2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
6 * Copyright 2015-2017 Intel Deutschland GmbH
7 * Copyright (C) 2018 Intel Corporation
11 #include <linux/module.h>
12 #include <linux/err.h>
13 #include <linux/slab.h>
14 #include <linux/list.h>
15 #include <linux/if_ether.h>
16 #include <linux/ieee80211.h>
17 #include <linux/nl80211.h>
18 #include <linux/rtnetlink.h>
19 #include <linux/netlink.h>
20 #include <linux/nospec.h>
21 #include <linux/etherdevice.h>
22 #include <net/net_namespace.h>
23 #include <net/genetlink.h>
24 #include <net/cfg80211.h>
26 #include <net/inet_connection_sock.h>
32 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
33 struct genl_info *info,
34 struct cfg80211_crypto_settings *settings,
37 /* the netlink family */
38 static struct genl_family nl80211_fam;
40 /* multicast groups */
41 enum nl80211_multicast_groups {
44 NL80211_MCGRP_REGULATORY,
48 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
51 static const struct genl_multicast_group nl80211_mcgrps[] = {
52 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
53 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
54 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
55 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
56 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
57 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
58 #ifdef CONFIG_NL80211_TESTMODE
59 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
63 /* returns ERR_PTR values */
64 static struct wireless_dev *
65 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
67 struct cfg80211_registered_device *rdev;
68 struct wireless_dev *result = NULL;
69 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
70 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
77 if (!have_ifidx && !have_wdev_id)
78 return ERR_PTR(-EINVAL);
81 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
83 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
84 wiphy_idx = wdev_id >> 32;
87 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
88 struct wireless_dev *wdev;
90 if (wiphy_net(&rdev->wiphy) != netns)
93 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
96 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
97 if (have_ifidx && wdev->netdev &&
98 wdev->netdev->ifindex == ifidx) {
102 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
114 return ERR_PTR(-ENODEV);
117 static struct cfg80211_registered_device *
118 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
120 struct cfg80211_registered_device *rdev = NULL, *tmp;
121 struct net_device *netdev;
125 if (!attrs[NL80211_ATTR_WIPHY] &&
126 !attrs[NL80211_ATTR_IFINDEX] &&
127 !attrs[NL80211_ATTR_WDEV])
128 return ERR_PTR(-EINVAL);
130 if (attrs[NL80211_ATTR_WIPHY])
131 rdev = cfg80211_rdev_by_wiphy_idx(
132 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
134 if (attrs[NL80211_ATTR_WDEV]) {
135 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
136 struct wireless_dev *wdev;
139 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
141 /* make sure wdev exists */
142 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
143 if (wdev->identifier != (u32)wdev_id)
152 if (rdev && tmp != rdev)
153 return ERR_PTR(-EINVAL);
158 if (attrs[NL80211_ATTR_IFINDEX]) {
159 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
161 netdev = __dev_get_by_index(netns, ifindex);
163 if (netdev->ieee80211_ptr)
165 netdev->ieee80211_ptr->wiphy);
169 /* not wireless device -- return error */
171 return ERR_PTR(-EINVAL);
173 /* mismatch -- return error */
174 if (rdev && tmp != rdev)
175 return ERR_PTR(-EINVAL);
182 return ERR_PTR(-ENODEV);
184 if (netns != wiphy_net(&rdev->wiphy))
185 return ERR_PTR(-ENODEV);
191 * This function returns a pointer to the driver
192 * that the genl_info item that is passed refers to.
194 * The result of this can be a PTR_ERR and hence must
195 * be checked with IS_ERR() for errors.
197 static struct cfg80211_registered_device *
198 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
200 return __cfg80211_rdev_from_attrs(netns, info->attrs);
203 /* policy for the attributes */
204 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
205 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
206 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
208 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
210 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
211 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
212 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
213 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
214 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
216 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
217 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
218 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
219 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
220 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
221 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
223 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
224 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
225 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
227 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
228 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
230 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
231 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
232 .len = WLAN_MAX_KEY_LEN },
233 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
234 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
235 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
236 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
237 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
239 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
240 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
241 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
242 .len = IEEE80211_MAX_DATA_LEN },
243 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
244 .len = IEEE80211_MAX_DATA_LEN },
245 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
246 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
247 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
248 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
249 .len = NL80211_MAX_SUPP_RATES },
250 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
251 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
252 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
253 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_MESH_ID_LEN },
255 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
257 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
258 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
260 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
261 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
262 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
263 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
264 .len = NL80211_MAX_SUPP_RATES },
265 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
267 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
268 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
270 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
272 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
273 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
274 .len = IEEE80211_MAX_DATA_LEN },
275 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
276 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
278 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
279 .len = IEEE80211_MAX_SSID_LEN },
280 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
281 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
282 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
283 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
284 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
285 [NL80211_ATTR_STA_FLAGS2] = {
286 .len = sizeof(struct nl80211_sta_flag_update),
288 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
289 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
290 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
291 [NL80211_ATTR_CONTROL_PORT_OVER_NL80211] = { .type = NLA_FLAG },
292 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
293 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
294 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
295 [NL80211_ATTR_PID] = { .type = NLA_U32 },
296 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
297 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
298 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
299 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
300 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
301 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
302 .len = IEEE80211_MAX_DATA_LEN },
303 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
304 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
305 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
306 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
307 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
308 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
309 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
310 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
311 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
312 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
313 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
314 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
315 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
316 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
317 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
318 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
319 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
320 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
321 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
322 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
324 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
325 .len = IEEE80211_MAX_DATA_LEN },
326 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
327 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
328 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
329 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
330 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
331 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
332 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
333 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
334 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
335 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
336 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
337 .len = IEEE80211_MAX_DATA_LEN },
338 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
339 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
340 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
341 .len = NL80211_HT_CAPABILITY_LEN
343 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
344 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
345 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
346 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
347 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
348 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
349 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
350 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
351 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
352 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
353 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
354 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
355 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
356 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
357 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
358 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
359 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
360 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
361 .len = NL80211_VHT_CAPABILITY_LEN,
363 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
364 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
365 .len = IEEE80211_MAX_DATA_LEN },
366 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
367 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
368 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
369 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
370 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
371 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
372 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
373 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
374 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
375 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
376 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
377 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
378 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
379 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
380 .len = IEEE80211_QOS_MAP_LEN_MAX },
381 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
382 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
383 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
384 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
385 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
386 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
387 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
388 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
389 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
390 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
391 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
392 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
393 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
394 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
395 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
396 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
397 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
398 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
399 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
400 .len = VHT_MUMIMO_GROUPS_DATA_LEN
402 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
403 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
404 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
405 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
406 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
407 .len = FILS_MAX_KEK_LEN },
408 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
409 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
410 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
411 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
412 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
413 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
415 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
416 [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
417 .len = FILS_ERP_MAX_USERNAME_LEN },
418 [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
419 .len = FILS_ERP_MAX_REALM_LEN },
420 [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
421 [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
422 .len = FILS_ERP_MAX_RRK_LEN },
423 [NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 },
424 [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
425 [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
426 [NL80211_ATTR_EXTERNAL_AUTH_SUPPORT] = { .type = NLA_FLAG },
428 [NL80211_ATTR_TXQ_LIMIT] = { .type = NLA_U32 },
429 [NL80211_ATTR_TXQ_MEMORY_LIMIT] = { .type = NLA_U32 },
430 [NL80211_ATTR_TXQ_QUANTUM] = { .type = NLA_U32 },
431 [NL80211_ATTR_HE_CAPABILITY] = { .type = NLA_BINARY,
432 .len = NL80211_HE_MAX_CAPABILITY_LEN },
435 /* policy for the key attributes */
436 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
437 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
438 [NL80211_KEY_IDX] = { .type = NLA_U8 },
439 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
440 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
441 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
442 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
443 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
444 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
447 /* policy for the key default flags */
448 static const struct nla_policy
449 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
450 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
451 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
455 /* policy for WoWLAN attributes */
456 static const struct nla_policy
457 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
458 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
459 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
460 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
461 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
462 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
463 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
464 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
465 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
466 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
467 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
470 static const struct nla_policy
471 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
472 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
473 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
474 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
475 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
476 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
477 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
478 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
479 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
481 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
482 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
484 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
485 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
486 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
488 #endif /* CONFIG_PM */
490 /* policy for coalesce rule attributes */
491 static const struct nla_policy
492 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
493 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
494 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
495 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
498 /* policy for GTK rekey offload attributes */
499 static const struct nla_policy
500 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
501 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
502 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
503 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
506 static const struct nla_policy
507 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
508 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
509 .len = IEEE80211_MAX_SSID_LEN },
510 [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN },
511 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
514 static const struct nla_policy
515 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
516 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
517 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
520 static const struct nla_policy
521 nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
522 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
523 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
524 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
525 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
529 /* policy for NAN function attributes */
530 static const struct nla_policy
531 nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
532 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
533 [NL80211_NAN_FUNC_SERVICE_ID] = {
534 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
535 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
536 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
537 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
538 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
539 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
540 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
541 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
542 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
543 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
544 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
545 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
546 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
547 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
548 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
549 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
552 /* policy for Service Response Filter attributes */
553 static const struct nla_policy
554 nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
555 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
556 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
557 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
558 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
559 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
562 /* policy for packet pattern attributes */
563 static const struct nla_policy
564 nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
565 [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
566 [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
567 [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
570 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
571 struct netlink_callback *cb,
572 struct cfg80211_registered_device **rdev,
573 struct wireless_dev **wdev)
578 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
579 genl_family_attrbuf(&nl80211_fam),
580 nl80211_fam.maxattr, nl80211_policy, NULL);
584 *wdev = __cfg80211_wdev_from_attrs(
586 genl_family_attrbuf(&nl80211_fam));
588 return PTR_ERR(*wdev);
589 *rdev = wiphy_to_rdev((*wdev)->wiphy);
590 /* 0 is the first index - add 1 to parse only once */
591 cb->args[0] = (*rdev)->wiphy_idx + 1;
592 cb->args[1] = (*wdev)->identifier;
594 /* subtract the 1 again here */
595 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
596 struct wireless_dev *tmp;
600 *rdev = wiphy_to_rdev(wiphy);
603 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
604 if (tmp->identifier == cb->args[1]) {
618 static bool is_valid_ie_attr(const struct nlattr *attr)
626 pos = nla_data(attr);
647 /* message building helper */
648 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
651 /* since there is no private header just add the generic one */
652 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
655 static int nl80211_msg_put_wmm_rules(struct sk_buff *msg,
656 const struct ieee80211_reg_rule *rule)
659 struct nlattr *nl_wmm_rules =
660 nla_nest_start(msg, NL80211_FREQUENCY_ATTR_WMM);
663 goto nla_put_failure;
665 for (j = 0; j < IEEE80211_NUM_ACS; j++) {
666 struct nlattr *nl_wmm_rule = nla_nest_start(msg, j);
669 goto nla_put_failure;
671 if (nla_put_u16(msg, NL80211_WMMR_CW_MIN,
672 rule->wmm_rule.client[j].cw_min) ||
673 nla_put_u16(msg, NL80211_WMMR_CW_MAX,
674 rule->wmm_rule.client[j].cw_max) ||
675 nla_put_u8(msg, NL80211_WMMR_AIFSN,
676 rule->wmm_rule.client[j].aifsn) ||
677 nla_put_u16(msg, NL80211_WMMR_TXOP,
678 rule->wmm_rule.client[j].cot))
679 goto nla_put_failure;
681 nla_nest_end(msg, nl_wmm_rule);
683 nla_nest_end(msg, nl_wmm_rules);
691 static int nl80211_msg_put_channel(struct sk_buff *msg, struct wiphy *wiphy,
692 struct ieee80211_channel *chan,
695 /* Some channels must be completely excluded from the
696 * list to protect old user-space tools from breaking
698 if (!large && chan->flags &
699 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
702 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
704 goto nla_put_failure;
706 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
707 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
708 goto nla_put_failure;
709 if (chan->flags & IEEE80211_CHAN_NO_IR) {
710 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
711 goto nla_put_failure;
712 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
713 goto nla_put_failure;
715 if (chan->flags & IEEE80211_CHAN_RADAR) {
716 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
717 goto nla_put_failure;
721 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
723 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
725 goto nla_put_failure;
726 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
728 goto nla_put_failure;
730 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
732 goto nla_put_failure;
737 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
738 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
739 goto nla_put_failure;
740 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
741 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
742 goto nla_put_failure;
743 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
744 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
745 goto nla_put_failure;
746 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
747 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
748 goto nla_put_failure;
749 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
750 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
751 goto nla_put_failure;
752 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
753 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
754 goto nla_put_failure;
755 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
756 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
757 goto nla_put_failure;
758 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
759 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
760 goto nla_put_failure;
763 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
764 DBM_TO_MBM(chan->max_power)))
765 goto nla_put_failure;
768 const struct ieee80211_reg_rule *rule =
769 freq_reg_info(wiphy, MHZ_TO_KHZ(chan->center_freq));
771 if (!IS_ERR_OR_NULL(rule) && rule->has_wmm) {
772 if (nl80211_msg_put_wmm_rules(msg, rule))
773 goto nla_put_failure;
783 static bool nl80211_put_txq_stats(struct sk_buff *msg,
784 struct cfg80211_txq_stats *txqstats,
787 struct nlattr *txqattr;
789 #define PUT_TXQVAL_U32(attr, memb) do { \
790 if (txqstats->filled & BIT(NL80211_TXQ_STATS_ ## attr) && \
791 nla_put_u32(msg, NL80211_TXQ_STATS_ ## attr, txqstats->memb)) \
795 txqattr = nla_nest_start(msg, attrtype);
799 PUT_TXQVAL_U32(BACKLOG_BYTES, backlog_bytes);
800 PUT_TXQVAL_U32(BACKLOG_PACKETS, backlog_packets);
801 PUT_TXQVAL_U32(FLOWS, flows);
802 PUT_TXQVAL_U32(DROPS, drops);
803 PUT_TXQVAL_U32(ECN_MARKS, ecn_marks);
804 PUT_TXQVAL_U32(OVERLIMIT, overlimit);
805 PUT_TXQVAL_U32(OVERMEMORY, overmemory);
806 PUT_TXQVAL_U32(COLLISIONS, collisions);
807 PUT_TXQVAL_U32(TX_BYTES, tx_bytes);
808 PUT_TXQVAL_U32(TX_PACKETS, tx_packets);
809 PUT_TXQVAL_U32(MAX_FLOWS, max_flows);
810 nla_nest_end(msg, txqattr);
812 #undef PUT_TXQVAL_U32
816 /* netlink command implementations */
823 bool def_uni, def_multi;
826 static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key,
829 struct nlattr *tb[NL80211_KEY_MAX + 1];
830 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
831 nl80211_key_policy, info->extack);
835 k->def = !!tb[NL80211_KEY_DEFAULT];
836 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
845 if (tb[NL80211_KEY_IDX])
846 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
848 if (tb[NL80211_KEY_DATA]) {
849 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
850 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
853 if (tb[NL80211_KEY_SEQ]) {
854 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
855 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
858 if (tb[NL80211_KEY_CIPHER])
859 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
861 if (tb[NL80211_KEY_TYPE]) {
862 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
863 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
864 return genl_err_attr(info, -EINVAL,
865 tb[NL80211_KEY_TYPE]);
868 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
869 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
871 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
872 tb[NL80211_KEY_DEFAULT_TYPES],
873 nl80211_key_default_policy,
878 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
879 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
885 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
887 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
888 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
889 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
892 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
893 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
894 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
897 if (info->attrs[NL80211_ATTR_KEY_IDX])
898 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
900 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
901 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
903 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
904 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
913 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
914 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
915 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) {
916 GENL_SET_ERR_MSG(info, "key type out of range");
921 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
922 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
923 int err = nla_parse_nested(kdt,
924 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
925 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
926 nl80211_key_default_policy,
931 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
932 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
938 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
942 memset(k, 0, sizeof(*k));
946 if (info->attrs[NL80211_ATTR_KEY])
947 err = nl80211_parse_key_new(info, info->attrs[NL80211_ATTR_KEY], k);
949 err = nl80211_parse_key_old(info, k);
954 if (k->def && k->defmgmt) {
955 GENL_SET_ERR_MSG(info, "key with def && defmgmt is invalid");
960 if (k->def_uni || !k->def_multi) {
961 GENL_SET_ERR_MSG(info, "defmgmt key must be mcast");
968 if (k->idx < 4 || k->idx > 5) {
969 GENL_SET_ERR_MSG(info,
970 "defmgmt key idx not 4 or 5");
974 if (k->idx < 0 || k->idx > 3) {
975 GENL_SET_ERR_MSG(info, "def key idx not 0-3");
979 if (k->idx < 0 || k->idx > 5) {
980 GENL_SET_ERR_MSG(info, "key idx not 0-5");
989 static struct cfg80211_cached_keys *
990 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
991 struct genl_info *info, bool *no_ht)
993 struct nlattr *keys = info->attrs[NL80211_ATTR_KEYS];
994 struct key_parse parse;
996 struct cfg80211_cached_keys *result;
997 int rem, err, def = 0;
998 bool have_key = false;
1000 nla_for_each_nested(key, keys, rem) {
1008 result = kzalloc(sizeof(*result), GFP_KERNEL);
1010 return ERR_PTR(-ENOMEM);
1014 nla_for_each_nested(key, keys, rem) {
1015 memset(&parse, 0, sizeof(parse));
1018 err = nl80211_parse_key_new(info, key, &parse);
1024 if (parse.idx < 0 || parse.idx > 3) {
1025 GENL_SET_ERR_MSG(info, "key index out of range [0-3]");
1030 GENL_SET_ERR_MSG(info,
1031 "only one key can be default");
1035 result->def = parse.idx;
1036 if (!parse.def_uni || !parse.def_multi)
1038 } else if (parse.defmgmt)
1040 err = cfg80211_validate_key_settings(rdev, &parse.p,
1041 parse.idx, false, NULL);
1044 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
1045 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
1046 GENL_SET_ERR_MSG(info, "connect key must be WEP");
1050 result->params[parse.idx].cipher = parse.p.cipher;
1051 result->params[parse.idx].key_len = parse.p.key_len;
1052 result->params[parse.idx].key = result->data[parse.idx];
1053 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
1055 /* must be WEP key if we got here */
1060 if (result->def < 0) {
1062 GENL_SET_ERR_MSG(info, "need a default/TX key");
1069 return ERR_PTR(err);
1072 static int nl80211_key_allowed(struct wireless_dev *wdev)
1074 ASSERT_WDEV_LOCK(wdev);
1076 switch (wdev->iftype) {
1077 case NL80211_IFTYPE_AP:
1078 case NL80211_IFTYPE_AP_VLAN:
1079 case NL80211_IFTYPE_P2P_GO:
1080 case NL80211_IFTYPE_MESH_POINT:
1082 case NL80211_IFTYPE_ADHOC:
1083 case NL80211_IFTYPE_STATION:
1084 case NL80211_IFTYPE_P2P_CLIENT:
1085 if (!wdev->current_bss)
1088 case NL80211_IFTYPE_UNSPECIFIED:
1089 case NL80211_IFTYPE_OCB:
1090 case NL80211_IFTYPE_MONITOR:
1091 case NL80211_IFTYPE_NAN:
1092 case NL80211_IFTYPE_P2P_DEVICE:
1093 case NL80211_IFTYPE_WDS:
1094 case NUM_NL80211_IFTYPES:
1101 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
1104 struct ieee80211_channel *chan;
1108 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
1109 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
1114 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
1116 struct nlattr *nl_modes = nla_nest_start(msg, attr);
1120 goto nla_put_failure;
1124 if ((ifmodes & 1) && nla_put_flag(msg, i))
1125 goto nla_put_failure;
1130 nla_nest_end(msg, nl_modes);
1137 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
1138 struct sk_buff *msg,
1141 struct nlattr *nl_combis;
1144 nl_combis = nla_nest_start(msg,
1145 NL80211_ATTR_INTERFACE_COMBINATIONS);
1147 goto nla_put_failure;
1149 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1150 const struct ieee80211_iface_combination *c;
1151 struct nlattr *nl_combi, *nl_limits;
1153 c = &wiphy->iface_combinations[i];
1155 nl_combi = nla_nest_start(msg, i + 1);
1157 goto nla_put_failure;
1159 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1161 goto nla_put_failure;
1163 for (j = 0; j < c->n_limits; j++) {
1164 struct nlattr *nl_limit;
1166 nl_limit = nla_nest_start(msg, j + 1);
1168 goto nla_put_failure;
1169 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1171 goto nla_put_failure;
1172 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1173 c->limits[j].types))
1174 goto nla_put_failure;
1175 nla_nest_end(msg, nl_limit);
1178 nla_nest_end(msg, nl_limits);
1180 if (c->beacon_int_infra_match &&
1181 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1182 goto nla_put_failure;
1183 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1184 c->num_different_channels) ||
1185 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1187 goto nla_put_failure;
1189 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1190 c->radar_detect_widths) ||
1191 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1192 c->radar_detect_regions)))
1193 goto nla_put_failure;
1194 if (c->beacon_int_min_gcd &&
1195 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1196 c->beacon_int_min_gcd))
1197 goto nla_put_failure;
1199 nla_nest_end(msg, nl_combi);
1202 nla_nest_end(msg, nl_combis);
1210 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1211 struct sk_buff *msg)
1213 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1214 struct nlattr *nl_tcp;
1219 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1223 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1224 tcp->data_payload_max))
1227 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1228 tcp->data_payload_max))
1231 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1234 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1235 sizeof(*tcp->tok), tcp->tok))
1238 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1239 tcp->data_interval_max))
1242 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1243 tcp->wake_payload_max))
1246 nla_nest_end(msg, nl_tcp);
1250 static int nl80211_send_wowlan(struct sk_buff *msg,
1251 struct cfg80211_registered_device *rdev,
1254 struct nlattr *nl_wowlan;
1256 if (!rdev->wiphy.wowlan)
1259 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1263 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1264 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1265 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1266 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1267 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1268 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1269 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1270 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1271 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1272 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1273 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1274 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1275 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1276 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1277 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1278 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1281 if (rdev->wiphy.wowlan->n_patterns) {
1282 struct nl80211_pattern_support pat = {
1283 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1284 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1285 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1286 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1289 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1294 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1295 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1296 rdev->wiphy.wowlan->max_nd_match_sets))
1299 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1302 nla_nest_end(msg, nl_wowlan);
1308 static int nl80211_send_coalesce(struct sk_buff *msg,
1309 struct cfg80211_registered_device *rdev)
1311 struct nl80211_coalesce_rule_support rule;
1313 if (!rdev->wiphy.coalesce)
1316 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1317 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1318 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1319 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1320 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1321 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1323 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1330 nl80211_send_iftype_data(struct sk_buff *msg,
1331 const struct ieee80211_sband_iftype_data *iftdata)
1333 const struct ieee80211_sta_he_cap *he_cap = &iftdata->he_cap;
1335 if (nl80211_put_iftypes(msg, NL80211_BAND_IFTYPE_ATTR_IFTYPES,
1336 iftdata->types_mask))
1339 if (he_cap->has_he) {
1340 if (nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC,
1341 sizeof(he_cap->he_cap_elem.mac_cap_info),
1342 he_cap->he_cap_elem.mac_cap_info) ||
1343 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY,
1344 sizeof(he_cap->he_cap_elem.phy_cap_info),
1345 he_cap->he_cap_elem.phy_cap_info) ||
1346 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET,
1347 sizeof(he_cap->he_mcs_nss_supp),
1348 &he_cap->he_mcs_nss_supp) ||
1349 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE,
1350 sizeof(he_cap->ppe_thres), he_cap->ppe_thres))
1357 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1358 struct ieee80211_supported_band *sband)
1360 struct nlattr *nl_rates, *nl_rate;
1361 struct ieee80211_rate *rate;
1365 if (sband->ht_cap.ht_supported &&
1366 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1367 sizeof(sband->ht_cap.mcs),
1368 &sband->ht_cap.mcs) ||
1369 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1370 sband->ht_cap.cap) ||
1371 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1372 sband->ht_cap.ampdu_factor) ||
1373 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1374 sband->ht_cap.ampdu_density)))
1378 if (sband->vht_cap.vht_supported &&
1379 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1380 sizeof(sband->vht_cap.vht_mcs),
1381 &sband->vht_cap.vht_mcs) ||
1382 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1383 sband->vht_cap.cap)))
1386 if (sband->n_iftype_data) {
1387 struct nlattr *nl_iftype_data =
1388 nla_nest_start(msg, NL80211_BAND_ATTR_IFTYPE_DATA);
1391 if (!nl_iftype_data)
1394 for (i = 0; i < sband->n_iftype_data; i++) {
1395 struct nlattr *iftdata;
1397 iftdata = nla_nest_start(msg, i + 1);
1401 err = nl80211_send_iftype_data(msg,
1402 &sband->iftype_data[i]);
1406 nla_nest_end(msg, iftdata);
1409 nla_nest_end(msg, nl_iftype_data);
1413 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1417 for (i = 0; i < sband->n_bitrates; i++) {
1418 nl_rate = nla_nest_start(msg, i);
1422 rate = &sband->bitrates[i];
1423 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1426 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1428 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1431 nla_nest_end(msg, nl_rate);
1434 nla_nest_end(msg, nl_rates);
1440 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1441 const struct ieee80211_txrx_stypes *mgmt_stypes)
1444 struct nlattr *nl_ftypes, *nl_ifs;
1445 enum nl80211_iftype ift;
1451 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1455 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1456 nl_ftypes = nla_nest_start(msg, ift);
1460 stypes = mgmt_stypes[ift].tx;
1463 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1464 (i << 4) | IEEE80211_FTYPE_MGMT))
1469 nla_nest_end(msg, nl_ftypes);
1472 nla_nest_end(msg, nl_ifs);
1474 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1478 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1479 nl_ftypes = nla_nest_start(msg, ift);
1483 stypes = mgmt_stypes[ift].rx;
1486 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1487 (i << 4) | IEEE80211_FTYPE_MGMT))
1492 nla_nest_end(msg, nl_ftypes);
1494 nla_nest_end(msg, nl_ifs);
1499 #define CMD(op, n) \
1501 if (rdev->ops->op) { \
1503 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1504 goto nla_put_failure; \
1508 static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1509 struct sk_buff *msg)
1514 * do *NOT* add anything into this function, new things need to be
1515 * advertised only to new versions of userspace that can deal with
1516 * the split (and they can't possibly care about new features...
1518 CMD(add_virtual_intf, NEW_INTERFACE);
1519 CMD(change_virtual_intf, SET_INTERFACE);
1520 CMD(add_key, NEW_KEY);
1521 CMD(start_ap, START_AP);
1522 CMD(add_station, NEW_STATION);
1523 CMD(add_mpath, NEW_MPATH);
1524 CMD(update_mesh_config, SET_MESH_CONFIG);
1525 CMD(change_bss, SET_BSS);
1526 CMD(auth, AUTHENTICATE);
1527 CMD(assoc, ASSOCIATE);
1528 CMD(deauth, DEAUTHENTICATE);
1529 CMD(disassoc, DISASSOCIATE);
1530 CMD(join_ibss, JOIN_IBSS);
1531 CMD(join_mesh, JOIN_MESH);
1532 CMD(set_pmksa, SET_PMKSA);
1533 CMD(del_pmksa, DEL_PMKSA);
1534 CMD(flush_pmksa, FLUSH_PMKSA);
1535 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1536 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1537 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1538 CMD(mgmt_tx, FRAME);
1539 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1540 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1542 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1543 goto nla_put_failure;
1545 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1546 rdev->ops->join_mesh) {
1548 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1549 goto nla_put_failure;
1551 CMD(set_wds_peer, SET_WDS_PEER);
1552 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1553 CMD(tdls_mgmt, TDLS_MGMT);
1554 CMD(tdls_oper, TDLS_OPER);
1556 if (rdev->wiphy.max_sched_scan_reqs)
1557 CMD(sched_scan_start, START_SCHED_SCAN);
1558 CMD(probe_client, PROBE_CLIENT);
1559 CMD(set_noack_map, SET_NOACK_MAP);
1560 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1562 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1563 goto nla_put_failure;
1565 CMD(start_p2p_device, START_P2P_DEVICE);
1566 CMD(set_mcast_rate, SET_MCAST_RATE);
1567 #ifdef CONFIG_NL80211_TESTMODE
1568 CMD(testmode_cmd, TESTMODE);
1571 if (rdev->ops->connect || rdev->ops->auth) {
1573 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1574 goto nla_put_failure;
1577 if (rdev->ops->disconnect || rdev->ops->deauth) {
1579 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1580 goto nla_put_failure;
1588 struct nl80211_dump_wiphy_state {
1591 long split_start, band_start, chan_start, capa_start;
1595 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1596 enum nl80211_commands cmd,
1597 struct sk_buff *msg, u32 portid, u32 seq,
1598 int flags, struct nl80211_dump_wiphy_state *state)
1601 struct nlattr *nl_bands, *nl_band;
1602 struct nlattr *nl_freqs, *nl_freq;
1603 struct nlattr *nl_cmds;
1604 enum nl80211_band band;
1605 struct ieee80211_channel *chan;
1607 const struct ieee80211_txrx_stypes *mgmt_stypes =
1608 rdev->wiphy.mgmt_stypes;
1611 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1615 if (WARN_ON(!state))
1618 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1619 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1620 wiphy_name(&rdev->wiphy)) ||
1621 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1622 cfg80211_rdev_list_generation))
1623 goto nla_put_failure;
1625 if (cmd != NL80211_CMD_NEW_WIPHY)
1628 switch (state->split_start) {
1630 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1631 rdev->wiphy.retry_short) ||
1632 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1633 rdev->wiphy.retry_long) ||
1634 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1635 rdev->wiphy.frag_threshold) ||
1636 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1637 rdev->wiphy.rts_threshold) ||
1638 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1639 rdev->wiphy.coverage_class) ||
1640 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1641 rdev->wiphy.max_scan_ssids) ||
1642 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1643 rdev->wiphy.max_sched_scan_ssids) ||
1644 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1645 rdev->wiphy.max_scan_ie_len) ||
1646 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1647 rdev->wiphy.max_sched_scan_ie_len) ||
1648 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1649 rdev->wiphy.max_match_sets) ||
1650 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1651 rdev->wiphy.max_sched_scan_plans) ||
1652 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1653 rdev->wiphy.max_sched_scan_plan_interval) ||
1654 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1655 rdev->wiphy.max_sched_scan_plan_iterations))
1656 goto nla_put_failure;
1658 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1659 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1660 goto nla_put_failure;
1661 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1662 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1663 goto nla_put_failure;
1664 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1665 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1666 goto nla_put_failure;
1667 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1668 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1669 goto nla_put_failure;
1670 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1671 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1672 goto nla_put_failure;
1673 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1674 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1675 goto nla_put_failure;
1676 state->split_start++;
1680 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1681 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1682 rdev->wiphy.cipher_suites))
1683 goto nla_put_failure;
1685 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1686 rdev->wiphy.max_num_pmkids))
1687 goto nla_put_failure;
1689 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1690 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1691 goto nla_put_failure;
1693 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1694 rdev->wiphy.available_antennas_tx) ||
1695 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1696 rdev->wiphy.available_antennas_rx))
1697 goto nla_put_failure;
1699 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1700 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1701 rdev->wiphy.probe_resp_offload))
1702 goto nla_put_failure;
1704 if ((rdev->wiphy.available_antennas_tx ||
1705 rdev->wiphy.available_antennas_rx) &&
1706 rdev->ops->get_antenna) {
1707 u32 tx_ant = 0, rx_ant = 0;
1710 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1712 if (nla_put_u32(msg,
1713 NL80211_ATTR_WIPHY_ANTENNA_TX,
1716 NL80211_ATTR_WIPHY_ANTENNA_RX,
1718 goto nla_put_failure;
1722 state->split_start++;
1726 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1727 rdev->wiphy.interface_modes))
1728 goto nla_put_failure;
1729 state->split_start++;
1733 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1735 goto nla_put_failure;
1737 for (band = state->band_start;
1738 band < NUM_NL80211_BANDS; band++) {
1739 struct ieee80211_supported_band *sband;
1741 sband = rdev->wiphy.bands[band];
1746 nl_band = nla_nest_start(msg, band);
1748 goto nla_put_failure;
1750 switch (state->chan_start) {
1752 if (nl80211_send_band_rateinfo(msg, sband))
1753 goto nla_put_failure;
1754 state->chan_start++;
1758 /* add frequencies */
1759 nl_freqs = nla_nest_start(
1760 msg, NL80211_BAND_ATTR_FREQS);
1762 goto nla_put_failure;
1764 for (i = state->chan_start - 1;
1765 i < sband->n_channels;
1767 nl_freq = nla_nest_start(msg, i);
1769 goto nla_put_failure;
1771 chan = &sband->channels[i];
1773 if (nl80211_msg_put_channel(
1774 msg, &rdev->wiphy, chan,
1776 goto nla_put_failure;
1778 nla_nest_end(msg, nl_freq);
1782 if (i < sband->n_channels)
1783 state->chan_start = i + 2;
1785 state->chan_start = 0;
1786 nla_nest_end(msg, nl_freqs);
1789 nla_nest_end(msg, nl_band);
1792 /* start again here */
1793 if (state->chan_start)
1798 nla_nest_end(msg, nl_bands);
1800 if (band < NUM_NL80211_BANDS)
1801 state->band_start = band + 1;
1803 state->band_start = 0;
1805 /* if bands & channels are done, continue outside */
1806 if (state->band_start == 0 && state->chan_start == 0)
1807 state->split_start++;
1811 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1813 goto nla_put_failure;
1815 i = nl80211_add_commands_unsplit(rdev, msg);
1817 goto nla_put_failure;
1819 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1820 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1821 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1822 CMD(channel_switch, CHANNEL_SWITCH);
1823 CMD(set_qos_map, SET_QOS_MAP);
1824 if (rdev->wiphy.features &
1825 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1826 CMD(add_tx_ts, ADD_TX_TS);
1827 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
1828 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
1832 nla_nest_end(msg, nl_cmds);
1833 state->split_start++;
1837 if (rdev->ops->remain_on_channel &&
1838 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1840 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1841 rdev->wiphy.max_remain_on_channel_duration))
1842 goto nla_put_failure;
1844 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1845 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1846 goto nla_put_failure;
1848 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1849 goto nla_put_failure;
1850 state->split_start++;
1855 if (nl80211_send_wowlan(msg, rdev, state->split))
1856 goto nla_put_failure;
1857 state->split_start++;
1861 state->split_start++;
1864 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1865 rdev->wiphy.software_iftypes))
1866 goto nla_put_failure;
1868 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1870 goto nla_put_failure;
1872 state->split_start++;
1876 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1877 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1878 rdev->wiphy.ap_sme_capa))
1879 goto nla_put_failure;
1881 features = rdev->wiphy.features;
1883 * We can only add the per-channel limit information if the
1884 * dump is split, otherwise it makes it too big. Therefore
1885 * only advertise it in that case.
1888 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1889 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1890 goto nla_put_failure;
1892 if (rdev->wiphy.ht_capa_mod_mask &&
1893 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1894 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1895 rdev->wiphy.ht_capa_mod_mask))
1896 goto nla_put_failure;
1898 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1899 rdev->wiphy.max_acl_mac_addrs &&
1900 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1901 rdev->wiphy.max_acl_mac_addrs))
1902 goto nla_put_failure;
1905 * Any information below this point is only available to
1906 * applications that can deal with it being split. This
1907 * helps ensure that newly added capabilities don't break
1908 * older tools by overrunning their buffers.
1910 * We still increment split_start so that in the split
1911 * case we'll continue with more data in the next round,
1912 * but break unconditionally so unsplit data stops here.
