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;
2329 static inline u64 wdev_id(struct wireless_dev *wdev)
2331 return (u64)wdev->identifier |
2332 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2335 static int nl80211_send_chandef(struct sk_buff *msg,
2336 const struct cfg80211_chan_def *chandef)
2338 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2341 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2342 chandef->chan->center_freq))
2344 switch (chandef->width) {
2345 case NL80211_CHAN_WIDTH_20_NOHT:
2346 case NL80211_CHAN_WIDTH_20:
2347 case NL80211_CHAN_WIDTH_40:
2348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2349 cfg80211_get_chandef_type(chandef)))
2355 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2357 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2359 if (chandef->center_freq2 &&
2360 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2365 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2366 struct cfg80211_registered_device *rdev,
2367 struct wireless_dev *wdev, bool removal)
2369 struct net_device *dev = wdev->netdev;
2370 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2374 cmd = NL80211_CMD_DEL_INTERFACE;
2376 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2381 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2382 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2383 goto nla_put_failure;
2385 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2386 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2387 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2388 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2389 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2390 rdev->devlist_generation ^
2391 (cfg80211_rdev_list_generation << 2)))
2392 goto nla_put_failure;
2394 if (rdev->ops->get_channel) {
2396 struct cfg80211_chan_def chandef;
2398 ret = rdev_get_channel(rdev, wdev, &chandef);
2400 if (nl80211_send_chandef(msg, &chandef))
2401 goto nla_put_failure;
2405 if (wdev->ssid_len) {
2406 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2407 goto nla_put_failure;
2410 genlmsg_end(msg, hdr);
2414 genlmsg_cancel(msg, hdr);
2418 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2422 int wp_start = cb->args[0];
2423 int if_start = cb->args[1];
2424 struct cfg80211_registered_device *rdev;
2425 struct wireless_dev *wdev;
2428 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2429 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2431 if (wp_idx < wp_start) {
2437 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2438 if (if_idx < if_start) {
2442 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2443 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2444 rdev, wdev, false) < 0) {
2455 cb->args[0] = wp_idx;
2456 cb->args[1] = if_idx;
2461 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2463 struct sk_buff *msg;
2464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2465 struct wireless_dev *wdev = info->user_ptr[1];
2467 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2471 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2472 rdev, wdev, false) < 0) {
2477 return genlmsg_reply(msg, info);
2480 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2481 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2482 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2483 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2484 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2485 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2486 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2489 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2491 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2499 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2500 nla, mntr_flags_policy))
2503 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2505 *mntrflags |= (1<<flag);
2510 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2511 struct net_device *netdev, u8 use_4addr,
2512 enum nl80211_iftype iftype)
2515 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2521 case NL80211_IFTYPE_AP_VLAN:
2522 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2525 case NL80211_IFTYPE_STATION:
2526 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2536 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2538 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2539 struct vif_params params;
2541 enum nl80211_iftype otype, ntype;
2542 struct net_device *dev = info->user_ptr[1];
2543 u32 _flags, *flags = NULL;
2544 bool change = false;
2546 memset(¶ms, 0, sizeof(params));
2548 otype = ntype = dev->ieee80211_ptr->iftype;
2550 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2551 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2554 if (ntype > NL80211_IFTYPE_MAX)
2558 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2559 struct wireless_dev *wdev = dev->ieee80211_ptr;
2561 if (ntype != NL80211_IFTYPE_MESH_POINT)
2563 if (netif_running(dev))
2567 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2568 IEEE80211_MAX_MESH_ID_LEN);
2569 wdev->mesh_id_up_len =
2570 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2571 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2572 wdev->mesh_id_up_len);
2576 if (info->attrs[NL80211_ATTR_4ADDR]) {
2577 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2579 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2583 params.use_4addr = -1;
2586 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2587 if (ntype != NL80211_IFTYPE_MONITOR)
2589 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2598 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2599 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2603 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2607 if (!err && params.use_4addr != -1)
2608 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2613 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2616 struct vif_params params;
2617 struct wireless_dev *wdev;
2618 struct sk_buff *msg, *event;
2620 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2623 /* to avoid failing a new interface creation due to pending removal */
2624 cfg80211_destroy_ifaces(rdev);
2626 memset(¶ms, 0, sizeof(params));
2628 if (!info->attrs[NL80211_ATTR_IFNAME])
2631 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2632 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2633 if (type > NL80211_IFTYPE_MAX)
2637 if (!rdev->ops->add_virtual_intf ||
2638 !(rdev->wiphy.interface_modes & (1 << type)))
2641 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2642 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2643 info->attrs[NL80211_ATTR_MAC]) {
2644 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2646 if (!is_valid_ether_addr(params.macaddr))
2647 return -EADDRNOTAVAIL;
2650 if (info->attrs[NL80211_ATTR_4ADDR]) {
2651 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2652 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2657 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2658 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2661 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2662 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2665 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2669 wdev = rdev_add_virtual_intf(rdev,
2670 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2671 NET_NAME_USER, type, err ? NULL : &flags,
2673 if (WARN_ON(!wdev)) {
2676 } else if (IS_ERR(wdev)) {
2678 return PTR_ERR(wdev);
2681 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2682 wdev->owner_nlportid = info->snd_portid;
2685 case NL80211_IFTYPE_MESH_POINT:
2686 if (!info->attrs[NL80211_ATTR_MESH_ID])
2689 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2690 IEEE80211_MAX_MESH_ID_LEN);
2691 wdev->mesh_id_up_len =
2692 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2693 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2694 wdev->mesh_id_up_len);
2697 case NL80211_IFTYPE_P2P_DEVICE:
2699 * P2P Device doesn't have a netdev, so doesn't go
2700 * through the netdev notifier and must be added here
2702 mutex_init(&wdev->mtx);
2703 INIT_LIST_HEAD(&wdev->event_list);
2704 spin_lock_init(&wdev->event_lock);
2705 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2706 spin_lock_init(&wdev->mgmt_registrations_lock);
2708 wdev->identifier = ++rdev->wdev_id;
2709 list_add_rcu(&wdev->list, &rdev->wdev_list);
2710 rdev->devlist_generation++;
2716 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2717 rdev, wdev, false) < 0) {
2722 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2724 if (nl80211_send_iface(event, 0, 0, 0,
2725 rdev, wdev, false) < 0) {
2730 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2731 event, 0, NL80211_MCGRP_CONFIG,
2736 return genlmsg_reply(msg, info);
2739 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2742 struct wireless_dev *wdev = info->user_ptr[1];
2743 struct sk_buff *msg;
2746 if (!rdev->ops->del_virtual_intf)
2749 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2750 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2756 * If we remove a wireless device without a netdev then clear
2757 * user_ptr[1] so that nl80211_post_doit won't dereference it
2758 * to check if it needs to do dev_put(). Otherwise it crashes
2759 * since the wdev has been freed, unlike with a netdev where
2760 * we need the dev_put() for the netdev to really be freed.
2763 info->user_ptr[1] = NULL;
2765 status = rdev_del_virtual_intf(rdev, wdev);
2766 if (status >= 0 && msg)
2767 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2768 msg, 0, NL80211_MCGRP_CONFIG,
2776 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2779 struct net_device *dev = info->user_ptr[1];
2782 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2785 if (!rdev->ops->set_noack_map)
2788 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2790 return rdev_set_noack_map(rdev, dev, noack_map);
2793 struct get_key_cookie {
2794 struct sk_buff *msg;
2799 static void get_key_callback(void *c, struct key_params *params)
2802 struct get_key_cookie *cookie = c;
2805 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2806 params->key_len, params->key)) ||
2808 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2809 params->seq_len, params->seq)) ||
2811 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2813 goto nla_put_failure;
2815 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2817 goto nla_put_failure;
2820 nla_put(cookie->msg, NL80211_KEY_DATA,
2821 params->key_len, params->key)) ||
2823 nla_put(cookie->msg, NL80211_KEY_SEQ,
2824 params->seq_len, params->seq)) ||
2826 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2828 goto nla_put_failure;
2830 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2831 goto nla_put_failure;
2833 nla_nest_end(cookie->msg, key);
2840 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2844 struct net_device *dev = info->user_ptr[1];
2846 const u8 *mac_addr = NULL;
2848 struct get_key_cookie cookie = {
2852 struct sk_buff *msg;
2854 if (info->attrs[NL80211_ATTR_KEY_IDX])
2855 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2860 if (info->attrs[NL80211_ATTR_MAC])
2861 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2863 pairwise = !!mac_addr;
2864 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2865 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2866 if (kt >= NUM_NL80211_KEYTYPES)
2868 if (kt != NL80211_KEYTYPE_GROUP &&
2869 kt != NL80211_KEYTYPE_PAIRWISE)
2871 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2874 if (!rdev->ops->get_key)
2877 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2884 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2885 NL80211_CMD_NEW_KEY);
2887 goto nla_put_failure;
2890 cookie.idx = key_idx;
2892 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2893 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2894 goto nla_put_failure;
2896 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2897 goto nla_put_failure;
2899 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2906 goto nla_put_failure;
2908 genlmsg_end(msg, hdr);
2909 return genlmsg_reply(msg, info);
2918 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2920 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2921 struct key_parse key;
2923 struct net_device *dev = info->user_ptr[1];
2925 err = nl80211_parse_key(info, &key);
2932 /* only support setting default key */
2933 if (!key.def && !key.defmgmt)
2936 wdev_lock(dev->ieee80211_ptr);
2939 if (!rdev->ops->set_default_key) {
2944 err = nl80211_key_allowed(dev->ieee80211_ptr);
2948 err = rdev_set_default_key(rdev, dev, key.idx,
2949 key.def_uni, key.def_multi);
2954 #ifdef CONFIG_CFG80211_WEXT
2955 dev->ieee80211_ptr->wext.default_key = key.idx;
2958 if (key.def_uni || !key.def_multi) {
2963 if (!rdev->ops->set_default_mgmt_key) {
2968 err = nl80211_key_allowed(dev->ieee80211_ptr);
2972 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2976 #ifdef CONFIG_CFG80211_WEXT
2977 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2982 wdev_unlock(dev->ieee80211_ptr);
2987 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2991 struct net_device *dev = info->user_ptr[1];
2992 struct key_parse key;
2993 const u8 *mac_addr = NULL;
2995 err = nl80211_parse_key(info, &key);
3002 if (info->attrs[NL80211_ATTR_MAC])
3003 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3005 if (key.type == -1) {
3007 key.type = NL80211_KEYTYPE_PAIRWISE;
3009 key.type = NL80211_KEYTYPE_GROUP;
3013 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3014 key.type != NL80211_KEYTYPE_GROUP)
3017 if (!rdev->ops->add_key)
3020 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3021 key.type == NL80211_KEYTYPE_PAIRWISE,
3025 wdev_lock(dev->ieee80211_ptr);
3026 err = nl80211_key_allowed(dev->ieee80211_ptr);
3028 err = rdev_add_key(rdev, dev, key.idx,
3029 key.type == NL80211_KEYTYPE_PAIRWISE,
3031 wdev_unlock(dev->ieee80211_ptr);
3036 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3040 struct net_device *dev = info->user_ptr[1];
3041 u8 *mac_addr = NULL;
3042 struct key_parse key;
3044 err = nl80211_parse_key(info, &key);
3048 if (info->attrs[NL80211_ATTR_MAC])
3049 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3051 if (key.type == -1) {
3053 key.type = NL80211_KEYTYPE_PAIRWISE;
3055 key.type = NL80211_KEYTYPE_GROUP;
3059 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3060 key.type != NL80211_KEYTYPE_GROUP)
3063 if (!rdev->ops->del_key)
3066 wdev_lock(dev->ieee80211_ptr);
3067 err = nl80211_key_allowed(dev->ieee80211_ptr);
3069 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3070 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3074 err = rdev_del_key(rdev, dev, key.idx,
3075 key.type == NL80211_KEYTYPE_PAIRWISE,
3078 #ifdef CONFIG_CFG80211_WEXT
3080 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3081 dev->ieee80211_ptr->wext.default_key = -1;
3082 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3083 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3086 wdev_unlock(dev->ieee80211_ptr);
3091 /* This function returns an error or the number of nested attributes */
3092 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3094 struct nlattr *attr;
3095 int n_entries = 0, tmp;
3097 nla_for_each_nested(attr, nl_attr, tmp) {
3098 if (nla_len(attr) != ETH_ALEN)
3108 * This function parses ACL information and allocates memory for ACL data.
3109 * On successful return, the calling function is responsible to free the
3110 * ACL buffer returned by this function.
3112 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3113 struct genl_info *info)
3115 enum nl80211_acl_policy acl_policy;
3116 struct nlattr *attr;
3117 struct cfg80211_acl_data *acl;
3118 int i = 0, n_entries, tmp;
3120 if (!wiphy->max_acl_mac_addrs)
3121 return ERR_PTR(-EOPNOTSUPP);
3123 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3124 return ERR_PTR(-EINVAL);
3126 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3127 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3128 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3129 return ERR_PTR(-EINVAL);
3131 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3132 return ERR_PTR(-EINVAL);
3134 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3136 return ERR_PTR(n_entries);
3138 if (n_entries > wiphy->max_acl_mac_addrs)
3139 return ERR_PTR(-ENOTSUPP);
3141 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3144 return ERR_PTR(-ENOMEM);
3146 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3147 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3151 acl->n_acl_entries = n_entries;
3152 acl->acl_policy = acl_policy;
3157 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3160 struct net_device *dev = info->user_ptr[1];
3161 struct cfg80211_acl_data *acl;
3164 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3165 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3168 if (!dev->ieee80211_ptr->beacon_interval)
3171 acl = parse_acl_data(&rdev->wiphy, info);
3173 return PTR_ERR(acl);
3175 err = rdev_set_mac_acl(rdev, dev, acl);
3182 static int nl80211_parse_beacon(struct nlattr *attrs[],
3183 struct cfg80211_beacon_data *bcn)
3185 bool haveinfo = false;
3187 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3188 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3189 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3190 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3193 memset(bcn, 0, sizeof(*bcn));
3195 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3196 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3197 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3203 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3204 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3205 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3212 if (attrs[NL80211_ATTR_IE]) {
3213 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3214 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3217 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3218 bcn->proberesp_ies =
3219 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3220 bcn->proberesp_ies_len =
3221 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3224 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3225 bcn->assocresp_ies =
3226 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3227 bcn->assocresp_ies_len =
3228 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3231 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3232 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3233 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3239 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3240 struct cfg80211_ap_settings *params)
3242 struct wireless_dev *wdev;
3245 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3246 if (wdev->iftype != NL80211_IFTYPE_AP &&
3247 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3250 if (!wdev->preset_chandef.chan)
3253 params->chandef = wdev->preset_chandef;
3261 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3262 enum nl80211_auth_type auth_type,
3263 enum nl80211_commands cmd)
3265 if (auth_type > NL80211_AUTHTYPE_MAX)
3269 case NL80211_CMD_AUTHENTICATE:
3270 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3271 auth_type == NL80211_AUTHTYPE_SAE)
3274 case NL80211_CMD_CONNECT:
3275 case NL80211_CMD_START_AP:
3276 /* SAE not supported yet */
3277 if (auth_type == NL80211_AUTHTYPE_SAE)
3285 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3288 struct net_device *dev = info->user_ptr[1];
3289 struct wireless_dev *wdev = dev->ieee80211_ptr;
3290 struct cfg80211_ap_settings params;
3293 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3294 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3297 if (!rdev->ops->start_ap)
3300 if (wdev->beacon_interval)
3303 memset(¶ms, 0, sizeof(params));
3305 /* these are required for START_AP */
3306 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3307 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3308 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3311 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3315 params.beacon_interval =
3316 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3317 params.dtim_period =
3318 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3320 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3325 * In theory, some of these attributes should be required here
3326 * but since they were not used when the command was originally
3327 * added, keep them optional for old user space programs to let
3328 * them continue to work with drivers that do not need the
3329 * additional information -- drivers must check!
3331 if (info->attrs[NL80211_ATTR_SSID]) {
3332 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3334 nla_len(info->attrs[NL80211_ATTR_SSID]);
3335 if (params.ssid_len == 0 ||
3336 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3340 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3341 params.hidden_ssid = nla_get_u32(
3342 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3343 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3344 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3345 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3349 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3351 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3352 params.auth_type = nla_get_u32(
3353 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3354 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3355 NL80211_CMD_START_AP))
3358 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3360 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3361 NL80211_MAX_NR_CIPHER_SUITES);
3365 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3366 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3368 params.inactivity_timeout = nla_get_u16(
3369 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3372 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3373 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3375 params.p2p_ctwindow =
3376 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3377 if (params.p2p_ctwindow > 127)
3379 if (params.p2p_ctwindow != 0 &&
3380 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3384 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3387 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3389 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3392 params.p2p_opp_ps = tmp;
3393 if (params.p2p_opp_ps != 0 &&
3394 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3398 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3399 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3402 } else if (wdev->preset_chandef.chan) {
3403 params.chandef = wdev->preset_chandef;
3404 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3407 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3411 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3412 params.acl = parse_acl_data(&rdev->wiphy, info);
3413 if (IS_ERR(params.acl))
3414 return PTR_ERR(params.acl);
3417 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3419 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3420 switch (params.smps_mode) {
3421 case NL80211_SMPS_OFF:
3423 case NL80211_SMPS_STATIC:
3424 if (!(rdev->wiphy.features &
3425 NL80211_FEATURE_STATIC_SMPS))
3428 case NL80211_SMPS_DYNAMIC:
3429 if (!(rdev->wiphy.features &
3430 NL80211_FEATURE_DYNAMIC_SMPS))
3437 params.smps_mode = NL80211_SMPS_OFF;
3441 err = rdev_start_ap(rdev, dev, ¶ms);
3443 wdev->preset_chandef = params.chandef;
3444 wdev->beacon_interval = params.beacon_interval;
3445 wdev->chandef = params.chandef;
3446 wdev->ssid_len = params.ssid_len;
3447 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3456 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3458 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3459 struct net_device *dev = info->user_ptr[1];
3460 struct wireless_dev *wdev = dev->ieee80211_ptr;
3461 struct cfg80211_beacon_data params;
3464 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3465 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3468 if (!rdev->ops->change_beacon)
3471 if (!wdev->beacon_interval)
3474 err = nl80211_parse_beacon(info->attrs, ¶ms);
3479 err = rdev_change_beacon(rdev, dev, ¶ms);
3485 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3488 struct net_device *dev = info->user_ptr[1];
3490 return cfg80211_stop_ap(rdev, dev, false);
3493 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3494 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3495 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3496 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3497 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3498 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3499 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3502 static int parse_station_flags(struct genl_info *info,
3503 enum nl80211_iftype iftype,
3504 struct station_parameters *params)
3506 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3511 * Try parsing the new attribute first so userspace
3512 * can specify both for older kernels.
3514 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3516 struct nl80211_sta_flag_update *sta_flags;
3518 sta_flags = nla_data(nla);
3519 params->sta_flags_mask = sta_flags->mask;
3520 params->sta_flags_set = sta_flags->set;
3521 params->sta_flags_set &= params->sta_flags_mask;
3522 if ((params->sta_flags_mask |
3523 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3528 /* if present, parse the old attribute */
3530 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3534 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3535 nla, sta_flags_policy))
3539 * Only allow certain flags for interface types so that
3540 * other attributes are silently ignored. Remember that
3541 * this is backward compatibility code with old userspace
3542 * and shouldn't be hit in other cases anyway.
