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/etherdevice.h>
20 #include <net/net_namespace.h>
21 #include <net/genetlink.h>
22 #include <net/cfg80211.h>
24 #include <net/inet_connection_sock.h>
30 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
35 /* the netlink family */
36 static struct genl_family nl80211_fam;
38 /* multicast groups */
39 enum nl80211_multicast_groups {
42 NL80211_MCGRP_REGULATORY,
46 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
49 static const struct genl_multicast_group nl80211_mcgrps[] = {
50 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
51 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
52 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
53 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
54 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
55 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
56 #ifdef CONFIG_NL80211_TESTMODE
57 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
61 /* returns ERR_PTR values */
62 static struct wireless_dev *
63 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
65 struct cfg80211_registered_device *rdev;
66 struct wireless_dev *result = NULL;
67 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
68 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
75 if (!have_ifidx && !have_wdev_id)
76 return ERR_PTR(-EINVAL);
79 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
81 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
82 wiphy_idx = wdev_id >> 32;
85 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
86 struct wireless_dev *wdev;
88 if (wiphy_net(&rdev->wiphy) != netns)
91 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
94 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
95 if (have_ifidx && wdev->netdev &&
96 wdev->netdev->ifindex == ifidx) {
100 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 return ERR_PTR(-ENODEV);
115 static struct cfg80211_registered_device *
116 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
118 struct cfg80211_registered_device *rdev = NULL, *tmp;
119 struct net_device *netdev;
123 if (!attrs[NL80211_ATTR_WIPHY] &&
124 !attrs[NL80211_ATTR_IFINDEX] &&
125 !attrs[NL80211_ATTR_WDEV])
126 return ERR_PTR(-EINVAL);
128 if (attrs[NL80211_ATTR_WIPHY])
129 rdev = cfg80211_rdev_by_wiphy_idx(
130 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
132 if (attrs[NL80211_ATTR_WDEV]) {
133 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
134 struct wireless_dev *wdev;
137 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
139 /* make sure wdev exists */
140 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
141 if (wdev->identifier != (u32)wdev_id)
150 if (rdev && tmp != rdev)
151 return ERR_PTR(-EINVAL);
156 if (attrs[NL80211_ATTR_IFINDEX]) {
157 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
159 netdev = __dev_get_by_index(netns, ifindex);
161 if (netdev->ieee80211_ptr)
163 netdev->ieee80211_ptr->wiphy);
167 /* not wireless device -- return error */
169 return ERR_PTR(-EINVAL);
171 /* mismatch -- return error */
172 if (rdev && tmp != rdev)
173 return ERR_PTR(-EINVAL);
180 return ERR_PTR(-ENODEV);
182 if (netns != wiphy_net(&rdev->wiphy))
183 return ERR_PTR(-ENODEV);
189 * This function returns a pointer to the driver
190 * that the genl_info item that is passed refers to.
192 * The result of this can be a PTR_ERR and hence must
193 * be checked with IS_ERR() for errors.
195 static struct cfg80211_registered_device *
196 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
198 return __cfg80211_rdev_from_attrs(netns, info->attrs);
201 /* policy for the attributes */
202 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
203 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
204 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
206 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
208 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
209 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
210 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
211 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
212 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
215 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
216 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
217 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
218 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
219 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
221 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
222 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
223 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
225 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
226 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
228 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
229 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
230 .len = WLAN_MAX_KEY_LEN },
231 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
232 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
233 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
234 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
235 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
237 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
238 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
239 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
240 .len = IEEE80211_MAX_DATA_LEN },
241 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
242 .len = IEEE80211_MAX_DATA_LEN },
243 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
244 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
245 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
246 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
247 .len = NL80211_MAX_SUPP_RATES },
248 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
249 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
250 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
251 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_MESH_ID_LEN },
253 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
255 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
256 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
258 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
259 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
260 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
261 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
262 .len = NL80211_MAX_SUPP_RATES },
263 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
265 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
266 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
268 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
270 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
271 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
272 .len = IEEE80211_MAX_DATA_LEN },
273 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
274 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
276 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
277 .len = IEEE80211_MAX_SSID_LEN },
278 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
279 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
280 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
281 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
282 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
283 [NL80211_ATTR_STA_FLAGS2] = {
284 .len = sizeof(struct nl80211_sta_flag_update),
286 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
287 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
288 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
289 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
290 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
291 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
292 [NL80211_ATTR_PID] = { .type = NLA_U32 },
293 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
294 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
295 .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_ACL_POLICY] = {. type = NLA_U32 },
352 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
353 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
354 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
355 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
356 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
357 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
358 .len = NL80211_VHT_CAPABILITY_LEN,
360 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
361 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
362 .len = IEEE80211_MAX_DATA_LEN },
363 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
364 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
365 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
366 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
367 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
368 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
369 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
370 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
371 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
372 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
373 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
374 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
375 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
376 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
377 .len = IEEE80211_QOS_MAP_LEN_MAX },
378 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
379 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
380 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
381 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
382 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
383 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
384 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
385 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
386 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
387 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
388 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
390 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
391 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
392 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
393 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
394 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
395 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
396 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
397 .len = VHT_MUMIMO_GROUPS_DATA_LEN
399 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
400 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
401 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
402 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
403 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
404 .len = FILS_MAX_KEK_LEN },
405 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
406 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
407 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
408 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
409 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
410 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
412 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
415 /* policy for the key attributes */
416 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
417 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
418 [NL80211_KEY_IDX] = { .type = NLA_U8 },
419 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
420 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
421 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
422 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
423 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
424 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
427 /* policy for the key default flags */
428 static const struct nla_policy
429 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
430 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
431 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
435 /* policy for WoWLAN attributes */
436 static const struct nla_policy
437 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
438 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
440 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
442 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
444 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
445 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
446 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
447 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
450 static const struct nla_policy
451 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
452 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
453 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
454 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
455 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
456 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
457 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
458 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
459 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
461 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
462 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
464 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
465 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
466 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
468 #endif /* CONFIG_PM */
470 /* policy for coalesce rule attributes */
471 static const struct nla_policy
472 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
473 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
474 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
475 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
478 /* policy for GTK rekey offload attributes */
479 static const struct nla_policy
480 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
481 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
482 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
483 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
486 static const struct nla_policy
487 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
488 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
489 .len = IEEE80211_MAX_SSID_LEN },
490 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
493 static const struct nla_policy
494 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
495 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
496 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
499 static const struct nla_policy
500 nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
501 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
502 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
503 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
504 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
508 /* policy for NAN function attributes */
509 static const struct nla_policy
510 nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
511 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
512 [NL80211_NAN_FUNC_SERVICE_ID] = { .type = NLA_BINARY,
513 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
514 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
515 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
516 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
517 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
518 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
519 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
520 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
521 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
522 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
523 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
524 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
525 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
526 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
527 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
528 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
531 /* policy for Service Response Filter attributes */
532 static const struct nla_policy
533 nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
534 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
535 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
536 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
537 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
538 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
541 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
542 struct netlink_callback *cb,
543 struct cfg80211_registered_device **rdev,
544 struct wireless_dev **wdev)
549 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
550 genl_family_attrbuf(&nl80211_fam),
551 nl80211_fam.maxattr, nl80211_policy);
555 *wdev = __cfg80211_wdev_from_attrs(
557 genl_family_attrbuf(&nl80211_fam));
559 return PTR_ERR(*wdev);
560 *rdev = wiphy_to_rdev((*wdev)->wiphy);
561 /* 0 is the first index - add 1 to parse only once */
562 cb->args[0] = (*rdev)->wiphy_idx + 1;
563 cb->args[1] = (*wdev)->identifier;
565 /* subtract the 1 again here */
566 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
567 struct wireless_dev *tmp;
571 *rdev = wiphy_to_rdev(wiphy);
574 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
575 if (tmp->identifier == cb->args[1]) {
589 static bool is_valid_ie_attr(const struct nlattr *attr)
597 pos = nla_data(attr);
618 /* message building helper */
619 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
622 /* since there is no private header just add the generic one */
623 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
626 static int nl80211_msg_put_channel(struct sk_buff *msg,
627 struct ieee80211_channel *chan,
630 /* Some channels must be completely excluded from the
631 * list to protect old user-space tools from breaking
633 if (!large && chan->flags &
634 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
637 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
639 goto nla_put_failure;
641 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
642 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
643 goto nla_put_failure;
644 if (chan->flags & IEEE80211_CHAN_NO_IR) {
645 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
646 goto nla_put_failure;
647 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
648 goto nla_put_failure;
650 if (chan->flags & IEEE80211_CHAN_RADAR) {
651 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
652 goto nla_put_failure;
656 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
658 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
660 goto nla_put_failure;
661 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
663 goto nla_put_failure;
665 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
667 goto nla_put_failure;
672 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
673 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
674 goto nla_put_failure;
675 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
676 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
677 goto nla_put_failure;
678 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
679 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
680 goto nla_put_failure;
681 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
682 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
683 goto nla_put_failure;
684 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
685 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
686 goto nla_put_failure;
687 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
688 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
689 goto nla_put_failure;
690 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
691 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
692 goto nla_put_failure;
693 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
694 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
695 goto nla_put_failure;
698 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
699 DBM_TO_MBM(chan->max_power)))
700 goto nla_put_failure;
708 /* netlink command implementations */
715 bool def_uni, def_multi;
718 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
720 struct nlattr *tb[NL80211_KEY_MAX + 1];
721 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
726 k->def = !!tb[NL80211_KEY_DEFAULT];
727 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
736 if (tb[NL80211_KEY_IDX])
737 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
739 if (tb[NL80211_KEY_DATA]) {
740 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
741 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
744 if (tb[NL80211_KEY_SEQ]) {
745 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
746 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
749 if (tb[NL80211_KEY_CIPHER])
750 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
752 if (tb[NL80211_KEY_TYPE]) {
753 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
754 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
758 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
759 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
761 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
762 tb[NL80211_KEY_DEFAULT_TYPES],
763 nl80211_key_default_policy);
767 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
768 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
774 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
776 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
777 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
778 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
781 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
782 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
783 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
786 if (info->attrs[NL80211_ATTR_KEY_IDX])
787 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
789 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
790 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
792 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
793 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
802 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
803 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
804 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
808 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
809 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
810 int err = nla_parse_nested(
811 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
812 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
813 nl80211_key_default_policy);
817 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
818 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
824 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
828 memset(k, 0, sizeof(*k));
832 if (info->attrs[NL80211_ATTR_KEY])
833 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
835 err = nl80211_parse_key_old(info, k);
840 if (k->def && k->defmgmt)
844 if (k->def_uni || !k->def_multi)
850 if (k->idx < 4 || k->idx > 5)
853 if (k->idx < 0 || k->idx > 3)
856 if (k->idx < 0 || k->idx > 5)
864 static struct cfg80211_cached_keys *
865 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
866 struct nlattr *keys, bool *no_ht)
868 struct key_parse parse;
870 struct cfg80211_cached_keys *result;
871 int rem, err, def = 0;
872 bool have_key = false;
874 nla_for_each_nested(key, keys, rem) {
882 result = kzalloc(sizeof(*result), GFP_KERNEL);
884 return ERR_PTR(-ENOMEM);
888 nla_for_each_nested(key, keys, rem) {
889 memset(&parse, 0, sizeof(parse));
892 err = nl80211_parse_key_new(key, &parse);
898 if (parse.idx < 0 || parse.idx > 3)
904 result->def = parse.idx;
905 if (!parse.def_uni || !parse.def_multi)
907 } else if (parse.defmgmt)
909 err = cfg80211_validate_key_settings(rdev, &parse.p,
910 parse.idx, false, NULL);
913 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
914 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
918 result->params[parse.idx].cipher = parse.p.cipher;
919 result->params[parse.idx].key_len = parse.p.key_len;
920 result->params[parse.idx].key = result->data[parse.idx];
921 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
923 /* must be WEP key if we got here */
928 if (result->def < 0) {
939 static int nl80211_key_allowed(struct wireless_dev *wdev)
941 ASSERT_WDEV_LOCK(wdev);
943 switch (wdev->iftype) {
944 case NL80211_IFTYPE_AP:
945 case NL80211_IFTYPE_AP_VLAN:
946 case NL80211_IFTYPE_P2P_GO:
947 case NL80211_IFTYPE_MESH_POINT:
949 case NL80211_IFTYPE_ADHOC:
950 case NL80211_IFTYPE_STATION:
951 case NL80211_IFTYPE_P2P_CLIENT:
952 if (!wdev->current_bss)
955 case NL80211_IFTYPE_UNSPECIFIED:
956 case NL80211_IFTYPE_OCB:
957 case NL80211_IFTYPE_MONITOR:
958 case NL80211_IFTYPE_NAN:
959 case NL80211_IFTYPE_P2P_DEVICE:
960 case NL80211_IFTYPE_WDS:
961 case NUM_NL80211_IFTYPES:
968 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
971 struct ieee80211_channel *chan;
975 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
976 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
981 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
983 struct nlattr *nl_modes = nla_nest_start(msg, attr);
987 goto nla_put_failure;
991 if ((ifmodes & 1) && nla_put_flag(msg, i))
992 goto nla_put_failure;
997 nla_nest_end(msg, nl_modes);
1004 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
1005 struct sk_buff *msg,
1008 struct nlattr *nl_combis;
1011 nl_combis = nla_nest_start(msg,
1012 NL80211_ATTR_INTERFACE_COMBINATIONS);
1014 goto nla_put_failure;
1016 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1017 const struct ieee80211_iface_combination *c;
1018 struct nlattr *nl_combi, *nl_limits;
1020 c = &wiphy->iface_combinations[i];
1022 nl_combi = nla_nest_start(msg, i + 1);
1024 goto nla_put_failure;
1026 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1028 goto nla_put_failure;
1030 for (j = 0; j < c->n_limits; j++) {
1031 struct nlattr *nl_limit;
1033 nl_limit = nla_nest_start(msg, j + 1);
1035 goto nla_put_failure;
1036 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1038 goto nla_put_failure;
1039 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1040 c->limits[j].types))
1041 goto nla_put_failure;
1042 nla_nest_end(msg, nl_limit);
1045 nla_nest_end(msg, nl_limits);
1047 if (c->beacon_int_infra_match &&
1048 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1049 goto nla_put_failure;
1050 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1051 c->num_different_channels) ||
1052 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1054 goto nla_put_failure;
1056 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1057 c->radar_detect_widths) ||
1058 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1059 c->radar_detect_regions)))
1060 goto nla_put_failure;
1061 if (c->beacon_int_min_gcd &&
1062 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1063 c->beacon_int_min_gcd))
1064 goto nla_put_failure;
1066 nla_nest_end(msg, nl_combi);
1069 nla_nest_end(msg, nl_combis);
1077 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1078 struct sk_buff *msg)
1080 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1081 struct nlattr *nl_tcp;
1086 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1090 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1091 tcp->data_payload_max))
1094 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1095 tcp->data_payload_max))
1098 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1101 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1102 sizeof(*tcp->tok), tcp->tok))
1105 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1106 tcp->data_interval_max))
1109 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1110 tcp->wake_payload_max))
1113 nla_nest_end(msg, nl_tcp);
1117 static int nl80211_send_wowlan(struct sk_buff *msg,
1118 struct cfg80211_registered_device *rdev,
1121 struct nlattr *nl_wowlan;
1123 if (!rdev->wiphy.wowlan)
1126 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1130 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1131 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1132 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1133 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1134 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1135 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1136 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1137 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1138 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1139 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1140 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1141 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1142 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1143 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1144 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1145 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1148 if (rdev->wiphy.wowlan->n_patterns) {
1149 struct nl80211_pattern_support pat = {
1150 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1151 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1152 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1153 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1156 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1161 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1162 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1163 rdev->wiphy.wowlan->max_nd_match_sets))
1166 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1169 nla_nest_end(msg, nl_wowlan);
1175 static int nl80211_send_coalesce(struct sk_buff *msg,
1176 struct cfg80211_registered_device *rdev)
1178 struct nl80211_coalesce_rule_support rule;
1180 if (!rdev->wiphy.coalesce)
1183 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1184 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1185 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1186 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1187 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1188 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1190 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1196 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1197 struct ieee80211_supported_band *sband)
1199 struct nlattr *nl_rates, *nl_rate;
1200 struct ieee80211_rate *rate;
1204 if (sband->ht_cap.ht_supported &&
1205 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1206 sizeof(sband->ht_cap.mcs),
1207 &sband->ht_cap.mcs) ||
1208 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1209 sband->ht_cap.cap) ||
1210 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1211 sband->ht_cap.ampdu_factor) ||
1212 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1213 sband->ht_cap.ampdu_density)))
1217 if (sband->vht_cap.vht_supported &&
1218 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1219 sizeof(sband->vht_cap.vht_mcs),
1220 &sband->vht_cap.vht_mcs) ||
1221 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1222 sband->vht_cap.cap)))
1226 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1230 for (i = 0; i < sband->n_bitrates; i++) {
1231 nl_rate = nla_nest_start(msg, i);
1235 rate = &sband->bitrates[i];
1236 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1239 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1241 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1244 nla_nest_end(msg, nl_rate);
1247 nla_nest_end(msg, nl_rates);
1253 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1254 const struct ieee80211_txrx_stypes *mgmt_stypes)
1257 struct nlattr *nl_ftypes, *nl_ifs;
1258 enum nl80211_iftype ift;
1264 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1268 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1269 nl_ftypes = nla_nest_start(msg, ift);
1273 stypes = mgmt_stypes[ift].tx;
1276 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1277 (i << 4) | IEEE80211_FTYPE_MGMT))
1282 nla_nest_end(msg, nl_ftypes);
1285 nla_nest_end(msg, nl_ifs);
1287 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1291 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1292 nl_ftypes = nla_nest_start(msg, ift);
1296 stypes = mgmt_stypes[ift].rx;
1299 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1300 (i << 4) | IEEE80211_FTYPE_MGMT))
1305 nla_nest_end(msg, nl_ftypes);
1307 nla_nest_end(msg, nl_ifs);
1312 #define CMD(op, n) \
1314 if (rdev->ops->op) { \
1316 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1317 goto nla_put_failure; \
1321 static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1322 struct sk_buff *msg)
1327 * do *NOT* add anything into this function, new things need to be
1328 * advertised only to new versions of userspace that can deal with
1329 * the split (and they can't possibly care about new features...
1331 CMD(add_virtual_intf, NEW_INTERFACE);
1332 CMD(change_virtual_intf, SET_INTERFACE);
1333 CMD(add_key, NEW_KEY);
1334 CMD(start_ap, START_AP);
1335 CMD(add_station, NEW_STATION);
1336 CMD(add_mpath, NEW_MPATH);
1337 CMD(update_mesh_config, SET_MESH_CONFIG);
1338 CMD(change_bss, SET_BSS);
1339 CMD(auth, AUTHENTICATE);
1340 CMD(assoc, ASSOCIATE);
1341 CMD(deauth, DEAUTHENTICATE);
1342 CMD(disassoc, DISASSOCIATE);
1343 CMD(join_ibss, JOIN_IBSS);
1344 CMD(join_mesh, JOIN_MESH);
1345 CMD(set_pmksa, SET_PMKSA);
1346 CMD(del_pmksa, DEL_PMKSA);
1347 CMD(flush_pmksa, FLUSH_PMKSA);
1348 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1349 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1350 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1351 CMD(mgmt_tx, FRAME);
1352 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1353 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1355 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1356 goto nla_put_failure;
1358 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1359 rdev->ops->join_mesh) {
1361 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1362 goto nla_put_failure;
1364 CMD(set_wds_peer, SET_WDS_PEER);
1365 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1366 CMD(tdls_mgmt, TDLS_MGMT);
1367 CMD(tdls_oper, TDLS_OPER);
1369 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1370 CMD(sched_scan_start, START_SCHED_SCAN);
1371 CMD(probe_client, PROBE_CLIENT);
1372 CMD(set_noack_map, SET_NOACK_MAP);
1373 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1375 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1376 goto nla_put_failure;
1378 CMD(start_p2p_device, START_P2P_DEVICE);
1379 CMD(set_mcast_rate, SET_MCAST_RATE);
1380 #ifdef CONFIG_NL80211_TESTMODE
1381 CMD(testmode_cmd, TESTMODE);
1384 if (rdev->ops->connect || rdev->ops->auth) {
1386 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1387 goto nla_put_failure;
1390 if (rdev->ops->disconnect || rdev->ops->deauth) {
1392 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1393 goto nla_put_failure;
1401 struct nl80211_dump_wiphy_state {
1404 long split_start, band_start, chan_start, capa_start;
1408 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1409 enum nl80211_commands cmd,
1410 struct sk_buff *msg, u32 portid, u32 seq,
1411 int flags, struct nl80211_dump_wiphy_state *state)
1414 struct nlattr *nl_bands, *nl_band;
1415 struct nlattr *nl_freqs, *nl_freq;
1416 struct nlattr *nl_cmds;
1417 enum nl80211_band band;
1418 struct ieee80211_channel *chan;
1420 const struct ieee80211_txrx_stypes *mgmt_stypes =
1421 rdev->wiphy.mgmt_stypes;
1424 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1428 if (WARN_ON(!state))
1431 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1432 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1433 wiphy_name(&rdev->wiphy)) ||
1434 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1435 cfg80211_rdev_list_generation))
1436 goto nla_put_failure;
1438 if (cmd != NL80211_CMD_NEW_WIPHY)
1441 switch (state->split_start) {
1443 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1444 rdev->wiphy.retry_short) ||
1445 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1446 rdev->wiphy.retry_long) ||
1447 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1448 rdev->wiphy.frag_threshold) ||
1449 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1450 rdev->wiphy.rts_threshold) ||
1451 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1452 rdev->wiphy.coverage_class) ||
1453 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1454 rdev->wiphy.max_scan_ssids) ||
1455 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1456 rdev->wiphy.max_sched_scan_ssids) ||
1457 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1458 rdev->wiphy.max_scan_ie_len) ||
1459 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1460 rdev->wiphy.max_sched_scan_ie_len) ||
1461 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1462 rdev->wiphy.max_match_sets) ||
1463 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1464 rdev->wiphy.max_sched_scan_plans) ||
1465 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1466 rdev->wiphy.max_sched_scan_plan_interval) ||
1467 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1468 rdev->wiphy.max_sched_scan_plan_iterations))
1469 goto nla_put_failure;
1471 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1472 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1473 goto nla_put_failure;
1474 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1475 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1476 goto nla_put_failure;
1477 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1478 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1479 goto nla_put_failure;
1480 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1481 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1482 goto nla_put_failure;
1483 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1484 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1485 goto nla_put_failure;
1486 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1487 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1488 goto nla_put_failure;
1489 state->split_start++;
1493 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1494 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1495 rdev->wiphy.cipher_suites))
1496 goto nla_put_failure;
1498 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1499 rdev->wiphy.max_num_pmkids))
1500 goto nla_put_failure;
1502 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1503 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1504 goto nla_put_failure;
1506 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1507 rdev->wiphy.available_antennas_tx) ||
1508 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1509 rdev->wiphy.available_antennas_rx))
1510 goto nla_put_failure;
1512 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1513 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1514 rdev->wiphy.probe_resp_offload))
1515 goto nla_put_failure;
1517 if ((rdev->wiphy.available_antennas_tx ||
1518 rdev->wiphy.available_antennas_rx) &&
1519 rdev->ops->get_antenna) {
1520 u32 tx_ant = 0, rx_ant = 0;
1523 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1525 if (nla_put_u32(msg,
1526 NL80211_ATTR_WIPHY_ANTENNA_TX,
1529 NL80211_ATTR_WIPHY_ANTENNA_RX,
1531 goto nla_put_failure;
1535 state->split_start++;
1539 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1540 rdev->wiphy.interface_modes))
1541 goto nla_put_failure;
1542 state->split_start++;
1546 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1548 goto nla_put_failure;
1550 for (band = state->band_start;
1551 band < NUM_NL80211_BANDS; band++) {
1552 struct ieee80211_supported_band *sband;
1554 sband = rdev->wiphy.bands[band];
1559 nl_band = nla_nest_start(msg, band);
1561 goto nla_put_failure;
1563 switch (state->chan_start) {
1565 if (nl80211_send_band_rateinfo(msg, sband))
1566 goto nla_put_failure;
1567 state->chan_start++;
1571 /* add frequencies */
1572 nl_freqs = nla_nest_start(
1573 msg, NL80211_BAND_ATTR_FREQS);
1575 goto nla_put_failure;
1577 for (i = state->chan_start - 1;
1578 i < sband->n_channels;
1580 nl_freq = nla_nest_start(msg, i);
1582 goto nla_put_failure;
1584 chan = &sband->channels[i];
1586 if (nl80211_msg_put_channel(
1589 goto nla_put_failure;
1591 nla_nest_end(msg, nl_freq);
1595 if (i < sband->n_channels)
1596 state->chan_start = i + 2;
1598 state->chan_start = 0;
1599 nla_nest_end(msg, nl_freqs);
1602 nla_nest_end(msg, nl_band);
1605 /* start again here */
1606 if (state->chan_start)
1611 nla_nest_end(msg, nl_bands);
1613 if (band < NUM_NL80211_BANDS)
1614 state->band_start = band + 1;
1616 state->band_start = 0;
1618 /* if bands & channels are done, continue outside */
1619 if (state->band_start == 0 && state->chan_start == 0)
1620 state->split_start++;
1624 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1626 goto nla_put_failure;
1628 i = nl80211_add_commands_unsplit(rdev, msg);
1630 goto nla_put_failure;
1632 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1633 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1634 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1635 CMD(channel_switch, CHANNEL_SWITCH);
1636 CMD(set_qos_map, SET_QOS_MAP);
1637 if (rdev->wiphy.features &
1638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1639 CMD(add_tx_ts, ADD_TX_TS);
1640 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
1641 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
1645 nla_nest_end(msg, nl_cmds);
1646 state->split_start++;
1650 if (rdev->ops->remain_on_channel &&
1651 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1653 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1654 rdev->wiphy.max_remain_on_channel_duration))
1655 goto nla_put_failure;
1657 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1658 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1659 goto nla_put_failure;
1661 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1662 goto nla_put_failure;
1663 state->split_start++;
1668 if (nl80211_send_wowlan(msg, rdev, state->split))
1669 goto nla_put_failure;
1670 state->split_start++;
1674 state->split_start++;
1677 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1678 rdev->wiphy.software_iftypes))
1679 goto nla_put_failure;
1681 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1683 goto nla_put_failure;
1685 state->split_start++;
1689 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1690 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1691 rdev->wiphy.ap_sme_capa))
1692 goto nla_put_failure;
1694 features = rdev->wiphy.features;
1696 * We can only add the per-channel limit information if the
1697 * dump is split, otherwise it makes it too big. Therefore
1698 * only advertise it in that case.
1701 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1702 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1703 goto nla_put_failure;
1705 if (rdev->wiphy.ht_capa_mod_mask &&
1706 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1707 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1708 rdev->wiphy.ht_capa_mod_mask))
1709 goto nla_put_failure;
1711 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1712 rdev->wiphy.max_acl_mac_addrs &&
1713 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1714 rdev->wiphy.max_acl_mac_addrs))
1715 goto nla_put_failure;
1718 * Any information below this point is only available to
1719 * applications that can deal with it being split. This
1720 * helps ensure that newly added capabilities don't break
1721 * older tools by overrunning their buffers.
1723 * We still increment split_start so that in the split
1724 * case we'll continue with more data in the next round,
1725 * but break unconditionally so unsplit data stops here.
1727 state->split_start++;
1730 if (rdev->wiphy.extended_capabilities &&
1731 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1732 rdev->wiphy.extended_capabilities_len,
1733 rdev->wiphy.extended_capabilities) ||
1734 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1735 rdev->wiphy.extended_capabilities_len,
1736 rdev->wiphy.extended_capabilities_mask)))
1737 goto nla_put_failure;
1739 if (rdev->wiphy.vht_capa_mod_mask &&
1740 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1741 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1742 rdev->wiphy.vht_capa_mod_mask))
1743 goto nla_put_failure;
1745 state->split_start++;
1748 if (nl80211_send_coalesce(msg, rdev))
1749 goto nla_put_failure;
1751 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1752 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1753 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1754 goto nla_put_failure;
1756 if (rdev->wiphy.max_ap_assoc_sta &&
1757 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1758 rdev->wiphy.max_ap_assoc_sta))
1759 goto nla_put_failure;
1761 state->split_start++;
1764 if (rdev->wiphy.n_vendor_commands) {
1765 const struct nl80211_vendor_cmd_info *info;
1766 struct nlattr *nested;
1768 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1770 goto nla_put_failure;
1772 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1773 info = &rdev->wiphy.vendor_commands[i].info;
1774 if (nla_put(msg, i + 1, sizeof(*info), info))
1775 goto nla_put_failure;
1777 nla_nest_end(msg, nested);
1780 if (rdev->wiphy.n_vendor_events) {
1781 const struct nl80211_vendor_cmd_info *info;
1782 struct nlattr *nested;
1784 nested = nla_nest_start(msg,
1785 NL80211_ATTR_VENDOR_EVENTS);
1787 goto nla_put_failure;
1789 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1790 info = &rdev->wiphy.vendor_events[i];
1791 if (nla_put(msg, i + 1, sizeof(*info), info))
1792 goto nla_put_failure;
1794 nla_nest_end(msg, nested);
1796 state->split_start++;
1799 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1800 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1801 rdev->wiphy.max_num_csa_counters))
1802 goto nla_put_failure;
1804 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1805 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1806 goto nla_put_failure;
1808 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1809 sizeof(rdev->wiphy.ext_features),
1810 rdev->wiphy.ext_features))
1811 goto nla_put_failure;
1813 if (rdev->wiphy.bss_select_support) {
1814 struct nlattr *nested;
1815 u32 bss_select_support = rdev->wiphy.bss_select_support;
1817 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1819 goto nla_put_failure;
1822 while (bss_select_support) {
1823 if ((bss_select_support & 1) &&
1824 nla_put_flag(msg, i))
1825 goto nla_put_failure;
1827 bss_select_support >>= 1;
1829 nla_nest_end(msg, nested);
1832 state->split_start++;
1835 if (rdev->wiphy.num_iftype_ext_capab &&
1836 rdev->wiphy.iftype_ext_capab) {
1837 struct nlattr *nested_ext_capab, *nested;
1839 nested = nla_nest_start(msg,
1840 NL80211_ATTR_IFTYPE_EXT_CAPA);
1842 goto nla_put_failure;
1844 for (i = state->capa_start;
1845 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1846 const struct wiphy_iftype_ext_capab *capab;
1848 capab = &rdev->wiphy.iftype_ext_capab[i];
1850 nested_ext_capab = nla_nest_start(msg, i);
1851 if (!nested_ext_capab ||
1852 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1854 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1855 capab->extended_capabilities_len,
1856 capab->extended_capabilities) ||
1857 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1858 capab->extended_capabilities_len,
1859 capab->extended_capabilities_mask))
1860 goto nla_put_failure;
1862 nla_nest_end(msg, nested_ext_capab);
1866 nla_nest_end(msg, nested);
1867 if (i < rdev->wiphy.num_iftype_ext_capab) {
1868 state->capa_start = i + 1;
1873 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
1874 rdev->wiphy.nan_supported_bands))
1875 goto nla_put_failure;
1878 state->split_start = 0;
1882 genlmsg_end(msg, hdr);
1886 genlmsg_cancel(msg, hdr);
1890 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1891 struct netlink_callback *cb,
1892 struct nl80211_dump_wiphy_state *state)
1894 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
1895 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1896 tb, nl80211_fam.maxattr, nl80211_policy);
1897 /* ignore parse errors for backward compatibility */
1901 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1902 if (tb[NL80211_ATTR_WIPHY])
1903 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1904 if (tb[NL80211_ATTR_WDEV])
1905 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1906 if (tb[NL80211_ATTR_IFINDEX]) {
1907 struct net_device *netdev;
1908 struct cfg80211_registered_device *rdev;
1909 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1911 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1914 if (netdev->ieee80211_ptr) {
1915 rdev = wiphy_to_rdev(
1916 netdev->ieee80211_ptr->wiphy);
1917 state->filter_wiphy = rdev->wiphy_idx;
1924 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1927 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1928 struct cfg80211_registered_device *rdev;
1932 state = kzalloc(sizeof(*state), GFP_KERNEL);
1937 state->filter_wiphy = -1;
1938 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1944 cb->args[0] = (long)state;
1947 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1948 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1950 if (++idx <= state->start)
1952 if (state->filter_wiphy != -1 &&
1953 state->filter_wiphy != rdev->wiphy_idx)
1955 /* attempt to fit multiple wiphy data chunks into the skb */
1957 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1959 NETLINK_CB(cb->skb).portid,
1961 NLM_F_MULTI, state);
1964 * If sending the wiphy data didn't fit (ENOBUFS
1965 * or EMSGSIZE returned), this SKB is still
1966 * empty (so it's not too big because another
1967 * wiphy dataset is already in the skb) and
1968 * we've not tried to adjust the dump allocation
1969 * yet ... then adjust the alloc size to be
1970 * bigger, and return 1 but with the empty skb.