1914 state->split_start++;
1917 if (rdev->wiphy.extended_capabilities &&
1918 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1919 rdev->wiphy.extended_capabilities_len,
1920 rdev->wiphy.extended_capabilities) ||
1921 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1922 rdev->wiphy.extended_capabilities_len,
1923 rdev->wiphy.extended_capabilities_mask)))
1924 goto nla_put_failure;
1926 if (rdev->wiphy.vht_capa_mod_mask &&
1927 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1928 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1929 rdev->wiphy.vht_capa_mod_mask))
1930 goto nla_put_failure;
1932 state->split_start++;
1935 if (nl80211_send_coalesce(msg, rdev))
1936 goto nla_put_failure;
1938 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1939 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1940 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1941 goto nla_put_failure;
1943 if (rdev->wiphy.max_ap_assoc_sta &&
1944 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1945 rdev->wiphy.max_ap_assoc_sta))
1946 goto nla_put_failure;
1948 state->split_start++;
1951 if (rdev->wiphy.n_vendor_commands) {
1952 const struct nl80211_vendor_cmd_info *info;
1953 struct nlattr *nested;
1955 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1957 goto nla_put_failure;
1959 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1960 info = &rdev->wiphy.vendor_commands[i].info;
1961 if (nla_put(msg, i + 1, sizeof(*info), info))
1962 goto nla_put_failure;
1964 nla_nest_end(msg, nested);
1967 if (rdev->wiphy.n_vendor_events) {
1968 const struct nl80211_vendor_cmd_info *info;
1969 struct nlattr *nested;
1971 nested = nla_nest_start(msg,
1972 NL80211_ATTR_VENDOR_EVENTS);
1974 goto nla_put_failure;
1976 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1977 info = &rdev->wiphy.vendor_events[i];
1978 if (nla_put(msg, i + 1, sizeof(*info), info))
1979 goto nla_put_failure;
1981 nla_nest_end(msg, nested);
1983 state->split_start++;
1986 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1987 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1988 rdev->wiphy.max_num_csa_counters))
1989 goto nla_put_failure;
1991 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1992 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1993 goto nla_put_failure;
1995 if (rdev->wiphy.max_sched_scan_reqs &&
1996 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
1997 rdev->wiphy.max_sched_scan_reqs))
1998 goto nla_put_failure;
2000 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
2001 sizeof(rdev->wiphy.ext_features),
2002 rdev->wiphy.ext_features))
2003 goto nla_put_failure;
2005 if (rdev->wiphy.bss_select_support) {
2006 struct nlattr *nested;
2007 u32 bss_select_support = rdev->wiphy.bss_select_support;
2009 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
2011 goto nla_put_failure;
2014 while (bss_select_support) {
2015 if ((bss_select_support & 1) &&
2016 nla_put_flag(msg, i))
2017 goto nla_put_failure;
2019 bss_select_support >>= 1;
2021 nla_nest_end(msg, nested);
2024 state->split_start++;
2027 if (rdev->wiphy.num_iftype_ext_capab &&
2028 rdev->wiphy.iftype_ext_capab) {
2029 struct nlattr *nested_ext_capab, *nested;
2031 nested = nla_nest_start(msg,
2032 NL80211_ATTR_IFTYPE_EXT_CAPA);
2034 goto nla_put_failure;
2036 for (i = state->capa_start;
2037 i < rdev->wiphy.num_iftype_ext_capab; i++) {
2038 const struct wiphy_iftype_ext_capab *capab;
2040 capab = &rdev->wiphy.iftype_ext_capab[i];
2042 nested_ext_capab = nla_nest_start(msg, i);
2043 if (!nested_ext_capab ||
2044 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
2046 nla_put(msg, NL80211_ATTR_EXT_CAPA,
2047 capab->extended_capabilities_len,
2048 capab->extended_capabilities) ||
2049 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
2050 capab->extended_capabilities_len,
2051 capab->extended_capabilities_mask))
2052 goto nla_put_failure;
2054 nla_nest_end(msg, nested_ext_capab);
2058 nla_nest_end(msg, nested);
2059 if (i < rdev->wiphy.num_iftype_ext_capab) {
2060 state->capa_start = i + 1;
2065 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
2066 rdev->wiphy.nan_supported_bands))
2067 goto nla_put_failure;
2069 if (wiphy_ext_feature_isset(&rdev->wiphy,
2070 NL80211_EXT_FEATURE_TXQS)) {
2071 struct cfg80211_txq_stats txqstats = {};
2074 res = rdev_get_txq_stats(rdev, NULL, &txqstats);
2076 !nl80211_put_txq_stats(msg, &txqstats,
2077 NL80211_ATTR_TXQ_STATS))
2078 goto nla_put_failure;
2080 if (nla_put_u32(msg, NL80211_ATTR_TXQ_LIMIT,
2081 rdev->wiphy.txq_limit))
2082 goto nla_put_failure;
2083 if (nla_put_u32(msg, NL80211_ATTR_TXQ_MEMORY_LIMIT,
2084 rdev->wiphy.txq_memory_limit))
2085 goto nla_put_failure;
2086 if (nla_put_u32(msg, NL80211_ATTR_TXQ_QUANTUM,
2087 rdev->wiphy.txq_quantum))
2088 goto nla_put_failure;
2092 state->split_start = 0;
2096 genlmsg_end(msg, hdr);
2100 genlmsg_cancel(msg, hdr);
2104 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
2105 struct netlink_callback *cb,
2106 struct nl80211_dump_wiphy_state *state)
2108 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
2109 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
2110 nl80211_fam.maxattr, nl80211_policy, NULL);
2111 /* ignore parse errors for backward compatibility */
2115 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
2116 if (tb[NL80211_ATTR_WIPHY])
2117 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
2118 if (tb[NL80211_ATTR_WDEV])
2119 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
2120 if (tb[NL80211_ATTR_IFINDEX]) {
2121 struct net_device *netdev;
2122 struct cfg80211_registered_device *rdev;
2123 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2125 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
2128 if (netdev->ieee80211_ptr) {
2129 rdev = wiphy_to_rdev(
2130 netdev->ieee80211_ptr->wiphy);
2131 state->filter_wiphy = rdev->wiphy_idx;
2138 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
2141 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
2142 struct cfg80211_registered_device *rdev;
2146 state = kzalloc(sizeof(*state), GFP_KERNEL);
2151 state->filter_wiphy = -1;
2152 ret = nl80211_dump_wiphy_parse(skb, cb, state);
2158 cb->args[0] = (long)state;
2161 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2162 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2164 if (++idx <= state->start)
2166 if (state->filter_wiphy != -1 &&
2167 state->filter_wiphy != rdev->wiphy_idx)
2169 /* attempt to fit multiple wiphy data chunks into the skb */
2171 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
2173 NETLINK_CB(cb->skb).portid,
2175 NLM_F_MULTI, state);
2178 * If sending the wiphy data didn't fit (ENOBUFS
2179 * or EMSGSIZE returned), this SKB is still
2180 * empty (so it's not too big because another
2181 * wiphy dataset is already in the skb) and
2182 * we've not tried to adjust the dump allocation
2183 * yet ... then adjust the alloc size to be
2184 * bigger, and return 1 but with the empty skb.
2185 * This results in an empty message being RX'ed
2186 * in userspace, but that is ignored.
2188 * We can then retry with the larger buffer.
2190 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
2191 !skb->len && !state->split &&
2192 cb->min_dump_alloc < 4096) {
2193 cb->min_dump_alloc = 4096;
2194 state->split_start = 0;
2201 } while (state->split_start > 0);
2211 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2213 kfree((void *)cb->args[0]);
2217 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2219 struct sk_buff *msg;
2220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2221 struct nl80211_dump_wiphy_state state = {};
2223 msg = nlmsg_new(4096, GFP_KERNEL);
2227 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2228 info->snd_portid, info->snd_seq, 0,
2234 return genlmsg_reply(msg, info);
2237 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2238 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2239 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2240 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2241 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2242 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2245 static int parse_txq_params(struct nlattr *tb[],
2246 struct ieee80211_txq_params *txq_params)
2250 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
2251 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2252 !tb[NL80211_TXQ_ATTR_AIFS])
2255 ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
2256 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2257 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2258 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2259 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2261 if (ac >= NL80211_NUM_ACS)
2263 txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS);
2267 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2270 * You can only set the channel explicitly for WDS interfaces,
2271 * all others have their channel managed via their respective
2272 * "establish a connection" command (connect, join, ...)
2274 * For AP/GO and mesh mode, the channel can be set with the
2275 * channel userspace API, but is only stored and passed to the
2276 * low-level driver when the AP starts or the mesh is joined.
2277 * This is for backward compatibility, userspace can also give
2278 * the channel in the start-ap or join-mesh commands instead.
2280 * Monitors are special as they are normally slaved to
2281 * whatever else is going on, so they have their own special
2282 * operation to set the monitor channel if possible.
2285 wdev->iftype == NL80211_IFTYPE_AP ||
2286 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
2287 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2288 wdev->iftype == NL80211_IFTYPE_P2P_GO;
2291 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2292 struct genl_info *info,
2293 struct cfg80211_chan_def *chandef)
2297 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2300 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2302 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
2303 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2304 chandef->center_freq1 = control_freq;
2305 chandef->center_freq2 = 0;
2307 /* Primary channel not allowed */
2308 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2311 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2312 enum nl80211_channel_type chantype;
2314 chantype = nla_get_u32(
2315 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2318 case NL80211_CHAN_NO_HT:
2319 case NL80211_CHAN_HT20:
2320 case NL80211_CHAN_HT40PLUS:
2321 case NL80211_CHAN_HT40MINUS:
2322 cfg80211_chandef_create(chandef, chandef->chan,
2324 /* user input for center_freq is incorrect */
2325 if (info->attrs[NL80211_ATTR_CENTER_FREQ1] &&
2326 chandef->center_freq1 != nla_get_u32(
2327 info->attrs[NL80211_ATTR_CENTER_FREQ1]))
2329 /* center_freq2 must be zero */
2330 if (info->attrs[NL80211_ATTR_CENTER_FREQ2] &&
2331 nla_get_u32(info->attrs[NL80211_ATTR_CENTER_FREQ2]))
2337 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2339 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2340 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2341 chandef->center_freq1 =
2343 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2344 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2345 chandef->center_freq2 =
2347 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2350 if (!cfg80211_chandef_valid(chandef))
2353 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2354 IEEE80211_CHAN_DISABLED))
2357 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2358 chandef->width == NL80211_CHAN_WIDTH_10) &&
2359 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2365 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2366 struct net_device *dev,
2367 struct genl_info *info)
2369 struct cfg80211_chan_def chandef;
2371 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2372 struct wireless_dev *wdev = NULL;
2375 wdev = dev->ieee80211_ptr;
2376 if (!nl80211_can_set_dev_channel(wdev))
2379 iftype = wdev->iftype;
2381 result = nl80211_parse_chandef(rdev, info, &chandef);
2386 case NL80211_IFTYPE_AP:
2387 case NL80211_IFTYPE_P2P_GO:
2388 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2393 if (wdev->beacon_interval) {
2394 if (!dev || !rdev->ops->set_ap_chanwidth ||
2395 !(rdev->wiphy.features &
2396 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2401 /* Only allow dynamic channel width changes */
2402 if (chandef.chan != wdev->preset_chandef.chan) {
2406 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2410 wdev->preset_chandef = chandef;
2413 case NL80211_IFTYPE_MESH_POINT:
2414 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2416 case NL80211_IFTYPE_MONITOR:
2417 result = cfg80211_set_monitor_channel(rdev, &chandef);
2426 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2429 struct net_device *netdev = info->user_ptr[1];
2431 return __nl80211_set_channel(rdev, netdev, info);
2434 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2437 struct net_device *dev = info->user_ptr[1];
2438 struct wireless_dev *wdev = dev->ieee80211_ptr;
2441 if (!info->attrs[NL80211_ATTR_MAC])
2444 if (netif_running(dev))
2447 if (!rdev->ops->set_wds_peer)
2450 if (wdev->iftype != NL80211_IFTYPE_WDS)
2453 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2454 return rdev_set_wds_peer(rdev, dev, bssid);
2457 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2459 struct cfg80211_registered_device *rdev;
2460 struct net_device *netdev = NULL;
2461 struct wireless_dev *wdev;
2462 int result = 0, rem_txq_params = 0;
2463 struct nlattr *nl_txq_params;
2465 u8 retry_short = 0, retry_long = 0;
2466 u32 frag_threshold = 0, rts_threshold = 0;
2467 u8 coverage_class = 0;
2468 u32 txq_limit = 0, txq_memory_limit = 0, txq_quantum = 0;
2473 * Try to find the wiphy and netdev. Normally this
2474 * function shouldn't need the netdev, but this is
2475 * done for backward compatibility -- previously
2476 * setting the channel was done per wiphy, but now
2477 * it is per netdev. Previous userland like hostapd
2478 * also passed a netdev to set_wiphy, so that it is
2479 * possible to let that go to the right netdev!
2482 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2483 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2485 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2486 if (netdev && netdev->ieee80211_ptr)
2487 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2493 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2496 return PTR_ERR(rdev);
2501 wdev = netdev->ieee80211_ptr;
2504 * end workaround code, by now the rdev is available
2505 * and locked, and wdev may or may not be NULL.
2508 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2509 result = cfg80211_dev_rename(
2510 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2515 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2516 struct ieee80211_txq_params txq_params;
2517 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2519 if (!rdev->ops->set_txq_params)
2525 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2526 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2529 if (!netif_running(netdev))
2532 nla_for_each_nested(nl_txq_params,
2533 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2535 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2541 result = parse_txq_params(tb, &txq_params);
2545 result = rdev_set_txq_params(rdev, netdev,
2552 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2553 result = __nl80211_set_channel(
2555 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2561 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2562 struct wireless_dev *txp_wdev = wdev;
2563 enum nl80211_tx_power_setting type;
2566 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2569 if (!rdev->ops->set_tx_power)
2572 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2573 type = nla_get_u32(info->attrs[idx]);
2575 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2576 (type != NL80211_TX_POWER_AUTOMATIC))
2579 if (type != NL80211_TX_POWER_AUTOMATIC) {
2580 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2581 mbm = nla_get_u32(info->attrs[idx]);
2584 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2589 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2590 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2593 if ((!rdev->wiphy.available_antennas_tx &&
2594 !rdev->wiphy.available_antennas_rx) ||
2595 !rdev->ops->set_antenna)
2598 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2599 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2601 /* reject antenna configurations which don't match the
2602 * available antenna masks, except for the "all" mask */
2603 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2604 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2607 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2608 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2610 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2617 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2618 retry_short = nla_get_u8(
2619 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2620 if (retry_short == 0)
2623 changed |= WIPHY_PARAM_RETRY_SHORT;
2626 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2627 retry_long = nla_get_u8(
2628 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2629 if (retry_long == 0)
2632 changed |= WIPHY_PARAM_RETRY_LONG;
2635 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2636 frag_threshold = nla_get_u32(
2637 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2638 if (frag_threshold < 256)
2641 if (frag_threshold != (u32) -1) {
2643 * Fragments (apart from the last one) are required to
2644 * have even length. Make the fragmentation code
2645 * simpler by stripping LSB should someone try to use
2646 * odd threshold value.
2648 frag_threshold &= ~0x1;
2650 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2653 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2654 rts_threshold = nla_get_u32(
2655 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2656 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2659 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2660 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2663 coverage_class = nla_get_u8(
2664 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2665 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2668 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2669 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2672 changed |= WIPHY_PARAM_DYN_ACK;
2675 if (info->attrs[NL80211_ATTR_TXQ_LIMIT]) {
2676 if (!wiphy_ext_feature_isset(&rdev->wiphy,
2677 NL80211_EXT_FEATURE_TXQS))
2679 txq_limit = nla_get_u32(
2680 info->attrs[NL80211_ATTR_TXQ_LIMIT]);
2681 changed |= WIPHY_PARAM_TXQ_LIMIT;
2684 if (info->attrs[NL80211_ATTR_TXQ_MEMORY_LIMIT]) {
2685 if (!wiphy_ext_feature_isset(&rdev->wiphy,
2686 NL80211_EXT_FEATURE_TXQS))
2688 txq_memory_limit = nla_get_u32(
2689 info->attrs[NL80211_ATTR_TXQ_MEMORY_LIMIT]);
2690 changed |= WIPHY_PARAM_TXQ_MEMORY_LIMIT;
2693 if (info->attrs[NL80211_ATTR_TXQ_QUANTUM]) {
2694 if (!wiphy_ext_feature_isset(&rdev->wiphy,
2695 NL80211_EXT_FEATURE_TXQS))
2697 txq_quantum = nla_get_u32(
2698 info->attrs[NL80211_ATTR_TXQ_QUANTUM]);
2699 changed |= WIPHY_PARAM_TXQ_QUANTUM;
2703 u8 old_retry_short, old_retry_long;
2704 u32 old_frag_threshold, old_rts_threshold;
2705 u8 old_coverage_class;
2706 u32 old_txq_limit, old_txq_memory_limit, old_txq_quantum;
2708 if (!rdev->ops->set_wiphy_params)
2711 old_retry_short = rdev->wiphy.retry_short;
2712 old_retry_long = rdev->wiphy.retry_long;
2713 old_frag_threshold = rdev->wiphy.frag_threshold;
2714 old_rts_threshold = rdev->wiphy.rts_threshold;
2715 old_coverage_class = rdev->wiphy.coverage_class;
2716 old_txq_limit = rdev->wiphy.txq_limit;
2717 old_txq_memory_limit = rdev->wiphy.txq_memory_limit;
2718 old_txq_quantum = rdev->wiphy.txq_quantum;
2720 if (changed & WIPHY_PARAM_RETRY_SHORT)
2721 rdev->wiphy.retry_short = retry_short;
2722 if (changed & WIPHY_PARAM_RETRY_LONG)
2723 rdev->wiphy.retry_long = retry_long;
2724 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2725 rdev->wiphy.frag_threshold = frag_threshold;
2726 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2727 rdev->wiphy.rts_threshold = rts_threshold;
2728 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2729 rdev->wiphy.coverage_class = coverage_class;
2730 if (changed & WIPHY_PARAM_TXQ_LIMIT)
2731 rdev->wiphy.txq_limit = txq_limit;
2732 if (changed & WIPHY_PARAM_TXQ_MEMORY_LIMIT)
2733 rdev->wiphy.txq_memory_limit = txq_memory_limit;
2734 if (changed & WIPHY_PARAM_TXQ_QUANTUM)
2735 rdev->wiphy.txq_quantum = txq_quantum;
2737 result = rdev_set_wiphy_params(rdev, changed);
2739 rdev->wiphy.retry_short = old_retry_short;
2740 rdev->wiphy.retry_long = old_retry_long;
2741 rdev->wiphy.frag_threshold = old_frag_threshold;
2742 rdev->wiphy.rts_threshold = old_rts_threshold;
2743 rdev->wiphy.coverage_class = old_coverage_class;
2744 rdev->wiphy.txq_limit = old_txq_limit;
2745 rdev->wiphy.txq_memory_limit = old_txq_memory_limit;
2746 rdev->wiphy.txq_quantum = old_txq_quantum;
2753 static inline u64 wdev_id(struct wireless_dev *wdev)
2755 return (u64)wdev->identifier |
2756 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2759 static int nl80211_send_chandef(struct sk_buff *msg,
2760 const struct cfg80211_chan_def *chandef)
2762 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2765 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2766 chandef->chan->center_freq))
2768 switch (chandef->width) {
2769 case NL80211_CHAN_WIDTH_20_NOHT:
2770 case NL80211_CHAN_WIDTH_20:
2771 case NL80211_CHAN_WIDTH_40:
2772 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2773 cfg80211_get_chandef_type(chandef)))
2779 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2781 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2783 if (chandef->center_freq2 &&
2784 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2789 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2790 struct cfg80211_registered_device *rdev,
2791 struct wireless_dev *wdev, bool removal)
2793 struct net_device *dev = wdev->netdev;
2794 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2798 cmd = NL80211_CMD_DEL_INTERFACE;
2800 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2805 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2806 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2807 goto nla_put_failure;
2809 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2810 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2811 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2812 NL80211_ATTR_PAD) ||
2813 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2814 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2815 rdev->devlist_generation ^
2816 (cfg80211_rdev_list_generation << 2)) ||
2817 nla_put_u8(msg, NL80211_ATTR_4ADDR, wdev->use_4addr))
2818 goto nla_put_failure;
2820 if (rdev->ops->get_channel) {
2822 struct cfg80211_chan_def chandef;
2824 ret = rdev_get_channel(rdev, wdev, &chandef);
2826 if (nl80211_send_chandef(msg, &chandef))
2827 goto nla_put_failure;
2831 if (rdev->ops->get_tx_power) {
2834 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2836 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2838 goto nla_put_failure;
2842 switch (wdev->iftype) {
2843 case NL80211_IFTYPE_AP:
2844 if (wdev->ssid_len &&
2845 nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2846 goto nla_put_failure_locked;
2848 case NL80211_IFTYPE_STATION:
2849 case NL80211_IFTYPE_P2P_CLIENT:
2850 case NL80211_IFTYPE_ADHOC: {
2852 if (!wdev->current_bss)
2855 ssid_ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
2858 nla_put(msg, NL80211_ATTR_SSID, ssid_ie[1], ssid_ie + 2))
2859 goto nla_put_failure_rcu_locked;
2869 if (rdev->ops->get_txq_stats) {
2870 struct cfg80211_txq_stats txqstats = {};
2871 int ret = rdev_get_txq_stats(rdev, wdev, &txqstats);
2874 !nl80211_put_txq_stats(msg, &txqstats,
2875 NL80211_ATTR_TXQ_STATS))
2876 goto nla_put_failure;
2879 genlmsg_end(msg, hdr);
2882 nla_put_failure_rcu_locked:
2884 nla_put_failure_locked:
2887 genlmsg_cancel(msg, hdr);
2891 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2895 int wp_start = cb->args[0];
2896 int if_start = cb->args[1];
2897 int filter_wiphy = -1;
2898 struct cfg80211_registered_device *rdev;
2899 struct wireless_dev *wdev;
2904 struct nl80211_dump_wiphy_state state = {
2908 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2912 filter_wiphy = state.filter_wiphy;
2915 * if filtering, set cb->args[2] to +1 since 0 is the default
2916 * value needed to determine that parsing is necessary.
2918 if (filter_wiphy >= 0)
2919 cb->args[2] = filter_wiphy + 1;
2922 } else if (cb->args[2] > 0) {
2923 filter_wiphy = cb->args[2] - 1;
2926 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2927 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2929 if (wp_idx < wp_start) {
2934 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2939 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
2940 if (if_idx < if_start) {
2944 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2945 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2946 rdev, wdev, false) < 0) {
2955 cb->args[0] = wp_idx;
2956 cb->args[1] = if_idx;
2965 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2967 struct sk_buff *msg;
2968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2969 struct wireless_dev *wdev = info->user_ptr[1];
2971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2975 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2976 rdev, wdev, false) < 0) {
2981 return genlmsg_reply(msg, info);
2984 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2985 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2986 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2987 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2988 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2989 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2990 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2993 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2995 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
3003 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
3004 mntr_flags_policy, NULL))
3007 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
3009 *mntrflags |= (1<<flag);
3011 *mntrflags |= MONITOR_FLAG_CHANGED;
3016 static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
3017 enum nl80211_iftype type,
3018 struct genl_info *info,
3019 struct vif_params *params)
3021 bool change = false;
3024 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
3025 if (type != NL80211_IFTYPE_MONITOR)
3028 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
3036 if (params->flags & MONITOR_FLAG_ACTIVE &&
3037 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
3040 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
3041 const u8 *mumimo_groups;
3042 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
3044 if (type != NL80211_IFTYPE_MONITOR)
3047 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
3051 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
3053 /* bits 0 and 63 are reserved and must be zero */
3054 if ((mumimo_groups[0] & BIT(0)) ||
3055 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
3058 params->vht_mumimo_groups = mumimo_groups;
3062 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
3063 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
3065 if (type != NL80211_IFTYPE_MONITOR)
3068 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
3071 params->vht_mumimo_follow_addr =
3072 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
3076 return change ? 1 : 0;
3079 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
3080 struct net_device *netdev, u8 use_4addr,
3081 enum nl80211_iftype iftype)
3084 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
3090 case NL80211_IFTYPE_AP_VLAN:
3091 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
3094 case NL80211_IFTYPE_STATION:
3095 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
3105 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
3107 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3108 struct vif_params params;
3110 enum nl80211_iftype otype, ntype;
3111 struct net_device *dev = info->user_ptr[1];
3112 bool change = false;
3114 memset(¶ms, 0, sizeof(params));
3116 otype = ntype = dev->ieee80211_ptr->iftype;
3118 if (info->attrs[NL80211_ATTR_IFTYPE]) {
3119 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
3122 if (ntype > NL80211_IFTYPE_MAX)
3126 if (info->attrs[NL80211_ATTR_MESH_ID]) {
3127 struct wireless_dev *wdev = dev->ieee80211_ptr;
3129 if (ntype != NL80211_IFTYPE_MESH_POINT)
3131 if (netif_running(dev))
3135 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
3136 IEEE80211_MAX_MESH_ID_LEN);
3137 wdev->mesh_id_up_len =
3138 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
3139 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
3140 wdev->mesh_id_up_len);
3144 if (info->attrs[NL80211_ATTR_4ADDR]) {
3145 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
3147 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
3151 params.use_4addr = -1;
3154 err = nl80211_parse_mon_options(rdev, ntype, info, ¶ms);
3161 err = cfg80211_change_iface(rdev, dev, ntype, ¶ms);
3165 if (!err && params.use_4addr != -1)
3166 dev->ieee80211_ptr->use_4addr = params.use_4addr;
3171 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
3173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3174 struct vif_params params;
3175 struct wireless_dev *wdev;
3176 struct sk_buff *msg;
3178 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
3180 /* to avoid failing a new interface creation due to pending removal */
3181 cfg80211_destroy_ifaces(rdev);
3183 memset(¶ms, 0, sizeof(params));
3185 if (!info->attrs[NL80211_ATTR_IFNAME])
3188 if (info->attrs[NL80211_ATTR_IFTYPE]) {
3189 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
3190 if (type > NL80211_IFTYPE_MAX)
3194 if (!rdev->ops->add_virtual_intf ||
3195 !(rdev->wiphy.interface_modes & (1 << type)))
3198 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
3199 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
3200 info->attrs[NL80211_ATTR_MAC]) {
3201 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
3203 if (!is_valid_ether_addr(params.macaddr))
3204 return -EADDRNOTAVAIL;
3207 if (info->attrs[NL80211_ATTR_4ADDR]) {
3208 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
3209 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
3214 err = nl80211_parse_mon_options(rdev, type, info, ¶ms);
3218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3222 wdev = rdev_add_virtual_intf(rdev,
3223 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
3224 NET_NAME_USER, type, ¶ms);
3225 if (WARN_ON(!wdev)) {
3228 } else if (IS_ERR(wdev)) {
3230 return PTR_ERR(wdev);
3233 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
3234 wdev->owner_nlportid = info->snd_portid;
3237 case NL80211_IFTYPE_MESH_POINT:
3238 if (!info->attrs[NL80211_ATTR_MESH_ID])
3241 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
3242 IEEE80211_MAX_MESH_ID_LEN);
3243 wdev->mesh_id_up_len =
3244 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
3245 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
3246 wdev->mesh_id_up_len);
3249 case NL80211_IFTYPE_NAN:
3250 case NL80211_IFTYPE_P2P_DEVICE:
3252 * P2P Device and NAN do not have a netdev, so don't go
3253 * through the netdev notifier and must be added here
3255 mutex_init(&wdev->mtx);
3256 INIT_LIST_HEAD(&wdev->event_list);
3257 spin_lock_init(&wdev->event_lock);
3258 INIT_LIST_HEAD(&wdev->mgmt_registrations);
3259 spin_lock_init(&wdev->mgmt_registrations_lock);
3261 wdev->identifier = ++rdev->wdev_id;
3262 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
3263 rdev->devlist_generation++;
3269 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
3270 rdev, wdev, false) < 0) {
3276 * For wdevs which have no associated netdev object (e.g. of type
3277 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
3278 * For all other types, the event will be generated from the
3282 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
3284 return genlmsg_reply(msg, info);
3287 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
3289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3290 struct wireless_dev *wdev = info->user_ptr[1];
3292 if (!rdev->ops->del_virtual_intf)
3296 * If we remove a wireless device without a netdev then clear
3297 * user_ptr[1] so that nl80211_post_doit won't dereference it
3298 * to check if it needs to do dev_put(). Otherwise it crashes
3299 * since the wdev has been freed, unlike with a netdev where
3300 * we need the dev_put() for the netdev to really be freed.
3303 info->user_ptr[1] = NULL;
3305 return rdev_del_virtual_intf(rdev, wdev);
3308 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3311 struct net_device *dev = info->user_ptr[1];
3314 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3317 if (!rdev->ops->set_noack_map)
3320 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3322 return rdev_set_noack_map(rdev, dev, noack_map);
3325 struct get_key_cookie {
3326 struct sk_buff *msg;
3331 static void get_key_callback(void *c, struct key_params *params)
3334 struct get_key_cookie *cookie = c;
3337 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3338 params->key_len, params->key)) ||
3340 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3341 params->seq_len, params->seq)) ||
3343 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3345 goto nla_put_failure;
3347 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3349 goto nla_put_failure;
3352 nla_put(cookie->msg, NL80211_KEY_DATA,
3353 params->key_len, params->key)) ||
3355 nla_put(cookie->msg, NL80211_KEY_SEQ,
3356 params->seq_len, params->seq)) ||
3358 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3360 goto nla_put_failure;
3362 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3363 goto nla_put_failure;
3365 nla_nest_end(cookie->msg, key);
3372 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3376 struct net_device *dev = info->user_ptr[1];
3378 const u8 *mac_addr = NULL;
3380 struct get_key_cookie cookie = {
3384 struct sk_buff *msg;
3386 if (info->attrs[NL80211_ATTR_KEY_IDX])
3387 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3392 if (info->attrs[NL80211_ATTR_MAC])
3393 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3395 pairwise = !!mac_addr;
3396 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3397 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
3399 if (kt >= NUM_NL80211_KEYTYPES)
3401 if (kt != NL80211_KEYTYPE_GROUP &&
3402 kt != NL80211_KEYTYPE_PAIRWISE)
3404 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3407 if (!rdev->ops->get_key)
3410 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3413 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3417 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3418 NL80211_CMD_NEW_KEY);
3420 goto nla_put_failure;
3423 cookie.idx = key_idx;
3425 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3426 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3427 goto nla_put_failure;
3429 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3430 goto nla_put_failure;
3432 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3439 goto nla_put_failure;
3441 genlmsg_end(msg, hdr);
3442 return genlmsg_reply(msg, info);
3451 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3453 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3454 struct key_parse key;
3456 struct net_device *dev = info->user_ptr[1];
3458 err = nl80211_parse_key(info, &key);
3465 /* only support setting default key */
3466 if (!key.def && !key.defmgmt)
3469 wdev_lock(dev->ieee80211_ptr);
3472 if (!rdev->ops->set_default_key) {
3477 err = nl80211_key_allowed(dev->ieee80211_ptr);
3481 err = rdev_set_default_key(rdev, dev, key.idx,
3482 key.def_uni, key.def_multi);
3487 #ifdef CONFIG_CFG80211_WEXT
3488 dev->ieee80211_ptr->wext.default_key = key.idx;
3491 if (key.def_uni || !key.def_multi) {
3496 if (!rdev->ops->set_default_mgmt_key) {
3501 err = nl80211_key_allowed(dev->ieee80211_ptr);
3505 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3509 #ifdef CONFIG_CFG80211_WEXT
3510 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3515 wdev_unlock(dev->ieee80211_ptr);
3520 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3524 struct net_device *dev = info->user_ptr[1];
3525 struct key_parse key;
3526 const u8 *mac_addr = NULL;
3528 err = nl80211_parse_key(info, &key);
3535 if (info->attrs[NL80211_ATTR_MAC])
3536 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3538 if (key.type == -1) {
3540 key.type = NL80211_KEYTYPE_PAIRWISE;
3542 key.type = NL80211_KEYTYPE_GROUP;
3546 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3547 key.type != NL80211_KEYTYPE_GROUP)
3550 if (!rdev->ops->add_key)
3553 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3554 key.type == NL80211_KEYTYPE_PAIRWISE,
3558 wdev_lock(dev->ieee80211_ptr);
3559 err = nl80211_key_allowed(dev->ieee80211_ptr);
3561 err = rdev_add_key(rdev, dev, key.idx,
3562 key.type == NL80211_KEYTYPE_PAIRWISE,
3564 wdev_unlock(dev->ieee80211_ptr);
3569 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3573 struct net_device *dev = info->user_ptr[1];
3574 u8 *mac_addr = NULL;
3575 struct key_parse key;
3577 err = nl80211_parse_key(info, &key);
3581 if (info->attrs[NL80211_ATTR_MAC])
3582 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3584 if (key.type == -1) {
3586 key.type = NL80211_KEYTYPE_PAIRWISE;
3588 key.type = NL80211_KEYTYPE_GROUP;
3592 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3593 key.type != NL80211_KEYTYPE_GROUP)
3596 if (!rdev->ops->del_key)
3599 wdev_lock(dev->ieee80211_ptr);
3600 err = nl80211_key_allowed(dev->ieee80211_ptr);
3602 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3603 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3607 err = rdev_del_key(rdev, dev, key.idx,
3608 key.type == NL80211_KEYTYPE_PAIRWISE,
3611 #ifdef CONFIG_CFG80211_WEXT
3613 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3614 dev->ieee80211_ptr->wext.default_key = -1;
3615 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3616 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3619 wdev_unlock(dev->ieee80211_ptr);
3624 /* This function returns an error or the number of nested attributes */
3625 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3627 struct nlattr *attr;
3628 int n_entries = 0, tmp;
3630 nla_for_each_nested(attr, nl_attr, tmp) {
3631 if (nla_len(attr) != ETH_ALEN)
3641 * This function parses ACL information and allocates memory for ACL data.
3642 * On successful return, the calling function is responsible to free the
3643 * ACL buffer returned by this function.
3645 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3646 struct genl_info *info)
3648 enum nl80211_acl_policy acl_policy;
3649 struct nlattr *attr;
3650 struct cfg80211_acl_data *acl;
3651 int i = 0, n_entries, tmp;
3653 if (!wiphy->max_acl_mac_addrs)
3654 return ERR_PTR(-EOPNOTSUPP);
3656 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3657 return ERR_PTR(-EINVAL);
3659 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3660 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3661 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3662 return ERR_PTR(-EINVAL);
3664 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3665 return ERR_PTR(-EINVAL);
3667 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3669 return ERR_PTR(n_entries);
3671 if (n_entries > wiphy->max_acl_mac_addrs)
3672 return ERR_PTR(-ENOTSUPP);
3674 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3677 return ERR_PTR(-ENOMEM);
3679 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3680 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3684 acl->n_acl_entries = n_entries;
3685 acl->acl_policy = acl_policy;
3690 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3693 struct net_device *dev = info->user_ptr[1];
3694 struct cfg80211_acl_data *acl;
3697 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3698 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3701 if (!dev->ieee80211_ptr->beacon_interval)
3704 acl = parse_acl_data(&rdev->wiphy, info);
3706 return PTR_ERR(acl);
3708 err = rdev_set_mac_acl(rdev, dev, acl);
3715 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3716 u8 *rates, u8 rates_len)
3721 for (i = 0; i < rates_len; i++) {
3722 int rate = (rates[i] & 0x7f) * 5;
3725 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3726 struct ieee80211_rate *srate =
3727 &sband->bitrates[ridx];
3728 if (rate == srate->bitrate) {
3733 if (ridx == sband->n_bitrates)
3734 return 0; /* rate not found */
3740 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3741 u8 *rates, u8 rates_len,
3742 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3746 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3748 for (i = 0; i < rates_len; i++) {
3751 ridx = rates[i] / 8;
3752 rbit = BIT(rates[i] % 8);
3754 /* check validity */
3755 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3758 /* check availability */
3759 ridx = array_index_nospec(ridx, IEEE80211_HT_MCS_MASK_LEN);
3760 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3769 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3773 switch (vht_mcs_map) {
3774 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3776 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3779 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3782 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3792 static void vht_build_mcs_mask(u16 vht_mcs_map,
3793 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3797 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3798 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3803 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3804 struct nl80211_txrate_vht *txrate,
3805 u16 mcs[NL80211_VHT_NSS_MAX])
3807 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3808 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3811 if (!sband->vht_cap.vht_supported)
3814 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3816 /* Build vht_mcs_mask from VHT capabilities */
3817 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3819 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3820 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3821 mcs[i] = txrate->mcs[i];
3829 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3830 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3831 .len = NL80211_MAX_SUPP_RATES },
3832 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3833 .len = NL80211_MAX_SUPP_HT_RATES },
3834 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3835 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3838 static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3839 struct cfg80211_bitrate_mask *mask)
3841 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3844 struct nlattr *tx_rates;
3845 struct ieee80211_supported_band *sband;
3848 memset(mask, 0, sizeof(*mask));
3849 /* Default to all rates enabled */
3850 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3851 sband = rdev->wiphy.bands[i];
3856 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3857 memcpy(mask->control[i].ht_mcs,
3858 sband->ht_cap.mcs.rx_mask,
3859 sizeof(mask->control[i].ht_mcs));
3861 if (!sband->vht_cap.vht_supported)
3864 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3865 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3868 /* if no rates are given set it back to the defaults */
3869 if (!info->attrs[NL80211_ATTR_TX_RATES])
3872 /* The nested attribute uses enum nl80211_band as the index. This maps
3873 * directly to the enum nl80211_band values used in cfg80211.
3875 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3876 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3877 enum nl80211_band band = nla_type(tx_rates);
3880 if (band < 0 || band >= NUM_NL80211_BANDS)
3882 sband = rdev->wiphy.bands[band];
3885 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
3886 nl80211_txattr_policy, info->extack);
3889 if (tb[NL80211_TXRATE_LEGACY]) {
3890 mask->control[band].legacy = rateset_to_mask(
3892 nla_data(tb[NL80211_TXRATE_LEGACY]),
3893 nla_len(tb[NL80211_TXRATE_LEGACY]));
3894 if ((mask->control[band].legacy == 0) &&
3895 nla_len(tb[NL80211_TXRATE_LEGACY]))
3898 if (tb[NL80211_TXRATE_HT]) {
3899 if (!ht_rateset_to_mask(
3901 nla_data(tb[NL80211_TXRATE_HT]),
3902 nla_len(tb[NL80211_TXRATE_HT]),
3903 mask->control[band].ht_mcs))
3906 if (tb[NL80211_TXRATE_VHT]) {
3907 if (!vht_set_mcs_mask(
3909 nla_data(tb[NL80211_TXRATE_VHT]),
3910 mask->control[band].vht_mcs))
3913 if (tb[NL80211_TXRATE_GI]) {
3914 mask->control[band].gi =
3915 nla_get_u8(tb[NL80211_TXRATE_GI]);
3916 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3920 if (mask->control[band].legacy == 0) {
3921 /* don't allow empty legacy rates if HT or VHT
3922 * are not even supported.
