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
10 #include <linux/module.h>
11 #include <linux/err.h>
12 #include <linux/slab.h>
13 #include <linux/list.h>
14 #include <linux/if_ether.h>
15 #include <linux/ieee80211.h>
16 #include <linux/nl80211.h>
17 #include <linux/rtnetlink.h>
18 #include <linux/netlink.h>
19 #include <linux/nospec.h>
20 #include <linux/etherdevice.h>
21 #include <net/net_namespace.h>
22 #include <net/genetlink.h>
23 #include <net/cfg80211.h>
25 #include <net/inet_connection_sock.h>
31 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
32 struct genl_info *info,
33 struct cfg80211_crypto_settings *settings,
36 /* the netlink family */
37 static struct genl_family nl80211_fam;
39 /* multicast groups */
40 enum nl80211_multicast_groups {
43 NL80211_MCGRP_REGULATORY,
47 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
50 static const struct genl_multicast_group nl80211_mcgrps[] = {
51 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
52 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
53 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
54 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
55 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
56 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
57 #ifdef CONFIG_NL80211_TESTMODE
58 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
62 /* returns ERR_PTR values */
63 static struct wireless_dev *
64 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
66 struct cfg80211_registered_device *rdev;
67 struct wireless_dev *result = NULL;
68 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
69 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
76 if (!have_ifidx && !have_wdev_id)
77 return ERR_PTR(-EINVAL);
80 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
82 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
83 wiphy_idx = wdev_id >> 32;
86 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
87 struct wireless_dev *wdev;
89 if (wiphy_net(&rdev->wiphy) != netns)
92 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
95 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
96 if (have_ifidx && wdev->netdev &&
97 wdev->netdev->ifindex == ifidx) {
101 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
113 return ERR_PTR(-ENODEV);
116 static struct cfg80211_registered_device *
117 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
119 struct cfg80211_registered_device *rdev = NULL, *tmp;
120 struct net_device *netdev;
124 if (!attrs[NL80211_ATTR_WIPHY] &&
125 !attrs[NL80211_ATTR_IFINDEX] &&
126 !attrs[NL80211_ATTR_WDEV])
127 return ERR_PTR(-EINVAL);
129 if (attrs[NL80211_ATTR_WIPHY])
130 rdev = cfg80211_rdev_by_wiphy_idx(
131 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
133 if (attrs[NL80211_ATTR_WDEV]) {
134 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
135 struct wireless_dev *wdev;
138 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
140 /* make sure wdev exists */
141 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
142 if (wdev->identifier != (u32)wdev_id)
151 if (rdev && tmp != rdev)
152 return ERR_PTR(-EINVAL);
157 if (attrs[NL80211_ATTR_IFINDEX]) {
158 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
160 netdev = __dev_get_by_index(netns, ifindex);
162 if (netdev->ieee80211_ptr)
164 netdev->ieee80211_ptr->wiphy);
168 /* not wireless device -- return error */
170 return ERR_PTR(-EINVAL);
172 /* mismatch -- return error */
173 if (rdev && tmp != rdev)
174 return ERR_PTR(-EINVAL);
181 return ERR_PTR(-ENODEV);
183 if (netns != wiphy_net(&rdev->wiphy))
184 return ERR_PTR(-ENODEV);
190 * This function returns a pointer to the driver
191 * that the genl_info item that is passed refers to.
193 * The result of this can be a PTR_ERR and hence must
194 * be checked with IS_ERR() for errors.
196 static struct cfg80211_registered_device *
197 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
199 return __cfg80211_rdev_from_attrs(netns, info->attrs);
202 /* policy for the attributes */
203 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
204 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
205 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
207 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
209 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
210 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
211 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
212 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
213 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
215 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
216 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
217 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
218 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
219 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
220 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
222 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
223 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
224 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
226 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
227 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
229 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
230 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
231 .len = WLAN_MAX_KEY_LEN },
232 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
233 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
234 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
235 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
236 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
238 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
239 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
240 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
241 .len = IEEE80211_MAX_DATA_LEN },
242 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
243 .len = IEEE80211_MAX_DATA_LEN },
244 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
245 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
246 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
247 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
248 .len = NL80211_MAX_SUPP_RATES },
249 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
250 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
251 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
252 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_MESH_ID_LEN },
254 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
256 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
257 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
259 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
260 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
261 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
262 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
263 .len = NL80211_MAX_SUPP_RATES },
264 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
266 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
267 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
269 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
271 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
272 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
273 .len = IEEE80211_MAX_DATA_LEN },
274 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
275 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
277 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
278 .len = IEEE80211_MAX_SSID_LEN },
279 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
280 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
281 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
282 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
283 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
284 [NL80211_ATTR_STA_FLAGS2] = {
285 .len = sizeof(struct nl80211_sta_flag_update),
287 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
288 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
289 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
290 [NL80211_ATTR_CONTROL_PORT_OVER_NL80211] = { .type = NLA_FLAG },
291 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
292 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
293 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
294 [NL80211_ATTR_PID] = { .type = NLA_U32 },
295 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
296 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
297 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
298 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
299 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
300 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
301 .len = IEEE80211_MAX_DATA_LEN },
302 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
303 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
304 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
305 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
306 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
307 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
308 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
309 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
310 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
311 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
312 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
313 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
314 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
315 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
316 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
317 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
318 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
319 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
320 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
321 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
322 .len = IEEE80211_MAX_DATA_LEN },
323 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
324 .len = IEEE80211_MAX_DATA_LEN },
325 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
326 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
327 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
328 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
329 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
330 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
331 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
332 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
333 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
334 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
335 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
336 .len = IEEE80211_MAX_DATA_LEN },
337 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
338 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
340 .len = NL80211_HT_CAPABILITY_LEN
342 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
343 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
344 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
345 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
346 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
347 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
348 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
349 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
350 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
351 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
352 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
353 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
354 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
355 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
356 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
357 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
358 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
359 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
360 .len = NL80211_VHT_CAPABILITY_LEN,
362 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
363 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
364 .len = IEEE80211_MAX_DATA_LEN },
365 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
366 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
367 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
368 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
369 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
370 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
371 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
372 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
373 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
374 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
375 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
376 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
377 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
378 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
379 .len = IEEE80211_QOS_MAP_LEN_MAX },
380 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
381 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
382 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
383 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
384 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
385 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
386 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
387 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
388 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
389 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
390 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
391 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
392 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
393 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
394 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
395 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
396 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
397 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
398 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
399 .len = VHT_MUMIMO_GROUPS_DATA_LEN
401 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
402 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
403 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
404 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
405 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
406 .len = FILS_MAX_KEK_LEN },
407 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
408 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
409 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
410 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
411 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
412 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
414 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
415 [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
416 .len = FILS_ERP_MAX_USERNAME_LEN },
417 [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
418 .len = FILS_ERP_MAX_REALM_LEN },
419 [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
420 [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
421 .len = FILS_ERP_MAX_RRK_LEN },
422 [NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 },
423 [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
424 [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
425 [NL80211_ATTR_EXTERNAL_AUTH_SUPPORT] = { .type = NLA_FLAG },
428 /* policy for the key attributes */
429 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
430 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
431 [NL80211_KEY_IDX] = { .type = NLA_U8 },
432 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
433 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
434 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
435 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
436 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
437 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
440 /* policy for the key default flags */
441 static const struct nla_policy
442 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
443 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
444 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
448 /* policy for WoWLAN attributes */
449 static const struct nla_policy
450 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
451 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
452 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
453 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
454 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
455 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
456 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
457 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
458 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
459 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
460 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
463 static const struct nla_policy
464 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
465 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
466 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
467 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
468 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
469 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
470 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
471 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
472 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
474 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
475 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
477 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
478 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
479 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
481 #endif /* CONFIG_PM */
483 /* policy for coalesce rule attributes */
484 static const struct nla_policy
485 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
486 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
487 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
488 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
491 /* policy for GTK rekey offload attributes */
492 static const struct nla_policy
493 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
494 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
495 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
496 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
499 static const struct nla_policy
500 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
501 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
502 .len = IEEE80211_MAX_SSID_LEN },
503 [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN },
504 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
507 static const struct nla_policy
508 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
509 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
510 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
513 static const struct nla_policy
514 nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
515 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
516 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
517 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
518 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
522 /* policy for NAN function attributes */
523 static const struct nla_policy
524 nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
525 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
526 [NL80211_NAN_FUNC_SERVICE_ID] = {
527 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
528 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
529 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
530 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
531 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
532 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
533 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
534 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
535 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
536 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
537 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
538 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
539 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
540 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
541 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
542 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
545 /* policy for Service Response Filter attributes */
546 static const struct nla_policy
547 nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
548 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
549 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
550 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
551 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
552 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
555 /* policy for packet pattern attributes */
556 static const struct nla_policy
557 nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
558 [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
559 [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
560 [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
563 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
564 struct netlink_callback *cb,
565 struct cfg80211_registered_device **rdev,
566 struct wireless_dev **wdev)
571 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
572 genl_family_attrbuf(&nl80211_fam),
573 nl80211_fam.maxattr, nl80211_policy, NULL);
577 *wdev = __cfg80211_wdev_from_attrs(
579 genl_family_attrbuf(&nl80211_fam));
581 return PTR_ERR(*wdev);
582 *rdev = wiphy_to_rdev((*wdev)->wiphy);
583 /* 0 is the first index - add 1 to parse only once */
584 cb->args[0] = (*rdev)->wiphy_idx + 1;
585 cb->args[1] = (*wdev)->identifier;
587 /* subtract the 1 again here */
588 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
589 struct wireless_dev *tmp;
593 *rdev = wiphy_to_rdev(wiphy);
596 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
597 if (tmp->identifier == cb->args[1]) {
611 static bool is_valid_ie_attr(const struct nlattr *attr)
619 pos = nla_data(attr);
640 /* message building helper */
641 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
644 /* since there is no private header just add the generic one */
645 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
648 static int nl80211_msg_put_channel(struct sk_buff *msg,
649 struct ieee80211_channel *chan,
652 /* Some channels must be completely excluded from the
653 * list to protect old user-space tools from breaking
655 if (!large && chan->flags &
656 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
659 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
661 goto nla_put_failure;
663 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
664 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
665 goto nla_put_failure;
666 if (chan->flags & IEEE80211_CHAN_NO_IR) {
667 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
668 goto nla_put_failure;
669 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
670 goto nla_put_failure;
672 if (chan->flags & IEEE80211_CHAN_RADAR) {
673 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
674 goto nla_put_failure;
678 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
680 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
682 goto nla_put_failure;
683 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
685 goto nla_put_failure;
687 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
689 goto nla_put_failure;
694 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
695 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
696 goto nla_put_failure;
697 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
698 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
699 goto nla_put_failure;
700 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
701 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
702 goto nla_put_failure;
703 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
704 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
705 goto nla_put_failure;
706 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
707 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
708 goto nla_put_failure;
709 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
710 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
711 goto nla_put_failure;
712 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
713 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
714 goto nla_put_failure;
715 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
716 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
717 goto nla_put_failure;
720 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
721 DBM_TO_MBM(chan->max_power)))
722 goto nla_put_failure;
730 /* netlink command implementations */
737 bool def_uni, def_multi;
740 static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key,
743 struct nlattr *tb[NL80211_KEY_MAX + 1];
744 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
745 nl80211_key_policy, info->extack);
749 k->def = !!tb[NL80211_KEY_DEFAULT];
750 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
759 if (tb[NL80211_KEY_IDX])
760 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
762 if (tb[NL80211_KEY_DATA]) {
763 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
764 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
767 if (tb[NL80211_KEY_SEQ]) {
768 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
769 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
772 if (tb[NL80211_KEY_CIPHER])
773 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
775 if (tb[NL80211_KEY_TYPE]) {
776 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
777 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
778 return genl_err_attr(info, -EINVAL,
779 tb[NL80211_KEY_TYPE]);
782 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
783 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
785 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
786 tb[NL80211_KEY_DEFAULT_TYPES],
787 nl80211_key_default_policy,
792 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
793 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
799 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
801 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
802 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
803 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
806 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
807 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
808 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
811 if (info->attrs[NL80211_ATTR_KEY_IDX])
812 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
814 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
815 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
817 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
818 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
827 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
828 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
829 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) {
830 GENL_SET_ERR_MSG(info, "key type out of range");
835 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
836 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
837 int err = nla_parse_nested(kdt,
838 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
839 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
840 nl80211_key_default_policy,
845 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
846 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
852 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
856 memset(k, 0, sizeof(*k));
860 if (info->attrs[NL80211_ATTR_KEY])
861 err = nl80211_parse_key_new(info, info->attrs[NL80211_ATTR_KEY], k);
863 err = nl80211_parse_key_old(info, k);
868 if (k->def && k->defmgmt) {
869 GENL_SET_ERR_MSG(info, "key with def && defmgmt is invalid");
874 if (k->def_uni || !k->def_multi) {
875 GENL_SET_ERR_MSG(info, "defmgmt key must be mcast");
882 if (k->idx < 4 || k->idx > 5) {
883 GENL_SET_ERR_MSG(info,
884 "defmgmt key idx not 4 or 5");
888 if (k->idx < 0 || k->idx > 3) {
889 GENL_SET_ERR_MSG(info, "def key idx not 0-3");
893 if (k->idx < 0 || k->idx > 5) {
894 GENL_SET_ERR_MSG(info, "key idx not 0-5");
903 static struct cfg80211_cached_keys *
904 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
905 struct genl_info *info, bool *no_ht)
907 struct nlattr *keys = info->attrs[NL80211_ATTR_KEYS];
908 struct key_parse parse;
910 struct cfg80211_cached_keys *result;
911 int rem, err, def = 0;
912 bool have_key = false;
914 nla_for_each_nested(key, keys, rem) {
922 result = kzalloc(sizeof(*result), GFP_KERNEL);
924 return ERR_PTR(-ENOMEM);
928 nla_for_each_nested(key, keys, rem) {
929 memset(&parse, 0, sizeof(parse));
932 err = nl80211_parse_key_new(info, key, &parse);
938 if (parse.idx < 0 || parse.idx > 3) {
939 GENL_SET_ERR_MSG(info, "key index out of range [0-3]");
944 GENL_SET_ERR_MSG(info,
945 "only one key can be default");
949 result->def = parse.idx;
950 if (!parse.def_uni || !parse.def_multi)
952 } else if (parse.defmgmt)
954 err = cfg80211_validate_key_settings(rdev, &parse.p,
955 parse.idx, false, NULL);
958 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
959 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
960 GENL_SET_ERR_MSG(info, "connect key must be WEP");
964 result->params[parse.idx].cipher = parse.p.cipher;
965 result->params[parse.idx].key_len = parse.p.key_len;
966 result->params[parse.idx].key = result->data[parse.idx];
967 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
969 /* must be WEP key if we got here */
974 if (result->def < 0) {
976 GENL_SET_ERR_MSG(info, "need a default/TX key");
986 static int nl80211_key_allowed(struct wireless_dev *wdev)
988 ASSERT_WDEV_LOCK(wdev);
990 switch (wdev->iftype) {
991 case NL80211_IFTYPE_AP:
992 case NL80211_IFTYPE_AP_VLAN:
993 case NL80211_IFTYPE_P2P_GO:
994 case NL80211_IFTYPE_MESH_POINT:
996 case NL80211_IFTYPE_ADHOC:
997 case NL80211_IFTYPE_STATION:
998 case NL80211_IFTYPE_P2P_CLIENT:
999 if (!wdev->current_bss)
1002 case NL80211_IFTYPE_UNSPECIFIED:
1003 case NL80211_IFTYPE_OCB:
1004 case NL80211_IFTYPE_MONITOR:
1005 case NL80211_IFTYPE_NAN:
1006 case NL80211_IFTYPE_P2P_DEVICE:
1007 case NL80211_IFTYPE_WDS:
1008 case NUM_NL80211_IFTYPES:
1015 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
1018 struct ieee80211_channel *chan;
1022 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
1023 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
1028 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
1030 struct nlattr *nl_modes = nla_nest_start(msg, attr);
1034 goto nla_put_failure;
1038 if ((ifmodes & 1) && nla_put_flag(msg, i))
1039 goto nla_put_failure;
1044 nla_nest_end(msg, nl_modes);
1051 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
1052 struct sk_buff *msg,
1055 struct nlattr *nl_combis;
1058 nl_combis = nla_nest_start(msg,
1059 NL80211_ATTR_INTERFACE_COMBINATIONS);
1061 goto nla_put_failure;
1063 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1064 const struct ieee80211_iface_combination *c;
1065 struct nlattr *nl_combi, *nl_limits;
1067 c = &wiphy->iface_combinations[i];
1069 nl_combi = nla_nest_start(msg, i + 1);
1071 goto nla_put_failure;
1073 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1075 goto nla_put_failure;
1077 for (j = 0; j < c->n_limits; j++) {
1078 struct nlattr *nl_limit;
1080 nl_limit = nla_nest_start(msg, j + 1);
1082 goto nla_put_failure;
1083 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1085 goto nla_put_failure;
1086 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1087 c->limits[j].types))
1088 goto nla_put_failure;
1089 nla_nest_end(msg, nl_limit);
1092 nla_nest_end(msg, nl_limits);
1094 if (c->beacon_int_infra_match &&
1095 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1096 goto nla_put_failure;
1097 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1098 c->num_different_channels) ||
1099 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1101 goto nla_put_failure;
1103 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1104 c->radar_detect_widths) ||
1105 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1106 c->radar_detect_regions)))
1107 goto nla_put_failure;
1108 if (c->beacon_int_min_gcd &&
1109 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1110 c->beacon_int_min_gcd))
1111 goto nla_put_failure;
1113 nla_nest_end(msg, nl_combi);
1116 nla_nest_end(msg, nl_combis);
1124 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1125 struct sk_buff *msg)
1127 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1128 struct nlattr *nl_tcp;
1133 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1137 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1138 tcp->data_payload_max))
1141 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1142 tcp->data_payload_max))
1145 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1148 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1149 sizeof(*tcp->tok), tcp->tok))
1152 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1153 tcp->data_interval_max))
1156 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1157 tcp->wake_payload_max))
1160 nla_nest_end(msg, nl_tcp);
1164 static int nl80211_send_wowlan(struct sk_buff *msg,
1165 struct cfg80211_registered_device *rdev,
1168 struct nlattr *nl_wowlan;
1170 if (!rdev->wiphy.wowlan)
1173 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1177 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1178 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1179 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1180 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1181 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1182 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1183 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1184 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1185 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1186 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1187 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1188 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1189 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1190 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1191 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1192 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1195 if (rdev->wiphy.wowlan->n_patterns) {
1196 struct nl80211_pattern_support pat = {
1197 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1198 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1199 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1200 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1203 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1208 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1209 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1210 rdev->wiphy.wowlan->max_nd_match_sets))
1213 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1216 nla_nest_end(msg, nl_wowlan);
1222 static int nl80211_send_coalesce(struct sk_buff *msg,
1223 struct cfg80211_registered_device *rdev)
1225 struct nl80211_coalesce_rule_support rule;
1227 if (!rdev->wiphy.coalesce)
1230 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1231 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1232 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1233 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1234 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1235 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1237 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1243 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1244 struct ieee80211_supported_band *sband)
1246 struct nlattr *nl_rates, *nl_rate;
1247 struct ieee80211_rate *rate;
1251 if (sband->ht_cap.ht_supported &&
1252 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1253 sizeof(sband->ht_cap.mcs),
1254 &sband->ht_cap.mcs) ||
1255 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1256 sband->ht_cap.cap) ||
1257 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1258 sband->ht_cap.ampdu_factor) ||
1259 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1260 sband->ht_cap.ampdu_density)))
1264 if (sband->vht_cap.vht_supported &&
1265 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1266 sizeof(sband->vht_cap.vht_mcs),
1267 &sband->vht_cap.vht_mcs) ||
1268 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1269 sband->vht_cap.cap)))
1273 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1277 for (i = 0; i < sband->n_bitrates; i++) {
1278 nl_rate = nla_nest_start(msg, i);
1282 rate = &sband->bitrates[i];
1283 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1286 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1288 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1291 nla_nest_end(msg, nl_rate);
1294 nla_nest_end(msg, nl_rates);
1300 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1301 const struct ieee80211_txrx_stypes *mgmt_stypes)
1304 struct nlattr *nl_ftypes, *nl_ifs;
1305 enum nl80211_iftype ift;
1311 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1315 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1316 nl_ftypes = nla_nest_start(msg, ift);
1320 stypes = mgmt_stypes[ift].tx;
1323 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1324 (i << 4) | IEEE80211_FTYPE_MGMT))
1329 nla_nest_end(msg, nl_ftypes);
1332 nla_nest_end(msg, nl_ifs);
1334 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1338 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1339 nl_ftypes = nla_nest_start(msg, ift);
1343 stypes = mgmt_stypes[ift].rx;
1346 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1347 (i << 4) | IEEE80211_FTYPE_MGMT))
1352 nla_nest_end(msg, nl_ftypes);
1354 nla_nest_end(msg, nl_ifs);
1359 #define CMD(op, n) \
1361 if (rdev->ops->op) { \
1363 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1364 goto nla_put_failure; \
1368 static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1369 struct sk_buff *msg)
1374 * do *NOT* add anything into this function, new things need to be
1375 * advertised only to new versions of userspace that can deal with
1376 * the split (and they can't possibly care about new features...
1378 CMD(add_virtual_intf, NEW_INTERFACE);
1379 CMD(change_virtual_intf, SET_INTERFACE);
1380 CMD(add_key, NEW_KEY);
1381 CMD(start_ap, START_AP);
1382 CMD(add_station, NEW_STATION);
1383 CMD(add_mpath, NEW_MPATH);
1384 CMD(update_mesh_config, SET_MESH_CONFIG);
1385 CMD(change_bss, SET_BSS);
1386 CMD(auth, AUTHENTICATE);
1387 CMD(assoc, ASSOCIATE);
1388 CMD(deauth, DEAUTHENTICATE);
1389 CMD(disassoc, DISASSOCIATE);
1390 CMD(join_ibss, JOIN_IBSS);
1391 CMD(join_mesh, JOIN_MESH);
1392 CMD(set_pmksa, SET_PMKSA);
1393 CMD(del_pmksa, DEL_PMKSA);
1394 CMD(flush_pmksa, FLUSH_PMKSA);
1395 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1396 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1397 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1398 CMD(mgmt_tx, FRAME);
1399 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1400 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1402 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1403 goto nla_put_failure;
1405 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1406 rdev->ops->join_mesh) {
1408 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1409 goto nla_put_failure;
1411 CMD(set_wds_peer, SET_WDS_PEER);
1412 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1413 CMD(tdls_mgmt, TDLS_MGMT);
1414 CMD(tdls_oper, TDLS_OPER);
1416 if (rdev->wiphy.max_sched_scan_reqs)
1417 CMD(sched_scan_start, START_SCHED_SCAN);
1418 CMD(probe_client, PROBE_CLIENT);
1419 CMD(set_noack_map, SET_NOACK_MAP);
1420 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1422 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1423 goto nla_put_failure;
1425 CMD(start_p2p_device, START_P2P_DEVICE);
1426 CMD(set_mcast_rate, SET_MCAST_RATE);
1427 #ifdef CONFIG_NL80211_TESTMODE
1428 CMD(testmode_cmd, TESTMODE);
1431 if (rdev->ops->connect || rdev->ops->auth) {
1433 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1434 goto nla_put_failure;
1437 if (rdev->ops->disconnect || rdev->ops->deauth) {
1439 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1440 goto nla_put_failure;
1448 struct nl80211_dump_wiphy_state {
1451 long split_start, band_start, chan_start, capa_start;
1455 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1456 enum nl80211_commands cmd,
1457 struct sk_buff *msg, u32 portid, u32 seq,
1458 int flags, struct nl80211_dump_wiphy_state *state)
1461 struct nlattr *nl_bands, *nl_band;
1462 struct nlattr *nl_freqs, *nl_freq;
1463 struct nlattr *nl_cmds;
1464 enum nl80211_band band;
1465 struct ieee80211_channel *chan;
1467 const struct ieee80211_txrx_stypes *mgmt_stypes =
1468 rdev->wiphy.mgmt_stypes;
1471 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1475 if (WARN_ON(!state))
1478 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1479 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1480 wiphy_name(&rdev->wiphy)) ||
1481 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1482 cfg80211_rdev_list_generation))
1483 goto nla_put_failure;
1485 if (cmd != NL80211_CMD_NEW_WIPHY)
1488 switch (state->split_start) {
1490 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1491 rdev->wiphy.retry_short) ||
1492 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1493 rdev->wiphy.retry_long) ||
1494 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1495 rdev->wiphy.frag_threshold) ||
1496 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1497 rdev->wiphy.rts_threshold) ||
1498 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1499 rdev->wiphy.coverage_class) ||
1500 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1501 rdev->wiphy.max_scan_ssids) ||
1502 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1503 rdev->wiphy.max_sched_scan_ssids) ||
1504 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1505 rdev->wiphy.max_scan_ie_len) ||
1506 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1507 rdev->wiphy.max_sched_scan_ie_len) ||
1508 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1509 rdev->wiphy.max_match_sets) ||
1510 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1511 rdev->wiphy.max_sched_scan_plans) ||
1512 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1513 rdev->wiphy.max_sched_scan_plan_interval) ||
1514 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1515 rdev->wiphy.max_sched_scan_plan_iterations))
1516 goto nla_put_failure;
1518 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1519 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1520 goto nla_put_failure;
1521 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1522 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1523 goto nla_put_failure;
1524 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1525 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1526 goto nla_put_failure;
1527 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1528 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1529 goto nla_put_failure;
1530 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1531 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1532 goto nla_put_failure;
1533 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1534 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1535 goto nla_put_failure;
1536 state->split_start++;
1540 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1541 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1542 rdev->wiphy.cipher_suites))
1543 goto nla_put_failure;
1545 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1546 rdev->wiphy.max_num_pmkids))
1547 goto nla_put_failure;
1549 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1550 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1551 goto nla_put_failure;
1553 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1554 rdev->wiphy.available_antennas_tx) ||
1555 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1556 rdev->wiphy.available_antennas_rx))
1557 goto nla_put_failure;
1559 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1560 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1561 rdev->wiphy.probe_resp_offload))
1562 goto nla_put_failure;
1564 if ((rdev->wiphy.available_antennas_tx ||
1565 rdev->wiphy.available_antennas_rx) &&
1566 rdev->ops->get_antenna) {
1567 u32 tx_ant = 0, rx_ant = 0;
1570 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1572 if (nla_put_u32(msg,
1573 NL80211_ATTR_WIPHY_ANTENNA_TX,
1576 NL80211_ATTR_WIPHY_ANTENNA_RX,
1578 goto nla_put_failure;
1582 state->split_start++;
1586 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1587 rdev->wiphy.interface_modes))
1588 goto nla_put_failure;
1589 state->split_start++;
1593 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1595 goto nla_put_failure;
1597 for (band = state->band_start;
1598 band < NUM_NL80211_BANDS; band++) {
1599 struct ieee80211_supported_band *sband;
1601 sband = rdev->wiphy.bands[band];
1606 nl_band = nla_nest_start(msg, band);
1608 goto nla_put_failure;
1610 switch (state->chan_start) {
1612 if (nl80211_send_band_rateinfo(msg, sband))
1613 goto nla_put_failure;
1614 state->chan_start++;
1618 /* add frequencies */
1619 nl_freqs = nla_nest_start(
1620 msg, NL80211_BAND_ATTR_FREQS);
1622 goto nla_put_failure;
1624 for (i = state->chan_start - 1;
1625 i < sband->n_channels;
1627 nl_freq = nla_nest_start(msg, i);
1629 goto nla_put_failure;
1631 chan = &sband->channels[i];
1633 if (nl80211_msg_put_channel(
1636 goto nla_put_failure;
1638 nla_nest_end(msg, nl_freq);
1642 if (i < sband->n_channels)
1643 state->chan_start = i + 2;
1645 state->chan_start = 0;
1646 nla_nest_end(msg, nl_freqs);
1649 nla_nest_end(msg, nl_band);
1652 /* start again here */
1653 if (state->chan_start)
1658 nla_nest_end(msg, nl_bands);
1660 if (band < NUM_NL80211_BANDS)
1661 state->band_start = band + 1;
1663 state->band_start = 0;
1665 /* if bands & channels are done, continue outside */
1666 if (state->band_start == 0 && state->chan_start == 0)
1667 state->split_start++;
1671 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1673 goto nla_put_failure;
1675 i = nl80211_add_commands_unsplit(rdev, msg);
1677 goto nla_put_failure;
1679 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1680 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1681 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1682 CMD(channel_switch, CHANNEL_SWITCH);
1683 CMD(set_qos_map, SET_QOS_MAP);
1684 if (rdev->wiphy.features &
1685 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1686 CMD(add_tx_ts, ADD_TX_TS);
1687 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
1688 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
1692 nla_nest_end(msg, nl_cmds);
1693 state->split_start++;
1697 if (rdev->ops->remain_on_channel &&
1698 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1700 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1701 rdev->wiphy.max_remain_on_channel_duration))
1702 goto nla_put_failure;
1704 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1705 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1706 goto nla_put_failure;
1708 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1709 goto nla_put_failure;
1710 state->split_start++;
1715 if (nl80211_send_wowlan(msg, rdev, state->split))
1716 goto nla_put_failure;
1717 state->split_start++;
1721 state->split_start++;
1724 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1725 rdev->wiphy.software_iftypes))
1726 goto nla_put_failure;
1728 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1730 goto nla_put_failure;
1732 state->split_start++;
1736 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1737 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1738 rdev->wiphy.ap_sme_capa))
1739 goto nla_put_failure;
1741 features = rdev->wiphy.features;
1743 * We can only add the per-channel limit information if the
1744 * dump is split, otherwise it makes it too big. Therefore
1745 * only advertise it in that case.
1748 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1749 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1750 goto nla_put_failure;
1752 if (rdev->wiphy.ht_capa_mod_mask &&
1753 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1754 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1755 rdev->wiphy.ht_capa_mod_mask))
1756 goto nla_put_failure;
1758 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1759 rdev->wiphy.max_acl_mac_addrs &&
1760 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1761 rdev->wiphy.max_acl_mac_addrs))
1762 goto nla_put_failure;
1765 * Any information below this point is only available to
1766 * applications that can deal with it being split. This
1767 * helps ensure that newly added capabilities don't break
1768 * older tools by overrunning their buffers.
1770 * We still increment split_start so that in the split
1771 * case we'll continue with more data in the next round,
1772 * but break unconditionally so unsplit data stops here.
1774 state->split_start++;
1777 if (rdev->wiphy.extended_capabilities &&
1778 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1779 rdev->wiphy.extended_capabilities_len,
1780 rdev->wiphy.extended_capabilities) ||
1781 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1782 rdev->wiphy.extended_capabilities_len,
1783 rdev->wiphy.extended_capabilities_mask)))
1784 goto nla_put_failure;
1786 if (rdev->wiphy.vht_capa_mod_mask &&
1787 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1788 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1789 rdev->wiphy.vht_capa_mod_mask))
1790 goto nla_put_failure;
1792 state->split_start++;
1795 if (nl80211_send_coalesce(msg, rdev))
1796 goto nla_put_failure;
1798 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1799 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1800 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1801 goto nla_put_failure;
1803 if (rdev->wiphy.max_ap_assoc_sta &&
1804 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1805 rdev->wiphy.max_ap_assoc_sta))
1806 goto nla_put_failure;
1808 state->split_start++;
1811 if (rdev->wiphy.n_vendor_commands) {
1812 const struct nl80211_vendor_cmd_info *info;
1813 struct nlattr *nested;
1815 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1817 goto nla_put_failure;
1819 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1820 info = &rdev->wiphy.vendor_commands[i].info;
1821 if (nla_put(msg, i + 1, sizeof(*info), info))
1822 goto nla_put_failure;
1824 nla_nest_end(msg, nested);
1827 if (rdev->wiphy.n_vendor_events) {
1828 const struct nl80211_vendor_cmd_info *info;
1829 struct nlattr *nested;
1831 nested = nla_nest_start(msg,
1832 NL80211_ATTR_VENDOR_EVENTS);
1834 goto nla_put_failure;
1836 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1837 info = &rdev->wiphy.vendor_events[i];
1838 if (nla_put(msg, i + 1, sizeof(*info), info))
1839 goto nla_put_failure;
1841 nla_nest_end(msg, nested);
1843 state->split_start++;
1846 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1847 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1848 rdev->wiphy.max_num_csa_counters))
1849 goto nla_put_failure;
1851 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1852 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1853 goto nla_put_failure;
1855 if (rdev->wiphy.max_sched_scan_reqs &&
1856 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
1857 rdev->wiphy.max_sched_scan_reqs))
1858 goto nla_put_failure;
1860 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1861 sizeof(rdev->wiphy.ext_features),
1862 rdev->wiphy.ext_features))
1863 goto nla_put_failure;
1865 if (rdev->wiphy.bss_select_support) {
1866 struct nlattr *nested;
1867 u32 bss_select_support = rdev->wiphy.bss_select_support;
1869 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1871 goto nla_put_failure;
1874 while (bss_select_support) {
1875 if ((bss_select_support & 1) &&
1876 nla_put_flag(msg, i))
1877 goto nla_put_failure;
1879 bss_select_support >>= 1;
1881 nla_nest_end(msg, nested);
1884 state->split_start++;
1887 if (rdev->wiphy.num_iftype_ext_capab &&
1888 rdev->wiphy.iftype_ext_capab) {
1889 struct nlattr *nested_ext_capab, *nested;
1891 nested = nla_nest_start(msg,
1892 NL80211_ATTR_IFTYPE_EXT_CAPA);
1894 goto nla_put_failure;
1896 for (i = state->capa_start;
1897 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1898 const struct wiphy_iftype_ext_capab *capab;
1900 capab = &rdev->wiphy.iftype_ext_capab[i];
1902 nested_ext_capab = nla_nest_start(msg, i);
1903 if (!nested_ext_capab ||
1904 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1906 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1907 capab->extended_capabilities_len,
1908 capab->extended_capabilities) ||
1909 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1910 capab->extended_capabilities_len,
1911 capab->extended_capabilities_mask))
1912 goto nla_put_failure;
1914 nla_nest_end(msg, nested_ext_capab);
1918 nla_nest_end(msg, nested);
1919 if (i < rdev->wiphy.num_iftype_ext_capab) {
1920 state->capa_start = i + 1;
1925 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
1926 rdev->wiphy.nan_supported_bands))
1927 goto nla_put_failure;
1930 state->split_start = 0;
1934 genlmsg_end(msg, hdr);
1938 genlmsg_cancel(msg, hdr);
1942 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1943 struct netlink_callback *cb,
1944 struct nl80211_dump_wiphy_state *state)
1946 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
1947 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
1948 nl80211_fam.maxattr, nl80211_policy, NULL);
1949 /* ignore parse errors for backward compatibility */
1953 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1954 if (tb[NL80211_ATTR_WIPHY])
1955 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1956 if (tb[NL80211_ATTR_WDEV])
1957 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1958 if (tb[NL80211_ATTR_IFINDEX]) {
1959 struct net_device *netdev;
1960 struct cfg80211_registered_device *rdev;
1961 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1963 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1966 if (netdev->ieee80211_ptr) {
1967 rdev = wiphy_to_rdev(
1968 netdev->ieee80211_ptr->wiphy);
1969 state->filter_wiphy = rdev->wiphy_idx;
1976 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1979 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1980 struct cfg80211_registered_device *rdev;
1984 state = kzalloc(sizeof(*state), GFP_KERNEL);
1989 state->filter_wiphy = -1;
1990 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1996 cb->args[0] = (long)state;
1999 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2000 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2002 if (++idx <= state->start)
2004 if (state->filter_wiphy != -1 &&
2005 state->filter_wiphy != rdev->wiphy_idx)
2007 /* attempt to fit multiple wiphy data chunks into the skb */
2009 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
2011 NETLINK_CB(cb->skb).portid,
2013 NLM_F_MULTI, state);
2016 * If sending the wiphy data didn't fit (ENOBUFS
2017 * or EMSGSIZE returned), this SKB is still
2018 * empty (so it's not too big because another
2019 * wiphy dataset is already in the skb) and
2020 * we've not tried to adjust the dump allocation
2021 * yet ... then adjust the alloc size to be
2022 * bigger, and return 1 but with the empty skb.