1971 * This results in an empty message being RX'ed
1972 * in userspace, but that is ignored.
1974 * We can then retry with the larger buffer.
1976 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1977 !skb->len && !state->split &&
1978 cb->min_dump_alloc < 4096) {
1979 cb->min_dump_alloc = 4096;
1980 state->split_start = 0;
1987 } while (state->split_start > 0);
1997 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1999 kfree((void *)cb->args[0]);
2003 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2005 struct sk_buff *msg;
2006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2007 struct nl80211_dump_wiphy_state state = {};
2009 msg = nlmsg_new(4096, GFP_KERNEL);
2013 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2014 info->snd_portid, info->snd_seq, 0,
2020 return genlmsg_reply(msg, info);
2023 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2024 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2025 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2026 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2027 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2028 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2031 static int parse_txq_params(struct nlattr *tb[],
2032 struct ieee80211_txq_params *txq_params)
2034 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
2035 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2036 !tb[NL80211_TXQ_ATTR_AIFS])
2039 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
2040 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2041 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2042 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2043 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2045 if (txq_params->ac >= NL80211_NUM_ACS)
2051 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2054 * You can only set the channel explicitly for WDS interfaces,
2055 * all others have their channel managed via their respective
2056 * "establish a connection" command (connect, join, ...)
2058 * For AP/GO and mesh mode, the channel can be set with the
2059 * channel userspace API, but is only stored and passed to the
2060 * low-level driver when the AP starts or the mesh is joined.
2061 * This is for backward compatibility, userspace can also give
2062 * the channel in the start-ap or join-mesh commands instead.
2064 * Monitors are special as they are normally slaved to
2065 * whatever else is going on, so they have their own special
2066 * operation to set the monitor channel if possible.
2069 wdev->iftype == NL80211_IFTYPE_AP ||
2070 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
2071 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2072 wdev->iftype == NL80211_IFTYPE_P2P_GO;
2075 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2076 struct genl_info *info,
2077 struct cfg80211_chan_def *chandef)
2081 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2084 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2086 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
2087 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2088 chandef->center_freq1 = control_freq;
2089 chandef->center_freq2 = 0;
2091 /* Primary channel not allowed */
2092 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2095 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2096 enum nl80211_channel_type chantype;
2098 chantype = nla_get_u32(
2099 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2102 case NL80211_CHAN_NO_HT:
2103 case NL80211_CHAN_HT20:
2104 case NL80211_CHAN_HT40PLUS:
2105 case NL80211_CHAN_HT40MINUS:
2106 cfg80211_chandef_create(chandef, chandef->chan,
2112 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2114 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2115 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2116 chandef->center_freq1 =
2118 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2119 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2120 chandef->center_freq2 =
2122 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2125 if (!cfg80211_chandef_valid(chandef))
2128 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2129 IEEE80211_CHAN_DISABLED))
2132 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2133 chandef->width == NL80211_CHAN_WIDTH_10) &&
2134 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2140 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2141 struct net_device *dev,
2142 struct genl_info *info)
2144 struct cfg80211_chan_def chandef;
2146 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2147 struct wireless_dev *wdev = NULL;
2150 wdev = dev->ieee80211_ptr;
2151 if (!nl80211_can_set_dev_channel(wdev))
2154 iftype = wdev->iftype;
2156 result = nl80211_parse_chandef(rdev, info, &chandef);
2161 case NL80211_IFTYPE_AP:
2162 case NL80211_IFTYPE_P2P_GO:
2163 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2168 if (wdev->beacon_interval) {
2169 if (!dev || !rdev->ops->set_ap_chanwidth ||
2170 !(rdev->wiphy.features &
2171 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2176 /* Only allow dynamic channel width changes */
2177 if (chandef.chan != wdev->preset_chandef.chan) {
2181 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2185 wdev->preset_chandef = chandef;
2188 case NL80211_IFTYPE_MESH_POINT:
2189 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2191 case NL80211_IFTYPE_MONITOR:
2192 result = cfg80211_set_monitor_channel(rdev, &chandef);
2201 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2204 struct net_device *netdev = info->user_ptr[1];
2206 return __nl80211_set_channel(rdev, netdev, info);
2209 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2212 struct net_device *dev = info->user_ptr[1];
2213 struct wireless_dev *wdev = dev->ieee80211_ptr;
2216 if (!info->attrs[NL80211_ATTR_MAC])
2219 if (netif_running(dev))
2222 if (!rdev->ops->set_wds_peer)
2225 if (wdev->iftype != NL80211_IFTYPE_WDS)
2228 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2229 return rdev_set_wds_peer(rdev, dev, bssid);
2232 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2234 struct cfg80211_registered_device *rdev;
2235 struct net_device *netdev = NULL;
2236 struct wireless_dev *wdev;
2237 int result = 0, rem_txq_params = 0;
2238 struct nlattr *nl_txq_params;
2240 u8 retry_short = 0, retry_long = 0;
2241 u32 frag_threshold = 0, rts_threshold = 0;
2242 u8 coverage_class = 0;
2247 * Try to find the wiphy and netdev. Normally this
2248 * function shouldn't need the netdev, but this is
2249 * done for backward compatibility -- previously
2250 * setting the channel was done per wiphy, but now
2251 * it is per netdev. Previous userland like hostapd
2252 * also passed a netdev to set_wiphy, so that it is
2253 * possible to let that go to the right netdev!
2256 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2257 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2259 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2260 if (netdev && netdev->ieee80211_ptr)
2261 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2267 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2270 return PTR_ERR(rdev);
2275 wdev = netdev->ieee80211_ptr;
2278 * end workaround code, by now the rdev is available
2279 * and locked, and wdev may or may not be NULL.
2282 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2283 result = cfg80211_dev_rename(
2284 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2289 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2290 struct ieee80211_txq_params txq_params;
2291 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2293 if (!rdev->ops->set_txq_params)
2299 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2300 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2303 if (!netif_running(netdev))
2306 nla_for_each_nested(nl_txq_params,
2307 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2309 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2314 result = parse_txq_params(tb, &txq_params);
2318 result = rdev_set_txq_params(rdev, netdev,
2325 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2326 result = __nl80211_set_channel(
2328 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2334 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2335 struct wireless_dev *txp_wdev = wdev;
2336 enum nl80211_tx_power_setting type;
2339 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2342 if (!rdev->ops->set_tx_power)
2345 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2346 type = nla_get_u32(info->attrs[idx]);
2348 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2349 (type != NL80211_TX_POWER_AUTOMATIC))
2352 if (type != NL80211_TX_POWER_AUTOMATIC) {
2353 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2354 mbm = nla_get_u32(info->attrs[idx]);
2357 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2362 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2363 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2366 if ((!rdev->wiphy.available_antennas_tx &&
2367 !rdev->wiphy.available_antennas_rx) ||
2368 !rdev->ops->set_antenna)
2371 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2372 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2374 /* reject antenna configurations which don't match the
2375 * available antenna masks, except for the "all" mask */
2376 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2377 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2380 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2381 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2383 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2390 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2391 retry_short = nla_get_u8(
2392 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2393 if (retry_short == 0)
2396 changed |= WIPHY_PARAM_RETRY_SHORT;
2399 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2400 retry_long = nla_get_u8(
2401 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2402 if (retry_long == 0)
2405 changed |= WIPHY_PARAM_RETRY_LONG;
2408 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2409 frag_threshold = nla_get_u32(
2410 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2411 if (frag_threshold < 256)
2414 if (frag_threshold != (u32) -1) {
2416 * Fragments (apart from the last one) are required to
2417 * have even length. Make the fragmentation code
2418 * simpler by stripping LSB should someone try to use
2419 * odd threshold value.
2421 frag_threshold &= ~0x1;
2423 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2426 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2427 rts_threshold = nla_get_u32(
2428 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2429 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2432 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2433 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2436 coverage_class = nla_get_u8(
2437 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2438 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2441 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2442 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2445 changed |= WIPHY_PARAM_DYN_ACK;
2449 u8 old_retry_short, old_retry_long;
2450 u32 old_frag_threshold, old_rts_threshold;
2451 u8 old_coverage_class;
2453 if (!rdev->ops->set_wiphy_params)
2456 old_retry_short = rdev->wiphy.retry_short;
2457 old_retry_long = rdev->wiphy.retry_long;
2458 old_frag_threshold = rdev->wiphy.frag_threshold;
2459 old_rts_threshold = rdev->wiphy.rts_threshold;
2460 old_coverage_class = rdev->wiphy.coverage_class;
2462 if (changed & WIPHY_PARAM_RETRY_SHORT)
2463 rdev->wiphy.retry_short = retry_short;
2464 if (changed & WIPHY_PARAM_RETRY_LONG)
2465 rdev->wiphy.retry_long = retry_long;
2466 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2467 rdev->wiphy.frag_threshold = frag_threshold;
2468 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2469 rdev->wiphy.rts_threshold = rts_threshold;
2470 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2471 rdev->wiphy.coverage_class = coverage_class;
2473 result = rdev_set_wiphy_params(rdev, changed);
2475 rdev->wiphy.retry_short = old_retry_short;
2476 rdev->wiphy.retry_long = old_retry_long;
2477 rdev->wiphy.frag_threshold = old_frag_threshold;
2478 rdev->wiphy.rts_threshold = old_rts_threshold;
2479 rdev->wiphy.coverage_class = old_coverage_class;
2486 static inline u64 wdev_id(struct wireless_dev *wdev)
2488 return (u64)wdev->identifier |
2489 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2492 static int nl80211_send_chandef(struct sk_buff *msg,
2493 const struct cfg80211_chan_def *chandef)
2495 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2498 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2499 chandef->chan->center_freq))
2501 switch (chandef->width) {
2502 case NL80211_CHAN_WIDTH_20_NOHT:
2503 case NL80211_CHAN_WIDTH_20:
2504 case NL80211_CHAN_WIDTH_40:
2505 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2506 cfg80211_get_chandef_type(chandef)))
2512 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2514 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2516 if (chandef->center_freq2 &&
2517 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2522 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2523 struct cfg80211_registered_device *rdev,
2524 struct wireless_dev *wdev, bool removal)
2526 struct net_device *dev = wdev->netdev;
2527 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2531 cmd = NL80211_CMD_DEL_INTERFACE;
2533 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2538 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2539 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2540 goto nla_put_failure;
2542 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2543 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2544 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2545 NL80211_ATTR_PAD) ||
2546 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2547 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2548 rdev->devlist_generation ^
2549 (cfg80211_rdev_list_generation << 2)))
2550 goto nla_put_failure;
2552 if (rdev->ops->get_channel) {
2554 struct cfg80211_chan_def chandef;
2556 ret = rdev_get_channel(rdev, wdev, &chandef);
2558 if (nl80211_send_chandef(msg, &chandef))
2559 goto nla_put_failure;
2563 if (rdev->ops->get_tx_power) {
2566 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2568 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2570 goto nla_put_failure;
2573 if (wdev->ssid_len) {
2574 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2575 goto nla_put_failure;
2578 genlmsg_end(msg, hdr);
2582 genlmsg_cancel(msg, hdr);
2586 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2590 int wp_start = cb->args[0];
2591 int if_start = cb->args[1];
2592 int filter_wiphy = -1;
2593 struct cfg80211_registered_device *rdev;
2594 struct wireless_dev *wdev;
2599 struct nl80211_dump_wiphy_state state = {
2603 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2607 filter_wiphy = state.filter_wiphy;
2610 * if filtering, set cb->args[2] to +1 since 0 is the default
2611 * value needed to determine that parsing is necessary.
2613 if (filter_wiphy >= 0)
2614 cb->args[2] = filter_wiphy + 1;
2617 } else if (cb->args[2] > 0) {
2618 filter_wiphy = cb->args[2] - 1;
2621 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2622 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2624 if (wp_idx < wp_start) {
2629 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2634 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
2635 if (if_idx < if_start) {
2639 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2640 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2641 rdev, wdev, false) < 0) {
2650 cb->args[0] = wp_idx;
2651 cb->args[1] = if_idx;
2660 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2662 struct sk_buff *msg;
2663 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2664 struct wireless_dev *wdev = info->user_ptr[1];
2666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2670 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2671 rdev, wdev, false) < 0) {
2676 return genlmsg_reply(msg, info);
2679 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2680 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2681 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2682 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2683 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2684 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2685 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2688 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2690 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2698 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2699 nla, mntr_flags_policy))
2702 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2704 *mntrflags |= (1<<flag);
2709 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2710 struct net_device *netdev, u8 use_4addr,
2711 enum nl80211_iftype iftype)
2714 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2720 case NL80211_IFTYPE_AP_VLAN:
2721 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2724 case NL80211_IFTYPE_STATION:
2725 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2735 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2738 struct vif_params params;
2740 enum nl80211_iftype otype, ntype;
2741 struct net_device *dev = info->user_ptr[1];
2742 u32 _flags, *flags = NULL;
2743 bool change = false;
2745 memset(¶ms, 0, sizeof(params));
2747 otype = ntype = dev->ieee80211_ptr->iftype;
2749 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2750 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2753 if (ntype > NL80211_IFTYPE_MAX)
2757 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2758 struct wireless_dev *wdev = dev->ieee80211_ptr;
2760 if (ntype != NL80211_IFTYPE_MESH_POINT)
2762 if (netif_running(dev))
2766 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2767 IEEE80211_MAX_MESH_ID_LEN);
2768 wdev->mesh_id_up_len =
2769 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2770 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2771 wdev->mesh_id_up_len);
2775 if (info->attrs[NL80211_ATTR_4ADDR]) {
2776 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2778 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2782 params.use_4addr = -1;
2785 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2786 if (ntype != NL80211_IFTYPE_MONITOR)
2788 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2797 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2798 const u8 *mumimo_groups;
2799 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2801 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2805 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2807 /* bits 0 and 63 are reserved and must be zero */
2808 if ((mumimo_groups[0] & BIT(7)) ||
2809 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2812 memcpy(params.vht_mumimo_groups, mumimo_groups,
2813 VHT_MUMIMO_GROUPS_DATA_LEN);
2817 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2818 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2820 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2823 nla_memcpy(params.macaddr,
2824 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2829 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2830 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2834 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2838 if (!err && params.use_4addr != -1)
2839 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2844 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2846 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2847 struct vif_params params;
2848 struct wireless_dev *wdev;
2849 struct sk_buff *msg;
2851 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2854 /* to avoid failing a new interface creation due to pending removal */
2855 cfg80211_destroy_ifaces(rdev);
2857 memset(¶ms, 0, sizeof(params));
2859 if (!info->attrs[NL80211_ATTR_IFNAME])
2862 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2863 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2864 if (type > NL80211_IFTYPE_MAX)
2868 if (!rdev->ops->add_virtual_intf ||
2869 !(rdev->wiphy.interface_modes & (1 << type)))
2872 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
2873 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2874 info->attrs[NL80211_ATTR_MAC]) {
2875 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2877 if (!is_valid_ether_addr(params.macaddr))
2878 return -EADDRNOTAVAIL;
2881 if (info->attrs[NL80211_ATTR_4ADDR]) {
2882 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2883 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2888 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2889 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2892 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2893 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2896 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2900 wdev = rdev_add_virtual_intf(rdev,
2901 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2902 NET_NAME_USER, type, err ? NULL : &flags,
2904 if (WARN_ON(!wdev)) {
2907 } else if (IS_ERR(wdev)) {
2909 return PTR_ERR(wdev);
2912 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2913 wdev->owner_nlportid = info->snd_portid;
2916 case NL80211_IFTYPE_MESH_POINT:
2917 if (!info->attrs[NL80211_ATTR_MESH_ID])
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);
2928 case NL80211_IFTYPE_NAN:
2929 case NL80211_IFTYPE_P2P_DEVICE:
2931 * P2P Device and NAN do not have a netdev, so don't go
2932 * through the netdev notifier and must be added here
2934 mutex_init(&wdev->mtx);
2935 INIT_LIST_HEAD(&wdev->event_list);
2936 spin_lock_init(&wdev->event_lock);
2937 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2938 spin_lock_init(&wdev->mgmt_registrations_lock);
2940 wdev->identifier = ++rdev->wdev_id;
2941 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
2942 rdev->devlist_generation++;
2948 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2949 rdev, wdev, false) < 0) {
2955 * For wdevs which have no associated netdev object (e.g. of type
2956 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2957 * For all other types, the event will be generated from the
2961 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
2963 return genlmsg_reply(msg, info);
2966 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2969 struct wireless_dev *wdev = info->user_ptr[1];
2971 if (!rdev->ops->del_virtual_intf)
2975 * If we remove a wireless device without a netdev then clear
2976 * user_ptr[1] so that nl80211_post_doit won't dereference it
2977 * to check if it needs to do dev_put(). Otherwise it crashes
2978 * since the wdev has been freed, unlike with a netdev where
2979 * we need the dev_put() for the netdev to really be freed.
2982 info->user_ptr[1] = NULL;
2984 return rdev_del_virtual_intf(rdev, wdev);
2987 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2990 struct net_device *dev = info->user_ptr[1];
2993 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2996 if (!rdev->ops->set_noack_map)
2999 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3001 return rdev_set_noack_map(rdev, dev, noack_map);
3004 struct get_key_cookie {
3005 struct sk_buff *msg;
3010 static void get_key_callback(void *c, struct key_params *params)
3013 struct get_key_cookie *cookie = c;
3016 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3017 params->key_len, params->key)) ||
3019 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3020 params->seq_len, params->seq)) ||
3022 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3024 goto nla_put_failure;
3026 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3028 goto nla_put_failure;
3031 nla_put(cookie->msg, NL80211_KEY_DATA,
3032 params->key_len, params->key)) ||
3034 nla_put(cookie->msg, NL80211_KEY_SEQ,
3035 params->seq_len, params->seq)) ||
3037 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3039 goto nla_put_failure;
3041 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3042 goto nla_put_failure;
3044 nla_nest_end(cookie->msg, key);
3051 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3055 struct net_device *dev = info->user_ptr[1];
3057 const u8 *mac_addr = NULL;
3059 struct get_key_cookie cookie = {
3063 struct sk_buff *msg;
3065 if (info->attrs[NL80211_ATTR_KEY_IDX])
3066 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3071 if (info->attrs[NL80211_ATTR_MAC])
3072 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3074 pairwise = !!mac_addr;
3075 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3076 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
3078 if (kt >= NUM_NL80211_KEYTYPES)
3080 if (kt != NL80211_KEYTYPE_GROUP &&
3081 kt != NL80211_KEYTYPE_PAIRWISE)
3083 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3086 if (!rdev->ops->get_key)
3089 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3096 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3097 NL80211_CMD_NEW_KEY);
3099 goto nla_put_failure;
3102 cookie.idx = key_idx;
3104 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3105 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3106 goto nla_put_failure;
3108 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3109 goto nla_put_failure;
3111 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3118 goto nla_put_failure;
3120 genlmsg_end(msg, hdr);
3121 return genlmsg_reply(msg, info);
3130 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3133 struct key_parse key;
3135 struct net_device *dev = info->user_ptr[1];
3137 err = nl80211_parse_key(info, &key);
3144 /* only support setting default key */
3145 if (!key.def && !key.defmgmt)
3148 wdev_lock(dev->ieee80211_ptr);
3151 if (!rdev->ops->set_default_key) {
3156 err = nl80211_key_allowed(dev->ieee80211_ptr);
3160 err = rdev_set_default_key(rdev, dev, key.idx,
3161 key.def_uni, key.def_multi);
3166 #ifdef CONFIG_CFG80211_WEXT
3167 dev->ieee80211_ptr->wext.default_key = key.idx;
3170 if (key.def_uni || !key.def_multi) {
3175 if (!rdev->ops->set_default_mgmt_key) {
3180 err = nl80211_key_allowed(dev->ieee80211_ptr);
3184 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3188 #ifdef CONFIG_CFG80211_WEXT
3189 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3194 wdev_unlock(dev->ieee80211_ptr);
3199 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3203 struct net_device *dev = info->user_ptr[1];
3204 struct key_parse key;
3205 const u8 *mac_addr = NULL;
3207 err = nl80211_parse_key(info, &key);
3214 if (info->attrs[NL80211_ATTR_MAC])
3215 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3217 if (key.type == -1) {
3219 key.type = NL80211_KEYTYPE_PAIRWISE;
3221 key.type = NL80211_KEYTYPE_GROUP;
3225 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3226 key.type != NL80211_KEYTYPE_GROUP)
3229 if (!rdev->ops->add_key)
3232 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3233 key.type == NL80211_KEYTYPE_PAIRWISE,
3237 wdev_lock(dev->ieee80211_ptr);
3238 err = nl80211_key_allowed(dev->ieee80211_ptr);
3240 err = rdev_add_key(rdev, dev, key.idx,
3241 key.type == NL80211_KEYTYPE_PAIRWISE,
3243 wdev_unlock(dev->ieee80211_ptr);
3248 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3252 struct net_device *dev = info->user_ptr[1];
3253 u8 *mac_addr = NULL;
3254 struct key_parse key;
3256 err = nl80211_parse_key(info, &key);
3260 if (info->attrs[NL80211_ATTR_MAC])
3261 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3263 if (key.type == -1) {
3265 key.type = NL80211_KEYTYPE_PAIRWISE;
3267 key.type = NL80211_KEYTYPE_GROUP;
3271 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3272 key.type != NL80211_KEYTYPE_GROUP)
3275 if (!rdev->ops->del_key)
3278 wdev_lock(dev->ieee80211_ptr);
3279 err = nl80211_key_allowed(dev->ieee80211_ptr);
3281 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3282 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3286 err = rdev_del_key(rdev, dev, key.idx,
3287 key.type == NL80211_KEYTYPE_PAIRWISE,
3290 #ifdef CONFIG_CFG80211_WEXT
3292 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3293 dev->ieee80211_ptr->wext.default_key = -1;
3294 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3295 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3298 wdev_unlock(dev->ieee80211_ptr);
3303 /* This function returns an error or the number of nested attributes */
3304 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3306 struct nlattr *attr;
3307 int n_entries = 0, tmp;
3309 nla_for_each_nested(attr, nl_attr, tmp) {
3310 if (nla_len(attr) != ETH_ALEN)
3320 * This function parses ACL information and allocates memory for ACL data.
3321 * On successful return, the calling function is responsible to free the
3322 * ACL buffer returned by this function.
3324 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3325 struct genl_info *info)
3327 enum nl80211_acl_policy acl_policy;
3328 struct nlattr *attr;
3329 struct cfg80211_acl_data *acl;
3330 int i = 0, n_entries, tmp;
3332 if (!wiphy->max_acl_mac_addrs)
3333 return ERR_PTR(-EOPNOTSUPP);
3335 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3336 return ERR_PTR(-EINVAL);
3338 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3339 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3340 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3341 return ERR_PTR(-EINVAL);
3343 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3344 return ERR_PTR(-EINVAL);
3346 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3348 return ERR_PTR(n_entries);
3350 if (n_entries > wiphy->max_acl_mac_addrs)
3351 return ERR_PTR(-ENOTSUPP);
3353 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3356 return ERR_PTR(-ENOMEM);
3358 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3359 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3363 acl->n_acl_entries = n_entries;
3364 acl->acl_policy = acl_policy;
3369 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3371 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3372 struct net_device *dev = info->user_ptr[1];
3373 struct cfg80211_acl_data *acl;
3376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3377 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3380 if (!dev->ieee80211_ptr->beacon_interval)
3383 acl = parse_acl_data(&rdev->wiphy, info);
3385 return PTR_ERR(acl);
3387 err = rdev_set_mac_acl(rdev, dev, acl);
3394 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3395 u8 *rates, u8 rates_len)
3400 for (i = 0; i < rates_len; i++) {
3401 int rate = (rates[i] & 0x7f) * 5;
3404 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3405 struct ieee80211_rate *srate =
3406 &sband->bitrates[ridx];
3407 if (rate == srate->bitrate) {
3412 if (ridx == sband->n_bitrates)
3413 return 0; /* rate not found */
3419 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3420 u8 *rates, u8 rates_len,
3421 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3425 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3427 for (i = 0; i < rates_len; i++) {
3430 ridx = rates[i] / 8;
3431 rbit = BIT(rates[i] % 8);
3433 /* check validity */
3434 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3437 /* check availability */
3438 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3447 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3451 switch (vht_mcs_map) {
3452 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3454 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3457 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3460 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3470 static void vht_build_mcs_mask(u16 vht_mcs_map,
3471 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3475 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3476 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3481 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3482 struct nl80211_txrate_vht *txrate,
3483 u16 mcs[NL80211_VHT_NSS_MAX])
3485 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3486 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3489 if (!sband->vht_cap.vht_supported)
3492 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3494 /* Build vht_mcs_mask from VHT capabilities */
3495 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3497 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3498 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3499 mcs[i] = txrate->mcs[i];
3507 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3508 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3509 .len = NL80211_MAX_SUPP_RATES },
3510 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3511 .len = NL80211_MAX_SUPP_HT_RATES },
3512 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3513 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3516 static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3517 struct cfg80211_bitrate_mask *mask)
3519 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3522 struct nlattr *tx_rates;
3523 struct ieee80211_supported_band *sband;
3526 memset(mask, 0, sizeof(*mask));
3527 /* Default to all rates enabled */
3528 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3529 sband = rdev->wiphy.bands[i];
3534 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3535 memcpy(mask->control[i].ht_mcs,
3536 sband->ht_cap.mcs.rx_mask,
3537 sizeof(mask->control[i].ht_mcs));
3539 if (!sband->vht_cap.vht_supported)
3542 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3543 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3546 /* if no rates are given set it back to the defaults */
3547 if (!info->attrs[NL80211_ATTR_TX_RATES])
3550 /* The nested attribute uses enum nl80211_band as the index. This maps
3551 * directly to the enum nl80211_band values used in cfg80211.
3553 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3554 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3555 enum nl80211_band band = nla_type(tx_rates);
3558 if (band < 0 || band >= NUM_NL80211_BANDS)
3560 sband = rdev->wiphy.bands[band];
3563 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
3564 nl80211_txattr_policy);
3567 if (tb[NL80211_TXRATE_LEGACY]) {
3568 mask->control[band].legacy = rateset_to_mask(
3570 nla_data(tb[NL80211_TXRATE_LEGACY]),
3571 nla_len(tb[NL80211_TXRATE_LEGACY]));
3572 if ((mask->control[band].legacy == 0) &&
3573 nla_len(tb[NL80211_TXRATE_LEGACY]))
3576 if (tb[NL80211_TXRATE_HT]) {
3577 if (!ht_rateset_to_mask(
3579 nla_data(tb[NL80211_TXRATE_HT]),
3580 nla_len(tb[NL80211_TXRATE_HT]),
3581 mask->control[band].ht_mcs))
3584 if (tb[NL80211_TXRATE_VHT]) {
3585 if (!vht_set_mcs_mask(
3587 nla_data(tb[NL80211_TXRATE_VHT]),
3588 mask->control[band].vht_mcs))
3591 if (tb[NL80211_TXRATE_GI]) {
3592 mask->control[band].gi =
3593 nla_get_u8(tb[NL80211_TXRATE_GI]);
3594 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3598 if (mask->control[band].legacy == 0) {
3599 /* don't allow empty legacy rates if HT or VHT
3600 * are not even supported.
3602 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3603 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3606 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3607 if (mask->control[band].ht_mcs[i])
3610 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3611 if (mask->control[band].vht_mcs[i])
3614 /* legacy and mcs rates may not be both empty */
3623 static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3624 enum nl80211_band band,
3625 struct cfg80211_bitrate_mask *beacon_rate)
3627 u32 count_ht, count_vht, i;
3628 u32 rate = beacon_rate->control[band].legacy;
3630 /* Allow only one rate */
3631 if (hweight32(rate) > 1)
3635 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3636 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
3638 } else if (beacon_rate->control[band].ht_mcs[i]) {
3643 if (count_ht && rate)
3648 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3649 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
3651 } else if (beacon_rate->control[band].vht_mcs[i]) {
3656 if (count_vht && rate)
3660 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3664 !wiphy_ext_feature_isset(&rdev->wiphy,
3665 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3668 !wiphy_ext_feature_isset(&rdev->wiphy,
3669 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3672 !wiphy_ext_feature_isset(&rdev->wiphy,
3673 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3679 static int nl80211_parse_beacon(struct nlattr *attrs[],
3680 struct cfg80211_beacon_data *bcn)
3682 bool haveinfo = false;
3684 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3685 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3686 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3687 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3690 memset(bcn, 0, sizeof(*bcn));
3692 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3693 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3694 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3700 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3701 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3702 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3709 if (attrs[NL80211_ATTR_IE]) {
3710 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3711 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3714 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3715 bcn->proberesp_ies =
3716 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3717 bcn->proberesp_ies_len =
3718 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3721 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3722 bcn->assocresp_ies =
3723 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3724 bcn->assocresp_ies_len =
3725 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3728 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3729 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3730 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3736 static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3744 for (i = 0; i < rates[1]; i++) {
3745 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3746 params->ht_required = true;
3747 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3748 params->vht_required = true;
3753 * Since the nl80211 API didn't include, from the beginning, attributes about
3754 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3755 * benefit of drivers that rebuild IEs in the firmware.
3757 static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3759 const struct cfg80211_beacon_data *bcn = ¶ms->beacon;
3760 size_t ies_len = bcn->beacon_ies_len;
3761 const u8 *ies = bcn->beacon_ies;
3765 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3766 nl80211_check_ap_rate_selectors(params, rates);
3768 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3769 nl80211_check_ap_rate_selectors(params, rates);
3771 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3772 if (cap && cap[1] >= sizeof(*params->ht_cap))
3773 params->ht_cap = (void *)(cap + 2);
3774 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3775 if (cap && cap[1] >= sizeof(*params->vht_cap))
3776 params->vht_cap = (void *)(cap + 2);
3779 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3780 struct cfg80211_ap_settings *params)
3782 struct wireless_dev *wdev;
3785 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
3786 if (wdev->iftype != NL80211_IFTYPE_AP &&
3787 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3790 if (!wdev->preset_chandef.chan)
3793 params->chandef = wdev->preset_chandef;
3801 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3802 enum nl80211_auth_type auth_type,
3803 enum nl80211_commands cmd)
3805 if (auth_type > NL80211_AUTHTYPE_MAX)
3809 case NL80211_CMD_AUTHENTICATE:
3810 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3811 auth_type == NL80211_AUTHTYPE_SAE)
3813 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3814 NL80211_EXT_FEATURE_FILS_STA) &&
3815 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3816 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3817 auth_type == NL80211_AUTHTYPE_FILS_PK))
3820 case NL80211_CMD_CONNECT:
3821 case NL80211_CMD_START_AP:
3822 /* SAE not supported yet */
3823 if (auth_type == NL80211_AUTHTYPE_SAE)
3825 /* FILS not supported yet */
3826 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3827 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3828 auth_type == NL80211_AUTHTYPE_FILS_PK)
3836 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3839 struct net_device *dev = info->user_ptr[1];
3840 struct wireless_dev *wdev = dev->ieee80211_ptr;
3841 struct cfg80211_ap_settings params;
3844 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3845 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3848 if (!rdev->ops->start_ap)
3851 if (wdev->beacon_interval)
3854 memset(¶ms, 0, sizeof(params));
3856 /* these are required for START_AP */
3857 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3858 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3859 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3862 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3866 params.beacon_interval =
3867 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3868 params.dtim_period =
3869 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3871 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3872 params.beacon_interval);
3877 * In theory, some of these attributes should be required here
3878 * but since they were not used when the command was originally
3879 * added, keep them optional for old user space programs to let
3880 * them continue to work with drivers that do not need the
3881 * additional information -- drivers must check!