3924 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3925 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3928 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3929 if (mask->control[band].ht_mcs[i])
3932 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3933 if (mask->control[band].vht_mcs[i])
3936 /* legacy and mcs rates may not be both empty */
3945 static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3946 enum nl80211_band band,
3947 struct cfg80211_bitrate_mask *beacon_rate)
3949 u32 count_ht, count_vht, i;
3950 u32 rate = beacon_rate->control[band].legacy;
3952 /* Allow only one rate */
3953 if (hweight32(rate) > 1)
3957 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3958 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
3960 } else if (beacon_rate->control[band].ht_mcs[i]) {
3965 if (count_ht && rate)
3970 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3971 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
3973 } else if (beacon_rate->control[band].vht_mcs[i]) {
3978 if (count_vht && rate)
3982 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3986 !wiphy_ext_feature_isset(&rdev->wiphy,
3987 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3990 !wiphy_ext_feature_isset(&rdev->wiphy,
3991 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3994 !wiphy_ext_feature_isset(&rdev->wiphy,
3995 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
4001 static int nl80211_parse_beacon(struct nlattr *attrs[],
4002 struct cfg80211_beacon_data *bcn)
4004 bool haveinfo = false;
4006 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
4007 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
4008 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
4009 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
4012 memset(bcn, 0, sizeof(*bcn));
4014 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
4015 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
4016 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
4022 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
4023 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
4024 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
4031 if (attrs[NL80211_ATTR_IE]) {
4032 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
4033 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
4036 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
4037 bcn->proberesp_ies =
4038 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
4039 bcn->proberesp_ies_len =
4040 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
4043 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
4044 bcn->assocresp_ies =
4045 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
4046 bcn->assocresp_ies_len =
4047 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
4050 if (attrs[NL80211_ATTR_PROBE_RESP]) {
4051 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
4052 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
4058 static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
4066 for (i = 0; i < rates[1]; i++) {
4067 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
4068 params->ht_required = true;
4069 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
4070 params->vht_required = true;
4075 * Since the nl80211 API didn't include, from the beginning, attributes about
4076 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
4077 * benefit of drivers that rebuild IEs in the firmware.
4079 static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
4081 const struct cfg80211_beacon_data *bcn = ¶ms->beacon;
4082 size_t ies_len = bcn->tail_len;
4083 const u8 *ies = bcn->tail;
4087 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
4088 nl80211_check_ap_rate_selectors(params, rates);
4090 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
4091 nl80211_check_ap_rate_selectors(params, rates);
4093 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
4094 if (cap && cap[1] >= sizeof(*params->ht_cap))
4095 params->ht_cap = (void *)(cap + 2);
4096 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
4097 if (cap && cap[1] >= sizeof(*params->vht_cap))
4098 params->vht_cap = (void *)(cap + 2);
4101 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
4102 struct cfg80211_ap_settings *params)
4104 struct wireless_dev *wdev;
4107 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
4108 if (wdev->iftype != NL80211_IFTYPE_AP &&
4109 wdev->iftype != NL80211_IFTYPE_P2P_GO)
4112 if (!wdev->preset_chandef.chan)
4115 params->chandef = wdev->preset_chandef;
4123 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
4124 enum nl80211_auth_type auth_type,
4125 enum nl80211_commands cmd)
4127 if (auth_type > NL80211_AUTHTYPE_MAX)
4131 case NL80211_CMD_AUTHENTICATE:
4132 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
4133 auth_type == NL80211_AUTHTYPE_SAE)
4135 if (!wiphy_ext_feature_isset(&rdev->wiphy,
4136 NL80211_EXT_FEATURE_FILS_STA) &&
4137 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
4138 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
4139 auth_type == NL80211_AUTHTYPE_FILS_PK))
4142 case NL80211_CMD_CONNECT:
4143 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
4144 auth_type == NL80211_AUTHTYPE_SAE)
4147 /* FILS with SK PFS or PK not supported yet */
4148 if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
4149 auth_type == NL80211_AUTHTYPE_FILS_PK)
4151 if (!wiphy_ext_feature_isset(
4153 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
4154 auth_type == NL80211_AUTHTYPE_FILS_SK)
4157 case NL80211_CMD_START_AP:
4158 /* SAE not supported yet */
4159 if (auth_type == NL80211_AUTHTYPE_SAE)
4161 /* FILS not supported yet */
4162 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
4163 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
4164 auth_type == NL80211_AUTHTYPE_FILS_PK)
4172 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
4174 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4175 struct net_device *dev = info->user_ptr[1];
4176 struct wireless_dev *wdev = dev->ieee80211_ptr;
4177 struct cfg80211_ap_settings params;
4180 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4181 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4184 if (!rdev->ops->start_ap)
4187 if (wdev->beacon_interval)
4190 memset(¶ms, 0, sizeof(params));
4192 /* these are required for START_AP */
4193 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
4194 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4195 !info->attrs[NL80211_ATTR_BEACON_HEAD])
4198 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
4202 params.beacon_interval =
4203 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4204 params.dtim_period =
4205 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
4207 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
4208 params.beacon_interval);
4213 * In theory, some of these attributes should be required here
4214 * but since they were not used when the command was originally
4215 * added, keep them optional for old user space programs to let
4216 * them continue to work with drivers that do not need the
4217 * additional information -- drivers must check!
4219 if (info->attrs[NL80211_ATTR_SSID]) {
4220 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4222 nla_len(info->attrs[NL80211_ATTR_SSID]);
4223 if (params.ssid_len == 0 ||
4224 params.ssid_len > IEEE80211_MAX_SSID_LEN)
4228 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
4229 params.hidden_ssid = nla_get_u32(
4230 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
4231 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
4232 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
4233 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
4237 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4239 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4240 params.auth_type = nla_get_u32(
4241 info->attrs[NL80211_ATTR_AUTH_TYPE]);
4242 if (!nl80211_valid_auth_type(rdev, params.auth_type,
4243 NL80211_CMD_START_AP))
4246 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4248 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
4249 NL80211_MAX_NR_CIPHER_SUITES);
4253 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
4254 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
4256 params.inactivity_timeout = nla_get_u16(
4257 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
4260 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4261 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4263 params.p2p_ctwindow =
4264 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4265 if (params.p2p_ctwindow > 127)
4267 if (params.p2p_ctwindow != 0 &&
4268 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4272 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4275 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4277 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4280 params.p2p_opp_ps = tmp;
4281 if (params.p2p_opp_ps != 0 &&
4282 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4286 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4287 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
4290 } else if (wdev->preset_chandef.chan) {
4291 params.chandef = wdev->preset_chandef;
4292 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
4295 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
4299 if (info->attrs[NL80211_ATTR_TX_RATES]) {
4300 err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate);
4304 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
4305 ¶ms.beacon_rate);
4310 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
4312 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
4313 switch (params.smps_mode) {
4314 case NL80211_SMPS_OFF:
4316 case NL80211_SMPS_STATIC:
4317 if (!(rdev->wiphy.features &
4318 NL80211_FEATURE_STATIC_SMPS))
4321 case NL80211_SMPS_DYNAMIC:
4322 if (!(rdev->wiphy.features &
4323 NL80211_FEATURE_DYNAMIC_SMPS))
4330 params.smps_mode = NL80211_SMPS_OFF;
4333 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4334 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4337 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4338 params.acl = parse_acl_data(&rdev->wiphy, info);
4339 if (IS_ERR(params.acl))
4340 return PTR_ERR(params.acl);
4343 nl80211_calculate_ap_params(¶ms);
4346 err = rdev_start_ap(rdev, dev, ¶ms);
4348 wdev->preset_chandef = params.chandef;
4349 wdev->beacon_interval = params.beacon_interval;
4350 wdev->chandef = params.chandef;
4351 wdev->ssid_len = params.ssid_len;
4352 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
4354 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
4355 wdev->conn_owner_nlportid = info->snd_portid;
4364 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4366 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4367 struct net_device *dev = info->user_ptr[1];
4368 struct wireless_dev *wdev = dev->ieee80211_ptr;
4369 struct cfg80211_beacon_data params;
4372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4373 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4376 if (!rdev->ops->change_beacon)
4379 if (!wdev->beacon_interval)
4382 err = nl80211_parse_beacon(info->attrs, ¶ms);
4387 err = rdev_change_beacon(rdev, dev, ¶ms);
4393 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
4395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4396 struct net_device *dev = info->user_ptr[1];
4398 return cfg80211_stop_ap(rdev, dev, false);
4401 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4402 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4403 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4404 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
4405 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
4406 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
4407 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
4410 static int parse_station_flags(struct genl_info *info,
4411 enum nl80211_iftype iftype,
4412 struct station_parameters *params)
4414 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
4419 * Try parsing the new attribute first so userspace
4420 * can specify both for older kernels.
4422 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4424 struct nl80211_sta_flag_update *sta_flags;
4426 sta_flags = nla_data(nla);
4427 params->sta_flags_mask = sta_flags->mask;
4428 params->sta_flags_set = sta_flags->set;
4429 params->sta_flags_set &= params->sta_flags_mask;
4430 if ((params->sta_flags_mask |
4431 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4436 /* if present, parse the old attribute */
4438 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
4442 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
4443 sta_flags_policy, info->extack))
4447 * Only allow certain flags for interface types so that
4448 * other attributes are silently ignored. Remember that
4449 * this is backward compatibility code with old userspace
4450 * and shouldn't be hit in other cases anyway.
4453 case NL80211_IFTYPE_AP:
4454 case NL80211_IFTYPE_AP_VLAN:
4455 case NL80211_IFTYPE_P2P_GO:
4456 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4457 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4458 BIT(NL80211_STA_FLAG_WME) |
4459 BIT(NL80211_STA_FLAG_MFP);
4461 case NL80211_IFTYPE_P2P_CLIENT:
4462 case NL80211_IFTYPE_STATION:
4463 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4464 BIT(NL80211_STA_FLAG_TDLS_PEER);
4466 case NL80211_IFTYPE_MESH_POINT:
4467 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4468 BIT(NL80211_STA_FLAG_MFP) |
4469 BIT(NL80211_STA_FLAG_AUTHORIZED);
4475 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4477 params->sta_flags_set |= (1<<flag);
4479 /* no longer support new API additions in old API */
4480 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4488 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4491 struct nlattr *rate;
4494 enum nl80211_rate_info rate_flg;
4496 rate = nla_nest_start(msg, attr);
4500 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4501 bitrate = cfg80211_calculate_bitrate(info);
4502 /* report 16-bit bitrate only if we can */
4503 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
4505 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4507 if (bitrate_compat > 0 &&
4508 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4512 case RATE_INFO_BW_5:
4513 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4515 case RATE_INFO_BW_10:
4516 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4521 case RATE_INFO_BW_20:
4524 case RATE_INFO_BW_40:
4525 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4527 case RATE_INFO_BW_80:
4528 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4530 case RATE_INFO_BW_160:
4531 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4533 case RATE_INFO_BW_HE_RU:
4535 WARN_ON(!(info->flags & RATE_INFO_FLAGS_HE_MCS));
4538 if (rate_flg && nla_put_flag(msg, rate_flg))
4541 if (info->flags & RATE_INFO_FLAGS_MCS) {
4542 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4544 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4545 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4547 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4548 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4550 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4552 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4553 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4555 } else if (info->flags & RATE_INFO_FLAGS_HE_MCS) {
4556 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_MCS, info->mcs))
4558 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_NSS, info->nss))
4560 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_GI, info->he_gi))
4562 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_DCM, info->he_dcm))
4564 if (info->bw == RATE_INFO_BW_HE_RU &&
4565 nla_put_u8(msg, NL80211_RATE_INFO_HE_RU_ALLOC,
4570 nla_nest_end(msg, rate);
4574 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4583 attr = nla_nest_start(msg, id);
4587 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4588 if (!(mask & BIT(i)))
4591 if (nla_put_u8(msg, i, signal[i]))
4595 nla_nest_end(msg, attr);
4600 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4602 struct cfg80211_registered_device *rdev,
4603 struct net_device *dev,
4604 const u8 *mac_addr, struct station_info *sinfo)
4607 struct nlattr *sinfoattr, *bss_param;
4609 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
4613 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4614 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4615 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4616 goto nla_put_failure;
4618 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4620 goto nla_put_failure;
4622 #define PUT_SINFO(attr, memb, type) do { \
4623 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
4624 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_ ## attr) && \
4625 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4627 goto nla_put_failure; \
4629 #define PUT_SINFO_U64(attr, memb) do { \
4630 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_ ## attr) && \
4631 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4632 sinfo->memb, NL80211_STA_INFO_PAD)) \
4633 goto nla_put_failure; \
4636 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4637 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4639 if (sinfo->filled & (BIT_ULL(NL80211_STA_INFO_RX_BYTES) |
4640 BIT_ULL(NL80211_STA_INFO_RX_BYTES64)) &&
4641 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
4642 (u32)sinfo->rx_bytes))
4643 goto nla_put_failure;
4645 if (sinfo->filled & (BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
4646 BIT_ULL(NL80211_STA_INFO_TX_BYTES64)) &&
4647 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
4648 (u32)sinfo->tx_bytes))
4649 goto nla_put_failure;
4651 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4652 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
4653 PUT_SINFO(LLID, llid, u16);
4654 PUT_SINFO(PLID, plid, u16);
4655 PUT_SINFO(PLINK_STATE, plink_state, u8);
4656 PUT_SINFO_U64(RX_DURATION, rx_duration);
4658 switch (rdev->wiphy.signal_type) {
4659 case CFG80211_SIGNAL_TYPE_MBM:
4660 PUT_SINFO(SIGNAL, signal, u8);
4661 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
4666 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL)) {
4667 if (!nl80211_put_signal(msg, sinfo->chains,
4668 sinfo->chain_signal,
4669 NL80211_STA_INFO_CHAIN_SIGNAL))
4670 goto nla_put_failure;
4672 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
4673 if (!nl80211_put_signal(msg, sinfo->chains,
4674 sinfo->chain_signal_avg,
4675 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4676 goto nla_put_failure;
4678 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE)) {
4679 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4680 NL80211_STA_INFO_TX_BITRATE))
4681 goto nla_put_failure;
4683 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_RX_BITRATE)) {
4684 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4685 NL80211_STA_INFO_RX_BITRATE))
4686 goto nla_put_failure;
4689 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4690 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4691 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4692 PUT_SINFO(TX_FAILED, tx_failed, u32);
4693 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4694 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4695 PUT_SINFO(LOCAL_PM, local_pm, u32);
4696 PUT_SINFO(PEER_PM, peer_pm, u32);
4697 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4699 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_BSS_PARAM)) {
4700 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4702 goto nla_put_failure;
4704 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4705 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4706 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4707 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4708 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4709 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4710 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4711 sinfo->bss_param.dtim_period) ||
4712 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4713 sinfo->bss_param.beacon_interval))
4714 goto nla_put_failure;
4716 nla_nest_end(msg, bss_param);
4718 if ((sinfo->filled & BIT_ULL(NL80211_STA_INFO_STA_FLAGS)) &&
4719 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4720 sizeof(struct nl80211_sta_flag_update),
4722 goto nla_put_failure;
4724 PUT_SINFO_U64(T_OFFSET, t_offset);
4725 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4726 PUT_SINFO_U64(BEACON_RX, rx_beacon);
4727 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
4728 PUT_SINFO(ACK_SIGNAL, ack_signal, u8);
4729 if (wiphy_ext_feature_isset(&rdev->wiphy,
4730 NL80211_EXT_FEATURE_DATA_ACK_SIGNAL_SUPPORT))
4731 PUT_SINFO(DATA_ACK_SIGNAL_AVG, avg_ack_signal, s8);
4734 #undef PUT_SINFO_U64
4736 if (sinfo->pertid) {
4737 struct nlattr *tidsattr;
4740 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4742 goto nla_put_failure;
4744 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4745 struct cfg80211_tid_stats *tidstats;
4746 struct nlattr *tidattr;
4748 tidstats = &sinfo->pertid[tid];
4750 if (!tidstats->filled)
4753 tidattr = nla_nest_start(msg, tid + 1);
4755 goto nla_put_failure;
4757 #define PUT_TIDVAL_U64(attr, memb) do { \
4758 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
4759 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4760 tidstats->memb, NL80211_TID_STATS_PAD)) \
4761 goto nla_put_failure; \
4764 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4765 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4766 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4767 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
4769 #undef PUT_TIDVAL_U64
4770 if ((tidstats->filled &
4771 BIT(NL80211_TID_STATS_TXQ_STATS)) &&
4772 !nl80211_put_txq_stats(msg, &tidstats->txq_stats,
4773 NL80211_TID_STATS_TXQ_STATS))
4774 goto nla_put_failure;
4776 nla_nest_end(msg, tidattr);
4779 nla_nest_end(msg, tidsattr);
4782 nla_nest_end(msg, sinfoattr);
4784 if (sinfo->assoc_req_ies_len &&
4785 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4786 sinfo->assoc_req_ies))
4787 goto nla_put_failure;
4789 cfg80211_sinfo_release_content(sinfo);
4790 genlmsg_end(msg, hdr);
4794 cfg80211_sinfo_release_content(sinfo);
4795 genlmsg_cancel(msg, hdr);
4799 static int nl80211_dump_station(struct sk_buff *skb,
4800 struct netlink_callback *cb)
4802 struct station_info sinfo;
4803 struct cfg80211_registered_device *rdev;
4804 struct wireless_dev *wdev;
4805 u8 mac_addr[ETH_ALEN];
4806 int sta_idx = cb->args[2];
4810 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4814 if (!wdev->netdev) {
4819 if (!rdev->ops->dump_station) {
4825 memset(&sinfo, 0, sizeof(sinfo));
4826 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
4833 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
4834 NETLINK_CB(cb->skb).portid,
4835 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4836 rdev, wdev->netdev, mac_addr,
4844 cb->args[2] = sta_idx;
4852 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4854 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4855 struct net_device *dev = info->user_ptr[1];
4856 struct station_info sinfo;
4857 struct sk_buff *msg;
4858 u8 *mac_addr = NULL;
4861 memset(&sinfo, 0, sizeof(sinfo));
4863 if (!info->attrs[NL80211_ATTR_MAC])
4866 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4868 if (!rdev->ops->get_station)
4871 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
4875 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4877 cfg80211_sinfo_release_content(&sinfo);
4881 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4882 info->snd_portid, info->snd_seq, 0,
4883 rdev, dev, mac_addr, &sinfo) < 0) {
4888 return genlmsg_reply(msg, info);
4891 int cfg80211_check_station_change(struct wiphy *wiphy,
4892 struct station_parameters *params,
4893 enum cfg80211_station_type statype)
4895 if (params->listen_interval != -1 &&
4896 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4899 if (params->support_p2p_ps != -1 &&
4900 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4904 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4905 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4908 /* When you run into this, adjust the code below for the new flag */
4909 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4912 case CFG80211_STA_MESH_PEER_KERNEL:
4913 case CFG80211_STA_MESH_PEER_USER:
4915 * No ignoring the TDLS flag here -- the userspace mesh
4916 * code doesn't have the bug of including TDLS in the
4919 if (params->sta_flags_mask &
4920 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4921 BIT(NL80211_STA_FLAG_MFP) |
4922 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4925 case CFG80211_STA_TDLS_PEER_SETUP:
4926 case CFG80211_STA_TDLS_PEER_ACTIVE:
4927 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4929 /* ignore since it can't change */
4930 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4933 /* disallow mesh-specific things */
4934 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4936 if (params->local_pm)
4938 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4942 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4943 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4944 /* TDLS can't be set, ... */
4945 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4948 * ... but don't bother the driver with it. This works around
4949 * a hostapd/wpa_supplicant issue -- it always includes the
4950 * TLDS_PEER flag in the mask even for AP mode.
4952 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4955 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4956 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4957 /* reject other things that can't change */
4958 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4960 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4962 if (params->supported_rates)
4964 if (params->ext_capab || params->ht_capa || params->vht_capa ||
4969 if (statype != CFG80211_STA_AP_CLIENT &&
4970 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4976 case CFG80211_STA_AP_MLME_CLIENT:
4977 /* Use this only for authorizing/unauthorizing a station */
4978 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4981 case CFG80211_STA_AP_CLIENT:
4982 case CFG80211_STA_AP_CLIENT_UNASSOC:
4983 /* accept only the listed bits */
4984 if (params->sta_flags_mask &
4985 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4986 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4987 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4988 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4989 BIT(NL80211_STA_FLAG_WME) |
4990 BIT(NL80211_STA_FLAG_MFP)))
4993 /* but authenticated/associated only if driver handles it */
4994 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4995 params->sta_flags_mask &
4996 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4997 BIT(NL80211_STA_FLAG_ASSOCIATED)))
5000 case CFG80211_STA_IBSS:
5001 case CFG80211_STA_AP_STA:
5002 /* reject any changes other than AUTHORIZED */
5003 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
5006 case CFG80211_STA_TDLS_PEER_SETUP:
5007 /* reject any changes other than AUTHORIZED or WME */
5008 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
5009 BIT(NL80211_STA_FLAG_WME)))
5011 /* force (at least) rates when authorizing */
5012 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
5013 !params->supported_rates)
5016 case CFG80211_STA_TDLS_PEER_ACTIVE:
5017 /* reject any changes */
5019 case CFG80211_STA_MESH_PEER_KERNEL:
5020 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
5023 case CFG80211_STA_MESH_PEER_USER:
5024 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
5025 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
5031 * Older kernel versions ignored this attribute entirely, so don't
5032 * reject attempts to update it but mark it as unused instead so the
5033 * driver won't look at the data.
5035 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
5036 statype != CFG80211_STA_TDLS_PEER_SETUP)
5037 params->opmode_notif_used = false;
5041 EXPORT_SYMBOL(cfg80211_check_station_change);
5044 * Get vlan interface making sure it is running and on the right wiphy.
5046 static struct net_device *get_vlan(struct genl_info *info,
5047 struct cfg80211_registered_device *rdev)
5049 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5050 struct net_device *v;
5056 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
5058 return ERR_PTR(-ENODEV);
5060 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
5065 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5066 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5067 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
5072 if (!netif_running(v)) {
5080 return ERR_PTR(ret);
5083 static const struct nla_policy
5084 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
5085 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
5086 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
5089 static int nl80211_parse_sta_wme(struct genl_info *info,
5090 struct station_parameters *params)
5092 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
5096 /* parse WME attributes if present */
5097 if (!info->attrs[NL80211_ATTR_STA_WME])
5100 nla = info->attrs[NL80211_ATTR_STA_WME];
5101 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
5102 nl80211_sta_wme_policy, info->extack);
5106 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
5107 params->uapsd_queues = nla_get_u8(
5108 tb[NL80211_STA_WME_UAPSD_QUEUES]);
5109 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
5112 if (tb[NL80211_STA_WME_MAX_SP])
5113 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
5115 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
5118 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
5123 static int nl80211_parse_sta_channel_info(struct genl_info *info,
5124 struct station_parameters *params)
5126 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
5127 params->supported_channels =
5128 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
5129 params->supported_channels_len =
5130 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
5132 * Need to include at least one (first channel, number of
5133 * channels) tuple for each subband, and must have proper
5134 * tuples for the rest of the data as well.
5136 if (params->supported_channels_len < 2)
5138 if (params->supported_channels_len % 2)
5142 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
5143 params->supported_oper_classes =
5144 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
5145 params->supported_oper_classes_len =
5146 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
5148 * The value of the Length field of the Supported Operating
5149 * Classes element is between 2 and 253.
5151 if (params->supported_oper_classes_len < 2 ||
5152 params->supported_oper_classes_len > 253)
5158 static int nl80211_set_station_tdls(struct genl_info *info,
5159 struct station_parameters *params)
5162 /* Dummy STA entry gets updated once the peer capabilities are known */
5163 if (info->attrs[NL80211_ATTR_PEER_AID])
5164 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
5165 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5167 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5168 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5170 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5171 if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) {
5173 nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
5174 params->he_capa_len =
5175 nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
5177 if (params->he_capa_len < NL80211_HE_MIN_CAPABILITY_LEN)
5181 err = nl80211_parse_sta_channel_info(info, params);
5185 return nl80211_parse_sta_wme(info, params);
5188 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
5190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5191 struct net_device *dev = info->user_ptr[1];
5192 struct station_parameters params;
5196 memset(¶ms, 0, sizeof(params));
5198 if (!rdev->ops->change_station)
5202 * AID and listen_interval properties can be set only for unassociated
5203 * station. Include these parameters here and will check them in
5204 * cfg80211_check_station_change().
5206 if (info->attrs[NL80211_ATTR_STA_AID])
5207 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
5209 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5210 params.listen_interval =
5211 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
5213 params.listen_interval = -1;
5215 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5218 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5219 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5222 params.support_p2p_ps = tmp;
5224 params.support_p2p_ps = -1;
5227 if (!info->attrs[NL80211_ATTR_MAC])
5230 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5232 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
5233 params.supported_rates =
5234 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5235 params.supported_rates_len =
5236 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5239 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5241 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5242 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5245 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5247 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5248 params.ext_capab_len =
5249 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5252 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5255 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
5256 params.plink_action =
5257 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5258 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5262 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
5263 params.plink_state =
5264 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
5265 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
5267 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
5268 params.peer_aid = nla_get_u16(
5269 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
5270 if (params.peer_aid > IEEE80211_MAX_AID)
5273 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
5276 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
5277 enum nl80211_mesh_power_mode pm = nla_get_u32(
5278 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
5280 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
5281 pm > NL80211_MESH_POWER_MAX)
5284 params.local_pm = pm;
5287 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5288 params.opmode_notif_used = true;
5289 params.opmode_notif =
5290 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5293 /* Include parameters for TDLS peer (will check later) */
5294 err = nl80211_set_station_tdls(info, ¶ms);
5298 params.vlan = get_vlan(info, rdev);
5299 if (IS_ERR(params.vlan))
5300 return PTR_ERR(params.vlan);
5302 switch (dev->ieee80211_ptr->iftype) {
5303 case NL80211_IFTYPE_AP:
5304 case NL80211_IFTYPE_AP_VLAN:
5305 case NL80211_IFTYPE_P2P_GO:
5306 case NL80211_IFTYPE_P2P_CLIENT:
5307 case NL80211_IFTYPE_STATION:
5308 case NL80211_IFTYPE_ADHOC:
5309 case NL80211_IFTYPE_MESH_POINT:
5316 /* driver will call cfg80211_check_station_change() */
5317 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
5321 dev_put(params.vlan);
5326 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
5328 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5330 struct net_device *dev = info->user_ptr[1];
5331 struct station_parameters params;
5332 u8 *mac_addr = NULL;
5333 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5334 BIT(NL80211_STA_FLAG_ASSOCIATED);
5336 memset(¶ms, 0, sizeof(params));
5338 if (!rdev->ops->add_station)
5341 if (!info->attrs[NL80211_ATTR_MAC])
5344 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5347 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
5350 if (!info->attrs[NL80211_ATTR_STA_AID] &&
5351 !info->attrs[NL80211_ATTR_PEER_AID])
5354 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5355 params.supported_rates =
5356 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5357 params.supported_rates_len =
5358 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5359 params.listen_interval =
5360 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
5362 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5365 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5366 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5369 params.support_p2p_ps = tmp;
5372 * if not specified, assume it's supported for P2P GO interface,
5373 * and is NOT supported for AP interface
5375 params.support_p2p_ps =
5376 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5379 if (info->attrs[NL80211_ATTR_PEER_AID])
5380 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
5382 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
5383 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5386 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5388 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5389 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5392 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5394 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5395 params.ext_capab_len =
5396 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5399 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5401 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5403 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5405 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5407 if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) {
5409 nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
5410 params.he_capa_len =
5411 nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
5413 /* max len is validated in nla policy */
5414 if (params.he_capa_len < NL80211_HE_MIN_CAPABILITY_LEN)
5418 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5419 params.opmode_notif_used = true;
5420 params.opmode_notif =
5421 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5424 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
5425 params.plink_action =
5426 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5427 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5431 err = nl80211_parse_sta_channel_info(info, ¶ms);
5435 err = nl80211_parse_sta_wme(info, ¶ms);
5439 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5442 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5443 * as userspace might just pass through the capabilities from the IEs
5444 * directly, rather than enforcing this restriction and returning an
5445 * error in this case.
5447 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5448 params.ht_capa = NULL;
5449 params.vht_capa = NULL;
5451 /* HE requires WME */
5452 if (params.he_capa_len)
5456 /* When you run into this, adjust the code below for the new flag */
5457 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5459 switch (dev->ieee80211_ptr->iftype) {
5460 case NL80211_IFTYPE_AP:
5461 case NL80211_IFTYPE_AP_VLAN:
5462 case NL80211_IFTYPE_P2P_GO:
5463 /* ignore WME attributes if iface/sta is not capable */
5464 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5465 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5466 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5468 /* TDLS peers cannot be added */
5469 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5470 info->attrs[NL80211_ATTR_PEER_AID])
5472 /* but don't bother the driver with it */
5473 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
5475 /* allow authenticated/associated only if driver handles it */
5476 if (!(rdev->wiphy.features &
5477 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
5478 params.sta_flags_mask & auth_assoc)
5481 /* Older userspace, or userspace wanting to be compatible with
5482 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5483 * and assoc flags in the mask, but assumes the station will be
5484 * added as associated anyway since this was the required driver
5485 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5487 * In order to not bother drivers with this quirk in the API
5488 * set the flags in both the mask and set for new stations in
5491 if (!(params.sta_flags_mask & auth_assoc)) {
5492 params.sta_flags_mask |= auth_assoc;
5493 params.sta_flags_set |= auth_assoc;
5496 /* must be last in here for error handling */
5497 params.vlan = get_vlan(info, rdev);
5498 if (IS_ERR(params.vlan))
5499 return PTR_ERR(params.vlan);
5501 case NL80211_IFTYPE_MESH_POINT:
5502 /* ignore uAPSD data */
5503 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5505 /* associated is disallowed */
5506 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5508 /* TDLS peers cannot be added */
5509 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5510 info->attrs[NL80211_ATTR_PEER_AID])
5513 case NL80211_IFTYPE_STATION:
5514 case NL80211_IFTYPE_P2P_CLIENT:
5515 /* ignore uAPSD data */
5516 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5518 /* these are disallowed */
5519 if (params.sta_flags_mask &
5520 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5521 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
5523 /* Only TDLS peers can be added */
5524 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5526 /* Can only add if TDLS ... */
5527 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5529 /* ... with external setup is supported */
5530 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5533 * Older wpa_supplicant versions always mark the TDLS peer
5534 * as authorized, but it shouldn't yet be.
5536 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
5542 /* be aware of params.vlan when changing code here */
5544 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
5547 dev_put(params.vlan);
5551 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5554 struct net_device *dev = info->user_ptr[1];
5555 struct station_del_parameters params;
5557 memset(¶ms, 0, sizeof(params));
5559 if (info->attrs[NL80211_ATTR_MAC])
5560 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5562 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5563 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5564 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5565 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5568 if (!rdev->ops->del_station)
5571 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5573 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5574 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5575 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5578 /* Default to Deauthentication frame */
5579 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5582 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5583 params.reason_code =
5584 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5585 if (params.reason_code == 0)
5586 return -EINVAL; /* 0 is reserved */
5588 /* Default to reason code 2 */
5589 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5592 return rdev_del_station(rdev, dev, ¶ms);
5595 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
5596 int flags, struct net_device *dev,
5597 u8 *dst, u8 *next_hop,
5598 struct mpath_info *pinfo)
5601 struct nlattr *pinfoattr;
5603 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
5607 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5608 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5609 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5610 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5611 goto nla_put_failure;
5613 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5615 goto nla_put_failure;
5616 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5617 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5619 goto nla_put_failure;
5620 if (((pinfo->filled & MPATH_INFO_SN) &&
5621 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5622 ((pinfo->filled & MPATH_INFO_METRIC) &&
5623 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5625 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5626 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5628 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5629 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5631 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5632 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5633 pinfo->discovery_timeout)) ||
5634 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5635 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5636 pinfo->discovery_retries)))
5637 goto nla_put_failure;
5639 nla_nest_end(msg, pinfoattr);
5641 genlmsg_end(msg, hdr);
5645 genlmsg_cancel(msg, hdr);
5649 static int nl80211_dump_mpath(struct sk_buff *skb,
5650 struct netlink_callback *cb)
5652 struct mpath_info pinfo;
5653 struct cfg80211_registered_device *rdev;
5654 struct wireless_dev *wdev;
5656 u8 next_hop[ETH_ALEN];
5657 int path_idx = cb->args[2];
5661 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5665 if (!rdev->ops->dump_mpath) {
5670 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5676 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
5683 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5684 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5685 wdev->netdev, dst, next_hop,
5693 cb->args[2] = path_idx;
5700 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5704 struct net_device *dev = info->user_ptr[1];
5705 struct mpath_info pinfo;
5706 struct sk_buff *msg;
5708 u8 next_hop[ETH_ALEN];
5710 memset(&pinfo, 0, sizeof(pinfo));
5712 if (!info->attrs[NL80211_ATTR_MAC])
5715 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5717 if (!rdev->ops->get_mpath)
5720 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5723 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
5727 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5731 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5732 dev, dst, next_hop, &pinfo) < 0) {
5737 return genlmsg_reply(msg, info);
5740 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5743 struct net_device *dev = info->user_ptr[1];
5745 u8 *next_hop = NULL;
5747 if (!info->attrs[NL80211_ATTR_MAC])
5750 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5753 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5754 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5756 if (!rdev->ops->change_mpath)
5759 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5762 return rdev_change_mpath(rdev, dev, dst, next_hop);
5765 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5768 struct net_device *dev = info->user_ptr[1];
5770 u8 *next_hop = NULL;
5772 if (!info->attrs[NL80211_ATTR_MAC])
5775 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5778 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5779 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5781 if (!rdev->ops->add_mpath)
5784 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5787 return rdev_add_mpath(rdev, dev, dst, next_hop);
5790 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5792 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5793 struct net_device *dev = info->user_ptr[1];
5796 if (info->attrs[NL80211_ATTR_MAC])
5797 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5799 if (!rdev->ops->del_mpath)
5802 return rdev_del_mpath(rdev, dev, dst);
5805 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5809 struct net_device *dev = info->user_ptr[1];
5810 struct mpath_info pinfo;
5811 struct sk_buff *msg;
5815 memset(&pinfo, 0, sizeof(pinfo));
5817 if (!info->attrs[NL80211_ATTR_MAC])
5820 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5822 if (!rdev->ops->get_mpp)
5825 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5828 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5832 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5836 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5837 dev, dst, mpp, &pinfo) < 0) {
5842 return genlmsg_reply(msg, info);
5845 static int nl80211_dump_mpp(struct sk_buff *skb,
5846 struct netlink_callback *cb)
5848 struct mpath_info pinfo;
5849 struct cfg80211_registered_device *rdev;
5850 struct wireless_dev *wdev;
5853 int path_idx = cb->args[2];
5857 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5861 if (!rdev->ops->dump_mpp) {
5866 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5872 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5879 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5880 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5881 wdev->netdev, dst, mpp,
5889 cb->args[2] = path_idx;
5896 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5899 struct net_device *dev = info->user_ptr[1];
5900 struct wireless_dev *wdev = dev->ieee80211_ptr;
5901 struct bss_parameters params;
5904 memset(¶ms, 0, sizeof(params));
5905 /* default to not changing parameters */
5906 params.use_cts_prot = -1;
5907 params.use_short_preamble = -1;
5908 params.use_short_slot_time = -1;
5909 params.ap_isolate = -1;
5910 params.ht_opmode = -1;
5911 params.p2p_ctwindow = -1;
5912 params.p2p_opp_ps = -1;
5914 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5915 params.use_cts_prot =
5916 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5917 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5918 params.use_short_preamble =
5919 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5920 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5921 params.use_short_slot_time =
5922 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
5923 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5924 params.basic_rates =
5925 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5926 params.basic_rates_len =
5927 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5929 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5930 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
5931 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5933 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
5935 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5936 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5938 params.p2p_ctwindow =
5939 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5940 if (params.p2p_ctwindow < 0)
5942 if (params.p2p_ctwindow != 0 &&
5943 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5947 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5950 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5952 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5955 params.p2p_opp_ps = tmp;
5956 if (params.p2p_opp_ps &&
5957 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5961 if (!rdev->ops->change_bss)
5964 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5965 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5969 err = rdev_change_bss(rdev, dev, ¶ms);
5975 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5979 enum nl80211_user_reg_hint_type user_reg_hint_type;
5983 * You should only get this when cfg80211 hasn't yet initialized
5984 * completely when built-in to the kernel right between the time
5985 * window between nl80211_init() and regulatory_init(), if that is
5988 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5989 return -EINPROGRESS;
5991 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5992 user_reg_hint_type =
5993 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5995 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5997 switch (user_reg_hint_type) {
5998 case NL80211_USER_REG_HINT_USER:
5999 case NL80211_USER_REG_HINT_CELL_BASE:
6000 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6003 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6004 return regulatory_hint_user(data, user_reg_hint_type);
6005 case NL80211_USER_REG_HINT_INDOOR:
6006 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
6007 owner_nlportid = info->snd_portid;
6008 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
6014 return regulatory_hint_indoor(is_indoor, owner_nlportid);
6020 static int nl80211_reload_regdb(struct sk_buff *skb, struct genl_info *info)
6022 return reg_reload_regdb();
6025 static int nl80211_get_mesh_config(struct sk_buff *skb,
6026 struct genl_info *info)
6028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6029 struct net_device *dev = info->user_ptr[1];
6030 struct wireless_dev *wdev = dev->ieee80211_ptr;
6031 struct mesh_config cur_params;
6034 struct nlattr *pinfoattr;
6035 struct sk_buff *msg;
6037 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6040 if (!rdev->ops->get_mesh_config)
6044 /* If not connected, get default parameters */
6045 if (!wdev->mesh_id_len)
6046 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
6048 err = rdev_get_mesh_config(rdev, dev, &cur_params);
6054 /* Draw up a netlink message to send back */
6055 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6058 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6059 NL80211_CMD_GET_MESH_CONFIG);
6062 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
6064 goto nla_put_failure;
6065 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
6066 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
6067 cur_params.dot11MeshRetryTimeout) ||
6068 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
6069 cur_params.dot11MeshConfirmTimeout) ||
6070 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
6071 cur_params.dot11MeshHoldingTimeout) ||
6072 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
6073 cur_params.dot11MeshMaxPeerLinks) ||
6074 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
6075 cur_params.dot11MeshMaxRetries) ||
6076 nla_put_u8(msg, NL80211_MESHCONF_TTL,
6077 cur_params.dot11MeshTTL) ||
6078 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
6079 cur_params.element_ttl) ||
6080 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
6081 cur_params.auto_open_plinks) ||
6082 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
6083 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
6084 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
6085 cur_params.dot11MeshHWMPmaxPREQretries) ||
6086 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
6087 cur_params.path_refresh_time) ||
6088 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
6089 cur_params.min_discovery_timeout) ||
6090 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
6091 cur_params.dot11MeshHWMPactivePathTimeout) ||
6092 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
6093 cur_params.dot11MeshHWMPpreqMinInterval) ||
6094 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
6095 cur_params.dot11MeshHWMPperrMinInterval) ||
6096 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
6097 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
6098 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
6099 cur_params.dot11MeshHWMPRootMode) ||
6100 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
6101 cur_params.dot11MeshHWMPRannInterval) ||
6102 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
6103 cur_params.dot11MeshGateAnnouncementProtocol) ||
6104 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
6105 cur_params.dot11MeshForwarding) ||
6106 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
6107 cur_params.rssi_threshold) ||
6108 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
6109 cur_params.ht_opmode) ||
6110 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
6111 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
6112 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
6113 cur_params.dot11MeshHWMProotInterval) ||
6114 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
6115 cur_params.dot11MeshHWMPconfirmationInterval) ||
6116 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
6117 cur_params.power_mode) ||
6118 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
6119 cur_params.dot11MeshAwakeWindowDuration) ||
6120 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
6121 cur_params.plink_timeout))
6122 goto nla_put_failure;
6123 nla_nest_end(msg, pinfoattr);
6124 genlmsg_end(msg, hdr);
6125 return genlmsg_reply(msg, info);
6133 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
6134 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
6135 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
6136 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
6137 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
6138 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
6139 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
6140 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
6141 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
6142 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
6143 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
6144 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
6145 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
6146 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
6147 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
6148 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
6149 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
6150 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
6151 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
6152 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
6153 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
6154 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
6155 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
6156 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
6157 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
6158 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
6159 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
6160 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
6161 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
6164 static const struct nla_policy
6165 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
6166 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
6167 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
6168 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
6169 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6170 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
6171 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
6172 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
6173 .len = IEEE80211_MAX_DATA_LEN },
6174 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
6177 static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
6179 u8 val = nla_get_u8(nla);
6180 if (val < min || val > max)
6186 static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
6188 u8 val = nla_get_u8(nla);
6189 if (val < min || val > max)
6195 static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
6197 u16 val = nla_get_u16(nla);
6198 if (val < min || val > max)
6204 static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
6206 u32 val = nla_get_u32(nla);
6207 if (val < min || val > max)
6213 static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
6215 s32 val = nla_get_s32(nla);
6216 if (val < min || val > max)
6222 static int nl80211_check_power_mode(const struct nlattr *nla,
6223 enum nl80211_mesh_power_mode min,
6224 enum nl80211_mesh_power_mode max,
6225 enum nl80211_mesh_power_mode *out)
6227 u32 val = nla_get_u32(nla);
6228 if (val < min || val > max)
6234 static int nl80211_parse_mesh_config(struct genl_info *info,
6235 struct mesh_config *cfg,
6238 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
6242 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
6245 if (fn(tb[attr], min, max, &cfg->param)) \
6247 mask |= (1 << (attr - 1)); \
6251 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
6253 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
6254 info->attrs[NL80211_ATTR_MESH_CONFIG],
6255 nl80211_meshconf_params_policy, info->extack))
6258 /* This makes sure that there aren't more than 32 mesh config
6259 * parameters (otherwise our bitfield scheme would not work.) */
6260 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
6262 /* Fill in the params struct */
6263 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
6264 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
6266 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
6267 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
6269 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
6270 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
6272 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
6273 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
6275 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
6276 mask, NL80211_MESHCONF_MAX_RETRIES,
6278 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
6279 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
6280 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
6281 mask, NL80211_MESHCONF_ELEMENT_TTL,
6283 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
6284 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
6285 nl80211_check_bool);
6286 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
6288 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
6290 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
6291 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
6293 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
6294 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
6296 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
6297 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
6299 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
6301 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
6303 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
6305 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
6307 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
6309 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
6311 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6312 dot11MeshHWMPnetDiameterTraversalTime,
6314 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
6316 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
6317 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
6319 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
6320 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
6322 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6323 dot11MeshGateAnnouncementProtocol, 0, 1,
6324 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
6325 nl80211_check_bool);
6326 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
6327 mask, NL80211_MESHCONF_FORWARDING,
6328 nl80211_check_bool);
6329 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
6330 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
6333 * Check HT operation mode based on
6334 * IEEE 802.11-2016 9.4.2.57 HT Operation element.
