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_PRIVACY] = { .type = NLA_FLAG },
291 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
292 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
293 [NL80211_ATTR_PID] = { .type = NLA_U32 },
294 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
295 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
296 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
297 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
298 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
299 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
300 .len = IEEE80211_MAX_DATA_LEN },
301 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
302 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
303 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
304 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
305 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
306 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
307 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
308 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
309 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
310 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
311 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
312 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
313 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
314 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
315 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
316 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
317 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
318 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
319 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
320 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
321 .len = IEEE80211_MAX_DATA_LEN },
322 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
324 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
325 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
326 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
327 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
328 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
329 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
330 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
331 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
332 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
333 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
334 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
336 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
337 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
338 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
339 .len = NL80211_HT_CAPABILITY_LEN
341 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
342 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
343 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
344 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
345 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
346 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
347 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
348 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
349 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
350 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
351 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
352 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
353 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
354 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
355 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
356 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
357 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
358 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
359 .len = NL80211_VHT_CAPABILITY_LEN,
361 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
362 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
363 .len = IEEE80211_MAX_DATA_LEN },
364 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
365 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
366 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
367 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
368 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
369 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
370 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
371 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
372 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
373 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
374 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
375 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
376 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
377 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
378 .len = IEEE80211_QOS_MAP_LEN_MAX },
379 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
380 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
381 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
382 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
383 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
384 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
385 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
386 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
387 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
388 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
389 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
390 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
391 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
392 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
393 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
394 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
395 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
396 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
397 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
398 .len = VHT_MUMIMO_GROUPS_DATA_LEN
400 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
401 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
402 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
403 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
404 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
405 .len = FILS_MAX_KEK_LEN },
406 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
407 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
408 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
409 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
410 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
411 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
413 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
414 [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
415 .len = FILS_ERP_MAX_USERNAME_LEN },
416 [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
417 .len = FILS_ERP_MAX_REALM_LEN },
418 [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
419 [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
420 .len = FILS_ERP_MAX_RRK_LEN },
421 [NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 },
422 [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
423 [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
424 [NL80211_ATTR_EXTERNAL_AUTH_SUPPORT] = { .type = NLA_FLAG },
427 /* policy for the key attributes */
428 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
429 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
430 [NL80211_KEY_IDX] = { .type = NLA_U8 },
431 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
432 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
433 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
434 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
435 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
436 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
439 /* policy for the key default flags */
440 static const struct nla_policy
441 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
442 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
443 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
447 /* policy for WoWLAN attributes */
448 static const struct nla_policy
449 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
450 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
451 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
452 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
453 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
454 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
455 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
456 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
457 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
458 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
459 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
462 static const struct nla_policy
463 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
464 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
465 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
466 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
467 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
468 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
469 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
470 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
471 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
473 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
474 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
476 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
477 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
478 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
480 #endif /* CONFIG_PM */
482 /* policy for coalesce rule attributes */
483 static const struct nla_policy
484 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
485 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
486 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
487 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
490 /* policy for GTK rekey offload attributes */
491 static const struct nla_policy
492 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
493 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
494 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
495 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
498 static const struct nla_policy
499 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
500 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
501 .len = IEEE80211_MAX_SSID_LEN },
502 [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN },
503 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
506 static const struct nla_policy
507 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
508 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
509 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
512 static const struct nla_policy
513 nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
514 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
515 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
516 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
517 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
521 /* policy for NAN function attributes */
522 static const struct nla_policy
523 nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
524 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
525 [NL80211_NAN_FUNC_SERVICE_ID] = {
526 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
527 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
528 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
529 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
530 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
531 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
532 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
533 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
534 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
535 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
536 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
537 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
538 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
539 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
540 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
541 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
544 /* policy for Service Response Filter attributes */
545 static const struct nla_policy
546 nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
547 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
548 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
549 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
550 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
551 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
554 /* policy for packet pattern attributes */
555 static const struct nla_policy
556 nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
557 [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
558 [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
559 [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
562 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
563 struct netlink_callback *cb,
564 struct cfg80211_registered_device **rdev,
565 struct wireless_dev **wdev)
570 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
571 genl_family_attrbuf(&nl80211_fam),
572 nl80211_fam.maxattr, nl80211_policy, NULL);
576 *wdev = __cfg80211_wdev_from_attrs(
578 genl_family_attrbuf(&nl80211_fam));
580 return PTR_ERR(*wdev);
581 *rdev = wiphy_to_rdev((*wdev)->wiphy);
582 /* 0 is the first index - add 1 to parse only once */
583 cb->args[0] = (*rdev)->wiphy_idx + 1;
584 cb->args[1] = (*wdev)->identifier;
586 /* subtract the 1 again here */
587 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
588 struct wireless_dev *tmp;
592 *rdev = wiphy_to_rdev(wiphy);
595 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
596 if (tmp->identifier == cb->args[1]) {
610 static bool is_valid_ie_attr(const struct nlattr *attr)
618 pos = nla_data(attr);
639 /* message building helper */
640 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
643 /* since there is no private header just add the generic one */
644 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
647 static int nl80211_msg_put_channel(struct sk_buff *msg,
648 struct ieee80211_channel *chan,
651 /* Some channels must be completely excluded from the
652 * list to protect old user-space tools from breaking
654 if (!large && chan->flags &
655 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
658 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
660 goto nla_put_failure;
662 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
663 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
664 goto nla_put_failure;
665 if (chan->flags & IEEE80211_CHAN_NO_IR) {
666 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
667 goto nla_put_failure;
668 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
669 goto nla_put_failure;
671 if (chan->flags & IEEE80211_CHAN_RADAR) {
672 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
673 goto nla_put_failure;
677 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
679 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
681 goto nla_put_failure;
682 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
684 goto nla_put_failure;
686 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
688 goto nla_put_failure;
693 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
694 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
695 goto nla_put_failure;
696 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
697 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
698 goto nla_put_failure;
699 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
700 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
701 goto nla_put_failure;
702 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
703 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
704 goto nla_put_failure;
705 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
706 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
707 goto nla_put_failure;
708 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
709 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
710 goto nla_put_failure;
711 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
712 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
713 goto nla_put_failure;
714 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
715 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
716 goto nla_put_failure;
719 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
720 DBM_TO_MBM(chan->max_power)))
721 goto nla_put_failure;
729 /* netlink command implementations */
736 bool def_uni, def_multi;
739 static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key,
742 struct nlattr *tb[NL80211_KEY_MAX + 1];
743 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
744 nl80211_key_policy, info->extack);
748 k->def = !!tb[NL80211_KEY_DEFAULT];
749 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
758 if (tb[NL80211_KEY_IDX])
759 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
761 if (tb[NL80211_KEY_DATA]) {
762 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
763 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
766 if (tb[NL80211_KEY_SEQ]) {
767 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
768 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
771 if (tb[NL80211_KEY_CIPHER])
772 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
774 if (tb[NL80211_KEY_TYPE]) {
775 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
776 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
777 return genl_err_attr(info, -EINVAL,
778 tb[NL80211_KEY_TYPE]);
781 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
782 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
784 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
785 tb[NL80211_KEY_DEFAULT_TYPES],
786 nl80211_key_default_policy,
791 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
792 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
798 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
800 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
801 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
802 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
805 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
806 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
807 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
810 if (info->attrs[NL80211_ATTR_KEY_IDX])
811 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
813 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
814 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
816 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
817 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
826 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
827 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
828 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) {
829 GENL_SET_ERR_MSG(info, "key type out of range");
834 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
835 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
836 int err = nla_parse_nested(kdt,
837 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
838 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
839 nl80211_key_default_policy,
844 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
845 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
851 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
855 memset(k, 0, sizeof(*k));
859 if (info->attrs[NL80211_ATTR_KEY])
860 err = nl80211_parse_key_new(info, info->attrs[NL80211_ATTR_KEY], k);
862 err = nl80211_parse_key_old(info, k);
867 if (k->def && k->defmgmt) {
868 GENL_SET_ERR_MSG(info, "key with def && defmgmt is invalid");
873 if (k->def_uni || !k->def_multi) {
874 GENL_SET_ERR_MSG(info, "defmgmt key must be mcast");
881 if (k->idx < 4 || k->idx > 5) {
882 GENL_SET_ERR_MSG(info,
883 "defmgmt key idx not 4 or 5");
887 if (k->idx < 0 || k->idx > 3) {
888 GENL_SET_ERR_MSG(info, "def key idx not 0-3");
892 if (k->idx < 0 || k->idx > 5) {
893 GENL_SET_ERR_MSG(info, "key idx not 0-5");
902 static struct cfg80211_cached_keys *
903 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
904 struct genl_info *info, bool *no_ht)
906 struct nlattr *keys = info->attrs[NL80211_ATTR_KEYS];
907 struct key_parse parse;
909 struct cfg80211_cached_keys *result;
910 int rem, err, def = 0;
911 bool have_key = false;
913 nla_for_each_nested(key, keys, rem) {
921 result = kzalloc(sizeof(*result), GFP_KERNEL);
923 return ERR_PTR(-ENOMEM);
927 nla_for_each_nested(key, keys, rem) {
928 memset(&parse, 0, sizeof(parse));
931 err = nl80211_parse_key_new(info, key, &parse);
937 if (parse.idx < 0 || parse.idx > 3) {
938 GENL_SET_ERR_MSG(info, "key index out of range [0-3]");
943 GENL_SET_ERR_MSG(info,
944 "only one key can be default");
948 result->def = parse.idx;
949 if (!parse.def_uni || !parse.def_multi)
951 } else if (parse.defmgmt)
953 err = cfg80211_validate_key_settings(rdev, &parse.p,
954 parse.idx, false, NULL);
957 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
958 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
959 GENL_SET_ERR_MSG(info, "connect key must be WEP");
963 result->params[parse.idx].cipher = parse.p.cipher;
964 result->params[parse.idx].key_len = parse.p.key_len;
965 result->params[parse.idx].key = result->data[parse.idx];
966 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
968 /* must be WEP key if we got here */
973 if (result->def < 0) {
975 GENL_SET_ERR_MSG(info, "need a default/TX key");
985 static int nl80211_key_allowed(struct wireless_dev *wdev)
987 ASSERT_WDEV_LOCK(wdev);
989 switch (wdev->iftype) {
990 case NL80211_IFTYPE_AP:
991 case NL80211_IFTYPE_AP_VLAN:
992 case NL80211_IFTYPE_P2P_GO:
993 case NL80211_IFTYPE_MESH_POINT:
995 case NL80211_IFTYPE_ADHOC:
996 case NL80211_IFTYPE_STATION:
997 case NL80211_IFTYPE_P2P_CLIENT:
998 if (!wdev->current_bss)
1001 case NL80211_IFTYPE_UNSPECIFIED:
1002 case NL80211_IFTYPE_OCB:
1003 case NL80211_IFTYPE_MONITOR:
1004 case NL80211_IFTYPE_NAN:
1005 case NL80211_IFTYPE_P2P_DEVICE:
1006 case NL80211_IFTYPE_WDS:
1007 case NUM_NL80211_IFTYPES:
1014 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
1017 struct ieee80211_channel *chan;
1021 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
1022 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
1027 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
1029 struct nlattr *nl_modes = nla_nest_start(msg, attr);
1033 goto nla_put_failure;
1037 if ((ifmodes & 1) && nla_put_flag(msg, i))
1038 goto nla_put_failure;
1043 nla_nest_end(msg, nl_modes);
1050 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
1051 struct sk_buff *msg,
1054 struct nlattr *nl_combis;
1057 nl_combis = nla_nest_start(msg,
1058 NL80211_ATTR_INTERFACE_COMBINATIONS);
1060 goto nla_put_failure;
1062 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1063 const struct ieee80211_iface_combination *c;
1064 struct nlattr *nl_combi, *nl_limits;
1066 c = &wiphy->iface_combinations[i];
1068 nl_combi = nla_nest_start(msg, i + 1);
1070 goto nla_put_failure;
1072 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1074 goto nla_put_failure;
1076 for (j = 0; j < c->n_limits; j++) {
1077 struct nlattr *nl_limit;
1079 nl_limit = nla_nest_start(msg, j + 1);
1081 goto nla_put_failure;
1082 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1084 goto nla_put_failure;
1085 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1086 c->limits[j].types))
1087 goto nla_put_failure;
1088 nla_nest_end(msg, nl_limit);
1091 nla_nest_end(msg, nl_limits);
1093 if (c->beacon_int_infra_match &&
1094 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1095 goto nla_put_failure;
1096 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1097 c->num_different_channels) ||
1098 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1100 goto nla_put_failure;
1102 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1103 c->radar_detect_widths) ||
1104 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1105 c->radar_detect_regions)))
1106 goto nla_put_failure;
1107 if (c->beacon_int_min_gcd &&
1108 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1109 c->beacon_int_min_gcd))
1110 goto nla_put_failure;
1112 nla_nest_end(msg, nl_combi);
1115 nla_nest_end(msg, nl_combis);
1123 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1124 struct sk_buff *msg)
1126 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1127 struct nlattr *nl_tcp;
1132 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1136 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1137 tcp->data_payload_max))
1140 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1141 tcp->data_payload_max))
1144 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1147 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1148 sizeof(*tcp->tok), tcp->tok))
1151 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1152 tcp->data_interval_max))
1155 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1156 tcp->wake_payload_max))
1159 nla_nest_end(msg, nl_tcp);
1163 static int nl80211_send_wowlan(struct sk_buff *msg,
1164 struct cfg80211_registered_device *rdev,
1167 struct nlattr *nl_wowlan;
1169 if (!rdev->wiphy.wowlan)
1172 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1176 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1177 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1178 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1179 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1180 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1181 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1182 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1183 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1184 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1185 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1186 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1187 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1188 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1189 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1190 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1191 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1194 if (rdev->wiphy.wowlan->n_patterns) {
1195 struct nl80211_pattern_support pat = {
1196 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1197 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1198 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1199 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1202 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1207 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1208 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1209 rdev->wiphy.wowlan->max_nd_match_sets))
1212 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1215 nla_nest_end(msg, nl_wowlan);
1221 static int nl80211_send_coalesce(struct sk_buff *msg,
1222 struct cfg80211_registered_device *rdev)
1224 struct nl80211_coalesce_rule_support rule;
1226 if (!rdev->wiphy.coalesce)
1229 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1230 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1231 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1232 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1233 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1234 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1236 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1242 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1243 struct ieee80211_supported_band *sband)
1245 struct nlattr *nl_rates, *nl_rate;
1246 struct ieee80211_rate *rate;
1250 if (sband->ht_cap.ht_supported &&
1251 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1252 sizeof(sband->ht_cap.mcs),
1253 &sband->ht_cap.mcs) ||
1254 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1255 sband->ht_cap.cap) ||
1256 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1257 sband->ht_cap.ampdu_factor) ||
1258 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1259 sband->ht_cap.ampdu_density)))
1263 if (sband->vht_cap.vht_supported &&
1264 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1265 sizeof(sband->vht_cap.vht_mcs),
1266 &sband->vht_cap.vht_mcs) ||
1267 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1268 sband->vht_cap.cap)))
1272 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1276 for (i = 0; i < sband->n_bitrates; i++) {
1277 nl_rate = nla_nest_start(msg, i);
1281 rate = &sband->bitrates[i];
1282 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1285 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1287 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1290 nla_nest_end(msg, nl_rate);
1293 nla_nest_end(msg, nl_rates);
1299 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1300 const struct ieee80211_txrx_stypes *mgmt_stypes)
1303 struct nlattr *nl_ftypes, *nl_ifs;
1304 enum nl80211_iftype ift;
1310 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1314 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1315 nl_ftypes = nla_nest_start(msg, ift);
1319 stypes = mgmt_stypes[ift].tx;
1322 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1323 (i << 4) | IEEE80211_FTYPE_MGMT))
1328 nla_nest_end(msg, nl_ftypes);
1331 nla_nest_end(msg, nl_ifs);
1333 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1337 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1338 nl_ftypes = nla_nest_start(msg, ift);
1342 stypes = mgmt_stypes[ift].rx;
1345 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1346 (i << 4) | IEEE80211_FTYPE_MGMT))
1351 nla_nest_end(msg, nl_ftypes);
1353 nla_nest_end(msg, nl_ifs);
1358 #define CMD(op, n) \
1360 if (rdev->ops->op) { \
1362 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1363 goto nla_put_failure; \
1367 static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1368 struct sk_buff *msg)
1373 * do *NOT* add anything into this function, new things need to be
1374 * advertised only to new versions of userspace that can deal with
1375 * the split (and they can't possibly care about new features...
1377 CMD(add_virtual_intf, NEW_INTERFACE);
1378 CMD(change_virtual_intf, SET_INTERFACE);
1379 CMD(add_key, NEW_KEY);
1380 CMD(start_ap, START_AP);
1381 CMD(add_station, NEW_STATION);
1382 CMD(add_mpath, NEW_MPATH);
1383 CMD(update_mesh_config, SET_MESH_CONFIG);
1384 CMD(change_bss, SET_BSS);
1385 CMD(auth, AUTHENTICATE);
1386 CMD(assoc, ASSOCIATE);
1387 CMD(deauth, DEAUTHENTICATE);
1388 CMD(disassoc, DISASSOCIATE);
1389 CMD(join_ibss, JOIN_IBSS);
1390 CMD(join_mesh, JOIN_MESH);
1391 CMD(set_pmksa, SET_PMKSA);
1392 CMD(del_pmksa, DEL_PMKSA);
1393 CMD(flush_pmksa, FLUSH_PMKSA);
1394 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1395 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1396 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1397 CMD(mgmt_tx, FRAME);
1398 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1399 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1401 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1402 goto nla_put_failure;
1404 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1405 rdev->ops->join_mesh) {
1407 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1408 goto nla_put_failure;
1410 CMD(set_wds_peer, SET_WDS_PEER);
1411 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1412 CMD(tdls_mgmt, TDLS_MGMT);
1413 CMD(tdls_oper, TDLS_OPER);
1415 if (rdev->wiphy.max_sched_scan_reqs)
1416 CMD(sched_scan_start, START_SCHED_SCAN);
1417 CMD(probe_client, PROBE_CLIENT);
1418 CMD(set_noack_map, SET_NOACK_MAP);
1419 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1421 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1422 goto nla_put_failure;
1424 CMD(start_p2p_device, START_P2P_DEVICE);
1425 CMD(set_mcast_rate, SET_MCAST_RATE);
1426 #ifdef CONFIG_NL80211_TESTMODE
1427 CMD(testmode_cmd, TESTMODE);
1430 if (rdev->ops->connect || rdev->ops->auth) {
1432 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1433 goto nla_put_failure;
1436 if (rdev->ops->disconnect || rdev->ops->deauth) {
1438 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1439 goto nla_put_failure;
1447 struct nl80211_dump_wiphy_state {
1450 long split_start, band_start, chan_start, capa_start;
1454 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1455 enum nl80211_commands cmd,
1456 struct sk_buff *msg, u32 portid, u32 seq,
1457 int flags, struct nl80211_dump_wiphy_state *state)
1460 struct nlattr *nl_bands, *nl_band;
1461 struct nlattr *nl_freqs, *nl_freq;
1462 struct nlattr *nl_cmds;
1463 enum nl80211_band band;
1464 struct ieee80211_channel *chan;
1466 const struct ieee80211_txrx_stypes *mgmt_stypes =
1467 rdev->wiphy.mgmt_stypes;
1470 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1474 if (WARN_ON(!state))
1477 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1478 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1479 wiphy_name(&rdev->wiphy)) ||
1480 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1481 cfg80211_rdev_list_generation))
1482 goto nla_put_failure;
1484 if (cmd != NL80211_CMD_NEW_WIPHY)
1487 switch (state->split_start) {
1489 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1490 rdev->wiphy.retry_short) ||
1491 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1492 rdev->wiphy.retry_long) ||
1493 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1494 rdev->wiphy.frag_threshold) ||
1495 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1496 rdev->wiphy.rts_threshold) ||
1497 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1498 rdev->wiphy.coverage_class) ||
1499 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1500 rdev->wiphy.max_scan_ssids) ||
1501 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1502 rdev->wiphy.max_sched_scan_ssids) ||
1503 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1504 rdev->wiphy.max_scan_ie_len) ||
1505 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1506 rdev->wiphy.max_sched_scan_ie_len) ||
1507 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1508 rdev->wiphy.max_match_sets) ||
1509 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1510 rdev->wiphy.max_sched_scan_plans) ||
1511 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1512 rdev->wiphy.max_sched_scan_plan_interval) ||
1513 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1514 rdev->wiphy.max_sched_scan_plan_iterations))
1515 goto nla_put_failure;
1517 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1518 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1519 goto nla_put_failure;
1520 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1521 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1522 goto nla_put_failure;
1523 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1524 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1525 goto nla_put_failure;
1526 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1527 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1528 goto nla_put_failure;
1529 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1530 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1531 goto nla_put_failure;
1532 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1533 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1534 goto nla_put_failure;
1535 state->split_start++;
1539 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1540 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1541 rdev->wiphy.cipher_suites))
1542 goto nla_put_failure;
1544 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1545 rdev->wiphy.max_num_pmkids))
1546 goto nla_put_failure;
1548 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1549 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1550 goto nla_put_failure;
1552 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1553 rdev->wiphy.available_antennas_tx) ||
1554 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1555 rdev->wiphy.available_antennas_rx))
1556 goto nla_put_failure;
1558 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1559 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1560 rdev->wiphy.probe_resp_offload))
1561 goto nla_put_failure;
1563 if ((rdev->wiphy.available_antennas_tx ||
1564 rdev->wiphy.available_antennas_rx) &&
1565 rdev->ops->get_antenna) {
1566 u32 tx_ant = 0, rx_ant = 0;
1569 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1571 if (nla_put_u32(msg,
1572 NL80211_ATTR_WIPHY_ANTENNA_TX,
1575 NL80211_ATTR_WIPHY_ANTENNA_RX,
1577 goto nla_put_failure;
1581 state->split_start++;
1585 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1586 rdev->wiphy.interface_modes))
1587 goto nla_put_failure;
1588 state->split_start++;
1592 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1594 goto nla_put_failure;
1596 for (band = state->band_start;
1597 band < NUM_NL80211_BANDS; band++) {
1598 struct ieee80211_supported_band *sband;
1600 sband = rdev->wiphy.bands[band];
1605 nl_band = nla_nest_start(msg, band);
1607 goto nla_put_failure;
1609 switch (state->chan_start) {
1611 if (nl80211_send_band_rateinfo(msg, sband))
1612 goto nla_put_failure;
1613 state->chan_start++;
1617 /* add frequencies */
1618 nl_freqs = nla_nest_start(
1619 msg, NL80211_BAND_ATTR_FREQS);
1621 goto nla_put_failure;
1623 for (i = state->chan_start - 1;
1624 i < sband->n_channels;
1626 nl_freq = nla_nest_start(msg, i);
1628 goto nla_put_failure;
1630 chan = &sband->channels[i];
1632 if (nl80211_msg_put_channel(
1635 goto nla_put_failure;
1637 nla_nest_end(msg, nl_freq);
1641 if (i < sband->n_channels)
1642 state->chan_start = i + 2;
1644 state->chan_start = 0;
1645 nla_nest_end(msg, nl_freqs);
1648 nla_nest_end(msg, nl_band);
1651 /* start again here */
1652 if (state->chan_start)
1657 nla_nest_end(msg, nl_bands);
1659 if (band < NUM_NL80211_BANDS)
1660 state->band_start = band + 1;
1662 state->band_start = 0;
1664 /* if bands & channels are done, continue outside */
1665 if (state->band_start == 0 && state->chan_start == 0)
1666 state->split_start++;
1670 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1672 goto nla_put_failure;
1674 i = nl80211_add_commands_unsplit(rdev, msg);
1676 goto nla_put_failure;
1678 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1679 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1680 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1681 CMD(channel_switch, CHANNEL_SWITCH);
1682 CMD(set_qos_map, SET_QOS_MAP);
1683 if (rdev->wiphy.features &
1684 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1685 CMD(add_tx_ts, ADD_TX_TS);
1686 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
1687 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
1691 nla_nest_end(msg, nl_cmds);
1692 state->split_start++;
1696 if (rdev->ops->remain_on_channel &&
1697 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1699 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1700 rdev->wiphy.max_remain_on_channel_duration))
1701 goto nla_put_failure;
1703 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1704 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1705 goto nla_put_failure;
1707 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1708 goto nla_put_failure;
1709 state->split_start++;
1714 if (nl80211_send_wowlan(msg, rdev, state->split))
1715 goto nla_put_failure;
1716 state->split_start++;
1720 state->split_start++;
1723 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1724 rdev->wiphy.software_iftypes))
1725 goto nla_put_failure;
1727 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1729 goto nla_put_failure;
1731 state->split_start++;
1735 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1736 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1737 rdev->wiphy.ap_sme_capa))
1738 goto nla_put_failure;
1740 features = rdev->wiphy.features;
1742 * We can only add the per-channel limit information if the
1743 * dump is split, otherwise it makes it too big. Therefore
1744 * only advertise it in that case.
1747 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1748 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1749 goto nla_put_failure;
1751 if (rdev->wiphy.ht_capa_mod_mask &&
1752 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1753 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1754 rdev->wiphy.ht_capa_mod_mask))
1755 goto nla_put_failure;
1757 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1758 rdev->wiphy.max_acl_mac_addrs &&
1759 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1760 rdev->wiphy.max_acl_mac_addrs))
1761 goto nla_put_failure;
1764 * Any information below this point is only available to
1765 * applications that can deal with it being split. This
1766 * helps ensure that newly added capabilities don't break
1767 * older tools by overrunning their buffers.
1769 * We still increment split_start so that in the split
1770 * case we'll continue with more data in the next round,
1771 * but break unconditionally so unsplit data stops here.
1773 state->split_start++;
1776 if (rdev->wiphy.extended_capabilities &&
1777 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1778 rdev->wiphy.extended_capabilities_len,
1779 rdev->wiphy.extended_capabilities) ||
1780 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1781 rdev->wiphy.extended_capabilities_len,
1782 rdev->wiphy.extended_capabilities_mask)))
1783 goto nla_put_failure;
1785 if (rdev->wiphy.vht_capa_mod_mask &&
1786 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1787 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1788 rdev->wiphy.vht_capa_mod_mask))
1789 goto nla_put_failure;
1791 state->split_start++;
1794 if (nl80211_send_coalesce(msg, rdev))
1795 goto nla_put_failure;
1797 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1798 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1799 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1800 goto nla_put_failure;
1802 if (rdev->wiphy.max_ap_assoc_sta &&
1803 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1804 rdev->wiphy.max_ap_assoc_sta))
1805 goto nla_put_failure;
1807 state->split_start++;
1810 if (rdev->wiphy.n_vendor_commands) {
1811 const struct nl80211_vendor_cmd_info *info;
1812 struct nlattr *nested;
1814 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1816 goto nla_put_failure;
1818 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1819 info = &rdev->wiphy.vendor_commands[i].info;
1820 if (nla_put(msg, i + 1, sizeof(*info), info))
1821 goto nla_put_failure;
1823 nla_nest_end(msg, nested);
1826 if (rdev->wiphy.n_vendor_events) {
1827 const struct nl80211_vendor_cmd_info *info;
1828 struct nlattr *nested;
1830 nested = nla_nest_start(msg,
1831 NL80211_ATTR_VENDOR_EVENTS);
1833 goto nla_put_failure;
1835 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1836 info = &rdev->wiphy.vendor_events[i];
1837 if (nla_put(msg, i + 1, sizeof(*info), info))
1838 goto nla_put_failure;
1840 nla_nest_end(msg, nested);
1842 state->split_start++;
1845 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1846 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1847 rdev->wiphy.max_num_csa_counters))
1848 goto nla_put_failure;
1850 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1851 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1852 goto nla_put_failure;
1854 if (rdev->wiphy.max_sched_scan_reqs &&
1855 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
1856 rdev->wiphy.max_sched_scan_reqs))
1857 goto nla_put_failure;
1859 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1860 sizeof(rdev->wiphy.ext_features),
1861 rdev->wiphy.ext_features))
1862 goto nla_put_failure;
1864 if (rdev->wiphy.bss_select_support) {
1865 struct nlattr *nested;
1866 u32 bss_select_support = rdev->wiphy.bss_select_support;
1868 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1870 goto nla_put_failure;
1873 while (bss_select_support) {
1874 if ((bss_select_support & 1) &&
1875 nla_put_flag(msg, i))
1876 goto nla_put_failure;
1878 bss_select_support >>= 1;
1880 nla_nest_end(msg, nested);
1883 state->split_start++;
1886 if (rdev->wiphy.num_iftype_ext_capab &&
1887 rdev->wiphy.iftype_ext_capab) {
1888 struct nlattr *nested_ext_capab, *nested;
1890 nested = nla_nest_start(msg,
1891 NL80211_ATTR_IFTYPE_EXT_CAPA);
1893 goto nla_put_failure;
1895 for (i = state->capa_start;
1896 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1897 const struct wiphy_iftype_ext_capab *capab;
1899 capab = &rdev->wiphy.iftype_ext_capab[i];
1901 nested_ext_capab = nla_nest_start(msg, i);
1902 if (!nested_ext_capab ||
1903 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1905 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1906 capab->extended_capabilities_len,
1907 capab->extended_capabilities) ||
1908 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1909 capab->extended_capabilities_len,
1910 capab->extended_capabilities_mask))
1911 goto nla_put_failure;
1913 nla_nest_end(msg, nested_ext_capab);
1917 nla_nest_end(msg, nested);
1918 if (i < rdev->wiphy.num_iftype_ext_capab) {
1919 state->capa_start = i + 1;
1924 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
1925 rdev->wiphy.nan_supported_bands))
1926 goto nla_put_failure;
1929 state->split_start = 0;
1933 genlmsg_end(msg, hdr);
1937 genlmsg_cancel(msg, hdr);
1941 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1942 struct netlink_callback *cb,
1943 struct nl80211_dump_wiphy_state *state)
1945 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
1946 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
1947 nl80211_fam.maxattr, nl80211_policy, NULL);
1948 /* ignore parse errors for backward compatibility */
1952 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1953 if (tb[NL80211_ATTR_WIPHY])
1954 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1955 if (tb[NL80211_ATTR_WDEV])
1956 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1957 if (tb[NL80211_ATTR_IFINDEX]) {
1958 struct net_device *netdev;
1959 struct cfg80211_registered_device *rdev;
1960 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1962 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1965 if (netdev->ieee80211_ptr) {
1966 rdev = wiphy_to_rdev(
1967 netdev->ieee80211_ptr->wiphy);
1968 state->filter_wiphy = rdev->wiphy_idx;
1975 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1978 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1979 struct cfg80211_registered_device *rdev;
1983 state = kzalloc(sizeof(*state), GFP_KERNEL);
1988 state->filter_wiphy = -1;
1989 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1995 cb->args[0] = (long)state;
1998 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1999 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2001 if (++idx <= state->start)
2003 if (state->filter_wiphy != -1 &&
2004 state->filter_wiphy != rdev->wiphy_idx)
2006 /* attempt to fit multiple wiphy data chunks into the skb */
2008 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
2010 NETLINK_CB(cb->skb).portid,
2012 NLM_F_MULTI, state);
2015 * If sending the wiphy data didn't fit (ENOBUFS
2016 * or EMSGSIZE returned), this SKB is still
2017 * empty (so it's not too big because another
2018 * wiphy dataset is already in the skb) and
2019 * we've not tried to adjust the dump allocation
2020 * yet ... then adjust the alloc size to be
2021 * bigger, and return 1 but with the empty skb.
2022 * This results in an empty message being RX'ed
2023 * in userspace, but that is ignored.
2025 * We can then retry with the larger buffer.
2027 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
2028 !skb->len && !state->split &&
2029 cb->min_dump_alloc < 4096) {
2030 cb->min_dump_alloc = 4096;
2031 state->split_start = 0;
2038 } while (state->split_start > 0);
2048 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2050 kfree((void *)cb->args[0]);
2054 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2056 struct sk_buff *msg;
2057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2058 struct nl80211_dump_wiphy_state state = {};
2060 msg = nlmsg_new(4096, GFP_KERNEL);
2064 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2065 info->snd_portid, info->snd_seq, 0,
2071 return genlmsg_reply(msg, info);
2074 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2075 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2076 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2077 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2078 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2079 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2082 static int parse_txq_params(struct nlattr *tb[],
2083 struct ieee80211_txq_params *txq_params)
2087 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
2088 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2089 !tb[NL80211_TXQ_ATTR_AIFS])
2092 ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
2093 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2094 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2095 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2096 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2098 if (ac >= NL80211_NUM_ACS)
2100 txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS);
2104 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2107 * You can only set the channel explicitly for WDS interfaces,
2108 * all others have their channel managed via their respective
2109 * "establish a connection" command (connect, join, ...)
2111 * For AP/GO and mesh mode, the channel can be set with the
2112 * channel userspace API, but is only stored and passed to the
2113 * low-level driver when the AP starts or the mesh is joined.
2114 * This is for backward compatibility, userspace can also give
2115 * the channel in the start-ap or join-mesh commands instead.
2117 * Monitors are special as they are normally slaved to
2118 * whatever else is going on, so they have their own special
2119 * operation to set the monitor channel if possible.