3883 if (info->attrs[NL80211_ATTR_SSID]) {
3884 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3886 nla_len(info->attrs[NL80211_ATTR_SSID]);
3887 if (params.ssid_len == 0 ||
3888 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3892 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3893 params.hidden_ssid = nla_get_u32(
3894 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3895 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3896 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3897 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3901 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3903 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3904 params.auth_type = nla_get_u32(
3905 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3906 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3907 NL80211_CMD_START_AP))
3910 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3912 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3913 NL80211_MAX_NR_CIPHER_SUITES);
3917 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3918 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3920 params.inactivity_timeout = nla_get_u16(
3921 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3924 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3925 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3927 params.p2p_ctwindow =
3928 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3929 if (params.p2p_ctwindow > 127)
3931 if (params.p2p_ctwindow != 0 &&
3932 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3936 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3939 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3941 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3944 params.p2p_opp_ps = tmp;
3945 if (params.p2p_opp_ps != 0 &&
3946 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3950 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3951 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3954 } else if (wdev->preset_chandef.chan) {
3955 params.chandef = wdev->preset_chandef;
3956 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3959 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3963 if (info->attrs[NL80211_ATTR_TX_RATES]) {
3964 err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate);
3968 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
3969 ¶ms.beacon_rate);
3974 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3976 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3977 switch (params.smps_mode) {
3978 case NL80211_SMPS_OFF:
3980 case NL80211_SMPS_STATIC:
3981 if (!(rdev->wiphy.features &
3982 NL80211_FEATURE_STATIC_SMPS))
3985 case NL80211_SMPS_DYNAMIC:
3986 if (!(rdev->wiphy.features &
3987 NL80211_FEATURE_DYNAMIC_SMPS))
3994 params.smps_mode = NL80211_SMPS_OFF;
3997 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3998 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4001 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4002 params.acl = parse_acl_data(&rdev->wiphy, info);
4003 if (IS_ERR(params.acl))
4004 return PTR_ERR(params.acl);
4007 nl80211_calculate_ap_params(¶ms);
4010 err = rdev_start_ap(rdev, dev, ¶ms);
4012 wdev->preset_chandef = params.chandef;
4013 wdev->beacon_interval = params.beacon_interval;
4014 wdev->chandef = params.chandef;
4015 wdev->ssid_len = params.ssid_len;
4016 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
4025 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4028 struct net_device *dev = info->user_ptr[1];
4029 struct wireless_dev *wdev = dev->ieee80211_ptr;
4030 struct cfg80211_beacon_data params;
4033 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4034 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4037 if (!rdev->ops->change_beacon)
4040 if (!wdev->beacon_interval)
4043 err = nl80211_parse_beacon(info->attrs, ¶ms);
4048 err = rdev_change_beacon(rdev, dev, ¶ms);
4054 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
4056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4057 struct net_device *dev = info->user_ptr[1];
4059 return cfg80211_stop_ap(rdev, dev, false);
4062 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4063 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4064 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4065 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
4066 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
4067 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
4068 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
4071 static int parse_station_flags(struct genl_info *info,
4072 enum nl80211_iftype iftype,
4073 struct station_parameters *params)
4075 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
4080 * Try parsing the new attribute first so userspace
4081 * can specify both for older kernels.
4083 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4085 struct nl80211_sta_flag_update *sta_flags;
4087 sta_flags = nla_data(nla);
4088 params->sta_flags_mask = sta_flags->mask;
4089 params->sta_flags_set = sta_flags->set;
4090 params->sta_flags_set &= params->sta_flags_mask;
4091 if ((params->sta_flags_mask |
4092 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4097 /* if present, parse the old attribute */
4099 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
4103 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
4104 nla, sta_flags_policy))
4108 * Only allow certain flags for interface types so that
4109 * other attributes are silently ignored. Remember that
4110 * this is backward compatibility code with old userspace
4111 * and shouldn't be hit in other cases anyway.
4114 case NL80211_IFTYPE_AP:
4115 case NL80211_IFTYPE_AP_VLAN:
4116 case NL80211_IFTYPE_P2P_GO:
4117 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4118 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4119 BIT(NL80211_STA_FLAG_WME) |
4120 BIT(NL80211_STA_FLAG_MFP);
4122 case NL80211_IFTYPE_P2P_CLIENT:
4123 case NL80211_IFTYPE_STATION:
4124 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4125 BIT(NL80211_STA_FLAG_TDLS_PEER);
4127 case NL80211_IFTYPE_MESH_POINT:
4128 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4129 BIT(NL80211_STA_FLAG_MFP) |
4130 BIT(NL80211_STA_FLAG_AUTHORIZED);
4135 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4137 params->sta_flags_set |= (1<<flag);
4139 /* no longer support new API additions in old API */
4140 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4148 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4151 struct nlattr *rate;
4154 enum nl80211_attrs rate_flg;
4156 rate = nla_nest_start(msg, attr);
4160 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4161 bitrate = cfg80211_calculate_bitrate(info);
4162 /* report 16-bit bitrate only if we can */
4163 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
4165 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4167 if (bitrate_compat > 0 &&
4168 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4172 case RATE_INFO_BW_5:
4173 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4175 case RATE_INFO_BW_10:
4176 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4181 case RATE_INFO_BW_20:
4184 case RATE_INFO_BW_40:
4185 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4187 case RATE_INFO_BW_80:
4188 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4190 case RATE_INFO_BW_160:
4191 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4195 if (rate_flg && nla_put_flag(msg, rate_flg))
4198 if (info->flags & RATE_INFO_FLAGS_MCS) {
4199 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4201 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4202 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4204 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4205 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4207 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4209 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4210 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4214 nla_nest_end(msg, rate);
4218 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4227 attr = nla_nest_start(msg, id);
4231 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4232 if (!(mask & BIT(i)))
4235 if (nla_put_u8(msg, i, signal[i]))
4239 nla_nest_end(msg, attr);
4244 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4246 struct cfg80211_registered_device *rdev,
4247 struct net_device *dev,
4248 const u8 *mac_addr, struct station_info *sinfo)
4251 struct nlattr *sinfoattr, *bss_param;
4253 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
4257 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4258 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4259 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4260 goto nla_put_failure;
4262 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4264 goto nla_put_failure;
4266 #define PUT_SINFO(attr, memb, type) do { \
4267 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
4268 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4269 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4271 goto nla_put_failure; \
4273 #define PUT_SINFO_U64(attr, memb) do { \
4274 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4275 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4276 sinfo->memb, NL80211_STA_INFO_PAD)) \
4277 goto nla_put_failure; \
4280 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4281 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4283 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4284 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
4285 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
4286 (u32)sinfo->rx_bytes))
4287 goto nla_put_failure;
4289 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4290 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
4291 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
4292 (u32)sinfo->tx_bytes))
4293 goto nla_put_failure;
4295 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4296 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
4297 PUT_SINFO(LLID, llid, u16);
4298 PUT_SINFO(PLID, plid, u16);
4299 PUT_SINFO(PLINK_STATE, plink_state, u8);
4300 PUT_SINFO_U64(RX_DURATION, rx_duration);
4302 switch (rdev->wiphy.signal_type) {
4303 case CFG80211_SIGNAL_TYPE_MBM:
4304 PUT_SINFO(SIGNAL, signal, u8);
4305 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
4310 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
4311 if (!nl80211_put_signal(msg, sinfo->chains,
4312 sinfo->chain_signal,
4313 NL80211_STA_INFO_CHAIN_SIGNAL))
4314 goto nla_put_failure;
4316 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
4317 if (!nl80211_put_signal(msg, sinfo->chains,
4318 sinfo->chain_signal_avg,
4319 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4320 goto nla_put_failure;
4322 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
4323 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4324 NL80211_STA_INFO_TX_BITRATE))
4325 goto nla_put_failure;
4327 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
4328 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4329 NL80211_STA_INFO_RX_BITRATE))
4330 goto nla_put_failure;
4333 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4334 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4335 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4336 PUT_SINFO(TX_FAILED, tx_failed, u32);
4337 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4338 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4339 PUT_SINFO(LOCAL_PM, local_pm, u32);
4340 PUT_SINFO(PEER_PM, peer_pm, u32);
4341 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4343 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
4344 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4346 goto nla_put_failure;
4348 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4349 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4350 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4351 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4352 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4353 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4354 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4355 sinfo->bss_param.dtim_period) ||
4356 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4357 sinfo->bss_param.beacon_interval))
4358 goto nla_put_failure;
4360 nla_nest_end(msg, bss_param);
4362 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
4363 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4364 sizeof(struct nl80211_sta_flag_update),
4366 goto nla_put_failure;
4368 PUT_SINFO_U64(T_OFFSET, t_offset);
4369 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4370 PUT_SINFO_U64(BEACON_RX, rx_beacon);
4371 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
4374 #undef PUT_SINFO_U64
4376 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4377 struct nlattr *tidsattr;
4380 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4382 goto nla_put_failure;
4384 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4385 struct cfg80211_tid_stats *tidstats;
4386 struct nlattr *tidattr;
4388 tidstats = &sinfo->pertid[tid];
4390 if (!tidstats->filled)
4393 tidattr = nla_nest_start(msg, tid + 1);
4395 goto nla_put_failure;
4397 #define PUT_TIDVAL_U64(attr, memb) do { \
4398 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
4399 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4400 tidstats->memb, NL80211_TID_STATS_PAD)) \
4401 goto nla_put_failure; \
4404 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4405 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4406 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4407 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
4409 #undef PUT_TIDVAL_U64
4410 nla_nest_end(msg, tidattr);
4413 nla_nest_end(msg, tidsattr);
4416 nla_nest_end(msg, sinfoattr);
4418 if (sinfo->assoc_req_ies_len &&
4419 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4420 sinfo->assoc_req_ies))
4421 goto nla_put_failure;
4423 genlmsg_end(msg, hdr);
4427 genlmsg_cancel(msg, hdr);
4431 static int nl80211_dump_station(struct sk_buff *skb,
4432 struct netlink_callback *cb)
4434 struct station_info sinfo;
4435 struct cfg80211_registered_device *rdev;
4436 struct wireless_dev *wdev;
4437 u8 mac_addr[ETH_ALEN];
4438 int sta_idx = cb->args[2];
4442 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4446 if (!wdev->netdev) {
4451 if (!rdev->ops->dump_station) {
4457 memset(&sinfo, 0, sizeof(sinfo));
4458 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
4465 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
4466 NETLINK_CB(cb->skb).portid,
4467 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4468 rdev, wdev->netdev, mac_addr,
4476 cb->args[2] = sta_idx;
4484 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4487 struct net_device *dev = info->user_ptr[1];
4488 struct station_info sinfo;
4489 struct sk_buff *msg;
4490 u8 *mac_addr = NULL;
4493 memset(&sinfo, 0, sizeof(sinfo));
4495 if (!info->attrs[NL80211_ATTR_MAC])
4498 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4500 if (!rdev->ops->get_station)
4503 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
4507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4511 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4512 info->snd_portid, info->snd_seq, 0,
4513 rdev, dev, mac_addr, &sinfo) < 0) {
4518 return genlmsg_reply(msg, info);
4521 int cfg80211_check_station_change(struct wiphy *wiphy,
4522 struct station_parameters *params,
4523 enum cfg80211_station_type statype)
4525 if (params->listen_interval != -1 &&
4526 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4529 if (params->support_p2p_ps != -1 &&
4530 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4534 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4535 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4538 /* When you run into this, adjust the code below for the new flag */
4539 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4542 case CFG80211_STA_MESH_PEER_KERNEL:
4543 case CFG80211_STA_MESH_PEER_USER:
4545 * No ignoring the TDLS flag here -- the userspace mesh
4546 * code doesn't have the bug of including TDLS in the
4549 if (params->sta_flags_mask &
4550 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4551 BIT(NL80211_STA_FLAG_MFP) |
4552 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4555 case CFG80211_STA_TDLS_PEER_SETUP:
4556 case CFG80211_STA_TDLS_PEER_ACTIVE:
4557 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4559 /* ignore since it can't change */
4560 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4563 /* disallow mesh-specific things */
4564 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4566 if (params->local_pm)
4568 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4572 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4573 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4574 /* TDLS can't be set, ... */
4575 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4578 * ... but don't bother the driver with it. This works around
4579 * a hostapd/wpa_supplicant issue -- it always includes the
4580 * TLDS_PEER flag in the mask even for AP mode.
4582 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4585 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4586 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4587 /* reject other things that can't change */
4588 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4590 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4592 if (params->supported_rates)
4594 if (params->ext_capab || params->ht_capa || params->vht_capa)
4598 if (statype != CFG80211_STA_AP_CLIENT &&
4599 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4605 case CFG80211_STA_AP_MLME_CLIENT:
4606 /* Use this only for authorizing/unauthorizing a station */
4607 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4610 case CFG80211_STA_AP_CLIENT:
4611 case CFG80211_STA_AP_CLIENT_UNASSOC:
4612 /* accept only the listed bits */
4613 if (params->sta_flags_mask &
4614 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4615 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4616 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4617 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4618 BIT(NL80211_STA_FLAG_WME) |
4619 BIT(NL80211_STA_FLAG_MFP)))
4622 /* but authenticated/associated only if driver handles it */
4623 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4624 params->sta_flags_mask &
4625 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4626 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4629 case CFG80211_STA_IBSS:
4630 case CFG80211_STA_AP_STA:
4631 /* reject any changes other than AUTHORIZED */
4632 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4635 case CFG80211_STA_TDLS_PEER_SETUP:
4636 /* reject any changes other than AUTHORIZED or WME */
4637 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4638 BIT(NL80211_STA_FLAG_WME)))
4640 /* force (at least) rates when authorizing */
4641 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4642 !params->supported_rates)
4645 case CFG80211_STA_TDLS_PEER_ACTIVE:
4646 /* reject any changes */
4648 case CFG80211_STA_MESH_PEER_KERNEL:
4649 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4652 case CFG80211_STA_MESH_PEER_USER:
4653 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4654 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4660 * Older kernel versions ignored this attribute entirely, so don't
4661 * reject attempts to update it but mark it as unused instead so the
4662 * driver won't look at the data.
4664 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4665 statype != CFG80211_STA_TDLS_PEER_SETUP)
4666 params->opmode_notif_used = false;
4670 EXPORT_SYMBOL(cfg80211_check_station_change);
4673 * Get vlan interface making sure it is running and on the right wiphy.
4675 static struct net_device *get_vlan(struct genl_info *info,
4676 struct cfg80211_registered_device *rdev)
4678 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4679 struct net_device *v;
4685 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4687 return ERR_PTR(-ENODEV);
4689 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4694 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4695 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4696 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4701 if (!netif_running(v)) {
4709 return ERR_PTR(ret);
4712 static const struct nla_policy
4713 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4714 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4715 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4718 static int nl80211_parse_sta_wme(struct genl_info *info,
4719 struct station_parameters *params)
4721 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4725 /* parse WME attributes if present */
4726 if (!info->attrs[NL80211_ATTR_STA_WME])
4729 nla = info->attrs[NL80211_ATTR_STA_WME];
4730 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4731 nl80211_sta_wme_policy);
4735 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4736 params->uapsd_queues = nla_get_u8(
4737 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4738 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4741 if (tb[NL80211_STA_WME_MAX_SP])
4742 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4744 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4747 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4752 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4753 struct station_parameters *params)
4755 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4756 params->supported_channels =
4757 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4758 params->supported_channels_len =
4759 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4761 * Need to include at least one (first channel, number of
4762 * channels) tuple for each subband, and must have proper
4763 * tuples for the rest of the data as well.
4765 if (params->supported_channels_len < 2)
4767 if (params->supported_channels_len % 2)
4771 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4772 params->supported_oper_classes =
4773 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4774 params->supported_oper_classes_len =
4775 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4777 * The value of the Length field of the Supported Operating
4778 * Classes element is between 2 and 253.
4780 if (params->supported_oper_classes_len < 2 ||
4781 params->supported_oper_classes_len > 253)
4787 static int nl80211_set_station_tdls(struct genl_info *info,
4788 struct station_parameters *params)
4791 /* Dummy STA entry gets updated once the peer capabilities are known */
4792 if (info->attrs[NL80211_ATTR_PEER_AID])
4793 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4794 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4796 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4797 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4799 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4801 err = nl80211_parse_sta_channel_info(info, params);
4805 return nl80211_parse_sta_wme(info, params);
4808 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4811 struct net_device *dev = info->user_ptr[1];
4812 struct station_parameters params;
4816 memset(¶ms, 0, sizeof(params));
4818 if (!rdev->ops->change_station)
4822 * AID and listen_interval properties can be set only for unassociated
4823 * station. Include these parameters here and will check them in
4824 * cfg80211_check_station_change().
4826 if (info->attrs[NL80211_ATTR_STA_AID])
4827 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4829 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4830 params.listen_interval =
4831 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4833 params.listen_interval = -1;
4835 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4838 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4839 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4842 params.support_p2p_ps = tmp;
4844 params.support_p2p_ps = -1;
4847 if (!info->attrs[NL80211_ATTR_MAC])
4850 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4852 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4853 params.supported_rates =
4854 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4855 params.supported_rates_len =
4856 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4859 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4861 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4862 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4865 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4867 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4868 params.ext_capab_len =
4869 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4872 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4875 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4876 params.plink_action =
4877 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4878 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4882 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4883 params.plink_state =
4884 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4885 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4887 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4888 params.peer_aid = nla_get_u16(
4889 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4890 if (params.peer_aid > IEEE80211_MAX_AID)
4893 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4896 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4897 enum nl80211_mesh_power_mode pm = nla_get_u32(
4898 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4900 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4901 pm > NL80211_MESH_POWER_MAX)
4904 params.local_pm = pm;
4907 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4908 params.opmode_notif_used = true;
4909 params.opmode_notif =
4910 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4913 /* Include parameters for TDLS peer (will check later) */
4914 err = nl80211_set_station_tdls(info, ¶ms);
4918 params.vlan = get_vlan(info, rdev);
4919 if (IS_ERR(params.vlan))
4920 return PTR_ERR(params.vlan);
4922 switch (dev->ieee80211_ptr->iftype) {
4923 case NL80211_IFTYPE_AP:
4924 case NL80211_IFTYPE_AP_VLAN:
4925 case NL80211_IFTYPE_P2P_GO:
4926 case NL80211_IFTYPE_P2P_CLIENT:
4927 case NL80211_IFTYPE_STATION:
4928 case NL80211_IFTYPE_ADHOC:
4929 case NL80211_IFTYPE_MESH_POINT:
4936 /* driver will call cfg80211_check_station_change() */
4937 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4941 dev_put(params.vlan);
4946 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4950 struct net_device *dev = info->user_ptr[1];
4951 struct station_parameters params;
4952 u8 *mac_addr = NULL;
4953 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4954 BIT(NL80211_STA_FLAG_ASSOCIATED);
4956 memset(¶ms, 0, sizeof(params));
4958 if (!rdev->ops->add_station)
4961 if (!info->attrs[NL80211_ATTR_MAC])
4964 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4967 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4970 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4971 !info->attrs[NL80211_ATTR_PEER_AID])
4974 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4975 params.supported_rates =
4976 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4977 params.supported_rates_len =
4978 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4979 params.listen_interval =
4980 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4982 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4985 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4986 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4989 params.support_p2p_ps = tmp;
4992 * if not specified, assume it's supported for P2P GO interface,
4993 * and is NOT supported for AP interface
4995 params.support_p2p_ps =
4996 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4999 if (info->attrs[NL80211_ATTR_PEER_AID])
5000 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
5002 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
5003 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5006 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5008 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5009 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5012 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5014 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5015 params.ext_capab_len =
5016 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5019 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5021 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5023 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5025 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5027 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5028 params.opmode_notif_used = true;
5029 params.opmode_notif =
5030 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5033 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
5034 params.plink_action =
5035 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5036 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5040 err = nl80211_parse_sta_channel_info(info, ¶ms);
5044 err = nl80211_parse_sta_wme(info, ¶ms);
5048 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5051 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5052 * as userspace might just pass through the capabilities from the IEs
5053 * directly, rather than enforcing this restriction and returning an
5054 * error in this case.
5056 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5057 params.ht_capa = NULL;
5058 params.vht_capa = NULL;
5061 /* When you run into this, adjust the code below for the new flag */
5062 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5064 switch (dev->ieee80211_ptr->iftype) {
5065 case NL80211_IFTYPE_AP:
5066 case NL80211_IFTYPE_AP_VLAN:
5067 case NL80211_IFTYPE_P2P_GO:
5068 /* ignore WME attributes if iface/sta is not capable */
5069 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5070 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5071 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5073 /* TDLS peers cannot be added */
5074 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5075 info->attrs[NL80211_ATTR_PEER_AID])
5077 /* but don't bother the driver with it */
5078 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
5080 /* allow authenticated/associated only if driver handles it */
5081 if (!(rdev->wiphy.features &
5082 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
5083 params.sta_flags_mask & auth_assoc)
5086 /* Older userspace, or userspace wanting to be compatible with
5087 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5088 * and assoc flags in the mask, but assumes the station will be
5089 * added as associated anyway since this was the required driver
5090 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5092 * In order to not bother drivers with this quirk in the API
5093 * set the flags in both the mask and set for new stations in
5096 if (!(params.sta_flags_mask & auth_assoc)) {
5097 params.sta_flags_mask |= auth_assoc;
5098 params.sta_flags_set |= auth_assoc;
5101 /* must be last in here for error handling */
5102 params.vlan = get_vlan(info, rdev);
5103 if (IS_ERR(params.vlan))
5104 return PTR_ERR(params.vlan);
5106 case NL80211_IFTYPE_MESH_POINT:
5107 /* ignore uAPSD data */
5108 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5110 /* associated is disallowed */
5111 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5113 /* TDLS peers cannot be added */
5114 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5115 info->attrs[NL80211_ATTR_PEER_AID])
5118 case NL80211_IFTYPE_STATION:
5119 case NL80211_IFTYPE_P2P_CLIENT:
5120 /* ignore uAPSD data */
5121 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5123 /* these are disallowed */
5124 if (params.sta_flags_mask &
5125 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5126 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
5128 /* Only TDLS peers can be added */
5129 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5131 /* Can only add if TDLS ... */
5132 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5134 /* ... with external setup is supported */
5135 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5138 * Older wpa_supplicant versions always mark the TDLS peer
5139 * as authorized, but it shouldn't yet be.
5141 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
5147 /* be aware of params.vlan when changing code here */
5149 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
5152 dev_put(params.vlan);
5156 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5159 struct net_device *dev = info->user_ptr[1];
5160 struct station_del_parameters params;
5162 memset(¶ms, 0, sizeof(params));
5164 if (info->attrs[NL80211_ATTR_MAC])
5165 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5167 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5168 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5169 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5170 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5173 if (!rdev->ops->del_station)
5176 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5178 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5179 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5180 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5183 /* Default to Deauthentication frame */
5184 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5187 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5188 params.reason_code =
5189 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5190 if (params.reason_code == 0)
5191 return -EINVAL; /* 0 is reserved */
5193 /* Default to reason code 2 */
5194 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5197 return rdev_del_station(rdev, dev, ¶ms);
5200 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
5201 int flags, struct net_device *dev,
5202 u8 *dst, u8 *next_hop,
5203 struct mpath_info *pinfo)
5206 struct nlattr *pinfoattr;
5208 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
5212 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5213 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5214 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5215 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5216 goto nla_put_failure;
5218 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5220 goto nla_put_failure;
5221 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5222 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5224 goto nla_put_failure;
5225 if (((pinfo->filled & MPATH_INFO_SN) &&
5226 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5227 ((pinfo->filled & MPATH_INFO_METRIC) &&
5228 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5230 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5231 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5233 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5234 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5236 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5237 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5238 pinfo->discovery_timeout)) ||
5239 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5240 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5241 pinfo->discovery_retries)))
5242 goto nla_put_failure;
5244 nla_nest_end(msg, pinfoattr);
5246 genlmsg_end(msg, hdr);
5250 genlmsg_cancel(msg, hdr);
5254 static int nl80211_dump_mpath(struct sk_buff *skb,
5255 struct netlink_callback *cb)
5257 struct mpath_info pinfo;
5258 struct cfg80211_registered_device *rdev;
5259 struct wireless_dev *wdev;
5261 u8 next_hop[ETH_ALEN];
5262 int path_idx = cb->args[2];
5266 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5270 if (!rdev->ops->dump_mpath) {
5275 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5281 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
5288 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5289 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5290 wdev->netdev, dst, next_hop,
5298 cb->args[2] = path_idx;
5305 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5309 struct net_device *dev = info->user_ptr[1];
5310 struct mpath_info pinfo;
5311 struct sk_buff *msg;
5313 u8 next_hop[ETH_ALEN];
5315 memset(&pinfo, 0, sizeof(pinfo));
5317 if (!info->attrs[NL80211_ATTR_MAC])
5320 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5322 if (!rdev->ops->get_mpath)
5325 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5328 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
5332 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5336 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5337 dev, dst, next_hop, &pinfo) < 0) {
5342 return genlmsg_reply(msg, info);
5345 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5348 struct net_device *dev = info->user_ptr[1];
5350 u8 *next_hop = NULL;
5352 if (!info->attrs[NL80211_ATTR_MAC])
5355 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5358 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5359 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5361 if (!rdev->ops->change_mpath)
5364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5367 return rdev_change_mpath(rdev, dev, dst, next_hop);
5370 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5373 struct net_device *dev = info->user_ptr[1];
5375 u8 *next_hop = NULL;
5377 if (!info->attrs[NL80211_ATTR_MAC])
5380 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5383 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5384 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5386 if (!rdev->ops->add_mpath)
5389 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5392 return rdev_add_mpath(rdev, dev, dst, next_hop);
5395 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5397 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5398 struct net_device *dev = info->user_ptr[1];
5401 if (info->attrs[NL80211_ATTR_MAC])
5402 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5404 if (!rdev->ops->del_mpath)
5407 return rdev_del_mpath(rdev, dev, dst);
5410 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5414 struct net_device *dev = info->user_ptr[1];
5415 struct mpath_info pinfo;
5416 struct sk_buff *msg;
5420 memset(&pinfo, 0, sizeof(pinfo));
5422 if (!info->attrs[NL80211_ATTR_MAC])
5425 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5427 if (!rdev->ops->get_mpp)
5430 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5433 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5437 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5441 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5442 dev, dst, mpp, &pinfo) < 0) {
5447 return genlmsg_reply(msg, info);
5450 static int nl80211_dump_mpp(struct sk_buff *skb,
5451 struct netlink_callback *cb)
5453 struct mpath_info pinfo;
5454 struct cfg80211_registered_device *rdev;
5455 struct wireless_dev *wdev;
5458 int path_idx = cb->args[2];
5462 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5466 if (!rdev->ops->dump_mpp) {
5471 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5477 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5484 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5485 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5486 wdev->netdev, dst, mpp,
5494 cb->args[2] = path_idx;
5501 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5504 struct net_device *dev = info->user_ptr[1];
5505 struct wireless_dev *wdev = dev->ieee80211_ptr;
5506 struct bss_parameters params;
5509 memset(¶ms, 0, sizeof(params));
5510 /* default to not changing parameters */
5511 params.use_cts_prot = -1;
5512 params.use_short_preamble = -1;
5513 params.use_short_slot_time = -1;
5514 params.ap_isolate = -1;
5515 params.ht_opmode = -1;
5516 params.p2p_ctwindow = -1;
5517 params.p2p_opp_ps = -1;
5519 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5520 params.use_cts_prot =
5521 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5522 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5523 params.use_short_preamble =
5524 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5525 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5526 params.use_short_slot_time =
5527 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
5528 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5529 params.basic_rates =
5530 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5531 params.basic_rates_len =
5532 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5534 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5535 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
5536 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5538 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
5540 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5541 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5543 params.p2p_ctwindow =
5544 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5545 if (params.p2p_ctwindow < 0)
5547 if (params.p2p_ctwindow != 0 &&
5548 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5552 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5555 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5557 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5560 params.p2p_opp_ps = tmp;
5561 if (params.p2p_opp_ps &&
5562 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5566 if (!rdev->ops->change_bss)
5569 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5570 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5574 err = rdev_change_bss(rdev, dev, ¶ms);
5580 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5584 enum nl80211_user_reg_hint_type user_reg_hint_type;
5588 * You should only get this when cfg80211 hasn't yet initialized
5589 * completely when built-in to the kernel right between the time
5590 * window between nl80211_init() and regulatory_init(), if that is
5593 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5594 return -EINPROGRESS;
5596 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5597 user_reg_hint_type =
5598 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5600 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5602 switch (user_reg_hint_type) {
5603 case NL80211_USER_REG_HINT_USER:
5604 case NL80211_USER_REG_HINT_CELL_BASE:
5605 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5608 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5609 return regulatory_hint_user(data, user_reg_hint_type);
5610 case NL80211_USER_REG_HINT_INDOOR:
5611 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5612 owner_nlportid = info->snd_portid;
5613 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5619 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5625 static int nl80211_get_mesh_config(struct sk_buff *skb,
5626 struct genl_info *info)
5628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5629 struct net_device *dev = info->user_ptr[1];
5630 struct wireless_dev *wdev = dev->ieee80211_ptr;
5631 struct mesh_config cur_params;
5634 struct nlattr *pinfoattr;
5635 struct sk_buff *msg;
5637 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5640 if (!rdev->ops->get_mesh_config)
5644 /* If not connected, get default parameters */
5645 if (!wdev->mesh_id_len)
5646 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5648 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5654 /* Draw up a netlink message to send back */