2023 * This results in an empty message being RX'ed
2024 * in userspace, but that is ignored.
2026 * We can then retry with the larger buffer.
2028 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
2029 !skb->len && !state->split &&
2030 cb->min_dump_alloc < 4096) {
2031 cb->min_dump_alloc = 4096;
2032 state->split_start = 0;
2039 } while (state->split_start > 0);
2049 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2051 kfree((void *)cb->args[0]);
2055 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2057 struct sk_buff *msg;
2058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2059 struct nl80211_dump_wiphy_state state = {};
2061 msg = nlmsg_new(4096, GFP_KERNEL);
2065 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2066 info->snd_portid, info->snd_seq, 0,
2072 return genlmsg_reply(msg, info);
2075 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2076 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2077 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2078 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2079 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2080 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2083 static int parse_txq_params(struct nlattr *tb[],
2084 struct ieee80211_txq_params *txq_params)
2088 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
2089 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2090 !tb[NL80211_TXQ_ATTR_AIFS])
2093 ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
2094 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2095 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2096 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2097 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2099 if (ac >= NL80211_NUM_ACS)
2101 txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS);
2105 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2108 * You can only set the channel explicitly for WDS interfaces,
2109 * all others have their channel managed via their respective
2110 * "establish a connection" command (connect, join, ...)
2112 * For AP/GO and mesh mode, the channel can be set with the
2113 * channel userspace API, but is only stored and passed to the
2114 * low-level driver when the AP starts or the mesh is joined.
2115 * This is for backward compatibility, userspace can also give
2116 * the channel in the start-ap or join-mesh commands instead.
2118 * Monitors are special as they are normally slaved to
2119 * whatever else is going on, so they have their own special
2120 * operation to set the monitor channel if possible.
2123 wdev->iftype == NL80211_IFTYPE_AP ||
2124 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
2125 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2126 wdev->iftype == NL80211_IFTYPE_P2P_GO;
2129 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2130 struct genl_info *info,
2131 struct cfg80211_chan_def *chandef)
2135 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2138 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2140 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
2141 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2142 chandef->center_freq1 = control_freq;
2143 chandef->center_freq2 = 0;
2145 /* Primary channel not allowed */
2146 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2149 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2150 enum nl80211_channel_type chantype;
2152 chantype = nla_get_u32(
2153 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2156 case NL80211_CHAN_NO_HT:
2157 case NL80211_CHAN_HT20:
2158 case NL80211_CHAN_HT40PLUS:
2159 case NL80211_CHAN_HT40MINUS:
2160 cfg80211_chandef_create(chandef, chandef->chan,
2162 /* user input for center_freq is incorrect */
2163 if (info->attrs[NL80211_ATTR_CENTER_FREQ1] &&
2164 chandef->center_freq1 != nla_get_u32(
2165 info->attrs[NL80211_ATTR_CENTER_FREQ1]))
2167 /* center_freq2 must be zero */
2168 if (info->attrs[NL80211_ATTR_CENTER_FREQ2] &&
2169 nla_get_u32(info->attrs[NL80211_ATTR_CENTER_FREQ2]))
2175 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2177 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2178 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2179 chandef->center_freq1 =
2181 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2182 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2183 chandef->center_freq2 =
2185 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2188 if (!cfg80211_chandef_valid(chandef))
2191 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2192 IEEE80211_CHAN_DISABLED))
2195 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2196 chandef->width == NL80211_CHAN_WIDTH_10) &&
2197 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2203 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2204 struct net_device *dev,
2205 struct genl_info *info)
2207 struct cfg80211_chan_def chandef;
2209 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2210 struct wireless_dev *wdev = NULL;
2213 wdev = dev->ieee80211_ptr;
2214 if (!nl80211_can_set_dev_channel(wdev))
2217 iftype = wdev->iftype;
2219 result = nl80211_parse_chandef(rdev, info, &chandef);
2224 case NL80211_IFTYPE_AP:
2225 case NL80211_IFTYPE_P2P_GO:
2226 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2231 if (wdev->beacon_interval) {
2232 if (!dev || !rdev->ops->set_ap_chanwidth ||
2233 !(rdev->wiphy.features &
2234 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2239 /* Only allow dynamic channel width changes */
2240 if (chandef.chan != wdev->preset_chandef.chan) {
2244 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2248 wdev->preset_chandef = chandef;
2251 case NL80211_IFTYPE_MESH_POINT:
2252 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2254 case NL80211_IFTYPE_MONITOR:
2255 result = cfg80211_set_monitor_channel(rdev, &chandef);
2264 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2266 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2267 struct net_device *netdev = info->user_ptr[1];
2269 return __nl80211_set_channel(rdev, netdev, info);
2272 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2275 struct net_device *dev = info->user_ptr[1];
2276 struct wireless_dev *wdev = dev->ieee80211_ptr;
2279 if (!info->attrs[NL80211_ATTR_MAC])
2282 if (netif_running(dev))
2285 if (!rdev->ops->set_wds_peer)
2288 if (wdev->iftype != NL80211_IFTYPE_WDS)
2291 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2292 return rdev_set_wds_peer(rdev, dev, bssid);
2295 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2297 struct cfg80211_registered_device *rdev;
2298 struct net_device *netdev = NULL;
2299 struct wireless_dev *wdev;
2300 int result = 0, rem_txq_params = 0;
2301 struct nlattr *nl_txq_params;
2303 u8 retry_short = 0, retry_long = 0;
2304 u32 frag_threshold = 0, rts_threshold = 0;
2305 u8 coverage_class = 0;
2310 * Try to find the wiphy and netdev. Normally this
2311 * function shouldn't need the netdev, but this is
2312 * done for backward compatibility -- previously
2313 * setting the channel was done per wiphy, but now
2314 * it is per netdev. Previous userland like hostapd
2315 * also passed a netdev to set_wiphy, so that it is
2316 * possible to let that go to the right netdev!
2319 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2320 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2322 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2323 if (netdev && netdev->ieee80211_ptr)
2324 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2330 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2333 return PTR_ERR(rdev);
2338 wdev = netdev->ieee80211_ptr;
2341 * end workaround code, by now the rdev is available
2342 * and locked, and wdev may or may not be NULL.
2345 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2346 result = cfg80211_dev_rename(
2347 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2352 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2353 struct ieee80211_txq_params txq_params;
2354 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2356 if (!rdev->ops->set_txq_params)
2362 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2363 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2366 if (!netif_running(netdev))
2369 nla_for_each_nested(nl_txq_params,
2370 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2372 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2378 result = parse_txq_params(tb, &txq_params);
2382 result = rdev_set_txq_params(rdev, netdev,
2389 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2390 result = __nl80211_set_channel(
2392 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2398 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2399 struct wireless_dev *txp_wdev = wdev;
2400 enum nl80211_tx_power_setting type;
2403 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2406 if (!rdev->ops->set_tx_power)
2409 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2410 type = nla_get_u32(info->attrs[idx]);
2412 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2413 (type != NL80211_TX_POWER_AUTOMATIC))
2416 if (type != NL80211_TX_POWER_AUTOMATIC) {
2417 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2418 mbm = nla_get_u32(info->attrs[idx]);
2421 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2426 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2427 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2430 if ((!rdev->wiphy.available_antennas_tx &&
2431 !rdev->wiphy.available_antennas_rx) ||
2432 !rdev->ops->set_antenna)
2435 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2436 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2438 /* reject antenna configurations which don't match the
2439 * available antenna masks, except for the "all" mask */
2440 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2441 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2444 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2445 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2447 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2454 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2455 retry_short = nla_get_u8(
2456 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2457 if (retry_short == 0)
2460 changed |= WIPHY_PARAM_RETRY_SHORT;
2463 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2464 retry_long = nla_get_u8(
2465 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2466 if (retry_long == 0)
2469 changed |= WIPHY_PARAM_RETRY_LONG;
2472 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2473 frag_threshold = nla_get_u32(
2474 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2475 if (frag_threshold < 256)
2478 if (frag_threshold != (u32) -1) {
2480 * Fragments (apart from the last one) are required to
2481 * have even length. Make the fragmentation code
2482 * simpler by stripping LSB should someone try to use
2483 * odd threshold value.
2485 frag_threshold &= ~0x1;
2487 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2490 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2491 rts_threshold = nla_get_u32(
2492 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2493 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2496 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2497 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2500 coverage_class = nla_get_u8(
2501 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2502 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2505 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2506 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2509 changed |= WIPHY_PARAM_DYN_ACK;
2513 u8 old_retry_short, old_retry_long;
2514 u32 old_frag_threshold, old_rts_threshold;
2515 u8 old_coverage_class;
2517 if (!rdev->ops->set_wiphy_params)
2520 old_retry_short = rdev->wiphy.retry_short;
2521 old_retry_long = rdev->wiphy.retry_long;
2522 old_frag_threshold = rdev->wiphy.frag_threshold;
2523 old_rts_threshold = rdev->wiphy.rts_threshold;
2524 old_coverage_class = rdev->wiphy.coverage_class;
2526 if (changed & WIPHY_PARAM_RETRY_SHORT)
2527 rdev->wiphy.retry_short = retry_short;
2528 if (changed & WIPHY_PARAM_RETRY_LONG)
2529 rdev->wiphy.retry_long = retry_long;
2530 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2531 rdev->wiphy.frag_threshold = frag_threshold;
2532 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2533 rdev->wiphy.rts_threshold = rts_threshold;
2534 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2535 rdev->wiphy.coverage_class = coverage_class;
2537 result = rdev_set_wiphy_params(rdev, changed);
2539 rdev->wiphy.retry_short = old_retry_short;
2540 rdev->wiphy.retry_long = old_retry_long;
2541 rdev->wiphy.frag_threshold = old_frag_threshold;
2542 rdev->wiphy.rts_threshold = old_rts_threshold;
2543 rdev->wiphy.coverage_class = old_coverage_class;
2550 static inline u64 wdev_id(struct wireless_dev *wdev)
2552 return (u64)wdev->identifier |
2553 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2556 static int nl80211_send_chandef(struct sk_buff *msg,
2557 const struct cfg80211_chan_def *chandef)
2559 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2562 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2563 chandef->chan->center_freq))
2565 switch (chandef->width) {
2566 case NL80211_CHAN_WIDTH_20_NOHT:
2567 case NL80211_CHAN_WIDTH_20:
2568 case NL80211_CHAN_WIDTH_40:
2569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2570 cfg80211_get_chandef_type(chandef)))
2576 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2578 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2580 if (chandef->center_freq2 &&
2581 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2586 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2587 struct cfg80211_registered_device *rdev,
2588 struct wireless_dev *wdev, bool removal)
2590 struct net_device *dev = wdev->netdev;
2591 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2595 cmd = NL80211_CMD_DEL_INTERFACE;
2597 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2602 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2603 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2604 goto nla_put_failure;
2606 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2607 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2608 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2609 NL80211_ATTR_PAD) ||
2610 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2611 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2612 rdev->devlist_generation ^
2613 (cfg80211_rdev_list_generation << 2)))
2614 goto nla_put_failure;
2616 if (rdev->ops->get_channel) {
2618 struct cfg80211_chan_def chandef;
2620 ret = rdev_get_channel(rdev, wdev, &chandef);
2622 if (nl80211_send_chandef(msg, &chandef))
2623 goto nla_put_failure;
2627 if (rdev->ops->get_tx_power) {
2630 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2632 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2634 goto nla_put_failure;
2638 switch (wdev->iftype) {
2639 case NL80211_IFTYPE_AP:
2640 if (wdev->ssid_len &&
2641 nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2642 goto nla_put_failure_locked;
2644 case NL80211_IFTYPE_STATION:
2645 case NL80211_IFTYPE_P2P_CLIENT:
2646 case NL80211_IFTYPE_ADHOC: {
2648 if (!wdev->current_bss)
2651 ssid_ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
2654 nla_put(msg, NL80211_ATTR_SSID, ssid_ie[1], ssid_ie + 2))
2655 goto nla_put_failure_rcu_locked;
2665 genlmsg_end(msg, hdr);
2668 nla_put_failure_rcu_locked:
2670 nla_put_failure_locked:
2673 genlmsg_cancel(msg, hdr);
2677 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2681 int wp_start = cb->args[0];
2682 int if_start = cb->args[1];
2683 int filter_wiphy = -1;
2684 struct cfg80211_registered_device *rdev;
2685 struct wireless_dev *wdev;
2690 struct nl80211_dump_wiphy_state state = {
2694 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2698 filter_wiphy = state.filter_wiphy;
2701 * if filtering, set cb->args[2] to +1 since 0 is the default
2702 * value needed to determine that parsing is necessary.
2704 if (filter_wiphy >= 0)
2705 cb->args[2] = filter_wiphy + 1;
2708 } else if (cb->args[2] > 0) {
2709 filter_wiphy = cb->args[2] - 1;
2712 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2713 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2715 if (wp_idx < wp_start) {
2720 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2725 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
2726 if (if_idx < if_start) {
2730 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2731 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2732 rdev, wdev, false) < 0) {
2741 cb->args[0] = wp_idx;
2742 cb->args[1] = if_idx;
2751 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2753 struct sk_buff *msg;
2754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2755 struct wireless_dev *wdev = info->user_ptr[1];
2757 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2761 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2762 rdev, wdev, false) < 0) {
2767 return genlmsg_reply(msg, info);
2770 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2771 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2772 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2773 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2774 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2775 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2776 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2779 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2781 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2789 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
2790 mntr_flags_policy, NULL))
2793 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2795 *mntrflags |= (1<<flag);
2797 *mntrflags |= MONITOR_FLAG_CHANGED;
2802 static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
2803 enum nl80211_iftype type,
2804 struct genl_info *info,
2805 struct vif_params *params)
2807 bool change = false;
2810 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2811 if (type != NL80211_IFTYPE_MONITOR)
2814 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2822 if (params->flags & MONITOR_FLAG_ACTIVE &&
2823 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2826 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2827 const u8 *mumimo_groups;
2828 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2830 if (type != NL80211_IFTYPE_MONITOR)
2833 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2837 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2839 /* bits 0 and 63 are reserved and must be zero */
2840 if ((mumimo_groups[0] & BIT(0)) ||
2841 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
2844 params->vht_mumimo_groups = mumimo_groups;
2848 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2849 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2851 if (type != NL80211_IFTYPE_MONITOR)
2854 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2857 params->vht_mumimo_follow_addr =
2858 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
2862 return change ? 1 : 0;
2865 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2866 struct net_device *netdev, u8 use_4addr,
2867 enum nl80211_iftype iftype)
2870 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2876 case NL80211_IFTYPE_AP_VLAN:
2877 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2880 case NL80211_IFTYPE_STATION:
2881 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2891 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2894 struct vif_params params;
2896 enum nl80211_iftype otype, ntype;
2897 struct net_device *dev = info->user_ptr[1];
2898 bool change = false;
2900 memset(¶ms, 0, sizeof(params));
2902 otype = ntype = dev->ieee80211_ptr->iftype;
2904 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2905 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2908 if (ntype > NL80211_IFTYPE_MAX)
2912 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2913 struct wireless_dev *wdev = dev->ieee80211_ptr;
2915 if (ntype != NL80211_IFTYPE_MESH_POINT)
2917 if (netif_running(dev))
2921 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2922 IEEE80211_MAX_MESH_ID_LEN);
2923 wdev->mesh_id_up_len =
2924 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2925 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2926 wdev->mesh_id_up_len);
2930 if (info->attrs[NL80211_ATTR_4ADDR]) {
2931 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2933 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2937 params.use_4addr = -1;
2940 err = nl80211_parse_mon_options(rdev, ntype, info, ¶ms);
2947 err = cfg80211_change_iface(rdev, dev, ntype, ¶ms);
2951 if (!err && params.use_4addr != -1)
2952 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2957 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2960 struct vif_params params;
2961 struct wireless_dev *wdev;
2962 struct sk_buff *msg;
2964 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2966 /* to avoid failing a new interface creation due to pending removal */
2967 cfg80211_destroy_ifaces(rdev);
2969 memset(¶ms, 0, sizeof(params));
2971 if (!info->attrs[NL80211_ATTR_IFNAME])
2974 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2975 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2976 if (type > NL80211_IFTYPE_MAX)
2980 if (!rdev->ops->add_virtual_intf ||
2981 !(rdev->wiphy.interface_modes & (1 << type)))
2984 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
2985 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2986 info->attrs[NL80211_ATTR_MAC]) {
2987 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2989 if (!is_valid_ether_addr(params.macaddr))
2990 return -EADDRNOTAVAIL;
2993 if (info->attrs[NL80211_ATTR_4ADDR]) {
2994 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2995 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
3000 err = nl80211_parse_mon_options(rdev, type, info, ¶ms);
3004 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3008 wdev = rdev_add_virtual_intf(rdev,
3009 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
3010 NET_NAME_USER, type, ¶ms);
3011 if (WARN_ON(!wdev)) {
3014 } else if (IS_ERR(wdev)) {
3016 return PTR_ERR(wdev);
3019 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
3020 wdev->owner_nlportid = info->snd_portid;
3023 case NL80211_IFTYPE_MESH_POINT:
3024 if (!info->attrs[NL80211_ATTR_MESH_ID])
3027 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
3028 IEEE80211_MAX_MESH_ID_LEN);
3029 wdev->mesh_id_up_len =
3030 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
3031 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
3032 wdev->mesh_id_up_len);
3035 case NL80211_IFTYPE_NAN:
3036 case NL80211_IFTYPE_P2P_DEVICE:
3038 * P2P Device and NAN do not have a netdev, so don't go
3039 * through the netdev notifier and must be added here
3041 mutex_init(&wdev->mtx);
3042 INIT_LIST_HEAD(&wdev->event_list);
3043 spin_lock_init(&wdev->event_lock);
3044 INIT_LIST_HEAD(&wdev->mgmt_registrations);
3045 spin_lock_init(&wdev->mgmt_registrations_lock);
3047 wdev->identifier = ++rdev->wdev_id;
3048 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
3049 rdev->devlist_generation++;
3055 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
3056 rdev, wdev, false) < 0) {
3062 * For wdevs which have no associated netdev object (e.g. of type
3063 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
3064 * For all other types, the event will be generated from the
3068 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
3070 return genlmsg_reply(msg, info);
3073 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
3075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3076 struct wireless_dev *wdev = info->user_ptr[1];
3078 if (!rdev->ops->del_virtual_intf)
3082 * If we remove a wireless device without a netdev then clear
3083 * user_ptr[1] so that nl80211_post_doit won't dereference it
3084 * to check if it needs to do dev_put(). Otherwise it crashes
3085 * since the wdev has been freed, unlike with a netdev where
3086 * we need the dev_put() for the netdev to really be freed.
3089 info->user_ptr[1] = NULL;
3091 return rdev_del_virtual_intf(rdev, wdev);
3094 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3097 struct net_device *dev = info->user_ptr[1];
3100 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3103 if (!rdev->ops->set_noack_map)
3106 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3108 return rdev_set_noack_map(rdev, dev, noack_map);
3111 struct get_key_cookie {
3112 struct sk_buff *msg;
3117 static void get_key_callback(void *c, struct key_params *params)
3120 struct get_key_cookie *cookie = c;
3123 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3124 params->key_len, params->key)) ||
3126 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3127 params->seq_len, params->seq)) ||
3129 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3131 goto nla_put_failure;
3133 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3135 goto nla_put_failure;
3138 nla_put(cookie->msg, NL80211_KEY_DATA,
3139 params->key_len, params->key)) ||
3141 nla_put(cookie->msg, NL80211_KEY_SEQ,
3142 params->seq_len, params->seq)) ||
3144 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3146 goto nla_put_failure;
3148 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3149 goto nla_put_failure;
3151 nla_nest_end(cookie->msg, key);
3158 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3160 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3162 struct net_device *dev = info->user_ptr[1];
3164 const u8 *mac_addr = NULL;
3166 struct get_key_cookie cookie = {
3170 struct sk_buff *msg;
3172 if (info->attrs[NL80211_ATTR_KEY_IDX])
3173 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3178 if (info->attrs[NL80211_ATTR_MAC])
3179 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3181 pairwise = !!mac_addr;
3182 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3183 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
3185 if (kt >= NUM_NL80211_KEYTYPES)
3187 if (kt != NL80211_KEYTYPE_GROUP &&
3188 kt != NL80211_KEYTYPE_PAIRWISE)
3190 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3193 if (!rdev->ops->get_key)
3196 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3199 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3203 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3204 NL80211_CMD_NEW_KEY);
3206 goto nla_put_failure;
3209 cookie.idx = key_idx;
3211 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3212 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3213 goto nla_put_failure;
3215 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3216 goto nla_put_failure;
3218 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3225 goto nla_put_failure;
3227 genlmsg_end(msg, hdr);
3228 return genlmsg_reply(msg, info);
3237 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3239 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3240 struct key_parse key;
3242 struct net_device *dev = info->user_ptr[1];
3244 err = nl80211_parse_key(info, &key);
3251 /* only support setting default key */
3252 if (!key.def && !key.defmgmt)
3255 wdev_lock(dev->ieee80211_ptr);
3258 if (!rdev->ops->set_default_key) {
3263 err = nl80211_key_allowed(dev->ieee80211_ptr);
3267 err = rdev_set_default_key(rdev, dev, key.idx,
3268 key.def_uni, key.def_multi);
3273 #ifdef CONFIG_CFG80211_WEXT
3274 dev->ieee80211_ptr->wext.default_key = key.idx;
3277 if (key.def_uni || !key.def_multi) {
3282 if (!rdev->ops->set_default_mgmt_key) {
3287 err = nl80211_key_allowed(dev->ieee80211_ptr);
3291 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3295 #ifdef CONFIG_CFG80211_WEXT
3296 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3301 wdev_unlock(dev->ieee80211_ptr);
3306 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3310 struct net_device *dev = info->user_ptr[1];
3311 struct key_parse key;
3312 const u8 *mac_addr = NULL;
3314 err = nl80211_parse_key(info, &key);
3321 if (info->attrs[NL80211_ATTR_MAC])
3322 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3324 if (key.type == -1) {
3326 key.type = NL80211_KEYTYPE_PAIRWISE;
3328 key.type = NL80211_KEYTYPE_GROUP;
3332 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3333 key.type != NL80211_KEYTYPE_GROUP)
3336 if (!rdev->ops->add_key)
3339 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3340 key.type == NL80211_KEYTYPE_PAIRWISE,
3344 wdev_lock(dev->ieee80211_ptr);
3345 err = nl80211_key_allowed(dev->ieee80211_ptr);
3347 err = rdev_add_key(rdev, dev, key.idx,
3348 key.type == NL80211_KEYTYPE_PAIRWISE,
3350 wdev_unlock(dev->ieee80211_ptr);
3355 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3359 struct net_device *dev = info->user_ptr[1];
3360 u8 *mac_addr = NULL;
3361 struct key_parse key;
3363 err = nl80211_parse_key(info, &key);
3367 if (info->attrs[NL80211_ATTR_MAC])
3368 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3370 if (key.type == -1) {
3372 key.type = NL80211_KEYTYPE_PAIRWISE;
3374 key.type = NL80211_KEYTYPE_GROUP;
3378 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3379 key.type != NL80211_KEYTYPE_GROUP)
3382 if (!rdev->ops->del_key)
3385 wdev_lock(dev->ieee80211_ptr);
3386 err = nl80211_key_allowed(dev->ieee80211_ptr);
3388 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3389 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3393 err = rdev_del_key(rdev, dev, key.idx,
3394 key.type == NL80211_KEYTYPE_PAIRWISE,
3397 #ifdef CONFIG_CFG80211_WEXT
3399 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3400 dev->ieee80211_ptr->wext.default_key = -1;
3401 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3402 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3405 wdev_unlock(dev->ieee80211_ptr);
3410 /* This function returns an error or the number of nested attributes */
3411 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3413 struct nlattr *attr;
3414 int n_entries = 0, tmp;
3416 nla_for_each_nested(attr, nl_attr, tmp) {
3417 if (nla_len(attr) != ETH_ALEN)
3427 * This function parses ACL information and allocates memory for ACL data.
3428 * On successful return, the calling function is responsible to free the
3429 * ACL buffer returned by this function.
3431 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3432 struct genl_info *info)
3434 enum nl80211_acl_policy acl_policy;
3435 struct nlattr *attr;
3436 struct cfg80211_acl_data *acl;
3437 int i = 0, n_entries, tmp;
3439 if (!wiphy->max_acl_mac_addrs)
3440 return ERR_PTR(-EOPNOTSUPP);
3442 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3443 return ERR_PTR(-EINVAL);
3445 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3446 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3447 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3448 return ERR_PTR(-EINVAL);
3450 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3451 return ERR_PTR(-EINVAL);
3453 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3455 return ERR_PTR(n_entries);
3457 if (n_entries > wiphy->max_acl_mac_addrs)
3458 return ERR_PTR(-ENOTSUPP);
3460 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3463 return ERR_PTR(-ENOMEM);
3465 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3466 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3470 acl->n_acl_entries = n_entries;
3471 acl->acl_policy = acl_policy;
3476 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3479 struct net_device *dev = info->user_ptr[1];
3480 struct cfg80211_acl_data *acl;
3483 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3484 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3487 if (!dev->ieee80211_ptr->beacon_interval)
3490 acl = parse_acl_data(&rdev->wiphy, info);
3492 return PTR_ERR(acl);
3494 err = rdev_set_mac_acl(rdev, dev, acl);
3501 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3502 u8 *rates, u8 rates_len)
3507 for (i = 0; i < rates_len; i++) {
3508 int rate = (rates[i] & 0x7f) * 5;
3511 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3512 struct ieee80211_rate *srate =
3513 &sband->bitrates[ridx];
3514 if (rate == srate->bitrate) {
3519 if (ridx == sband->n_bitrates)
3520 return 0; /* rate not found */
3526 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3527 u8 *rates, u8 rates_len,
3528 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3532 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3534 for (i = 0; i < rates_len; i++) {
3537 ridx = rates[i] / 8;
3538 rbit = BIT(rates[i] % 8);
3540 /* check validity */
3541 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3544 /* check availability */
3545 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3554 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3558 switch (vht_mcs_map) {
3559 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3561 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3564 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3567 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3577 static void vht_build_mcs_mask(u16 vht_mcs_map,
3578 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3582 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3583 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3588 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3589 struct nl80211_txrate_vht *txrate,
3590 u16 mcs[NL80211_VHT_NSS_MAX])
3592 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3593 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3596 if (!sband->vht_cap.vht_supported)
3599 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3601 /* Build vht_mcs_mask from VHT capabilities */
3602 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3604 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3605 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3606 mcs[i] = txrate->mcs[i];
3614 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3615 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3616 .len = NL80211_MAX_SUPP_RATES },
3617 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3618 .len = NL80211_MAX_SUPP_HT_RATES },
3619 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3620 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3623 static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3624 struct cfg80211_bitrate_mask *mask)
3626 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3627 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3629 struct nlattr *tx_rates;
3630 struct ieee80211_supported_band *sband;
3633 memset(mask, 0, sizeof(*mask));
3634 /* Default to all rates enabled */
3635 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3636 sband = rdev->wiphy.bands[i];
3641 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3642 memcpy(mask->control[i].ht_mcs,
3643 sband->ht_cap.mcs.rx_mask,
3644 sizeof(mask->control[i].ht_mcs));
3646 if (!sband->vht_cap.vht_supported)
3649 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3650 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3653 /* if no rates are given set it back to the defaults */
3654 if (!info->attrs[NL80211_ATTR_TX_RATES])
3657 /* The nested attribute uses enum nl80211_band as the index. This maps
3658 * directly to the enum nl80211_band values used in cfg80211.
3660 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3661 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3662 enum nl80211_band band = nla_type(tx_rates);
3665 if (band < 0 || band >= NUM_NL80211_BANDS)
3667 sband = rdev->wiphy.bands[band];
3670 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
3671 nl80211_txattr_policy, info->extack);
3674 if (tb[NL80211_TXRATE_LEGACY]) {
3675 mask->control[band].legacy = rateset_to_mask(
3677 nla_data(tb[NL80211_TXRATE_LEGACY]),
3678 nla_len(tb[NL80211_TXRATE_LEGACY]));
3679 if ((mask->control[band].legacy == 0) &&
3680 nla_len(tb[NL80211_TXRATE_LEGACY]))
3683 if (tb[NL80211_TXRATE_HT]) {
3684 if (!ht_rateset_to_mask(
3686 nla_data(tb[NL80211_TXRATE_HT]),
3687 nla_len(tb[NL80211_TXRATE_HT]),
3688 mask->control[band].ht_mcs))
3691 if (tb[NL80211_TXRATE_VHT]) {
3692 if (!vht_set_mcs_mask(
3694 nla_data(tb[NL80211_TXRATE_VHT]),
3695 mask->control[band].vht_mcs))
3698 if (tb[NL80211_TXRATE_GI]) {
3699 mask->control[band].gi =
3700 nla_get_u8(tb[NL80211_TXRATE_GI]);
3701 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3705 if (mask->control[band].legacy == 0) {
3706 /* don't allow empty legacy rates if HT or VHT
3707 * are not even supported.
3709 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3710 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3713 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3714 if (mask->control[band].ht_mcs[i])
3717 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3718 if (mask->control[band].vht_mcs[i])
3721 /* legacy and mcs rates may not be both empty */
3730 static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3731 enum nl80211_band band,
3732 struct cfg80211_bitrate_mask *beacon_rate)
3734 u32 count_ht, count_vht, i;
3735 u32 rate = beacon_rate->control[band].legacy;
3737 /* Allow only one rate */
3738 if (hweight32(rate) > 1)
3742 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3743 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
3745 } else if (beacon_rate->control[band].ht_mcs[i]) {
3750 if (count_ht && rate)
3755 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3756 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
3758 } else if (beacon_rate->control[band].vht_mcs[i]) {
3763 if (count_vht && rate)
3767 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3771 !wiphy_ext_feature_isset(&rdev->wiphy,
3772 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3775 !wiphy_ext_feature_isset(&rdev->wiphy,
3776 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3779 !wiphy_ext_feature_isset(&rdev->wiphy,
3780 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3786 static int nl80211_parse_beacon(struct nlattr *attrs[],
3787 struct cfg80211_beacon_data *bcn)
3789 bool haveinfo = false;
3791 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3792 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3793 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3794 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3797 memset(bcn, 0, sizeof(*bcn));
3799 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3800 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3801 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3807 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3808 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3809 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3816 if (attrs[NL80211_ATTR_IE]) {
3817 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3818 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3821 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3822 bcn->proberesp_ies =
3823 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3824 bcn->proberesp_ies_len =
3825 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3828 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3829 bcn->assocresp_ies =
3830 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3831 bcn->assocresp_ies_len =
3832 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3835 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3836 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3837 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3843 static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3851 for (i = 0; i < rates[1]; i++) {
3852 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3853 params->ht_required = true;
3854 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3855 params->vht_required = true;
3860 * Since the nl80211 API didn't include, from the beginning, attributes about
3861 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3862 * benefit of drivers that rebuild IEs in the firmware.
3864 static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3866 const struct cfg80211_beacon_data *bcn = ¶ms->beacon;
3867 size_t ies_len = bcn->tail_len;
3868 const u8 *ies = bcn->tail;
3872 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3873 nl80211_check_ap_rate_selectors(params, rates);
3875 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3876 nl80211_check_ap_rate_selectors(params, rates);
3878 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3879 if (cap && cap[1] >= sizeof(*params->ht_cap))
3880 params->ht_cap = (void *)(cap + 2);
3881 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3882 if (cap && cap[1] >= sizeof(*params->vht_cap))
3883 params->vht_cap = (void *)(cap + 2);
3886 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3887 struct cfg80211_ap_settings *params)
3889 struct wireless_dev *wdev;
3892 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
3893 if (wdev->iftype != NL80211_IFTYPE_AP &&
3894 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3897 if (!wdev->preset_chandef.chan)
3900 params->chandef = wdev->preset_chandef;
3908 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3909 enum nl80211_auth_type auth_type,
3910 enum nl80211_commands cmd)
3912 if (auth_type > NL80211_AUTHTYPE_MAX)
3916 case NL80211_CMD_AUTHENTICATE:
3917 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3918 auth_type == NL80211_AUTHTYPE_SAE)
3920 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3921 NL80211_EXT_FEATURE_FILS_STA) &&
3922 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3923 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3924 auth_type == NL80211_AUTHTYPE_FILS_PK))
3927 case NL80211_CMD_CONNECT:
3928 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3929 auth_type == NL80211_AUTHTYPE_SAE)
3932 /* FILS with SK PFS or PK not supported yet */
3933 if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3934 auth_type == NL80211_AUTHTYPE_FILS_PK)
3936 if (!wiphy_ext_feature_isset(
3938 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
3939 auth_type == NL80211_AUTHTYPE_FILS_SK)
3942 case NL80211_CMD_START_AP:
3943 /* SAE not supported yet */
3944 if (auth_type == NL80211_AUTHTYPE_SAE)
3946 /* FILS not supported yet */
3947 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3948 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3949 auth_type == NL80211_AUTHTYPE_FILS_PK)
3957 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3960 struct net_device *dev = info->user_ptr[1];
3961 struct wireless_dev *wdev = dev->ieee80211_ptr;
3962 struct cfg80211_ap_settings params;
3965 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3966 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3969 if (!rdev->ops->start_ap)
3972 if (wdev->beacon_interval)
3975 memset(¶ms, 0, sizeof(params));
3977 /* these are required for START_AP */
3978 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3979 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3980 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3983 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3987 params.beacon_interval =
3988 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3989 params.dtim_period =
3990 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3992 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3993 params.beacon_interval);
3998 * In theory, some of these attributes should be required here
3999 * but since they were not used when the command was originally
4000 * added, keep them optional for old user space programs to let
4001 * them continue to work with drivers that do not need the
4002 * additional information -- drivers must check!
