2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
6 * Copyright 2015-2017 Intel Deutschland GmbH
7 * Copyright (C) 2018 Intel Corporation
11 #include <linux/module.h>
12 #include <linux/err.h>
13 #include <linux/slab.h>
14 #include <linux/list.h>
15 #include <linux/if_ether.h>
16 #include <linux/ieee80211.h>
17 #include <linux/nl80211.h>
18 #include <linux/rtnetlink.h>
19 #include <linux/netlink.h>
20 #include <linux/nospec.h>
21 #include <linux/etherdevice.h>
22 #include <net/net_namespace.h>
23 #include <net/genetlink.h>
24 #include <net/cfg80211.h>
26 #include <net/inet_connection_sock.h>
32 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
33 struct genl_info *info,
34 struct cfg80211_crypto_settings *settings,
37 /* the netlink family */
38 static struct genl_family nl80211_fam;
40 /* multicast groups */
41 enum nl80211_multicast_groups {
44 NL80211_MCGRP_REGULATORY,
48 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
51 static const struct genl_multicast_group nl80211_mcgrps[] = {
52 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
53 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
54 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
55 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
56 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
57 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
58 #ifdef CONFIG_NL80211_TESTMODE
59 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
63 /* returns ERR_PTR values */
64 static struct wireless_dev *
65 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
67 struct cfg80211_registered_device *rdev;
68 struct wireless_dev *result = NULL;
69 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
70 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
77 if (!have_ifidx && !have_wdev_id)
78 return ERR_PTR(-EINVAL);
81 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
83 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
84 wiphy_idx = wdev_id >> 32;
87 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
88 struct wireless_dev *wdev;
90 if (wiphy_net(&rdev->wiphy) != netns)
93 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
96 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
97 if (have_ifidx && wdev->netdev &&
98 wdev->netdev->ifindex == ifidx) {
102 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
114 return ERR_PTR(-ENODEV);
117 static struct cfg80211_registered_device *
118 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
120 struct cfg80211_registered_device *rdev = NULL, *tmp;
121 struct net_device *netdev;
125 if (!attrs[NL80211_ATTR_WIPHY] &&
126 !attrs[NL80211_ATTR_IFINDEX] &&
127 !attrs[NL80211_ATTR_WDEV])
128 return ERR_PTR(-EINVAL);
130 if (attrs[NL80211_ATTR_WIPHY])
131 rdev = cfg80211_rdev_by_wiphy_idx(
132 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
134 if (attrs[NL80211_ATTR_WDEV]) {
135 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
136 struct wireless_dev *wdev;
139 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
141 /* make sure wdev exists */
142 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
143 if (wdev->identifier != (u32)wdev_id)
152 if (rdev && tmp != rdev)
153 return ERR_PTR(-EINVAL);
158 if (attrs[NL80211_ATTR_IFINDEX]) {
159 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
161 netdev = __dev_get_by_index(netns, ifindex);
163 if (netdev->ieee80211_ptr)
165 netdev->ieee80211_ptr->wiphy);
169 /* not wireless device -- return error */
171 return ERR_PTR(-EINVAL);
173 /* mismatch -- return error */
174 if (rdev && tmp != rdev)
175 return ERR_PTR(-EINVAL);
182 return ERR_PTR(-ENODEV);
184 if (netns != wiphy_net(&rdev->wiphy))
185 return ERR_PTR(-ENODEV);
191 * This function returns a pointer to the driver
192 * that the genl_info item that is passed refers to.
194 * The result of this can be a PTR_ERR and hence must
195 * be checked with IS_ERR() for errors.
197 static struct cfg80211_registered_device *
198 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
200 return __cfg80211_rdev_from_attrs(netns, info->attrs);
203 static int validate_ie_attr(const struct nlattr *attr,
204 struct netlink_ext_ack *extack)
209 pos = nla_data(attr);
229 NL_SET_ERR_MSG_ATTR(extack, attr, "malformed information elements");
233 /* policy for the attributes */
234 static const struct nla_policy
235 nl80211_ftm_responder_policy[NL80211_FTM_RESP_ATTR_MAX + 1] = {
236 [NL80211_FTM_RESP_ATTR_ENABLED] = { .type = NLA_FLAG, },
237 [NL80211_FTM_RESP_ATTR_LCI] = { .type = NLA_BINARY,
239 [NL80211_FTM_RESP_ATTR_CIVICLOC] = { .type = NLA_BINARY,
243 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
244 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
245 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
247 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
249 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
250 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
251 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
252 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
253 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
255 [NL80211_ATTR_WIPHY_RETRY_SHORT] = NLA_POLICY_MIN(NLA_U8, 1),
256 [NL80211_ATTR_WIPHY_RETRY_LONG] = NLA_POLICY_MIN(NLA_U8, 1),
257 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
258 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
259 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
260 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
262 [NL80211_ATTR_IFTYPE] = NLA_POLICY_MAX(NLA_U32, NL80211_IFTYPE_MAX),
263 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
264 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
266 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
267 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
269 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
270 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
271 .len = WLAN_MAX_KEY_LEN },
272 [NL80211_ATTR_KEY_IDX] = NLA_POLICY_MAX(NLA_U8, 5),
273 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
274 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
275 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
276 [NL80211_ATTR_KEY_TYPE] =
277 NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES),
279 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
280 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
281 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
283 [NL80211_ATTR_BEACON_TAIL] =
284 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr,
285 IEEE80211_MAX_DATA_LEN),
286 [NL80211_ATTR_STA_AID] =
287 NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID),
288 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
289 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
290 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
291 .len = NL80211_MAX_SUPP_RATES },
292 [NL80211_ATTR_STA_PLINK_ACTION] =
293 NLA_POLICY_MAX(NLA_U8, NUM_NL80211_PLINK_ACTIONS - 1),
294 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
295 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
296 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
297 .len = IEEE80211_MAX_MESH_ID_LEN },
298 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
300 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
301 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
303 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
304 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
305 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
306 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
307 .len = NL80211_MAX_SUPP_RATES },
308 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
310 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
311 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
313 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
315 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
316 [NL80211_ATTR_IE] = NLA_POLICY_VALIDATE_FN(NLA_BINARY,
318 IEEE80211_MAX_DATA_LEN),
319 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
320 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
322 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_SSID_LEN },
324 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
325 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
326 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
327 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
328 [NL80211_ATTR_USE_MFP] = NLA_POLICY_RANGE(NLA_U32,
330 NL80211_MFP_OPTIONAL),
331 [NL80211_ATTR_STA_FLAGS2] = {
332 .len = sizeof(struct nl80211_sta_flag_update),
334 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
335 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
336 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
337 [NL80211_ATTR_CONTROL_PORT_OVER_NL80211] = { .type = NLA_FLAG },
338 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
339 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
340 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
341 [NL80211_ATTR_PID] = { .type = NLA_U32 },
342 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
343 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
344 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
345 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
346 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
347 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
348 .len = IEEE80211_MAX_DATA_LEN },
349 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
350 [NL80211_ATTR_PS_STATE] = NLA_POLICY_RANGE(NLA_U32,
353 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
354 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
355 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
356 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
357 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
358 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
359 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
360 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
361 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
362 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
363 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
364 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
365 [NL80211_ATTR_STA_PLINK_STATE] =
366 NLA_POLICY_MAX(NLA_U8, NUM_NL80211_PLINK_STATES - 1),
367 [NL80211_ATTR_MESH_PEER_AID] =
368 NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID),
369 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
370 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
371 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
372 [NL80211_ATTR_HIDDEN_SSID] =
373 NLA_POLICY_RANGE(NLA_U32,
374 NL80211_HIDDEN_SSID_NOT_IN_USE,
375 NL80211_HIDDEN_SSID_ZERO_CONTENTS),
376 [NL80211_ATTR_IE_PROBE_RESP] =
377 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr,
378 IEEE80211_MAX_DATA_LEN),
379 [NL80211_ATTR_IE_ASSOC_RESP] =
380 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr,
381 IEEE80211_MAX_DATA_LEN),
382 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
383 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
384 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
385 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
386 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
387 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
388 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
389 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
390 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
391 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
392 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
393 .len = IEEE80211_MAX_DATA_LEN },
394 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
395 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
396 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
397 .len = NL80211_HT_CAPABILITY_LEN
399 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
400 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
401 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
402 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
403 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
404 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
405 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
406 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
407 [NL80211_ATTR_P2P_CTWINDOW] = NLA_POLICY_MAX(NLA_U8, 127),
408 [NL80211_ATTR_P2P_OPPPS] = NLA_POLICY_MAX(NLA_U8, 1),
409 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] =
410 NLA_POLICY_RANGE(NLA_U32,
411 NL80211_MESH_POWER_UNKNOWN + 1,
412 NL80211_MESH_POWER_MAX),
413 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
414 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
415 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
416 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
417 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
418 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
419 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
420 .len = NL80211_VHT_CAPABILITY_LEN,
422 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
423 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
424 .len = IEEE80211_MAX_DATA_LEN },
425 [NL80211_ATTR_PEER_AID] =
426 NLA_POLICY_RANGE(NLA_U16, 1, IEEE80211_MAX_AID),
427 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
428 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
429 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
430 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
431 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
432 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
433 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
434 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
435 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
436 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
437 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
438 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
439 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
440 .len = IEEE80211_QOS_MAP_LEN_MAX },
441 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
442 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
443 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
444 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
445 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
446 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
447 [NL80211_ATTR_TSID] = NLA_POLICY_MAX(NLA_U8, IEEE80211_NUM_TIDS - 1),
448 [NL80211_ATTR_USER_PRIO] =
449 NLA_POLICY_MAX(NLA_U8, IEEE80211_NUM_UPS - 1),
450 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
451 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
452 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
453 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
454 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
455 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
456 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
457 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
458 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
459 [NL80211_ATTR_STA_SUPPORT_P2P_PS] =
460 NLA_POLICY_MAX(NLA_U8, NUM_NL80211_P2P_PS_STATUS - 1),
461 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
462 .len = VHT_MUMIMO_GROUPS_DATA_LEN
464 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
465 [NL80211_ATTR_NAN_MASTER_PREF] = NLA_POLICY_MIN(NLA_U8, 1),
466 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
467 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
468 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
469 .len = FILS_MAX_KEK_LEN },
470 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
471 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
472 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
473 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
474 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
475 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
477 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
478 [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
479 .len = FILS_ERP_MAX_USERNAME_LEN },
480 [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
481 .len = FILS_ERP_MAX_REALM_LEN },
482 [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
483 [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
484 .len = FILS_ERP_MAX_RRK_LEN },
485 [NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 },
486 [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
487 [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
488 [NL80211_ATTR_EXTERNAL_AUTH_SUPPORT] = { .type = NLA_FLAG },
490 [NL80211_ATTR_TXQ_LIMIT] = { .type = NLA_U32 },
491 [NL80211_ATTR_TXQ_MEMORY_LIMIT] = { .type = NLA_U32 },
492 [NL80211_ATTR_TXQ_QUANTUM] = { .type = NLA_U32 },
493 [NL80211_ATTR_HE_CAPABILITY] = { .type = NLA_BINARY,
494 .len = NL80211_HE_MAX_CAPABILITY_LEN },
496 [NL80211_ATTR_FTM_RESPONDER] = {
498 .validation_data = nl80211_ftm_responder_policy,
502 /* policy for the key attributes */
503 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
504 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
505 [NL80211_KEY_IDX] = { .type = NLA_U8 },
506 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
507 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
508 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
509 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
510 [NL80211_KEY_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES - 1),
511 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
514 /* policy for the key default flags */
515 static const struct nla_policy
516 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
517 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
518 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
522 /* policy for WoWLAN attributes */
523 static const struct nla_policy
524 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
525 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
526 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
527 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
528 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
529 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
530 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
531 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
532 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
533 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
534 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
537 static const struct nla_policy
538 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
539 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
540 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
541 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
542 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
543 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
544 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
545 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
546 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
548 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
549 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
551 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
552 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
553 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
555 #endif /* CONFIG_PM */
557 /* policy for coalesce rule attributes */
558 static const struct nla_policy
559 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
560 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
561 [NL80211_ATTR_COALESCE_RULE_CONDITION] =
562 NLA_POLICY_RANGE(NLA_U32,
563 NL80211_COALESCE_CONDITION_MATCH,
564 NL80211_COALESCE_CONDITION_NO_MATCH),
565 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
568 /* policy for GTK rekey offload attributes */
569 static const struct nla_policy
570 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
571 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
572 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
573 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
576 static const struct nla_policy
577 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
578 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
579 .len = IEEE80211_MAX_SSID_LEN },
580 [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN },
581 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
584 static const struct nla_policy
585 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
586 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
587 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
590 static const struct nla_policy
591 nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
592 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
593 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
594 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
595 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
599 /* policy for NAN function attributes */
600 static const struct nla_policy
601 nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
602 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
603 [NL80211_NAN_FUNC_SERVICE_ID] = {
604 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
605 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