5655 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5658 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5659 NL80211_CMD_GET_MESH_CONFIG);
5662 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5664 goto nla_put_failure;
5665 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5666 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5667 cur_params.dot11MeshRetryTimeout) ||
5668 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5669 cur_params.dot11MeshConfirmTimeout) ||
5670 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5671 cur_params.dot11MeshHoldingTimeout) ||
5672 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5673 cur_params.dot11MeshMaxPeerLinks) ||
5674 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5675 cur_params.dot11MeshMaxRetries) ||
5676 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5677 cur_params.dot11MeshTTL) ||
5678 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5679 cur_params.element_ttl) ||
5680 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5681 cur_params.auto_open_plinks) ||
5682 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5683 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5684 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5685 cur_params.dot11MeshHWMPmaxPREQretries) ||
5686 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5687 cur_params.path_refresh_time) ||
5688 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5689 cur_params.min_discovery_timeout) ||
5690 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5691 cur_params.dot11MeshHWMPactivePathTimeout) ||
5692 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5693 cur_params.dot11MeshHWMPpreqMinInterval) ||
5694 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5695 cur_params.dot11MeshHWMPperrMinInterval) ||
5696 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5697 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5698 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5699 cur_params.dot11MeshHWMPRootMode) ||
5700 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5701 cur_params.dot11MeshHWMPRannInterval) ||
5702 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5703 cur_params.dot11MeshGateAnnouncementProtocol) ||
5704 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5705 cur_params.dot11MeshForwarding) ||
5706 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5707 cur_params.rssi_threshold) ||
5708 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5709 cur_params.ht_opmode) ||
5710 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5711 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5712 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5713 cur_params.dot11MeshHWMProotInterval) ||
5714 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5715 cur_params.dot11MeshHWMPconfirmationInterval) ||
5716 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5717 cur_params.power_mode) ||
5718 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5719 cur_params.dot11MeshAwakeWindowDuration) ||
5720 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5721 cur_params.plink_timeout))
5722 goto nla_put_failure;
5723 nla_nest_end(msg, pinfoattr);
5724 genlmsg_end(msg, hdr);
5725 return genlmsg_reply(msg, info);
5728 genlmsg_cancel(msg, hdr);
5734 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5735 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5736 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5737 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5738 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5739 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5740 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5741 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5742 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5743 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5744 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5745 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5746 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5747 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5748 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5749 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5750 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5751 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5752 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5753 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5754 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5755 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5756 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5757 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5758 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5759 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5760 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5761 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5762 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5765 static const struct nla_policy
5766 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5767 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5768 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5769 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5770 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5771 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5772 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5773 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5774 .len = IEEE80211_MAX_DATA_LEN },
5775 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5778 static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5780 u8 val = nla_get_u8(nla);
5781 if (val < min || val > max)
5787 static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5789 u8 val = nla_get_u8(nla);
5790 if (val < min || val > max)
5796 static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5798 u16 val = nla_get_u16(nla);
5799 if (val < min || val > max)
5805 static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5807 u32 val = nla_get_u32(nla);
5808 if (val < min || val > max)
5814 static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5816 s32 val = nla_get_s32(nla);
5817 if (val < min || val > max)
5823 static int nl80211_check_power_mode(const struct nlattr *nla,
5824 enum nl80211_mesh_power_mode min,
5825 enum nl80211_mesh_power_mode max,
5826 enum nl80211_mesh_power_mode *out)
5828 u32 val = nla_get_u32(nla);
5829 if (val < min || val > max)
5835 static int nl80211_parse_mesh_config(struct genl_info *info,
5836 struct mesh_config *cfg,
5839 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5843 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5846 if (fn(tb[attr], min, max, &cfg->param)) \
5848 mask |= (1 << (attr - 1)); \
5852 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5854 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5855 info->attrs[NL80211_ATTR_MESH_CONFIG],
5856 nl80211_meshconf_params_policy))
5859 /* This makes sure that there aren't more than 32 mesh config
5860 * parameters (otherwise our bitfield scheme would not work.) */
5861 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5863 /* Fill in the params struct */
5864 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5865 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5867 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5868 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5871 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5873 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5874 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5876 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5877 mask, NL80211_MESHCONF_MAX_RETRIES,
5879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5880 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
5881 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5882 mask, NL80211_MESHCONF_ELEMENT_TTL,
5884 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5885 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5886 nl80211_check_bool);
5887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5889 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5891 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5892 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5894 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5895 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5897 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5898 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5900 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5902 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5904 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5906 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5908 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5910 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5912 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5913 dot11MeshHWMPnetDiameterTraversalTime,
5915 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5917 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5918 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5921 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5924 dot11MeshGateAnnouncementProtocol, 0, 1,
5925 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5926 nl80211_check_bool);
5927 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5928 mask, NL80211_MESHCONF_FORWARDING,
5929 nl80211_check_bool);
5930 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5931 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5934 * Check HT operation mode based on
5935 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5937 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5938 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5940 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5941 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5942 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5945 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5946 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5949 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5950 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5951 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5952 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5955 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5956 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5957 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5961 cfg->ht_opmode = ht_opmode;
5962 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
5964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5966 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5968 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5969 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5972 dot11MeshHWMPconfirmationInterval,
5974 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5976 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5977 NL80211_MESH_POWER_ACTIVE,
5978 NL80211_MESH_POWER_MAX,
5979 mask, NL80211_MESHCONF_POWER_MODE,
5980 nl80211_check_power_mode);
5981 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5983 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
5984 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5985 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5992 #undef FILL_IN_MESH_PARAM_IF_SET
5995 static int nl80211_parse_mesh_setup(struct genl_info *info,
5996 struct mesh_setup *setup)
5998 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5999 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6001 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6003 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6004 info->attrs[NL80211_ATTR_MESH_SETUP],
6005 nl80211_mesh_setup_params_policy))
6008 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6009 setup->sync_method =
6010 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6011 IEEE80211_SYNC_METHOD_VENDOR :
6012 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6014 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6015 setup->path_sel_proto =
6016 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6017 IEEE80211_PATH_PROTOCOL_VENDOR :
6018 IEEE80211_PATH_PROTOCOL_HWMP;
6020 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6021 setup->path_metric =
6022 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6023 IEEE80211_PATH_METRIC_VENDOR :
6024 IEEE80211_PATH_METRIC_AIRTIME;
6026 if (tb[NL80211_MESH_SETUP_IE]) {
6027 struct nlattr *ieattr =
6028 tb[NL80211_MESH_SETUP_IE];
6029 if (!is_valid_ie_attr(ieattr))
6031 setup->ie = nla_data(ieattr);
6032 setup->ie_len = nla_len(ieattr);
6034 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6035 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6037 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
6038 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6039 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
6040 if (setup->is_secure)
6041 setup->user_mpm = true;
6043 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6044 if (!setup->user_mpm)
6047 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6053 static int nl80211_update_mesh_config(struct sk_buff *skb,
6054 struct genl_info *info)
6056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6057 struct net_device *dev = info->user_ptr[1];
6058 struct wireless_dev *wdev = dev->ieee80211_ptr;
6059 struct mesh_config cfg;
6063 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6066 if (!rdev->ops->update_mesh_config)
6069 err = nl80211_parse_mesh_config(info, &cfg, &mask);
6074 if (!wdev->mesh_id_len)
6078 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
6085 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6086 struct sk_buff *msg)
6088 struct nlattr *nl_reg_rules;
6091 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6092 (regdom->dfs_region &&
6093 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
6094 goto nla_put_failure;
6096 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6098 goto nla_put_failure;
6100 for (i = 0; i < regdom->n_reg_rules; i++) {
6101 struct nlattr *nl_reg_rule;
6102 const struct ieee80211_reg_rule *reg_rule;
6103 const struct ieee80211_freq_range *freq_range;
6104 const struct ieee80211_power_rule *power_rule;
6105 unsigned int max_bandwidth_khz;
6107 reg_rule = ®dom->reg_rules[i];
6108 freq_range = ®_rule->freq_range;
6109 power_rule = ®_rule->power_rule;
6111 nl_reg_rule = nla_nest_start(msg, i);
6113 goto nla_put_failure;
6115 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6116 if (!max_bandwidth_khz)
6117 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6120 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6122 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6123 freq_range->start_freq_khz) ||
6124 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6125 freq_range->end_freq_khz) ||
6126 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
6127 max_bandwidth_khz) ||
6128 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6129 power_rule->max_antenna_gain) ||
6130 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
6131 power_rule->max_eirp) ||
6132 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6133 reg_rule->dfs_cac_ms))
6134 goto nla_put_failure;
6136 nla_nest_end(msg, nl_reg_rule);
6139 nla_nest_end(msg, nl_reg_rules);
6146 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6148 const struct ieee80211_regdomain *regdom = NULL;
6149 struct cfg80211_registered_device *rdev;
6150 struct wiphy *wiphy = NULL;
6151 struct sk_buff *msg;
6154 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6158 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6159 NL80211_CMD_GET_REG);
6163 if (info->attrs[NL80211_ATTR_WIPHY]) {
6166 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6169 return PTR_ERR(rdev);
6172 wiphy = &rdev->wiphy;
6173 self_managed = wiphy->regulatory_flags &
6174 REGULATORY_WIPHY_SELF_MANAGED;
6175 regdom = get_wiphy_regdom(wiphy);
6177 /* a self-managed-reg device must have a private regdom */
6178 if (WARN_ON(!regdom && self_managed)) {
6184 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6185 goto nla_put_failure;
6188 if (!wiphy && reg_last_request_cell_base() &&
6189 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6190 NL80211_USER_REG_HINT_CELL_BASE))
6191 goto nla_put_failure;
6196 regdom = rcu_dereference(cfg80211_regdomain);
6198 if (nl80211_put_regdom(regdom, msg))
6199 goto nla_put_failure_rcu;
6203 genlmsg_end(msg, hdr);
6204 return genlmsg_reply(msg, info);
6206 nla_put_failure_rcu:
6209 genlmsg_cancel(msg, hdr);
6215 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6216 u32 seq, int flags, struct wiphy *wiphy,
6217 const struct ieee80211_regdomain *regdom)
6219 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6220 NL80211_CMD_GET_REG);
6225 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6227 if (nl80211_put_regdom(regdom, msg))
6228 goto nla_put_failure;
6230 if (!wiphy && reg_last_request_cell_base() &&
6231 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6232 NL80211_USER_REG_HINT_CELL_BASE))
6233 goto nla_put_failure;
6236 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6237 goto nla_put_failure;
6239 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6240 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6241 goto nla_put_failure;
6243 genlmsg_end(msg, hdr);
6247 genlmsg_cancel(msg, hdr);
6251 static int nl80211_get_reg_dump(struct sk_buff *skb,
6252 struct netlink_callback *cb)
6254 const struct ieee80211_regdomain *regdom = NULL;
6255 struct cfg80211_registered_device *rdev;
6256 int err, reg_idx, start = cb->args[2];
6260 if (cfg80211_regdomain && start == 0) {
6261 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6263 rtnl_dereference(cfg80211_regdomain));
6268 /* the global regdom is idx 0 */
6270 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6271 regdom = get_wiphy_regdom(&rdev->wiphy);
6275 if (++reg_idx <= start)
6278 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6279 NLM_F_MULTI, &rdev->wiphy, regdom);
6286 cb->args[2] = reg_idx;
6293 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
6294 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6295 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6296 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6297 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6298 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6299 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6300 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6301 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6304 static int parse_reg_rule(struct nlattr *tb[],
6305 struct ieee80211_reg_rule *reg_rule)
6307 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
6308 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
6310 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6312 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6314 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6316 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6318 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6321 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6323 freq_range->start_freq_khz =
6324 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6325 freq_range->end_freq_khz =
6326 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6327 freq_range->max_bandwidth_khz =
6328 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6330 power_rule->max_eirp =
6331 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6333 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6334 power_rule->max_antenna_gain =
6335 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6337 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6338 reg_rule->dfs_cac_ms =
6339 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6344 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6346 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6347 struct nlattr *nl_reg_rule;
6349 int rem_reg_rules, r;
6350 u32 num_rules = 0, rule_idx = 0, size_of_regd;
6351 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
6352 struct ieee80211_regdomain *rd;
6354 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6357 if (!info->attrs[NL80211_ATTR_REG_RULES])
6360 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6362 if (info->attrs[NL80211_ATTR_DFS_REGION])
6363 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6365 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6368 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
6372 if (!reg_is_valid_request(alpha2))
6375 size_of_regd = sizeof(struct ieee80211_regdomain) +
6376 num_rules * sizeof(struct ieee80211_reg_rule);
6378 rd = kzalloc(size_of_regd, GFP_KERNEL);
6382 rd->n_reg_rules = num_rules;
6383 rd->alpha2[0] = alpha2[0];
6384 rd->alpha2[1] = alpha2[1];
6387 * Disable DFS master mode if the DFS region was
6388 * not supported or known on this kernel.
6390 if (reg_supported_dfs_region(dfs_region))
6391 rd->dfs_region = dfs_region;
6393 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6395 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
6396 nl_reg_rule, reg_rule_policy);
6399 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6405 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6411 /* set_regdom takes ownership of rd */
6412 return set_regdom(rd, REGD_SOURCE_CRDA);
6417 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
6419 static int validate_scan_freqs(struct nlattr *freqs)
6421 struct nlattr *attr1, *attr2;
6422 int n_channels = 0, tmp1, tmp2;
6424 nla_for_each_nested(attr1, freqs, tmp1) {
6427 * Some hardware has a limited channel list for
6428 * scanning, and it is pretty much nonsensical
6429 * to scan for a channel twice, so disallow that
6430 * and don't require drivers to check that the
6431 * channel list they get isn't longer than what
6432 * they can scan, as long as they can scan all
6433 * the channels they registered at once.
6435 nla_for_each_nested(attr2, freqs, tmp2)
6436 if (attr1 != attr2 &&
6437 nla_get_u32(attr1) == nla_get_u32(attr2))
6444 static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
6446 return b < NUM_NL80211_BANDS && wiphy->bands[b];
6449 static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6450 struct cfg80211_bss_selection *bss_select)
6452 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6453 struct nlattr *nest;
6458 /* only process one nested attribute */
6459 nest = nla_data(nla);
6460 if (!nla_ok(nest, nla_len(nest)))
6463 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
6464 nl80211_bss_select_policy);
6468 /* only one attribute may be given */
6469 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6477 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6479 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6480 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6482 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6483 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6484 bss_select->param.band_pref =
6485 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6486 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6490 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6491 struct nl80211_bss_select_rssi_adjust *adj_param;
6493 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6494 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6495 bss_select->param.adjust.band = adj_param->band;
6496 bss_select->param.adjust.delta = adj_param->delta;
6497 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6501 /* user-space did not provide behaviour attribute */
6502 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6505 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6511 static int nl80211_parse_random_mac(struct nlattr **attrs,
6512 u8 *mac_addr, u8 *mac_addr_mask)
6516 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
6517 eth_zero_addr(mac_addr);
6518 eth_zero_addr(mac_addr_mask);
6520 mac_addr_mask[0] = 0x3;
6525 /* need both or none */
6526 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6529 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6530 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6532 /* don't allow or configure an mcast address */
6533 if (!is_multicast_ether_addr(mac_addr_mask) ||
6534 is_multicast_ether_addr(mac_addr))
6538 * allow users to pass a MAC address that has bits set outside
6539 * of the mask, but don't bother drivers with having to deal
6542 for (i = 0; i < ETH_ALEN; i++)
6543 mac_addr[i] &= mac_addr_mask[i];
6548 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6551 struct wireless_dev *wdev = info->user_ptr[1];
6552 struct cfg80211_scan_request *request;
6553 struct nlattr *attr;
6554 struct wiphy *wiphy;
6555 int err, tmp, n_ssids = 0, n_channels, i;
6558 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6561 wiphy = &rdev->wiphy;
6563 if (wdev->iftype == NL80211_IFTYPE_NAN)
6566 if (!rdev->ops->scan)
6569 if (rdev->scan_req || rdev->scan_msg) {
6574 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6575 n_channels = validate_scan_freqs(
6576 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6582 n_channels = ieee80211_get_num_supported_channels(wiphy);
6585 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6586 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6589 if (n_ssids > wiphy->max_scan_ssids) {
6594 if (info->attrs[NL80211_ATTR_IE])
6595 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6599 if (ie_len > wiphy->max_scan_ie_len) {
6604 request = kzalloc(sizeof(*request)
6605 + sizeof(*request->ssids) * n_ssids
6606 + sizeof(*request->channels) * n_channels
6607 + ie_len, GFP_KERNEL);
6614 request->ssids = (void *)&request->channels[n_channels];
6615 request->n_ssids = n_ssids;
6618 request->ie = (void *)(request->ssids + n_ssids);
6620 request->ie = (void *)(request->channels + n_channels);
6624 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6625 /* user specified, bail out if channel not found */
6626 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
6627 struct ieee80211_channel *chan;
6629 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6636 /* ignore disabled channels */
6637 if (chan->flags & IEEE80211_CHAN_DISABLED)
6640 request->channels[i] = chan;
6644 enum nl80211_band band;
6647 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6650 if (!wiphy->bands[band])
6652 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6653 struct ieee80211_channel *chan;
6655 chan = &wiphy->bands[band]->channels[j];
6657 if (chan->flags & IEEE80211_CHAN_DISABLED)
6660 request->channels[i] = chan;
6671 request->n_channels = i;
6675 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
6676 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6680 request->ssids[i].ssid_len = nla_len(attr);
6681 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
6686 if (info->attrs[NL80211_ATTR_IE]) {
6687 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6688 memcpy((void *)request->ie,
6689 nla_data(info->attrs[NL80211_ATTR_IE]),
6693 for (i = 0; i < NUM_NL80211_BANDS; i++)
6694 if (wiphy->bands[i])
6696 (1 << wiphy->bands[i]->n_bitrates) - 1;
6698 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6699 nla_for_each_nested(attr,
6700 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6702 enum nl80211_band band = nla_type(attr);
6704 if (band < 0 || band >= NUM_NL80211_BANDS) {
6709 if (!wiphy->bands[band])
6712 err = ieee80211_get_ratemask(wiphy->bands[band],
6715 &request->rates[band]);
6721 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6722 if (!wiphy_ext_feature_isset(wiphy,
6723 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6729 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6730 request->duration_mandatory =
6731 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6734 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
6735 request->flags = nla_get_u32(
6736 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
6737 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6738 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6743 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6744 if (!(wiphy->features &
6745 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6750 if (wdev->current_bss) {
6755 err = nl80211_parse_random_mac(info->attrs,
6757 request->mac_addr_mask);
6764 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6766 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6767 * BSSID to scan for. This was problematic because that same attribute
6768 * was already used for another purpose (local random MAC address). The
6769 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6770 * compatibility with older userspace components, also use the
6771 * NL80211_ATTR_MAC value here if it can be determined to be used for
6772 * the specific BSSID use case instead of the random MAC address
6773 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6775 if (info->attrs[NL80211_ATTR_BSSID])
6776 memcpy(request->bssid,
6777 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6778 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6779 info->attrs[NL80211_ATTR_MAC])
6780 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6783 eth_broadcast_addr(request->bssid);
6785 request->wdev = wdev;
6786 request->wiphy = &rdev->wiphy;
6787 request->scan_start = jiffies;
6789 rdev->scan_req = request;
6790 err = rdev_scan(rdev, request);
6793 nl80211_send_scan_start(rdev, wdev);
6795 dev_hold(wdev->netdev);
6798 rdev->scan_req = NULL;
6806 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6809 struct wireless_dev *wdev = info->user_ptr[1];
6811 if (!rdev->ops->abort_scan)
6817 if (!rdev->scan_req)
6820 rdev_abort_scan(rdev, wdev);
6825 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6826 struct cfg80211_sched_scan_request *request,
6827 struct nlattr **attrs)
6829 int tmp, err, i = 0;
6830 struct nlattr *attr;
6832 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6836 * If scan plans are not specified,
6837 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
6838 * case one scan plan will be set with the specified scan
6839 * interval and infinite number of iterations.
6841 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6845 request->scan_plans[0].interval =
6846 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6847 if (!request->scan_plans[0].interval)
6850 if (request->scan_plans[0].interval >
6851 wiphy->max_sched_scan_plan_interval)
6852 request->scan_plans[0].interval =
6853 wiphy->max_sched_scan_plan_interval;
6858 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6859 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6861 if (WARN_ON(i >= n_plans))
6864 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6865 attr, nl80211_plan_policy);
6869 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6872 request->scan_plans[i].interval =
6873 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6874 if (!request->scan_plans[i].interval ||
6875 request->scan_plans[i].interval >
6876 wiphy->max_sched_scan_plan_interval)
6879 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6880 request->scan_plans[i].iterations =
6881 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6882 if (!request->scan_plans[i].iterations ||
6883 (request->scan_plans[i].iterations >
6884 wiphy->max_sched_scan_plan_iterations))
6886 } else if (i < n_plans - 1) {
6888 * All scan plans but the last one must specify
6889 * a finite number of iterations
6898 * The last scan plan must not specify the number of
6899 * iterations, it is supposed to run infinitely
6901 if (request->scan_plans[n_plans - 1].iterations)
6907 static struct cfg80211_sched_scan_request *
6908 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6909 struct nlattr **attrs, int max_match_sets)
6911 struct cfg80211_sched_scan_request *request;
6912 struct nlattr *attr;
6913 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6914 enum nl80211_band band;
6916 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
6917 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
6919 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6920 return ERR_PTR(-EINVAL);
6922 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6923 n_channels = validate_scan_freqs(
6924 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6926 return ERR_PTR(-EINVAL);
6928 n_channels = ieee80211_get_num_supported_channels(wiphy);
6931 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6932 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6936 if (n_ssids > wiphy->max_sched_scan_ssids)
6937 return ERR_PTR(-EINVAL);
6940 * First, count the number of 'real' matchsets. Due to an issue with
6941 * the old implementation, matchsets containing only the RSSI attribute
6942 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6943 * RSSI for all matchsets, rather than their own matchset for reporting
6944 * all APs with a strong RSSI. This is needed to be compatible with
6945 * older userspace that treated a matchset with only the RSSI as the
6946 * global RSSI for all other matchsets - if there are other matchsets.
6948 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6949 nla_for_each_nested(attr,
6950 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6952 struct nlattr *rssi;
6954 err = nla_parse_nested(tb,
6955 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6956 attr, nl80211_match_policy);
6958 return ERR_PTR(err);
6959 /* add other standalone attributes here */
6960 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6964 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6966 default_match_rssi = nla_get_s32(rssi);
6970 /* However, if there's no other matchset, add the RSSI one */
6971 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6974 if (n_match_sets > max_match_sets)
6975 return ERR_PTR(-EINVAL);
6977 if (attrs[NL80211_ATTR_IE])
6978 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6982 if (ie_len > wiphy->max_sched_scan_ie_len)
6983 return ERR_PTR(-EINVAL);
6985 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6987 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6988 * each scan plan already specifies its own interval
6990 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6991 return ERR_PTR(-EINVAL);
6993 nla_for_each_nested(attr,
6994 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6998 * The scan interval attribute is kept for backward
6999 * compatibility. If no scan plans are specified and sched scan
7000 * interval is specified, one scan plan will be set with this
7001 * scan interval and infinite number of iterations.
7003 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7004 return ERR_PTR(-EINVAL);
7009 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7010 return ERR_PTR(-EINVAL);
7012 if (!wiphy_ext_feature_isset(
7013 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7014 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7015 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7016 return ERR_PTR(-EINVAL);
7018 request = kzalloc(sizeof(*request)
7019 + sizeof(*request->ssids) * n_ssids
7020 + sizeof(*request->match_sets) * n_match_sets
7021 + sizeof(*request->scan_plans) * n_plans
7022 + sizeof(*request->channels) * n_channels
7023 + ie_len, GFP_KERNEL);
7025 return ERR_PTR(-ENOMEM);
7028 request->ssids = (void *)&request->channels[n_channels];
7029 request->n_ssids = n_ssids;
7032 request->ie = (void *)(request->ssids + n_ssids);
7034 request->ie = (void *)(request->channels + n_channels);
7039 request->match_sets = (void *)(request->ie + ie_len);
7041 request->match_sets =
7042 (void *)(request->ssids + n_ssids);
7044 request->match_sets =
7045 (void *)(request->channels + n_channels);
7047 request->n_match_sets = n_match_sets;
7050 request->scan_plans = (void *)(request->match_sets +
7052 else if (request->ie)
7053 request->scan_plans = (void *)(request->ie + ie_len);
7055 request->scan_plans = (void *)(request->ssids + n_ssids);
7057 request->scan_plans = (void *)(request->channels + n_channels);
7059 request->n_scan_plans = n_plans;
7062 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7063 /* user specified, bail out if channel not found */
7064 nla_for_each_nested(attr,
7065 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
7067 struct ieee80211_channel *chan;
7069 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7076 /* ignore disabled channels */
7077 if (chan->flags & IEEE80211_CHAN_DISABLED)
7080 request->channels[i] = chan;
7085 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7088 if (!wiphy->bands[band])
7090 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7091 struct ieee80211_channel *chan;
7093 chan = &wiphy->bands[band]->channels[j];
7095 if (chan->flags & IEEE80211_CHAN_DISABLED)
7098 request->channels[i] = chan;
7109 request->n_channels = i;
7113 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7115 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
7119 request->ssids[i].ssid_len = nla_len(attr);
7120 memcpy(request->ssids[i].ssid, nla_data(attr),
7127 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7128 nla_for_each_nested(attr,
7129 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7131 struct nlattr *ssid, *rssi;
7133 err = nla_parse_nested(tb,
7134 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7135 attr, nl80211_match_policy);
7138 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
7140 if (WARN_ON(i >= n_match_sets)) {
7141 /* this indicates a programming error,
7142 * the loop above should have verified
7149 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7153 memcpy(request->match_sets[i].ssid.ssid,
7154 nla_data(ssid), nla_len(ssid));
7155 request->match_sets[i].ssid.ssid_len =
7157 /* special attribute - old implementation w/a */
7158 request->match_sets[i].rssi_thold =
7160 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7162 request->match_sets[i].rssi_thold =
7168 /* there was no other matchset, so the RSSI one is alone */
7169 if (i == 0 && n_match_sets)
7170 request->match_sets[0].rssi_thold = default_match_rssi;
7172 request->min_rssi_thold = INT_MAX;
7173 for (i = 0; i < n_match_sets; i++)
7174 request->min_rssi_thold =
7175 min(request->match_sets[i].rssi_thold,
7176 request->min_rssi_thold);
7178 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
7182 request->ie_len = ie_len;
7183 memcpy((void *)request->ie,
7184 nla_data(attrs[NL80211_ATTR_IE]),
7188 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
7189 request->flags = nla_get_u32(
7190 attrs[NL80211_ATTR_SCAN_FLAGS]);
7191 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7192 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
7197 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7198 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7200 if (!wdev) /* must be net-detect */
7201 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7203 if (!(wiphy->features & flg)) {
7208 if (wdev && wdev->current_bss) {
7213 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7214 request->mac_addr_mask);
7220 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7222 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7224 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7225 request->relative_rssi = nla_get_s8(
7226 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7227 request->relative_rssi_set = true;
7230 if (request->relative_rssi_set &&
7231 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7232 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7234 rssi_adjust = nla_data(
7235 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7236 request->rssi_adjust.band = rssi_adjust->band;
7237 request->rssi_adjust.delta = rssi_adjust->delta;
7238 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7244 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7248 request->scan_start = jiffies;
7254 return ERR_PTR(err);
7257 static int nl80211_start_sched_scan(struct sk_buff *skb,
7258 struct genl_info *info)
7260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7261 struct net_device *dev = info->user_ptr[1];
7262 struct wireless_dev *wdev = dev->ieee80211_ptr;
7263 struct cfg80211_sched_scan_request *sched_scan_req;
7266 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7267 !rdev->ops->sched_scan_start)
7270 if (rdev->sched_scan_req)
7271 return -EINPROGRESS;
7273 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7275 rdev->wiphy.max_match_sets);
7277 err = PTR_ERR_OR_ZERO(sched_scan_req);
7281 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
7285 sched_scan_req->dev = dev;
7286 sched_scan_req->wiphy = &rdev->wiphy;
7288 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7289 sched_scan_req->owner_nlportid = info->snd_portid;
7291 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
7293 nl80211_send_sched_scan(rdev, dev,
7294 NL80211_CMD_START_SCHED_SCAN);
7298 kfree(sched_scan_req);
7303 static int nl80211_stop_sched_scan(struct sk_buff *skb,
7304 struct genl_info *info)
7306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7308 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7309 !rdev->ops->sched_scan_stop)
7312 return __cfg80211_stop_sched_scan(rdev, false);
7315 static int nl80211_start_radar_detection(struct sk_buff *skb,
7316 struct genl_info *info)
7318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7319 struct net_device *dev = info->user_ptr[1];
7320 struct wireless_dev *wdev = dev->ieee80211_ptr;
7321 struct cfg80211_chan_def chandef;
7322 enum nl80211_dfs_regions dfs_region;
7323 unsigned int cac_time_ms;
7326 dfs_region = reg_get_dfs_region(wdev->wiphy);
7327 if (dfs_region == NL80211_DFS_UNSET)
7330 err = nl80211_parse_chandef(rdev, info, &chandef);
7334 if (netif_carrier_ok(dev))
7337 if (wdev->cac_started)
7340 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
7348 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
7351 if (!rdev->ops->start_radar_detection)
7354 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7355 if (WARN_ON(!cac_time_ms))
7356 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7358 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
7360 wdev->chandef = chandef;
7361 wdev->cac_started = true;
7362 wdev->cac_start_time = jiffies;
7363 wdev->cac_time_ms = cac_time_ms;
7368 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7371 struct net_device *dev = info->user_ptr[1];
7372 struct wireless_dev *wdev = dev->ieee80211_ptr;
7373 struct cfg80211_csa_settings params;
7374 /* csa_attrs is defined static to avoid waste of stack size - this
7375 * function is called under RTNL lock, so this should not be a problem.
7377 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
7379 bool need_new_beacon = false;
7383 if (!rdev->ops->channel_switch ||
7384 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7387 switch (dev->ieee80211_ptr->iftype) {
7388 case NL80211_IFTYPE_AP:
7389 case NL80211_IFTYPE_P2P_GO:
7390 need_new_beacon = true;
7392 /* useless if AP is not running */
7393 if (!wdev->beacon_interval)
7396 case NL80211_IFTYPE_ADHOC:
7397 if (!wdev->ssid_len)
7400 case NL80211_IFTYPE_MESH_POINT:
7401 if (!wdev->mesh_id_len)
7408 memset(¶ms, 0, sizeof(params));
7410 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7411 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7414 /* only important for AP, IBSS and mesh create IEs internally */
7415 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
7418 /* Even though the attribute is u32, the specification says
7419 * u8, so let's make sure we don't overflow.