3545 case NL80211_IFTYPE_AP:
3546 case NL80211_IFTYPE_AP_VLAN:
3547 case NL80211_IFTYPE_P2P_GO:
3548 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3549 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3550 BIT(NL80211_STA_FLAG_WME) |
3551 BIT(NL80211_STA_FLAG_MFP);
3553 case NL80211_IFTYPE_P2P_CLIENT:
3554 case NL80211_IFTYPE_STATION:
3555 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3556 BIT(NL80211_STA_FLAG_TDLS_PEER);
3558 case NL80211_IFTYPE_MESH_POINT:
3559 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3560 BIT(NL80211_STA_FLAG_MFP) |
3561 BIT(NL80211_STA_FLAG_AUTHORIZED);
3566 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3568 params->sta_flags_set |= (1<<flag);
3570 /* no longer support new API additions in old API */
3571 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3579 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3582 struct nlattr *rate;
3585 enum nl80211_attrs rate_flg;
3587 rate = nla_nest_start(msg, attr);
3591 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3592 bitrate = cfg80211_calculate_bitrate(info);
3593 /* report 16-bit bitrate only if we can */
3594 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3596 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3598 if (bitrate_compat > 0 &&
3599 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3603 case RATE_INFO_BW_5:
3604 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3606 case RATE_INFO_BW_10:
3607 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3612 case RATE_INFO_BW_20:
3615 case RATE_INFO_BW_40:
3616 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3618 case RATE_INFO_BW_80:
3619 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3621 case RATE_INFO_BW_160:
3622 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3626 if (rate_flg && nla_put_flag(msg, rate_flg))
3629 if (info->flags & RATE_INFO_FLAGS_MCS) {
3630 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3632 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3633 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3635 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3636 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3638 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3640 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3641 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3645 nla_nest_end(msg, rate);
3649 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3658 attr = nla_nest_start(msg, id);
3662 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3663 if (!(mask & BIT(i)))
3666 if (nla_put_u8(msg, i, signal[i]))
3670 nla_nest_end(msg, attr);
3675 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3677 struct cfg80211_registered_device *rdev,
3678 struct net_device *dev,
3679 const u8 *mac_addr, struct station_info *sinfo)
3682 struct nlattr *sinfoattr, *bss_param;
3684 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3688 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3689 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3690 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3691 goto nla_put_failure;
3693 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3695 goto nla_put_failure;
3697 #define PUT_SINFO(attr, memb, type) do { \
3698 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3699 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3701 goto nla_put_failure; \
3704 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3705 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3707 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3708 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
3709 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3710 (u32)sinfo->rx_bytes))
3711 goto nla_put_failure;
3713 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3714 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
3715 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3716 (u32)sinfo->tx_bytes))
3717 goto nla_put_failure;
3719 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3720 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3721 PUT_SINFO(LLID, llid, u16);
3722 PUT_SINFO(PLID, plid, u16);
3723 PUT_SINFO(PLINK_STATE, plink_state, u8);
3725 switch (rdev->wiphy.signal_type) {
3726 case CFG80211_SIGNAL_TYPE_MBM:
3727 PUT_SINFO(SIGNAL, signal, u8);
3728 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
3733 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
3734 if (!nl80211_put_signal(msg, sinfo->chains,
3735 sinfo->chain_signal,
3736 NL80211_STA_INFO_CHAIN_SIGNAL))
3737 goto nla_put_failure;
3739 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
3740 if (!nl80211_put_signal(msg, sinfo->chains,
3741 sinfo->chain_signal_avg,
3742 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3743 goto nla_put_failure;
3745 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
3746 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3747 NL80211_STA_INFO_TX_BITRATE))
3748 goto nla_put_failure;
3750 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
3751 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3752 NL80211_STA_INFO_RX_BITRATE))
3753 goto nla_put_failure;
3756 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3757 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3758 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3759 PUT_SINFO(TX_FAILED, tx_failed, u32);
3760 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3761 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3762 PUT_SINFO(LOCAL_PM, local_pm, u32);
3763 PUT_SINFO(PEER_PM, peer_pm, u32);
3764 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3766 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
3767 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3769 goto nla_put_failure;
3771 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3772 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3773 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3774 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3775 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3776 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3777 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3778 sinfo->bss_param.dtim_period) ||
3779 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3780 sinfo->bss_param.beacon_interval))
3781 goto nla_put_failure;
3783 nla_nest_end(msg, bss_param);
3785 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
3786 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3787 sizeof(struct nl80211_sta_flag_update),
3789 goto nla_put_failure;
3791 PUT_SINFO(T_OFFSET, t_offset, u64);
3792 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
3793 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3794 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
3798 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3799 struct nlattr *tidsattr;
3802 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3804 goto nla_put_failure;
3806 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3807 struct cfg80211_tid_stats *tidstats;
3808 struct nlattr *tidattr;
3810 tidstats = &sinfo->pertid[tid];
3812 if (!tidstats->filled)
3815 tidattr = nla_nest_start(msg, tid + 1);
3817 goto nla_put_failure;
3819 #define PUT_TIDVAL(attr, memb, type) do { \
3820 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3821 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3823 goto nla_put_failure; \
3826 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3827 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3828 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3829 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3832 nla_nest_end(msg, tidattr);
3835 nla_nest_end(msg, tidsattr);
3838 nla_nest_end(msg, sinfoattr);
3840 if (sinfo->assoc_req_ies_len &&
3841 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3842 sinfo->assoc_req_ies))
3843 goto nla_put_failure;
3845 genlmsg_end(msg, hdr);
3849 genlmsg_cancel(msg, hdr);
3853 static int nl80211_dump_station(struct sk_buff *skb,
3854 struct netlink_callback *cb)
3856 struct station_info sinfo;
3857 struct cfg80211_registered_device *rdev;
3858 struct wireless_dev *wdev;
3859 u8 mac_addr[ETH_ALEN];
3860 int sta_idx = cb->args[2];
3863 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3867 if (!wdev->netdev) {
3872 if (!rdev->ops->dump_station) {
3878 memset(&sinfo, 0, sizeof(sinfo));
3879 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3886 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
3887 NETLINK_CB(cb->skb).portid,
3888 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3889 rdev, wdev->netdev, mac_addr,
3898 cb->args[2] = sta_idx;
3901 nl80211_finish_wdev_dump(rdev);
3906 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3909 struct net_device *dev = info->user_ptr[1];
3910 struct station_info sinfo;
3911 struct sk_buff *msg;
3912 u8 *mac_addr = NULL;
3915 memset(&sinfo, 0, sizeof(sinfo));
3917 if (!info->attrs[NL80211_ATTR_MAC])
3920 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3922 if (!rdev->ops->get_station)
3925 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3933 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3934 info->snd_portid, info->snd_seq, 0,
3935 rdev, dev, mac_addr, &sinfo) < 0) {
3940 return genlmsg_reply(msg, info);
3943 int cfg80211_check_station_change(struct wiphy *wiphy,
3944 struct station_parameters *params,
3945 enum cfg80211_station_type statype)
3947 if (params->listen_interval != -1)
3950 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3953 /* When you run into this, adjust the code below for the new flag */
3954 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3957 case CFG80211_STA_MESH_PEER_KERNEL:
3958 case CFG80211_STA_MESH_PEER_USER:
3960 * No ignoring the TDLS flag here -- the userspace mesh
3961 * code doesn't have the bug of including TDLS in the
3964 if (params->sta_flags_mask &
3965 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3966 BIT(NL80211_STA_FLAG_MFP) |
3967 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3970 case CFG80211_STA_TDLS_PEER_SETUP:
3971 case CFG80211_STA_TDLS_PEER_ACTIVE:
3972 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3974 /* ignore since it can't change */
3975 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3978 /* disallow mesh-specific things */
3979 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3981 if (params->local_pm)
3983 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3987 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3988 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3989 /* TDLS can't be set, ... */
3990 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3993 * ... but don't bother the driver with it. This works around
3994 * a hostapd/wpa_supplicant issue -- it always includes the
3995 * TLDS_PEER flag in the mask even for AP mode.
3997 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4000 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
4001 /* reject other things that can't change */
4002 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4004 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4006 if (params->supported_rates)
4008 if (params->ext_capab || params->ht_capa || params->vht_capa)
4012 if (statype != CFG80211_STA_AP_CLIENT) {
4018 case CFG80211_STA_AP_MLME_CLIENT:
4019 /* Use this only for authorizing/unauthorizing a station */
4020 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4023 case CFG80211_STA_AP_CLIENT:
4024 /* accept only the listed bits */
4025 if (params->sta_flags_mask &
4026 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4027 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4028 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4029 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4030 BIT(NL80211_STA_FLAG_WME) |
4031 BIT(NL80211_STA_FLAG_MFP)))
4034 /* but authenticated/associated only if driver handles it */
4035 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4036 params->sta_flags_mask &
4037 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4038 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4041 case CFG80211_STA_IBSS:
4042 case CFG80211_STA_AP_STA:
4043 /* reject any changes other than AUTHORIZED */
4044 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4047 case CFG80211_STA_TDLS_PEER_SETUP:
4048 /* reject any changes other than AUTHORIZED or WME */
4049 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4050 BIT(NL80211_STA_FLAG_WME)))
4052 /* force (at least) rates when authorizing */
4053 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4054 !params->supported_rates)
4057 case CFG80211_STA_TDLS_PEER_ACTIVE:
4058 /* reject any changes */
4060 case CFG80211_STA_MESH_PEER_KERNEL:
4061 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4064 case CFG80211_STA_MESH_PEER_USER:
4065 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4066 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4073 EXPORT_SYMBOL(cfg80211_check_station_change);
4076 * Get vlan interface making sure it is running and on the right wiphy.
4078 static struct net_device *get_vlan(struct genl_info *info,
4079 struct cfg80211_registered_device *rdev)
4081 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4082 struct net_device *v;
4088 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4090 return ERR_PTR(-ENODEV);
4092 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4097 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4098 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4099 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4104 if (!netif_running(v)) {
4112 return ERR_PTR(ret);
4115 static const struct nla_policy
4116 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4117 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4118 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4121 static int nl80211_parse_sta_wme(struct genl_info *info,
4122 struct station_parameters *params)
4124 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4128 /* parse WME attributes if present */
4129 if (!info->attrs[NL80211_ATTR_STA_WME])
4132 nla = info->attrs[NL80211_ATTR_STA_WME];
4133 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4134 nl80211_sta_wme_policy);
4138 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4139 params->uapsd_queues = nla_get_u8(
4140 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4141 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4144 if (tb[NL80211_STA_WME_MAX_SP])
4145 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4147 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4150 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4155 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4156 struct station_parameters *params)
4158 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4159 params->supported_channels =
4160 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4161 params->supported_channels_len =
4162 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4164 * Need to include at least one (first channel, number of
4165 * channels) tuple for each subband, and must have proper
4166 * tuples for the rest of the data as well.
4168 if (params->supported_channels_len < 2)
4170 if (params->supported_channels_len % 2)
4174 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4175 params->supported_oper_classes =
4176 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4177 params->supported_oper_classes_len =
4178 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4180 * The value of the Length field of the Supported Operating
4181 * Classes element is between 2 and 253.
4183 if (params->supported_oper_classes_len < 2 ||
4184 params->supported_oper_classes_len > 253)
4190 static int nl80211_set_station_tdls(struct genl_info *info,
4191 struct station_parameters *params)
4194 /* Dummy STA entry gets updated once the peer capabilities are known */
4195 if (info->attrs[NL80211_ATTR_PEER_AID])
4196 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4197 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4199 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4200 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4202 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4204 err = nl80211_parse_sta_channel_info(info, params);
4208 return nl80211_parse_sta_wme(info, params);
4211 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4213 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4214 struct net_device *dev = info->user_ptr[1];
4215 struct station_parameters params;
4219 memset(¶ms, 0, sizeof(params));
4221 params.listen_interval = -1;
4223 if (!rdev->ops->change_station)
4226 if (info->attrs[NL80211_ATTR_STA_AID])
4229 if (!info->attrs[NL80211_ATTR_MAC])
4232 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4234 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4235 params.supported_rates =
4236 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4237 params.supported_rates_len =
4238 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4241 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4243 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4244 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4247 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4249 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4250 params.ext_capab_len =
4251 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4254 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4257 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4260 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4261 params.plink_action =
4262 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4263 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4267 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4268 params.plink_state =
4269 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4270 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4272 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4275 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4276 enum nl80211_mesh_power_mode pm = nla_get_u32(
4277 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4279 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4280 pm > NL80211_MESH_POWER_MAX)
4283 params.local_pm = pm;
4286 /* Include parameters for TDLS peer (will check later) */
4287 err = nl80211_set_station_tdls(info, ¶ms);
4291 params.vlan = get_vlan(info, rdev);
4292 if (IS_ERR(params.vlan))
4293 return PTR_ERR(params.vlan);
4295 switch (dev->ieee80211_ptr->iftype) {
4296 case NL80211_IFTYPE_AP:
4297 case NL80211_IFTYPE_AP_VLAN:
4298 case NL80211_IFTYPE_P2P_GO:
4299 case NL80211_IFTYPE_P2P_CLIENT:
4300 case NL80211_IFTYPE_STATION:
4301 case NL80211_IFTYPE_ADHOC:
4302 case NL80211_IFTYPE_MESH_POINT:
4309 /* driver will call cfg80211_check_station_change() */
4310 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4314 dev_put(params.vlan);
4319 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4323 struct net_device *dev = info->user_ptr[1];
4324 struct station_parameters params;
4325 u8 *mac_addr = NULL;
4327 memset(¶ms, 0, sizeof(params));
4329 if (!rdev->ops->add_station)
4332 if (!info->attrs[NL80211_ATTR_MAC])
4335 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4338 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4341 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4342 !info->attrs[NL80211_ATTR_PEER_AID])
4345 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4346 params.supported_rates =
4347 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4348 params.supported_rates_len =
4349 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4350 params.listen_interval =
4351 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4353 if (info->attrs[NL80211_ATTR_PEER_AID])
4354 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4356 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4357 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4360 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4362 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4363 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4366 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4368 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4369 params.ext_capab_len =
4370 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4373 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4375 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4377 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4379 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4381 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4382 params.opmode_notif_used = true;
4383 params.opmode_notif =
4384 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4387 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4388 params.plink_action =
4389 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4390 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4394 err = nl80211_parse_sta_channel_info(info, ¶ms);
4398 err = nl80211_parse_sta_wme(info, ¶ms);
4402 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4405 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4406 * as userspace might just pass through the capabilities from the IEs
4407 * directly, rather than enforcing this restriction and returning an
4408 * error in this case.
4410 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4411 params.ht_capa = NULL;
4412 params.vht_capa = NULL;
4415 /* When you run into this, adjust the code below for the new flag */
4416 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4418 switch (dev->ieee80211_ptr->iftype) {
4419 case NL80211_IFTYPE_AP:
4420 case NL80211_IFTYPE_AP_VLAN:
4421 case NL80211_IFTYPE_P2P_GO:
4422 /* ignore WME attributes if iface/sta is not capable */
4423 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4424 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4425 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4427 /* TDLS peers cannot be added */
4428 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4429 info->attrs[NL80211_ATTR_PEER_AID])
4431 /* but don't bother the driver with it */
4432 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4434 /* allow authenticated/associated only if driver handles it */
4435 if (!(rdev->wiphy.features &
4436 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4437 params.sta_flags_mask &
4438 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4439 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4442 /* must be last in here for error handling */
4443 params.vlan = get_vlan(info, rdev);
4444 if (IS_ERR(params.vlan))
4445 return PTR_ERR(params.vlan);
4447 case NL80211_IFTYPE_MESH_POINT:
4448 /* ignore uAPSD data */
4449 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4451 /* associated is disallowed */
4452 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4454 /* TDLS peers cannot be added */
4455 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4456 info->attrs[NL80211_ATTR_PEER_AID])
4459 case NL80211_IFTYPE_STATION:
4460 case NL80211_IFTYPE_P2P_CLIENT:
4461 /* ignore uAPSD data */
4462 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4464 /* these are disallowed */
4465 if (params.sta_flags_mask &
4466 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4467 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4469 /* Only TDLS peers can be added */
4470 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4472 /* Can only add if TDLS ... */
4473 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4475 /* ... with external setup is supported */
4476 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4479 * Older wpa_supplicant versions always mark the TDLS peer
4480 * as authorized, but it shouldn't yet be.
4482 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4488 /* be aware of params.vlan when changing code here */
4490 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4493 dev_put(params.vlan);
4497 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4500 struct net_device *dev = info->user_ptr[1];
4501 struct station_del_parameters params;
4503 memset(¶ms, 0, sizeof(params));
4505 if (info->attrs[NL80211_ATTR_MAC])
4506 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4508 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4509 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4510 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4511 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4514 if (!rdev->ops->del_station)
4517 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4519 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4520 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4521 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4524 /* Default to Deauthentication frame */
4525 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4528 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4529 params.reason_code =
4530 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4531 if (params.reason_code == 0)
4532 return -EINVAL; /* 0 is reserved */
4534 /* Default to reason code 2 */
4535 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4538 return rdev_del_station(rdev, dev, ¶ms);
4541 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4542 int flags, struct net_device *dev,
4543 u8 *dst, u8 *next_hop,
4544 struct mpath_info *pinfo)
4547 struct nlattr *pinfoattr;
4549 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4553 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4554 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4555 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4556 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4557 goto nla_put_failure;
4559 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4561 goto nla_put_failure;
4562 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4563 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4565 goto nla_put_failure;
4566 if (((pinfo->filled & MPATH_INFO_SN) &&
4567 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4568 ((pinfo->filled & MPATH_INFO_METRIC) &&
4569 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4571 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4572 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4574 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4575 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4577 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4578 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4579 pinfo->discovery_timeout)) ||
4580 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4581 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4582 pinfo->discovery_retries)))
4583 goto nla_put_failure;
4585 nla_nest_end(msg, pinfoattr);
4587 genlmsg_end(msg, hdr);
4591 genlmsg_cancel(msg, hdr);
4595 static int nl80211_dump_mpath(struct sk_buff *skb,
4596 struct netlink_callback *cb)
4598 struct mpath_info pinfo;
4599 struct cfg80211_registered_device *rdev;
4600 struct wireless_dev *wdev;
4602 u8 next_hop[ETH_ALEN];
4603 int path_idx = cb->args[2];
4606 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4610 if (!rdev->ops->dump_mpath) {
4615 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4621 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4628 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4629 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4630 wdev->netdev, dst, next_hop,
4639 cb->args[2] = path_idx;
4642 nl80211_finish_wdev_dump(rdev);
4646 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4650 struct net_device *dev = info->user_ptr[1];
4651 struct mpath_info pinfo;
4652 struct sk_buff *msg;
4654 u8 next_hop[ETH_ALEN];
4656 memset(&pinfo, 0, sizeof(pinfo));
4658 if (!info->attrs[NL80211_ATTR_MAC])
4661 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4663 if (!rdev->ops->get_mpath)
4666 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4669 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4673 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4677 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4678 dev, dst, next_hop, &pinfo) < 0) {
4683 return genlmsg_reply(msg, info);
4686 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4689 struct net_device *dev = info->user_ptr[1];
4691 u8 *next_hop = NULL;
4693 if (!info->attrs[NL80211_ATTR_MAC])
4696 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4699 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4700 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4702 if (!rdev->ops->change_mpath)
4705 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4708 return rdev_change_mpath(rdev, dev, dst, next_hop);
4711 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4714 struct net_device *dev = info->user_ptr[1];
4716 u8 *next_hop = NULL;
4718 if (!info->attrs[NL80211_ATTR_MAC])
4721 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4724 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4725 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4727 if (!rdev->ops->add_mpath)
4730 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4733 return rdev_add_mpath(rdev, dev, dst, next_hop);
4736 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4739 struct net_device *dev = info->user_ptr[1];
4742 if (info->attrs[NL80211_ATTR_MAC])
4743 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4745 if (!rdev->ops->del_mpath)
4748 return rdev_del_mpath(rdev, dev, dst);
4751 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4755 struct net_device *dev = info->user_ptr[1];
4756 struct mpath_info pinfo;
4757 struct sk_buff *msg;
4761 memset(&pinfo, 0, sizeof(pinfo));
4763 if (!info->attrs[NL80211_ATTR_MAC])
4766 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4768 if (!rdev->ops->get_mpp)
4771 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4774 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4778 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4782 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4783 dev, dst, mpp, &pinfo) < 0) {
4788 return genlmsg_reply(msg, info);
4791 static int nl80211_dump_mpp(struct sk_buff *skb,
4792 struct netlink_callback *cb)
4794 struct mpath_info pinfo;
4795 struct cfg80211_registered_device *rdev;
4796 struct wireless_dev *wdev;
4799 int path_idx = cb->args[2];
4802 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4806 if (!rdev->ops->dump_mpp) {
4811 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4817 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4824 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4825 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4826 wdev->netdev, dst, mpp,
4834 cb->args[2] = path_idx;
4837 nl80211_finish_wdev_dump(rdev);
4841 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4844 struct net_device *dev = info->user_ptr[1];
4845 struct wireless_dev *wdev = dev->ieee80211_ptr;
4846 struct bss_parameters params;
4849 memset(¶ms, 0, sizeof(params));
4850 /* default to not changing parameters */
4851 params.use_cts_prot = -1;
4852 params.use_short_preamble = -1;
4853 params.use_short_slot_time = -1;
4854 params.ap_isolate = -1;
4855 params.ht_opmode = -1;
4856 params.p2p_ctwindow = -1;
4857 params.p2p_opp_ps = -1;
4859 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4860 params.use_cts_prot =
4861 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4862 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4863 params.use_short_preamble =
4864 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4865 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4866 params.use_short_slot_time =
4867 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4868 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4869 params.basic_rates =
4870 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4871 params.basic_rates_len =
4872 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4874 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4875 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4876 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4878 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4880 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4881 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4883 params.p2p_ctwindow =
4884 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4885 if (params.p2p_ctwindow < 0)
4887 if (params.p2p_ctwindow != 0 &&
4888 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4892 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4895 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4897 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4900 params.p2p_opp_ps = tmp;
4901 if (params.p2p_opp_ps &&
4902 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4906 if (!rdev->ops->change_bss)
4909 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4910 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4914 err = rdev_change_bss(rdev, dev, ¶ms);
4920 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4921 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4922 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4923 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4924 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4925 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4926 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4927 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
4930 static int parse_reg_rule(struct nlattr *tb[],
4931 struct ieee80211_reg_rule *reg_rule)
4933 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4934 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4936 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4938 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4940 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4942 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4944 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4947 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4949 freq_range->start_freq_khz =
4950 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4951 freq_range->end_freq_khz =
4952 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4953 freq_range->max_bandwidth_khz =
4954 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4956 power_rule->max_eirp =
4957 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4959 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4960 power_rule->max_antenna_gain =
4961 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4963 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4964 reg_rule->dfs_cac_ms =
4965 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4970 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4974 enum nl80211_user_reg_hint_type user_reg_hint_type;