2122 wdev->iftype == NL80211_IFTYPE_AP ||
2123 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
2124 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2125 wdev->iftype == NL80211_IFTYPE_P2P_GO;
2128 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2129 struct genl_info *info,
2130 struct cfg80211_chan_def *chandef)
2134 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2137 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2139 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
2140 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2141 chandef->center_freq1 = control_freq;
2142 chandef->center_freq2 = 0;
2144 /* Primary channel not allowed */
2145 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2148 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2149 enum nl80211_channel_type chantype;
2151 chantype = nla_get_u32(
2152 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2155 case NL80211_CHAN_NO_HT:
2156 case NL80211_CHAN_HT20:
2157 case NL80211_CHAN_HT40PLUS:
2158 case NL80211_CHAN_HT40MINUS:
2159 cfg80211_chandef_create(chandef, chandef->chan,
2161 /* user input for center_freq is incorrect */
2162 if (info->attrs[NL80211_ATTR_CENTER_FREQ1] &&
2163 chandef->center_freq1 != nla_get_u32(
2164 info->attrs[NL80211_ATTR_CENTER_FREQ1]))
2166 /* center_freq2 must be zero */
2167 if (info->attrs[NL80211_ATTR_CENTER_FREQ2] &&
2168 nla_get_u32(info->attrs[NL80211_ATTR_CENTER_FREQ2]))
2174 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2176 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2177 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2178 chandef->center_freq1 =
2180 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2181 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2182 chandef->center_freq2 =
2184 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2187 if (!cfg80211_chandef_valid(chandef))
2190 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2191 IEEE80211_CHAN_DISABLED))
2194 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2195 chandef->width == NL80211_CHAN_WIDTH_10) &&
2196 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2202 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2203 struct net_device *dev,
2204 struct genl_info *info)
2206 struct cfg80211_chan_def chandef;
2208 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2209 struct wireless_dev *wdev = NULL;
2212 wdev = dev->ieee80211_ptr;
2213 if (!nl80211_can_set_dev_channel(wdev))
2216 iftype = wdev->iftype;
2218 result = nl80211_parse_chandef(rdev, info, &chandef);
2223 case NL80211_IFTYPE_AP:
2224 case NL80211_IFTYPE_P2P_GO:
2225 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2230 if (wdev->beacon_interval) {
2231 if (!dev || !rdev->ops->set_ap_chanwidth ||
2232 !(rdev->wiphy.features &
2233 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2238 /* Only allow dynamic channel width changes */
2239 if (chandef.chan != wdev->preset_chandef.chan) {
2243 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2247 wdev->preset_chandef = chandef;
2250 case NL80211_IFTYPE_MESH_POINT:
2251 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2253 case NL80211_IFTYPE_MONITOR:
2254 result = cfg80211_set_monitor_channel(rdev, &chandef);
2263 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2266 struct net_device *netdev = info->user_ptr[1];
2268 return __nl80211_set_channel(rdev, netdev, info);
2271 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2274 struct net_device *dev = info->user_ptr[1];
2275 struct wireless_dev *wdev = dev->ieee80211_ptr;
2278 if (!info->attrs[NL80211_ATTR_MAC])
2281 if (netif_running(dev))
2284 if (!rdev->ops->set_wds_peer)
2287 if (wdev->iftype != NL80211_IFTYPE_WDS)
2290 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2291 return rdev_set_wds_peer(rdev, dev, bssid);
2294 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2296 struct cfg80211_registered_device *rdev;
2297 struct net_device *netdev = NULL;
2298 struct wireless_dev *wdev;
2299 int result = 0, rem_txq_params = 0;
2300 struct nlattr *nl_txq_params;
2302 u8 retry_short = 0, retry_long = 0;
2303 u32 frag_threshold = 0, rts_threshold = 0;
2304 u8 coverage_class = 0;
2309 * Try to find the wiphy and netdev. Normally this
2310 * function shouldn't need the netdev, but this is
2311 * done for backward compatibility -- previously
2312 * setting the channel was done per wiphy, but now
2313 * it is per netdev. Previous userland like hostapd
2314 * also passed a netdev to set_wiphy, so that it is
2315 * possible to let that go to the right netdev!
2318 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2319 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2321 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2322 if (netdev && netdev->ieee80211_ptr)
2323 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2329 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2332 return PTR_ERR(rdev);
2337 wdev = netdev->ieee80211_ptr;
2340 * end workaround code, by now the rdev is available
2341 * and locked, and wdev may or may not be NULL.
2344 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2345 result = cfg80211_dev_rename(
2346 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2351 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2352 struct ieee80211_txq_params txq_params;
2353 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2355 if (!rdev->ops->set_txq_params)
2361 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2362 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2365 if (!netif_running(netdev))
2368 nla_for_each_nested(nl_txq_params,
2369 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2371 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2377 result = parse_txq_params(tb, &txq_params);
2381 result = rdev_set_txq_params(rdev, netdev,
2388 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2389 result = __nl80211_set_channel(
2391 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2397 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2398 struct wireless_dev *txp_wdev = wdev;
2399 enum nl80211_tx_power_setting type;
2402 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2405 if (!rdev->ops->set_tx_power)
2408 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2409 type = nla_get_u32(info->attrs[idx]);
2411 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2412 (type != NL80211_TX_POWER_AUTOMATIC))
2415 if (type != NL80211_TX_POWER_AUTOMATIC) {
2416 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2417 mbm = nla_get_u32(info->attrs[idx]);
2420 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2425 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2426 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2429 if ((!rdev->wiphy.available_antennas_tx &&
2430 !rdev->wiphy.available_antennas_rx) ||
2431 !rdev->ops->set_antenna)
2434 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2435 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2437 /* reject antenna configurations which don't match the
2438 * available antenna masks, except for the "all" mask */
2439 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2440 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2443 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2444 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2446 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2453 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2454 retry_short = nla_get_u8(
2455 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2456 if (retry_short == 0)
2459 changed |= WIPHY_PARAM_RETRY_SHORT;
2462 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2463 retry_long = nla_get_u8(
2464 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2465 if (retry_long == 0)
2468 changed |= WIPHY_PARAM_RETRY_LONG;
2471 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2472 frag_threshold = nla_get_u32(
2473 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2474 if (frag_threshold < 256)
2477 if (frag_threshold != (u32) -1) {
2479 * Fragments (apart from the last one) are required to
2480 * have even length. Make the fragmentation code
2481 * simpler by stripping LSB should someone try to use
2482 * odd threshold value.
2484 frag_threshold &= ~0x1;
2486 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2489 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2490 rts_threshold = nla_get_u32(
2491 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2492 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2495 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2496 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2499 coverage_class = nla_get_u8(
2500 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2501 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2504 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2505 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2508 changed |= WIPHY_PARAM_DYN_ACK;
2512 u8 old_retry_short, old_retry_long;
2513 u32 old_frag_threshold, old_rts_threshold;
2514 u8 old_coverage_class;
2516 if (!rdev->ops->set_wiphy_params)
2519 old_retry_short = rdev->wiphy.retry_short;
2520 old_retry_long = rdev->wiphy.retry_long;
2521 old_frag_threshold = rdev->wiphy.frag_threshold;
2522 old_rts_threshold = rdev->wiphy.rts_threshold;
2523 old_coverage_class = rdev->wiphy.coverage_class;
2525 if (changed & WIPHY_PARAM_RETRY_SHORT)
2526 rdev->wiphy.retry_short = retry_short;
2527 if (changed & WIPHY_PARAM_RETRY_LONG)
2528 rdev->wiphy.retry_long = retry_long;
2529 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2530 rdev->wiphy.frag_threshold = frag_threshold;
2531 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2532 rdev->wiphy.rts_threshold = rts_threshold;
2533 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2534 rdev->wiphy.coverage_class = coverage_class;
2536 result = rdev_set_wiphy_params(rdev, changed);
2538 rdev->wiphy.retry_short = old_retry_short;
2539 rdev->wiphy.retry_long = old_retry_long;
2540 rdev->wiphy.frag_threshold = old_frag_threshold;
2541 rdev->wiphy.rts_threshold = old_rts_threshold;
2542 rdev->wiphy.coverage_class = old_coverage_class;
2549 static inline u64 wdev_id(struct wireless_dev *wdev)
2551 return (u64)wdev->identifier |
2552 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2555 static int nl80211_send_chandef(struct sk_buff *msg,
2556 const struct cfg80211_chan_def *chandef)
2558 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2561 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2562 chandef->chan->center_freq))
2564 switch (chandef->width) {
2565 case NL80211_CHAN_WIDTH_20_NOHT:
2566 case NL80211_CHAN_WIDTH_20:
2567 case NL80211_CHAN_WIDTH_40:
2568 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2569 cfg80211_get_chandef_type(chandef)))
2575 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2577 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2579 if (chandef->center_freq2 &&
2580 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2585 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2586 struct cfg80211_registered_device *rdev,
2587 struct wireless_dev *wdev, bool removal)
2589 struct net_device *dev = wdev->netdev;
2590 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2594 cmd = NL80211_CMD_DEL_INTERFACE;
2596 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2601 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2602 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2603 goto nla_put_failure;
2605 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2606 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2607 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2608 NL80211_ATTR_PAD) ||
2609 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2610 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2611 rdev->devlist_generation ^
2612 (cfg80211_rdev_list_generation << 2)))
2613 goto nla_put_failure;
2615 if (rdev->ops->get_channel) {
2617 struct cfg80211_chan_def chandef;
2619 ret = rdev_get_channel(rdev, wdev, &chandef);
2621 if (nl80211_send_chandef(msg, &chandef))
2622 goto nla_put_failure;
2626 if (rdev->ops->get_tx_power) {
2629 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2631 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2633 goto nla_put_failure;
2637 switch (wdev->iftype) {
2638 case NL80211_IFTYPE_AP:
2639 if (wdev->ssid_len &&
2640 nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2641 goto nla_put_failure_locked;
2643 case NL80211_IFTYPE_STATION:
2644 case NL80211_IFTYPE_P2P_CLIENT:
2645 case NL80211_IFTYPE_ADHOC: {
2647 if (!wdev->current_bss)
2650 ssid_ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
2653 nla_put(msg, NL80211_ATTR_SSID, ssid_ie[1], ssid_ie + 2))
2654 goto nla_put_failure_rcu_locked;
2664 genlmsg_end(msg, hdr);
2667 nla_put_failure_rcu_locked:
2669 nla_put_failure_locked:
2672 genlmsg_cancel(msg, hdr);
2676 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2680 int wp_start = cb->args[0];
2681 int if_start = cb->args[1];
2682 int filter_wiphy = -1;
2683 struct cfg80211_registered_device *rdev;
2684 struct wireless_dev *wdev;
2689 struct nl80211_dump_wiphy_state state = {
2693 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2697 filter_wiphy = state.filter_wiphy;
2700 * if filtering, set cb->args[2] to +1 since 0 is the default
2701 * value needed to determine that parsing is necessary.
2703 if (filter_wiphy >= 0)
2704 cb->args[2] = filter_wiphy + 1;
2707 } else if (cb->args[2] > 0) {
2708 filter_wiphy = cb->args[2] - 1;
2711 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2712 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2714 if (wp_idx < wp_start) {
2719 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2724 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
2725 if (if_idx < if_start) {
2729 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2730 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2731 rdev, wdev, false) < 0) {
2740 cb->args[0] = wp_idx;
2741 cb->args[1] = if_idx;
2750 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2752 struct sk_buff *msg;
2753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2754 struct wireless_dev *wdev = info->user_ptr[1];
2756 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2760 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2761 rdev, wdev, false) < 0) {
2766 return genlmsg_reply(msg, info);
2769 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2770 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2771 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2772 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2773 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2774 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2775 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2778 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2780 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2788 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
2789 mntr_flags_policy, NULL))
2792 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2794 *mntrflags |= (1<<flag);
2796 *mntrflags |= MONITOR_FLAG_CHANGED;
2801 static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
2802 enum nl80211_iftype type,
2803 struct genl_info *info,
2804 struct vif_params *params)
2806 bool change = false;
2809 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2810 if (type != NL80211_IFTYPE_MONITOR)
2813 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2821 if (params->flags & MONITOR_FLAG_ACTIVE &&
2822 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2825 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2826 const u8 *mumimo_groups;
2827 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2829 if (type != NL80211_IFTYPE_MONITOR)
2832 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2836 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2838 /* bits 0 and 63 are reserved and must be zero */
2839 if ((mumimo_groups[0] & BIT(0)) ||
2840 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
2843 params->vht_mumimo_groups = mumimo_groups;
2847 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2848 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2850 if (type != NL80211_IFTYPE_MONITOR)
2853 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2856 params->vht_mumimo_follow_addr =
2857 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
2861 return change ? 1 : 0;
2864 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2865 struct net_device *netdev, u8 use_4addr,
2866 enum nl80211_iftype iftype)
2869 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2875 case NL80211_IFTYPE_AP_VLAN:
2876 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2879 case NL80211_IFTYPE_STATION:
2880 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2890 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2893 struct vif_params params;
2895 enum nl80211_iftype otype, ntype;
2896 struct net_device *dev = info->user_ptr[1];
2897 bool change = false;
2899 memset(¶ms, 0, sizeof(params));
2901 otype = ntype = dev->ieee80211_ptr->iftype;
2903 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2904 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2907 if (ntype > NL80211_IFTYPE_MAX)
2911 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2912 struct wireless_dev *wdev = dev->ieee80211_ptr;
2914 if (ntype != NL80211_IFTYPE_MESH_POINT)
2916 if (netif_running(dev))
2920 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2921 IEEE80211_MAX_MESH_ID_LEN);
2922 wdev->mesh_id_up_len =
2923 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2924 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2925 wdev->mesh_id_up_len);
2929 if (info->attrs[NL80211_ATTR_4ADDR]) {
2930 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2932 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2936 params.use_4addr = -1;
2939 err = nl80211_parse_mon_options(rdev, ntype, info, ¶ms);
2946 err = cfg80211_change_iface(rdev, dev, ntype, ¶ms);
2950 if (!err && params.use_4addr != -1)
2951 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2956 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2959 struct vif_params params;
2960 struct wireless_dev *wdev;
2961 struct sk_buff *msg;
2963 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2965 /* to avoid failing a new interface creation due to pending removal */
2966 cfg80211_destroy_ifaces(rdev);
2968 memset(¶ms, 0, sizeof(params));
2970 if (!info->attrs[NL80211_ATTR_IFNAME])
2973 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2974 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2975 if (type > NL80211_IFTYPE_MAX)
2979 if (!rdev->ops->add_virtual_intf ||
2980 !(rdev->wiphy.interface_modes & (1 << type)))
2983 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
2984 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2985 info->attrs[NL80211_ATTR_MAC]) {
2986 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2988 if (!is_valid_ether_addr(params.macaddr))
2989 return -EADDRNOTAVAIL;
2992 if (info->attrs[NL80211_ATTR_4ADDR]) {
2993 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2994 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2999 err = nl80211_parse_mon_options(rdev, type, info, ¶ms);
3003 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3007 wdev = rdev_add_virtual_intf(rdev,
3008 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
3009 NET_NAME_USER, type, ¶ms);
3010 if (WARN_ON(!wdev)) {
3013 } else if (IS_ERR(wdev)) {
3015 return PTR_ERR(wdev);
3018 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
3019 wdev->owner_nlportid = info->snd_portid;
3022 case NL80211_IFTYPE_MESH_POINT:
3023 if (!info->attrs[NL80211_ATTR_MESH_ID])
3026 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
3027 IEEE80211_MAX_MESH_ID_LEN);
3028 wdev->mesh_id_up_len =
3029 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
3030 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
3031 wdev->mesh_id_up_len);
3034 case NL80211_IFTYPE_NAN:
3035 case NL80211_IFTYPE_P2P_DEVICE:
3037 * P2P Device and NAN do not have a netdev, so don't go
3038 * through the netdev notifier and must be added here
3040 mutex_init(&wdev->mtx);
3041 INIT_LIST_HEAD(&wdev->event_list);
3042 spin_lock_init(&wdev->event_lock);
3043 INIT_LIST_HEAD(&wdev->mgmt_registrations);
3044 spin_lock_init(&wdev->mgmt_registrations_lock);
3046 wdev->identifier = ++rdev->wdev_id;
3047 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
3048 rdev->devlist_generation++;
3054 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
3055 rdev, wdev, false) < 0) {
3061 * For wdevs which have no associated netdev object (e.g. of type
3062 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
3063 * For all other types, the event will be generated from the
3067 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
3069 return genlmsg_reply(msg, info);
3072 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
3074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3075 struct wireless_dev *wdev = info->user_ptr[1];
3077 if (!rdev->ops->del_virtual_intf)
3081 * If we remove a wireless device without a netdev then clear
3082 * user_ptr[1] so that nl80211_post_doit won't dereference it
3083 * to check if it needs to do dev_put(). Otherwise it crashes
3084 * since the wdev has been freed, unlike with a netdev where
3085 * we need the dev_put() for the netdev to really be freed.
3088 info->user_ptr[1] = NULL;
3090 return rdev_del_virtual_intf(rdev, wdev);
3093 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3096 struct net_device *dev = info->user_ptr[1];
3099 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3102 if (!rdev->ops->set_noack_map)
3105 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3107 return rdev_set_noack_map(rdev, dev, noack_map);
3110 struct get_key_cookie {
3111 struct sk_buff *msg;
3116 static void get_key_callback(void *c, struct key_params *params)
3119 struct get_key_cookie *cookie = c;
3122 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3123 params->key_len, params->key)) ||
3125 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3126 params->seq_len, params->seq)) ||
3128 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3130 goto nla_put_failure;
3132 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3134 goto nla_put_failure;
3137 nla_put(cookie->msg, NL80211_KEY_DATA,
3138 params->key_len, params->key)) ||
3140 nla_put(cookie->msg, NL80211_KEY_SEQ,
3141 params->seq_len, params->seq)) ||
3143 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3145 goto nla_put_failure;
3147 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3148 goto nla_put_failure;
3150 nla_nest_end(cookie->msg, key);
3157 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3161 struct net_device *dev = info->user_ptr[1];
3163 const u8 *mac_addr = NULL;
3165 struct get_key_cookie cookie = {
3169 struct sk_buff *msg;
3171 if (info->attrs[NL80211_ATTR_KEY_IDX])
3172 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3177 if (info->attrs[NL80211_ATTR_MAC])
3178 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3180 pairwise = !!mac_addr;
3181 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3182 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
3184 if (kt >= NUM_NL80211_KEYTYPES)
3186 if (kt != NL80211_KEYTYPE_GROUP &&
3187 kt != NL80211_KEYTYPE_PAIRWISE)
3189 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3192 if (!rdev->ops->get_key)
3195 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3198 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3202 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3203 NL80211_CMD_NEW_KEY);
3205 goto nla_put_failure;
3208 cookie.idx = key_idx;
3210 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3211 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3212 goto nla_put_failure;
3214 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3215 goto nla_put_failure;
3217 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3224 goto nla_put_failure;
3226 genlmsg_end(msg, hdr);
3227 return genlmsg_reply(msg, info);
3236 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3238 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3239 struct key_parse key;
3241 struct net_device *dev = info->user_ptr[1];
3243 err = nl80211_parse_key(info, &key);
3250 /* only support setting default key */
3251 if (!key.def && !key.defmgmt)
3254 wdev_lock(dev->ieee80211_ptr);
3257 if (!rdev->ops->set_default_key) {
3262 err = nl80211_key_allowed(dev->ieee80211_ptr);
3266 err = rdev_set_default_key(rdev, dev, key.idx,
3267 key.def_uni, key.def_multi);
3272 #ifdef CONFIG_CFG80211_WEXT
3273 dev->ieee80211_ptr->wext.default_key = key.idx;
3276 if (key.def_uni || !key.def_multi) {
3281 if (!rdev->ops->set_default_mgmt_key) {
3286 err = nl80211_key_allowed(dev->ieee80211_ptr);
3290 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3294 #ifdef CONFIG_CFG80211_WEXT
3295 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3300 wdev_unlock(dev->ieee80211_ptr);
3305 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3309 struct net_device *dev = info->user_ptr[1];
3310 struct key_parse key;
3311 const u8 *mac_addr = NULL;
3313 err = nl80211_parse_key(info, &key);
3320 if (info->attrs[NL80211_ATTR_MAC])
3321 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3323 if (key.type == -1) {
3325 key.type = NL80211_KEYTYPE_PAIRWISE;
3327 key.type = NL80211_KEYTYPE_GROUP;
3331 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3332 key.type != NL80211_KEYTYPE_GROUP)
3335 if (!rdev->ops->add_key)
3338 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3339 key.type == NL80211_KEYTYPE_PAIRWISE,
3343 wdev_lock(dev->ieee80211_ptr);
3344 err = nl80211_key_allowed(dev->ieee80211_ptr);
3346 err = rdev_add_key(rdev, dev, key.idx,
3347 key.type == NL80211_KEYTYPE_PAIRWISE,
3349 wdev_unlock(dev->ieee80211_ptr);
3354 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3358 struct net_device *dev = info->user_ptr[1];
3359 u8 *mac_addr = NULL;
3360 struct key_parse key;
3362 err = nl80211_parse_key(info, &key);
3366 if (info->attrs[NL80211_ATTR_MAC])
3367 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3369 if (key.type == -1) {
3371 key.type = NL80211_KEYTYPE_PAIRWISE;
3373 key.type = NL80211_KEYTYPE_GROUP;
3377 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3378 key.type != NL80211_KEYTYPE_GROUP)
3381 if (!rdev->ops->del_key)
3384 wdev_lock(dev->ieee80211_ptr);
3385 err = nl80211_key_allowed(dev->ieee80211_ptr);
3387 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3388 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3392 err = rdev_del_key(rdev, dev, key.idx,
3393 key.type == NL80211_KEYTYPE_PAIRWISE,
3396 #ifdef CONFIG_CFG80211_WEXT
3398 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3399 dev->ieee80211_ptr->wext.default_key = -1;
3400 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3401 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3404 wdev_unlock(dev->ieee80211_ptr);
3409 /* This function returns an error or the number of nested attributes */
3410 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3412 struct nlattr *attr;
3413 int n_entries = 0, tmp;
3415 nla_for_each_nested(attr, nl_attr, tmp) {
3416 if (nla_len(attr) != ETH_ALEN)
3426 * This function parses ACL information and allocates memory for ACL data.
3427 * On successful return, the calling function is responsible to free the
3428 * ACL buffer returned by this function.
3430 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3431 struct genl_info *info)
3433 enum nl80211_acl_policy acl_policy;
3434 struct nlattr *attr;
3435 struct cfg80211_acl_data *acl;
3436 int i = 0, n_entries, tmp;
3438 if (!wiphy->max_acl_mac_addrs)
3439 return ERR_PTR(-EOPNOTSUPP);
3441 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3442 return ERR_PTR(-EINVAL);
3444 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3445 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3446 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3447 return ERR_PTR(-EINVAL);
3449 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3450 return ERR_PTR(-EINVAL);
3452 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3454 return ERR_PTR(n_entries);
3456 if (n_entries > wiphy->max_acl_mac_addrs)
3457 return ERR_PTR(-ENOTSUPP);
3459 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3462 return ERR_PTR(-ENOMEM);
3464 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3465 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3469 acl->n_acl_entries = n_entries;
3470 acl->acl_policy = acl_policy;
3475 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3477 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3478 struct net_device *dev = info->user_ptr[1];
3479 struct cfg80211_acl_data *acl;
3482 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3483 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3486 if (!dev->ieee80211_ptr->beacon_interval)
3489 acl = parse_acl_data(&rdev->wiphy, info);
3491 return PTR_ERR(acl);
3493 err = rdev_set_mac_acl(rdev, dev, acl);
3500 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3501 u8 *rates, u8 rates_len)
3506 for (i = 0; i < rates_len; i++) {
3507 int rate = (rates[i] & 0x7f) * 5;
3510 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3511 struct ieee80211_rate *srate =
3512 &sband->bitrates[ridx];
3513 if (rate == srate->bitrate) {
3518 if (ridx == sband->n_bitrates)
3519 return 0; /* rate not found */
3525 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3526 u8 *rates, u8 rates_len,
3527 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3531 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3533 for (i = 0; i < rates_len; i++) {
3536 ridx = rates[i] / 8;
3537 rbit = BIT(rates[i] % 8);
3539 /* check validity */
3540 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3543 /* check availability */
3544 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3553 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3557 switch (vht_mcs_map) {
3558 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3560 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3563 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3566 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3576 static void vht_build_mcs_mask(u16 vht_mcs_map,
3577 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3581 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3582 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3587 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3588 struct nl80211_txrate_vht *txrate,
3589 u16 mcs[NL80211_VHT_NSS_MAX])
3591 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3592 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3595 if (!sband->vht_cap.vht_supported)
3598 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3600 /* Build vht_mcs_mask from VHT capabilities */
3601 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3603 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3604 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3605 mcs[i] = txrate->mcs[i];
3613 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3614 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3615 .len = NL80211_MAX_SUPP_RATES },
3616 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3617 .len = NL80211_MAX_SUPP_HT_RATES },
3618 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3619 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3622 static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3623 struct cfg80211_bitrate_mask *mask)
3625 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3628 struct nlattr *tx_rates;
3629 struct ieee80211_supported_band *sband;
3632 memset(mask, 0, sizeof(*mask));
3633 /* Default to all rates enabled */
3634 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3635 sband = rdev->wiphy.bands[i];
3640 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3641 memcpy(mask->control[i].ht_mcs,
3642 sband->ht_cap.mcs.rx_mask,
3643 sizeof(mask->control[i].ht_mcs));
3645 if (!sband->vht_cap.vht_supported)
3648 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3649 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3652 /* if no rates are given set it back to the defaults */
3653 if (!info->attrs[NL80211_ATTR_TX_RATES])
3656 /* The nested attribute uses enum nl80211_band as the index. This maps
3657 * directly to the enum nl80211_band values used in cfg80211.
3659 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3660 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3661 enum nl80211_band band = nla_type(tx_rates);
3664 if (band < 0 || band >= NUM_NL80211_BANDS)
3666 sband = rdev->wiphy.bands[band];
3669 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
3670 nl80211_txattr_policy, info->extack);
3673 if (tb[NL80211_TXRATE_LEGACY]) {
3674 mask->control[band].legacy = rateset_to_mask(
3676 nla_data(tb[NL80211_TXRATE_LEGACY]),
3677 nla_len(tb[NL80211_TXRATE_LEGACY]));
3678 if ((mask->control[band].legacy == 0) &&
3679 nla_len(tb[NL80211_TXRATE_LEGACY]))
3682 if (tb[NL80211_TXRATE_HT]) {
3683 if (!ht_rateset_to_mask(
3685 nla_data(tb[NL80211_TXRATE_HT]),
3686 nla_len(tb[NL80211_TXRATE_HT]),
3687 mask->control[band].ht_mcs))
3690 if (tb[NL80211_TXRATE_VHT]) {
3691 if (!vht_set_mcs_mask(
3693 nla_data(tb[NL80211_TXRATE_VHT]),
3694 mask->control[band].vht_mcs))
3697 if (tb[NL80211_TXRATE_GI]) {
3698 mask->control[band].gi =
3699 nla_get_u8(tb[NL80211_TXRATE_GI]);
3700 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3704 if (mask->control[band].legacy == 0) {
3705 /* don't allow empty legacy rates if HT or VHT
3706 * are not even supported.
3708 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3709 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3712 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3713 if (mask->control[band].ht_mcs[i])
3716 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3717 if (mask->control[band].vht_mcs[i])
3720 /* legacy and mcs rates may not be both empty */
3729 static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3730 enum nl80211_band band,
3731 struct cfg80211_bitrate_mask *beacon_rate)
3733 u32 count_ht, count_vht, i;
3734 u32 rate = beacon_rate->control[band].legacy;
3736 /* Allow only one rate */
3737 if (hweight32(rate) > 1)
3741 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3742 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
3744 } else if (beacon_rate->control[band].ht_mcs[i]) {
3749 if (count_ht && rate)
3754 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3755 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
3757 } else if (beacon_rate->control[band].vht_mcs[i]) {
3762 if (count_vht && rate)
3766 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3770 !wiphy_ext_feature_isset(&rdev->wiphy,
3771 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3774 !wiphy_ext_feature_isset(&rdev->wiphy,
3775 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3778 !wiphy_ext_feature_isset(&rdev->wiphy,
3779 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3785 static int nl80211_parse_beacon(struct nlattr *attrs[],
3786 struct cfg80211_beacon_data *bcn)
3788 bool haveinfo = false;
3790 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3791 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3792 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3793 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3796 memset(bcn, 0, sizeof(*bcn));
3798 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3799 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3800 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3806 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3807 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3808 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3815 if (attrs[NL80211_ATTR_IE]) {
3816 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3817 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3820 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3821 bcn->proberesp_ies =
3822 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3823 bcn->proberesp_ies_len =
3824 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3827 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3828 bcn->assocresp_ies =
3829 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3830 bcn->assocresp_ies_len =
3831 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3834 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3835 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3836 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3842 static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3850 for (i = 0; i < rates[1]; i++) {
3851 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3852 params->ht_required = true;
3853 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3854 params->vht_required = true;
3859 * Since the nl80211 API didn't include, from the beginning, attributes about
3860 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3861 * benefit of drivers that rebuild IEs in the firmware.
3863 static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3865 const struct cfg80211_beacon_data *bcn = ¶ms->beacon;
3866 size_t ies_len = bcn->tail_len;
3867 const u8 *ies = bcn->tail;
3871 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3872 nl80211_check_ap_rate_selectors(params, rates);
3874 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3875 nl80211_check_ap_rate_selectors(params, rates);
3877 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3878 if (cap && cap[1] >= sizeof(*params->ht_cap))
3879 params->ht_cap = (void *)(cap + 2);
3880 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3881 if (cap && cap[1] >= sizeof(*params->vht_cap))
3882 params->vht_cap = (void *)(cap + 2);
3885 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3886 struct cfg80211_ap_settings *params)
3888 struct wireless_dev *wdev;
3891 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
3892 if (wdev->iftype != NL80211_IFTYPE_AP &&
3893 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3896 if (!wdev->preset_chandef.chan)
3899 params->chandef = wdev->preset_chandef;
3907 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3908 enum nl80211_auth_type auth_type,
3909 enum nl80211_commands cmd)
3911 if (auth_type > NL80211_AUTHTYPE_MAX)
3915 case NL80211_CMD_AUTHENTICATE:
3916 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3917 auth_type == NL80211_AUTHTYPE_SAE)
3919 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3920 NL80211_EXT_FEATURE_FILS_STA) &&
3921 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3922 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3923 auth_type == NL80211_AUTHTYPE_FILS_PK))
3926 case NL80211_CMD_CONNECT:
3927 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3928 auth_type == NL80211_AUTHTYPE_SAE)
3931 /* FILS with SK PFS or PK not supported yet */
3932 if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3933 auth_type == NL80211_AUTHTYPE_FILS_PK)
3935 if (!wiphy_ext_feature_isset(
3937 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
3938 auth_type == NL80211_AUTHTYPE_FILS_SK)
3941 case NL80211_CMD_START_AP:
3942 /* SAE not supported yet */
3943 if (auth_type == NL80211_AUTHTYPE_SAE)
3945 /* FILS not supported yet */
3946 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3947 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3948 auth_type == NL80211_AUTHTYPE_FILS_PK)
3956 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3959 struct net_device *dev = info->user_ptr[1];
3960 struct wireless_dev *wdev = dev->ieee80211_ptr;
3961 struct cfg80211_ap_settings params;
3964 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3965 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3968 if (!rdev->ops->start_ap)
3971 if (wdev->beacon_interval)
3974 memset(¶ms, 0, sizeof(params));
3976 /* these are required for START_AP */
3977 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3978 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3979 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3982 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3986 params.beacon_interval =
3987 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3988 params.dtim_period =
3989 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3991 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3992 params.beacon_interval);
3997 * In theory, some of these attributes should be required here
3998 * but since they were not used when the command was originally
3999 * added, keep them optional for old user space programs to let
4000 * them continue to work with drivers that do not need the
4001 * additional information -- drivers must check!
4003 if (info->attrs[NL80211_ATTR_SSID]) {
4004 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4006 nla_len(info->attrs[NL80211_ATTR_SSID]);
4007 if (params.ssid_len == 0 ||
4008 params.ssid_len > IEEE80211_MAX_SSID_LEN)
4012 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
4013 params.hidden_ssid = nla_get_u32(
4014 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
4015 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
4016 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
4017 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
4021 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4023 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4024 params.auth_type = nla_get_u32(
4025 info->attrs[NL80211_ATTR_AUTH_TYPE]);
4026 if (!nl80211_valid_auth_type(rdev, params.auth_type,
4027 NL80211_CMD_START_AP))
4030 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4032 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
4033 NL80211_MAX_NR_CIPHER_SUITES);
4037 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
4038 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
4040 params.inactivity_timeout = nla_get_u16(
4041 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
4044 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4045 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4047 params.p2p_ctwindow =
4048 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4049 if (params.p2p_ctwindow > 127)
4051 if (params.p2p_ctwindow != 0 &&
4052 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4056 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4059 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4061 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4064 params.p2p_opp_ps = tmp;
4065 if (params.p2p_opp_ps != 0 &&
4066 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4070 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4071 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
4074 } else if (wdev->preset_chandef.chan) {
4075 params.chandef = wdev->preset_chandef;
4076 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
4079 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
4083 if (info->attrs[NL80211_ATTR_TX_RATES]) {
4084 err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate);
4088 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
4089 ¶ms.beacon_rate);
4094 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
4096 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
4097 switch (params.smps_mode) {
4098 case NL80211_SMPS_OFF:
4100 case NL80211_SMPS_STATIC:
4101 if (!(rdev->wiphy.features &
4102 NL80211_FEATURE_STATIC_SMPS))
4105 case NL80211_SMPS_DYNAMIC:
4106 if (!(rdev->wiphy.features &
4107 NL80211_FEATURE_DYNAMIC_SMPS))
4114 params.smps_mode = NL80211_SMPS_OFF;
4117 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4118 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4121 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4122 params.acl = parse_acl_data(&rdev->wiphy, info);
4123 if (IS_ERR(params.acl))
4124 return PTR_ERR(params.acl);
4127 nl80211_calculate_ap_params(¶ms);
4130 err = rdev_start_ap(rdev, dev, ¶ms);
4132 wdev->preset_chandef = params.chandef;
4133 wdev->beacon_interval = params.beacon_interval;
4134 wdev->chandef = params.chandef;
4135 wdev->ssid_len = params.ssid_len;
4136 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
4145 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4148 struct net_device *dev = info->user_ptr[1];
4149 struct wireless_dev *wdev = dev->ieee80211_ptr;
4150 struct cfg80211_beacon_data params;
4153 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4154 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4157 if (!rdev->ops->change_beacon)
4160 if (!wdev->beacon_interval)
4163 err = nl80211_parse_beacon(info->attrs, ¶ms);
4168 err = rdev_change_beacon(rdev, dev, ¶ms);
4174 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
4176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4177 struct net_device *dev = info->user_ptr[1];
4179 return cfg80211_stop_ap(rdev, dev, false);
4182 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4183 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4184 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4185 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
4186 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
4187 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
4188 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
4191 static int parse_station_flags(struct genl_info *info,
4192 enum nl80211_iftype iftype,
4193 struct station_parameters *params)
4195 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
4200 * Try parsing the new attribute first so userspace
4201 * can specify both for older kernels.