6336 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
6337 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
6339 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
6340 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
6341 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6344 /* NON_HT_STA bit is reserved, but some programs set it */
6345 ht_opmode &= ~IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT;
6347 cfg->ht_opmode = ht_opmode;
6348 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
6350 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
6352 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
6354 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
6355 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
6357 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6358 dot11MeshHWMPconfirmationInterval,
6360 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
6362 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
6363 NL80211_MESH_POWER_ACTIVE,
6364 NL80211_MESH_POWER_MAX,
6365 mask, NL80211_MESHCONF_POWER_MODE,
6366 nl80211_check_power_mode);
6367 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
6369 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
6370 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
6371 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
6378 #undef FILL_IN_MESH_PARAM_IF_SET
6381 static int nl80211_parse_mesh_setup(struct genl_info *info,
6382 struct mesh_setup *setup)
6384 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6385 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6387 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6389 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6390 info->attrs[NL80211_ATTR_MESH_SETUP],
6391 nl80211_mesh_setup_params_policy, info->extack))
6394 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6395 setup->sync_method =
6396 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6397 IEEE80211_SYNC_METHOD_VENDOR :
6398 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6400 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6401 setup->path_sel_proto =
6402 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6403 IEEE80211_PATH_PROTOCOL_VENDOR :
6404 IEEE80211_PATH_PROTOCOL_HWMP;
6406 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6407 setup->path_metric =
6408 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6409 IEEE80211_PATH_METRIC_VENDOR :
6410 IEEE80211_PATH_METRIC_AIRTIME;
6412 if (tb[NL80211_MESH_SETUP_IE]) {
6413 struct nlattr *ieattr =
6414 tb[NL80211_MESH_SETUP_IE];
6415 if (!is_valid_ie_attr(ieattr))
6417 setup->ie = nla_data(ieattr);
6418 setup->ie_len = nla_len(ieattr);
6420 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6421 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6423 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
6424 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6425 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
6426 if (setup->is_secure)
6427 setup->user_mpm = true;
6429 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6430 if (!setup->user_mpm)
6433 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6439 static int nl80211_update_mesh_config(struct sk_buff *skb,
6440 struct genl_info *info)
6442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6443 struct net_device *dev = info->user_ptr[1];
6444 struct wireless_dev *wdev = dev->ieee80211_ptr;
6445 struct mesh_config cfg;
6449 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6452 if (!rdev->ops->update_mesh_config)
6455 err = nl80211_parse_mesh_config(info, &cfg, &mask);
6460 if (!wdev->mesh_id_len)
6464 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
6471 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6472 struct sk_buff *msg)
6474 struct nlattr *nl_reg_rules;
6477 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6478 (regdom->dfs_region &&
6479 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
6480 goto nla_put_failure;
6482 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6484 goto nla_put_failure;
6486 for (i = 0; i < regdom->n_reg_rules; i++) {
6487 struct nlattr *nl_reg_rule;
6488 const struct ieee80211_reg_rule *reg_rule;
6489 const struct ieee80211_freq_range *freq_range;
6490 const struct ieee80211_power_rule *power_rule;
6491 unsigned int max_bandwidth_khz;
6493 reg_rule = ®dom->reg_rules[i];
6494 freq_range = ®_rule->freq_range;
6495 power_rule = ®_rule->power_rule;
6497 nl_reg_rule = nla_nest_start(msg, i);
6499 goto nla_put_failure;
6501 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6502 if (!max_bandwidth_khz)
6503 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6506 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6508 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6509 freq_range->start_freq_khz) ||
6510 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6511 freq_range->end_freq_khz) ||
6512 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
6513 max_bandwidth_khz) ||
6514 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6515 power_rule->max_antenna_gain) ||
6516 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
6517 power_rule->max_eirp) ||
6518 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6519 reg_rule->dfs_cac_ms))
6520 goto nla_put_failure;
6522 nla_nest_end(msg, nl_reg_rule);
6525 nla_nest_end(msg, nl_reg_rules);
6532 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6534 const struct ieee80211_regdomain *regdom = NULL;
6535 struct cfg80211_registered_device *rdev;
6536 struct wiphy *wiphy = NULL;
6537 struct sk_buff *msg;
6540 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6544 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6545 NL80211_CMD_GET_REG);
6549 if (info->attrs[NL80211_ATTR_WIPHY]) {
6552 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6555 return PTR_ERR(rdev);
6558 wiphy = &rdev->wiphy;
6559 self_managed = wiphy->regulatory_flags &
6560 REGULATORY_WIPHY_SELF_MANAGED;
6561 regdom = get_wiphy_regdom(wiphy);
6563 /* a self-managed-reg device must have a private regdom */
6564 if (WARN_ON(!regdom && self_managed)) {
6570 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6571 goto nla_put_failure;
6574 if (!wiphy && reg_last_request_cell_base() &&
6575 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6576 NL80211_USER_REG_HINT_CELL_BASE))
6577 goto nla_put_failure;
6582 regdom = rcu_dereference(cfg80211_regdomain);
6584 if (nl80211_put_regdom(regdom, msg))
6585 goto nla_put_failure_rcu;
6589 genlmsg_end(msg, hdr);
6590 return genlmsg_reply(msg, info);
6592 nla_put_failure_rcu:
6600 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6601 u32 seq, int flags, struct wiphy *wiphy,
6602 const struct ieee80211_regdomain *regdom)
6604 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6605 NL80211_CMD_GET_REG);
6610 genl_dump_check_consistent(cb, hdr);
6612 if (nl80211_put_regdom(regdom, msg))
6613 goto nla_put_failure;
6615 if (!wiphy && reg_last_request_cell_base() &&
6616 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6617 NL80211_USER_REG_HINT_CELL_BASE))
6618 goto nla_put_failure;
6621 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6622 goto nla_put_failure;
6624 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6625 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6626 goto nla_put_failure;
6628 genlmsg_end(msg, hdr);
6632 genlmsg_cancel(msg, hdr);
6636 static int nl80211_get_reg_dump(struct sk_buff *skb,
6637 struct netlink_callback *cb)
6639 const struct ieee80211_regdomain *regdom = NULL;
6640 struct cfg80211_registered_device *rdev;
6641 int err, reg_idx, start = cb->args[2];
6645 if (cfg80211_regdomain && start == 0) {
6646 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6648 rtnl_dereference(cfg80211_regdomain));
6653 /* the global regdom is idx 0 */
6655 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6656 regdom = get_wiphy_regdom(&rdev->wiphy);
6660 if (++reg_idx <= start)
6663 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6664 NLM_F_MULTI, &rdev->wiphy, regdom);
6671 cb->args[2] = reg_idx;
6678 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
6679 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6680 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6681 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6682 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6683 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6684 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6685 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6686 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6689 static int parse_reg_rule(struct nlattr *tb[],
6690 struct ieee80211_reg_rule *reg_rule)
6692 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
6693 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
6695 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6697 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6699 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6701 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6703 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6706 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6708 freq_range->start_freq_khz =
6709 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6710 freq_range->end_freq_khz =
6711 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6712 freq_range->max_bandwidth_khz =
6713 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6715 power_rule->max_eirp =
6716 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6718 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6719 power_rule->max_antenna_gain =
6720 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6722 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6723 reg_rule->dfs_cac_ms =
6724 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6729 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6731 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6732 struct nlattr *nl_reg_rule;
6734 int rem_reg_rules, r;
6735 u32 num_rules = 0, rule_idx = 0, size_of_regd;
6736 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
6737 struct ieee80211_regdomain *rd;
6739 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6742 if (!info->attrs[NL80211_ATTR_REG_RULES])
6745 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6747 if (info->attrs[NL80211_ATTR_DFS_REGION])
6748 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6750 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6753 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
6757 if (!reg_is_valid_request(alpha2))
6760 size_of_regd = sizeof(struct ieee80211_regdomain) +
6761 num_rules * sizeof(struct ieee80211_reg_rule);
6763 rd = kzalloc(size_of_regd, GFP_KERNEL);
6767 rd->n_reg_rules = num_rules;
6768 rd->alpha2[0] = alpha2[0];
6769 rd->alpha2[1] = alpha2[1];
6772 * Disable DFS master mode if the DFS region was
6773 * not supported or known on this kernel.
6775 if (reg_supported_dfs_region(dfs_region))
6776 rd->dfs_region = dfs_region;
6778 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6780 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
6781 nl_reg_rule, reg_rule_policy,
6785 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6791 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6797 /* set_regdom takes ownership of rd */
6798 return set_regdom(rd, REGD_SOURCE_CRDA);
6803 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
6805 static int validate_scan_freqs(struct nlattr *freqs)
6807 struct nlattr *attr1, *attr2;
6808 int n_channels = 0, tmp1, tmp2;
6810 nla_for_each_nested(attr1, freqs, tmp1)
6811 if (nla_len(attr1) != sizeof(u32))
6814 nla_for_each_nested(attr1, freqs, tmp1) {
6817 * Some hardware has a limited channel list for
6818 * scanning, and it is pretty much nonsensical
6819 * to scan for a channel twice, so disallow that
6820 * and don't require drivers to check that the
6821 * channel list they get isn't longer than what
6822 * they can scan, as long as they can scan all
6823 * the channels they registered at once.
6825 nla_for_each_nested(attr2, freqs, tmp2)
6826 if (attr1 != attr2 &&
6827 nla_get_u32(attr1) == nla_get_u32(attr2))
6834 static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
6836 return b < NUM_NL80211_BANDS && wiphy->bands[b];
6839 static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6840 struct cfg80211_bss_selection *bss_select)
6842 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6843 struct nlattr *nest;
6848 /* only process one nested attribute */
6849 nest = nla_data(nla);
6850 if (!nla_ok(nest, nla_len(nest)))
6853 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
6854 nl80211_bss_select_policy, NULL);
6858 /* only one attribute may be given */
6859 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6867 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6869 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6870 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6872 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6873 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6874 bss_select->param.band_pref =
6875 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6876 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6880 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6881 struct nl80211_bss_select_rssi_adjust *adj_param;
6883 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6884 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6885 bss_select->param.adjust.band = adj_param->band;
6886 bss_select->param.adjust.delta = adj_param->delta;
6887 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6891 /* user-space did not provide behaviour attribute */
6892 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6895 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6901 static int nl80211_parse_random_mac(struct nlattr **attrs,
6902 u8 *mac_addr, u8 *mac_addr_mask)
6906 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
6907 eth_zero_addr(mac_addr);
6908 eth_zero_addr(mac_addr_mask);
6910 mac_addr_mask[0] = 0x3;
6915 /* need both or none */
6916 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6919 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6920 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6922 /* don't allow or configure an mcast address */
6923 if (!is_multicast_ether_addr(mac_addr_mask) ||
6924 is_multicast_ether_addr(mac_addr))
6928 * allow users to pass a MAC address that has bits set outside
6929 * of the mask, but don't bother drivers with having to deal
6932 for (i = 0; i < ETH_ALEN; i++)
6933 mac_addr[i] &= mac_addr_mask[i];
6938 static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6940 ASSERT_WDEV_LOCK(wdev);
6942 if (!cfg80211_beaconing_iface_active(wdev))
6945 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6948 return regulatory_pre_cac_allowed(wdev->wiphy);
6951 static bool nl80211_check_scan_feat(struct wiphy *wiphy, u32 flags, u32 flag,
6952 enum nl80211_ext_feature_index feat)
6954 if (!(flags & flag))
6956 if (wiphy_ext_feature_isset(wiphy, feat))
6962 nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev,
6963 void *request, struct nlattr **attrs,
6966 u8 *mac_addr, *mac_addr_mask;
6968 enum nl80211_feature_flags randomness_flag;
6970 if (!attrs[NL80211_ATTR_SCAN_FLAGS])
6973 if (is_sched_scan) {
6974 struct cfg80211_sched_scan_request *req = request;
6976 randomness_flag = wdev ?
6977 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR :
6978 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6979 flags = &req->flags;
6980 mac_addr = req->mac_addr;
6981 mac_addr_mask = req->mac_addr_mask;
6983 struct cfg80211_scan_request *req = request;
6985 randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
6986 flags = &req->flags;
6987 mac_addr = req->mac_addr;
6988 mac_addr_mask = req->mac_addr_mask;
6991 *flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]);
6993 if (((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6994 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
6995 !nl80211_check_scan_feat(wiphy, *flags,
6996 NL80211_SCAN_FLAG_LOW_SPAN,
6997 NL80211_EXT_FEATURE_LOW_SPAN_SCAN) ||
6998 !nl80211_check_scan_feat(wiphy, *flags,
6999 NL80211_SCAN_FLAG_LOW_POWER,
7000 NL80211_EXT_FEATURE_LOW_POWER_SCAN) ||
7001 !nl80211_check_scan_feat(wiphy, *flags,
7002 NL80211_SCAN_FLAG_HIGH_ACCURACY,
7003 NL80211_EXT_FEATURE_HIGH_ACCURACY_SCAN) ||
7004 !nl80211_check_scan_feat(wiphy, *flags,
7005 NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME,
7006 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME) ||
7007 !nl80211_check_scan_feat(wiphy, *flags,
7008 NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP,
7009 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP) ||
7010 !nl80211_check_scan_feat(wiphy, *flags,
7011 NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION,
7012 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) ||
7013 !nl80211_check_scan_feat(wiphy, *flags,
7014 NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE,
7015 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE) ||
7016 !nl80211_check_scan_feat(wiphy, *flags,
7017 NL80211_SCAN_FLAG_RANDOM_SN,
7018 NL80211_EXT_FEATURE_SCAN_RANDOM_SN) ||
7019 !nl80211_check_scan_feat(wiphy, *flags,
7020 NL80211_SCAN_FLAG_MIN_PREQ_CONTENT,
7021 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT))
7024 if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7027 if (!(wiphy->features & randomness_flag) ||
7028 (wdev && wdev->current_bss))
7031 err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask);
7039 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
7041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7042 struct wireless_dev *wdev = info->user_ptr[1];
7043 struct cfg80211_scan_request *request;
7044 struct nlattr *attr;
7045 struct wiphy *wiphy;
7046 int err, tmp, n_ssids = 0, n_channels, i;
7049 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7052 wiphy = &rdev->wiphy;
7054 if (wdev->iftype == NL80211_IFTYPE_NAN)
7057 if (!rdev->ops->scan)
7060 if (rdev->scan_req || rdev->scan_msg) {
7065 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7066 n_channels = validate_scan_freqs(
7067 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
7073 n_channels = ieee80211_get_num_supported_channels(wiphy);
7076 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
7077 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
7080 if (n_ssids > wiphy->max_scan_ssids) {
7085 if (info->attrs[NL80211_ATTR_IE])
7086 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7090 if (ie_len > wiphy->max_scan_ie_len) {
7095 request = kzalloc(sizeof(*request)
7096 + sizeof(*request->ssids) * n_ssids
7097 + sizeof(*request->channels) * n_channels
7098 + ie_len, GFP_KERNEL);
7105 request->ssids = (void *)&request->channels[n_channels];
7106 request->n_ssids = n_ssids;
7109 request->ie = (void *)(request->ssids + n_ssids);
7111 request->ie = (void *)(request->channels + n_channels);
7115 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7116 /* user specified, bail out if channel not found */
7117 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
7118 struct ieee80211_channel *chan;
7120 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7127 /* ignore disabled channels */
7128 if (chan->flags & IEEE80211_CHAN_DISABLED)
7131 request->channels[i] = chan;
7135 enum nl80211_band band;
7138 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7141 if (!wiphy->bands[band])
7143 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7144 struct ieee80211_channel *chan;
7146 chan = &wiphy->bands[band]->channels[j];
7148 if (chan->flags & IEEE80211_CHAN_DISABLED)
7151 request->channels[i] = chan;
7162 request->n_channels = i;
7165 if (!cfg80211_off_channel_oper_allowed(wdev)) {
7166 struct ieee80211_channel *chan;
7168 if (request->n_channels != 1) {
7174 chan = request->channels[0];
7175 if (chan->center_freq != wdev->chandef.chan->center_freq) {
7185 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
7186 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
7190 request->ssids[i].ssid_len = nla_len(attr);
7191 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
7196 if (info->attrs[NL80211_ATTR_IE]) {
7197 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7198 memcpy((void *)request->ie,
7199 nla_data(info->attrs[NL80211_ATTR_IE]),
7203 for (i = 0; i < NUM_NL80211_BANDS; i++)
7204 if (wiphy->bands[i])
7206 (1 << wiphy->bands[i]->n_bitrates) - 1;
7208 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
7209 nla_for_each_nested(attr,
7210 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
7212 enum nl80211_band band = nla_type(attr);
7214 if (band < 0 || band >= NUM_NL80211_BANDS) {
7219 if (!wiphy->bands[band])
7222 err = ieee80211_get_ratemask(wiphy->bands[band],
7225 &request->rates[band]);
7231 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
7232 if (!wiphy_ext_feature_isset(wiphy,
7233 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
7239 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
7240 request->duration_mandatory =
7241 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
7244 err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs,
7250 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7252 /* Initial implementation used NL80211_ATTR_MAC to set the specific
7253 * BSSID to scan for. This was problematic because that same attribute
7254 * was already used for another purpose (local random MAC address). The
7255 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
7256 * compatibility with older userspace components, also use the
7257 * NL80211_ATTR_MAC value here if it can be determined to be used for
7258 * the specific BSSID use case instead of the random MAC address
7259 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
7261 if (info->attrs[NL80211_ATTR_BSSID])
7262 memcpy(request->bssid,
7263 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
7264 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
7265 info->attrs[NL80211_ATTR_MAC])
7266 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
7269 eth_broadcast_addr(request->bssid);
7271 request->wdev = wdev;
7272 request->wiphy = &rdev->wiphy;
7273 request->scan_start = jiffies;
7275 rdev->scan_req = request;
7276 err = rdev_scan(rdev, request);
7279 nl80211_send_scan_start(rdev, wdev);
7281 dev_hold(wdev->netdev);
7284 rdev->scan_req = NULL;
7292 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
7294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7295 struct wireless_dev *wdev = info->user_ptr[1];
7297 if (!rdev->ops->abort_scan)
7303 if (!rdev->scan_req)
7306 rdev_abort_scan(rdev, wdev);
7311 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
7312 struct cfg80211_sched_scan_request *request,
7313 struct nlattr **attrs)
7315 int tmp, err, i = 0;
7316 struct nlattr *attr;
7318 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7322 * If scan plans are not specified,
7323 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
7324 * case one scan plan will be set with the specified scan
7325 * interval and infinite number of iterations.
7327 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
7331 request->scan_plans[0].interval =
7332 DIV_ROUND_UP(interval, MSEC_PER_SEC);
7333 if (!request->scan_plans[0].interval)
7336 if (request->scan_plans[0].interval >
7337 wiphy->max_sched_scan_plan_interval)
7338 request->scan_plans[0].interval =
7339 wiphy->max_sched_scan_plan_interval;
7344 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
7345 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
7347 if (WARN_ON(i >= n_plans))
7350 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
7351 attr, nl80211_plan_policy, NULL);
7355 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
7358 request->scan_plans[i].interval =
7359 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
7360 if (!request->scan_plans[i].interval ||
7361 request->scan_plans[i].interval >
7362 wiphy->max_sched_scan_plan_interval)
7365 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
7366 request->scan_plans[i].iterations =
7367 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
7368 if (!request->scan_plans[i].iterations ||
7369 (request->scan_plans[i].iterations >
7370 wiphy->max_sched_scan_plan_iterations))
7372 } else if (i < n_plans - 1) {
7374 * All scan plans but the last one must specify
7375 * a finite number of iterations
7384 * The last scan plan must not specify the number of
7385 * iterations, it is supposed to run infinitely
7387 if (request->scan_plans[n_plans - 1].iterations)
7393 static struct cfg80211_sched_scan_request *
7394 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
7395 struct nlattr **attrs, int max_match_sets)
7397 struct cfg80211_sched_scan_request *request;
7398 struct nlattr *attr;
7399 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
7400 enum nl80211_band band;
7402 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
7403 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
7405 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
7406 return ERR_PTR(-EINVAL);
7408 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7409 n_channels = validate_scan_freqs(
7410 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
7412 return ERR_PTR(-EINVAL);
7414 n_channels = ieee80211_get_num_supported_channels(wiphy);
7417 if (attrs[NL80211_ATTR_SCAN_SSIDS])
7418 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7422 if (n_ssids > wiphy->max_sched_scan_ssids)
7423 return ERR_PTR(-EINVAL);
7426 * First, count the number of 'real' matchsets. Due to an issue with
7427 * the old implementation, matchsets containing only the RSSI attribute
7428 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
7429 * RSSI for all matchsets, rather than their own matchset for reporting
7430 * all APs with a strong RSSI. This is needed to be compatible with
7431 * older userspace that treated a matchset with only the RSSI as the
7432 * global RSSI for all other matchsets - if there are other matchsets.
7434 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7435 nla_for_each_nested(attr,
7436 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7438 struct nlattr *rssi;
7440 err = nla_parse_nested(tb,
7441 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7442 attr, nl80211_match_policy,
7445 return ERR_PTR(err);
7447 /* SSID and BSSID are mutually exclusive */
7448 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
7449 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
7450 return ERR_PTR(-EINVAL);
7452 /* add other standalone attributes here */
7453 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
7454 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
7458 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7460 default_match_rssi = nla_get_s32(rssi);
7464 /* However, if there's no other matchset, add the RSSI one */
7465 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7468 if (n_match_sets > max_match_sets)
7469 return ERR_PTR(-EINVAL);
7471 if (attrs[NL80211_ATTR_IE])
7472 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
7476 if (ie_len > wiphy->max_sched_scan_ie_len)
7477 return ERR_PTR(-EINVAL);
7479 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7481 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7482 * each scan plan already specifies its own interval
7484 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7485 return ERR_PTR(-EINVAL);
7487 nla_for_each_nested(attr,
7488 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7492 * The scan interval attribute is kept for backward
7493 * compatibility. If no scan plans are specified and sched scan
7494 * interval is specified, one scan plan will be set with this
7495 * scan interval and infinite number of iterations.
7497 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7498 return ERR_PTR(-EINVAL);
7503 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7504 return ERR_PTR(-EINVAL);
7506 if (!wiphy_ext_feature_isset(
7507 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7508 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7509 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7510 return ERR_PTR(-EINVAL);
7512 request = kzalloc(sizeof(*request)
7513 + sizeof(*request->ssids) * n_ssids
7514 + sizeof(*request->match_sets) * n_match_sets
7515 + sizeof(*request->scan_plans) * n_plans
7516 + sizeof(*request->channels) * n_channels
7517 + ie_len, GFP_KERNEL);
7519 return ERR_PTR(-ENOMEM);
7522 request->ssids = (void *)&request->channels[n_channels];
7523 request->n_ssids = n_ssids;
7526 request->ie = (void *)(request->ssids + n_ssids);
7528 request->ie = (void *)(request->channels + n_channels);
7533 request->match_sets = (void *)(request->ie + ie_len);
7535 request->match_sets =
7536 (void *)(request->ssids + n_ssids);
7538 request->match_sets =
7539 (void *)(request->channels + n_channels);
7541 request->n_match_sets = n_match_sets;
7544 request->scan_plans = (void *)(request->match_sets +
7546 else if (request->ie)
7547 request->scan_plans = (void *)(request->ie + ie_len);
7549 request->scan_plans = (void *)(request->ssids + n_ssids);
7551 request->scan_plans = (void *)(request->channels + n_channels);
7553 request->n_scan_plans = n_plans;
7556 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7557 /* user specified, bail out if channel not found */
7558 nla_for_each_nested(attr,
7559 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
7561 struct ieee80211_channel *chan;
7563 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7570 /* ignore disabled channels */
7571 if (chan->flags & IEEE80211_CHAN_DISABLED)
7574 request->channels[i] = chan;
7579 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7582 if (!wiphy->bands[band])
7584 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7585 struct ieee80211_channel *chan;
7587 chan = &wiphy->bands[band]->channels[j];
7589 if (chan->flags & IEEE80211_CHAN_DISABLED)
7592 request->channels[i] = chan;
7603 request->n_channels = i;
7607 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7609 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
7613 request->ssids[i].ssid_len = nla_len(attr);
7614 memcpy(request->ssids[i].ssid, nla_data(attr),
7621 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7622 nla_for_each_nested(attr,
7623 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7625 struct nlattr *ssid, *bssid, *rssi;
7627 err = nla_parse_nested(tb,
7628 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7629 attr, nl80211_match_policy,
7633 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
7634 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
7635 if (ssid || bssid) {
7636 if (WARN_ON(i >= n_match_sets)) {
7637 /* this indicates a programming error,
7638 * the loop above should have verified
7646 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7650 memcpy(request->match_sets[i].ssid.ssid,
7651 nla_data(ssid), nla_len(ssid));
7652 request->match_sets[i].ssid.ssid_len =
7656 if (nla_len(bssid) != ETH_ALEN) {
7660 memcpy(request->match_sets[i].bssid,
7661 nla_data(bssid), ETH_ALEN);
7664 /* special attribute - old implementation w/a */
7665 request->match_sets[i].rssi_thold =
7667 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7669 request->match_sets[i].rssi_thold =
7675 /* there was no other matchset, so the RSSI one is alone */
7676 if (i == 0 && n_match_sets)
7677 request->match_sets[0].rssi_thold = default_match_rssi;
7679 request->min_rssi_thold = INT_MAX;
7680 for (i = 0; i < n_match_sets; i++)
7681 request->min_rssi_thold =
7682 min(request->match_sets[i].rssi_thold,
7683 request->min_rssi_thold);
7685 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
7689 request->ie_len = ie_len;
7690 memcpy((void *)request->ie,
7691 nla_data(attrs[NL80211_ATTR_IE]),
7695 err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true);
7699 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7701 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7703 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7704 request->relative_rssi = nla_get_s8(
7705 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7706 request->relative_rssi_set = true;
7709 if (request->relative_rssi_set &&
7710 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7711 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7713 rssi_adjust = nla_data(
7714 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7715 request->rssi_adjust.band = rssi_adjust->band;
7716 request->rssi_adjust.delta = rssi_adjust->delta;
7717 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7723 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7727 request->scan_start = jiffies;
7733 return ERR_PTR(err);
7736 static int nl80211_start_sched_scan(struct sk_buff *skb,
7737 struct genl_info *info)
7739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7740 struct net_device *dev = info->user_ptr[1];
7741 struct wireless_dev *wdev = dev->ieee80211_ptr;
7742 struct cfg80211_sched_scan_request *sched_scan_req;
7746 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
7749 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
7750 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
7754 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7756 rdev->wiphy.max_match_sets);
7758 err = PTR_ERR_OR_ZERO(sched_scan_req);
7762 /* leave request id zero for legacy request
7763 * or if driver does not support multi-scheduled scan
7765 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
7766 while (!sched_scan_req->reqid)
7767 sched_scan_req->reqid = rdev->wiphy.cookie_counter++;
7770 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
7774 sched_scan_req->dev = dev;
7775 sched_scan_req->wiphy = &rdev->wiphy;
7777 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7778 sched_scan_req->owner_nlportid = info->snd_portid;
7780 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
7782 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
7786 kfree(sched_scan_req);
7791 static int nl80211_stop_sched_scan(struct sk_buff *skb,
7792 struct genl_info *info)
7794 struct cfg80211_sched_scan_request *req;
7795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7798 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
7801 if (info->attrs[NL80211_ATTR_COOKIE]) {
7802 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7803 return __cfg80211_stop_sched_scan(rdev, cookie, false);
7806 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
7807 struct cfg80211_sched_scan_request,
7809 if (!req || req->reqid ||
7810 (req->owner_nlportid &&
7811 req->owner_nlportid != info->snd_portid))
7814 return cfg80211_stop_sched_scan_req(rdev, req, false);
7817 static int nl80211_start_radar_detection(struct sk_buff *skb,
7818 struct genl_info *info)
7820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7821 struct net_device *dev = info->user_ptr[1];
7822 struct wireless_dev *wdev = dev->ieee80211_ptr;
7823 struct wiphy *wiphy = wdev->wiphy;
7824 struct cfg80211_chan_def chandef;
7825 enum nl80211_dfs_regions dfs_region;
7826 unsigned int cac_time_ms;
7829 dfs_region = reg_get_dfs_region(wiphy);
7830 if (dfs_region == NL80211_DFS_UNSET)
7833 err = nl80211_parse_chandef(rdev, info, &chandef);
7837 if (netif_carrier_ok(dev))
7840 if (wdev->cac_started)
7843 err = cfg80211_chandef_dfs_required(wiphy, &chandef, wdev->iftype);
7850 if (!cfg80211_chandef_dfs_usable(wiphy, &chandef))
7853 /* CAC start is offloaded to HW and can't be started manually */
7854 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD))
7857 if (!rdev->ops->start_radar_detection)
7860 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7861 if (WARN_ON(!cac_time_ms))
7862 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7864 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
7866 wdev->chandef = chandef;
7867 wdev->cac_started = true;
7868 wdev->cac_start_time = jiffies;
7869 wdev->cac_time_ms = cac_time_ms;
7874 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7877 struct net_device *dev = info->user_ptr[1];
7878 struct wireless_dev *wdev = dev->ieee80211_ptr;
7879 struct cfg80211_csa_settings params;
7880 /* csa_attrs is defined static to avoid waste of stack size - this
7881 * function is called under RTNL lock, so this should not be a problem.
7883 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
7885 bool need_new_beacon = false;
7886 bool need_handle_dfs_flag = true;
7890 if (!rdev->ops->channel_switch ||
7891 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7894 switch (dev->ieee80211_ptr->iftype) {
7895 case NL80211_IFTYPE_AP:
7896 case NL80211_IFTYPE_P2P_GO:
7897 need_new_beacon = true;
7898 /* For all modes except AP the handle_dfs flag needs to be
7899 * supplied to tell the kernel that userspace will handle radar
7900 * events when they happen. Otherwise a switch to a channel
7901 * requiring DFS will be rejected.
7903 need_handle_dfs_flag = false;
7905 /* useless if AP is not running */
7906 if (!wdev->beacon_interval)
7909 case NL80211_IFTYPE_ADHOC:
7910 if (!wdev->ssid_len)
7913 case NL80211_IFTYPE_MESH_POINT:
7914 if (!wdev->mesh_id_len)
7921 memset(¶ms, 0, sizeof(params));
7923 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7924 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7927 /* only important for AP, IBSS and mesh create IEs internally */
7928 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
7931 /* Even though the attribute is u32, the specification says
7932 * u8, so let's make sure we don't overflow.