4979 * You should only get this when cfg80211 hasn't yet initialized
4980 * completely when built-in to the kernel right between the time
4981 * window between nl80211_init() and regulatory_init(), if that is
4984 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4985 return -EINPROGRESS;
4987 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4988 user_reg_hint_type =
4989 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4991 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4993 switch (user_reg_hint_type) {
4994 case NL80211_USER_REG_HINT_USER:
4995 case NL80211_USER_REG_HINT_CELL_BASE:
4996 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4999 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5000 return regulatory_hint_user(data, user_reg_hint_type);
5001 case NL80211_USER_REG_HINT_INDOOR:
5002 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5003 owner_nlportid = info->snd_portid;
5004 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5010 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5016 static int nl80211_get_mesh_config(struct sk_buff *skb,
5017 struct genl_info *info)
5019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5020 struct net_device *dev = info->user_ptr[1];
5021 struct wireless_dev *wdev = dev->ieee80211_ptr;
5022 struct mesh_config cur_params;
5025 struct nlattr *pinfoattr;
5026 struct sk_buff *msg;
5028 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5031 if (!rdev->ops->get_mesh_config)
5035 /* If not connected, get default parameters */
5036 if (!wdev->mesh_id_len)
5037 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5039 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5045 /* Draw up a netlink message to send back */
5046 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5049 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5050 NL80211_CMD_GET_MESH_CONFIG);
5053 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5055 goto nla_put_failure;
5056 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5057 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5058 cur_params.dot11MeshRetryTimeout) ||
5059 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5060 cur_params.dot11MeshConfirmTimeout) ||
5061 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5062 cur_params.dot11MeshHoldingTimeout) ||
5063 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5064 cur_params.dot11MeshMaxPeerLinks) ||
5065 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5066 cur_params.dot11MeshMaxRetries) ||
5067 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5068 cur_params.dot11MeshTTL) ||
5069 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5070 cur_params.element_ttl) ||
5071 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5072 cur_params.auto_open_plinks) ||
5073 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5074 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5075 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5076 cur_params.dot11MeshHWMPmaxPREQretries) ||
5077 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5078 cur_params.path_refresh_time) ||
5079 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5080 cur_params.min_discovery_timeout) ||
5081 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5082 cur_params.dot11MeshHWMPactivePathTimeout) ||
5083 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5084 cur_params.dot11MeshHWMPpreqMinInterval) ||
5085 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5086 cur_params.dot11MeshHWMPperrMinInterval) ||
5087 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5088 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5089 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5090 cur_params.dot11MeshHWMPRootMode) ||
5091 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5092 cur_params.dot11MeshHWMPRannInterval) ||
5093 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5094 cur_params.dot11MeshGateAnnouncementProtocol) ||
5095 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5096 cur_params.dot11MeshForwarding) ||
5097 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5098 cur_params.rssi_threshold) ||
5099 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5100 cur_params.ht_opmode) ||
5101 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5102 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5103 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5104 cur_params.dot11MeshHWMProotInterval) ||
5105 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5106 cur_params.dot11MeshHWMPconfirmationInterval) ||
5107 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5108 cur_params.power_mode) ||
5109 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5110 cur_params.dot11MeshAwakeWindowDuration) ||
5111 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5112 cur_params.plink_timeout))
5113 goto nla_put_failure;
5114 nla_nest_end(msg, pinfoattr);
5115 genlmsg_end(msg, hdr);
5116 return genlmsg_reply(msg, info);
5119 genlmsg_cancel(msg, hdr);
5125 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5126 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5127 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5128 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5129 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5130 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5131 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5132 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5133 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5134 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5135 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5136 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5137 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5138 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5139 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5140 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5141 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5142 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5143 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5144 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5145 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5146 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5147 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5148 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5149 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5150 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5151 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5152 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5153 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5156 static const struct nla_policy
5157 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5158 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5159 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5160 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5161 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5162 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5163 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5164 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5165 .len = IEEE80211_MAX_DATA_LEN },
5166 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5169 static int nl80211_parse_mesh_config(struct genl_info *info,
5170 struct mesh_config *cfg,
5173 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5176 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5179 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5181 cfg->param = fn(tb[attr]); \
5182 mask |= (1 << (attr - 1)); \
5187 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5189 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5190 info->attrs[NL80211_ATTR_MESH_CONFIG],
5191 nl80211_meshconf_params_policy))
5194 /* This makes sure that there aren't more than 32 mesh config
5195 * parameters (otherwise our bitfield scheme would not work.) */
5196 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5198 /* Fill in the params struct */
5199 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5200 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5202 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5203 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5206 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5208 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5209 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5211 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5212 mask, NL80211_MESHCONF_MAX_RETRIES,
5214 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5215 mask, NL80211_MESHCONF_TTL, nla_get_u8);
5216 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5217 mask, NL80211_MESHCONF_ELEMENT_TTL,
5219 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5220 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5222 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5224 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5227 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5230 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5233 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5237 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5239 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5241 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5243 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5245 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5247 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5248 dot11MeshHWMPnetDiameterTraversalTime,
5250 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5252 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5253 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5255 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5256 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5258 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5259 dot11MeshGateAnnouncementProtocol, 0, 1,
5260 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5262 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5263 mask, NL80211_MESHCONF_FORWARDING,
5265 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5266 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5268 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5269 mask, NL80211_MESHCONF_HT_OPMODE,
5271 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5273 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5275 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5276 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5278 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5279 dot11MeshHWMPconfirmationInterval,
5281 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5283 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5284 NL80211_MESH_POWER_ACTIVE,
5285 NL80211_MESH_POWER_MAX,
5286 mask, NL80211_MESHCONF_POWER_MODE,
5288 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5290 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5291 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5292 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5299 #undef FILL_IN_MESH_PARAM_IF_SET
5302 static int nl80211_parse_mesh_setup(struct genl_info *info,
5303 struct mesh_setup *setup)
5305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5306 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5308 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5310 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5311 info->attrs[NL80211_ATTR_MESH_SETUP],
5312 nl80211_mesh_setup_params_policy))
5315 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5316 setup->sync_method =
5317 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5318 IEEE80211_SYNC_METHOD_VENDOR :
5319 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5321 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5322 setup->path_sel_proto =
5323 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5324 IEEE80211_PATH_PROTOCOL_VENDOR :
5325 IEEE80211_PATH_PROTOCOL_HWMP;
5327 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5328 setup->path_metric =
5329 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5330 IEEE80211_PATH_METRIC_VENDOR :
5331 IEEE80211_PATH_METRIC_AIRTIME;
5334 if (tb[NL80211_MESH_SETUP_IE]) {
5335 struct nlattr *ieattr =
5336 tb[NL80211_MESH_SETUP_IE];
5337 if (!is_valid_ie_attr(ieattr))
5339 setup->ie = nla_data(ieattr);
5340 setup->ie_len = nla_len(ieattr);
5342 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5343 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5345 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5346 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5347 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5348 if (setup->is_secure)
5349 setup->user_mpm = true;
5351 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5352 if (!setup->user_mpm)
5355 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5361 static int nl80211_update_mesh_config(struct sk_buff *skb,
5362 struct genl_info *info)
5364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5365 struct net_device *dev = info->user_ptr[1];
5366 struct wireless_dev *wdev = dev->ieee80211_ptr;
5367 struct mesh_config cfg;
5371 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5374 if (!rdev->ops->update_mesh_config)
5377 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5382 if (!wdev->mesh_id_len)
5386 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5393 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5394 struct sk_buff *msg)
5396 struct nlattr *nl_reg_rules;
5399 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5400 (regdom->dfs_region &&
5401 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5402 goto nla_put_failure;
5404 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5406 goto nla_put_failure;
5408 for (i = 0; i < regdom->n_reg_rules; i++) {
5409 struct nlattr *nl_reg_rule;
5410 const struct ieee80211_reg_rule *reg_rule;
5411 const struct ieee80211_freq_range *freq_range;
5412 const struct ieee80211_power_rule *power_rule;
5413 unsigned int max_bandwidth_khz;
5415 reg_rule = ®dom->reg_rules[i];
5416 freq_range = ®_rule->freq_range;
5417 power_rule = ®_rule->power_rule;
5419 nl_reg_rule = nla_nest_start(msg, i);
5421 goto nla_put_failure;
5423 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5424 if (!max_bandwidth_khz)
5425 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5428 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5430 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5431 freq_range->start_freq_khz) ||
5432 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5433 freq_range->end_freq_khz) ||
5434 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5435 max_bandwidth_khz) ||
5436 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5437 power_rule->max_antenna_gain) ||
5438 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5439 power_rule->max_eirp) ||
5440 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5441 reg_rule->dfs_cac_ms))
5442 goto nla_put_failure;
5444 nla_nest_end(msg, nl_reg_rule);
5447 nla_nest_end(msg, nl_reg_rules);
5454 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5456 const struct ieee80211_regdomain *regdom = NULL;
5457 struct cfg80211_registered_device *rdev;
5458 struct wiphy *wiphy = NULL;
5459 struct sk_buff *msg;
5462 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5466 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5467 NL80211_CMD_GET_REG);
5471 if (info->attrs[NL80211_ATTR_WIPHY]) {
5474 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5477 return PTR_ERR(rdev);
5480 wiphy = &rdev->wiphy;
5481 self_managed = wiphy->regulatory_flags &
5482 REGULATORY_WIPHY_SELF_MANAGED;
5483 regdom = get_wiphy_regdom(wiphy);
5485 /* a self-managed-reg device must have a private regdom */
5486 if (WARN_ON(!regdom && self_managed)) {
5492 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5493 goto nla_put_failure;
5496 if (!wiphy && reg_last_request_cell_base() &&
5497 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5498 NL80211_USER_REG_HINT_CELL_BASE))
5499 goto nla_put_failure;
5504 regdom = rcu_dereference(cfg80211_regdomain);
5506 if (nl80211_put_regdom(regdom, msg))
5507 goto nla_put_failure_rcu;
5511 genlmsg_end(msg, hdr);
5512 return genlmsg_reply(msg, info);
5514 nla_put_failure_rcu:
5517 genlmsg_cancel(msg, hdr);
5523 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5524 u32 seq, int flags, struct wiphy *wiphy,
5525 const struct ieee80211_regdomain *regdom)
5527 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5528 NL80211_CMD_GET_REG);
5533 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5535 if (nl80211_put_regdom(regdom, msg))
5536 goto nla_put_failure;
5538 if (!wiphy && reg_last_request_cell_base() &&
5539 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5540 NL80211_USER_REG_HINT_CELL_BASE))
5541 goto nla_put_failure;
5544 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5545 goto nla_put_failure;
5547 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5548 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5549 goto nla_put_failure;
5551 genlmsg_end(msg, hdr);
5555 genlmsg_cancel(msg, hdr);
5559 static int nl80211_get_reg_dump(struct sk_buff *skb,
5560 struct netlink_callback *cb)
5562 const struct ieee80211_regdomain *regdom = NULL;
5563 struct cfg80211_registered_device *rdev;
5564 int err, reg_idx, start = cb->args[2];
5568 if (cfg80211_regdomain && start == 0) {
5569 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5571 rtnl_dereference(cfg80211_regdomain));
5576 /* the global regdom is idx 0 */
5578 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5579 regdom = get_wiphy_regdom(&rdev->wiphy);
5583 if (++reg_idx <= start)
5586 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5587 NLM_F_MULTI, &rdev->wiphy, regdom);
5594 cb->args[2] = reg_idx;
5601 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5603 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5604 struct nlattr *nl_reg_rule;
5606 int rem_reg_rules, r;
5607 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5608 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5609 struct ieee80211_regdomain *rd;
5611 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5614 if (!info->attrs[NL80211_ATTR_REG_RULES])
5617 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5619 if (info->attrs[NL80211_ATTR_DFS_REGION])
5620 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5622 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5625 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5629 if (!reg_is_valid_request(alpha2))
5632 size_of_regd = sizeof(struct ieee80211_regdomain) +
5633 num_rules * sizeof(struct ieee80211_reg_rule);
5635 rd = kzalloc(size_of_regd, GFP_KERNEL);
5639 rd->n_reg_rules = num_rules;
5640 rd->alpha2[0] = alpha2[0];
5641 rd->alpha2[1] = alpha2[1];
5644 * Disable DFS master mode if the DFS region was
5645 * not supported or known on this kernel.
5647 if (reg_supported_dfs_region(dfs_region))
5648 rd->dfs_region = dfs_region;
5650 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5652 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5653 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5657 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5663 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5669 r = set_regdom(rd, REGD_SOURCE_CRDA);
5670 /* set_regdom took ownership */
5678 static int validate_scan_freqs(struct nlattr *freqs)
5680 struct nlattr *attr1, *attr2;
5681 int n_channels = 0, tmp1, tmp2;
5683 nla_for_each_nested(attr1, freqs, tmp1) {
5686 * Some hardware has a limited channel list for
5687 * scanning, and it is pretty much nonsensical
5688 * to scan for a channel twice, so disallow that
5689 * and don't require drivers to check that the
5690 * channel list they get isn't longer than what
5691 * they can scan, as long as they can scan all
5692 * the channels they registered at once.
5694 nla_for_each_nested(attr2, freqs, tmp2)
5695 if (attr1 != attr2 &&
5696 nla_get_u32(attr1) == nla_get_u32(attr2))
5703 static int nl80211_parse_random_mac(struct nlattr **attrs,
5704 u8 *mac_addr, u8 *mac_addr_mask)
5708 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5709 eth_zero_addr(mac_addr);
5710 eth_zero_addr(mac_addr_mask);
5712 mac_addr_mask[0] = 0x3;
5717 /* need both or none */
5718 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5721 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5722 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5724 /* don't allow or configure an mcast address */
5725 if (!is_multicast_ether_addr(mac_addr_mask) ||
5726 is_multicast_ether_addr(mac_addr))
5730 * allow users to pass a MAC address that has bits set outside
5731 * of the mask, but don't bother drivers with having to deal
5734 for (i = 0; i < ETH_ALEN; i++)
5735 mac_addr[i] &= mac_addr_mask[i];
5740 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5743 struct wireless_dev *wdev = info->user_ptr[1];
5744 struct cfg80211_scan_request *request;
5745 struct nlattr *attr;
5746 struct wiphy *wiphy;
5747 int err, tmp, n_ssids = 0, n_channels, i;
5750 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5753 wiphy = &rdev->wiphy;
5755 if (!rdev->ops->scan)
5758 if (rdev->scan_req || rdev->scan_msg) {
5763 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5764 n_channels = validate_scan_freqs(
5765 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5771 n_channels = ieee80211_get_num_supported_channels(wiphy);
5774 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5775 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5778 if (n_ssids > wiphy->max_scan_ssids) {
5783 if (info->attrs[NL80211_ATTR_IE])
5784 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5788 if (ie_len > wiphy->max_scan_ie_len) {
5793 request = kzalloc(sizeof(*request)
5794 + sizeof(*request->ssids) * n_ssids
5795 + sizeof(*request->channels) * n_channels
5796 + ie_len, GFP_KERNEL);
5803 request->ssids = (void *)&request->channels[n_channels];
5804 request->n_ssids = n_ssids;
5807 request->ie = (void *)(request->ssids + n_ssids);
5809 request->ie = (void *)(request->channels + n_channels);
5813 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5814 /* user specified, bail out if channel not found */
5815 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5816 struct ieee80211_channel *chan;
5818 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5825 /* ignore disabled channels */
5826 if (chan->flags & IEEE80211_CHAN_DISABLED)
5829 request->channels[i] = chan;
5833 enum ieee80211_band band;
5836 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5838 if (!wiphy->bands[band])
5840 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5841 struct ieee80211_channel *chan;
5843 chan = &wiphy->bands[band]->channels[j];
5845 if (chan->flags & IEEE80211_CHAN_DISABLED)
5848 request->channels[i] = chan;
5859 request->n_channels = i;
5863 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5864 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5868 request->ssids[i].ssid_len = nla_len(attr);
5869 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5874 if (info->attrs[NL80211_ATTR_IE]) {
5875 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5876 memcpy((void *)request->ie,
5877 nla_data(info->attrs[NL80211_ATTR_IE]),
5881 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5882 if (wiphy->bands[i])
5884 (1 << wiphy->bands[i]->n_bitrates) - 1;
5886 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5887 nla_for_each_nested(attr,
5888 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5890 enum ieee80211_band band = nla_type(attr);
5892 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5897 if (!wiphy->bands[band])
5900 err = ieee80211_get_ratemask(wiphy->bands[band],
5903 &request->rates[band]);
5909 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5910 request->flags = nla_get_u32(
5911 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5912 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5913 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5918 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5919 if (!(wiphy->features &
5920 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5925 if (wdev->current_bss) {
5930 err = nl80211_parse_random_mac(info->attrs,
5932 request->mac_addr_mask);
5939 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5941 request->wdev = wdev;
5942 request->wiphy = &rdev->wiphy;
5943 request->scan_start = jiffies;
5945 rdev->scan_req = request;
5946 err = rdev_scan(rdev, request);
5949 nl80211_send_scan_start(rdev, wdev);
5951 dev_hold(wdev->netdev);
5954 rdev->scan_req = NULL;
5962 static struct cfg80211_sched_scan_request *
5963 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
5964 struct nlattr **attrs)
5966 struct cfg80211_sched_scan_request *request;
5967 struct nlattr *attr;
5968 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5970 enum ieee80211_band band;
5972 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5973 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5975 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5976 return ERR_PTR(-EINVAL);
5978 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5979 return ERR_PTR(-EINVAL);
5981 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5983 return ERR_PTR(-EINVAL);
5985 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5986 n_channels = validate_scan_freqs(
5987 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5989 return ERR_PTR(-EINVAL);
5991 n_channels = ieee80211_get_num_supported_channels(wiphy);
5994 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5995 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
5999 if (n_ssids > wiphy->max_sched_scan_ssids)
6000 return ERR_PTR(-EINVAL);
6003 * First, count the number of 'real' matchsets. Due to an issue with
6004 * the old implementation, matchsets containing only the RSSI attribute
6005 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6006 * RSSI for all matchsets, rather than their own matchset for reporting
6007 * all APs with a strong RSSI. This is needed to be compatible with
6008 * older userspace that treated a matchset with only the RSSI as the
6009 * global RSSI for all other matchsets - if there are other matchsets.
6011 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6012 nla_for_each_nested(attr,
6013 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6015 struct nlattr *rssi;
6017 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6018 nla_data(attr), nla_len(attr),
6019 nl80211_match_policy);
6021 return ERR_PTR(err);
6022 /* add other standalone attributes here */
6023 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6027 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6029 default_match_rssi = nla_get_s32(rssi);
6033 /* However, if there's no other matchset, add the RSSI one */
6034 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6037 if (n_match_sets > wiphy->max_match_sets)
6038 return ERR_PTR(-EINVAL);
6040 if (attrs[NL80211_ATTR_IE])
6041 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6045 if (ie_len > wiphy->max_sched_scan_ie_len)
6046 return ERR_PTR(-EINVAL);
6048 request = kzalloc(sizeof(*request)
6049 + sizeof(*request->ssids) * n_ssids
6050 + sizeof(*request->match_sets) * n_match_sets
6051 + sizeof(*request->channels) * n_channels
6052 + ie_len, GFP_KERNEL);
6054 return ERR_PTR(-ENOMEM);
6057 request->ssids = (void *)&request->channels[n_channels];
6058 request->n_ssids = n_ssids;
6061 request->ie = (void *)(request->ssids + n_ssids);
6063 request->ie = (void *)(request->channels + n_channels);
6068 request->match_sets = (void *)(request->ie + ie_len);
6070 request->match_sets =
6071 (void *)(request->ssids + n_ssids);
6073 request->match_sets =
6074 (void *)(request->channels + n_channels);
6076 request->n_match_sets = n_match_sets;
6079 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6080 /* user specified, bail out if channel not found */
6081 nla_for_each_nested(attr,
6082 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
6084 struct ieee80211_channel *chan;
6086 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6093 /* ignore disabled channels */
6094 if (chan->flags & IEEE80211_CHAN_DISABLED)
6097 request->channels[i] = chan;
6102 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6104 if (!wiphy->bands[band])
6106 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6107 struct ieee80211_channel *chan;
6109 chan = &wiphy->bands[band]->channels[j];
6111 if (chan->flags & IEEE80211_CHAN_DISABLED)
6114 request->channels[i] = chan;
6125 request->n_channels = i;
6129 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6131 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6135 request->ssids[i].ssid_len = nla_len(attr);
6136 memcpy(request->ssids[i].ssid, nla_data(attr),
6143 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6144 nla_for_each_nested(attr,
6145 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6147 struct nlattr *ssid, *rssi;
6149 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6150 nla_data(attr), nla_len(attr),
6151 nl80211_match_policy);
6154 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
6156 if (WARN_ON(i >= n_match_sets)) {
6157 /* this indicates a programming error,
6158 * the loop above should have verified
6165 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6169 memcpy(request->match_sets[i].ssid.ssid,
6170 nla_data(ssid), nla_len(ssid));
6171 request->match_sets[i].ssid.ssid_len =
6173 /* special attribute - old implemenation w/a */
6174 request->match_sets[i].rssi_thold =
6176 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6178 request->match_sets[i].rssi_thold =
6184 /* there was no other matchset, so the RSSI one is alone */
6185 if (i == 0 && n_match_sets)
6186 request->match_sets[0].rssi_thold = default_match_rssi;
6188 request->min_rssi_thold = INT_MAX;
6189 for (i = 0; i < n_match_sets; i++)
6190 request->min_rssi_thold =
6191 min(request->match_sets[i].rssi_thold,
6192 request->min_rssi_thold);
6194 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6198 request->ie_len = ie_len;
6199 memcpy((void *)request->ie,
6200 nla_data(attrs[NL80211_ATTR_IE]),
6204 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6205 request->flags = nla_get_u32(
6206 attrs[NL80211_ATTR_SCAN_FLAGS]);
6207 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6208 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6213 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6214 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6216 if (!wdev) /* must be net-detect */
6217 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6219 if (!(wiphy->features & flg)) {
6224 if (wdev && wdev->current_bss) {
6229 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6230 request->mac_addr_mask);
6236 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6238 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6240 request->interval = interval;
6241 request->scan_start = jiffies;
6247 return ERR_PTR(err);
6250 static int nl80211_start_sched_scan(struct sk_buff *skb,
6251 struct genl_info *info)
6253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6254 struct net_device *dev = info->user_ptr[1];
6255 struct wireless_dev *wdev = dev->ieee80211_ptr;
6256 struct cfg80211_sched_scan_request *sched_scan_req;
6259 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6260 !rdev->ops->sched_scan_start)
6263 if (rdev->sched_scan_req)
6264 return -EINPROGRESS;
6266 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6269 err = PTR_ERR_OR_ZERO(sched_scan_req);
6273 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
6277 sched_scan_req->dev = dev;
6278 sched_scan_req->wiphy = &rdev->wiphy;
6280 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6281 sched_scan_req->owner_nlportid = info->snd_portid;
6283 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
6285 nl80211_send_sched_scan(rdev, dev,
6286 NL80211_CMD_START_SCHED_SCAN);
6290 kfree(sched_scan_req);
6295 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6296 struct genl_info *info)
6298 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6300 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6301 !rdev->ops->sched_scan_stop)
6304 return __cfg80211_stop_sched_scan(rdev, false);
6307 static int nl80211_start_radar_detection(struct sk_buff *skb,
6308 struct genl_info *info)
6310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6311 struct net_device *dev = info->user_ptr[1];
6312 struct wireless_dev *wdev = dev->ieee80211_ptr;
6313 struct cfg80211_chan_def chandef;
6314 enum nl80211_dfs_regions dfs_region;
6315 unsigned int cac_time_ms;
6318 dfs_region = reg_get_dfs_region(wdev->wiphy);
6319 if (dfs_region == NL80211_DFS_UNSET)
6322 err = nl80211_parse_chandef(rdev, info, &chandef);
6326 if (netif_carrier_ok(dev))
6329 if (wdev->cac_started)
6332 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6340 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6343 if (!rdev->ops->start_radar_detection)
6346 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6347 if (WARN_ON(!cac_time_ms))
6348 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6350 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6353 wdev->chandef = chandef;
6354 wdev->cac_started = true;
6355 wdev->cac_start_time = jiffies;
6356 wdev->cac_time_ms = cac_time_ms;
6361 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6364 struct net_device *dev = info->user_ptr[1];
6365 struct wireless_dev *wdev = dev->ieee80211_ptr;
6366 struct cfg80211_csa_settings params;
6367 /* csa_attrs is defined static to avoid waste of stack size - this
6368 * function is called under RTNL lock, so this should not be a problem.
6370 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6372 bool need_new_beacon = false;
6376 if (!rdev->ops->channel_switch ||
6377 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6380 switch (dev->ieee80211_ptr->iftype) {
6381 case NL80211_IFTYPE_AP:
6382 case NL80211_IFTYPE_P2P_GO:
6383 need_new_beacon = true;
6385 /* useless if AP is not running */
6386 if (!wdev->beacon_interval)
6389 case NL80211_IFTYPE_ADHOC:
6390 if (!wdev->ssid_len)
6393 case NL80211_IFTYPE_MESH_POINT:
6394 if (!wdev->mesh_id_len)
6401 memset(¶ms, 0, sizeof(params));
6403 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6404 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6407 /* only important for AP, IBSS and mesh create IEs internally */
6408 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6411 /* Even though the attribute is u32, the specification says
6412 * u8, so let's make sure we don't overflow.