4004 if (info->attrs[NL80211_ATTR_SSID]) {
4005 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4007 nla_len(info->attrs[NL80211_ATTR_SSID]);
4008 if (params.ssid_len == 0 ||
4009 params.ssid_len > IEEE80211_MAX_SSID_LEN)
4013 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
4014 params.hidden_ssid = nla_get_u32(
4015 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
4016 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
4017 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
4018 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
4022 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4024 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4025 params.auth_type = nla_get_u32(
4026 info->attrs[NL80211_ATTR_AUTH_TYPE]);
4027 if (!nl80211_valid_auth_type(rdev, params.auth_type,
4028 NL80211_CMD_START_AP))
4031 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4033 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
4034 NL80211_MAX_NR_CIPHER_SUITES);
4038 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
4039 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
4041 params.inactivity_timeout = nla_get_u16(
4042 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
4045 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4046 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4048 params.p2p_ctwindow =
4049 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4050 if (params.p2p_ctwindow > 127)
4052 if (params.p2p_ctwindow != 0 &&
4053 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4057 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4060 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4062 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4065 params.p2p_opp_ps = tmp;
4066 if (params.p2p_opp_ps != 0 &&
4067 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4071 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4072 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
4075 } else if (wdev->preset_chandef.chan) {
4076 params.chandef = wdev->preset_chandef;
4077 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
4080 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
4084 if (info->attrs[NL80211_ATTR_TX_RATES]) {
4085 err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate);
4089 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
4090 ¶ms.beacon_rate);
4095 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
4097 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
4098 switch (params.smps_mode) {
4099 case NL80211_SMPS_OFF:
4101 case NL80211_SMPS_STATIC:
4102 if (!(rdev->wiphy.features &
4103 NL80211_FEATURE_STATIC_SMPS))
4106 case NL80211_SMPS_DYNAMIC:
4107 if (!(rdev->wiphy.features &
4108 NL80211_FEATURE_DYNAMIC_SMPS))
4115 params.smps_mode = NL80211_SMPS_OFF;
4118 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4119 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4122 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4123 params.acl = parse_acl_data(&rdev->wiphy, info);
4124 if (IS_ERR(params.acl))
4125 return PTR_ERR(params.acl);
4128 nl80211_calculate_ap_params(¶ms);
4131 err = rdev_start_ap(rdev, dev, ¶ms);
4133 wdev->preset_chandef = params.chandef;
4134 wdev->beacon_interval = params.beacon_interval;
4135 wdev->chandef = params.chandef;
4136 wdev->ssid_len = params.ssid_len;
4137 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
4139 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
4140 wdev->conn_owner_nlportid = info->snd_portid;
4149 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4151 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4152 struct net_device *dev = info->user_ptr[1];
4153 struct wireless_dev *wdev = dev->ieee80211_ptr;
4154 struct cfg80211_beacon_data params;
4157 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4158 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4161 if (!rdev->ops->change_beacon)
4164 if (!wdev->beacon_interval)
4167 err = nl80211_parse_beacon(info->attrs, ¶ms);
4172 err = rdev_change_beacon(rdev, dev, ¶ms);
4178 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
4180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4181 struct net_device *dev = info->user_ptr[1];
4183 return cfg80211_stop_ap(rdev, dev, false);
4186 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4187 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4188 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4189 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
4190 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
4191 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
4192 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
4195 static int parse_station_flags(struct genl_info *info,
4196 enum nl80211_iftype iftype,
4197 struct station_parameters *params)
4199 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
4204 * Try parsing the new attribute first so userspace
4205 * can specify both for older kernels.
4207 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4209 struct nl80211_sta_flag_update *sta_flags;
4211 sta_flags = nla_data(nla);
4212 params->sta_flags_mask = sta_flags->mask;
4213 params->sta_flags_set = sta_flags->set;
4214 params->sta_flags_set &= params->sta_flags_mask;
4215 if ((params->sta_flags_mask |
4216 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4221 /* if present, parse the old attribute */
4223 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
4227 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
4228 sta_flags_policy, info->extack))
4232 * Only allow certain flags for interface types so that
4233 * other attributes are silently ignored. Remember that
4234 * this is backward compatibility code with old userspace
4235 * and shouldn't be hit in other cases anyway.
4238 case NL80211_IFTYPE_AP:
4239 case NL80211_IFTYPE_AP_VLAN:
4240 case NL80211_IFTYPE_P2P_GO:
4241 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4242 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4243 BIT(NL80211_STA_FLAG_WME) |
4244 BIT(NL80211_STA_FLAG_MFP);
4246 case NL80211_IFTYPE_P2P_CLIENT:
4247 case NL80211_IFTYPE_STATION:
4248 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4249 BIT(NL80211_STA_FLAG_TDLS_PEER);
4251 case NL80211_IFTYPE_MESH_POINT:
4252 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4253 BIT(NL80211_STA_FLAG_MFP) |
4254 BIT(NL80211_STA_FLAG_AUTHORIZED);
4259 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4261 params->sta_flags_set |= (1<<flag);
4263 /* no longer support new API additions in old API */
4264 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4272 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4275 struct nlattr *rate;
4278 enum nl80211_rate_info rate_flg;
4280 rate = nla_nest_start(msg, attr);
4284 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4285 bitrate = cfg80211_calculate_bitrate(info);
4286 /* report 16-bit bitrate only if we can */
4287 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
4289 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4291 if (bitrate_compat > 0 &&
4292 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4296 case RATE_INFO_BW_5:
4297 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4299 case RATE_INFO_BW_10:
4300 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4305 case RATE_INFO_BW_20:
4308 case RATE_INFO_BW_40:
4309 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4311 case RATE_INFO_BW_80:
4312 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4314 case RATE_INFO_BW_160:
4315 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4319 if (rate_flg && nla_put_flag(msg, rate_flg))
4322 if (info->flags & RATE_INFO_FLAGS_MCS) {
4323 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4325 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4326 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4328 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4329 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4331 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4333 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4334 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4338 nla_nest_end(msg, rate);
4342 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4351 attr = nla_nest_start(msg, id);
4355 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4356 if (!(mask & BIT(i)))
4359 if (nla_put_u8(msg, i, signal[i]))
4363 nla_nest_end(msg, attr);
4368 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4370 struct cfg80211_registered_device *rdev,
4371 struct net_device *dev,
4372 const u8 *mac_addr, struct station_info *sinfo)
4375 struct nlattr *sinfoattr, *bss_param;
4377 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
4381 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4382 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4383 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4384 goto nla_put_failure;
4386 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4388 goto nla_put_failure;
4390 #define PUT_SINFO(attr, memb, type) do { \
4391 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
4392 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4393 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4395 goto nla_put_failure; \
4397 #define PUT_SINFO_U64(attr, memb) do { \
4398 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4399 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4400 sinfo->memb, NL80211_STA_INFO_PAD)) \
4401 goto nla_put_failure; \
4404 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4405 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4407 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4408 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
4409 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
4410 (u32)sinfo->rx_bytes))
4411 goto nla_put_failure;
4413 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4414 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
4415 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
4416 (u32)sinfo->tx_bytes))
4417 goto nla_put_failure;
4419 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4420 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
4421 PUT_SINFO(LLID, llid, u16);
4422 PUT_SINFO(PLID, plid, u16);
4423 PUT_SINFO(PLINK_STATE, plink_state, u8);
4424 PUT_SINFO_U64(RX_DURATION, rx_duration);
4426 switch (rdev->wiphy.signal_type) {
4427 case CFG80211_SIGNAL_TYPE_MBM:
4428 PUT_SINFO(SIGNAL, signal, u8);
4429 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
4434 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
4435 if (!nl80211_put_signal(msg, sinfo->chains,
4436 sinfo->chain_signal,
4437 NL80211_STA_INFO_CHAIN_SIGNAL))
4438 goto nla_put_failure;
4440 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
4441 if (!nl80211_put_signal(msg, sinfo->chains,
4442 sinfo->chain_signal_avg,
4443 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4444 goto nla_put_failure;
4446 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
4447 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4448 NL80211_STA_INFO_TX_BITRATE))
4449 goto nla_put_failure;
4451 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
4452 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4453 NL80211_STA_INFO_RX_BITRATE))
4454 goto nla_put_failure;
4457 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4458 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4459 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4460 PUT_SINFO(TX_FAILED, tx_failed, u32);
4461 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4462 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4463 PUT_SINFO(LOCAL_PM, local_pm, u32);
4464 PUT_SINFO(PEER_PM, peer_pm, u32);
4465 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4467 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
4468 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4470 goto nla_put_failure;
4472 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4473 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4474 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4475 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4476 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4477 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4478 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4479 sinfo->bss_param.dtim_period) ||
4480 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4481 sinfo->bss_param.beacon_interval))
4482 goto nla_put_failure;
4484 nla_nest_end(msg, bss_param);
4486 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
4487 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4488 sizeof(struct nl80211_sta_flag_update),
4490 goto nla_put_failure;
4492 PUT_SINFO_U64(T_OFFSET, t_offset);
4493 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4494 PUT_SINFO_U64(BEACON_RX, rx_beacon);
4495 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
4496 PUT_SINFO(ACK_SIGNAL, ack_signal, u8);
4499 #undef PUT_SINFO_U64
4501 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4502 struct nlattr *tidsattr;
4505 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4507 goto nla_put_failure;
4509 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4510 struct cfg80211_tid_stats *tidstats;
4511 struct nlattr *tidattr;
4513 tidstats = &sinfo->pertid[tid];
4515 if (!tidstats->filled)
4518 tidattr = nla_nest_start(msg, tid + 1);
4520 goto nla_put_failure;
4522 #define PUT_TIDVAL_U64(attr, memb) do { \
4523 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
4524 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4525 tidstats->memb, NL80211_TID_STATS_PAD)) \
4526 goto nla_put_failure; \
4529 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4530 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4531 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4532 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
4534 #undef PUT_TIDVAL_U64
4535 nla_nest_end(msg, tidattr);
4538 nla_nest_end(msg, tidsattr);
4541 nla_nest_end(msg, sinfoattr);
4543 if (sinfo->assoc_req_ies_len &&
4544 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4545 sinfo->assoc_req_ies))
4546 goto nla_put_failure;
4548 genlmsg_end(msg, hdr);
4552 genlmsg_cancel(msg, hdr);
4556 static int nl80211_dump_station(struct sk_buff *skb,
4557 struct netlink_callback *cb)
4559 struct station_info sinfo;
4560 struct cfg80211_registered_device *rdev;
4561 struct wireless_dev *wdev;
4562 u8 mac_addr[ETH_ALEN];
4563 int sta_idx = cb->args[2];
4567 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4571 if (!wdev->netdev) {
4576 if (!rdev->ops->dump_station) {
4582 memset(&sinfo, 0, sizeof(sinfo));
4583 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
4590 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
4591 NETLINK_CB(cb->skb).portid,
4592 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4593 rdev, wdev->netdev, mac_addr,
4601 cb->args[2] = sta_idx;
4609 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4612 struct net_device *dev = info->user_ptr[1];
4613 struct station_info sinfo;
4614 struct sk_buff *msg;
4615 u8 *mac_addr = NULL;
4618 memset(&sinfo, 0, sizeof(sinfo));
4620 if (!info->attrs[NL80211_ATTR_MAC])
4623 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4625 if (!rdev->ops->get_station)
4628 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
4632 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4636 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4637 info->snd_portid, info->snd_seq, 0,
4638 rdev, dev, mac_addr, &sinfo) < 0) {
4643 return genlmsg_reply(msg, info);
4646 int cfg80211_check_station_change(struct wiphy *wiphy,
4647 struct station_parameters *params,
4648 enum cfg80211_station_type statype)
4650 if (params->listen_interval != -1 &&
4651 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4654 if (params->support_p2p_ps != -1 &&
4655 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4659 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4660 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4663 /* When you run into this, adjust the code below for the new flag */
4664 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4667 case CFG80211_STA_MESH_PEER_KERNEL:
4668 case CFG80211_STA_MESH_PEER_USER:
4670 * No ignoring the TDLS flag here -- the userspace mesh
4671 * code doesn't have the bug of including TDLS in the
4674 if (params->sta_flags_mask &
4675 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4676 BIT(NL80211_STA_FLAG_MFP) |
4677 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4680 case CFG80211_STA_TDLS_PEER_SETUP:
4681 case CFG80211_STA_TDLS_PEER_ACTIVE:
4682 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4684 /* ignore since it can't change */
4685 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4688 /* disallow mesh-specific things */
4689 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4691 if (params->local_pm)
4693 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4697 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4698 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4699 /* TDLS can't be set, ... */
4700 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4703 * ... but don't bother the driver with it. This works around
4704 * a hostapd/wpa_supplicant issue -- it always includes the
4705 * TLDS_PEER flag in the mask even for AP mode.
4707 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4710 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4711 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4712 /* reject other things that can't change */
4713 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4715 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4717 if (params->supported_rates)
4719 if (params->ext_capab || params->ht_capa || params->vht_capa)
4723 if (statype != CFG80211_STA_AP_CLIENT &&
4724 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4730 case CFG80211_STA_AP_MLME_CLIENT:
4731 /* Use this only for authorizing/unauthorizing a station */
4732 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4735 case CFG80211_STA_AP_CLIENT:
4736 case CFG80211_STA_AP_CLIENT_UNASSOC:
4737 /* accept only the listed bits */
4738 if (params->sta_flags_mask &
4739 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4740 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4741 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4742 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4743 BIT(NL80211_STA_FLAG_WME) |
4744 BIT(NL80211_STA_FLAG_MFP)))
4747 /* but authenticated/associated only if driver handles it */
4748 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4749 params->sta_flags_mask &
4750 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4751 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4754 case CFG80211_STA_IBSS:
4755 case CFG80211_STA_AP_STA:
4756 /* reject any changes other than AUTHORIZED */
4757 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4760 case CFG80211_STA_TDLS_PEER_SETUP:
4761 /* reject any changes other than AUTHORIZED or WME */
4762 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4763 BIT(NL80211_STA_FLAG_WME)))
4765 /* force (at least) rates when authorizing */
4766 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4767 !params->supported_rates)
4770 case CFG80211_STA_TDLS_PEER_ACTIVE:
4771 /* reject any changes */
4773 case CFG80211_STA_MESH_PEER_KERNEL:
4774 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4777 case CFG80211_STA_MESH_PEER_USER:
4778 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4779 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4785 * Older kernel versions ignored this attribute entirely, so don't
4786 * reject attempts to update it but mark it as unused instead so the
4787 * driver won't look at the data.
4789 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4790 statype != CFG80211_STA_TDLS_PEER_SETUP)
4791 params->opmode_notif_used = false;
4795 EXPORT_SYMBOL(cfg80211_check_station_change);
4798 * Get vlan interface making sure it is running and on the right wiphy.
4800 static struct net_device *get_vlan(struct genl_info *info,
4801 struct cfg80211_registered_device *rdev)
4803 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4804 struct net_device *v;
4810 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4812 return ERR_PTR(-ENODEV);
4814 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4819 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4820 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4821 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4826 if (!netif_running(v)) {
4834 return ERR_PTR(ret);
4837 static const struct nla_policy
4838 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4839 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4840 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4843 static int nl80211_parse_sta_wme(struct genl_info *info,
4844 struct station_parameters *params)
4846 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4850 /* parse WME attributes if present */
4851 if (!info->attrs[NL80211_ATTR_STA_WME])
4854 nla = info->attrs[NL80211_ATTR_STA_WME];
4855 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4856 nl80211_sta_wme_policy, info->extack);
4860 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4861 params->uapsd_queues = nla_get_u8(
4862 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4863 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4866 if (tb[NL80211_STA_WME_MAX_SP])
4867 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4869 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4872 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4877 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4878 struct station_parameters *params)
4880 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4881 params->supported_channels =
4882 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4883 params->supported_channels_len =
4884 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4886 * Need to include at least one (first channel, number of
4887 * channels) tuple for each subband, and must have proper
4888 * tuples for the rest of the data as well.
4890 if (params->supported_channels_len < 2)
4892 if (params->supported_channels_len % 2)
4896 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4897 params->supported_oper_classes =
4898 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4899 params->supported_oper_classes_len =
4900 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4902 * The value of the Length field of the Supported Operating
4903 * Classes element is between 2 and 253.
4905 if (params->supported_oper_classes_len < 2 ||
4906 params->supported_oper_classes_len > 253)
4912 static int nl80211_set_station_tdls(struct genl_info *info,
4913 struct station_parameters *params)
4916 /* Dummy STA entry gets updated once the peer capabilities are known */
4917 if (info->attrs[NL80211_ATTR_PEER_AID])
4918 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4919 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4921 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4922 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4924 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4926 err = nl80211_parse_sta_channel_info(info, params);
4930 return nl80211_parse_sta_wme(info, params);
4933 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4936 struct net_device *dev = info->user_ptr[1];
4937 struct station_parameters params;
4941 memset(¶ms, 0, sizeof(params));
4943 if (!rdev->ops->change_station)
4947 * AID and listen_interval properties can be set only for unassociated
4948 * station. Include these parameters here and will check them in
4949 * cfg80211_check_station_change().
4951 if (info->attrs[NL80211_ATTR_STA_AID])
4952 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4954 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4955 params.listen_interval =
4956 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4958 params.listen_interval = -1;
4960 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4963 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4964 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4967 params.support_p2p_ps = tmp;
4969 params.support_p2p_ps = -1;
4972 if (!info->attrs[NL80211_ATTR_MAC])
4975 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4977 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4978 params.supported_rates =
4979 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4980 params.supported_rates_len =
4981 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4984 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4986 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4987 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4990 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4992 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4993 params.ext_capab_len =
4994 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4997 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5000 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
5001 params.plink_action =
5002 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5003 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5007 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
5008 params.plink_state =
5009 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
5010 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
5012 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
5013 params.peer_aid = nla_get_u16(
5014 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
5015 if (params.peer_aid > IEEE80211_MAX_AID)
5018 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
5021 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
5022 enum nl80211_mesh_power_mode pm = nla_get_u32(
5023 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
5025 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
5026 pm > NL80211_MESH_POWER_MAX)
5029 params.local_pm = pm;
5032 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5033 params.opmode_notif_used = true;
5034 params.opmode_notif =
5035 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5038 /* Include parameters for TDLS peer (will check later) */
5039 err = nl80211_set_station_tdls(info, ¶ms);
5043 params.vlan = get_vlan(info, rdev);
5044 if (IS_ERR(params.vlan))
5045 return PTR_ERR(params.vlan);
5047 switch (dev->ieee80211_ptr->iftype) {
5048 case NL80211_IFTYPE_AP:
5049 case NL80211_IFTYPE_AP_VLAN:
5050 case NL80211_IFTYPE_P2P_GO:
5051 case NL80211_IFTYPE_P2P_CLIENT:
5052 case NL80211_IFTYPE_STATION:
5053 case NL80211_IFTYPE_ADHOC:
5054 case NL80211_IFTYPE_MESH_POINT:
5061 /* driver will call cfg80211_check_station_change() */
5062 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
5066 dev_put(params.vlan);
5071 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
5073 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5075 struct net_device *dev = info->user_ptr[1];
5076 struct station_parameters params;
5077 u8 *mac_addr = NULL;
5078 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5079 BIT(NL80211_STA_FLAG_ASSOCIATED);
5081 memset(¶ms, 0, sizeof(params));
5083 if (!rdev->ops->add_station)
5086 if (!info->attrs[NL80211_ATTR_MAC])
5089 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5092 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
5095 if (!info->attrs[NL80211_ATTR_STA_AID] &&
5096 !info->attrs[NL80211_ATTR_PEER_AID])
5099 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5100 params.supported_rates =
5101 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5102 params.supported_rates_len =
5103 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5104 params.listen_interval =
5105 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
5107 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5110 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5111 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5114 params.support_p2p_ps = tmp;
5117 * if not specified, assume it's supported for P2P GO interface,
5118 * and is NOT supported for AP interface
5120 params.support_p2p_ps =
5121 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5124 if (info->attrs[NL80211_ATTR_PEER_AID])
5125 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
5127 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
5128 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5131 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5133 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5134 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5137 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5139 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5140 params.ext_capab_len =
5141 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5144 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5146 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5148 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5150 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5152 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5153 params.opmode_notif_used = true;
5154 params.opmode_notif =
5155 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5158 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
5159 params.plink_action =
5160 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5161 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5165 err = nl80211_parse_sta_channel_info(info, ¶ms);
5169 err = nl80211_parse_sta_wme(info, ¶ms);
5173 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5176 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5177 * as userspace might just pass through the capabilities from the IEs
5178 * directly, rather than enforcing this restriction and returning an
5179 * error in this case.
5181 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5182 params.ht_capa = NULL;
5183 params.vht_capa = NULL;
5186 /* When you run into this, adjust the code below for the new flag */
5187 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5189 switch (dev->ieee80211_ptr->iftype) {
5190 case NL80211_IFTYPE_AP:
5191 case NL80211_IFTYPE_AP_VLAN:
5192 case NL80211_IFTYPE_P2P_GO:
5193 /* ignore WME attributes if iface/sta is not capable */
5194 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5195 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5196 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5198 /* TDLS peers cannot be added */
5199 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5200 info->attrs[NL80211_ATTR_PEER_AID])
5202 /* but don't bother the driver with it */
5203 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
5205 /* allow authenticated/associated only if driver handles it */
5206 if (!(rdev->wiphy.features &
5207 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
5208 params.sta_flags_mask & auth_assoc)
5211 /* Older userspace, or userspace wanting to be compatible with
5212 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5213 * and assoc flags in the mask, but assumes the station will be
5214 * added as associated anyway since this was the required driver
5215 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5217 * In order to not bother drivers with this quirk in the API
5218 * set the flags in both the mask and set for new stations in
5221 if (!(params.sta_flags_mask & auth_assoc)) {
5222 params.sta_flags_mask |= auth_assoc;
5223 params.sta_flags_set |= auth_assoc;
5226 /* must be last in here for error handling */
5227 params.vlan = get_vlan(info, rdev);
5228 if (IS_ERR(params.vlan))
5229 return PTR_ERR(params.vlan);
5231 case NL80211_IFTYPE_MESH_POINT:
5232 /* ignore uAPSD data */
5233 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5235 /* associated is disallowed */
5236 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5238 /* TDLS peers cannot be added */
5239 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5240 info->attrs[NL80211_ATTR_PEER_AID])
5243 case NL80211_IFTYPE_STATION:
5244 case NL80211_IFTYPE_P2P_CLIENT:
5245 /* ignore uAPSD data */
5246 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5248 /* these are disallowed */
5249 if (params.sta_flags_mask &
5250 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5251 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
5253 /* Only TDLS peers can be added */
5254 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5256 /* Can only add if TDLS ... */
5257 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5259 /* ... with external setup is supported */
5260 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5263 * Older wpa_supplicant versions always mark the TDLS peer
5264 * as authorized, but it shouldn't yet be.
5266 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
5272 /* be aware of params.vlan when changing code here */
5274 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
5277 dev_put(params.vlan);
5281 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5284 struct net_device *dev = info->user_ptr[1];
5285 struct station_del_parameters params;
5287 memset(¶ms, 0, sizeof(params));
5289 if (info->attrs[NL80211_ATTR_MAC])
5290 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5292 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5293 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5294 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5295 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5298 if (!rdev->ops->del_station)
5301 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5303 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5304 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5305 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5308 /* Default to Deauthentication frame */
5309 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5312 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5313 params.reason_code =
5314 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5315 if (params.reason_code == 0)
5316 return -EINVAL; /* 0 is reserved */
5318 /* Default to reason code 2 */
5319 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5322 return rdev_del_station(rdev, dev, ¶ms);
5325 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
5326 int flags, struct net_device *dev,
5327 u8 *dst, u8 *next_hop,
5328 struct mpath_info *pinfo)
5331 struct nlattr *pinfoattr;
5333 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
5337 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5338 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5339 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5340 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5341 goto nla_put_failure;
5343 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5345 goto nla_put_failure;
5346 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5347 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5349 goto nla_put_failure;
5350 if (((pinfo->filled & MPATH_INFO_SN) &&
5351 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5352 ((pinfo->filled & MPATH_INFO_METRIC) &&
5353 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5355 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5356 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5358 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5359 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5361 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5362 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5363 pinfo->discovery_timeout)) ||
5364 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5365 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5366 pinfo->discovery_retries)))
5367 goto nla_put_failure;
5369 nla_nest_end(msg, pinfoattr);
5371 genlmsg_end(msg, hdr);
5375 genlmsg_cancel(msg, hdr);
5379 static int nl80211_dump_mpath(struct sk_buff *skb,
5380 struct netlink_callback *cb)
5382 struct mpath_info pinfo;
5383 struct cfg80211_registered_device *rdev;
5384 struct wireless_dev *wdev;
5386 u8 next_hop[ETH_ALEN];
5387 int path_idx = cb->args[2];
5391 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5395 if (!rdev->ops->dump_mpath) {
5400 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5406 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
5413 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5414 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5415 wdev->netdev, dst, next_hop,
5423 cb->args[2] = path_idx;
5430 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5434 struct net_device *dev = info->user_ptr[1];
5435 struct mpath_info pinfo;
5436 struct sk_buff *msg;
5438 u8 next_hop[ETH_ALEN];
5440 memset(&pinfo, 0, sizeof(pinfo));
5442 if (!info->attrs[NL80211_ATTR_MAC])
5445 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5447 if (!rdev->ops->get_mpath)
5450 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5453 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
5457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5461 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5462 dev, dst, next_hop, &pinfo) < 0) {
5467 return genlmsg_reply(msg, info);
5470 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5473 struct net_device *dev = info->user_ptr[1];
5475 u8 *next_hop = NULL;
5477 if (!info->attrs[NL80211_ATTR_MAC])
5480 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5483 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5484 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5486 if (!rdev->ops->change_mpath)
5489 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5492 return rdev_change_mpath(rdev, dev, dst, next_hop);
5495 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5498 struct net_device *dev = info->user_ptr[1];
5500 u8 *next_hop = NULL;
5502 if (!info->attrs[NL80211_ATTR_MAC])
5505 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5508 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5509 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5511 if (!rdev->ops->add_mpath)
5514 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5517 return rdev_add_mpath(rdev, dev, dst, next_hop);
5520 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5523 struct net_device *dev = info->user_ptr[1];
5526 if (info->attrs[NL80211_ATTR_MAC])
5527 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5529 if (!rdev->ops->del_mpath)
5532 return rdev_del_mpath(rdev, dev, dst);
5535 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5539 struct net_device *dev = info->user_ptr[1];
5540 struct mpath_info pinfo;
5541 struct sk_buff *msg;
5545 memset(&pinfo, 0, sizeof(pinfo));
5547 if (!info->attrs[NL80211_ATTR_MAC])
5550 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5552 if (!rdev->ops->get_mpp)
5555 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5558 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5562 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5566 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5567 dev, dst, mpp, &pinfo) < 0) {
5572 return genlmsg_reply(msg, info);
5575 static int nl80211_dump_mpp(struct sk_buff *skb,
5576 struct netlink_callback *cb)
5578 struct mpath_info pinfo;
5579 struct cfg80211_registered_device *rdev;
5580 struct wireless_dev *wdev;
5583 int path_idx = cb->args[2];
5587 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5591 if (!rdev->ops->dump_mpp) {
5596 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5602 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5609 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5610 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5611 wdev->netdev, dst, mpp,
5619 cb->args[2] = path_idx;
5626 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5629 struct net_device *dev = info->user_ptr[1];
5630 struct wireless_dev *wdev = dev->ieee80211_ptr;
5631 struct bss_parameters params;
5634 memset(¶ms, 0, sizeof(params));
5635 /* default to not changing parameters */
5636 params.use_cts_prot = -1;
5637 params.use_short_preamble = -1;
5638 params.use_short_slot_time = -1;
5639 params.ap_isolate = -1;
5640 params.ht_opmode = -1;
5641 params.p2p_ctwindow = -1;
5642 params.p2p_opp_ps = -1;
5644 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5645 params.use_cts_prot =
5646 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5647 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5648 params.use_short_preamble =
5649 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5650 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5651 params.use_short_slot_time =
5652 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
5653 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5654 params.basic_rates =
5655 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5656 params.basic_rates_len =
5657 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5659 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5660 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
5661 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5663 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
5665 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5666 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5668 params.p2p_ctwindow =
5669 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5670 if (params.p2p_ctwindow < 0)
5672 if (params.p2p_ctwindow != 0 &&
5673 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5677 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5680 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5682 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5685 params.p2p_opp_ps = tmp;
5686 if (params.p2p_opp_ps &&
5687 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5691 if (!rdev->ops->change_bss)
5694 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5695 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5699 err = rdev_change_bss(rdev, dev, ¶ms);
5705 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5709 enum nl80211_user_reg_hint_type user_reg_hint_type;
5713 * You should only get this when cfg80211 hasn't yet initialized
5714 * completely when built-in to the kernel right between the time
5715 * window between nl80211_init() and regulatory_init(), if that is
5718 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5719 return -EINPROGRESS;
5721 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5722 user_reg_hint_type =
5723 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5725 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5727 switch (user_reg_hint_type) {
5728 case NL80211_USER_REG_HINT_USER:
5729 case NL80211_USER_REG_HINT_CELL_BASE:
5730 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5733 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5734 return regulatory_hint_user(data, user_reg_hint_type);
5735 case NL80211_USER_REG_HINT_INDOOR:
5736 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5737 owner_nlportid = info->snd_portid;
5738 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5744 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5750 static int nl80211_reload_regdb(struct sk_buff *skb, struct genl_info *info)
5752 return reg_reload_regdb();
5755 static int nl80211_get_mesh_config(struct sk_buff *skb,
5756 struct genl_info *info)
5758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5759 struct net_device *dev = info->user_ptr[1];
5760 struct wireless_dev *wdev = dev->ieee80211_ptr;
5761 struct mesh_config cur_params;
5764 struct nlattr *pinfoattr;
5765 struct sk_buff *msg;
5767 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5770 if (!rdev->ops->get_mesh_config)
5774 /* If not connected, get default parameters */
5775 if (!wdev->mesh_id_len)
5776 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5778 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5784 /* Draw up a netlink message to send back */
5785 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5788 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5789 NL80211_CMD_GET_MESH_CONFIG);
5792 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5794 goto nla_put_failure;
5795 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5796 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5797 cur_params.dot11MeshRetryTimeout) ||
5798 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5799 cur_params.dot11MeshConfirmTimeout) ||
5800 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5801 cur_params.dot11MeshHoldingTimeout) ||
5802 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5803 cur_params.dot11MeshMaxPeerLinks) ||
5804 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5805 cur_params.dot11MeshMaxRetries) ||
5806 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5807 cur_params.dot11MeshTTL) ||
5808 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5809 cur_params.element_ttl) ||
5810 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5811 cur_params.auto_open_plinks) ||
5812 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5813 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5814 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5815 cur_params.dot11MeshHWMPmaxPREQretries) ||
5816 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5817 cur_params.path_refresh_time) ||
5818 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5819 cur_params.min_discovery_timeout) ||
5820 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5821 cur_params.dot11MeshHWMPactivePathTimeout) ||
5822 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5823 cur_params.dot11MeshHWMPpreqMinInterval) ||
5824 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5825 cur_params.dot11MeshHWMPperrMinInterval) ||
5826 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5827 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5828 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5829 cur_params.dot11MeshHWMPRootMode) ||
5830 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5831 cur_params.dot11MeshHWMPRannInterval) ||
5832 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5833 cur_params.dot11MeshGateAnnouncementProtocol) ||
5834 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5835 cur_params.dot11MeshForwarding) ||
5836 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5837 cur_params.rssi_threshold) ||
5838 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5839 cur_params.ht_opmode) ||
5840 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5841 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5842 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5843 cur_params.dot11MeshHWMProotInterval) ||
5844 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5845 cur_params.dot11MeshHWMPconfirmationInterval) ||
5846 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5847 cur_params.power_mode) ||
5848 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5849 cur_params.dot11MeshAwakeWindowDuration) ||
5850 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5851 cur_params.plink_timeout))
5852 goto nla_put_failure;
5853 nla_nest_end(msg, pinfoattr);
5854 genlmsg_end(msg, hdr);
5855 return genlmsg_reply(msg, info);
5863 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5864 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5865 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5866 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5867 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5868 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5869 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5870 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5871 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5872 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5873 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5874 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5875 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5876 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5877 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5878 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5879 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5880 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5881 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5882 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5883 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5884 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5885 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5886 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5887 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5888 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5889 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5890 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5891 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5894 static const struct nla_policy
5895 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5896 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5897 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5898 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5899 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5900 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5901 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5902 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5903 .len = IEEE80211_MAX_DATA_LEN },
5904 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5907 static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5909 u8 val = nla_get_u8(nla);
5910 if (val < min || val > max)
5916 static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5918 u8 val = nla_get_u8(nla);
5919 if (val < min || val > max)
5925 static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5927 u16 val = nla_get_u16(nla);
5928 if (val < min || val > max)
5934 static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5936 u32 val = nla_get_u32(nla);
5937 if (val < min || val > max)
5943 static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5945 s32 val = nla_get_s32(nla);
5946 if (val < min || val > max)
5952 static int nl80211_check_power_mode(const struct nlattr *nla,
5953 enum nl80211_mesh_power_mode min,
5954 enum nl80211_mesh_power_mode max,
5955 enum nl80211_mesh_power_mode *out)
5957 u32 val = nla_get_u32(nla);
5958 if (val < min || val > max)
5964 static int nl80211_parse_mesh_config(struct genl_info *info,
5965 struct mesh_config *cfg,
5968 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5972 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5975 if (fn(tb[attr], min, max, &cfg->param)) \
5977 mask |= (1 << (attr - 1)); \
5981 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5983 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5984 info->attrs[NL80211_ATTR_MESH_CONFIG],
5985 nl80211_meshconf_params_policy, info->extack))
5988 /* This makes sure that there aren't more than 32 mesh config
5989 * parameters (otherwise our bitfield scheme would not work.) */
5990 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5992 /* Fill in the params struct */
5993 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5994 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5996 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5997 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
6000 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
6002 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
6003 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
6005 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
6006 mask, NL80211_MESHCONF_MAX_RETRIES,
6008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
6009 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
6010 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
6011 mask, NL80211_MESHCONF_ELEMENT_TTL,
6013 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
6014 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
6015 nl80211_check_bool);
6016 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
6018 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
6020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
6021 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
6023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
6024 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
6026 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
6027 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
6029 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
6031 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
6033 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
6035 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
6037 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
6039 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
6041 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6042 dot11MeshHWMPnetDiameterTraversalTime,
6044 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
6046 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
6047 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
6049 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
6050 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
6052 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6053 dot11MeshGateAnnouncementProtocol, 0, 1,
6054 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
6055 nl80211_check_bool);
6056 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
6057 mask, NL80211_MESHCONF_FORWARDING,
6058 nl80211_check_bool);
6059 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
6060 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
6063 * Check HT operation mode based on
6064 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
6066 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
6067 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
6069 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
6070 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
6071 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6074 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
6075 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6078 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
6079 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
6080 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
6081 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
6084 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
6085 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
6086 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6090 cfg->ht_opmode = ht_opmode;
6091 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
6093 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
6095 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
6097 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
6098 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
6100 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6101 dot11MeshHWMPconfirmationInterval,
6103 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
6105 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
6106 NL80211_MESH_POWER_ACTIVE,
6107 NL80211_MESH_POWER_MAX,
6108 mask, NL80211_MESHCONF_POWER_MODE,
6109 nl80211_check_power_mode);
6110 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
6112 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
6113 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
6114 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
6121 #undef FILL_IN_MESH_PARAM_IF_SET
6124 static int nl80211_parse_mesh_setup(struct genl_info *info,
6125 struct mesh_setup *setup)
6127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6128 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6130 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6132 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6133 info->attrs[NL80211_ATTR_MESH_SETUP],
6134 nl80211_mesh_setup_params_policy, info->extack))
6137 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6138 setup->sync_method =
6139 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6140 IEEE80211_SYNC_METHOD_VENDOR :
6141 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6143 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6144 setup->path_sel_proto =
6145 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6146 IEEE80211_PATH_PROTOCOL_VENDOR :
6147 IEEE80211_PATH_PROTOCOL_HWMP;
6149 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6150 setup->path_metric =
6151 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6152 IEEE80211_PATH_METRIC_VENDOR :
6153 IEEE80211_PATH_METRIC_AIRTIME;
6155 if (tb[NL80211_MESH_SETUP_IE]) {
6156 struct nlattr *ieattr =
6157 tb[NL80211_MESH_SETUP_IE];
6158 if (!is_valid_ie_attr(ieattr))
6160 setup->ie = nla_data(ieattr);
6161 setup->ie_len = nla_len(ieattr);
6163 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6164 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6166 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
6167 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6168 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
6169 if (setup->is_secure)
6170 setup->user_mpm = true;
6172 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6173 if (!setup->user_mpm)
6176 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6182 static int nl80211_update_mesh_config(struct sk_buff *skb,
6183 struct genl_info *info)
6185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6186 struct net_device *dev = info->user_ptr[1];
6187 struct wireless_dev *wdev = dev->ieee80211_ptr;
6188 struct mesh_config cfg;
6192 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6195 if (!rdev->ops->update_mesh_config)
6198 err = nl80211_parse_mesh_config(info, &cfg, &mask);
6203 if (!wdev->mesh_id_len)
6207 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
6214 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6215 struct sk_buff *msg)
6217 struct nlattr *nl_reg_rules;
6220 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6221 (regdom->dfs_region &&
6222 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
6223 goto nla_put_failure;
6225 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6227 goto nla_put_failure;
6229 for (i = 0; i < regdom->n_reg_rules; i++) {
6230 struct nlattr *nl_reg_rule;
6231 const struct ieee80211_reg_rule *reg_rule;
6232 const struct ieee80211_freq_range *freq_range;
6233 const struct ieee80211_power_rule *power_rule;
6234 unsigned int max_bandwidth_khz;
6236 reg_rule = ®dom->reg_rules[i];
6237 freq_range = ®_rule->freq_range;
6238 power_rule = ®_rule->power_rule;
6240 nl_reg_rule = nla_nest_start(msg, i);
6242 goto nla_put_failure;
6244 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6245 if (!max_bandwidth_khz)
6246 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6249 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6251 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6252 freq_range->start_freq_khz) ||
6253 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6254 freq_range->end_freq_khz) ||
6255 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
6256 max_bandwidth_khz) ||
6257 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6258 power_rule->max_antenna_gain) ||
6259 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
6260 power_rule->max_eirp) ||
6261 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6262 reg_rule->dfs_cac_ms))
6263 goto nla_put_failure;
6265 nla_nest_end(msg, nl_reg_rule);
6268 nla_nest_end(msg, nl_reg_rules);
6275 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6277 const struct ieee80211_regdomain *regdom = NULL;
6278 struct cfg80211_registered_device *rdev;
6279 struct wiphy *wiphy = NULL;
6280 struct sk_buff *msg;
6283 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6287 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6288 NL80211_CMD_GET_REG);
6292 if (info->attrs[NL80211_ATTR_WIPHY]) {
6295 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6298 return PTR_ERR(rdev);
6301 wiphy = &rdev->wiphy;
6302 self_managed = wiphy->regulatory_flags &
6303 REGULATORY_WIPHY_SELF_MANAGED;
6304 regdom = get_wiphy_regdom(wiphy);
6306 /* a self-managed-reg device must have a private regdom */
6307 if (WARN_ON(!regdom && self_managed)) {
6313 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6314 goto nla_put_failure;
6317 if (!wiphy && reg_last_request_cell_base() &&
6318 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6319 NL80211_USER_REG_HINT_CELL_BASE))
6320 goto nla_put_failure;
6325 regdom = rcu_dereference(cfg80211_regdomain);
6327 if (nl80211_put_regdom(regdom, msg))
6328 goto nla_put_failure_rcu;
6332 genlmsg_end(msg, hdr);
6333 return genlmsg_reply(msg, info);
6335 nla_put_failure_rcu:
6343 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6344 u32 seq, int flags, struct wiphy *wiphy,
6345 const struct ieee80211_regdomain *regdom)
6347 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6348 NL80211_CMD_GET_REG);
6353 genl_dump_check_consistent(cb, hdr);
6355 if (nl80211_put_regdom(regdom, msg))
6356 goto nla_put_failure;
6358 if (!wiphy && reg_last_request_cell_base() &&
6359 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6360 NL80211_USER_REG_HINT_CELL_BASE))
6361 goto nla_put_failure;
6364 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6365 goto nla_put_failure;
6367 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6368 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6369 goto nla_put_failure;
6371 genlmsg_end(msg, hdr);
6375 genlmsg_cancel(msg, hdr);
6379 static int nl80211_get_reg_dump(struct sk_buff *skb,
6380 struct netlink_callback *cb)
6382 const struct ieee80211_regdomain *regdom = NULL;
6383 struct cfg80211_registered_device *rdev;
6384 int err, reg_idx, start = cb->args[2];
6388 if (cfg80211_regdomain && start == 0) {
6389 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6391 rtnl_dereference(cfg80211_regdomain));
6396 /* the global regdom is idx 0 */
6398 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6399 regdom = get_wiphy_regdom(&rdev->wiphy);
6403 if (++reg_idx <= start)
6406 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6407 NLM_F_MULTI, &rdev->wiphy, regdom);
6414 cb->args[2] = reg_idx;
6421 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
6422 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6423 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6424 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6425 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6426 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6427 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6428 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6429 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6432 static int parse_reg_rule(struct nlattr *tb[],
6433 struct ieee80211_reg_rule *reg_rule)
6435 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
6436 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
6438 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6440 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6442 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6444 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6446 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6449 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6451 freq_range->start_freq_khz =
6452 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6453 freq_range->end_freq_khz =
6454 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6455 freq_range->max_bandwidth_khz =
6456 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6458 power_rule->max_eirp =
6459 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6461 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6462 power_rule->max_antenna_gain =
6463 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6465 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6466 reg_rule->dfs_cac_ms =
6467 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6472 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6474 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6475 struct nlattr *nl_reg_rule;
6477 int rem_reg_rules, r;
6478 u32 num_rules = 0, rule_idx = 0, size_of_regd;
6479 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
6480 struct ieee80211_regdomain *rd;
6482 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6485 if (!info->attrs[NL80211_ATTR_REG_RULES])
6488 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6490 if (info->attrs[NL80211_ATTR_DFS_REGION])
6491 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6493 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6496 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
6500 if (!reg_is_valid_request(alpha2))
6503 size_of_regd = sizeof(struct ieee80211_regdomain) +
6504 num_rules * sizeof(struct ieee80211_reg_rule);
6506 rd = kzalloc(size_of_regd, GFP_KERNEL);
6510 rd->n_reg_rules = num_rules;
6511 rd->alpha2[0] = alpha2[0];
6512 rd->alpha2[1] = alpha2[1];
6515 * Disable DFS master mode if the DFS region was
6516 * not supported or known on this kernel.