7934 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7938 params.count = cs_count;
7940 if (!need_new_beacon)
7943 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
7947 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7948 info->attrs[NL80211_ATTR_CSA_IES],
7949 nl80211_policy, info->extack);
7953 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
7957 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7960 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7961 if (!len || (len % sizeof(u16)))
7964 params.n_counter_offsets_beacon = len / sizeof(u16);
7965 if (rdev->wiphy.max_num_csa_counters &&
7966 (params.n_counter_offsets_beacon >
7967 rdev->wiphy.max_num_csa_counters))
7970 params.counter_offsets_beacon =
7971 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7973 /* sanity checks - counters should fit and be the same */
7974 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7975 u16 offset = params.counter_offsets_beacon[i];
7977 if (offset >= params.beacon_csa.tail_len)
7980 if (params.beacon_csa.tail[offset] != params.count)
7984 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
7985 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7986 if (!len || (len % sizeof(u16)))
7989 params.n_counter_offsets_presp = len / sizeof(u16);
7990 if (rdev->wiphy.max_num_csa_counters &&
7991 (params.n_counter_offsets_presp >
7992 rdev->wiphy.max_num_csa_counters))
7995 params.counter_offsets_presp =
7996 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7998 /* sanity checks - counters should fit and be the same */
7999 for (i = 0; i < params.n_counter_offsets_presp; i++) {
8000 u16 offset = params.counter_offsets_presp[i];
8002 if (offset >= params.beacon_csa.probe_resp_len)
8005 if (params.beacon_csa.probe_resp[offset] !=
8012 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
8016 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
8020 err = cfg80211_chandef_dfs_required(wdev->wiphy,
8027 params.radar_required = true;
8028 if (need_handle_dfs_flag &&
8029 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
8034 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
8035 params.block_tx = true;
8038 err = rdev_channel_switch(rdev, dev, ¶ms);
8044 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
8046 struct cfg80211_registered_device *rdev,
8047 struct wireless_dev *wdev,
8048 struct cfg80211_internal_bss *intbss)
8050 struct cfg80211_bss *res = &intbss->pub;
8051 const struct cfg80211_bss_ies *ies;
8055 ASSERT_WDEV_LOCK(wdev);
8057 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
8058 NL80211_CMD_NEW_SCAN_RESULTS);
8062 genl_dump_check_consistent(cb, hdr);
8064 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
8065 goto nla_put_failure;
8067 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
8068 goto nla_put_failure;
8069 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
8071 goto nla_put_failure;
8073 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
8075 goto nla_put_failure;
8076 if ((!is_zero_ether_addr(res->bssid) &&
8077 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
8078 goto nla_put_failure;
8081 /* indicate whether we have probe response data or not */
8082 if (rcu_access_pointer(res->proberesp_ies) &&
8083 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
8084 goto fail_unlock_rcu;
8086 /* this pointer prefers to be pointed to probe response data
8087 * but is always valid
8089 ies = rcu_dereference(res->ies);
8091 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
8093 goto fail_unlock_rcu;
8094 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
8095 ies->len, ies->data))
8096 goto fail_unlock_rcu;
8099 /* and this pointer is always (unless driver didn't know) beacon data */
8100 ies = rcu_dereference(res->beacon_ies);
8101 if (ies && ies->from_beacon) {
8102 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
8104 goto fail_unlock_rcu;
8105 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
8106 ies->len, ies->data))
8107 goto fail_unlock_rcu;
8111 if (res->beacon_interval &&
8112 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
8113 goto nla_put_failure;
8114 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
8115 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
8116 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
8117 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
8118 jiffies_to_msecs(jiffies - intbss->ts)))
8119 goto nla_put_failure;
8121 if (intbss->parent_tsf &&
8122 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
8123 intbss->parent_tsf, NL80211_BSS_PAD) ||
8124 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
8125 intbss->parent_bssid)))
8126 goto nla_put_failure;
8128 if (intbss->ts_boottime &&
8129 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
8130 intbss->ts_boottime, NL80211_BSS_PAD))
8131 goto nla_put_failure;
8133 if (!nl80211_put_signal(msg, intbss->pub.chains,
8134 intbss->pub.chain_signal,
8135 NL80211_BSS_CHAIN_SIGNAL))
8136 goto nla_put_failure;
8138 switch (rdev->wiphy.signal_type) {
8139 case CFG80211_SIGNAL_TYPE_MBM:
8140 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
8141 goto nla_put_failure;
8143 case CFG80211_SIGNAL_TYPE_UNSPEC:
8144 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
8145 goto nla_put_failure;
8151 switch (wdev->iftype) {
8152 case NL80211_IFTYPE_P2P_CLIENT:
8153 case NL80211_IFTYPE_STATION:
8154 if (intbss == wdev->current_bss &&
8155 nla_put_u32(msg, NL80211_BSS_STATUS,
8156 NL80211_BSS_STATUS_ASSOCIATED))
8157 goto nla_put_failure;
8159 case NL80211_IFTYPE_ADHOC:
8160 if (intbss == wdev->current_bss &&
8161 nla_put_u32(msg, NL80211_BSS_STATUS,
8162 NL80211_BSS_STATUS_IBSS_JOINED))
8163 goto nla_put_failure;
8169 nla_nest_end(msg, bss);
8171 genlmsg_end(msg, hdr);
8177 genlmsg_cancel(msg, hdr);
8181 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
8183 struct cfg80211_registered_device *rdev;
8184 struct cfg80211_internal_bss *scan;
8185 struct wireless_dev *wdev;
8186 int start = cb->args[2], idx = 0;
8190 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
8197 spin_lock_bh(&rdev->bss_lock);
8200 * dump_scan will be called multiple times to break up the scan results
8201 * into multiple messages. It is unlikely that any more bss-es will be
8202 * expired after the first call, so only call only call this on the
8203 * first dump_scan invocation.
8206 cfg80211_bss_expire(rdev);
8208 cb->seq = rdev->bss_generation;
8210 list_for_each_entry(scan, &rdev->bss_list, list) {
8213 if (nl80211_send_bss(skb, cb,
8214 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8215 rdev, wdev, scan) < 0) {
8221 spin_unlock_bh(&rdev->bss_lock);
8230 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
8231 int flags, struct net_device *dev,
8232 bool allow_radio_stats,
8233 struct survey_info *survey)
8236 struct nlattr *infoattr;
8238 /* skip radio stats if userspace didn't request them */
8239 if (!survey->channel && !allow_radio_stats)
8242 hdr = nl80211hdr_put(msg, portid, seq, flags,
8243 NL80211_CMD_NEW_SURVEY_RESULTS);
8247 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
8248 goto nla_put_failure;
8250 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
8252 goto nla_put_failure;
8254 if (survey->channel &&
8255 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
8256 survey->channel->center_freq))
8257 goto nla_put_failure;
8259 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
8260 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
8261 goto nla_put_failure;
8262 if ((survey->filled & SURVEY_INFO_IN_USE) &&
8263 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
8264 goto nla_put_failure;
8265 if ((survey->filled & SURVEY_INFO_TIME) &&
8266 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
8267 survey->time, NL80211_SURVEY_INFO_PAD))
8268 goto nla_put_failure;
8269 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
8270 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
8271 survey->time_busy, NL80211_SURVEY_INFO_PAD))
8272 goto nla_put_failure;
8273 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
8274 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
8275 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
8276 goto nla_put_failure;
8277 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
8278 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
8279 survey->time_rx, NL80211_SURVEY_INFO_PAD))
8280 goto nla_put_failure;
8281 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
8282 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
8283 survey->time_tx, NL80211_SURVEY_INFO_PAD))
8284 goto nla_put_failure;
8285 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
8286 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
8287 survey->time_scan, NL80211_SURVEY_INFO_PAD))
8288 goto nla_put_failure;
8290 nla_nest_end(msg, infoattr);
8292 genlmsg_end(msg, hdr);
8296 genlmsg_cancel(msg, hdr);
8300 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
8302 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8303 struct survey_info survey;
8304 struct cfg80211_registered_device *rdev;
8305 struct wireless_dev *wdev;
8306 int survey_idx = cb->args[2];
8311 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
8315 /* prepare_wdev_dump parsed the attributes */
8316 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
8318 if (!wdev->netdev) {
8323 if (!rdev->ops->dump_survey) {
8329 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
8335 /* don't send disabled channels, but do send non-channel data */
8336 if (survey.channel &&
8337 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
8342 if (nl80211_send_survey(skb,
8343 NETLINK_CB(cb->skb).portid,
8344 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8345 wdev->netdev, radio_stats, &survey) < 0)
8351 cb->args[2] = survey_idx;
8358 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
8360 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
8361 NL80211_WPA_VERSION_2));
8364 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
8366 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8367 struct net_device *dev = info->user_ptr[1];
8368 struct ieee80211_channel *chan;
8369 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
8370 int err, ssid_len, ie_len = 0, auth_data_len = 0;
8371 enum nl80211_auth_type auth_type;
8372 struct key_parse key;
8373 bool local_state_change;
8375 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8378 if (!info->attrs[NL80211_ATTR_MAC])
8381 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
8384 if (!info->attrs[NL80211_ATTR_SSID])
8387 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8390 err = nl80211_parse_key(info, &key);
8395 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
8397 if (!key.p.key || !key.p.key_len)
8399 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
8400 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
8401 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
8402 key.p.key_len != WLAN_KEY_LEN_WEP104))
8415 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
8416 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
8425 if (!rdev->ops->auth)
8428 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8429 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8432 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8433 chan = nl80211_get_valid_chan(&rdev->wiphy,
8434 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8438 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8439 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8441 if (info->attrs[NL80211_ATTR_IE]) {
8442 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8443 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8446 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8447 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
8450 if ((auth_type == NL80211_AUTHTYPE_SAE ||
8451 auth_type == NL80211_AUTHTYPE_FILS_SK ||
8452 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
8453 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
8454 !info->attrs[NL80211_ATTR_AUTH_DATA])
8457 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
8458 if (auth_type != NL80211_AUTHTYPE_SAE &&
8459 auth_type != NL80211_AUTHTYPE_FILS_SK &&
8460 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
8461 auth_type != NL80211_AUTHTYPE_FILS_PK)
8463 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
8464 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
8465 /* need to include at least Auth Transaction and Status Code */
8466 if (auth_data_len < 4)
8470 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8473 * Since we no longer track auth state, ignore
8474 * requests to only change local state.
8476 if (local_state_change)
8479 wdev_lock(dev->ieee80211_ptr);
8480 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
8481 ssid, ssid_len, ie, ie_len,
8482 key.p.key, key.p.key_len, key.idx,
8483 auth_data, auth_data_len);
8484 wdev_unlock(dev->ieee80211_ptr);
8488 static int validate_pae_over_nl80211(struct cfg80211_registered_device *rdev,
8489 struct genl_info *info)
8491 if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8492 GENL_SET_ERR_MSG(info, "SOCKET_OWNER not set");
8496 if (!rdev->ops->tx_control_port ||
8497 !wiphy_ext_feature_isset(&rdev->wiphy,
8498 NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
8504 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
8505 struct genl_info *info,
8506 struct cfg80211_crypto_settings *settings,
8509 memset(settings, 0, sizeof(*settings));
8511 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8513 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8516 proto = nla_get_u16(
8517 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8518 settings->control_port_ethertype = cpu_to_be16(proto);
8519 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8522 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8523 settings->control_port_no_encrypt = true;
8525 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8527 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
8528 int r = validate_pae_over_nl80211(rdev, info);
8533 settings->control_port_over_nl80211 = true;
8536 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8540 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8541 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8542 settings->n_ciphers_pairwise = len / sizeof(u32);
8544 if (len % sizeof(u32))
8547 if (settings->n_ciphers_pairwise > cipher_limit)
8550 memcpy(settings->ciphers_pairwise, data, len);
8552 for (i = 0; i < settings->n_ciphers_pairwise; i++)
8553 if (!cfg80211_supported_cipher_suite(
8555 settings->ciphers_pairwise[i]))
8559 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8560 settings->cipher_group =
8561 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
8562 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8563 settings->cipher_group))
8567 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8568 settings->wpa_versions =
8569 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8570 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8574 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8578 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8579 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8580 settings->n_akm_suites = len / sizeof(u32);
8582 if (len % sizeof(u32))
8585 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8588 memcpy(settings->akm_suites, data, len);
8591 if (info->attrs[NL80211_ATTR_PMK]) {
8592 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
8594 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8595 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
8597 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
8603 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8606 struct net_device *dev = info->user_ptr[1];
8607 struct ieee80211_channel *chan;
8608 struct cfg80211_assoc_request req = {};
8609 const u8 *bssid, *ssid;
8610 int err, ssid_len = 0;
8612 if (dev->ieee80211_ptr->conn_owner_nlportid &&
8613 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
8616 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8619 if (!info->attrs[NL80211_ATTR_MAC] ||
8620 !info->attrs[NL80211_ATTR_SSID] ||
8621 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
8624 if (!rdev->ops->assoc)
8627 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8628 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8631 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8633 chan = nl80211_get_valid_chan(&rdev->wiphy,
8634 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8638 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8639 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8641 if (info->attrs[NL80211_ATTR_IE]) {
8642 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8643 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8646 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8647 enum nl80211_mfp mfp =
8648 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8649 if (mfp == NL80211_MFP_REQUIRED)
8651 else if (mfp != NL80211_MFP_NO)
8655 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8656 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8658 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8659 req.flags |= ASSOC_REQ_DISABLE_HT;
8661 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8662 memcpy(&req.ht_capa_mask,
8663 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8664 sizeof(req.ht_capa_mask));
8666 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8667 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8669 memcpy(&req.ht_capa,
8670 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8671 sizeof(req.ht_capa));
8674 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8675 req.flags |= ASSOC_REQ_DISABLE_VHT;
8677 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8678 memcpy(&req.vht_capa_mask,
8679 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8680 sizeof(req.vht_capa_mask));
8682 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8683 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8685 memcpy(&req.vht_capa,
8686 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8687 sizeof(req.vht_capa));
8690 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8691 if (!((rdev->wiphy.features &
8692 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8693 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8694 !wiphy_ext_feature_isset(&rdev->wiphy,
8695 NL80211_EXT_FEATURE_RRM))
8697 req.flags |= ASSOC_REQ_USE_RRM;
8700 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8701 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8702 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8703 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8706 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8709 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
8711 wdev_lock(dev->ieee80211_ptr);
8713 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8714 ssid, ssid_len, &req);
8716 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8717 dev->ieee80211_ptr->conn_owner_nlportid =
8719 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8723 wdev_unlock(dev->ieee80211_ptr);
8729 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8732 struct net_device *dev = info->user_ptr[1];
8733 const u8 *ie = NULL, *bssid;
8734 int ie_len = 0, err;
8736 bool local_state_change;
8738 if (dev->ieee80211_ptr->conn_owner_nlportid &&
8739 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
8742 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8745 if (!info->attrs[NL80211_ATTR_MAC])
8748 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8751 if (!rdev->ops->deauth)
8754 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8755 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8758 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8760 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8761 if (reason_code == 0) {
8762 /* Reason Code 0 is reserved */
8766 if (info->attrs[NL80211_ATTR_IE]) {
8767 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8768 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8771 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8773 wdev_lock(dev->ieee80211_ptr);
8774 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8775 local_state_change);
8776 wdev_unlock(dev->ieee80211_ptr);
8780 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8782 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8783 struct net_device *dev = info->user_ptr[1];
8784 const u8 *ie = NULL, *bssid;
8785 int ie_len = 0, err;
8787 bool local_state_change;
8789 if (dev->ieee80211_ptr->conn_owner_nlportid &&
8790 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
8793 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8796 if (!info->attrs[NL80211_ATTR_MAC])
8799 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8802 if (!rdev->ops->disassoc)
8805 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8806 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8809 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8811 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8812 if (reason_code == 0) {
8813 /* Reason Code 0 is reserved */
8817 if (info->attrs[NL80211_ATTR_IE]) {
8818 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8819 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8822 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8824 wdev_lock(dev->ieee80211_ptr);
8825 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8826 local_state_change);
8827 wdev_unlock(dev->ieee80211_ptr);
8832 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
8833 int mcast_rate[NUM_NL80211_BANDS],
8836 struct wiphy *wiphy = &rdev->wiphy;
8840 for (band = 0; band < NUM_NL80211_BANDS; band++) {
8841 struct ieee80211_supported_band *sband;
8843 sband = wiphy->bands[band];
8847 for (i = 0; i < sband->n_bitrates; i++) {
8848 if (sband->bitrates[i].bitrate == rateval) {
8849 mcast_rate[band] = i + 1;
8859 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8862 struct net_device *dev = info->user_ptr[1];
8863 struct cfg80211_ibss_params ibss;
8864 struct wiphy *wiphy;
8865 struct cfg80211_cached_keys *connkeys = NULL;
8868 memset(&ibss, 0, sizeof(ibss));
8870 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8873 if (!info->attrs[NL80211_ATTR_SSID] ||
8874 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8877 ibss.beacon_interval = 100;
8879 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8880 ibss.beacon_interval =
8881 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8883 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8884 ibss.beacon_interval);
8888 if (!rdev->ops->join_ibss)
8891 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8894 wiphy = &rdev->wiphy;
8896 if (info->attrs[NL80211_ATTR_MAC]) {
8897 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8899 if (!is_valid_ether_addr(ibss.bssid))
8902 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8903 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8905 if (info->attrs[NL80211_ATTR_IE]) {
8906 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8907 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8910 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8914 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8915 NL80211_IFTYPE_ADHOC))
8918 switch (ibss.chandef.width) {
8919 case NL80211_CHAN_WIDTH_5:
8920 case NL80211_CHAN_WIDTH_10:
8921 case NL80211_CHAN_WIDTH_20_NOHT:
8923 case NL80211_CHAN_WIDTH_20:
8924 case NL80211_CHAN_WIDTH_40:
8925 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8928 case NL80211_CHAN_WIDTH_80:
8929 case NL80211_CHAN_WIDTH_80P80:
8930 case NL80211_CHAN_WIDTH_160:
8931 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8933 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8934 NL80211_EXT_FEATURE_VHT_IBSS))
8941 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
8942 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8944 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8946 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8948 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8949 struct ieee80211_supported_band *sband =
8950 wiphy->bands[ibss.chandef.chan->band];
8952 err = ieee80211_get_ratemask(sband, rates, n_rates,
8958 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8959 memcpy(&ibss.ht_capa_mask,
8960 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8961 sizeof(ibss.ht_capa_mask));
8963 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8964 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8966 memcpy(&ibss.ht_capa,
8967 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8968 sizeof(ibss.ht_capa));
8971 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8972 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8973 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8976 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8979 connkeys = nl80211_parse_connkeys(rdev, info, &no_ht);
8980 if (IS_ERR(connkeys))
8981 return PTR_ERR(connkeys);
8983 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8991 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8993 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
8994 int r = validate_pae_over_nl80211(rdev, info);
8999 ibss.control_port_over_nl80211 = true;
9002 ibss.userspace_handles_dfs =
9003 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
9005 wdev_lock(dev->ieee80211_ptr);
9006 err = __cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
9009 else if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
9010 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9011 wdev_unlock(dev->ieee80211_ptr);
9016 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
9018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9019 struct net_device *dev = info->user_ptr[1];
9021 if (!rdev->ops->leave_ibss)
9024 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
9027 return cfg80211_leave_ibss(rdev, dev, false);
9030 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
9032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9033 struct net_device *dev = info->user_ptr[1];
9034 int mcast_rate[NUM_NL80211_BANDS];
9038 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
9039 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
9040 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
9043 if (!rdev->ops->set_mcast_rate)
9046 memset(mcast_rate, 0, sizeof(mcast_rate));
9048 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
9051 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
9052 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
9055 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
9060 static struct sk_buff *
9061 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
9062 struct wireless_dev *wdev, int approxlen,
9063 u32 portid, u32 seq, enum nl80211_commands cmd,
9064 enum nl80211_attrs attr,
9065 const struct nl80211_vendor_cmd_info *info,
9068 struct sk_buff *skb;
9070 struct nlattr *data;
9072 skb = nlmsg_new(approxlen + 100, gfp);
9076 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
9082 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9083 goto nla_put_failure;
9086 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
9088 goto nla_put_failure;
9089 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
9091 goto nla_put_failure;
9095 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
9096 wdev_id(wdev), NL80211_ATTR_PAD))
9097 goto nla_put_failure;
9099 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
9100 wdev->netdev->ifindex))
9101 goto nla_put_failure;
9104 data = nla_nest_start(skb, attr);
9106 goto nla_put_failure;
9108 ((void **)skb->cb)[0] = rdev;
9109 ((void **)skb->cb)[1] = hdr;
9110 ((void **)skb->cb)[2] = data;
9119 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
9120 struct wireless_dev *wdev,
9121 enum nl80211_commands cmd,
9122 enum nl80211_attrs attr,
9123 int vendor_event_idx,
9124 int approxlen, gfp_t gfp)
9126 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9127 const struct nl80211_vendor_cmd_info *info;
9130 case NL80211_CMD_TESTMODE:
9131 if (WARN_ON(vendor_event_idx != -1))
9135 case NL80211_CMD_VENDOR:
9136 if (WARN_ON(vendor_event_idx < 0 ||
9137 vendor_event_idx >= wiphy->n_vendor_events))
9139 info = &wiphy->vendor_events[vendor_event_idx];
9146 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
9147 cmd, attr, info, gfp);
9149 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
9151 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
9153 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9154 void *hdr = ((void **)skb->cb)[1];
9155 struct nlattr *data = ((void **)skb->cb)[2];
9156 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
9158 /* clear CB data for netlink core to own from now on */
9159 memset(skb->cb, 0, sizeof(skb->cb));
9161 nla_nest_end(skb, data);
9162 genlmsg_end(skb, hdr);
9164 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
9165 mcgrp = NL80211_MCGRP_VENDOR;
9167 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
9170 EXPORT_SYMBOL(__cfg80211_send_event_skb);
9172 #ifdef CONFIG_NL80211_TESTMODE
9173 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
9175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9176 struct wireless_dev *wdev =
9177 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9180 if (!rdev->ops->testmode_cmd)
9184 err = PTR_ERR(wdev);
9188 } else if (wdev->wiphy != &rdev->wiphy) {
9192 if (!info->attrs[NL80211_ATTR_TESTDATA])
9195 rdev->cur_cmd_info = info;
9196 err = rdev_testmode_cmd(rdev, wdev,
9197 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
9198 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
9199 rdev->cur_cmd_info = NULL;
9204 static int nl80211_testmode_dump(struct sk_buff *skb,
9205 struct netlink_callback *cb)
9207 struct cfg80211_registered_device *rdev;
9217 * 0 is a valid index, but not valid for args[0],
9218 * so we need to offset by 1.
9220 phy_idx = cb->args[0] - 1;
9222 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
9228 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
9230 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
9231 attrbuf, nl80211_fam.maxattr,
9232 nl80211_policy, NULL);
9236 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
9238 err = PTR_ERR(rdev);
9241 phy_idx = rdev->wiphy_idx;
9243 if (attrbuf[NL80211_ATTR_TESTDATA])
9244 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
9248 data = nla_data((void *)cb->args[1]);
9249 data_len = nla_len((void *)cb->args[1]);
9252 if (!rdev->ops->testmode_dump) {
9258 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
9259 cb->nlh->nlmsg_seq, NLM_F_MULTI,
9260 NL80211_CMD_TESTMODE);
9261 struct nlattr *tmdata;
9266 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
9267 genlmsg_cancel(skb, hdr);
9271 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
9273 genlmsg_cancel(skb, hdr);
9276 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
9277 nla_nest_end(skb, tmdata);
9279 if (err == -ENOBUFS || err == -ENOENT) {
9280 genlmsg_cancel(skb, hdr);
9283 genlmsg_cancel(skb, hdr);
9287 genlmsg_end(skb, hdr);
9292 cb->args[0] = phy_idx + 1;
9299 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
9301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9302 struct net_device *dev = info->user_ptr[1];
9303 struct cfg80211_connect_params connect;
9304 struct wiphy *wiphy;
9305 struct cfg80211_cached_keys *connkeys = NULL;
9308 memset(&connect, 0, sizeof(connect));
9310 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9313 if (!info->attrs[NL80211_ATTR_SSID] ||
9314 !nla_len(info->attrs[NL80211_ATTR_SSID]))
9317 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
9319 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
9320 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
9321 NL80211_CMD_CONNECT))
9324 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
9326 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
9328 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
9329 !wiphy_ext_feature_isset(&rdev->wiphy,
9330 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
9332 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
9334 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
9335 NL80211_MAX_NR_CIPHER_SUITES);
9339 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9340 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9343 wiphy = &rdev->wiphy;
9345 connect.bg_scan_period = -1;
9346 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
9347 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
9348 connect.bg_scan_period =
9349 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
9352 if (info->attrs[NL80211_ATTR_MAC])
9353 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9354 else if (info->attrs[NL80211_ATTR_MAC_HINT])
9355 connect.bssid_hint =
9356 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
9357 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9358 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9360 if (info->attrs[NL80211_ATTR_IE]) {
9361 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9362 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9365 if (info->attrs[NL80211_ATTR_USE_MFP]) {
9366 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
9367 if (connect.mfp == NL80211_MFP_OPTIONAL &&
9368 !wiphy_ext_feature_isset(&rdev->wiphy,
9369 NL80211_EXT_FEATURE_MFP_OPTIONAL))
9372 if (connect.mfp != NL80211_MFP_REQUIRED &&
9373 connect.mfp != NL80211_MFP_NO &&
9374 connect.mfp != NL80211_MFP_OPTIONAL)
9377 connect.mfp = NL80211_MFP_NO;
9380 if (info->attrs[NL80211_ATTR_PREV_BSSID])
9381 connect.prev_bssid =
9382 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
9384 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9385 connect.channel = nl80211_get_valid_chan(
9386 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
9387 if (!connect.channel)
9389 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
9390 connect.channel_hint = nl80211_get_valid_chan(
9391 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
9392 if (!connect.channel_hint)
9396 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
9397 connkeys = nl80211_parse_connkeys(rdev, info, NULL);
9398 if (IS_ERR(connkeys))
9399 return PTR_ERR(connkeys);
9402 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
9403 connect.flags |= ASSOC_REQ_DISABLE_HT;
9405 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
9406 memcpy(&connect.ht_capa_mask,
9407 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
9408 sizeof(connect.ht_capa_mask));
9410 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
9411 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
9415 memcpy(&connect.ht_capa,
9416 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
9417 sizeof(connect.ht_capa));
9420 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
9421 connect.flags |= ASSOC_REQ_DISABLE_VHT;
9423 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
9424 memcpy(&connect.vht_capa_mask,
9425 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
9426 sizeof(connect.vht_capa_mask));
9428 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
9429 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
9433 memcpy(&connect.vht_capa,
9434 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
9435 sizeof(connect.vht_capa));
9438 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
9439 if (!((rdev->wiphy.features &
9440 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
9441 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
9442 !wiphy_ext_feature_isset(&rdev->wiphy,
9443 NL80211_EXT_FEATURE_RRM)) {
9447 connect.flags |= ASSOC_REQ_USE_RRM;
9450 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
9451 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
9456 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
9457 /* bss selection makes no sense if bssid is set */
9458 if (connect.bssid) {
9463 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
9464 wiphy, &connect.bss_select);
9471 if (wiphy_ext_feature_isset(&rdev->wiphy,
9472 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
9473 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9474 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9475 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9476 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9477 connect.fils_erp_username =
9478 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9479 connect.fils_erp_username_len =
9480 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9481 connect.fils_erp_realm =
9482 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9483 connect.fils_erp_realm_len =
9484 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9485 connect.fils_erp_next_seq_num =
9487 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9488 connect.fils_erp_rrk =
9489 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9490 connect.fils_erp_rrk_len =
9491 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9492 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9493 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9494 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9495 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9500 if (nla_get_flag(info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])) {
9501 if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9503 GENL_SET_ERR_MSG(info,
9504 "external auth requires connection ownership");
9507 connect.flags |= CONNECT_REQ_EXTERNAL_AUTH_SUPPORT;
9510 wdev_lock(dev->ieee80211_ptr);
9512 err = cfg80211_connect(rdev, dev, &connect, connkeys,
9513 connect.prev_bssid);
9517 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9518 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9520 memcpy(dev->ieee80211_ptr->disconnect_bssid,
9521 connect.bssid, ETH_ALEN);
9523 memset(dev->ieee80211_ptr->disconnect_bssid,
9527 wdev_unlock(dev->ieee80211_ptr);
9532 static int nl80211_update_connect_params(struct sk_buff *skb,
9533 struct genl_info *info)
9535 struct cfg80211_connect_params connect = {};
9536 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9537 struct net_device *dev = info->user_ptr[1];
9538 struct wireless_dev *wdev = dev->ieee80211_ptr;
9539 bool fils_sk_offload;
9544 if (!rdev->ops->update_connect_params)
9547 if (info->attrs[NL80211_ATTR_IE]) {
9548 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9550 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9551 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9552 changed |= UPDATE_ASSOC_IES;
9555 fils_sk_offload = wiphy_ext_feature_isset(&rdev->wiphy,
9556 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD);
9559 * when driver supports fils-sk offload all attributes must be
9560 * provided. So the else covers "fils-sk-not-all" and
9563 if (fils_sk_offload &&
9564 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9565 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9566 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9567 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9568 connect.fils_erp_username =
9569 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9570 connect.fils_erp_username_len =
9571 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9572 connect.fils_erp_realm =
9573 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9574 connect.fils_erp_realm_len =
9575 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9576 connect.fils_erp_next_seq_num =
9578 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9579 connect.fils_erp_rrk =
9580 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9581 connect.fils_erp_rrk_len =
9582 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9583 changed |= UPDATE_FILS_ERP_INFO;
9584 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9585 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9586 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9587 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9591 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
9592 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
9593 if (!nl80211_valid_auth_type(rdev, auth_type,
9594 NL80211_CMD_CONNECT))
9597 if (auth_type == NL80211_AUTHTYPE_FILS_SK &&
9598 fils_sk_offload && !(changed & UPDATE_FILS_ERP_INFO))
9601 connect.auth_type = auth_type;
9602 changed |= UPDATE_AUTH_TYPE;
9605 wdev_lock(dev->ieee80211_ptr);
9606 if (!wdev->current_bss)
9609 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
9610 wdev_unlock(dev->ieee80211_ptr);
9615 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
9617 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9618 struct net_device *dev = info->user_ptr[1];
9622 if (dev->ieee80211_ptr->conn_owner_nlportid &&
9623 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
9626 if (!info->attrs[NL80211_ATTR_REASON_CODE])
9627 reason = WLAN_REASON_DEAUTH_LEAVING;
9629 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
9634 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9635 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9638 wdev_lock(dev->ieee80211_ptr);
9639 ret = cfg80211_disconnect(rdev, dev, reason, true);
9640 wdev_unlock(dev->ieee80211_ptr);
9644 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
9646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9650 if (info->attrs[NL80211_ATTR_PID]) {
9651 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
9653 net = get_net_ns_by_pid(pid);
9654 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
9655 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
9657 net = get_net_ns_by_fd(fd);
9663 return PTR_ERR(net);
9667 /* check if anything to do */
9668 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9669 err = cfg80211_switch_netns(rdev, net);
9675 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9678 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9679 struct cfg80211_pmksa *pmksa) = NULL;
9680 struct net_device *dev = info->user_ptr[1];
9681 struct cfg80211_pmksa pmksa;
9683 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9685 if (!info->attrs[NL80211_ATTR_PMKID])
9688 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
9690 if (info->attrs[NL80211_ATTR_MAC]) {
9691 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9692 } else if (info->attrs[NL80211_ATTR_SSID] &&
9693 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
9694 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
9695 info->attrs[NL80211_ATTR_PMK])) {
9696 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9697 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9699 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
9703 if (info->attrs[NL80211_ATTR_PMK]) {
9704 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
9705 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
9708 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9709 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9712 switch (info->genlhdr->cmd) {
9713 case NL80211_CMD_SET_PMKSA:
9714 rdev_ops = rdev->ops->set_pmksa;
9716 case NL80211_CMD_DEL_PMKSA:
9717 rdev_ops = rdev->ops->del_pmksa;
9727 return rdev_ops(&rdev->wiphy, dev, &pmksa);
9730 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9733 struct net_device *dev = info->user_ptr[1];
9735 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9736 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9739 if (!rdev->ops->flush_pmksa)
9742 return rdev_flush_pmksa(rdev, dev);
9745 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9748 struct net_device *dev = info->user_ptr[1];
9749 u8 action_code, dialog_token;
9750 u32 peer_capability = 0;
9755 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9756 !rdev->ops->tdls_mgmt)
9759 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9760 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9761 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9762 !info->attrs[NL80211_ATTR_IE] ||
9763 !info->attrs[NL80211_ATTR_MAC])
9766 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9767 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9768 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9769 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
9770 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
9771 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9773 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
9775 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
9776 dialog_token, status_code, peer_capability,
9778 nla_data(info->attrs[NL80211_ATTR_IE]),
9779 nla_len(info->attrs[NL80211_ATTR_IE]));
9782 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9785 struct net_device *dev = info->user_ptr[1];
9786 enum nl80211_tdls_operation operation;
9789 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9790 !rdev->ops->tdls_oper)
9793 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9794 !info->attrs[NL80211_ATTR_MAC])
9797 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9798 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9800 return rdev_tdls_oper(rdev, dev, peer, operation);
9803 static int nl80211_remain_on_channel(struct sk_buff *skb,
9804 struct genl_info *info)
9806 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9807 struct wireless_dev *wdev = info->user_ptr[1];
9808 struct cfg80211_chan_def chandef;
9809 const struct cfg80211_chan_def *compat_chandef;
9810 struct sk_buff *msg;
9816 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9817 !info->attrs[NL80211_ATTR_DURATION])
9820 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9822 if (!rdev->ops->remain_on_channel ||
9823 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9827 * We should be on that channel for at least a minimum amount of
9828 * time (10ms) but no longer than the driver supports.
9830 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9831 duration > rdev->wiphy.max_remain_on_channel_duration)
9834 err = nl80211_parse_chandef(rdev, info, &chandef);
9839 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9840 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9841 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9843 if (compat_chandef != &chandef) {
9850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9854 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9855 NL80211_CMD_REMAIN_ON_CHANNEL);
9861 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9867 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9869 goto nla_put_failure;
9871 genlmsg_end(msg, hdr);
9873 return genlmsg_reply(msg, info);
9882 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9883 struct genl_info *info)
9885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9886 struct wireless_dev *wdev = info->user_ptr[1];
9889 if (!info->attrs[NL80211_ATTR_COOKIE])
9892 if (!rdev->ops->cancel_remain_on_channel)
9895 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9897 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9900 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9901 struct genl_info *info)
9903 struct cfg80211_bitrate_mask mask;
9904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9905 struct net_device *dev = info->user_ptr[1];
9908 if (!rdev->ops->set_bitrate_mask)
9911 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9915 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
9918 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
9920 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9921 struct wireless_dev *wdev = info->user_ptr[1];
9922 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
9924 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9927 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9928 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
9930 switch (wdev->iftype) {
9931 case NL80211_IFTYPE_STATION:
9932 case NL80211_IFTYPE_ADHOC:
9933 case NL80211_IFTYPE_P2P_CLIENT:
9934 case NL80211_IFTYPE_AP:
9935 case NL80211_IFTYPE_AP_VLAN:
9936 case NL80211_IFTYPE_MESH_POINT:
9937 case NL80211_IFTYPE_P2P_GO:
9938 case NL80211_IFTYPE_P2P_DEVICE:
9940 case NL80211_IFTYPE_NAN:
9945 /* not much point in registering if we can't reply */
9946 if (!rdev->ops->mgmt_tx)
9949 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
9950 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9951 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
9954 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
9956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9957 struct wireless_dev *wdev = info->user_ptr[1];
9958 struct cfg80211_chan_def chandef;
9962 struct sk_buff *msg = NULL;
9963 struct cfg80211_mgmt_tx_params params = {
9964 .dont_wait_for_ack =
9965 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9968 if (!info->attrs[NL80211_ATTR_FRAME])
9971 if (!rdev->ops->mgmt_tx)
9974 switch (wdev->iftype) {
9975 case NL80211_IFTYPE_P2P_DEVICE:
9976 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9978 case NL80211_IFTYPE_STATION:
9979 case NL80211_IFTYPE_ADHOC:
9980 case NL80211_IFTYPE_P2P_CLIENT:
9981 case NL80211_IFTYPE_AP:
9982 case NL80211_IFTYPE_AP_VLAN:
9983 case NL80211_IFTYPE_MESH_POINT:
9984 case NL80211_IFTYPE_P2P_GO:
9986 case NL80211_IFTYPE_NAN:
9991 if (info->attrs[NL80211_ATTR_DURATION]) {
9992 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9994 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9997 * We should wait on the channel for at least a minimum amount
9998 * of time (10ms) but no longer than the driver supports.