6414 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6418 params.count = cs_count;
6420 if (!need_new_beacon)
6423 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6427 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6428 info->attrs[NL80211_ATTR_CSA_IES],
6433 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6437 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6440 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6441 if (!len || (len % sizeof(u16)))
6444 params.n_counter_offsets_beacon = len / sizeof(u16);
6445 if (rdev->wiphy.max_num_csa_counters &&
6446 (params.n_counter_offsets_beacon >
6447 rdev->wiphy.max_num_csa_counters))
6450 params.counter_offsets_beacon =
6451 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6453 /* sanity checks - counters should fit and be the same */
6454 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6455 u16 offset = params.counter_offsets_beacon[i];
6457 if (offset >= params.beacon_csa.tail_len)
6460 if (params.beacon_csa.tail[offset] != params.count)
6464 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6465 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6466 if (!len || (len % sizeof(u16)))
6469 params.n_counter_offsets_presp = len / sizeof(u16);
6470 if (rdev->wiphy.max_num_csa_counters &&
6471 (params.n_counter_offsets_beacon >
6472 rdev->wiphy.max_num_csa_counters))
6475 params.counter_offsets_presp =
6476 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6478 /* sanity checks - counters should fit and be the same */
6479 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6480 u16 offset = params.counter_offsets_presp[i];
6482 if (offset >= params.beacon_csa.probe_resp_len)
6485 if (params.beacon_csa.probe_resp[offset] !=
6492 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6496 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
6500 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6507 params.radar_required = true;
6509 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6510 params.block_tx = true;
6513 err = rdev_channel_switch(rdev, dev, ¶ms);
6519 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6521 struct cfg80211_registered_device *rdev,
6522 struct wireless_dev *wdev,
6523 struct cfg80211_internal_bss *intbss)
6525 struct cfg80211_bss *res = &intbss->pub;
6526 const struct cfg80211_bss_ies *ies;
6530 ASSERT_WDEV_LOCK(wdev);
6532 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6533 NL80211_CMD_NEW_SCAN_RESULTS);
6537 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6539 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6540 goto nla_put_failure;
6542 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6543 goto nla_put_failure;
6544 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6545 goto nla_put_failure;
6547 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6549 goto nla_put_failure;
6550 if ((!is_zero_ether_addr(res->bssid) &&
6551 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6552 goto nla_put_failure;
6555 /* indicate whether we have probe response data or not */
6556 if (rcu_access_pointer(res->proberesp_ies) &&
6557 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6558 goto fail_unlock_rcu;
6560 /* this pointer prefers to be pointed to probe response data
6561 * but is always valid
6563 ies = rcu_dereference(res->ies);
6565 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6566 goto fail_unlock_rcu;
6567 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6568 ies->len, ies->data))
6569 goto fail_unlock_rcu;
6572 /* and this pointer is always (unless driver didn't know) beacon data */
6573 ies = rcu_dereference(res->beacon_ies);
6574 if (ies && ies->from_beacon) {
6575 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6576 goto fail_unlock_rcu;
6577 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6578 ies->len, ies->data))
6579 goto fail_unlock_rcu;
6583 if (res->beacon_interval &&
6584 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6585 goto nla_put_failure;
6586 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6587 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6588 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6589 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6590 jiffies_to_msecs(jiffies - intbss->ts)))
6591 goto nla_put_failure;
6593 switch (rdev->wiphy.signal_type) {
6594 case CFG80211_SIGNAL_TYPE_MBM:
6595 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6596 goto nla_put_failure;
6598 case CFG80211_SIGNAL_TYPE_UNSPEC:
6599 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6600 goto nla_put_failure;
6606 switch (wdev->iftype) {
6607 case NL80211_IFTYPE_P2P_CLIENT:
6608 case NL80211_IFTYPE_STATION:
6609 if (intbss == wdev->current_bss &&
6610 nla_put_u32(msg, NL80211_BSS_STATUS,
6611 NL80211_BSS_STATUS_ASSOCIATED))
6612 goto nla_put_failure;
6614 case NL80211_IFTYPE_ADHOC:
6615 if (intbss == wdev->current_bss &&
6616 nla_put_u32(msg, NL80211_BSS_STATUS,
6617 NL80211_BSS_STATUS_IBSS_JOINED))
6618 goto nla_put_failure;
6624 nla_nest_end(msg, bss);
6626 genlmsg_end(msg, hdr);
6632 genlmsg_cancel(msg, hdr);
6636 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6638 struct cfg80211_registered_device *rdev;
6639 struct cfg80211_internal_bss *scan;
6640 struct wireless_dev *wdev;
6641 int start = cb->args[2], idx = 0;
6644 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6649 spin_lock_bh(&rdev->bss_lock);
6650 cfg80211_bss_expire(rdev);
6652 cb->seq = rdev->bss_generation;
6654 list_for_each_entry(scan, &rdev->bss_list, list) {
6657 if (nl80211_send_bss(skb, cb,
6658 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6659 rdev, wdev, scan) < 0) {
6665 spin_unlock_bh(&rdev->bss_lock);
6669 nl80211_finish_wdev_dump(rdev);
6674 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6675 int flags, struct net_device *dev,
6676 bool allow_radio_stats,
6677 struct survey_info *survey)
6680 struct nlattr *infoattr;
6682 /* skip radio stats if userspace didn't request them */
6683 if (!survey->channel && !allow_radio_stats)
6686 hdr = nl80211hdr_put(msg, portid, seq, flags,
6687 NL80211_CMD_NEW_SURVEY_RESULTS);
6691 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6692 goto nla_put_failure;
6694 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6696 goto nla_put_failure;
6698 if (survey->channel &&
6699 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6700 survey->channel->center_freq))
6701 goto nla_put_failure;
6703 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6704 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6705 goto nla_put_failure;
6706 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6707 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6708 goto nla_put_failure;
6709 if ((survey->filled & SURVEY_INFO_TIME) &&
6710 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6712 goto nla_put_failure;
6713 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6714 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6716 goto nla_put_failure;
6717 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6718 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6719 survey->time_ext_busy))
6720 goto nla_put_failure;
6721 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6722 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6724 goto nla_put_failure;
6725 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6726 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6728 goto nla_put_failure;
6729 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6730 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6732 goto nla_put_failure;
6734 nla_nest_end(msg, infoattr);
6736 genlmsg_end(msg, hdr);
6740 genlmsg_cancel(msg, hdr);
6744 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
6746 struct survey_info survey;
6747 struct cfg80211_registered_device *rdev;
6748 struct wireless_dev *wdev;
6749 int survey_idx = cb->args[2];
6753 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6757 /* prepare_wdev_dump parsed the attributes */
6758 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6760 if (!wdev->netdev) {
6765 if (!rdev->ops->dump_survey) {
6771 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6777 /* don't send disabled channels, but do send non-channel data */
6778 if (survey.channel &&
6779 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
6784 if (nl80211_send_survey(skb,
6785 NETLINK_CB(cb->skb).portid,
6786 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6787 wdev->netdev, radio_stats, &survey) < 0)
6793 cb->args[2] = survey_idx;
6796 nl80211_finish_wdev_dump(rdev);
6800 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6802 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6803 NL80211_WPA_VERSION_2));
6806 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6809 struct net_device *dev = info->user_ptr[1];
6810 struct ieee80211_channel *chan;
6811 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6812 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6813 enum nl80211_auth_type auth_type;
6814 struct key_parse key;
6815 bool local_state_change;
6817 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6820 if (!info->attrs[NL80211_ATTR_MAC])
6823 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6826 if (!info->attrs[NL80211_ATTR_SSID])
6829 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6832 err = nl80211_parse_key(info, &key);
6837 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6839 if (!key.p.key || !key.p.key_len)
6841 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6842 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6843 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6844 key.p.key_len != WLAN_KEY_LEN_WEP104))
6856 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6857 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6866 if (!rdev->ops->auth)
6869 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6870 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6873 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6874 chan = nl80211_get_valid_chan(&rdev->wiphy,
6875 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6879 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6880 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6882 if (info->attrs[NL80211_ATTR_IE]) {
6883 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6884 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6887 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6888 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6891 if (auth_type == NL80211_AUTHTYPE_SAE &&
6892 !info->attrs[NL80211_ATTR_SAE_DATA])
6895 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6896 if (auth_type != NL80211_AUTHTYPE_SAE)
6898 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6899 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6900 /* need to include at least Auth Transaction and Status Code */
6901 if (sae_data_len < 4)
6905 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6908 * Since we no longer track auth state, ignore
6909 * requests to only change local state.
6911 if (local_state_change)
6914 wdev_lock(dev->ieee80211_ptr);
6915 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6916 ssid, ssid_len, ie, ie_len,
6917 key.p.key, key.p.key_len, key.idx,
6918 sae_data, sae_data_len);
6919 wdev_unlock(dev->ieee80211_ptr);
6923 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6924 struct genl_info *info,
6925 struct cfg80211_crypto_settings *settings,
6928 memset(settings, 0, sizeof(*settings));
6930 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6932 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6934 proto = nla_get_u16(
6935 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6936 settings->control_port_ethertype = cpu_to_be16(proto);
6937 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6940 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6941 settings->control_port_no_encrypt = true;
6943 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6945 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6949 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6950 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6951 settings->n_ciphers_pairwise = len / sizeof(u32);
6953 if (len % sizeof(u32))
6956 if (settings->n_ciphers_pairwise > cipher_limit)
6959 memcpy(settings->ciphers_pairwise, data, len);
6961 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6962 if (!cfg80211_supported_cipher_suite(
6964 settings->ciphers_pairwise[i]))
6968 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6969 settings->cipher_group =
6970 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6971 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6972 settings->cipher_group))
6976 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6977 settings->wpa_versions =
6978 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6979 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6983 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6987 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6988 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6989 settings->n_akm_suites = len / sizeof(u32);
6991 if (len % sizeof(u32))
6994 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6997 memcpy(settings->akm_suites, data, len);
7003 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7006 struct net_device *dev = info->user_ptr[1];
7007 struct ieee80211_channel *chan;
7008 struct cfg80211_assoc_request req = {};
7009 const u8 *bssid, *ssid;
7010 int err, ssid_len = 0;
7012 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7015 if (!info->attrs[NL80211_ATTR_MAC] ||
7016 !info->attrs[NL80211_ATTR_SSID] ||
7017 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7020 if (!rdev->ops->assoc)
7023 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7024 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7027 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7029 chan = nl80211_get_valid_chan(&rdev->wiphy,
7030 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7034 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7035 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7037 if (info->attrs[NL80211_ATTR_IE]) {
7038 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7039 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7042 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7043 enum nl80211_mfp mfp =
7044 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7045 if (mfp == NL80211_MFP_REQUIRED)
7047 else if (mfp != NL80211_MFP_NO)
7051 if (info->attrs[NL80211_ATTR_PREV_BSSID])
7052 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
7054 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7055 req.flags |= ASSOC_REQ_DISABLE_HT;
7057 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7058 memcpy(&req.ht_capa_mask,
7059 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7060 sizeof(req.ht_capa_mask));
7062 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7063 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7065 memcpy(&req.ht_capa,
7066 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7067 sizeof(req.ht_capa));
7070 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7071 req.flags |= ASSOC_REQ_DISABLE_VHT;
7073 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7074 memcpy(&req.vht_capa_mask,
7075 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7076 sizeof(req.vht_capa_mask));
7078 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7079 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7081 memcpy(&req.vht_capa,
7082 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7083 sizeof(req.vht_capa));
7086 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7087 if (!(rdev->wiphy.features &
7088 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7089 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7091 req.flags |= ASSOC_REQ_USE_RRM;
7094 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
7096 wdev_lock(dev->ieee80211_ptr);
7097 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7098 ssid, ssid_len, &req);
7099 wdev_unlock(dev->ieee80211_ptr);
7105 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7107 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7108 struct net_device *dev = info->user_ptr[1];
7109 const u8 *ie = NULL, *bssid;
7110 int ie_len = 0, err;
7112 bool local_state_change;
7114 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7117 if (!info->attrs[NL80211_ATTR_MAC])
7120 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7123 if (!rdev->ops->deauth)
7126 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7127 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7130 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7132 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7133 if (reason_code == 0) {
7134 /* Reason Code 0 is reserved */
7138 if (info->attrs[NL80211_ATTR_IE]) {
7139 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7140 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7143 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7145 wdev_lock(dev->ieee80211_ptr);
7146 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7147 local_state_change);
7148 wdev_unlock(dev->ieee80211_ptr);
7152 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7155 struct net_device *dev = info->user_ptr[1];
7156 const u8 *ie = NULL, *bssid;
7157 int ie_len = 0, err;
7159 bool local_state_change;
7161 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7164 if (!info->attrs[NL80211_ATTR_MAC])
7167 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7170 if (!rdev->ops->disassoc)
7173 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7174 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7177 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7179 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7180 if (reason_code == 0) {
7181 /* Reason Code 0 is reserved */
7185 if (info->attrs[NL80211_ATTR_IE]) {
7186 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7187 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7190 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7192 wdev_lock(dev->ieee80211_ptr);
7193 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7194 local_state_change);
7195 wdev_unlock(dev->ieee80211_ptr);
7200 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7201 int mcast_rate[IEEE80211_NUM_BANDS],
7204 struct wiphy *wiphy = &rdev->wiphy;
7208 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7209 struct ieee80211_supported_band *sband;
7211 sband = wiphy->bands[band];
7215 for (i = 0; i < sband->n_bitrates; i++) {
7216 if (sband->bitrates[i].bitrate == rateval) {
7217 mcast_rate[band] = i + 1;
7227 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7230 struct net_device *dev = info->user_ptr[1];
7231 struct cfg80211_ibss_params ibss;
7232 struct wiphy *wiphy;
7233 struct cfg80211_cached_keys *connkeys = NULL;
7236 memset(&ibss, 0, sizeof(ibss));
7238 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7241 if (!info->attrs[NL80211_ATTR_SSID] ||
7242 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7245 ibss.beacon_interval = 100;
7247 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7248 ibss.beacon_interval =
7249 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7250 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7254 if (!rdev->ops->join_ibss)
7257 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7260 wiphy = &rdev->wiphy;
7262 if (info->attrs[NL80211_ATTR_MAC]) {
7263 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7265 if (!is_valid_ether_addr(ibss.bssid))
7268 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7269 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7271 if (info->attrs[NL80211_ATTR_IE]) {
7272 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7273 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7276 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7280 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7281 NL80211_IFTYPE_ADHOC))
7284 switch (ibss.chandef.width) {
7285 case NL80211_CHAN_WIDTH_5:
7286 case NL80211_CHAN_WIDTH_10:
7287 case NL80211_CHAN_WIDTH_20_NOHT:
7289 case NL80211_CHAN_WIDTH_20:
7290 case NL80211_CHAN_WIDTH_40:
7291 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7294 case NL80211_CHAN_WIDTH_80:
7295 case NL80211_CHAN_WIDTH_80P80:
7296 case NL80211_CHAN_WIDTH_160:
7297 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7299 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7300 NL80211_EXT_FEATURE_VHT_IBSS))
7307 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7308 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7310 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7312 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7314 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7315 struct ieee80211_supported_band *sband =
7316 wiphy->bands[ibss.chandef.chan->band];
7318 err = ieee80211_get_ratemask(sband, rates, n_rates,
7324 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7325 memcpy(&ibss.ht_capa_mask,
7326 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7327 sizeof(ibss.ht_capa_mask));
7329 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7330 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7332 memcpy(&ibss.ht_capa,
7333 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7334 sizeof(ibss.ht_capa));
7337 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7338 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7339 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7342 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7345 connkeys = nl80211_parse_connkeys(rdev,
7346 info->attrs[NL80211_ATTR_KEYS],
7348 if (IS_ERR(connkeys))
7349 return PTR_ERR(connkeys);
7351 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7359 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7361 ibss.userspace_handles_dfs =
7362 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7364 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7370 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7373 struct net_device *dev = info->user_ptr[1];
7375 if (!rdev->ops->leave_ibss)
7378 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7381 return cfg80211_leave_ibss(rdev, dev, false);
7384 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7387 struct net_device *dev = info->user_ptr[1];
7388 int mcast_rate[IEEE80211_NUM_BANDS];
7392 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7393 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7396 if (!rdev->ops->set_mcast_rate)
7399 memset(mcast_rate, 0, sizeof(mcast_rate));
7401 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7404 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7405 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7408 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7413 static struct sk_buff *
7414 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7415 struct wireless_dev *wdev, int approxlen,
7416 u32 portid, u32 seq, enum nl80211_commands cmd,
7417 enum nl80211_attrs attr,
7418 const struct nl80211_vendor_cmd_info *info,
7421 struct sk_buff *skb;
7423 struct nlattr *data;
7425 skb = nlmsg_new(approxlen + 100, gfp);
7429 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7435 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7436 goto nla_put_failure;
7439 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7441 goto nla_put_failure;
7442 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7444 goto nla_put_failure;
7448 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7450 goto nla_put_failure;
7452 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7453 wdev->netdev->ifindex))
7454 goto nla_put_failure;
7457 data = nla_nest_start(skb, attr);
7459 ((void **)skb->cb)[0] = rdev;
7460 ((void **)skb->cb)[1] = hdr;
7461 ((void **)skb->cb)[2] = data;
7470 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7471 struct wireless_dev *wdev,
7472 enum nl80211_commands cmd,
7473 enum nl80211_attrs attr,
7474 int vendor_event_idx,
7475 int approxlen, gfp_t gfp)
7477 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7478 const struct nl80211_vendor_cmd_info *info;
7481 case NL80211_CMD_TESTMODE:
7482 if (WARN_ON(vendor_event_idx != -1))
7486 case NL80211_CMD_VENDOR:
7487 if (WARN_ON(vendor_event_idx < 0 ||
7488 vendor_event_idx >= wiphy->n_vendor_events))
7490 info = &wiphy->vendor_events[vendor_event_idx];
7497 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
7498 cmd, attr, info, gfp);
7500 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7502 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7504 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7505 void *hdr = ((void **)skb->cb)[1];
7506 struct nlattr *data = ((void **)skb->cb)[2];
7507 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7509 /* clear CB data for netlink core to own from now on */
7510 memset(skb->cb, 0, sizeof(skb->cb));
7512 nla_nest_end(skb, data);
7513 genlmsg_end(skb, hdr);
7515 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7516 mcgrp = NL80211_MCGRP_VENDOR;
7518 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7521 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7523 #ifdef CONFIG_NL80211_TESTMODE
7524 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7527 struct wireless_dev *wdev =
7528 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7531 if (!rdev->ops->testmode_cmd)
7535 err = PTR_ERR(wdev);
7539 } else if (wdev->wiphy != &rdev->wiphy) {
7543 if (!info->attrs[NL80211_ATTR_TESTDATA])
7546 rdev->cur_cmd_info = info;
7547 err = rdev_testmode_cmd(rdev, wdev,
7548 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7549 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7550 rdev->cur_cmd_info = NULL;
7555 static int nl80211_testmode_dump(struct sk_buff *skb,
7556 struct netlink_callback *cb)
7558 struct cfg80211_registered_device *rdev;
7568 * 0 is a valid index, but not valid for args[0],
7569 * so we need to offset by 1.
7571 phy_idx = cb->args[0] - 1;
7573 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7574 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7579 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7580 nl80211_fam.attrbuf);
7582 err = PTR_ERR(rdev);
7585 phy_idx = rdev->wiphy_idx;
7588 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7590 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7594 data = nla_data((void *)cb->args[1]);
7595 data_len = nla_len((void *)cb->args[1]);
7598 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7604 if (!rdev->ops->testmode_dump) {
7610 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7611 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7612 NL80211_CMD_TESTMODE);
7613 struct nlattr *tmdata;
7618 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7619 genlmsg_cancel(skb, hdr);
7623 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7625 genlmsg_cancel(skb, hdr);
7628 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7629 nla_nest_end(skb, tmdata);
7631 if (err == -ENOBUFS || err == -ENOENT) {
7632 genlmsg_cancel(skb, hdr);
7635 genlmsg_cancel(skb, hdr);
7639 genlmsg_end(skb, hdr);
7644 cb->args[0] = phy_idx + 1;
7651 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7654 struct net_device *dev = info->user_ptr[1];
7655 struct cfg80211_connect_params connect;
7656 struct wiphy *wiphy;
7657 struct cfg80211_cached_keys *connkeys = NULL;
7660 memset(&connect, 0, sizeof(connect));
7662 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7665 if (!info->attrs[NL80211_ATTR_SSID] ||
7666 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7669 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7671 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7672 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7673 NL80211_CMD_CONNECT))
7676 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7678 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7680 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7681 NL80211_MAX_NR_CIPHER_SUITES);
7685 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7686 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7689 wiphy = &rdev->wiphy;
7691 connect.bg_scan_period = -1;
7692 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7693 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7694 connect.bg_scan_period =
7695 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7698 if (info->attrs[NL80211_ATTR_MAC])
7699 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7700 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7701 connect.bssid_hint =
7702 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7703 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7704 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7706 if (info->attrs[NL80211_ATTR_IE]) {
7707 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7708 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7711 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7712 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7713 if (connect.mfp != NL80211_MFP_REQUIRED &&
7714 connect.mfp != NL80211_MFP_NO)
7717 connect.mfp = NL80211_MFP_NO;
7720 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7721 connect.channel = nl80211_get_valid_chan(
7722 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7723 if (!connect.channel)
7725 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7726 connect.channel_hint = nl80211_get_valid_chan(
7727 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7728 if (!connect.channel_hint)
7732 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7733 connkeys = nl80211_parse_connkeys(rdev,
7734 info->attrs[NL80211_ATTR_KEYS], NULL);
7735 if (IS_ERR(connkeys))
7736 return PTR_ERR(connkeys);
7739 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7740 connect.flags |= ASSOC_REQ_DISABLE_HT;
7742 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7743 memcpy(&connect.ht_capa_mask,
7744 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7745 sizeof(connect.ht_capa_mask));
7747 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7748 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7752 memcpy(&connect.ht_capa,
7753 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7754 sizeof(connect.ht_capa));
7757 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7758 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7760 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7761 memcpy(&connect.vht_capa_mask,
7762 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7763 sizeof(connect.vht_capa_mask));
7765 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7766 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7770 memcpy(&connect.vht_capa,
7771 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7772 sizeof(connect.vht_capa));
7775 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7776 if (!(rdev->wiphy.features &
7777 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7778 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7780 connect.flags |= ASSOC_REQ_USE_RRM;
7783 wdev_lock(dev->ieee80211_ptr);
7784 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7785 wdev_unlock(dev->ieee80211_ptr);
7791 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7794 struct net_device *dev = info->user_ptr[1];
7798 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7799 reason = WLAN_REASON_DEAUTH_LEAVING;
7801 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7806 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7807 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7810 wdev_lock(dev->ieee80211_ptr);
7811 ret = cfg80211_disconnect(rdev, dev, reason, true);
7812 wdev_unlock(dev->ieee80211_ptr);
7816 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7818 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7822 if (info->attrs[NL80211_ATTR_PID]) {
7823 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7825 net = get_net_ns_by_pid(pid);
7826 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7827 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
7829 net = get_net_ns_by_fd(fd);
7835 return PTR_ERR(net);
7839 /* check if anything to do */
7840 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7841 err = cfg80211_switch_netns(rdev, net);
7847 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7850 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7851 struct cfg80211_pmksa *pmksa) = NULL;
7852 struct net_device *dev = info->user_ptr[1];
7853 struct cfg80211_pmksa pmksa;
7855 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7857 if (!info->attrs[NL80211_ATTR_MAC])
7860 if (!info->attrs[NL80211_ATTR_PMKID])
7863 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7864 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7866 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7867 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7870 switch (info->genlhdr->cmd) {
7871 case NL80211_CMD_SET_PMKSA:
7872 rdev_ops = rdev->ops->set_pmksa;
7874 case NL80211_CMD_DEL_PMKSA:
7875 rdev_ops = rdev->ops->del_pmksa;
7885 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7888 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7891 struct net_device *dev = info->user_ptr[1];
7893 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7894 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7897 if (!rdev->ops->flush_pmksa)
7900 return rdev_flush_pmksa(rdev, dev);
7903 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7906 struct net_device *dev = info->user_ptr[1];
7907 u8 action_code, dialog_token;
7908 u32 peer_capability = 0;
7913 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7914 !rdev->ops->tdls_mgmt)
7917 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7918 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7919 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7920 !info->attrs[NL80211_ATTR_IE] ||
7921 !info->attrs[NL80211_ATTR_MAC])
7924 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7925 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7926 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7927 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7928 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
7929 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7931 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
7933 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7934 dialog_token, status_code, peer_capability,
7936 nla_data(info->attrs[NL80211_ATTR_IE]),
7937 nla_len(info->attrs[NL80211_ATTR_IE]));
7940 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7943 struct net_device *dev = info->user_ptr[1];
7944 enum nl80211_tdls_operation operation;
7947 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7948 !rdev->ops->tdls_oper)
7951 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7952 !info->attrs[NL80211_ATTR_MAC])
7955 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7956 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7958 return rdev_tdls_oper(rdev, dev, peer, operation);
7961 static int nl80211_remain_on_channel(struct sk_buff *skb,
7962 struct genl_info *info)
7964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7965 struct wireless_dev *wdev = info->user_ptr[1];
7966 struct cfg80211_chan_def chandef;
7967 struct sk_buff *msg;
7973 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7974 !info->attrs[NL80211_ATTR_DURATION])
7977 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7979 if (!rdev->ops->remain_on_channel ||
7980 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7984 * We should be on that channel for at least a minimum amount of
7985 * time (10ms) but no longer than the driver supports.