6518 if (reg_supported_dfs_region(dfs_region))
6519 rd->dfs_region = dfs_region;
6521 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6523 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
6524 nl_reg_rule, reg_rule_policy,
6528 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6534 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6540 /* set_regdom takes ownership of rd */
6541 return set_regdom(rd, REGD_SOURCE_CRDA);
6546 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
6548 static int validate_scan_freqs(struct nlattr *freqs)
6550 struct nlattr *attr1, *attr2;
6551 int n_channels = 0, tmp1, tmp2;
6553 nla_for_each_nested(attr1, freqs, tmp1)
6554 if (nla_len(attr1) != sizeof(u32))
6557 nla_for_each_nested(attr1, freqs, tmp1) {
6560 * Some hardware has a limited channel list for
6561 * scanning, and it is pretty much nonsensical
6562 * to scan for a channel twice, so disallow that
6563 * and don't require drivers to check that the
6564 * channel list they get isn't longer than what
6565 * they can scan, as long as they can scan all
6566 * the channels they registered at once.
6568 nla_for_each_nested(attr2, freqs, tmp2)
6569 if (attr1 != attr2 &&
6570 nla_get_u32(attr1) == nla_get_u32(attr2))
6577 static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
6579 return b < NUM_NL80211_BANDS && wiphy->bands[b];
6582 static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6583 struct cfg80211_bss_selection *bss_select)
6585 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6586 struct nlattr *nest;
6591 /* only process one nested attribute */
6592 nest = nla_data(nla);
6593 if (!nla_ok(nest, nla_len(nest)))
6596 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
6597 nl80211_bss_select_policy, NULL);
6601 /* only one attribute may be given */
6602 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6610 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6612 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6613 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6615 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6616 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6617 bss_select->param.band_pref =
6618 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6619 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6623 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6624 struct nl80211_bss_select_rssi_adjust *adj_param;
6626 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6627 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6628 bss_select->param.adjust.band = adj_param->band;
6629 bss_select->param.adjust.delta = adj_param->delta;
6630 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6634 /* user-space did not provide behaviour attribute */
6635 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6638 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6644 static int nl80211_parse_random_mac(struct nlattr **attrs,
6645 u8 *mac_addr, u8 *mac_addr_mask)
6649 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
6650 eth_zero_addr(mac_addr);
6651 eth_zero_addr(mac_addr_mask);
6653 mac_addr_mask[0] = 0x3;
6658 /* need both or none */
6659 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6662 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6663 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6665 /* don't allow or configure an mcast address */
6666 if (!is_multicast_ether_addr(mac_addr_mask) ||
6667 is_multicast_ether_addr(mac_addr))
6671 * allow users to pass a MAC address that has bits set outside
6672 * of the mask, but don't bother drivers with having to deal
6675 for (i = 0; i < ETH_ALEN; i++)
6676 mac_addr[i] &= mac_addr_mask[i];
6681 static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6683 ASSERT_WDEV_LOCK(wdev);
6685 if (!cfg80211_beaconing_iface_active(wdev))
6688 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6691 return regulatory_pre_cac_allowed(wdev->wiphy);
6695 nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev,
6696 void *request, struct nlattr **attrs,
6699 u8 *mac_addr, *mac_addr_mask;
6701 enum nl80211_feature_flags randomness_flag;
6703 if (!attrs[NL80211_ATTR_SCAN_FLAGS])
6706 if (is_sched_scan) {
6707 struct cfg80211_sched_scan_request *req = request;
6709 randomness_flag = wdev ?
6710 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR :
6711 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6712 flags = &req->flags;
6713 mac_addr = req->mac_addr;
6714 mac_addr_mask = req->mac_addr_mask;
6716 struct cfg80211_scan_request *req = request;
6718 randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
6719 flags = &req->flags;
6720 mac_addr = req->mac_addr;
6721 mac_addr_mask = req->mac_addr_mask;
6724 *flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]);
6726 if (((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6727 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
6728 ((*flags & NL80211_SCAN_FLAG_LOW_SPAN) &&
6729 !wiphy_ext_feature_isset(wiphy,
6730 NL80211_EXT_FEATURE_LOW_SPAN_SCAN)) ||
6731 ((*flags & NL80211_SCAN_FLAG_LOW_POWER) &&
6732 !wiphy_ext_feature_isset(wiphy,
6733 NL80211_EXT_FEATURE_LOW_POWER_SCAN)) ||
6734 ((*flags & NL80211_SCAN_FLAG_HIGH_ACCURACY) &&
6735 !wiphy_ext_feature_isset(wiphy,
6736 NL80211_EXT_FEATURE_HIGH_ACCURACY_SCAN)))
6739 if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6742 if (!(wiphy->features & randomness_flag) ||
6743 (wdev && wdev->current_bss))
6746 err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask);
6751 if ((*flags & NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME) &&
6752 !wiphy_ext_feature_isset(wiphy,
6753 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME))
6756 if ((*flags & NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP) &&
6757 !wiphy_ext_feature_isset(wiphy,
6758 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP))
6761 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) &&
6762 !wiphy_ext_feature_isset(wiphy,
6763 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION))
6766 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE) &&
6767 !wiphy_ext_feature_isset(wiphy,
6768 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE))
6774 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6777 struct wireless_dev *wdev = info->user_ptr[1];
6778 struct cfg80211_scan_request *request;
6779 struct nlattr *attr;
6780 struct wiphy *wiphy;
6781 int err, tmp, n_ssids = 0, n_channels, i;
6784 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6787 wiphy = &rdev->wiphy;
6789 if (wdev->iftype == NL80211_IFTYPE_NAN)
6792 if (!rdev->ops->scan)
6795 if (rdev->scan_req || rdev->scan_msg) {
6800 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6801 n_channels = validate_scan_freqs(
6802 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6808 n_channels = ieee80211_get_num_supported_channels(wiphy);
6811 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6812 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6815 if (n_ssids > wiphy->max_scan_ssids) {
6820 if (info->attrs[NL80211_ATTR_IE])
6821 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6825 if (ie_len > wiphy->max_scan_ie_len) {
6830 request = kzalloc(sizeof(*request)
6831 + sizeof(*request->ssids) * n_ssids
6832 + sizeof(*request->channels) * n_channels
6833 + ie_len, GFP_KERNEL);
6840 request->ssids = (void *)&request->channels[n_channels];
6841 request->n_ssids = n_ssids;
6844 request->ie = (void *)(request->ssids + n_ssids);
6846 request->ie = (void *)(request->channels + n_channels);
6850 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6851 /* user specified, bail out if channel not found */
6852 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
6853 struct ieee80211_channel *chan;
6855 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6862 /* ignore disabled channels */
6863 if (chan->flags & IEEE80211_CHAN_DISABLED)
6866 request->channels[i] = chan;
6870 enum nl80211_band band;
6873 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6876 if (!wiphy->bands[band])
6878 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6879 struct ieee80211_channel *chan;
6881 chan = &wiphy->bands[band]->channels[j];
6883 if (chan->flags & IEEE80211_CHAN_DISABLED)
6886 request->channels[i] = chan;
6897 request->n_channels = i;
6900 if (!cfg80211_off_channel_oper_allowed(wdev)) {
6901 struct ieee80211_channel *chan;
6903 if (request->n_channels != 1) {
6909 chan = request->channels[0];
6910 if (chan->center_freq != wdev->chandef.chan->center_freq) {
6920 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
6921 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6925 request->ssids[i].ssid_len = nla_len(attr);
6926 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
6931 if (info->attrs[NL80211_ATTR_IE]) {
6932 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6933 memcpy((void *)request->ie,
6934 nla_data(info->attrs[NL80211_ATTR_IE]),
6938 for (i = 0; i < NUM_NL80211_BANDS; i++)
6939 if (wiphy->bands[i])
6941 (1 << wiphy->bands[i]->n_bitrates) - 1;
6943 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6944 nla_for_each_nested(attr,
6945 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6947 enum nl80211_band band = nla_type(attr);
6949 if (band < 0 || band >= NUM_NL80211_BANDS) {
6954 if (!wiphy->bands[band])
6957 err = ieee80211_get_ratemask(wiphy->bands[band],
6960 &request->rates[band]);
6966 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6967 if (!wiphy_ext_feature_isset(wiphy,
6968 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6974 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6975 request->duration_mandatory =
6976 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6979 err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs,
6985 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6987 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6988 * BSSID to scan for. This was problematic because that same attribute
6989 * was already used for another purpose (local random MAC address). The
6990 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6991 * compatibility with older userspace components, also use the
6992 * NL80211_ATTR_MAC value here if it can be determined to be used for
6993 * the specific BSSID use case instead of the random MAC address
6994 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6996 if (info->attrs[NL80211_ATTR_BSSID])
6997 memcpy(request->bssid,
6998 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6999 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
7000 info->attrs[NL80211_ATTR_MAC])
7001 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
7004 eth_broadcast_addr(request->bssid);
7006 request->wdev = wdev;
7007 request->wiphy = &rdev->wiphy;
7008 request->scan_start = jiffies;
7010 rdev->scan_req = request;
7011 err = rdev_scan(rdev, request);
7014 nl80211_send_scan_start(rdev, wdev);
7016 dev_hold(wdev->netdev);
7019 rdev->scan_req = NULL;
7027 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
7029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7030 struct wireless_dev *wdev = info->user_ptr[1];
7032 if (!rdev->ops->abort_scan)
7038 if (!rdev->scan_req)
7041 rdev_abort_scan(rdev, wdev);
7046 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
7047 struct cfg80211_sched_scan_request *request,
7048 struct nlattr **attrs)
7050 int tmp, err, i = 0;
7051 struct nlattr *attr;
7053 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7057 * If scan plans are not specified,
7058 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
7059 * case one scan plan will be set with the specified scan
7060 * interval and infinite number of iterations.
7062 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
7066 request->scan_plans[0].interval =
7067 DIV_ROUND_UP(interval, MSEC_PER_SEC);
7068 if (!request->scan_plans[0].interval)
7071 if (request->scan_plans[0].interval >
7072 wiphy->max_sched_scan_plan_interval)
7073 request->scan_plans[0].interval =
7074 wiphy->max_sched_scan_plan_interval;
7079 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
7080 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
7082 if (WARN_ON(i >= n_plans))
7085 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
7086 attr, nl80211_plan_policy, NULL);
7090 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
7093 request->scan_plans[i].interval =
7094 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
7095 if (!request->scan_plans[i].interval ||
7096 request->scan_plans[i].interval >
7097 wiphy->max_sched_scan_plan_interval)
7100 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
7101 request->scan_plans[i].iterations =
7102 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
7103 if (!request->scan_plans[i].iterations ||
7104 (request->scan_plans[i].iterations >
7105 wiphy->max_sched_scan_plan_iterations))
7107 } else if (i < n_plans - 1) {
7109 * All scan plans but the last one must specify
7110 * a finite number of iterations
7119 * The last scan plan must not specify the number of
7120 * iterations, it is supposed to run infinitely
7122 if (request->scan_plans[n_plans - 1].iterations)
7128 static struct cfg80211_sched_scan_request *
7129 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
7130 struct nlattr **attrs, int max_match_sets)
7132 struct cfg80211_sched_scan_request *request;
7133 struct nlattr *attr;
7134 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
7135 enum nl80211_band band;
7137 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
7138 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
7140 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
7141 return ERR_PTR(-EINVAL);
7143 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7144 n_channels = validate_scan_freqs(
7145 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
7147 return ERR_PTR(-EINVAL);
7149 n_channels = ieee80211_get_num_supported_channels(wiphy);
7152 if (attrs[NL80211_ATTR_SCAN_SSIDS])
7153 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7157 if (n_ssids > wiphy->max_sched_scan_ssids)
7158 return ERR_PTR(-EINVAL);
7161 * First, count the number of 'real' matchsets. Due to an issue with
7162 * the old implementation, matchsets containing only the RSSI attribute
7163 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
7164 * RSSI for all matchsets, rather than their own matchset for reporting
7165 * all APs with a strong RSSI. This is needed to be compatible with
7166 * older userspace that treated a matchset with only the RSSI as the
7167 * global RSSI for all other matchsets - if there are other matchsets.
7169 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7170 nla_for_each_nested(attr,
7171 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7173 struct nlattr *rssi;
7175 err = nla_parse_nested(tb,
7176 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7177 attr, nl80211_match_policy,
7180 return ERR_PTR(err);
7182 /* SSID and BSSID are mutually exclusive */
7183 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
7184 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
7185 return ERR_PTR(-EINVAL);
7187 /* add other standalone attributes here */
7188 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
7189 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
7193 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7195 default_match_rssi = nla_get_s32(rssi);
7199 /* However, if there's no other matchset, add the RSSI one */
7200 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7203 if (n_match_sets > max_match_sets)
7204 return ERR_PTR(-EINVAL);
7206 if (attrs[NL80211_ATTR_IE])
7207 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
7211 if (ie_len > wiphy->max_sched_scan_ie_len)
7212 return ERR_PTR(-EINVAL);
7214 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7216 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7217 * each scan plan already specifies its own interval
7219 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7220 return ERR_PTR(-EINVAL);
7222 nla_for_each_nested(attr,
7223 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7227 * The scan interval attribute is kept for backward
7228 * compatibility. If no scan plans are specified and sched scan
7229 * interval is specified, one scan plan will be set with this
7230 * scan interval and infinite number of iterations.
7232 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7233 return ERR_PTR(-EINVAL);
7238 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7239 return ERR_PTR(-EINVAL);
7241 if (!wiphy_ext_feature_isset(
7242 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7243 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7244 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7245 return ERR_PTR(-EINVAL);
7247 request = kzalloc(sizeof(*request)
7248 + sizeof(*request->ssids) * n_ssids
7249 + sizeof(*request->match_sets) * n_match_sets
7250 + sizeof(*request->scan_plans) * n_plans
7251 + sizeof(*request->channels) * n_channels
7252 + ie_len, GFP_KERNEL);
7254 return ERR_PTR(-ENOMEM);
7257 request->ssids = (void *)&request->channels[n_channels];
7258 request->n_ssids = n_ssids;
7261 request->ie = (void *)(request->ssids + n_ssids);
7263 request->ie = (void *)(request->channels + n_channels);
7268 request->match_sets = (void *)(request->ie + ie_len);
7270 request->match_sets =
7271 (void *)(request->ssids + n_ssids);
7273 request->match_sets =
7274 (void *)(request->channels + n_channels);
7276 request->n_match_sets = n_match_sets;
7279 request->scan_plans = (void *)(request->match_sets +
7281 else if (request->ie)
7282 request->scan_plans = (void *)(request->ie + ie_len);
7284 request->scan_plans = (void *)(request->ssids + n_ssids);
7286 request->scan_plans = (void *)(request->channels + n_channels);
7288 request->n_scan_plans = n_plans;
7291 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7292 /* user specified, bail out if channel not found */
7293 nla_for_each_nested(attr,
7294 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
7296 struct ieee80211_channel *chan;
7298 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7305 /* ignore disabled channels */
7306 if (chan->flags & IEEE80211_CHAN_DISABLED)
7309 request->channels[i] = chan;
7314 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7317 if (!wiphy->bands[band])
7319 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7320 struct ieee80211_channel *chan;
7322 chan = &wiphy->bands[band]->channels[j];
7324 if (chan->flags & IEEE80211_CHAN_DISABLED)
7327 request->channels[i] = chan;
7338 request->n_channels = i;
7342 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7344 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
7348 request->ssids[i].ssid_len = nla_len(attr);
7349 memcpy(request->ssids[i].ssid, nla_data(attr),
7356 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7357 nla_for_each_nested(attr,
7358 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7360 struct nlattr *ssid, *bssid, *rssi;
7362 err = nla_parse_nested(tb,
7363 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7364 attr, nl80211_match_policy,
7368 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
7369 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
7370 if (ssid || bssid) {
7371 if (WARN_ON(i >= n_match_sets)) {
7372 /* this indicates a programming error,
7373 * the loop above should have verified
7381 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7385 memcpy(request->match_sets[i].ssid.ssid,
7386 nla_data(ssid), nla_len(ssid));
7387 request->match_sets[i].ssid.ssid_len =
7391 if (nla_len(bssid) != ETH_ALEN) {
7395 memcpy(request->match_sets[i].bssid,
7396 nla_data(bssid), ETH_ALEN);
7399 /* special attribute - old implementation w/a */
7400 request->match_sets[i].rssi_thold =
7402 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7404 request->match_sets[i].rssi_thold =
7410 /* there was no other matchset, so the RSSI one is alone */
7411 if (i == 0 && n_match_sets)
7412 request->match_sets[0].rssi_thold = default_match_rssi;
7414 request->min_rssi_thold = INT_MAX;
7415 for (i = 0; i < n_match_sets; i++)
7416 request->min_rssi_thold =
7417 min(request->match_sets[i].rssi_thold,
7418 request->min_rssi_thold);
7420 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
7424 request->ie_len = ie_len;
7425 memcpy((void *)request->ie,
7426 nla_data(attrs[NL80211_ATTR_IE]),
7430 err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true);
7434 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7436 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7438 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7439 request->relative_rssi = nla_get_s8(
7440 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7441 request->relative_rssi_set = true;
7444 if (request->relative_rssi_set &&
7445 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7446 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7448 rssi_adjust = nla_data(
7449 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7450 request->rssi_adjust.band = rssi_adjust->band;
7451 request->rssi_adjust.delta = rssi_adjust->delta;
7452 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7458 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7462 request->scan_start = jiffies;
7468 return ERR_PTR(err);
7471 static int nl80211_start_sched_scan(struct sk_buff *skb,
7472 struct genl_info *info)
7474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7475 struct net_device *dev = info->user_ptr[1];
7476 struct wireless_dev *wdev = dev->ieee80211_ptr;
7477 struct cfg80211_sched_scan_request *sched_scan_req;
7481 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
7484 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
7485 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
7489 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7491 rdev->wiphy.max_match_sets);
7493 err = PTR_ERR_OR_ZERO(sched_scan_req);
7497 /* leave request id zero for legacy request
7498 * or if driver does not support multi-scheduled scan
7500 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
7501 while (!sched_scan_req->reqid)
7502 sched_scan_req->reqid = rdev->wiphy.cookie_counter++;
7505 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
7509 sched_scan_req->dev = dev;
7510 sched_scan_req->wiphy = &rdev->wiphy;
7512 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7513 sched_scan_req->owner_nlportid = info->snd_portid;
7515 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
7517 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
7521 kfree(sched_scan_req);
7526 static int nl80211_stop_sched_scan(struct sk_buff *skb,
7527 struct genl_info *info)
7529 struct cfg80211_sched_scan_request *req;
7530 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7533 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
7536 if (info->attrs[NL80211_ATTR_COOKIE]) {
7537 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7538 return __cfg80211_stop_sched_scan(rdev, cookie, false);
7541 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
7542 struct cfg80211_sched_scan_request,
7544 if (!req || req->reqid ||
7545 (req->owner_nlportid &&
7546 req->owner_nlportid != info->snd_portid))
7549 return cfg80211_stop_sched_scan_req(rdev, req, false);
7552 static int nl80211_start_radar_detection(struct sk_buff *skb,
7553 struct genl_info *info)
7555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7556 struct net_device *dev = info->user_ptr[1];
7557 struct wireless_dev *wdev = dev->ieee80211_ptr;
7558 struct wiphy *wiphy = wdev->wiphy;
7559 struct cfg80211_chan_def chandef;
7560 enum nl80211_dfs_regions dfs_region;
7561 unsigned int cac_time_ms;
7564 dfs_region = reg_get_dfs_region(wiphy);
7565 if (dfs_region == NL80211_DFS_UNSET)
7568 err = nl80211_parse_chandef(rdev, info, &chandef);
7572 if (netif_carrier_ok(dev))
7575 if (wdev->cac_started)
7578 err = cfg80211_chandef_dfs_required(wiphy, &chandef, wdev->iftype);
7585 if (!cfg80211_chandef_dfs_usable(wiphy, &chandef))
7588 /* CAC start is offloaded to HW and can't be started manually */
7589 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD))
7592 if (!rdev->ops->start_radar_detection)
7595 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7596 if (WARN_ON(!cac_time_ms))
7597 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7599 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
7601 wdev->chandef = chandef;
7602 wdev->cac_started = true;
7603 wdev->cac_start_time = jiffies;
7604 wdev->cac_time_ms = cac_time_ms;
7609 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7612 struct net_device *dev = info->user_ptr[1];
7613 struct wireless_dev *wdev = dev->ieee80211_ptr;
7614 struct cfg80211_csa_settings params;
7615 /* csa_attrs is defined static to avoid waste of stack size - this
7616 * function is called under RTNL lock, so this should not be a problem.
7618 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
7620 bool need_new_beacon = false;
7621 bool need_handle_dfs_flag = true;
7625 if (!rdev->ops->channel_switch ||
7626 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7629 switch (dev->ieee80211_ptr->iftype) {
7630 case NL80211_IFTYPE_AP:
7631 case NL80211_IFTYPE_P2P_GO:
7632 need_new_beacon = true;
7633 /* For all modes except AP the handle_dfs flag needs to be
7634 * supplied to tell the kernel that userspace will handle radar
7635 * events when they happen. Otherwise a switch to a channel
7636 * requiring DFS will be rejected.
7638 need_handle_dfs_flag = false;
7640 /* useless if AP is not running */
7641 if (!wdev->beacon_interval)
7644 case NL80211_IFTYPE_ADHOC:
7645 if (!wdev->ssid_len)
7648 case NL80211_IFTYPE_MESH_POINT:
7649 if (!wdev->mesh_id_len)
7656 memset(¶ms, 0, sizeof(params));
7658 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7659 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7662 /* only important for AP, IBSS and mesh create IEs internally */
7663 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
7666 /* Even though the attribute is u32, the specification says
7667 * u8, so let's make sure we don't overflow.
7669 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7673 params.count = cs_count;
7675 if (!need_new_beacon)
7678 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
7682 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7683 info->attrs[NL80211_ATTR_CSA_IES],
7684 nl80211_policy, info->extack);
7688 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
7692 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7695 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7696 if (!len || (len % sizeof(u16)))
7699 params.n_counter_offsets_beacon = len / sizeof(u16);
7700 if (rdev->wiphy.max_num_csa_counters &&
7701 (params.n_counter_offsets_beacon >
7702 rdev->wiphy.max_num_csa_counters))
7705 params.counter_offsets_beacon =
7706 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7708 /* sanity checks - counters should fit and be the same */
7709 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7710 u16 offset = params.counter_offsets_beacon[i];
7712 if (offset >= params.beacon_csa.tail_len)
7715 if (params.beacon_csa.tail[offset] != params.count)
7719 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
7720 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7721 if (!len || (len % sizeof(u16)))
7724 params.n_counter_offsets_presp = len / sizeof(u16);
7725 if (rdev->wiphy.max_num_csa_counters &&
7726 (params.n_counter_offsets_presp >
7727 rdev->wiphy.max_num_csa_counters))
7730 params.counter_offsets_presp =
7731 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7733 /* sanity checks - counters should fit and be the same */
7734 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7735 u16 offset = params.counter_offsets_presp[i];
7737 if (offset >= params.beacon_csa.probe_resp_len)
7740 if (params.beacon_csa.probe_resp[offset] !=
7747 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
7751 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
7755 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7762 params.radar_required = true;
7763 if (need_handle_dfs_flag &&
7764 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
7769 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7770 params.block_tx = true;
7773 err = rdev_channel_switch(rdev, dev, ¶ms);
7779 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7781 struct cfg80211_registered_device *rdev,
7782 struct wireless_dev *wdev,
7783 struct cfg80211_internal_bss *intbss)
7785 struct cfg80211_bss *res = &intbss->pub;
7786 const struct cfg80211_bss_ies *ies;
7790 ASSERT_WDEV_LOCK(wdev);
7792 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
7793 NL80211_CMD_NEW_SCAN_RESULTS);
7797 genl_dump_check_consistent(cb, hdr);
7799 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7800 goto nla_put_failure;
7802 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7803 goto nla_put_failure;
7804 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7806 goto nla_put_failure;
7808 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7810 goto nla_put_failure;
7811 if ((!is_zero_ether_addr(res->bssid) &&
7812 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
7813 goto nla_put_failure;
7816 /* indicate whether we have probe response data or not */
7817 if (rcu_access_pointer(res->proberesp_ies) &&
7818 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7819 goto fail_unlock_rcu;
7821 /* this pointer prefers to be pointed to probe response data
7822 * but is always valid
7824 ies = rcu_dereference(res->ies);
7826 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7828 goto fail_unlock_rcu;
7829 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7830 ies->len, ies->data))
7831 goto fail_unlock_rcu;
7834 /* and this pointer is always (unless driver didn't know) beacon data */
7835 ies = rcu_dereference(res->beacon_ies);
7836 if (ies && ies->from_beacon) {
7837 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7839 goto fail_unlock_rcu;
7840 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7841 ies->len, ies->data))
7842 goto fail_unlock_rcu;
7846 if (res->beacon_interval &&
7847 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7848 goto nla_put_failure;
7849 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7850 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
7851 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
7852 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7853 jiffies_to_msecs(jiffies - intbss->ts)))
7854 goto nla_put_failure;
7856 if (intbss->parent_tsf &&
7857 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7858 intbss->parent_tsf, NL80211_BSS_PAD) ||
7859 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7860 intbss->parent_bssid)))
7861 goto nla_put_failure;
7863 if (intbss->ts_boottime &&
7864 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7865 intbss->ts_boottime, NL80211_BSS_PAD))
7866 goto nla_put_failure;
7868 if (!nl80211_put_signal(msg, intbss->pub.chains,
7869 intbss->pub.chain_signal,
7870 NL80211_BSS_CHAIN_SIGNAL))
7871 goto nla_put_failure;
7873 switch (rdev->wiphy.signal_type) {
7874 case CFG80211_SIGNAL_TYPE_MBM:
7875 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7876 goto nla_put_failure;
7878 case CFG80211_SIGNAL_TYPE_UNSPEC:
7879 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7880 goto nla_put_failure;
7886 switch (wdev->iftype) {
7887 case NL80211_IFTYPE_P2P_CLIENT:
7888 case NL80211_IFTYPE_STATION:
7889 if (intbss == wdev->current_bss &&
7890 nla_put_u32(msg, NL80211_BSS_STATUS,
7891 NL80211_BSS_STATUS_ASSOCIATED))
7892 goto nla_put_failure;
7894 case NL80211_IFTYPE_ADHOC:
7895 if (intbss == wdev->current_bss &&
7896 nla_put_u32(msg, NL80211_BSS_STATUS,
7897 NL80211_BSS_STATUS_IBSS_JOINED))
7898 goto nla_put_failure;
7904 nla_nest_end(msg, bss);
7906 genlmsg_end(msg, hdr);
7912 genlmsg_cancel(msg, hdr);
7916 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
7918 struct cfg80211_registered_device *rdev;
7919 struct cfg80211_internal_bss *scan;
7920 struct wireless_dev *wdev;
7921 int start = cb->args[2], idx = 0;
7925 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7932 spin_lock_bh(&rdev->bss_lock);
7933 cfg80211_bss_expire(rdev);
7935 cb->seq = rdev->bss_generation;
7937 list_for_each_entry(scan, &rdev->bss_list, list) {
7940 if (nl80211_send_bss(skb, cb,
7941 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7942 rdev, wdev, scan) < 0) {
7948 spin_unlock_bh(&rdev->bss_lock);
7957 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
7958 int flags, struct net_device *dev,
7959 bool allow_radio_stats,
7960 struct survey_info *survey)
7963 struct nlattr *infoattr;
7965 /* skip radio stats if userspace didn't request them */
7966 if (!survey->channel && !allow_radio_stats)
7969 hdr = nl80211hdr_put(msg, portid, seq, flags,
7970 NL80211_CMD_NEW_SURVEY_RESULTS);
7974 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7975 goto nla_put_failure;
7977 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7979 goto nla_put_failure;
7981 if (survey->channel &&
7982 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
7983 survey->channel->center_freq))
7984 goto nla_put_failure;
7986 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7987 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7988 goto nla_put_failure;
7989 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7990 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7991 goto nla_put_failure;
7992 if ((survey->filled & SURVEY_INFO_TIME) &&
7993 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7994 survey->time, NL80211_SURVEY_INFO_PAD))
7995 goto nla_put_failure;
7996 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
7997 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7998 survey->time_busy, NL80211_SURVEY_INFO_PAD))
7999 goto nla_put_failure;
8000 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
8001 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
8002 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
8003 goto nla_put_failure;
8004 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
8005 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
8006 survey->time_rx, NL80211_SURVEY_INFO_PAD))
8007 goto nla_put_failure;
8008 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
8009 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
8010 survey->time_tx, NL80211_SURVEY_INFO_PAD))
8011 goto nla_put_failure;
8012 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
8013 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
8014 survey->time_scan, NL80211_SURVEY_INFO_PAD))
8015 goto nla_put_failure;
8017 nla_nest_end(msg, infoattr);
8019 genlmsg_end(msg, hdr);
8023 genlmsg_cancel(msg, hdr);
8027 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
8029 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8030 struct survey_info survey;
8031 struct cfg80211_registered_device *rdev;
8032 struct wireless_dev *wdev;
8033 int survey_idx = cb->args[2];
8038 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
8042 /* prepare_wdev_dump parsed the attributes */
8043 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
8045 if (!wdev->netdev) {
8050 if (!rdev->ops->dump_survey) {
8056 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
8062 /* don't send disabled channels, but do send non-channel data */
8063 if (survey.channel &&
8064 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
8069 if (nl80211_send_survey(skb,
8070 NETLINK_CB(cb->skb).portid,
8071 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8072 wdev->netdev, radio_stats, &survey) < 0)
8078 cb->args[2] = survey_idx;
8085 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
8087 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
8088 NL80211_WPA_VERSION_2));
8091 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
8093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8094 struct net_device *dev = info->user_ptr[1];
8095 struct ieee80211_channel *chan;
8096 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
8097 int err, ssid_len, ie_len = 0, auth_data_len = 0;
8098 enum nl80211_auth_type auth_type;
8099 struct key_parse key;
8100 bool local_state_change;
8102 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8105 if (!info->attrs[NL80211_ATTR_MAC])
8108 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
8111 if (!info->attrs[NL80211_ATTR_SSID])
8114 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8117 err = nl80211_parse_key(info, &key);
8122 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
8124 if (!key.p.key || !key.p.key_len)
8126 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
8127 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
8128 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
8129 key.p.key_len != WLAN_KEY_LEN_WEP104))
8142 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
8143 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
8152 if (!rdev->ops->auth)
8155 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8156 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8159 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8160 chan = nl80211_get_valid_chan(&rdev->wiphy,
8161 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8165 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8166 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8168 if (info->attrs[NL80211_ATTR_IE]) {
8169 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8170 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8173 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8174 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
8177 if ((auth_type == NL80211_AUTHTYPE_SAE ||
8178 auth_type == NL80211_AUTHTYPE_FILS_SK ||
8179 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
8180 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
8181 !info->attrs[NL80211_ATTR_AUTH_DATA])
8184 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
8185 if (auth_type != NL80211_AUTHTYPE_SAE &&
8186 auth_type != NL80211_AUTHTYPE_FILS_SK &&
8187 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
8188 auth_type != NL80211_AUTHTYPE_FILS_PK)
8190 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
8191 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
8192 /* need to include at least Auth Transaction and Status Code */
8193 if (auth_data_len < 4)
8197 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8200 * Since we no longer track auth state, ignore
8201 * requests to only change local state.