4203 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4205 struct nl80211_sta_flag_update *sta_flags;
4207 sta_flags = nla_data(nla);
4208 params->sta_flags_mask = sta_flags->mask;
4209 params->sta_flags_set = sta_flags->set;
4210 params->sta_flags_set &= params->sta_flags_mask;
4211 if ((params->sta_flags_mask |
4212 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4217 /* if present, parse the old attribute */
4219 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
4223 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
4224 sta_flags_policy, info->extack))
4228 * Only allow certain flags for interface types so that
4229 * other attributes are silently ignored. Remember that
4230 * this is backward compatibility code with old userspace
4231 * and shouldn't be hit in other cases anyway.
4234 case NL80211_IFTYPE_AP:
4235 case NL80211_IFTYPE_AP_VLAN:
4236 case NL80211_IFTYPE_P2P_GO:
4237 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4238 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4239 BIT(NL80211_STA_FLAG_WME) |
4240 BIT(NL80211_STA_FLAG_MFP);
4242 case NL80211_IFTYPE_P2P_CLIENT:
4243 case NL80211_IFTYPE_STATION:
4244 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4245 BIT(NL80211_STA_FLAG_TDLS_PEER);
4247 case NL80211_IFTYPE_MESH_POINT:
4248 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4249 BIT(NL80211_STA_FLAG_MFP) |
4250 BIT(NL80211_STA_FLAG_AUTHORIZED);
4255 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4257 params->sta_flags_set |= (1<<flag);
4259 /* no longer support new API additions in old API */
4260 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4268 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4271 struct nlattr *rate;
4274 enum nl80211_rate_info rate_flg;
4276 rate = nla_nest_start(msg, attr);
4280 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4281 bitrate = cfg80211_calculate_bitrate(info);
4282 /* report 16-bit bitrate only if we can */
4283 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
4285 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4287 if (bitrate_compat > 0 &&
4288 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4292 case RATE_INFO_BW_5:
4293 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4295 case RATE_INFO_BW_10:
4296 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4301 case RATE_INFO_BW_20:
4304 case RATE_INFO_BW_40:
4305 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4307 case RATE_INFO_BW_80:
4308 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4310 case RATE_INFO_BW_160:
4311 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4315 if (rate_flg && nla_put_flag(msg, rate_flg))
4318 if (info->flags & RATE_INFO_FLAGS_MCS) {
4319 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4321 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4322 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4324 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4325 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4327 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4329 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4330 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4334 nla_nest_end(msg, rate);
4338 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4347 attr = nla_nest_start(msg, id);
4351 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4352 if (!(mask & BIT(i)))
4355 if (nla_put_u8(msg, i, signal[i]))
4359 nla_nest_end(msg, attr);
4364 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4366 struct cfg80211_registered_device *rdev,
4367 struct net_device *dev,
4368 const u8 *mac_addr, struct station_info *sinfo)
4371 struct nlattr *sinfoattr, *bss_param;
4373 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
4377 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4378 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4379 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4380 goto nla_put_failure;
4382 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4384 goto nla_put_failure;
4386 #define PUT_SINFO(attr, memb, type) do { \
4387 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
4388 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4389 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4391 goto nla_put_failure; \
4393 #define PUT_SINFO_U64(attr, memb) do { \
4394 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4395 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4396 sinfo->memb, NL80211_STA_INFO_PAD)) \
4397 goto nla_put_failure; \
4400 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4401 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4403 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4404 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
4405 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
4406 (u32)sinfo->rx_bytes))
4407 goto nla_put_failure;
4409 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4410 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
4411 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
4412 (u32)sinfo->tx_bytes))
4413 goto nla_put_failure;
4415 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4416 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
4417 PUT_SINFO(LLID, llid, u16);
4418 PUT_SINFO(PLID, plid, u16);
4419 PUT_SINFO(PLINK_STATE, plink_state, u8);
4420 PUT_SINFO_U64(RX_DURATION, rx_duration);
4422 switch (rdev->wiphy.signal_type) {
4423 case CFG80211_SIGNAL_TYPE_MBM:
4424 PUT_SINFO(SIGNAL, signal, u8);
4425 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
4430 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
4431 if (!nl80211_put_signal(msg, sinfo->chains,
4432 sinfo->chain_signal,
4433 NL80211_STA_INFO_CHAIN_SIGNAL))
4434 goto nla_put_failure;
4436 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
4437 if (!nl80211_put_signal(msg, sinfo->chains,
4438 sinfo->chain_signal_avg,
4439 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4440 goto nla_put_failure;
4442 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
4443 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4444 NL80211_STA_INFO_TX_BITRATE))
4445 goto nla_put_failure;
4447 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
4448 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4449 NL80211_STA_INFO_RX_BITRATE))
4450 goto nla_put_failure;
4453 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4454 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4455 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4456 PUT_SINFO(TX_FAILED, tx_failed, u32);
4457 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4458 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4459 PUT_SINFO(LOCAL_PM, local_pm, u32);
4460 PUT_SINFO(PEER_PM, peer_pm, u32);
4461 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4463 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
4464 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4466 goto nla_put_failure;
4468 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4469 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4470 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4471 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4472 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4473 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4474 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4475 sinfo->bss_param.dtim_period) ||
4476 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4477 sinfo->bss_param.beacon_interval))
4478 goto nla_put_failure;
4480 nla_nest_end(msg, bss_param);
4482 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
4483 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4484 sizeof(struct nl80211_sta_flag_update),
4486 goto nla_put_failure;
4488 PUT_SINFO_U64(T_OFFSET, t_offset);
4489 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4490 PUT_SINFO_U64(BEACON_RX, rx_beacon);
4491 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
4492 PUT_SINFO(ACK_SIGNAL, ack_signal, u8);
4495 #undef PUT_SINFO_U64
4497 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4498 struct nlattr *tidsattr;
4501 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4503 goto nla_put_failure;
4505 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4506 struct cfg80211_tid_stats *tidstats;
4507 struct nlattr *tidattr;
4509 tidstats = &sinfo->pertid[tid];
4511 if (!tidstats->filled)
4514 tidattr = nla_nest_start(msg, tid + 1);
4516 goto nla_put_failure;
4518 #define PUT_TIDVAL_U64(attr, memb) do { \
4519 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
4520 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4521 tidstats->memb, NL80211_TID_STATS_PAD)) \
4522 goto nla_put_failure; \
4525 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4526 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4527 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4528 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
4530 #undef PUT_TIDVAL_U64
4531 nla_nest_end(msg, tidattr);
4534 nla_nest_end(msg, tidsattr);
4537 nla_nest_end(msg, sinfoattr);
4539 if (sinfo->assoc_req_ies_len &&
4540 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4541 sinfo->assoc_req_ies))
4542 goto nla_put_failure;
4544 genlmsg_end(msg, hdr);
4548 genlmsg_cancel(msg, hdr);
4552 static int nl80211_dump_station(struct sk_buff *skb,
4553 struct netlink_callback *cb)
4555 struct station_info sinfo;
4556 struct cfg80211_registered_device *rdev;
4557 struct wireless_dev *wdev;
4558 u8 mac_addr[ETH_ALEN];
4559 int sta_idx = cb->args[2];
4563 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4567 if (!wdev->netdev) {
4572 if (!rdev->ops->dump_station) {
4578 memset(&sinfo, 0, sizeof(sinfo));
4579 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
4586 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
4587 NETLINK_CB(cb->skb).portid,
4588 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4589 rdev, wdev->netdev, mac_addr,
4597 cb->args[2] = sta_idx;
4605 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4607 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4608 struct net_device *dev = info->user_ptr[1];
4609 struct station_info sinfo;
4610 struct sk_buff *msg;
4611 u8 *mac_addr = NULL;
4614 memset(&sinfo, 0, sizeof(sinfo));
4616 if (!info->attrs[NL80211_ATTR_MAC])
4619 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4621 if (!rdev->ops->get_station)
4624 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
4628 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4632 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4633 info->snd_portid, info->snd_seq, 0,
4634 rdev, dev, mac_addr, &sinfo) < 0) {
4639 return genlmsg_reply(msg, info);
4642 int cfg80211_check_station_change(struct wiphy *wiphy,
4643 struct station_parameters *params,
4644 enum cfg80211_station_type statype)
4646 if (params->listen_interval != -1 &&
4647 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4650 if (params->support_p2p_ps != -1 &&
4651 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4655 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4656 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4659 /* When you run into this, adjust the code below for the new flag */
4660 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4663 case CFG80211_STA_MESH_PEER_KERNEL:
4664 case CFG80211_STA_MESH_PEER_USER:
4666 * No ignoring the TDLS flag here -- the userspace mesh
4667 * code doesn't have the bug of including TDLS in the
4670 if (params->sta_flags_mask &
4671 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4672 BIT(NL80211_STA_FLAG_MFP) |
4673 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4676 case CFG80211_STA_TDLS_PEER_SETUP:
4677 case CFG80211_STA_TDLS_PEER_ACTIVE:
4678 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4680 /* ignore since it can't change */
4681 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4684 /* disallow mesh-specific things */
4685 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4687 if (params->local_pm)
4689 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4693 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4694 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4695 /* TDLS can't be set, ... */
4696 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4699 * ... but don't bother the driver with it. This works around
4700 * a hostapd/wpa_supplicant issue -- it always includes the
4701 * TLDS_PEER flag in the mask even for AP mode.
4703 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4706 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4707 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4708 /* reject other things that can't change */
4709 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4711 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4713 if (params->supported_rates)
4715 if (params->ext_capab || params->ht_capa || params->vht_capa)
4719 if (statype != CFG80211_STA_AP_CLIENT &&
4720 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4726 case CFG80211_STA_AP_MLME_CLIENT:
4727 /* Use this only for authorizing/unauthorizing a station */
4728 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4731 case CFG80211_STA_AP_CLIENT:
4732 case CFG80211_STA_AP_CLIENT_UNASSOC:
4733 /* accept only the listed bits */
4734 if (params->sta_flags_mask &
4735 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4736 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4737 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4738 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4739 BIT(NL80211_STA_FLAG_WME) |
4740 BIT(NL80211_STA_FLAG_MFP)))
4743 /* but authenticated/associated only if driver handles it */
4744 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4745 params->sta_flags_mask &
4746 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4747 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4750 case CFG80211_STA_IBSS:
4751 case CFG80211_STA_AP_STA:
4752 /* reject any changes other than AUTHORIZED */
4753 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4756 case CFG80211_STA_TDLS_PEER_SETUP:
4757 /* reject any changes other than AUTHORIZED or WME */
4758 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4759 BIT(NL80211_STA_FLAG_WME)))
4761 /* force (at least) rates when authorizing */
4762 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4763 !params->supported_rates)
4766 case CFG80211_STA_TDLS_PEER_ACTIVE:
4767 /* reject any changes */
4769 case CFG80211_STA_MESH_PEER_KERNEL:
4770 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4773 case CFG80211_STA_MESH_PEER_USER:
4774 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4775 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4781 * Older kernel versions ignored this attribute entirely, so don't
4782 * reject attempts to update it but mark it as unused instead so the
4783 * driver won't look at the data.
4785 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4786 statype != CFG80211_STA_TDLS_PEER_SETUP)
4787 params->opmode_notif_used = false;
4791 EXPORT_SYMBOL(cfg80211_check_station_change);
4794 * Get vlan interface making sure it is running and on the right wiphy.
4796 static struct net_device *get_vlan(struct genl_info *info,
4797 struct cfg80211_registered_device *rdev)
4799 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4800 struct net_device *v;
4806 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4808 return ERR_PTR(-ENODEV);
4810 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4815 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4816 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4817 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4822 if (!netif_running(v)) {
4830 return ERR_PTR(ret);
4833 static const struct nla_policy
4834 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4835 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4836 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4839 static int nl80211_parse_sta_wme(struct genl_info *info,
4840 struct station_parameters *params)
4842 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4846 /* parse WME attributes if present */
4847 if (!info->attrs[NL80211_ATTR_STA_WME])
4850 nla = info->attrs[NL80211_ATTR_STA_WME];
4851 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4852 nl80211_sta_wme_policy, info->extack);
4856 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4857 params->uapsd_queues = nla_get_u8(
4858 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4859 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4862 if (tb[NL80211_STA_WME_MAX_SP])
4863 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4865 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4868 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4873 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4874 struct station_parameters *params)
4876 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4877 params->supported_channels =
4878 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4879 params->supported_channels_len =
4880 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4882 * Need to include at least one (first channel, number of
4883 * channels) tuple for each subband, and must have proper
4884 * tuples for the rest of the data as well.
4886 if (params->supported_channels_len < 2)
4888 if (params->supported_channels_len % 2)
4892 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4893 params->supported_oper_classes =
4894 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4895 params->supported_oper_classes_len =
4896 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4898 * The value of the Length field of the Supported Operating
4899 * Classes element is between 2 and 253.
4901 if (params->supported_oper_classes_len < 2 ||
4902 params->supported_oper_classes_len > 253)
4908 static int nl80211_set_station_tdls(struct genl_info *info,
4909 struct station_parameters *params)
4912 /* Dummy STA entry gets updated once the peer capabilities are known */
4913 if (info->attrs[NL80211_ATTR_PEER_AID])
4914 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4915 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4917 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4918 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4920 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4922 err = nl80211_parse_sta_channel_info(info, params);
4926 return nl80211_parse_sta_wme(info, params);
4929 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4932 struct net_device *dev = info->user_ptr[1];
4933 struct station_parameters params;
4937 memset(¶ms, 0, sizeof(params));
4939 if (!rdev->ops->change_station)
4943 * AID and listen_interval properties can be set only for unassociated
4944 * station. Include these parameters here and will check them in
4945 * cfg80211_check_station_change().
4947 if (info->attrs[NL80211_ATTR_STA_AID])
4948 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4950 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4951 params.listen_interval =
4952 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4954 params.listen_interval = -1;
4956 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4959 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4960 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4963 params.support_p2p_ps = tmp;
4965 params.support_p2p_ps = -1;
4968 if (!info->attrs[NL80211_ATTR_MAC])
4971 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4973 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4974 params.supported_rates =
4975 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4976 params.supported_rates_len =
4977 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4980 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4982 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4983 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4986 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4988 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4989 params.ext_capab_len =
4990 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4993 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4996 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4997 params.plink_action =
4998 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4999 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5003 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
5004 params.plink_state =
5005 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
5006 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
5008 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
5009 params.peer_aid = nla_get_u16(
5010 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
5011 if (params.peer_aid > IEEE80211_MAX_AID)
5014 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
5017 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
5018 enum nl80211_mesh_power_mode pm = nla_get_u32(
5019 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
5021 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
5022 pm > NL80211_MESH_POWER_MAX)
5025 params.local_pm = pm;
5028 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5029 params.opmode_notif_used = true;
5030 params.opmode_notif =
5031 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5034 /* Include parameters for TDLS peer (will check later) */
5035 err = nl80211_set_station_tdls(info, ¶ms);
5039 params.vlan = get_vlan(info, rdev);
5040 if (IS_ERR(params.vlan))
5041 return PTR_ERR(params.vlan);
5043 switch (dev->ieee80211_ptr->iftype) {
5044 case NL80211_IFTYPE_AP:
5045 case NL80211_IFTYPE_AP_VLAN:
5046 case NL80211_IFTYPE_P2P_GO:
5047 case NL80211_IFTYPE_P2P_CLIENT:
5048 case NL80211_IFTYPE_STATION:
5049 case NL80211_IFTYPE_ADHOC:
5050 case NL80211_IFTYPE_MESH_POINT:
5057 /* driver will call cfg80211_check_station_change() */
5058 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
5062 dev_put(params.vlan);
5067 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
5069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5071 struct net_device *dev = info->user_ptr[1];
5072 struct station_parameters params;
5073 u8 *mac_addr = NULL;
5074 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5075 BIT(NL80211_STA_FLAG_ASSOCIATED);
5077 memset(¶ms, 0, sizeof(params));
5079 if (!rdev->ops->add_station)
5082 if (!info->attrs[NL80211_ATTR_MAC])
5085 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5088 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
5091 if (!info->attrs[NL80211_ATTR_STA_AID] &&
5092 !info->attrs[NL80211_ATTR_PEER_AID])
5095 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5096 params.supported_rates =
5097 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5098 params.supported_rates_len =
5099 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5100 params.listen_interval =
5101 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
5103 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5106 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5107 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5110 params.support_p2p_ps = tmp;
5113 * if not specified, assume it's supported for P2P GO interface,
5114 * and is NOT supported for AP interface
5116 params.support_p2p_ps =
5117 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5120 if (info->attrs[NL80211_ATTR_PEER_AID])
5121 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
5123 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
5124 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5127 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5129 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5130 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5133 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5135 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5136 params.ext_capab_len =
5137 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5140 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5142 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5144 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5146 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5148 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5149 params.opmode_notif_used = true;
5150 params.opmode_notif =
5151 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5154 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
5155 params.plink_action =
5156 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5157 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5161 err = nl80211_parse_sta_channel_info(info, ¶ms);
5165 err = nl80211_parse_sta_wme(info, ¶ms);
5169 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5172 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5173 * as userspace might just pass through the capabilities from the IEs
5174 * directly, rather than enforcing this restriction and returning an
5175 * error in this case.
5177 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5178 params.ht_capa = NULL;
5179 params.vht_capa = NULL;
5182 /* When you run into this, adjust the code below for the new flag */
5183 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5185 switch (dev->ieee80211_ptr->iftype) {
5186 case NL80211_IFTYPE_AP:
5187 case NL80211_IFTYPE_AP_VLAN:
5188 case NL80211_IFTYPE_P2P_GO:
5189 /* ignore WME attributes if iface/sta is not capable */
5190 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5191 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5192 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5194 /* TDLS peers cannot be added */
5195 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5196 info->attrs[NL80211_ATTR_PEER_AID])
5198 /* but don't bother the driver with it */
5199 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
5201 /* allow authenticated/associated only if driver handles it */
5202 if (!(rdev->wiphy.features &
5203 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
5204 params.sta_flags_mask & auth_assoc)
5207 /* Older userspace, or userspace wanting to be compatible with
5208 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5209 * and assoc flags in the mask, but assumes the station will be
5210 * added as associated anyway since this was the required driver
5211 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5213 * In order to not bother drivers with this quirk in the API
5214 * set the flags in both the mask and set for new stations in
5217 if (!(params.sta_flags_mask & auth_assoc)) {
5218 params.sta_flags_mask |= auth_assoc;
5219 params.sta_flags_set |= auth_assoc;
5222 /* must be last in here for error handling */
5223 params.vlan = get_vlan(info, rdev);
5224 if (IS_ERR(params.vlan))
5225 return PTR_ERR(params.vlan);
5227 case NL80211_IFTYPE_MESH_POINT:
5228 /* ignore uAPSD data */
5229 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5231 /* associated is disallowed */
5232 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5234 /* TDLS peers cannot be added */
5235 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5236 info->attrs[NL80211_ATTR_PEER_AID])
5239 case NL80211_IFTYPE_STATION:
5240 case NL80211_IFTYPE_P2P_CLIENT:
5241 /* ignore uAPSD data */
5242 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5244 /* these are disallowed */
5245 if (params.sta_flags_mask &
5246 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5247 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
5249 /* Only TDLS peers can be added */
5250 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5252 /* Can only add if TDLS ... */
5253 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5255 /* ... with external setup is supported */
5256 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5259 * Older wpa_supplicant versions always mark the TDLS peer
5260 * as authorized, but it shouldn't yet be.
5262 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
5268 /* be aware of params.vlan when changing code here */
5270 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
5273 dev_put(params.vlan);
5277 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5280 struct net_device *dev = info->user_ptr[1];
5281 struct station_del_parameters params;
5283 memset(¶ms, 0, sizeof(params));
5285 if (info->attrs[NL80211_ATTR_MAC])
5286 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5288 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5289 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5290 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5291 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5294 if (!rdev->ops->del_station)
5297 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5299 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5300 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5301 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5304 /* Default to Deauthentication frame */
5305 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5308 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5309 params.reason_code =
5310 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5311 if (params.reason_code == 0)
5312 return -EINVAL; /* 0 is reserved */
5314 /* Default to reason code 2 */
5315 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5318 return rdev_del_station(rdev, dev, ¶ms);
5321 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
5322 int flags, struct net_device *dev,
5323 u8 *dst, u8 *next_hop,
5324 struct mpath_info *pinfo)
5327 struct nlattr *pinfoattr;
5329 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
5333 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5334 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5335 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5336 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5337 goto nla_put_failure;
5339 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5341 goto nla_put_failure;
5342 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5343 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5345 goto nla_put_failure;
5346 if (((pinfo->filled & MPATH_INFO_SN) &&
5347 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5348 ((pinfo->filled & MPATH_INFO_METRIC) &&
5349 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5351 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5352 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5354 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5355 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5357 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5358 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5359 pinfo->discovery_timeout)) ||
5360 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5361 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5362 pinfo->discovery_retries)))
5363 goto nla_put_failure;
5365 nla_nest_end(msg, pinfoattr);
5367 genlmsg_end(msg, hdr);
5371 genlmsg_cancel(msg, hdr);
5375 static int nl80211_dump_mpath(struct sk_buff *skb,
5376 struct netlink_callback *cb)
5378 struct mpath_info pinfo;
5379 struct cfg80211_registered_device *rdev;
5380 struct wireless_dev *wdev;
5382 u8 next_hop[ETH_ALEN];
5383 int path_idx = cb->args[2];
5387 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5391 if (!rdev->ops->dump_mpath) {
5396 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5402 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
5409 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5410 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5411 wdev->netdev, dst, next_hop,
5419 cb->args[2] = path_idx;
5426 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5430 struct net_device *dev = info->user_ptr[1];
5431 struct mpath_info pinfo;
5432 struct sk_buff *msg;
5434 u8 next_hop[ETH_ALEN];
5436 memset(&pinfo, 0, sizeof(pinfo));
5438 if (!info->attrs[NL80211_ATTR_MAC])
5441 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5443 if (!rdev->ops->get_mpath)
5446 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5449 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
5453 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5457 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5458 dev, dst, next_hop, &pinfo) < 0) {
5463 return genlmsg_reply(msg, info);
5466 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5469 struct net_device *dev = info->user_ptr[1];
5471 u8 *next_hop = NULL;
5473 if (!info->attrs[NL80211_ATTR_MAC])
5476 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5479 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5480 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5482 if (!rdev->ops->change_mpath)
5485 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5488 return rdev_change_mpath(rdev, dev, dst, next_hop);
5491 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5494 struct net_device *dev = info->user_ptr[1];
5496 u8 *next_hop = NULL;
5498 if (!info->attrs[NL80211_ATTR_MAC])
5501 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5504 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5505 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5507 if (!rdev->ops->add_mpath)
5510 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5513 return rdev_add_mpath(rdev, dev, dst, next_hop);
5516 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5519 struct net_device *dev = info->user_ptr[1];
5522 if (info->attrs[NL80211_ATTR_MAC])
5523 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5525 if (!rdev->ops->del_mpath)
5528 return rdev_del_mpath(rdev, dev, dst);
5531 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5535 struct net_device *dev = info->user_ptr[1];
5536 struct mpath_info pinfo;
5537 struct sk_buff *msg;
5541 memset(&pinfo, 0, sizeof(pinfo));
5543 if (!info->attrs[NL80211_ATTR_MAC])
5546 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5548 if (!rdev->ops->get_mpp)
5551 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5554 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5558 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5562 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5563 dev, dst, mpp, &pinfo) < 0) {
5568 return genlmsg_reply(msg, info);
5571 static int nl80211_dump_mpp(struct sk_buff *skb,
5572 struct netlink_callback *cb)
5574 struct mpath_info pinfo;
5575 struct cfg80211_registered_device *rdev;
5576 struct wireless_dev *wdev;
5579 int path_idx = cb->args[2];
5583 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5587 if (!rdev->ops->dump_mpp) {
5592 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5598 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5605 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5606 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5607 wdev->netdev, dst, mpp,
5615 cb->args[2] = path_idx;
5622 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5624 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5625 struct net_device *dev = info->user_ptr[1];
5626 struct wireless_dev *wdev = dev->ieee80211_ptr;
5627 struct bss_parameters params;
5630 memset(¶ms, 0, sizeof(params));
5631 /* default to not changing parameters */
5632 params.use_cts_prot = -1;
5633 params.use_short_preamble = -1;
5634 params.use_short_slot_time = -1;
5635 params.ap_isolate = -1;
5636 params.ht_opmode = -1;
5637 params.p2p_ctwindow = -1;
5638 params.p2p_opp_ps = -1;
5640 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5641 params.use_cts_prot =
5642 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5643 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5644 params.use_short_preamble =
5645 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5646 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5647 params.use_short_slot_time =
5648 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
5649 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5650 params.basic_rates =
5651 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5652 params.basic_rates_len =
5653 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5655 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5656 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
5657 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5659 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
5661 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5662 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5664 params.p2p_ctwindow =
5665 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5666 if (params.p2p_ctwindow < 0)
5668 if (params.p2p_ctwindow != 0 &&
5669 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5673 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5676 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5678 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5681 params.p2p_opp_ps = tmp;
5682 if (params.p2p_opp_ps &&
5683 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5687 if (!rdev->ops->change_bss)
5690 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5691 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5695 err = rdev_change_bss(rdev, dev, ¶ms);
5701 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5705 enum nl80211_user_reg_hint_type user_reg_hint_type;
5709 * You should only get this when cfg80211 hasn't yet initialized
5710 * completely when built-in to the kernel right between the time
5711 * window between nl80211_init() and regulatory_init(), if that is
5714 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5715 return -EINPROGRESS;
5717 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5718 user_reg_hint_type =
5719 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5721 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5723 switch (user_reg_hint_type) {
5724 case NL80211_USER_REG_HINT_USER:
5725 case NL80211_USER_REG_HINT_CELL_BASE:
5726 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5729 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5730 return regulatory_hint_user(data, user_reg_hint_type);
5731 case NL80211_USER_REG_HINT_INDOOR:
5732 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5733 owner_nlportid = info->snd_portid;
5734 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5740 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5746 static int nl80211_reload_regdb(struct sk_buff *skb, struct genl_info *info)
5748 return reg_reload_regdb();
5751 static int nl80211_get_mesh_config(struct sk_buff *skb,
5752 struct genl_info *info)
5754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5755 struct net_device *dev = info->user_ptr[1];
5756 struct wireless_dev *wdev = dev->ieee80211_ptr;
5757 struct mesh_config cur_params;
5760 struct nlattr *pinfoattr;
5761 struct sk_buff *msg;
5763 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5766 if (!rdev->ops->get_mesh_config)
5770 /* If not connected, get default parameters */
5771 if (!wdev->mesh_id_len)
5772 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5774 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5780 /* Draw up a netlink message to send back */
5781 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5784 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5785 NL80211_CMD_GET_MESH_CONFIG);
5788 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5790 goto nla_put_failure;
5791 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5792 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5793 cur_params.dot11MeshRetryTimeout) ||
5794 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5795 cur_params.dot11MeshConfirmTimeout) ||
5796 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5797 cur_params.dot11MeshHoldingTimeout) ||
5798 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5799 cur_params.dot11MeshMaxPeerLinks) ||
5800 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5801 cur_params.dot11MeshMaxRetries) ||
5802 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5803 cur_params.dot11MeshTTL) ||
5804 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5805 cur_params.element_ttl) ||
5806 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5807 cur_params.auto_open_plinks) ||
5808 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5809 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5810 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5811 cur_params.dot11MeshHWMPmaxPREQretries) ||
5812 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5813 cur_params.path_refresh_time) ||
5814 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5815 cur_params.min_discovery_timeout) ||
5816 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5817 cur_params.dot11MeshHWMPactivePathTimeout) ||
5818 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5819 cur_params.dot11MeshHWMPpreqMinInterval) ||
5820 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5821 cur_params.dot11MeshHWMPperrMinInterval) ||
5822 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5823 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5824 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5825 cur_params.dot11MeshHWMPRootMode) ||
5826 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5827 cur_params.dot11MeshHWMPRannInterval) ||
5828 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5829 cur_params.dot11MeshGateAnnouncementProtocol) ||
5830 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5831 cur_params.dot11MeshForwarding) ||
5832 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5833 cur_params.rssi_threshold) ||
5834 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5835 cur_params.ht_opmode) ||
5836 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5837 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5838 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5839 cur_params.dot11MeshHWMProotInterval) ||
5840 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5841 cur_params.dot11MeshHWMPconfirmationInterval) ||
5842 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5843 cur_params.power_mode) ||
5844 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5845 cur_params.dot11MeshAwakeWindowDuration) ||
5846 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5847 cur_params.plink_timeout))
5848 goto nla_put_failure;
5849 nla_nest_end(msg, pinfoattr);
5850 genlmsg_end(msg, hdr);
5851 return genlmsg_reply(msg, info);
5859 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5860 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5861 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5862 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5863 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5864 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5865 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5866 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5867 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5868 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5869 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5870 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5871 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5872 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5873 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5874 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5875 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5876 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5877 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5878 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5879 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5880 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5881 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5882 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5883 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5884 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5885 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5886 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5887 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5890 static const struct nla_policy
5891 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5892 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5893 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5894 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5895 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5896 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5897 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5898 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5899 .len = IEEE80211_MAX_DATA_LEN },
5900 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5903 static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5905 u8 val = nla_get_u8(nla);
5906 if (val < min || val > max)
5912 static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5914 u8 val = nla_get_u8(nla);
5915 if (val < min || val > max)
5921 static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5923 u16 val = nla_get_u16(nla);
5924 if (val < min || val > max)
5930 static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5932 u32 val = nla_get_u32(nla);
5933 if (val < min || val > max)
5939 static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5941 s32 val = nla_get_s32(nla);
5942 if (val < min || val > max)
5948 static int nl80211_check_power_mode(const struct nlattr *nla,
5949 enum nl80211_mesh_power_mode min,
5950 enum nl80211_mesh_power_mode max,
5951 enum nl80211_mesh_power_mode *out)
5953 u32 val = nla_get_u32(nla);
5954 if (val < min || val > max)
5960 static int nl80211_parse_mesh_config(struct genl_info *info,
5961 struct mesh_config *cfg,
5964 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5968 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5971 if (fn(tb[attr], min, max, &cfg->param)) \
5973 mask |= (1 << (attr - 1)); \
5977 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5979 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5980 info->attrs[NL80211_ATTR_MESH_CONFIG],
5981 nl80211_meshconf_params_policy, info->extack))
5984 /* This makes sure that there aren't more than 32 mesh config
5985 * parameters (otherwise our bitfield scheme would not work.) */
5986 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5988 /* Fill in the params struct */
5989 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5990 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5992 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5993 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5995 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5996 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5998 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5999 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
6001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
6002 mask, NL80211_MESHCONF_MAX_RETRIES,
6004 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
6005 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
6006 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
6007 mask, NL80211_MESHCONF_ELEMENT_TTL,
6009 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
6010 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
6011 nl80211_check_bool);
6012 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
6014 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
6016 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
6017 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
6019 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
6020 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
6022 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
6023 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
6025 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
6027 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
6029 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
6031 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
6033 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
6035 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
6037 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6038 dot11MeshHWMPnetDiameterTraversalTime,
6040 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
6042 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
6043 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
6045 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
6046 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
6048 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6049 dot11MeshGateAnnouncementProtocol, 0, 1,
6050 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
6051 nl80211_check_bool);
6052 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
6053 mask, NL80211_MESHCONF_FORWARDING,
6054 nl80211_check_bool);
6055 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
6056 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
6059 * Check HT operation mode based on
6060 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
6062 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
6063 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
6065 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
6066 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
6067 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6070 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
6071 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6074 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
6075 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
6076 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
6077 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
6080 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
6081 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
6082 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6086 cfg->ht_opmode = ht_opmode;
6087 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
6089 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
6091 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
6093 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
6094 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
6096 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6097 dot11MeshHWMPconfirmationInterval,
6099 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
6101 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
6102 NL80211_MESH_POWER_ACTIVE,
6103 NL80211_MESH_POWER_MAX,
6104 mask, NL80211_MESHCONF_POWER_MODE,
6105 nl80211_check_power_mode);
6106 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
6108 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
6109 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
6110 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
6117 #undef FILL_IN_MESH_PARAM_IF_SET
6120 static int nl80211_parse_mesh_setup(struct genl_info *info,
6121 struct mesh_setup *setup)
6123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6124 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6126 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6128 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6129 info->attrs[NL80211_ATTR_MESH_SETUP],
6130 nl80211_mesh_setup_params_policy, info->extack))
6133 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6134 setup->sync_method =
6135 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6136 IEEE80211_SYNC_METHOD_VENDOR :
6137 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6139 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6140 setup->path_sel_proto =
6141 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6142 IEEE80211_PATH_PROTOCOL_VENDOR :
6143 IEEE80211_PATH_PROTOCOL_HWMP;
6145 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6146 setup->path_metric =
6147 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6148 IEEE80211_PATH_METRIC_VENDOR :
6149 IEEE80211_PATH_METRIC_AIRTIME;
6151 if (tb[NL80211_MESH_SETUP_IE]) {
6152 struct nlattr *ieattr =
6153 tb[NL80211_MESH_SETUP_IE];
6154 if (!is_valid_ie_attr(ieattr))
6156 setup->ie = nla_data(ieattr);
6157 setup->ie_len = nla_len(ieattr);
6159 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6160 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6162 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
6163 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6164 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
6165 if (setup->is_secure)
6166 setup->user_mpm = true;
6168 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6169 if (!setup->user_mpm)
6172 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6178 static int nl80211_update_mesh_config(struct sk_buff *skb,
6179 struct genl_info *info)
6181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6182 struct net_device *dev = info->user_ptr[1];
6183 struct wireless_dev *wdev = dev->ieee80211_ptr;
6184 struct mesh_config cfg;
6188 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6191 if (!rdev->ops->update_mesh_config)
6194 err = nl80211_parse_mesh_config(info, &cfg, &mask);
6199 if (!wdev->mesh_id_len)
6203 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
6210 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6211 struct sk_buff *msg)
6213 struct nlattr *nl_reg_rules;
6216 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6217 (regdom->dfs_region &&
6218 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
6219 goto nla_put_failure;
6221 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6223 goto nla_put_failure;
6225 for (i = 0; i < regdom->n_reg_rules; i++) {
6226 struct nlattr *nl_reg_rule;
6227 const struct ieee80211_reg_rule *reg_rule;
6228 const struct ieee80211_freq_range *freq_range;
6229 const struct ieee80211_power_rule *power_rule;
6230 unsigned int max_bandwidth_khz;
6232 reg_rule = ®dom->reg_rules[i];
6233 freq_range = ®_rule->freq_range;
6234 power_rule = ®_rule->power_rule;
6236 nl_reg_rule = nla_nest_start(msg, i);
6238 goto nla_put_failure;
6240 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6241 if (!max_bandwidth_khz)
6242 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6245 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6247 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6248 freq_range->start_freq_khz) ||
6249 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6250 freq_range->end_freq_khz) ||
6251 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
6252 max_bandwidth_khz) ||
6253 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6254 power_rule->max_antenna_gain) ||
6255 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
6256 power_rule->max_eirp) ||
6257 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6258 reg_rule->dfs_cac_ms))
6259 goto nla_put_failure;
6261 nla_nest_end(msg, nl_reg_rule);
6264 nla_nest_end(msg, nl_reg_rules);
6271 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6273 const struct ieee80211_regdomain *regdom = NULL;
6274 struct cfg80211_registered_device *rdev;
6275 struct wiphy *wiphy = NULL;
6276 struct sk_buff *msg;
6279 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6283 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6284 NL80211_CMD_GET_REG);
6288 if (info->attrs[NL80211_ATTR_WIPHY]) {
6291 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6294 return PTR_ERR(rdev);
6297 wiphy = &rdev->wiphy;
6298 self_managed = wiphy->regulatory_flags &
6299 REGULATORY_WIPHY_SELF_MANAGED;
6300 regdom = get_wiphy_regdom(wiphy);
6302 /* a self-managed-reg device must have a private regdom */
6303 if (WARN_ON(!regdom && self_managed)) {
6309 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6310 goto nla_put_failure;
6313 if (!wiphy && reg_last_request_cell_base() &&
6314 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6315 NL80211_USER_REG_HINT_CELL_BASE))
6316 goto nla_put_failure;
6321 regdom = rcu_dereference(cfg80211_regdomain);
6323 if (nl80211_put_regdom(regdom, msg))
6324 goto nla_put_failure_rcu;
6328 genlmsg_end(msg, hdr);
6329 return genlmsg_reply(msg, info);
6331 nla_put_failure_rcu:
6339 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6340 u32 seq, int flags, struct wiphy *wiphy,
6341 const struct ieee80211_regdomain *regdom)
6343 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6344 NL80211_CMD_GET_REG);
6349 genl_dump_check_consistent(cb, hdr);
6351 if (nl80211_put_regdom(regdom, msg))
6352 goto nla_put_failure;
6354 if (!wiphy && reg_last_request_cell_base() &&
6355 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6356 NL80211_USER_REG_HINT_CELL_BASE))
6357 goto nla_put_failure;
6360 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6361 goto nla_put_failure;
6363 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6364 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6365 goto nla_put_failure;
6367 genlmsg_end(msg, hdr);
6371 genlmsg_cancel(msg, hdr);
6375 static int nl80211_get_reg_dump(struct sk_buff *skb,
6376 struct netlink_callback *cb)
6378 const struct ieee80211_regdomain *regdom = NULL;
6379 struct cfg80211_registered_device *rdev;
6380 int err, reg_idx, start = cb->args[2];
6384 if (cfg80211_regdomain && start == 0) {
6385 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6387 rtnl_dereference(cfg80211_regdomain));
6392 /* the global regdom is idx 0 */
6394 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6395 regdom = get_wiphy_regdom(&rdev->wiphy);
6399 if (++reg_idx <= start)
6402 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6403 NLM_F_MULTI, &rdev->wiphy, regdom);
6410 cb->args[2] = reg_idx;
6417 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
6418 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6419 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6420 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6421 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6422 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6423 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6424 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6425 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6428 static int parse_reg_rule(struct nlattr *tb[],
6429 struct ieee80211_reg_rule *reg_rule)
6431 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
6432 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
6434 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6436 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6438 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6440 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6442 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6445 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6447 freq_range->start_freq_khz =
6448 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6449 freq_range->end_freq_khz =
6450 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6451 freq_range->max_bandwidth_khz =
6452 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6454 power_rule->max_eirp =
6455 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6457 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6458 power_rule->max_antenna_gain =
6459 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6461 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6462 reg_rule->dfs_cac_ms =
6463 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6468 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6470 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6471 struct nlattr *nl_reg_rule;
6473 int rem_reg_rules, r;
6474 u32 num_rules = 0, rule_idx = 0, size_of_regd;
6475 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
6476 struct ieee80211_regdomain *rd;
6478 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6481 if (!info->attrs[NL80211_ATTR_REG_RULES])
6484 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6486 if (info->attrs[NL80211_ATTR_DFS_REGION])
6487 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6489 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6492 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
6496 if (!reg_is_valid_request(alpha2))
6499 size_of_regd = sizeof(struct ieee80211_regdomain) +
6500 num_rules * sizeof(struct ieee80211_reg_rule);
6502 rd = kzalloc(size_of_regd, GFP_KERNEL);
6506 rd->n_reg_rules = num_rules;
6507 rd->alpha2[0] = alpha2[0];
6508 rd->alpha2[1] = alpha2[1];
6511 * Disable DFS master mode if the DFS region was
6512 * not supported or known on this kernel.