606 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
607 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
608 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
609 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
610 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
611 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
612 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
613 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
614 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
615 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
616 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
617 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
618 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
619 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
622 /* policy for Service Response Filter attributes */
623 static const struct nla_policy
624 nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
625 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
626 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
627 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
628 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
629 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
632 /* policy for packet pattern attributes */
633 static const struct nla_policy
634 nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
635 [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
636 [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
637 [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
640 static int nl80211_prepare_wdev_dump(struct netlink_callback *cb,
641 struct cfg80211_registered_device **rdev,
642 struct wireless_dev **wdev)
647 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
648 genl_family_attrbuf(&nl80211_fam),
649 nl80211_fam.maxattr, nl80211_policy, NULL);
653 *wdev = __cfg80211_wdev_from_attrs(
654 sock_net(cb->skb->sk),
655 genl_family_attrbuf(&nl80211_fam));
657 return PTR_ERR(*wdev);
658 *rdev = wiphy_to_rdev((*wdev)->wiphy);
659 /* 0 is the first index - add 1 to parse only once */
660 cb->args[0] = (*rdev)->wiphy_idx + 1;
661 cb->args[1] = (*wdev)->identifier;
663 /* subtract the 1 again here */
664 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
665 struct wireless_dev *tmp;
669 *rdev = wiphy_to_rdev(wiphy);
672 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
673 if (tmp->identifier == cb->args[1]) {
686 /* message building helper */
687 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
690 /* since there is no private header just add the generic one */
691 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
694 static int nl80211_msg_put_wmm_rules(struct sk_buff *msg,
695 const struct ieee80211_reg_rule *rule)
698 struct nlattr *nl_wmm_rules =
699 nla_nest_start(msg, NL80211_FREQUENCY_ATTR_WMM);
702 goto nla_put_failure;
704 for (j = 0; j < IEEE80211_NUM_ACS; j++) {
705 struct nlattr *nl_wmm_rule = nla_nest_start(msg, j);
708 goto nla_put_failure;
710 if (nla_put_u16(msg, NL80211_WMMR_CW_MIN,
711 rule->wmm_rule.client[j].cw_min) ||
712 nla_put_u16(msg, NL80211_WMMR_CW_MAX,
713 rule->wmm_rule.client[j].cw_max) ||
714 nla_put_u8(msg, NL80211_WMMR_AIFSN,
715 rule->wmm_rule.client[j].aifsn) ||
716 nla_put_u16(msg, NL80211_WMMR_TXOP,
717 rule->wmm_rule.client[j].cot))
718 goto nla_put_failure;
720 nla_nest_end(msg, nl_wmm_rule);
722 nla_nest_end(msg, nl_wmm_rules);
730 static int nl80211_msg_put_channel(struct sk_buff *msg, struct wiphy *wiphy,
731 struct ieee80211_channel *chan,
734 /* Some channels must be completely excluded from the
735 * list to protect old user-space tools from breaking
737 if (!large && chan->flags &
738 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
741 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
743 goto nla_put_failure;
745 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
746 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
747 goto nla_put_failure;
748 if (chan->flags & IEEE80211_CHAN_NO_IR) {
749 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
750 goto nla_put_failure;
751 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
752 goto nla_put_failure;
754 if (chan->flags & IEEE80211_CHAN_RADAR) {
755 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
756 goto nla_put_failure;
760 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
762 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
764 goto nla_put_failure;
765 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
767 goto nla_put_failure;
769 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
771 goto nla_put_failure;
776 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
777 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
778 goto nla_put_failure;
779 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
780 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
781 goto nla_put_failure;
782 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
783 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
784 goto nla_put_failure;
785 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
786 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
787 goto nla_put_failure;
788 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
789 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
790 goto nla_put_failure;
791 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
792 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
793 goto nla_put_failure;
794 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
795 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
796 goto nla_put_failure;
797 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
798 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
799 goto nla_put_failure;
802 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
803 DBM_TO_MBM(chan->max_power)))
804 goto nla_put_failure;
807 const struct ieee80211_reg_rule *rule =
808 freq_reg_info(wiphy, MHZ_TO_KHZ(chan->center_freq));
810 if (!IS_ERR_OR_NULL(rule) && rule->has_wmm) {
811 if (nl80211_msg_put_wmm_rules(msg, rule))
812 goto nla_put_failure;
822 static bool nl80211_put_txq_stats(struct sk_buff *msg,
823 struct cfg80211_txq_stats *txqstats,
826 struct nlattr *txqattr;
828 #define PUT_TXQVAL_U32(attr, memb) do { \
829 if (txqstats->filled & BIT(NL80211_TXQ_STATS_ ## attr) && \
830 nla_put_u32(msg, NL80211_TXQ_STATS_ ## attr, txqstats->memb)) \
834 txqattr = nla_nest_start(msg, attrtype);
838 PUT_TXQVAL_U32(BACKLOG_BYTES, backlog_bytes);
839 PUT_TXQVAL_U32(BACKLOG_PACKETS, backlog_packets);
840 PUT_TXQVAL_U32(FLOWS, flows);
841 PUT_TXQVAL_U32(DROPS, drops);
842 PUT_TXQVAL_U32(ECN_MARKS, ecn_marks);
843 PUT_TXQVAL_U32(OVERLIMIT, overlimit);
844 PUT_TXQVAL_U32(OVERMEMORY, overmemory);
845 PUT_TXQVAL_U32(COLLISIONS, collisions);
846 PUT_TXQVAL_U32(TX_BYTES, tx_bytes);
847 PUT_TXQVAL_U32(TX_PACKETS, tx_packets);
848 PUT_TXQVAL_U32(MAX_FLOWS, max_flows);
849 nla_nest_end(msg, txqattr);
851 #undef PUT_TXQVAL_U32
855 /* netlink command implementations */
862 bool def_uni, def_multi;
865 static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key,
868 struct nlattr *tb[NL80211_KEY_MAX + 1];
869 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
870 nl80211_key_policy, info->extack);
874 k->def = !!tb[NL80211_KEY_DEFAULT];
875 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
884 if (tb[NL80211_KEY_IDX])
885 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
887 if (tb[NL80211_KEY_DATA]) {
888 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
889 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
892 if (tb[NL80211_KEY_SEQ]) {
893 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
894 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
897 if (tb[NL80211_KEY_CIPHER])
898 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
900 if (tb[NL80211_KEY_TYPE])
901 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
903 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
904 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
906 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
907 tb[NL80211_KEY_DEFAULT_TYPES],
908 nl80211_key_default_policy,
913 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
914 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
920 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
922 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
923 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
924 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
927 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
928 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
929 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
932 if (info->attrs[NL80211_ATTR_KEY_IDX])
933 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
935 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
936 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
938 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
939 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
948 if (info->attrs[NL80211_ATTR_KEY_TYPE])
949 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
951 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
952 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
953 int err = nla_parse_nested(kdt,
954 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
955 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
956 nl80211_key_default_policy,
961 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
962 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
968 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
972 memset(k, 0, sizeof(*k));
976 if (info->attrs[NL80211_ATTR_KEY])
977 err = nl80211_parse_key_new(info, info->attrs[NL80211_ATTR_KEY], k);
979 err = nl80211_parse_key_old(info, k);
984 if (k->def && k->defmgmt) {
985 GENL_SET_ERR_MSG(info, "key with def && defmgmt is invalid");
990 if (k->def_uni || !k->def_multi) {
991 GENL_SET_ERR_MSG(info, "defmgmt key must be mcast");
998 if (k->idx < 4 || k->idx > 5) {
999 GENL_SET_ERR_MSG(info,
1000 "defmgmt key idx not 4 or 5");
1003 } else if (k->def) {
1004 if (k->idx < 0 || k->idx > 3) {
1005 GENL_SET_ERR_MSG(info, "def key idx not 0-3");
1009 if (k->idx < 0 || k->idx > 5) {
1010 GENL_SET_ERR_MSG(info, "key idx not 0-5");
1019 static struct cfg80211_cached_keys *
1020 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
1021 struct genl_info *info, bool *no_ht)
1023 struct nlattr *keys = info->attrs[NL80211_ATTR_KEYS];
1024 struct key_parse parse;
1026 struct cfg80211_cached_keys *result;
1027 int rem, err, def = 0;
1028 bool have_key = false;
1030 nla_for_each_nested(key, keys, rem) {
1038 result = kzalloc(sizeof(*result), GFP_KERNEL);
1040 return ERR_PTR(-ENOMEM);
1044 nla_for_each_nested(key, keys, rem) {
1045 memset(&parse, 0, sizeof(parse));
1048 err = nl80211_parse_key_new(info, key, &parse);
1054 if (parse.idx < 0 || parse.idx > 3) {
1055 GENL_SET_ERR_MSG(info, "key index out of range [0-3]");
1060 GENL_SET_ERR_MSG(info,
1061 "only one key can be default");
1065 result->def = parse.idx;
1066 if (!parse.def_uni || !parse.def_multi)
1068 } else if (parse.defmgmt)
1070 err = cfg80211_validate_key_settings(rdev, &parse.p,
1071 parse.idx, false, NULL);
1074 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
1075 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
1076 GENL_SET_ERR_MSG(info, "connect key must be WEP");
1080 result->params[parse.idx].cipher = parse.p.cipher;
1081 result->params[parse.idx].key_len = parse.p.key_len;
1082 result->params[parse.idx].key = result->data[parse.idx];
1083 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
1085 /* must be WEP key if we got here */
1090 if (result->def < 0) {
1092 GENL_SET_ERR_MSG(info, "need a default/TX key");
1099 return ERR_PTR(err);
1102 static int nl80211_key_allowed(struct wireless_dev *wdev)
1104 ASSERT_WDEV_LOCK(wdev);
1106 switch (wdev->iftype) {
1107 case NL80211_IFTYPE_AP:
1108 case NL80211_IFTYPE_AP_VLAN:
1109 case NL80211_IFTYPE_P2P_GO:
1110 case NL80211_IFTYPE_MESH_POINT:
1112 case NL80211_IFTYPE_ADHOC:
1113 case NL80211_IFTYPE_STATION:
1114 case NL80211_IFTYPE_P2P_CLIENT:
1115 if (!wdev->current_bss)
1118 case NL80211_IFTYPE_UNSPECIFIED:
1119 case NL80211_IFTYPE_OCB:
1120 case NL80211_IFTYPE_MONITOR:
1121 case NL80211_IFTYPE_NAN:
1122 case NL80211_IFTYPE_P2P_DEVICE:
1123 case NL80211_IFTYPE_WDS:
1124 case NUM_NL80211_IFTYPES:
1131 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
1134 struct ieee80211_channel *chan;
1138 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
1139 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
1144 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
1146 struct nlattr *nl_modes = nla_nest_start(msg, attr);
1150 goto nla_put_failure;
1154 if ((ifmodes & 1) && nla_put_flag(msg, i))
1155 goto nla_put_failure;
1160 nla_nest_end(msg, nl_modes);
1167 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
1168 struct sk_buff *msg,
1171 struct nlattr *nl_combis;
1174 nl_combis = nla_nest_start(msg,
1175 NL80211_ATTR_INTERFACE_COMBINATIONS);
1177 goto nla_put_failure;
1179 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1180 const struct ieee80211_iface_combination *c;
1181 struct nlattr *nl_combi, *nl_limits;
1183 c = &wiphy->iface_combinations[i];
1185 nl_combi = nla_nest_start(msg, i + 1);
1187 goto nla_put_failure;
1189 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1191 goto nla_put_failure;
1193 for (j = 0; j < c->n_limits; j++) {
1194 struct nlattr *nl_limit;
1196 nl_limit = nla_nest_start(msg, j + 1);
1198 goto nla_put_failure;
1199 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1201 goto nla_put_failure;
1202 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1203 c->limits[j].types))
1204 goto nla_put_failure;
1205 nla_nest_end(msg, nl_limit);
1208 nla_nest_end(msg, nl_limits);
1210 if (c->beacon_int_infra_match &&
1211 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1212 goto nla_put_failure;
1213 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1214 c->num_different_channels) ||
1215 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1217 goto nla_put_failure;
1219 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1220 c->radar_detect_widths) ||
1221 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1222 c->radar_detect_regions)))
1223 goto nla_put_failure;
1224 if (c->beacon_int_min_gcd &&
1225 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1226 c->beacon_int_min_gcd))
1227 goto nla_put_failure;
1229 nla_nest_end(msg, nl_combi);
1232 nla_nest_end(msg, nl_combis);
1240 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1241 struct sk_buff *msg)
1243 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1244 struct nlattr *nl_tcp;
1249 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1253 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1254 tcp->data_payload_max))
1257 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1258 tcp->data_payload_max))
1261 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1264 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1265 sizeof(*tcp->tok), tcp->tok))
1268 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1269 tcp->data_interval_max))
1272 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1273 tcp->wake_payload_max))
1276 nla_nest_end(msg, nl_tcp);
1280 static int nl80211_send_wowlan(struct sk_buff *msg,
1281 struct cfg80211_registered_device *rdev,
1284 struct nlattr *nl_wowlan;
1286 if (!rdev->wiphy.wowlan)
1289 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1293 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1294 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1295 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1296 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1297 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1299 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1301 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1303 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1305 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1307 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1311 if (rdev->wiphy.wowlan->n_patterns) {
1312 struct nl80211_pattern_support pat = {
1313 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1314 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1315 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1316 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1319 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1324 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1325 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1326 rdev->wiphy.wowlan->max_nd_match_sets))
1329 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1332 nla_nest_end(msg, nl_wowlan);
1338 static int nl80211_send_coalesce(struct sk_buff *msg,
1339 struct cfg80211_registered_device *rdev)
1341 struct nl80211_coalesce_rule_support rule;
1343 if (!rdev->wiphy.coalesce)
1346 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1347 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1348 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1349 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1350 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1351 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1353 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1360 nl80211_send_iftype_data(struct sk_buff *msg,
1361 const struct ieee80211_sband_iftype_data *iftdata)
1363 const struct ieee80211_sta_he_cap *he_cap = &iftdata->he_cap;
1365 if (nl80211_put_iftypes(msg, NL80211_BAND_IFTYPE_ATTR_IFTYPES,
1366 iftdata->types_mask))
1369 if (he_cap->has_he) {
1370 if (nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MAC,
1371 sizeof(he_cap->he_cap_elem.mac_cap_info),
1372 he_cap->he_cap_elem.mac_cap_info) ||
1373 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PHY,
1374 sizeof(he_cap->he_cap_elem.phy_cap_info),
1375 he_cap->he_cap_elem.phy_cap_info) ||
1376 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_MCS_SET,
1377 sizeof(he_cap->he_mcs_nss_supp),
1378 &he_cap->he_mcs_nss_supp) ||
1379 nla_put(msg, NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE,
1380 sizeof(he_cap->ppe_thres), he_cap->ppe_thres))
1387 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1388 struct ieee80211_supported_band *sband)
1390 struct nlattr *nl_rates, *nl_rate;
1391 struct ieee80211_rate *rate;
1395 if (sband->ht_cap.ht_supported &&
1396 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1397 sizeof(sband->ht_cap.mcs),
1398 &sband->ht_cap.mcs) ||
1399 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1400 sband->ht_cap.cap) ||
1401 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1402 sband->ht_cap.ampdu_factor) ||
1403 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1404 sband->ht_cap.ampdu_density)))
1408 if (sband->vht_cap.vht_supported &&
1409 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1410 sizeof(sband->vht_cap.vht_mcs),
1411 &sband->vht_cap.vht_mcs) ||
1412 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1413 sband->vht_cap.cap)))
1416 if (sband->n_iftype_data) {
1417 struct nlattr *nl_iftype_data =
1418 nla_nest_start(msg, NL80211_BAND_ATTR_IFTYPE_DATA);
1421 if (!nl_iftype_data)
1424 for (i = 0; i < sband->n_iftype_data; i++) {
1425 struct nlattr *iftdata;
1427 iftdata = nla_nest_start(msg, i + 1);
1431 err = nl80211_send_iftype_data(msg,
1432 &sband->iftype_data[i]);
1436 nla_nest_end(msg, iftdata);
1439 nla_nest_end(msg, nl_iftype_data);
1443 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1447 for (i = 0; i < sband->n_bitrates; i++) {
1448 nl_rate = nla_nest_start(msg, i);
1452 rate = &sband->bitrates[i];
1453 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1456 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1458 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1461 nla_nest_end(msg, nl_rate);
1464 nla_nest_end(msg, nl_rates);
1470 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1471 const struct ieee80211_txrx_stypes *mgmt_stypes)
1474 struct nlattr *nl_ftypes, *nl_ifs;
1475 enum nl80211_iftype ift;
1481 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1485 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1486 nl_ftypes = nla_nest_start(msg, ift);
1490 stypes = mgmt_stypes[ift].tx;
1493 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1494 (i << 4) | IEEE80211_FTYPE_MGMT))
1499 nla_nest_end(msg, nl_ftypes);
1502 nla_nest_end(msg, nl_ifs);
1504 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1508 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1509 nl_ftypes = nla_nest_start(msg, ift);
1513 stypes = mgmt_stypes[ift].rx;
1516 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1517 (i << 4) | IEEE80211_FTYPE_MGMT))
1522 nla_nest_end(msg, nl_ftypes);
1524 nla_nest_end(msg, nl_ifs);
1529 #define CMD(op, n) \
1531 if (rdev->ops->op) { \
1533 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1534 goto nla_put_failure; \
1538 static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1539 struct sk_buff *msg)
1544 * do *NOT* add anything into this function, new things need to be
1545 * advertised only to new versions of userspace that can deal with
1546 * the split (and they can't possibly care about new features...