8203 if (local_state_change)
8206 wdev_lock(dev->ieee80211_ptr);
8207 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
8208 ssid, ssid_len, ie, ie_len,
8209 key.p.key, key.p.key_len, key.idx,
8210 auth_data, auth_data_len);
8211 wdev_unlock(dev->ieee80211_ptr);
8215 static int validate_pae_over_nl80211(struct cfg80211_registered_device *rdev,
8216 struct genl_info *info)
8218 if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8219 GENL_SET_ERR_MSG(info, "SOCKET_OWNER not set");
8223 if (!rdev->ops->tx_control_port ||
8224 !wiphy_ext_feature_isset(&rdev->wiphy,
8225 NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
8231 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
8232 struct genl_info *info,
8233 struct cfg80211_crypto_settings *settings,
8236 memset(settings, 0, sizeof(*settings));
8238 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8240 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8243 proto = nla_get_u16(
8244 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8245 settings->control_port_ethertype = cpu_to_be16(proto);
8246 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8249 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8250 settings->control_port_no_encrypt = true;
8252 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8254 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
8255 int r = validate_pae_over_nl80211(rdev, info);
8260 settings->control_port_over_nl80211 = true;
8263 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8267 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8268 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8269 settings->n_ciphers_pairwise = len / sizeof(u32);
8271 if (len % sizeof(u32))
8274 if (settings->n_ciphers_pairwise > cipher_limit)
8277 memcpy(settings->ciphers_pairwise, data, len);
8279 for (i = 0; i < settings->n_ciphers_pairwise; i++)
8280 if (!cfg80211_supported_cipher_suite(
8282 settings->ciphers_pairwise[i]))
8286 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8287 settings->cipher_group =
8288 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
8289 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8290 settings->cipher_group))
8294 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8295 settings->wpa_versions =
8296 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8297 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8301 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8305 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8306 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8307 settings->n_akm_suites = len / sizeof(u32);
8309 if (len % sizeof(u32))
8312 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8315 memcpy(settings->akm_suites, data, len);
8318 if (info->attrs[NL80211_ATTR_PMK]) {
8319 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
8321 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8322 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
8324 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
8330 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8333 struct net_device *dev = info->user_ptr[1];
8334 struct ieee80211_channel *chan;
8335 struct cfg80211_assoc_request req = {};
8336 const u8 *bssid, *ssid;
8337 int err, ssid_len = 0;
8339 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8342 if (!info->attrs[NL80211_ATTR_MAC] ||
8343 !info->attrs[NL80211_ATTR_SSID] ||
8344 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
8347 if (!rdev->ops->assoc)
8350 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8351 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8354 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8356 chan = nl80211_get_valid_chan(&rdev->wiphy,
8357 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8361 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8362 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8364 if (info->attrs[NL80211_ATTR_IE]) {
8365 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8366 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8369 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8370 enum nl80211_mfp mfp =
8371 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8372 if (mfp == NL80211_MFP_REQUIRED)
8374 else if (mfp != NL80211_MFP_NO)
8378 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8379 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8381 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8382 req.flags |= ASSOC_REQ_DISABLE_HT;
8384 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8385 memcpy(&req.ht_capa_mask,
8386 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8387 sizeof(req.ht_capa_mask));
8389 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8390 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8392 memcpy(&req.ht_capa,
8393 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8394 sizeof(req.ht_capa));
8397 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8398 req.flags |= ASSOC_REQ_DISABLE_VHT;
8400 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8401 memcpy(&req.vht_capa_mask,
8402 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8403 sizeof(req.vht_capa_mask));
8405 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8406 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8408 memcpy(&req.vht_capa,
8409 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8410 sizeof(req.vht_capa));
8413 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8414 if (!((rdev->wiphy.features &
8415 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8416 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8417 !wiphy_ext_feature_isset(&rdev->wiphy,
8418 NL80211_EXT_FEATURE_RRM))
8420 req.flags |= ASSOC_REQ_USE_RRM;
8423 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8424 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8425 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8426 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8429 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8432 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
8434 wdev_lock(dev->ieee80211_ptr);
8436 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8437 ssid, ssid_len, &req);
8439 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8440 dev->ieee80211_ptr->conn_owner_nlportid =
8442 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8446 wdev_unlock(dev->ieee80211_ptr);
8452 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8455 struct net_device *dev = info->user_ptr[1];
8456 const u8 *ie = NULL, *bssid;
8457 int ie_len = 0, err;
8459 bool local_state_change;
8461 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8464 if (!info->attrs[NL80211_ATTR_MAC])
8467 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8470 if (!rdev->ops->deauth)
8473 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8474 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8477 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8479 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8480 if (reason_code == 0) {
8481 /* Reason Code 0 is reserved */
8485 if (info->attrs[NL80211_ATTR_IE]) {
8486 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8487 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8490 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8492 wdev_lock(dev->ieee80211_ptr);
8493 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8494 local_state_change);
8495 wdev_unlock(dev->ieee80211_ptr);
8499 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8502 struct net_device *dev = info->user_ptr[1];
8503 const u8 *ie = NULL, *bssid;
8504 int ie_len = 0, err;
8506 bool local_state_change;
8508 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8511 if (!info->attrs[NL80211_ATTR_MAC])
8514 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8517 if (!rdev->ops->disassoc)
8520 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8521 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8524 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8526 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8527 if (reason_code == 0) {
8528 /* Reason Code 0 is reserved */
8532 if (info->attrs[NL80211_ATTR_IE]) {
8533 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8534 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8537 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8539 wdev_lock(dev->ieee80211_ptr);
8540 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8541 local_state_change);
8542 wdev_unlock(dev->ieee80211_ptr);
8547 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
8548 int mcast_rate[NUM_NL80211_BANDS],
8551 struct wiphy *wiphy = &rdev->wiphy;
8555 for (band = 0; band < NUM_NL80211_BANDS; band++) {
8556 struct ieee80211_supported_band *sband;
8558 sband = wiphy->bands[band];
8562 for (i = 0; i < sband->n_bitrates; i++) {
8563 if (sband->bitrates[i].bitrate == rateval) {
8564 mcast_rate[band] = i + 1;
8574 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8577 struct net_device *dev = info->user_ptr[1];
8578 struct cfg80211_ibss_params ibss;
8579 struct wiphy *wiphy;
8580 struct cfg80211_cached_keys *connkeys = NULL;
8583 memset(&ibss, 0, sizeof(ibss));
8585 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8588 if (!info->attrs[NL80211_ATTR_SSID] ||
8589 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8592 ibss.beacon_interval = 100;
8594 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8595 ibss.beacon_interval =
8596 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8598 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8599 ibss.beacon_interval);
8603 if (!rdev->ops->join_ibss)
8606 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8609 wiphy = &rdev->wiphy;
8611 if (info->attrs[NL80211_ATTR_MAC]) {
8612 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8614 if (!is_valid_ether_addr(ibss.bssid))
8617 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8618 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8620 if (info->attrs[NL80211_ATTR_IE]) {
8621 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8622 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8625 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8629 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8630 NL80211_IFTYPE_ADHOC))
8633 switch (ibss.chandef.width) {
8634 case NL80211_CHAN_WIDTH_5:
8635 case NL80211_CHAN_WIDTH_10:
8636 case NL80211_CHAN_WIDTH_20_NOHT:
8638 case NL80211_CHAN_WIDTH_20:
8639 case NL80211_CHAN_WIDTH_40:
8640 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8643 case NL80211_CHAN_WIDTH_80:
8644 case NL80211_CHAN_WIDTH_80P80:
8645 case NL80211_CHAN_WIDTH_160:
8646 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8648 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8649 NL80211_EXT_FEATURE_VHT_IBSS))
8656 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
8657 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8659 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8661 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8663 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8664 struct ieee80211_supported_band *sband =
8665 wiphy->bands[ibss.chandef.chan->band];
8667 err = ieee80211_get_ratemask(sband, rates, n_rates,
8673 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8674 memcpy(&ibss.ht_capa_mask,
8675 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8676 sizeof(ibss.ht_capa_mask));
8678 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8679 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8681 memcpy(&ibss.ht_capa,
8682 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8683 sizeof(ibss.ht_capa));
8686 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8687 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8688 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8691 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8694 connkeys = nl80211_parse_connkeys(rdev, info, &no_ht);
8695 if (IS_ERR(connkeys))
8696 return PTR_ERR(connkeys);
8698 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8706 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8708 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
8709 int r = validate_pae_over_nl80211(rdev, info);
8714 ibss.control_port_over_nl80211 = true;
8717 ibss.userspace_handles_dfs =
8718 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8720 wdev_lock(dev->ieee80211_ptr);
8721 err = __cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
8724 else if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
8725 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
8726 wdev_unlock(dev->ieee80211_ptr);
8731 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8733 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8734 struct net_device *dev = info->user_ptr[1];
8736 if (!rdev->ops->leave_ibss)
8739 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8742 return cfg80211_leave_ibss(rdev, dev, false);
8745 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8748 struct net_device *dev = info->user_ptr[1];
8749 int mcast_rate[NUM_NL80211_BANDS];
8753 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
8754 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8755 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
8758 if (!rdev->ops->set_mcast_rate)
8761 memset(mcast_rate, 0, sizeof(mcast_rate));
8763 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8766 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8767 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8770 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
8775 static struct sk_buff *
8776 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
8777 struct wireless_dev *wdev, int approxlen,
8778 u32 portid, u32 seq, enum nl80211_commands cmd,
8779 enum nl80211_attrs attr,
8780 const struct nl80211_vendor_cmd_info *info,
8783 struct sk_buff *skb;
8785 struct nlattr *data;
8787 skb = nlmsg_new(approxlen + 100, gfp);
8791 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8797 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8798 goto nla_put_failure;
8801 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8803 goto nla_put_failure;
8804 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8806 goto nla_put_failure;
8810 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8811 wdev_id(wdev), NL80211_ATTR_PAD))
8812 goto nla_put_failure;
8814 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8815 wdev->netdev->ifindex))
8816 goto nla_put_failure;
8819 data = nla_nest_start(skb, attr);
8821 goto nla_put_failure;
8823 ((void **)skb->cb)[0] = rdev;
8824 ((void **)skb->cb)[1] = hdr;
8825 ((void **)skb->cb)[2] = data;
8834 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
8835 struct wireless_dev *wdev,
8836 enum nl80211_commands cmd,
8837 enum nl80211_attrs attr,
8838 int vendor_event_idx,
8839 int approxlen, gfp_t gfp)
8841 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
8842 const struct nl80211_vendor_cmd_info *info;
8845 case NL80211_CMD_TESTMODE:
8846 if (WARN_ON(vendor_event_idx != -1))
8850 case NL80211_CMD_VENDOR:
8851 if (WARN_ON(vendor_event_idx < 0 ||
8852 vendor_event_idx >= wiphy->n_vendor_events))
8854 info = &wiphy->vendor_events[vendor_event_idx];
8861 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
8862 cmd, attr, info, gfp);
8864 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8866 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8868 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8869 void *hdr = ((void **)skb->cb)[1];
8870 struct nlattr *data = ((void **)skb->cb)[2];
8871 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8873 /* clear CB data for netlink core to own from now on */
8874 memset(skb->cb, 0, sizeof(skb->cb));
8876 nla_nest_end(skb, data);
8877 genlmsg_end(skb, hdr);
8879 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8880 mcgrp = NL80211_MCGRP_VENDOR;
8882 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8885 EXPORT_SYMBOL(__cfg80211_send_event_skb);
8887 #ifdef CONFIG_NL80211_TESTMODE
8888 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8891 struct wireless_dev *wdev =
8892 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8895 if (!rdev->ops->testmode_cmd)
8899 err = PTR_ERR(wdev);
8903 } else if (wdev->wiphy != &rdev->wiphy) {
8907 if (!info->attrs[NL80211_ATTR_TESTDATA])
8910 rdev->cur_cmd_info = info;
8911 err = rdev_testmode_cmd(rdev, wdev,
8912 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8913 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
8914 rdev->cur_cmd_info = NULL;
8919 static int nl80211_testmode_dump(struct sk_buff *skb,
8920 struct netlink_callback *cb)
8922 struct cfg80211_registered_device *rdev;
8932 * 0 is a valid index, but not valid for args[0],
8933 * so we need to offset by 1.
8935 phy_idx = cb->args[0] - 1;
8937 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8943 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8945 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8946 attrbuf, nl80211_fam.maxattr,
8947 nl80211_policy, NULL);
8951 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
8953 err = PTR_ERR(rdev);
8956 phy_idx = rdev->wiphy_idx;
8958 if (attrbuf[NL80211_ATTR_TESTDATA])
8959 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
8963 data = nla_data((void *)cb->args[1]);
8964 data_len = nla_len((void *)cb->args[1]);
8967 if (!rdev->ops->testmode_dump) {
8973 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
8974 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8975 NL80211_CMD_TESTMODE);
8976 struct nlattr *tmdata;
8981 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
8982 genlmsg_cancel(skb, hdr);
8986 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8988 genlmsg_cancel(skb, hdr);
8991 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
8992 nla_nest_end(skb, tmdata);
8994 if (err == -ENOBUFS || err == -ENOENT) {
8995 genlmsg_cancel(skb, hdr);
8998 genlmsg_cancel(skb, hdr);
9002 genlmsg_end(skb, hdr);
9007 cb->args[0] = phy_idx + 1;
9014 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
9016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9017 struct net_device *dev = info->user_ptr[1];
9018 struct cfg80211_connect_params connect;
9019 struct wiphy *wiphy;
9020 struct cfg80211_cached_keys *connkeys = NULL;
9023 memset(&connect, 0, sizeof(connect));
9025 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9028 if (!info->attrs[NL80211_ATTR_SSID] ||
9029 !nla_len(info->attrs[NL80211_ATTR_SSID]))
9032 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
9034 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
9035 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
9036 NL80211_CMD_CONNECT))
9039 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
9041 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
9043 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
9044 !wiphy_ext_feature_isset(&rdev->wiphy,
9045 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
9047 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
9049 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
9050 NL80211_MAX_NR_CIPHER_SUITES);
9054 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9055 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9058 wiphy = &rdev->wiphy;
9060 connect.bg_scan_period = -1;
9061 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
9062 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
9063 connect.bg_scan_period =
9064 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
9067 if (info->attrs[NL80211_ATTR_MAC])
9068 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9069 else if (info->attrs[NL80211_ATTR_MAC_HINT])
9070 connect.bssid_hint =
9071 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
9072 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9073 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9075 if (info->attrs[NL80211_ATTR_IE]) {
9076 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9077 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9080 if (info->attrs[NL80211_ATTR_USE_MFP]) {
9081 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
9082 if (connect.mfp == NL80211_MFP_OPTIONAL &&
9083 !wiphy_ext_feature_isset(&rdev->wiphy,
9084 NL80211_EXT_FEATURE_MFP_OPTIONAL))
9087 if (connect.mfp != NL80211_MFP_REQUIRED &&
9088 connect.mfp != NL80211_MFP_NO &&
9089 connect.mfp != NL80211_MFP_OPTIONAL)
9092 connect.mfp = NL80211_MFP_NO;
9095 if (info->attrs[NL80211_ATTR_PREV_BSSID])
9096 connect.prev_bssid =
9097 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
9099 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9100 connect.channel = nl80211_get_valid_chan(
9101 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
9102 if (!connect.channel)
9104 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
9105 connect.channel_hint = nl80211_get_valid_chan(
9106 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
9107 if (!connect.channel_hint)
9111 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
9112 connkeys = nl80211_parse_connkeys(rdev, info, NULL);
9113 if (IS_ERR(connkeys))
9114 return PTR_ERR(connkeys);
9117 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
9118 connect.flags |= ASSOC_REQ_DISABLE_HT;
9120 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
9121 memcpy(&connect.ht_capa_mask,
9122 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
9123 sizeof(connect.ht_capa_mask));
9125 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
9126 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
9130 memcpy(&connect.ht_capa,
9131 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
9132 sizeof(connect.ht_capa));
9135 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
9136 connect.flags |= ASSOC_REQ_DISABLE_VHT;
9138 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
9139 memcpy(&connect.vht_capa_mask,
9140 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
9141 sizeof(connect.vht_capa_mask));
9143 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
9144 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
9148 memcpy(&connect.vht_capa,
9149 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
9150 sizeof(connect.vht_capa));
9153 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
9154 if (!((rdev->wiphy.features &
9155 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
9156 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
9157 !wiphy_ext_feature_isset(&rdev->wiphy,
9158 NL80211_EXT_FEATURE_RRM)) {
9162 connect.flags |= ASSOC_REQ_USE_RRM;
9165 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
9166 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
9171 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
9172 /* bss selection makes no sense if bssid is set */
9173 if (connect.bssid) {
9178 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
9179 wiphy, &connect.bss_select);
9186 if (wiphy_ext_feature_isset(&rdev->wiphy,
9187 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
9188 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9189 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9190 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9191 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9192 connect.fils_erp_username =
9193 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9194 connect.fils_erp_username_len =
9195 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9196 connect.fils_erp_realm =
9197 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9198 connect.fils_erp_realm_len =
9199 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9200 connect.fils_erp_next_seq_num =
9202 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9203 connect.fils_erp_rrk =
9204 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9205 connect.fils_erp_rrk_len =
9206 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9207 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9208 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9209 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9210 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9215 if (nla_get_flag(info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])) {
9216 if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9218 GENL_SET_ERR_MSG(info,
9219 "external auth requires connection ownership");
9222 connect.flags |= CONNECT_REQ_EXTERNAL_AUTH_SUPPORT;
9225 wdev_lock(dev->ieee80211_ptr);
9227 err = cfg80211_connect(rdev, dev, &connect, connkeys,
9228 connect.prev_bssid);
9232 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9233 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9235 memcpy(dev->ieee80211_ptr->disconnect_bssid,
9236 connect.bssid, ETH_ALEN);
9238 memset(dev->ieee80211_ptr->disconnect_bssid,
9242 wdev_unlock(dev->ieee80211_ptr);
9247 static int nl80211_update_connect_params(struct sk_buff *skb,
9248 struct genl_info *info)
9250 struct cfg80211_connect_params connect = {};
9251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9252 struct net_device *dev = info->user_ptr[1];
9253 struct wireless_dev *wdev = dev->ieee80211_ptr;
9257 if (!rdev->ops->update_connect_params)
9260 if (info->attrs[NL80211_ATTR_IE]) {
9261 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9263 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9264 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9265 changed |= UPDATE_ASSOC_IES;
9268 wdev_lock(dev->ieee80211_ptr);
9269 if (!wdev->current_bss)
9272 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
9273 wdev_unlock(dev->ieee80211_ptr);
9278 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
9280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9281 struct net_device *dev = info->user_ptr[1];
9285 if (!info->attrs[NL80211_ATTR_REASON_CODE])
9286 reason = WLAN_REASON_DEAUTH_LEAVING;
9288 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
9293 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9294 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9297 wdev_lock(dev->ieee80211_ptr);
9298 ret = cfg80211_disconnect(rdev, dev, reason, true);
9299 wdev_unlock(dev->ieee80211_ptr);
9303 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
9305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9309 if (info->attrs[NL80211_ATTR_PID]) {
9310 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
9312 net = get_net_ns_by_pid(pid);
9313 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
9314 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
9316 net = get_net_ns_by_fd(fd);
9322 return PTR_ERR(net);
9326 /* check if anything to do */
9327 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9328 err = cfg80211_switch_netns(rdev, net);
9334 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9337 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9338 struct cfg80211_pmksa *pmksa) = NULL;
9339 struct net_device *dev = info->user_ptr[1];
9340 struct cfg80211_pmksa pmksa;
9342 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9344 if (!info->attrs[NL80211_ATTR_PMKID])
9347 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
9349 if (info->attrs[NL80211_ATTR_MAC]) {
9350 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9351 } else if (info->attrs[NL80211_ATTR_SSID] &&
9352 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
9353 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
9354 info->attrs[NL80211_ATTR_PMK])) {
9355 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9356 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9358 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
9362 if (info->attrs[NL80211_ATTR_PMK]) {
9363 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
9364 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
9367 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9368 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9371 switch (info->genlhdr->cmd) {
9372 case NL80211_CMD_SET_PMKSA:
9373 rdev_ops = rdev->ops->set_pmksa;
9375 case NL80211_CMD_DEL_PMKSA:
9376 rdev_ops = rdev->ops->del_pmksa;
9386 return rdev_ops(&rdev->wiphy, dev, &pmksa);
9389 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9392 struct net_device *dev = info->user_ptr[1];
9394 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9395 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9398 if (!rdev->ops->flush_pmksa)
9401 return rdev_flush_pmksa(rdev, dev);
9404 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9407 struct net_device *dev = info->user_ptr[1];
9408 u8 action_code, dialog_token;
9409 u32 peer_capability = 0;
9414 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9415 !rdev->ops->tdls_mgmt)
9418 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9419 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9420 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9421 !info->attrs[NL80211_ATTR_IE] ||
9422 !info->attrs[NL80211_ATTR_MAC])
9425 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9426 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9427 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9428 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
9429 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
9430 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9432 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
9434 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
9435 dialog_token, status_code, peer_capability,
9437 nla_data(info->attrs[NL80211_ATTR_IE]),
9438 nla_len(info->attrs[NL80211_ATTR_IE]));
9441 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9444 struct net_device *dev = info->user_ptr[1];
9445 enum nl80211_tdls_operation operation;
9448 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9449 !rdev->ops->tdls_oper)
9452 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9453 !info->attrs[NL80211_ATTR_MAC])
9456 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9457 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9459 return rdev_tdls_oper(rdev, dev, peer, operation);
9462 static int nl80211_remain_on_channel(struct sk_buff *skb,
9463 struct genl_info *info)
9465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9466 struct wireless_dev *wdev = info->user_ptr[1];
9467 struct cfg80211_chan_def chandef;
9468 const struct cfg80211_chan_def *compat_chandef;
9469 struct sk_buff *msg;
9475 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9476 !info->attrs[NL80211_ATTR_DURATION])
9479 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9481 if (!rdev->ops->remain_on_channel ||
9482 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9486 * We should be on that channel for at least a minimum amount of
9487 * time (10ms) but no longer than the driver supports.
9489 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9490 duration > rdev->wiphy.max_remain_on_channel_duration)
9493 err = nl80211_parse_chandef(rdev, info, &chandef);
9498 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9499 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9500 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9502 if (compat_chandef != &chandef) {
9509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9513 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9514 NL80211_CMD_REMAIN_ON_CHANNEL);
9520 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9526 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9528 goto nla_put_failure;
9530 genlmsg_end(msg, hdr);
9532 return genlmsg_reply(msg, info);
9541 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9542 struct genl_info *info)
9544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9545 struct wireless_dev *wdev = info->user_ptr[1];
9548 if (!info->attrs[NL80211_ATTR_COOKIE])
9551 if (!rdev->ops->cancel_remain_on_channel)
9554 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9556 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9559 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9560 struct genl_info *info)
9562 struct cfg80211_bitrate_mask mask;
9563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9564 struct net_device *dev = info->user_ptr[1];
9567 if (!rdev->ops->set_bitrate_mask)
9570 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9574 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
9577 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
9579 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9580 struct wireless_dev *wdev = info->user_ptr[1];
9581 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
9583 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9586 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9587 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
9589 switch (wdev->iftype) {
9590 case NL80211_IFTYPE_STATION:
9591 case NL80211_IFTYPE_ADHOC:
9592 case NL80211_IFTYPE_P2P_CLIENT:
9593 case NL80211_IFTYPE_AP:
9594 case NL80211_IFTYPE_AP_VLAN:
9595 case NL80211_IFTYPE_MESH_POINT:
9596 case NL80211_IFTYPE_P2P_GO:
9597 case NL80211_IFTYPE_P2P_DEVICE:
9599 case NL80211_IFTYPE_NAN:
9604 /* not much point in registering if we can't reply */
9605 if (!rdev->ops->mgmt_tx)
9608 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
9609 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9610 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
9613 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
9615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9616 struct wireless_dev *wdev = info->user_ptr[1];
9617 struct cfg80211_chan_def chandef;
9621 struct sk_buff *msg = NULL;
9622 struct cfg80211_mgmt_tx_params params = {
9623 .dont_wait_for_ack =
9624 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9627 if (!info->attrs[NL80211_ATTR_FRAME])
9630 if (!rdev->ops->mgmt_tx)
9633 switch (wdev->iftype) {
9634 case NL80211_IFTYPE_P2P_DEVICE:
9635 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9637 case NL80211_IFTYPE_STATION:
9638 case NL80211_IFTYPE_ADHOC:
9639 case NL80211_IFTYPE_P2P_CLIENT:
9640 case NL80211_IFTYPE_AP:
9641 case NL80211_IFTYPE_AP_VLAN:
9642 case NL80211_IFTYPE_MESH_POINT:
9643 case NL80211_IFTYPE_P2P_GO:
9645 case NL80211_IFTYPE_NAN:
9650 if (info->attrs[NL80211_ATTR_DURATION]) {
9651 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9653 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9656 * We should wait on the channel for at least a minimum amount
9657 * of time (10ms) but no longer than the driver supports.