6514 if (reg_supported_dfs_region(dfs_region))
6515 rd->dfs_region = dfs_region;
6517 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6519 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
6520 nl_reg_rule, reg_rule_policy,
6524 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6530 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6536 /* set_regdom takes ownership of rd */
6537 return set_regdom(rd, REGD_SOURCE_CRDA);
6542 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
6544 static int validate_scan_freqs(struct nlattr *freqs)
6546 struct nlattr *attr1, *attr2;
6547 int n_channels = 0, tmp1, tmp2;
6549 nla_for_each_nested(attr1, freqs, tmp1)
6550 if (nla_len(attr1) != sizeof(u32))
6553 nla_for_each_nested(attr1, freqs, tmp1) {
6556 * Some hardware has a limited channel list for
6557 * scanning, and it is pretty much nonsensical
6558 * to scan for a channel twice, so disallow that
6559 * and don't require drivers to check that the
6560 * channel list they get isn't longer than what
6561 * they can scan, as long as they can scan all
6562 * the channels they registered at once.
6564 nla_for_each_nested(attr2, freqs, tmp2)
6565 if (attr1 != attr2 &&
6566 nla_get_u32(attr1) == nla_get_u32(attr2))
6573 static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
6575 return b < NUM_NL80211_BANDS && wiphy->bands[b];
6578 static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6579 struct cfg80211_bss_selection *bss_select)
6581 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6582 struct nlattr *nest;
6587 /* only process one nested attribute */
6588 nest = nla_data(nla);
6589 if (!nla_ok(nest, nla_len(nest)))
6592 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
6593 nl80211_bss_select_policy, NULL);
6597 /* only one attribute may be given */
6598 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6606 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6608 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6609 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6611 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6612 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6613 bss_select->param.band_pref =
6614 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6615 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6619 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6620 struct nl80211_bss_select_rssi_adjust *adj_param;
6622 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6623 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6624 bss_select->param.adjust.band = adj_param->band;
6625 bss_select->param.adjust.delta = adj_param->delta;
6626 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6630 /* user-space did not provide behaviour attribute */
6631 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6634 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6640 static int nl80211_parse_random_mac(struct nlattr **attrs,
6641 u8 *mac_addr, u8 *mac_addr_mask)
6645 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
6646 eth_zero_addr(mac_addr);
6647 eth_zero_addr(mac_addr_mask);
6649 mac_addr_mask[0] = 0x3;
6654 /* need both or none */
6655 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6658 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6659 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6661 /* don't allow or configure an mcast address */
6662 if (!is_multicast_ether_addr(mac_addr_mask) ||
6663 is_multicast_ether_addr(mac_addr))
6667 * allow users to pass a MAC address that has bits set outside
6668 * of the mask, but don't bother drivers with having to deal
6671 for (i = 0; i < ETH_ALEN; i++)
6672 mac_addr[i] &= mac_addr_mask[i];
6677 static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6679 ASSERT_WDEV_LOCK(wdev);
6681 if (!cfg80211_beaconing_iface_active(wdev))
6684 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6687 return regulatory_pre_cac_allowed(wdev->wiphy);
6691 nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev,
6692 void *request, struct nlattr **attrs,
6695 u8 *mac_addr, *mac_addr_mask;
6697 enum nl80211_feature_flags randomness_flag;
6699 if (!attrs[NL80211_ATTR_SCAN_FLAGS])
6702 if (is_sched_scan) {
6703 struct cfg80211_sched_scan_request *req = request;
6705 randomness_flag = wdev ?
6706 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR :
6707 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6708 flags = &req->flags;
6709 mac_addr = req->mac_addr;
6710 mac_addr_mask = req->mac_addr_mask;
6712 struct cfg80211_scan_request *req = request;
6714 randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
6715 flags = &req->flags;
6716 mac_addr = req->mac_addr;
6717 mac_addr_mask = req->mac_addr_mask;
6720 *flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]);
6722 if (((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6723 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
6724 ((*flags & NL80211_SCAN_FLAG_LOW_SPAN) &&
6725 !wiphy_ext_feature_isset(wiphy,
6726 NL80211_EXT_FEATURE_LOW_SPAN_SCAN)) ||
6727 ((*flags & NL80211_SCAN_FLAG_LOW_POWER) &&
6728 !wiphy_ext_feature_isset(wiphy,
6729 NL80211_EXT_FEATURE_LOW_POWER_SCAN)) ||
6730 ((*flags & NL80211_SCAN_FLAG_HIGH_ACCURACY) &&
6731 !wiphy_ext_feature_isset(wiphy,
6732 NL80211_EXT_FEATURE_HIGH_ACCURACY_SCAN)))
6735 if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6738 if (!(wiphy->features & randomness_flag) ||
6739 (wdev && wdev->current_bss))
6742 err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask);
6747 if ((*flags & NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME) &&
6748 !wiphy_ext_feature_isset(wiphy,
6749 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME))
6752 if ((*flags & NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP) &&
6753 !wiphy_ext_feature_isset(wiphy,
6754 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP))
6757 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) &&
6758 !wiphy_ext_feature_isset(wiphy,
6759 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION))
6762 if ((*flags & NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE) &&
6763 !wiphy_ext_feature_isset(wiphy,
6764 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE))
6770 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6773 struct wireless_dev *wdev = info->user_ptr[1];
6774 struct cfg80211_scan_request *request;
6775 struct nlattr *attr;
6776 struct wiphy *wiphy;
6777 int err, tmp, n_ssids = 0, n_channels, i;
6780 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6783 wiphy = &rdev->wiphy;
6785 if (wdev->iftype == NL80211_IFTYPE_NAN)
6788 if (!rdev->ops->scan)
6791 if (rdev->scan_req || rdev->scan_msg) {
6796 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6797 n_channels = validate_scan_freqs(
6798 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6804 n_channels = ieee80211_get_num_supported_channels(wiphy);
6807 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6808 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6811 if (n_ssids > wiphy->max_scan_ssids) {
6816 if (info->attrs[NL80211_ATTR_IE])
6817 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6821 if (ie_len > wiphy->max_scan_ie_len) {
6826 request = kzalloc(sizeof(*request)
6827 + sizeof(*request->ssids) * n_ssids
6828 + sizeof(*request->channels) * n_channels
6829 + ie_len, GFP_KERNEL);
6836 request->ssids = (void *)&request->channels[n_channels];
6837 request->n_ssids = n_ssids;
6840 request->ie = (void *)(request->ssids + n_ssids);
6842 request->ie = (void *)(request->channels + n_channels);
6846 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6847 /* user specified, bail out if channel not found */
6848 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
6849 struct ieee80211_channel *chan;
6851 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6858 /* ignore disabled channels */
6859 if (chan->flags & IEEE80211_CHAN_DISABLED)
6862 request->channels[i] = chan;
6866 enum nl80211_band band;
6869 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6872 if (!wiphy->bands[band])
6874 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6875 struct ieee80211_channel *chan;
6877 chan = &wiphy->bands[band]->channels[j];
6879 if (chan->flags & IEEE80211_CHAN_DISABLED)
6882 request->channels[i] = chan;
6893 request->n_channels = i;
6896 if (!cfg80211_off_channel_oper_allowed(wdev)) {
6897 struct ieee80211_channel *chan;
6899 if (request->n_channels != 1) {
6905 chan = request->channels[0];
6906 if (chan->center_freq != wdev->chandef.chan->center_freq) {
6916 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
6917 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6921 request->ssids[i].ssid_len = nla_len(attr);
6922 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
6927 if (info->attrs[NL80211_ATTR_IE]) {
6928 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6929 memcpy((void *)request->ie,
6930 nla_data(info->attrs[NL80211_ATTR_IE]),
6934 for (i = 0; i < NUM_NL80211_BANDS; i++)
6935 if (wiphy->bands[i])
6937 (1 << wiphy->bands[i]->n_bitrates) - 1;
6939 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6940 nla_for_each_nested(attr,
6941 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6943 enum nl80211_band band = nla_type(attr);
6945 if (band < 0 || band >= NUM_NL80211_BANDS) {
6950 if (!wiphy->bands[band])
6953 err = ieee80211_get_ratemask(wiphy->bands[band],
6956 &request->rates[band]);
6962 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6963 if (!wiphy_ext_feature_isset(wiphy,
6964 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6970 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6971 request->duration_mandatory =
6972 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6975 err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs,
6981 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6983 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6984 * BSSID to scan for. This was problematic because that same attribute
6985 * was already used for another purpose (local random MAC address). The
6986 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6987 * compatibility with older userspace components, also use the
6988 * NL80211_ATTR_MAC value here if it can be determined to be used for
6989 * the specific BSSID use case instead of the random MAC address
6990 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6992 if (info->attrs[NL80211_ATTR_BSSID])
6993 memcpy(request->bssid,
6994 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6995 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6996 info->attrs[NL80211_ATTR_MAC])
6997 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
7000 eth_broadcast_addr(request->bssid);
7002 request->wdev = wdev;
7003 request->wiphy = &rdev->wiphy;
7004 request->scan_start = jiffies;
7006 rdev->scan_req = request;
7007 err = rdev_scan(rdev, request);
7010 nl80211_send_scan_start(rdev, wdev);
7012 dev_hold(wdev->netdev);
7015 rdev->scan_req = NULL;
7023 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
7025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7026 struct wireless_dev *wdev = info->user_ptr[1];
7028 if (!rdev->ops->abort_scan)
7034 if (!rdev->scan_req)
7037 rdev_abort_scan(rdev, wdev);
7042 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
7043 struct cfg80211_sched_scan_request *request,
7044 struct nlattr **attrs)
7046 int tmp, err, i = 0;
7047 struct nlattr *attr;
7049 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7053 * If scan plans are not specified,
7054 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
7055 * case one scan plan will be set with the specified scan
7056 * interval and infinite number of iterations.
7058 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
7062 request->scan_plans[0].interval =
7063 DIV_ROUND_UP(interval, MSEC_PER_SEC);
7064 if (!request->scan_plans[0].interval)
7067 if (request->scan_plans[0].interval >
7068 wiphy->max_sched_scan_plan_interval)
7069 request->scan_plans[0].interval =
7070 wiphy->max_sched_scan_plan_interval;
7075 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
7076 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
7078 if (WARN_ON(i >= n_plans))
7081 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
7082 attr, nl80211_plan_policy, NULL);
7086 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
7089 request->scan_plans[i].interval =
7090 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
7091 if (!request->scan_plans[i].interval ||
7092 request->scan_plans[i].interval >
7093 wiphy->max_sched_scan_plan_interval)
7096 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
7097 request->scan_plans[i].iterations =
7098 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
7099 if (!request->scan_plans[i].iterations ||
7100 (request->scan_plans[i].iterations >
7101 wiphy->max_sched_scan_plan_iterations))
7103 } else if (i < n_plans - 1) {
7105 * All scan plans but the last one must specify
7106 * a finite number of iterations
7115 * The last scan plan must not specify the number of
7116 * iterations, it is supposed to run infinitely
7118 if (request->scan_plans[n_plans - 1].iterations)
7124 static struct cfg80211_sched_scan_request *
7125 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
7126 struct nlattr **attrs, int max_match_sets)
7128 struct cfg80211_sched_scan_request *request;
7129 struct nlattr *attr;
7130 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
7131 enum nl80211_band band;
7133 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
7134 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
7136 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
7137 return ERR_PTR(-EINVAL);
7139 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7140 n_channels = validate_scan_freqs(
7141 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
7143 return ERR_PTR(-EINVAL);
7145 n_channels = ieee80211_get_num_supported_channels(wiphy);
7148 if (attrs[NL80211_ATTR_SCAN_SSIDS])
7149 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7153 if (n_ssids > wiphy->max_sched_scan_ssids)
7154 return ERR_PTR(-EINVAL);
7157 * First, count the number of 'real' matchsets. Due to an issue with
7158 * the old implementation, matchsets containing only the RSSI attribute
7159 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
7160 * RSSI for all matchsets, rather than their own matchset for reporting
7161 * all APs with a strong RSSI. This is needed to be compatible with
7162 * older userspace that treated a matchset with only the RSSI as the
7163 * global RSSI for all other matchsets - if there are other matchsets.
7165 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7166 nla_for_each_nested(attr,
7167 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7169 struct nlattr *rssi;
7171 err = nla_parse_nested(tb,
7172 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7173 attr, nl80211_match_policy,
7176 return ERR_PTR(err);
7178 /* SSID and BSSID are mutually exclusive */
7179 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
7180 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
7181 return ERR_PTR(-EINVAL);
7183 /* add other standalone attributes here */
7184 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
7185 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
7189 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7191 default_match_rssi = nla_get_s32(rssi);
7195 /* However, if there's no other matchset, add the RSSI one */
7196 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7199 if (n_match_sets > max_match_sets)
7200 return ERR_PTR(-EINVAL);
7202 if (attrs[NL80211_ATTR_IE])
7203 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
7207 if (ie_len > wiphy->max_sched_scan_ie_len)
7208 return ERR_PTR(-EINVAL);
7210 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7212 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7213 * each scan plan already specifies its own interval
7215 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7216 return ERR_PTR(-EINVAL);
7218 nla_for_each_nested(attr,
7219 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7223 * The scan interval attribute is kept for backward
7224 * compatibility. If no scan plans are specified and sched scan
7225 * interval is specified, one scan plan will be set with this
7226 * scan interval and infinite number of iterations.
7228 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7229 return ERR_PTR(-EINVAL);
7234 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7235 return ERR_PTR(-EINVAL);
7237 if (!wiphy_ext_feature_isset(
7238 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7239 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7240 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7241 return ERR_PTR(-EINVAL);
7243 request = kzalloc(sizeof(*request)
7244 + sizeof(*request->ssids) * n_ssids
7245 + sizeof(*request->match_sets) * n_match_sets
7246 + sizeof(*request->scan_plans) * n_plans
7247 + sizeof(*request->channels) * n_channels
7248 + ie_len, GFP_KERNEL);
7250 return ERR_PTR(-ENOMEM);
7253 request->ssids = (void *)&request->channels[n_channels];
7254 request->n_ssids = n_ssids;
7257 request->ie = (void *)(request->ssids + n_ssids);
7259 request->ie = (void *)(request->channels + n_channels);
7264 request->match_sets = (void *)(request->ie + ie_len);
7266 request->match_sets =
7267 (void *)(request->ssids + n_ssids);
7269 request->match_sets =
7270 (void *)(request->channels + n_channels);
7272 request->n_match_sets = n_match_sets;
7275 request->scan_plans = (void *)(request->match_sets +
7277 else if (request->ie)
7278 request->scan_plans = (void *)(request->ie + ie_len);
7280 request->scan_plans = (void *)(request->ssids + n_ssids);
7282 request->scan_plans = (void *)(request->channels + n_channels);
7284 request->n_scan_plans = n_plans;
7287 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7288 /* user specified, bail out if channel not found */
7289 nla_for_each_nested(attr,
7290 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
7292 struct ieee80211_channel *chan;
7294 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7301 /* ignore disabled channels */
7302 if (chan->flags & IEEE80211_CHAN_DISABLED)
7305 request->channels[i] = chan;
7310 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7313 if (!wiphy->bands[band])
7315 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7316 struct ieee80211_channel *chan;
7318 chan = &wiphy->bands[band]->channels[j];
7320 if (chan->flags & IEEE80211_CHAN_DISABLED)
7323 request->channels[i] = chan;
7334 request->n_channels = i;
7338 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7340 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
7344 request->ssids[i].ssid_len = nla_len(attr);
7345 memcpy(request->ssids[i].ssid, nla_data(attr),
7352 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7353 nla_for_each_nested(attr,
7354 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7356 struct nlattr *ssid, *bssid, *rssi;
7358 err = nla_parse_nested(tb,
7359 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7360 attr, nl80211_match_policy,
7364 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
7365 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
7366 if (ssid || bssid) {
7367 if (WARN_ON(i >= n_match_sets)) {
7368 /* this indicates a programming error,
7369 * the loop above should have verified
7377 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7381 memcpy(request->match_sets[i].ssid.ssid,
7382 nla_data(ssid), nla_len(ssid));
7383 request->match_sets[i].ssid.ssid_len =
7387 if (nla_len(bssid) != ETH_ALEN) {
7391 memcpy(request->match_sets[i].bssid,
7392 nla_data(bssid), ETH_ALEN);
7395 /* special attribute - old implementation w/a */
7396 request->match_sets[i].rssi_thold =
7398 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7400 request->match_sets[i].rssi_thold =
7406 /* there was no other matchset, so the RSSI one is alone */
7407 if (i == 0 && n_match_sets)
7408 request->match_sets[0].rssi_thold = default_match_rssi;
7410 request->min_rssi_thold = INT_MAX;
7411 for (i = 0; i < n_match_sets; i++)
7412 request->min_rssi_thold =
7413 min(request->match_sets[i].rssi_thold,
7414 request->min_rssi_thold);
7416 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
7420 request->ie_len = ie_len;
7421 memcpy((void *)request->ie,
7422 nla_data(attrs[NL80211_ATTR_IE]),
7426 err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true);
7430 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7432 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7434 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7435 request->relative_rssi = nla_get_s8(
7436 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7437 request->relative_rssi_set = true;
7440 if (request->relative_rssi_set &&
7441 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7442 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7444 rssi_adjust = nla_data(
7445 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7446 request->rssi_adjust.band = rssi_adjust->band;
7447 request->rssi_adjust.delta = rssi_adjust->delta;
7448 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7454 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7458 request->scan_start = jiffies;
7464 return ERR_PTR(err);
7467 static int nl80211_start_sched_scan(struct sk_buff *skb,
7468 struct genl_info *info)
7470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7471 struct net_device *dev = info->user_ptr[1];
7472 struct wireless_dev *wdev = dev->ieee80211_ptr;
7473 struct cfg80211_sched_scan_request *sched_scan_req;
7477 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
7480 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
7481 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
7485 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7487 rdev->wiphy.max_match_sets);
7489 err = PTR_ERR_OR_ZERO(sched_scan_req);
7493 /* leave request id zero for legacy request
7494 * or if driver does not support multi-scheduled scan
7496 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
7497 while (!sched_scan_req->reqid)
7498 sched_scan_req->reqid = rdev->wiphy.cookie_counter++;
7501 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
7505 sched_scan_req->dev = dev;
7506 sched_scan_req->wiphy = &rdev->wiphy;
7508 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7509 sched_scan_req->owner_nlportid = info->snd_portid;
7511 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
7513 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
7517 kfree(sched_scan_req);
7522 static int nl80211_stop_sched_scan(struct sk_buff *skb,
7523 struct genl_info *info)
7525 struct cfg80211_sched_scan_request *req;
7526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7529 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
7532 if (info->attrs[NL80211_ATTR_COOKIE]) {
7533 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7534 return __cfg80211_stop_sched_scan(rdev, cookie, false);
7537 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
7538 struct cfg80211_sched_scan_request,
7540 if (!req || req->reqid ||
7541 (req->owner_nlportid &&
7542 req->owner_nlportid != info->snd_portid))
7545 return cfg80211_stop_sched_scan_req(rdev, req, false);
7548 static int nl80211_start_radar_detection(struct sk_buff *skb,
7549 struct genl_info *info)
7551 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7552 struct net_device *dev = info->user_ptr[1];
7553 struct wireless_dev *wdev = dev->ieee80211_ptr;
7554 struct cfg80211_chan_def chandef;
7555 enum nl80211_dfs_regions dfs_region;
7556 unsigned int cac_time_ms;
7559 dfs_region = reg_get_dfs_region(wdev->wiphy);
7560 if (dfs_region == NL80211_DFS_UNSET)
7563 err = nl80211_parse_chandef(rdev, info, &chandef);
7567 if (netif_carrier_ok(dev))
7570 if (wdev->cac_started)
7573 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
7581 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
7584 if (!rdev->ops->start_radar_detection)
7587 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7588 if (WARN_ON(!cac_time_ms))
7589 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7591 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
7593 wdev->chandef = chandef;
7594 wdev->cac_started = true;
7595 wdev->cac_start_time = jiffies;
7596 wdev->cac_time_ms = cac_time_ms;
7601 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7604 struct net_device *dev = info->user_ptr[1];
7605 struct wireless_dev *wdev = dev->ieee80211_ptr;
7606 struct cfg80211_csa_settings params;
7607 /* csa_attrs is defined static to avoid waste of stack size - this
7608 * function is called under RTNL lock, so this should not be a problem.
7610 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
7612 bool need_new_beacon = false;
7613 bool need_handle_dfs_flag = true;
7617 if (!rdev->ops->channel_switch ||
7618 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7621 switch (dev->ieee80211_ptr->iftype) {
7622 case NL80211_IFTYPE_AP:
7623 case NL80211_IFTYPE_P2P_GO:
7624 need_new_beacon = true;
7625 /* For all modes except AP the handle_dfs flag needs to be
7626 * supplied to tell the kernel that userspace will handle radar
7627 * events when they happen. Otherwise a switch to a channel
7628 * requiring DFS will be rejected.
7630 need_handle_dfs_flag = false;
7632 /* useless if AP is not running */
7633 if (!wdev->beacon_interval)
7636 case NL80211_IFTYPE_ADHOC:
7637 if (!wdev->ssid_len)
7640 case NL80211_IFTYPE_MESH_POINT:
7641 if (!wdev->mesh_id_len)
7648 memset(¶ms, 0, sizeof(params));
7650 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7651 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7654 /* only important for AP, IBSS and mesh create IEs internally */
7655 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
7658 /* Even though the attribute is u32, the specification says
7659 * u8, so let's make sure we don't overflow.
7661 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7665 params.count = cs_count;
7667 if (!need_new_beacon)
7670 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
7674 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7675 info->attrs[NL80211_ATTR_CSA_IES],
7676 nl80211_policy, info->extack);
7680 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
7684 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7687 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7688 if (!len || (len % sizeof(u16)))
7691 params.n_counter_offsets_beacon = len / sizeof(u16);
7692 if (rdev->wiphy.max_num_csa_counters &&
7693 (params.n_counter_offsets_beacon >
7694 rdev->wiphy.max_num_csa_counters))
7697 params.counter_offsets_beacon =
7698 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7700 /* sanity checks - counters should fit and be the same */
7701 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7702 u16 offset = params.counter_offsets_beacon[i];
7704 if (offset >= params.beacon_csa.tail_len)
7707 if (params.beacon_csa.tail[offset] != params.count)
7711 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
7712 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7713 if (!len || (len % sizeof(u16)))
7716 params.n_counter_offsets_presp = len / sizeof(u16);
7717 if (rdev->wiphy.max_num_csa_counters &&
7718 (params.n_counter_offsets_presp >
7719 rdev->wiphy.max_num_csa_counters))
7722 params.counter_offsets_presp =
7723 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7725 /* sanity checks - counters should fit and be the same */
7726 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7727 u16 offset = params.counter_offsets_presp[i];
7729 if (offset >= params.beacon_csa.probe_resp_len)
7732 if (params.beacon_csa.probe_resp[offset] !=
7739 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
7743 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
7747 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7754 params.radar_required = true;
7755 if (need_handle_dfs_flag &&
7756 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
7761 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7762 params.block_tx = true;
7765 err = rdev_channel_switch(rdev, dev, ¶ms);
7771 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7773 struct cfg80211_registered_device *rdev,
7774 struct wireless_dev *wdev,
7775 struct cfg80211_internal_bss *intbss)
7777 struct cfg80211_bss *res = &intbss->pub;
7778 const struct cfg80211_bss_ies *ies;
7782 ASSERT_WDEV_LOCK(wdev);
7784 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
7785 NL80211_CMD_NEW_SCAN_RESULTS);
7789 genl_dump_check_consistent(cb, hdr);
7791 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7792 goto nla_put_failure;
7794 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7795 goto nla_put_failure;
7796 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7798 goto nla_put_failure;
7800 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7802 goto nla_put_failure;
7803 if ((!is_zero_ether_addr(res->bssid) &&
7804 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
7805 goto nla_put_failure;
7808 /* indicate whether we have probe response data or not */
7809 if (rcu_access_pointer(res->proberesp_ies) &&
7810 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7811 goto fail_unlock_rcu;
7813 /* this pointer prefers to be pointed to probe response data
7814 * but is always valid
7816 ies = rcu_dereference(res->ies);
7818 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7820 goto fail_unlock_rcu;
7821 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7822 ies->len, ies->data))
7823 goto fail_unlock_rcu;
7826 /* and this pointer is always (unless driver didn't know) beacon data */
7827 ies = rcu_dereference(res->beacon_ies);
7828 if (ies && ies->from_beacon) {
7829 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7831 goto fail_unlock_rcu;
7832 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7833 ies->len, ies->data))
7834 goto fail_unlock_rcu;
7838 if (res->beacon_interval &&
7839 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7840 goto nla_put_failure;
7841 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7842 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
7843 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
7844 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7845 jiffies_to_msecs(jiffies - intbss->ts)))
7846 goto nla_put_failure;
7848 if (intbss->parent_tsf &&
7849 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7850 intbss->parent_tsf, NL80211_BSS_PAD) ||
7851 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7852 intbss->parent_bssid)))
7853 goto nla_put_failure;
7855 if (intbss->ts_boottime &&
7856 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7857 intbss->ts_boottime, NL80211_BSS_PAD))
7858 goto nla_put_failure;
7860 if (!nl80211_put_signal(msg, intbss->pub.chains,
7861 intbss->pub.chain_signal,
7862 NL80211_BSS_CHAIN_SIGNAL))
7863 goto nla_put_failure;
7865 switch (rdev->wiphy.signal_type) {
7866 case CFG80211_SIGNAL_TYPE_MBM:
7867 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7868 goto nla_put_failure;
7870 case CFG80211_SIGNAL_TYPE_UNSPEC:
7871 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7872 goto nla_put_failure;
7878 switch (wdev->iftype) {
7879 case NL80211_IFTYPE_P2P_CLIENT:
7880 case NL80211_IFTYPE_STATION:
7881 if (intbss == wdev->current_bss &&
7882 nla_put_u32(msg, NL80211_BSS_STATUS,
7883 NL80211_BSS_STATUS_ASSOCIATED))
7884 goto nla_put_failure;
7886 case NL80211_IFTYPE_ADHOC:
7887 if (intbss == wdev->current_bss &&
7888 nla_put_u32(msg, NL80211_BSS_STATUS,
7889 NL80211_BSS_STATUS_IBSS_JOINED))
7890 goto nla_put_failure;
7896 nla_nest_end(msg, bss);
7898 genlmsg_end(msg, hdr);
7904 genlmsg_cancel(msg, hdr);
7908 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
7910 struct cfg80211_registered_device *rdev;
7911 struct cfg80211_internal_bss *scan;
7912 struct wireless_dev *wdev;
7913 int start = cb->args[2], idx = 0;
7917 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7924 spin_lock_bh(&rdev->bss_lock);
7925 cfg80211_bss_expire(rdev);
7927 cb->seq = rdev->bss_generation;
7929 list_for_each_entry(scan, &rdev->bss_list, list) {
7932 if (nl80211_send_bss(skb, cb,
7933 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7934 rdev, wdev, scan) < 0) {
7940 spin_unlock_bh(&rdev->bss_lock);
7949 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
7950 int flags, struct net_device *dev,
7951 bool allow_radio_stats,
7952 struct survey_info *survey)
7955 struct nlattr *infoattr;
7957 /* skip radio stats if userspace didn't request them */
7958 if (!survey->channel && !allow_radio_stats)
7961 hdr = nl80211hdr_put(msg, portid, seq, flags,
7962 NL80211_CMD_NEW_SURVEY_RESULTS);
7966 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7967 goto nla_put_failure;
7969 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7971 goto nla_put_failure;
7973 if (survey->channel &&
7974 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
7975 survey->channel->center_freq))
7976 goto nla_put_failure;
7978 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7979 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7980 goto nla_put_failure;
7981 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7982 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7983 goto nla_put_failure;
7984 if ((survey->filled & SURVEY_INFO_TIME) &&
7985 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7986 survey->time, NL80211_SURVEY_INFO_PAD))
7987 goto nla_put_failure;
7988 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
7989 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7990 survey->time_busy, NL80211_SURVEY_INFO_PAD))
7991 goto nla_put_failure;
7992 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
7993 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7994 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
7995 goto nla_put_failure;
7996 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
7997 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7998 survey->time_rx, NL80211_SURVEY_INFO_PAD))
7999 goto nla_put_failure;
8000 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
8001 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
8002 survey->time_tx, NL80211_SURVEY_INFO_PAD))
8003 goto nla_put_failure;
8004 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
8005 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
8006 survey->time_scan, NL80211_SURVEY_INFO_PAD))
8007 goto nla_put_failure;
8009 nla_nest_end(msg, infoattr);
8011 genlmsg_end(msg, hdr);
8015 genlmsg_cancel(msg, hdr);
8019 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
8021 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8022 struct survey_info survey;
8023 struct cfg80211_registered_device *rdev;
8024 struct wireless_dev *wdev;
8025 int survey_idx = cb->args[2];
8030 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
8034 /* prepare_wdev_dump parsed the attributes */
8035 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
8037 if (!wdev->netdev) {
8042 if (!rdev->ops->dump_survey) {
8048 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
8054 /* don't send disabled channels, but do send non-channel data */
8055 if (survey.channel &&
8056 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
8061 if (nl80211_send_survey(skb,
8062 NETLINK_CB(cb->skb).portid,
8063 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8064 wdev->netdev, radio_stats, &survey) < 0)
8070 cb->args[2] = survey_idx;
8077 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
8079 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
8080 NL80211_WPA_VERSION_2));
8083 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
8085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8086 struct net_device *dev = info->user_ptr[1];
8087 struct ieee80211_channel *chan;
8088 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
8089 int err, ssid_len, ie_len = 0, auth_data_len = 0;
8090 enum nl80211_auth_type auth_type;
8091 struct key_parse key;
8092 bool local_state_change;
8094 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8097 if (!info->attrs[NL80211_ATTR_MAC])
8100 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
8103 if (!info->attrs[NL80211_ATTR_SSID])
8106 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8109 err = nl80211_parse_key(info, &key);
8114 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
8116 if (!key.p.key || !key.p.key_len)
8118 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
8119 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
8120 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
8121 key.p.key_len != WLAN_KEY_LEN_WEP104))
8134 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
8135 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
8144 if (!rdev->ops->auth)
8147 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8148 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8151 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8152 chan = nl80211_get_valid_chan(&rdev->wiphy,
8153 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8157 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8158 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8160 if (info->attrs[NL80211_ATTR_IE]) {
8161 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8162 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8165 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8166 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
8169 if ((auth_type == NL80211_AUTHTYPE_SAE ||
8170 auth_type == NL80211_AUTHTYPE_FILS_SK ||
8171 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
8172 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
8173 !info->attrs[NL80211_ATTR_AUTH_DATA])
8176 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
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)
8182 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
8183 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
8184 /* need to include at least Auth Transaction and Status Code */
8185 if (auth_data_len < 4)
8189 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8192 * Since we no longer track auth state, ignore
8193 * requests to only change local state.