1548 CMD(add_virtual_intf, NEW_INTERFACE);
1549 CMD(change_virtual_intf, SET_INTERFACE);
1550 CMD(add_key, NEW_KEY);
1551 CMD(start_ap, START_AP);
1552 CMD(add_station, NEW_STATION);
1553 CMD(add_mpath, NEW_MPATH);
1554 CMD(update_mesh_config, SET_MESH_CONFIG);
1555 CMD(change_bss, SET_BSS);
1556 CMD(auth, AUTHENTICATE);
1557 CMD(assoc, ASSOCIATE);
1558 CMD(deauth, DEAUTHENTICATE);
1559 CMD(disassoc, DISASSOCIATE);
1560 CMD(join_ibss, JOIN_IBSS);
1561 CMD(join_mesh, JOIN_MESH);
1562 CMD(set_pmksa, SET_PMKSA);
1563 CMD(del_pmksa, DEL_PMKSA);
1564 CMD(flush_pmksa, FLUSH_PMKSA);
1565 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1566 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1567 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1568 CMD(mgmt_tx, FRAME);
1569 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1570 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1572 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1573 goto nla_put_failure;
1575 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1576 rdev->ops->join_mesh) {
1578 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1579 goto nla_put_failure;
1581 CMD(set_wds_peer, SET_WDS_PEER);
1582 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1583 CMD(tdls_mgmt, TDLS_MGMT);
1584 CMD(tdls_oper, TDLS_OPER);
1586 if (rdev->wiphy.max_sched_scan_reqs)
1587 CMD(sched_scan_start, START_SCHED_SCAN);
1588 CMD(probe_client, PROBE_CLIENT);
1589 CMD(set_noack_map, SET_NOACK_MAP);
1590 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1592 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1593 goto nla_put_failure;
1595 CMD(start_p2p_device, START_P2P_DEVICE);
1596 CMD(set_mcast_rate, SET_MCAST_RATE);
1597 #ifdef CONFIG_NL80211_TESTMODE
1598 CMD(testmode_cmd, TESTMODE);
1601 if (rdev->ops->connect || rdev->ops->auth) {
1603 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1604 goto nla_put_failure;
1607 if (rdev->ops->disconnect || rdev->ops->deauth) {
1609 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1610 goto nla_put_failure;
1618 struct nl80211_dump_wiphy_state {
1621 long split_start, band_start, chan_start, capa_start;
1625 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1626 enum nl80211_commands cmd,
1627 struct sk_buff *msg, u32 portid, u32 seq,
1628 int flags, struct nl80211_dump_wiphy_state *state)
1631 struct nlattr *nl_bands, *nl_band;
1632 struct nlattr *nl_freqs, *nl_freq;
1633 struct nlattr *nl_cmds;
1634 enum nl80211_band band;
1635 struct ieee80211_channel *chan;
1637 const struct ieee80211_txrx_stypes *mgmt_stypes =
1638 rdev->wiphy.mgmt_stypes;
1641 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1645 if (WARN_ON(!state))
1648 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1649 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1650 wiphy_name(&rdev->wiphy)) ||
1651 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1652 cfg80211_rdev_list_generation))
1653 goto nla_put_failure;
1655 if (cmd != NL80211_CMD_NEW_WIPHY)
1658 switch (state->split_start) {
1660 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1661 rdev->wiphy.retry_short) ||
1662 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1663 rdev->wiphy.retry_long) ||
1664 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1665 rdev->wiphy.frag_threshold) ||
1666 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1667 rdev->wiphy.rts_threshold) ||
1668 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1669 rdev->wiphy.coverage_class) ||
1670 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1671 rdev->wiphy.max_scan_ssids) ||
1672 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1673 rdev->wiphy.max_sched_scan_ssids) ||
1674 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1675 rdev->wiphy.max_scan_ie_len) ||
1676 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1677 rdev->wiphy.max_sched_scan_ie_len) ||
1678 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1679 rdev->wiphy.max_match_sets) ||
1680 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1681 rdev->wiphy.max_sched_scan_plans) ||
1682 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1683 rdev->wiphy.max_sched_scan_plan_interval) ||
1684 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1685 rdev->wiphy.max_sched_scan_plan_iterations))
1686 goto nla_put_failure;
1688 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1689 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1690 goto nla_put_failure;
1691 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1692 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1693 goto nla_put_failure;
1694 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1695 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1696 goto nla_put_failure;
1697 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1698 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1699 goto nla_put_failure;
1700 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1701 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1702 goto nla_put_failure;
1703 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1704 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1705 goto nla_put_failure;
1706 state->split_start++;
1710 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1711 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1712 rdev->wiphy.cipher_suites))
1713 goto nla_put_failure;
1715 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1716 rdev->wiphy.max_num_pmkids))
1717 goto nla_put_failure;
1719 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1720 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1721 goto nla_put_failure;
1723 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1724 rdev->wiphy.available_antennas_tx) ||
1725 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1726 rdev->wiphy.available_antennas_rx))
1727 goto nla_put_failure;
1729 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1730 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1731 rdev->wiphy.probe_resp_offload))
1732 goto nla_put_failure;
1734 if ((rdev->wiphy.available_antennas_tx ||
1735 rdev->wiphy.available_antennas_rx) &&
1736 rdev->ops->get_antenna) {
1737 u32 tx_ant = 0, rx_ant = 0;
1740 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1742 if (nla_put_u32(msg,
1743 NL80211_ATTR_WIPHY_ANTENNA_TX,
1746 NL80211_ATTR_WIPHY_ANTENNA_RX,
1748 goto nla_put_failure;
1752 state->split_start++;
1756 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1757 rdev->wiphy.interface_modes))
1758 goto nla_put_failure;
1759 state->split_start++;
1763 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1765 goto nla_put_failure;
1767 for (band = state->band_start;
1768 band < NUM_NL80211_BANDS; band++) {
1769 struct ieee80211_supported_band *sband;
1771 sband = rdev->wiphy.bands[band];
1776 nl_band = nla_nest_start(msg, band);
1778 goto nla_put_failure;
1780 switch (state->chan_start) {
1782 if (nl80211_send_band_rateinfo(msg, sband))
1783 goto nla_put_failure;
1784 state->chan_start++;
1788 /* add frequencies */
1789 nl_freqs = nla_nest_start(
1790 msg, NL80211_BAND_ATTR_FREQS);
1792 goto nla_put_failure;
1794 for (i = state->chan_start - 1;
1795 i < sband->n_channels;
1797 nl_freq = nla_nest_start(msg, i);
1799 goto nla_put_failure;
1801 chan = &sband->channels[i];
1803 if (nl80211_msg_put_channel(
1804 msg, &rdev->wiphy, chan,
1806 goto nla_put_failure;
1808 nla_nest_end(msg, nl_freq);
1812 if (i < sband->n_channels)
1813 state->chan_start = i + 2;
1815 state->chan_start = 0;
1816 nla_nest_end(msg, nl_freqs);
1819 nla_nest_end(msg, nl_band);
1822 /* start again here */
1823 if (state->chan_start)
1828 nla_nest_end(msg, nl_bands);
1830 if (band < NUM_NL80211_BANDS)
1831 state->band_start = band + 1;
1833 state->band_start = 0;
1835 /* if bands & channels are done, continue outside */
1836 if (state->band_start == 0 && state->chan_start == 0)
1837 state->split_start++;
1841 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1843 goto nla_put_failure;
1845 i = nl80211_add_commands_unsplit(rdev, msg);
1847 goto nla_put_failure;
1849 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1850 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1851 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1852 CMD(channel_switch, CHANNEL_SWITCH);
1853 CMD(set_qos_map, SET_QOS_MAP);
1854 if (rdev->wiphy.features &
1855 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1856 CMD(add_tx_ts, ADD_TX_TS);
1857 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
1858 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
1862 nla_nest_end(msg, nl_cmds);
1863 state->split_start++;
1867 if (rdev->ops->remain_on_channel &&
1868 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1870 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1871 rdev->wiphy.max_remain_on_channel_duration))
1872 goto nla_put_failure;
1874 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1875 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1876 goto nla_put_failure;
1878 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1879 goto nla_put_failure;
1880 state->split_start++;
1885 if (nl80211_send_wowlan(msg, rdev, state->split))
1886 goto nla_put_failure;
1887 state->split_start++;
1891 state->split_start++;
1894 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1895 rdev->wiphy.software_iftypes))
1896 goto nla_put_failure;
1898 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1900 goto nla_put_failure;
1902 state->split_start++;
1906 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1907 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1908 rdev->wiphy.ap_sme_capa))
1909 goto nla_put_failure;
1911 features = rdev->wiphy.features;
1913 * We can only add the per-channel limit information if the
1914 * dump is split, otherwise it makes it too big. Therefore
1915 * only advertise it in that case.
1918 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1919 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1920 goto nla_put_failure;
1922 if (rdev->wiphy.ht_capa_mod_mask &&
1923 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1924 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1925 rdev->wiphy.ht_capa_mod_mask))
1926 goto nla_put_failure;
1928 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1929 rdev->wiphy.max_acl_mac_addrs &&
1930 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1931 rdev->wiphy.max_acl_mac_addrs))
1932 goto nla_put_failure;
1935 * Any information below this point is only available to
1936 * applications that can deal with it being split. This
1937 * helps ensure that newly added capabilities don't break
1938 * older tools by overrunning their buffers.
1940 * We still increment split_start so that in the split
1941 * case we'll continue with more data in the next round,
1942 * but break unconditionally so unsplit data stops here.
1944 state->split_start++;
1947 if (rdev->wiphy.extended_capabilities &&
1948 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1949 rdev->wiphy.extended_capabilities_len,
1950 rdev->wiphy.extended_capabilities) ||
1951 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1952 rdev->wiphy.extended_capabilities_len,
1953 rdev->wiphy.extended_capabilities_mask)))
1954 goto nla_put_failure;
1956 if (rdev->wiphy.vht_capa_mod_mask &&
1957 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1958 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1959 rdev->wiphy.vht_capa_mod_mask))
1960 goto nla_put_failure;
1962 state->split_start++;
1965 if (nl80211_send_coalesce(msg, rdev))
1966 goto nla_put_failure;
1968 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1969 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1970 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1971 goto nla_put_failure;
1973 if (rdev->wiphy.max_ap_assoc_sta &&
1974 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1975 rdev->wiphy.max_ap_assoc_sta))
1976 goto nla_put_failure;
1978 state->split_start++;
1981 if (rdev->wiphy.n_vendor_commands) {
1982 const struct nl80211_vendor_cmd_info *info;
1983 struct nlattr *nested;
1985 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1987 goto nla_put_failure;
1989 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1990 info = &rdev->wiphy.vendor_commands[i].info;
1991 if (nla_put(msg, i + 1, sizeof(*info), info))
1992 goto nla_put_failure;
1994 nla_nest_end(msg, nested);
1997 if (rdev->wiphy.n_vendor_events) {
1998 const struct nl80211_vendor_cmd_info *info;
1999 struct nlattr *nested;
2001 nested = nla_nest_start(msg,
2002 NL80211_ATTR_VENDOR_EVENTS);
2004 goto nla_put_failure;
2006 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
2007 info = &rdev->wiphy.vendor_events[i];
2008 if (nla_put(msg, i + 1, sizeof(*info), info))
2009 goto nla_put_failure;
2011 nla_nest_end(msg, nested);
2013 state->split_start++;
2016 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
2017 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
2018 rdev->wiphy.max_num_csa_counters))
2019 goto nla_put_failure;
2021 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
2022 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
2023 goto nla_put_failure;
2025 if (rdev->wiphy.max_sched_scan_reqs &&
2026 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
2027 rdev->wiphy.max_sched_scan_reqs))
2028 goto nla_put_failure;
2030 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
2031 sizeof(rdev->wiphy.ext_features),
2032 rdev->wiphy.ext_features))
2033 goto nla_put_failure;
2035 if (rdev->wiphy.bss_select_support) {
2036 struct nlattr *nested;
2037 u32 bss_select_support = rdev->wiphy.bss_select_support;
2039 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
2041 goto nla_put_failure;
2044 while (bss_select_support) {
2045 if ((bss_select_support & 1) &&
2046 nla_put_flag(msg, i))
2047 goto nla_put_failure;
2049 bss_select_support >>= 1;
2051 nla_nest_end(msg, nested);
2054 state->split_start++;
2057 if (rdev->wiphy.num_iftype_ext_capab &&
2058 rdev->wiphy.iftype_ext_capab) {
2059 struct nlattr *nested_ext_capab, *nested;
2061 nested = nla_nest_start(msg,
2062 NL80211_ATTR_IFTYPE_EXT_CAPA);
2064 goto nla_put_failure;
2066 for (i = state->capa_start;
2067 i < rdev->wiphy.num_iftype_ext_capab; i++) {
2068 const struct wiphy_iftype_ext_capab *capab;
2070 capab = &rdev->wiphy.iftype_ext_capab[i];
2072 nested_ext_capab = nla_nest_start(msg, i);
2073 if (!nested_ext_capab ||
2074 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
2076 nla_put(msg, NL80211_ATTR_EXT_CAPA,
2077 capab->extended_capabilities_len,
2078 capab->extended_capabilities) ||
2079 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
2080 capab->extended_capabilities_len,
2081 capab->extended_capabilities_mask))
2082 goto nla_put_failure;
2084 nla_nest_end(msg, nested_ext_capab);
2088 nla_nest_end(msg, nested);
2089 if (i < rdev->wiphy.num_iftype_ext_capab) {
2090 state->capa_start = i + 1;
2095 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
2096 rdev->wiphy.nan_supported_bands))
2097 goto nla_put_failure;
2099 if (wiphy_ext_feature_isset(&rdev->wiphy,
2100 NL80211_EXT_FEATURE_TXQS)) {
2101 struct cfg80211_txq_stats txqstats = {};
2104 res = rdev_get_txq_stats(rdev, NULL, &txqstats);
2106 !nl80211_put_txq_stats(msg, &txqstats,
2107 NL80211_ATTR_TXQ_STATS))
2108 goto nla_put_failure;
2110 if (nla_put_u32(msg, NL80211_ATTR_TXQ_LIMIT,
2111 rdev->wiphy.txq_limit))
2112 goto nla_put_failure;
2113 if (nla_put_u32(msg, NL80211_ATTR_TXQ_MEMORY_LIMIT,
2114 rdev->wiphy.txq_memory_limit))
2115 goto nla_put_failure;
2116 if (nla_put_u32(msg, NL80211_ATTR_TXQ_QUANTUM,
2117 rdev->wiphy.txq_quantum))
2118 goto nla_put_failure;
2122 state->split_start = 0;
2126 genlmsg_end(msg, hdr);
2130 genlmsg_cancel(msg, hdr);
2134 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
2135 struct netlink_callback *cb,
2136 struct nl80211_dump_wiphy_state *state)
2138 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
2139 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
2140 nl80211_fam.maxattr, nl80211_policy, NULL);
2141 /* ignore parse errors for backward compatibility */
2145 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
2146 if (tb[NL80211_ATTR_WIPHY])
2147 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
2148 if (tb[NL80211_ATTR_WDEV])
2149 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
2150 if (tb[NL80211_ATTR_IFINDEX]) {
2151 struct net_device *netdev;
2152 struct cfg80211_registered_device *rdev;
2153 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2155 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
2158 if (netdev->ieee80211_ptr) {
2159 rdev = wiphy_to_rdev(
2160 netdev->ieee80211_ptr->wiphy);
2161 state->filter_wiphy = rdev->wiphy_idx;
2168 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
2171 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
2172 struct cfg80211_registered_device *rdev;
2176 state = kzalloc(sizeof(*state), GFP_KERNEL);
2181 state->filter_wiphy = -1;
2182 ret = nl80211_dump_wiphy_parse(skb, cb, state);
2188 cb->args[0] = (long)state;
2191 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2192 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2194 if (++idx <= state->start)
2196 if (state->filter_wiphy != -1 &&
2197 state->filter_wiphy != rdev->wiphy_idx)
2199 /* attempt to fit multiple wiphy data chunks into the skb */
2201 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
2203 NETLINK_CB(cb->skb).portid,
2205 NLM_F_MULTI, state);
2208 * If sending the wiphy data didn't fit (ENOBUFS
2209 * or EMSGSIZE returned), this SKB is still
2210 * empty (so it's not too big because another
2211 * wiphy dataset is already in the skb) and
2212 * we've not tried to adjust the dump allocation
2213 * yet ... then adjust the alloc size to be
2214 * bigger, and return 1 but with the empty skb.
2215 * This results in an empty message being RX'ed
2216 * in userspace, but that is ignored.
2218 * We can then retry with the larger buffer.
2220 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
2221 !skb->len && !state->split &&
2222 cb->min_dump_alloc < 4096) {
2223 cb->min_dump_alloc = 4096;
2224 state->split_start = 0;
2231 } while (state->split_start > 0);
2241 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2243 kfree((void *)cb->args[0]);
2247 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2249 struct sk_buff *msg;
2250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2251 struct nl80211_dump_wiphy_state state = {};
2253 msg = nlmsg_new(4096, GFP_KERNEL);
2257 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2258 info->snd_portid, info->snd_seq, 0,
2264 return genlmsg_reply(msg, info);
2267 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2268 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2269 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2270 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2271 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2272 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2275 static int parse_txq_params(struct nlattr *tb[],
2276 struct ieee80211_txq_params *txq_params)
2280 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
2281 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2282 !tb[NL80211_TXQ_ATTR_AIFS])
2285 ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
2286 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2287 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2288 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2289 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2291 if (ac >= NL80211_NUM_ACS)
2293 txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS);
2297 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2300 * You can only set the channel explicitly for WDS interfaces,
2301 * all others have their channel managed via their respective
2302 * "establish a connection" command (connect, join, ...)
2304 * For AP/GO and mesh mode, the channel can be set with the
2305 * channel userspace API, but is only stored and passed to the
2306 * low-level driver when the AP starts or the mesh is joined.
2307 * This is for backward compatibility, userspace can also give
2308 * the channel in the start-ap or join-mesh commands instead.
2310 * Monitors are special as they are normally slaved to
2311 * whatever else is going on, so they have their own special
2312 * operation to set the monitor channel if possible.