9659 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9660 params.wait > rdev->wiphy.max_remain_on_channel_duration)
9664 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
9666 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9669 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
9671 /* get the channel if any has been specified, otherwise pass NULL to
9672 * the driver. The latter will use the current one
9674 chandef.chan = NULL;
9675 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9676 err = nl80211_parse_chandef(rdev, info, &chandef);
9681 if (!chandef.chan && params.offchan)
9685 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
9691 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9692 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9694 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9695 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9698 if (len % sizeof(u16))
9701 params.n_csa_offsets = len / sizeof(u16);
9702 params.csa_offsets =
9703 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9705 /* check that all the offsets fit the frame */
9706 for (i = 0; i < params.n_csa_offsets; i++) {
9707 if (params.csa_offsets[i] >= params.len)
9712 if (!params.dont_wait_for_ack) {
9713 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9717 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9725 params.chan = chandef.chan;
9726 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
9731 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9733 goto nla_put_failure;
9735 genlmsg_end(msg, hdr);
9736 return genlmsg_reply(msg, info);
9748 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9751 struct wireless_dev *wdev = info->user_ptr[1];
9754 if (!info->attrs[NL80211_ATTR_COOKIE])
9757 if (!rdev->ops->mgmt_tx_cancel_wait)
9760 switch (wdev->iftype) {
9761 case NL80211_IFTYPE_STATION:
9762 case NL80211_IFTYPE_ADHOC:
9763 case NL80211_IFTYPE_P2P_CLIENT:
9764 case NL80211_IFTYPE_AP:
9765 case NL80211_IFTYPE_AP_VLAN:
9766 case NL80211_IFTYPE_P2P_GO:
9767 case NL80211_IFTYPE_P2P_DEVICE:
9769 case NL80211_IFTYPE_NAN:
9774 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9776 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
9779 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9782 struct wireless_dev *wdev;
9783 struct net_device *dev = info->user_ptr[1];
9788 if (!info->attrs[NL80211_ATTR_PS_STATE])
9791 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9793 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9796 wdev = dev->ieee80211_ptr;
9798 if (!rdev->ops->set_power_mgmt)
9801 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9803 if (state == wdev->ps)
9806 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
9812 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9815 enum nl80211_ps_state ps_state;
9816 struct wireless_dev *wdev;
9817 struct net_device *dev = info->user_ptr[1];
9818 struct sk_buff *msg;
9822 wdev = dev->ieee80211_ptr;
9824 if (!rdev->ops->set_power_mgmt)
9827 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9831 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9832 NL80211_CMD_GET_POWER_SAVE);
9839 ps_state = NL80211_PS_ENABLED;
9841 ps_state = NL80211_PS_DISABLED;
9843 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9844 goto nla_put_failure;
9846 genlmsg_end(msg, hdr);
9847 return genlmsg_reply(msg, info);
9856 static const struct nla_policy
9857 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
9858 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
9859 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9860 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
9861 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9862 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9863 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
9864 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
9867 static int nl80211_set_cqm_txe(struct genl_info *info,
9868 u32 rate, u32 pkts, u32 intvl)
9870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9871 struct net_device *dev = info->user_ptr[1];
9872 struct wireless_dev *wdev = dev->ieee80211_ptr;
9874 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
9877 if (!rdev->ops->set_cqm_txe_config)
9880 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9881 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9884 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
9887 static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
9888 struct net_device *dev)
9890 struct wireless_dev *wdev = dev->ieee80211_ptr;
9891 s32 last, low, high;
9896 /* RSSI reporting disabled? */
9897 if (!wdev->cqm_config)
9898 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
9901 * Obtain current RSSI value if possible, if not and no RSSI threshold
9902 * event has been received yet, we should receive an event after a
9903 * connection is established and enough beacons received to calculate
9906 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
9907 rdev->ops->get_station) {
9908 struct station_info sinfo = {};
9911 mac_addr = wdev->current_bss->pub.bssid;
9913 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
9917 if (sinfo.filled & BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
9918 wdev->cqm_config->last_rssi_event_value =
9919 (s8) sinfo.rx_beacon_signal_avg;
9922 last = wdev->cqm_config->last_rssi_event_value;
9923 hyst = wdev->cqm_config->rssi_hyst;
9924 n = wdev->cqm_config->n_rssi_thresholds;
9926 for (i = 0; i < n; i++)
9927 if (last < wdev->cqm_config->rssi_thresholds[i])
9931 (wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN;
9933 (wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX;
9935 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
9938 static int nl80211_set_cqm_rssi(struct genl_info *info,
9939 const s32 *thresholds, int n_thresholds,
9942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9943 struct net_device *dev = info->user_ptr[1];
9944 struct wireless_dev *wdev = dev->ieee80211_ptr;
9948 /* Check all values negative and sorted */
9949 for (i = 0; i < n_thresholds; i++) {
9950 if (thresholds[i] > 0 || thresholds[i] <= prev)
9953 prev = thresholds[i];
9956 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9957 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9961 cfg80211_cqm_config_free(wdev);
9964 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
9965 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
9966 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
9968 return rdev_set_cqm_rssi_config(rdev, dev,
9969 thresholds[0], hysteresis);
9972 if (!wiphy_ext_feature_isset(&rdev->wiphy,
9973 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
9976 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
9981 struct cfg80211_cqm_config *cqm_config;
9983 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
9984 n_thresholds * sizeof(s32), GFP_KERNEL);
9990 cqm_config->rssi_hyst = hysteresis;
9991 cqm_config->n_rssi_thresholds = n_thresholds;
9992 memcpy(cqm_config->rssi_thresholds, thresholds,
9993 n_thresholds * sizeof(s32));
9995 wdev->cqm_config = cqm_config;
9998 err = cfg80211_cqm_rssi_update(rdev, dev);
10006 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
10008 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
10009 struct nlattr *cqm;
10012 cqm = info->attrs[NL80211_ATTR_CQM];
10016 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
10017 nl80211_attr_cqm_policy, info->extack);
10021 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
10022 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
10023 const s32 *thresholds =
10024 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
10025 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
10026 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
10031 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
10035 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
10036 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
10037 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
10038 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
10039 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
10040 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
10042 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
10048 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
10050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10051 struct net_device *dev = info->user_ptr[1];
10052 struct ocb_setup setup = {};
10055 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10059 return cfg80211_join_ocb(rdev, dev, &setup);
10062 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
10064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10065 struct net_device *dev = info->user_ptr[1];
10067 return cfg80211_leave_ocb(rdev, dev);
10070 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
10072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10073 struct net_device *dev = info->user_ptr[1];
10074 struct mesh_config cfg;
10075 struct mesh_setup setup;
10078 /* start with default */
10079 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
10080 memcpy(&setup, &default_mesh_setup, sizeof(setup));
10082 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
10083 /* and parse parameters if given */
10084 err = nl80211_parse_mesh_config(info, &cfg, NULL);
10089 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
10090 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
10093 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
10094 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
10096 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
10097 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
10098 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
10101 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
10102 setup.beacon_interval =
10103 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
10105 err = cfg80211_validate_beacon_int(rdev,
10106 NL80211_IFTYPE_MESH_POINT,
10107 setup.beacon_interval);
10112 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
10113 setup.dtim_period =
10114 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
10115 if (setup.dtim_period < 1 || setup.dtim_period > 100)
10119 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
10120 /* parse additional setup parameters if given */
10121 err = nl80211_parse_mesh_setup(info, &setup);
10126 if (setup.user_mpm)
10127 cfg.auto_open_plinks = false;
10129 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
10130 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10134 /* __cfg80211_join_mesh() will sort it out */
10135 setup.chandef.chan = NULL;
10138 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
10139 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10141 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10142 struct ieee80211_supported_band *sband;
10144 if (!setup.chandef.chan)
10147 sband = rdev->wiphy.bands[setup.chandef.chan->band];
10149 err = ieee80211_get_ratemask(sband, rates, n_rates,
10150 &setup.basic_rates);
10155 if (info->attrs[NL80211_ATTR_TX_RATES]) {
10156 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
10160 if (!setup.chandef.chan)
10163 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
10164 &setup.beacon_rate);
10169 setup.userspace_handles_dfs =
10170 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
10172 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
10173 int r = validate_pae_over_nl80211(rdev, info);
10178 setup.control_port_over_nl80211 = true;
10181 wdev_lock(dev->ieee80211_ptr);
10182 err = __cfg80211_join_mesh(rdev, dev, &setup, &cfg);
10183 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER])
10184 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
10185 wdev_unlock(dev->ieee80211_ptr);
10190 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
10192 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10193 struct net_device *dev = info->user_ptr[1];
10195 return cfg80211_leave_mesh(rdev, dev);
10199 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
10200 struct cfg80211_registered_device *rdev)
10202 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
10203 struct nlattr *nl_pats, *nl_pat;
10206 if (!wowlan->n_patterns)
10209 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
10213 for (i = 0; i < wowlan->n_patterns; i++) {
10214 nl_pat = nla_nest_start(msg, i + 1);
10217 pat_len = wowlan->patterns[i].pattern_len;
10218 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
10219 wowlan->patterns[i].mask) ||
10220 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10221 wowlan->patterns[i].pattern) ||
10222 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10223 wowlan->patterns[i].pkt_offset))
10225 nla_nest_end(msg, nl_pat);
10227 nla_nest_end(msg, nl_pats);
10232 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
10233 struct cfg80211_wowlan_tcp *tcp)
10235 struct nlattr *nl_tcp;
10240 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
10244 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
10245 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
10246 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
10247 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
10248 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
10249 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
10250 tcp->payload_len, tcp->payload) ||
10251 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
10252 tcp->data_interval) ||
10253 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
10254 tcp->wake_len, tcp->wake_data) ||
10255 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
10256 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
10259 if (tcp->payload_seq.len &&
10260 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
10261 sizeof(tcp->payload_seq), &tcp->payload_seq))
10264 if (tcp->payload_tok.len &&
10265 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
10266 sizeof(tcp->payload_tok) + tcp->tokens_size,
10267 &tcp->payload_tok))
10270 nla_nest_end(msg, nl_tcp);
10275 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
10276 struct cfg80211_sched_scan_request *req)
10278 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
10284 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
10288 if (req->n_scan_plans == 1 &&
10289 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
10290 req->scan_plans[0].interval * 1000))
10293 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
10296 if (req->relative_rssi_set) {
10297 struct nl80211_bss_select_rssi_adjust rssi_adjust;
10299 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
10300 req->relative_rssi))
10303 rssi_adjust.band = req->rssi_adjust.band;
10304 rssi_adjust.delta = req->rssi_adjust.delta;
10305 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
10306 sizeof(rssi_adjust), &rssi_adjust))
10310 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10314 for (i = 0; i < req->n_channels; i++) {
10315 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10319 nla_nest_end(msg, freqs);
10321 if (req->n_match_sets) {
10322 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
10326 for (i = 0; i < req->n_match_sets; i++) {
10327 match = nla_nest_start(msg, i);
10331 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
10332 req->match_sets[i].ssid.ssid_len,
10333 req->match_sets[i].ssid.ssid))
10335 nla_nest_end(msg, match);
10337 nla_nest_end(msg, matches);
10340 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
10344 for (i = 0; i < req->n_scan_plans; i++) {
10345 scan_plan = nla_nest_start(msg, i + 1);
10350 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10351 req->scan_plans[i].interval) ||
10352 (req->scan_plans[i].iterations &&
10353 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10354 req->scan_plans[i].iterations)))
10356 nla_nest_end(msg, scan_plan);
10358 nla_nest_end(msg, scan_plans);
10360 nla_nest_end(msg, nd);
10365 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10368 struct sk_buff *msg;
10370 u32 size = NLMSG_DEFAULT_SIZE;
10372 if (!rdev->wiphy.wowlan)
10373 return -EOPNOTSUPP;
10375 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
10376 /* adjust size to have room for all the data */
10377 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10378 rdev->wiphy.wowlan_config->tcp->payload_len +
10379 rdev->wiphy.wowlan_config->tcp->wake_len +
10380 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
10383 msg = nlmsg_new(size, GFP_KERNEL);
10387 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10388 NL80211_CMD_GET_WOWLAN);
10390 goto nla_put_failure;
10392 if (rdev->wiphy.wowlan_config) {
10393 struct nlattr *nl_wowlan;
10395 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10397 goto nla_put_failure;
10399 if ((rdev->wiphy.wowlan_config->any &&
10400 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
10401 (rdev->wiphy.wowlan_config->disconnect &&
10402 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
10403 (rdev->wiphy.wowlan_config->magic_pkt &&
10404 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
10405 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
10406 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
10407 (rdev->wiphy.wowlan_config->eap_identity_req &&
10408 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
10409 (rdev->wiphy.wowlan_config->four_way_handshake &&
10410 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
10411 (rdev->wiphy.wowlan_config->rfkill_release &&
10412 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10413 goto nla_put_failure;
10415 if (nl80211_send_wowlan_patterns(msg, rdev))
10416 goto nla_put_failure;
10418 if (nl80211_send_wowlan_tcp(msg,
10419 rdev->wiphy.wowlan_config->tcp))
10420 goto nla_put_failure;
10422 if (nl80211_send_wowlan_nd(
10424 rdev->wiphy.wowlan_config->nd_config))
10425 goto nla_put_failure;
10427 nla_nest_end(msg, nl_wowlan);
10430 genlmsg_end(msg, hdr);
10431 return genlmsg_reply(msg, info);
10438 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10439 struct nlattr *attr,
10440 struct cfg80211_wowlan *trig)
10442 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10443 struct cfg80211_wowlan_tcp *cfg;
10444 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10445 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10447 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10450 if (!rdev->wiphy.wowlan->tcp)
10453 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
10454 nl80211_wowlan_tcp_policy, NULL);
10458 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10459 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10460 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10461 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10462 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10463 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10464 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10465 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10468 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
10469 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
10472 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
10473 rdev->wiphy.wowlan->tcp->data_interval_max ||
10474 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
10477 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
10478 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
10481 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10482 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10485 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10486 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10488 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10489 tokens_size = tokln - sizeof(*tok);
10491 if (!tok->len || tokens_size % tok->len)
10493 if (!rdev->wiphy.wowlan->tcp->tok)
10495 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
10497 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
10499 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
10501 if (tok->offset + tok->len > data_size)
10505 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10506 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
10507 if (!rdev->wiphy.wowlan->tcp->seq)
10509 if (seq->len == 0 || seq->len > 4)
10511 if (seq->len + seq->offset > data_size)
10515 size = sizeof(*cfg);
10517 size += wake_size + wake_mask_size;
10518 size += tokens_size;
10520 cfg = kzalloc(size, GFP_KERNEL);
10523 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10524 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
10525 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10527 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10528 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10532 /* allocate a socket and port for it and use it */
10533 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10534 IPPROTO_TCP, &cfg->sock, 1);
10539 if (inet_csk_get_port(cfg->sock->sk, port)) {
10540 sock_release(cfg->sock);
10542 return -EADDRINUSE;
10544 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10550 cfg->src_port = port;
10553 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10554 cfg->payload_len = data_size;
10555 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10556 memcpy((void *)cfg->payload,
10557 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10560 cfg->payload_seq = *seq;
10561 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10562 cfg->wake_len = wake_size;
10563 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10564 memcpy((void *)cfg->wake_data,
10565 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10567 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10568 data_size + wake_size;
10569 memcpy((void *)cfg->wake_mask,
10570 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10573 cfg->tokens_size = tokens_size;
10574 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10582 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10583 const struct wiphy_wowlan_support *wowlan,
10584 struct nlattr *attr,
10585 struct cfg80211_wowlan *trig)
10587 struct nlattr **tb;
10590 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10594 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10599 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10604 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10605 wowlan->max_nd_match_sets);
10606 err = PTR_ERR_OR_ZERO(trig->nd_config);
10608 trig->nd_config = NULL;
10615 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10617 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10618 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
10619 struct cfg80211_wowlan new_triggers = {};
10620 struct cfg80211_wowlan *ntrig;
10621 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
10623 bool prev_enabled = rdev->wiphy.wowlan_config;
10624 bool regular = false;
10627 return -EOPNOTSUPP;
10629 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10630 cfg80211_rdev_free_wowlan(rdev);
10631 rdev->wiphy.wowlan_config = NULL;
10635 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10636 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
10637 nl80211_wowlan_policy, info->extack);
10641 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10642 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10644 new_triggers.any = true;
10647 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10648 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10650 new_triggers.disconnect = true;
10654 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10655 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10657 new_triggers.magic_pkt = true;
10661 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10664 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10665 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10667 new_triggers.gtk_rekey_failure = true;
10671 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10672 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10674 new_triggers.eap_identity_req = true;
10678 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10679 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10681 new_triggers.four_way_handshake = true;
10685 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10686 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10688 new_triggers.rfkill_release = true;
10692 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10693 struct nlattr *pat;
10694 int n_patterns = 0;
10695 int rem, pat_len, mask_len, pkt_offset;
10696 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10700 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10703 if (n_patterns > wowlan->n_patterns)
10706 new_triggers.patterns = kcalloc(n_patterns,
10707 sizeof(new_triggers.patterns[0]),
10709 if (!new_triggers.patterns)
10712 new_triggers.n_patterns = n_patterns;
10715 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10719 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10720 nl80211_packet_pattern_policy,
10723 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10724 !pat_tb[NL80211_PKTPAT_PATTERN])
10726 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10727 mask_len = DIV_ROUND_UP(pat_len, 8);
10728 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10730 if (pat_len > wowlan->pattern_max_len ||
10731 pat_len < wowlan->pattern_min_len)
10734 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10737 pkt_offset = nla_get_u32(
10738 pat_tb[NL80211_PKTPAT_OFFSET]);
10739 if (pkt_offset > wowlan->max_pkt_offset)
10741 new_triggers.patterns[i].pkt_offset = pkt_offset;
10743 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10748 new_triggers.patterns[i].mask = mask_pat;
10749 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10751 mask_pat += mask_len;
10752 new_triggers.patterns[i].pattern = mask_pat;
10753 new_triggers.patterns[i].pattern_len = pat_len;
10755 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10761 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
10763 err = nl80211_parse_wowlan_tcp(
10764 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10770 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
10772 err = nl80211_parse_wowlan_nd(
10773 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10779 /* The 'any' trigger means the device continues operating more or less
10780 * as in its normal operation mode and wakes up the host on most of the
10781 * normal interrupts (like packet RX, ...)
10782 * It therefore makes little sense to combine with the more constrained
10783 * wakeup trigger modes.
10785 if (new_triggers.any && regular) {
10790 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10795 cfg80211_rdev_free_wowlan(rdev);
10796 rdev->wiphy.wowlan_config = ntrig;
10799 if (rdev->ops->set_wakeup &&
10800 prev_enabled != !!rdev->wiphy.wowlan_config)
10801 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
10805 for (i = 0; i < new_triggers.n_patterns; i++)
10806 kfree(new_triggers.patterns[i].mask);
10807 kfree(new_triggers.patterns);
10808 if (new_triggers.tcp && new_triggers.tcp->sock)
10809 sock_release(new_triggers.tcp->sock);
10810 kfree(new_triggers.tcp);
10811 kfree(new_triggers.nd_config);
10816 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10817 struct cfg80211_registered_device *rdev)
10819 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10821 struct cfg80211_coalesce_rules *rule;
10823 if (!rdev->coalesce->n_rules)
10826 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10830 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10831 nl_rule = nla_nest_start(msg, i + 1);
10835 rule = &rdev->coalesce->rules[i];
10836 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10840 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10844 nl_pats = nla_nest_start(msg,
10845 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10849 for (j = 0; j < rule->n_patterns; j++) {
10850 nl_pat = nla_nest_start(msg, j + 1);
10853 pat_len = rule->patterns[j].pattern_len;
10854 if (nla_put(msg, NL80211_PKTPAT_MASK,
10855 DIV_ROUND_UP(pat_len, 8),
10856 rule->patterns[j].mask) ||
10857 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10858 rule->patterns[j].pattern) ||
10859 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10860 rule->patterns[j].pkt_offset))
10862 nla_nest_end(msg, nl_pat);
10864 nla_nest_end(msg, nl_pats);
10865 nla_nest_end(msg, nl_rule);
10867 nla_nest_end(msg, nl_rules);
10872 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10875 struct sk_buff *msg;
10878 if (!rdev->wiphy.coalesce)
10879 return -EOPNOTSUPP;
10881 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10885 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10886 NL80211_CMD_GET_COALESCE);
10888 goto nla_put_failure;
10890 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10891 goto nla_put_failure;
10893 genlmsg_end(msg, hdr);
10894 return genlmsg_reply(msg, info);
10901 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10903 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10905 struct cfg80211_coalesce_rules *rule;
10910 for (i = 0; i < coalesce->n_rules; i++) {
10911 rule = &coalesce->rules[i];
10912 for (j = 0; j < rule->n_patterns; j++)
10913 kfree(rule->patterns[j].mask);
10914 kfree(rule->patterns);
10916 kfree(coalesce->rules);
10918 rdev->coalesce = NULL;
10921 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10922 struct nlattr *rule,
10923 struct cfg80211_coalesce_rules *new_rule)
10926 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10927 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10928 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10929 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10931 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
10932 nl80211_coalesce_policy, NULL);
10936 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10938 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10939 if (new_rule->delay > coalesce->max_delay)
10942 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10943 new_rule->condition =
10944 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10945 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10946 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10949 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10952 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10955 if (n_patterns > coalesce->n_patterns)
10958 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10960 if (!new_rule->patterns)
10963 new_rule->n_patterns = n_patterns;
10966 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10970 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10971 nl80211_packet_pattern_policy, NULL);
10972 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10973 !pat_tb[NL80211_PKTPAT_PATTERN])
10975 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10976 mask_len = DIV_ROUND_UP(pat_len, 8);
10977 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10979 if (pat_len > coalesce->pattern_max_len ||
10980 pat_len < coalesce->pattern_min_len)
10983 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10986 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10987 if (pkt_offset > coalesce->max_pkt_offset)
10989 new_rule->patterns[i].pkt_offset = pkt_offset;
10991 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10995 new_rule->patterns[i].mask = mask_pat;
10996 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10999 mask_pat += mask_len;
11000 new_rule->patterns[i].pattern = mask_pat;
11001 new_rule->patterns[i].pattern_len = pat_len;
11002 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
11010 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
11012 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11013 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
11014 struct cfg80211_coalesce new_coalesce = {};
11015 struct cfg80211_coalesce *n_coalesce;
11016 int err, rem_rule, n_rules = 0, i, j;
11017 struct nlattr *rule;
11018 struct cfg80211_coalesce_rules *tmp_rule;
11020 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
11021 return -EOPNOTSUPP;
11023 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
11024 cfg80211_rdev_free_coalesce(rdev);
11025 rdev_set_coalesce(rdev, NULL);
11029 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
11032 if (n_rules > coalesce->n_rules)
11035 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
11037 if (!new_coalesce.rules)
11040 new_coalesce.n_rules = n_rules;
11043 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
11045 err = nl80211_parse_coalesce_rule(rdev, rule,
11046 &new_coalesce.rules[i]);
11053 err = rdev_set_coalesce(rdev, &new_coalesce);
11057 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
11062 cfg80211_rdev_free_coalesce(rdev);
11063 rdev->coalesce = n_coalesce;
11067 for (i = 0; i < new_coalesce.n_rules; i++) {
11068 tmp_rule = &new_coalesce.rules[i];
11069 for (j = 0; j < tmp_rule->n_patterns; j++)
11070 kfree(tmp_rule->patterns[j].mask);
11071 kfree(tmp_rule->patterns);
11073 kfree(new_coalesce.rules);
11078 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
11080 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11081 struct net_device *dev = info->user_ptr[1];
11082 struct wireless_dev *wdev = dev->ieee80211_ptr;
11083 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
11084 struct cfg80211_gtk_rekey_data rekey_data;
11087 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
11090 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
11091 info->attrs[NL80211_ATTR_REKEY_DATA],
11092 nl80211_rekey_policy, info->extack);
11096 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
11097 !tb[NL80211_REKEY_DATA_KCK])
11099 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
11101 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
11103 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
11106 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
11107 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
11108 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
11111 if (!wdev->current_bss) {
11116 if (!rdev->ops->set_rekey_data) {
11121 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
11127 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
11128 struct genl_info *info)
11130 struct net_device *dev = info->user_ptr[1];
11131 struct wireless_dev *wdev = dev->ieee80211_ptr;
11133 if (wdev->iftype != NL80211_IFTYPE_AP &&
11134 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11137 if (wdev->ap_unexpected_nlportid)
11140 wdev->ap_unexpected_nlportid = info->snd_portid;
11144 static int nl80211_probe_client(struct sk_buff *skb,
11145 struct genl_info *info)
11147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11148 struct net_device *dev = info->user_ptr[1];
11149 struct wireless_dev *wdev = dev->ieee80211_ptr;
11150 struct sk_buff *msg;
11156 if (wdev->iftype != NL80211_IFTYPE_AP &&
11157 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11158 return -EOPNOTSUPP;
11160 if (!info->attrs[NL80211_ATTR_MAC])
11163 if (!rdev->ops->probe_client)
11164 return -EOPNOTSUPP;
11166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11170 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11171 NL80211_CMD_PROBE_CLIENT);
11177 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11179 err = rdev_probe_client(rdev, dev, addr, &cookie);
11183 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11185 goto nla_put_failure;
11187 genlmsg_end(msg, hdr);
11189 return genlmsg_reply(msg, info);
11198 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
11200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11201 struct cfg80211_beacon_registration *reg, *nreg;
11204 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
11205 return -EOPNOTSUPP;
11207 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
11211 /* First, check if already registered. */
11212 spin_lock_bh(&rdev->beacon_registrations_lock);
11213 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11214 if (reg->nlportid == info->snd_portid) {
11219 /* Add it to the list */
11220 nreg->nlportid = info->snd_portid;
11221 list_add(&nreg->list, &rdev->beacon_registrations);
11223 spin_unlock_bh(&rdev->beacon_registrations_lock);
11227 spin_unlock_bh(&rdev->beacon_registrations_lock);
11232 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
11234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11235 struct wireless_dev *wdev = info->user_ptr[1];
11238 if (!rdev->ops->start_p2p_device)
11239 return -EOPNOTSUPP;
11241 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11242 return -EOPNOTSUPP;
11244 if (wdev_running(wdev))
11247 if (rfkill_blocked(rdev->rfkill))
11250 err = rdev_start_p2p_device(rdev, wdev);
11254 wdev->is_running = true;
11260 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
11262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11263 struct wireless_dev *wdev = info->user_ptr[1];
11265 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11266 return -EOPNOTSUPP;
11268 if (!rdev->ops->stop_p2p_device)
11269 return -EOPNOTSUPP;
11271 cfg80211_stop_p2p_device(rdev, wdev);
11276 static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
11278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11279 struct wireless_dev *wdev = info->user_ptr[1];
11280 struct cfg80211_nan_conf conf = {};
11283 if (wdev->iftype != NL80211_IFTYPE_NAN)
11284 return -EOPNOTSUPP;
11286 if (wdev_running(wdev))
11289 if (rfkill_blocked(rdev->rfkill))
11292 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
11296 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11297 if (!conf.master_pref)
11300 if (info->attrs[NL80211_ATTR_BANDS]) {
11301 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11303 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11304 return -EOPNOTSUPP;
11306 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11309 conf.bands = bands;
11312 err = rdev_start_nan(rdev, wdev, &conf);
11316 wdev->is_running = true;
11322 static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
11324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11325 struct wireless_dev *wdev = info->user_ptr[1];
11327 if (wdev->iftype != NL80211_IFTYPE_NAN)
11328 return -EOPNOTSUPP;
11330 cfg80211_stop_nan(rdev, wdev);
11335 static int validate_nan_filter(struct nlattr *filter_attr)
11337 struct nlattr *attr;
11338 int len = 0, n_entries = 0, rem;
11340 nla_for_each_nested(attr, filter_attr, rem) {
11341 len += nla_len(attr);
11351 static int handle_nan_filter(struct nlattr *attr_filter,
11352 struct cfg80211_nan_func *func,
11355 struct nlattr *attr;
11356 int n_entries, rem, i;
11357 struct cfg80211_nan_func_filter *filter;
11359 n_entries = validate_nan_filter(attr_filter);
11363 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11365 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11370 nla_for_each_nested(attr, attr_filter, rem) {
11371 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
11372 filter[i].len = nla_len(attr);
11376 func->num_tx_filters = n_entries;
11377 func->tx_filters = filter;
11379 func->num_rx_filters = n_entries;
11380 func->rx_filters = filter;
11386 static int nl80211_nan_add_func(struct sk_buff *skb,
11387 struct genl_info *info)
11389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11390 struct wireless_dev *wdev = info->user_ptr[1];
11391 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11392 struct cfg80211_nan_func *func;
11393 struct sk_buff *msg = NULL;
11397 if (wdev->iftype != NL80211_IFTYPE_NAN)
11398 return -EOPNOTSUPP;
11400 if (!wdev_running(wdev))
11403 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11406 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11407 info->attrs[NL80211_ATTR_NAN_FUNC],
11408 nl80211_nan_func_policy, info->extack);
11412 func = kzalloc(sizeof(*func), GFP_KERNEL);
11416 func->cookie = wdev->wiphy->cookie_counter++;
11418 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11419 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11425 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11427 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11432 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11433 sizeof(func->service_id));
11435 func->close_range =
11436 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11438 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11439 func->serv_spec_info_len =
11440 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11441 func->serv_spec_info =
11442 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11443 func->serv_spec_info_len,
11445 if (!func->serv_spec_info) {
11451 if (tb[NL80211_NAN_FUNC_TTL])
11452 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11454 switch (func->type) {
11455 case NL80211_NAN_FUNC_PUBLISH:
11456 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11461 func->publish_type =
11462 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11463 func->publish_bcast =
11464 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11466 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11467 func->publish_bcast) {
11472 case NL80211_NAN_FUNC_SUBSCRIBE:
11473 func->subscribe_active =
11474 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11476 case NL80211_NAN_FUNC_FOLLOW_UP:
11477 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
11478 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] ||
11479 !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) {
11484 func->followup_id =
11485 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11486 func->followup_reqid =
11487 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11488 memcpy(func->followup_dest.addr,
11489 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11490 sizeof(func->followup_dest.addr));
11501 if (tb[NL80211_NAN_FUNC_SRF]) {
11502 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11504 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11505 tb[NL80211_NAN_FUNC_SRF],
11506 nl80211_nan_srf_policy, info->extack);
11510 func->srf_include =
11511 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11513 if (srf_tb[NL80211_NAN_SRF_BF]) {
11514 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11515 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11521 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11523 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11524 func->srf_bf_len, GFP_KERNEL);
11525 if (!func->srf_bf) {
11531 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11533 struct nlattr *attr, *mac_attr =
11534 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11535 int n_entries, rem, i = 0;
11542 n_entries = validate_acl_mac_addrs(mac_attr);
11543 if (n_entries <= 0) {
11548 func->srf_num_macs = n_entries;
11550 kzalloc(sizeof(*func->srf_macs) * n_entries,
11552 if (!func->srf_macs) {
11557 nla_for_each_nested(attr, mac_attr, rem)
11558 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11559 sizeof(*func->srf_macs));
11563 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11564 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11570 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11571 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11577 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11583 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11584 NL80211_CMD_ADD_NAN_FUNCTION);
11585 /* This can't really happen - we just allocated 4KB */
11586 if (WARN_ON(!hdr)) {
11591 err = rdev_add_nan_func(rdev, wdev, func);
11594 cfg80211_free_nan_func(func);
11599 /* propagate the instance id and cookie to userspace */
11600 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11602 goto nla_put_failure;
11604 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11606 goto nla_put_failure;
11608 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11609 func->instance_id))
11610 goto nla_put_failure;
11612 nla_nest_end(msg, func_attr);
11614 genlmsg_end(msg, hdr);
11615 return genlmsg_reply(msg, info);
11622 static int nl80211_nan_del_func(struct sk_buff *skb,
11623 struct genl_info *info)
11625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11626 struct wireless_dev *wdev = info->user_ptr[1];
11629 if (wdev->iftype != NL80211_IFTYPE_NAN)
11630 return -EOPNOTSUPP;
11632 if (!wdev_running(wdev))
11635 if (!info->attrs[NL80211_ATTR_COOKIE])
11638 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11640 rdev_del_nan_func(rdev, wdev, cookie);
11645 static int nl80211_nan_change_config(struct sk_buff *skb,
11646 struct genl_info *info)
11648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11649 struct wireless_dev *wdev = info->user_ptr[1];
11650 struct cfg80211_nan_conf conf = {};
11653 if (wdev->iftype != NL80211_IFTYPE_NAN)
11654 return -EOPNOTSUPP;
11656 if (!wdev_running(wdev))
11659 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11661 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11662 if (conf.master_pref <= 1 || conf.master_pref == 255)
11665 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11668 if (info->attrs[NL80211_ATTR_BANDS]) {
11669 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11671 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11672 return -EOPNOTSUPP;
11674 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11677 conf.bands = bands;
11678 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
11684 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11687 void cfg80211_nan_match(struct wireless_dev *wdev,
11688 struct cfg80211_nan_match_params *match, gfp_t gfp)
11690 struct wiphy *wiphy = wdev->wiphy;
11691 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11692 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11693 struct sk_buff *msg;
11696 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11699 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11703 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11709 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11710 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11711 wdev->netdev->ifindex)) ||
11712 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11714 goto nla_put_failure;
11716 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11717 NL80211_ATTR_PAD) ||
11718 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11719 goto nla_put_failure;
11721 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11723 goto nla_put_failure;
11725 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11726 if (!local_func_attr)
11727 goto nla_put_failure;
11729 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11730 goto nla_put_failure;
11732 nla_nest_end(msg, local_func_attr);
11734 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11735 if (!peer_func_attr)
11736 goto nla_put_failure;
11738 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11739 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11740 goto nla_put_failure;
11742 if (match->info && match->info_len &&
11743 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11745 goto nla_put_failure;
11747 nla_nest_end(msg, peer_func_attr);
11748 nla_nest_end(msg, match_attr);
11749 genlmsg_end(msg, hdr);
11751 if (!wdev->owner_nlportid)
11752 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11753 msg, 0, NL80211_MCGRP_NAN, gfp);
11755 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11756 wdev->owner_nlportid);
11763 EXPORT_SYMBOL(cfg80211_nan_match);
11765 void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11767 enum nl80211_nan_func_term_reason reason,
11768 u64 cookie, gfp_t gfp)
11770 struct wiphy *wiphy = wdev->wiphy;
11771 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11772 struct sk_buff *msg;
11773 struct nlattr *func_attr;
11776 if (WARN_ON(!inst_id))
11779 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11783 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11789 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11790 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11791 wdev->netdev->ifindex)) ||
11792 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11794 goto nla_put_failure;
11796 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11798 goto nla_put_failure;
11800 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11802 goto nla_put_failure;
11804 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11805 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11806 goto nla_put_failure;
11808 nla_nest_end(msg, func_attr);
11809 genlmsg_end(msg, hdr);
11811 if (!wdev->owner_nlportid)
11812 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11813 msg, 0, NL80211_MCGRP_NAN, gfp);
11815 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11816 wdev->owner_nlportid);
11823 EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11825 static int nl80211_get_protocol_features(struct sk_buff *skb,
11826 struct genl_info *info)
11829 struct sk_buff *msg;
11831 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11835 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11836 NL80211_CMD_GET_PROTOCOL_FEATURES);
11838 goto nla_put_failure;
11840 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11841 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11842 goto nla_put_failure;
11844 genlmsg_end(msg, hdr);
11845 return genlmsg_reply(msg, info);
11852 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11854 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11855 struct cfg80211_update_ft_ies_params ft_params;
11856 struct net_device *dev = info->user_ptr[1];
11858 if (!rdev->ops->update_ft_ies)
11859 return -EOPNOTSUPP;
11861 if (!info->attrs[NL80211_ATTR_MDID] ||
11862 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11865 memset(&ft_params, 0, sizeof(ft_params));
11866 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11867 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11868 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11870 return rdev_update_ft_ies(rdev, dev, &ft_params);
11873 static int nl80211_crit_protocol_start(struct sk_buff *skb,
11874 struct genl_info *info)
11876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11877 struct wireless_dev *wdev = info->user_ptr[1];
11878 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11882 if (!rdev->ops->crit_proto_start)
11883 return -EOPNOTSUPP;
11885 if (WARN_ON(!rdev->ops->crit_proto_stop))
11888 if (rdev->crit_proto_nlportid)
11891 /* determine protocol if provided */
11892 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11893 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11895 if (proto >= NUM_NL80211_CRIT_PROTO)
11898 /* timeout must be provided */
11899 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11903 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11905 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11908 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11910 rdev->crit_proto_nlportid = info->snd_portid;
11915 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11916 struct genl_info *info)
11918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11919 struct wireless_dev *wdev = info->user_ptr[1];
11921 if (!rdev->ops->crit_proto_stop)
11922 return -EOPNOTSUPP;
11924 if (rdev->crit_proto_nlportid) {
11925 rdev->crit_proto_nlportid = 0;
11926 rdev_crit_proto_stop(rdev, wdev);
11931 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11934 struct wireless_dev *wdev =
11935 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11939 if (!rdev->wiphy.vendor_commands)
11940 return -EOPNOTSUPP;
11942 if (IS_ERR(wdev)) {
11943 err = PTR_ERR(wdev);
11944 if (err != -EINVAL)
11947 } else if (wdev->wiphy != &rdev->wiphy) {
11951 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11952 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11955 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11956 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11957 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11958 const struct wiphy_vendor_command *vcmd;
11962 vcmd = &rdev->wiphy.vendor_commands[i];
11964 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11967 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11968 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11971 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11975 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
11976 if (!wdev_running(wdev))
11981 return -EOPNOTSUPP;
11986 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11987 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11988 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11991 rdev->cur_cmd_info = info;
11992 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11994 rdev->cur_cmd_info = NULL;
11998 return -EOPNOTSUPP;
12001 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
12002 struct netlink_callback *cb,
12003 struct cfg80211_registered_device **rdev,
12004 struct wireless_dev **wdev)
12006 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
12012 unsigned int data_len = 0;
12015 /* subtract the 1 again here */
12016 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
12017 struct wireless_dev *tmp;
12021 *rdev = wiphy_to_rdev(wiphy);
12025 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
12026 if (tmp->identifier == cb->args[1] - 1) {
12033 /* keep rtnl locked in successful case */
12037 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
12038 nl80211_fam.maxattr, nl80211_policy, NULL);
12042 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
12043 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
12046 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
12050 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
12052 return PTR_ERR(*rdev);
12054 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
12055 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
12057 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
12058 const struct wiphy_vendor_command *vcmd;
12060 vcmd = &(*rdev)->wiphy.vendor_commands[i];
12062 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
12066 return -EOPNOTSUPP;
12073 return -EOPNOTSUPP;
12075 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
12076 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
12077 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
12080 /* 0 is the first index - add 1 to parse only once */
12081 cb->args[0] = (*rdev)->wiphy_idx + 1;
12082 /* add 1 to know if it was NULL */
12083 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
12084 cb->args[2] = vcmd_idx;
12085 cb->args[3] = (unsigned long)data;
12086 cb->args[4] = data_len;
12088 /* keep rtnl locked in successful case */
12092 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
12093 struct netlink_callback *cb)
12095 struct cfg80211_registered_device *rdev;
12096 struct wireless_dev *wdev;
12097 unsigned int vcmd_idx;
12098 const struct wiphy_vendor_command *vcmd;
12102 struct nlattr *vendor_data;
12105 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
12109 vcmd_idx = cb->args[2];
12110 data = (void *)cb->args[3];
12111 data_len = cb->args[4];
12112 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
12114 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
12115 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
12120 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
12126 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
12127 if (!wdev_running(wdev)) {
12135 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
12136 cb->nlh->nlmsg_seq, NLM_F_MULTI,
12137 NL80211_CMD_VENDOR);
12141 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12142 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
12144 NL80211_ATTR_PAD))) {
12145 genlmsg_cancel(skb, hdr);
12149 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
12150 if (!vendor_data) {
12151 genlmsg_cancel(skb, hdr);
12155 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
12156 (unsigned long *)&cb->args[5]);
12157 nla_nest_end(skb, vendor_data);
12159 if (err == -ENOBUFS || err == -ENOENT) {
12160 genlmsg_cancel(skb, hdr);
12163 genlmsg_cancel(skb, hdr);
12167 genlmsg_end(skb, hdr);
12176 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
12177 enum nl80211_commands cmd,
12178 enum nl80211_attrs attr,
12181 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12183 if (WARN_ON(!rdev->cur_cmd_info))
12186 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
12187 rdev->cur_cmd_info->snd_portid,
12188 rdev->cur_cmd_info->snd_seq,
12189 cmd, attr, NULL, GFP_KERNEL);
12191 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
12193 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
12195 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
12196 void *hdr = ((void **)skb->cb)[1];
12197 struct nlattr *data = ((void **)skb->cb)[2];
12199 /* clear CB data for netlink core to own from now on */
12200 memset(skb->cb, 0, sizeof(skb->cb));
12202 if (WARN_ON(!rdev->cur_cmd_info)) {
12207 nla_nest_end(skb, data);
12208 genlmsg_end(skb, hdr);
12209 return genlmsg_reply(skb, rdev->cur_cmd_info);
12211 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
12213 static int nl80211_set_qos_map(struct sk_buff *skb,
12214 struct genl_info *info)
12216 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12217 struct cfg80211_qos_map *qos_map = NULL;
12218 struct net_device *dev = info->user_ptr[1];
12219 u8 *pos, len, num_des, des_len, des;
12222 if (!rdev->ops->set_qos_map)
12223 return -EOPNOTSUPP;
12225 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
12226 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
12227 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
12229 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
12230 len > IEEE80211_QOS_MAP_LEN_MAX)
12233 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
12237 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
12239 des_len = num_des *
12240 sizeof(struct cfg80211_dscp_exception);
12241 memcpy(qos_map->dscp_exception, pos, des_len);
12242 qos_map->num_des = num_des;
12243 for (des = 0; des < num_des; des++) {
12244 if (qos_map->dscp_exception[des].up > 7) {
12251 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
12254 wdev_lock(dev->ieee80211_ptr);
12255 ret = nl80211_key_allowed(dev->ieee80211_ptr);
12257 ret = rdev_set_qos_map(rdev, dev, qos_map);
12258 wdev_unlock(dev->ieee80211_ptr);
12264 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
12266 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12267 struct net_device *dev = info->user_ptr[1];
12268 struct wireless_dev *wdev = dev->ieee80211_ptr;
12271 u16 admitted_time = 0;
12274 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
12275 return -EOPNOTSUPP;
12277 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
12278 !info->attrs[NL80211_ATTR_USER_PRIO])
12281 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12282 if (tsid >= IEEE80211_NUM_TIDS)
12285 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
12286 if (up >= IEEE80211_NUM_UPS)
12289 /* WMM uses TIDs 0-7 even for TSPEC */
12290 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
12291 /* TODO: handle 802.11 TSPEC/admission control
12292 * need more attributes for that (e.g. BA session requirement);
12293 * change the WMM adminssion test above to allow both then
12298 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12300 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
12302 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
12303 if (!admitted_time)
12308 switch (wdev->iftype) {
12309 case NL80211_IFTYPE_STATION:
12310 case NL80211_IFTYPE_P2P_CLIENT:
12311 if (wdev->current_bss)
12320 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
12327 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
12329 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12330 struct net_device *dev = info->user_ptr[1];
12331 struct wireless_dev *wdev = dev->ieee80211_ptr;
12336 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
12339 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12340 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12343 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12349 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12350 struct genl_info *info)
12352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12353 struct net_device *dev = info->user_ptr[1];
12354 struct wireless_dev *wdev = dev->ieee80211_ptr;
12355 struct cfg80211_chan_def chandef = {};
12360 if (!rdev->ops->tdls_channel_switch ||
12361 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12362 return -EOPNOTSUPP;
12364 switch (dev->ieee80211_ptr->iftype) {
12365 case NL80211_IFTYPE_STATION:
12366 case NL80211_IFTYPE_P2P_CLIENT:
12369 return -EOPNOTSUPP;
12372 if (!info->attrs[NL80211_ATTR_MAC] ||
12373 !info->attrs[NL80211_ATTR_OPER_CLASS])
12376 err = nl80211_parse_chandef(rdev, info, &chandef);
12381 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12382 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12383 * specification is not defined for them.