10000 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
10001 params.wait > rdev->wiphy.max_remain_on_channel_duration)
10005 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
10007 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
10010 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
10012 /* get the channel if any has been specified, otherwise pass NULL to
10013 * the driver. The latter will use the current one
10015 chandef.chan = NULL;
10016 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
10017 err = nl80211_parse_chandef(rdev, info, &chandef);
10022 if (!chandef.chan && params.offchan)
10026 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
10032 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
10033 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
10035 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
10036 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
10039 if (len % sizeof(u16))
10042 params.n_csa_offsets = len / sizeof(u16);
10043 params.csa_offsets =
10044 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
10046 /* check that all the offsets fit the frame */
10047 for (i = 0; i < params.n_csa_offsets; i++) {
10048 if (params.csa_offsets[i] >= params.len)
10053 if (!params.dont_wait_for_ack) {
10054 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10058 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10059 NL80211_CMD_FRAME);
10066 params.chan = chandef.chan;
10067 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
10072 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10074 goto nla_put_failure;
10076 genlmsg_end(msg, hdr);
10077 return genlmsg_reply(msg, info);
10089 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
10091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10092 struct wireless_dev *wdev = info->user_ptr[1];
10095 if (!info->attrs[NL80211_ATTR_COOKIE])
10098 if (!rdev->ops->mgmt_tx_cancel_wait)
10099 return -EOPNOTSUPP;
10101 switch (wdev->iftype) {
10102 case NL80211_IFTYPE_STATION:
10103 case NL80211_IFTYPE_ADHOC:
10104 case NL80211_IFTYPE_P2P_CLIENT:
10105 case NL80211_IFTYPE_AP:
10106 case NL80211_IFTYPE_AP_VLAN:
10107 case NL80211_IFTYPE_P2P_GO:
10108 case NL80211_IFTYPE_P2P_DEVICE:
10110 case NL80211_IFTYPE_NAN:
10112 return -EOPNOTSUPP;
10115 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
10117 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
10120 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
10122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10123 struct wireless_dev *wdev;
10124 struct net_device *dev = info->user_ptr[1];
10129 if (!info->attrs[NL80211_ATTR_PS_STATE])
10132 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
10134 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
10137 wdev = dev->ieee80211_ptr;
10139 if (!rdev->ops->set_power_mgmt)
10140 return -EOPNOTSUPP;
10142 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
10144 if (state == wdev->ps)
10147 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
10153 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
10155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10156 enum nl80211_ps_state ps_state;
10157 struct wireless_dev *wdev;
10158 struct net_device *dev = info->user_ptr[1];
10159 struct sk_buff *msg;
10163 wdev = dev->ieee80211_ptr;
10165 if (!rdev->ops->set_power_mgmt)
10166 return -EOPNOTSUPP;
10168 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10172 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10173 NL80211_CMD_GET_POWER_SAVE);
10180 ps_state = NL80211_PS_ENABLED;
10182 ps_state = NL80211_PS_DISABLED;
10184 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
10185 goto nla_put_failure;
10187 genlmsg_end(msg, hdr);
10188 return genlmsg_reply(msg, info);
10197 static const struct nla_policy
10198 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
10199 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
10200 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
10201 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
10202 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
10203 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
10204 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
10205 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
10208 static int nl80211_set_cqm_txe(struct genl_info *info,
10209 u32 rate, u32 pkts, u32 intvl)
10211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10212 struct net_device *dev = info->user_ptr[1];
10213 struct wireless_dev *wdev = dev->ieee80211_ptr;
10215 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
10218 if (!rdev->ops->set_cqm_txe_config)
10219 return -EOPNOTSUPP;
10221 if (wdev->iftype != NL80211_IFTYPE_STATION &&
10222 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
10223 return -EOPNOTSUPP;
10225 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
10228 static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
10229 struct net_device *dev)
10231 struct wireless_dev *wdev = dev->ieee80211_ptr;
10232 s32 last, low, high;
10234 int i, n, low_index;
10237 /* RSSI reporting disabled? */
10238 if (!wdev->cqm_config)
10239 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
10242 * Obtain current RSSI value if possible, if not and no RSSI threshold
10243 * event has been received yet, we should receive an event after a
10244 * connection is established and enough beacons received to calculate
10247 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
10248 rdev->ops->get_station) {
10249 struct station_info sinfo = {};
10252 mac_addr = wdev->current_bss->pub.bssid;
10254 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
10258 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
10259 wdev->cqm_config->last_rssi_event_value =
10260 (s8) sinfo.rx_beacon_signal_avg;
10263 last = wdev->cqm_config->last_rssi_event_value;
10264 hyst = wdev->cqm_config->rssi_hyst;
10265 n = wdev->cqm_config->n_rssi_thresholds;
10267 for (i = 0; i < n; i++)
10268 if (last < wdev->cqm_config->rssi_thresholds[i])
10272 if (low_index >= 0) {
10273 low_index = array_index_nospec(low_index, n);
10274 low = wdev->cqm_config->rssi_thresholds[low_index] - hyst;
10279 i = array_index_nospec(i, n);
10280 high = wdev->cqm_config->rssi_thresholds[i] + hyst - 1;
10285 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
10288 static int nl80211_set_cqm_rssi(struct genl_info *info,
10289 const s32 *thresholds, int n_thresholds,
10292 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10293 struct net_device *dev = info->user_ptr[1];
10294 struct wireless_dev *wdev = dev->ieee80211_ptr;
10296 s32 prev = S32_MIN;
10298 /* Check all values negative and sorted */
10299 for (i = 0; i < n_thresholds; i++) {
10300 if (thresholds[i] > 0 || thresholds[i] <= prev)
10303 prev = thresholds[i];
10306 if (wdev->iftype != NL80211_IFTYPE_STATION &&
10307 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
10308 return -EOPNOTSUPP;
10311 cfg80211_cqm_config_free(wdev);
10314 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
10315 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
10316 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
10318 return rdev_set_cqm_rssi_config(rdev, dev,
10319 thresholds[0], hysteresis);
10322 if (!wiphy_ext_feature_isset(&rdev->wiphy,
10323 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
10324 return -EOPNOTSUPP;
10326 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
10330 if (n_thresholds) {
10331 struct cfg80211_cqm_config *cqm_config;
10333 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
10334 n_thresholds * sizeof(s32), GFP_KERNEL);
10340 cqm_config->rssi_hyst = hysteresis;
10341 cqm_config->n_rssi_thresholds = n_thresholds;
10342 memcpy(cqm_config->rssi_thresholds, thresholds,
10343 n_thresholds * sizeof(s32));
10345 wdev->cqm_config = cqm_config;
10348 err = cfg80211_cqm_rssi_update(rdev, dev);
10356 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
10358 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
10359 struct nlattr *cqm;
10362 cqm = info->attrs[NL80211_ATTR_CQM];
10366 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
10367 nl80211_attr_cqm_policy, info->extack);
10371 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
10372 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
10373 const s32 *thresholds =
10374 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
10375 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
10376 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
10381 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
10385 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
10386 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
10387 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
10388 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
10389 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
10390 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
10392 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
10398 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
10400 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10401 struct net_device *dev = info->user_ptr[1];
10402 struct ocb_setup setup = {};
10405 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10409 return cfg80211_join_ocb(rdev, dev, &setup);
10412 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
10414 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10415 struct net_device *dev = info->user_ptr[1];
10417 return cfg80211_leave_ocb(rdev, dev);
10420 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
10422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10423 struct net_device *dev = info->user_ptr[1];
10424 struct mesh_config cfg;
10425 struct mesh_setup setup;
10428 /* start with default */
10429 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
10430 memcpy(&setup, &default_mesh_setup, sizeof(setup));
10432 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
10433 /* and parse parameters if given */
10434 err = nl80211_parse_mesh_config(info, &cfg, NULL);
10439 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
10440 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
10443 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
10444 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
10446 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
10447 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
10448 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
10451 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
10452 setup.beacon_interval =
10453 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
10455 err = cfg80211_validate_beacon_int(rdev,
10456 NL80211_IFTYPE_MESH_POINT,
10457 setup.beacon_interval);
10462 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
10463 setup.dtim_period =
10464 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
10465 if (setup.dtim_period < 1 || setup.dtim_period > 100)
10469 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
10470 /* parse additional setup parameters if given */
10471 err = nl80211_parse_mesh_setup(info, &setup);
10476 if (setup.user_mpm)
10477 cfg.auto_open_plinks = false;
10479 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
10480 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10484 /* __cfg80211_join_mesh() will sort it out */
10485 setup.chandef.chan = NULL;
10488 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
10489 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10491 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10492 struct ieee80211_supported_band *sband;
10494 if (!setup.chandef.chan)
10497 sband = rdev->wiphy.bands[setup.chandef.chan->band];
10499 err = ieee80211_get_ratemask(sband, rates, n_rates,
10500 &setup.basic_rates);
10505 if (info->attrs[NL80211_ATTR_TX_RATES]) {
10506 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
10510 if (!setup.chandef.chan)
10513 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
10514 &setup.beacon_rate);
10519 setup.userspace_handles_dfs =
10520 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
10522 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
10523 int r = validate_pae_over_nl80211(rdev, info);
10528 setup.control_port_over_nl80211 = true;
10531 wdev_lock(dev->ieee80211_ptr);
10532 err = __cfg80211_join_mesh(rdev, dev, &setup, &cfg);
10533 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER])
10534 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
10535 wdev_unlock(dev->ieee80211_ptr);
10540 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
10542 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10543 struct net_device *dev = info->user_ptr[1];
10545 return cfg80211_leave_mesh(rdev, dev);
10549 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
10550 struct cfg80211_registered_device *rdev)
10552 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
10553 struct nlattr *nl_pats, *nl_pat;
10556 if (!wowlan->n_patterns)
10559 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
10563 for (i = 0; i < wowlan->n_patterns; i++) {
10564 nl_pat = nla_nest_start(msg, i + 1);
10567 pat_len = wowlan->patterns[i].pattern_len;
10568 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
10569 wowlan->patterns[i].mask) ||
10570 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10571 wowlan->patterns[i].pattern) ||
10572 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10573 wowlan->patterns[i].pkt_offset))
10575 nla_nest_end(msg, nl_pat);
10577 nla_nest_end(msg, nl_pats);
10582 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
10583 struct cfg80211_wowlan_tcp *tcp)
10585 struct nlattr *nl_tcp;
10590 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
10594 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
10595 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
10596 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
10597 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
10598 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
10599 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
10600 tcp->payload_len, tcp->payload) ||
10601 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
10602 tcp->data_interval) ||
10603 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
10604 tcp->wake_len, tcp->wake_data) ||
10605 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
10606 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
10609 if (tcp->payload_seq.len &&
10610 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
10611 sizeof(tcp->payload_seq), &tcp->payload_seq))
10614 if (tcp->payload_tok.len &&
10615 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
10616 sizeof(tcp->payload_tok) + tcp->tokens_size,
10617 &tcp->payload_tok))
10620 nla_nest_end(msg, nl_tcp);
10625 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
10626 struct cfg80211_sched_scan_request *req)
10628 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
10634 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
10638 if (req->n_scan_plans == 1 &&
10639 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
10640 req->scan_plans[0].interval * 1000))
10643 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
10646 if (req->relative_rssi_set) {
10647 struct nl80211_bss_select_rssi_adjust rssi_adjust;
10649 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
10650 req->relative_rssi))
10653 rssi_adjust.band = req->rssi_adjust.band;
10654 rssi_adjust.delta = req->rssi_adjust.delta;
10655 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
10656 sizeof(rssi_adjust), &rssi_adjust))
10660 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10664 for (i = 0; i < req->n_channels; i++) {
10665 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10669 nla_nest_end(msg, freqs);
10671 if (req->n_match_sets) {
10672 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
10676 for (i = 0; i < req->n_match_sets; i++) {
10677 match = nla_nest_start(msg, i);
10681 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
10682 req->match_sets[i].ssid.ssid_len,
10683 req->match_sets[i].ssid.ssid))
10685 nla_nest_end(msg, match);
10687 nla_nest_end(msg, matches);
10690 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
10694 for (i = 0; i < req->n_scan_plans; i++) {
10695 scan_plan = nla_nest_start(msg, i + 1);
10700 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10701 req->scan_plans[i].interval) ||
10702 (req->scan_plans[i].iterations &&
10703 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10704 req->scan_plans[i].iterations)))
10706 nla_nest_end(msg, scan_plan);
10708 nla_nest_end(msg, scan_plans);
10710 nla_nest_end(msg, nd);
10715 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10717 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10718 struct sk_buff *msg;
10720 u32 size = NLMSG_DEFAULT_SIZE;
10722 if (!rdev->wiphy.wowlan)
10723 return -EOPNOTSUPP;
10725 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
10726 /* adjust size to have room for all the data */
10727 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10728 rdev->wiphy.wowlan_config->tcp->payload_len +
10729 rdev->wiphy.wowlan_config->tcp->wake_len +
10730 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
10733 msg = nlmsg_new(size, GFP_KERNEL);
10737 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10738 NL80211_CMD_GET_WOWLAN);
10740 goto nla_put_failure;
10742 if (rdev->wiphy.wowlan_config) {
10743 struct nlattr *nl_wowlan;
10745 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10747 goto nla_put_failure;
10749 if ((rdev->wiphy.wowlan_config->any &&
10750 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
10751 (rdev->wiphy.wowlan_config->disconnect &&
10752 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
10753 (rdev->wiphy.wowlan_config->magic_pkt &&
10754 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
10755 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
10756 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
10757 (rdev->wiphy.wowlan_config->eap_identity_req &&
10758 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
10759 (rdev->wiphy.wowlan_config->four_way_handshake &&
10760 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
10761 (rdev->wiphy.wowlan_config->rfkill_release &&
10762 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10763 goto nla_put_failure;
10765 if (nl80211_send_wowlan_patterns(msg, rdev))
10766 goto nla_put_failure;
10768 if (nl80211_send_wowlan_tcp(msg,
10769 rdev->wiphy.wowlan_config->tcp))
10770 goto nla_put_failure;
10772 if (nl80211_send_wowlan_nd(
10774 rdev->wiphy.wowlan_config->nd_config))
10775 goto nla_put_failure;
10777 nla_nest_end(msg, nl_wowlan);
10780 genlmsg_end(msg, hdr);
10781 return genlmsg_reply(msg, info);
10788 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10789 struct nlattr *attr,
10790 struct cfg80211_wowlan *trig)
10792 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10793 struct cfg80211_wowlan_tcp *cfg;
10794 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10795 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10797 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10800 if (!rdev->wiphy.wowlan->tcp)
10803 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
10804 nl80211_wowlan_tcp_policy, NULL);
10808 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10809 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10810 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10811 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10812 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10813 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10814 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10815 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10818 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
10819 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
10822 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
10823 rdev->wiphy.wowlan->tcp->data_interval_max ||
10824 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
10827 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
10828 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
10831 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10832 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10835 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10836 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10838 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10839 tokens_size = tokln - sizeof(*tok);
10841 if (!tok->len || tokens_size % tok->len)
10843 if (!rdev->wiphy.wowlan->tcp->tok)
10845 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
10847 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
10849 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
10851 if (tok->offset + tok->len > data_size)
10855 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10856 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
10857 if (!rdev->wiphy.wowlan->tcp->seq)
10859 if (seq->len == 0 || seq->len > 4)
10861 if (seq->len + seq->offset > data_size)
10865 size = sizeof(*cfg);
10867 size += wake_size + wake_mask_size;
10868 size += tokens_size;
10870 cfg = kzalloc(size, GFP_KERNEL);
10873 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10874 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
10875 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10877 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10878 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10882 /* allocate a socket and port for it and use it */
10883 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10884 IPPROTO_TCP, &cfg->sock, 1);
10889 if (inet_csk_get_port(cfg->sock->sk, port)) {
10890 sock_release(cfg->sock);
10892 return -EADDRINUSE;
10894 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10900 cfg->src_port = port;
10903 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10904 cfg->payload_len = data_size;
10905 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10906 memcpy((void *)cfg->payload,
10907 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10910 cfg->payload_seq = *seq;
10911 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10912 cfg->wake_len = wake_size;
10913 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10914 memcpy((void *)cfg->wake_data,
10915 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10917 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10918 data_size + wake_size;
10919 memcpy((void *)cfg->wake_mask,
10920 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10923 cfg->tokens_size = tokens_size;
10924 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10932 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10933 const struct wiphy_wowlan_support *wowlan,
10934 struct nlattr *attr,
10935 struct cfg80211_wowlan *trig)
10937 struct nlattr **tb;
10940 tb = kcalloc(NUM_NL80211_ATTR, sizeof(*tb), GFP_KERNEL);
10944 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10949 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10954 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10955 wowlan->max_nd_match_sets);
10956 err = PTR_ERR_OR_ZERO(trig->nd_config);
10958 trig->nd_config = NULL;
10965 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10968 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
10969 struct cfg80211_wowlan new_triggers = {};
10970 struct cfg80211_wowlan *ntrig;
10971 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
10973 bool prev_enabled = rdev->wiphy.wowlan_config;
10974 bool regular = false;
10977 return -EOPNOTSUPP;
10979 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10980 cfg80211_rdev_free_wowlan(rdev);
10981 rdev->wiphy.wowlan_config = NULL;
10985 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10986 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
10987 nl80211_wowlan_policy, info->extack);
10991 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10992 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10994 new_triggers.any = true;
10997 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10998 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
11000 new_triggers.disconnect = true;
11004 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
11005 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
11007 new_triggers.magic_pkt = true;
11011 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
11014 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
11015 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
11017 new_triggers.gtk_rekey_failure = true;
11021 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
11022 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
11024 new_triggers.eap_identity_req = true;
11028 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
11029 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
11031 new_triggers.four_way_handshake = true;
11035 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
11036 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
11038 new_triggers.rfkill_release = true;
11042 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
11043 struct nlattr *pat;
11044 int n_patterns = 0;
11045 int rem, pat_len, mask_len, pkt_offset;
11046 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
11050 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
11053 if (n_patterns > wowlan->n_patterns)
11056 new_triggers.patterns = kcalloc(n_patterns,
11057 sizeof(new_triggers.patterns[0]),
11059 if (!new_triggers.patterns)
11062 new_triggers.n_patterns = n_patterns;
11065 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
11069 err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
11070 nl80211_packet_pattern_policy,
11076 if (!pat_tb[NL80211_PKTPAT_MASK] ||
11077 !pat_tb[NL80211_PKTPAT_PATTERN])
11079 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
11080 mask_len = DIV_ROUND_UP(pat_len, 8);
11081 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
11083 if (pat_len > wowlan->pattern_max_len ||
11084 pat_len < wowlan->pattern_min_len)
11087 if (!pat_tb[NL80211_PKTPAT_OFFSET])
11090 pkt_offset = nla_get_u32(
11091 pat_tb[NL80211_PKTPAT_OFFSET]);
11092 if (pkt_offset > wowlan->max_pkt_offset)
11094 new_triggers.patterns[i].pkt_offset = pkt_offset;
11096 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
11101 new_triggers.patterns[i].mask = mask_pat;
11102 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
11104 mask_pat += mask_len;
11105 new_triggers.patterns[i].pattern = mask_pat;
11106 new_triggers.patterns[i].pattern_len = pat_len;
11108 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
11114 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
11116 err = nl80211_parse_wowlan_tcp(
11117 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
11123 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
11125 err = nl80211_parse_wowlan_nd(
11126 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
11132 /* The 'any' trigger means the device continues operating more or less
11133 * as in its normal operation mode and wakes up the host on most of the
11134 * normal interrupts (like packet RX, ...)
11135 * It therefore makes little sense to combine with the more constrained
11136 * wakeup trigger modes.
11138 if (new_triggers.any && regular) {
11143 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
11148 cfg80211_rdev_free_wowlan(rdev);
11149 rdev->wiphy.wowlan_config = ntrig;
11152 if (rdev->ops->set_wakeup &&
11153 prev_enabled != !!rdev->wiphy.wowlan_config)
11154 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
11158 for (i = 0; i < new_triggers.n_patterns; i++)
11159 kfree(new_triggers.patterns[i].mask);
11160 kfree(new_triggers.patterns);
11161 if (new_triggers.tcp && new_triggers.tcp->sock)
11162 sock_release(new_triggers.tcp->sock);
11163 kfree(new_triggers.tcp);
11164 kfree(new_triggers.nd_config);
11169 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
11170 struct cfg80211_registered_device *rdev)
11172 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
11174 struct cfg80211_coalesce_rules *rule;
11176 if (!rdev->coalesce->n_rules)
11179 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
11183 for (i = 0; i < rdev->coalesce->n_rules; i++) {
11184 nl_rule = nla_nest_start(msg, i + 1);
11188 rule = &rdev->coalesce->rules[i];
11189 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
11193 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
11197 nl_pats = nla_nest_start(msg,
11198 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
11202 for (j = 0; j < rule->n_patterns; j++) {
11203 nl_pat = nla_nest_start(msg, j + 1);
11206 pat_len = rule->patterns[j].pattern_len;
11207 if (nla_put(msg, NL80211_PKTPAT_MASK,
11208 DIV_ROUND_UP(pat_len, 8),
11209 rule->patterns[j].mask) ||
11210 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
11211 rule->patterns[j].pattern) ||
11212 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
11213 rule->patterns[j].pkt_offset))
11215 nla_nest_end(msg, nl_pat);
11217 nla_nest_end(msg, nl_pats);
11218 nla_nest_end(msg, nl_rule);
11220 nla_nest_end(msg, nl_rules);
11225 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
11227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11228 struct sk_buff *msg;
11231 if (!rdev->wiphy.coalesce)
11232 return -EOPNOTSUPP;
11234 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11238 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11239 NL80211_CMD_GET_COALESCE);
11241 goto nla_put_failure;
11243 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
11244 goto nla_put_failure;
11246 genlmsg_end(msg, hdr);
11247 return genlmsg_reply(msg, info);
11254 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
11256 struct cfg80211_coalesce *coalesce = rdev->coalesce;
11258 struct cfg80211_coalesce_rules *rule;
11263 for (i = 0; i < coalesce->n_rules; i++) {
11264 rule = &coalesce->rules[i];
11265 for (j = 0; j < rule->n_patterns; j++)
11266 kfree(rule->patterns[j].mask);
11267 kfree(rule->patterns);
11269 kfree(coalesce->rules);
11271 rdev->coalesce = NULL;
11274 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
11275 struct nlattr *rule,
11276 struct cfg80211_coalesce_rules *new_rule)
11279 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
11280 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
11281 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
11282 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
11284 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
11285 nl80211_coalesce_policy, NULL);
11289 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
11291 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
11292 if (new_rule->delay > coalesce->max_delay)
11295 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
11296 new_rule->condition =
11297 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
11298 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
11299 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
11302 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
11305 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
11308 if (n_patterns > coalesce->n_patterns)
11311 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
11313 if (!new_rule->patterns)
11316 new_rule->n_patterns = n_patterns;
11319 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
11323 err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
11324 nl80211_packet_pattern_policy, NULL);
11328 if (!pat_tb[NL80211_PKTPAT_MASK] ||
11329 !pat_tb[NL80211_PKTPAT_PATTERN])
11331 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
11332 mask_len = DIV_ROUND_UP(pat_len, 8);
11333 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
11335 if (pat_len > coalesce->pattern_max_len ||
11336 pat_len < coalesce->pattern_min_len)
11339 if (!pat_tb[NL80211_PKTPAT_OFFSET])
11342 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
11343 if (pkt_offset > coalesce->max_pkt_offset)
11345 new_rule->patterns[i].pkt_offset = pkt_offset;
11347 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
11351 new_rule->patterns[i].mask = mask_pat;
11352 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
11355 mask_pat += mask_len;
11356 new_rule->patterns[i].pattern = mask_pat;
11357 new_rule->patterns[i].pattern_len = pat_len;
11358 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
11366 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
11368 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11369 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
11370 struct cfg80211_coalesce new_coalesce = {};
11371 struct cfg80211_coalesce *n_coalesce;
11372 int err, rem_rule, n_rules = 0, i, j;
11373 struct nlattr *rule;
11374 struct cfg80211_coalesce_rules *tmp_rule;
11376 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
11377 return -EOPNOTSUPP;
11379 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
11380 cfg80211_rdev_free_coalesce(rdev);
11381 rdev_set_coalesce(rdev, NULL);
11385 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
11388 if (n_rules > coalesce->n_rules)
11391 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
11393 if (!new_coalesce.rules)
11396 new_coalesce.n_rules = n_rules;
11399 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
11401 err = nl80211_parse_coalesce_rule(rdev, rule,
11402 &new_coalesce.rules[i]);
11409 err = rdev_set_coalesce(rdev, &new_coalesce);
11413 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
11418 cfg80211_rdev_free_coalesce(rdev);
11419 rdev->coalesce = n_coalesce;
11423 for (i = 0; i < new_coalesce.n_rules; i++) {
11424 tmp_rule = &new_coalesce.rules[i];
11425 for (j = 0; j < tmp_rule->n_patterns; j++)
11426 kfree(tmp_rule->patterns[j].mask);
11427 kfree(tmp_rule->patterns);
11429 kfree(new_coalesce.rules);
11434 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
11436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11437 struct net_device *dev = info->user_ptr[1];
11438 struct wireless_dev *wdev = dev->ieee80211_ptr;
11439 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
11440 struct cfg80211_gtk_rekey_data rekey_data;
11443 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
11446 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
11447 info->attrs[NL80211_ATTR_REKEY_DATA],
11448 nl80211_rekey_policy, info->extack);
11452 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
11453 !tb[NL80211_REKEY_DATA_KCK])
11455 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
11457 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
11459 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
11462 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
11463 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
11464 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
11467 if (!wdev->current_bss) {
11472 if (!rdev->ops->set_rekey_data) {
11477 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
11483 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
11484 struct genl_info *info)
11486 struct net_device *dev = info->user_ptr[1];
11487 struct wireless_dev *wdev = dev->ieee80211_ptr;
11489 if (wdev->iftype != NL80211_IFTYPE_AP &&
11490 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11493 if (wdev->ap_unexpected_nlportid)
11496 wdev->ap_unexpected_nlportid = info->snd_portid;
11500 static int nl80211_probe_client(struct sk_buff *skb,
11501 struct genl_info *info)
11503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11504 struct net_device *dev = info->user_ptr[1];
11505 struct wireless_dev *wdev = dev->ieee80211_ptr;
11506 struct sk_buff *msg;
11512 if (wdev->iftype != NL80211_IFTYPE_AP &&
11513 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11514 return -EOPNOTSUPP;
11516 if (!info->attrs[NL80211_ATTR_MAC])
11519 if (!rdev->ops->probe_client)
11520 return -EOPNOTSUPP;
11522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11526 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11527 NL80211_CMD_PROBE_CLIENT);
11533 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11535 err = rdev_probe_client(rdev, dev, addr, &cookie);
11539 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11541 goto nla_put_failure;
11543 genlmsg_end(msg, hdr);
11545 return genlmsg_reply(msg, info);
11554 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
11556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11557 struct cfg80211_beacon_registration *reg, *nreg;
11560 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
11561 return -EOPNOTSUPP;
11563 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
11567 /* First, check if already registered. */
11568 spin_lock_bh(&rdev->beacon_registrations_lock);
11569 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11570 if (reg->nlportid == info->snd_portid) {
11575 /* Add it to the list */
11576 nreg->nlportid = info->snd_portid;
11577 list_add(&nreg->list, &rdev->beacon_registrations);
11579 spin_unlock_bh(&rdev->beacon_registrations_lock);
11583 spin_unlock_bh(&rdev->beacon_registrations_lock);
11588 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
11590 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11591 struct wireless_dev *wdev = info->user_ptr[1];
11594 if (!rdev->ops->start_p2p_device)
11595 return -EOPNOTSUPP;
11597 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11598 return -EOPNOTSUPP;
11600 if (wdev_running(wdev))
11603 if (rfkill_blocked(rdev->rfkill))
11606 err = rdev_start_p2p_device(rdev, wdev);
11610 wdev->is_running = true;
11616 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
11618 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11619 struct wireless_dev *wdev = info->user_ptr[1];
11621 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11622 return -EOPNOTSUPP;
11624 if (!rdev->ops->stop_p2p_device)
11625 return -EOPNOTSUPP;
11627 cfg80211_stop_p2p_device(rdev, wdev);
11632 static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
11634 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11635 struct wireless_dev *wdev = info->user_ptr[1];
11636 struct cfg80211_nan_conf conf = {};
11639 if (wdev->iftype != NL80211_IFTYPE_NAN)
11640 return -EOPNOTSUPP;
11642 if (wdev_running(wdev))
11645 if (rfkill_blocked(rdev->rfkill))
11648 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
11652 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11653 if (!conf.master_pref)
11656 if (info->attrs[NL80211_ATTR_BANDS]) {
11657 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11659 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11660 return -EOPNOTSUPP;
11662 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11665 conf.bands = bands;
11668 err = rdev_start_nan(rdev, wdev, &conf);
11672 wdev->is_running = true;
11678 static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
11680 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11681 struct wireless_dev *wdev = info->user_ptr[1];
11683 if (wdev->iftype != NL80211_IFTYPE_NAN)
11684 return -EOPNOTSUPP;
11686 cfg80211_stop_nan(rdev, wdev);
11691 static int validate_nan_filter(struct nlattr *filter_attr)
11693 struct nlattr *attr;
11694 int len = 0, n_entries = 0, rem;
11696 nla_for_each_nested(attr, filter_attr, rem) {
11697 len += nla_len(attr);
11707 static int handle_nan_filter(struct nlattr *attr_filter,
11708 struct cfg80211_nan_func *func,
11711 struct nlattr *attr;
11712 int n_entries, rem, i;
11713 struct cfg80211_nan_func_filter *filter;
11715 n_entries = validate_nan_filter(attr_filter);
11719 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11721 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11726 nla_for_each_nested(attr, attr_filter, rem) {
11727 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
11728 filter[i].len = nla_len(attr);
11732 func->num_tx_filters = n_entries;
11733 func->tx_filters = filter;
11735 func->num_rx_filters = n_entries;
11736 func->rx_filters = filter;
11742 static int nl80211_nan_add_func(struct sk_buff *skb,
11743 struct genl_info *info)
11745 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11746 struct wireless_dev *wdev = info->user_ptr[1];
11747 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11748 struct cfg80211_nan_func *func;
11749 struct sk_buff *msg = NULL;
11753 if (wdev->iftype != NL80211_IFTYPE_NAN)
11754 return -EOPNOTSUPP;
11756 if (!wdev_running(wdev))
11759 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11762 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11763 info->attrs[NL80211_ATTR_NAN_FUNC],
11764 nl80211_nan_func_policy, info->extack);
11768 func = kzalloc(sizeof(*func), GFP_KERNEL);
11772 func->cookie = wdev->wiphy->cookie_counter++;
11774 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11775 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11781 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11783 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11788 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11789 sizeof(func->service_id));
11791 func->close_range =
11792 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11794 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11795 func->serv_spec_info_len =
11796 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11797 func->serv_spec_info =
11798 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11799 func->serv_spec_info_len,
11801 if (!func->serv_spec_info) {
11807 if (tb[NL80211_NAN_FUNC_TTL])
11808 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11810 switch (func->type) {
11811 case NL80211_NAN_FUNC_PUBLISH:
11812 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11817 func->publish_type =
11818 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11819 func->publish_bcast =
11820 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11822 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11823 func->publish_bcast) {
11828 case NL80211_NAN_FUNC_SUBSCRIBE:
11829 func->subscribe_active =
11830 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11832 case NL80211_NAN_FUNC_FOLLOW_UP:
11833 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
11834 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] ||
11835 !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) {
11840 func->followup_id =
11841 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11842 func->followup_reqid =
11843 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11844 memcpy(func->followup_dest.addr,
11845 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11846 sizeof(func->followup_dest.addr));
11857 if (tb[NL80211_NAN_FUNC_SRF]) {
11858 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11860 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11861 tb[NL80211_NAN_FUNC_SRF],
11862 nl80211_nan_srf_policy, info->extack);
11866 func->srf_include =
11867 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11869 if (srf_tb[NL80211_NAN_SRF_BF]) {
11870 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11871 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11877 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11879 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11880 func->srf_bf_len, GFP_KERNEL);
11881 if (!func->srf_bf) {
11887 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11889 struct nlattr *attr, *mac_attr =
11890 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11891 int n_entries, rem, i = 0;
11898 n_entries = validate_acl_mac_addrs(mac_attr);
11899 if (n_entries <= 0) {
11904 func->srf_num_macs = n_entries;
11906 kcalloc(n_entries, sizeof(*func->srf_macs),
11908 if (!func->srf_macs) {
11913 nla_for_each_nested(attr, mac_attr, rem)
11914 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11915 sizeof(*func->srf_macs));
11919 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11920 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11926 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11927 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11933 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11939 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11940 NL80211_CMD_ADD_NAN_FUNCTION);
11941 /* This can't really happen - we just allocated 4KB */
11942 if (WARN_ON(!hdr)) {
11947 err = rdev_add_nan_func(rdev, wdev, func);
11950 cfg80211_free_nan_func(func);
11955 /* propagate the instance id and cookie to userspace */
11956 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11958 goto nla_put_failure;
11960 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11962 goto nla_put_failure;
11964 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11965 func->instance_id))
11966 goto nla_put_failure;
11968 nla_nest_end(msg, func_attr);
11970 genlmsg_end(msg, hdr);
11971 return genlmsg_reply(msg, info);
11978 static int nl80211_nan_del_func(struct sk_buff *skb,
11979 struct genl_info *info)
11981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11982 struct wireless_dev *wdev = info->user_ptr[1];
11985 if (wdev->iftype != NL80211_IFTYPE_NAN)
11986 return -EOPNOTSUPP;
11988 if (!wdev_running(wdev))
11991 if (!info->attrs[NL80211_ATTR_COOKIE])
11994 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11996 rdev_del_nan_func(rdev, wdev, cookie);
12001 static int nl80211_nan_change_config(struct sk_buff *skb,
12002 struct genl_info *info)
12004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12005 struct wireless_dev *wdev = info->user_ptr[1];
12006 struct cfg80211_nan_conf conf = {};
12009 if (wdev->iftype != NL80211_IFTYPE_NAN)
12010 return -EOPNOTSUPP;
12012 if (!wdev_running(wdev))
12015 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
12017 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
12018 if (conf.master_pref <= 1 || conf.master_pref == 255)
12021 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
12024 if (info->attrs[NL80211_ATTR_BANDS]) {
12025 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
12027 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
12028 return -EOPNOTSUPP;
12030 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
12033 conf.bands = bands;
12034 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
12040 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
12043 void cfg80211_nan_match(struct wireless_dev *wdev,
12044 struct cfg80211_nan_match_params *match, gfp_t gfp)
12046 struct wiphy *wiphy = wdev->wiphy;
12047 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12048 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
12049 struct sk_buff *msg;
12052 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
12055 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12059 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
12065 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12066 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12067 wdev->netdev->ifindex)) ||
12068 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12070 goto nla_put_failure;
12072 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
12073 NL80211_ATTR_PAD) ||
12074 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
12075 goto nla_put_failure;
12077 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
12079 goto nla_put_failure;
12081 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
12082 if (!local_func_attr)
12083 goto nla_put_failure;
12085 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
12086 goto nla_put_failure;
12088 nla_nest_end(msg, local_func_attr);
12090 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
12091 if (!peer_func_attr)
12092 goto nla_put_failure;
12094 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
12095 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
12096 goto nla_put_failure;
12098 if (match->info && match->info_len &&
12099 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
12101 goto nla_put_failure;
12103 nla_nest_end(msg, peer_func_attr);
12104 nla_nest_end(msg, match_attr);
12105 genlmsg_end(msg, hdr);
12107 if (!wdev->owner_nlportid)
12108 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
12109 msg, 0, NL80211_MCGRP_NAN, gfp);
12111 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
12112 wdev->owner_nlportid);
12119 EXPORT_SYMBOL(cfg80211_nan_match);
12121 void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
12123 enum nl80211_nan_func_term_reason reason,
12124 u64 cookie, gfp_t gfp)
12126 struct wiphy *wiphy = wdev->wiphy;
12127 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12128 struct sk_buff *msg;
12129 struct nlattr *func_attr;
12132 if (WARN_ON(!inst_id))
12135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12139 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
12145 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12146 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12147 wdev->netdev->ifindex)) ||
12148 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12150 goto nla_put_failure;
12152 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12154 goto nla_put_failure;
12156 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
12158 goto nla_put_failure;
12160 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
12161 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
12162 goto nla_put_failure;
12164 nla_nest_end(msg, func_attr);
12165 genlmsg_end(msg, hdr);
12167 if (!wdev->owner_nlportid)
12168 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
12169 msg, 0, NL80211_MCGRP_NAN, gfp);
12171 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
12172 wdev->owner_nlportid);
12179 EXPORT_SYMBOL(cfg80211_nan_func_terminated);
12181 static int nl80211_get_protocol_features(struct sk_buff *skb,
12182 struct genl_info *info)
12185 struct sk_buff *msg;
12187 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12191 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
12192 NL80211_CMD_GET_PROTOCOL_FEATURES);
12194 goto nla_put_failure;
12196 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
12197 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
12198 goto nla_put_failure;
12200 genlmsg_end(msg, hdr);
12201 return genlmsg_reply(msg, info);
12208 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
12210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12211 struct cfg80211_update_ft_ies_params ft_params;
12212 struct net_device *dev = info->user_ptr[1];
12214 if (!rdev->ops->update_ft_ies)
12215 return -EOPNOTSUPP;
12217 if (!info->attrs[NL80211_ATTR_MDID] ||
12218 !info->attrs[NL80211_ATTR_IE] ||
12219 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
12222 memset(&ft_params, 0, sizeof(ft_params));
12223 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
12224 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
12225 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
12227 return rdev_update_ft_ies(rdev, dev, &ft_params);
12230 static int nl80211_crit_protocol_start(struct sk_buff *skb,
12231 struct genl_info *info)
12233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12234 struct wireless_dev *wdev = info->user_ptr[1];
12235 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
12239 if (!rdev->ops->crit_proto_start)
12240 return -EOPNOTSUPP;
12242 if (WARN_ON(!rdev->ops->crit_proto_stop))
12245 if (rdev->crit_proto_nlportid)
12248 /* determine protocol if provided */
12249 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
12250 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
12252 if (proto >= NUM_NL80211_CRIT_PROTO)
12255 /* timeout must be provided */
12256 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
12260 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
12262 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
12265 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
12267 rdev->crit_proto_nlportid = info->snd_portid;
12272 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
12273 struct genl_info *info)
12275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12276 struct wireless_dev *wdev = info->user_ptr[1];
12278 if (!rdev->ops->crit_proto_stop)
12279 return -EOPNOTSUPP;
12281 if (rdev->crit_proto_nlportid) {
12282 rdev->crit_proto_nlportid = 0;
12283 rdev_crit_proto_stop(rdev, wdev);
12288 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
12290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12291 struct wireless_dev *wdev =
12292 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
12296 if (!rdev->wiphy.vendor_commands)
12297 return -EOPNOTSUPP;
12299 if (IS_ERR(wdev)) {
12300 err = PTR_ERR(wdev);
12301 if (err != -EINVAL)
12304 } else if (wdev->wiphy != &rdev->wiphy) {
12308 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
12309 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
12312 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
12313 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
12314 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
12315 const struct wiphy_vendor_command *vcmd;
12319 vcmd = &rdev->wiphy.vendor_commands[i];
12321 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
12324 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
12325 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
12328 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
12332 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
12333 if (!wdev_running(wdev))
12338 return -EOPNOTSUPP;
12343 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
12344 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
12345 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
12348 rdev->cur_cmd_info = info;
12349 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
12351 rdev->cur_cmd_info = NULL;
12355 return -EOPNOTSUPP;
12358 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
12359 struct netlink_callback *cb,
12360 struct cfg80211_registered_device **rdev,
12361 struct wireless_dev **wdev)
12363 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
12369 unsigned int data_len = 0;
12372 /* subtract the 1 again here */
12373 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
12374 struct wireless_dev *tmp;
12378 *rdev = wiphy_to_rdev(wiphy);
12382 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
12383 if (tmp->identifier == cb->args[1] - 1) {
12390 /* keep rtnl locked in successful case */
12394 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
12395 nl80211_fam.maxattr, nl80211_policy, NULL);
12399 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
12400 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
12403 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
12407 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
12409 return PTR_ERR(*rdev);
12411 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
12412 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
12414 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
12415 const struct wiphy_vendor_command *vcmd;
12417 vcmd = &(*rdev)->wiphy.vendor_commands[i];
12419 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
12423 return -EOPNOTSUPP;
12430 return -EOPNOTSUPP;
12432 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
12433 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
12434 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
12437 /* 0 is the first index - add 1 to parse only once */
12438 cb->args[0] = (*rdev)->wiphy_idx + 1;
12439 /* add 1 to know if it was NULL */
12440 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
12441 cb->args[2] = vcmd_idx;
12442 cb->args[3] = (unsigned long)data;
12443 cb->args[4] = data_len;
12445 /* keep rtnl locked in successful case */
12449 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
12450 struct netlink_callback *cb)
12452 struct cfg80211_registered_device *rdev;
12453 struct wireless_dev *wdev;
12454 unsigned int vcmd_idx;
12455 const struct wiphy_vendor_command *vcmd;
12459 struct nlattr *vendor_data;
12462 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
12466 vcmd_idx = cb->args[2];
12467 data = (void *)cb->args[3];
12468 data_len = cb->args[4];
12469 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
12471 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
12472 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
12477 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
12483 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
12484 if (!wdev_running(wdev)) {
12492 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
12493 cb->nlh->nlmsg_seq, NLM_F_MULTI,
12494 NL80211_CMD_VENDOR);
12498 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12499 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
12501 NL80211_ATTR_PAD))) {
12502 genlmsg_cancel(skb, hdr);
12506 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
12507 if (!vendor_data) {
12508 genlmsg_cancel(skb, hdr);
12512 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
12513 (unsigned long *)&cb->args[5]);
12514 nla_nest_end(skb, vendor_data);
12516 if (err == -ENOBUFS || err == -ENOENT) {
12517 genlmsg_cancel(skb, hdr);
12520 genlmsg_cancel(skb, hdr);
12524 genlmsg_end(skb, hdr);
12533 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
12534 enum nl80211_commands cmd,
12535 enum nl80211_attrs attr,
12538 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12540 if (WARN_ON(!rdev->cur_cmd_info))
12543 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
12544 rdev->cur_cmd_info->snd_portid,
12545 rdev->cur_cmd_info->snd_seq,
12546 cmd, attr, NULL, GFP_KERNEL);
12548 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
12550 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
12552 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
12553 void *hdr = ((void **)skb->cb)[1];
12554 struct nlattr *data = ((void **)skb->cb)[2];
12556 /* clear CB data for netlink core to own from now on */
12557 memset(skb->cb, 0, sizeof(skb->cb));
12559 if (WARN_ON(!rdev->cur_cmd_info)) {
12564 nla_nest_end(skb, data);
12565 genlmsg_end(skb, hdr);
12566 return genlmsg_reply(skb, rdev->cur_cmd_info);
12568 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
12570 static int nl80211_set_qos_map(struct sk_buff *skb,
12571 struct genl_info *info)
12573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12574 struct cfg80211_qos_map *qos_map = NULL;
12575 struct net_device *dev = info->user_ptr[1];
12576 u8 *pos, len, num_des, des_len, des;
12579 if (!rdev->ops->set_qos_map)
12580 return -EOPNOTSUPP;
12582 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
12583 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
12584 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
12586 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
12587 len > IEEE80211_QOS_MAP_LEN_MAX)
12590 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
12594 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
12596 des_len = num_des *
12597 sizeof(struct cfg80211_dscp_exception);
12598 memcpy(qos_map->dscp_exception, pos, des_len);
12599 qos_map->num_des = num_des;
12600 for (des = 0; des < num_des; des++) {
12601 if (qos_map->dscp_exception[des].up > 7) {
12608 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
12611 wdev_lock(dev->ieee80211_ptr);
12612 ret = nl80211_key_allowed(dev->ieee80211_ptr);
12614 ret = rdev_set_qos_map(rdev, dev, qos_map);
12615 wdev_unlock(dev->ieee80211_ptr);
12621 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
12623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12624 struct net_device *dev = info->user_ptr[1];
12625 struct wireless_dev *wdev = dev->ieee80211_ptr;
12628 u16 admitted_time = 0;
12631 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
12632 return -EOPNOTSUPP;
12634 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
12635 !info->attrs[NL80211_ATTR_USER_PRIO])
12638 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12639 if (tsid >= IEEE80211_NUM_TIDS)
12642 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
12643 if (up >= IEEE80211_NUM_UPS)
12646 /* WMM uses TIDs 0-7 even for TSPEC */
12647 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
12648 /* TODO: handle 802.11 TSPEC/admission control
12649 * need more attributes for that (e.g. BA session requirement);
12650 * change the WMM adminssion test above to allow both then
12655 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12657 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
12659 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
12660 if (!admitted_time)
12665 switch (wdev->iftype) {
12666 case NL80211_IFTYPE_STATION:
12667 case NL80211_IFTYPE_P2P_CLIENT:
12668 if (wdev->current_bss)
12677 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
12684 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
12686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12687 struct net_device *dev = info->user_ptr[1];
12688 struct wireless_dev *wdev = dev->ieee80211_ptr;
12693 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
12696 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12697 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12700 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12706 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12707 struct genl_info *info)
12709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12710 struct net_device *dev = info->user_ptr[1];
12711 struct wireless_dev *wdev = dev->ieee80211_ptr;
12712 struct cfg80211_chan_def chandef = {};
12717 if (!rdev->ops->tdls_channel_switch ||
12718 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12719 return -EOPNOTSUPP;
12721 switch (dev->ieee80211_ptr->iftype) {
12722 case NL80211_IFTYPE_STATION:
12723 case NL80211_IFTYPE_P2P_CLIENT:
12726 return -EOPNOTSUPP;
12729 if (!info->attrs[NL80211_ATTR_MAC] ||
12730 !info->attrs[NL80211_ATTR_OPER_CLASS])
12733 err = nl80211_parse_chandef(rdev, info, &chandef);
12738 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12739 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12740 * specification is not defined for them.