2315 wdev->iftype == NL80211_IFTYPE_AP ||
2316 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
2317 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2318 wdev->iftype == NL80211_IFTYPE_P2P_GO;
2321 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2322 struct genl_info *info,
2323 struct cfg80211_chan_def *chandef)
2325 struct netlink_ext_ack *extack = info->extack;
2326 struct nlattr **attrs = info->attrs;
2329 if (!attrs[NL80211_ATTR_WIPHY_FREQ])
2332 control_freq = nla_get_u32(attrs[NL80211_ATTR_WIPHY_FREQ]);
2334 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
2335 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2336 chandef->center_freq1 = control_freq;
2337 chandef->center_freq2 = 0;
2339 /* Primary channel not allowed */
2340 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED) {
2341 NL_SET_ERR_MSG_ATTR(extack, attrs[NL80211_ATTR_WIPHY_FREQ],
2342 "Channel is disabled");
2346 if (attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2347 enum nl80211_channel_type chantype;
2349 chantype = nla_get_u32(attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2352 case NL80211_CHAN_NO_HT:
2353 case NL80211_CHAN_HT20:
2354 case NL80211_CHAN_HT40PLUS:
2355 case NL80211_CHAN_HT40MINUS:
2356 cfg80211_chandef_create(chandef, chandef->chan,
2358 /* user input for center_freq is incorrect */
2359 if (attrs[NL80211_ATTR_CENTER_FREQ1] &&
2360 chandef->center_freq1 != nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ1])) {
2361 NL_SET_ERR_MSG_ATTR(extack,
2362 attrs[NL80211_ATTR_CENTER_FREQ1],
2363 "bad center frequency 1");
2366 /* center_freq2 must be zero */
2367 if (attrs[NL80211_ATTR_CENTER_FREQ2] &&
2368 nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ2])) {
2369 NL_SET_ERR_MSG_ATTR(extack,
2370 attrs[NL80211_ATTR_CENTER_FREQ2],
2371 "center frequency 2 can't be used");
2376 NL_SET_ERR_MSG_ATTR(extack,
2377 attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE],
2378 "invalid channel type");
2381 } else if (attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2383 nla_get_u32(attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2384 if (attrs[NL80211_ATTR_CENTER_FREQ1])
2385 chandef->center_freq1 =
2386 nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ1]);
2387 if (attrs[NL80211_ATTR_CENTER_FREQ2])
2388 chandef->center_freq2 =
2389 nla_get_u32(attrs[NL80211_ATTR_CENTER_FREQ2]);
2392 if (!cfg80211_chandef_valid(chandef)) {
2393 NL_SET_ERR_MSG(extack, "invalid channel definition");
2397 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2398 IEEE80211_CHAN_DISABLED)) {
2399 NL_SET_ERR_MSG(extack, "(extension) channel is disabled");
2403 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2404 chandef->width == NL80211_CHAN_WIDTH_10) &&
2405 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ)) {
2406 NL_SET_ERR_MSG(extack, "5/10 MHz not supported");
2413 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2414 struct net_device *dev,
2415 struct genl_info *info)
2417 struct cfg80211_chan_def chandef;
2419 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2420 struct wireless_dev *wdev = NULL;
2423 wdev = dev->ieee80211_ptr;
2424 if (!nl80211_can_set_dev_channel(wdev))
2427 iftype = wdev->iftype;
2429 result = nl80211_parse_chandef(rdev, info, &chandef);
2434 case NL80211_IFTYPE_AP:
2435 case NL80211_IFTYPE_P2P_GO:
2436 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2441 if (wdev->beacon_interval) {
2442 if (!dev || !rdev->ops->set_ap_chanwidth ||
2443 !(rdev->wiphy.features &
2444 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2449 /* Only allow dynamic channel width changes */
2450 if (chandef.chan != wdev->preset_chandef.chan) {
2454 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2458 wdev->preset_chandef = chandef;
2461 case NL80211_IFTYPE_MESH_POINT:
2462 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2464 case NL80211_IFTYPE_MONITOR:
2465 result = cfg80211_set_monitor_channel(rdev, &chandef);
2474 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2477 struct net_device *netdev = info->user_ptr[1];
2479 return __nl80211_set_channel(rdev, netdev, info);
2482 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2485 struct net_device *dev = info->user_ptr[1];
2486 struct wireless_dev *wdev = dev->ieee80211_ptr;
2489 if (!info->attrs[NL80211_ATTR_MAC])
2492 if (netif_running(dev))
2495 if (!rdev->ops->set_wds_peer)
2498 if (wdev->iftype != NL80211_IFTYPE_WDS)
2501 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2502 return rdev_set_wds_peer(rdev, dev, bssid);
2505 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2507 struct cfg80211_registered_device *rdev;
2508 struct net_device *netdev = NULL;
2509 struct wireless_dev *wdev;
2510 int result = 0, rem_txq_params = 0;
2511 struct nlattr *nl_txq_params;
2513 u8 retry_short = 0, retry_long = 0;
2514 u32 frag_threshold = 0, rts_threshold = 0;
2515 u8 coverage_class = 0;
2516 u32 txq_limit = 0, txq_memory_limit = 0, txq_quantum = 0;
2521 * Try to find the wiphy and netdev. Normally this
2522 * function shouldn't need the netdev, but this is
2523 * done for backward compatibility -- previously
2524 * setting the channel was done per wiphy, but now
2525 * it is per netdev. Previous userland like hostapd
2526 * also passed a netdev to set_wiphy, so that it is
2527 * possible to let that go to the right netdev!
2530 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2531 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2533 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2534 if (netdev && netdev->ieee80211_ptr)
2535 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2541 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2544 return PTR_ERR(rdev);
2549 wdev = netdev->ieee80211_ptr;
2552 * end workaround code, by now the rdev is available
2553 * and locked, and wdev may or may not be NULL.
2556 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2557 result = cfg80211_dev_rename(
2558 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2563 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2564 struct ieee80211_txq_params txq_params;
2565 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2567 if (!rdev->ops->set_txq_params)
2573 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2574 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2577 if (!netif_running(netdev))
2580 nla_for_each_nested(nl_txq_params,
2581 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2583 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2589 result = parse_txq_params(tb, &txq_params);
2593 result = rdev_set_txq_params(rdev, netdev,
2600 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2601 result = __nl80211_set_channel(
2603 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2609 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2610 struct wireless_dev *txp_wdev = wdev;
2611 enum nl80211_tx_power_setting type;
2614 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2617 if (!rdev->ops->set_tx_power)
2620 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2621 type = nla_get_u32(info->attrs[idx]);
2623 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2624 (type != NL80211_TX_POWER_AUTOMATIC))
2627 if (type != NL80211_TX_POWER_AUTOMATIC) {
2628 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2629 mbm = nla_get_u32(info->attrs[idx]);
2632 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2637 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2638 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2641 if ((!rdev->wiphy.available_antennas_tx &&
2642 !rdev->wiphy.available_antennas_rx) ||
2643 !rdev->ops->set_antenna)
2646 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2647 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2649 /* reject antenna configurations which don't match the
2650 * available antenna masks, except for the "all" mask */
2651 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2652 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2655 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2656 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2658 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2665 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2666 retry_short = nla_get_u8(
2667 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2669 changed |= WIPHY_PARAM_RETRY_SHORT;
2672 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2673 retry_long = nla_get_u8(
2674 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2676 changed |= WIPHY_PARAM_RETRY_LONG;
2679 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2680 frag_threshold = nla_get_u32(
2681 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2682 if (frag_threshold < 256)
2685 if (frag_threshold != (u32) -1) {
2687 * Fragments (apart from the last one) are required to
2688 * have even length. Make the fragmentation code
2689 * simpler by stripping LSB should someone try to use
2690 * odd threshold value.
2692 frag_threshold &= ~0x1;
2694 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2697 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2698 rts_threshold = nla_get_u32(
2699 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2700 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2703 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2704 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2707 coverage_class = nla_get_u8(
2708 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2709 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2712 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2713 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2716 changed |= WIPHY_PARAM_DYN_ACK;
2719 if (info->attrs[NL80211_ATTR_TXQ_LIMIT]) {
2720 if (!wiphy_ext_feature_isset(&rdev->wiphy,
2721 NL80211_EXT_FEATURE_TXQS))
2723 txq_limit = nla_get_u32(
2724 info->attrs[NL80211_ATTR_TXQ_LIMIT]);
2725 changed |= WIPHY_PARAM_TXQ_LIMIT;
2728 if (info->attrs[NL80211_ATTR_TXQ_MEMORY_LIMIT]) {
2729 if (!wiphy_ext_feature_isset(&rdev->wiphy,
2730 NL80211_EXT_FEATURE_TXQS))
2732 txq_memory_limit = nla_get_u32(
2733 info->attrs[NL80211_ATTR_TXQ_MEMORY_LIMIT]);
2734 changed |= WIPHY_PARAM_TXQ_MEMORY_LIMIT;
2737 if (info->attrs[NL80211_ATTR_TXQ_QUANTUM]) {
2738 if (!wiphy_ext_feature_isset(&rdev->wiphy,
2739 NL80211_EXT_FEATURE_TXQS))
2741 txq_quantum = nla_get_u32(
2742 info->attrs[NL80211_ATTR_TXQ_QUANTUM]);
2743 changed |= WIPHY_PARAM_TXQ_QUANTUM;
2747 u8 old_retry_short, old_retry_long;
2748 u32 old_frag_threshold, old_rts_threshold;
2749 u8 old_coverage_class;
2750 u32 old_txq_limit, old_txq_memory_limit, old_txq_quantum;
2752 if (!rdev->ops->set_wiphy_params)
2755 old_retry_short = rdev->wiphy.retry_short;
2756 old_retry_long = rdev->wiphy.retry_long;
2757 old_frag_threshold = rdev->wiphy.frag_threshold;
2758 old_rts_threshold = rdev->wiphy.rts_threshold;
2759 old_coverage_class = rdev->wiphy.coverage_class;
2760 old_txq_limit = rdev->wiphy.txq_limit;
2761 old_txq_memory_limit = rdev->wiphy.txq_memory_limit;
2762 old_txq_quantum = rdev->wiphy.txq_quantum;
2764 if (changed & WIPHY_PARAM_RETRY_SHORT)
2765 rdev->wiphy.retry_short = retry_short;
2766 if (changed & WIPHY_PARAM_RETRY_LONG)
2767 rdev->wiphy.retry_long = retry_long;
2768 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2769 rdev->wiphy.frag_threshold = frag_threshold;
2770 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2771 rdev->wiphy.rts_threshold = rts_threshold;
2772 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2773 rdev->wiphy.coverage_class = coverage_class;
2774 if (changed & WIPHY_PARAM_TXQ_LIMIT)
2775 rdev->wiphy.txq_limit = txq_limit;
2776 if (changed & WIPHY_PARAM_TXQ_MEMORY_LIMIT)
2777 rdev->wiphy.txq_memory_limit = txq_memory_limit;
2778 if (changed & WIPHY_PARAM_TXQ_QUANTUM)
2779 rdev->wiphy.txq_quantum = txq_quantum;
2781 result = rdev_set_wiphy_params(rdev, changed);
2783 rdev->wiphy.retry_short = old_retry_short;
2784 rdev->wiphy.retry_long = old_retry_long;
2785 rdev->wiphy.frag_threshold = old_frag_threshold;
2786 rdev->wiphy.rts_threshold = old_rts_threshold;
2787 rdev->wiphy.coverage_class = old_coverage_class;
2788 rdev->wiphy.txq_limit = old_txq_limit;
2789 rdev->wiphy.txq_memory_limit = old_txq_memory_limit;
2790 rdev->wiphy.txq_quantum = old_txq_quantum;
2797 static inline u64 wdev_id(struct wireless_dev *wdev)
2799 return (u64)wdev->identifier |
2800 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2803 static int nl80211_send_chandef(struct sk_buff *msg,
2804 const struct cfg80211_chan_def *chandef)
2806 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2809 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2810 chandef->chan->center_freq))
2812 switch (chandef->width) {
2813 case NL80211_CHAN_WIDTH_20_NOHT:
2814 case NL80211_CHAN_WIDTH_20:
2815 case NL80211_CHAN_WIDTH_40:
2816 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2817 cfg80211_get_chandef_type(chandef)))
2823 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2825 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2827 if (chandef->center_freq2 &&
2828 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2833 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2834 struct cfg80211_registered_device *rdev,
2835 struct wireless_dev *wdev, bool removal)
2837 struct net_device *dev = wdev->netdev;
2838 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2842 cmd = NL80211_CMD_DEL_INTERFACE;
2844 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2849 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2850 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2851 goto nla_put_failure;
2853 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2854 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2855 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2856 NL80211_ATTR_PAD) ||
2857 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2858 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2859 rdev->devlist_generation ^
2860 (cfg80211_rdev_list_generation << 2)) ||
2861 nla_put_u8(msg, NL80211_ATTR_4ADDR, wdev->use_4addr))
2862 goto nla_put_failure;
2864 if (rdev->ops->get_channel) {
2866 struct cfg80211_chan_def chandef;
2868 ret = rdev_get_channel(rdev, wdev, &chandef);
2870 if (nl80211_send_chandef(msg, &chandef))
2871 goto nla_put_failure;
2875 if (rdev->ops->get_tx_power) {
2878 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2880 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2882 goto nla_put_failure;
2886 switch (wdev->iftype) {
2887 case NL80211_IFTYPE_AP:
2888 if (wdev->ssid_len &&
2889 nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2890 goto nla_put_failure_locked;
2892 case NL80211_IFTYPE_STATION:
2893 case NL80211_IFTYPE_P2P_CLIENT:
2894 case NL80211_IFTYPE_ADHOC: {
2896 if (!wdev->current_bss)
2899 ssid_ie = ieee80211_bss_get_ie(&wdev->current_bss->pub,
2902 nla_put(msg, NL80211_ATTR_SSID, ssid_ie[1], ssid_ie + 2))
2903 goto nla_put_failure_rcu_locked;
2913 if (rdev->ops->get_txq_stats) {
2914 struct cfg80211_txq_stats txqstats = {};
2915 int ret = rdev_get_txq_stats(rdev, wdev, &txqstats);
2918 !nl80211_put_txq_stats(msg, &txqstats,
2919 NL80211_ATTR_TXQ_STATS))
2920 goto nla_put_failure;
2923 genlmsg_end(msg, hdr);
2926 nla_put_failure_rcu_locked:
2928 nla_put_failure_locked:
2931 genlmsg_cancel(msg, hdr);
2935 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2939 int wp_start = cb->args[0];
2940 int if_start = cb->args[1];
2941 int filter_wiphy = -1;
2942 struct cfg80211_registered_device *rdev;
2943 struct wireless_dev *wdev;
2948 struct nl80211_dump_wiphy_state state = {
2952 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2956 filter_wiphy = state.filter_wiphy;
2959 * if filtering, set cb->args[2] to +1 since 0 is the default
2960 * value needed to determine that parsing is necessary.
2962 if (filter_wiphy >= 0)
2963 cb->args[2] = filter_wiphy + 1;
2966 } else if (cb->args[2] > 0) {
2967 filter_wiphy = cb->args[2] - 1;
2970 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2971 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2973 if (wp_idx < wp_start) {
2978 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2983 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
2984 if (if_idx < if_start) {
2988 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2989 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2990 rdev, wdev, false) < 0) {
2999 cb->args[0] = wp_idx;
3000 cb->args[1] = if_idx;
3009 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
3011 struct sk_buff *msg;
3012 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3013 struct wireless_dev *wdev = info->user_ptr[1];
3015 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3019 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
3020 rdev, wdev, false) < 0) {
3025 return genlmsg_reply(msg, info);
3028 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
3029 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
3030 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
3031 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
3032 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
3033 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
3034 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
3037 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
3039 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
3047 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
3048 mntr_flags_policy, NULL))
3051 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
3053 *mntrflags |= (1<<flag);
3055 *mntrflags |= MONITOR_FLAG_CHANGED;
3060 static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
3061 enum nl80211_iftype type,
3062 struct genl_info *info,
3063 struct vif_params *params)
3065 bool change = false;
3068 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
3069 if (type != NL80211_IFTYPE_MONITOR)
3072 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
3080 if (params->flags & MONITOR_FLAG_ACTIVE &&
3081 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
3084 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
3085 const u8 *mumimo_groups;
3086 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
3088 if (type != NL80211_IFTYPE_MONITOR)
3091 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
3095 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
3097 /* bits 0 and 63 are reserved and must be zero */
3098 if ((mumimo_groups[0] & BIT(0)) ||
3099 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
3102 params->vht_mumimo_groups = mumimo_groups;
3106 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
3107 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
3109 if (type != NL80211_IFTYPE_MONITOR)
3112 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
3115 params->vht_mumimo_follow_addr =
3116 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
3120 return change ? 1 : 0;
3123 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
3124 struct net_device *netdev, u8 use_4addr,
3125 enum nl80211_iftype iftype)
3128 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
3134 case NL80211_IFTYPE_AP_VLAN:
3135 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
3138 case NL80211_IFTYPE_STATION:
3139 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
3149 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
3151 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3152 struct vif_params params;
3154 enum nl80211_iftype otype, ntype;
3155 struct net_device *dev = info->user_ptr[1];
3156 bool change = false;
3158 memset(¶ms, 0, sizeof(params));
3160 otype = ntype = dev->ieee80211_ptr->iftype;
3162 if (info->attrs[NL80211_ATTR_IFTYPE]) {
3163 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
3168 if (info->attrs[NL80211_ATTR_MESH_ID]) {
3169 struct wireless_dev *wdev = dev->ieee80211_ptr;
3171 if (ntype != NL80211_IFTYPE_MESH_POINT)
3173 if (netif_running(dev))
3177 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
3178 IEEE80211_MAX_MESH_ID_LEN);
3179 wdev->mesh_id_up_len =
3180 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
3181 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
3182 wdev->mesh_id_up_len);
3186 if (info->attrs[NL80211_ATTR_4ADDR]) {
3187 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
3189 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
3193 params.use_4addr = -1;
3196 err = nl80211_parse_mon_options(rdev, ntype, info, ¶ms);
3203 err = cfg80211_change_iface(rdev, dev, ntype, ¶ms);
3207 if (!err && params.use_4addr != -1)
3208 dev->ieee80211_ptr->use_4addr = params.use_4addr;
3213 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
3215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3216 struct vif_params params;
3217 struct wireless_dev *wdev;
3218 struct sk_buff *msg;
3220 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
3222 /* to avoid failing a new interface creation due to pending removal */
3223 cfg80211_destroy_ifaces(rdev);
3225 memset(¶ms, 0, sizeof(params));
3227 if (!info->attrs[NL80211_ATTR_IFNAME])
3230 if (info->attrs[NL80211_ATTR_IFTYPE])
3231 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
3233 if (!rdev->ops->add_virtual_intf ||
3234 !(rdev->wiphy.interface_modes & (1 << type)))
3237 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
3238 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
3239 info->attrs[NL80211_ATTR_MAC]) {
3240 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
3242 if (!is_valid_ether_addr(params.macaddr))
3243 return -EADDRNOTAVAIL;
3246 if (info->attrs[NL80211_ATTR_4ADDR]) {
3247 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
3248 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
3253 err = nl80211_parse_mon_options(rdev, type, info, ¶ms);
3257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3261 wdev = rdev_add_virtual_intf(rdev,
3262 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
3263 NET_NAME_USER, type, ¶ms);
3264 if (WARN_ON(!wdev)) {
3267 } else if (IS_ERR(wdev)) {
3269 return PTR_ERR(wdev);
3272 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
3273 wdev->owner_nlportid = info->snd_portid;
3276 case NL80211_IFTYPE_MESH_POINT:
3277 if (!info->attrs[NL80211_ATTR_MESH_ID])
3280 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
3281 IEEE80211_MAX_MESH_ID_LEN);
3282 wdev->mesh_id_up_len =
3283 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
3284 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
3285 wdev->mesh_id_up_len);
3288 case NL80211_IFTYPE_NAN:
3289 case NL80211_IFTYPE_P2P_DEVICE:
3291 * P2P Device and NAN do not have a netdev, so don't go
3292 * through the netdev notifier and must be added here
3294 cfg80211_init_wdev(rdev, wdev);
3300 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
3301 rdev, wdev, false) < 0) {
3306 return genlmsg_reply(msg, info);
3309 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
3311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3312 struct wireless_dev *wdev = info->user_ptr[1];
3314 if (!rdev->ops->del_virtual_intf)
3318 * If we remove a wireless device without a netdev then clear
3319 * user_ptr[1] so that nl80211_post_doit won't dereference it
3320 * to check if it needs to do dev_put(). Otherwise it crashes
3321 * since the wdev has been freed, unlike with a netdev where
3322 * we need the dev_put() for the netdev to really be freed.