12385 if (chandef.chan->band == NL80211_BAND_2GHZ &&
12386 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12387 chandef.width != NL80211_CHAN_WIDTH_20)
12390 /* we will be active on the TDLS link */
12391 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12395 /* don't allow switching to DFS channels */
12396 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12399 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12400 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12403 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12409 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12410 struct genl_info *info)
12412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12413 struct net_device *dev = info->user_ptr[1];
12414 struct wireless_dev *wdev = dev->ieee80211_ptr;
12417 if (!rdev->ops->tdls_channel_switch ||
12418 !rdev->ops->tdls_cancel_channel_switch ||
12419 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12420 return -EOPNOTSUPP;
12422 switch (dev->ieee80211_ptr->iftype) {
12423 case NL80211_IFTYPE_STATION:
12424 case NL80211_IFTYPE_P2P_CLIENT:
12427 return -EOPNOTSUPP;
12430 if (!info->attrs[NL80211_ATTR_MAC])
12433 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12436 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12442 static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12443 struct genl_info *info)
12445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12446 struct net_device *dev = info->user_ptr[1];
12447 struct wireless_dev *wdev = dev->ieee80211_ptr;
12448 const struct nlattr *nla;
12451 if (!rdev->ops->set_multicast_to_unicast)
12452 return -EOPNOTSUPP;
12454 if (wdev->iftype != NL80211_IFTYPE_AP &&
12455 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12456 return -EOPNOTSUPP;
12458 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12459 enabled = nla_get_flag(nla);
12461 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12464 static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
12466 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12467 struct net_device *dev = info->user_ptr[1];
12468 struct wireless_dev *wdev = dev->ieee80211_ptr;
12469 struct cfg80211_pmk_conf pmk_conf = {};
12472 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12473 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12474 return -EOPNOTSUPP;
12476 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12477 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12478 return -EOPNOTSUPP;
12480 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
12484 if (!wdev->current_bss) {
12489 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12490 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
12495 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
12496 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
12497 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
12498 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
12503 if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
12504 int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12506 if (r0_name_len != WLAN_PMK_NAME_LEN) {
12511 pmk_conf.pmk_r0_name =
12512 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12515 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
12521 static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
12523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12524 struct net_device *dev = info->user_ptr[1];
12525 struct wireless_dev *wdev = dev->ieee80211_ptr;
12529 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12530 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12531 return -EOPNOTSUPP;
12533 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12534 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12535 return -EOPNOTSUPP;
12537 if (!info->attrs[NL80211_ATTR_MAC])
12541 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12542 ret = rdev_del_pmk(rdev, dev, aa);
12548 static int nl80211_external_auth(struct sk_buff *skb, struct genl_info *info)
12550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12551 struct net_device *dev = info->user_ptr[1];
12552 struct cfg80211_external_auth_params params;
12554 if (!rdev->ops->external_auth)
12555 return -EOPNOTSUPP;
12557 if (!info->attrs[NL80211_ATTR_SSID])
12560 if (!info->attrs[NL80211_ATTR_BSSID])
12563 if (!info->attrs[NL80211_ATTR_STATUS_CODE])
12566 memset(¶ms, 0, sizeof(params));
12568 params.ssid.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
12569 if (params.ssid.ssid_len == 0 ||
12570 params.ssid.ssid_len > IEEE80211_MAX_SSID_LEN)
12572 memcpy(params.ssid.ssid, nla_data(info->attrs[NL80211_ATTR_SSID]),
12573 params.ssid.ssid_len);
12575 memcpy(params.bssid, nla_data(info->attrs[NL80211_ATTR_BSSID]),
12578 params.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
12580 return rdev_external_auth(rdev, dev, ¶ms);
12583 static int nl80211_tx_control_port(struct sk_buff *skb, struct genl_info *info)
12585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12586 struct net_device *dev = info->user_ptr[1];
12587 struct wireless_dev *wdev = dev->ieee80211_ptr;
12595 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12596 NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
12597 return -EOPNOTSUPP;
12599 if (!rdev->ops->tx_control_port)
12600 return -EOPNOTSUPP;
12602 if (!info->attrs[NL80211_ATTR_FRAME] ||
12603 !info->attrs[NL80211_ATTR_MAC] ||
12604 !info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
12605 GENL_SET_ERR_MSG(info, "Frame, MAC or ethertype missing");
12611 switch (wdev->iftype) {
12612 case NL80211_IFTYPE_AP:
12613 case NL80211_IFTYPE_P2P_GO:
12614 case NL80211_IFTYPE_MESH_POINT:
12616 case NL80211_IFTYPE_ADHOC:
12617 case NL80211_IFTYPE_STATION:
12618 case NL80211_IFTYPE_P2P_CLIENT:
12619 if (wdev->current_bss)
12630 buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
12631 len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
12632 dest = nla_data(info->attrs[NL80211_ATTR_MAC]);
12633 proto = nla_get_u16(info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
12635 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]);
12637 return rdev_tx_control_port(rdev, dev, buf, len,
12638 dest, cpu_to_be16(proto), noencrypt);
12645 #define NL80211_FLAG_NEED_WIPHY 0x01
12646 #define NL80211_FLAG_NEED_NETDEV 0x02
12647 #define NL80211_FLAG_NEED_RTNL 0x04
12648 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
12649 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
12650 NL80211_FLAG_CHECK_NETDEV_UP)
12651 #define NL80211_FLAG_NEED_WDEV 0x10
12652 /* If a netdev is associated, it must be UP, P2P must be started */
12653 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
12654 NL80211_FLAG_CHECK_NETDEV_UP)
12655 #define NL80211_FLAG_CLEAR_SKB 0x20
12657 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
12658 struct genl_info *info)
12660 struct cfg80211_registered_device *rdev;
12661 struct wireless_dev *wdev;
12662 struct net_device *dev;
12663 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
12668 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
12669 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
12670 if (IS_ERR(rdev)) {
12673 return PTR_ERR(rdev);
12675 info->user_ptr[0] = rdev;
12676 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
12677 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12680 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
12682 if (IS_ERR(wdev)) {
12685 return PTR_ERR(wdev);
12688 dev = wdev->netdev;
12689 rdev = wiphy_to_rdev(wdev->wiphy);
12691 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12698 info->user_ptr[1] = dev;
12700 info->user_ptr[1] = wdev;
12703 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12704 !wdev_running(wdev)) {
12713 info->user_ptr[0] = rdev;
12719 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
12720 struct genl_info *info)
12722 if (info->user_ptr[1]) {
12723 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12724 struct wireless_dev *wdev = info->user_ptr[1];
12727 dev_put(wdev->netdev);
12729 dev_put(info->user_ptr[1]);
12733 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12736 /* If needed, clear the netlink message payload from the SKB
12737 * as it might contain key data that shouldn't stick around on
12738 * the heap after the SKB is freed. The netlink message header
12739 * is still needed for further processing, so leave it intact.
12741 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12742 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12744 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12748 static const struct genl_ops nl80211_ops[] = {
12750 .cmd = NL80211_CMD_GET_WIPHY,
12751 .doit = nl80211_get_wiphy,
12752 .dumpit = nl80211_dump_wiphy,
12753 .done = nl80211_dump_wiphy_done,
12754 .policy = nl80211_policy,
12755 /* can be retrieved by unprivileged users */
12756 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12757 NL80211_FLAG_NEED_RTNL,
12760 .cmd = NL80211_CMD_SET_WIPHY,
12761 .doit = nl80211_set_wiphy,
12762 .policy = nl80211_policy,
12763 .flags = GENL_UNS_ADMIN_PERM,
12764 .internal_flags = NL80211_FLAG_NEED_RTNL,
12767 .cmd = NL80211_CMD_GET_INTERFACE,
12768 .doit = nl80211_get_interface,
12769 .dumpit = nl80211_dump_interface,
12770 .policy = nl80211_policy,
12771 /* can be retrieved by unprivileged users */
12772 .internal_flags = NL80211_FLAG_NEED_WDEV |
12773 NL80211_FLAG_NEED_RTNL,
12776 .cmd = NL80211_CMD_SET_INTERFACE,
12777 .doit = nl80211_set_interface,
12778 .policy = nl80211_policy,
12779 .flags = GENL_UNS_ADMIN_PERM,
12780 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12781 NL80211_FLAG_NEED_RTNL,
12784 .cmd = NL80211_CMD_NEW_INTERFACE,
12785 .doit = nl80211_new_interface,
12786 .policy = nl80211_policy,
12787 .flags = GENL_UNS_ADMIN_PERM,
12788 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12789 NL80211_FLAG_NEED_RTNL,
12792 .cmd = NL80211_CMD_DEL_INTERFACE,
12793 .doit = nl80211_del_interface,
12794 .policy = nl80211_policy,
12795 .flags = GENL_UNS_ADMIN_PERM,
12796 .internal_flags = NL80211_FLAG_NEED_WDEV |
12797 NL80211_FLAG_NEED_RTNL,
12800 .cmd = NL80211_CMD_GET_KEY,
12801 .doit = nl80211_get_key,
12802 .policy = nl80211_policy,
12803 .flags = GENL_UNS_ADMIN_PERM,
12804 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12805 NL80211_FLAG_NEED_RTNL,
12808 .cmd = NL80211_CMD_SET_KEY,
12809 .doit = nl80211_set_key,
12810 .policy = nl80211_policy,
12811 .flags = GENL_UNS_ADMIN_PERM,
12812 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12813 NL80211_FLAG_NEED_RTNL |
12814 NL80211_FLAG_CLEAR_SKB,
12817 .cmd = NL80211_CMD_NEW_KEY,
12818 .doit = nl80211_new_key,
12819 .policy = nl80211_policy,
12820 .flags = GENL_UNS_ADMIN_PERM,
12821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12822 NL80211_FLAG_NEED_RTNL |
12823 NL80211_FLAG_CLEAR_SKB,
12826 .cmd = NL80211_CMD_DEL_KEY,
12827 .doit = nl80211_del_key,
12828 .policy = nl80211_policy,
12829 .flags = GENL_UNS_ADMIN_PERM,
12830 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12831 NL80211_FLAG_NEED_RTNL,
12834 .cmd = NL80211_CMD_SET_BEACON,
12835 .policy = nl80211_policy,
12836 .flags = GENL_UNS_ADMIN_PERM,
12837 .doit = nl80211_set_beacon,
12838 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12839 NL80211_FLAG_NEED_RTNL,
12842 .cmd = NL80211_CMD_START_AP,
12843 .policy = nl80211_policy,
12844 .flags = GENL_UNS_ADMIN_PERM,
12845 .doit = nl80211_start_ap,
12846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12847 NL80211_FLAG_NEED_RTNL,
12850 .cmd = NL80211_CMD_STOP_AP,
12851 .policy = nl80211_policy,
12852 .flags = GENL_UNS_ADMIN_PERM,
12853 .doit = nl80211_stop_ap,
12854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12855 NL80211_FLAG_NEED_RTNL,
12858 .cmd = NL80211_CMD_GET_STATION,
12859 .doit = nl80211_get_station,
12860 .dumpit = nl80211_dump_station,
12861 .policy = nl80211_policy,
12862 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12863 NL80211_FLAG_NEED_RTNL,
12866 .cmd = NL80211_CMD_SET_STATION,
12867 .doit = nl80211_set_station,
12868 .policy = nl80211_policy,
12869 .flags = GENL_UNS_ADMIN_PERM,
12870 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12871 NL80211_FLAG_NEED_RTNL,
12874 .cmd = NL80211_CMD_NEW_STATION,
12875 .doit = nl80211_new_station,
12876 .policy = nl80211_policy,
12877 .flags = GENL_UNS_ADMIN_PERM,
12878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12879 NL80211_FLAG_NEED_RTNL,
12882 .cmd = NL80211_CMD_DEL_STATION,
12883 .doit = nl80211_del_station,
12884 .policy = nl80211_policy,
12885 .flags = GENL_UNS_ADMIN_PERM,
12886 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12887 NL80211_FLAG_NEED_RTNL,
12890 .cmd = NL80211_CMD_GET_MPATH,
12891 .doit = nl80211_get_mpath,
12892 .dumpit = nl80211_dump_mpath,
12893 .policy = nl80211_policy,
12894 .flags = GENL_UNS_ADMIN_PERM,
12895 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12896 NL80211_FLAG_NEED_RTNL,
12899 .cmd = NL80211_CMD_GET_MPP,
12900 .doit = nl80211_get_mpp,
12901 .dumpit = nl80211_dump_mpp,
12902 .policy = nl80211_policy,
12903 .flags = GENL_UNS_ADMIN_PERM,
12904 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12905 NL80211_FLAG_NEED_RTNL,
12908 .cmd = NL80211_CMD_SET_MPATH,
12909 .doit = nl80211_set_mpath,
12910 .policy = nl80211_policy,
12911 .flags = GENL_UNS_ADMIN_PERM,
12912 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12913 NL80211_FLAG_NEED_RTNL,
12916 .cmd = NL80211_CMD_NEW_MPATH,
12917 .doit = nl80211_new_mpath,
12918 .policy = nl80211_policy,
12919 .flags = GENL_UNS_ADMIN_PERM,
12920 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12921 NL80211_FLAG_NEED_RTNL,
12924 .cmd = NL80211_CMD_DEL_MPATH,
12925 .doit = nl80211_del_mpath,
12926 .policy = nl80211_policy,
12927 .flags = GENL_UNS_ADMIN_PERM,
12928 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12929 NL80211_FLAG_NEED_RTNL,
12932 .cmd = NL80211_CMD_SET_BSS,
12933 .doit = nl80211_set_bss,
12934 .policy = nl80211_policy,
12935 .flags = GENL_UNS_ADMIN_PERM,
12936 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12937 NL80211_FLAG_NEED_RTNL,
12940 .cmd = NL80211_CMD_GET_REG,
12941 .doit = nl80211_get_reg_do,
12942 .dumpit = nl80211_get_reg_dump,
12943 .policy = nl80211_policy,
12944 .internal_flags = NL80211_FLAG_NEED_RTNL,
12945 /* can be retrieved by unprivileged users */
12947 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
12949 .cmd = NL80211_CMD_SET_REG,
12950 .doit = nl80211_set_reg,
12951 .policy = nl80211_policy,
12952 .flags = GENL_ADMIN_PERM,
12953 .internal_flags = NL80211_FLAG_NEED_RTNL,
12957 .cmd = NL80211_CMD_REQ_SET_REG,
12958 .doit = nl80211_req_set_reg,
12959 .policy = nl80211_policy,
12960 .flags = GENL_ADMIN_PERM,
12963 .cmd = NL80211_CMD_RELOAD_REGDB,
12964 .doit = nl80211_reload_regdb,
12965 .policy = nl80211_policy,
12966 .flags = GENL_ADMIN_PERM,
12969 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12970 .doit = nl80211_get_mesh_config,
12971 .policy = nl80211_policy,
12972 /* can be retrieved by unprivileged users */
12973 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12974 NL80211_FLAG_NEED_RTNL,
12977 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12978 .doit = nl80211_update_mesh_config,
12979 .policy = nl80211_policy,
12980 .flags = GENL_UNS_ADMIN_PERM,
12981 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12982 NL80211_FLAG_NEED_RTNL,
12985 .cmd = NL80211_CMD_TRIGGER_SCAN,
12986 .doit = nl80211_trigger_scan,
12987 .policy = nl80211_policy,
12988 .flags = GENL_UNS_ADMIN_PERM,
12989 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12990 NL80211_FLAG_NEED_RTNL,
12993 .cmd = NL80211_CMD_ABORT_SCAN,
12994 .doit = nl80211_abort_scan,
12995 .policy = nl80211_policy,
12996 .flags = GENL_UNS_ADMIN_PERM,
12997 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12998 NL80211_FLAG_NEED_RTNL,
13001 .cmd = NL80211_CMD_GET_SCAN,
13002 .policy = nl80211_policy,
13003 .dumpit = nl80211_dump_scan,
13006 .cmd = NL80211_CMD_START_SCHED_SCAN,
13007 .doit = nl80211_start_sched_scan,
13008 .policy = nl80211_policy,
13009 .flags = GENL_UNS_ADMIN_PERM,
13010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13011 NL80211_FLAG_NEED_RTNL,
13014 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
13015 .doit = nl80211_stop_sched_scan,
13016 .policy = nl80211_policy,
13017 .flags = GENL_UNS_ADMIN_PERM,
13018 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13019 NL80211_FLAG_NEED_RTNL,
13022 .cmd = NL80211_CMD_AUTHENTICATE,
13023 .doit = nl80211_authenticate,
13024 .policy = nl80211_policy,
13025 .flags = GENL_UNS_ADMIN_PERM,
13026 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13027 NL80211_FLAG_NEED_RTNL |
13028 NL80211_FLAG_CLEAR_SKB,
13031 .cmd = NL80211_CMD_ASSOCIATE,
13032 .doit = nl80211_associate,
13033 .policy = nl80211_policy,
13034 .flags = GENL_UNS_ADMIN_PERM,
13035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13036 NL80211_FLAG_NEED_RTNL,
13039 .cmd = NL80211_CMD_DEAUTHENTICATE,
13040 .doit = nl80211_deauthenticate,
13041 .policy = nl80211_policy,
13042 .flags = GENL_UNS_ADMIN_PERM,
13043 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13044 NL80211_FLAG_NEED_RTNL,
13047 .cmd = NL80211_CMD_DISASSOCIATE,
13048 .doit = nl80211_disassociate,
13049 .policy = nl80211_policy,
13050 .flags = GENL_UNS_ADMIN_PERM,
13051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13052 NL80211_FLAG_NEED_RTNL,
13055 .cmd = NL80211_CMD_JOIN_IBSS,
13056 .doit = nl80211_join_ibss,
13057 .policy = nl80211_policy,
13058 .flags = GENL_UNS_ADMIN_PERM,
13059 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13060 NL80211_FLAG_NEED_RTNL,
13063 .cmd = NL80211_CMD_LEAVE_IBSS,
13064 .doit = nl80211_leave_ibss,
13065 .policy = nl80211_policy,
13066 .flags = GENL_UNS_ADMIN_PERM,
13067 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13068 NL80211_FLAG_NEED_RTNL,
13070 #ifdef CONFIG_NL80211_TESTMODE
13072 .cmd = NL80211_CMD_TESTMODE,
13073 .doit = nl80211_testmode_do,
13074 .dumpit = nl80211_testmode_dump,
13075 .policy = nl80211_policy,
13076 .flags = GENL_UNS_ADMIN_PERM,
13077 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13078 NL80211_FLAG_NEED_RTNL,
13082 .cmd = NL80211_CMD_CONNECT,
13083 .doit = nl80211_connect,
13084 .policy = nl80211_policy,
13085 .flags = GENL_UNS_ADMIN_PERM,
13086 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13087 NL80211_FLAG_NEED_RTNL,
13090 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
13091 .doit = nl80211_update_connect_params,
13092 .policy = nl80211_policy,
13093 .flags = GENL_ADMIN_PERM,
13094 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13095 NL80211_FLAG_NEED_RTNL,
13098 .cmd = NL80211_CMD_DISCONNECT,
13099 .doit = nl80211_disconnect,
13100 .policy = nl80211_policy,
13101 .flags = GENL_UNS_ADMIN_PERM,
13102 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13103 NL80211_FLAG_NEED_RTNL,
13106 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
13107 .doit = nl80211_wiphy_netns,
13108 .policy = nl80211_policy,
13109 .flags = GENL_UNS_ADMIN_PERM,
13110 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13111 NL80211_FLAG_NEED_RTNL,
13114 .cmd = NL80211_CMD_GET_SURVEY,
13115 .policy = nl80211_policy,
13116 .dumpit = nl80211_dump_survey,
13119 .cmd = NL80211_CMD_SET_PMKSA,
13120 .doit = nl80211_setdel_pmksa,
13121 .policy = nl80211_policy,
13122 .flags = GENL_UNS_ADMIN_PERM,
13123 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13124 NL80211_FLAG_NEED_RTNL,
13127 .cmd = NL80211_CMD_DEL_PMKSA,
13128 .doit = nl80211_setdel_pmksa,
13129 .policy = nl80211_policy,
13130 .flags = GENL_UNS_ADMIN_PERM,
13131 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13132 NL80211_FLAG_NEED_RTNL,
13135 .cmd = NL80211_CMD_FLUSH_PMKSA,
13136 .doit = nl80211_flush_pmksa,
13137 .policy = nl80211_policy,
13138 .flags = GENL_UNS_ADMIN_PERM,
13139 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13140 NL80211_FLAG_NEED_RTNL,
13143 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
13144 .doit = nl80211_remain_on_channel,
13145 .policy = nl80211_policy,
13146 .flags = GENL_UNS_ADMIN_PERM,
13147 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13148 NL80211_FLAG_NEED_RTNL,
13151 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
13152 .doit = nl80211_cancel_remain_on_channel,
13153 .policy = nl80211_policy,
13154 .flags = GENL_UNS_ADMIN_PERM,
13155 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13156 NL80211_FLAG_NEED_RTNL,
13159 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
13160 .doit = nl80211_set_tx_bitrate_mask,
13161 .policy = nl80211_policy,
13162 .flags = GENL_UNS_ADMIN_PERM,
13163 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13164 NL80211_FLAG_NEED_RTNL,
13167 .cmd = NL80211_CMD_REGISTER_FRAME,
13168 .doit = nl80211_register_mgmt,
13169 .policy = nl80211_policy,
13170 .flags = GENL_UNS_ADMIN_PERM,
13171 .internal_flags = NL80211_FLAG_NEED_WDEV |
13172 NL80211_FLAG_NEED_RTNL,
13175 .cmd = NL80211_CMD_FRAME,
13176 .doit = nl80211_tx_mgmt,
13177 .policy = nl80211_policy,
13178 .flags = GENL_UNS_ADMIN_PERM,
13179 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13180 NL80211_FLAG_NEED_RTNL,
13183 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
13184 .doit = nl80211_tx_mgmt_cancel_wait,
13185 .policy = nl80211_policy,
13186 .flags = GENL_UNS_ADMIN_PERM,
13187 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13188 NL80211_FLAG_NEED_RTNL,
13191 .cmd = NL80211_CMD_SET_POWER_SAVE,
13192 .doit = nl80211_set_power_save,
13193 .policy = nl80211_policy,
13194 .flags = GENL_UNS_ADMIN_PERM,
13195 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13196 NL80211_FLAG_NEED_RTNL,
13199 .cmd = NL80211_CMD_GET_POWER_SAVE,
13200 .doit = nl80211_get_power_save,
13201 .policy = nl80211_policy,
13202 /* can be retrieved by unprivileged users */
13203 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13204 NL80211_FLAG_NEED_RTNL,
13207 .cmd = NL80211_CMD_SET_CQM,
13208 .doit = nl80211_set_cqm,
13209 .policy = nl80211_policy,
13210 .flags = GENL_UNS_ADMIN_PERM,
13211 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13212 NL80211_FLAG_NEED_RTNL,
13215 .cmd = NL80211_CMD_SET_CHANNEL,
13216 .doit = nl80211_set_channel,
13217 .policy = nl80211_policy,
13218 .flags = GENL_UNS_ADMIN_PERM,
13219 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13220 NL80211_FLAG_NEED_RTNL,
13223 .cmd = NL80211_CMD_SET_WDS_PEER,
13224 .doit = nl80211_set_wds_peer,
13225 .policy = nl80211_policy,
13226 .flags = GENL_UNS_ADMIN_PERM,
13227 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13228 NL80211_FLAG_NEED_RTNL,
13231 .cmd = NL80211_CMD_JOIN_MESH,
13232 .doit = nl80211_join_mesh,
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_LEAVE_MESH,
13240 .doit = nl80211_leave_mesh,
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_JOIN_OCB,
13248 .doit = nl80211_join_ocb,
13249 .policy = nl80211_policy,
13250 .flags = GENL_UNS_ADMIN_PERM,
13251 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13252 NL80211_FLAG_NEED_RTNL,
13255 .cmd = NL80211_CMD_LEAVE_OCB,
13256 .doit = nl80211_leave_ocb,
13257 .policy = nl80211_policy,
13258 .flags = GENL_UNS_ADMIN_PERM,
13259 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13260 NL80211_FLAG_NEED_RTNL,
13264 .cmd = NL80211_CMD_GET_WOWLAN,
13265 .doit = nl80211_get_wowlan,
13266 .policy = nl80211_policy,
13267 /* can be retrieved by unprivileged users */
13268 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13269 NL80211_FLAG_NEED_RTNL,
13272 .cmd = NL80211_CMD_SET_WOWLAN,
13273 .doit = nl80211_set_wowlan,
13274 .policy = nl80211_policy,
13275 .flags = GENL_UNS_ADMIN_PERM,
13276 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13277 NL80211_FLAG_NEED_RTNL,
13281 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
13282 .doit = nl80211_set_rekey_data,
13283 .policy = nl80211_policy,
13284 .flags = GENL_UNS_ADMIN_PERM,
13285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13286 NL80211_FLAG_NEED_RTNL |
13287 NL80211_FLAG_CLEAR_SKB,
13290 .cmd = NL80211_CMD_TDLS_MGMT,
13291 .doit = nl80211_tdls_mgmt,
13292 .policy = nl80211_policy,
13293 .flags = GENL_UNS_ADMIN_PERM,
13294 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13295 NL80211_FLAG_NEED_RTNL,
13298 .cmd = NL80211_CMD_TDLS_OPER,
13299 .doit = nl80211_tdls_oper,
13300 .policy = nl80211_policy,
13301 .flags = GENL_UNS_ADMIN_PERM,
13302 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13303 NL80211_FLAG_NEED_RTNL,
13306 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
13307 .doit = nl80211_register_unexpected_frame,
13308 .policy = nl80211_policy,
13309 .flags = GENL_UNS_ADMIN_PERM,
13310 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13311 NL80211_FLAG_NEED_RTNL,
13314 .cmd = NL80211_CMD_PROBE_CLIENT,
13315 .doit = nl80211_probe_client,
13316 .policy = nl80211_policy,
13317 .flags = GENL_UNS_ADMIN_PERM,
13318 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13319 NL80211_FLAG_NEED_RTNL,
13322 .cmd = NL80211_CMD_REGISTER_BEACONS,
13323 .doit = nl80211_register_beacons,
13324 .policy = nl80211_policy,
13325 .flags = GENL_UNS_ADMIN_PERM,
13326 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13327 NL80211_FLAG_NEED_RTNL,
13330 .cmd = NL80211_CMD_SET_NOACK_MAP,
13331 .doit = nl80211_set_noack_map,
13332 .policy = nl80211_policy,
13333 .flags = GENL_UNS_ADMIN_PERM,
13334 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13335 NL80211_FLAG_NEED_RTNL,
13338 .cmd = NL80211_CMD_START_P2P_DEVICE,
13339 .doit = nl80211_start_p2p_device,
13340 .policy = nl80211_policy,
13341 .flags = GENL_UNS_ADMIN_PERM,
13342 .internal_flags = NL80211_FLAG_NEED_WDEV |
13343 NL80211_FLAG_NEED_RTNL,
13346 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
13347 .doit = nl80211_stop_p2p_device,
13348 .policy = nl80211_policy,
13349 .flags = GENL_UNS_ADMIN_PERM,
13350 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13351 NL80211_FLAG_NEED_RTNL,
13354 .cmd = NL80211_CMD_START_NAN,
13355 .doit = nl80211_start_nan,
13356 .policy = nl80211_policy,
13357 .flags = GENL_ADMIN_PERM,
13358 .internal_flags = NL80211_FLAG_NEED_WDEV |
13359 NL80211_FLAG_NEED_RTNL,
13362 .cmd = NL80211_CMD_STOP_NAN,
13363 .doit = nl80211_stop_nan,
13364 .policy = nl80211_policy,
13365 .flags = GENL_ADMIN_PERM,
13366 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13367 NL80211_FLAG_NEED_RTNL,
13370 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
13371 .doit = nl80211_nan_add_func,
13372 .policy = nl80211_policy,
13373 .flags = GENL_ADMIN_PERM,
13374 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13375 NL80211_FLAG_NEED_RTNL,
13378 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
13379 .doit = nl80211_nan_del_func,
13380 .policy = nl80211_policy,
13381 .flags = GENL_ADMIN_PERM,
13382 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13383 NL80211_FLAG_NEED_RTNL,
13386 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
13387 .doit = nl80211_nan_change_config,
13388 .policy = nl80211_policy,
13389 .flags = GENL_ADMIN_PERM,
13390 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13391 NL80211_FLAG_NEED_RTNL,
13394 .cmd = NL80211_CMD_SET_MCAST_RATE,
13395 .doit = nl80211_set_mcast_rate,
13396 .policy = nl80211_policy,
13397 .flags = GENL_UNS_ADMIN_PERM,
13398 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13399 NL80211_FLAG_NEED_RTNL,
13402 .cmd = NL80211_CMD_SET_MAC_ACL,
13403 .doit = nl80211_set_mac_acl,
13404 .policy = nl80211_policy,
13405 .flags = GENL_UNS_ADMIN_PERM,
13406 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13407 NL80211_FLAG_NEED_RTNL,
13410 .cmd = NL80211_CMD_RADAR_DETECT,
13411 .doit = nl80211_start_radar_detection,
13412 .policy = nl80211_policy,
13413 .flags = GENL_UNS_ADMIN_PERM,
13414 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13415 NL80211_FLAG_NEED_RTNL,
13418 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
13419 .doit = nl80211_get_protocol_features,
13420 .policy = nl80211_policy,
13423 .cmd = NL80211_CMD_UPDATE_FT_IES,
13424 .doit = nl80211_update_ft_ies,
13425 .policy = nl80211_policy,
13426 .flags = GENL_UNS_ADMIN_PERM,
13427 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13428 NL80211_FLAG_NEED_RTNL,
13431 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
13432 .doit = nl80211_crit_protocol_start,
13433 .policy = nl80211_policy,
13434 .flags = GENL_UNS_ADMIN_PERM,
13435 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13436 NL80211_FLAG_NEED_RTNL,
13439 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
13440 .doit = nl80211_crit_protocol_stop,
13441 .policy = nl80211_policy,
13442 .flags = GENL_UNS_ADMIN_PERM,
13443 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13444 NL80211_FLAG_NEED_RTNL,
13447 .cmd = NL80211_CMD_GET_COALESCE,
13448 .doit = nl80211_get_coalesce,
13449 .policy = nl80211_policy,
13450 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13451 NL80211_FLAG_NEED_RTNL,
13454 .cmd = NL80211_CMD_SET_COALESCE,
13455 .doit = nl80211_set_coalesce,
13456 .policy = nl80211_policy,
13457 .flags = GENL_UNS_ADMIN_PERM,
13458 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13459 NL80211_FLAG_NEED_RTNL,
13462 .cmd = NL80211_CMD_CHANNEL_SWITCH,
13463 .doit = nl80211_channel_switch,
13464 .policy = nl80211_policy,
13465 .flags = GENL_UNS_ADMIN_PERM,
13466 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13467 NL80211_FLAG_NEED_RTNL,
13470 .cmd = NL80211_CMD_VENDOR,
13471 .doit = nl80211_vendor_cmd,
13472 .dumpit = nl80211_vendor_cmd_dump,
13473 .policy = nl80211_policy,
13474 .flags = GENL_UNS_ADMIN_PERM,
13475 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13476 NL80211_FLAG_NEED_RTNL,
13479 .cmd = NL80211_CMD_SET_QOS_MAP,
13480 .doit = nl80211_set_qos_map,
13481 .policy = nl80211_policy,
13482 .flags = GENL_UNS_ADMIN_PERM,
13483 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13484 NL80211_FLAG_NEED_RTNL,
13487 .cmd = NL80211_CMD_ADD_TX_TS,
13488 .doit = nl80211_add_tx_ts,
13489 .policy = nl80211_policy,
13490 .flags = GENL_UNS_ADMIN_PERM,
13491 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13492 NL80211_FLAG_NEED_RTNL,
13495 .cmd = NL80211_CMD_DEL_TX_TS,
13496 .doit = nl80211_del_tx_ts,
13497 .policy = nl80211_policy,
13498 .flags = GENL_UNS_ADMIN_PERM,
13499 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13500 NL80211_FLAG_NEED_RTNL,
13503 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
13504 .doit = nl80211_tdls_channel_switch,
13505 .policy = nl80211_policy,
13506 .flags = GENL_UNS_ADMIN_PERM,
13507 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13508 NL80211_FLAG_NEED_RTNL,
13511 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
13512 .doit = nl80211_tdls_cancel_channel_switch,
13513 .policy = nl80211_policy,
13514 .flags = GENL_UNS_ADMIN_PERM,
13515 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13516 NL80211_FLAG_NEED_RTNL,
13519 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
13520 .doit = nl80211_set_multicast_to_unicast,
13521 .policy = nl80211_policy,
13522 .flags = GENL_UNS_ADMIN_PERM,
13523 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13524 NL80211_FLAG_NEED_RTNL,
13527 .cmd = NL80211_CMD_SET_PMK,
13528 .doit = nl80211_set_pmk,
13529 .policy = nl80211_policy,
13530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13531 NL80211_FLAG_NEED_RTNL,
13534 .cmd = NL80211_CMD_DEL_PMK,
13535 .doit = nl80211_del_pmk,
13536 .policy = nl80211_policy,
13537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13538 NL80211_FLAG_NEED_RTNL,
13541 .cmd = NL80211_CMD_EXTERNAL_AUTH,
13542 .doit = nl80211_external_auth,
13543 .policy = nl80211_policy,
13544 .flags = GENL_ADMIN_PERM,
13545 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13546 NL80211_FLAG_NEED_RTNL,
13549 .cmd = NL80211_CMD_CONTROL_PORT_FRAME,
13550 .doit = nl80211_tx_control_port,
13551 .policy = nl80211_policy,
13552 .flags = GENL_UNS_ADMIN_PERM,
13553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13554 NL80211_FLAG_NEED_RTNL,
13558 static struct genl_family nl80211_fam __ro_after_init = {
13559 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13560 .hdrsize = 0, /* no private header */
13561 .version = 1, /* no particular meaning now */
13562 .maxattr = NL80211_ATTR_MAX,
13564 .pre_doit = nl80211_pre_doit,
13565 .post_doit = nl80211_post_doit,
13566 .module = THIS_MODULE,
13567 .ops = nl80211_ops,
13568 .n_ops = ARRAY_SIZE(nl80211_ops),
13569 .mcgrps = nl80211_mcgrps,
13570 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13573 /* notification functions */
13575 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13576 enum nl80211_commands cmd)
13578 struct sk_buff *msg;
13579 struct nl80211_dump_wiphy_state state = {};
13581 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13582 cmd != NL80211_CMD_DEL_WIPHY);
13584 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13588 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
13593 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13594 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13597 void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13598 struct wireless_dev *wdev,
13599 enum nl80211_commands cmd)
13601 struct sk_buff *msg;
13603 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13604 cmd != NL80211_CMD_DEL_INTERFACE);
13606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13610 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13611 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13616 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13617 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13620 static int nl80211_add_scan_req(struct sk_buff *msg,
13621 struct cfg80211_registered_device *rdev)
13623 struct cfg80211_scan_request *req = rdev->scan_req;
13624 struct nlattr *nest;
13630 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13632 goto nla_put_failure;
13633 for (i = 0; i < req->n_ssids; i++) {
13634 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13635 goto nla_put_failure;
13637 nla_nest_end(msg, nest);
13639 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13641 goto nla_put_failure;
13642 for (i = 0; i < req->n_channels; i++) {
13643 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
13644 goto nla_put_failure;
13646 nla_nest_end(msg, nest);
13649 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
13650 goto nla_put_failure;
13653 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
13654 goto nla_put_failure;
13656 if (req->info.scan_start_tsf &&
13657 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
13658 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
13659 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
13660 req->info.tsf_bssid)))
13661 goto nla_put_failure;
13668 static int nl80211_prep_scan_msg(struct sk_buff *msg,
13669 struct cfg80211_registered_device *rdev,
13670 struct wireless_dev *wdev,
13671 u32 portid, u32 seq, int flags,
13676 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
13680 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13681 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13682 wdev->netdev->ifindex)) ||
13683 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13685 goto nla_put_failure;
13687 /* ignore errors and send incomplete event anyway */
13688 nl80211_add_scan_req(msg, rdev);
13690 genlmsg_end(msg, hdr);
13694 genlmsg_cancel(msg, hdr);
13699 nl80211_prep_sched_scan_msg(struct sk_buff *msg,
13700 struct cfg80211_sched_scan_request *req, u32 cmd)
13704 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13708 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
13709 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
13710 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
13711 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
13713 goto nla_put_failure;
13715 genlmsg_end(msg, hdr);
13719 genlmsg_cancel(msg, hdr);
13723 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
13724 struct wireless_dev *wdev)
13726 struct sk_buff *msg;
13728 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13732 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
13733 NL80211_CMD_TRIGGER_SCAN) < 0) {
13738 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13739 NL80211_MCGRP_SCAN, GFP_KERNEL);
13742 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13743 struct wireless_dev *wdev, bool aborted)
13745 struct sk_buff *msg;
13747 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13751 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
13752 aborted ? NL80211_CMD_SCAN_ABORTED :
13753 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
13761 /* send message created by nl80211_build_scan_msg() */
13762 void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13763 struct sk_buff *msg)
13768 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13769 NL80211_MCGRP_SCAN, GFP_KERNEL);
13772 void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
13774 struct sk_buff *msg;
13776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13780 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
13785 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
13786 NL80211_MCGRP_SCAN, GFP_KERNEL);
13789 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13790 struct regulatory_request *request)
13792 /* Userspace can always count this one always being set */
13793 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13794 goto nla_put_failure;
13796 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13797 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13798 NL80211_REGDOM_TYPE_WORLD))
13799 goto nla_put_failure;
13800 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13801 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13802 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13803 goto nla_put_failure;
13804 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13805 request->intersect) {
13806 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13807 NL80211_REGDOM_TYPE_INTERSECTION))
13808 goto nla_put_failure;
13810 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13811 NL80211_REGDOM_TYPE_COUNTRY) ||
13812 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13814 goto nla_put_failure;
13817 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13818 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13821 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13822 goto nla_put_failure;
13825 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13826 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13827 goto nla_put_failure;
13837 * This can happen on global regulatory changes or device specific settings
13838 * based on custom regulatory domains.