7987 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7988 duration > rdev->wiphy.max_remain_on_channel_duration)
7991 err = nl80211_parse_chandef(rdev, info, &chandef);
7995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7999 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8000 NL80211_CMD_REMAIN_ON_CHANNEL);
8006 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8012 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8013 goto nla_put_failure;
8015 genlmsg_end(msg, hdr);
8017 return genlmsg_reply(msg, info);
8026 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8027 struct genl_info *info)
8029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8030 struct wireless_dev *wdev = info->user_ptr[1];
8033 if (!info->attrs[NL80211_ATTR_COOKIE])
8036 if (!rdev->ops->cancel_remain_on_channel)
8039 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8041 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
8044 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8045 u8 *rates, u8 rates_len)
8050 for (i = 0; i < rates_len; i++) {
8051 int rate = (rates[i] & 0x7f) * 5;
8053 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8054 struct ieee80211_rate *srate =
8055 &sband->bitrates[ridx];
8056 if (rate == srate->bitrate) {
8061 if (ridx == sband->n_bitrates)
8062 return 0; /* rate not found */
8068 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8069 u8 *rates, u8 rates_len,
8070 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8074 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8076 for (i = 0; i < rates_len; i++) {
8079 ridx = rates[i] / 8;
8080 rbit = BIT(rates[i] % 8);
8082 /* check validity */
8083 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
8086 /* check availability */
8087 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8096 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8100 switch (vht_mcs_map) {
8101 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8103 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8106 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8109 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8119 static void vht_build_mcs_mask(u16 vht_mcs_map,
8120 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8124 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8125 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8130 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8131 struct nl80211_txrate_vht *txrate,
8132 u16 mcs[NL80211_VHT_NSS_MAX])
8134 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8135 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8138 if (!sband->vht_cap.vht_supported)
8141 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8143 /* Build vht_mcs_mask from VHT capabilities */
8144 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8146 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8147 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8148 mcs[i] = txrate->mcs[i];
8156 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
8157 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8158 .len = NL80211_MAX_SUPP_RATES },
8159 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8160 .len = NL80211_MAX_SUPP_HT_RATES },
8161 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
8162 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
8165 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8166 struct genl_info *info)
8168 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
8169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8170 struct cfg80211_bitrate_mask mask;
8172 struct net_device *dev = info->user_ptr[1];
8173 struct nlattr *tx_rates;
8174 struct ieee80211_supported_band *sband;
8177 if (!rdev->ops->set_bitrate_mask)
8180 memset(&mask, 0, sizeof(mask));
8181 /* Default to all rates enabled */
8182 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8183 sband = rdev->wiphy.bands[i];
8188 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
8189 memcpy(mask.control[i].ht_mcs,
8190 sband->ht_cap.mcs.rx_mask,
8191 sizeof(mask.control[i].ht_mcs));
8193 if (!sband->vht_cap.vht_supported)
8196 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8197 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
8200 /* if no rates are given set it back to the defaults */
8201 if (!info->attrs[NL80211_ATTR_TX_RATES])
8205 * The nested attribute uses enum nl80211_band as the index. This maps
8206 * directly to the enum ieee80211_band values used in cfg80211.
8208 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
8209 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
8210 enum ieee80211_band band = nla_type(tx_rates);
8213 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8215 sband = rdev->wiphy.bands[band];
8218 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8219 nla_len(tx_rates), nl80211_txattr_policy);
8222 if (tb[NL80211_TXRATE_LEGACY]) {
8223 mask.control[band].legacy = rateset_to_mask(
8225 nla_data(tb[NL80211_TXRATE_LEGACY]),
8226 nla_len(tb[NL80211_TXRATE_LEGACY]));
8227 if ((mask.control[band].legacy == 0) &&
8228 nla_len(tb[NL80211_TXRATE_LEGACY]))
8231 if (tb[NL80211_TXRATE_HT]) {
8232 if (!ht_rateset_to_mask(
8234 nla_data(tb[NL80211_TXRATE_HT]),
8235 nla_len(tb[NL80211_TXRATE_HT]),
8236 mask.control[band].ht_mcs))
8239 if (tb[NL80211_TXRATE_VHT]) {
8240 if (!vht_set_mcs_mask(
8242 nla_data(tb[NL80211_TXRATE_VHT]),
8243 mask.control[band].vht_mcs))
8246 if (tb[NL80211_TXRATE_GI]) {
8247 mask.control[band].gi =
8248 nla_get_u8(tb[NL80211_TXRATE_GI]);
8249 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8253 if (mask.control[band].legacy == 0) {
8254 /* don't allow empty legacy rates if HT or VHT
8255 * are not even supported.
8257 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8258 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8261 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8262 if (mask.control[band].ht_mcs[i])
8265 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8266 if (mask.control[band].vht_mcs[i])
8269 /* legacy and mcs rates may not be both empty */
8275 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8278 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8281 struct wireless_dev *wdev = info->user_ptr[1];
8282 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8284 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8287 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8288 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8290 switch (wdev->iftype) {
8291 case NL80211_IFTYPE_STATION:
8292 case NL80211_IFTYPE_ADHOC:
8293 case NL80211_IFTYPE_P2P_CLIENT:
8294 case NL80211_IFTYPE_AP:
8295 case NL80211_IFTYPE_AP_VLAN:
8296 case NL80211_IFTYPE_MESH_POINT:
8297 case NL80211_IFTYPE_P2P_GO:
8298 case NL80211_IFTYPE_P2P_DEVICE:
8304 /* not much point in registering if we can't reply */
8305 if (!rdev->ops->mgmt_tx)
8308 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8309 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8310 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8313 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8316 struct wireless_dev *wdev = info->user_ptr[1];
8317 struct cfg80211_chan_def chandef;
8321 struct sk_buff *msg = NULL;
8322 struct cfg80211_mgmt_tx_params params = {
8323 .dont_wait_for_ack =
8324 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8327 if (!info->attrs[NL80211_ATTR_FRAME])
8330 if (!rdev->ops->mgmt_tx)
8333 switch (wdev->iftype) {
8334 case NL80211_IFTYPE_P2P_DEVICE:
8335 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8337 case NL80211_IFTYPE_STATION:
8338 case NL80211_IFTYPE_ADHOC:
8339 case NL80211_IFTYPE_P2P_CLIENT:
8340 case NL80211_IFTYPE_AP:
8341 case NL80211_IFTYPE_AP_VLAN:
8342 case NL80211_IFTYPE_MESH_POINT:
8343 case NL80211_IFTYPE_P2P_GO:
8349 if (info->attrs[NL80211_ATTR_DURATION]) {
8350 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8352 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8355 * We should wait on the channel for at least a minimum amount
8356 * of time (10ms) but no longer than the driver supports.
8358 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8359 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8364 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8366 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8369 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8371 /* get the channel if any has been specified, otherwise pass NULL to
8372 * the driver. The latter will use the current one
8374 chandef.chan = NULL;
8375 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8376 err = nl80211_parse_chandef(rdev, info, &chandef);
8381 if (!chandef.chan && params.offchan)
8384 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8385 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8387 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8388 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8391 if (len % sizeof(u16))
8394 params.n_csa_offsets = len / sizeof(u16);
8395 params.csa_offsets =
8396 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8398 /* check that all the offsets fit the frame */
8399 for (i = 0; i < params.n_csa_offsets; i++) {
8400 if (params.csa_offsets[i] >= params.len)
8405 if (!params.dont_wait_for_ack) {
8406 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8410 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8418 params.chan = chandef.chan;
8419 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8424 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8425 goto nla_put_failure;
8427 genlmsg_end(msg, hdr);
8428 return genlmsg_reply(msg, info);
8440 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8443 struct wireless_dev *wdev = info->user_ptr[1];
8446 if (!info->attrs[NL80211_ATTR_COOKIE])
8449 if (!rdev->ops->mgmt_tx_cancel_wait)
8452 switch (wdev->iftype) {
8453 case NL80211_IFTYPE_STATION:
8454 case NL80211_IFTYPE_ADHOC:
8455 case NL80211_IFTYPE_P2P_CLIENT:
8456 case NL80211_IFTYPE_AP:
8457 case NL80211_IFTYPE_AP_VLAN:
8458 case NL80211_IFTYPE_P2P_GO:
8459 case NL80211_IFTYPE_P2P_DEVICE:
8465 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8467 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
8470 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8473 struct wireless_dev *wdev;
8474 struct net_device *dev = info->user_ptr[1];
8479 if (!info->attrs[NL80211_ATTR_PS_STATE])
8482 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8484 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8487 wdev = dev->ieee80211_ptr;
8489 if (!rdev->ops->set_power_mgmt)
8492 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8494 if (state == wdev->ps)
8497 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8503 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8506 enum nl80211_ps_state ps_state;
8507 struct wireless_dev *wdev;
8508 struct net_device *dev = info->user_ptr[1];
8509 struct sk_buff *msg;
8513 wdev = dev->ieee80211_ptr;
8515 if (!rdev->ops->set_power_mgmt)
8518 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8522 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8523 NL80211_CMD_GET_POWER_SAVE);
8530 ps_state = NL80211_PS_ENABLED;
8532 ps_state = NL80211_PS_DISABLED;
8534 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8535 goto nla_put_failure;
8537 genlmsg_end(msg, hdr);
8538 return genlmsg_reply(msg, info);
8547 static const struct nla_policy
8548 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8549 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8550 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8551 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8552 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8553 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8554 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8557 static int nl80211_set_cqm_txe(struct genl_info *info,
8558 u32 rate, u32 pkts, u32 intvl)
8560 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8561 struct net_device *dev = info->user_ptr[1];
8562 struct wireless_dev *wdev = dev->ieee80211_ptr;
8564 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8567 if (!rdev->ops->set_cqm_txe_config)
8570 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8571 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8574 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8577 static int nl80211_set_cqm_rssi(struct genl_info *info,
8578 s32 threshold, u32 hysteresis)
8580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8581 struct net_device *dev = info->user_ptr[1];
8582 struct wireless_dev *wdev = dev->ieee80211_ptr;
8587 /* disabling - hysteresis should also be zero then */
8591 if (!rdev->ops->set_cqm_rssi_config)
8594 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8595 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8598 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8601 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8603 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8607 cqm = info->attrs[NL80211_ATTR_CQM];
8611 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8612 nl80211_attr_cqm_policy);
8616 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8617 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8618 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8619 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8621 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8624 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8625 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8626 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8627 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8628 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8629 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8631 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8637 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8640 struct net_device *dev = info->user_ptr[1];
8641 struct ocb_setup setup = {};
8644 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8648 return cfg80211_join_ocb(rdev, dev, &setup);
8651 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8654 struct net_device *dev = info->user_ptr[1];
8656 return cfg80211_leave_ocb(rdev, dev);
8659 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8661 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8662 struct net_device *dev = info->user_ptr[1];
8663 struct mesh_config cfg;
8664 struct mesh_setup setup;
8667 /* start with default */
8668 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8669 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8671 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8672 /* and parse parameters if given */
8673 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8678 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8679 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8682 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8683 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8685 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8686 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8687 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8690 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8691 setup.beacon_interval =
8692 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8693 if (setup.beacon_interval < 10 ||
8694 setup.beacon_interval > 10000)
8698 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8700 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8701 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8705 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8706 /* parse additional setup parameters if given */
8707 err = nl80211_parse_mesh_setup(info, &setup);
8713 cfg.auto_open_plinks = false;
8715 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8716 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8720 /* cfg80211_join_mesh() will sort it out */
8721 setup.chandef.chan = NULL;
8724 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8725 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8727 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8728 struct ieee80211_supported_band *sband;
8730 if (!setup.chandef.chan)
8733 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8735 err = ieee80211_get_ratemask(sband, rates, n_rates,
8736 &setup.basic_rates);
8741 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8744 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8747 struct net_device *dev = info->user_ptr[1];
8749 return cfg80211_leave_mesh(rdev, dev);
8753 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8754 struct cfg80211_registered_device *rdev)
8756 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8757 struct nlattr *nl_pats, *nl_pat;
8760 if (!wowlan->n_patterns)
8763 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8767 for (i = 0; i < wowlan->n_patterns; i++) {
8768 nl_pat = nla_nest_start(msg, i + 1);
8771 pat_len = wowlan->patterns[i].pattern_len;
8772 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8773 wowlan->patterns[i].mask) ||
8774 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8775 wowlan->patterns[i].pattern) ||
8776 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8777 wowlan->patterns[i].pkt_offset))
8779 nla_nest_end(msg, nl_pat);
8781 nla_nest_end(msg, nl_pats);
8786 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8787 struct cfg80211_wowlan_tcp *tcp)
8789 struct nlattr *nl_tcp;
8794 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8798 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8799 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8800 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8801 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8802 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8803 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8804 tcp->payload_len, tcp->payload) ||
8805 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8806 tcp->data_interval) ||
8807 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8808 tcp->wake_len, tcp->wake_data) ||
8809 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8810 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8813 if (tcp->payload_seq.len &&
8814 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8815 sizeof(tcp->payload_seq), &tcp->payload_seq))
8818 if (tcp->payload_tok.len &&
8819 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8820 sizeof(tcp->payload_tok) + tcp->tokens_size,
8824 nla_nest_end(msg, nl_tcp);
8829 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8830 struct cfg80211_sched_scan_request *req)
8832 struct nlattr *nd, *freqs, *matches, *match;
8838 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8842 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
8845 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
8848 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8852 for (i = 0; i < req->n_channels; i++)
8853 nla_put_u32(msg, i, req->channels[i]->center_freq);
8855 nla_nest_end(msg, freqs);
8857 if (req->n_match_sets) {
8858 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
8859 for (i = 0; i < req->n_match_sets; i++) {
8860 match = nla_nest_start(msg, i);
8861 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
8862 req->match_sets[i].ssid.ssid_len,
8863 req->match_sets[i].ssid.ssid);
8864 nla_nest_end(msg, match);
8866 nla_nest_end(msg, matches);
8869 nla_nest_end(msg, nd);
8874 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8877 struct sk_buff *msg;
8879 u32 size = NLMSG_DEFAULT_SIZE;
8881 if (!rdev->wiphy.wowlan)
8884 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8885 /* adjust size to have room for all the data */
8886 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8887 rdev->wiphy.wowlan_config->tcp->payload_len +
8888 rdev->wiphy.wowlan_config->tcp->wake_len +
8889 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8892 msg = nlmsg_new(size, GFP_KERNEL);
8896 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8897 NL80211_CMD_GET_WOWLAN);
8899 goto nla_put_failure;
8901 if (rdev->wiphy.wowlan_config) {
8902 struct nlattr *nl_wowlan;
8904 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8906 goto nla_put_failure;
8908 if ((rdev->wiphy.wowlan_config->any &&
8909 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8910 (rdev->wiphy.wowlan_config->disconnect &&
8911 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8912 (rdev->wiphy.wowlan_config->magic_pkt &&
8913 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8914 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8915 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8916 (rdev->wiphy.wowlan_config->eap_identity_req &&
8917 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8918 (rdev->wiphy.wowlan_config->four_way_handshake &&
8919 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8920 (rdev->wiphy.wowlan_config->rfkill_release &&
8921 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8922 goto nla_put_failure;
8924 if (nl80211_send_wowlan_patterns(msg, rdev))
8925 goto nla_put_failure;
8927 if (nl80211_send_wowlan_tcp(msg,
8928 rdev->wiphy.wowlan_config->tcp))
8929 goto nla_put_failure;
8931 if (nl80211_send_wowlan_nd(
8933 rdev->wiphy.wowlan_config->nd_config))
8934 goto nla_put_failure;
8936 nla_nest_end(msg, nl_wowlan);
8939 genlmsg_end(msg, hdr);
8940 return genlmsg_reply(msg, info);
8947 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8948 struct nlattr *attr,
8949 struct cfg80211_wowlan *trig)
8951 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8952 struct cfg80211_wowlan_tcp *cfg;
8953 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8954 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8956 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8959 if (!rdev->wiphy.wowlan->tcp)
8962 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8963 nla_data(attr), nla_len(attr),
8964 nl80211_wowlan_tcp_policy);
8968 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8969 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8970 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8971 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8972 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8973 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8974 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8975 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8978 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8979 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8982 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8983 rdev->wiphy.wowlan->tcp->data_interval_max ||
8984 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8987 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8988 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8991 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8992 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8995 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8996 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8998 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8999 tokens_size = tokln - sizeof(*tok);
9001 if (!tok->len || tokens_size % tok->len)
9003 if (!rdev->wiphy.wowlan->tcp->tok)
9005 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9007 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9009 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9011 if (tok->offset + tok->len > data_size)
9015 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9016 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9017 if (!rdev->wiphy.wowlan->tcp->seq)
9019 if (seq->len == 0 || seq->len > 4)
9021 if (seq->len + seq->offset > data_size)
9025 size = sizeof(*cfg);
9027 size += wake_size + wake_mask_size;
9028 size += tokens_size;
9030 cfg = kzalloc(size, GFP_KERNEL);
9033 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9034 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9035 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9037 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9038 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9042 /* allocate a socket and port for it and use it */
9043 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9044 IPPROTO_TCP, &cfg->sock, 1);
9049 if (inet_csk_get_port(cfg->sock->sk, port)) {
9050 sock_release(cfg->sock);
9054 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9060 cfg->src_port = port;
9063 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9064 cfg->payload_len = data_size;
9065 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9066 memcpy((void *)cfg->payload,
9067 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9070 cfg->payload_seq = *seq;
9071 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9072 cfg->wake_len = wake_size;
9073 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9074 memcpy((void *)cfg->wake_data,
9075 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9077 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9078 data_size + wake_size;
9079 memcpy((void *)cfg->wake_mask,
9080 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9083 cfg->tokens_size = tokens_size;
9084 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9092 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9093 const struct wiphy_wowlan_support *wowlan,
9094 struct nlattr *attr,
9095 struct cfg80211_wowlan *trig)
9100 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9104 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9109 err = nla_parse(tb, NL80211_ATTR_MAX,
9110 nla_data(attr), nla_len(attr),
9115 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9116 err = PTR_ERR_OR_ZERO(trig->nd_config);
9118 trig->nd_config = NULL;
9125 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9128 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9129 struct cfg80211_wowlan new_triggers = {};
9130 struct cfg80211_wowlan *ntrig;
9131 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9133 bool prev_enabled = rdev->wiphy.wowlan_config;
9134 bool regular = false;
9139 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9140 cfg80211_rdev_free_wowlan(rdev);
9141 rdev->wiphy.wowlan_config = NULL;
9145 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9146 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9147 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9148 nl80211_wowlan_policy);
9152 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9153 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9155 new_triggers.any = true;
9158 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9159 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9161 new_triggers.disconnect = true;
9165 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9166 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9168 new_triggers.magic_pkt = true;
9172 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9175 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9176 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9178 new_triggers.gtk_rekey_failure = true;
9182 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9183 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9185 new_triggers.eap_identity_req = true;
9189 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9190 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9192 new_triggers.four_way_handshake = true;
9196 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9197 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9199 new_triggers.rfkill_release = true;
9203 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9206 int rem, pat_len, mask_len, pkt_offset;
9207 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9211 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9214 if (n_patterns > wowlan->n_patterns)
9217 new_triggers.patterns = kcalloc(n_patterns,
9218 sizeof(new_triggers.patterns[0]),
9220 if (!new_triggers.patterns)
9223 new_triggers.n_patterns = n_patterns;
9226 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9230 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9231 nla_len(pat), NULL);
9233 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9234 !pat_tb[NL80211_PKTPAT_PATTERN])
9236 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9237 mask_len = DIV_ROUND_UP(pat_len, 8);
9238 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9240 if (pat_len > wowlan->pattern_max_len ||
9241 pat_len < wowlan->pattern_min_len)
9244 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9247 pkt_offset = nla_get_u32(
9248 pat_tb[NL80211_PKTPAT_OFFSET]);
9249 if (pkt_offset > wowlan->max_pkt_offset)
9251 new_triggers.patterns[i].pkt_offset = pkt_offset;
9253 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9258 new_triggers.patterns[i].mask = mask_pat;
9259 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9261 mask_pat += mask_len;
9262 new_triggers.patterns[i].pattern = mask_pat;
9263 new_triggers.patterns[i].pattern_len = pat_len;
9265 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9271 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9273 err = nl80211_parse_wowlan_tcp(
9274 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9280 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9282 err = nl80211_parse_wowlan_nd(
9283 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9289 /* The 'any' trigger means the device continues operating more or less
9290 * as in its normal operation mode and wakes up the host on most of the
9291 * normal interrupts (like packet RX, ...)
9292 * It therefore makes little sense to combine with the more constrained
9293 * wakeup trigger modes.