3325 info->user_ptr[1] = NULL;
3327 return rdev_del_virtual_intf(rdev, wdev);
3330 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3333 struct net_device *dev = info->user_ptr[1];
3336 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3339 if (!rdev->ops->set_noack_map)
3342 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3344 return rdev_set_noack_map(rdev, dev, noack_map);
3347 struct get_key_cookie {
3348 struct sk_buff *msg;
3353 static void get_key_callback(void *c, struct key_params *params)
3356 struct get_key_cookie *cookie = c;
3359 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3360 params->key_len, params->key)) ||
3362 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3363 params->seq_len, params->seq)) ||
3365 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3367 goto nla_put_failure;
3369 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3371 goto nla_put_failure;
3374 nla_put(cookie->msg, NL80211_KEY_DATA,
3375 params->key_len, params->key)) ||
3377 nla_put(cookie->msg, NL80211_KEY_SEQ,
3378 params->seq_len, params->seq)) ||
3380 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3382 goto nla_put_failure;
3384 if (nla_put_u8(cookie->msg, NL80211_KEY_IDX, cookie->idx))
3385 goto nla_put_failure;
3387 nla_nest_end(cookie->msg, key);
3394 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3398 struct net_device *dev = info->user_ptr[1];
3400 const u8 *mac_addr = NULL;
3402 struct get_key_cookie cookie = {
3406 struct sk_buff *msg;
3408 if (info->attrs[NL80211_ATTR_KEY_IDX])
3409 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3411 if (info->attrs[NL80211_ATTR_MAC])
3412 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3414 pairwise = !!mac_addr;
3415 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3416 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
3418 if (kt != NL80211_KEYTYPE_GROUP &&
3419 kt != NL80211_KEYTYPE_PAIRWISE)
3421 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3424 if (!rdev->ops->get_key)
3427 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3430 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3434 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3435 NL80211_CMD_NEW_KEY);
3437 goto nla_put_failure;
3440 cookie.idx = key_idx;
3442 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3443 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3444 goto nla_put_failure;
3446 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3447 goto nla_put_failure;
3449 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3456 goto nla_put_failure;
3458 genlmsg_end(msg, hdr);
3459 return genlmsg_reply(msg, info);
3468 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3471 struct key_parse key;
3473 struct net_device *dev = info->user_ptr[1];
3475 err = nl80211_parse_key(info, &key);
3482 /* only support setting default key */
3483 if (!key.def && !key.defmgmt)
3486 wdev_lock(dev->ieee80211_ptr);
3489 if (!rdev->ops->set_default_key) {
3494 err = nl80211_key_allowed(dev->ieee80211_ptr);
3498 err = rdev_set_default_key(rdev, dev, key.idx,
3499 key.def_uni, key.def_multi);
3504 #ifdef CONFIG_CFG80211_WEXT
3505 dev->ieee80211_ptr->wext.default_key = key.idx;
3508 if (key.def_uni || !key.def_multi) {
3513 if (!rdev->ops->set_default_mgmt_key) {
3518 err = nl80211_key_allowed(dev->ieee80211_ptr);
3522 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3526 #ifdef CONFIG_CFG80211_WEXT
3527 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3532 wdev_unlock(dev->ieee80211_ptr);
3537 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3541 struct net_device *dev = info->user_ptr[1];
3542 struct key_parse key;
3543 const u8 *mac_addr = NULL;
3545 err = nl80211_parse_key(info, &key);
3552 if (info->attrs[NL80211_ATTR_MAC])
3553 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3555 if (key.type == -1) {
3557 key.type = NL80211_KEYTYPE_PAIRWISE;
3559 key.type = NL80211_KEYTYPE_GROUP;
3563 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3564 key.type != NL80211_KEYTYPE_GROUP)
3567 if (!rdev->ops->add_key)
3570 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3571 key.type == NL80211_KEYTYPE_PAIRWISE,
3575 wdev_lock(dev->ieee80211_ptr);
3576 err = nl80211_key_allowed(dev->ieee80211_ptr);
3578 err = rdev_add_key(rdev, dev, key.idx,
3579 key.type == NL80211_KEYTYPE_PAIRWISE,
3581 wdev_unlock(dev->ieee80211_ptr);
3586 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3590 struct net_device *dev = info->user_ptr[1];
3591 u8 *mac_addr = NULL;
3592 struct key_parse key;
3594 err = nl80211_parse_key(info, &key);
3598 if (info->attrs[NL80211_ATTR_MAC])
3599 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3601 if (key.type == -1) {
3603 key.type = NL80211_KEYTYPE_PAIRWISE;
3605 key.type = NL80211_KEYTYPE_GROUP;
3609 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3610 key.type != NL80211_KEYTYPE_GROUP)
3613 if (!rdev->ops->del_key)
3616 wdev_lock(dev->ieee80211_ptr);
3617 err = nl80211_key_allowed(dev->ieee80211_ptr);
3619 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3620 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3624 err = rdev_del_key(rdev, dev, key.idx,
3625 key.type == NL80211_KEYTYPE_PAIRWISE,
3628 #ifdef CONFIG_CFG80211_WEXT
3630 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3631 dev->ieee80211_ptr->wext.default_key = -1;
3632 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3633 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3636 wdev_unlock(dev->ieee80211_ptr);
3641 /* This function returns an error or the number of nested attributes */
3642 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3644 struct nlattr *attr;
3645 int n_entries = 0, tmp;
3647 nla_for_each_nested(attr, nl_attr, tmp) {
3648 if (nla_len(attr) != ETH_ALEN)
3658 * This function parses ACL information and allocates memory for ACL data.
3659 * On successful return, the calling function is responsible to free the
3660 * ACL buffer returned by this function.
3662 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3663 struct genl_info *info)
3665 enum nl80211_acl_policy acl_policy;
3666 struct nlattr *attr;
3667 struct cfg80211_acl_data *acl;
3668 int i = 0, n_entries, tmp;
3670 if (!wiphy->max_acl_mac_addrs)
3671 return ERR_PTR(-EOPNOTSUPP);
3673 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3674 return ERR_PTR(-EINVAL);
3676 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3677 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3678 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3679 return ERR_PTR(-EINVAL);
3681 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3682 return ERR_PTR(-EINVAL);
3684 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3686 return ERR_PTR(n_entries);
3688 if (n_entries > wiphy->max_acl_mac_addrs)
3689 return ERR_PTR(-ENOTSUPP);
3691 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3694 return ERR_PTR(-ENOMEM);
3696 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3697 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3701 acl->n_acl_entries = n_entries;
3702 acl->acl_policy = acl_policy;
3707 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3710 struct net_device *dev = info->user_ptr[1];
3711 struct cfg80211_acl_data *acl;
3714 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3715 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3718 if (!dev->ieee80211_ptr->beacon_interval)
3721 acl = parse_acl_data(&rdev->wiphy, info);
3723 return PTR_ERR(acl);
3725 err = rdev_set_mac_acl(rdev, dev, acl);
3732 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3733 u8 *rates, u8 rates_len)
3738 for (i = 0; i < rates_len; i++) {
3739 int rate = (rates[i] & 0x7f) * 5;
3742 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3743 struct ieee80211_rate *srate =
3744 &sband->bitrates[ridx];
3745 if (rate == srate->bitrate) {
3750 if (ridx == sband->n_bitrates)
3751 return 0; /* rate not found */
3757 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3758 u8 *rates, u8 rates_len,
3759 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3763 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3765 for (i = 0; i < rates_len; i++) {
3768 ridx = rates[i] / 8;
3769 rbit = BIT(rates[i] % 8);
3771 /* check validity */
3772 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3775 /* check availability */
3776 ridx = array_index_nospec(ridx, IEEE80211_HT_MCS_MASK_LEN);
3777 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3786 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3790 switch (vht_mcs_map) {
3791 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3793 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3796 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3799 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3809 static void vht_build_mcs_mask(u16 vht_mcs_map,
3810 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3814 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3815 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3820 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3821 struct nl80211_txrate_vht *txrate,
3822 u16 mcs[NL80211_VHT_NSS_MAX])
3824 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3825 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3828 if (!sband->vht_cap.vht_supported)
3831 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3833 /* Build vht_mcs_mask from VHT capabilities */
3834 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3836 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3837 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3838 mcs[i] = txrate->mcs[i];
3846 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3847 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3848 .len = NL80211_MAX_SUPP_RATES },
3849 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3850 .len = NL80211_MAX_SUPP_HT_RATES },
3851 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3852 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3855 static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3856 struct cfg80211_bitrate_mask *mask)
3858 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3861 struct nlattr *tx_rates;
3862 struct ieee80211_supported_band *sband;
3865 memset(mask, 0, sizeof(*mask));
3866 /* Default to all rates enabled */
3867 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3868 sband = rdev->wiphy.bands[i];
3873 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3874 memcpy(mask->control[i].ht_mcs,
3875 sband->ht_cap.mcs.rx_mask,
3876 sizeof(mask->control[i].ht_mcs));
3878 if (!sband->vht_cap.vht_supported)
3881 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3882 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3885 /* if no rates are given set it back to the defaults */
3886 if (!info->attrs[NL80211_ATTR_TX_RATES])
3889 /* The nested attribute uses enum nl80211_band as the index. This maps
3890 * directly to the enum nl80211_band values used in cfg80211.
3892 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3893 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3894 enum nl80211_band band = nla_type(tx_rates);
3897 if (band < 0 || band >= NUM_NL80211_BANDS)
3899 sband = rdev->wiphy.bands[band];
3902 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
3903 nl80211_txattr_policy, info->extack);
3906 if (tb[NL80211_TXRATE_LEGACY]) {
3907 mask->control[band].legacy = rateset_to_mask(
3909 nla_data(tb[NL80211_TXRATE_LEGACY]),
3910 nla_len(tb[NL80211_TXRATE_LEGACY]));
3911 if ((mask->control[band].legacy == 0) &&
3912 nla_len(tb[NL80211_TXRATE_LEGACY]))
3915 if (tb[NL80211_TXRATE_HT]) {
3916 if (!ht_rateset_to_mask(
3918 nla_data(tb[NL80211_TXRATE_HT]),
3919 nla_len(tb[NL80211_TXRATE_HT]),
3920 mask->control[band].ht_mcs))
3923 if (tb[NL80211_TXRATE_VHT]) {
3924 if (!vht_set_mcs_mask(
3926 nla_data(tb[NL80211_TXRATE_VHT]),
3927 mask->control[band].vht_mcs))
3930 if (tb[NL80211_TXRATE_GI]) {
3931 mask->control[band].gi =
3932 nla_get_u8(tb[NL80211_TXRATE_GI]);
3933 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3937 if (mask->control[band].legacy == 0) {
3938 /* don't allow empty legacy rates if HT or VHT
3939 * are not even supported.
3941 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3942 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3945 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3946 if (mask->control[band].ht_mcs[i])
3949 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3950 if (mask->control[band].vht_mcs[i])
3953 /* legacy and mcs rates may not be both empty */
3962 static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3963 enum nl80211_band band,
3964 struct cfg80211_bitrate_mask *beacon_rate)
3966 u32 count_ht, count_vht, i;
3967 u32 rate = beacon_rate->control[band].legacy;
3969 /* Allow only one rate */
3970 if (hweight32(rate) > 1)
3974 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3975 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
3977 } else if (beacon_rate->control[band].ht_mcs[i]) {
3982 if (count_ht && rate)
3987 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3988 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
3990 } else if (beacon_rate->control[band].vht_mcs[i]) {
3995 if (count_vht && rate)
3999 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
4003 !wiphy_ext_feature_isset(&rdev->wiphy,
4004 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
4007 !wiphy_ext_feature_isset(&rdev->wiphy,
4008 NL80211_EXT_FEATURE_BEACON_RATE_HT))
4011 !wiphy_ext_feature_isset(&rdev->wiphy,
4012 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
4018 static int nl80211_parse_beacon(struct cfg80211_registered_device *rdev,
4019 struct nlattr *attrs[],
4020 struct cfg80211_beacon_data *bcn)
4022 bool haveinfo = false;
4025 memset(bcn, 0, sizeof(*bcn));
4027 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
4028 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
4029 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
4035 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
4036 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
4037 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
4044 if (attrs[NL80211_ATTR_IE]) {
4045 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
4046 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
4049 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
4050 bcn->proberesp_ies =
4051 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
4052 bcn->proberesp_ies_len =
4053 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
4056 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
4057 bcn->assocresp_ies =
4058 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
4059 bcn->assocresp_ies_len =
4060 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
4063 if (attrs[NL80211_ATTR_PROBE_RESP]) {
4064 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
4065 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
4068 if (attrs[NL80211_ATTR_FTM_RESPONDER]) {
4069 struct nlattr *tb[NL80211_FTM_RESP_ATTR_MAX + 1];
4071 err = nla_parse_nested(tb, NL80211_FTM_RESP_ATTR_MAX,
4072 attrs[NL80211_ATTR_FTM_RESPONDER],
4077 if (tb[NL80211_FTM_RESP_ATTR_ENABLED] &&
4078 wiphy_ext_feature_isset(&rdev->wiphy,
4079 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER))
4080 bcn->ftm_responder = 1;
4084 if (tb[NL80211_FTM_RESP_ATTR_LCI]) {
4085 bcn->lci = nla_data(tb[NL80211_FTM_RESP_ATTR_LCI]);
4086 bcn->lci_len = nla_len(tb[NL80211_FTM_RESP_ATTR_LCI]);
4089 if (tb[NL80211_FTM_RESP_ATTR_CIVICLOC]) {
4090 bcn->civicloc = nla_data(tb[NL80211_FTM_RESP_ATTR_CIVICLOC]);
4091 bcn->civicloc_len = nla_len(tb[NL80211_FTM_RESP_ATTR_CIVICLOC]);
4094 bcn->ftm_responder = -1;
4100 static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
4108 for (i = 0; i < rates[1]; i++) {
4109 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
4110 params->ht_required = true;
4111 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
4112 params->vht_required = true;
4117 * Since the nl80211 API didn't include, from the beginning, attributes about
4118 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
4119 * benefit of drivers that rebuild IEs in the firmware.
4121 static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
4123 const struct cfg80211_beacon_data *bcn = ¶ms->beacon;
4124 size_t ies_len = bcn->tail_len;
4125 const u8 *ies = bcn->tail;
4129 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
4130 nl80211_check_ap_rate_selectors(params, rates);
4132 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
4133 nl80211_check_ap_rate_selectors(params, rates);
4135 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
4136 if (cap && cap[1] >= sizeof(*params->ht_cap))
4137 params->ht_cap = (void *)(cap + 2);
4138 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
4139 if (cap && cap[1] >= sizeof(*params->vht_cap))
4140 params->vht_cap = (void *)(cap + 2);
4141 cap = cfg80211_find_ext_ie(WLAN_EID_EXT_HE_CAPABILITY, ies, ies_len);
4142 if (cap && cap[1] >= sizeof(*params->he_cap) + 1)
4143 params->he_cap = (void *)(cap + 3);
4146 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
4147 struct cfg80211_ap_settings *params)
4149 struct wireless_dev *wdev;
4152 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
4153 if (wdev->iftype != NL80211_IFTYPE_AP &&
4154 wdev->iftype != NL80211_IFTYPE_P2P_GO)
4157 if (!wdev->preset_chandef.chan)
4160 params->chandef = wdev->preset_chandef;
4168 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
4169 enum nl80211_auth_type auth_type,
4170 enum nl80211_commands cmd)
4172 if (auth_type > NL80211_AUTHTYPE_MAX)
4176 case NL80211_CMD_AUTHENTICATE:
4177 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
4178 auth_type == NL80211_AUTHTYPE_SAE)
4180 if (!wiphy_ext_feature_isset(&rdev->wiphy,
4181 NL80211_EXT_FEATURE_FILS_STA) &&
4182 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
4183 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
4184 auth_type == NL80211_AUTHTYPE_FILS_PK))
4187 case NL80211_CMD_CONNECT:
4188 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
4189 auth_type == NL80211_AUTHTYPE_SAE)
4192 /* FILS with SK PFS or PK not supported yet */
4193 if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
4194 auth_type == NL80211_AUTHTYPE_FILS_PK)
4196 if (!wiphy_ext_feature_isset(
4198 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
4199 auth_type == NL80211_AUTHTYPE_FILS_SK)
4202 case NL80211_CMD_START_AP:
4203 /* SAE not supported yet */
4204 if (auth_type == NL80211_AUTHTYPE_SAE)
4206 /* FILS not supported yet */
4207 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
4208 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
4209 auth_type == NL80211_AUTHTYPE_FILS_PK)
4217 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
4219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4220 struct net_device *dev = info->user_ptr[1];
4221 struct wireless_dev *wdev = dev->ieee80211_ptr;
4222 struct cfg80211_ap_settings params;
4225 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4229 if (!rdev->ops->start_ap)
4232 if (wdev->beacon_interval)
4235 memset(¶ms, 0, sizeof(params));
4237 /* these are required for START_AP */
4238 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
4239 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4240 !info->attrs[NL80211_ATTR_BEACON_HEAD])
4243 err = nl80211_parse_beacon(rdev, info->attrs, ¶ms.beacon);
4247 params.beacon_interval =
4248 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4249 params.dtim_period =
4250 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
4252 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
4253 params.beacon_interval);
4258 * In theory, some of these attributes should be required here
4259 * but since they were not used when the command was originally
4260 * added, keep them optional for old user space programs to let
4261 * them continue to work with drivers that do not need the
4262 * additional information -- drivers must check!