13840 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13841 struct regulatory_request *request)
13843 struct sk_buff *msg;
13846 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13850 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13856 if (nl80211_reg_change_event_fill(msg, request) == false)
13857 goto nla_put_failure;
13859 genlmsg_end(msg, hdr);
13862 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
13863 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
13872 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13873 struct net_device *netdev,
13874 const u8 *buf, size_t len,
13875 enum nl80211_commands cmd, gfp_t gfp,
13878 struct sk_buff *msg;
13881 msg = nlmsg_new(100 + len, gfp);
13885 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13891 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13892 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13893 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13894 goto nla_put_failure;
13896 if (uapsd_queues >= 0) {
13897 struct nlattr *nla_wmm =
13898 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13900 goto nla_put_failure;
13902 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13904 goto nla_put_failure;
13906 nla_nest_end(msg, nla_wmm);
13909 genlmsg_end(msg, hdr);
13911 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13912 NL80211_MCGRP_MLME, gfp);
13919 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
13920 struct net_device *netdev, const u8 *buf,
13921 size_t len, gfp_t gfp)
13923 nl80211_send_mlme_event(rdev, netdev, buf, len,
13924 NL80211_CMD_AUTHENTICATE, gfp, -1);
13927 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13928 struct net_device *netdev, const u8 *buf,
13929 size_t len, gfp_t gfp, int uapsd_queues)
13931 nl80211_send_mlme_event(rdev, netdev, buf, len,
13932 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
13935 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
13936 struct net_device *netdev, const u8 *buf,
13937 size_t len, gfp_t gfp)
13939 nl80211_send_mlme_event(rdev, netdev, buf, len,
13940 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
13943 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13944 struct net_device *netdev, const u8 *buf,
13945 size_t len, gfp_t gfp)
13947 nl80211_send_mlme_event(rdev, netdev, buf, len,
13948 NL80211_CMD_DISASSOCIATE, gfp, -1);
13951 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13954 struct wireless_dev *wdev = dev->ieee80211_ptr;
13955 struct wiphy *wiphy = wdev->wiphy;
13956 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13957 const struct ieee80211_mgmt *mgmt = (void *)buf;
13960 if (WARN_ON(len < 2))
13963 if (ieee80211_is_deauth(mgmt->frame_control))
13964 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13966 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
13968 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
13969 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
13971 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
13973 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13974 struct net_device *netdev, int cmd,
13975 const u8 *addr, gfp_t gfp)
13977 struct sk_buff *msg;
13980 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13984 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13990 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13991 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13992 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13993 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13994 goto nla_put_failure;
13996 genlmsg_end(msg, hdr);
13998 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13999 NL80211_MCGRP_MLME, gfp);
14006 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
14007 struct net_device *netdev, const u8 *addr,
14010 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
14014 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
14015 struct net_device *netdev, const u8 *addr,
14018 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
14022 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
14023 struct net_device *netdev,
14024 struct cfg80211_connect_resp_params *cr,
14027 struct sk_buff *msg;
14030 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
14031 cr->fils_kek_len + cr->pmk_len +
14032 (cr->pmkid ? WLAN_PMKID_LEN : 0), gfp);
14036 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
14042 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14043 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14045 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
14046 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
14047 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
14050 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
14051 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
14052 cr->timeout_reason))) ||
14054 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
14056 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
14058 (cr->update_erp_next_seq_num &&
14059 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
14060 cr->fils_erp_next_seq_num)) ||
14061 (cr->status == WLAN_STATUS_SUCCESS &&
14063 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils_kek_len,
14066 nla_put(msg, NL80211_ATTR_PMK, cr->pmk_len, cr->pmk)) ||
14068 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->pmkid)))))
14069 goto nla_put_failure;
14071 genlmsg_end(msg, hdr);
14073 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14074 NL80211_MCGRP_MLME, gfp);
14081 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
14082 struct net_device *netdev,
14083 struct cfg80211_roam_info *info, gfp_t gfp)
14085 struct sk_buff *msg;
14087 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
14089 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len, gfp);
14093 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
14099 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14100 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14101 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
14103 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
14106 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
14108 goto nla_put_failure;
14110 genlmsg_end(msg, hdr);
14112 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14113 NL80211_MCGRP_MLME, gfp);
14120 void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
14121 struct net_device *netdev, const u8 *bssid)
14123 struct sk_buff *msg;
14126 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14130 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PORT_AUTHORIZED);
14136 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14137 goto nla_put_failure;
14139 genlmsg_end(msg, hdr);
14141 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14142 NL80211_MCGRP_MLME, GFP_KERNEL);
14149 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
14150 struct net_device *netdev, u16 reason,
14151 const u8 *ie, size_t ie_len, bool from_ap)
14153 struct sk_buff *msg;
14156 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
14160 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
14166 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14167 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14169 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
14171 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
14172 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
14173 goto nla_put_failure;
14175 genlmsg_end(msg, hdr);
14177 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14178 NL80211_MCGRP_MLME, GFP_KERNEL);
14185 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
14186 struct net_device *netdev, const u8 *bssid,
14189 struct sk_buff *msg;
14192 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14196 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
14202 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14203 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14204 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14205 goto nla_put_failure;
14207 genlmsg_end(msg, hdr);
14209 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14210 NL80211_MCGRP_MLME, gfp);
14217 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
14218 const u8* ie, u8 ie_len, gfp_t gfp)
14220 struct wireless_dev *wdev = dev->ieee80211_ptr;
14221 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14222 struct sk_buff *msg;
14225 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
14228 trace_cfg80211_notify_new_peer_candidate(dev, addr);
14230 msg = nlmsg_new(100 + ie_len, gfp);
14234 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
14240 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14241 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14242 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
14244 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
14245 goto nla_put_failure;
14247 genlmsg_end(msg, hdr);
14249 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14250 NL80211_MCGRP_MLME, gfp);
14256 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
14258 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
14259 struct net_device *netdev, const u8 *addr,
14260 enum nl80211_key_type key_type, int key_id,
14261 const u8 *tsc, gfp_t gfp)
14263 struct sk_buff *msg;
14266 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14270 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
14276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14277 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14278 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
14279 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
14281 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
14282 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
14283 goto nla_put_failure;
14285 genlmsg_end(msg, hdr);
14287 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14288 NL80211_MCGRP_MLME, gfp);
14295 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
14296 struct ieee80211_channel *channel_before,
14297 struct ieee80211_channel *channel_after)
14299 struct sk_buff *msg;
14301 struct nlattr *nl_freq;
14303 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
14307 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
14314 * Since we are applying the beacon hint to a wiphy we know its
14315 * wiphy_idx is valid
14317 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
14318 goto nla_put_failure;
14321 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
14323 goto nla_put_failure;
14324 if (nl80211_msg_put_channel(msg, channel_before, false))
14325 goto nla_put_failure;
14326 nla_nest_end(msg, nl_freq);
14329 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
14331 goto nla_put_failure;
14332 if (nl80211_msg_put_channel(msg, channel_after, false))
14333 goto nla_put_failure;
14334 nla_nest_end(msg, nl_freq);
14336 genlmsg_end(msg, hdr);
14339 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
14340 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
14349 static void nl80211_send_remain_on_chan_event(
14350 int cmd, struct cfg80211_registered_device *rdev,
14351 struct wireless_dev *wdev, u64 cookie,
14352 struct ieee80211_channel *chan,
14353 unsigned int duration, gfp_t gfp)
14355 struct sk_buff *msg;
14358 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14362 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14368 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14369 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14370 wdev->netdev->ifindex)) ||
14371 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14372 NL80211_ATTR_PAD) ||
14373 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
14374 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
14375 NL80211_CHAN_NO_HT) ||
14376 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14378 goto nla_put_failure;
14380 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
14381 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
14382 goto nla_put_failure;
14384 genlmsg_end(msg, hdr);
14386 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14387 NL80211_MCGRP_MLME, gfp);
14394 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
14395 struct ieee80211_channel *chan,
14396 unsigned int duration, gfp_t gfp)
14398 struct wiphy *wiphy = wdev->wiphy;
14399 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14401 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
14402 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
14403 rdev, wdev, cookie, chan,
14406 EXPORT_SYMBOL(cfg80211_ready_on_channel);
14408 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
14409 struct ieee80211_channel *chan,
14412 struct wiphy *wiphy = wdev->wiphy;
14413 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14415 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
14416 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
14417 rdev, wdev, cookie, chan, 0, gfp);
14419 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
14421 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
14422 struct station_info *sinfo, gfp_t gfp)
14424 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14425 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14426 struct sk_buff *msg;
14428 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
14430 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14434 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
14435 rdev, dev, mac_addr, sinfo) < 0) {
14440 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14441 NL80211_MCGRP_MLME, gfp);
14443 EXPORT_SYMBOL(cfg80211_new_sta);
14445 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
14446 struct station_info *sinfo, gfp_t gfp)
14448 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14449 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14450 struct sk_buff *msg;
14451 struct station_info empty_sinfo = {};
14454 sinfo = &empty_sinfo;
14456 trace_cfg80211_del_sta(dev, mac_addr);
14458 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14462 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
14463 rdev, dev, mac_addr, sinfo) < 0) {
14468 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14469 NL80211_MCGRP_MLME, gfp);
14471 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
14473 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
14474 enum nl80211_connect_failed_reason reason,
14477 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14478 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14479 struct sk_buff *msg;
14482 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
14486 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
14492 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14493 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
14494 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
14495 goto nla_put_failure;
14497 genlmsg_end(msg, hdr);
14499 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14500 NL80211_MCGRP_MLME, gfp);
14506 EXPORT_SYMBOL(cfg80211_conn_failed);
14508 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
14509 const u8 *addr, gfp_t gfp)
14511 struct wireless_dev *wdev = dev->ieee80211_ptr;
14512 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14513 struct sk_buff *msg;
14515 u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid);
14520 msg = nlmsg_new(100, gfp);
14524 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14530 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14531 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14532 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14533 goto nla_put_failure;
14535 genlmsg_end(msg, hdr);
14536 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14544 bool cfg80211_rx_spurious_frame(struct net_device *dev,
14545 const u8 *addr, gfp_t gfp)
14547 struct wireless_dev *wdev = dev->ieee80211_ptr;
14550 trace_cfg80211_rx_spurious_frame(dev, addr);
14552 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14553 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
14554 trace_cfg80211_return_bool(false);
14557 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
14559 trace_cfg80211_return_bool(ret);
14562 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
14564 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
14565 const u8 *addr, gfp_t gfp)
14567 struct wireless_dev *wdev = dev->ieee80211_ptr;
14570 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
14572 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14573 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
14574 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
14575 trace_cfg80211_return_bool(false);
14578 ret = __nl80211_unexpected_frame(dev,
14579 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
14581 trace_cfg80211_return_bool(ret);
14584 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
14586 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
14587 struct wireless_dev *wdev, u32 nlportid,
14588 int freq, int sig_dbm,
14589 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
14591 struct net_device *netdev = wdev->netdev;
14592 struct sk_buff *msg;
14595 msg = nlmsg_new(100 + len, gfp);
14599 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14605 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14606 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14607 netdev->ifindex)) ||
14608 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14609 NL80211_ATTR_PAD) ||
14610 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14612 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14613 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14615 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
14616 goto nla_put_failure;
14618 genlmsg_end(msg, hdr);
14620 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14627 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
14628 const u8 *buf, size_t len, bool ack, gfp_t gfp)
14630 struct wiphy *wiphy = wdev->wiphy;
14631 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14632 struct net_device *netdev = wdev->netdev;
14633 struct sk_buff *msg;
14636 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
14638 msg = nlmsg_new(100 + len, gfp);
14642 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
14648 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14649 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14650 netdev->ifindex)) ||
14651 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14652 NL80211_ATTR_PAD) ||
14653 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14654 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14655 NL80211_ATTR_PAD) ||
14656 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
14657 goto nla_put_failure;
14659 genlmsg_end(msg, hdr);
14661 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14662 NL80211_MCGRP_MLME, gfp);
14668 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
14670 static int __nl80211_rx_control_port(struct net_device *dev,
14671 const u8 *buf, size_t len,
14672 const u8 *addr, u16 proto,
14673 bool unencrypted, gfp_t gfp)
14675 struct wireless_dev *wdev = dev->ieee80211_ptr;
14676 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14677 struct sk_buff *msg;
14679 u32 nlportid = READ_ONCE(wdev->conn_owner_nlportid);
14684 msg = nlmsg_new(100 + len, gfp);
14688 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONTROL_PORT_FRAME);
14694 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14695 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14696 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14697 NL80211_ATTR_PAD) ||
14698 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14699 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
14700 nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, proto) ||
14701 (unencrypted && nla_put_flag(msg,
14702 NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
14703 goto nla_put_failure;
14705 genlmsg_end(msg, hdr);
14707 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14714 bool cfg80211_rx_control_port(struct net_device *dev,
14715 const u8 *buf, size_t len,
14716 const u8 *addr, u16 proto, bool unencrypted)
14720 trace_cfg80211_rx_control_port(dev, buf, len, addr, proto, unencrypted);
14721 ret = __nl80211_rx_control_port(dev, buf, len, addr, proto,
14722 unencrypted, GFP_ATOMIC);
14723 trace_cfg80211_return_bool(ret == 0);
14726 EXPORT_SYMBOL(cfg80211_rx_control_port);
14728 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
14729 const char *mac, gfp_t gfp)
14731 struct wireless_dev *wdev = dev->ieee80211_ptr;
14732 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14733 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14739 cb = (void **)msg->cb;
14741 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
14747 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14748 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
14749 goto nla_put_failure;
14751 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
14752 goto nla_put_failure;
14754 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
14756 goto nla_put_failure;
14766 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
14768 void **cb = (void **)msg->cb;
14769 struct cfg80211_registered_device *rdev = cb[2];
14771 nla_nest_end(msg, cb[1]);
14772 genlmsg_end(msg, cb[0]);
14774 memset(msg->cb, 0, sizeof(msg->cb));
14776 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14777 NL80211_MCGRP_MLME, gfp);
14780 void cfg80211_cqm_rssi_notify(struct net_device *dev,
14781 enum nl80211_cqm_rssi_threshold_event rssi_event,
14782 s32 rssi_level, gfp_t gfp)
14784 struct sk_buff *msg;
14785 struct wireless_dev *wdev = dev->ieee80211_ptr;
14786 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14788 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
14790 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
14791 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
14794 if (wdev->cqm_config) {
14795 wdev->cqm_config->last_rssi_event_value = rssi_level;
14797 cfg80211_cqm_rssi_update(rdev, dev);
14799 if (rssi_level == 0)
14800 rssi_level = wdev->cqm_config->last_rssi_event_value;
14803 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14807 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
14809 goto nla_put_failure;
14811 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
14813 goto nla_put_failure;
14815 cfg80211_send_cqm(msg, gfp);
14822 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
14824 void cfg80211_cqm_txe_notify(struct net_device *dev,
14825 const u8 *peer, u32 num_packets,
14826 u32 rate, u32 intvl, gfp_t gfp)
14828 struct sk_buff *msg;
14830 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14834 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14835 goto nla_put_failure;
14837 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14838 goto nla_put_failure;
14840 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14841 goto nla_put_failure;
14843 cfg80211_send_cqm(msg, gfp);
14849 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14851 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14852 const u8 *peer, u32 num_packets, gfp_t gfp)
14854 struct sk_buff *msg;
14856 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14858 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14862 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14863 goto nla_put_failure;
14865 cfg80211_send_cqm(msg, gfp);
14871 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14873 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14875 struct sk_buff *msg;
14877 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14881 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14882 goto nla_put_failure;
14884 cfg80211_send_cqm(msg, gfp);
14890 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14892 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14893 struct net_device *netdev, const u8 *bssid,
14894 const u8 *replay_ctr, gfp_t gfp)
14896 struct sk_buff *msg;
14897 struct nlattr *rekey_attr;
14900 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14904 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14910 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14911 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14912 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14913 goto nla_put_failure;
14915 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14917 goto nla_put_failure;
14919 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14920 NL80211_REPLAY_CTR_LEN, replay_ctr))
14921 goto nla_put_failure;
14923 nla_nest_end(msg, rekey_attr);
14925 genlmsg_end(msg, hdr);
14927 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14928 NL80211_MCGRP_MLME, gfp);
14935 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14936 const u8 *replay_ctr, gfp_t gfp)
14938 struct wireless_dev *wdev = dev->ieee80211_ptr;
14939 struct wiphy *wiphy = wdev->wiphy;
14940 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14942 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14943 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14945 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14948 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14949 struct net_device *netdev, int index,
14950 const u8 *bssid, bool preauth, gfp_t gfp)
14952 struct sk_buff *msg;
14953 struct nlattr *attr;
14956 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14960 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14966 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14967 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14968 goto nla_put_failure;
14970 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14972 goto nla_put_failure;
14974 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14975 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14977 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14978 goto nla_put_failure;
14980 nla_nest_end(msg, attr);
14982 genlmsg_end(msg, hdr);
14984 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14985 NL80211_MCGRP_MLME, gfp);
14992 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14993 const u8 *bssid, bool preauth, gfp_t gfp)
14995 struct wireless_dev *wdev = dev->ieee80211_ptr;
14996 struct wiphy *wiphy = wdev->wiphy;
14997 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14999 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
15000 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
15002 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
15004 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
15005 struct net_device *netdev,
15006 struct cfg80211_chan_def *chandef,
15008 enum nl80211_commands notif,
15011 struct sk_buff *msg;
15014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15018 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
15024 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
15025 goto nla_put_failure;
15027 if (nl80211_send_chandef(msg, chandef))
15028 goto nla_put_failure;
15030 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
15031 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
15032 goto nla_put_failure;
15034 genlmsg_end(msg, hdr);
15036 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15037 NL80211_MCGRP_MLME, gfp);
15044 void cfg80211_ch_switch_notify(struct net_device *dev,
15045 struct cfg80211_chan_def *chandef)
15047 struct wireless_dev *wdev = dev->ieee80211_ptr;
15048 struct wiphy *wiphy = wdev->wiphy;
15049 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15051 ASSERT_WDEV_LOCK(wdev);
15053 trace_cfg80211_ch_switch_notify(dev, chandef);
15055 wdev->chandef = *chandef;
15056 wdev->preset_chandef = *chandef;
15057 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
15058 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
15060 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
15062 void cfg80211_ch_switch_started_notify(struct net_device *dev,
15063 struct cfg80211_chan_def *chandef,
15066 struct wireless_dev *wdev = dev->ieee80211_ptr;
15067 struct wiphy *wiphy = wdev->wiphy;
15068 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15070 trace_cfg80211_ch_switch_started_notify(dev, chandef);
15072 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
15073 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
15075 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
15078 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
15079 const struct cfg80211_chan_def *chandef,
15080 enum nl80211_radar_event event,
15081 struct net_device *netdev, gfp_t gfp)
15083 struct sk_buff *msg;
15086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15090 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
15096 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
15097 goto nla_put_failure;
15099 /* NOP and radar events don't need a netdev parameter */
15101 struct wireless_dev *wdev = netdev->ieee80211_ptr;
15103 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15104 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15106 goto nla_put_failure;
15109 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
15110 goto nla_put_failure;
15112 if (nl80211_send_chandef(msg, chandef))
15113 goto nla_put_failure;
15115 genlmsg_end(msg, hdr);
15117 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15118 NL80211_MCGRP_MLME, gfp);
15125 void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac,
15126 struct sta_opmode_info *sta_opmode,
15129 struct sk_buff *msg;
15130 struct wireless_dev *wdev = dev->ieee80211_ptr;
15131 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15141 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STA_OPMODE_CHANGED);
15147 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
15148 goto nla_put_failure;
15150 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
15151 goto nla_put_failure;
15153 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
15154 goto nla_put_failure;
15156 if ((sta_opmode->changed & STA_OPMODE_SMPS_MODE_CHANGED) &&
15157 nla_put_u8(msg, NL80211_ATTR_SMPS_MODE, sta_opmode->smps_mode))
15158 goto nla_put_failure;
15160 if ((sta_opmode->changed & STA_OPMODE_MAX_BW_CHANGED) &&
15161 nla_put_u8(msg, NL80211_ATTR_CHANNEL_WIDTH, sta_opmode->bw))
15162 goto nla_put_failure;
15164 if ((sta_opmode->changed & STA_OPMODE_N_SS_CHANGED) &&
15165 nla_put_u8(msg, NL80211_ATTR_NSS, sta_opmode->rx_nss))
15166 goto nla_put_failure;
15168 genlmsg_end(msg, hdr);
15170 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15171 NL80211_MCGRP_MLME, gfp);
15178 EXPORT_SYMBOL(cfg80211_sta_opmode_change_notify);
15180 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
15181 u64 cookie, bool acked, s32 ack_signal,
15182 bool is_valid_ack_signal, gfp_t gfp)
15184 struct wireless_dev *wdev = dev->ieee80211_ptr;
15185 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15186 struct sk_buff *msg;
15189 trace_cfg80211_probe_status(dev, addr, cookie, acked);
15191 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15196 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
15202 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15203 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15204 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
15205 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
15206 NL80211_ATTR_PAD) ||
15207 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)) ||
15208 (is_valid_ack_signal && nla_put_s32(msg, NL80211_ATTR_ACK_SIGNAL,
15210 goto nla_put_failure;
15212 genlmsg_end(msg, hdr);
15214 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15215 NL80211_MCGRP_MLME, gfp);
15221 EXPORT_SYMBOL(cfg80211_probe_status);
15223 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
15224 const u8 *frame, size_t len,
15225 int freq, int sig_dbm)
15227 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15228 struct sk_buff *msg;
15230 struct cfg80211_beacon_registration *reg;
15232 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
15234 spin_lock_bh(&rdev->beacon_registrations_lock);
15235 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
15236 msg = nlmsg_new(len + 100, GFP_ATOMIC);
15238 spin_unlock_bh(&rdev->beacon_registrations_lock);
15242 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
15244 goto nla_put_failure;
15246 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15248 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
15250 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
15251 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
15252 goto nla_put_failure;
15254 genlmsg_end(msg, hdr);
15256 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
15258 spin_unlock_bh(&rdev->beacon_registrations_lock);
15262 spin_unlock_bh(&rdev->beacon_registrations_lock);
15265 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
15268 static int cfg80211_net_detect_results(struct sk_buff *msg,
15269 struct cfg80211_wowlan_wakeup *wakeup)
15271 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
15272 struct nlattr *nl_results, *nl_match, *nl_freqs;
15275 nl_results = nla_nest_start(
15276 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
15280 for (i = 0; i < nd->n_matches; i++) {
15281 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
15283 nl_match = nla_nest_start(msg, i);
15287 /* The SSID attribute is optional in nl80211, but for
15288 * simplicity reasons it's always present in the
15289 * cfg80211 structure. If a driver can't pass the
15290 * SSID, that needs to be changed. A zero length SSID
15291 * is still a valid SSID (wildcard), so it cannot be
15292 * used for this purpose.
15294 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
15295 match->ssid.ssid)) {
15296 nla_nest_cancel(msg, nl_match);
15300 if (match->n_channels) {
15301 nl_freqs = nla_nest_start(
15302 msg, NL80211_ATTR_SCAN_FREQUENCIES);
15304 nla_nest_cancel(msg, nl_match);
15308 for (j = 0; j < match->n_channels; j++) {
15309 if (nla_put_u32(msg, j, match->channels[j])) {
15310 nla_nest_cancel(msg, nl_freqs);
15311 nla_nest_cancel(msg, nl_match);
15316 nla_nest_end(msg, nl_freqs);
15319 nla_nest_end(msg, nl_match);
15323 nla_nest_end(msg, nl_results);
15327 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
15328 struct cfg80211_wowlan_wakeup *wakeup,
15331 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15332 struct sk_buff *msg;
15336 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
15339 size += wakeup->packet_present_len;
15341 msg = nlmsg_new(size, gfp);
15345 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
15349 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15350 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15354 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
15355 wdev->netdev->ifindex))
15359 struct nlattr *reasons;
15361 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
15365 if (wakeup->disconnect &&
15366 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
15368 if (wakeup->magic_pkt &&
15369 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
15371 if (wakeup->gtk_rekey_failure &&
15372 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
15374 if (wakeup->eap_identity_req &&
15375 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
15377 if (wakeup->four_way_handshake &&
15378 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
15380 if (wakeup->rfkill_release &&
15381 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
15384 if (wakeup->pattern_idx >= 0 &&
15385 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
15386 wakeup->pattern_idx))
15389 if (wakeup->tcp_match &&
15390 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
15393 if (wakeup->tcp_connlost &&
15394 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
15397 if (wakeup->tcp_nomoretokens &&
15399 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
15402 if (wakeup->packet) {
15403 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
15404 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
15406 if (!wakeup->packet_80211) {
15408 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
15410 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
15413 if (wakeup->packet_len &&
15414 nla_put_u32(msg, len_attr, wakeup->packet_len))
15417 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
15422 if (wakeup->net_detect &&
15423 cfg80211_net_detect_results(msg, wakeup))
15426 nla_nest_end(msg, reasons);
15429 genlmsg_end(msg, hdr);
15431 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15432 NL80211_MCGRP_MLME, gfp);
15438 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
15441 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
15442 enum nl80211_tdls_operation oper,
15443 u16 reason_code, gfp_t gfp)
15445 struct wireless_dev *wdev = dev->ieee80211_ptr;
15446 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15447 struct sk_buff *msg;
15450 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
15453 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15457 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
15463 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15464 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15465 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
15466 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
15467 (reason_code > 0 &&
15468 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
15469 goto nla_put_failure;
15471 genlmsg_end(msg, hdr);
15473 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15474 NL80211_MCGRP_MLME, gfp);
15480 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
15482 static int nl80211_netlink_notify(struct notifier_block * nb,
15483 unsigned long state,
15486 struct netlink_notify *notify = _notify;
15487 struct cfg80211_registered_device *rdev;
15488 struct wireless_dev *wdev;
15489 struct cfg80211_beacon_registration *reg, *tmp;
15491 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
15492 return NOTIFY_DONE;
15496 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
15497 struct cfg80211_sched_scan_request *sched_scan_req;
15499 list_for_each_entry_rcu(sched_scan_req,
15500 &rdev->sched_scan_req_list,
15502 if (sched_scan_req->owner_nlportid == notify->portid) {
15503 sched_scan_req->nl_owner_dead = true;
15504 schedule_work(&rdev->sched_scan_stop_wk);
15508 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15509 cfg80211_mlme_unregister_socket(wdev, notify->portid);
15511 if (wdev->owner_nlportid == notify->portid) {
15512 wdev->nl_owner_dead = true;
15513 schedule_work(&rdev->destroy_work);
15514 } else if (wdev->conn_owner_nlportid == notify->portid) {
15515 schedule_work(&wdev->disconnect_wk);
15519 spin_lock_bh(&rdev->beacon_registrations_lock);
15520 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
15522 if (reg->nlportid == notify->portid) {
15523 list_del(®->list);
15528 spin_unlock_bh(&rdev->beacon_registrations_lock);
15534 * It is possible that the user space process that is controlling the
15535 * indoor setting disappeared, so notify the regulatory core.
15537 regulatory_netlink_notify(notify->portid);
15541 static struct notifier_block nl80211_netlink_notifier = {
15542 .notifier_call = nl80211_netlink_notify,
15545 void cfg80211_ft_event(struct net_device *netdev,
15546 struct cfg80211_ft_event_params *ft_event)
15548 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
15549 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15550 struct sk_buff *msg;
15553 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
15555 if (!ft_event->target_ap)
15558 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
15562 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
15566 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15567 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15568 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
15571 if (ft_event->ies &&
15572 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
15574 if (ft_event->ric_ies &&
15575 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
15576 ft_event->ric_ies))
15579 genlmsg_end(msg, hdr);
15581 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15582 NL80211_MCGRP_MLME, GFP_KERNEL);
15587 EXPORT_SYMBOL(cfg80211_ft_event);
15589 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
15591 struct cfg80211_registered_device *rdev;
15592 struct sk_buff *msg;
15596 rdev = wiphy_to_rdev(wdev->wiphy);
15597 if (!rdev->crit_proto_nlportid)
15600 nlportid = rdev->crit_proto_nlportid;
15601 rdev->crit_proto_nlportid = 0;
15603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15607 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
15609 goto nla_put_failure;
15611 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15612 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15614 goto nla_put_failure;
15616 genlmsg_end(msg, hdr);
15618 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15624 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
15626 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
15628 struct wiphy *wiphy = wdev->wiphy;
15629 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15630 struct sk_buff *msg;
15633 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
15637 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
15641 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15642 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
15643 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15647 genlmsg_end(msg, hdr);
15649 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
15650 NL80211_MCGRP_MLME, GFP_KERNEL);
15656 int cfg80211_external_auth_request(struct net_device *dev,
15657 struct cfg80211_external_auth_params *params,
15660 struct wireless_dev *wdev = dev->ieee80211_ptr;
15661 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15662 struct sk_buff *msg;
15665 if (!wdev->conn_owner_nlportid)
15668 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15672 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_EXTERNAL_AUTH);
15674 goto nla_put_failure;
15676 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15677 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15678 nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, params->key_mgmt_suite) ||
15679 nla_put_u32(msg, NL80211_ATTR_EXTERNAL_AUTH_ACTION,
15681 nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, params->bssid) ||
15682 nla_put(msg, NL80211_ATTR_SSID, params->ssid.ssid_len,
15683 params->ssid.ssid))
15684 goto nla_put_failure;
15686 genlmsg_end(msg, hdr);
15687 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
15688 wdev->conn_owner_nlportid);
15695 EXPORT_SYMBOL(cfg80211_external_auth_request);
15697 /* initialisation/exit functions */
15699 int __init nl80211_init(void)
15703 err = genl_register_family(&nl80211_fam);
15707 err = netlink_register_notifier(&nl80211_netlink_notifier);
15713 genl_unregister_family(&nl80211_fam);
15717 void nl80211_exit(void)
15719 netlink_unregister_notifier(&nl80211_netlink_notifier);
15720 genl_unregister_family(&nl80211_fam);