7421 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7425 params.count = cs_count;
7427 if (!need_new_beacon)
7430 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
7434 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7435 info->attrs[NL80211_ATTR_CSA_IES],
7440 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
7444 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7447 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7448 if (!len || (len % sizeof(u16)))
7451 params.n_counter_offsets_beacon = len / sizeof(u16);
7452 if (rdev->wiphy.max_num_csa_counters &&
7453 (params.n_counter_offsets_beacon >
7454 rdev->wiphy.max_num_csa_counters))
7457 params.counter_offsets_beacon =
7458 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7460 /* sanity checks - counters should fit and be the same */
7461 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7462 u16 offset = params.counter_offsets_beacon[i];
7464 if (offset >= params.beacon_csa.tail_len)
7467 if (params.beacon_csa.tail[offset] != params.count)
7471 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
7472 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7473 if (!len || (len % sizeof(u16)))
7476 params.n_counter_offsets_presp = len / sizeof(u16);
7477 if (rdev->wiphy.max_num_csa_counters &&
7478 (params.n_counter_offsets_presp >
7479 rdev->wiphy.max_num_csa_counters))
7482 params.counter_offsets_presp =
7483 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7485 /* sanity checks - counters should fit and be the same */
7486 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7487 u16 offset = params.counter_offsets_presp[i];
7489 if (offset >= params.beacon_csa.probe_resp_len)
7492 if (params.beacon_csa.probe_resp[offset] !=
7499 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
7503 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
7507 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7514 params.radar_required = true;
7516 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7517 params.block_tx = true;
7520 err = rdev_channel_switch(rdev, dev, ¶ms);
7526 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7528 struct cfg80211_registered_device *rdev,
7529 struct wireless_dev *wdev,
7530 struct cfg80211_internal_bss *intbss)
7532 struct cfg80211_bss *res = &intbss->pub;
7533 const struct cfg80211_bss_ies *ies;
7537 ASSERT_WDEV_LOCK(wdev);
7539 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
7540 NL80211_CMD_NEW_SCAN_RESULTS);
7544 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7546 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7547 goto nla_put_failure;
7549 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7550 goto nla_put_failure;
7551 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7553 goto nla_put_failure;
7555 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7557 goto nla_put_failure;
7558 if ((!is_zero_ether_addr(res->bssid) &&
7559 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
7560 goto nla_put_failure;
7563 /* indicate whether we have probe response data or not */
7564 if (rcu_access_pointer(res->proberesp_ies) &&
7565 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7566 goto fail_unlock_rcu;
7568 /* this pointer prefers to be pointed to probe response data
7569 * but is always valid
7571 ies = rcu_dereference(res->ies);
7573 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7575 goto fail_unlock_rcu;
7576 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7577 ies->len, ies->data))
7578 goto fail_unlock_rcu;
7581 /* and this pointer is always (unless driver didn't know) beacon data */
7582 ies = rcu_dereference(res->beacon_ies);
7583 if (ies && ies->from_beacon) {
7584 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7586 goto fail_unlock_rcu;
7587 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7588 ies->len, ies->data))
7589 goto fail_unlock_rcu;
7593 if (res->beacon_interval &&
7594 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7595 goto nla_put_failure;
7596 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7597 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
7598 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
7599 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7600 jiffies_to_msecs(jiffies - intbss->ts)))
7601 goto nla_put_failure;
7603 if (intbss->parent_tsf &&
7604 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7605 intbss->parent_tsf, NL80211_BSS_PAD) ||
7606 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7607 intbss->parent_bssid)))
7608 goto nla_put_failure;
7610 if (intbss->ts_boottime &&
7611 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7612 intbss->ts_boottime, NL80211_BSS_PAD))
7613 goto nla_put_failure;
7615 switch (rdev->wiphy.signal_type) {
7616 case CFG80211_SIGNAL_TYPE_MBM:
7617 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7618 goto nla_put_failure;
7620 case CFG80211_SIGNAL_TYPE_UNSPEC:
7621 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7622 goto nla_put_failure;
7628 switch (wdev->iftype) {
7629 case NL80211_IFTYPE_P2P_CLIENT:
7630 case NL80211_IFTYPE_STATION:
7631 if (intbss == wdev->current_bss &&
7632 nla_put_u32(msg, NL80211_BSS_STATUS,
7633 NL80211_BSS_STATUS_ASSOCIATED))
7634 goto nla_put_failure;
7636 case NL80211_IFTYPE_ADHOC:
7637 if (intbss == wdev->current_bss &&
7638 nla_put_u32(msg, NL80211_BSS_STATUS,
7639 NL80211_BSS_STATUS_IBSS_JOINED))
7640 goto nla_put_failure;
7646 nla_nest_end(msg, bss);
7648 genlmsg_end(msg, hdr);
7654 genlmsg_cancel(msg, hdr);
7658 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
7660 struct cfg80211_registered_device *rdev;
7661 struct cfg80211_internal_bss *scan;
7662 struct wireless_dev *wdev;
7663 int start = cb->args[2], idx = 0;
7667 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7674 spin_lock_bh(&rdev->bss_lock);
7675 cfg80211_bss_expire(rdev);
7677 cb->seq = rdev->bss_generation;
7679 list_for_each_entry(scan, &rdev->bss_list, list) {
7682 if (nl80211_send_bss(skb, cb,
7683 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7684 rdev, wdev, scan) < 0) {
7690 spin_unlock_bh(&rdev->bss_lock);
7699 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
7700 int flags, struct net_device *dev,
7701 bool allow_radio_stats,
7702 struct survey_info *survey)
7705 struct nlattr *infoattr;
7707 /* skip radio stats if userspace didn't request them */
7708 if (!survey->channel && !allow_radio_stats)
7711 hdr = nl80211hdr_put(msg, portid, seq, flags,
7712 NL80211_CMD_NEW_SURVEY_RESULTS);
7716 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7717 goto nla_put_failure;
7719 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7721 goto nla_put_failure;
7723 if (survey->channel &&
7724 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
7725 survey->channel->center_freq))
7726 goto nla_put_failure;
7728 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7729 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7730 goto nla_put_failure;
7731 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7732 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7733 goto nla_put_failure;
7734 if ((survey->filled & SURVEY_INFO_TIME) &&
7735 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7736 survey->time, NL80211_SURVEY_INFO_PAD))
7737 goto nla_put_failure;
7738 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
7739 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7740 survey->time_busy, NL80211_SURVEY_INFO_PAD))
7741 goto nla_put_failure;
7742 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
7743 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7744 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
7745 goto nla_put_failure;
7746 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
7747 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7748 survey->time_rx, NL80211_SURVEY_INFO_PAD))
7749 goto nla_put_failure;
7750 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
7751 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7752 survey->time_tx, NL80211_SURVEY_INFO_PAD))
7753 goto nla_put_failure;
7754 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
7755 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7756 survey->time_scan, NL80211_SURVEY_INFO_PAD))
7757 goto nla_put_failure;
7759 nla_nest_end(msg, infoattr);
7761 genlmsg_end(msg, hdr);
7765 genlmsg_cancel(msg, hdr);
7769 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
7771 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7772 struct survey_info survey;
7773 struct cfg80211_registered_device *rdev;
7774 struct wireless_dev *wdev;
7775 int survey_idx = cb->args[2];
7780 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7784 /* prepare_wdev_dump parsed the attributes */
7785 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7787 if (!wdev->netdev) {
7792 if (!rdev->ops->dump_survey) {
7798 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
7804 /* don't send disabled channels, but do send non-channel data */
7805 if (survey.channel &&
7806 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
7811 if (nl80211_send_survey(skb,
7812 NETLINK_CB(cb->skb).portid,
7813 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7814 wdev->netdev, radio_stats, &survey) < 0)
7820 cb->args[2] = survey_idx;
7827 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7829 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7830 NL80211_WPA_VERSION_2));
7833 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7836 struct net_device *dev = info->user_ptr[1];
7837 struct ieee80211_channel *chan;
7838 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
7839 int err, ssid_len, ie_len = 0, auth_data_len = 0;
7840 enum nl80211_auth_type auth_type;
7841 struct key_parse key;
7842 bool local_state_change;
7844 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7847 if (!info->attrs[NL80211_ATTR_MAC])
7850 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7853 if (!info->attrs[NL80211_ATTR_SSID])
7856 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7859 err = nl80211_parse_key(info, &key);
7864 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7866 if (!key.p.key || !key.p.key_len)
7868 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7869 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7870 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7871 key.p.key_len != WLAN_KEY_LEN_WEP104))
7884 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7885 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7894 if (!rdev->ops->auth)
7897 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7898 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7901 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7902 chan = nl80211_get_valid_chan(&rdev->wiphy,
7903 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7907 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7908 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7910 if (info->attrs[NL80211_ATTR_IE]) {
7911 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7912 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7915 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7916 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
7919 if ((auth_type == NL80211_AUTHTYPE_SAE ||
7920 auth_type == NL80211_AUTHTYPE_FILS_SK ||
7921 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
7922 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
7923 !info->attrs[NL80211_ATTR_AUTH_DATA])
7926 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
7927 if (auth_type != NL80211_AUTHTYPE_SAE &&
7928 auth_type != NL80211_AUTHTYPE_FILS_SK &&
7929 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
7930 auth_type != NL80211_AUTHTYPE_FILS_PK)
7932 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
7933 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
7934 /* need to include at least Auth Transaction and Status Code */
7935 if (auth_data_len < 4)
7939 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7942 * Since we no longer track auth state, ignore
7943 * requests to only change local state.
7945 if (local_state_change)
7948 wdev_lock(dev->ieee80211_ptr);
7949 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7950 ssid, ssid_len, ie, ie_len,
7951 key.p.key, key.p.key_len, key.idx,
7952 auth_data, auth_data_len);
7953 wdev_unlock(dev->ieee80211_ptr);
7957 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7958 struct genl_info *info,
7959 struct cfg80211_crypto_settings *settings,
7962 memset(settings, 0, sizeof(*settings));
7964 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7966 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7969 proto = nla_get_u16(
7970 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7971 settings->control_port_ethertype = cpu_to_be16(proto);
7972 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7975 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7976 settings->control_port_no_encrypt = true;
7978 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7980 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7984 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7985 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7986 settings->n_ciphers_pairwise = len / sizeof(u32);
7988 if (len % sizeof(u32))
7991 if (settings->n_ciphers_pairwise > cipher_limit)
7994 memcpy(settings->ciphers_pairwise, data, len);
7996 for (i = 0; i < settings->n_ciphers_pairwise; i++)
7997 if (!cfg80211_supported_cipher_suite(
7999 settings->ciphers_pairwise[i]))
8003 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8004 settings->cipher_group =
8005 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
8006 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8007 settings->cipher_group))
8011 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8012 settings->wpa_versions =
8013 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8014 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8018 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8022 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8023 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8024 settings->n_akm_suites = len / sizeof(u32);
8026 if (len % sizeof(u32))
8029 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8032 memcpy(settings->akm_suites, data, len);
8038 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8041 struct net_device *dev = info->user_ptr[1];
8042 struct ieee80211_channel *chan;
8043 struct cfg80211_assoc_request req = {};
8044 const u8 *bssid, *ssid;
8045 int err, ssid_len = 0;
8047 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8050 if (!info->attrs[NL80211_ATTR_MAC] ||
8051 !info->attrs[NL80211_ATTR_SSID] ||
8052 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
8055 if (!rdev->ops->assoc)
8058 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8059 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8062 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8064 chan = nl80211_get_valid_chan(&rdev->wiphy,
8065 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8069 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8070 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8072 if (info->attrs[NL80211_ATTR_IE]) {
8073 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8074 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8077 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8078 enum nl80211_mfp mfp =
8079 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8080 if (mfp == NL80211_MFP_REQUIRED)
8082 else if (mfp != NL80211_MFP_NO)
8086 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8087 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8089 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8090 req.flags |= ASSOC_REQ_DISABLE_HT;
8092 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8093 memcpy(&req.ht_capa_mask,
8094 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8095 sizeof(req.ht_capa_mask));
8097 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8098 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8100 memcpy(&req.ht_capa,
8101 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8102 sizeof(req.ht_capa));
8105 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8106 req.flags |= ASSOC_REQ_DISABLE_VHT;
8108 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8109 memcpy(&req.vht_capa_mask,
8110 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8111 sizeof(req.vht_capa_mask));
8113 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8114 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8116 memcpy(&req.vht_capa,
8117 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8118 sizeof(req.vht_capa));
8121 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8122 if (!((rdev->wiphy.features &
8123 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8124 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8125 !wiphy_ext_feature_isset(&rdev->wiphy,
8126 NL80211_EXT_FEATURE_RRM))
8128 req.flags |= ASSOC_REQ_USE_RRM;
8131 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8132 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8133 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8134 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8137 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8140 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
8142 wdev_lock(dev->ieee80211_ptr);
8144 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8145 ssid, ssid_len, &req);
8147 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8148 dev->ieee80211_ptr->conn_owner_nlportid =
8150 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8154 wdev_unlock(dev->ieee80211_ptr);
8160 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8163 struct net_device *dev = info->user_ptr[1];
8164 const u8 *ie = NULL, *bssid;
8165 int ie_len = 0, err;
8167 bool local_state_change;
8169 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8172 if (!info->attrs[NL80211_ATTR_MAC])
8175 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8178 if (!rdev->ops->deauth)
8181 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8182 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8185 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8187 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8188 if (reason_code == 0) {
8189 /* Reason Code 0 is reserved */
8193 if (info->attrs[NL80211_ATTR_IE]) {
8194 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8195 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8198 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8200 wdev_lock(dev->ieee80211_ptr);
8201 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8202 local_state_change);
8203 wdev_unlock(dev->ieee80211_ptr);
8207 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8210 struct net_device *dev = info->user_ptr[1];
8211 const u8 *ie = NULL, *bssid;
8212 int ie_len = 0, err;
8214 bool local_state_change;
8216 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8219 if (!info->attrs[NL80211_ATTR_MAC])
8222 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8225 if (!rdev->ops->disassoc)
8228 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8229 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8232 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8234 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8235 if (reason_code == 0) {
8236 /* Reason Code 0 is reserved */
8240 if (info->attrs[NL80211_ATTR_IE]) {
8241 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8242 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8245 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8247 wdev_lock(dev->ieee80211_ptr);
8248 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8249 local_state_change);
8250 wdev_unlock(dev->ieee80211_ptr);
8255 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
8256 int mcast_rate[NUM_NL80211_BANDS],
8259 struct wiphy *wiphy = &rdev->wiphy;
8263 for (band = 0; band < NUM_NL80211_BANDS; band++) {
8264 struct ieee80211_supported_band *sband;
8266 sband = wiphy->bands[band];
8270 for (i = 0; i < sband->n_bitrates; i++) {
8271 if (sband->bitrates[i].bitrate == rateval) {
8272 mcast_rate[band] = i + 1;
8282 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8285 struct net_device *dev = info->user_ptr[1];
8286 struct cfg80211_ibss_params ibss;
8287 struct wiphy *wiphy;
8288 struct cfg80211_cached_keys *connkeys = NULL;
8291 memset(&ibss, 0, sizeof(ibss));
8293 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8296 if (!info->attrs[NL80211_ATTR_SSID] ||
8297 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8300 ibss.beacon_interval = 100;
8302 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8303 ibss.beacon_interval =
8304 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8306 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8307 ibss.beacon_interval);
8311 if (!rdev->ops->join_ibss)
8314 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8317 wiphy = &rdev->wiphy;
8319 if (info->attrs[NL80211_ATTR_MAC]) {
8320 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8322 if (!is_valid_ether_addr(ibss.bssid))
8325 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8326 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8328 if (info->attrs[NL80211_ATTR_IE]) {
8329 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8330 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8333 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8337 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8338 NL80211_IFTYPE_ADHOC))
8341 switch (ibss.chandef.width) {
8342 case NL80211_CHAN_WIDTH_5:
8343 case NL80211_CHAN_WIDTH_10:
8344 case NL80211_CHAN_WIDTH_20_NOHT:
8346 case NL80211_CHAN_WIDTH_20:
8347 case NL80211_CHAN_WIDTH_40:
8348 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8351 case NL80211_CHAN_WIDTH_80:
8352 case NL80211_CHAN_WIDTH_80P80:
8353 case NL80211_CHAN_WIDTH_160:
8354 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8356 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8357 NL80211_EXT_FEATURE_VHT_IBSS))
8364 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
8365 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8367 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8369 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8371 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8372 struct ieee80211_supported_band *sband =
8373 wiphy->bands[ibss.chandef.chan->band];
8375 err = ieee80211_get_ratemask(sband, rates, n_rates,
8381 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8382 memcpy(&ibss.ht_capa_mask,
8383 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8384 sizeof(ibss.ht_capa_mask));
8386 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8387 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8389 memcpy(&ibss.ht_capa,
8390 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8391 sizeof(ibss.ht_capa));
8394 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8395 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8396 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8399 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8402 connkeys = nl80211_parse_connkeys(rdev,
8403 info->attrs[NL80211_ATTR_KEYS],
8405 if (IS_ERR(connkeys))
8406 return PTR_ERR(connkeys);
8408 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8416 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8418 ibss.userspace_handles_dfs =
8419 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8421 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
8427 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8430 struct net_device *dev = info->user_ptr[1];
8432 if (!rdev->ops->leave_ibss)
8435 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8438 return cfg80211_leave_ibss(rdev, dev, false);
8441 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8444 struct net_device *dev = info->user_ptr[1];
8445 int mcast_rate[NUM_NL80211_BANDS];
8449 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
8450 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8451 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
8454 if (!rdev->ops->set_mcast_rate)
8457 memset(mcast_rate, 0, sizeof(mcast_rate));
8459 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8462 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8463 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8466 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
8471 static struct sk_buff *
8472 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
8473 struct wireless_dev *wdev, int approxlen,
8474 u32 portid, u32 seq, enum nl80211_commands cmd,
8475 enum nl80211_attrs attr,
8476 const struct nl80211_vendor_cmd_info *info,
8479 struct sk_buff *skb;
8481 struct nlattr *data;
8483 skb = nlmsg_new(approxlen + 100, gfp);
8487 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8493 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8494 goto nla_put_failure;
8497 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8499 goto nla_put_failure;
8500 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8502 goto nla_put_failure;
8506 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8507 wdev_id(wdev), NL80211_ATTR_PAD))
8508 goto nla_put_failure;
8510 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8511 wdev->netdev->ifindex))
8512 goto nla_put_failure;
8515 data = nla_nest_start(skb, attr);
8517 goto nla_put_failure;
8519 ((void **)skb->cb)[0] = rdev;
8520 ((void **)skb->cb)[1] = hdr;
8521 ((void **)skb->cb)[2] = data;
8530 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
8531 struct wireless_dev *wdev,
8532 enum nl80211_commands cmd,
8533 enum nl80211_attrs attr,
8534 int vendor_event_idx,
8535 int approxlen, gfp_t gfp)
8537 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
8538 const struct nl80211_vendor_cmd_info *info;
8541 case NL80211_CMD_TESTMODE:
8542 if (WARN_ON(vendor_event_idx != -1))
8546 case NL80211_CMD_VENDOR:
8547 if (WARN_ON(vendor_event_idx < 0 ||
8548 vendor_event_idx >= wiphy->n_vendor_events))
8550 info = &wiphy->vendor_events[vendor_event_idx];
8557 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
8558 cmd, attr, info, gfp);
8560 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8562 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8564 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8565 void *hdr = ((void **)skb->cb)[1];
8566 struct nlattr *data = ((void **)skb->cb)[2];
8567 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8569 /* clear CB data for netlink core to own from now on */
8570 memset(skb->cb, 0, sizeof(skb->cb));
8572 nla_nest_end(skb, data);
8573 genlmsg_end(skb, hdr);
8575 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8576 mcgrp = NL80211_MCGRP_VENDOR;
8578 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8581 EXPORT_SYMBOL(__cfg80211_send_event_skb);
8583 #ifdef CONFIG_NL80211_TESTMODE
8584 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8586 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8587 struct wireless_dev *wdev =
8588 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8591 if (!rdev->ops->testmode_cmd)
8595 err = PTR_ERR(wdev);
8599 } else if (wdev->wiphy != &rdev->wiphy) {
8603 if (!info->attrs[NL80211_ATTR_TESTDATA])
8606 rdev->cur_cmd_info = info;
8607 err = rdev_testmode_cmd(rdev, wdev,
8608 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8609 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
8610 rdev->cur_cmd_info = NULL;
8615 static int nl80211_testmode_dump(struct sk_buff *skb,
8616 struct netlink_callback *cb)
8618 struct cfg80211_registered_device *rdev;
8628 * 0 is a valid index, but not valid for args[0],
8629 * so we need to offset by 1.
8631 phy_idx = cb->args[0] - 1;
8633 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8639 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8641 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8642 attrbuf, nl80211_fam.maxattr, nl80211_policy);
8646 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
8648 err = PTR_ERR(rdev);
8651 phy_idx = rdev->wiphy_idx;
8653 if (attrbuf[NL80211_ATTR_TESTDATA])
8654 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
8658 data = nla_data((void *)cb->args[1]);
8659 data_len = nla_len((void *)cb->args[1]);
8662 if (!rdev->ops->testmode_dump) {
8668 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
8669 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8670 NL80211_CMD_TESTMODE);
8671 struct nlattr *tmdata;
8676 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
8677 genlmsg_cancel(skb, hdr);
8681 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8683 genlmsg_cancel(skb, hdr);
8686 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
8687 nla_nest_end(skb, tmdata);
8689 if (err == -ENOBUFS || err == -ENOENT) {
8690 genlmsg_cancel(skb, hdr);
8693 genlmsg_cancel(skb, hdr);
8697 genlmsg_end(skb, hdr);
8702 cb->args[0] = phy_idx + 1;
8709 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8712 struct net_device *dev = info->user_ptr[1];
8713 struct cfg80211_connect_params connect;
8714 struct wiphy *wiphy;
8715 struct cfg80211_cached_keys *connkeys = NULL;
8718 memset(&connect, 0, sizeof(connect));
8720 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8723 if (!info->attrs[NL80211_ATTR_SSID] ||
8724 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8727 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8729 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8730 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8731 NL80211_CMD_CONNECT))
8734 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8736 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8738 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
8739 NL80211_MAX_NR_CIPHER_SUITES);
8743 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8744 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8747 wiphy = &rdev->wiphy;
8749 connect.bg_scan_period = -1;
8750 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8751 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8752 connect.bg_scan_period =
8753 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8756 if (info->attrs[NL80211_ATTR_MAC])
8757 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8758 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8759 connect.bssid_hint =
8760 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
8761 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8762 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8764 if (info->attrs[NL80211_ATTR_IE]) {
8765 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8766 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8769 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8770 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8771 if (connect.mfp != NL80211_MFP_REQUIRED &&
8772 connect.mfp != NL80211_MFP_NO)
8775 connect.mfp = NL80211_MFP_NO;
8778 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8779 connect.prev_bssid =
8780 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8782 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8783 connect.channel = nl80211_get_valid_chan(
8784 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8785 if (!connect.channel)
8787 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
8788 connect.channel_hint = nl80211_get_valid_chan(
8789 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8790 if (!connect.channel_hint)
8794 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8795 connkeys = nl80211_parse_connkeys(rdev,
8796 info->attrs[NL80211_ATTR_KEYS], NULL);
8797 if (IS_ERR(connkeys))
8798 return PTR_ERR(connkeys);
8801 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8802 connect.flags |= ASSOC_REQ_DISABLE_HT;
8804 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8805 memcpy(&connect.ht_capa_mask,
8806 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8807 sizeof(connect.ht_capa_mask));
8809 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8810 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
8814 memcpy(&connect.ht_capa,
8815 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8816 sizeof(connect.ht_capa));
8819 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8820 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8822 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8823 memcpy(&connect.vht_capa_mask,
8824 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8825 sizeof(connect.vht_capa_mask));
8827 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8828 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
8832 memcpy(&connect.vht_capa,
8833 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8834 sizeof(connect.vht_capa));
8837 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8838 if (!((rdev->wiphy.features &
8839 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8840 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8841 !wiphy_ext_feature_isset(&rdev->wiphy,
8842 NL80211_EXT_FEATURE_RRM)) {
8846 connect.flags |= ASSOC_REQ_USE_RRM;
8849 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
8850 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
8855 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8856 /* bss selection makes no sense if bssid is set */
8857 if (connect.bssid) {
8862 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8863 wiphy, &connect.bss_select);
8870 wdev_lock(dev->ieee80211_ptr);
8872 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8873 connect.prev_bssid);
8877 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8878 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
8880 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8881 connect.bssid, ETH_ALEN);
8883 memset(dev->ieee80211_ptr->disconnect_bssid,
8887 wdev_unlock(dev->ieee80211_ptr);
8892 static int nl80211_update_connect_params(struct sk_buff *skb,
8893 struct genl_info *info)
8895 struct cfg80211_connect_params connect = {};
8896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8897 struct net_device *dev = info->user_ptr[1];
8898 struct wireless_dev *wdev = dev->ieee80211_ptr;
8902 if (!rdev->ops->update_connect_params)
8905 if (info->attrs[NL80211_ATTR_IE]) {
8906 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8908 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8909 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8910 changed |= UPDATE_ASSOC_IES;
8913 wdev_lock(dev->ieee80211_ptr);
8914 if (!wdev->current_bss)
8917 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
8918 wdev_unlock(dev->ieee80211_ptr);
8923 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8926 struct net_device *dev = info->user_ptr[1];
8930 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8931 reason = WLAN_REASON_DEAUTH_LEAVING;
8933 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8938 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8939 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8942 wdev_lock(dev->ieee80211_ptr);
8943 ret = cfg80211_disconnect(rdev, dev, reason, true);
8944 wdev_unlock(dev->ieee80211_ptr);
8948 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8954 if (info->attrs[NL80211_ATTR_PID]) {
8955 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8957 net = get_net_ns_by_pid(pid);
8958 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8959 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
8961 net = get_net_ns_by_fd(fd);
8967 return PTR_ERR(net);
8971 /* check if anything to do */
8972 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8973 err = cfg80211_switch_netns(rdev, net);
8979 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8982 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8983 struct cfg80211_pmksa *pmksa) = NULL;
8984 struct net_device *dev = info->user_ptr[1];
8985 struct cfg80211_pmksa pmksa;
8987 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8989 if (!info->attrs[NL80211_ATTR_MAC])
8992 if (!info->attrs[NL80211_ATTR_PMKID])
8995 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8996 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8998 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8999 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9002 switch (info->genlhdr->cmd) {
9003 case NL80211_CMD_SET_PMKSA:
9004 rdev_ops = rdev->ops->set_pmksa;
9006 case NL80211_CMD_DEL_PMKSA:
9007 rdev_ops = rdev->ops->del_pmksa;
9017 return rdev_ops(&rdev->wiphy, dev, &pmksa);
9020 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9023 struct net_device *dev = info->user_ptr[1];
9025 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9026 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9029 if (!rdev->ops->flush_pmksa)
9032 return rdev_flush_pmksa(rdev, dev);
9035 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9038 struct net_device *dev = info->user_ptr[1];
9039 u8 action_code, dialog_token;
9040 u32 peer_capability = 0;
9045 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9046 !rdev->ops->tdls_mgmt)
9049 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9050 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9051 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9052 !info->attrs[NL80211_ATTR_IE] ||
9053 !info->attrs[NL80211_ATTR_MAC])
9056 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9057 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9058 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9059 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
9060 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
9061 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9063 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
9065 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
9066 dialog_token, status_code, peer_capability,
9068 nla_data(info->attrs[NL80211_ATTR_IE]),
9069 nla_len(info->attrs[NL80211_ATTR_IE]));
9072 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9075 struct net_device *dev = info->user_ptr[1];
9076 enum nl80211_tdls_operation operation;
9079 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9080 !rdev->ops->tdls_oper)
9083 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9084 !info->attrs[NL80211_ATTR_MAC])
9087 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9088 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9090 return rdev_tdls_oper(rdev, dev, peer, operation);
9093 static int nl80211_remain_on_channel(struct sk_buff *skb,
9094 struct genl_info *info)
9096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9097 struct wireless_dev *wdev = info->user_ptr[1];
9098 struct cfg80211_chan_def chandef;
9099 struct sk_buff *msg;
9105 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9106 !info->attrs[NL80211_ATTR_DURATION])
9109 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9111 if (!rdev->ops->remain_on_channel ||
9112 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9116 * We should be on that channel for at least a minimum amount of
9117 * time (10ms) but no longer than the driver supports.
9119 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9120 duration > rdev->wiphy.max_remain_on_channel_duration)
9123 err = nl80211_parse_chandef(rdev, info, &chandef);
9127 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9131 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9132 NL80211_CMD_REMAIN_ON_CHANNEL);
9138 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9144 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9146 goto nla_put_failure;
9148 genlmsg_end(msg, hdr);
9150 return genlmsg_reply(msg, info);
9159 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9160 struct genl_info *info)
9162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9163 struct wireless_dev *wdev = info->user_ptr[1];
9166 if (!info->attrs[NL80211_ATTR_COOKIE])
9169 if (!rdev->ops->cancel_remain_on_channel)
9172 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9174 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9177 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9178 struct genl_info *info)
9180 struct cfg80211_bitrate_mask mask;
9181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9182 struct net_device *dev = info->user_ptr[1];
9185 if (!rdev->ops->set_bitrate_mask)
9188 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9192 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
9195 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
9197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9198 struct wireless_dev *wdev = info->user_ptr[1];
9199 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
9201 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9204 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9205 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
9207 switch (wdev->iftype) {
9208 case NL80211_IFTYPE_STATION:
9209 case NL80211_IFTYPE_ADHOC:
9210 case NL80211_IFTYPE_P2P_CLIENT:
9211 case NL80211_IFTYPE_AP:
9212 case NL80211_IFTYPE_AP_VLAN:
9213 case NL80211_IFTYPE_MESH_POINT:
9214 case NL80211_IFTYPE_P2P_GO:
9215 case NL80211_IFTYPE_P2P_DEVICE:
9217 case NL80211_IFTYPE_NAN:
9222 /* not much point in registering if we can't reply */
9223 if (!rdev->ops->mgmt_tx)
9226 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
9227 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9228 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
9231 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
9233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9234 struct wireless_dev *wdev = info->user_ptr[1];
9235 struct cfg80211_chan_def chandef;
9239 struct sk_buff *msg = NULL;
9240 struct cfg80211_mgmt_tx_params params = {
9241 .dont_wait_for_ack =
9242 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9245 if (!info->attrs[NL80211_ATTR_FRAME])
9248 if (!rdev->ops->mgmt_tx)
9251 switch (wdev->iftype) {
9252 case NL80211_IFTYPE_P2P_DEVICE:
9253 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9255 case NL80211_IFTYPE_STATION:
9256 case NL80211_IFTYPE_ADHOC:
9257 case NL80211_IFTYPE_P2P_CLIENT:
9258 case NL80211_IFTYPE_AP:
9259 case NL80211_IFTYPE_AP_VLAN:
9260 case NL80211_IFTYPE_MESH_POINT:
9261 case NL80211_IFTYPE_P2P_GO:
9263 case NL80211_IFTYPE_NAN:
9268 if (info->attrs[NL80211_ATTR_DURATION]) {
9269 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9271 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9274 * We should wait on the channel for at least a minimum amount
9275 * of time (10ms) but no longer than the driver supports.