9295 if (new_triggers.any && regular) {
9300 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9305 cfg80211_rdev_free_wowlan(rdev);
9306 rdev->wiphy.wowlan_config = ntrig;
9309 if (rdev->ops->set_wakeup &&
9310 prev_enabled != !!rdev->wiphy.wowlan_config)
9311 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9315 for (i = 0; i < new_triggers.n_patterns; i++)
9316 kfree(new_triggers.patterns[i].mask);
9317 kfree(new_triggers.patterns);
9318 if (new_triggers.tcp && new_triggers.tcp->sock)
9319 sock_release(new_triggers.tcp->sock);
9320 kfree(new_triggers.tcp);
9325 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9326 struct cfg80211_registered_device *rdev)
9328 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9330 struct cfg80211_coalesce_rules *rule;
9332 if (!rdev->coalesce->n_rules)
9335 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9339 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9340 nl_rule = nla_nest_start(msg, i + 1);
9344 rule = &rdev->coalesce->rules[i];
9345 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9349 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9353 nl_pats = nla_nest_start(msg,
9354 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9358 for (j = 0; j < rule->n_patterns; j++) {
9359 nl_pat = nla_nest_start(msg, j + 1);
9362 pat_len = rule->patterns[j].pattern_len;
9363 if (nla_put(msg, NL80211_PKTPAT_MASK,
9364 DIV_ROUND_UP(pat_len, 8),
9365 rule->patterns[j].mask) ||
9366 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9367 rule->patterns[j].pattern) ||
9368 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9369 rule->patterns[j].pkt_offset))
9371 nla_nest_end(msg, nl_pat);
9373 nla_nest_end(msg, nl_pats);
9374 nla_nest_end(msg, nl_rule);
9376 nla_nest_end(msg, nl_rules);
9381 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9383 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9384 struct sk_buff *msg;
9387 if (!rdev->wiphy.coalesce)
9390 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9394 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9395 NL80211_CMD_GET_COALESCE);
9397 goto nla_put_failure;
9399 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9400 goto nla_put_failure;
9402 genlmsg_end(msg, hdr);
9403 return genlmsg_reply(msg, info);
9410 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9412 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9414 struct cfg80211_coalesce_rules *rule;
9419 for (i = 0; i < coalesce->n_rules; i++) {
9420 rule = &coalesce->rules[i];
9421 for (j = 0; j < rule->n_patterns; j++)
9422 kfree(rule->patterns[j].mask);
9423 kfree(rule->patterns);
9425 kfree(coalesce->rules);
9427 rdev->coalesce = NULL;
9430 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9431 struct nlattr *rule,
9432 struct cfg80211_coalesce_rules *new_rule)
9435 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9436 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9437 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9438 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9440 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9441 nla_len(rule), nl80211_coalesce_policy);
9445 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9447 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9448 if (new_rule->delay > coalesce->max_delay)
9451 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9452 new_rule->condition =
9453 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9454 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9455 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9458 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9461 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9464 if (n_patterns > coalesce->n_patterns)
9467 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9469 if (!new_rule->patterns)
9472 new_rule->n_patterns = n_patterns;
9475 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9479 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9480 nla_len(pat), NULL);
9481 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9482 !pat_tb[NL80211_PKTPAT_PATTERN])
9484 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9485 mask_len = DIV_ROUND_UP(pat_len, 8);
9486 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9488 if (pat_len > coalesce->pattern_max_len ||
9489 pat_len < coalesce->pattern_min_len)
9492 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9495 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9496 if (pkt_offset > coalesce->max_pkt_offset)
9498 new_rule->patterns[i].pkt_offset = pkt_offset;
9500 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9504 new_rule->patterns[i].mask = mask_pat;
9505 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9508 mask_pat += mask_len;
9509 new_rule->patterns[i].pattern = mask_pat;
9510 new_rule->patterns[i].pattern_len = pat_len;
9511 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9519 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9522 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9523 struct cfg80211_coalesce new_coalesce = {};
9524 struct cfg80211_coalesce *n_coalesce;
9525 int err, rem_rule, n_rules = 0, i, j;
9526 struct nlattr *rule;
9527 struct cfg80211_coalesce_rules *tmp_rule;
9529 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9532 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9533 cfg80211_rdev_free_coalesce(rdev);
9534 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9538 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9541 if (n_rules > coalesce->n_rules)
9544 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9546 if (!new_coalesce.rules)
9549 new_coalesce.n_rules = n_rules;
9552 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9554 err = nl80211_parse_coalesce_rule(rdev, rule,
9555 &new_coalesce.rules[i]);
9562 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9566 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9571 cfg80211_rdev_free_coalesce(rdev);
9572 rdev->coalesce = n_coalesce;
9576 for (i = 0; i < new_coalesce.n_rules; i++) {
9577 tmp_rule = &new_coalesce.rules[i];
9578 for (j = 0; j < tmp_rule->n_patterns; j++)
9579 kfree(tmp_rule->patterns[j].mask);
9580 kfree(tmp_rule->patterns);
9582 kfree(new_coalesce.rules);
9587 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9590 struct net_device *dev = info->user_ptr[1];
9591 struct wireless_dev *wdev = dev->ieee80211_ptr;
9592 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9593 struct cfg80211_gtk_rekey_data rekey_data;
9596 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9599 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9600 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9601 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9602 nl80211_rekey_policy);
9606 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9608 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9610 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9613 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9614 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9615 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9618 if (!wdev->current_bss) {
9623 if (!rdev->ops->set_rekey_data) {
9628 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9634 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9635 struct genl_info *info)
9637 struct net_device *dev = info->user_ptr[1];
9638 struct wireless_dev *wdev = dev->ieee80211_ptr;
9640 if (wdev->iftype != NL80211_IFTYPE_AP &&
9641 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9644 if (wdev->ap_unexpected_nlportid)
9647 wdev->ap_unexpected_nlportid = info->snd_portid;
9651 static int nl80211_probe_client(struct sk_buff *skb,
9652 struct genl_info *info)
9654 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9655 struct net_device *dev = info->user_ptr[1];
9656 struct wireless_dev *wdev = dev->ieee80211_ptr;
9657 struct sk_buff *msg;
9663 if (wdev->iftype != NL80211_IFTYPE_AP &&
9664 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9667 if (!info->attrs[NL80211_ATTR_MAC])
9670 if (!rdev->ops->probe_client)
9673 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9677 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9678 NL80211_CMD_PROBE_CLIENT);
9684 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9686 err = rdev_probe_client(rdev, dev, addr, &cookie);
9690 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9691 goto nla_put_failure;
9693 genlmsg_end(msg, hdr);
9695 return genlmsg_reply(msg, info);
9704 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9707 struct cfg80211_beacon_registration *reg, *nreg;
9710 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9713 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9717 /* First, check if already registered. */
9718 spin_lock_bh(&rdev->beacon_registrations_lock);
9719 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9720 if (reg->nlportid == info->snd_portid) {
9725 /* Add it to the list */
9726 nreg->nlportid = info->snd_portid;
9727 list_add(&nreg->list, &rdev->beacon_registrations);
9729 spin_unlock_bh(&rdev->beacon_registrations_lock);
9733 spin_unlock_bh(&rdev->beacon_registrations_lock);
9738 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9741 struct wireless_dev *wdev = info->user_ptr[1];
9744 if (!rdev->ops->start_p2p_device)
9747 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9750 if (wdev->p2p_started)
9753 if (rfkill_blocked(rdev->rfkill))
9756 err = rdev_start_p2p_device(rdev, wdev);
9760 wdev->p2p_started = true;
9766 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9769 struct wireless_dev *wdev = info->user_ptr[1];
9771 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9774 if (!rdev->ops->stop_p2p_device)
9777 cfg80211_stop_p2p_device(rdev, wdev);
9782 static int nl80211_get_protocol_features(struct sk_buff *skb,
9783 struct genl_info *info)
9786 struct sk_buff *msg;
9788 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9792 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9793 NL80211_CMD_GET_PROTOCOL_FEATURES);
9795 goto nla_put_failure;
9797 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9798 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9799 goto nla_put_failure;
9801 genlmsg_end(msg, hdr);
9802 return genlmsg_reply(msg, info);
9809 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9812 struct cfg80211_update_ft_ies_params ft_params;
9813 struct net_device *dev = info->user_ptr[1];
9815 if (!rdev->ops->update_ft_ies)
9818 if (!info->attrs[NL80211_ATTR_MDID] ||
9819 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9822 memset(&ft_params, 0, sizeof(ft_params));
9823 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9824 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9825 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9827 return rdev_update_ft_ies(rdev, dev, &ft_params);
9830 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9831 struct genl_info *info)
9833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9834 struct wireless_dev *wdev = info->user_ptr[1];
9835 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9839 if (!rdev->ops->crit_proto_start)
9842 if (WARN_ON(!rdev->ops->crit_proto_stop))
9845 if (rdev->crit_proto_nlportid)
9848 /* determine protocol if provided */
9849 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9850 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9852 if (proto >= NUM_NL80211_CRIT_PROTO)
9855 /* timeout must be provided */
9856 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9860 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9862 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9865 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9867 rdev->crit_proto_nlportid = info->snd_portid;
9872 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9873 struct genl_info *info)
9875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9876 struct wireless_dev *wdev = info->user_ptr[1];
9878 if (!rdev->ops->crit_proto_stop)
9881 if (rdev->crit_proto_nlportid) {
9882 rdev->crit_proto_nlportid = 0;
9883 rdev_crit_proto_stop(rdev, wdev);
9888 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9891 struct wireless_dev *wdev =
9892 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9896 if (!rdev->wiphy.vendor_commands)
9900 err = PTR_ERR(wdev);
9904 } else if (wdev->wiphy != &rdev->wiphy) {
9908 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9909 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9912 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9913 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9914 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9915 const struct wiphy_vendor_command *vcmd;
9919 vcmd = &rdev->wiphy.vendor_commands[i];
9921 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9924 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9925 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9928 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9932 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9934 !netif_running(wdev->netdev))
9936 if (!wdev->netdev && !wdev->p2p_started)
9943 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9944 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9945 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9948 rdev->cur_cmd_info = info;
9949 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9951 rdev->cur_cmd_info = NULL;
9958 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9959 enum nl80211_commands cmd,
9960 enum nl80211_attrs attr,
9963 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9965 if (WARN_ON(!rdev->cur_cmd_info))
9968 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
9969 rdev->cur_cmd_info->snd_portid,
9970 rdev->cur_cmd_info->snd_seq,
9971 cmd, attr, NULL, GFP_KERNEL);
9973 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9975 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9977 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9978 void *hdr = ((void **)skb->cb)[1];
9979 struct nlattr *data = ((void **)skb->cb)[2];
9981 /* clear CB data for netlink core to own from now on */
9982 memset(skb->cb, 0, sizeof(skb->cb));
9984 if (WARN_ON(!rdev->cur_cmd_info)) {
9989 nla_nest_end(skb, data);
9990 genlmsg_end(skb, hdr);
9991 return genlmsg_reply(skb, rdev->cur_cmd_info);
9993 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9996 static int nl80211_set_qos_map(struct sk_buff *skb,
9997 struct genl_info *info)
9999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10000 struct cfg80211_qos_map *qos_map = NULL;
10001 struct net_device *dev = info->user_ptr[1];
10002 u8 *pos, len, num_des, des_len, des;
10005 if (!rdev->ops->set_qos_map)
10006 return -EOPNOTSUPP;
10008 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10009 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10010 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10012 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10013 len > IEEE80211_QOS_MAP_LEN_MAX)
10016 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10020 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10022 des_len = num_des *
10023 sizeof(struct cfg80211_dscp_exception);
10024 memcpy(qos_map->dscp_exception, pos, des_len);
10025 qos_map->num_des = num_des;
10026 for (des = 0; des < num_des; des++) {
10027 if (qos_map->dscp_exception[des].up > 7) {
10034 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10037 wdev_lock(dev->ieee80211_ptr);
10038 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10040 ret = rdev_set_qos_map(rdev, dev, qos_map);
10041 wdev_unlock(dev->ieee80211_ptr);
10047 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10050 struct net_device *dev = info->user_ptr[1];
10051 struct wireless_dev *wdev = dev->ieee80211_ptr;
10054 u16 admitted_time = 0;
10057 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
10058 return -EOPNOTSUPP;
10060 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10061 !info->attrs[NL80211_ATTR_USER_PRIO])
10064 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10065 if (tsid >= IEEE80211_NUM_TIDS)
10068 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10069 if (up >= IEEE80211_NUM_UPS)
10072 /* WMM uses TIDs 0-7 even for TSPEC */
10073 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
10074 /* TODO: handle 802.11 TSPEC/admission control
10075 * need more attributes for that (e.g. BA session requirement);
10076 * change the WMM adminssion test above to allow both then
10081 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10083 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10085 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10086 if (!admitted_time)
10091 switch (wdev->iftype) {
10092 case NL80211_IFTYPE_STATION:
10093 case NL80211_IFTYPE_P2P_CLIENT:
10094 if (wdev->current_bss)
10103 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10110 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10113 struct net_device *dev = info->user_ptr[1];
10114 struct wireless_dev *wdev = dev->ieee80211_ptr;
10119 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10122 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10123 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10126 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10132 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10133 struct genl_info *info)
10135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10136 struct net_device *dev = info->user_ptr[1];
10137 struct wireless_dev *wdev = dev->ieee80211_ptr;
10138 struct cfg80211_chan_def chandef = {};
10143 if (!rdev->ops->tdls_channel_switch ||
10144 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10145 return -EOPNOTSUPP;
10147 switch (dev->ieee80211_ptr->iftype) {
10148 case NL80211_IFTYPE_STATION:
10149 case NL80211_IFTYPE_P2P_CLIENT:
10152 return -EOPNOTSUPP;
10155 if (!info->attrs[NL80211_ATTR_MAC] ||
10156 !info->attrs[NL80211_ATTR_OPER_CLASS])
10159 err = nl80211_parse_chandef(rdev, info, &chandef);
10164 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10165 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10166 * specification is not defined for them.
10168 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10169 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10170 chandef.width != NL80211_CHAN_WIDTH_20)
10173 /* we will be active on the TDLS link */
10174 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10178 /* don't allow switching to DFS channels */
10179 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10182 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10183 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10186 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10192 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10193 struct genl_info *info)
10195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10196 struct net_device *dev = info->user_ptr[1];
10197 struct wireless_dev *wdev = dev->ieee80211_ptr;
10200 if (!rdev->ops->tdls_channel_switch ||
10201 !rdev->ops->tdls_cancel_channel_switch ||
10202 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10203 return -EOPNOTSUPP;
10205 switch (dev->ieee80211_ptr->iftype) {
10206 case NL80211_IFTYPE_STATION:
10207 case NL80211_IFTYPE_P2P_CLIENT:
10210 return -EOPNOTSUPP;
10213 if (!info->attrs[NL80211_ATTR_MAC])
10216 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10219 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10225 #define NL80211_FLAG_NEED_WIPHY 0x01
10226 #define NL80211_FLAG_NEED_NETDEV 0x02
10227 #define NL80211_FLAG_NEED_RTNL 0x04
10228 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10229 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10230 NL80211_FLAG_CHECK_NETDEV_UP)
10231 #define NL80211_FLAG_NEED_WDEV 0x10
10232 /* If a netdev is associated, it must be UP, P2P must be started */
10233 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10234 NL80211_FLAG_CHECK_NETDEV_UP)
10235 #define NL80211_FLAG_CLEAR_SKB 0x20
10237 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
10238 struct genl_info *info)
10240 struct cfg80211_registered_device *rdev;
10241 struct wireless_dev *wdev;
10242 struct net_device *dev;
10243 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10248 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
10249 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
10250 if (IS_ERR(rdev)) {
10253 return PTR_ERR(rdev);
10255 info->user_ptr[0] = rdev;
10256 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10257 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10260 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10262 if (IS_ERR(wdev)) {
10265 return PTR_ERR(wdev);
10268 dev = wdev->netdev;
10269 rdev = wiphy_to_rdev(wdev->wiphy);
10271 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10278 info->user_ptr[1] = dev;
10280 info->user_ptr[1] = wdev;
10284 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10285 !netif_running(dev)) {
10292 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10293 if (!wdev->p2p_started) {
10300 info->user_ptr[0] = rdev;
10306 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
10307 struct genl_info *info)
10309 if (info->user_ptr[1]) {
10310 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10311 struct wireless_dev *wdev = info->user_ptr[1];
10314 dev_put(wdev->netdev);
10316 dev_put(info->user_ptr[1]);
10320 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10323 /* If needed, clear the netlink message payload from the SKB
10324 * as it might contain key data that shouldn't stick around on
10325 * the heap after the SKB is freed. The netlink message header
10326 * is still needed for further processing, so leave it intact.