8195 if (local_state_change)
8198 wdev_lock(dev->ieee80211_ptr);
8199 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
8200 ssid, ssid_len, ie, ie_len,
8201 key.p.key, key.p.key_len, key.idx,
8202 auth_data, auth_data_len);
8203 wdev_unlock(dev->ieee80211_ptr);
8207 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
8208 struct genl_info *info,
8209 struct cfg80211_crypto_settings *settings,
8212 memset(settings, 0, sizeof(*settings));
8214 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8216 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8219 proto = nla_get_u16(
8220 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8221 settings->control_port_ethertype = cpu_to_be16(proto);
8222 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8225 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8226 settings->control_port_no_encrypt = true;
8228 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8230 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8234 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8235 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8236 settings->n_ciphers_pairwise = len / sizeof(u32);
8238 if (len % sizeof(u32))
8241 if (settings->n_ciphers_pairwise > cipher_limit)
8244 memcpy(settings->ciphers_pairwise, data, len);
8246 for (i = 0; i < settings->n_ciphers_pairwise; i++)
8247 if (!cfg80211_supported_cipher_suite(
8249 settings->ciphers_pairwise[i]))
8253 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8254 settings->cipher_group =
8255 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
8256 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8257 settings->cipher_group))
8261 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8262 settings->wpa_versions =
8263 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8264 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8268 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8272 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8273 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8274 settings->n_akm_suites = len / sizeof(u32);
8276 if (len % sizeof(u32))
8279 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8282 memcpy(settings->akm_suites, data, len);
8285 if (info->attrs[NL80211_ATTR_PMK]) {
8286 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
8288 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8289 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
8291 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
8297 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8300 struct net_device *dev = info->user_ptr[1];
8301 struct ieee80211_channel *chan;
8302 struct cfg80211_assoc_request req = {};
8303 const u8 *bssid, *ssid;
8304 int err, ssid_len = 0;
8306 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8309 if (!info->attrs[NL80211_ATTR_MAC] ||
8310 !info->attrs[NL80211_ATTR_SSID] ||
8311 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
8314 if (!rdev->ops->assoc)
8317 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8318 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8321 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8323 chan = nl80211_get_valid_chan(&rdev->wiphy,
8324 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8328 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8329 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8331 if (info->attrs[NL80211_ATTR_IE]) {
8332 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8333 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8336 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8337 enum nl80211_mfp mfp =
8338 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8339 if (mfp == NL80211_MFP_REQUIRED)
8341 else if (mfp != NL80211_MFP_NO)
8345 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8346 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8348 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8349 req.flags |= ASSOC_REQ_DISABLE_HT;
8351 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8352 memcpy(&req.ht_capa_mask,
8353 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8354 sizeof(req.ht_capa_mask));
8356 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8357 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8359 memcpy(&req.ht_capa,
8360 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8361 sizeof(req.ht_capa));
8364 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8365 req.flags |= ASSOC_REQ_DISABLE_VHT;
8367 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8368 memcpy(&req.vht_capa_mask,
8369 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8370 sizeof(req.vht_capa_mask));
8372 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8373 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8375 memcpy(&req.vht_capa,
8376 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8377 sizeof(req.vht_capa));
8380 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8381 if (!((rdev->wiphy.features &
8382 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8383 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8384 !wiphy_ext_feature_isset(&rdev->wiphy,
8385 NL80211_EXT_FEATURE_RRM))
8387 req.flags |= ASSOC_REQ_USE_RRM;
8390 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8391 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8392 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8393 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8396 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8399 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
8401 wdev_lock(dev->ieee80211_ptr);
8403 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8404 ssid, ssid_len, &req);
8406 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8407 dev->ieee80211_ptr->conn_owner_nlportid =
8409 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8413 wdev_unlock(dev->ieee80211_ptr);
8419 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8421 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8422 struct net_device *dev = info->user_ptr[1];
8423 const u8 *ie = NULL, *bssid;
8424 int ie_len = 0, err;
8426 bool local_state_change;
8428 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8431 if (!info->attrs[NL80211_ATTR_MAC])
8434 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8437 if (!rdev->ops->deauth)
8440 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8441 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8444 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8446 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8447 if (reason_code == 0) {
8448 /* Reason Code 0 is reserved */
8452 if (info->attrs[NL80211_ATTR_IE]) {
8453 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8454 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8457 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8459 wdev_lock(dev->ieee80211_ptr);
8460 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8461 local_state_change);
8462 wdev_unlock(dev->ieee80211_ptr);
8466 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8469 struct net_device *dev = info->user_ptr[1];
8470 const u8 *ie = NULL, *bssid;
8471 int ie_len = 0, err;
8473 bool local_state_change;
8475 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8478 if (!info->attrs[NL80211_ATTR_MAC])
8481 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8484 if (!rdev->ops->disassoc)
8487 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8488 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8491 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8493 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8494 if (reason_code == 0) {
8495 /* Reason Code 0 is reserved */
8499 if (info->attrs[NL80211_ATTR_IE]) {
8500 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8501 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8504 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8506 wdev_lock(dev->ieee80211_ptr);
8507 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8508 local_state_change);
8509 wdev_unlock(dev->ieee80211_ptr);
8514 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
8515 int mcast_rate[NUM_NL80211_BANDS],
8518 struct wiphy *wiphy = &rdev->wiphy;
8522 for (band = 0; band < NUM_NL80211_BANDS; band++) {
8523 struct ieee80211_supported_band *sband;
8525 sband = wiphy->bands[band];
8529 for (i = 0; i < sband->n_bitrates; i++) {
8530 if (sband->bitrates[i].bitrate == rateval) {
8531 mcast_rate[band] = i + 1;
8541 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8543 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8544 struct net_device *dev = info->user_ptr[1];
8545 struct cfg80211_ibss_params ibss;
8546 struct wiphy *wiphy;
8547 struct cfg80211_cached_keys *connkeys = NULL;
8550 memset(&ibss, 0, sizeof(ibss));
8552 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8555 if (!info->attrs[NL80211_ATTR_SSID] ||
8556 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8559 ibss.beacon_interval = 100;
8561 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8562 ibss.beacon_interval =
8563 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8565 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8566 ibss.beacon_interval);
8570 if (!rdev->ops->join_ibss)
8573 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8576 wiphy = &rdev->wiphy;
8578 if (info->attrs[NL80211_ATTR_MAC]) {
8579 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8581 if (!is_valid_ether_addr(ibss.bssid))
8584 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8585 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8587 if (info->attrs[NL80211_ATTR_IE]) {
8588 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8589 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8592 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8596 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8597 NL80211_IFTYPE_ADHOC))
8600 switch (ibss.chandef.width) {
8601 case NL80211_CHAN_WIDTH_5:
8602 case NL80211_CHAN_WIDTH_10:
8603 case NL80211_CHAN_WIDTH_20_NOHT:
8605 case NL80211_CHAN_WIDTH_20:
8606 case NL80211_CHAN_WIDTH_40:
8607 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8610 case NL80211_CHAN_WIDTH_80:
8611 case NL80211_CHAN_WIDTH_80P80:
8612 case NL80211_CHAN_WIDTH_160:
8613 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8615 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8616 NL80211_EXT_FEATURE_VHT_IBSS))
8623 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
8624 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8626 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8628 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8630 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8631 struct ieee80211_supported_band *sband =
8632 wiphy->bands[ibss.chandef.chan->band];
8634 err = ieee80211_get_ratemask(sband, rates, n_rates,
8640 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8641 memcpy(&ibss.ht_capa_mask,
8642 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8643 sizeof(ibss.ht_capa_mask));
8645 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8646 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8648 memcpy(&ibss.ht_capa,
8649 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8650 sizeof(ibss.ht_capa));
8653 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8654 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8655 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8658 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8661 connkeys = nl80211_parse_connkeys(rdev, info, &no_ht);
8662 if (IS_ERR(connkeys))
8663 return PTR_ERR(connkeys);
8665 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8673 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8675 ibss.userspace_handles_dfs =
8676 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8678 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
8684 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8687 struct net_device *dev = info->user_ptr[1];
8689 if (!rdev->ops->leave_ibss)
8692 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8695 return cfg80211_leave_ibss(rdev, dev, false);
8698 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8701 struct net_device *dev = info->user_ptr[1];
8702 int mcast_rate[NUM_NL80211_BANDS];
8706 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
8707 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8708 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
8711 if (!rdev->ops->set_mcast_rate)
8714 memset(mcast_rate, 0, sizeof(mcast_rate));
8716 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8719 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8720 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8723 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
8728 static struct sk_buff *
8729 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
8730 struct wireless_dev *wdev, int approxlen,
8731 u32 portid, u32 seq, enum nl80211_commands cmd,
8732 enum nl80211_attrs attr,
8733 const struct nl80211_vendor_cmd_info *info,
8736 struct sk_buff *skb;
8738 struct nlattr *data;
8740 skb = nlmsg_new(approxlen + 100, gfp);
8744 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8750 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8751 goto nla_put_failure;
8754 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8756 goto nla_put_failure;
8757 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8759 goto nla_put_failure;
8763 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8764 wdev_id(wdev), NL80211_ATTR_PAD))
8765 goto nla_put_failure;
8767 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8768 wdev->netdev->ifindex))
8769 goto nla_put_failure;
8772 data = nla_nest_start(skb, attr);
8774 goto nla_put_failure;
8776 ((void **)skb->cb)[0] = rdev;
8777 ((void **)skb->cb)[1] = hdr;
8778 ((void **)skb->cb)[2] = data;
8787 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
8788 struct wireless_dev *wdev,
8789 enum nl80211_commands cmd,
8790 enum nl80211_attrs attr,
8791 int vendor_event_idx,
8792 int approxlen, gfp_t gfp)
8794 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
8795 const struct nl80211_vendor_cmd_info *info;
8798 case NL80211_CMD_TESTMODE:
8799 if (WARN_ON(vendor_event_idx != -1))
8803 case NL80211_CMD_VENDOR:
8804 if (WARN_ON(vendor_event_idx < 0 ||
8805 vendor_event_idx >= wiphy->n_vendor_events))
8807 info = &wiphy->vendor_events[vendor_event_idx];
8814 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
8815 cmd, attr, info, gfp);
8817 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8819 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8821 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8822 void *hdr = ((void **)skb->cb)[1];
8823 struct nlattr *data = ((void **)skb->cb)[2];
8824 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8826 /* clear CB data for netlink core to own from now on */
8827 memset(skb->cb, 0, sizeof(skb->cb));
8829 nla_nest_end(skb, data);
8830 genlmsg_end(skb, hdr);
8832 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8833 mcgrp = NL80211_MCGRP_VENDOR;
8835 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8838 EXPORT_SYMBOL(__cfg80211_send_event_skb);
8840 #ifdef CONFIG_NL80211_TESTMODE
8841 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8844 struct wireless_dev *wdev =
8845 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8848 if (!rdev->ops->testmode_cmd)
8852 err = PTR_ERR(wdev);
8856 } else if (wdev->wiphy != &rdev->wiphy) {
8860 if (!info->attrs[NL80211_ATTR_TESTDATA])
8863 rdev->cur_cmd_info = info;
8864 err = rdev_testmode_cmd(rdev, wdev,
8865 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8866 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
8867 rdev->cur_cmd_info = NULL;
8872 static int nl80211_testmode_dump(struct sk_buff *skb,
8873 struct netlink_callback *cb)
8875 struct cfg80211_registered_device *rdev;
8885 * 0 is a valid index, but not valid for args[0],
8886 * so we need to offset by 1.
8888 phy_idx = cb->args[0] - 1;
8890 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8896 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8898 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8899 attrbuf, nl80211_fam.maxattr,
8900 nl80211_policy, NULL);
8904 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
8906 err = PTR_ERR(rdev);
8909 phy_idx = rdev->wiphy_idx;
8911 if (attrbuf[NL80211_ATTR_TESTDATA])
8912 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
8916 data = nla_data((void *)cb->args[1]);
8917 data_len = nla_len((void *)cb->args[1]);
8920 if (!rdev->ops->testmode_dump) {
8926 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
8927 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8928 NL80211_CMD_TESTMODE);
8929 struct nlattr *tmdata;
8934 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
8935 genlmsg_cancel(skb, hdr);
8939 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8941 genlmsg_cancel(skb, hdr);
8944 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
8945 nla_nest_end(skb, tmdata);
8947 if (err == -ENOBUFS || err == -ENOENT) {
8948 genlmsg_cancel(skb, hdr);
8951 genlmsg_cancel(skb, hdr);
8955 genlmsg_end(skb, hdr);
8960 cb->args[0] = phy_idx + 1;
8967 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8969 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8970 struct net_device *dev = info->user_ptr[1];
8971 struct cfg80211_connect_params connect;
8972 struct wiphy *wiphy;
8973 struct cfg80211_cached_keys *connkeys = NULL;
8976 memset(&connect, 0, sizeof(connect));
8978 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8981 if (!info->attrs[NL80211_ATTR_SSID] ||
8982 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8985 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8987 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8988 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8989 NL80211_CMD_CONNECT))
8992 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8994 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8996 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
8997 !wiphy_ext_feature_isset(&rdev->wiphy,
8998 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
9000 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
9002 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
9003 NL80211_MAX_NR_CIPHER_SUITES);
9007 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9008 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9011 wiphy = &rdev->wiphy;
9013 connect.bg_scan_period = -1;
9014 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
9015 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
9016 connect.bg_scan_period =
9017 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
9020 if (info->attrs[NL80211_ATTR_MAC])
9021 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9022 else if (info->attrs[NL80211_ATTR_MAC_HINT])
9023 connect.bssid_hint =
9024 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
9025 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9026 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9028 if (info->attrs[NL80211_ATTR_IE]) {
9029 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9030 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9033 if (info->attrs[NL80211_ATTR_USE_MFP]) {
9034 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
9035 if (connect.mfp == NL80211_MFP_OPTIONAL &&
9036 !wiphy_ext_feature_isset(&rdev->wiphy,
9037 NL80211_EXT_FEATURE_MFP_OPTIONAL))
9040 if (connect.mfp != NL80211_MFP_REQUIRED &&
9041 connect.mfp != NL80211_MFP_NO &&
9042 connect.mfp != NL80211_MFP_OPTIONAL)
9045 connect.mfp = NL80211_MFP_NO;
9048 if (info->attrs[NL80211_ATTR_PREV_BSSID])
9049 connect.prev_bssid =
9050 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
9052 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9053 connect.channel = nl80211_get_valid_chan(
9054 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
9055 if (!connect.channel)
9057 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
9058 connect.channel_hint = nl80211_get_valid_chan(
9059 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
9060 if (!connect.channel_hint)
9064 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
9065 connkeys = nl80211_parse_connkeys(rdev, info, NULL);
9066 if (IS_ERR(connkeys))
9067 return PTR_ERR(connkeys);
9070 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
9071 connect.flags |= ASSOC_REQ_DISABLE_HT;
9073 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
9074 memcpy(&connect.ht_capa_mask,
9075 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
9076 sizeof(connect.ht_capa_mask));
9078 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
9079 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
9083 memcpy(&connect.ht_capa,
9084 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
9085 sizeof(connect.ht_capa));
9088 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
9089 connect.flags |= ASSOC_REQ_DISABLE_VHT;
9091 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
9092 memcpy(&connect.vht_capa_mask,
9093 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
9094 sizeof(connect.vht_capa_mask));
9096 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
9097 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
9101 memcpy(&connect.vht_capa,
9102 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
9103 sizeof(connect.vht_capa));
9106 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
9107 if (!((rdev->wiphy.features &
9108 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
9109 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
9110 !wiphy_ext_feature_isset(&rdev->wiphy,
9111 NL80211_EXT_FEATURE_RRM)) {
9115 connect.flags |= ASSOC_REQ_USE_RRM;
9118 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
9119 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
9124 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
9125 /* bss selection makes no sense if bssid is set */
9126 if (connect.bssid) {
9131 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
9132 wiphy, &connect.bss_select);
9139 if (wiphy_ext_feature_isset(&rdev->wiphy,
9140 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
9141 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9142 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9143 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9144 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9145 connect.fils_erp_username =
9146 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9147 connect.fils_erp_username_len =
9148 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9149 connect.fils_erp_realm =
9150 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9151 connect.fils_erp_realm_len =
9152 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9153 connect.fils_erp_next_seq_num =
9155 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9156 connect.fils_erp_rrk =
9157 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9158 connect.fils_erp_rrk_len =
9159 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9160 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9161 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9162 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9163 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9168 if (nla_get_flag(info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])) {
9169 if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9170 GENL_SET_ERR_MSG(info,
9171 "external auth requires connection ownership");
9174 connect.flags |= CONNECT_REQ_EXTERNAL_AUTH_SUPPORT;
9177 wdev_lock(dev->ieee80211_ptr);
9179 err = cfg80211_connect(rdev, dev, &connect, connkeys,
9180 connect.prev_bssid);
9184 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9185 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9187 memcpy(dev->ieee80211_ptr->disconnect_bssid,
9188 connect.bssid, ETH_ALEN);
9190 memset(dev->ieee80211_ptr->disconnect_bssid,
9194 wdev_unlock(dev->ieee80211_ptr);
9199 static int nl80211_update_connect_params(struct sk_buff *skb,
9200 struct genl_info *info)
9202 struct cfg80211_connect_params connect = {};
9203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9204 struct net_device *dev = info->user_ptr[1];
9205 struct wireless_dev *wdev = dev->ieee80211_ptr;
9209 if (!rdev->ops->update_connect_params)
9212 if (info->attrs[NL80211_ATTR_IE]) {
9213 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9215 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9216 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9217 changed |= UPDATE_ASSOC_IES;
9220 wdev_lock(dev->ieee80211_ptr);
9221 if (!wdev->current_bss)
9224 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
9225 wdev_unlock(dev->ieee80211_ptr);
9230 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
9232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9233 struct net_device *dev = info->user_ptr[1];
9237 if (!info->attrs[NL80211_ATTR_REASON_CODE])
9238 reason = WLAN_REASON_DEAUTH_LEAVING;
9240 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
9245 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9246 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9249 wdev_lock(dev->ieee80211_ptr);
9250 ret = cfg80211_disconnect(rdev, dev, reason, true);
9251 wdev_unlock(dev->ieee80211_ptr);
9255 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
9257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9261 if (info->attrs[NL80211_ATTR_PID]) {
9262 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
9264 net = get_net_ns_by_pid(pid);
9265 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
9266 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
9268 net = get_net_ns_by_fd(fd);
9274 return PTR_ERR(net);
9278 /* check if anything to do */
9279 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9280 err = cfg80211_switch_netns(rdev, net);
9286 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9289 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9290 struct cfg80211_pmksa *pmksa) = NULL;
9291 struct net_device *dev = info->user_ptr[1];
9292 struct cfg80211_pmksa pmksa;
9294 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9296 if (!info->attrs[NL80211_ATTR_PMKID])
9299 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
9301 if (info->attrs[NL80211_ATTR_MAC]) {
9302 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9303 } else if (info->attrs[NL80211_ATTR_SSID] &&
9304 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
9305 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
9306 info->attrs[NL80211_ATTR_PMK])) {
9307 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9308 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9310 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
9314 if (info->attrs[NL80211_ATTR_PMK]) {
9315 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
9316 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
9319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9320 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9323 switch (info->genlhdr->cmd) {
9324 case NL80211_CMD_SET_PMKSA:
9325 rdev_ops = rdev->ops->set_pmksa;
9327 case NL80211_CMD_DEL_PMKSA:
9328 rdev_ops = rdev->ops->del_pmksa;
9338 return rdev_ops(&rdev->wiphy, dev, &pmksa);
9341 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9343 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9344 struct net_device *dev = info->user_ptr[1];
9346 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9347 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9350 if (!rdev->ops->flush_pmksa)
9353 return rdev_flush_pmksa(rdev, dev);
9356 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9359 struct net_device *dev = info->user_ptr[1];
9360 u8 action_code, dialog_token;
9361 u32 peer_capability = 0;
9366 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9367 !rdev->ops->tdls_mgmt)
9370 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9371 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9372 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9373 !info->attrs[NL80211_ATTR_IE] ||
9374 !info->attrs[NL80211_ATTR_MAC])
9377 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9378 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9379 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9380 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
9381 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
9382 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9384 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
9386 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
9387 dialog_token, status_code, peer_capability,
9389 nla_data(info->attrs[NL80211_ATTR_IE]),
9390 nla_len(info->attrs[NL80211_ATTR_IE]));
9393 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9396 struct net_device *dev = info->user_ptr[1];
9397 enum nl80211_tdls_operation operation;
9400 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9401 !rdev->ops->tdls_oper)
9404 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9405 !info->attrs[NL80211_ATTR_MAC])
9408 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9409 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9411 return rdev_tdls_oper(rdev, dev, peer, operation);
9414 static int nl80211_remain_on_channel(struct sk_buff *skb,
9415 struct genl_info *info)
9417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9418 struct wireless_dev *wdev = info->user_ptr[1];
9419 struct cfg80211_chan_def chandef;
9420 const struct cfg80211_chan_def *compat_chandef;
9421 struct sk_buff *msg;
9427 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9428 !info->attrs[NL80211_ATTR_DURATION])
9431 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9433 if (!rdev->ops->remain_on_channel ||
9434 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9438 * We should be on that channel for at least a minimum amount of
9439 * time (10ms) but no longer than the driver supports.
9441 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9442 duration > rdev->wiphy.max_remain_on_channel_duration)
9445 err = nl80211_parse_chandef(rdev, info, &chandef);
9450 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9451 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9452 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9454 if (compat_chandef != &chandef) {
9461 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9465 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9466 NL80211_CMD_REMAIN_ON_CHANNEL);
9472 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9478 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9480 goto nla_put_failure;
9482 genlmsg_end(msg, hdr);
9484 return genlmsg_reply(msg, info);
9493 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9494 struct genl_info *info)
9496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9497 struct wireless_dev *wdev = info->user_ptr[1];
9500 if (!info->attrs[NL80211_ATTR_COOKIE])
9503 if (!rdev->ops->cancel_remain_on_channel)
9506 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9508 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9511 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9512 struct genl_info *info)
9514 struct cfg80211_bitrate_mask mask;
9515 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9516 struct net_device *dev = info->user_ptr[1];
9519 if (!rdev->ops->set_bitrate_mask)
9522 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9526 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
9529 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
9531 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9532 struct wireless_dev *wdev = info->user_ptr[1];
9533 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
9535 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9538 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9539 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
9541 switch (wdev->iftype) {
9542 case NL80211_IFTYPE_STATION:
9543 case NL80211_IFTYPE_ADHOC:
9544 case NL80211_IFTYPE_P2P_CLIENT:
9545 case NL80211_IFTYPE_AP:
9546 case NL80211_IFTYPE_AP_VLAN:
9547 case NL80211_IFTYPE_MESH_POINT:
9548 case NL80211_IFTYPE_P2P_GO:
9549 case NL80211_IFTYPE_P2P_DEVICE:
9551 case NL80211_IFTYPE_NAN:
9556 /* not much point in registering if we can't reply */
9557 if (!rdev->ops->mgmt_tx)
9560 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
9561 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9562 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
9565 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
9567 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9568 struct wireless_dev *wdev = info->user_ptr[1];
9569 struct cfg80211_chan_def chandef;
9573 struct sk_buff *msg = NULL;
9574 struct cfg80211_mgmt_tx_params params = {
9575 .dont_wait_for_ack =
9576 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9579 if (!info->attrs[NL80211_ATTR_FRAME])
9582 if (!rdev->ops->mgmt_tx)
9585 switch (wdev->iftype) {
9586 case NL80211_IFTYPE_P2P_DEVICE:
9587 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9589 case NL80211_IFTYPE_STATION:
9590 case NL80211_IFTYPE_ADHOC:
9591 case NL80211_IFTYPE_P2P_CLIENT:
9592 case NL80211_IFTYPE_AP:
9593 case NL80211_IFTYPE_AP_VLAN:
9594 case NL80211_IFTYPE_MESH_POINT:
9595 case NL80211_IFTYPE_P2P_GO:
9597 case NL80211_IFTYPE_NAN:
9602 if (info->attrs[NL80211_ATTR_DURATION]) {
9603 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9605 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9608 * We should wait on the channel for at least a minimum amount
9609 * of time (10ms) but no longer than the driver supports.