4264 if (info->attrs[NL80211_ATTR_SSID]) {
4265 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4267 nla_len(info->attrs[NL80211_ATTR_SSID]);
4268 if (params.ssid_len == 0 ||
4269 params.ssid_len > IEEE80211_MAX_SSID_LEN)
4273 if (info->attrs[NL80211_ATTR_HIDDEN_SSID])
4274 params.hidden_ssid = nla_get_u32(
4275 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
4277 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4279 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4280 params.auth_type = nla_get_u32(
4281 info->attrs[NL80211_ATTR_AUTH_TYPE]);
4282 if (!nl80211_valid_auth_type(rdev, params.auth_type,
4283 NL80211_CMD_START_AP))
4286 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4288 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
4289 NL80211_MAX_NR_CIPHER_SUITES);
4293 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
4294 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
4296 params.inactivity_timeout = nla_get_u16(
4297 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
4300 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4303 params.p2p_ctwindow =
4304 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4305 if (params.p2p_ctwindow != 0 &&
4306 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4310 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4313 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4315 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4316 params.p2p_opp_ps = tmp;
4317 if (params.p2p_opp_ps != 0 &&
4318 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4322 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4323 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
4326 } else if (wdev->preset_chandef.chan) {
4327 params.chandef = wdev->preset_chandef;
4328 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
4331 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
4335 if (info->attrs[NL80211_ATTR_TX_RATES]) {
4336 err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate);
4340 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
4341 ¶ms.beacon_rate);
4346 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
4348 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
4349 switch (params.smps_mode) {
4350 case NL80211_SMPS_OFF:
4352 case NL80211_SMPS_STATIC:
4353 if (!(rdev->wiphy.features &
4354 NL80211_FEATURE_STATIC_SMPS))
4357 case NL80211_SMPS_DYNAMIC:
4358 if (!(rdev->wiphy.features &
4359 NL80211_FEATURE_DYNAMIC_SMPS))
4366 params.smps_mode = NL80211_SMPS_OFF;
4369 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4370 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4373 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4374 params.acl = parse_acl_data(&rdev->wiphy, info);
4375 if (IS_ERR(params.acl))
4376 return PTR_ERR(params.acl);
4379 nl80211_calculate_ap_params(¶ms);
4382 err = rdev_start_ap(rdev, dev, ¶ms);
4384 wdev->preset_chandef = params.chandef;
4385 wdev->beacon_interval = params.beacon_interval;
4386 wdev->chandef = params.chandef;
4387 wdev->ssid_len = params.ssid_len;
4388 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
4390 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
4391 wdev->conn_owner_nlportid = info->snd_portid;
4400 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4403 struct net_device *dev = info->user_ptr[1];
4404 struct wireless_dev *wdev = dev->ieee80211_ptr;
4405 struct cfg80211_beacon_data params;
4408 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4409 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4412 if (!rdev->ops->change_beacon)
4415 if (!wdev->beacon_interval)
4418 err = nl80211_parse_beacon(rdev, info->attrs, ¶ms);
4423 err = rdev_change_beacon(rdev, dev, ¶ms);
4429 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
4431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4432 struct net_device *dev = info->user_ptr[1];
4434 return cfg80211_stop_ap(rdev, dev, false);
4437 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4438 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4439 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4440 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
4441 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
4442 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
4443 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
4446 static int parse_station_flags(struct genl_info *info,
4447 enum nl80211_iftype iftype,
4448 struct station_parameters *params)
4450 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
4455 * Try parsing the new attribute first so userspace
4456 * can specify both for older kernels.
4458 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4460 struct nl80211_sta_flag_update *sta_flags;
4462 sta_flags = nla_data(nla);
4463 params->sta_flags_mask = sta_flags->mask;
4464 params->sta_flags_set = sta_flags->set;
4465 params->sta_flags_set &= params->sta_flags_mask;
4466 if ((params->sta_flags_mask |
4467 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4472 /* if present, parse the old attribute */
4474 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
4478 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
4479 sta_flags_policy, info->extack))
4483 * Only allow certain flags for interface types so that
4484 * other attributes are silently ignored. Remember that
4485 * this is backward compatibility code with old userspace
4486 * and shouldn't be hit in other cases anyway.
4489 case NL80211_IFTYPE_AP:
4490 case NL80211_IFTYPE_AP_VLAN:
4491 case NL80211_IFTYPE_P2P_GO:
4492 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4493 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4494 BIT(NL80211_STA_FLAG_WME) |
4495 BIT(NL80211_STA_FLAG_MFP);
4497 case NL80211_IFTYPE_P2P_CLIENT:
4498 case NL80211_IFTYPE_STATION:
4499 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4500 BIT(NL80211_STA_FLAG_TDLS_PEER);
4502 case NL80211_IFTYPE_MESH_POINT:
4503 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4504 BIT(NL80211_STA_FLAG_MFP) |
4505 BIT(NL80211_STA_FLAG_AUTHORIZED);
4511 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4513 params->sta_flags_set |= (1<<flag);
4515 /* no longer support new API additions in old API */
4516 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4524 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4527 struct nlattr *rate;
4530 enum nl80211_rate_info rate_flg;
4532 rate = nla_nest_start(msg, attr);
4536 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4537 bitrate = cfg80211_calculate_bitrate(info);
4538 /* report 16-bit bitrate only if we can */
4539 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
4541 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4543 if (bitrate_compat > 0 &&
4544 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4548 case RATE_INFO_BW_5:
4549 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4551 case RATE_INFO_BW_10:
4552 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4557 case RATE_INFO_BW_20:
4560 case RATE_INFO_BW_40:
4561 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4563 case RATE_INFO_BW_80:
4564 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4566 case RATE_INFO_BW_160:
4567 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4569 case RATE_INFO_BW_HE_RU:
4571 WARN_ON(!(info->flags & RATE_INFO_FLAGS_HE_MCS));
4574 if (rate_flg && nla_put_flag(msg, rate_flg))
4577 if (info->flags & RATE_INFO_FLAGS_MCS) {
4578 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4580 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4581 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4583 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4584 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4586 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4588 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4589 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4591 } else if (info->flags & RATE_INFO_FLAGS_HE_MCS) {
4592 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_MCS, info->mcs))
4594 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_NSS, info->nss))
4596 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_GI, info->he_gi))
4598 if (nla_put_u8(msg, NL80211_RATE_INFO_HE_DCM, info->he_dcm))
4600 if (info->bw == RATE_INFO_BW_HE_RU &&
4601 nla_put_u8(msg, NL80211_RATE_INFO_HE_RU_ALLOC,
4606 nla_nest_end(msg, rate);
4610 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4619 attr = nla_nest_start(msg, id);
4623 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4624 if (!(mask & BIT(i)))
4627 if (nla_put_u8(msg, i, signal[i]))
4631 nla_nest_end(msg, attr);
4636 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4638 struct cfg80211_registered_device *rdev,
4639 struct net_device *dev,
4640 const u8 *mac_addr, struct station_info *sinfo)
4643 struct nlattr *sinfoattr, *bss_param;
4645 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
4649 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4650 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4651 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4652 goto nla_put_failure;
4654 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4656 goto nla_put_failure;
4658 #define PUT_SINFO(attr, memb, type) do { \
4659 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
4660 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_ ## attr) && \
4661 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4663 goto nla_put_failure; \
4665 #define PUT_SINFO_U64(attr, memb) do { \
4666 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_ ## attr) && \
4667 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4668 sinfo->memb, NL80211_STA_INFO_PAD)) \
4669 goto nla_put_failure; \
4672 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4673 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4675 if (sinfo->filled & (BIT_ULL(NL80211_STA_INFO_RX_BYTES) |
4676 BIT_ULL(NL80211_STA_INFO_RX_BYTES64)) &&
4677 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
4678 (u32)sinfo->rx_bytes))
4679 goto nla_put_failure;
4681 if (sinfo->filled & (BIT_ULL(NL80211_STA_INFO_TX_BYTES) |
4682 BIT_ULL(NL80211_STA_INFO_TX_BYTES64)) &&
4683 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
4684 (u32)sinfo->tx_bytes))
4685 goto nla_put_failure;
4687 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4688 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
4689 PUT_SINFO(LLID, llid, u16);
4690 PUT_SINFO(PLID, plid, u16);
4691 PUT_SINFO(PLINK_STATE, plink_state, u8);
4692 PUT_SINFO_U64(RX_DURATION, rx_duration);
4694 switch (rdev->wiphy.signal_type) {
4695 case CFG80211_SIGNAL_TYPE_MBM:
4696 PUT_SINFO(SIGNAL, signal, u8);
4697 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
4702 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL)) {
4703 if (!nl80211_put_signal(msg, sinfo->chains,
4704 sinfo->chain_signal,
4705 NL80211_STA_INFO_CHAIN_SIGNAL))
4706 goto nla_put_failure;
4708 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
4709 if (!nl80211_put_signal(msg, sinfo->chains,
4710 sinfo->chain_signal_avg,
4711 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4712 goto nla_put_failure;
4714 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_TX_BITRATE)) {
4715 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4716 NL80211_STA_INFO_TX_BITRATE))
4717 goto nla_put_failure;
4719 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_RX_BITRATE)) {
4720 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4721 NL80211_STA_INFO_RX_BITRATE))
4722 goto nla_put_failure;
4725 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4726 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4727 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4728 PUT_SINFO(TX_FAILED, tx_failed, u32);
4729 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4730 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4731 PUT_SINFO(LOCAL_PM, local_pm, u32);
4732 PUT_SINFO(PEER_PM, peer_pm, u32);
4733 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4735 if (sinfo->filled & BIT_ULL(NL80211_STA_INFO_BSS_PARAM)) {
4736 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4738 goto nla_put_failure;
4740 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4741 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4742 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4743 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4744 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4745 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4746 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4747 sinfo->bss_param.dtim_period) ||
4748 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4749 sinfo->bss_param.beacon_interval))
4750 goto nla_put_failure;
4752 nla_nest_end(msg, bss_param);
4754 if ((sinfo->filled & BIT_ULL(NL80211_STA_INFO_STA_FLAGS)) &&
4755 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4756 sizeof(struct nl80211_sta_flag_update),
4758 goto nla_put_failure;
4760 PUT_SINFO_U64(T_OFFSET, t_offset);
4761 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4762 PUT_SINFO_U64(BEACON_RX, rx_beacon);
4763 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
4764 PUT_SINFO(RX_MPDUS, rx_mpdu_count, u32);
4765 PUT_SINFO(FCS_ERROR_COUNT, fcs_err_count, u32);
4766 if (wiphy_ext_feature_isset(&rdev->wiphy,
4767 NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT)) {
4768 PUT_SINFO(ACK_SIGNAL, ack_signal, u8);
4769 PUT_SINFO(ACK_SIGNAL_AVG, avg_ack_signal, s8);
4773 #undef PUT_SINFO_U64
4775 if (sinfo->pertid) {
4776 struct nlattr *tidsattr;
4779 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4781 goto nla_put_failure;
4783 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4784 struct cfg80211_tid_stats *tidstats;
4785 struct nlattr *tidattr;
4787 tidstats = &sinfo->pertid[tid];
4789 if (!tidstats->filled)
4792 tidattr = nla_nest_start(msg, tid + 1);
4794 goto nla_put_failure;
4796 #define PUT_TIDVAL_U64(attr, memb) do { \
4797 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
4798 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4799 tidstats->memb, NL80211_TID_STATS_PAD)) \
4800 goto nla_put_failure; \
4803 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4804 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4805 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4806 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
4808 #undef PUT_TIDVAL_U64
4809 if ((tidstats->filled &
4810 BIT(NL80211_TID_STATS_TXQ_STATS)) &&
4811 !nl80211_put_txq_stats(msg, &tidstats->txq_stats,
4812 NL80211_TID_STATS_TXQ_STATS))
4813 goto nla_put_failure;
4815 nla_nest_end(msg, tidattr);
4818 nla_nest_end(msg, tidsattr);
4821 nla_nest_end(msg, sinfoattr);
4823 if (sinfo->assoc_req_ies_len &&
4824 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4825 sinfo->assoc_req_ies))
4826 goto nla_put_failure;
4828 cfg80211_sinfo_release_content(sinfo);
4829 genlmsg_end(msg, hdr);
4833 cfg80211_sinfo_release_content(sinfo);
4834 genlmsg_cancel(msg, hdr);
4838 static int nl80211_dump_station(struct sk_buff *skb,
4839 struct netlink_callback *cb)
4841 struct station_info sinfo;
4842 struct cfg80211_registered_device *rdev;
4843 struct wireless_dev *wdev;
4844 u8 mac_addr[ETH_ALEN];
4845 int sta_idx = cb->args[2];
4849 err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev);
4853 if (!wdev->netdev) {
4858 if (!rdev->ops->dump_station) {
4864 memset(&sinfo, 0, sizeof(sinfo));
4865 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
4872 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
4873 NETLINK_CB(cb->skb).portid,
4874 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4875 rdev, wdev->netdev, mac_addr,
4883 cb->args[2] = sta_idx;
4891 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4894 struct net_device *dev = info->user_ptr[1];
4895 struct station_info sinfo;
4896 struct sk_buff *msg;
4897 u8 *mac_addr = NULL;
4900 memset(&sinfo, 0, sizeof(sinfo));
4902 if (!info->attrs[NL80211_ATTR_MAC])
4905 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4907 if (!rdev->ops->get_station)
4910 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
4914 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4916 cfg80211_sinfo_release_content(&sinfo);
4920 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4921 info->snd_portid, info->snd_seq, 0,
4922 rdev, dev, mac_addr, &sinfo) < 0) {
4927 return genlmsg_reply(msg, info);
4930 int cfg80211_check_station_change(struct wiphy *wiphy,
4931 struct station_parameters *params,
4932 enum cfg80211_station_type statype)
4934 if (params->listen_interval != -1 &&
4935 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4938 if (params->support_p2p_ps != -1 &&
4939 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4943 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4944 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4947 /* When you run into this, adjust the code below for the new flag */
4948 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4951 case CFG80211_STA_MESH_PEER_KERNEL:
4952 case CFG80211_STA_MESH_PEER_USER:
4954 * No ignoring the TDLS flag here -- the userspace mesh
4955 * code doesn't have the bug of including TDLS in the
4958 if (params->sta_flags_mask &
4959 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4960 BIT(NL80211_STA_FLAG_MFP) |
4961 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4964 case CFG80211_STA_TDLS_PEER_SETUP:
4965 case CFG80211_STA_TDLS_PEER_ACTIVE:
4966 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4968 /* ignore since it can't change */
4969 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4972 /* disallow mesh-specific things */
4973 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4975 if (params->local_pm)
4977 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4981 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4982 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4983 /* TDLS can't be set, ... */
4984 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4987 * ... but don't bother the driver with it. This works around
4988 * a hostapd/wpa_supplicant issue -- it always includes the
4989 * TLDS_PEER flag in the mask even for AP mode.