10328 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10329 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10331 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10335 static const struct genl_ops nl80211_ops[] = {
10337 .cmd = NL80211_CMD_GET_WIPHY,
10338 .doit = nl80211_get_wiphy,
10339 .dumpit = nl80211_dump_wiphy,
10340 .done = nl80211_dump_wiphy_done,
10341 .policy = nl80211_policy,
10342 /* can be retrieved by unprivileged users */
10343 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10344 NL80211_FLAG_NEED_RTNL,
10347 .cmd = NL80211_CMD_SET_WIPHY,
10348 .doit = nl80211_set_wiphy,
10349 .policy = nl80211_policy,
10350 .flags = GENL_ADMIN_PERM,
10351 .internal_flags = NL80211_FLAG_NEED_RTNL,
10354 .cmd = NL80211_CMD_GET_INTERFACE,
10355 .doit = nl80211_get_interface,
10356 .dumpit = nl80211_dump_interface,
10357 .policy = nl80211_policy,
10358 /* can be retrieved by unprivileged users */
10359 .internal_flags = NL80211_FLAG_NEED_WDEV |
10360 NL80211_FLAG_NEED_RTNL,
10363 .cmd = NL80211_CMD_SET_INTERFACE,
10364 .doit = nl80211_set_interface,
10365 .policy = nl80211_policy,
10366 .flags = GENL_ADMIN_PERM,
10367 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10368 NL80211_FLAG_NEED_RTNL,
10371 .cmd = NL80211_CMD_NEW_INTERFACE,
10372 .doit = nl80211_new_interface,
10373 .policy = nl80211_policy,
10374 .flags = GENL_ADMIN_PERM,
10375 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10376 NL80211_FLAG_NEED_RTNL,
10379 .cmd = NL80211_CMD_DEL_INTERFACE,
10380 .doit = nl80211_del_interface,
10381 .policy = nl80211_policy,
10382 .flags = GENL_ADMIN_PERM,
10383 .internal_flags = NL80211_FLAG_NEED_WDEV |
10384 NL80211_FLAG_NEED_RTNL,
10387 .cmd = NL80211_CMD_GET_KEY,
10388 .doit = nl80211_get_key,
10389 .policy = nl80211_policy,
10390 .flags = GENL_ADMIN_PERM,
10391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10392 NL80211_FLAG_NEED_RTNL,
10395 .cmd = NL80211_CMD_SET_KEY,
10396 .doit = nl80211_set_key,
10397 .policy = nl80211_policy,
10398 .flags = GENL_ADMIN_PERM,
10399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10400 NL80211_FLAG_NEED_RTNL |
10401 NL80211_FLAG_CLEAR_SKB,
10404 .cmd = NL80211_CMD_NEW_KEY,
10405 .doit = nl80211_new_key,
10406 .policy = nl80211_policy,
10407 .flags = GENL_ADMIN_PERM,
10408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10409 NL80211_FLAG_NEED_RTNL |
10410 NL80211_FLAG_CLEAR_SKB,
10413 .cmd = NL80211_CMD_DEL_KEY,
10414 .doit = nl80211_del_key,
10415 .policy = nl80211_policy,
10416 .flags = GENL_ADMIN_PERM,
10417 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10418 NL80211_FLAG_NEED_RTNL,
10421 .cmd = NL80211_CMD_SET_BEACON,
10422 .policy = nl80211_policy,
10423 .flags = GENL_ADMIN_PERM,
10424 .doit = nl80211_set_beacon,
10425 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10426 NL80211_FLAG_NEED_RTNL,
10429 .cmd = NL80211_CMD_START_AP,
10430 .policy = nl80211_policy,
10431 .flags = GENL_ADMIN_PERM,
10432 .doit = nl80211_start_ap,
10433 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10434 NL80211_FLAG_NEED_RTNL,
10437 .cmd = NL80211_CMD_STOP_AP,
10438 .policy = nl80211_policy,
10439 .flags = GENL_ADMIN_PERM,
10440 .doit = nl80211_stop_ap,
10441 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10442 NL80211_FLAG_NEED_RTNL,
10445 .cmd = NL80211_CMD_GET_STATION,
10446 .doit = nl80211_get_station,
10447 .dumpit = nl80211_dump_station,
10448 .policy = nl80211_policy,
10449 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10450 NL80211_FLAG_NEED_RTNL,
10453 .cmd = NL80211_CMD_SET_STATION,
10454 .doit = nl80211_set_station,
10455 .policy = nl80211_policy,
10456 .flags = GENL_ADMIN_PERM,
10457 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10458 NL80211_FLAG_NEED_RTNL,
10461 .cmd = NL80211_CMD_NEW_STATION,
10462 .doit = nl80211_new_station,
10463 .policy = nl80211_policy,
10464 .flags = GENL_ADMIN_PERM,
10465 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10466 NL80211_FLAG_NEED_RTNL,
10469 .cmd = NL80211_CMD_DEL_STATION,
10470 .doit = nl80211_del_station,
10471 .policy = nl80211_policy,
10472 .flags = GENL_ADMIN_PERM,
10473 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10474 NL80211_FLAG_NEED_RTNL,
10477 .cmd = NL80211_CMD_GET_MPATH,
10478 .doit = nl80211_get_mpath,
10479 .dumpit = nl80211_dump_mpath,
10480 .policy = nl80211_policy,
10481 .flags = GENL_ADMIN_PERM,
10482 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10483 NL80211_FLAG_NEED_RTNL,
10486 .cmd = NL80211_CMD_GET_MPP,
10487 .doit = nl80211_get_mpp,
10488 .dumpit = nl80211_dump_mpp,
10489 .policy = nl80211_policy,
10490 .flags = GENL_ADMIN_PERM,
10491 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10492 NL80211_FLAG_NEED_RTNL,
10495 .cmd = NL80211_CMD_SET_MPATH,
10496 .doit = nl80211_set_mpath,
10497 .policy = nl80211_policy,
10498 .flags = GENL_ADMIN_PERM,
10499 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10500 NL80211_FLAG_NEED_RTNL,
10503 .cmd = NL80211_CMD_NEW_MPATH,
10504 .doit = nl80211_new_mpath,
10505 .policy = nl80211_policy,
10506 .flags = GENL_ADMIN_PERM,
10507 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10508 NL80211_FLAG_NEED_RTNL,
10511 .cmd = NL80211_CMD_DEL_MPATH,
10512 .doit = nl80211_del_mpath,
10513 .policy = nl80211_policy,
10514 .flags = GENL_ADMIN_PERM,
10515 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10516 NL80211_FLAG_NEED_RTNL,
10519 .cmd = NL80211_CMD_SET_BSS,
10520 .doit = nl80211_set_bss,
10521 .policy = nl80211_policy,
10522 .flags = GENL_ADMIN_PERM,
10523 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10524 NL80211_FLAG_NEED_RTNL,
10527 .cmd = NL80211_CMD_GET_REG,
10528 .doit = nl80211_get_reg_do,
10529 .dumpit = nl80211_get_reg_dump,
10530 .policy = nl80211_policy,
10531 .internal_flags = NL80211_FLAG_NEED_RTNL,
10532 /* can be retrieved by unprivileged users */
10535 .cmd = NL80211_CMD_SET_REG,
10536 .doit = nl80211_set_reg,
10537 .policy = nl80211_policy,
10538 .flags = GENL_ADMIN_PERM,
10539 .internal_flags = NL80211_FLAG_NEED_RTNL,
10542 .cmd = NL80211_CMD_REQ_SET_REG,
10543 .doit = nl80211_req_set_reg,
10544 .policy = nl80211_policy,
10545 .flags = GENL_ADMIN_PERM,
10548 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10549 .doit = nl80211_get_mesh_config,
10550 .policy = nl80211_policy,
10551 /* can be retrieved by unprivileged users */
10552 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10553 NL80211_FLAG_NEED_RTNL,
10556 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10557 .doit = nl80211_update_mesh_config,
10558 .policy = nl80211_policy,
10559 .flags = GENL_ADMIN_PERM,
10560 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10561 NL80211_FLAG_NEED_RTNL,
10564 .cmd = NL80211_CMD_TRIGGER_SCAN,
10565 .doit = nl80211_trigger_scan,
10566 .policy = nl80211_policy,
10567 .flags = GENL_ADMIN_PERM,
10568 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10569 NL80211_FLAG_NEED_RTNL,
10572 .cmd = NL80211_CMD_GET_SCAN,
10573 .policy = nl80211_policy,
10574 .dumpit = nl80211_dump_scan,
10577 .cmd = NL80211_CMD_START_SCHED_SCAN,
10578 .doit = nl80211_start_sched_scan,
10579 .policy = nl80211_policy,
10580 .flags = GENL_ADMIN_PERM,
10581 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10582 NL80211_FLAG_NEED_RTNL,
10585 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10586 .doit = nl80211_stop_sched_scan,
10587 .policy = nl80211_policy,
10588 .flags = GENL_ADMIN_PERM,
10589 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10590 NL80211_FLAG_NEED_RTNL,
10593 .cmd = NL80211_CMD_AUTHENTICATE,
10594 .doit = nl80211_authenticate,
10595 .policy = nl80211_policy,
10596 .flags = GENL_ADMIN_PERM,
10597 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10598 NL80211_FLAG_NEED_RTNL |
10599 NL80211_FLAG_CLEAR_SKB,
10602 .cmd = NL80211_CMD_ASSOCIATE,
10603 .doit = nl80211_associate,
10604 .policy = nl80211_policy,
10605 .flags = GENL_ADMIN_PERM,
10606 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10607 NL80211_FLAG_NEED_RTNL,
10610 .cmd = NL80211_CMD_DEAUTHENTICATE,
10611 .doit = nl80211_deauthenticate,
10612 .policy = nl80211_policy,
10613 .flags = GENL_ADMIN_PERM,
10614 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10615 NL80211_FLAG_NEED_RTNL,
10618 .cmd = NL80211_CMD_DISASSOCIATE,
10619 .doit = nl80211_disassociate,
10620 .policy = nl80211_policy,
10621 .flags = GENL_ADMIN_PERM,
10622 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10623 NL80211_FLAG_NEED_RTNL,
10626 .cmd = NL80211_CMD_JOIN_IBSS,
10627 .doit = nl80211_join_ibss,
10628 .policy = nl80211_policy,
10629 .flags = GENL_ADMIN_PERM,
10630 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10631 NL80211_FLAG_NEED_RTNL,
10634 .cmd = NL80211_CMD_LEAVE_IBSS,
10635 .doit = nl80211_leave_ibss,
10636 .policy = nl80211_policy,
10637 .flags = GENL_ADMIN_PERM,
10638 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10639 NL80211_FLAG_NEED_RTNL,
10641 #ifdef CONFIG_NL80211_TESTMODE
10643 .cmd = NL80211_CMD_TESTMODE,
10644 .doit = nl80211_testmode_do,
10645 .dumpit = nl80211_testmode_dump,
10646 .policy = nl80211_policy,
10647 .flags = GENL_ADMIN_PERM,
10648 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10649 NL80211_FLAG_NEED_RTNL,
10653 .cmd = NL80211_CMD_CONNECT,
10654 .doit = nl80211_connect,
10655 .policy = nl80211_policy,
10656 .flags = GENL_ADMIN_PERM,
10657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10658 NL80211_FLAG_NEED_RTNL,
10661 .cmd = NL80211_CMD_DISCONNECT,
10662 .doit = nl80211_disconnect,
10663 .policy = nl80211_policy,
10664 .flags = GENL_ADMIN_PERM,
10665 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10666 NL80211_FLAG_NEED_RTNL,
10669 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10670 .doit = nl80211_wiphy_netns,
10671 .policy = nl80211_policy,
10672 .flags = GENL_ADMIN_PERM,
10673 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10674 NL80211_FLAG_NEED_RTNL,
10677 .cmd = NL80211_CMD_GET_SURVEY,
10678 .policy = nl80211_policy,
10679 .dumpit = nl80211_dump_survey,
10682 .cmd = NL80211_CMD_SET_PMKSA,
10683 .doit = nl80211_setdel_pmksa,
10684 .policy = nl80211_policy,
10685 .flags = GENL_ADMIN_PERM,
10686 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10687 NL80211_FLAG_NEED_RTNL,
10690 .cmd = NL80211_CMD_DEL_PMKSA,
10691 .doit = nl80211_setdel_pmksa,
10692 .policy = nl80211_policy,
10693 .flags = GENL_ADMIN_PERM,
10694 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10695 NL80211_FLAG_NEED_RTNL,
10698 .cmd = NL80211_CMD_FLUSH_PMKSA,
10699 .doit = nl80211_flush_pmksa,
10700 .policy = nl80211_policy,
10701 .flags = GENL_ADMIN_PERM,
10702 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10703 NL80211_FLAG_NEED_RTNL,
10706 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10707 .doit = nl80211_remain_on_channel,
10708 .policy = nl80211_policy,
10709 .flags = GENL_ADMIN_PERM,
10710 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10711 NL80211_FLAG_NEED_RTNL,
10714 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10715 .doit = nl80211_cancel_remain_on_channel,
10716 .policy = nl80211_policy,
10717 .flags = GENL_ADMIN_PERM,
10718 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10719 NL80211_FLAG_NEED_RTNL,
10722 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10723 .doit = nl80211_set_tx_bitrate_mask,
10724 .policy = nl80211_policy,
10725 .flags = GENL_ADMIN_PERM,
10726 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10727 NL80211_FLAG_NEED_RTNL,
10730 .cmd = NL80211_CMD_REGISTER_FRAME,
10731 .doit = nl80211_register_mgmt,
10732 .policy = nl80211_policy,
10733 .flags = GENL_ADMIN_PERM,
10734 .internal_flags = NL80211_FLAG_NEED_WDEV |
10735 NL80211_FLAG_NEED_RTNL,
10738 .cmd = NL80211_CMD_FRAME,
10739 .doit = nl80211_tx_mgmt,
10740 .policy = nl80211_policy,
10741 .flags = GENL_ADMIN_PERM,
10742 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10743 NL80211_FLAG_NEED_RTNL,
10746 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10747 .doit = nl80211_tx_mgmt_cancel_wait,
10748 .policy = nl80211_policy,
10749 .flags = GENL_ADMIN_PERM,
10750 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10751 NL80211_FLAG_NEED_RTNL,
10754 .cmd = NL80211_CMD_SET_POWER_SAVE,
10755 .doit = nl80211_set_power_save,
10756 .policy = nl80211_policy,
10757 .flags = GENL_ADMIN_PERM,
10758 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10759 NL80211_FLAG_NEED_RTNL,
10762 .cmd = NL80211_CMD_GET_POWER_SAVE,
10763 .doit = nl80211_get_power_save,
10764 .policy = nl80211_policy,
10765 /* can be retrieved by unprivileged users */
10766 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10767 NL80211_FLAG_NEED_RTNL,
10770 .cmd = NL80211_CMD_SET_CQM,
10771 .doit = nl80211_set_cqm,
10772 .policy = nl80211_policy,
10773 .flags = GENL_ADMIN_PERM,
10774 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10775 NL80211_FLAG_NEED_RTNL,
10778 .cmd = NL80211_CMD_SET_CHANNEL,
10779 .doit = nl80211_set_channel,
10780 .policy = nl80211_policy,
10781 .flags = GENL_ADMIN_PERM,
10782 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10783 NL80211_FLAG_NEED_RTNL,
10786 .cmd = NL80211_CMD_SET_WDS_PEER,
10787 .doit = nl80211_set_wds_peer,
10788 .policy = nl80211_policy,
10789 .flags = GENL_ADMIN_PERM,
10790 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10791 NL80211_FLAG_NEED_RTNL,
10794 .cmd = NL80211_CMD_JOIN_MESH,
10795 .doit = nl80211_join_mesh,
10796 .policy = nl80211_policy,
10797 .flags = GENL_ADMIN_PERM,
10798 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10799 NL80211_FLAG_NEED_RTNL,
10802 .cmd = NL80211_CMD_LEAVE_MESH,
10803 .doit = nl80211_leave_mesh,
10804 .policy = nl80211_policy,
10805 .flags = GENL_ADMIN_PERM,
10806 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10807 NL80211_FLAG_NEED_RTNL,
10810 .cmd = NL80211_CMD_JOIN_OCB,
10811 .doit = nl80211_join_ocb,
10812 .policy = nl80211_policy,
10813 .flags = GENL_ADMIN_PERM,
10814 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10815 NL80211_FLAG_NEED_RTNL,
10818 .cmd = NL80211_CMD_LEAVE_OCB,
10819 .doit = nl80211_leave_ocb,
10820 .policy = nl80211_policy,
10821 .flags = GENL_ADMIN_PERM,
10822 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10823 NL80211_FLAG_NEED_RTNL,
10827 .cmd = NL80211_CMD_GET_WOWLAN,
10828 .doit = nl80211_get_wowlan,
10829 .policy = nl80211_policy,
10830 /* can be retrieved by unprivileged users */
10831 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10832 NL80211_FLAG_NEED_RTNL,
10835 .cmd = NL80211_CMD_SET_WOWLAN,
10836 .doit = nl80211_set_wowlan,
10837 .policy = nl80211_policy,
10838 .flags = GENL_ADMIN_PERM,
10839 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10840 NL80211_FLAG_NEED_RTNL,
10844 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10845 .doit = nl80211_set_rekey_data,
10846 .policy = nl80211_policy,
10847 .flags = GENL_ADMIN_PERM,
10848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10849 NL80211_FLAG_NEED_RTNL |
10850 NL80211_FLAG_CLEAR_SKB,
10853 .cmd = NL80211_CMD_TDLS_MGMT,
10854 .doit = nl80211_tdls_mgmt,
10855 .policy = nl80211_policy,
10856 .flags = GENL_ADMIN_PERM,
10857 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10858 NL80211_FLAG_NEED_RTNL,
10861 .cmd = NL80211_CMD_TDLS_OPER,
10862 .doit = nl80211_tdls_oper,
10863 .policy = nl80211_policy,
10864 .flags = GENL_ADMIN_PERM,
10865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10866 NL80211_FLAG_NEED_RTNL,
10869 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10870 .doit = nl80211_register_unexpected_frame,
10871 .policy = nl80211_policy,
10872 .flags = GENL_ADMIN_PERM,
10873 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10874 NL80211_FLAG_NEED_RTNL,
10877 .cmd = NL80211_CMD_PROBE_CLIENT,
10878 .doit = nl80211_probe_client,
10879 .policy = nl80211_policy,
10880 .flags = GENL_ADMIN_PERM,
10881 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10882 NL80211_FLAG_NEED_RTNL,
10885 .cmd = NL80211_CMD_REGISTER_BEACONS,
10886 .doit = nl80211_register_beacons,
10887 .policy = nl80211_policy,
10888 .flags = GENL_ADMIN_PERM,
10889 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10890 NL80211_FLAG_NEED_RTNL,
10893 .cmd = NL80211_CMD_SET_NOACK_MAP,
10894 .doit = nl80211_set_noack_map,
10895 .policy = nl80211_policy,
10896 .flags = GENL_ADMIN_PERM,
10897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10898 NL80211_FLAG_NEED_RTNL,
10901 .cmd = NL80211_CMD_START_P2P_DEVICE,
10902 .doit = nl80211_start_p2p_device,
10903 .policy = nl80211_policy,
10904 .flags = GENL_ADMIN_PERM,
10905 .internal_flags = NL80211_FLAG_NEED_WDEV |
10906 NL80211_FLAG_NEED_RTNL,
10909 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10910 .doit = nl80211_stop_p2p_device,
10911 .policy = nl80211_policy,
10912 .flags = GENL_ADMIN_PERM,
10913 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10914 NL80211_FLAG_NEED_RTNL,
10917 .cmd = NL80211_CMD_SET_MCAST_RATE,
10918 .doit = nl80211_set_mcast_rate,
10919 .policy = nl80211_policy,
10920 .flags = GENL_ADMIN_PERM,
10921 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10922 NL80211_FLAG_NEED_RTNL,
10925 .cmd = NL80211_CMD_SET_MAC_ACL,
10926 .doit = nl80211_set_mac_acl,
10927 .policy = nl80211_policy,
10928 .flags = GENL_ADMIN_PERM,
10929 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10930 NL80211_FLAG_NEED_RTNL,
10933 .cmd = NL80211_CMD_RADAR_DETECT,
10934 .doit = nl80211_start_radar_detection,
10935 .policy = nl80211_policy,
10936 .flags = GENL_ADMIN_PERM,
10937 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10938 NL80211_FLAG_NEED_RTNL,
10941 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10942 .doit = nl80211_get_protocol_features,
10943 .policy = nl80211_policy,
10946 .cmd = NL80211_CMD_UPDATE_FT_IES,
10947 .doit = nl80211_update_ft_ies,
10948 .policy = nl80211_policy,
10949 .flags = GENL_ADMIN_PERM,
10950 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10951 NL80211_FLAG_NEED_RTNL,
10954 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10955 .doit = nl80211_crit_protocol_start,
10956 .policy = nl80211_policy,
10957 .flags = GENL_ADMIN_PERM,
10958 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10959 NL80211_FLAG_NEED_RTNL,
10962 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10963 .doit = nl80211_crit_protocol_stop,
10964 .policy = nl80211_policy,
10965 .flags = GENL_ADMIN_PERM,
10966 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10967 NL80211_FLAG_NEED_RTNL,
10970 .cmd = NL80211_CMD_GET_COALESCE,
10971 .doit = nl80211_get_coalesce,
10972 .policy = nl80211_policy,
10973 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10974 NL80211_FLAG_NEED_RTNL,
10977 .cmd = NL80211_CMD_SET_COALESCE,
10978 .doit = nl80211_set_coalesce,
10979 .policy = nl80211_policy,
10980 .flags = GENL_ADMIN_PERM,
10981 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10982 NL80211_FLAG_NEED_RTNL,
10985 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10986 .doit = nl80211_channel_switch,
10987 .policy = nl80211_policy,
10988 .flags = GENL_ADMIN_PERM,
10989 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10990 NL80211_FLAG_NEED_RTNL,
10993 .cmd = NL80211_CMD_VENDOR,
10994 .doit = nl80211_vendor_cmd,
10995 .policy = nl80211_policy,
10996 .flags = GENL_ADMIN_PERM,
10997 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10998 NL80211_FLAG_NEED_RTNL,
11001 .cmd = NL80211_CMD_SET_QOS_MAP,
11002 .doit = nl80211_set_qos_map,
11003 .policy = nl80211_policy,
11004 .flags = GENL_ADMIN_PERM,
11005 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11006 NL80211_FLAG_NEED_RTNL,
11009 .cmd = NL80211_CMD_ADD_TX_TS,
11010 .doit = nl80211_add_tx_ts,
11011 .policy = nl80211_policy,
11012 .flags = GENL_ADMIN_PERM,
11013 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11014 NL80211_FLAG_NEED_RTNL,
11017 .cmd = NL80211_CMD_DEL_TX_TS,
11018 .doit = nl80211_del_tx_ts,
11019 .policy = nl80211_policy,
11020 .flags = GENL_ADMIN_PERM,
11021 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11022 NL80211_FLAG_NEED_RTNL,
11025 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11026 .doit = nl80211_tdls_channel_switch,
11027 .policy = nl80211_policy,
11028 .flags = GENL_ADMIN_PERM,
11029 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11030 NL80211_FLAG_NEED_RTNL,
11033 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11034 .doit = nl80211_tdls_cancel_channel_switch,
11035 .policy = nl80211_policy,
11036 .flags = GENL_ADMIN_PERM,
11037 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11038 NL80211_FLAG_NEED_RTNL,
11042 /* notification functions */
11044 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11045 enum nl80211_commands cmd)
11047 struct sk_buff *msg;
11048 struct nl80211_dump_wiphy_state state = {};
11050 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11051 cmd != NL80211_CMD_DEL_WIPHY);
11053 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11057 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
11062 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11063 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11066 static int nl80211_add_scan_req(struct sk_buff *msg,
11067 struct cfg80211_registered_device *rdev)
11069 struct cfg80211_scan_request *req = rdev->scan_req;
11070 struct nlattr *nest;
11076 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11078 goto nla_put_failure;
11079 for (i = 0; i < req->n_ssids; i++) {
11080 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11081 goto nla_put_failure;
11083 nla_nest_end(msg, nest);
11085 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11087 goto nla_put_failure;
11088 for (i = 0; i < req->n_channels; i++) {
11089 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11090 goto nla_put_failure;
11092 nla_nest_end(msg, nest);
11095 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11096 goto nla_put_failure;
11099 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11100 goto nla_put_failure;
11107 static int nl80211_send_scan_msg(struct sk_buff *msg,
11108 struct cfg80211_registered_device *rdev,
11109 struct wireless_dev *wdev,
11110 u32 portid, u32 seq, int flags,
11115 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11119 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11120 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11121 wdev->netdev->ifindex)) ||
11122 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11123 goto nla_put_failure;
11125 /* ignore errors and send incomplete event anyway */
11126 nl80211_add_scan_req(msg, rdev);
11128 genlmsg_end(msg, hdr);
11132 genlmsg_cancel(msg, hdr);
11137 nl80211_send_sched_scan_msg(struct sk_buff *msg,
11138 struct cfg80211_registered_device *rdev,
11139 struct net_device *netdev,
11140 u32 portid, u32 seq, int flags, u32 cmd)
11144 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11148 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11149 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11150 goto nla_put_failure;
11152 genlmsg_end(msg, hdr);
11156 genlmsg_cancel(msg, hdr);
11160 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
11161 struct wireless_dev *wdev)
11163 struct sk_buff *msg;
11165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11169 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11170 NL80211_CMD_TRIGGER_SCAN) < 0) {
11175 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11176 NL80211_MCGRP_SCAN, GFP_KERNEL);
11179 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11180 struct wireless_dev *wdev, bool aborted)
11182 struct sk_buff *msg;
11184 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11188 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11189 aborted ? NL80211_CMD_SCAN_ABORTED :
11190 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
11198 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11199 struct sk_buff *msg)
11204 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11205 NL80211_MCGRP_SCAN, GFP_KERNEL);
11208 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11209 struct net_device *netdev)
11211 struct sk_buff *msg;
11213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11217 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11218 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11223 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11224 NL80211_MCGRP_SCAN, GFP_KERNEL);
11227 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11228 struct net_device *netdev, u32 cmd)
11230 struct sk_buff *msg;
11232 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11236 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11241 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11242 NL80211_MCGRP_SCAN, GFP_KERNEL);
11245 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11246 struct regulatory_request *request)
11248 /* Userspace can always count this one always being set */
11249 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11250 goto nla_put_failure;
11252 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11253 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11254 NL80211_REGDOM_TYPE_WORLD))
11255 goto nla_put_failure;
11256 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11257 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11258 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11259 goto nla_put_failure;
11260 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11261 request->intersect) {
11262 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11263 NL80211_REGDOM_TYPE_INTERSECTION))
11264 goto nla_put_failure;
11266 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11267 NL80211_REGDOM_TYPE_COUNTRY) ||
11268 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11270 goto nla_put_failure;
11273 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11274 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11277 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11278 goto nla_put_failure;
11281 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11282 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11283 goto nla_put_failure;
11293 * This can happen on global regulatory changes or device specific settings
11294 * based on custom regulatory domains.