12742 if (chandef.chan->band == NL80211_BAND_2GHZ &&
12743 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12744 chandef.width != NL80211_CHAN_WIDTH_20)
12747 /* we will be active on the TDLS link */
12748 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12752 /* don't allow switching to DFS channels */
12753 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12756 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12757 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12760 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12766 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12767 struct genl_info *info)
12769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12770 struct net_device *dev = info->user_ptr[1];
12771 struct wireless_dev *wdev = dev->ieee80211_ptr;
12774 if (!rdev->ops->tdls_channel_switch ||
12775 !rdev->ops->tdls_cancel_channel_switch ||
12776 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12777 return -EOPNOTSUPP;
12779 switch (dev->ieee80211_ptr->iftype) {
12780 case NL80211_IFTYPE_STATION:
12781 case NL80211_IFTYPE_P2P_CLIENT:
12784 return -EOPNOTSUPP;
12787 if (!info->attrs[NL80211_ATTR_MAC])
12790 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12793 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12799 static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12800 struct genl_info *info)
12802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12803 struct net_device *dev = info->user_ptr[1];
12804 struct wireless_dev *wdev = dev->ieee80211_ptr;
12805 const struct nlattr *nla;
12808 if (!rdev->ops->set_multicast_to_unicast)
12809 return -EOPNOTSUPP;
12811 if (wdev->iftype != NL80211_IFTYPE_AP &&
12812 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12813 return -EOPNOTSUPP;
12815 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12816 enabled = nla_get_flag(nla);
12818 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12821 static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
12823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12824 struct net_device *dev = info->user_ptr[1];
12825 struct wireless_dev *wdev = dev->ieee80211_ptr;
12826 struct cfg80211_pmk_conf pmk_conf = {};
12829 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12830 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12831 return -EOPNOTSUPP;
12833 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12834 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12835 return -EOPNOTSUPP;
12837 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
12841 if (!wdev->current_bss) {
12846 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12847 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
12852 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
12853 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
12854 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
12855 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
12860 if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
12861 int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12863 if (r0_name_len != WLAN_PMK_NAME_LEN) {
12868 pmk_conf.pmk_r0_name =
12869 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12872 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
12878 static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
12880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12881 struct net_device *dev = info->user_ptr[1];
12882 struct wireless_dev *wdev = dev->ieee80211_ptr;
12886 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12887 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12888 return -EOPNOTSUPP;
12890 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12891 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12892 return -EOPNOTSUPP;
12894 if (!info->attrs[NL80211_ATTR_MAC])
12898 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12899 ret = rdev_del_pmk(rdev, dev, aa);
12905 static int nl80211_external_auth(struct sk_buff *skb, struct genl_info *info)
12907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12908 struct net_device *dev = info->user_ptr[1];
12909 struct cfg80211_external_auth_params params;
12911 if (!rdev->ops->external_auth)
12912 return -EOPNOTSUPP;
12914 if (!info->attrs[NL80211_ATTR_SSID])
12917 if (!info->attrs[NL80211_ATTR_BSSID])
12920 if (!info->attrs[NL80211_ATTR_STATUS_CODE])
12923 memset(¶ms, 0, sizeof(params));
12925 params.ssid.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
12926 if (params.ssid.ssid_len == 0 ||
12927 params.ssid.ssid_len > IEEE80211_MAX_SSID_LEN)
12929 memcpy(params.ssid.ssid, nla_data(info->attrs[NL80211_ATTR_SSID]),
12930 params.ssid.ssid_len);
12932 memcpy(params.bssid, nla_data(info->attrs[NL80211_ATTR_BSSID]),
12935 params.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
12937 return rdev_external_auth(rdev, dev, ¶ms);
12940 static int nl80211_tx_control_port(struct sk_buff *skb, struct genl_info *info)
12942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12943 struct net_device *dev = info->user_ptr[1];
12944 struct wireless_dev *wdev = dev->ieee80211_ptr;
12952 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12953 NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
12954 return -EOPNOTSUPP;
12956 if (!rdev->ops->tx_control_port)
12957 return -EOPNOTSUPP;
12959 if (!info->attrs[NL80211_ATTR_FRAME] ||
12960 !info->attrs[NL80211_ATTR_MAC] ||
12961 !info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
12962 GENL_SET_ERR_MSG(info, "Frame, MAC or ethertype missing");
12968 switch (wdev->iftype) {
12969 case NL80211_IFTYPE_AP:
12970 case NL80211_IFTYPE_P2P_GO:
12971 case NL80211_IFTYPE_MESH_POINT:
12973 case NL80211_IFTYPE_ADHOC:
12974 case NL80211_IFTYPE_STATION:
12975 case NL80211_IFTYPE_P2P_CLIENT:
12976 if (wdev->current_bss)
12987 buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
12988 len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
12989 dest = nla_data(info->attrs[NL80211_ATTR_MAC]);
12990 proto = nla_get_u16(info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
12992 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]);
12994 return rdev_tx_control_port(rdev, dev, buf, len,
12995 dest, cpu_to_be16(proto), noencrypt);
13002 #define NL80211_FLAG_NEED_WIPHY 0x01
13003 #define NL80211_FLAG_NEED_NETDEV 0x02
13004 #define NL80211_FLAG_NEED_RTNL 0x04
13005 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
13006 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
13007 NL80211_FLAG_CHECK_NETDEV_UP)
13008 #define NL80211_FLAG_NEED_WDEV 0x10
13009 /* If a netdev is associated, it must be UP, P2P must be started */
13010 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
13011 NL80211_FLAG_CHECK_NETDEV_UP)
13012 #define NL80211_FLAG_CLEAR_SKB 0x20
13014 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
13015 struct genl_info *info)
13017 struct cfg80211_registered_device *rdev;
13018 struct wireless_dev *wdev;
13019 struct net_device *dev;
13020 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
13025 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
13026 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
13027 if (IS_ERR(rdev)) {
13030 return PTR_ERR(rdev);
13032 info->user_ptr[0] = rdev;
13033 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
13034 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
13037 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
13039 if (IS_ERR(wdev)) {
13042 return PTR_ERR(wdev);
13045 dev = wdev->netdev;
13046 rdev = wiphy_to_rdev(wdev->wiphy);
13048 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
13055 info->user_ptr[1] = dev;
13057 info->user_ptr[1] = wdev;
13060 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
13061 !wdev_running(wdev)) {
13070 info->user_ptr[0] = rdev;
13076 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
13077 struct genl_info *info)
13079 if (info->user_ptr[1]) {
13080 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
13081 struct wireless_dev *wdev = info->user_ptr[1];
13084 dev_put(wdev->netdev);
13086 dev_put(info->user_ptr[1]);
13090 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
13093 /* If needed, clear the netlink message payload from the SKB
13094 * as it might contain key data that shouldn't stick around on
13095 * the heap after the SKB is freed. The netlink message header
13096 * is still needed for further processing, so leave it intact.
13098 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
13099 struct nlmsghdr *nlh = nlmsg_hdr(skb);
13101 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
13105 static const struct genl_ops nl80211_ops[] = {
13107 .cmd = NL80211_CMD_GET_WIPHY,
13108 .doit = nl80211_get_wiphy,
13109 .dumpit = nl80211_dump_wiphy,
13110 .done = nl80211_dump_wiphy_done,
13111 .policy = nl80211_policy,
13112 /* can be retrieved by unprivileged users */
13113 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13114 NL80211_FLAG_NEED_RTNL,
13117 .cmd = NL80211_CMD_SET_WIPHY,
13118 .doit = nl80211_set_wiphy,
13119 .policy = nl80211_policy,
13120 .flags = GENL_UNS_ADMIN_PERM,
13121 .internal_flags = NL80211_FLAG_NEED_RTNL,
13124 .cmd = NL80211_CMD_GET_INTERFACE,
13125 .doit = nl80211_get_interface,
13126 .dumpit = nl80211_dump_interface,
13127 .policy = nl80211_policy,
13128 /* can be retrieved by unprivileged users */
13129 .internal_flags = NL80211_FLAG_NEED_WDEV |
13130 NL80211_FLAG_NEED_RTNL,
13133 .cmd = NL80211_CMD_SET_INTERFACE,
13134 .doit = nl80211_set_interface,
13135 .policy = nl80211_policy,
13136 .flags = GENL_UNS_ADMIN_PERM,
13137 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13138 NL80211_FLAG_NEED_RTNL,
13141 .cmd = NL80211_CMD_NEW_INTERFACE,
13142 .doit = nl80211_new_interface,
13143 .policy = nl80211_policy,
13144 .flags = GENL_UNS_ADMIN_PERM,
13145 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13146 NL80211_FLAG_NEED_RTNL,
13149 .cmd = NL80211_CMD_DEL_INTERFACE,
13150 .doit = nl80211_del_interface,
13151 .policy = nl80211_policy,
13152 .flags = GENL_UNS_ADMIN_PERM,
13153 .internal_flags = NL80211_FLAG_NEED_WDEV |
13154 NL80211_FLAG_NEED_RTNL,
13157 .cmd = NL80211_CMD_GET_KEY,
13158 .doit = nl80211_get_key,
13159 .policy = nl80211_policy,
13160 .flags = GENL_UNS_ADMIN_PERM,
13161 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13162 NL80211_FLAG_NEED_RTNL,
13165 .cmd = NL80211_CMD_SET_KEY,
13166 .doit = nl80211_set_key,
13167 .policy = nl80211_policy,
13168 .flags = GENL_UNS_ADMIN_PERM,
13169 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13170 NL80211_FLAG_NEED_RTNL |
13171 NL80211_FLAG_CLEAR_SKB,
13174 .cmd = NL80211_CMD_NEW_KEY,
13175 .doit = nl80211_new_key,
13176 .policy = nl80211_policy,
13177 .flags = GENL_UNS_ADMIN_PERM,
13178 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13179 NL80211_FLAG_NEED_RTNL |
13180 NL80211_FLAG_CLEAR_SKB,
13183 .cmd = NL80211_CMD_DEL_KEY,
13184 .doit = nl80211_del_key,
13185 .policy = nl80211_policy,
13186 .flags = GENL_UNS_ADMIN_PERM,
13187 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13188 NL80211_FLAG_NEED_RTNL,
13191 .cmd = NL80211_CMD_SET_BEACON,
13192 .policy = nl80211_policy,
13193 .flags = GENL_UNS_ADMIN_PERM,
13194 .doit = nl80211_set_beacon,
13195 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13196 NL80211_FLAG_NEED_RTNL,
13199 .cmd = NL80211_CMD_START_AP,
13200 .policy = nl80211_policy,
13201 .flags = GENL_UNS_ADMIN_PERM,
13202 .doit = nl80211_start_ap,
13203 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13204 NL80211_FLAG_NEED_RTNL,
13207 .cmd = NL80211_CMD_STOP_AP,
13208 .policy = nl80211_policy,
13209 .flags = GENL_UNS_ADMIN_PERM,
13210 .doit = nl80211_stop_ap,
13211 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13212 NL80211_FLAG_NEED_RTNL,
13215 .cmd = NL80211_CMD_GET_STATION,
13216 .doit = nl80211_get_station,
13217 .dumpit = nl80211_dump_station,
13218 .policy = nl80211_policy,
13219 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13220 NL80211_FLAG_NEED_RTNL,
13223 .cmd = NL80211_CMD_SET_STATION,
13224 .doit = nl80211_set_station,
13225 .policy = nl80211_policy,
13226 .flags = GENL_UNS_ADMIN_PERM,
13227 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13228 NL80211_FLAG_NEED_RTNL,
13231 .cmd = NL80211_CMD_NEW_STATION,
13232 .doit = nl80211_new_station,
13233 .policy = nl80211_policy,
13234 .flags = GENL_UNS_ADMIN_PERM,
13235 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13236 NL80211_FLAG_NEED_RTNL,
13239 .cmd = NL80211_CMD_DEL_STATION,
13240 .doit = nl80211_del_station,
13241 .policy = nl80211_policy,
13242 .flags = GENL_UNS_ADMIN_PERM,
13243 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13244 NL80211_FLAG_NEED_RTNL,
13247 .cmd = NL80211_CMD_GET_MPATH,
13248 .doit = nl80211_get_mpath,
13249 .dumpit = nl80211_dump_mpath,
13250 .policy = nl80211_policy,
13251 .flags = GENL_UNS_ADMIN_PERM,
13252 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13253 NL80211_FLAG_NEED_RTNL,
13256 .cmd = NL80211_CMD_GET_MPP,
13257 .doit = nl80211_get_mpp,
13258 .dumpit = nl80211_dump_mpp,
13259 .policy = nl80211_policy,
13260 .flags = GENL_UNS_ADMIN_PERM,
13261 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13262 NL80211_FLAG_NEED_RTNL,
13265 .cmd = NL80211_CMD_SET_MPATH,
13266 .doit = nl80211_set_mpath,
13267 .policy = nl80211_policy,
13268 .flags = GENL_UNS_ADMIN_PERM,
13269 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13270 NL80211_FLAG_NEED_RTNL,
13273 .cmd = NL80211_CMD_NEW_MPATH,
13274 .doit = nl80211_new_mpath,
13275 .policy = nl80211_policy,
13276 .flags = GENL_UNS_ADMIN_PERM,
13277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13278 NL80211_FLAG_NEED_RTNL,
13281 .cmd = NL80211_CMD_DEL_MPATH,
13282 .doit = nl80211_del_mpath,
13283 .policy = nl80211_policy,
13284 .flags = GENL_UNS_ADMIN_PERM,
13285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13286 NL80211_FLAG_NEED_RTNL,
13289 .cmd = NL80211_CMD_SET_BSS,
13290 .doit = nl80211_set_bss,
13291 .policy = nl80211_policy,
13292 .flags = GENL_UNS_ADMIN_PERM,
13293 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13294 NL80211_FLAG_NEED_RTNL,
13297 .cmd = NL80211_CMD_GET_REG,
13298 .doit = nl80211_get_reg_do,
13299 .dumpit = nl80211_get_reg_dump,
13300 .policy = nl80211_policy,
13301 .internal_flags = NL80211_FLAG_NEED_RTNL,
13302 /* can be retrieved by unprivileged users */
13304 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
13306 .cmd = NL80211_CMD_SET_REG,
13307 .doit = nl80211_set_reg,
13308 .policy = nl80211_policy,
13309 .flags = GENL_ADMIN_PERM,
13310 .internal_flags = NL80211_FLAG_NEED_RTNL,
13314 .cmd = NL80211_CMD_REQ_SET_REG,
13315 .doit = nl80211_req_set_reg,
13316 .policy = nl80211_policy,
13317 .flags = GENL_ADMIN_PERM,
13320 .cmd = NL80211_CMD_RELOAD_REGDB,
13321 .doit = nl80211_reload_regdb,
13322 .policy = nl80211_policy,
13323 .flags = GENL_ADMIN_PERM,
13326 .cmd = NL80211_CMD_GET_MESH_CONFIG,
13327 .doit = nl80211_get_mesh_config,
13328 .policy = nl80211_policy,
13329 /* can be retrieved by unprivileged users */
13330 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13331 NL80211_FLAG_NEED_RTNL,
13334 .cmd = NL80211_CMD_SET_MESH_CONFIG,
13335 .doit = nl80211_update_mesh_config,
13336 .policy = nl80211_policy,
13337 .flags = GENL_UNS_ADMIN_PERM,
13338 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13339 NL80211_FLAG_NEED_RTNL,
13342 .cmd = NL80211_CMD_TRIGGER_SCAN,
13343 .doit = nl80211_trigger_scan,
13344 .policy = nl80211_policy,
13345 .flags = GENL_UNS_ADMIN_PERM,
13346 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13347 NL80211_FLAG_NEED_RTNL,
13350 .cmd = NL80211_CMD_ABORT_SCAN,
13351 .doit = nl80211_abort_scan,
13352 .policy = nl80211_policy,
13353 .flags = GENL_UNS_ADMIN_PERM,
13354 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13355 NL80211_FLAG_NEED_RTNL,
13358 .cmd = NL80211_CMD_GET_SCAN,
13359 .policy = nl80211_policy,
13360 .dumpit = nl80211_dump_scan,
13363 .cmd = NL80211_CMD_START_SCHED_SCAN,
13364 .doit = nl80211_start_sched_scan,
13365 .policy = nl80211_policy,
13366 .flags = GENL_UNS_ADMIN_PERM,
13367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13368 NL80211_FLAG_NEED_RTNL,
13371 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
13372 .doit = nl80211_stop_sched_scan,
13373 .policy = nl80211_policy,
13374 .flags = GENL_UNS_ADMIN_PERM,
13375 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13376 NL80211_FLAG_NEED_RTNL,
13379 .cmd = NL80211_CMD_AUTHENTICATE,
13380 .doit = nl80211_authenticate,
13381 .policy = nl80211_policy,
13382 .flags = GENL_UNS_ADMIN_PERM,
13383 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13384 NL80211_FLAG_NEED_RTNL |
13385 NL80211_FLAG_CLEAR_SKB,
13388 .cmd = NL80211_CMD_ASSOCIATE,
13389 .doit = nl80211_associate,
13390 .policy = nl80211_policy,
13391 .flags = GENL_UNS_ADMIN_PERM,
13392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13393 NL80211_FLAG_NEED_RTNL,
13396 .cmd = NL80211_CMD_DEAUTHENTICATE,
13397 .doit = nl80211_deauthenticate,
13398 .policy = nl80211_policy,
13399 .flags = GENL_UNS_ADMIN_PERM,
13400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13401 NL80211_FLAG_NEED_RTNL,
13404 .cmd = NL80211_CMD_DISASSOCIATE,
13405 .doit = nl80211_disassociate,
13406 .policy = nl80211_policy,
13407 .flags = GENL_UNS_ADMIN_PERM,
13408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13409 NL80211_FLAG_NEED_RTNL,
13412 .cmd = NL80211_CMD_JOIN_IBSS,
13413 .doit = nl80211_join_ibss,
13414 .policy = nl80211_policy,
13415 .flags = GENL_UNS_ADMIN_PERM,
13416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13417 NL80211_FLAG_NEED_RTNL,
13420 .cmd = NL80211_CMD_LEAVE_IBSS,
13421 .doit = nl80211_leave_ibss,
13422 .policy = nl80211_policy,
13423 .flags = GENL_UNS_ADMIN_PERM,
13424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13425 NL80211_FLAG_NEED_RTNL,
13427 #ifdef CONFIG_NL80211_TESTMODE
13429 .cmd = NL80211_CMD_TESTMODE,
13430 .doit = nl80211_testmode_do,
13431 .dumpit = nl80211_testmode_dump,
13432 .policy = nl80211_policy,
13433 .flags = GENL_UNS_ADMIN_PERM,
13434 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13435 NL80211_FLAG_NEED_RTNL,
13439 .cmd = NL80211_CMD_CONNECT,
13440 .doit = nl80211_connect,
13441 .policy = nl80211_policy,
13442 .flags = GENL_UNS_ADMIN_PERM,
13443 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13444 NL80211_FLAG_NEED_RTNL,
13447 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
13448 .doit = nl80211_update_connect_params,
13449 .policy = nl80211_policy,
13450 .flags = GENL_ADMIN_PERM,
13451 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13452 NL80211_FLAG_NEED_RTNL,
13455 .cmd = NL80211_CMD_DISCONNECT,
13456 .doit = nl80211_disconnect,
13457 .policy = nl80211_policy,
13458 .flags = GENL_UNS_ADMIN_PERM,
13459 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13460 NL80211_FLAG_NEED_RTNL,
13463 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
13464 .doit = nl80211_wiphy_netns,
13465 .policy = nl80211_policy,
13466 .flags = GENL_UNS_ADMIN_PERM,
13467 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13468 NL80211_FLAG_NEED_RTNL,
13471 .cmd = NL80211_CMD_GET_SURVEY,
13472 .policy = nl80211_policy,
13473 .dumpit = nl80211_dump_survey,
13476 .cmd = NL80211_CMD_SET_PMKSA,
13477 .doit = nl80211_setdel_pmksa,
13478 .policy = nl80211_policy,
13479 .flags = GENL_UNS_ADMIN_PERM,
13480 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13481 NL80211_FLAG_NEED_RTNL,
13484 .cmd = NL80211_CMD_DEL_PMKSA,
13485 .doit = nl80211_setdel_pmksa,
13486 .policy = nl80211_policy,
13487 .flags = GENL_UNS_ADMIN_PERM,
13488 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13489 NL80211_FLAG_NEED_RTNL,
13492 .cmd = NL80211_CMD_FLUSH_PMKSA,
13493 .doit = nl80211_flush_pmksa,
13494 .policy = nl80211_policy,
13495 .flags = GENL_UNS_ADMIN_PERM,
13496 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13497 NL80211_FLAG_NEED_RTNL,
13500 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
13501 .doit = nl80211_remain_on_channel,
13502 .policy = nl80211_policy,
13503 .flags = GENL_UNS_ADMIN_PERM,
13504 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13505 NL80211_FLAG_NEED_RTNL,
13508 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
13509 .doit = nl80211_cancel_remain_on_channel,
13510 .policy = nl80211_policy,
13511 .flags = GENL_UNS_ADMIN_PERM,
13512 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13513 NL80211_FLAG_NEED_RTNL,
13516 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
13517 .doit = nl80211_set_tx_bitrate_mask,
13518 .policy = nl80211_policy,
13519 .flags = GENL_UNS_ADMIN_PERM,
13520 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13521 NL80211_FLAG_NEED_RTNL,
13524 .cmd = NL80211_CMD_REGISTER_FRAME,
13525 .doit = nl80211_register_mgmt,
13526 .policy = nl80211_policy,
13527 .flags = GENL_UNS_ADMIN_PERM,
13528 .internal_flags = NL80211_FLAG_NEED_WDEV |
13529 NL80211_FLAG_NEED_RTNL,
13532 .cmd = NL80211_CMD_FRAME,
13533 .doit = nl80211_tx_mgmt,
13534 .policy = nl80211_policy,
13535 .flags = GENL_UNS_ADMIN_PERM,
13536 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13537 NL80211_FLAG_NEED_RTNL,
13540 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
13541 .doit = nl80211_tx_mgmt_cancel_wait,
13542 .policy = nl80211_policy,
13543 .flags = GENL_UNS_ADMIN_PERM,
13544 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13545 NL80211_FLAG_NEED_RTNL,
13548 .cmd = NL80211_CMD_SET_POWER_SAVE,
13549 .doit = nl80211_set_power_save,
13550 .policy = nl80211_policy,
13551 .flags = GENL_UNS_ADMIN_PERM,
13552 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13553 NL80211_FLAG_NEED_RTNL,
13556 .cmd = NL80211_CMD_GET_POWER_SAVE,
13557 .doit = nl80211_get_power_save,
13558 .policy = nl80211_policy,
13559 /* can be retrieved by unprivileged users */
13560 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13561 NL80211_FLAG_NEED_RTNL,
13564 .cmd = NL80211_CMD_SET_CQM,
13565 .doit = nl80211_set_cqm,
13566 .policy = nl80211_policy,
13567 .flags = GENL_UNS_ADMIN_PERM,
13568 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13569 NL80211_FLAG_NEED_RTNL,
13572 .cmd = NL80211_CMD_SET_CHANNEL,
13573 .doit = nl80211_set_channel,
13574 .policy = nl80211_policy,
13575 .flags = GENL_UNS_ADMIN_PERM,
13576 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13577 NL80211_FLAG_NEED_RTNL,
13580 .cmd = NL80211_CMD_SET_WDS_PEER,
13581 .doit = nl80211_set_wds_peer,
13582 .policy = nl80211_policy,
13583 .flags = GENL_UNS_ADMIN_PERM,
13584 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13585 NL80211_FLAG_NEED_RTNL,
13588 .cmd = NL80211_CMD_JOIN_MESH,
13589 .doit = nl80211_join_mesh,
13590 .policy = nl80211_policy,
13591 .flags = GENL_UNS_ADMIN_PERM,
13592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13593 NL80211_FLAG_NEED_RTNL,
13596 .cmd = NL80211_CMD_LEAVE_MESH,
13597 .doit = nl80211_leave_mesh,
13598 .policy = nl80211_policy,
13599 .flags = GENL_UNS_ADMIN_PERM,
13600 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13601 NL80211_FLAG_NEED_RTNL,
13604 .cmd = NL80211_CMD_JOIN_OCB,
13605 .doit = nl80211_join_ocb,
13606 .policy = nl80211_policy,
13607 .flags = GENL_UNS_ADMIN_PERM,
13608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13609 NL80211_FLAG_NEED_RTNL,
13612 .cmd = NL80211_CMD_LEAVE_OCB,
13613 .doit = nl80211_leave_ocb,
13614 .policy = nl80211_policy,
13615 .flags = GENL_UNS_ADMIN_PERM,
13616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13617 NL80211_FLAG_NEED_RTNL,
13621 .cmd = NL80211_CMD_GET_WOWLAN,
13622 .doit = nl80211_get_wowlan,
13623 .policy = nl80211_policy,
13624 /* can be retrieved by unprivileged users */
13625 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13626 NL80211_FLAG_NEED_RTNL,
13629 .cmd = NL80211_CMD_SET_WOWLAN,
13630 .doit = nl80211_set_wowlan,
13631 .policy = nl80211_policy,
13632 .flags = GENL_UNS_ADMIN_PERM,
13633 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13634 NL80211_FLAG_NEED_RTNL,
13638 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
13639 .doit = nl80211_set_rekey_data,
13640 .policy = nl80211_policy,
13641 .flags = GENL_UNS_ADMIN_PERM,
13642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13643 NL80211_FLAG_NEED_RTNL |
13644 NL80211_FLAG_CLEAR_SKB,
13647 .cmd = NL80211_CMD_TDLS_MGMT,
13648 .doit = nl80211_tdls_mgmt,
13649 .policy = nl80211_policy,
13650 .flags = GENL_UNS_ADMIN_PERM,
13651 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13652 NL80211_FLAG_NEED_RTNL,
13655 .cmd = NL80211_CMD_TDLS_OPER,
13656 .doit = nl80211_tdls_oper,
13657 .policy = nl80211_policy,
13658 .flags = GENL_UNS_ADMIN_PERM,
13659 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13660 NL80211_FLAG_NEED_RTNL,
13663 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
13664 .doit = nl80211_register_unexpected_frame,
13665 .policy = nl80211_policy,
13666 .flags = GENL_UNS_ADMIN_PERM,
13667 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13668 NL80211_FLAG_NEED_RTNL,
13671 .cmd = NL80211_CMD_PROBE_CLIENT,
13672 .doit = nl80211_probe_client,
13673 .policy = nl80211_policy,
13674 .flags = GENL_UNS_ADMIN_PERM,
13675 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13676 NL80211_FLAG_NEED_RTNL,
13679 .cmd = NL80211_CMD_REGISTER_BEACONS,
13680 .doit = nl80211_register_beacons,
13681 .policy = nl80211_policy,
13682 .flags = GENL_UNS_ADMIN_PERM,
13683 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13684 NL80211_FLAG_NEED_RTNL,
13687 .cmd = NL80211_CMD_SET_NOACK_MAP,
13688 .doit = nl80211_set_noack_map,
13689 .policy = nl80211_policy,
13690 .flags = GENL_UNS_ADMIN_PERM,
13691 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13692 NL80211_FLAG_NEED_RTNL,
13695 .cmd = NL80211_CMD_START_P2P_DEVICE,
13696 .doit = nl80211_start_p2p_device,
13697 .policy = nl80211_policy,
13698 .flags = GENL_UNS_ADMIN_PERM,
13699 .internal_flags = NL80211_FLAG_NEED_WDEV |
13700 NL80211_FLAG_NEED_RTNL,
13703 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
13704 .doit = nl80211_stop_p2p_device,
13705 .policy = nl80211_policy,
13706 .flags = GENL_UNS_ADMIN_PERM,
13707 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13708 NL80211_FLAG_NEED_RTNL,
13711 .cmd = NL80211_CMD_START_NAN,
13712 .doit = nl80211_start_nan,
13713 .policy = nl80211_policy,
13714 .flags = GENL_ADMIN_PERM,
13715 .internal_flags = NL80211_FLAG_NEED_WDEV |
13716 NL80211_FLAG_NEED_RTNL,
13719 .cmd = NL80211_CMD_STOP_NAN,
13720 .doit = nl80211_stop_nan,
13721 .policy = nl80211_policy,
13722 .flags = GENL_ADMIN_PERM,
13723 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13724 NL80211_FLAG_NEED_RTNL,
13727 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
13728 .doit = nl80211_nan_add_func,
13729 .policy = nl80211_policy,
13730 .flags = GENL_ADMIN_PERM,
13731 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13732 NL80211_FLAG_NEED_RTNL,
13735 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
13736 .doit = nl80211_nan_del_func,
13737 .policy = nl80211_policy,
13738 .flags = GENL_ADMIN_PERM,
13739 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13740 NL80211_FLAG_NEED_RTNL,
13743 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
13744 .doit = nl80211_nan_change_config,
13745 .policy = nl80211_policy,
13746 .flags = GENL_ADMIN_PERM,
13747 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13748 NL80211_FLAG_NEED_RTNL,
13751 .cmd = NL80211_CMD_SET_MCAST_RATE,
13752 .doit = nl80211_set_mcast_rate,
13753 .policy = nl80211_policy,
13754 .flags = GENL_UNS_ADMIN_PERM,
13755 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13756 NL80211_FLAG_NEED_RTNL,
13759 .cmd = NL80211_CMD_SET_MAC_ACL,
13760 .doit = nl80211_set_mac_acl,
13761 .policy = nl80211_policy,
13762 .flags = GENL_UNS_ADMIN_PERM,
13763 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13764 NL80211_FLAG_NEED_RTNL,
13767 .cmd = NL80211_CMD_RADAR_DETECT,
13768 .doit = nl80211_start_radar_detection,
13769 .policy = nl80211_policy,
13770 .flags = GENL_UNS_ADMIN_PERM,
13771 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13772 NL80211_FLAG_NEED_RTNL,
13775 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
13776 .doit = nl80211_get_protocol_features,
13777 .policy = nl80211_policy,
13780 .cmd = NL80211_CMD_UPDATE_FT_IES,
13781 .doit = nl80211_update_ft_ies,
13782 .policy = nl80211_policy,
13783 .flags = GENL_UNS_ADMIN_PERM,
13784 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13785 NL80211_FLAG_NEED_RTNL,
13788 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
13789 .doit = nl80211_crit_protocol_start,
13790 .policy = nl80211_policy,
13791 .flags = GENL_UNS_ADMIN_PERM,
13792 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13793 NL80211_FLAG_NEED_RTNL,
13796 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
13797 .doit = nl80211_crit_protocol_stop,
13798 .policy = nl80211_policy,
13799 .flags = GENL_UNS_ADMIN_PERM,
13800 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13801 NL80211_FLAG_NEED_RTNL,
13804 .cmd = NL80211_CMD_GET_COALESCE,
13805 .doit = nl80211_get_coalesce,
13806 .policy = nl80211_policy,
13807 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13808 NL80211_FLAG_NEED_RTNL,
13811 .cmd = NL80211_CMD_SET_COALESCE,
13812 .doit = nl80211_set_coalesce,
13813 .policy = nl80211_policy,
13814 .flags = GENL_UNS_ADMIN_PERM,
13815 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13816 NL80211_FLAG_NEED_RTNL,
13819 .cmd = NL80211_CMD_CHANNEL_SWITCH,
13820 .doit = nl80211_channel_switch,
13821 .policy = nl80211_policy,
13822 .flags = GENL_UNS_ADMIN_PERM,
13823 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13824 NL80211_FLAG_NEED_RTNL,
13827 .cmd = NL80211_CMD_VENDOR,
13828 .doit = nl80211_vendor_cmd,
13829 .dumpit = nl80211_vendor_cmd_dump,
13830 .policy = nl80211_policy,
13831 .flags = GENL_UNS_ADMIN_PERM,
13832 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13833 NL80211_FLAG_NEED_RTNL,
13836 .cmd = NL80211_CMD_SET_QOS_MAP,
13837 .doit = nl80211_set_qos_map,
13838 .policy = nl80211_policy,
13839 .flags = GENL_UNS_ADMIN_PERM,
13840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13841 NL80211_FLAG_NEED_RTNL,
13844 .cmd = NL80211_CMD_ADD_TX_TS,
13845 .doit = nl80211_add_tx_ts,
13846 .policy = nl80211_policy,
13847 .flags = GENL_UNS_ADMIN_PERM,
13848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13849 NL80211_FLAG_NEED_RTNL,
13852 .cmd = NL80211_CMD_DEL_TX_TS,
13853 .doit = nl80211_del_tx_ts,
13854 .policy = nl80211_policy,
13855 .flags = GENL_UNS_ADMIN_PERM,
13856 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13857 NL80211_FLAG_NEED_RTNL,
13860 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
13861 .doit = nl80211_tdls_channel_switch,
13862 .policy = nl80211_policy,
13863 .flags = GENL_UNS_ADMIN_PERM,
13864 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13865 NL80211_FLAG_NEED_RTNL,
13868 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
13869 .doit = nl80211_tdls_cancel_channel_switch,
13870 .policy = nl80211_policy,
13871 .flags = GENL_UNS_ADMIN_PERM,
13872 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13873 NL80211_FLAG_NEED_RTNL,
13876 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
13877 .doit = nl80211_set_multicast_to_unicast,
13878 .policy = nl80211_policy,
13879 .flags = GENL_UNS_ADMIN_PERM,
13880 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13881 NL80211_FLAG_NEED_RTNL,
13884 .cmd = NL80211_CMD_SET_PMK,
13885 .doit = nl80211_set_pmk,
13886 .policy = nl80211_policy,
13887 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13888 NL80211_FLAG_NEED_RTNL,
13891 .cmd = NL80211_CMD_DEL_PMK,
13892 .doit = nl80211_del_pmk,
13893 .policy = nl80211_policy,
13894 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13895 NL80211_FLAG_NEED_RTNL,
13898 .cmd = NL80211_CMD_EXTERNAL_AUTH,
13899 .doit = nl80211_external_auth,
13900 .policy = nl80211_policy,
13901 .flags = GENL_ADMIN_PERM,
13902 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13903 NL80211_FLAG_NEED_RTNL,
13906 .cmd = NL80211_CMD_CONTROL_PORT_FRAME,
13907 .doit = nl80211_tx_control_port,
13908 .policy = nl80211_policy,
13909 .flags = GENL_UNS_ADMIN_PERM,
13910 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13911 NL80211_FLAG_NEED_RTNL,
13915 static struct genl_family nl80211_fam __ro_after_init = {
13916 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13917 .hdrsize = 0, /* no private header */
13918 .version = 1, /* no particular meaning now */
13919 .maxattr = NL80211_ATTR_MAX,
13921 .pre_doit = nl80211_pre_doit,
13922 .post_doit = nl80211_post_doit,
13923 .module = THIS_MODULE,
13924 .ops = nl80211_ops,
13925 .n_ops = ARRAY_SIZE(nl80211_ops),
13926 .mcgrps = nl80211_mcgrps,
13927 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13930 /* notification functions */
13932 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13933 enum nl80211_commands cmd)
13935 struct sk_buff *msg;
13936 struct nl80211_dump_wiphy_state state = {};
13938 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13939 cmd != NL80211_CMD_DEL_WIPHY);
13941 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13945 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
13950 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13951 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13954 void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13955 struct wireless_dev *wdev,
13956 enum nl80211_commands cmd)
13958 struct sk_buff *msg;
13960 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13961 cmd != NL80211_CMD_DEL_INTERFACE);
13963 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13967 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13968 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13973 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13974 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13977 static int nl80211_add_scan_req(struct sk_buff *msg,
13978 struct cfg80211_registered_device *rdev)
13980 struct cfg80211_scan_request *req = rdev->scan_req;
13981 struct nlattr *nest;
13987 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13989 goto nla_put_failure;
13990 for (i = 0; i < req->n_ssids; i++) {
13991 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13992 goto nla_put_failure;
13994 nla_nest_end(msg, nest);
13996 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13998 goto nla_put_failure;
13999 for (i = 0; i < req->n_channels; i++) {
14000 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
14001 goto nla_put_failure;
14003 nla_nest_end(msg, nest);
14006 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
14007 goto nla_put_failure;
14010 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
14011 goto nla_put_failure;
14013 if (req->info.scan_start_tsf &&
14014 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
14015 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
14016 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
14017 req->info.tsf_bssid)))
14018 goto nla_put_failure;
14025 static int nl80211_prep_scan_msg(struct sk_buff *msg,
14026 struct cfg80211_registered_device *rdev,
14027 struct wireless_dev *wdev,
14028 u32 portid, u32 seq, int flags,
14033 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
14037 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14038 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14039 wdev->netdev->ifindex)) ||
14040 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14042 goto nla_put_failure;
14044 /* ignore errors and send incomplete event anyway */
14045 nl80211_add_scan_req(msg, rdev);
14047 genlmsg_end(msg, hdr);
14051 genlmsg_cancel(msg, hdr);
14056 nl80211_prep_sched_scan_msg(struct sk_buff *msg,
14057 struct cfg80211_sched_scan_request *req, u32 cmd)
14061 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14065 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
14066 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
14067 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
14068 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
14070 goto nla_put_failure;
14072 genlmsg_end(msg, hdr);
14076 genlmsg_cancel(msg, hdr);
14080 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
14081 struct wireless_dev *wdev)
14083 struct sk_buff *msg;
14085 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14089 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
14090 NL80211_CMD_TRIGGER_SCAN) < 0) {
14095 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14096 NL80211_MCGRP_SCAN, GFP_KERNEL);
14099 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
14100 struct wireless_dev *wdev, bool aborted)
14102 struct sk_buff *msg;
14104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14108 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
14109 aborted ? NL80211_CMD_SCAN_ABORTED :
14110 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
14118 /* send message created by nl80211_build_scan_msg() */
14119 void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
14120 struct sk_buff *msg)
14125 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14126 NL80211_MCGRP_SCAN, GFP_KERNEL);
14129 void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
14131 struct sk_buff *msg;
14133 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14137 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
14142 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
14143 NL80211_MCGRP_SCAN, GFP_KERNEL);
14146 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
14147 struct regulatory_request *request)
14149 /* Userspace can always count this one always being set */
14150 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
14151 goto nla_put_failure;
14153 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
14154 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
14155 NL80211_REGDOM_TYPE_WORLD))
14156 goto nla_put_failure;
14157 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
14158 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
14159 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
14160 goto nla_put_failure;
14161 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
14162 request->intersect) {
14163 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
14164 NL80211_REGDOM_TYPE_INTERSECTION))
14165 goto nla_put_failure;
14167 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
14168 NL80211_REGDOM_TYPE_COUNTRY) ||
14169 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
14171 goto nla_put_failure;
14174 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
14175 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
14178 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
14179 goto nla_put_failure;
14182 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
14183 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
14184 goto nla_put_failure;
14194 * This can happen on global regulatory changes or device specific settings
14195 * based on custom regulatory domains.