4991 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4994 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4995 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4996 /* reject other things that can't change */
4997 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4999 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
5001 if (params->supported_rates)
5003 if (params->ext_capab || params->ht_capa || params->vht_capa ||
5008 if (statype != CFG80211_STA_AP_CLIENT &&
5009 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
5015 case CFG80211_STA_AP_MLME_CLIENT:
5016 /* Use this only for authorizing/unauthorizing a station */
5017 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
5020 case CFG80211_STA_AP_CLIENT:
5021 case CFG80211_STA_AP_CLIENT_UNASSOC:
5022 /* accept only the listed bits */
5023 if (params->sta_flags_mask &
5024 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
5025 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5026 BIT(NL80211_STA_FLAG_ASSOCIATED) |
5027 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
5028 BIT(NL80211_STA_FLAG_WME) |
5029 BIT(NL80211_STA_FLAG_MFP)))
5032 /* but authenticated/associated only if driver handles it */
5033 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
5034 params->sta_flags_mask &
5035 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5036 BIT(NL80211_STA_FLAG_ASSOCIATED)))
5039 case CFG80211_STA_IBSS:
5040 case CFG80211_STA_AP_STA:
5041 /* reject any changes other than AUTHORIZED */
5042 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
5045 case CFG80211_STA_TDLS_PEER_SETUP:
5046 /* reject any changes other than AUTHORIZED or WME */
5047 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
5048 BIT(NL80211_STA_FLAG_WME)))
5050 /* force (at least) rates when authorizing */
5051 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
5052 !params->supported_rates)
5055 case CFG80211_STA_TDLS_PEER_ACTIVE:
5056 /* reject any changes */
5058 case CFG80211_STA_MESH_PEER_KERNEL:
5059 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
5062 case CFG80211_STA_MESH_PEER_USER:
5063 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
5064 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
5070 * Older kernel versions ignored this attribute entirely, so don't
5071 * reject attempts to update it but mark it as unused instead so the
5072 * driver won't look at the data.
5074 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
5075 statype != CFG80211_STA_TDLS_PEER_SETUP)
5076 params->opmode_notif_used = false;
5080 EXPORT_SYMBOL(cfg80211_check_station_change);
5083 * Get vlan interface making sure it is running and on the right wiphy.
5085 static struct net_device *get_vlan(struct genl_info *info,
5086 struct cfg80211_registered_device *rdev)
5088 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5089 struct net_device *v;
5095 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
5097 return ERR_PTR(-ENODEV);
5099 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
5104 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5105 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5106 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
5111 if (!netif_running(v)) {
5119 return ERR_PTR(ret);
5122 static const struct nla_policy
5123 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
5124 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
5125 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
5128 static int nl80211_parse_sta_wme(struct genl_info *info,
5129 struct station_parameters *params)
5131 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
5135 /* parse WME attributes if present */
5136 if (!info->attrs[NL80211_ATTR_STA_WME])
5139 nla = info->attrs[NL80211_ATTR_STA_WME];
5140 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
5141 nl80211_sta_wme_policy, info->extack);
5145 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
5146 params->uapsd_queues = nla_get_u8(
5147 tb[NL80211_STA_WME_UAPSD_QUEUES]);
5148 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
5151 if (tb[NL80211_STA_WME_MAX_SP])
5152 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
5154 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
5157 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
5162 static int nl80211_parse_sta_channel_info(struct genl_info *info,
5163 struct station_parameters *params)
5165 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
5166 params->supported_channels =
5167 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
5168 params->supported_channels_len =
5169 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
5171 * Need to include at least one (first channel, number of
5172 * channels) tuple for each subband, and must have proper
5173 * tuples for the rest of the data as well.
5175 if (params->supported_channels_len < 2)
5177 if (params->supported_channels_len % 2)
5181 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
5182 params->supported_oper_classes =
5183 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
5184 params->supported_oper_classes_len =
5185 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
5187 * The value of the Length field of the Supported Operating
5188 * Classes element is between 2 and 253.
5190 if (params->supported_oper_classes_len < 2 ||
5191 params->supported_oper_classes_len > 253)
5197 static int nl80211_set_station_tdls(struct genl_info *info,
5198 struct station_parameters *params)
5201 /* Dummy STA entry gets updated once the peer capabilities are known */
5202 if (info->attrs[NL80211_ATTR_PEER_AID])
5203 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
5204 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5206 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5207 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5209 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5210 if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) {
5212 nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
5213 params->he_capa_len =
5214 nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
5216 if (params->he_capa_len < NL80211_HE_MIN_CAPABILITY_LEN)
5220 err = nl80211_parse_sta_channel_info(info, params);
5224 return nl80211_parse_sta_wme(info, params);
5227 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
5229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5230 struct net_device *dev = info->user_ptr[1];
5231 struct station_parameters params;
5235 memset(¶ms, 0, sizeof(params));
5237 if (!rdev->ops->change_station)
5241 * AID and listen_interval properties can be set only for unassociated
5242 * station. Include these parameters here and will check them in
5243 * cfg80211_check_station_change().
5245 if (info->attrs[NL80211_ATTR_STA_AID])
5246 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
5248 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5249 params.listen_interval =
5250 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
5252 params.listen_interval = -1;
5254 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS])
5255 params.support_p2p_ps =
5256 nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5258 params.support_p2p_ps = -1;
5260 if (!info->attrs[NL80211_ATTR_MAC])
5263 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5265 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
5266 params.supported_rates =
5267 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5268 params.supported_rates_len =
5269 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5272 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5274 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5275 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5278 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5280 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5281 params.ext_capab_len =
5282 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5285 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5288 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
5289 params.plink_action =
5290 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5292 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
5293 params.plink_state =
5294 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
5295 if (info->attrs[NL80211_ATTR_MESH_PEER_AID])
5296 params.peer_aid = nla_get_u16(
5297 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
5298 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
5301 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE])
5302 params.local_pm = nla_get_u32(
5303 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
5305 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5306 params.opmode_notif_used = true;
5307 params.opmode_notif =
5308 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5311 /* Include parameters for TDLS peer (will check later) */
5312 err = nl80211_set_station_tdls(info, ¶ms);
5316 params.vlan = get_vlan(info, rdev);
5317 if (IS_ERR(params.vlan))
5318 return PTR_ERR(params.vlan);
5320 switch (dev->ieee80211_ptr->iftype) {
5321 case NL80211_IFTYPE_AP:
5322 case NL80211_IFTYPE_AP_VLAN:
5323 case NL80211_IFTYPE_P2P_GO:
5324 case NL80211_IFTYPE_P2P_CLIENT:
5325 case NL80211_IFTYPE_STATION:
5326 case NL80211_IFTYPE_ADHOC:
5327 case NL80211_IFTYPE_MESH_POINT:
5334 /* driver will call cfg80211_check_station_change() */
5335 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
5339 dev_put(params.vlan);
5344 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
5346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5348 struct net_device *dev = info->user_ptr[1];
5349 struct station_parameters params;
5350 u8 *mac_addr = NULL;
5351 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5352 BIT(NL80211_STA_FLAG_ASSOCIATED);
5354 memset(¶ms, 0, sizeof(params));
5356 if (!rdev->ops->add_station)
5359 if (!info->attrs[NL80211_ATTR_MAC])
5362 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5365 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
5368 if (!info->attrs[NL80211_ATTR_STA_AID] &&
5369 !info->attrs[NL80211_ATTR_PEER_AID])
5372 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5373 params.supported_rates =
5374 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5375 params.supported_rates_len =
5376 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5377 params.listen_interval =
5378 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
5380 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5381 params.support_p2p_ps =
5382 nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5385 * if not specified, assume it's supported for P2P GO interface,
5386 * and is NOT supported for AP interface
5388 params.support_p2p_ps =
5389 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5392 if (info->attrs[NL80211_ATTR_PEER_AID])
5393 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
5395 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
5397 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5399 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5400 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5403 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5405 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5406 params.ext_capab_len =
5407 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5410 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5412 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5414 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5416 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5418 if (info->attrs[NL80211_ATTR_HE_CAPABILITY]) {
5420 nla_data(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
5421 params.he_capa_len =
5422 nla_len(info->attrs[NL80211_ATTR_HE_CAPABILITY]);
5424 /* max len is validated in nla policy */
5425 if (params.he_capa_len < NL80211_HE_MIN_CAPABILITY_LEN)
5429 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5430 params.opmode_notif_used = true;
5431 params.opmode_notif =
5432 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5435 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
5436 params.plink_action =
5437 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5439 err = nl80211_parse_sta_channel_info(info, ¶ms);
5443 err = nl80211_parse_sta_wme(info, ¶ms);
5447 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5450 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5451 * as userspace might just pass through the capabilities from the IEs
5452 * directly, rather than enforcing this restriction and returning an
5453 * error in this case.
5455 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5456 params.ht_capa = NULL;
5457 params.vht_capa = NULL;
5459 /* HE requires WME */
5460 if (params.he_capa_len)
5464 /* When you run into this, adjust the code below for the new flag */
5465 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5467 switch (dev->ieee80211_ptr->iftype) {
5468 case NL80211_IFTYPE_AP:
5469 case NL80211_IFTYPE_AP_VLAN:
5470 case NL80211_IFTYPE_P2P_GO:
5471 /* ignore WME attributes if iface/sta is not capable */
5472 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5473 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5474 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5476 /* TDLS peers cannot be added */
5477 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5478 info->attrs[NL80211_ATTR_PEER_AID])
5480 /* but don't bother the driver with it */
5481 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
5483 /* allow authenticated/associated only if driver handles it */
5484 if (!(rdev->wiphy.features &
5485 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
5486 params.sta_flags_mask & auth_assoc)
5489 /* Older userspace, or userspace wanting to be compatible with
5490 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5491 * and assoc flags in the mask, but assumes the station will be
5492 * added as associated anyway since this was the required driver
5493 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5495 * In order to not bother drivers with this quirk in the API
5496 * set the flags in both the mask and set for new stations in
5499 if (!(params.sta_flags_mask & auth_assoc)) {
5500 params.sta_flags_mask |= auth_assoc;
5501 params.sta_flags_set |= auth_assoc;
5504 /* must be last in here for error handling */
5505 params.vlan = get_vlan(info, rdev);
5506 if (IS_ERR(params.vlan))
5507 return PTR_ERR(params.vlan);
5509 case NL80211_IFTYPE_MESH_POINT:
5510 /* ignore uAPSD data */
5511 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5513 /* associated is disallowed */
5514 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5516 /* TDLS peers cannot be added */
5517 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5518 info->attrs[NL80211_ATTR_PEER_AID])
5521 case NL80211_IFTYPE_STATION:
5522 case NL80211_IFTYPE_P2P_CLIENT:
5523 /* ignore uAPSD data */
5524 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5526 /* these are disallowed */
5527 if (params.sta_flags_mask &
5528 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5529 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
5531 /* Only TDLS peers can be added */
5532 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5534 /* Can only add if TDLS ... */
5535 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5537 /* ... with external setup is supported */
5538 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5541 * Older wpa_supplicant versions always mark the TDLS peer
5542 * as authorized, but it shouldn't yet be.
5544 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
5550 /* be aware of params.vlan when changing code here */
5552 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
5555 dev_put(params.vlan);
5559 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5562 struct net_device *dev = info->user_ptr[1];
5563 struct station_del_parameters params;
5565 memset(¶ms, 0, sizeof(params));
5567 if (info->attrs[NL80211_ATTR_MAC])
5568 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5570 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5571 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5572 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5573 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5576 if (!rdev->ops->del_station)
5579 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5581 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5582 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5583 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5586 /* Default to Deauthentication frame */
5587 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5590 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5591 params.reason_code =
5592 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5593 if (params.reason_code == 0)
5594 return -EINVAL; /* 0 is reserved */
5596 /* Default to reason code 2 */
5597 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5600 return rdev_del_station(rdev, dev, ¶ms);
5603 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
5604 int flags, struct net_device *dev,
5605 u8 *dst, u8 *next_hop,
5606 struct mpath_info *pinfo)
5609 struct nlattr *pinfoattr;
5611 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
5615 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5616 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5617 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5618 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5619 goto nla_put_failure;
5621 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5623 goto nla_put_failure;
5624 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5625 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5627 goto nla_put_failure;
5628 if (((pinfo->filled & MPATH_INFO_SN) &&
5629 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5630 ((pinfo->filled & MPATH_INFO_METRIC) &&
5631 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5633 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5634 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5636 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5637 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5639 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5640 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5641 pinfo->discovery_timeout)) ||
5642 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5643 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5644 pinfo->discovery_retries)))
5645 goto nla_put_failure;
5647 nla_nest_end(msg, pinfoattr);
5649 genlmsg_end(msg, hdr);
5653 genlmsg_cancel(msg, hdr);
5657 static int nl80211_dump_mpath(struct sk_buff *skb,
5658 struct netlink_callback *cb)
5660 struct mpath_info pinfo;
5661 struct cfg80211_registered_device *rdev;
5662 struct wireless_dev *wdev;
5664 u8 next_hop[ETH_ALEN];
5665 int path_idx = cb->args[2];
5669 err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev);
5673 if (!rdev->ops->dump_mpath) {
5678 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5684 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
5691 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5692 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5693 wdev->netdev, dst, next_hop,
5701 cb->args[2] = path_idx;
5708 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5710 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5712 struct net_device *dev = info->user_ptr[1];
5713 struct mpath_info pinfo;
5714 struct sk_buff *msg;
5716 u8 next_hop[ETH_ALEN];
5718 memset(&pinfo, 0, sizeof(pinfo));
5720 if (!info->attrs[NL80211_ATTR_MAC])
5723 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5725 if (!rdev->ops->get_mpath)
5728 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5731 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
5735 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5739 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5740 dev, dst, next_hop, &pinfo) < 0) {
5745 return genlmsg_reply(msg, info);
5748 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5751 struct net_device *dev = info->user_ptr[1];
5753 u8 *next_hop = NULL;
5755 if (!info->attrs[NL80211_ATTR_MAC])
5758 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5761 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5762 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5764 if (!rdev->ops->change_mpath)
5767 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5770 return rdev_change_mpath(rdev, dev, dst, next_hop);
5773 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5775 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5776 struct net_device *dev = info->user_ptr[1];
5778 u8 *next_hop = NULL;
5780 if (!info->attrs[NL80211_ATTR_MAC])
5783 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5786 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5787 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5789 if (!rdev->ops->add_mpath)
5792 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5795 return rdev_add_mpath(rdev, dev, dst, next_hop);
5798 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5801 struct net_device *dev = info->user_ptr[1];
5804 if (info->attrs[NL80211_ATTR_MAC])
5805 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5807 if (!rdev->ops->del_mpath)
5810 return rdev_del_mpath(rdev, dev, dst);
5813 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5817 struct net_device *dev = info->user_ptr[1];
5818 struct mpath_info pinfo;
5819 struct sk_buff *msg;
5823 memset(&pinfo, 0, sizeof(pinfo));
5825 if (!info->attrs[NL80211_ATTR_MAC])
5828 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5830 if (!rdev->ops->get_mpp)
5833 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5836 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5840 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5844 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5845 dev, dst, mpp, &pinfo) < 0) {
5850 return genlmsg_reply(msg, info);
5853 static int nl80211_dump_mpp(struct sk_buff *skb,
5854 struct netlink_callback *cb)
5856 struct mpath_info pinfo;
5857 struct cfg80211_registered_device *rdev;
5858 struct wireless_dev *wdev;
5861 int path_idx = cb->args[2];
5865 err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev);
5869 if (!rdev->ops->dump_mpp) {
5874 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5880 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5887 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5888 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5889 wdev->netdev, dst, mpp,
5897 cb->args[2] = path_idx;
5904 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5907 struct net_device *dev = info->user_ptr[1];
5908 struct wireless_dev *wdev = dev->ieee80211_ptr;
5909 struct bss_parameters params;
5912 memset(¶ms, 0, sizeof(params));
5913 /* default to not changing parameters */
5914 params.use_cts_prot = -1;
5915 params.use_short_preamble = -1;
5916 params.use_short_slot_time = -1;
5917 params.ap_isolate = -1;
5918 params.ht_opmode = -1;
5919 params.p2p_ctwindow = -1;
5920 params.p2p_opp_ps = -1;
5922 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5923 params.use_cts_prot =
5924 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5925 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5926 params.use_short_preamble =
5927 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5928 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5929 params.use_short_slot_time =
5930 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
5931 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5932 params.basic_rates =
5933 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5934 params.basic_rates_len =
5935 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5937 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5938 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
5939 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5941 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
5943 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5944 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5946 params.p2p_ctwindow =
5947 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5948 if (params.p2p_ctwindow != 0 &&