9277 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9278 params.wait > rdev->wiphy.max_remain_on_channel_duration)
9282 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
9284 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9287 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
9289 /* get the channel if any has been specified, otherwise pass NULL to
9290 * the driver. The latter will use the current one
9292 chandef.chan = NULL;
9293 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9294 err = nl80211_parse_chandef(rdev, info, &chandef);
9299 if (!chandef.chan && params.offchan)
9302 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9303 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9305 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9306 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9309 if (len % sizeof(u16))
9312 params.n_csa_offsets = len / sizeof(u16);
9313 params.csa_offsets =
9314 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9316 /* check that all the offsets fit the frame */
9317 for (i = 0; i < params.n_csa_offsets; i++) {
9318 if (params.csa_offsets[i] >= params.len)
9323 if (!params.dont_wait_for_ack) {
9324 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9328 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9336 params.chan = chandef.chan;
9337 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
9342 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9344 goto nla_put_failure;
9346 genlmsg_end(msg, hdr);
9347 return genlmsg_reply(msg, info);
9359 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9362 struct wireless_dev *wdev = info->user_ptr[1];
9365 if (!info->attrs[NL80211_ATTR_COOKIE])
9368 if (!rdev->ops->mgmt_tx_cancel_wait)
9371 switch (wdev->iftype) {
9372 case NL80211_IFTYPE_STATION:
9373 case NL80211_IFTYPE_ADHOC:
9374 case NL80211_IFTYPE_P2P_CLIENT:
9375 case NL80211_IFTYPE_AP:
9376 case NL80211_IFTYPE_AP_VLAN:
9377 case NL80211_IFTYPE_P2P_GO:
9378 case NL80211_IFTYPE_P2P_DEVICE:
9380 case NL80211_IFTYPE_NAN:
9385 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9387 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
9390 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9392 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9393 struct wireless_dev *wdev;
9394 struct net_device *dev = info->user_ptr[1];
9399 if (!info->attrs[NL80211_ATTR_PS_STATE])
9402 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9404 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9407 wdev = dev->ieee80211_ptr;
9409 if (!rdev->ops->set_power_mgmt)
9412 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9414 if (state == wdev->ps)
9417 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
9423 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9425 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9426 enum nl80211_ps_state ps_state;
9427 struct wireless_dev *wdev;
9428 struct net_device *dev = info->user_ptr[1];
9429 struct sk_buff *msg;
9433 wdev = dev->ieee80211_ptr;
9435 if (!rdev->ops->set_power_mgmt)
9438 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9442 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9443 NL80211_CMD_GET_POWER_SAVE);
9450 ps_state = NL80211_PS_ENABLED;
9452 ps_state = NL80211_PS_DISABLED;
9454 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9455 goto nla_put_failure;
9457 genlmsg_end(msg, hdr);
9458 return genlmsg_reply(msg, info);
9467 static const struct nla_policy
9468 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
9469 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9470 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9471 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
9472 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9473 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9474 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
9475 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
9478 static int nl80211_set_cqm_txe(struct genl_info *info,
9479 u32 rate, u32 pkts, u32 intvl)
9481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9482 struct net_device *dev = info->user_ptr[1];
9483 struct wireless_dev *wdev = dev->ieee80211_ptr;
9485 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
9488 if (!rdev->ops->set_cqm_txe_config)
9491 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9492 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9495 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
9498 static int nl80211_set_cqm_rssi(struct genl_info *info,
9499 s32 threshold, u32 hysteresis)
9501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9502 struct net_device *dev = info->user_ptr[1];
9503 struct wireless_dev *wdev = dev->ieee80211_ptr;
9508 /* disabling - hysteresis should also be zero then */
9512 if (!rdev->ops->set_cqm_rssi_config)
9515 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9516 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9519 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
9522 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9524 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9528 cqm = info->attrs[NL80211_ATTR_CQM];
9532 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9533 nl80211_attr_cqm_policy);
9537 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9538 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
9539 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9540 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
9542 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9545 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9546 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9547 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9548 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9549 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9550 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9552 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9558 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9560 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9561 struct net_device *dev = info->user_ptr[1];
9562 struct ocb_setup setup = {};
9565 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9569 return cfg80211_join_ocb(rdev, dev, &setup);
9572 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9575 struct net_device *dev = info->user_ptr[1];
9577 return cfg80211_leave_ocb(rdev, dev);
9580 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9583 struct net_device *dev = info->user_ptr[1];
9584 struct mesh_config cfg;
9585 struct mesh_setup setup;
9588 /* start with default */
9589 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
9590 memcpy(&setup, &default_mesh_setup, sizeof(setup));
9592 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
9593 /* and parse parameters if given */
9594 err = nl80211_parse_mesh_config(info, &cfg, NULL);
9599 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9600 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9603 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9604 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9606 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9607 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9608 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9611 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9612 setup.beacon_interval =
9613 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9615 err = cfg80211_validate_beacon_int(rdev,
9616 NL80211_IFTYPE_MESH_POINT,
9617 setup.beacon_interval);
9622 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9624 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9625 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9629 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9630 /* parse additional setup parameters if given */
9631 err = nl80211_parse_mesh_setup(info, &setup);
9637 cfg.auto_open_plinks = false;
9639 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9640 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9644 /* cfg80211_join_mesh() will sort it out */
9645 setup.chandef.chan = NULL;
9648 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9649 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9651 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9652 struct ieee80211_supported_band *sband;
9654 if (!setup.chandef.chan)
9657 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9659 err = ieee80211_get_ratemask(sband, rates, n_rates,
9660 &setup.basic_rates);
9665 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9666 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9670 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9671 &setup.beacon_rate);
9676 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
9679 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9681 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9682 struct net_device *dev = info->user_ptr[1];
9684 return cfg80211_leave_mesh(rdev, dev);
9688 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9689 struct cfg80211_registered_device *rdev)
9691 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
9692 struct nlattr *nl_pats, *nl_pat;
9695 if (!wowlan->n_patterns)
9698 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9702 for (i = 0; i < wowlan->n_patterns; i++) {
9703 nl_pat = nla_nest_start(msg, i + 1);
9706 pat_len = wowlan->patterns[i].pattern_len;
9707 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
9708 wowlan->patterns[i].mask) ||
9709 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9710 wowlan->patterns[i].pattern) ||
9711 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9712 wowlan->patterns[i].pkt_offset))
9714 nla_nest_end(msg, nl_pat);
9716 nla_nest_end(msg, nl_pats);
9721 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9722 struct cfg80211_wowlan_tcp *tcp)
9724 struct nlattr *nl_tcp;
9729 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9733 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9734 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
9735 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9736 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9737 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9738 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9739 tcp->payload_len, tcp->payload) ||
9740 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9741 tcp->data_interval) ||
9742 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9743 tcp->wake_len, tcp->wake_data) ||
9744 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9745 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9748 if (tcp->payload_seq.len &&
9749 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9750 sizeof(tcp->payload_seq), &tcp->payload_seq))
9753 if (tcp->payload_tok.len &&
9754 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9755 sizeof(tcp->payload_tok) + tcp->tokens_size,
9759 nla_nest_end(msg, nl_tcp);
9764 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9765 struct cfg80211_sched_scan_request *req)
9767 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
9773 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9777 if (req->n_scan_plans == 1 &&
9778 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9779 req->scan_plans[0].interval * 1000))
9782 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9785 if (req->relative_rssi_set) {
9786 struct nl80211_bss_select_rssi_adjust rssi_adjust;
9788 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
9789 req->relative_rssi))
9792 rssi_adjust.band = req->rssi_adjust.band;
9793 rssi_adjust.delta = req->rssi_adjust.delta;
9794 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
9795 sizeof(rssi_adjust), &rssi_adjust))
9799 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9803 for (i = 0; i < req->n_channels; i++) {
9804 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9808 nla_nest_end(msg, freqs);
9810 if (req->n_match_sets) {
9811 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9815 for (i = 0; i < req->n_match_sets; i++) {
9816 match = nla_nest_start(msg, i);
9820 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9821 req->match_sets[i].ssid.ssid_len,
9822 req->match_sets[i].ssid.ssid))
9824 nla_nest_end(msg, match);
9826 nla_nest_end(msg, matches);
9829 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9833 for (i = 0; i < req->n_scan_plans; i++) {
9834 scan_plan = nla_nest_start(msg, i + 1);
9839 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9840 req->scan_plans[i].interval) ||
9841 (req->scan_plans[i].iterations &&
9842 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9843 req->scan_plans[i].iterations)))
9845 nla_nest_end(msg, scan_plan);
9847 nla_nest_end(msg, scan_plans);
9849 nla_nest_end(msg, nd);
9854 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9857 struct sk_buff *msg;
9859 u32 size = NLMSG_DEFAULT_SIZE;
9861 if (!rdev->wiphy.wowlan)
9864 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
9865 /* adjust size to have room for all the data */
9866 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9867 rdev->wiphy.wowlan_config->tcp->payload_len +
9868 rdev->wiphy.wowlan_config->tcp->wake_len +
9869 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
9872 msg = nlmsg_new(size, GFP_KERNEL);
9876 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9877 NL80211_CMD_GET_WOWLAN);
9879 goto nla_put_failure;
9881 if (rdev->wiphy.wowlan_config) {
9882 struct nlattr *nl_wowlan;
9884 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9886 goto nla_put_failure;
9888 if ((rdev->wiphy.wowlan_config->any &&
9889 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9890 (rdev->wiphy.wowlan_config->disconnect &&
9891 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9892 (rdev->wiphy.wowlan_config->magic_pkt &&
9893 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9894 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9895 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9896 (rdev->wiphy.wowlan_config->eap_identity_req &&
9897 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9898 (rdev->wiphy.wowlan_config->four_way_handshake &&
9899 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9900 (rdev->wiphy.wowlan_config->rfkill_release &&
9901 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9902 goto nla_put_failure;
9904 if (nl80211_send_wowlan_patterns(msg, rdev))
9905 goto nla_put_failure;
9907 if (nl80211_send_wowlan_tcp(msg,
9908 rdev->wiphy.wowlan_config->tcp))
9909 goto nla_put_failure;
9911 if (nl80211_send_wowlan_nd(
9913 rdev->wiphy.wowlan_config->nd_config))
9914 goto nla_put_failure;
9916 nla_nest_end(msg, nl_wowlan);
9919 genlmsg_end(msg, hdr);
9920 return genlmsg_reply(msg, info);
9927 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9928 struct nlattr *attr,
9929 struct cfg80211_wowlan *trig)
9931 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9932 struct cfg80211_wowlan_tcp *cfg;
9933 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9934 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9936 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9939 if (!rdev->wiphy.wowlan->tcp)
9942 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
9943 nl80211_wowlan_tcp_policy);
9947 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9948 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9949 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9950 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9951 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9952 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9953 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9954 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9957 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
9958 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
9961 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
9962 rdev->wiphy.wowlan->tcp->data_interval_max ||
9963 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
9966 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
9967 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
9970 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9971 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9974 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9975 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9977 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9978 tokens_size = tokln - sizeof(*tok);
9980 if (!tok->len || tokens_size % tok->len)
9982 if (!rdev->wiphy.wowlan->tcp->tok)
9984 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9986 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9988 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9990 if (tok->offset + tok->len > data_size)
9994 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9995 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9996 if (!rdev->wiphy.wowlan->tcp->seq)
9998 if (seq->len == 0 || seq->len > 4)
10000 if (seq->len + seq->offset > data_size)
10004 size = sizeof(*cfg);
10006 size += wake_size + wake_mask_size;
10007 size += tokens_size;
10009 cfg = kzalloc(size, GFP_KERNEL);
10012 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10013 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
10014 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10016 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10017 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10021 /* allocate a socket and port for it and use it */
10022 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10023 IPPROTO_TCP, &cfg->sock, 1);
10028 if (inet_csk_get_port(cfg->sock->sk, port)) {
10029 sock_release(cfg->sock);
10031 return -EADDRINUSE;
10033 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10039 cfg->src_port = port;
10042 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10043 cfg->payload_len = data_size;
10044 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10045 memcpy((void *)cfg->payload,
10046 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10049 cfg->payload_seq = *seq;
10050 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10051 cfg->wake_len = wake_size;
10052 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10053 memcpy((void *)cfg->wake_data,
10054 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10056 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10057 data_size + wake_size;
10058 memcpy((void *)cfg->wake_mask,
10059 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10062 cfg->tokens_size = tokens_size;
10063 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10071 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10072 const struct wiphy_wowlan_support *wowlan,
10073 struct nlattr *attr,
10074 struct cfg80211_wowlan *trig)
10076 struct nlattr **tb;
10079 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10083 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10088 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy);
10092 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10093 wowlan->max_nd_match_sets);
10094 err = PTR_ERR_OR_ZERO(trig->nd_config);
10096 trig->nd_config = NULL;
10103 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10106 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
10107 struct cfg80211_wowlan new_triggers = {};
10108 struct cfg80211_wowlan *ntrig;
10109 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
10111 bool prev_enabled = rdev->wiphy.wowlan_config;
10112 bool regular = false;
10115 return -EOPNOTSUPP;
10117 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10118 cfg80211_rdev_free_wowlan(rdev);
10119 rdev->wiphy.wowlan_config = NULL;
10123 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10124 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
10125 nl80211_wowlan_policy);
10129 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10130 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10132 new_triggers.any = true;
10135 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10136 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10138 new_triggers.disconnect = true;
10142 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10143 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10145 new_triggers.magic_pkt = true;
10149 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10152 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10153 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10155 new_triggers.gtk_rekey_failure = true;
10159 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10160 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10162 new_triggers.eap_identity_req = true;
10166 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10167 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10169 new_triggers.four_way_handshake = true;
10173 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10174 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10176 new_triggers.rfkill_release = true;
10180 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10181 struct nlattr *pat;
10182 int n_patterns = 0;
10183 int rem, pat_len, mask_len, pkt_offset;
10184 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10188 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10191 if (n_patterns > wowlan->n_patterns)
10194 new_triggers.patterns = kcalloc(n_patterns,
10195 sizeof(new_triggers.patterns[0]),
10197 if (!new_triggers.patterns)
10200 new_triggers.n_patterns = n_patterns;
10203 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10207 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10210 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10211 !pat_tb[NL80211_PKTPAT_PATTERN])
10213 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10214 mask_len = DIV_ROUND_UP(pat_len, 8);
10215 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10217 if (pat_len > wowlan->pattern_max_len ||
10218 pat_len < wowlan->pattern_min_len)
10221 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10224 pkt_offset = nla_get_u32(
10225 pat_tb[NL80211_PKTPAT_OFFSET]);
10226 if (pkt_offset > wowlan->max_pkt_offset)
10228 new_triggers.patterns[i].pkt_offset = pkt_offset;
10230 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10235 new_triggers.patterns[i].mask = mask_pat;
10236 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10238 mask_pat += mask_len;
10239 new_triggers.patterns[i].pattern = mask_pat;
10240 new_triggers.patterns[i].pattern_len = pat_len;
10242 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10248 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
10250 err = nl80211_parse_wowlan_tcp(
10251 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10257 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
10259 err = nl80211_parse_wowlan_nd(
10260 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10266 /* The 'any' trigger means the device continues operating more or less
10267 * as in its normal operation mode and wakes up the host on most of the
10268 * normal interrupts (like packet RX, ...)
10269 * It therefore makes little sense to combine with the more constrained
10270 * wakeup trigger modes.
10272 if (new_triggers.any && regular) {
10277 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10282 cfg80211_rdev_free_wowlan(rdev);
10283 rdev->wiphy.wowlan_config = ntrig;
10286 if (rdev->ops->set_wakeup &&
10287 prev_enabled != !!rdev->wiphy.wowlan_config)
10288 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
10292 for (i = 0; i < new_triggers.n_patterns; i++)
10293 kfree(new_triggers.patterns[i].mask);
10294 kfree(new_triggers.patterns);
10295 if (new_triggers.tcp && new_triggers.tcp->sock)
10296 sock_release(new_triggers.tcp->sock);
10297 kfree(new_triggers.tcp);
10298 kfree(new_triggers.nd_config);
10303 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10304 struct cfg80211_registered_device *rdev)
10306 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10308 struct cfg80211_coalesce_rules *rule;
10310 if (!rdev->coalesce->n_rules)
10313 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10317 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10318 nl_rule = nla_nest_start(msg, i + 1);
10322 rule = &rdev->coalesce->rules[i];
10323 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10327 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10331 nl_pats = nla_nest_start(msg,
10332 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10336 for (j = 0; j < rule->n_patterns; j++) {
10337 nl_pat = nla_nest_start(msg, j + 1);
10340 pat_len = rule->patterns[j].pattern_len;
10341 if (nla_put(msg, NL80211_PKTPAT_MASK,
10342 DIV_ROUND_UP(pat_len, 8),
10343 rule->patterns[j].mask) ||
10344 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10345 rule->patterns[j].pattern) ||
10346 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10347 rule->patterns[j].pkt_offset))
10349 nla_nest_end(msg, nl_pat);
10351 nla_nest_end(msg, nl_pats);
10352 nla_nest_end(msg, nl_rule);
10354 nla_nest_end(msg, nl_rules);
10359 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10362 struct sk_buff *msg;
10365 if (!rdev->wiphy.coalesce)
10366 return -EOPNOTSUPP;
10368 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10372 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10373 NL80211_CMD_GET_COALESCE);
10375 goto nla_put_failure;
10377 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10378 goto nla_put_failure;
10380 genlmsg_end(msg, hdr);
10381 return genlmsg_reply(msg, info);
10388 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10390 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10392 struct cfg80211_coalesce_rules *rule;
10397 for (i = 0; i < coalesce->n_rules; i++) {
10398 rule = &coalesce->rules[i];
10399 for (j = 0; j < rule->n_patterns; j++)
10400 kfree(rule->patterns[j].mask);
10401 kfree(rule->patterns);
10403 kfree(coalesce->rules);
10405 rdev->coalesce = NULL;
10408 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10409 struct nlattr *rule,
10410 struct cfg80211_coalesce_rules *new_rule)
10413 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10414 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10415 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10416 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10418 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
10419 nl80211_coalesce_policy);
10423 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10425 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10426 if (new_rule->delay > coalesce->max_delay)
10429 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10430 new_rule->condition =
10431 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10432 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10433 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10436 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10439 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10442 if (n_patterns > coalesce->n_patterns)
10445 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10447 if (!new_rule->patterns)
10450 new_rule->n_patterns = n_patterns;
10453 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10457 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL);
10458 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10459 !pat_tb[NL80211_PKTPAT_PATTERN])
10461 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10462 mask_len = DIV_ROUND_UP(pat_len, 8);
10463 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10465 if (pat_len > coalesce->pattern_max_len ||
10466 pat_len < coalesce->pattern_min_len)
10469 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10472 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10473 if (pkt_offset > coalesce->max_pkt_offset)
10475 new_rule->patterns[i].pkt_offset = pkt_offset;
10477 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10481 new_rule->patterns[i].mask = mask_pat;
10482 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10485 mask_pat += mask_len;
10486 new_rule->patterns[i].pattern = mask_pat;
10487 new_rule->patterns[i].pattern_len = pat_len;
10488 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10496 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10498 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10499 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10500 struct cfg80211_coalesce new_coalesce = {};
10501 struct cfg80211_coalesce *n_coalesce;
10502 int err, rem_rule, n_rules = 0, i, j;
10503 struct nlattr *rule;
10504 struct cfg80211_coalesce_rules *tmp_rule;
10506 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10507 return -EOPNOTSUPP;
10509 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10510 cfg80211_rdev_free_coalesce(rdev);
10511 rdev_set_coalesce(rdev, NULL);
10515 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10518 if (n_rules > coalesce->n_rules)
10521 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10523 if (!new_coalesce.rules)
10526 new_coalesce.n_rules = n_rules;
10529 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10531 err = nl80211_parse_coalesce_rule(rdev, rule,
10532 &new_coalesce.rules[i]);
10539 err = rdev_set_coalesce(rdev, &new_coalesce);
10543 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10548 cfg80211_rdev_free_coalesce(rdev);
10549 rdev->coalesce = n_coalesce;
10553 for (i = 0; i < new_coalesce.n_rules; i++) {
10554 tmp_rule = &new_coalesce.rules[i];
10555 for (j = 0; j < tmp_rule->n_patterns; j++)
10556 kfree(tmp_rule->patterns[j].mask);
10557 kfree(tmp_rule->patterns);
10559 kfree(new_coalesce.rules);
10564 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10566 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10567 struct net_device *dev = info->user_ptr[1];
10568 struct wireless_dev *wdev = dev->ieee80211_ptr;
10569 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10570 struct cfg80211_gtk_rekey_data rekey_data;
10573 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10576 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10577 info->attrs[NL80211_ATTR_REKEY_DATA],
10578 nl80211_rekey_policy);
10582 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10584 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10586 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10589 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10590 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10591 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
10594 if (!wdev->current_bss) {
10599 if (!rdev->ops->set_rekey_data) {
10604 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
10610 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10611 struct genl_info *info)
10613 struct net_device *dev = info->user_ptr[1];
10614 struct wireless_dev *wdev = dev->ieee80211_ptr;
10616 if (wdev->iftype != NL80211_IFTYPE_AP &&
10617 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10620 if (wdev->ap_unexpected_nlportid)
10623 wdev->ap_unexpected_nlportid = info->snd_portid;
10627 static int nl80211_probe_client(struct sk_buff *skb,
10628 struct genl_info *info)
10630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10631 struct net_device *dev = info->user_ptr[1];
10632 struct wireless_dev *wdev = dev->ieee80211_ptr;
10633 struct sk_buff *msg;
10639 if (wdev->iftype != NL80211_IFTYPE_AP &&
10640 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10641 return -EOPNOTSUPP;
10643 if (!info->attrs[NL80211_ATTR_MAC])
10646 if (!rdev->ops->probe_client)
10647 return -EOPNOTSUPP;
10649 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10653 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10654 NL80211_CMD_PROBE_CLIENT);
10660 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10662 err = rdev_probe_client(rdev, dev, addr, &cookie);
10666 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10668 goto nla_put_failure;
10670 genlmsg_end(msg, hdr);
10672 return genlmsg_reply(msg, info);
10681 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10684 struct cfg80211_beacon_registration *reg, *nreg;
10687 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10688 return -EOPNOTSUPP;
10690 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10694 /* First, check if already registered. */
10695 spin_lock_bh(&rdev->beacon_registrations_lock);
10696 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10697 if (reg->nlportid == info->snd_portid) {
10702 /* Add it to the list */
10703 nreg->nlportid = info->snd_portid;
10704 list_add(&nreg->list, &rdev->beacon_registrations);
10706 spin_unlock_bh(&rdev->beacon_registrations_lock);
10710 spin_unlock_bh(&rdev->beacon_registrations_lock);
10715 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10717 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10718 struct wireless_dev *wdev = info->user_ptr[1];
10721 if (!rdev->ops->start_p2p_device)
10722 return -EOPNOTSUPP;
10724 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10725 return -EOPNOTSUPP;
10727 if (wdev_running(wdev))
10730 if (rfkill_blocked(rdev->rfkill))
10733 err = rdev_start_p2p_device(rdev, wdev);
10737 wdev->is_running = true;
10743 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10745 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10746 struct wireless_dev *wdev = info->user_ptr[1];
10748 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10749 return -EOPNOTSUPP;
10751 if (!rdev->ops->stop_p2p_device)
10752 return -EOPNOTSUPP;
10754 cfg80211_stop_p2p_device(rdev, wdev);
10759 static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
10761 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10762 struct wireless_dev *wdev = info->user_ptr[1];
10763 struct cfg80211_nan_conf conf = {};
10766 if (wdev->iftype != NL80211_IFTYPE_NAN)
10767 return -EOPNOTSUPP;
10769 if (wdev_running(wdev))
10772 if (rfkill_blocked(rdev->rfkill))
10775 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
10779 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
10780 if (!conf.master_pref)
10783 if (info->attrs[NL80211_ATTR_BANDS]) {
10784 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
10786 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
10787 return -EOPNOTSUPP;
10789 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
10792 conf.bands = bands;
10795 err = rdev_start_nan(rdev, wdev, &conf);
10799 wdev->is_running = true;
10805 static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
10807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10808 struct wireless_dev *wdev = info->user_ptr[1];
10810 if (wdev->iftype != NL80211_IFTYPE_NAN)
10811 return -EOPNOTSUPP;
10813 cfg80211_stop_nan(rdev, wdev);
10818 static int validate_nan_filter(struct nlattr *filter_attr)
10820 struct nlattr *attr;
10821 int len = 0, n_entries = 0, rem;
10823 nla_for_each_nested(attr, filter_attr, rem) {
10824 len += nla_len(attr);
10834 static int handle_nan_filter(struct nlattr *attr_filter,
10835 struct cfg80211_nan_func *func,
10838 struct nlattr *attr;
10839 int n_entries, rem, i;
10840 struct cfg80211_nan_func_filter *filter;
10842 n_entries = validate_nan_filter(attr_filter);
10846 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
10848 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
10853 nla_for_each_nested(attr, attr_filter, rem) {
10854 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
10855 filter[i].len = nla_len(attr);
10859 func->num_tx_filters = n_entries;
10860 func->tx_filters = filter;
10862 func->num_rx_filters = n_entries;
10863 func->rx_filters = filter;
10869 static int nl80211_nan_add_func(struct sk_buff *skb,
10870 struct genl_info *info)
10872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10873 struct wireless_dev *wdev = info->user_ptr[1];
10874 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
10875 struct cfg80211_nan_func *func;
10876 struct sk_buff *msg = NULL;
10880 if (wdev->iftype != NL80211_IFTYPE_NAN)
10881 return -EOPNOTSUPP;
10883 if (!wdev_running(wdev))
10886 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
10889 if (wdev->owner_nlportid &&
10890 wdev->owner_nlportid != info->snd_portid)
10893 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
10894 info->attrs[NL80211_ATTR_NAN_FUNC],
10895 nl80211_nan_func_policy);
10899 func = kzalloc(sizeof(*func), GFP_KERNEL);
10903 func->cookie = wdev->wiphy->cookie_counter++;
10905 if (!tb[NL80211_NAN_FUNC_TYPE] ||
10906 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
10912 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
10914 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
10919 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
10920 sizeof(func->service_id));
10922 func->close_range =
10923 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
10925 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
10926 func->serv_spec_info_len =
10927 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
10928 func->serv_spec_info =
10929 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
10930 func->serv_spec_info_len,
10932 if (!func->serv_spec_info) {
10938 if (tb[NL80211_NAN_FUNC_TTL])
10939 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
10941 switch (func->type) {
10942 case NL80211_NAN_FUNC_PUBLISH:
10943 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
10948 func->publish_type =
10949 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
10950 func->publish_bcast =
10951 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
10953 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
10954 func->publish_bcast) {
10959 case NL80211_NAN_FUNC_SUBSCRIBE:
10960 func->subscribe_active =
10961 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
10963 case NL80211_NAN_FUNC_FOLLOW_UP:
10964 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
10965 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) {
10970 func->followup_id =
10971 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
10972 func->followup_reqid =
10973 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
10974 memcpy(func->followup_dest.addr,
10975 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
10976 sizeof(func->followup_dest.addr));
10987 if (tb[NL80211_NAN_FUNC_SRF]) {
10988 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
10990 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
10991 tb[NL80211_NAN_FUNC_SRF],
10992 nl80211_nan_srf_policy);
10996 func->srf_include =
10997 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
10999 if (srf_tb[NL80211_NAN_SRF_BF]) {
11000 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11001 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11007 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11009 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11010 func->srf_bf_len, GFP_KERNEL);
11011 if (!func->srf_bf) {
11017 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11019 struct nlattr *attr, *mac_attr =
11020 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11021 int n_entries, rem, i = 0;
11028 n_entries = validate_acl_mac_addrs(mac_attr);
11029 if (n_entries <= 0) {
11034 func->srf_num_macs = n_entries;
11036 kzalloc(sizeof(*func->srf_macs) * n_entries,
11038 if (!func->srf_macs) {
11043 nla_for_each_nested(attr, mac_attr, rem)
11044 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11045 sizeof(*func->srf_macs));
11049 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11050 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11056 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11057 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11063 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11069 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11070 NL80211_CMD_ADD_NAN_FUNCTION);
11071 /* This can't really happen - we just allocated 4KB */
11072 if (WARN_ON(!hdr)) {
11077 err = rdev_add_nan_func(rdev, wdev, func);
11080 cfg80211_free_nan_func(func);
11085 /* propagate the instance id and cookie to userspace */
11086 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11088 goto nla_put_failure;
11090 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11092 goto nla_put_failure;
11094 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11095 func->instance_id))
11096 goto nla_put_failure;
11098 nla_nest_end(msg, func_attr);
11100 genlmsg_end(msg, hdr);
11101 return genlmsg_reply(msg, info);
11108 static int nl80211_nan_del_func(struct sk_buff *skb,
11109 struct genl_info *info)
11111 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11112 struct wireless_dev *wdev = info->user_ptr[1];
11115 if (wdev->iftype != NL80211_IFTYPE_NAN)
11116 return -EOPNOTSUPP;
11118 if (!wdev_running(wdev))
11121 if (!info->attrs[NL80211_ATTR_COOKIE])
11124 if (wdev->owner_nlportid &&
11125 wdev->owner_nlportid != info->snd_portid)
11128 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11130 rdev_del_nan_func(rdev, wdev, cookie);
11135 static int nl80211_nan_change_config(struct sk_buff *skb,
11136 struct genl_info *info)
11138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11139 struct wireless_dev *wdev = info->user_ptr[1];
11140 struct cfg80211_nan_conf conf = {};
11143 if (wdev->iftype != NL80211_IFTYPE_NAN)
11144 return -EOPNOTSUPP;
11146 if (!wdev_running(wdev))
11149 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11151 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11152 if (conf.master_pref <= 1 || conf.master_pref == 255)
11155 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11158 if (info->attrs[NL80211_ATTR_BANDS]) {
11159 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11161 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11162 return -EOPNOTSUPP;
11164 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11167 conf.bands = bands;
11168 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
11174 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11177 void cfg80211_nan_match(struct wireless_dev *wdev,
11178 struct cfg80211_nan_match_params *match, gfp_t gfp)
11180 struct wiphy *wiphy = wdev->wiphy;
11181 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11182 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11183 struct sk_buff *msg;
11186 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11189 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11193 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11199 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11200 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11201 wdev->netdev->ifindex)) ||
11202 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11204 goto nla_put_failure;
11206 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11207 NL80211_ATTR_PAD) ||
11208 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11209 goto nla_put_failure;
11211 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11213 goto nla_put_failure;
11215 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11216 if (!local_func_attr)
11217 goto nla_put_failure;
11219 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11220 goto nla_put_failure;
11222 nla_nest_end(msg, local_func_attr);
11224 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11225 if (!peer_func_attr)
11226 goto nla_put_failure;
11228 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11229 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11230 goto nla_put_failure;
11232 if (match->info && match->info_len &&
11233 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11235 goto nla_put_failure;
11237 nla_nest_end(msg, peer_func_attr);
11238 nla_nest_end(msg, match_attr);
11239 genlmsg_end(msg, hdr);
11241 if (!wdev->owner_nlportid)
11242 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11243 msg, 0, NL80211_MCGRP_NAN, gfp);
11245 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11246 wdev->owner_nlportid);
11253 EXPORT_SYMBOL(cfg80211_nan_match);
11255 void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11257 enum nl80211_nan_func_term_reason reason,
11258 u64 cookie, gfp_t gfp)
11260 struct wiphy *wiphy = wdev->wiphy;
11261 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11262 struct sk_buff *msg;
11263 struct nlattr *func_attr;
11266 if (WARN_ON(!inst_id))
11269 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11273 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11279 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11280 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11281 wdev->netdev->ifindex)) ||
11282 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11284 goto nla_put_failure;
11286 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11288 goto nla_put_failure;
11290 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11292 goto nla_put_failure;
11294 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11295 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11296 goto nla_put_failure;
11298 nla_nest_end(msg, func_attr);
11299 genlmsg_end(msg, hdr);
11301 if (!wdev->owner_nlportid)
11302 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11303 msg, 0, NL80211_MCGRP_NAN, gfp);
11305 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11306 wdev->owner_nlportid);
11313 EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11315 static int nl80211_get_protocol_features(struct sk_buff *skb,
11316 struct genl_info *info)
11319 struct sk_buff *msg;
11321 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11325 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11326 NL80211_CMD_GET_PROTOCOL_FEATURES);
11328 goto nla_put_failure;
11330 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11331 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11332 goto nla_put_failure;
11334 genlmsg_end(msg, hdr);
11335 return genlmsg_reply(msg, info);
11342 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11344 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11345 struct cfg80211_update_ft_ies_params ft_params;
11346 struct net_device *dev = info->user_ptr[1];
11348 if (!rdev->ops->update_ft_ies)
11349 return -EOPNOTSUPP;
11351 if (!info->attrs[NL80211_ATTR_MDID] ||
11352 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11355 memset(&ft_params, 0, sizeof(ft_params));
11356 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11357 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11358 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11360 return rdev_update_ft_ies(rdev, dev, &ft_params);
11363 static int nl80211_crit_protocol_start(struct sk_buff *skb,
11364 struct genl_info *info)
11366 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11367 struct wireless_dev *wdev = info->user_ptr[1];
11368 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11372 if (!rdev->ops->crit_proto_start)
11373 return -EOPNOTSUPP;
11375 if (WARN_ON(!rdev->ops->crit_proto_stop))
11378 if (rdev->crit_proto_nlportid)
11381 /* determine protocol if provided */
11382 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11383 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11385 if (proto >= NUM_NL80211_CRIT_PROTO)
11388 /* timeout must be provided */
11389 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11393 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11395 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11398 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11400 rdev->crit_proto_nlportid = info->snd_portid;
11405 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11406 struct genl_info *info)
11408 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11409 struct wireless_dev *wdev = info->user_ptr[1];
11411 if (!rdev->ops->crit_proto_stop)
11412 return -EOPNOTSUPP;
11414 if (rdev->crit_proto_nlportid) {
11415 rdev->crit_proto_nlportid = 0;
11416 rdev_crit_proto_stop(rdev, wdev);
11421 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11423 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11424 struct wireless_dev *wdev =
11425 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11429 if (!rdev->wiphy.vendor_commands)
11430 return -EOPNOTSUPP;
11432 if (IS_ERR(wdev)) {
11433 err = PTR_ERR(wdev);
11434 if (err != -EINVAL)
11437 } else if (wdev->wiphy != &rdev->wiphy) {
11441 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11442 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11445 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11446 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11447 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11448 const struct wiphy_vendor_command *vcmd;
11452 vcmd = &rdev->wiphy.vendor_commands[i];
11454 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11457 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11458 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11461 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11465 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
11466 if (!wdev_running(wdev))
11471 return -EOPNOTSUPP;
11476 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11477 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11478 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11481 rdev->cur_cmd_info = info;
11482 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11484 rdev->cur_cmd_info = NULL;
11488 return -EOPNOTSUPP;
11491 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11492 struct netlink_callback *cb,
11493 struct cfg80211_registered_device **rdev,
11494 struct wireless_dev **wdev)
11496 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
11502 unsigned int data_len = 0;
11505 /* subtract the 1 again here */
11506 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11507 struct wireless_dev *tmp;
11511 *rdev = wiphy_to_rdev(wiphy);
11515 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
11516 if (tmp->identifier == cb->args[1] - 1) {
11523 /* keep rtnl locked in successful case */
11527 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
11528 attrbuf, nl80211_fam.maxattr, nl80211_policy);
11532 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
11533 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
11536 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
11540 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
11542 return PTR_ERR(*rdev);
11544 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11545 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
11547 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11548 const struct wiphy_vendor_command *vcmd;
11550 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11552 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11556 return -EOPNOTSUPP;
11563 return -EOPNOTSUPP;
11565 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11566 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11567 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11570 /* 0 is the first index - add 1 to parse only once */
11571 cb->args[0] = (*rdev)->wiphy_idx + 1;
11572 /* add 1 to know if it was NULL */
11573 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11574 cb->args[2] = vcmd_idx;
11575 cb->args[3] = (unsigned long)data;
11576 cb->args[4] = data_len;
11578 /* keep rtnl locked in successful case */
11582 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11583 struct netlink_callback *cb)
11585 struct cfg80211_registered_device *rdev;
11586 struct wireless_dev *wdev;
11587 unsigned int vcmd_idx;
11588 const struct wiphy_vendor_command *vcmd;
11592 struct nlattr *vendor_data;
11595 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11599 vcmd_idx = cb->args[2];
11600 data = (void *)cb->args[3];
11601 data_len = cb->args[4];
11602 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11604 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11605 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11610 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11616 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
11617 if (!wdev_running(wdev)) {
11625 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11626 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11627 NL80211_CMD_VENDOR);
11631 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11632 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11634 NL80211_ATTR_PAD))) {
11635 genlmsg_cancel(skb, hdr);
11639 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11640 if (!vendor_data) {
11641 genlmsg_cancel(skb, hdr);
11645 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11646 (unsigned long *)&cb->args[5]);
11647 nla_nest_end(skb, vendor_data);
11649 if (err == -ENOBUFS || err == -ENOENT) {
11650 genlmsg_cancel(skb, hdr);
11653 genlmsg_cancel(skb, hdr);
11657 genlmsg_end(skb, hdr);
11666 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
11667 enum nl80211_commands cmd,
11668 enum nl80211_attrs attr,
11671 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11673 if (WARN_ON(!rdev->cur_cmd_info))
11676 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
11677 rdev->cur_cmd_info->snd_portid,
11678 rdev->cur_cmd_info->snd_seq,
11679 cmd, attr, NULL, GFP_KERNEL);
11681 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
11683 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
11685 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
11686 void *hdr = ((void **)skb->cb)[1];
11687 struct nlattr *data = ((void **)skb->cb)[2];
11689 /* clear CB data for netlink core to own from now on */
11690 memset(skb->cb, 0, sizeof(skb->cb));
11692 if (WARN_ON(!rdev->cur_cmd_info)) {
11697 nla_nest_end(skb, data);
11698 genlmsg_end(skb, hdr);
11699 return genlmsg_reply(skb, rdev->cur_cmd_info);
11701 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
11703 static int nl80211_set_qos_map(struct sk_buff *skb,
11704 struct genl_info *info)
11706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11707 struct cfg80211_qos_map *qos_map = NULL;
11708 struct net_device *dev = info->user_ptr[1];
11709 u8 *pos, len, num_des, des_len, des;
11712 if (!rdev->ops->set_qos_map)
11713 return -EOPNOTSUPP;
11715 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
11716 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
11717 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
11719 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
11720 len > IEEE80211_QOS_MAP_LEN_MAX)
11723 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
11727 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
11729 des_len = num_des *
11730 sizeof(struct cfg80211_dscp_exception);
11731 memcpy(qos_map->dscp_exception, pos, des_len);
11732 qos_map->num_des = num_des;
11733 for (des = 0; des < num_des; des++) {
11734 if (qos_map->dscp_exception[des].up > 7) {
11741 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
11744 wdev_lock(dev->ieee80211_ptr);
11745 ret = nl80211_key_allowed(dev->ieee80211_ptr);
11747 ret = rdev_set_qos_map(rdev, dev, qos_map);
11748 wdev_unlock(dev->ieee80211_ptr);
11754 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
11756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11757 struct net_device *dev = info->user_ptr[1];
11758 struct wireless_dev *wdev = dev->ieee80211_ptr;
11761 u16 admitted_time = 0;
11764 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
11765 return -EOPNOTSUPP;
11767 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
11768 !info->attrs[NL80211_ATTR_USER_PRIO])
11771 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11772 if (tsid >= IEEE80211_NUM_TIDS)
11775 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
11776 if (up >= IEEE80211_NUM_UPS)
11779 /* WMM uses TIDs 0-7 even for TSPEC */
11780 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
11781 /* TODO: handle 802.11 TSPEC/admission control
11782 * need more attributes for that (e.g. BA session requirement);
11783 * change the WMM adminssion test above to allow both then
11788 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11790 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
11792 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
11793 if (!admitted_time)
11798 switch (wdev->iftype) {
11799 case NL80211_IFTYPE_STATION:
11800 case NL80211_IFTYPE_P2P_CLIENT:
11801 if (wdev->current_bss)
11810 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
11817 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
11819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11820 struct net_device *dev = info->user_ptr[1];
11821 struct wireless_dev *wdev = dev->ieee80211_ptr;
11826 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
11829 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11830 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11833 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
11839 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
11840 struct genl_info *info)
11842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11843 struct net_device *dev = info->user_ptr[1];
11844 struct wireless_dev *wdev = dev->ieee80211_ptr;
11845 struct cfg80211_chan_def chandef = {};
11850 if (!rdev->ops->tdls_channel_switch ||
11851 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11852 return -EOPNOTSUPP;
11854 switch (dev->ieee80211_ptr->iftype) {
11855 case NL80211_IFTYPE_STATION:
11856 case NL80211_IFTYPE_P2P_CLIENT:
11859 return -EOPNOTSUPP;
11862 if (!info->attrs[NL80211_ATTR_MAC] ||
11863 !info->attrs[NL80211_ATTR_OPER_CLASS])
11866 err = nl80211_parse_chandef(rdev, info, &chandef);
11871 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
11872 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
11873 * specification is not defined for them.