11296 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11297 struct regulatory_request *request)
11299 struct sk_buff *msg;
11302 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11306 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11312 if (nl80211_reg_change_event_fill(msg, request) == false)
11313 goto nla_put_failure;
11315 genlmsg_end(msg, hdr);
11318 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11319 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11325 genlmsg_cancel(msg, hdr);
11329 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11330 struct net_device *netdev,
11331 const u8 *buf, size_t len,
11332 enum nl80211_commands cmd, gfp_t gfp,
11335 struct sk_buff *msg;
11338 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11342 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11349 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11350 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11351 goto nla_put_failure;
11353 if (uapsd_queues >= 0) {
11354 struct nlattr *nla_wmm =
11355 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11357 goto nla_put_failure;
11359 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11361 goto nla_put_failure;
11363 nla_nest_end(msg, nla_wmm);
11366 genlmsg_end(msg, hdr);
11368 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11369 NL80211_MCGRP_MLME, gfp);
11373 genlmsg_cancel(msg, hdr);
11377 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
11378 struct net_device *netdev, const u8 *buf,
11379 size_t len, gfp_t gfp)
11381 nl80211_send_mlme_event(rdev, netdev, buf, len,
11382 NL80211_CMD_AUTHENTICATE, gfp, -1);
11385 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11386 struct net_device *netdev, const u8 *buf,
11387 size_t len, gfp_t gfp, int uapsd_queues)
11389 nl80211_send_mlme_event(rdev, netdev, buf, len,
11390 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
11393 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
11394 struct net_device *netdev, const u8 *buf,
11395 size_t len, gfp_t gfp)
11397 nl80211_send_mlme_event(rdev, netdev, buf, len,
11398 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
11401 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11402 struct net_device *netdev, const u8 *buf,
11403 size_t len, gfp_t gfp)
11405 nl80211_send_mlme_event(rdev, netdev, buf, len,
11406 NL80211_CMD_DISASSOCIATE, gfp, -1);
11409 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11412 struct wireless_dev *wdev = dev->ieee80211_ptr;
11413 struct wiphy *wiphy = wdev->wiphy;
11414 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11415 const struct ieee80211_mgmt *mgmt = (void *)buf;
11418 if (WARN_ON(len < 2))
11421 if (ieee80211_is_deauth(mgmt->frame_control))
11422 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11424 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
11426 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
11427 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
11429 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
11431 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11432 struct net_device *netdev, int cmd,
11433 const u8 *addr, gfp_t gfp)
11435 struct sk_buff *msg;
11438 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11442 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11448 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11449 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11450 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11451 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11452 goto nla_put_failure;
11454 genlmsg_end(msg, hdr);
11456 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11457 NL80211_MCGRP_MLME, gfp);
11461 genlmsg_cancel(msg, hdr);
11465 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
11466 struct net_device *netdev, const u8 *addr,
11469 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
11473 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
11474 struct net_device *netdev, const u8 *addr,
11477 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11481 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11482 struct net_device *netdev, const u8 *bssid,
11483 const u8 *req_ie, size_t req_ie_len,
11484 const u8 *resp_ie, size_t resp_ie_len,
11485 u16 status, gfp_t gfp)
11487 struct sk_buff *msg;
11490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11494 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11501 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11502 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11503 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11505 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11507 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11508 goto nla_put_failure;
11510 genlmsg_end(msg, hdr);
11512 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11513 NL80211_MCGRP_MLME, gfp);
11517 genlmsg_cancel(msg, hdr);
11522 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11523 struct net_device *netdev, const u8 *bssid,
11524 const u8 *req_ie, size_t req_ie_len,
11525 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11527 struct sk_buff *msg;
11530 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11534 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11540 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11541 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11542 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11544 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11546 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11547 goto nla_put_failure;
11549 genlmsg_end(msg, hdr);
11551 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11552 NL80211_MCGRP_MLME, gfp);
11556 genlmsg_cancel(msg, hdr);
11561 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11562 struct net_device *netdev, u16 reason,
11563 const u8 *ie, size_t ie_len, bool from_ap)
11565 struct sk_buff *msg;
11568 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11572 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11578 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11579 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11580 (from_ap && reason &&
11581 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11583 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11584 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11585 goto nla_put_failure;
11587 genlmsg_end(msg, hdr);
11589 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11590 NL80211_MCGRP_MLME, GFP_KERNEL);
11594 genlmsg_cancel(msg, hdr);
11599 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11600 struct net_device *netdev, const u8 *bssid,
11603 struct sk_buff *msg;
11606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11610 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11616 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11617 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11618 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11619 goto nla_put_failure;
11621 genlmsg_end(msg, hdr);
11623 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11624 NL80211_MCGRP_MLME, gfp);
11628 genlmsg_cancel(msg, hdr);
11632 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11633 const u8* ie, u8 ie_len, gfp_t gfp)
11635 struct wireless_dev *wdev = dev->ieee80211_ptr;
11636 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11637 struct sk_buff *msg;
11640 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11643 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11645 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11649 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11655 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11656 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11657 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11659 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11660 goto nla_put_failure;
11662 genlmsg_end(msg, hdr);
11664 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11665 NL80211_MCGRP_MLME, gfp);
11669 genlmsg_cancel(msg, hdr);
11672 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
11674 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11675 struct net_device *netdev, const u8 *addr,
11676 enum nl80211_key_type key_type, int key_id,
11677 const u8 *tsc, gfp_t gfp)
11679 struct sk_buff *msg;
11682 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11686 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11692 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11693 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11694 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11695 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11697 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11698 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11699 goto nla_put_failure;
11701 genlmsg_end(msg, hdr);
11703 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11704 NL80211_MCGRP_MLME, gfp);
11708 genlmsg_cancel(msg, hdr);
11712 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11713 struct ieee80211_channel *channel_before,
11714 struct ieee80211_channel *channel_after)
11716 struct sk_buff *msg;
11718 struct nlattr *nl_freq;
11720 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
11724 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11731 * Since we are applying the beacon hint to a wiphy we know its
11732 * wiphy_idx is valid
11734 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11735 goto nla_put_failure;
11738 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11740 goto nla_put_failure;
11741 if (nl80211_msg_put_channel(msg, channel_before, false))
11742 goto nla_put_failure;
11743 nla_nest_end(msg, nl_freq);
11746 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11748 goto nla_put_failure;
11749 if (nl80211_msg_put_channel(msg, channel_after, false))
11750 goto nla_put_failure;
11751 nla_nest_end(msg, nl_freq);
11753 genlmsg_end(msg, hdr);
11756 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11757 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11763 genlmsg_cancel(msg, hdr);
11767 static void nl80211_send_remain_on_chan_event(
11768 int cmd, struct cfg80211_registered_device *rdev,
11769 struct wireless_dev *wdev, u64 cookie,
11770 struct ieee80211_channel *chan,
11771 unsigned int duration, gfp_t gfp)
11773 struct sk_buff *msg;
11776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11780 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11786 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11787 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11788 wdev->netdev->ifindex)) ||
11789 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11790 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
11791 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11792 NL80211_CHAN_NO_HT) ||
11793 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11794 goto nla_put_failure;
11796 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11797 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11798 goto nla_put_failure;
11800 genlmsg_end(msg, hdr);
11802 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11803 NL80211_MCGRP_MLME, gfp);
11807 genlmsg_cancel(msg, hdr);
11811 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11812 struct ieee80211_channel *chan,
11813 unsigned int duration, gfp_t gfp)
11815 struct wiphy *wiphy = wdev->wiphy;
11816 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11818 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
11819 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
11820 rdev, wdev, cookie, chan,
11823 EXPORT_SYMBOL(cfg80211_ready_on_channel);
11825 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11826 struct ieee80211_channel *chan,
11829 struct wiphy *wiphy = wdev->wiphy;
11830 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11832 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
11833 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11834 rdev, wdev, cookie, chan, 0, gfp);
11836 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
11838 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11839 struct station_info *sinfo, gfp_t gfp)
11841 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11842 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11843 struct sk_buff *msg;
11845 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11851 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
11852 rdev, dev, mac_addr, sinfo) < 0) {
11857 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11858 NL80211_MCGRP_MLME, gfp);
11860 EXPORT_SYMBOL(cfg80211_new_sta);
11862 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
11863 struct station_info *sinfo, gfp_t gfp)
11865 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11866 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11867 struct sk_buff *msg;
11868 struct station_info empty_sinfo = {};
11871 sinfo = &empty_sinfo;
11873 trace_cfg80211_del_sta(dev, mac_addr);
11875 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11879 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
11880 rdev, dev, mac_addr, sinfo) < 0) {
11885 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11886 NL80211_MCGRP_MLME, gfp);
11888 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
11890 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11891 enum nl80211_connect_failed_reason reason,
11894 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11895 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11896 struct sk_buff *msg;
11899 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11903 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11909 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11910 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11911 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11912 goto nla_put_failure;
11914 genlmsg_end(msg, hdr);
11916 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11917 NL80211_MCGRP_MLME, gfp);
11921 genlmsg_cancel(msg, hdr);
11924 EXPORT_SYMBOL(cfg80211_conn_failed);
11926 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11927 const u8 *addr, gfp_t gfp)
11929 struct wireless_dev *wdev = dev->ieee80211_ptr;
11930 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11931 struct sk_buff *msg;
11933 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
11938 msg = nlmsg_new(100, gfp);
11942 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11948 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11949 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11950 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11951 goto nla_put_failure;
11953 genlmsg_end(msg, hdr);
11954 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11958 genlmsg_cancel(msg, hdr);
11963 bool cfg80211_rx_spurious_frame(struct net_device *dev,
11964 const u8 *addr, gfp_t gfp)
11966 struct wireless_dev *wdev = dev->ieee80211_ptr;
11969 trace_cfg80211_rx_spurious_frame(dev, addr);
11971 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11972 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11973 trace_cfg80211_return_bool(false);
11976 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11978 trace_cfg80211_return_bool(ret);
11981 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
11983 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11984 const u8 *addr, gfp_t gfp)
11986 struct wireless_dev *wdev = dev->ieee80211_ptr;
11989 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11991 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11992 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11993 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11994 trace_cfg80211_return_bool(false);
11997 ret = __nl80211_unexpected_frame(dev,
11998 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12000 trace_cfg80211_return_bool(ret);
12003 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
12005 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
12006 struct wireless_dev *wdev, u32 nlportid,
12007 int freq, int sig_dbm,
12008 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
12010 struct net_device *netdev = wdev->netdev;
12011 struct sk_buff *msg;
12014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12018 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12024 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12025 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12026 netdev->ifindex)) ||
12027 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12028 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12030 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12031 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12033 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
12034 goto nla_put_failure;
12036 genlmsg_end(msg, hdr);
12038 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12041 genlmsg_cancel(msg, hdr);
12046 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12047 const u8 *buf, size_t len, bool ack, gfp_t gfp)
12049 struct wiphy *wiphy = wdev->wiphy;
12050 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12051 struct net_device *netdev = wdev->netdev;
12052 struct sk_buff *msg;
12055 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12057 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12061 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
12067 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12068 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12069 netdev->ifindex)) ||
12070 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12071 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12072 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12073 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12074 goto nla_put_failure;
12076 genlmsg_end(msg, hdr);
12078 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12079 NL80211_MCGRP_MLME, gfp);
12083 genlmsg_cancel(msg, hdr);
12086 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
12088 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12089 const char *mac, gfp_t gfp)
12091 struct wireless_dev *wdev = dev->ieee80211_ptr;
12092 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12093 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12099 cb = (void **)msg->cb;
12101 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12107 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12108 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12109 goto nla_put_failure;
12111 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
12112 goto nla_put_failure;
12114 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12116 goto nla_put_failure;
12126 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12128 void **cb = (void **)msg->cb;
12129 struct cfg80211_registered_device *rdev = cb[2];
12131 nla_nest_end(msg, cb[1]);
12132 genlmsg_end(msg, cb[0]);
12134 memset(msg->cb, 0, sizeof(msg->cb));
12136 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12137 NL80211_MCGRP_MLME, gfp);
12140 void cfg80211_cqm_rssi_notify(struct net_device *dev,
12141 enum nl80211_cqm_rssi_threshold_event rssi_event,
12144 struct sk_buff *msg;
12146 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12148 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12149 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12152 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12156 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12158 goto nla_put_failure;
12160 cfg80211_send_cqm(msg, gfp);
12167 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
12169 void cfg80211_cqm_txe_notify(struct net_device *dev,
12170 const u8 *peer, u32 num_packets,
12171 u32 rate, u32 intvl, gfp_t gfp)
12173 struct sk_buff *msg;
12175 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12179 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12180 goto nla_put_failure;
12182 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12183 goto nla_put_failure;
12185 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12186 goto nla_put_failure;
12188 cfg80211_send_cqm(msg, gfp);
12194 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12196 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12197 const u8 *peer, u32 num_packets, gfp_t gfp)
12199 struct sk_buff *msg;
12201 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12203 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12207 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12208 goto nla_put_failure;
12210 cfg80211_send_cqm(msg, gfp);
12216 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12218 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12220 struct sk_buff *msg;
12222 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12226 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12227 goto nla_put_failure;
12229 cfg80211_send_cqm(msg, gfp);
12235 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12237 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12238 struct net_device *netdev, const u8 *bssid,
12239 const u8 *replay_ctr, gfp_t gfp)
12241 struct sk_buff *msg;
12242 struct nlattr *rekey_attr;
12245 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12249 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12255 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12256 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12257 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12258 goto nla_put_failure;
12260 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12262 goto nla_put_failure;
12264 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12265 NL80211_REPLAY_CTR_LEN, replay_ctr))
12266 goto nla_put_failure;
12268 nla_nest_end(msg, rekey_attr);
12270 genlmsg_end(msg, hdr);
12272 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12273 NL80211_MCGRP_MLME, gfp);
12277 genlmsg_cancel(msg, hdr);
12281 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12282 const u8 *replay_ctr, gfp_t gfp)
12284 struct wireless_dev *wdev = dev->ieee80211_ptr;
12285 struct wiphy *wiphy = wdev->wiphy;
12286 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12288 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12289 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12291 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12294 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12295 struct net_device *netdev, int index,
12296 const u8 *bssid, bool preauth, gfp_t gfp)
12298 struct sk_buff *msg;
12299 struct nlattr *attr;
12302 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12306 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12312 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12313 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12314 goto nla_put_failure;
12316 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12318 goto nla_put_failure;
12320 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12321 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12323 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12324 goto nla_put_failure;
12326 nla_nest_end(msg, attr);
12328 genlmsg_end(msg, hdr);
12330 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12331 NL80211_MCGRP_MLME, gfp);
12335 genlmsg_cancel(msg, hdr);
12339 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12340 const u8 *bssid, bool preauth, gfp_t gfp)
12342 struct wireless_dev *wdev = dev->ieee80211_ptr;
12343 struct wiphy *wiphy = wdev->wiphy;
12344 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12346 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12347 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12349 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12351 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12352 struct net_device *netdev,
12353 struct cfg80211_chan_def *chandef,
12355 enum nl80211_commands notif,
12358 struct sk_buff *msg;
12361 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12365 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
12371 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12372 goto nla_put_failure;
12374 if (nl80211_send_chandef(msg, chandef))
12375 goto nla_put_failure;
12377 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12378 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12379 goto nla_put_failure;
12381 genlmsg_end(msg, hdr);
12383 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12384 NL80211_MCGRP_MLME, gfp);
12388 genlmsg_cancel(msg, hdr);
12392 void cfg80211_ch_switch_notify(struct net_device *dev,
12393 struct cfg80211_chan_def *chandef)
12395 struct wireless_dev *wdev = dev->ieee80211_ptr;
12396 struct wiphy *wiphy = wdev->wiphy;
12397 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12399 ASSERT_WDEV_LOCK(wdev);
12401 trace_cfg80211_ch_switch_notify(dev, chandef);
12403 wdev->chandef = *chandef;
12404 wdev->preset_chandef = *chandef;
12405 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12406 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
12408 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12410 void cfg80211_ch_switch_started_notify(struct net_device *dev,
12411 struct cfg80211_chan_def *chandef,
12414 struct wireless_dev *wdev = dev->ieee80211_ptr;
12415 struct wiphy *wiphy = wdev->wiphy;
12416 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12418 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12420 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12421 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12423 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12426 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
12427 const struct cfg80211_chan_def *chandef,
12428 enum nl80211_radar_event event,
12429 struct net_device *netdev, gfp_t gfp)
12431 struct sk_buff *msg;
12434 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12438 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12444 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12445 goto nla_put_failure;
12447 /* NOP and radar events don't need a netdev parameter */
12449 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12451 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12452 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12453 goto nla_put_failure;
12456 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12457 goto nla_put_failure;
12459 if (nl80211_send_chandef(msg, chandef))
12460 goto nla_put_failure;
12462 genlmsg_end(msg, hdr);
12464 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12465 NL80211_MCGRP_MLME, gfp);
12469 genlmsg_cancel(msg, hdr);
12473 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12474 u64 cookie, bool acked, gfp_t gfp)
12476 struct wireless_dev *wdev = dev->ieee80211_ptr;
12477 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12478 struct sk_buff *msg;
12481 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12483 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12488 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12495 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12496 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12497 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12498 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12499 goto nla_put_failure;
12501 genlmsg_end(msg, hdr);
12503 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12504 NL80211_MCGRP_MLME, gfp);
12508 genlmsg_cancel(msg, hdr);
12511 EXPORT_SYMBOL(cfg80211_probe_status);
12513 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12514 const u8 *frame, size_t len,
12515 int freq, int sig_dbm)
12517 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12518 struct sk_buff *msg;
12520 struct cfg80211_beacon_registration *reg;
12522 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12524 spin_lock_bh(&rdev->beacon_registrations_lock);
12525 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12526 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12528 spin_unlock_bh(&rdev->beacon_registrations_lock);
12532 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12534 goto nla_put_failure;
12536 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12538 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12540 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12541 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12542 goto nla_put_failure;
12544 genlmsg_end(msg, hdr);
12546 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12548 spin_unlock_bh(&rdev->beacon_registrations_lock);
12552 spin_unlock_bh(&rdev->beacon_registrations_lock);
12554 genlmsg_cancel(msg, hdr);
12557 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12560 static int cfg80211_net_detect_results(struct sk_buff *msg,
12561 struct cfg80211_wowlan_wakeup *wakeup)
12563 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12564 struct nlattr *nl_results, *nl_match, *nl_freqs;
12567 nl_results = nla_nest_start(
12568 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12572 for (i = 0; i < nd->n_matches; i++) {
12573 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12575 nl_match = nla_nest_start(msg, i);
12579 /* The SSID attribute is optional in nl80211, but for
12580 * simplicity reasons it's always present in the
12581 * cfg80211 structure. If a driver can't pass the
12582 * SSID, that needs to be changed. A zero length SSID
12583 * is still a valid SSID (wildcard), so it cannot be
12584 * used for this purpose.
12586 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12587 match->ssid.ssid)) {
12588 nla_nest_cancel(msg, nl_match);
12592 if (match->n_channels) {
12593 nl_freqs = nla_nest_start(
12594 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12596 nla_nest_cancel(msg, nl_match);
12600 for (j = 0; j < match->n_channels; j++) {
12601 if (nla_put_u32(msg, j, match->channels[j])) {
12602 nla_nest_cancel(msg, nl_freqs);
12603 nla_nest_cancel(msg, nl_match);
12608 nla_nest_end(msg, nl_freqs);
12611 nla_nest_end(msg, nl_match);
12615 nla_nest_end(msg, nl_results);
12619 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12620 struct cfg80211_wowlan_wakeup *wakeup,
12623 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12624 struct sk_buff *msg;
12628 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12631 size += wakeup->packet_present_len;
12633 msg = nlmsg_new(size, gfp);
12637 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12641 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12642 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12645 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12646 wdev->netdev->ifindex))
12650 struct nlattr *reasons;
12652 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
12656 if (wakeup->disconnect &&
12657 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12659 if (wakeup->magic_pkt &&
12660 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12662 if (wakeup->gtk_rekey_failure &&
12663 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12665 if (wakeup->eap_identity_req &&
12666 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12668 if (wakeup->four_way_handshake &&
12669 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12671 if (wakeup->rfkill_release &&
12672 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12675 if (wakeup->pattern_idx >= 0 &&
12676 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12677 wakeup->pattern_idx))
12680 if (wakeup->tcp_match &&
12681 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12684 if (wakeup->tcp_connlost &&
12685 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12688 if (wakeup->tcp_nomoretokens &&
12690 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12693 if (wakeup->packet) {
12694 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12695 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12697 if (!wakeup->packet_80211) {
12699 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12701 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12704 if (wakeup->packet_len &&
12705 nla_put_u32(msg, len_attr, wakeup->packet_len))
12708 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12713 if (wakeup->net_detect &&
12714 cfg80211_net_detect_results(msg, wakeup))
12717 nla_nest_end(msg, reasons);
12720 genlmsg_end(msg, hdr);
12722 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12723 NL80211_MCGRP_MLME, gfp);
12729 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12732 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12733 enum nl80211_tdls_operation oper,
12734 u16 reason_code, gfp_t gfp)
12736 struct wireless_dev *wdev = dev->ieee80211_ptr;
12737 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12738 struct sk_buff *msg;
12741 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12744 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12748 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12754 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12755 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12756 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12757 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12758 (reason_code > 0 &&
12759 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12760 goto nla_put_failure;
12762 genlmsg_end(msg, hdr);
12764 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12765 NL80211_MCGRP_MLME, gfp);
12769 genlmsg_cancel(msg, hdr);
12772 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12774 static int nl80211_netlink_notify(struct notifier_block * nb,
12775 unsigned long state,
12778 struct netlink_notify *notify = _notify;
12779 struct cfg80211_registered_device *rdev;
12780 struct wireless_dev *wdev;
12781 struct cfg80211_beacon_registration *reg, *tmp;
12783 if (state != NETLINK_URELEASE)
12784 return NOTIFY_DONE;
12788 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
12789 bool schedule_destroy_work = false;
12790 bool schedule_scan_stop = false;
12791 struct cfg80211_sched_scan_request *sched_scan_req =
12792 rcu_dereference(rdev->sched_scan_req);
12794 if (sched_scan_req && notify->portid &&
12795 sched_scan_req->owner_nlportid == notify->portid)
12796 schedule_scan_stop = true;
12798 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
12799 cfg80211_mlme_unregister_socket(wdev, notify->portid);
12801 if (wdev->owner_nlportid == notify->portid)
12802 schedule_destroy_work = true;
12805 spin_lock_bh(&rdev->beacon_registrations_lock);
12806 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12808 if (reg->nlportid == notify->portid) {
12809 list_del(®->list);
12814 spin_unlock_bh(&rdev->beacon_registrations_lock);
12816 if (schedule_destroy_work) {
12817 struct cfg80211_iface_destroy *destroy;
12819 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12821 destroy->nlportid = notify->portid;
12822 spin_lock(&rdev->destroy_list_lock);
12823 list_add(&destroy->list, &rdev->destroy_list);
12824 spin_unlock(&rdev->destroy_list_lock);
12825 schedule_work(&rdev->destroy_work);
12827 } else if (schedule_scan_stop) {
12828 sched_scan_req->owner_nlportid = 0;
12830 if (rdev->ops->sched_scan_stop &&
12831 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12832 schedule_work(&rdev->sched_scan_stop_wk);
12839 * It is possible that the user space process that is controlling the
12840 * indoor setting disappeared, so notify the regulatory core.
12842 regulatory_netlink_notify(notify->portid);
12846 static struct notifier_block nl80211_netlink_notifier = {
12847 .notifier_call = nl80211_netlink_notify,
12850 void cfg80211_ft_event(struct net_device *netdev,
12851 struct cfg80211_ft_event_params *ft_event)
12853 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
12854 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12855 struct sk_buff *msg;
12858 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12860 if (!ft_event->target_ap)
12863 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12867 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
12871 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12872 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12873 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12876 if (ft_event->ies &&
12877 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12879 if (ft_event->ric_ies &&
12880 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12881 ft_event->ric_ies))
12884 genlmsg_end(msg, hdr);
12886 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12887 NL80211_MCGRP_MLME, GFP_KERNEL);
12892 EXPORT_SYMBOL(cfg80211_ft_event);
12894 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12896 struct cfg80211_registered_device *rdev;
12897 struct sk_buff *msg;
12901 rdev = wiphy_to_rdev(wdev->wiphy);
12902 if (!rdev->crit_proto_nlportid)
12905 nlportid = rdev->crit_proto_nlportid;
12906 rdev->crit_proto_nlportid = 0;
12908 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12912 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12914 goto nla_put_failure;
12916 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12917 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12918 goto nla_put_failure;
12920 genlmsg_end(msg, hdr);
12922 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12927 genlmsg_cancel(msg, hdr);
12931 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12933 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12935 struct wiphy *wiphy = wdev->wiphy;
12936 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12937 struct sk_buff *msg;
12940 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12944 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12948 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12949 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12950 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12953 genlmsg_end(msg, hdr);
12955 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12956 NL80211_MCGRP_MLME, GFP_KERNEL);
12962 /* initialisation/exit functions */
12964 int nl80211_init(void)
12968 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12973 err = netlink_register_notifier(&nl80211_netlink_notifier);
12979 genl_unregister_family(&nl80211_fam);
12983 void nl80211_exit(void)
12985 netlink_unregister_notifier(&nl80211_netlink_notifier);
12986 genl_unregister_family(&nl80211_fam);