9611 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9612 params.wait > rdev->wiphy.max_remain_on_channel_duration)
9616 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
9618 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9621 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
9623 /* get the channel if any has been specified, otherwise pass NULL to
9624 * the driver. The latter will use the current one
9626 chandef.chan = NULL;
9627 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9628 err = nl80211_parse_chandef(rdev, info, &chandef);
9633 if (!chandef.chan && params.offchan)
9637 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
9643 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9644 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9646 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9647 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9650 if (len % sizeof(u16))
9653 params.n_csa_offsets = len / sizeof(u16);
9654 params.csa_offsets =
9655 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9657 /* check that all the offsets fit the frame */
9658 for (i = 0; i < params.n_csa_offsets; i++) {
9659 if (params.csa_offsets[i] >= params.len)
9664 if (!params.dont_wait_for_ack) {
9665 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9669 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9677 params.chan = chandef.chan;
9678 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
9683 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9685 goto nla_put_failure;
9687 genlmsg_end(msg, hdr);
9688 return genlmsg_reply(msg, info);
9700 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9703 struct wireless_dev *wdev = info->user_ptr[1];
9706 if (!info->attrs[NL80211_ATTR_COOKIE])
9709 if (!rdev->ops->mgmt_tx_cancel_wait)
9712 switch (wdev->iftype) {
9713 case NL80211_IFTYPE_STATION:
9714 case NL80211_IFTYPE_ADHOC:
9715 case NL80211_IFTYPE_P2P_CLIENT:
9716 case NL80211_IFTYPE_AP:
9717 case NL80211_IFTYPE_AP_VLAN:
9718 case NL80211_IFTYPE_P2P_GO:
9719 case NL80211_IFTYPE_P2P_DEVICE:
9721 case NL80211_IFTYPE_NAN:
9726 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9728 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
9731 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9733 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9734 struct wireless_dev *wdev;
9735 struct net_device *dev = info->user_ptr[1];
9740 if (!info->attrs[NL80211_ATTR_PS_STATE])
9743 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9745 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9748 wdev = dev->ieee80211_ptr;
9750 if (!rdev->ops->set_power_mgmt)
9753 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9755 if (state == wdev->ps)
9758 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
9764 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9767 enum nl80211_ps_state ps_state;
9768 struct wireless_dev *wdev;
9769 struct net_device *dev = info->user_ptr[1];
9770 struct sk_buff *msg;
9774 wdev = dev->ieee80211_ptr;
9776 if (!rdev->ops->set_power_mgmt)
9779 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9783 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9784 NL80211_CMD_GET_POWER_SAVE);
9791 ps_state = NL80211_PS_ENABLED;
9793 ps_state = NL80211_PS_DISABLED;
9795 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9796 goto nla_put_failure;
9798 genlmsg_end(msg, hdr);
9799 return genlmsg_reply(msg, info);
9808 static const struct nla_policy
9809 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
9810 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
9811 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9812 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
9813 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9814 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9815 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
9816 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
9819 static int nl80211_set_cqm_txe(struct genl_info *info,
9820 u32 rate, u32 pkts, u32 intvl)
9822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9823 struct net_device *dev = info->user_ptr[1];
9824 struct wireless_dev *wdev = dev->ieee80211_ptr;
9826 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
9829 if (!rdev->ops->set_cqm_txe_config)
9832 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9833 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9836 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
9839 static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
9840 struct net_device *dev)
9842 struct wireless_dev *wdev = dev->ieee80211_ptr;
9843 s32 last, low, high;
9848 /* RSSI reporting disabled? */
9849 if (!wdev->cqm_config)
9850 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
9853 * Obtain current RSSI value if possible, if not and no RSSI threshold
9854 * event has been received yet, we should receive an event after a
9855 * connection is established and enough beacons received to calculate
9858 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
9859 rdev->ops->get_station) {
9860 struct station_info sinfo = {};
9863 mac_addr = wdev->current_bss->pub.bssid;
9865 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
9869 if (sinfo.filled & BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
9870 wdev->cqm_config->last_rssi_event_value =
9871 (s8) sinfo.rx_beacon_signal_avg;
9874 last = wdev->cqm_config->last_rssi_event_value;
9875 hyst = wdev->cqm_config->rssi_hyst;
9876 n = wdev->cqm_config->n_rssi_thresholds;
9878 for (i = 0; i < n; i++)
9879 if (last < wdev->cqm_config->rssi_thresholds[i])
9883 (wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN;
9885 (wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX;
9887 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
9890 static int nl80211_set_cqm_rssi(struct genl_info *info,
9891 const s32 *thresholds, int n_thresholds,
9894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9895 struct net_device *dev = info->user_ptr[1];
9896 struct wireless_dev *wdev = dev->ieee80211_ptr;
9900 /* Check all values negative and sorted */
9901 for (i = 0; i < n_thresholds; i++) {
9902 if (thresholds[i] > 0 || thresholds[i] <= prev)
9905 prev = thresholds[i];
9908 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9909 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9913 cfg80211_cqm_config_free(wdev);
9916 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
9917 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
9918 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
9920 return rdev_set_cqm_rssi_config(rdev, dev,
9921 thresholds[0], hysteresis);
9924 if (!wiphy_ext_feature_isset(&rdev->wiphy,
9925 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
9928 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
9933 struct cfg80211_cqm_config *cqm_config;
9935 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
9936 n_thresholds * sizeof(s32), GFP_KERNEL);
9942 cqm_config->rssi_hyst = hysteresis;
9943 cqm_config->n_rssi_thresholds = n_thresholds;
9944 memcpy(cqm_config->rssi_thresholds, thresholds,
9945 n_thresholds * sizeof(s32));
9947 wdev->cqm_config = cqm_config;
9950 err = cfg80211_cqm_rssi_update(rdev, dev);
9958 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9960 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9964 cqm = info->attrs[NL80211_ATTR_CQM];
9968 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9969 nl80211_attr_cqm_policy, info->extack);
9973 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9974 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
9975 const s32 *thresholds =
9976 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9977 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9978 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
9983 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
9987 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9988 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9989 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9990 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9991 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9992 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9994 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
10000 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
10002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10003 struct net_device *dev = info->user_ptr[1];
10004 struct ocb_setup setup = {};
10007 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10011 return cfg80211_join_ocb(rdev, dev, &setup);
10014 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
10016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10017 struct net_device *dev = info->user_ptr[1];
10019 return cfg80211_leave_ocb(rdev, dev);
10022 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
10024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10025 struct net_device *dev = info->user_ptr[1];
10026 struct mesh_config cfg;
10027 struct mesh_setup setup;
10030 /* start with default */
10031 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
10032 memcpy(&setup, &default_mesh_setup, sizeof(setup));
10034 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
10035 /* and parse parameters if given */
10036 err = nl80211_parse_mesh_config(info, &cfg, NULL);
10041 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
10042 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
10045 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
10046 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
10048 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
10049 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
10050 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
10053 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
10054 setup.beacon_interval =
10055 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
10057 err = cfg80211_validate_beacon_int(rdev,
10058 NL80211_IFTYPE_MESH_POINT,
10059 setup.beacon_interval);
10064 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
10065 setup.dtim_period =
10066 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
10067 if (setup.dtim_period < 1 || setup.dtim_period > 100)
10071 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
10072 /* parse additional setup parameters if given */
10073 err = nl80211_parse_mesh_setup(info, &setup);
10078 if (setup.user_mpm)
10079 cfg.auto_open_plinks = false;
10081 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
10082 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10086 /* cfg80211_join_mesh() will sort it out */
10087 setup.chandef.chan = NULL;
10090 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
10091 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10093 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10094 struct ieee80211_supported_band *sband;
10096 if (!setup.chandef.chan)
10099 sband = rdev->wiphy.bands[setup.chandef.chan->band];
10101 err = ieee80211_get_ratemask(sband, rates, n_rates,
10102 &setup.basic_rates);
10107 if (info->attrs[NL80211_ATTR_TX_RATES]) {
10108 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
10112 if (!setup.chandef.chan)
10115 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
10116 &setup.beacon_rate);
10121 setup.userspace_handles_dfs =
10122 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
10124 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
10127 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
10129 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10130 struct net_device *dev = info->user_ptr[1];
10132 return cfg80211_leave_mesh(rdev, dev);
10136 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
10137 struct cfg80211_registered_device *rdev)
10139 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
10140 struct nlattr *nl_pats, *nl_pat;
10143 if (!wowlan->n_patterns)
10146 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
10150 for (i = 0; i < wowlan->n_patterns; i++) {
10151 nl_pat = nla_nest_start(msg, i + 1);
10154 pat_len = wowlan->patterns[i].pattern_len;
10155 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
10156 wowlan->patterns[i].mask) ||
10157 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10158 wowlan->patterns[i].pattern) ||
10159 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10160 wowlan->patterns[i].pkt_offset))
10162 nla_nest_end(msg, nl_pat);
10164 nla_nest_end(msg, nl_pats);
10169 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
10170 struct cfg80211_wowlan_tcp *tcp)
10172 struct nlattr *nl_tcp;
10177 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
10181 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
10182 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
10183 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
10184 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
10185 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
10186 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
10187 tcp->payload_len, tcp->payload) ||
10188 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
10189 tcp->data_interval) ||
10190 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
10191 tcp->wake_len, tcp->wake_data) ||
10192 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
10193 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
10196 if (tcp->payload_seq.len &&
10197 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
10198 sizeof(tcp->payload_seq), &tcp->payload_seq))
10201 if (tcp->payload_tok.len &&
10202 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
10203 sizeof(tcp->payload_tok) + tcp->tokens_size,
10204 &tcp->payload_tok))
10207 nla_nest_end(msg, nl_tcp);
10212 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
10213 struct cfg80211_sched_scan_request *req)
10215 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
10221 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
10225 if (req->n_scan_plans == 1 &&
10226 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
10227 req->scan_plans[0].interval * 1000))
10230 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
10233 if (req->relative_rssi_set) {
10234 struct nl80211_bss_select_rssi_adjust rssi_adjust;
10236 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
10237 req->relative_rssi))
10240 rssi_adjust.band = req->rssi_adjust.band;
10241 rssi_adjust.delta = req->rssi_adjust.delta;
10242 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
10243 sizeof(rssi_adjust), &rssi_adjust))
10247 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10251 for (i = 0; i < req->n_channels; i++) {
10252 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10256 nla_nest_end(msg, freqs);
10258 if (req->n_match_sets) {
10259 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
10263 for (i = 0; i < req->n_match_sets; i++) {
10264 match = nla_nest_start(msg, i);
10268 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
10269 req->match_sets[i].ssid.ssid_len,
10270 req->match_sets[i].ssid.ssid))
10272 nla_nest_end(msg, match);
10274 nla_nest_end(msg, matches);
10277 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
10281 for (i = 0; i < req->n_scan_plans; i++) {
10282 scan_plan = nla_nest_start(msg, i + 1);
10287 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10288 req->scan_plans[i].interval) ||
10289 (req->scan_plans[i].iterations &&
10290 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10291 req->scan_plans[i].iterations)))
10293 nla_nest_end(msg, scan_plan);
10295 nla_nest_end(msg, scan_plans);
10297 nla_nest_end(msg, nd);
10302 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10304 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10305 struct sk_buff *msg;
10307 u32 size = NLMSG_DEFAULT_SIZE;
10309 if (!rdev->wiphy.wowlan)
10310 return -EOPNOTSUPP;
10312 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
10313 /* adjust size to have room for all the data */
10314 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10315 rdev->wiphy.wowlan_config->tcp->payload_len +
10316 rdev->wiphy.wowlan_config->tcp->wake_len +
10317 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
10320 msg = nlmsg_new(size, GFP_KERNEL);
10324 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10325 NL80211_CMD_GET_WOWLAN);
10327 goto nla_put_failure;
10329 if (rdev->wiphy.wowlan_config) {
10330 struct nlattr *nl_wowlan;
10332 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10334 goto nla_put_failure;
10336 if ((rdev->wiphy.wowlan_config->any &&
10337 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
10338 (rdev->wiphy.wowlan_config->disconnect &&
10339 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
10340 (rdev->wiphy.wowlan_config->magic_pkt &&
10341 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
10342 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
10343 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
10344 (rdev->wiphy.wowlan_config->eap_identity_req &&
10345 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
10346 (rdev->wiphy.wowlan_config->four_way_handshake &&
10347 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
10348 (rdev->wiphy.wowlan_config->rfkill_release &&
10349 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10350 goto nla_put_failure;
10352 if (nl80211_send_wowlan_patterns(msg, rdev))
10353 goto nla_put_failure;
10355 if (nl80211_send_wowlan_tcp(msg,
10356 rdev->wiphy.wowlan_config->tcp))
10357 goto nla_put_failure;
10359 if (nl80211_send_wowlan_nd(
10361 rdev->wiphy.wowlan_config->nd_config))
10362 goto nla_put_failure;
10364 nla_nest_end(msg, nl_wowlan);
10367 genlmsg_end(msg, hdr);
10368 return genlmsg_reply(msg, info);
10375 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10376 struct nlattr *attr,
10377 struct cfg80211_wowlan *trig)
10379 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10380 struct cfg80211_wowlan_tcp *cfg;
10381 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10382 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10384 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10387 if (!rdev->wiphy.wowlan->tcp)
10390 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
10391 nl80211_wowlan_tcp_policy, NULL);
10395 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10396 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10397 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10398 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10399 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10400 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10401 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10402 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10405 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
10406 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
10409 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
10410 rdev->wiphy.wowlan->tcp->data_interval_max ||
10411 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
10414 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
10415 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
10418 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10419 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10422 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10423 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10425 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10426 tokens_size = tokln - sizeof(*tok);
10428 if (!tok->len || tokens_size % tok->len)
10430 if (!rdev->wiphy.wowlan->tcp->tok)
10432 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
10434 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
10436 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
10438 if (tok->offset + tok->len > data_size)
10442 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10443 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
10444 if (!rdev->wiphy.wowlan->tcp->seq)
10446 if (seq->len == 0 || seq->len > 4)
10448 if (seq->len + seq->offset > data_size)
10452 size = sizeof(*cfg);
10454 size += wake_size + wake_mask_size;
10455 size += tokens_size;
10457 cfg = kzalloc(size, GFP_KERNEL);
10460 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10461 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
10462 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10464 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10465 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10469 /* allocate a socket and port for it and use it */
10470 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10471 IPPROTO_TCP, &cfg->sock, 1);
10476 if (inet_csk_get_port(cfg->sock->sk, port)) {
10477 sock_release(cfg->sock);
10479 return -EADDRINUSE;
10481 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10487 cfg->src_port = port;
10490 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10491 cfg->payload_len = data_size;
10492 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10493 memcpy((void *)cfg->payload,
10494 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10497 cfg->payload_seq = *seq;
10498 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10499 cfg->wake_len = wake_size;
10500 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10501 memcpy((void *)cfg->wake_data,
10502 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10504 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10505 data_size + wake_size;
10506 memcpy((void *)cfg->wake_mask,
10507 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10510 cfg->tokens_size = tokens_size;
10511 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10519 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10520 const struct wiphy_wowlan_support *wowlan,
10521 struct nlattr *attr,
10522 struct cfg80211_wowlan *trig)
10524 struct nlattr **tb;
10527 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10531 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10536 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10541 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10542 wowlan->max_nd_match_sets);
10543 err = PTR_ERR_OR_ZERO(trig->nd_config);
10545 trig->nd_config = NULL;
10552 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10555 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
10556 struct cfg80211_wowlan new_triggers = {};
10557 struct cfg80211_wowlan *ntrig;
10558 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
10560 bool prev_enabled = rdev->wiphy.wowlan_config;
10561 bool regular = false;
10564 return -EOPNOTSUPP;
10566 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10567 cfg80211_rdev_free_wowlan(rdev);
10568 rdev->wiphy.wowlan_config = NULL;
10572 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10573 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
10574 nl80211_wowlan_policy, info->extack);
10578 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10579 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10581 new_triggers.any = true;
10584 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10585 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10587 new_triggers.disconnect = true;
10591 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10592 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10594 new_triggers.magic_pkt = true;
10598 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10601 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10602 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10604 new_triggers.gtk_rekey_failure = true;
10608 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10609 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10611 new_triggers.eap_identity_req = true;
10615 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10616 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10618 new_triggers.four_way_handshake = true;
10622 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10623 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10625 new_triggers.rfkill_release = true;
10629 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10630 struct nlattr *pat;
10631 int n_patterns = 0;
10632 int rem, pat_len, mask_len, pkt_offset;
10633 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10637 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10640 if (n_patterns > wowlan->n_patterns)
10643 new_triggers.patterns = kcalloc(n_patterns,
10644 sizeof(new_triggers.patterns[0]),
10646 if (!new_triggers.patterns)
10649 new_triggers.n_patterns = n_patterns;
10652 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10656 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10657 nl80211_packet_pattern_policy,
10660 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10661 !pat_tb[NL80211_PKTPAT_PATTERN])
10663 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10664 mask_len = DIV_ROUND_UP(pat_len, 8);
10665 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10667 if (pat_len > wowlan->pattern_max_len ||
10668 pat_len < wowlan->pattern_min_len)
10671 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10674 pkt_offset = nla_get_u32(
10675 pat_tb[NL80211_PKTPAT_OFFSET]);
10676 if (pkt_offset > wowlan->max_pkt_offset)
10678 new_triggers.patterns[i].pkt_offset = pkt_offset;
10680 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10685 new_triggers.patterns[i].mask = mask_pat;
10686 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10688 mask_pat += mask_len;
10689 new_triggers.patterns[i].pattern = mask_pat;
10690 new_triggers.patterns[i].pattern_len = pat_len;
10692 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10698 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
10700 err = nl80211_parse_wowlan_tcp(
10701 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10707 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
10709 err = nl80211_parse_wowlan_nd(
10710 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10716 /* The 'any' trigger means the device continues operating more or less
10717 * as in its normal operation mode and wakes up the host on most of the
10718 * normal interrupts (like packet RX, ...)
10719 * It therefore makes little sense to combine with the more constrained
10720 * wakeup trigger modes.
10722 if (new_triggers.any && regular) {
10727 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10732 cfg80211_rdev_free_wowlan(rdev);
10733 rdev->wiphy.wowlan_config = ntrig;
10736 if (rdev->ops->set_wakeup &&
10737 prev_enabled != !!rdev->wiphy.wowlan_config)
10738 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
10742 for (i = 0; i < new_triggers.n_patterns; i++)
10743 kfree(new_triggers.patterns[i].mask);
10744 kfree(new_triggers.patterns);
10745 if (new_triggers.tcp && new_triggers.tcp->sock)
10746 sock_release(new_triggers.tcp->sock);
10747 kfree(new_triggers.tcp);
10748 kfree(new_triggers.nd_config);
10753 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10754 struct cfg80211_registered_device *rdev)
10756 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10758 struct cfg80211_coalesce_rules *rule;
10760 if (!rdev->coalesce->n_rules)
10763 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10767 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10768 nl_rule = nla_nest_start(msg, i + 1);
10772 rule = &rdev->coalesce->rules[i];
10773 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10777 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10781 nl_pats = nla_nest_start(msg,
10782 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10786 for (j = 0; j < rule->n_patterns; j++) {
10787 nl_pat = nla_nest_start(msg, j + 1);
10790 pat_len = rule->patterns[j].pattern_len;
10791 if (nla_put(msg, NL80211_PKTPAT_MASK,
10792 DIV_ROUND_UP(pat_len, 8),
10793 rule->patterns[j].mask) ||
10794 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10795 rule->patterns[j].pattern) ||
10796 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10797 rule->patterns[j].pkt_offset))
10799 nla_nest_end(msg, nl_pat);
10801 nla_nest_end(msg, nl_pats);
10802 nla_nest_end(msg, nl_rule);
10804 nla_nest_end(msg, nl_rules);
10809 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10812 struct sk_buff *msg;
10815 if (!rdev->wiphy.coalesce)
10816 return -EOPNOTSUPP;
10818 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10822 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10823 NL80211_CMD_GET_COALESCE);
10825 goto nla_put_failure;
10827 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10828 goto nla_put_failure;
10830 genlmsg_end(msg, hdr);
10831 return genlmsg_reply(msg, info);
10838 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10840 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10842 struct cfg80211_coalesce_rules *rule;
10847 for (i = 0; i < coalesce->n_rules; i++) {
10848 rule = &coalesce->rules[i];
10849 for (j = 0; j < rule->n_patterns; j++)
10850 kfree(rule->patterns[j].mask);
10851 kfree(rule->patterns);
10853 kfree(coalesce->rules);
10855 rdev->coalesce = NULL;
10858 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10859 struct nlattr *rule,
10860 struct cfg80211_coalesce_rules *new_rule)
10863 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10864 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10865 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10866 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10868 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
10869 nl80211_coalesce_policy, NULL);
10873 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10875 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10876 if (new_rule->delay > coalesce->max_delay)
10879 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10880 new_rule->condition =
10881 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10882 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10883 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10886 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10889 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10892 if (n_patterns > coalesce->n_patterns)
10895 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10897 if (!new_rule->patterns)
10900 new_rule->n_patterns = n_patterns;
10903 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10907 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10908 nl80211_packet_pattern_policy, NULL);
10909 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10910 !pat_tb[NL80211_PKTPAT_PATTERN])
10912 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10913 mask_len = DIV_ROUND_UP(pat_len, 8);
10914 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10916 if (pat_len > coalesce->pattern_max_len ||
10917 pat_len < coalesce->pattern_min_len)
10920 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10923 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10924 if (pkt_offset > coalesce->max_pkt_offset)
10926 new_rule->patterns[i].pkt_offset = pkt_offset;
10928 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10932 new_rule->patterns[i].mask = mask_pat;
10933 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10936 mask_pat += mask_len;
10937 new_rule->patterns[i].pattern = mask_pat;
10938 new_rule->patterns[i].pattern_len = pat_len;
10939 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10947 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10950 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10951 struct cfg80211_coalesce new_coalesce = {};
10952 struct cfg80211_coalesce *n_coalesce;
10953 int err, rem_rule, n_rules = 0, i, j;
10954 struct nlattr *rule;
10955 struct cfg80211_coalesce_rules *tmp_rule;
10957 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10958 return -EOPNOTSUPP;
10960 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10961 cfg80211_rdev_free_coalesce(rdev);
10962 rdev_set_coalesce(rdev, NULL);
10966 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10969 if (n_rules > coalesce->n_rules)
10972 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10974 if (!new_coalesce.rules)
10977 new_coalesce.n_rules = n_rules;
10980 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10982 err = nl80211_parse_coalesce_rule(rdev, rule,
10983 &new_coalesce.rules[i]);
10990 err = rdev_set_coalesce(rdev, &new_coalesce);
10994 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10999 cfg80211_rdev_free_coalesce(rdev);
11000 rdev->coalesce = n_coalesce;
11004 for (i = 0; i < new_coalesce.n_rules; i++) {
11005 tmp_rule = &new_coalesce.rules[i];
11006 for (j = 0; j < tmp_rule->n_patterns; j++)
11007 kfree(tmp_rule->patterns[j].mask);
11008 kfree(tmp_rule->patterns);
11010 kfree(new_coalesce.rules);
11015 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
11017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11018 struct net_device *dev = info->user_ptr[1];
11019 struct wireless_dev *wdev = dev->ieee80211_ptr;
11020 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
11021 struct cfg80211_gtk_rekey_data rekey_data;
11024 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
11027 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
11028 info->attrs[NL80211_ATTR_REKEY_DATA],
11029 nl80211_rekey_policy, info->extack);
11033 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
11034 !tb[NL80211_REKEY_DATA_KCK])
11036 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
11038 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
11040 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
11043 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
11044 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
11045 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
11048 if (!wdev->current_bss) {
11053 if (!rdev->ops->set_rekey_data) {
11058 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
11064 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
11065 struct genl_info *info)
11067 struct net_device *dev = info->user_ptr[1];
11068 struct wireless_dev *wdev = dev->ieee80211_ptr;
11070 if (wdev->iftype != NL80211_IFTYPE_AP &&
11071 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11074 if (wdev->ap_unexpected_nlportid)
11077 wdev->ap_unexpected_nlportid = info->snd_portid;
11081 static int nl80211_probe_client(struct sk_buff *skb,
11082 struct genl_info *info)
11084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11085 struct net_device *dev = info->user_ptr[1];
11086 struct wireless_dev *wdev = dev->ieee80211_ptr;
11087 struct sk_buff *msg;
11093 if (wdev->iftype != NL80211_IFTYPE_AP &&
11094 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11095 return -EOPNOTSUPP;
11097 if (!info->attrs[NL80211_ATTR_MAC])
11100 if (!rdev->ops->probe_client)
11101 return -EOPNOTSUPP;
11103 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11107 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11108 NL80211_CMD_PROBE_CLIENT);
11114 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11116 err = rdev_probe_client(rdev, dev, addr, &cookie);
11120 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11122 goto nla_put_failure;
11124 genlmsg_end(msg, hdr);
11126 return genlmsg_reply(msg, info);
11135 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
11137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11138 struct cfg80211_beacon_registration *reg, *nreg;
11141 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
11142 return -EOPNOTSUPP;
11144 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
11148 /* First, check if already registered. */
11149 spin_lock_bh(&rdev->beacon_registrations_lock);
11150 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11151 if (reg->nlportid == info->snd_portid) {
11156 /* Add it to the list */
11157 nreg->nlportid = info->snd_portid;
11158 list_add(&nreg->list, &rdev->beacon_registrations);
11160 spin_unlock_bh(&rdev->beacon_registrations_lock);
11164 spin_unlock_bh(&rdev->beacon_registrations_lock);
11169 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
11171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11172 struct wireless_dev *wdev = info->user_ptr[1];
11175 if (!rdev->ops->start_p2p_device)
11176 return -EOPNOTSUPP;
11178 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11179 return -EOPNOTSUPP;
11181 if (wdev_running(wdev))
11184 if (rfkill_blocked(rdev->rfkill))
11187 err = rdev_start_p2p_device(rdev, wdev);
11191 wdev->is_running = true;
11197 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
11199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11200 struct wireless_dev *wdev = info->user_ptr[1];
11202 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11203 return -EOPNOTSUPP;
11205 if (!rdev->ops->stop_p2p_device)
11206 return -EOPNOTSUPP;
11208 cfg80211_stop_p2p_device(rdev, wdev);
11213 static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
11215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11216 struct wireless_dev *wdev = info->user_ptr[1];
11217 struct cfg80211_nan_conf conf = {};
11220 if (wdev->iftype != NL80211_IFTYPE_NAN)
11221 return -EOPNOTSUPP;
11223 if (wdev_running(wdev))
11226 if (rfkill_blocked(rdev->rfkill))
11229 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
11233 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11234 if (!conf.master_pref)
11237 if (info->attrs[NL80211_ATTR_BANDS]) {
11238 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11240 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11241 return -EOPNOTSUPP;
11243 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11246 conf.bands = bands;
11249 err = rdev_start_nan(rdev, wdev, &conf);
11253 wdev->is_running = true;
11259 static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
11261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11262 struct wireless_dev *wdev = info->user_ptr[1];
11264 if (wdev->iftype != NL80211_IFTYPE_NAN)
11265 return -EOPNOTSUPP;
11267 cfg80211_stop_nan(rdev, wdev);
11272 static int validate_nan_filter(struct nlattr *filter_attr)
11274 struct nlattr *attr;
11275 int len = 0, n_entries = 0, rem;
11277 nla_for_each_nested(attr, filter_attr, rem) {
11278 len += nla_len(attr);
11288 static int handle_nan_filter(struct nlattr *attr_filter,
11289 struct cfg80211_nan_func *func,
11292 struct nlattr *attr;
11293 int n_entries, rem, i;
11294 struct cfg80211_nan_func_filter *filter;
11296 n_entries = validate_nan_filter(attr_filter);
11300 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11302 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11307 nla_for_each_nested(attr, attr_filter, rem) {
11308 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
11309 filter[i].len = nla_len(attr);
11313 func->num_tx_filters = n_entries;
11314 func->tx_filters = filter;
11316 func->num_rx_filters = n_entries;
11317 func->rx_filters = filter;
11323 static int nl80211_nan_add_func(struct sk_buff *skb,
11324 struct genl_info *info)
11326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11327 struct wireless_dev *wdev = info->user_ptr[1];
11328 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11329 struct cfg80211_nan_func *func;
11330 struct sk_buff *msg = NULL;
11334 if (wdev->iftype != NL80211_IFTYPE_NAN)
11335 return -EOPNOTSUPP;
11337 if (!wdev_running(wdev))
11340 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11343 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11344 info->attrs[NL80211_ATTR_NAN_FUNC],
11345 nl80211_nan_func_policy, info->extack);
11349 func = kzalloc(sizeof(*func), GFP_KERNEL);
11353 func->cookie = wdev->wiphy->cookie_counter++;
11355 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11356 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11362 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11364 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11369 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11370 sizeof(func->service_id));
11372 func->close_range =
11373 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11375 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11376 func->serv_spec_info_len =
11377 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11378 func->serv_spec_info =
11379 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11380 func->serv_spec_info_len,
11382 if (!func->serv_spec_info) {
11388 if (tb[NL80211_NAN_FUNC_TTL])
11389 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11391 switch (func->type) {
11392 case NL80211_NAN_FUNC_PUBLISH:
11393 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11398 func->publish_type =
11399 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11400 func->publish_bcast =
11401 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11403 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11404 func->publish_bcast) {
11409 case NL80211_NAN_FUNC_SUBSCRIBE:
11410 func->subscribe_active =
11411 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11413 case NL80211_NAN_FUNC_FOLLOW_UP:
11414 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
11415 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] ||
11416 !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) {
11421 func->followup_id =
11422 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11423 func->followup_reqid =
11424 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11425 memcpy(func->followup_dest.addr,
11426 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11427 sizeof(func->followup_dest.addr));
11438 if (tb[NL80211_NAN_FUNC_SRF]) {
11439 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11441 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11442 tb[NL80211_NAN_FUNC_SRF],
11443 nl80211_nan_srf_policy, info->extack);
11447 func->srf_include =
11448 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11450 if (srf_tb[NL80211_NAN_SRF_BF]) {
11451 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11452 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11458 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11460 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11461 func->srf_bf_len, GFP_KERNEL);
11462 if (!func->srf_bf) {
11468 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11470 struct nlattr *attr, *mac_attr =
11471 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11472 int n_entries, rem, i = 0;
11479 n_entries = validate_acl_mac_addrs(mac_attr);
11480 if (n_entries <= 0) {
11485 func->srf_num_macs = n_entries;
11487 kzalloc(sizeof(*func->srf_macs) * n_entries,
11489 if (!func->srf_macs) {
11494 nla_for_each_nested(attr, mac_attr, rem)
11495 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11496 sizeof(*func->srf_macs));
11500 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11501 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11507 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11508 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11514 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11520 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11521 NL80211_CMD_ADD_NAN_FUNCTION);
11522 /* This can't really happen - we just allocated 4KB */
11523 if (WARN_ON(!hdr)) {
11528 err = rdev_add_nan_func(rdev, wdev, func);
11531 cfg80211_free_nan_func(func);
11536 /* propagate the instance id and cookie to userspace */
11537 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11539 goto nla_put_failure;
11541 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11543 goto nla_put_failure;
11545 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11546 func->instance_id))
11547 goto nla_put_failure;
11549 nla_nest_end(msg, func_attr);
11551 genlmsg_end(msg, hdr);
11552 return genlmsg_reply(msg, info);
11559 static int nl80211_nan_del_func(struct sk_buff *skb,
11560 struct genl_info *info)
11562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11563 struct wireless_dev *wdev = info->user_ptr[1];
11566 if (wdev->iftype != NL80211_IFTYPE_NAN)
11567 return -EOPNOTSUPP;
11569 if (!wdev_running(wdev))
11572 if (!info->attrs[NL80211_ATTR_COOKIE])
11575 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11577 rdev_del_nan_func(rdev, wdev, cookie);
11582 static int nl80211_nan_change_config(struct sk_buff *skb,
11583 struct genl_info *info)
11585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11586 struct wireless_dev *wdev = info->user_ptr[1];
11587 struct cfg80211_nan_conf conf = {};
11590 if (wdev->iftype != NL80211_IFTYPE_NAN)
11591 return -EOPNOTSUPP;
11593 if (!wdev_running(wdev))
11596 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11598 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11599 if (conf.master_pref <= 1 || conf.master_pref == 255)
11602 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11605 if (info->attrs[NL80211_ATTR_BANDS]) {
11606 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11608 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11609 return -EOPNOTSUPP;
11611 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11614 conf.bands = bands;
11615 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
11621 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11624 void cfg80211_nan_match(struct wireless_dev *wdev,
11625 struct cfg80211_nan_match_params *match, gfp_t gfp)
11627 struct wiphy *wiphy = wdev->wiphy;
11628 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11629 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11630 struct sk_buff *msg;
11633 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11636 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11640 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11646 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11647 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11648 wdev->netdev->ifindex)) ||
11649 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11651 goto nla_put_failure;
11653 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11654 NL80211_ATTR_PAD) ||
11655 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11656 goto nla_put_failure;
11658 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11660 goto nla_put_failure;
11662 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11663 if (!local_func_attr)
11664 goto nla_put_failure;
11666 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11667 goto nla_put_failure;
11669 nla_nest_end(msg, local_func_attr);
11671 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11672 if (!peer_func_attr)
11673 goto nla_put_failure;
11675 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11676 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11677 goto nla_put_failure;
11679 if (match->info && match->info_len &&
11680 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11682 goto nla_put_failure;
11684 nla_nest_end(msg, peer_func_attr);
11685 nla_nest_end(msg, match_attr);
11686 genlmsg_end(msg, hdr);
11688 if (!wdev->owner_nlportid)
11689 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11690 msg, 0, NL80211_MCGRP_NAN, gfp);
11692 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11693 wdev->owner_nlportid);
11700 EXPORT_SYMBOL(cfg80211_nan_match);
11702 void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11704 enum nl80211_nan_func_term_reason reason,
11705 u64 cookie, gfp_t gfp)
11707 struct wiphy *wiphy = wdev->wiphy;
11708 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11709 struct sk_buff *msg;
11710 struct nlattr *func_attr;
11713 if (WARN_ON(!inst_id))
11716 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11720 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11726 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11727 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11728 wdev->netdev->ifindex)) ||
11729 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11731 goto nla_put_failure;
11733 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11735 goto nla_put_failure;
11737 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11739 goto nla_put_failure;
11741 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11742 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11743 goto nla_put_failure;
11745 nla_nest_end(msg, func_attr);
11746 genlmsg_end(msg, hdr);
11748 if (!wdev->owner_nlportid)
11749 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11750 msg, 0, NL80211_MCGRP_NAN, gfp);
11752 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11753 wdev->owner_nlportid);
11760 EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11762 static int nl80211_get_protocol_features(struct sk_buff *skb,
11763 struct genl_info *info)
11766 struct sk_buff *msg;
11768 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11772 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11773 NL80211_CMD_GET_PROTOCOL_FEATURES);
11775 goto nla_put_failure;
11777 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11778 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11779 goto nla_put_failure;
11781 genlmsg_end(msg, hdr);
11782 return genlmsg_reply(msg, info);
11789 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11792 struct cfg80211_update_ft_ies_params ft_params;
11793 struct net_device *dev = info->user_ptr[1];
11795 if (!rdev->ops->update_ft_ies)
11796 return -EOPNOTSUPP;
11798 if (!info->attrs[NL80211_ATTR_MDID] ||
11799 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11802 memset(&ft_params, 0, sizeof(ft_params));
11803 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11804 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11805 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11807 return rdev_update_ft_ies(rdev, dev, &ft_params);
11810 static int nl80211_crit_protocol_start(struct sk_buff *skb,
11811 struct genl_info *info)
11813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11814 struct wireless_dev *wdev = info->user_ptr[1];
11815 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11819 if (!rdev->ops->crit_proto_start)
11820 return -EOPNOTSUPP;
11822 if (WARN_ON(!rdev->ops->crit_proto_stop))
11825 if (rdev->crit_proto_nlportid)
11828 /* determine protocol if provided */
11829 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11830 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11832 if (proto >= NUM_NL80211_CRIT_PROTO)
11835 /* timeout must be provided */
11836 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11840 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11842 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11845 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11847 rdev->crit_proto_nlportid = info->snd_portid;
11852 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11853 struct genl_info *info)
11855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11856 struct wireless_dev *wdev = info->user_ptr[1];
11858 if (!rdev->ops->crit_proto_stop)
11859 return -EOPNOTSUPP;
11861 if (rdev->crit_proto_nlportid) {
11862 rdev->crit_proto_nlportid = 0;
11863 rdev_crit_proto_stop(rdev, wdev);
11868 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11871 struct wireless_dev *wdev =
11872 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11876 if (!rdev->wiphy.vendor_commands)
11877 return -EOPNOTSUPP;
11879 if (IS_ERR(wdev)) {
11880 err = PTR_ERR(wdev);
11881 if (err != -EINVAL)
11884 } else if (wdev->wiphy != &rdev->wiphy) {
11888 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11889 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11892 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11893 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11894 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11895 const struct wiphy_vendor_command *vcmd;
11899 vcmd = &rdev->wiphy.vendor_commands[i];
11901 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11904 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11905 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11908 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11912 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
11913 if (!wdev_running(wdev))
11918 return -EOPNOTSUPP;
11923 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11924 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11925 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11928 rdev->cur_cmd_info = info;
11929 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11931 rdev->cur_cmd_info = NULL;
11935 return -EOPNOTSUPP;
11938 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11939 struct netlink_callback *cb,
11940 struct cfg80211_registered_device **rdev,
11941 struct wireless_dev **wdev)
11943 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
11949 unsigned int data_len = 0;
11952 /* subtract the 1 again here */
11953 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11954 struct wireless_dev *tmp;
11958 *rdev = wiphy_to_rdev(wiphy);
11962 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
11963 if (tmp->identifier == cb->args[1] - 1) {
11970 /* keep rtnl locked in successful case */
11974 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
11975 nl80211_fam.maxattr, nl80211_policy, NULL);
11979 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
11980 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
11983 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
11987 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
11989 return PTR_ERR(*rdev);
11991 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11992 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
11994 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11995 const struct wiphy_vendor_command *vcmd;
11997 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11999 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
12003 return -EOPNOTSUPP;
12010 return -EOPNOTSUPP;
12012 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
12013 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
12014 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
12017 /* 0 is the first index - add 1 to parse only once */
12018 cb->args[0] = (*rdev)->wiphy_idx + 1;
12019 /* add 1 to know if it was NULL */
12020 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
12021 cb->args[2] = vcmd_idx;
12022 cb->args[3] = (unsigned long)data;
12023 cb->args[4] = data_len;
12025 /* keep rtnl locked in successful case */
12029 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
12030 struct netlink_callback *cb)
12032 struct cfg80211_registered_device *rdev;
12033 struct wireless_dev *wdev;
12034 unsigned int vcmd_idx;
12035 const struct wiphy_vendor_command *vcmd;
12039 struct nlattr *vendor_data;
12042 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
12046 vcmd_idx = cb->args[2];
12047 data = (void *)cb->args[3];
12048 data_len = cb->args[4];
12049 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
12051 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
12052 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
12057 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
12063 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
12064 if (!wdev_running(wdev)) {
12072 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
12073 cb->nlh->nlmsg_seq, NLM_F_MULTI,
12074 NL80211_CMD_VENDOR);
12078 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12079 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
12081 NL80211_ATTR_PAD))) {
12082 genlmsg_cancel(skb, hdr);
12086 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
12087 if (!vendor_data) {
12088 genlmsg_cancel(skb, hdr);
12092 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
12093 (unsigned long *)&cb->args[5]);
12094 nla_nest_end(skb, vendor_data);
12096 if (err == -ENOBUFS || err == -ENOENT) {
12097 genlmsg_cancel(skb, hdr);
12100 genlmsg_cancel(skb, hdr);
12104 genlmsg_end(skb, hdr);
12113 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
12114 enum nl80211_commands cmd,
12115 enum nl80211_attrs attr,
12118 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12120 if (WARN_ON(!rdev->cur_cmd_info))
12123 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
12124 rdev->cur_cmd_info->snd_portid,
12125 rdev->cur_cmd_info->snd_seq,
12126 cmd, attr, NULL, GFP_KERNEL);
12128 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
12130 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
12132 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
12133 void *hdr = ((void **)skb->cb)[1];
12134 struct nlattr *data = ((void **)skb->cb)[2];
12136 /* clear CB data for netlink core to own from now on */
12137 memset(skb->cb, 0, sizeof(skb->cb));
12139 if (WARN_ON(!rdev->cur_cmd_info)) {
12144 nla_nest_end(skb, data);
12145 genlmsg_end(skb, hdr);
12146 return genlmsg_reply(skb, rdev->cur_cmd_info);
12148 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
12150 static int nl80211_set_qos_map(struct sk_buff *skb,
12151 struct genl_info *info)
12153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12154 struct cfg80211_qos_map *qos_map = NULL;
12155 struct net_device *dev = info->user_ptr[1];
12156 u8 *pos, len, num_des, des_len, des;
12159 if (!rdev->ops->set_qos_map)
12160 return -EOPNOTSUPP;
12162 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
12163 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
12164 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
12166 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
12167 len > IEEE80211_QOS_MAP_LEN_MAX)
12170 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
12174 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
12176 des_len = num_des *
12177 sizeof(struct cfg80211_dscp_exception);
12178 memcpy(qos_map->dscp_exception, pos, des_len);
12179 qos_map->num_des = num_des;
12180 for (des = 0; des < num_des; des++) {
12181 if (qos_map->dscp_exception[des].up > 7) {
12188 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
12191 wdev_lock(dev->ieee80211_ptr);
12192 ret = nl80211_key_allowed(dev->ieee80211_ptr);
12194 ret = rdev_set_qos_map(rdev, dev, qos_map);
12195 wdev_unlock(dev->ieee80211_ptr);
12201 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
12203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12204 struct net_device *dev = info->user_ptr[1];
12205 struct wireless_dev *wdev = dev->ieee80211_ptr;
12208 u16 admitted_time = 0;
12211 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
12212 return -EOPNOTSUPP;
12214 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
12215 !info->attrs[NL80211_ATTR_USER_PRIO])
12218 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12219 if (tsid >= IEEE80211_NUM_TIDS)
12222 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
12223 if (up >= IEEE80211_NUM_UPS)
12226 /* WMM uses TIDs 0-7 even for TSPEC */
12227 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
12228 /* TODO: handle 802.11 TSPEC/admission control
12229 * need more attributes for that (e.g. BA session requirement);
12230 * change the WMM adminssion test above to allow both then
12235 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12237 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
12239 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
12240 if (!admitted_time)
12245 switch (wdev->iftype) {
12246 case NL80211_IFTYPE_STATION:
12247 case NL80211_IFTYPE_P2P_CLIENT:
12248 if (wdev->current_bss)
12257 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
12264 static int nl80211_del_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;
12273 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
12276 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12277 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12280 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12286 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12287 struct genl_info *info)
12289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12290 struct net_device *dev = info->user_ptr[1];
12291 struct wireless_dev *wdev = dev->ieee80211_ptr;
12292 struct cfg80211_chan_def chandef = {};
12297 if (!rdev->ops->tdls_channel_switch ||
12298 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12299 return -EOPNOTSUPP;
12301 switch (dev->ieee80211_ptr->iftype) {
12302 case NL80211_IFTYPE_STATION:
12303 case NL80211_IFTYPE_P2P_CLIENT:
12306 return -EOPNOTSUPP;
12309 if (!info->attrs[NL80211_ATTR_MAC] ||
12310 !info->attrs[NL80211_ATTR_OPER_CLASS])
12313 err = nl80211_parse_chandef(rdev, info, &chandef);
12318 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12319 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12320 * specification is not defined for them.