14197 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
14198 struct regulatory_request *request)
14200 struct sk_buff *msg;
14203 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14207 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
14213 if (nl80211_reg_change_event_fill(msg, request) == false)
14214 goto nla_put_failure;
14216 genlmsg_end(msg, hdr);
14219 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
14220 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
14229 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
14230 struct net_device *netdev,
14231 const u8 *buf, size_t len,
14232 enum nl80211_commands cmd, gfp_t gfp,
14235 struct sk_buff *msg;
14238 msg = nlmsg_new(100 + len, gfp);
14242 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14248 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14249 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14250 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
14251 goto nla_put_failure;
14253 if (uapsd_queues >= 0) {
14254 struct nlattr *nla_wmm =
14255 nla_nest_start(msg, NL80211_ATTR_STA_WME);
14257 goto nla_put_failure;
14259 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
14261 goto nla_put_failure;
14263 nla_nest_end(msg, nla_wmm);
14266 genlmsg_end(msg, hdr);
14268 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14269 NL80211_MCGRP_MLME, gfp);
14276 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
14277 struct net_device *netdev, const u8 *buf,
14278 size_t len, gfp_t gfp)
14280 nl80211_send_mlme_event(rdev, netdev, buf, len,
14281 NL80211_CMD_AUTHENTICATE, gfp, -1);
14284 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
14285 struct net_device *netdev, const u8 *buf,
14286 size_t len, gfp_t gfp, int uapsd_queues)
14288 nl80211_send_mlme_event(rdev, netdev, buf, len,
14289 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
14292 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
14293 struct net_device *netdev, const u8 *buf,
14294 size_t len, gfp_t gfp)
14296 nl80211_send_mlme_event(rdev, netdev, buf, len,
14297 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
14300 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
14301 struct net_device *netdev, const u8 *buf,
14302 size_t len, gfp_t gfp)
14304 nl80211_send_mlme_event(rdev, netdev, buf, len,
14305 NL80211_CMD_DISASSOCIATE, gfp, -1);
14308 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
14311 struct wireless_dev *wdev = dev->ieee80211_ptr;
14312 struct wiphy *wiphy = wdev->wiphy;
14313 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14314 const struct ieee80211_mgmt *mgmt = (void *)buf;
14317 if (WARN_ON(len < 2))
14320 if (ieee80211_is_deauth(mgmt->frame_control))
14321 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
14323 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
14325 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
14326 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
14328 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
14330 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
14331 struct net_device *netdev, int cmd,
14332 const u8 *addr, gfp_t gfp)
14334 struct sk_buff *msg;
14337 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14341 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14347 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14348 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14349 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
14350 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14351 goto nla_put_failure;
14353 genlmsg_end(msg, hdr);
14355 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14356 NL80211_MCGRP_MLME, gfp);
14363 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
14364 struct net_device *netdev, const u8 *addr,
14367 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
14371 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
14372 struct net_device *netdev, const u8 *addr,
14375 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
14379 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
14380 struct net_device *netdev,
14381 struct cfg80211_connect_resp_params *cr,
14384 struct sk_buff *msg;
14387 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
14388 cr->fils.kek_len + cr->fils.pmk_len +
14389 (cr->fils.pmkid ? WLAN_PMKID_LEN : 0), gfp);
14393 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
14399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14400 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14402 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
14403 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
14404 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
14407 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
14408 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
14409 cr->timeout_reason))) ||
14411 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
14413 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
14415 (cr->fils.update_erp_next_seq_num &&
14416 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
14417 cr->fils.erp_next_seq_num)) ||
14418 (cr->status == WLAN_STATUS_SUCCESS &&
14420 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils.kek_len,
14423 nla_put(msg, NL80211_ATTR_PMK, cr->fils.pmk_len, cr->fils.pmk)) ||
14425 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->fils.pmkid)))))
14426 goto nla_put_failure;
14428 genlmsg_end(msg, hdr);
14430 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14431 NL80211_MCGRP_MLME, gfp);
14438 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
14439 struct net_device *netdev,
14440 struct cfg80211_roam_info *info, gfp_t gfp)
14442 struct sk_buff *msg;
14444 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
14446 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len +
14447 info->fils.kek_len + info->fils.pmk_len +
14448 (info->fils.pmkid ? WLAN_PMKID_LEN : 0), gfp);
14452 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
14458 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14459 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14460 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
14462 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
14465 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
14467 (info->fils.update_erp_next_seq_num &&
14468 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
14469 info->fils.erp_next_seq_num)) ||
14471 nla_put(msg, NL80211_ATTR_FILS_KEK, info->fils.kek_len,
14472 info->fils.kek)) ||
14474 nla_put(msg, NL80211_ATTR_PMK, info->fils.pmk_len, info->fils.pmk)) ||
14475 (info->fils.pmkid &&
14476 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, info->fils.pmkid)))
14477 goto nla_put_failure;
14479 genlmsg_end(msg, hdr);
14481 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14482 NL80211_MCGRP_MLME, gfp);
14489 void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
14490 struct net_device *netdev, const u8 *bssid)
14492 struct sk_buff *msg;
14495 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14499 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PORT_AUTHORIZED);
14505 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14506 goto nla_put_failure;
14508 genlmsg_end(msg, hdr);
14510 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14511 NL80211_MCGRP_MLME, GFP_KERNEL);
14518 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
14519 struct net_device *netdev, u16 reason,
14520 const u8 *ie, size_t ie_len, bool from_ap)
14522 struct sk_buff *msg;
14525 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
14529 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
14535 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14536 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14538 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
14540 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
14541 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
14542 goto nla_put_failure;
14544 genlmsg_end(msg, hdr);
14546 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14547 NL80211_MCGRP_MLME, GFP_KERNEL);
14554 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
14555 struct net_device *netdev, const u8 *bssid,
14558 struct sk_buff *msg;
14561 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14565 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
14571 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14572 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14573 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14574 goto nla_put_failure;
14576 genlmsg_end(msg, hdr);
14578 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14579 NL80211_MCGRP_MLME, gfp);
14586 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
14587 const u8* ie, u8 ie_len, gfp_t gfp)
14589 struct wireless_dev *wdev = dev->ieee80211_ptr;
14590 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14591 struct sk_buff *msg;
14594 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
14597 trace_cfg80211_notify_new_peer_candidate(dev, addr);
14599 msg = nlmsg_new(100 + ie_len, gfp);
14603 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
14609 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14610 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14611 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
14613 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
14614 goto nla_put_failure;
14616 genlmsg_end(msg, hdr);
14618 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14619 NL80211_MCGRP_MLME, gfp);
14625 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
14627 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
14628 struct net_device *netdev, const u8 *addr,
14629 enum nl80211_key_type key_type, int key_id,
14630 const u8 *tsc, gfp_t gfp)
14632 struct sk_buff *msg;
14635 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14639 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
14645 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14646 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14647 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
14648 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
14650 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
14651 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
14652 goto nla_put_failure;
14654 genlmsg_end(msg, hdr);
14656 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14657 NL80211_MCGRP_MLME, gfp);
14664 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
14665 struct ieee80211_channel *channel_before,
14666 struct ieee80211_channel *channel_after)
14668 struct sk_buff *msg;
14670 struct nlattr *nl_freq;
14672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
14676 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
14683 * Since we are applying the beacon hint to a wiphy we know its
14684 * wiphy_idx is valid
14686 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
14687 goto nla_put_failure;
14690 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
14692 goto nla_put_failure;
14694 if (nl80211_msg_put_channel(msg, wiphy, channel_before, false))
14695 goto nla_put_failure;
14696 nla_nest_end(msg, nl_freq);
14699 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
14701 goto nla_put_failure;
14703 if (nl80211_msg_put_channel(msg, wiphy, channel_after, false))
14704 goto nla_put_failure;
14705 nla_nest_end(msg, nl_freq);
14707 genlmsg_end(msg, hdr);
14710 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
14711 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
14720 static void nl80211_send_remain_on_chan_event(
14721 int cmd, struct cfg80211_registered_device *rdev,
14722 struct wireless_dev *wdev, u64 cookie,
14723 struct ieee80211_channel *chan,
14724 unsigned int duration, gfp_t gfp)
14726 struct sk_buff *msg;
14729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14733 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14739 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14740 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14741 wdev->netdev->ifindex)) ||
14742 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14743 NL80211_ATTR_PAD) ||
14744 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
14745 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
14746 NL80211_CHAN_NO_HT) ||
14747 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14749 goto nla_put_failure;
14751 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
14752 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
14753 goto nla_put_failure;
14755 genlmsg_end(msg, hdr);
14757 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14758 NL80211_MCGRP_MLME, gfp);
14765 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
14766 struct ieee80211_channel *chan,
14767 unsigned int duration, gfp_t gfp)
14769 struct wiphy *wiphy = wdev->wiphy;
14770 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14772 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
14773 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
14774 rdev, wdev, cookie, chan,
14777 EXPORT_SYMBOL(cfg80211_ready_on_channel);
14779 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
14780 struct ieee80211_channel *chan,
14783 struct wiphy *wiphy = wdev->wiphy;
14784 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14786 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
14787 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
14788 rdev, wdev, cookie, chan, 0, gfp);
14790 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
14792 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
14793 struct station_info *sinfo, gfp_t gfp)
14795 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14796 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14797 struct sk_buff *msg;
14799 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
14801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14805 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
14806 rdev, dev, mac_addr, sinfo) < 0) {
14811 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14812 NL80211_MCGRP_MLME, gfp);
14814 EXPORT_SYMBOL(cfg80211_new_sta);
14816 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
14817 struct station_info *sinfo, gfp_t gfp)
14819 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14820 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14821 struct sk_buff *msg;
14822 struct station_info empty_sinfo = {};
14825 sinfo = &empty_sinfo;
14827 trace_cfg80211_del_sta(dev, mac_addr);
14829 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14831 cfg80211_sinfo_release_content(sinfo);
14835 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
14836 rdev, dev, mac_addr, sinfo) < 0) {
14841 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14842 NL80211_MCGRP_MLME, gfp);
14844 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
14846 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
14847 enum nl80211_connect_failed_reason reason,
14850 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14851 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14852 struct sk_buff *msg;
14855 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
14859 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
14865 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14866 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
14867 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
14868 goto nla_put_failure;
14870 genlmsg_end(msg, hdr);
14872 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14873 NL80211_MCGRP_MLME, gfp);
14879 EXPORT_SYMBOL(cfg80211_conn_failed);
14881 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
14882 const u8 *addr, gfp_t gfp)
14884 struct wireless_dev *wdev = dev->ieee80211_ptr;
14885 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14886 struct sk_buff *msg;
14888 u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid);
14893 msg = nlmsg_new(100, gfp);
14897 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14903 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14904 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14905 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14906 goto nla_put_failure;
14908 genlmsg_end(msg, hdr);
14909 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14917 bool cfg80211_rx_spurious_frame(struct net_device *dev,
14918 const u8 *addr, gfp_t gfp)
14920 struct wireless_dev *wdev = dev->ieee80211_ptr;
14923 trace_cfg80211_rx_spurious_frame(dev, addr);
14925 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14926 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
14927 trace_cfg80211_return_bool(false);
14930 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
14932 trace_cfg80211_return_bool(ret);
14935 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
14937 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
14938 const u8 *addr, gfp_t gfp)
14940 struct wireless_dev *wdev = dev->ieee80211_ptr;
14943 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
14945 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14946 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
14947 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
14948 trace_cfg80211_return_bool(false);
14951 ret = __nl80211_unexpected_frame(dev,
14952 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
14954 trace_cfg80211_return_bool(ret);
14957 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
14959 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
14960 struct wireless_dev *wdev, u32 nlportid,
14961 int freq, int sig_dbm,
14962 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
14964 struct net_device *netdev = wdev->netdev;
14965 struct sk_buff *msg;
14968 msg = nlmsg_new(100 + len, gfp);
14972 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14978 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14979 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14980 netdev->ifindex)) ||
14981 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14982 NL80211_ATTR_PAD) ||
14983 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14985 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14986 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14988 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
14989 goto nla_put_failure;
14991 genlmsg_end(msg, hdr);
14993 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15000 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
15001 const u8 *buf, size_t len, bool ack, gfp_t gfp)
15003 struct wiphy *wiphy = wdev->wiphy;
15004 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15005 struct net_device *netdev = wdev->netdev;
15006 struct sk_buff *msg;
15009 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
15011 msg = nlmsg_new(100 + len, gfp);
15015 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
15021 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15022 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
15023 netdev->ifindex)) ||
15024 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15025 NL80211_ATTR_PAD) ||
15026 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
15027 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
15028 NL80211_ATTR_PAD) ||
15029 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
15030 goto nla_put_failure;
15032 genlmsg_end(msg, hdr);
15034 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15035 NL80211_MCGRP_MLME, gfp);
15041 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
15043 static int __nl80211_rx_control_port(struct net_device *dev,
15044 struct sk_buff *skb,
15045 bool unencrypted, gfp_t gfp)
15047 struct wireless_dev *wdev = dev->ieee80211_ptr;
15048 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15049 struct ethhdr *ehdr = eth_hdr(skb);
15050 const u8 *addr = ehdr->h_source;
15051 u16 proto = be16_to_cpu(skb->protocol);
15052 struct sk_buff *msg;
15054 struct nlattr *frame;
15056 u32 nlportid = READ_ONCE(wdev->conn_owner_nlportid);
15061 msg = nlmsg_new(100 + skb->len, gfp);
15065 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONTROL_PORT_FRAME);
15071 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15072 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15073 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15074 NL80211_ATTR_PAD) ||
15075 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
15076 nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, proto) ||
15077 (unencrypted && nla_put_flag(msg,
15078 NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
15079 goto nla_put_failure;
15081 frame = nla_reserve(msg, NL80211_ATTR_FRAME, skb->len);
15083 goto nla_put_failure;
15085 skb_copy_bits(skb, 0, nla_data(frame), skb->len);
15086 genlmsg_end(msg, hdr);
15088 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15095 bool cfg80211_rx_control_port(struct net_device *dev,
15096 struct sk_buff *skb, bool unencrypted)
15100 trace_cfg80211_rx_control_port(dev, skb, unencrypted);
15101 ret = __nl80211_rx_control_port(dev, skb, unencrypted, GFP_ATOMIC);
15102 trace_cfg80211_return_bool(ret == 0);
15105 EXPORT_SYMBOL(cfg80211_rx_control_port);
15107 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
15108 const char *mac, gfp_t gfp)
15110 struct wireless_dev *wdev = dev->ieee80211_ptr;
15111 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15112 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15118 cb = (void **)msg->cb;
15120 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
15126 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15127 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
15128 goto nla_put_failure;
15130 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
15131 goto nla_put_failure;
15133 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
15135 goto nla_put_failure;
15145 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
15147 void **cb = (void **)msg->cb;
15148 struct cfg80211_registered_device *rdev = cb[2];
15150 nla_nest_end(msg, cb[1]);
15151 genlmsg_end(msg, cb[0]);
15153 memset(msg->cb, 0, sizeof(msg->cb));
15155 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15156 NL80211_MCGRP_MLME, gfp);
15159 void cfg80211_cqm_rssi_notify(struct net_device *dev,
15160 enum nl80211_cqm_rssi_threshold_event rssi_event,
15161 s32 rssi_level, gfp_t gfp)
15163 struct sk_buff *msg;
15164 struct wireless_dev *wdev = dev->ieee80211_ptr;
15165 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15167 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
15169 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
15170 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
15173 if (wdev->cqm_config) {
15174 wdev->cqm_config->last_rssi_event_value = rssi_level;
15176 cfg80211_cqm_rssi_update(rdev, dev);
15178 if (rssi_level == 0)
15179 rssi_level = wdev->cqm_config->last_rssi_event_value;
15182 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
15186 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
15188 goto nla_put_failure;
15190 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
15192 goto nla_put_failure;
15194 cfg80211_send_cqm(msg, gfp);
15201 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
15203 void cfg80211_cqm_txe_notify(struct net_device *dev,
15204 const u8 *peer, u32 num_packets,
15205 u32 rate, u32 intvl, gfp_t gfp)
15207 struct sk_buff *msg;
15209 msg = cfg80211_prepare_cqm(dev, peer, gfp);
15213 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
15214 goto nla_put_failure;
15216 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
15217 goto nla_put_failure;
15219 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
15220 goto nla_put_failure;
15222 cfg80211_send_cqm(msg, gfp);
15228 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
15230 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
15231 const u8 *peer, u32 num_packets, gfp_t gfp)
15233 struct sk_buff *msg;
15235 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
15237 msg = cfg80211_prepare_cqm(dev, peer, gfp);
15241 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
15242 goto nla_put_failure;
15244 cfg80211_send_cqm(msg, gfp);
15250 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
15252 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
15254 struct sk_buff *msg;
15256 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
15260 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
15261 goto nla_put_failure;
15263 cfg80211_send_cqm(msg, gfp);
15269 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
15271 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
15272 struct net_device *netdev, const u8 *bssid,
15273 const u8 *replay_ctr, gfp_t gfp)
15275 struct sk_buff *msg;
15276 struct nlattr *rekey_attr;
15279 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15283 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
15289 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15290 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15291 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
15292 goto nla_put_failure;
15294 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
15296 goto nla_put_failure;
15298 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
15299 NL80211_REPLAY_CTR_LEN, replay_ctr))
15300 goto nla_put_failure;
15302 nla_nest_end(msg, rekey_attr);
15304 genlmsg_end(msg, hdr);
15306 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15307 NL80211_MCGRP_MLME, gfp);
15314 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
15315 const u8 *replay_ctr, gfp_t gfp)
15317 struct wireless_dev *wdev = dev->ieee80211_ptr;
15318 struct wiphy *wiphy = wdev->wiphy;
15319 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15321 trace_cfg80211_gtk_rekey_notify(dev, bssid);
15322 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
15324 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
15327 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
15328 struct net_device *netdev, int index,
15329 const u8 *bssid, bool preauth, gfp_t gfp)
15331 struct sk_buff *msg;
15332 struct nlattr *attr;
15335 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15339 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
15345 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15346 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
15347 goto nla_put_failure;
15349 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
15351 goto nla_put_failure;
15353 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
15354 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
15356 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
15357 goto nla_put_failure;
15359 nla_nest_end(msg, attr);
15361 genlmsg_end(msg, hdr);
15363 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15364 NL80211_MCGRP_MLME, gfp);
15371 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
15372 const u8 *bssid, bool preauth, gfp_t gfp)
15374 struct wireless_dev *wdev = dev->ieee80211_ptr;
15375 struct wiphy *wiphy = wdev->wiphy;
15376 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15378 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
15379 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
15381 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
15383 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
15384 struct net_device *netdev,
15385 struct cfg80211_chan_def *chandef,
15387 enum nl80211_commands notif,
15390 struct sk_buff *msg;
15393 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15397 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
15403 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
15404 goto nla_put_failure;
15406 if (nl80211_send_chandef(msg, chandef))
15407 goto nla_put_failure;
15409 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
15410 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
15411 goto nla_put_failure;
15413 genlmsg_end(msg, hdr);
15415 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15416 NL80211_MCGRP_MLME, gfp);
15423 void cfg80211_ch_switch_notify(struct net_device *dev,
15424 struct cfg80211_chan_def *chandef)
15426 struct wireless_dev *wdev = dev->ieee80211_ptr;
15427 struct wiphy *wiphy = wdev->wiphy;
15428 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15430 ASSERT_WDEV_LOCK(wdev);
15432 trace_cfg80211_ch_switch_notify(dev, chandef);
15434 wdev->chandef = *chandef;
15435 wdev->preset_chandef = *chandef;
15436 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
15437 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
15439 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
15441 void cfg80211_ch_switch_started_notify(struct net_device *dev,
15442 struct cfg80211_chan_def *chandef,
15445 struct wireless_dev *wdev = dev->ieee80211_ptr;
15446 struct wiphy *wiphy = wdev->wiphy;
15447 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15449 trace_cfg80211_ch_switch_started_notify(dev, chandef);
15451 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
15452 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
15454 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
15457 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
15458 const struct cfg80211_chan_def *chandef,
15459 enum nl80211_radar_event event,
15460 struct net_device *netdev, gfp_t gfp)
15462 struct sk_buff *msg;
15465 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15469 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
15475 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
15476 goto nla_put_failure;
15478 /* NOP and radar events don't need a netdev parameter */
15480 struct wireless_dev *wdev = netdev->ieee80211_ptr;
15482 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15483 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15485 goto nla_put_failure;
15488 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
15489 goto nla_put_failure;
15491 if (nl80211_send_chandef(msg, chandef))
15492 goto nla_put_failure;
15494 genlmsg_end(msg, hdr);
15496 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15497 NL80211_MCGRP_MLME, gfp);
15504 void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac,
15505 struct sta_opmode_info *sta_opmode,
15508 struct sk_buff *msg;
15509 struct wireless_dev *wdev = dev->ieee80211_ptr;
15510 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15520 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STA_OPMODE_CHANGED);
15526 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
15527 goto nla_put_failure;
15529 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
15530 goto nla_put_failure;
15532 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
15533 goto nla_put_failure;
15535 if ((sta_opmode->changed & STA_OPMODE_SMPS_MODE_CHANGED) &&
15536 nla_put_u8(msg, NL80211_ATTR_SMPS_MODE, sta_opmode->smps_mode))
15537 goto nla_put_failure;
15539 if ((sta_opmode->changed & STA_OPMODE_MAX_BW_CHANGED) &&
15540 nla_put_u8(msg, NL80211_ATTR_CHANNEL_WIDTH, sta_opmode->bw))
15541 goto nla_put_failure;
15543 if ((sta_opmode->changed & STA_OPMODE_N_SS_CHANGED) &&
15544 nla_put_u8(msg, NL80211_ATTR_NSS, sta_opmode->rx_nss))
15545 goto nla_put_failure;
15547 genlmsg_end(msg, hdr);
15549 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15550 NL80211_MCGRP_MLME, gfp);
15557 EXPORT_SYMBOL(cfg80211_sta_opmode_change_notify);
15559 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
15560 u64 cookie, bool acked, s32 ack_signal,
15561 bool is_valid_ack_signal, gfp_t gfp)
15563 struct wireless_dev *wdev = dev->ieee80211_ptr;
15564 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15565 struct sk_buff *msg;
15568 trace_cfg80211_probe_status(dev, addr, cookie, acked);
15570 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15575 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
15581 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15582 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15583 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
15584 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
15585 NL80211_ATTR_PAD) ||
15586 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)) ||
15587 (is_valid_ack_signal && nla_put_s32(msg, NL80211_ATTR_ACK_SIGNAL,
15589 goto nla_put_failure;
15591 genlmsg_end(msg, hdr);
15593 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15594 NL80211_MCGRP_MLME, gfp);
15600 EXPORT_SYMBOL(cfg80211_probe_status);
15602 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
15603 const u8 *frame, size_t len,
15604 int freq, int sig_dbm)
15606 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15607 struct sk_buff *msg;
15609 struct cfg80211_beacon_registration *reg;
15611 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
15613 spin_lock_bh(&rdev->beacon_registrations_lock);
15614 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
15615 msg = nlmsg_new(len + 100, GFP_ATOMIC);
15617 spin_unlock_bh(&rdev->beacon_registrations_lock);
15621 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
15623 goto nla_put_failure;
15625 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15627 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
15629 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
15630 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
15631 goto nla_put_failure;
15633 genlmsg_end(msg, hdr);
15635 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
15637 spin_unlock_bh(&rdev->beacon_registrations_lock);
15641 spin_unlock_bh(&rdev->beacon_registrations_lock);
15644 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
15647 static int cfg80211_net_detect_results(struct sk_buff *msg,
15648 struct cfg80211_wowlan_wakeup *wakeup)
15650 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
15651 struct nlattr *nl_results, *nl_match, *nl_freqs;
15654 nl_results = nla_nest_start(
15655 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
15659 for (i = 0; i < nd->n_matches; i++) {
15660 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
15662 nl_match = nla_nest_start(msg, i);
15666 /* The SSID attribute is optional in nl80211, but for
15667 * simplicity reasons it's always present in the
15668 * cfg80211 structure. If a driver can't pass the
15669 * SSID, that needs to be changed. A zero length SSID
15670 * is still a valid SSID (wildcard), so it cannot be
15671 * used for this purpose.
15673 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
15674 match->ssid.ssid)) {
15675 nla_nest_cancel(msg, nl_match);
15679 if (match->n_channels) {
15680 nl_freqs = nla_nest_start(
15681 msg, NL80211_ATTR_SCAN_FREQUENCIES);
15683 nla_nest_cancel(msg, nl_match);
15687 for (j = 0; j < match->n_channels; j++) {
15688 if (nla_put_u32(msg, j, match->channels[j])) {
15689 nla_nest_cancel(msg, nl_freqs);
15690 nla_nest_cancel(msg, nl_match);
15695 nla_nest_end(msg, nl_freqs);
15698 nla_nest_end(msg, nl_match);
15702 nla_nest_end(msg, nl_results);
15706 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
15707 struct cfg80211_wowlan_wakeup *wakeup,
15710 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15711 struct sk_buff *msg;
15715 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
15718 size += wakeup->packet_present_len;
15720 msg = nlmsg_new(size, gfp);
15724 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
15728 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15729 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15733 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
15734 wdev->netdev->ifindex))
15738 struct nlattr *reasons;
15740 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
15744 if (wakeup->disconnect &&
15745 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
15747 if (wakeup->magic_pkt &&
15748 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
15750 if (wakeup->gtk_rekey_failure &&
15751 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
15753 if (wakeup->eap_identity_req &&
15754 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
15756 if (wakeup->four_way_handshake &&
15757 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
15759 if (wakeup->rfkill_release &&
15760 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
15763 if (wakeup->pattern_idx >= 0 &&
15764 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
15765 wakeup->pattern_idx))
15768 if (wakeup->tcp_match &&
15769 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
15772 if (wakeup->tcp_connlost &&
15773 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
15776 if (wakeup->tcp_nomoretokens &&
15778 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
15781 if (wakeup->packet) {
15782 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
15783 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
15785 if (!wakeup->packet_80211) {
15787 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
15789 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
15792 if (wakeup->packet_len &&
15793 nla_put_u32(msg, len_attr, wakeup->packet_len))
15796 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
15801 if (wakeup->net_detect &&
15802 cfg80211_net_detect_results(msg, wakeup))
15805 nla_nest_end(msg, reasons);
15808 genlmsg_end(msg, hdr);
15810 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15811 NL80211_MCGRP_MLME, gfp);
15817 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
15820 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
15821 enum nl80211_tdls_operation oper,
15822 u16 reason_code, gfp_t gfp)
15824 struct wireless_dev *wdev = dev->ieee80211_ptr;
15825 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15826 struct sk_buff *msg;
15829 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
15832 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15836 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
15842 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15843 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15844 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
15845 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
15846 (reason_code > 0 &&
15847 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
15848 goto nla_put_failure;
15850 genlmsg_end(msg, hdr);
15852 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15853 NL80211_MCGRP_MLME, gfp);
15859 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
15861 static int nl80211_netlink_notify(struct notifier_block * nb,
15862 unsigned long state,
15865 struct netlink_notify *notify = _notify;
15866 struct cfg80211_registered_device *rdev;
15867 struct wireless_dev *wdev;
15868 struct cfg80211_beacon_registration *reg, *tmp;
15870 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
15871 return NOTIFY_DONE;
15875 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
15876 struct cfg80211_sched_scan_request *sched_scan_req;
15878 list_for_each_entry_rcu(sched_scan_req,
15879 &rdev->sched_scan_req_list,
15881 if (sched_scan_req->owner_nlportid == notify->portid) {
15882 sched_scan_req->nl_owner_dead = true;
15883 schedule_work(&rdev->sched_scan_stop_wk);
15887 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15888 cfg80211_mlme_unregister_socket(wdev, notify->portid);
15890 if (wdev->owner_nlportid == notify->portid) {
15891 wdev->nl_owner_dead = true;
15892 schedule_work(&rdev->destroy_work);
15893 } else if (wdev->conn_owner_nlportid == notify->portid) {
15894 schedule_work(&wdev->disconnect_wk);
15898 spin_lock_bh(&rdev->beacon_registrations_lock);
15899 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
15901 if (reg->nlportid == notify->portid) {
15902 list_del(®->list);
15907 spin_unlock_bh(&rdev->beacon_registrations_lock);
15913 * It is possible that the user space process that is controlling the
15914 * indoor setting disappeared, so notify the regulatory core.
15916 regulatory_netlink_notify(notify->portid);
15920 static struct notifier_block nl80211_netlink_notifier = {
15921 .notifier_call = nl80211_netlink_notify,
15924 void cfg80211_ft_event(struct net_device *netdev,
15925 struct cfg80211_ft_event_params *ft_event)
15927 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
15928 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15929 struct sk_buff *msg;
15932 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
15934 if (!ft_event->target_ap)
15937 msg = nlmsg_new(100 + ft_event->ies_len + ft_event->ric_ies_len,
15942 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
15946 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15947 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15948 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
15951 if (ft_event->ies &&
15952 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
15954 if (ft_event->ric_ies &&
15955 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
15956 ft_event->ric_ies))
15959 genlmsg_end(msg, hdr);
15961 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15962 NL80211_MCGRP_MLME, GFP_KERNEL);
15967 EXPORT_SYMBOL(cfg80211_ft_event);
15969 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
15971 struct cfg80211_registered_device *rdev;
15972 struct sk_buff *msg;
15976 rdev = wiphy_to_rdev(wdev->wiphy);
15977 if (!rdev->crit_proto_nlportid)
15980 nlportid = rdev->crit_proto_nlportid;
15981 rdev->crit_proto_nlportid = 0;
15983 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15987 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
15989 goto nla_put_failure;
15991 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15992 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15994 goto nla_put_failure;
15996 genlmsg_end(msg, hdr);
15998 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
16004 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
16006 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
16008 struct wiphy *wiphy = wdev->wiphy;
16009 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
16010 struct sk_buff *msg;
16013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
16017 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
16021 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16022 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
16023 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
16027 genlmsg_end(msg, hdr);
16029 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
16030 NL80211_MCGRP_MLME, GFP_KERNEL);
16036 int cfg80211_external_auth_request(struct net_device *dev,
16037 struct cfg80211_external_auth_params *params,
16040 struct wireless_dev *wdev = dev->ieee80211_ptr;
16041 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
16042 struct sk_buff *msg;
16045 if (!wdev->conn_owner_nlportid)
16048 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
16052 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_EXTERNAL_AUTH);
16054 goto nla_put_failure;
16056 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16057 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
16058 nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, params->key_mgmt_suite) ||
16059 nla_put_u32(msg, NL80211_ATTR_EXTERNAL_AUTH_ACTION,
16061 nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, params->bssid) ||
16062 nla_put(msg, NL80211_ATTR_SSID, params->ssid.ssid_len,
16063 params->ssid.ssid))
16064 goto nla_put_failure;
16066 genlmsg_end(msg, hdr);
16067 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
16068 wdev->conn_owner_nlportid);
16075 EXPORT_SYMBOL(cfg80211_external_auth_request);
16077 /* initialisation/exit functions */
16079 int __init nl80211_init(void)
16083 err = genl_register_family(&nl80211_fam);
16087 err = netlink_register_notifier(&nl80211_netlink_notifier);
16093 genl_unregister_family(&nl80211_fam);
16097 void nl80211_exit(void)
16099 netlink_unregister_notifier(&nl80211_netlink_notifier);
16100 genl_unregister_family(&nl80211_fam);