11875 if (chandef.chan->band == NL80211_BAND_2GHZ &&
11876 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
11877 chandef.width != NL80211_CHAN_WIDTH_20)
11880 /* we will be active on the TDLS link */
11881 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11885 /* don't allow switching to DFS channels */
11886 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11889 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11890 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11893 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11899 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11900 struct genl_info *info)
11902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11903 struct net_device *dev = info->user_ptr[1];
11904 struct wireless_dev *wdev = dev->ieee80211_ptr;
11907 if (!rdev->ops->tdls_channel_switch ||
11908 !rdev->ops->tdls_cancel_channel_switch ||
11909 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11910 return -EOPNOTSUPP;
11912 switch (dev->ieee80211_ptr->iftype) {
11913 case NL80211_IFTYPE_STATION:
11914 case NL80211_IFTYPE_P2P_CLIENT:
11917 return -EOPNOTSUPP;
11920 if (!info->attrs[NL80211_ATTR_MAC])
11923 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11926 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11932 static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
11933 struct genl_info *info)
11935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11936 struct net_device *dev = info->user_ptr[1];
11937 struct wireless_dev *wdev = dev->ieee80211_ptr;
11938 const struct nlattr *nla;
11941 if (!rdev->ops->set_multicast_to_unicast)
11942 return -EOPNOTSUPP;
11944 if (wdev->iftype != NL80211_IFTYPE_AP &&
11945 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11946 return -EOPNOTSUPP;
11948 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
11949 enabled = nla_get_flag(nla);
11951 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
11954 #define NL80211_FLAG_NEED_WIPHY 0x01
11955 #define NL80211_FLAG_NEED_NETDEV 0x02
11956 #define NL80211_FLAG_NEED_RTNL 0x04
11957 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11958 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11959 NL80211_FLAG_CHECK_NETDEV_UP)
11960 #define NL80211_FLAG_NEED_WDEV 0x10
11961 /* If a netdev is associated, it must be UP, P2P must be started */
11962 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11963 NL80211_FLAG_CHECK_NETDEV_UP)
11964 #define NL80211_FLAG_CLEAR_SKB 0x20
11966 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
11967 struct genl_info *info)
11969 struct cfg80211_registered_device *rdev;
11970 struct wireless_dev *wdev;
11971 struct net_device *dev;
11972 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11977 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
11978 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
11979 if (IS_ERR(rdev)) {
11982 return PTR_ERR(rdev);
11984 info->user_ptr[0] = rdev;
11985 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11986 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11989 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11991 if (IS_ERR(wdev)) {
11994 return PTR_ERR(wdev);
11997 dev = wdev->netdev;
11998 rdev = wiphy_to_rdev(wdev->wiphy);
12000 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12007 info->user_ptr[1] = dev;
12009 info->user_ptr[1] = wdev;
12012 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12013 !wdev_running(wdev)) {
12022 info->user_ptr[0] = rdev;
12028 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
12029 struct genl_info *info)
12031 if (info->user_ptr[1]) {
12032 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12033 struct wireless_dev *wdev = info->user_ptr[1];
12036 dev_put(wdev->netdev);
12038 dev_put(info->user_ptr[1]);
12042 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12045 /* If needed, clear the netlink message payload from the SKB
12046 * as it might contain key data that shouldn't stick around on
12047 * the heap after the SKB is freed. The netlink message header
12048 * is still needed for further processing, so leave it intact.
12050 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12051 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12053 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12057 static const struct genl_ops nl80211_ops[] = {
12059 .cmd = NL80211_CMD_GET_WIPHY,
12060 .doit = nl80211_get_wiphy,
12061 .dumpit = nl80211_dump_wiphy,
12062 .done = nl80211_dump_wiphy_done,
12063 .policy = nl80211_policy,
12064 /* can be retrieved by unprivileged users */
12065 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12066 NL80211_FLAG_NEED_RTNL,
12069 .cmd = NL80211_CMD_SET_WIPHY,
12070 .doit = nl80211_set_wiphy,
12071 .policy = nl80211_policy,
12072 .flags = GENL_UNS_ADMIN_PERM,
12073 .internal_flags = NL80211_FLAG_NEED_RTNL,
12076 .cmd = NL80211_CMD_GET_INTERFACE,
12077 .doit = nl80211_get_interface,
12078 .dumpit = nl80211_dump_interface,
12079 .policy = nl80211_policy,
12080 /* can be retrieved by unprivileged users */
12081 .internal_flags = NL80211_FLAG_NEED_WDEV |
12082 NL80211_FLAG_NEED_RTNL,
12085 .cmd = NL80211_CMD_SET_INTERFACE,
12086 .doit = nl80211_set_interface,
12087 .policy = nl80211_policy,
12088 .flags = GENL_UNS_ADMIN_PERM,
12089 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12090 NL80211_FLAG_NEED_RTNL,
12093 .cmd = NL80211_CMD_NEW_INTERFACE,
12094 .doit = nl80211_new_interface,
12095 .policy = nl80211_policy,
12096 .flags = GENL_UNS_ADMIN_PERM,
12097 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12098 NL80211_FLAG_NEED_RTNL,
12101 .cmd = NL80211_CMD_DEL_INTERFACE,
12102 .doit = nl80211_del_interface,
12103 .policy = nl80211_policy,
12104 .flags = GENL_UNS_ADMIN_PERM,
12105 .internal_flags = NL80211_FLAG_NEED_WDEV |
12106 NL80211_FLAG_NEED_RTNL,
12109 .cmd = NL80211_CMD_GET_KEY,
12110 .doit = nl80211_get_key,
12111 .policy = nl80211_policy,
12112 .flags = GENL_UNS_ADMIN_PERM,
12113 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12114 NL80211_FLAG_NEED_RTNL,
12117 .cmd = NL80211_CMD_SET_KEY,
12118 .doit = nl80211_set_key,
12119 .policy = nl80211_policy,
12120 .flags = GENL_UNS_ADMIN_PERM,
12121 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12122 NL80211_FLAG_NEED_RTNL |
12123 NL80211_FLAG_CLEAR_SKB,
12126 .cmd = NL80211_CMD_NEW_KEY,
12127 .doit = nl80211_new_key,
12128 .policy = nl80211_policy,
12129 .flags = GENL_UNS_ADMIN_PERM,
12130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12131 NL80211_FLAG_NEED_RTNL |
12132 NL80211_FLAG_CLEAR_SKB,
12135 .cmd = NL80211_CMD_DEL_KEY,
12136 .doit = nl80211_del_key,
12137 .policy = nl80211_policy,
12138 .flags = GENL_UNS_ADMIN_PERM,
12139 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12140 NL80211_FLAG_NEED_RTNL,
12143 .cmd = NL80211_CMD_SET_BEACON,
12144 .policy = nl80211_policy,
12145 .flags = GENL_UNS_ADMIN_PERM,
12146 .doit = nl80211_set_beacon,
12147 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12148 NL80211_FLAG_NEED_RTNL,
12151 .cmd = NL80211_CMD_START_AP,
12152 .policy = nl80211_policy,
12153 .flags = GENL_UNS_ADMIN_PERM,
12154 .doit = nl80211_start_ap,
12155 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12156 NL80211_FLAG_NEED_RTNL,
12159 .cmd = NL80211_CMD_STOP_AP,
12160 .policy = nl80211_policy,
12161 .flags = GENL_UNS_ADMIN_PERM,
12162 .doit = nl80211_stop_ap,
12163 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12164 NL80211_FLAG_NEED_RTNL,
12167 .cmd = NL80211_CMD_GET_STATION,
12168 .doit = nl80211_get_station,
12169 .dumpit = nl80211_dump_station,
12170 .policy = nl80211_policy,
12171 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12172 NL80211_FLAG_NEED_RTNL,
12175 .cmd = NL80211_CMD_SET_STATION,
12176 .doit = nl80211_set_station,
12177 .policy = nl80211_policy,
12178 .flags = GENL_UNS_ADMIN_PERM,
12179 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12180 NL80211_FLAG_NEED_RTNL,
12183 .cmd = NL80211_CMD_NEW_STATION,
12184 .doit = nl80211_new_station,
12185 .policy = nl80211_policy,
12186 .flags = GENL_UNS_ADMIN_PERM,
12187 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12188 NL80211_FLAG_NEED_RTNL,
12191 .cmd = NL80211_CMD_DEL_STATION,
12192 .doit = nl80211_del_station,
12193 .policy = nl80211_policy,
12194 .flags = GENL_UNS_ADMIN_PERM,
12195 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12196 NL80211_FLAG_NEED_RTNL,
12199 .cmd = NL80211_CMD_GET_MPATH,
12200 .doit = nl80211_get_mpath,
12201 .dumpit = nl80211_dump_mpath,
12202 .policy = nl80211_policy,
12203 .flags = GENL_UNS_ADMIN_PERM,
12204 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12205 NL80211_FLAG_NEED_RTNL,
12208 .cmd = NL80211_CMD_GET_MPP,
12209 .doit = nl80211_get_mpp,
12210 .dumpit = nl80211_dump_mpp,
12211 .policy = nl80211_policy,
12212 .flags = GENL_UNS_ADMIN_PERM,
12213 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12214 NL80211_FLAG_NEED_RTNL,
12217 .cmd = NL80211_CMD_SET_MPATH,
12218 .doit = nl80211_set_mpath,
12219 .policy = nl80211_policy,
12220 .flags = GENL_UNS_ADMIN_PERM,
12221 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12222 NL80211_FLAG_NEED_RTNL,
12225 .cmd = NL80211_CMD_NEW_MPATH,
12226 .doit = nl80211_new_mpath,
12227 .policy = nl80211_policy,
12228 .flags = GENL_UNS_ADMIN_PERM,
12229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12230 NL80211_FLAG_NEED_RTNL,
12233 .cmd = NL80211_CMD_DEL_MPATH,
12234 .doit = nl80211_del_mpath,
12235 .policy = nl80211_policy,
12236 .flags = GENL_UNS_ADMIN_PERM,
12237 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12238 NL80211_FLAG_NEED_RTNL,
12241 .cmd = NL80211_CMD_SET_BSS,
12242 .doit = nl80211_set_bss,
12243 .policy = nl80211_policy,
12244 .flags = GENL_UNS_ADMIN_PERM,
12245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12246 NL80211_FLAG_NEED_RTNL,
12249 .cmd = NL80211_CMD_GET_REG,
12250 .doit = nl80211_get_reg_do,
12251 .dumpit = nl80211_get_reg_dump,
12252 .policy = nl80211_policy,
12253 .internal_flags = NL80211_FLAG_NEED_RTNL,
12254 /* can be retrieved by unprivileged users */
12256 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
12258 .cmd = NL80211_CMD_SET_REG,
12259 .doit = nl80211_set_reg,
12260 .policy = nl80211_policy,
12261 .flags = GENL_ADMIN_PERM,
12262 .internal_flags = NL80211_FLAG_NEED_RTNL,
12266 .cmd = NL80211_CMD_REQ_SET_REG,
12267 .doit = nl80211_req_set_reg,
12268 .policy = nl80211_policy,
12269 .flags = GENL_ADMIN_PERM,
12272 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12273 .doit = nl80211_get_mesh_config,
12274 .policy = nl80211_policy,
12275 /* can be retrieved by unprivileged users */
12276 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12277 NL80211_FLAG_NEED_RTNL,
12280 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12281 .doit = nl80211_update_mesh_config,
12282 .policy = nl80211_policy,
12283 .flags = GENL_UNS_ADMIN_PERM,
12284 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12285 NL80211_FLAG_NEED_RTNL,
12288 .cmd = NL80211_CMD_TRIGGER_SCAN,
12289 .doit = nl80211_trigger_scan,
12290 .policy = nl80211_policy,
12291 .flags = GENL_UNS_ADMIN_PERM,
12292 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12293 NL80211_FLAG_NEED_RTNL,
12296 .cmd = NL80211_CMD_ABORT_SCAN,
12297 .doit = nl80211_abort_scan,
12298 .policy = nl80211_policy,
12299 .flags = GENL_UNS_ADMIN_PERM,
12300 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12301 NL80211_FLAG_NEED_RTNL,
12304 .cmd = NL80211_CMD_GET_SCAN,
12305 .policy = nl80211_policy,
12306 .dumpit = nl80211_dump_scan,
12309 .cmd = NL80211_CMD_START_SCHED_SCAN,
12310 .doit = nl80211_start_sched_scan,
12311 .policy = nl80211_policy,
12312 .flags = GENL_UNS_ADMIN_PERM,
12313 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12314 NL80211_FLAG_NEED_RTNL,
12317 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12318 .doit = nl80211_stop_sched_scan,
12319 .policy = nl80211_policy,
12320 .flags = GENL_UNS_ADMIN_PERM,
12321 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12322 NL80211_FLAG_NEED_RTNL,
12325 .cmd = NL80211_CMD_AUTHENTICATE,
12326 .doit = nl80211_authenticate,
12327 .policy = nl80211_policy,
12328 .flags = GENL_UNS_ADMIN_PERM,
12329 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12330 NL80211_FLAG_NEED_RTNL |
12331 NL80211_FLAG_CLEAR_SKB,
12334 .cmd = NL80211_CMD_ASSOCIATE,
12335 .doit = nl80211_associate,
12336 .policy = nl80211_policy,
12337 .flags = GENL_UNS_ADMIN_PERM,
12338 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12339 NL80211_FLAG_NEED_RTNL,
12342 .cmd = NL80211_CMD_DEAUTHENTICATE,
12343 .doit = nl80211_deauthenticate,
12344 .policy = nl80211_policy,
12345 .flags = GENL_UNS_ADMIN_PERM,
12346 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12347 NL80211_FLAG_NEED_RTNL,
12350 .cmd = NL80211_CMD_DISASSOCIATE,
12351 .doit = nl80211_disassociate,
12352 .policy = nl80211_policy,
12353 .flags = GENL_UNS_ADMIN_PERM,
12354 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12355 NL80211_FLAG_NEED_RTNL,
12358 .cmd = NL80211_CMD_JOIN_IBSS,
12359 .doit = nl80211_join_ibss,
12360 .policy = nl80211_policy,
12361 .flags = GENL_UNS_ADMIN_PERM,
12362 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12363 NL80211_FLAG_NEED_RTNL,
12366 .cmd = NL80211_CMD_LEAVE_IBSS,
12367 .doit = nl80211_leave_ibss,
12368 .policy = nl80211_policy,
12369 .flags = GENL_UNS_ADMIN_PERM,
12370 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12371 NL80211_FLAG_NEED_RTNL,
12373 #ifdef CONFIG_NL80211_TESTMODE
12375 .cmd = NL80211_CMD_TESTMODE,
12376 .doit = nl80211_testmode_do,
12377 .dumpit = nl80211_testmode_dump,
12378 .policy = nl80211_policy,
12379 .flags = GENL_UNS_ADMIN_PERM,
12380 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12381 NL80211_FLAG_NEED_RTNL,
12385 .cmd = NL80211_CMD_CONNECT,
12386 .doit = nl80211_connect,
12387 .policy = nl80211_policy,
12388 .flags = GENL_UNS_ADMIN_PERM,
12389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12390 NL80211_FLAG_NEED_RTNL,
12393 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12394 .doit = nl80211_update_connect_params,
12395 .policy = nl80211_policy,
12396 .flags = GENL_ADMIN_PERM,
12397 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12398 NL80211_FLAG_NEED_RTNL,
12401 .cmd = NL80211_CMD_DISCONNECT,
12402 .doit = nl80211_disconnect,
12403 .policy = nl80211_policy,
12404 .flags = GENL_UNS_ADMIN_PERM,
12405 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12406 NL80211_FLAG_NEED_RTNL,
12409 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12410 .doit = nl80211_wiphy_netns,
12411 .policy = nl80211_policy,
12412 .flags = GENL_UNS_ADMIN_PERM,
12413 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12414 NL80211_FLAG_NEED_RTNL,
12417 .cmd = NL80211_CMD_GET_SURVEY,
12418 .policy = nl80211_policy,
12419 .dumpit = nl80211_dump_survey,
12422 .cmd = NL80211_CMD_SET_PMKSA,
12423 .doit = nl80211_setdel_pmksa,
12424 .policy = nl80211_policy,
12425 .flags = GENL_UNS_ADMIN_PERM,
12426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12427 NL80211_FLAG_NEED_RTNL,
12430 .cmd = NL80211_CMD_DEL_PMKSA,
12431 .doit = nl80211_setdel_pmksa,
12432 .policy = nl80211_policy,
12433 .flags = GENL_UNS_ADMIN_PERM,
12434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12435 NL80211_FLAG_NEED_RTNL,
12438 .cmd = NL80211_CMD_FLUSH_PMKSA,
12439 .doit = nl80211_flush_pmksa,
12440 .policy = nl80211_policy,
12441 .flags = GENL_UNS_ADMIN_PERM,
12442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12443 NL80211_FLAG_NEED_RTNL,
12446 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12447 .doit = nl80211_remain_on_channel,
12448 .policy = nl80211_policy,
12449 .flags = GENL_UNS_ADMIN_PERM,
12450 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12451 NL80211_FLAG_NEED_RTNL,
12454 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12455 .doit = nl80211_cancel_remain_on_channel,
12456 .policy = nl80211_policy,
12457 .flags = GENL_UNS_ADMIN_PERM,
12458 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12459 NL80211_FLAG_NEED_RTNL,
12462 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12463 .doit = nl80211_set_tx_bitrate_mask,
12464 .policy = nl80211_policy,
12465 .flags = GENL_UNS_ADMIN_PERM,
12466 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12467 NL80211_FLAG_NEED_RTNL,
12470 .cmd = NL80211_CMD_REGISTER_FRAME,
12471 .doit = nl80211_register_mgmt,
12472 .policy = nl80211_policy,
12473 .flags = GENL_UNS_ADMIN_PERM,
12474 .internal_flags = NL80211_FLAG_NEED_WDEV |
12475 NL80211_FLAG_NEED_RTNL,
12478 .cmd = NL80211_CMD_FRAME,
12479 .doit = nl80211_tx_mgmt,
12480 .policy = nl80211_policy,
12481 .flags = GENL_UNS_ADMIN_PERM,
12482 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12483 NL80211_FLAG_NEED_RTNL,
12486 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12487 .doit = nl80211_tx_mgmt_cancel_wait,
12488 .policy = nl80211_policy,
12489 .flags = GENL_UNS_ADMIN_PERM,
12490 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12491 NL80211_FLAG_NEED_RTNL,
12494 .cmd = NL80211_CMD_SET_POWER_SAVE,
12495 .doit = nl80211_set_power_save,
12496 .policy = nl80211_policy,
12497 .flags = GENL_UNS_ADMIN_PERM,
12498 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12499 NL80211_FLAG_NEED_RTNL,
12502 .cmd = NL80211_CMD_GET_POWER_SAVE,
12503 .doit = nl80211_get_power_save,
12504 .policy = nl80211_policy,
12505 /* can be retrieved by unprivileged users */
12506 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12507 NL80211_FLAG_NEED_RTNL,
12510 .cmd = NL80211_CMD_SET_CQM,
12511 .doit = nl80211_set_cqm,
12512 .policy = nl80211_policy,
12513 .flags = GENL_UNS_ADMIN_PERM,
12514 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12515 NL80211_FLAG_NEED_RTNL,
12518 .cmd = NL80211_CMD_SET_CHANNEL,
12519 .doit = nl80211_set_channel,
12520 .policy = nl80211_policy,
12521 .flags = GENL_UNS_ADMIN_PERM,
12522 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12523 NL80211_FLAG_NEED_RTNL,
12526 .cmd = NL80211_CMD_SET_WDS_PEER,
12527 .doit = nl80211_set_wds_peer,
12528 .policy = nl80211_policy,
12529 .flags = GENL_UNS_ADMIN_PERM,
12530 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12531 NL80211_FLAG_NEED_RTNL,
12534 .cmd = NL80211_CMD_JOIN_MESH,
12535 .doit = nl80211_join_mesh,
12536 .policy = nl80211_policy,
12537 .flags = GENL_UNS_ADMIN_PERM,
12538 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12539 NL80211_FLAG_NEED_RTNL,
12542 .cmd = NL80211_CMD_LEAVE_MESH,
12543 .doit = nl80211_leave_mesh,
12544 .policy = nl80211_policy,
12545 .flags = GENL_UNS_ADMIN_PERM,
12546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12547 NL80211_FLAG_NEED_RTNL,
12550 .cmd = NL80211_CMD_JOIN_OCB,
12551 .doit = nl80211_join_ocb,
12552 .policy = nl80211_policy,
12553 .flags = GENL_UNS_ADMIN_PERM,
12554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12555 NL80211_FLAG_NEED_RTNL,
12558 .cmd = NL80211_CMD_LEAVE_OCB,
12559 .doit = nl80211_leave_ocb,
12560 .policy = nl80211_policy,
12561 .flags = GENL_UNS_ADMIN_PERM,
12562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12563 NL80211_FLAG_NEED_RTNL,
12567 .cmd = NL80211_CMD_GET_WOWLAN,
12568 .doit = nl80211_get_wowlan,
12569 .policy = nl80211_policy,
12570 /* can be retrieved by unprivileged users */
12571 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12572 NL80211_FLAG_NEED_RTNL,
12575 .cmd = NL80211_CMD_SET_WOWLAN,
12576 .doit = nl80211_set_wowlan,
12577 .policy = nl80211_policy,
12578 .flags = GENL_UNS_ADMIN_PERM,
12579 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12580 NL80211_FLAG_NEED_RTNL,
12584 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
12585 .doit = nl80211_set_rekey_data,
12586 .policy = nl80211_policy,
12587 .flags = GENL_UNS_ADMIN_PERM,
12588 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12589 NL80211_FLAG_NEED_RTNL |
12590 NL80211_FLAG_CLEAR_SKB,
12593 .cmd = NL80211_CMD_TDLS_MGMT,
12594 .doit = nl80211_tdls_mgmt,
12595 .policy = nl80211_policy,
12596 .flags = GENL_UNS_ADMIN_PERM,
12597 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12598 NL80211_FLAG_NEED_RTNL,
12601 .cmd = NL80211_CMD_TDLS_OPER,
12602 .doit = nl80211_tdls_oper,
12603 .policy = nl80211_policy,
12604 .flags = GENL_UNS_ADMIN_PERM,
12605 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12606 NL80211_FLAG_NEED_RTNL,
12609 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
12610 .doit = nl80211_register_unexpected_frame,
12611 .policy = nl80211_policy,
12612 .flags = GENL_UNS_ADMIN_PERM,
12613 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12614 NL80211_FLAG_NEED_RTNL,
12617 .cmd = NL80211_CMD_PROBE_CLIENT,
12618 .doit = nl80211_probe_client,
12619 .policy = nl80211_policy,
12620 .flags = GENL_UNS_ADMIN_PERM,
12621 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12622 NL80211_FLAG_NEED_RTNL,
12625 .cmd = NL80211_CMD_REGISTER_BEACONS,
12626 .doit = nl80211_register_beacons,
12627 .policy = nl80211_policy,
12628 .flags = GENL_UNS_ADMIN_PERM,
12629 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12630 NL80211_FLAG_NEED_RTNL,
12633 .cmd = NL80211_CMD_SET_NOACK_MAP,
12634 .doit = nl80211_set_noack_map,
12635 .policy = nl80211_policy,
12636 .flags = GENL_UNS_ADMIN_PERM,
12637 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12638 NL80211_FLAG_NEED_RTNL,
12641 .cmd = NL80211_CMD_START_P2P_DEVICE,
12642 .doit = nl80211_start_p2p_device,
12643 .policy = nl80211_policy,
12644 .flags = GENL_UNS_ADMIN_PERM,
12645 .internal_flags = NL80211_FLAG_NEED_WDEV |
12646 NL80211_FLAG_NEED_RTNL,
12649 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
12650 .doit = nl80211_stop_p2p_device,
12651 .policy = nl80211_policy,
12652 .flags = GENL_UNS_ADMIN_PERM,
12653 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12654 NL80211_FLAG_NEED_RTNL,
12657 .cmd = NL80211_CMD_START_NAN,
12658 .doit = nl80211_start_nan,
12659 .policy = nl80211_policy,
12660 .flags = GENL_ADMIN_PERM,
12661 .internal_flags = NL80211_FLAG_NEED_WDEV |
12662 NL80211_FLAG_NEED_RTNL,
12665 .cmd = NL80211_CMD_STOP_NAN,
12666 .doit = nl80211_stop_nan,
12667 .policy = nl80211_policy,
12668 .flags = GENL_ADMIN_PERM,
12669 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12670 NL80211_FLAG_NEED_RTNL,
12673 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
12674 .doit = nl80211_nan_add_func,
12675 .policy = nl80211_policy,
12676 .flags = GENL_ADMIN_PERM,
12677 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12678 NL80211_FLAG_NEED_RTNL,
12681 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
12682 .doit = nl80211_nan_del_func,
12683 .policy = nl80211_policy,
12684 .flags = GENL_ADMIN_PERM,
12685 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12686 NL80211_FLAG_NEED_RTNL,
12689 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
12690 .doit = nl80211_nan_change_config,
12691 .policy = nl80211_policy,
12692 .flags = GENL_ADMIN_PERM,
12693 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12694 NL80211_FLAG_NEED_RTNL,
12697 .cmd = NL80211_CMD_SET_MCAST_RATE,
12698 .doit = nl80211_set_mcast_rate,
12699 .policy = nl80211_policy,
12700 .flags = GENL_UNS_ADMIN_PERM,
12701 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12702 NL80211_FLAG_NEED_RTNL,
12705 .cmd = NL80211_CMD_SET_MAC_ACL,
12706 .doit = nl80211_set_mac_acl,
12707 .policy = nl80211_policy,
12708 .flags = GENL_UNS_ADMIN_PERM,
12709 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12710 NL80211_FLAG_NEED_RTNL,
12713 .cmd = NL80211_CMD_RADAR_DETECT,
12714 .doit = nl80211_start_radar_detection,
12715 .policy = nl80211_policy,
12716 .flags = GENL_UNS_ADMIN_PERM,
12717 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12718 NL80211_FLAG_NEED_RTNL,
12721 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
12722 .doit = nl80211_get_protocol_features,
12723 .policy = nl80211_policy,
12726 .cmd = NL80211_CMD_UPDATE_FT_IES,
12727 .doit = nl80211_update_ft_ies,
12728 .policy = nl80211_policy,
12729 .flags = GENL_UNS_ADMIN_PERM,
12730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12731 NL80211_FLAG_NEED_RTNL,
12734 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
12735 .doit = nl80211_crit_protocol_start,
12736 .policy = nl80211_policy,
12737 .flags = GENL_UNS_ADMIN_PERM,
12738 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12739 NL80211_FLAG_NEED_RTNL,
12742 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
12743 .doit = nl80211_crit_protocol_stop,
12744 .policy = nl80211_policy,
12745 .flags = GENL_UNS_ADMIN_PERM,
12746 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12747 NL80211_FLAG_NEED_RTNL,
12750 .cmd = NL80211_CMD_GET_COALESCE,
12751 .doit = nl80211_get_coalesce,
12752 .policy = nl80211_policy,
12753 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12754 NL80211_FLAG_NEED_RTNL,
12757 .cmd = NL80211_CMD_SET_COALESCE,
12758 .doit = nl80211_set_coalesce,
12759 .policy = nl80211_policy,
12760 .flags = GENL_UNS_ADMIN_PERM,
12761 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12762 NL80211_FLAG_NEED_RTNL,
12765 .cmd = NL80211_CMD_CHANNEL_SWITCH,
12766 .doit = nl80211_channel_switch,
12767 .policy = nl80211_policy,
12768 .flags = GENL_UNS_ADMIN_PERM,
12769 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12770 NL80211_FLAG_NEED_RTNL,
12773 .cmd = NL80211_CMD_VENDOR,
12774 .doit = nl80211_vendor_cmd,
12775 .dumpit = nl80211_vendor_cmd_dump,
12776 .policy = nl80211_policy,
12777 .flags = GENL_UNS_ADMIN_PERM,
12778 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12779 NL80211_FLAG_NEED_RTNL,
12782 .cmd = NL80211_CMD_SET_QOS_MAP,
12783 .doit = nl80211_set_qos_map,
12784 .policy = nl80211_policy,
12785 .flags = GENL_UNS_ADMIN_PERM,
12786 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12787 NL80211_FLAG_NEED_RTNL,
12790 .cmd = NL80211_CMD_ADD_TX_TS,
12791 .doit = nl80211_add_tx_ts,
12792 .policy = nl80211_policy,
12793 .flags = GENL_UNS_ADMIN_PERM,
12794 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12795 NL80211_FLAG_NEED_RTNL,
12798 .cmd = NL80211_CMD_DEL_TX_TS,
12799 .doit = nl80211_del_tx_ts,
12800 .policy = nl80211_policy,
12801 .flags = GENL_UNS_ADMIN_PERM,
12802 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12803 NL80211_FLAG_NEED_RTNL,
12806 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
12807 .doit = nl80211_tdls_channel_switch,
12808 .policy = nl80211_policy,
12809 .flags = GENL_UNS_ADMIN_PERM,
12810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12811 NL80211_FLAG_NEED_RTNL,
12814 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
12815 .doit = nl80211_tdls_cancel_channel_switch,
12816 .policy = nl80211_policy,
12817 .flags = GENL_UNS_ADMIN_PERM,
12818 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12819 NL80211_FLAG_NEED_RTNL,
12822 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
12823 .doit = nl80211_set_multicast_to_unicast,
12824 .policy = nl80211_policy,
12825 .flags = GENL_UNS_ADMIN_PERM,
12826 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12827 NL80211_FLAG_NEED_RTNL,
12831 static struct genl_family nl80211_fam __ro_after_init = {
12832 .name = NL80211_GENL_NAME, /* have users key off the name instead */
12833 .hdrsize = 0, /* no private header */
12834 .version = 1, /* no particular meaning now */
12835 .maxattr = NL80211_ATTR_MAX,
12837 .pre_doit = nl80211_pre_doit,
12838 .post_doit = nl80211_post_doit,
12839 .module = THIS_MODULE,
12840 .ops = nl80211_ops,
12841 .n_ops = ARRAY_SIZE(nl80211_ops),
12842 .mcgrps = nl80211_mcgrps,
12843 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
12846 /* notification functions */
12848 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
12849 enum nl80211_commands cmd)
12851 struct sk_buff *msg;
12852 struct nl80211_dump_wiphy_state state = {};
12854 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
12855 cmd != NL80211_CMD_DEL_WIPHY);
12857 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12861 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
12866 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12867 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12870 void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
12871 struct wireless_dev *wdev,
12872 enum nl80211_commands cmd)
12874 struct sk_buff *msg;
12876 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
12877 cmd != NL80211_CMD_DEL_INTERFACE);
12879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12883 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
12884 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
12889 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12890 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12893 static int nl80211_add_scan_req(struct sk_buff *msg,
12894 struct cfg80211_registered_device *rdev)
12896 struct cfg80211_scan_request *req = rdev->scan_req;
12897 struct nlattr *nest;
12903 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
12905 goto nla_put_failure;
12906 for (i = 0; i < req->n_ssids; i++) {
12907 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
12908 goto nla_put_failure;
12910 nla_nest_end(msg, nest);
12912 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
12914 goto nla_put_failure;
12915 for (i = 0; i < req->n_channels; i++) {
12916 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
12917 goto nla_put_failure;
12919 nla_nest_end(msg, nest);
12922 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
12923 goto nla_put_failure;
12926 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
12927 goto nla_put_failure;
12929 if (req->info.scan_start_tsf &&
12930 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
12931 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
12932 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
12933 req->info.tsf_bssid)))
12934 goto nla_put_failure;
12941 static int nl80211_prep_scan_msg(struct sk_buff *msg,
12942 struct cfg80211_registered_device *rdev,
12943 struct wireless_dev *wdev,
12944 u32 portid, u32 seq, int flags,
12949 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
12953 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12954 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12955 wdev->netdev->ifindex)) ||
12956 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12958 goto nla_put_failure;
12960 /* ignore errors and send incomplete event anyway */
12961 nl80211_add_scan_req(msg, rdev);
12963 genlmsg_end(msg, hdr);
12967 genlmsg_cancel(msg, hdr);
12972 nl80211_prep_sched_scan_msg(struct sk_buff *msg,
12973 struct cfg80211_registered_device *rdev,
12974 struct net_device *netdev,
12975 u32 portid, u32 seq, int flags, u32 cmd)
12979 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
12983 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12984 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12985 goto nla_put_failure;
12987 genlmsg_end(msg, hdr);
12991 genlmsg_cancel(msg, hdr);
12995 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
12996 struct wireless_dev *wdev)
12998 struct sk_buff *msg;
13000 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13004 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
13005 NL80211_CMD_TRIGGER_SCAN) < 0) {
13010 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13011 NL80211_MCGRP_SCAN, GFP_KERNEL);
13014 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13015 struct wireless_dev *wdev, bool aborted)
13017 struct sk_buff *msg;
13019 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13023 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
13024 aborted ? NL80211_CMD_SCAN_ABORTED :
13025 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
13033 /* send message created by nl80211_build_scan_msg() */
13034 void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13035 struct sk_buff *msg)
13040 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13041 NL80211_MCGRP_SCAN, GFP_KERNEL);
13044 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
13045 struct net_device *netdev, u32 cmd)
13047 struct sk_buff *msg;
13049 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13053 if (nl80211_prep_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
13058 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13059 NL80211_MCGRP_SCAN, GFP_KERNEL);
13062 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13063 struct regulatory_request *request)
13065 /* Userspace can always count this one always being set */
13066 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13067 goto nla_put_failure;
13069 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13070 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13071 NL80211_REGDOM_TYPE_WORLD))
13072 goto nla_put_failure;
13073 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13074 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13075 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13076 goto nla_put_failure;
13077 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13078 request->intersect) {
13079 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13080 NL80211_REGDOM_TYPE_INTERSECTION))
13081 goto nla_put_failure;
13083 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13084 NL80211_REGDOM_TYPE_COUNTRY) ||
13085 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13087 goto nla_put_failure;
13090 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13091 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13094 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13095 goto nla_put_failure;
13098 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13099 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13100 goto nla_put_failure;
13110 * This can happen on global regulatory changes or device specific settings
13111 * based on custom regulatory domains.