12322 if (chandef.chan->band == NL80211_BAND_2GHZ &&
12323 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12324 chandef.width != NL80211_CHAN_WIDTH_20)
12327 /* we will be active on the TDLS link */
12328 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12332 /* don't allow switching to DFS channels */
12333 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12336 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12337 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12340 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12346 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12347 struct genl_info *info)
12349 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12350 struct net_device *dev = info->user_ptr[1];
12351 struct wireless_dev *wdev = dev->ieee80211_ptr;
12354 if (!rdev->ops->tdls_channel_switch ||
12355 !rdev->ops->tdls_cancel_channel_switch ||
12356 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12357 return -EOPNOTSUPP;
12359 switch (dev->ieee80211_ptr->iftype) {
12360 case NL80211_IFTYPE_STATION:
12361 case NL80211_IFTYPE_P2P_CLIENT:
12364 return -EOPNOTSUPP;
12367 if (!info->attrs[NL80211_ATTR_MAC])
12370 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12373 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12379 static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12380 struct genl_info *info)
12382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12383 struct net_device *dev = info->user_ptr[1];
12384 struct wireless_dev *wdev = dev->ieee80211_ptr;
12385 const struct nlattr *nla;
12388 if (!rdev->ops->set_multicast_to_unicast)
12389 return -EOPNOTSUPP;
12391 if (wdev->iftype != NL80211_IFTYPE_AP &&
12392 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12393 return -EOPNOTSUPP;
12395 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12396 enabled = nla_get_flag(nla);
12398 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12401 static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
12403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12404 struct net_device *dev = info->user_ptr[1];
12405 struct wireless_dev *wdev = dev->ieee80211_ptr;
12406 struct cfg80211_pmk_conf pmk_conf = {};
12409 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12410 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12411 return -EOPNOTSUPP;
12413 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12414 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12415 return -EOPNOTSUPP;
12417 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
12421 if (!wdev->current_bss) {
12426 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12427 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
12432 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
12433 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
12434 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
12435 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
12440 if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
12441 int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12443 if (r0_name_len != WLAN_PMK_NAME_LEN) {
12448 pmk_conf.pmk_r0_name =
12449 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12452 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
12458 static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
12460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12461 struct net_device *dev = info->user_ptr[1];
12462 struct wireless_dev *wdev = dev->ieee80211_ptr;
12466 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12467 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12468 return -EOPNOTSUPP;
12470 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12471 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12472 return -EOPNOTSUPP;
12474 if (!info->attrs[NL80211_ATTR_MAC])
12478 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12479 ret = rdev_del_pmk(rdev, dev, aa);
12485 static int nl80211_external_auth(struct sk_buff *skb, struct genl_info *info)
12487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12488 struct net_device *dev = info->user_ptr[1];
12489 struct cfg80211_external_auth_params params;
12491 if (!rdev->ops->external_auth)
12492 return -EOPNOTSUPP;
12494 if (!info->attrs[NL80211_ATTR_SSID])
12497 if (!info->attrs[NL80211_ATTR_BSSID])
12500 if (!info->attrs[NL80211_ATTR_STATUS_CODE])
12503 memset(¶ms, 0, sizeof(params));
12505 params.ssid.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
12506 if (params.ssid.ssid_len == 0 ||
12507 params.ssid.ssid_len > IEEE80211_MAX_SSID_LEN)
12509 memcpy(params.ssid.ssid, nla_data(info->attrs[NL80211_ATTR_SSID]),
12510 params.ssid.ssid_len);
12512 memcpy(params.bssid, nla_data(info->attrs[NL80211_ATTR_BSSID]),
12515 params.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
12517 return rdev_external_auth(rdev, dev, ¶ms);
12520 #define NL80211_FLAG_NEED_WIPHY 0x01
12521 #define NL80211_FLAG_NEED_NETDEV 0x02
12522 #define NL80211_FLAG_NEED_RTNL 0x04
12523 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
12524 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
12525 NL80211_FLAG_CHECK_NETDEV_UP)
12526 #define NL80211_FLAG_NEED_WDEV 0x10
12527 /* If a netdev is associated, it must be UP, P2P must be started */
12528 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
12529 NL80211_FLAG_CHECK_NETDEV_UP)
12530 #define NL80211_FLAG_CLEAR_SKB 0x20
12532 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
12533 struct genl_info *info)
12535 struct cfg80211_registered_device *rdev;
12536 struct wireless_dev *wdev;
12537 struct net_device *dev;
12538 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
12543 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
12544 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
12545 if (IS_ERR(rdev)) {
12548 return PTR_ERR(rdev);
12550 info->user_ptr[0] = rdev;
12551 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
12552 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12555 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
12557 if (IS_ERR(wdev)) {
12560 return PTR_ERR(wdev);
12563 dev = wdev->netdev;
12564 rdev = wiphy_to_rdev(wdev->wiphy);
12566 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12573 info->user_ptr[1] = dev;
12575 info->user_ptr[1] = wdev;
12578 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12579 !wdev_running(wdev)) {
12588 info->user_ptr[0] = rdev;
12594 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
12595 struct genl_info *info)
12597 if (info->user_ptr[1]) {
12598 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12599 struct wireless_dev *wdev = info->user_ptr[1];
12602 dev_put(wdev->netdev);
12604 dev_put(info->user_ptr[1]);
12608 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12611 /* If needed, clear the netlink message payload from the SKB
12612 * as it might contain key data that shouldn't stick around on
12613 * the heap after the SKB is freed. The netlink message header
12614 * is still needed for further processing, so leave it intact.
12616 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12617 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12619 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12623 static const struct genl_ops nl80211_ops[] = {
12625 .cmd = NL80211_CMD_GET_WIPHY,
12626 .doit = nl80211_get_wiphy,
12627 .dumpit = nl80211_dump_wiphy,
12628 .done = nl80211_dump_wiphy_done,
12629 .policy = nl80211_policy,
12630 /* can be retrieved by unprivileged users */
12631 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12632 NL80211_FLAG_NEED_RTNL,
12635 .cmd = NL80211_CMD_SET_WIPHY,
12636 .doit = nl80211_set_wiphy,
12637 .policy = nl80211_policy,
12638 .flags = GENL_UNS_ADMIN_PERM,
12639 .internal_flags = NL80211_FLAG_NEED_RTNL,
12642 .cmd = NL80211_CMD_GET_INTERFACE,
12643 .doit = nl80211_get_interface,
12644 .dumpit = nl80211_dump_interface,
12645 .policy = nl80211_policy,
12646 /* can be retrieved by unprivileged users */
12647 .internal_flags = NL80211_FLAG_NEED_WDEV |
12648 NL80211_FLAG_NEED_RTNL,
12651 .cmd = NL80211_CMD_SET_INTERFACE,
12652 .doit = nl80211_set_interface,
12653 .policy = nl80211_policy,
12654 .flags = GENL_UNS_ADMIN_PERM,
12655 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12656 NL80211_FLAG_NEED_RTNL,
12659 .cmd = NL80211_CMD_NEW_INTERFACE,
12660 .doit = nl80211_new_interface,
12661 .policy = nl80211_policy,
12662 .flags = GENL_UNS_ADMIN_PERM,
12663 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12664 NL80211_FLAG_NEED_RTNL,
12667 .cmd = NL80211_CMD_DEL_INTERFACE,
12668 .doit = nl80211_del_interface,
12669 .policy = nl80211_policy,
12670 .flags = GENL_UNS_ADMIN_PERM,
12671 .internal_flags = NL80211_FLAG_NEED_WDEV |
12672 NL80211_FLAG_NEED_RTNL,
12675 .cmd = NL80211_CMD_GET_KEY,
12676 .doit = nl80211_get_key,
12677 .policy = nl80211_policy,
12678 .flags = GENL_UNS_ADMIN_PERM,
12679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12680 NL80211_FLAG_NEED_RTNL,
12683 .cmd = NL80211_CMD_SET_KEY,
12684 .doit = nl80211_set_key,
12685 .policy = nl80211_policy,
12686 .flags = GENL_UNS_ADMIN_PERM,
12687 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12688 NL80211_FLAG_NEED_RTNL |
12689 NL80211_FLAG_CLEAR_SKB,
12692 .cmd = NL80211_CMD_NEW_KEY,
12693 .doit = nl80211_new_key,
12694 .policy = nl80211_policy,
12695 .flags = GENL_UNS_ADMIN_PERM,
12696 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12697 NL80211_FLAG_NEED_RTNL |
12698 NL80211_FLAG_CLEAR_SKB,
12701 .cmd = NL80211_CMD_DEL_KEY,
12702 .doit = nl80211_del_key,
12703 .policy = nl80211_policy,
12704 .flags = GENL_UNS_ADMIN_PERM,
12705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12706 NL80211_FLAG_NEED_RTNL,
12709 .cmd = NL80211_CMD_SET_BEACON,
12710 .policy = nl80211_policy,
12711 .flags = GENL_UNS_ADMIN_PERM,
12712 .doit = nl80211_set_beacon,
12713 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12714 NL80211_FLAG_NEED_RTNL,
12717 .cmd = NL80211_CMD_START_AP,
12718 .policy = nl80211_policy,
12719 .flags = GENL_UNS_ADMIN_PERM,
12720 .doit = nl80211_start_ap,
12721 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12722 NL80211_FLAG_NEED_RTNL,
12725 .cmd = NL80211_CMD_STOP_AP,
12726 .policy = nl80211_policy,
12727 .flags = GENL_UNS_ADMIN_PERM,
12728 .doit = nl80211_stop_ap,
12729 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12730 NL80211_FLAG_NEED_RTNL,
12733 .cmd = NL80211_CMD_GET_STATION,
12734 .doit = nl80211_get_station,
12735 .dumpit = nl80211_dump_station,
12736 .policy = nl80211_policy,
12737 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12738 NL80211_FLAG_NEED_RTNL,
12741 .cmd = NL80211_CMD_SET_STATION,
12742 .doit = nl80211_set_station,
12743 .policy = nl80211_policy,
12744 .flags = GENL_UNS_ADMIN_PERM,
12745 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12746 NL80211_FLAG_NEED_RTNL,
12749 .cmd = NL80211_CMD_NEW_STATION,
12750 .doit = nl80211_new_station,
12751 .policy = nl80211_policy,
12752 .flags = GENL_UNS_ADMIN_PERM,
12753 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12754 NL80211_FLAG_NEED_RTNL,
12757 .cmd = NL80211_CMD_DEL_STATION,
12758 .doit = nl80211_del_station,
12759 .policy = nl80211_policy,
12760 .flags = GENL_UNS_ADMIN_PERM,
12761 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12762 NL80211_FLAG_NEED_RTNL,
12765 .cmd = NL80211_CMD_GET_MPATH,
12766 .doit = nl80211_get_mpath,
12767 .dumpit = nl80211_dump_mpath,
12768 .policy = nl80211_policy,
12769 .flags = GENL_UNS_ADMIN_PERM,
12770 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12771 NL80211_FLAG_NEED_RTNL,
12774 .cmd = NL80211_CMD_GET_MPP,
12775 .doit = nl80211_get_mpp,
12776 .dumpit = nl80211_dump_mpp,
12777 .policy = nl80211_policy,
12778 .flags = GENL_UNS_ADMIN_PERM,
12779 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12780 NL80211_FLAG_NEED_RTNL,
12783 .cmd = NL80211_CMD_SET_MPATH,
12784 .doit = nl80211_set_mpath,
12785 .policy = nl80211_policy,
12786 .flags = GENL_UNS_ADMIN_PERM,
12787 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12788 NL80211_FLAG_NEED_RTNL,
12791 .cmd = NL80211_CMD_NEW_MPATH,
12792 .doit = nl80211_new_mpath,
12793 .policy = nl80211_policy,
12794 .flags = GENL_UNS_ADMIN_PERM,
12795 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12796 NL80211_FLAG_NEED_RTNL,
12799 .cmd = NL80211_CMD_DEL_MPATH,
12800 .doit = nl80211_del_mpath,
12801 .policy = nl80211_policy,
12802 .flags = GENL_UNS_ADMIN_PERM,
12803 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12804 NL80211_FLAG_NEED_RTNL,
12807 .cmd = NL80211_CMD_SET_BSS,
12808 .doit = nl80211_set_bss,
12809 .policy = nl80211_policy,
12810 .flags = GENL_UNS_ADMIN_PERM,
12811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12812 NL80211_FLAG_NEED_RTNL,
12815 .cmd = NL80211_CMD_GET_REG,
12816 .doit = nl80211_get_reg_do,
12817 .dumpit = nl80211_get_reg_dump,
12818 .policy = nl80211_policy,
12819 .internal_flags = NL80211_FLAG_NEED_RTNL,
12820 /* can be retrieved by unprivileged users */
12822 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
12824 .cmd = NL80211_CMD_SET_REG,
12825 .doit = nl80211_set_reg,
12826 .policy = nl80211_policy,
12827 .flags = GENL_ADMIN_PERM,
12828 .internal_flags = NL80211_FLAG_NEED_RTNL,
12832 .cmd = NL80211_CMD_REQ_SET_REG,
12833 .doit = nl80211_req_set_reg,
12834 .policy = nl80211_policy,
12835 .flags = GENL_ADMIN_PERM,
12838 .cmd = NL80211_CMD_RELOAD_REGDB,
12839 .doit = nl80211_reload_regdb,
12840 .policy = nl80211_policy,
12841 .flags = GENL_ADMIN_PERM,
12844 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12845 .doit = nl80211_get_mesh_config,
12846 .policy = nl80211_policy,
12847 /* can be retrieved by unprivileged users */
12848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12849 NL80211_FLAG_NEED_RTNL,
12852 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12853 .doit = nl80211_update_mesh_config,
12854 .policy = nl80211_policy,
12855 .flags = GENL_UNS_ADMIN_PERM,
12856 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12857 NL80211_FLAG_NEED_RTNL,
12860 .cmd = NL80211_CMD_TRIGGER_SCAN,
12861 .doit = nl80211_trigger_scan,
12862 .policy = nl80211_policy,
12863 .flags = GENL_UNS_ADMIN_PERM,
12864 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12865 NL80211_FLAG_NEED_RTNL,
12868 .cmd = NL80211_CMD_ABORT_SCAN,
12869 .doit = nl80211_abort_scan,
12870 .policy = nl80211_policy,
12871 .flags = GENL_UNS_ADMIN_PERM,
12872 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12873 NL80211_FLAG_NEED_RTNL,
12876 .cmd = NL80211_CMD_GET_SCAN,
12877 .policy = nl80211_policy,
12878 .dumpit = nl80211_dump_scan,
12881 .cmd = NL80211_CMD_START_SCHED_SCAN,
12882 .doit = nl80211_start_sched_scan,
12883 .policy = nl80211_policy,
12884 .flags = GENL_UNS_ADMIN_PERM,
12885 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12886 NL80211_FLAG_NEED_RTNL,
12889 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12890 .doit = nl80211_stop_sched_scan,
12891 .policy = nl80211_policy,
12892 .flags = GENL_UNS_ADMIN_PERM,
12893 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12894 NL80211_FLAG_NEED_RTNL,
12897 .cmd = NL80211_CMD_AUTHENTICATE,
12898 .doit = nl80211_authenticate,
12899 .policy = nl80211_policy,
12900 .flags = GENL_UNS_ADMIN_PERM,
12901 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12902 NL80211_FLAG_NEED_RTNL |
12903 NL80211_FLAG_CLEAR_SKB,
12906 .cmd = NL80211_CMD_ASSOCIATE,
12907 .doit = nl80211_associate,
12908 .policy = nl80211_policy,
12909 .flags = GENL_UNS_ADMIN_PERM,
12910 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12911 NL80211_FLAG_NEED_RTNL,
12914 .cmd = NL80211_CMD_DEAUTHENTICATE,
12915 .doit = nl80211_deauthenticate,
12916 .policy = nl80211_policy,
12917 .flags = GENL_UNS_ADMIN_PERM,
12918 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12919 NL80211_FLAG_NEED_RTNL,
12922 .cmd = NL80211_CMD_DISASSOCIATE,
12923 .doit = nl80211_disassociate,
12924 .policy = nl80211_policy,
12925 .flags = GENL_UNS_ADMIN_PERM,
12926 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12927 NL80211_FLAG_NEED_RTNL,
12930 .cmd = NL80211_CMD_JOIN_IBSS,
12931 .doit = nl80211_join_ibss,
12932 .policy = nl80211_policy,
12933 .flags = GENL_UNS_ADMIN_PERM,
12934 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12935 NL80211_FLAG_NEED_RTNL,
12938 .cmd = NL80211_CMD_LEAVE_IBSS,
12939 .doit = nl80211_leave_ibss,
12940 .policy = nl80211_policy,
12941 .flags = GENL_UNS_ADMIN_PERM,
12942 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12943 NL80211_FLAG_NEED_RTNL,
12945 #ifdef CONFIG_NL80211_TESTMODE
12947 .cmd = NL80211_CMD_TESTMODE,
12948 .doit = nl80211_testmode_do,
12949 .dumpit = nl80211_testmode_dump,
12950 .policy = nl80211_policy,
12951 .flags = GENL_UNS_ADMIN_PERM,
12952 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12953 NL80211_FLAG_NEED_RTNL,
12957 .cmd = NL80211_CMD_CONNECT,
12958 .doit = nl80211_connect,
12959 .policy = nl80211_policy,
12960 .flags = GENL_UNS_ADMIN_PERM,
12961 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12962 NL80211_FLAG_NEED_RTNL,
12965 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12966 .doit = nl80211_update_connect_params,
12967 .policy = nl80211_policy,
12968 .flags = GENL_ADMIN_PERM,
12969 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12970 NL80211_FLAG_NEED_RTNL,
12973 .cmd = NL80211_CMD_DISCONNECT,
12974 .doit = nl80211_disconnect,
12975 .policy = nl80211_policy,
12976 .flags = GENL_UNS_ADMIN_PERM,
12977 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12978 NL80211_FLAG_NEED_RTNL,
12981 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12982 .doit = nl80211_wiphy_netns,
12983 .policy = nl80211_policy,
12984 .flags = GENL_UNS_ADMIN_PERM,
12985 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12986 NL80211_FLAG_NEED_RTNL,
12989 .cmd = NL80211_CMD_GET_SURVEY,
12990 .policy = nl80211_policy,
12991 .dumpit = nl80211_dump_survey,
12994 .cmd = NL80211_CMD_SET_PMKSA,
12995 .doit = nl80211_setdel_pmksa,
12996 .policy = nl80211_policy,
12997 .flags = GENL_UNS_ADMIN_PERM,
12998 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12999 NL80211_FLAG_NEED_RTNL,
13002 .cmd = NL80211_CMD_DEL_PMKSA,
13003 .doit = nl80211_setdel_pmksa,
13004 .policy = nl80211_policy,
13005 .flags = GENL_UNS_ADMIN_PERM,
13006 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13007 NL80211_FLAG_NEED_RTNL,
13010 .cmd = NL80211_CMD_FLUSH_PMKSA,
13011 .doit = nl80211_flush_pmksa,
13012 .policy = nl80211_policy,
13013 .flags = GENL_UNS_ADMIN_PERM,
13014 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13015 NL80211_FLAG_NEED_RTNL,
13018 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
13019 .doit = nl80211_remain_on_channel,
13020 .policy = nl80211_policy,
13021 .flags = GENL_UNS_ADMIN_PERM,
13022 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13023 NL80211_FLAG_NEED_RTNL,
13026 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
13027 .doit = nl80211_cancel_remain_on_channel,
13028 .policy = nl80211_policy,
13029 .flags = GENL_UNS_ADMIN_PERM,
13030 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13031 NL80211_FLAG_NEED_RTNL,
13034 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
13035 .doit = nl80211_set_tx_bitrate_mask,
13036 .policy = nl80211_policy,
13037 .flags = GENL_UNS_ADMIN_PERM,
13038 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13039 NL80211_FLAG_NEED_RTNL,
13042 .cmd = NL80211_CMD_REGISTER_FRAME,
13043 .doit = nl80211_register_mgmt,
13044 .policy = nl80211_policy,
13045 .flags = GENL_UNS_ADMIN_PERM,
13046 .internal_flags = NL80211_FLAG_NEED_WDEV |
13047 NL80211_FLAG_NEED_RTNL,
13050 .cmd = NL80211_CMD_FRAME,
13051 .doit = nl80211_tx_mgmt,
13052 .policy = nl80211_policy,
13053 .flags = GENL_UNS_ADMIN_PERM,
13054 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13055 NL80211_FLAG_NEED_RTNL,
13058 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
13059 .doit = nl80211_tx_mgmt_cancel_wait,
13060 .policy = nl80211_policy,
13061 .flags = GENL_UNS_ADMIN_PERM,
13062 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13063 NL80211_FLAG_NEED_RTNL,
13066 .cmd = NL80211_CMD_SET_POWER_SAVE,
13067 .doit = nl80211_set_power_save,
13068 .policy = nl80211_policy,
13069 .flags = GENL_UNS_ADMIN_PERM,
13070 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13071 NL80211_FLAG_NEED_RTNL,
13074 .cmd = NL80211_CMD_GET_POWER_SAVE,
13075 .doit = nl80211_get_power_save,
13076 .policy = nl80211_policy,
13077 /* can be retrieved by unprivileged users */
13078 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13079 NL80211_FLAG_NEED_RTNL,
13082 .cmd = NL80211_CMD_SET_CQM,
13083 .doit = nl80211_set_cqm,
13084 .policy = nl80211_policy,
13085 .flags = GENL_UNS_ADMIN_PERM,
13086 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13087 NL80211_FLAG_NEED_RTNL,
13090 .cmd = NL80211_CMD_SET_CHANNEL,
13091 .doit = nl80211_set_channel,
13092 .policy = nl80211_policy,
13093 .flags = GENL_UNS_ADMIN_PERM,
13094 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13095 NL80211_FLAG_NEED_RTNL,
13098 .cmd = NL80211_CMD_SET_WDS_PEER,
13099 .doit = nl80211_set_wds_peer,
13100 .policy = nl80211_policy,
13101 .flags = GENL_UNS_ADMIN_PERM,
13102 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13103 NL80211_FLAG_NEED_RTNL,
13106 .cmd = NL80211_CMD_JOIN_MESH,
13107 .doit = nl80211_join_mesh,
13108 .policy = nl80211_policy,
13109 .flags = GENL_UNS_ADMIN_PERM,
13110 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13111 NL80211_FLAG_NEED_RTNL,
13114 .cmd = NL80211_CMD_LEAVE_MESH,
13115 .doit = nl80211_leave_mesh,
13116 .policy = nl80211_policy,
13117 .flags = GENL_UNS_ADMIN_PERM,
13118 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13119 NL80211_FLAG_NEED_RTNL,
13122 .cmd = NL80211_CMD_JOIN_OCB,
13123 .doit = nl80211_join_ocb,
13124 .policy = nl80211_policy,
13125 .flags = GENL_UNS_ADMIN_PERM,
13126 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13127 NL80211_FLAG_NEED_RTNL,
13130 .cmd = NL80211_CMD_LEAVE_OCB,
13131 .doit = nl80211_leave_ocb,
13132 .policy = nl80211_policy,
13133 .flags = GENL_UNS_ADMIN_PERM,
13134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13135 NL80211_FLAG_NEED_RTNL,
13139 .cmd = NL80211_CMD_GET_WOWLAN,
13140 .doit = nl80211_get_wowlan,
13141 .policy = nl80211_policy,
13142 /* can be retrieved by unprivileged users */
13143 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13144 NL80211_FLAG_NEED_RTNL,
13147 .cmd = NL80211_CMD_SET_WOWLAN,
13148 .doit = nl80211_set_wowlan,
13149 .policy = nl80211_policy,
13150 .flags = GENL_UNS_ADMIN_PERM,
13151 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13152 NL80211_FLAG_NEED_RTNL,
13156 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
13157 .doit = nl80211_set_rekey_data,
13158 .policy = nl80211_policy,
13159 .flags = GENL_UNS_ADMIN_PERM,
13160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13161 NL80211_FLAG_NEED_RTNL |
13162 NL80211_FLAG_CLEAR_SKB,
13165 .cmd = NL80211_CMD_TDLS_MGMT,
13166 .doit = nl80211_tdls_mgmt,
13167 .policy = nl80211_policy,
13168 .flags = GENL_UNS_ADMIN_PERM,
13169 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13170 NL80211_FLAG_NEED_RTNL,
13173 .cmd = NL80211_CMD_TDLS_OPER,
13174 .doit = nl80211_tdls_oper,
13175 .policy = nl80211_policy,
13176 .flags = GENL_UNS_ADMIN_PERM,
13177 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13178 NL80211_FLAG_NEED_RTNL,
13181 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
13182 .doit = nl80211_register_unexpected_frame,
13183 .policy = nl80211_policy,
13184 .flags = GENL_UNS_ADMIN_PERM,
13185 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13186 NL80211_FLAG_NEED_RTNL,
13189 .cmd = NL80211_CMD_PROBE_CLIENT,
13190 .doit = nl80211_probe_client,
13191 .policy = nl80211_policy,
13192 .flags = GENL_UNS_ADMIN_PERM,
13193 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13194 NL80211_FLAG_NEED_RTNL,
13197 .cmd = NL80211_CMD_REGISTER_BEACONS,
13198 .doit = nl80211_register_beacons,
13199 .policy = nl80211_policy,
13200 .flags = GENL_UNS_ADMIN_PERM,
13201 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13202 NL80211_FLAG_NEED_RTNL,
13205 .cmd = NL80211_CMD_SET_NOACK_MAP,
13206 .doit = nl80211_set_noack_map,
13207 .policy = nl80211_policy,
13208 .flags = GENL_UNS_ADMIN_PERM,
13209 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13210 NL80211_FLAG_NEED_RTNL,
13213 .cmd = NL80211_CMD_START_P2P_DEVICE,
13214 .doit = nl80211_start_p2p_device,
13215 .policy = nl80211_policy,
13216 .flags = GENL_UNS_ADMIN_PERM,
13217 .internal_flags = NL80211_FLAG_NEED_WDEV |
13218 NL80211_FLAG_NEED_RTNL,
13221 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
13222 .doit = nl80211_stop_p2p_device,
13223 .policy = nl80211_policy,
13224 .flags = GENL_UNS_ADMIN_PERM,
13225 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13226 NL80211_FLAG_NEED_RTNL,
13229 .cmd = NL80211_CMD_START_NAN,
13230 .doit = nl80211_start_nan,
13231 .policy = nl80211_policy,
13232 .flags = GENL_ADMIN_PERM,
13233 .internal_flags = NL80211_FLAG_NEED_WDEV |
13234 NL80211_FLAG_NEED_RTNL,
13237 .cmd = NL80211_CMD_STOP_NAN,
13238 .doit = nl80211_stop_nan,
13239 .policy = nl80211_policy,
13240 .flags = GENL_ADMIN_PERM,
13241 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13242 NL80211_FLAG_NEED_RTNL,
13245 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
13246 .doit = nl80211_nan_add_func,
13247 .policy = nl80211_policy,
13248 .flags = GENL_ADMIN_PERM,
13249 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13250 NL80211_FLAG_NEED_RTNL,
13253 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
13254 .doit = nl80211_nan_del_func,
13255 .policy = nl80211_policy,
13256 .flags = GENL_ADMIN_PERM,
13257 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13258 NL80211_FLAG_NEED_RTNL,
13261 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
13262 .doit = nl80211_nan_change_config,
13263 .policy = nl80211_policy,
13264 .flags = GENL_ADMIN_PERM,
13265 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13266 NL80211_FLAG_NEED_RTNL,
13269 .cmd = NL80211_CMD_SET_MCAST_RATE,
13270 .doit = nl80211_set_mcast_rate,
13271 .policy = nl80211_policy,
13272 .flags = GENL_UNS_ADMIN_PERM,
13273 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13274 NL80211_FLAG_NEED_RTNL,
13277 .cmd = NL80211_CMD_SET_MAC_ACL,
13278 .doit = nl80211_set_mac_acl,
13279 .policy = nl80211_policy,
13280 .flags = GENL_UNS_ADMIN_PERM,
13281 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13282 NL80211_FLAG_NEED_RTNL,
13285 .cmd = NL80211_CMD_RADAR_DETECT,
13286 .doit = nl80211_start_radar_detection,
13287 .policy = nl80211_policy,
13288 .flags = GENL_UNS_ADMIN_PERM,
13289 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13290 NL80211_FLAG_NEED_RTNL,
13293 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
13294 .doit = nl80211_get_protocol_features,
13295 .policy = nl80211_policy,
13298 .cmd = NL80211_CMD_UPDATE_FT_IES,
13299 .doit = nl80211_update_ft_ies,
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_CRIT_PROTOCOL_START,
13307 .doit = nl80211_crit_protocol_start,
13308 .policy = nl80211_policy,
13309 .flags = GENL_UNS_ADMIN_PERM,
13310 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13311 NL80211_FLAG_NEED_RTNL,
13314 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
13315 .doit = nl80211_crit_protocol_stop,
13316 .policy = nl80211_policy,
13317 .flags = GENL_UNS_ADMIN_PERM,
13318 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13319 NL80211_FLAG_NEED_RTNL,
13322 .cmd = NL80211_CMD_GET_COALESCE,
13323 .doit = nl80211_get_coalesce,
13324 .policy = nl80211_policy,
13325 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13326 NL80211_FLAG_NEED_RTNL,
13329 .cmd = NL80211_CMD_SET_COALESCE,
13330 .doit = nl80211_set_coalesce,
13331 .policy = nl80211_policy,
13332 .flags = GENL_UNS_ADMIN_PERM,
13333 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13334 NL80211_FLAG_NEED_RTNL,
13337 .cmd = NL80211_CMD_CHANNEL_SWITCH,
13338 .doit = nl80211_channel_switch,
13339 .policy = nl80211_policy,
13340 .flags = GENL_UNS_ADMIN_PERM,
13341 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13342 NL80211_FLAG_NEED_RTNL,
13345 .cmd = NL80211_CMD_VENDOR,
13346 .doit = nl80211_vendor_cmd,
13347 .dumpit = nl80211_vendor_cmd_dump,
13348 .policy = nl80211_policy,
13349 .flags = GENL_UNS_ADMIN_PERM,
13350 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13351 NL80211_FLAG_NEED_RTNL,
13354 .cmd = NL80211_CMD_SET_QOS_MAP,
13355 .doit = nl80211_set_qos_map,
13356 .policy = nl80211_policy,
13357 .flags = GENL_UNS_ADMIN_PERM,
13358 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13359 NL80211_FLAG_NEED_RTNL,
13362 .cmd = NL80211_CMD_ADD_TX_TS,
13363 .doit = nl80211_add_tx_ts,
13364 .policy = nl80211_policy,
13365 .flags = GENL_UNS_ADMIN_PERM,
13366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13367 NL80211_FLAG_NEED_RTNL,
13370 .cmd = NL80211_CMD_DEL_TX_TS,
13371 .doit = nl80211_del_tx_ts,
13372 .policy = nl80211_policy,
13373 .flags = GENL_UNS_ADMIN_PERM,
13374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13375 NL80211_FLAG_NEED_RTNL,
13378 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
13379 .doit = nl80211_tdls_channel_switch,
13380 .policy = nl80211_policy,
13381 .flags = GENL_UNS_ADMIN_PERM,
13382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13383 NL80211_FLAG_NEED_RTNL,
13386 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
13387 .doit = nl80211_tdls_cancel_channel_switch,
13388 .policy = nl80211_policy,
13389 .flags = GENL_UNS_ADMIN_PERM,
13390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13391 NL80211_FLAG_NEED_RTNL,
13394 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
13395 .doit = nl80211_set_multicast_to_unicast,
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_PMK,
13403 .doit = nl80211_set_pmk,
13404 .policy = nl80211_policy,
13405 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13406 NL80211_FLAG_NEED_RTNL,
13409 .cmd = NL80211_CMD_DEL_PMK,
13410 .doit = nl80211_del_pmk,
13411 .policy = nl80211_policy,
13412 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13413 NL80211_FLAG_NEED_RTNL,
13416 .cmd = NL80211_CMD_EXTERNAL_AUTH,
13417 .doit = nl80211_external_auth,
13418 .policy = nl80211_policy,
13419 .flags = GENL_ADMIN_PERM,
13420 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13421 NL80211_FLAG_NEED_RTNL,
13426 static struct genl_family nl80211_fam __ro_after_init = {
13427 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13428 .hdrsize = 0, /* no private header */
13429 .version = 1, /* no particular meaning now */
13430 .maxattr = NL80211_ATTR_MAX,
13432 .pre_doit = nl80211_pre_doit,
13433 .post_doit = nl80211_post_doit,
13434 .module = THIS_MODULE,
13435 .ops = nl80211_ops,
13436 .n_ops = ARRAY_SIZE(nl80211_ops),
13437 .mcgrps = nl80211_mcgrps,
13438 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13441 /* notification functions */
13443 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13444 enum nl80211_commands cmd)
13446 struct sk_buff *msg;
13447 struct nl80211_dump_wiphy_state state = {};
13449 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13450 cmd != NL80211_CMD_DEL_WIPHY);
13452 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13456 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
13461 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13462 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13465 void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13466 struct wireless_dev *wdev,
13467 enum nl80211_commands cmd)
13469 struct sk_buff *msg;
13471 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13472 cmd != NL80211_CMD_DEL_INTERFACE);
13474 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13478 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13479 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13485 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13488 static int nl80211_add_scan_req(struct sk_buff *msg,
13489 struct cfg80211_registered_device *rdev)
13491 struct cfg80211_scan_request *req = rdev->scan_req;
13492 struct nlattr *nest;
13498 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13500 goto nla_put_failure;
13501 for (i = 0; i < req->n_ssids; i++) {
13502 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13503 goto nla_put_failure;
13505 nla_nest_end(msg, nest);
13507 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13509 goto nla_put_failure;
13510 for (i = 0; i < req->n_channels; i++) {
13511 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
13512 goto nla_put_failure;
13514 nla_nest_end(msg, nest);
13517 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
13518 goto nla_put_failure;
13521 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
13522 goto nla_put_failure;
13524 if (req->info.scan_start_tsf &&
13525 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
13526 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
13527 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
13528 req->info.tsf_bssid)))
13529 goto nla_put_failure;
13536 static int nl80211_prep_scan_msg(struct sk_buff *msg,
13537 struct cfg80211_registered_device *rdev,
13538 struct wireless_dev *wdev,
13539 u32 portid, u32 seq, int flags,
13544 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
13548 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13549 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13550 wdev->netdev->ifindex)) ||
13551 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13553 goto nla_put_failure;
13555 /* ignore errors and send incomplete event anyway */
13556 nl80211_add_scan_req(msg, rdev);
13558 genlmsg_end(msg, hdr);
13562 genlmsg_cancel(msg, hdr);
13567 nl80211_prep_sched_scan_msg(struct sk_buff *msg,
13568 struct cfg80211_sched_scan_request *req, u32 cmd)
13572 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13576 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
13577 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
13578 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
13579 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
13581 goto nla_put_failure;
13583 genlmsg_end(msg, hdr);
13587 genlmsg_cancel(msg, hdr);
13591 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
13592 struct wireless_dev *wdev)
13594 struct sk_buff *msg;
13596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13600 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
13601 NL80211_CMD_TRIGGER_SCAN) < 0) {
13606 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13607 NL80211_MCGRP_SCAN, GFP_KERNEL);
13610 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13611 struct wireless_dev *wdev, bool aborted)
13613 struct sk_buff *msg;
13615 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13619 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
13620 aborted ? NL80211_CMD_SCAN_ABORTED :
13621 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
13629 /* send message created by nl80211_build_scan_msg() */
13630 void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13631 struct sk_buff *msg)
13636 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13637 NL80211_MCGRP_SCAN, GFP_KERNEL);
13640 void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
13642 struct sk_buff *msg;
13644 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13648 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
13653 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
13654 NL80211_MCGRP_SCAN, GFP_KERNEL);
13657 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13658 struct regulatory_request *request)
13660 /* Userspace can always count this one always being set */
13661 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13662 goto nla_put_failure;
13664 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13665 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13666 NL80211_REGDOM_TYPE_WORLD))
13667 goto nla_put_failure;
13668 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13669 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13670 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13671 goto nla_put_failure;
13672 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13673 request->intersect) {
13674 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13675 NL80211_REGDOM_TYPE_INTERSECTION))
13676 goto nla_put_failure;
13678 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13679 NL80211_REGDOM_TYPE_COUNTRY) ||
13680 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13682 goto nla_put_failure;
13685 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13686 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13689 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13690 goto nla_put_failure;
13693 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13694 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13695 goto nla_put_failure;
13705 * This can happen on global regulatory changes or device specific settings
13706 * based on custom regulatory domains.
13708 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13709 struct regulatory_request *request)
13711 struct sk_buff *msg;
13714 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13718 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13724 if (nl80211_reg_change_event_fill(msg, request) == false)
13725 goto nla_put_failure;
13727 genlmsg_end(msg, hdr);
13730 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
13731 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
13740 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13741 struct net_device *netdev,
13742 const u8 *buf, size_t len,
13743 enum nl80211_commands cmd, gfp_t gfp,
13746 struct sk_buff *msg;
13749 msg = nlmsg_new(100 + len, gfp);
13753 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13759 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13760 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13761 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13762 goto nla_put_failure;
13764 if (uapsd_queues >= 0) {
13765 struct nlattr *nla_wmm =
13766 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13768 goto nla_put_failure;
13770 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13772 goto nla_put_failure;
13774 nla_nest_end(msg, nla_wmm);
13777 genlmsg_end(msg, hdr);
13779 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13780 NL80211_MCGRP_MLME, gfp);
13787 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
13788 struct net_device *netdev, const u8 *buf,
13789 size_t len, gfp_t gfp)
13791 nl80211_send_mlme_event(rdev, netdev, buf, len,
13792 NL80211_CMD_AUTHENTICATE, gfp, -1);
13795 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13796 struct net_device *netdev, const u8 *buf,
13797 size_t len, gfp_t gfp, int uapsd_queues)
13799 nl80211_send_mlme_event(rdev, netdev, buf, len,
13800 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
13803 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
13804 struct net_device *netdev, const u8 *buf,
13805 size_t len, gfp_t gfp)
13807 nl80211_send_mlme_event(rdev, netdev, buf, len,
13808 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
13811 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13812 struct net_device *netdev, const u8 *buf,
13813 size_t len, gfp_t gfp)
13815 nl80211_send_mlme_event(rdev, netdev, buf, len,
13816 NL80211_CMD_DISASSOCIATE, gfp, -1);
13819 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13822 struct wireless_dev *wdev = dev->ieee80211_ptr;
13823 struct wiphy *wiphy = wdev->wiphy;
13824 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13825 const struct ieee80211_mgmt *mgmt = (void *)buf;
13828 if (WARN_ON(len < 2))
13831 if (ieee80211_is_deauth(mgmt->frame_control))
13832 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13834 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
13836 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
13837 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
13839 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
13841 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13842 struct net_device *netdev, int cmd,
13843 const u8 *addr, gfp_t gfp)
13845 struct sk_buff *msg;
13848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13852 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13858 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13859 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13860 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13861 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13862 goto nla_put_failure;
13864 genlmsg_end(msg, hdr);
13866 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13867 NL80211_MCGRP_MLME, gfp);
13874 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
13875 struct net_device *netdev, const u8 *addr,
13878 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
13882 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
13883 struct net_device *netdev, const u8 *addr,
13886 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13890 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
13891 struct net_device *netdev,
13892 struct cfg80211_connect_resp_params *cr,
13895 struct sk_buff *msg;
13898 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
13899 cr->fils_kek_len + cr->pmk_len +
13900 (cr->pmkid ? WLAN_PMKID_LEN : 0), gfp);
13904 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13910 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13911 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13913 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
13914 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
13915 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13918 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13919 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
13920 cr->timeout_reason))) ||
13922 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
13924 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
13926 (cr->update_erp_next_seq_num &&
13927 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
13928 cr->fils_erp_next_seq_num)) ||
13929 (cr->status == WLAN_STATUS_SUCCESS &&
13931 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils_kek_len,
13934 nla_put(msg, NL80211_ATTR_PMK, cr->pmk_len, cr->pmk)) ||
13936 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->pmkid)))))
13937 goto nla_put_failure;
13939 genlmsg_end(msg, hdr);
13941 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13942 NL80211_MCGRP_MLME, gfp);
13949 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
13950 struct net_device *netdev,
13951 struct cfg80211_roam_info *info, gfp_t gfp)
13953 struct sk_buff *msg;
13955 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
13957 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len, gfp);
13961 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13967 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13968 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13969 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
13971 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
13974 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
13976 goto nla_put_failure;
13978 genlmsg_end(msg, hdr);
13980 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13981 NL80211_MCGRP_MLME, gfp);
13988 void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
13989 struct net_device *netdev, const u8 *bssid)
13991 struct sk_buff *msg;
13994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13998 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PORT_AUTHORIZED);
14004 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14005 goto nla_put_failure;
14007 genlmsg_end(msg, hdr);
14009 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14010 NL80211_MCGRP_MLME, GFP_KERNEL);
14017 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
14018 struct net_device *netdev, u16 reason,
14019 const u8 *ie, size_t ie_len, bool from_ap)
14021 struct sk_buff *msg;
14024 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
14028 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
14034 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14035 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14037 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
14039 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
14040 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
14041 goto nla_put_failure;
14043 genlmsg_end(msg, hdr);
14045 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14046 NL80211_MCGRP_MLME, GFP_KERNEL);
14053 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
14054 struct net_device *netdev, const u8 *bssid,
14057 struct sk_buff *msg;
14060 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14064 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
14070 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14071 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14072 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14073 goto nla_put_failure;
14075 genlmsg_end(msg, hdr);
14077 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14078 NL80211_MCGRP_MLME, gfp);
14085 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
14086 const u8* ie, u8 ie_len, gfp_t gfp)
14088 struct wireless_dev *wdev = dev->ieee80211_ptr;
14089 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14090 struct sk_buff *msg;
14093 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
14096 trace_cfg80211_notify_new_peer_candidate(dev, addr);
14098 msg = nlmsg_new(100 + ie_len, gfp);
14102 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
14108 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14109 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14110 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
14112 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
14113 goto nla_put_failure;
14115 genlmsg_end(msg, hdr);
14117 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14118 NL80211_MCGRP_MLME, gfp);
14124 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
14126 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
14127 struct net_device *netdev, const u8 *addr,
14128 enum nl80211_key_type key_type, int key_id,
14129 const u8 *tsc, gfp_t gfp)
14131 struct sk_buff *msg;
14134 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14138 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
14144 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14145 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14146 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
14147 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
14149 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
14150 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
14151 goto nla_put_failure;
14153 genlmsg_end(msg, hdr);
14155 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14156 NL80211_MCGRP_MLME, gfp);
14163 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
14164 struct ieee80211_channel *channel_before,
14165 struct ieee80211_channel *channel_after)
14167 struct sk_buff *msg;
14169 struct nlattr *nl_freq;
14171 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
14175 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
14182 * Since we are applying the beacon hint to a wiphy we know its
14183 * wiphy_idx is valid
14185 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
14186 goto nla_put_failure;
14189 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
14191 goto nla_put_failure;
14192 if (nl80211_msg_put_channel(msg, channel_before, false))
14193 goto nla_put_failure;
14194 nla_nest_end(msg, nl_freq);
14197 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
14199 goto nla_put_failure;
14200 if (nl80211_msg_put_channel(msg, channel_after, false))
14201 goto nla_put_failure;
14202 nla_nest_end(msg, nl_freq);
14204 genlmsg_end(msg, hdr);
14207 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
14208 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
14217 static void nl80211_send_remain_on_chan_event(
14218 int cmd, struct cfg80211_registered_device *rdev,
14219 struct wireless_dev *wdev, u64 cookie,
14220 struct ieee80211_channel *chan,
14221 unsigned int duration, gfp_t gfp)
14223 struct sk_buff *msg;
14226 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14230 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14236 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14237 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14238 wdev->netdev->ifindex)) ||
14239 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14240 NL80211_ATTR_PAD) ||
14241 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
14242 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
14243 NL80211_CHAN_NO_HT) ||
14244 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14246 goto nla_put_failure;
14248 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
14249 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
14250 goto nla_put_failure;
14252 genlmsg_end(msg, hdr);
14254 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14255 NL80211_MCGRP_MLME, gfp);
14262 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
14263 struct ieee80211_channel *chan,
14264 unsigned int duration, gfp_t gfp)
14266 struct wiphy *wiphy = wdev->wiphy;
14267 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14269 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
14270 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
14271 rdev, wdev, cookie, chan,
14274 EXPORT_SYMBOL(cfg80211_ready_on_channel);
14276 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
14277 struct ieee80211_channel *chan,
14280 struct wiphy *wiphy = wdev->wiphy;
14281 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14283 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
14284 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
14285 rdev, wdev, cookie, chan, 0, gfp);
14287 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
14289 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
14290 struct station_info *sinfo, gfp_t gfp)
14292 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14293 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14294 struct sk_buff *msg;
14296 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
14298 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14302 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
14303 rdev, dev, mac_addr, sinfo) < 0) {
14308 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14309 NL80211_MCGRP_MLME, gfp);
14311 EXPORT_SYMBOL(cfg80211_new_sta);
14313 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
14314 struct station_info *sinfo, gfp_t gfp)
14316 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14317 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14318 struct sk_buff *msg;
14319 struct station_info empty_sinfo = {};
14322 sinfo = &empty_sinfo;
14324 trace_cfg80211_del_sta(dev, mac_addr);
14326 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14330 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
14331 rdev, dev, mac_addr, sinfo) < 0) {
14336 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14337 NL80211_MCGRP_MLME, gfp);
14339 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
14341 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
14342 enum nl80211_connect_failed_reason reason,
14345 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14346 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14347 struct sk_buff *msg;
14350 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
14354 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
14360 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14361 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
14362 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
14363 goto nla_put_failure;
14365 genlmsg_end(msg, hdr);
14367 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14368 NL80211_MCGRP_MLME, gfp);
14374 EXPORT_SYMBOL(cfg80211_conn_failed);
14376 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
14377 const u8 *addr, gfp_t gfp)
14379 struct wireless_dev *wdev = dev->ieee80211_ptr;
14380 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14381 struct sk_buff *msg;
14383 u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid);
14388 msg = nlmsg_new(100, gfp);
14392 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14398 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14399 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14400 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14401 goto nla_put_failure;
14403 genlmsg_end(msg, hdr);
14404 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14412 bool cfg80211_rx_spurious_frame(struct net_device *dev,
14413 const u8 *addr, gfp_t gfp)
14415 struct wireless_dev *wdev = dev->ieee80211_ptr;
14418 trace_cfg80211_rx_spurious_frame(dev, addr);
14420 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14421 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
14422 trace_cfg80211_return_bool(false);
14425 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
14427 trace_cfg80211_return_bool(ret);
14430 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
14432 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
14433 const u8 *addr, gfp_t gfp)
14435 struct wireless_dev *wdev = dev->ieee80211_ptr;
14438 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
14440 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14441 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
14442 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
14443 trace_cfg80211_return_bool(false);
14446 ret = __nl80211_unexpected_frame(dev,
14447 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
14449 trace_cfg80211_return_bool(ret);
14452 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
14454 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
14455 struct wireless_dev *wdev, u32 nlportid,
14456 int freq, int sig_dbm,
14457 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
14459 struct net_device *netdev = wdev->netdev;
14460 struct sk_buff *msg;
14463 msg = nlmsg_new(100 + len, gfp);
14467 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14473 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14474 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14475 netdev->ifindex)) ||
14476 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14477 NL80211_ATTR_PAD) ||
14478 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14480 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14481 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14483 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
14484 goto nla_put_failure;
14486 genlmsg_end(msg, hdr);
14488 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14495 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
14496 const u8 *buf, size_t len, bool ack, gfp_t gfp)
14498 struct wiphy *wiphy = wdev->wiphy;
14499 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14500 struct net_device *netdev = wdev->netdev;
14501 struct sk_buff *msg;
14504 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
14506 msg = nlmsg_new(100 + len, gfp);
14510 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
14516 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14517 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14518 netdev->ifindex)) ||
14519 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14520 NL80211_ATTR_PAD) ||
14521 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14522 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14523 NL80211_ATTR_PAD) ||
14524 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
14525 goto nla_put_failure;
14527 genlmsg_end(msg, hdr);
14529 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14530 NL80211_MCGRP_MLME, gfp);
14536 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
14538 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
14539 const char *mac, gfp_t gfp)
14541 struct wireless_dev *wdev = dev->ieee80211_ptr;
14542 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14543 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14549 cb = (void **)msg->cb;
14551 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
14557 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14558 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
14559 goto nla_put_failure;
14561 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
14562 goto nla_put_failure;
14564 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
14566 goto nla_put_failure;
14576 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
14578 void **cb = (void **)msg->cb;
14579 struct cfg80211_registered_device *rdev = cb[2];
14581 nla_nest_end(msg, cb[1]);
14582 genlmsg_end(msg, cb[0]);
14584 memset(msg->cb, 0, sizeof(msg->cb));
14586 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14587 NL80211_MCGRP_MLME, gfp);
14590 void cfg80211_cqm_rssi_notify(struct net_device *dev,
14591 enum nl80211_cqm_rssi_threshold_event rssi_event,
14592 s32 rssi_level, gfp_t gfp)
14594 struct sk_buff *msg;
14595 struct wireless_dev *wdev = dev->ieee80211_ptr;
14596 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14598 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
14600 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
14601 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
14604 if (wdev->cqm_config) {
14605 wdev->cqm_config->last_rssi_event_value = rssi_level;
14607 cfg80211_cqm_rssi_update(rdev, dev);
14609 if (rssi_level == 0)
14610 rssi_level = wdev->cqm_config->last_rssi_event_value;
14613 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14617 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
14619 goto nla_put_failure;
14621 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
14623 goto nla_put_failure;
14625 cfg80211_send_cqm(msg, gfp);
14632 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
14634 void cfg80211_cqm_txe_notify(struct net_device *dev,
14635 const u8 *peer, u32 num_packets,
14636 u32 rate, u32 intvl, gfp_t gfp)
14638 struct sk_buff *msg;
14640 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14644 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14645 goto nla_put_failure;
14647 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14648 goto nla_put_failure;
14650 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14651 goto nla_put_failure;
14653 cfg80211_send_cqm(msg, gfp);
14659 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14661 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14662 const u8 *peer, u32 num_packets, gfp_t gfp)
14664 struct sk_buff *msg;
14666 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14668 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14672 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14673 goto nla_put_failure;
14675 cfg80211_send_cqm(msg, gfp);
14681 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14683 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14685 struct sk_buff *msg;
14687 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14691 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14692 goto nla_put_failure;
14694 cfg80211_send_cqm(msg, gfp);
14700 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14702 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14703 struct net_device *netdev, const u8 *bssid,
14704 const u8 *replay_ctr, gfp_t gfp)
14706 struct sk_buff *msg;
14707 struct nlattr *rekey_attr;
14710 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14714 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14721 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14722 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14723 goto nla_put_failure;
14725 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14727 goto nla_put_failure;
14729 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14730 NL80211_REPLAY_CTR_LEN, replay_ctr))
14731 goto nla_put_failure;
14733 nla_nest_end(msg, rekey_attr);
14735 genlmsg_end(msg, hdr);
14737 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14738 NL80211_MCGRP_MLME, gfp);
14745 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14746 const u8 *replay_ctr, gfp_t gfp)
14748 struct wireless_dev *wdev = dev->ieee80211_ptr;
14749 struct wiphy *wiphy = wdev->wiphy;
14750 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14752 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14753 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14755 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14758 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14759 struct net_device *netdev, int index,
14760 const u8 *bssid, bool preauth, gfp_t gfp)
14762 struct sk_buff *msg;
14763 struct nlattr *attr;
14766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14770 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14776 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14777 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14778 goto nla_put_failure;
14780 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14782 goto nla_put_failure;
14784 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14785 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14787 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14788 goto nla_put_failure;
14790 nla_nest_end(msg, attr);
14792 genlmsg_end(msg, hdr);
14794 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14795 NL80211_MCGRP_MLME, gfp);
14802 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14803 const u8 *bssid, bool preauth, gfp_t gfp)
14805 struct wireless_dev *wdev = dev->ieee80211_ptr;
14806 struct wiphy *wiphy = wdev->wiphy;
14807 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14809 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14810 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14812 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14814 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14815 struct net_device *netdev,
14816 struct cfg80211_chan_def *chandef,
14818 enum nl80211_commands notif,
14821 struct sk_buff *msg;
14824 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14828 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
14834 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14835 goto nla_put_failure;
14837 if (nl80211_send_chandef(msg, chandef))
14838 goto nla_put_failure;
14840 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14841 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14842 goto nla_put_failure;
14844 genlmsg_end(msg, hdr);
14846 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14847 NL80211_MCGRP_MLME, gfp);
14854 void cfg80211_ch_switch_notify(struct net_device *dev,
14855 struct cfg80211_chan_def *chandef)
14857 struct wireless_dev *wdev = dev->ieee80211_ptr;
14858 struct wiphy *wiphy = wdev->wiphy;
14859 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14861 ASSERT_WDEV_LOCK(wdev);
14863 trace_cfg80211_ch_switch_notify(dev, chandef);
14865 wdev->chandef = *chandef;
14866 wdev->preset_chandef = *chandef;
14867 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14868 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
14870 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14872 void cfg80211_ch_switch_started_notify(struct net_device *dev,
14873 struct cfg80211_chan_def *chandef,
14876 struct wireless_dev *wdev = dev->ieee80211_ptr;
14877 struct wiphy *wiphy = wdev->wiphy;
14878 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14880 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14882 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14883 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14885 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14888 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
14889 const struct cfg80211_chan_def *chandef,
14890 enum nl80211_radar_event event,
14891 struct net_device *netdev, gfp_t gfp)
14893 struct sk_buff *msg;
14896 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14900 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14906 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14907 goto nla_put_failure;
14909 /* NOP and radar events don't need a netdev parameter */
14911 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14913 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14914 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14916 goto nla_put_failure;
14919 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14920 goto nla_put_failure;
14922 if (nl80211_send_chandef(msg, chandef))
14923 goto nla_put_failure;
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_sta_opmode_change_notify(struct net_device *dev, const u8 *mac,
14936 struct sta_opmode_info *sta_opmode,
14939 struct sk_buff *msg;
14940 struct wireless_dev *wdev = dev->ieee80211_ptr;
14941 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14947 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14951 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STA_OPMODE_CHANGED);
14957 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14958 goto nla_put_failure;
14960 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
14961 goto nla_put_failure;
14963 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
14964 goto nla_put_failure;
14966 if ((sta_opmode->changed & STA_OPMODE_SMPS_MODE_CHANGED) &&
14967 nla_put_u8(msg, NL80211_ATTR_SMPS_MODE, sta_opmode->smps_mode))
14968 goto nla_put_failure;
14970 if ((sta_opmode->changed & STA_OPMODE_MAX_BW_CHANGED) &&
14971 nla_put_u8(msg, NL80211_ATTR_CHANNEL_WIDTH, sta_opmode->bw))
14972 goto nla_put_failure;
14974 if ((sta_opmode->changed & STA_OPMODE_N_SS_CHANGED) &&
14975 nla_put_u8(msg, NL80211_ATTR_NSS, sta_opmode->rx_nss))
14976 goto nla_put_failure;
14978 genlmsg_end(msg, hdr);
14980 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14981 NL80211_MCGRP_MLME, gfp);
14988 EXPORT_SYMBOL(cfg80211_sta_opmode_change_notify);
14990 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14991 u64 cookie, bool acked, s32 ack_signal,
14992 bool is_valid_ack_signal, gfp_t gfp)
14994 struct wireless_dev *wdev = dev->ieee80211_ptr;
14995 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14996 struct sk_buff *msg;
14999 trace_cfg80211_probe_status(dev, addr, cookie, acked);
15001 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15006 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
15012 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15013 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15014 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
15015 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
15016 NL80211_ATTR_PAD) ||
15017 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)) ||
15018 (is_valid_ack_signal && nla_put_s32(msg, NL80211_ATTR_ACK_SIGNAL,
15020 goto nla_put_failure;
15022 genlmsg_end(msg, hdr);
15024 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15025 NL80211_MCGRP_MLME, gfp);
15031 EXPORT_SYMBOL(cfg80211_probe_status);
15033 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
15034 const u8 *frame, size_t len,
15035 int freq, int sig_dbm)
15037 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15038 struct sk_buff *msg;
15040 struct cfg80211_beacon_registration *reg;
15042 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
15044 spin_lock_bh(&rdev->beacon_registrations_lock);
15045 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
15046 msg = nlmsg_new(len + 100, GFP_ATOMIC);
15048 spin_unlock_bh(&rdev->beacon_registrations_lock);
15052 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
15054 goto nla_put_failure;
15056 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15058 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
15060 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
15061 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
15062 goto nla_put_failure;
15064 genlmsg_end(msg, hdr);
15066 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
15068 spin_unlock_bh(&rdev->beacon_registrations_lock);
15072 spin_unlock_bh(&rdev->beacon_registrations_lock);
15075 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
15078 static int cfg80211_net_detect_results(struct sk_buff *msg,
15079 struct cfg80211_wowlan_wakeup *wakeup)
15081 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
15082 struct nlattr *nl_results, *nl_match, *nl_freqs;
15085 nl_results = nla_nest_start(
15086 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
15090 for (i = 0; i < nd->n_matches; i++) {
15091 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
15093 nl_match = nla_nest_start(msg, i);
15097 /* The SSID attribute is optional in nl80211, but for
15098 * simplicity reasons it's always present in the
15099 * cfg80211 structure. If a driver can't pass the
15100 * SSID, that needs to be changed. A zero length SSID
15101 * is still a valid SSID (wildcard), so it cannot be
15102 * used for this purpose.
15104 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
15105 match->ssid.ssid)) {
15106 nla_nest_cancel(msg, nl_match);
15110 if (match->n_channels) {
15111 nl_freqs = nla_nest_start(
15112 msg, NL80211_ATTR_SCAN_FREQUENCIES);
15114 nla_nest_cancel(msg, nl_match);
15118 for (j = 0; j < match->n_channels; j++) {
15119 if (nla_put_u32(msg, j, match->channels[j])) {
15120 nla_nest_cancel(msg, nl_freqs);
15121 nla_nest_cancel(msg, nl_match);
15126 nla_nest_end(msg, nl_freqs);
15129 nla_nest_end(msg, nl_match);
15133 nla_nest_end(msg, nl_results);
15137 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
15138 struct cfg80211_wowlan_wakeup *wakeup,
15141 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15142 struct sk_buff *msg;
15146 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
15149 size += wakeup->packet_present_len;
15151 msg = nlmsg_new(size, gfp);
15155 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
15159 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15160 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15164 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
15165 wdev->netdev->ifindex))
15169 struct nlattr *reasons;
15171 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
15175 if (wakeup->disconnect &&
15176 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
15178 if (wakeup->magic_pkt &&
15179 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
15181 if (wakeup->gtk_rekey_failure &&
15182 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
15184 if (wakeup->eap_identity_req &&
15185 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
15187 if (wakeup->four_way_handshake &&
15188 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
15190 if (wakeup->rfkill_release &&
15191 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
15194 if (wakeup->pattern_idx >= 0 &&
15195 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
15196 wakeup->pattern_idx))
15199 if (wakeup->tcp_match &&
15200 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
15203 if (wakeup->tcp_connlost &&
15204 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
15207 if (wakeup->tcp_nomoretokens &&
15209 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
15212 if (wakeup->packet) {
15213 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
15214 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
15216 if (!wakeup->packet_80211) {
15218 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
15220 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
15223 if (wakeup->packet_len &&
15224 nla_put_u32(msg, len_attr, wakeup->packet_len))
15227 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
15232 if (wakeup->net_detect &&
15233 cfg80211_net_detect_results(msg, wakeup))
15236 nla_nest_end(msg, reasons);
15239 genlmsg_end(msg, hdr);
15241 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15242 NL80211_MCGRP_MLME, gfp);
15248 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
15251 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
15252 enum nl80211_tdls_operation oper,
15253 u16 reason_code, gfp_t gfp)
15255 struct wireless_dev *wdev = dev->ieee80211_ptr;
15256 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15257 struct sk_buff *msg;
15260 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
15263 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15267 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
15273 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15274 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15275 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
15276 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
15277 (reason_code > 0 &&
15278 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
15279 goto nla_put_failure;
15281 genlmsg_end(msg, hdr);
15283 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15284 NL80211_MCGRP_MLME, gfp);
15290 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
15292 static int nl80211_netlink_notify(struct notifier_block * nb,
15293 unsigned long state,
15296 struct netlink_notify *notify = _notify;
15297 struct cfg80211_registered_device *rdev;
15298 struct wireless_dev *wdev;
15299 struct cfg80211_beacon_registration *reg, *tmp;
15301 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
15302 return NOTIFY_DONE;
15306 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
15307 struct cfg80211_sched_scan_request *sched_scan_req;
15309 list_for_each_entry_rcu(sched_scan_req,
15310 &rdev->sched_scan_req_list,
15312 if (sched_scan_req->owner_nlportid == notify->portid) {
15313 sched_scan_req->nl_owner_dead = true;
15314 schedule_work(&rdev->sched_scan_stop_wk);
15318 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15319 cfg80211_mlme_unregister_socket(wdev, notify->portid);
15321 if (wdev->owner_nlportid == notify->portid) {
15322 wdev->nl_owner_dead = true;
15323 schedule_work(&rdev->destroy_work);
15324 } else if (wdev->conn_owner_nlportid == notify->portid) {
15325 schedule_work(&wdev->disconnect_wk);
15329 spin_lock_bh(&rdev->beacon_registrations_lock);
15330 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
15332 if (reg->nlportid == notify->portid) {
15333 list_del(®->list);
15338 spin_unlock_bh(&rdev->beacon_registrations_lock);
15344 * It is possible that the user space process that is controlling the
15345 * indoor setting disappeared, so notify the regulatory core.
15347 regulatory_netlink_notify(notify->portid);
15351 static struct notifier_block nl80211_netlink_notifier = {
15352 .notifier_call = nl80211_netlink_notify,
15355 void cfg80211_ft_event(struct net_device *netdev,
15356 struct cfg80211_ft_event_params *ft_event)
15358 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
15359 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15360 struct sk_buff *msg;
15363 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
15365 if (!ft_event->target_ap)
15368 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
15372 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
15376 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15377 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15378 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
15381 if (ft_event->ies &&
15382 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
15384 if (ft_event->ric_ies &&
15385 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
15386 ft_event->ric_ies))
15389 genlmsg_end(msg, hdr);
15391 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15392 NL80211_MCGRP_MLME, GFP_KERNEL);
15397 EXPORT_SYMBOL(cfg80211_ft_event);
15399 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
15401 struct cfg80211_registered_device *rdev;
15402 struct sk_buff *msg;
15406 rdev = wiphy_to_rdev(wdev->wiphy);
15407 if (!rdev->crit_proto_nlportid)
15410 nlportid = rdev->crit_proto_nlportid;
15411 rdev->crit_proto_nlportid = 0;
15413 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15417 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
15419 goto nla_put_failure;
15421 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15422 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15424 goto nla_put_failure;
15426 genlmsg_end(msg, hdr);
15428 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15434 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
15436 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
15438 struct wiphy *wiphy = wdev->wiphy;
15439 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15440 struct sk_buff *msg;
15443 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
15447 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
15451 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15452 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
15453 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15457 genlmsg_end(msg, hdr);
15459 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
15460 NL80211_MCGRP_MLME, GFP_KERNEL);
15466 int cfg80211_external_auth_request(struct net_device *dev,
15467 struct cfg80211_external_auth_params *params,
15470 struct wireless_dev *wdev = dev->ieee80211_ptr;
15471 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15472 struct sk_buff *msg;
15475 if (!wdev->conn_owner_nlportid)
15478 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15482 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_EXTERNAL_AUTH);
15484 goto nla_put_failure;
15486 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15487 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15488 nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, params->key_mgmt_suite) ||
15489 nla_put_u32(msg, NL80211_ATTR_EXTERNAL_AUTH_ACTION,
15491 nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, params->bssid) ||
15492 nla_put(msg, NL80211_ATTR_SSID, params->ssid.ssid_len,
15493 params->ssid.ssid))
15494 goto nla_put_failure;
15496 genlmsg_end(msg, hdr);
15497 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
15498 wdev->conn_owner_nlportid);
15505 EXPORT_SYMBOL(cfg80211_external_auth_request);
15507 /* initialisation/exit functions */
15509 int __init nl80211_init(void)
15513 err = genl_register_family(&nl80211_fam);
15517 err = netlink_register_notifier(&nl80211_netlink_notifier);
15523 genl_unregister_family(&nl80211_fam);
15527 void nl80211_exit(void)
15529 netlink_unregister_notifier(&nl80211_netlink_notifier);
15530 genl_unregister_family(&nl80211_fam);