13113 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13114 struct regulatory_request *request)
13116 struct sk_buff *msg;
13119 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13123 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13129 if (nl80211_reg_change_event_fill(msg, request) == false)
13130 goto nla_put_failure;
13132 genlmsg_end(msg, hdr);
13135 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
13136 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
13142 genlmsg_cancel(msg, hdr);
13146 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13147 struct net_device *netdev,
13148 const u8 *buf, size_t len,
13149 enum nl80211_commands cmd, gfp_t gfp,
13152 struct sk_buff *msg;
13155 msg = nlmsg_new(100 + len, gfp);
13159 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13165 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13166 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13167 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13168 goto nla_put_failure;
13170 if (uapsd_queues >= 0) {
13171 struct nlattr *nla_wmm =
13172 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13174 goto nla_put_failure;
13176 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13178 goto nla_put_failure;
13180 nla_nest_end(msg, nla_wmm);
13183 genlmsg_end(msg, hdr);
13185 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13186 NL80211_MCGRP_MLME, gfp);
13190 genlmsg_cancel(msg, hdr);
13194 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
13195 struct net_device *netdev, const u8 *buf,
13196 size_t len, gfp_t gfp)
13198 nl80211_send_mlme_event(rdev, netdev, buf, len,
13199 NL80211_CMD_AUTHENTICATE, gfp, -1);
13202 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13203 struct net_device *netdev, const u8 *buf,
13204 size_t len, gfp_t gfp, int uapsd_queues)
13206 nl80211_send_mlme_event(rdev, netdev, buf, len,
13207 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
13210 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
13211 struct net_device *netdev, const u8 *buf,
13212 size_t len, gfp_t gfp)
13214 nl80211_send_mlme_event(rdev, netdev, buf, len,
13215 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
13218 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13219 struct net_device *netdev, const u8 *buf,
13220 size_t len, gfp_t gfp)
13222 nl80211_send_mlme_event(rdev, netdev, buf, len,
13223 NL80211_CMD_DISASSOCIATE, gfp, -1);
13226 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13229 struct wireless_dev *wdev = dev->ieee80211_ptr;
13230 struct wiphy *wiphy = wdev->wiphy;
13231 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13232 const struct ieee80211_mgmt *mgmt = (void *)buf;
13235 if (WARN_ON(len < 2))
13238 if (ieee80211_is_deauth(mgmt->frame_control))
13239 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13241 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
13243 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
13244 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
13246 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
13248 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13249 struct net_device *netdev, int cmd,
13250 const u8 *addr, gfp_t gfp)
13252 struct sk_buff *msg;
13255 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13259 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13265 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13266 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13267 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13268 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13269 goto nla_put_failure;
13271 genlmsg_end(msg, hdr);
13273 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13274 NL80211_MCGRP_MLME, gfp);
13278 genlmsg_cancel(msg, hdr);
13282 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
13283 struct net_device *netdev, const u8 *addr,
13286 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
13290 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
13291 struct net_device *netdev, const u8 *addr,
13294 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13298 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
13299 struct net_device *netdev, const u8 *bssid,
13300 const u8 *req_ie, size_t req_ie_len,
13301 const u8 *resp_ie, size_t resp_ie_len,
13303 enum nl80211_timeout_reason timeout_reason,
13306 struct sk_buff *msg;
13309 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
13313 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13319 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13320 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13321 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
13322 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
13323 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13326 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13327 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON, timeout_reason))) ||
13329 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13331 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13332 goto nla_put_failure;
13334 genlmsg_end(msg, hdr);
13336 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13337 NL80211_MCGRP_MLME, gfp);
13341 genlmsg_cancel(msg, hdr);
13345 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
13346 struct net_device *netdev, const u8 *bssid,
13347 const u8 *req_ie, size_t req_ie_len,
13348 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
13350 struct sk_buff *msg;
13353 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
13357 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13363 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13364 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13365 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
13367 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13369 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13370 goto nla_put_failure;
13372 genlmsg_end(msg, hdr);
13374 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13375 NL80211_MCGRP_MLME, gfp);
13379 genlmsg_cancel(msg, hdr);
13383 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13384 struct net_device *netdev, u16 reason,
13385 const u8 *ie, size_t ie_len, bool from_ap)
13387 struct sk_buff *msg;
13390 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
13394 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13401 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13402 (from_ap && reason &&
13403 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13405 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13406 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13407 goto nla_put_failure;
13409 genlmsg_end(msg, hdr);
13411 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13412 NL80211_MCGRP_MLME, GFP_KERNEL);
13416 genlmsg_cancel(msg, hdr);
13420 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13421 struct net_device *netdev, const u8 *bssid,
13424 struct sk_buff *msg;
13427 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13431 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13437 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13438 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13439 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13440 goto nla_put_failure;
13442 genlmsg_end(msg, hdr);
13444 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13445 NL80211_MCGRP_MLME, gfp);
13449 genlmsg_cancel(msg, hdr);
13453 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13454 const u8* ie, u8 ie_len, gfp_t gfp)
13456 struct wireless_dev *wdev = dev->ieee80211_ptr;
13457 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13458 struct sk_buff *msg;
13461 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13464 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13466 msg = nlmsg_new(100 + ie_len, gfp);
13470 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13476 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13477 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13478 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
13480 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13481 goto nla_put_failure;
13483 genlmsg_end(msg, hdr);
13485 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13486 NL80211_MCGRP_MLME, gfp);
13490 genlmsg_cancel(msg, hdr);
13493 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
13495 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13496 struct net_device *netdev, const u8 *addr,
13497 enum nl80211_key_type key_type, int key_id,
13498 const u8 *tsc, gfp_t gfp)
13500 struct sk_buff *msg;
13503 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13507 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13513 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13514 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13515 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13516 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13518 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13519 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13520 goto nla_put_failure;
13522 genlmsg_end(msg, hdr);
13524 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13525 NL80211_MCGRP_MLME, gfp);
13529 genlmsg_cancel(msg, hdr);
13533 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13534 struct ieee80211_channel *channel_before,
13535 struct ieee80211_channel *channel_after)
13537 struct sk_buff *msg;
13539 struct nlattr *nl_freq;
13541 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
13545 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
13552 * Since we are applying the beacon hint to a wiphy we know its
13553 * wiphy_idx is valid
13555 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
13556 goto nla_put_failure;
13559 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
13561 goto nla_put_failure;
13562 if (nl80211_msg_put_channel(msg, channel_before, false))
13563 goto nla_put_failure;
13564 nla_nest_end(msg, nl_freq);
13567 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
13569 goto nla_put_failure;
13570 if (nl80211_msg_put_channel(msg, channel_after, false))
13571 goto nla_put_failure;
13572 nla_nest_end(msg, nl_freq);
13574 genlmsg_end(msg, hdr);
13577 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
13578 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
13584 genlmsg_cancel(msg, hdr);
13588 static void nl80211_send_remain_on_chan_event(
13589 int cmd, struct cfg80211_registered_device *rdev,
13590 struct wireless_dev *wdev, u64 cookie,
13591 struct ieee80211_channel *chan,
13592 unsigned int duration, gfp_t gfp)
13594 struct sk_buff *msg;
13597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13601 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13607 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13608 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13609 wdev->netdev->ifindex)) ||
13610 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13611 NL80211_ATTR_PAD) ||
13612 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
13613 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
13614 NL80211_CHAN_NO_HT) ||
13615 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13617 goto nla_put_failure;
13619 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
13620 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
13621 goto nla_put_failure;
13623 genlmsg_end(msg, hdr);
13625 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13626 NL80211_MCGRP_MLME, gfp);
13630 genlmsg_cancel(msg, hdr);
13634 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
13635 struct ieee80211_channel *chan,
13636 unsigned int duration, gfp_t gfp)
13638 struct wiphy *wiphy = wdev->wiphy;
13639 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13641 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
13642 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
13643 rdev, wdev, cookie, chan,
13646 EXPORT_SYMBOL(cfg80211_ready_on_channel);
13648 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
13649 struct ieee80211_channel *chan,
13652 struct wiphy *wiphy = wdev->wiphy;
13653 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13655 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
13656 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
13657 rdev, wdev, cookie, chan, 0, gfp);
13659 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
13661 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
13662 struct station_info *sinfo, gfp_t gfp)
13664 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
13665 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13666 struct sk_buff *msg;
13668 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
13670 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13674 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
13675 rdev, dev, mac_addr, sinfo) < 0) {
13680 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13681 NL80211_MCGRP_MLME, gfp);
13683 EXPORT_SYMBOL(cfg80211_new_sta);
13685 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
13686 struct station_info *sinfo, gfp_t gfp)
13688 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
13689 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13690 struct sk_buff *msg;
13691 struct station_info empty_sinfo = {};
13694 sinfo = &empty_sinfo;
13696 trace_cfg80211_del_sta(dev, mac_addr);
13698 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13702 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
13703 rdev, dev, mac_addr, sinfo) < 0) {
13708 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13709 NL80211_MCGRP_MLME, gfp);
13711 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
13713 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
13714 enum nl80211_connect_failed_reason reason,
13717 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
13718 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13719 struct sk_buff *msg;
13722 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
13726 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
13732 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13733 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
13734 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
13735 goto nla_put_failure;
13737 genlmsg_end(msg, hdr);
13739 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13740 NL80211_MCGRP_MLME, gfp);
13744 genlmsg_cancel(msg, hdr);
13747 EXPORT_SYMBOL(cfg80211_conn_failed);
13749 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
13750 const u8 *addr, gfp_t gfp)
13752 struct wireless_dev *wdev = dev->ieee80211_ptr;
13753 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13754 struct sk_buff *msg;
13756 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
13761 msg = nlmsg_new(100, gfp);
13765 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13771 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13772 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13773 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13774 goto nla_put_failure;
13776 genlmsg_end(msg, hdr);
13777 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13781 genlmsg_cancel(msg, hdr);
13786 bool cfg80211_rx_spurious_frame(struct net_device *dev,
13787 const u8 *addr, gfp_t gfp)
13789 struct wireless_dev *wdev = dev->ieee80211_ptr;
13792 trace_cfg80211_rx_spurious_frame(dev, addr);
13794 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13795 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
13796 trace_cfg80211_return_bool(false);
13799 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
13801 trace_cfg80211_return_bool(ret);
13804 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
13806 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
13807 const u8 *addr, gfp_t gfp)
13809 struct wireless_dev *wdev = dev->ieee80211_ptr;
13812 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
13814 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13815 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
13816 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
13817 trace_cfg80211_return_bool(false);
13820 ret = __nl80211_unexpected_frame(dev,
13821 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
13823 trace_cfg80211_return_bool(ret);
13826 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
13828 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
13829 struct wireless_dev *wdev, u32 nlportid,
13830 int freq, int sig_dbm,
13831 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
13833 struct net_device *netdev = wdev->netdev;
13834 struct sk_buff *msg;
13837 msg = nlmsg_new(100 + len, gfp);
13841 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13847 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13848 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13849 netdev->ifindex)) ||
13850 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13851 NL80211_ATTR_PAD) ||
13852 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
13854 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13855 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
13857 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
13858 goto nla_put_failure;
13860 genlmsg_end(msg, hdr);
13862 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13865 genlmsg_cancel(msg, hdr);
13870 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
13871 const u8 *buf, size_t len, bool ack, gfp_t gfp)
13873 struct wiphy *wiphy = wdev->wiphy;
13874 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13875 struct net_device *netdev = wdev->netdev;
13876 struct sk_buff *msg;
13879 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
13881 msg = nlmsg_new(100 + len, gfp);
13885 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
13891 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13892 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13893 netdev->ifindex)) ||
13894 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13895 NL80211_ATTR_PAD) ||
13896 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
13897 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13898 NL80211_ATTR_PAD) ||
13899 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
13900 goto nla_put_failure;
13902 genlmsg_end(msg, hdr);
13904 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13905 NL80211_MCGRP_MLME, gfp);
13909 genlmsg_cancel(msg, hdr);
13912 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
13914 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
13915 const char *mac, gfp_t gfp)
13917 struct wireless_dev *wdev = dev->ieee80211_ptr;
13918 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13919 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13925 cb = (void **)msg->cb;
13927 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
13933 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13934 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
13935 goto nla_put_failure;
13937 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
13938 goto nla_put_failure;
13940 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
13942 goto nla_put_failure;
13952 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
13954 void **cb = (void **)msg->cb;
13955 struct cfg80211_registered_device *rdev = cb[2];
13957 nla_nest_end(msg, cb[1]);
13958 genlmsg_end(msg, cb[0]);
13960 memset(msg->cb, 0, sizeof(msg->cb));
13962 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13963 NL80211_MCGRP_MLME, gfp);
13966 void cfg80211_cqm_rssi_notify(struct net_device *dev,
13967 enum nl80211_cqm_rssi_threshold_event rssi_event,
13968 s32 rssi_level, gfp_t gfp)
13970 struct sk_buff *msg;
13972 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
13974 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13975 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13978 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13982 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13984 goto nla_put_failure;
13986 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
13988 goto nla_put_failure;
13990 cfg80211_send_cqm(msg, gfp);
13997 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
13999 void cfg80211_cqm_txe_notify(struct net_device *dev,
14000 const u8 *peer, u32 num_packets,
14001 u32 rate, u32 intvl, gfp_t gfp)
14003 struct sk_buff *msg;
14005 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14009 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14010 goto nla_put_failure;
14012 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14013 goto nla_put_failure;
14015 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14016 goto nla_put_failure;
14018 cfg80211_send_cqm(msg, gfp);
14024 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14026 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14027 const u8 *peer, u32 num_packets, gfp_t gfp)
14029 struct sk_buff *msg;
14031 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14033 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14037 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14038 goto nla_put_failure;
14040 cfg80211_send_cqm(msg, gfp);
14046 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14048 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14050 struct sk_buff *msg;
14052 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14056 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14057 goto nla_put_failure;
14059 cfg80211_send_cqm(msg, gfp);
14065 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14067 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14068 struct net_device *netdev, const u8 *bssid,
14069 const u8 *replay_ctr, gfp_t gfp)
14071 struct sk_buff *msg;
14072 struct nlattr *rekey_attr;
14075 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14079 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14085 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14086 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14087 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14088 goto nla_put_failure;
14090 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14092 goto nla_put_failure;
14094 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14095 NL80211_REPLAY_CTR_LEN, replay_ctr))
14096 goto nla_put_failure;
14098 nla_nest_end(msg, rekey_attr);
14100 genlmsg_end(msg, hdr);
14102 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14103 NL80211_MCGRP_MLME, gfp);
14107 genlmsg_cancel(msg, hdr);
14111 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14112 const u8 *replay_ctr, gfp_t gfp)
14114 struct wireless_dev *wdev = dev->ieee80211_ptr;
14115 struct wiphy *wiphy = wdev->wiphy;
14116 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14118 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14119 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14121 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14124 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14125 struct net_device *netdev, int index,
14126 const u8 *bssid, bool preauth, gfp_t gfp)
14128 struct sk_buff *msg;
14129 struct nlattr *attr;
14132 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14136 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14142 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14143 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14144 goto nla_put_failure;
14146 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14148 goto nla_put_failure;
14150 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14151 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14153 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14154 goto nla_put_failure;
14156 nla_nest_end(msg, attr);
14158 genlmsg_end(msg, hdr);
14160 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14161 NL80211_MCGRP_MLME, gfp);
14165 genlmsg_cancel(msg, hdr);
14169 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14170 const u8 *bssid, bool preauth, gfp_t gfp)
14172 struct wireless_dev *wdev = dev->ieee80211_ptr;
14173 struct wiphy *wiphy = wdev->wiphy;
14174 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14176 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14177 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14179 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14181 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14182 struct net_device *netdev,
14183 struct cfg80211_chan_def *chandef,
14185 enum nl80211_commands notif,
14188 struct sk_buff *msg;
14191 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14195 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
14201 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14202 goto nla_put_failure;
14204 if (nl80211_send_chandef(msg, chandef))
14205 goto nla_put_failure;
14207 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14208 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14209 goto nla_put_failure;
14211 genlmsg_end(msg, hdr);
14213 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14214 NL80211_MCGRP_MLME, gfp);
14218 genlmsg_cancel(msg, hdr);
14222 void cfg80211_ch_switch_notify(struct net_device *dev,
14223 struct cfg80211_chan_def *chandef)
14225 struct wireless_dev *wdev = dev->ieee80211_ptr;
14226 struct wiphy *wiphy = wdev->wiphy;
14227 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14229 ASSERT_WDEV_LOCK(wdev);
14231 trace_cfg80211_ch_switch_notify(dev, chandef);
14233 wdev->chandef = *chandef;
14234 wdev->preset_chandef = *chandef;
14235 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14236 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
14238 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14240 void cfg80211_ch_switch_started_notify(struct net_device *dev,
14241 struct cfg80211_chan_def *chandef,
14244 struct wireless_dev *wdev = dev->ieee80211_ptr;
14245 struct wiphy *wiphy = wdev->wiphy;
14246 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14248 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14250 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14251 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14253 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14256 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
14257 const struct cfg80211_chan_def *chandef,
14258 enum nl80211_radar_event event,
14259 struct net_device *netdev, gfp_t gfp)
14261 struct sk_buff *msg;
14264 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14268 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14274 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14275 goto nla_put_failure;
14277 /* NOP and radar events don't need a netdev parameter */
14279 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14281 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14282 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14284 goto nla_put_failure;
14287 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14288 goto nla_put_failure;
14290 if (nl80211_send_chandef(msg, chandef))
14291 goto nla_put_failure;
14293 genlmsg_end(msg, hdr);
14295 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14296 NL80211_MCGRP_MLME, gfp);
14300 genlmsg_cancel(msg, hdr);
14304 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14305 u64 cookie, bool acked, gfp_t gfp)
14307 struct wireless_dev *wdev = dev->ieee80211_ptr;
14308 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14309 struct sk_buff *msg;
14312 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14314 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14319 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14326 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14327 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
14328 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14329 NL80211_ATTR_PAD) ||
14330 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14331 goto nla_put_failure;
14333 genlmsg_end(msg, hdr);
14335 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14336 NL80211_MCGRP_MLME, gfp);
14340 genlmsg_cancel(msg, hdr);
14343 EXPORT_SYMBOL(cfg80211_probe_status);
14345 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14346 const u8 *frame, size_t len,
14347 int freq, int sig_dbm)
14349 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14350 struct sk_buff *msg;
14352 struct cfg80211_beacon_registration *reg;
14354 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14356 spin_lock_bh(&rdev->beacon_registrations_lock);
14357 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14358 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14360 spin_unlock_bh(&rdev->beacon_registrations_lock);
14364 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14366 goto nla_put_failure;
14368 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14370 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14372 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14373 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14374 goto nla_put_failure;
14376 genlmsg_end(msg, hdr);
14378 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14380 spin_unlock_bh(&rdev->beacon_registrations_lock);
14384 spin_unlock_bh(&rdev->beacon_registrations_lock);
14386 genlmsg_cancel(msg, hdr);
14389 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14392 static int cfg80211_net_detect_results(struct sk_buff *msg,
14393 struct cfg80211_wowlan_wakeup *wakeup)
14395 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14396 struct nlattr *nl_results, *nl_match, *nl_freqs;
14399 nl_results = nla_nest_start(
14400 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14404 for (i = 0; i < nd->n_matches; i++) {
14405 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14407 nl_match = nla_nest_start(msg, i);
14411 /* The SSID attribute is optional in nl80211, but for
14412 * simplicity reasons it's always present in the
14413 * cfg80211 structure. If a driver can't pass the
14414 * SSID, that needs to be changed. A zero length SSID
14415 * is still a valid SSID (wildcard), so it cannot be
14416 * used for this purpose.
14418 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14419 match->ssid.ssid)) {
14420 nla_nest_cancel(msg, nl_match);
14424 if (match->n_channels) {
14425 nl_freqs = nla_nest_start(
14426 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14428 nla_nest_cancel(msg, nl_match);
14432 for (j = 0; j < match->n_channels; j++) {
14433 if (nla_put_u32(msg, j, match->channels[j])) {
14434 nla_nest_cancel(msg, nl_freqs);
14435 nla_nest_cancel(msg, nl_match);
14440 nla_nest_end(msg, nl_freqs);
14443 nla_nest_end(msg, nl_match);
14447 nla_nest_end(msg, nl_results);
14451 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14452 struct cfg80211_wowlan_wakeup *wakeup,
14455 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14456 struct sk_buff *msg;
14460 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14463 size += wakeup->packet_present_len;
14465 msg = nlmsg_new(size, gfp);
14469 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14473 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14474 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14478 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14479 wdev->netdev->ifindex))
14483 struct nlattr *reasons;
14485 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
14489 if (wakeup->disconnect &&
14490 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14492 if (wakeup->magic_pkt &&
14493 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14495 if (wakeup->gtk_rekey_failure &&
14496 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14498 if (wakeup->eap_identity_req &&
14499 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14501 if (wakeup->four_way_handshake &&
14502 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14504 if (wakeup->rfkill_release &&
14505 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14508 if (wakeup->pattern_idx >= 0 &&
14509 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14510 wakeup->pattern_idx))
14513 if (wakeup->tcp_match &&
14514 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14517 if (wakeup->tcp_connlost &&
14518 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14521 if (wakeup->tcp_nomoretokens &&
14523 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14526 if (wakeup->packet) {
14527 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14528 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
14530 if (!wakeup->packet_80211) {
14532 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
14534 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
14537 if (wakeup->packet_len &&
14538 nla_put_u32(msg, len_attr, wakeup->packet_len))
14541 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
14546 if (wakeup->net_detect &&
14547 cfg80211_net_detect_results(msg, wakeup))
14550 nla_nest_end(msg, reasons);
14553 genlmsg_end(msg, hdr);
14555 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14556 NL80211_MCGRP_MLME, gfp);
14562 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
14565 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
14566 enum nl80211_tdls_operation oper,
14567 u16 reason_code, gfp_t gfp)
14569 struct wireless_dev *wdev = dev->ieee80211_ptr;
14570 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14571 struct sk_buff *msg;
14574 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
14577 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14581 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
14587 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14588 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14589 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
14590 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
14591 (reason_code > 0 &&
14592 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
14593 goto nla_put_failure;
14595 genlmsg_end(msg, hdr);
14597 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14598 NL80211_MCGRP_MLME, gfp);
14602 genlmsg_cancel(msg, hdr);
14605 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
14607 static int nl80211_netlink_notify(struct notifier_block * nb,
14608 unsigned long state,
14611 struct netlink_notify *notify = _notify;
14612 struct cfg80211_registered_device *rdev;
14613 struct wireless_dev *wdev;
14614 struct cfg80211_beacon_registration *reg, *tmp;
14616 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
14617 return NOTIFY_DONE;
14621 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
14622 bool schedule_destroy_work = false;
14623 struct cfg80211_sched_scan_request *sched_scan_req =
14624 rcu_dereference(rdev->sched_scan_req);
14626 if (sched_scan_req && notify->portid &&
14627 sched_scan_req->owner_nlportid == notify->portid) {
14628 sched_scan_req->owner_nlportid = 0;
14630 if (rdev->ops->sched_scan_stop &&
14631 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
14632 schedule_work(&rdev->sched_scan_stop_wk);
14635 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
14636 cfg80211_mlme_unregister_socket(wdev, notify->portid);
14638 if (wdev->owner_nlportid == notify->portid)
14639 schedule_destroy_work = true;
14640 else if (wdev->conn_owner_nlportid == notify->portid)
14641 schedule_work(&wdev->disconnect_wk);
14644 spin_lock_bh(&rdev->beacon_registrations_lock);
14645 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
14647 if (reg->nlportid == notify->portid) {
14648 list_del(®->list);
14653 spin_unlock_bh(&rdev->beacon_registrations_lock);
14655 if (schedule_destroy_work) {
14656 struct cfg80211_iface_destroy *destroy;
14658 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
14660 destroy->nlportid = notify->portid;
14661 spin_lock(&rdev->destroy_list_lock);
14662 list_add(&destroy->list, &rdev->destroy_list);
14663 spin_unlock(&rdev->destroy_list_lock);
14664 schedule_work(&rdev->destroy_work);
14672 * It is possible that the user space process that is controlling the
14673 * indoor setting disappeared, so notify the regulatory core.
14675 regulatory_netlink_notify(notify->portid);
14679 static struct notifier_block nl80211_netlink_notifier = {
14680 .notifier_call = nl80211_netlink_notify,
14683 void cfg80211_ft_event(struct net_device *netdev,
14684 struct cfg80211_ft_event_params *ft_event)
14686 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
14687 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14688 struct sk_buff *msg;
14691 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
14693 if (!ft_event->target_ap)
14696 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
14700 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
14704 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14705 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14706 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
14709 if (ft_event->ies &&
14710 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
14712 if (ft_event->ric_ies &&
14713 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
14714 ft_event->ric_ies))
14717 genlmsg_end(msg, hdr);
14719 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14720 NL80211_MCGRP_MLME, GFP_KERNEL);
14725 EXPORT_SYMBOL(cfg80211_ft_event);
14727 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
14729 struct cfg80211_registered_device *rdev;
14730 struct sk_buff *msg;
14734 rdev = wiphy_to_rdev(wdev->wiphy);
14735 if (!rdev->crit_proto_nlportid)
14738 nlportid = rdev->crit_proto_nlportid;
14739 rdev->crit_proto_nlportid = 0;
14741 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14745 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
14747 goto nla_put_failure;
14749 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14750 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14752 goto nla_put_failure;
14754 genlmsg_end(msg, hdr);
14756 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14761 genlmsg_cancel(msg, hdr);
14764 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
14766 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
14768 struct wiphy *wiphy = wdev->wiphy;
14769 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14770 struct sk_buff *msg;
14773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14777 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
14781 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14782 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
14783 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14787 genlmsg_end(msg, hdr);
14789 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
14790 NL80211_MCGRP_MLME, GFP_KERNEL);
14796 /* initialisation/exit functions */
14798 int __init nl80211_init(void)
14802 err = genl_register_family(&nl80211_fam);
14806 err = netlink_register_notifier(&nl80211_netlink_notifier);
14812 genl_unregister_family(&nl80211_fam);
14816 void nl80211_exit(void)
14818 netlink_unregister_notifier(&nl80211_netlink_notifier);
14819 genl_unregister_family(&nl80211_fam);