5949 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5953 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5956 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5958 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5959 params.p2p_opp_ps = tmp;
5960 if (params.p2p_opp_ps &&
5961 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5965 if (!rdev->ops->change_bss)
5968 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5969 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5973 err = rdev_change_bss(rdev, dev, ¶ms);
5979 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5983 enum nl80211_user_reg_hint_type user_reg_hint_type;
5987 * You should only get this when cfg80211 hasn't yet initialized
5988 * completely when built-in to the kernel right between the time
5989 * window between nl80211_init() and regulatory_init(), if that is
5992 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5993 return -EINPROGRESS;
5995 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5996 user_reg_hint_type =
5997 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5999 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
6001 switch (user_reg_hint_type) {
6002 case NL80211_USER_REG_HINT_USER:
6003 case NL80211_USER_REG_HINT_CELL_BASE:
6004 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6007 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6008 return regulatory_hint_user(data, user_reg_hint_type);
6009 case NL80211_USER_REG_HINT_INDOOR:
6010 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
6011 owner_nlportid = info->snd_portid;
6012 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
6018 return regulatory_hint_indoor(is_indoor, owner_nlportid);
6024 static int nl80211_reload_regdb(struct sk_buff *skb, struct genl_info *info)
6026 return reg_reload_regdb();
6029 static int nl80211_get_mesh_config(struct sk_buff *skb,
6030 struct genl_info *info)
6032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6033 struct net_device *dev = info->user_ptr[1];
6034 struct wireless_dev *wdev = dev->ieee80211_ptr;
6035 struct mesh_config cur_params;
6038 struct nlattr *pinfoattr;
6039 struct sk_buff *msg;
6041 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6044 if (!rdev->ops->get_mesh_config)
6048 /* If not connected, get default parameters */
6049 if (!wdev->mesh_id_len)
6050 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
6052 err = rdev_get_mesh_config(rdev, dev, &cur_params);
6058 /* Draw up a netlink message to send back */
6059 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6062 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6063 NL80211_CMD_GET_MESH_CONFIG);
6066 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
6068 goto nla_put_failure;
6069 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
6070 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
6071 cur_params.dot11MeshRetryTimeout) ||
6072 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
6073 cur_params.dot11MeshConfirmTimeout) ||
6074 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
6075 cur_params.dot11MeshHoldingTimeout) ||
6076 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
6077 cur_params.dot11MeshMaxPeerLinks) ||
6078 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
6079 cur_params.dot11MeshMaxRetries) ||
6080 nla_put_u8(msg, NL80211_MESHCONF_TTL,
6081 cur_params.dot11MeshTTL) ||
6082 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
6083 cur_params.element_ttl) ||
6084 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
6085 cur_params.auto_open_plinks) ||
6086 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
6087 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
6088 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
6089 cur_params.dot11MeshHWMPmaxPREQretries) ||
6090 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
6091 cur_params.path_refresh_time) ||
6092 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
6093 cur_params.min_discovery_timeout) ||
6094 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
6095 cur_params.dot11MeshHWMPactivePathTimeout) ||
6096 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
6097 cur_params.dot11MeshHWMPpreqMinInterval) ||
6098 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
6099 cur_params.dot11MeshHWMPperrMinInterval) ||
6100 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
6101 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
6102 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
6103 cur_params.dot11MeshHWMPRootMode) ||
6104 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
6105 cur_params.dot11MeshHWMPRannInterval) ||
6106 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
6107 cur_params.dot11MeshGateAnnouncementProtocol) ||
6108 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
6109 cur_params.dot11MeshForwarding) ||
6110 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
6111 cur_params.rssi_threshold) ||
6112 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
6113 cur_params.ht_opmode) ||
6114 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
6115 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
6116 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
6117 cur_params.dot11MeshHWMProotInterval) ||
6118 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
6119 cur_params.dot11MeshHWMPconfirmationInterval) ||
6120 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
6121 cur_params.power_mode) ||
6122 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
6123 cur_params.dot11MeshAwakeWindowDuration) ||
6124 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
6125 cur_params.plink_timeout))
6126 goto nla_put_failure;
6127 nla_nest_end(msg, pinfoattr);
6128 genlmsg_end(msg, hdr);
6129 return genlmsg_reply(msg, info);
6137 static const struct nla_policy
6138 nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
6139 [NL80211_MESHCONF_RETRY_TIMEOUT] =
6140 NLA_POLICY_RANGE(NLA_U16, 1, 255),
6141 [NL80211_MESHCONF_CONFIRM_TIMEOUT] =
6142 NLA_POLICY_RANGE(NLA_U16, 1, 255),
6143 [NL80211_MESHCONF_HOLDING_TIMEOUT] =
6144 NLA_POLICY_RANGE(NLA_U16, 1, 255),
6145 [NL80211_MESHCONF_MAX_PEER_LINKS] =
6146 NLA_POLICY_RANGE(NLA_U16, 0, 255),
6147 [NL80211_MESHCONF_MAX_RETRIES] = NLA_POLICY_MAX(NLA_U8, 16),
6148 [NL80211_MESHCONF_TTL] = NLA_POLICY_MIN(NLA_U8, 1),
6149 [NL80211_MESHCONF_ELEMENT_TTL] = NLA_POLICY_MIN(NLA_U8, 1),
6150 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = NLA_POLICY_MAX(NLA_U8, 1),
6151 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] =
6152 NLA_POLICY_RANGE(NLA_U32, 1, 255),
6153 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
6154 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
6155 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = NLA_POLICY_MIN(NLA_U16, 1),
6156 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
6157 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] =
6158 NLA_POLICY_MIN(NLA_U16, 1),
6159 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] =
6160 NLA_POLICY_MIN(NLA_U16, 1),
6161 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] =
6162 NLA_POLICY_MIN(NLA_U16, 1),
6163 [NL80211_MESHCONF_HWMP_ROOTMODE] = NLA_POLICY_MAX(NLA_U8, 4),
6164 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] =
6165 NLA_POLICY_MIN(NLA_U16, 1),
6166 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = NLA_POLICY_MAX(NLA_U8, 1),
6167 [NL80211_MESHCONF_FORWARDING] = NLA_POLICY_MAX(NLA_U8, 1),
6168 [NL80211_MESHCONF_RSSI_THRESHOLD] =
6169 NLA_POLICY_RANGE(NLA_S32, -255, 0),
6170 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
6171 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
6172 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] =
6173 NLA_POLICY_MIN(NLA_U16, 1),
6174 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] =
6175 NLA_POLICY_MIN(NLA_U16, 1),
6176 [NL80211_MESHCONF_POWER_MODE] =
6177 NLA_POLICY_RANGE(NLA_U32,
6178 NL80211_MESH_POWER_ACTIVE,
6179 NL80211_MESH_POWER_MAX),
6180 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
6181 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
6184 static const struct nla_policy
6185 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
6186 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
6187 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
6188 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
6189 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6190 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
6191 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
6192 [NL80211_MESH_SETUP_IE] =
6193 NLA_POLICY_VALIDATE_FN(NLA_BINARY, validate_ie_attr,
6194 IEEE80211_MAX_DATA_LEN),
6195 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
6198 static int nl80211_parse_mesh_config(struct genl_info *info,
6199 struct mesh_config *cfg,
6202 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
6206 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, mask, attr, fn) \
6209 cfg->param = fn(tb[attr]); \
6210 mask |= BIT((attr) - 1); \
6214 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
6216 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
6217 info->attrs[NL80211_ATTR_MESH_CONFIG],
6218 nl80211_meshconf_params_policy, info->extack))
6221 /* This makes sure that there aren't more than 32 mesh config
6222 * parameters (otherwise our bitfield scheme would not work.) */
6223 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
6225 /* Fill in the params struct */
6226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, mask,
6227 NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
6228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, mask,
6229 NL80211_MESHCONF_CONFIRM_TIMEOUT,
6231 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, mask,
6232 NL80211_MESHCONF_HOLDING_TIMEOUT,
6234 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, mask,
6235 NL80211_MESHCONF_MAX_PEER_LINKS,
6237 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, mask,
6238 NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
6239 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, mask,
6240 NL80211_MESHCONF_TTL, nla_get_u8);
6241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, mask,
6242 NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
6243 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, mask,
6244 NL80211_MESHCONF_AUTO_OPEN_PLINKS,
6246 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
6248 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
6250 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, mask,
6251 NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
6253 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, mask,
6254 NL80211_MESHCONF_PATH_REFRESH_TIME,
6256 if (mask & BIT(NL80211_MESHCONF_PATH_REFRESH_TIME) &&
6257 (cfg->path_refresh_time < 1 || cfg->path_refresh_time > 65535))
6259 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, mask,
6260 NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
6262 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
6264 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
6266 if (mask & BIT(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT) &&
6267 (cfg->dot11MeshHWMPactivePathTimeout < 1 ||
6268 cfg->dot11MeshHWMPactivePathTimeout > 65535))
6270 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, mask,
6271 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
6273 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, mask,
6274 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
6276 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6277 dot11MeshHWMPnetDiameterTraversalTime, mask,
6278 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
6280 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
6281 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
6282 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
6283 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
6285 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshGateAnnouncementProtocol,
6286 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
6288 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, mask,
6289 NL80211_MESHCONF_FORWARDING, nla_get_u8);
6290 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, mask,
6291 NL80211_MESHCONF_RSSI_THRESHOLD,
6294 * Check HT operation mode based on
6295 * IEEE 802.11-2016 9.4.2.57 HT Operation element.
6297 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
6298 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
6300 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
6301 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
6302 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6305 /* NON_HT_STA bit is reserved, but some programs set it */
6306 ht_opmode &= ~IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT;
6308 cfg->ht_opmode = ht_opmode;
6309 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
6311 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6312 dot11MeshHWMPactivePathToRootTimeout, mask,
6313 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
6315 if (mask & BIT(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT) &&
6316 (cfg->dot11MeshHWMPactivePathToRootTimeout < 1 ||
6317 cfg->dot11MeshHWMPactivePathToRootTimeout > 65535))
6319 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, mask,
6320 NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
6322 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPconfirmationInterval,
6324 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
6326 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode, mask,
6327 NL80211_MESHCONF_POWER_MODE, nla_get_u32);
6328 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration, mask,
6329 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
6330 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, mask,
6331 NL80211_MESHCONF_PLINK_TIMEOUT, nla_get_u32);
6337 #undef FILL_IN_MESH_PARAM_IF_SET
6340 static int nl80211_parse_mesh_setup(struct genl_info *info,
6341 struct mesh_setup *setup)
6343 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6344 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6346 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6348 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6349 info->attrs[NL80211_ATTR_MESH_SETUP],
6350 nl80211_mesh_setup_params_policy, info->extack))
6353 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6354 setup->sync_method =
6355 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6356 IEEE80211_SYNC_METHOD_VENDOR :
6357 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6359 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6360 setup->path_sel_proto =
6361 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6362 IEEE80211_PATH_PROTOCOL_VENDOR :
6363 IEEE80211_PATH_PROTOCOL_HWMP;
6365 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6366 setup->path_metric =
6367 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6368 IEEE80211_PATH_METRIC_VENDOR :
6369 IEEE80211_PATH_METRIC_AIRTIME;
6371 if (tb[NL80211_MESH_SETUP_IE]) {
6372 struct nlattr *ieattr =
6373 tb[NL80211_MESH_SETUP_IE];
6374 setup->ie = nla_data(ieattr);
6375 setup->ie_len = nla_len(ieattr);
6377 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6378 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6380 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
6381 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6382 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
6383 if (setup->is_secure)
6384 setup->user_mpm = true;
6386 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6387 if (!setup->user_mpm)
6390 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6396 static int nl80211_update_mesh_config(struct sk_buff *skb,
6397 struct genl_info *info)
6399 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6400 struct net_device *dev = info->user_ptr[1];
6401 struct wireless_dev *wdev = dev->ieee80211_ptr;
6402 struct mesh_config cfg;
6406 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6409 if (!rdev->ops->update_mesh_config)
6412 err = nl80211_parse_mesh_config(info, &cfg, &mask);
6417 if (!wdev->mesh_id_len)
6421 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
6428 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6429 struct sk_buff *msg)
6431 struct nlattr *nl_reg_rules;
6434 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6435 (regdom->dfs_region &&
6436 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
6437 goto nla_put_failure;
6439 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6441 goto nla_put_failure;
6443 for (i = 0; i < regdom->n_reg_rules; i++) {
6444 struct nlattr *nl_reg_rule;
6445 const struct ieee80211_reg_rule *reg_rule;
6446 const struct ieee80211_freq_range *freq_range;
6447 const struct ieee80211_power_rule *power_rule;
6448 unsigned int max_bandwidth_khz;
6450 reg_rule = ®dom->reg_rules[i];
6451 freq_range = ®_rule->freq_range;
6452 power_rule = ®_rule->power_rule;
6454 nl_reg_rule = nla_nest_start(msg, i);
6456 goto nla_put_failure;
6458 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6459 if (!max_bandwidth_khz)
6460 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6463 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6465 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6466 freq_range->start_freq_khz) ||
6467 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6468 freq_range->end_freq_khz) ||
6469 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
6470 max_bandwidth_khz) ||
6471 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6472 power_rule->max_antenna_gain) ||
6473 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
6474 power_rule->max_eirp) ||
6475 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6476 reg_rule->dfs_cac_ms))
6477 goto nla_put_failure;
6479 nla_nest_end(msg, nl_reg_rule);
6482 nla_nest_end(msg, nl_reg_rules);
6489 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6491 const struct ieee80211_regdomain *regdom = NULL;
6492 struct cfg80211_registered_device *rdev;
6493 struct wiphy *wiphy = NULL;
6494 struct sk_buff *msg;
6497 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6501 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6502 NL80211_CMD_GET_REG);
6506 if (info->attrs[NL80211_ATTR_WIPHY]) {
6509 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6512 return PTR_ERR(rdev);
6515 wiphy = &rdev->wiphy;
6516 self_managed = wiphy->regulatory_flags &
6517 REGULATORY_WIPHY_SELF_MANAGED;
6518 regdom = get_wiphy_regdom(wiphy);
6520 /* a self-managed-reg device must have a private regdom */
6521 if (WARN_ON(!regdom && self_managed)) {
6527 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6528 goto nla_put_failure;
6531 if (!wiphy && reg_last_request_cell_base() &&
6532 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6533 NL80211_USER_REG_HINT_CELL_BASE))
6534 goto nla_put_failure;
6539 regdom = rcu_dereference(cfg80211_regdomain);
6541 if (nl80211_put_regdom(regdom, msg))
6542 goto nla_put_failure_rcu;
6546 genlmsg_end(msg, hdr);
6547 return genlmsg_reply(msg, info);
6549 nla_put_failure_rcu:
6557 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6558 u32 seq, int flags, struct wiphy *wiphy,
6559 const struct ieee80211_regdomain *regdom)
6561 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6562 NL80211_CMD_GET_REG);
6567 genl_dump_check_consistent(cb, hdr);
6569 if (nl80211_put_regdom(regdom, msg))
6570 goto nla_put_failure;
6572 if (!wiphy && reg_last_request_cell_base() &&
6573 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6574 NL80211_USER_REG_HINT_CELL_BASE))
6575 goto nla_put_failure;
6578 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6579 goto nla_put_failure;
6581 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6582 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6583 goto nla_put_failure;
6585 genlmsg_end(msg, hdr);
6589 genlmsg_cancel(msg, hdr);
6593 static int nl80211_get_reg_dump(struct sk_buff *skb,
6594 struct netlink_callback *cb)
6596 const struct ieee80211_regdomain *regdom = NULL;
6597 struct cfg80211_registered_device *rdev;
6598 int err, reg_idx, start = cb->args[2];
6602 if (cfg80211_regdomain && start == 0) {
6603 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6605 rtnl_dereference(cfg80211_regdomain));
6610 /* the global regdom is idx 0 */
6612 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6613 regdom = get_wiphy_regdom(&rdev->wiphy);
6617 if (++reg_idx <= start)
6620 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6621 NLM_F_MULTI, &rdev->wiphy, regdom);
6628 cb->args[2] = reg_idx;
6635 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
6636 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6637 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6638 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6639 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6640 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6641 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6642 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6643 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6646 static int parse_reg_rule(struct nlattr *tb[],
6647 struct ieee80211_reg_rule *reg_rule)
6649 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
6650 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
6652 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6654 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6656 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6658 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6660 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6663 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6665 freq_range->start_freq_khz =
6666 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6667 freq_range->end_freq_khz =
6668 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6669 freq_range->max_bandwidth_khz =
6670 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6672 power_rule->max_eirp =
6673 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6675 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6676 power_rule->max_antenna_gain =
6677 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6679 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6680 reg_rule->dfs_cac_ms =
6681 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6686 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6688 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6689 struct nlattr *nl_reg_rule;
6691 int rem_reg_rules, r;
6692 u32 num_rules = 0, rule_idx = 0, size_of_regd;
6693 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
6694 struct ieee80211_regdomain *rd;
6696 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6699 if (!info->attrs[NL80211_ATTR_REG_RULES])
6702 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6704 if (info->attrs[NL80211_ATTR_DFS_REGION])
6705 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6707 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6710 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
6714 if (!reg_is_valid_request(alpha2))
6717 size_of_regd = sizeof(struct ieee80211_regdomain) +
6718 num_rules * sizeof(struct ieee80211_reg_rule);
6720 rd = kzalloc(size_of_regd, GFP_KERNEL);
6724 rd->n_reg_rules = num_rules;
6725 rd->alpha2[0] = alpha2[0];
6726 rd->alpha2[1] = alpha2[1];
6729 * Disable DFS master mode if the DFS region was
6730 * not supported or known on this kernel.
6732 if (reg_supported_dfs_region(dfs_region))
6733 rd->dfs_region = dfs_region;
6735 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6737 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
6738 nl_reg_rule, reg_rule_policy,
6742 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6748 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6754 /* set_regdom takes ownership of rd */
6755 return set_regdom(rd, REGD_SOURCE_CRDA);
6760 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
6762 static int validate_scan_freqs(struct nlattr *freqs)
6764 struct nlattr *attr1, *attr2;
6765 int n_channels = 0, tmp1, tmp2;
6767 nla_for_each_nested(attr1, freqs, tmp1)
6768 if (nla_len(attr1) != sizeof(u32))
6771 nla_for_each_nested(attr1, freqs, tmp1) {
6774 * Some hardware has a limited channel list for
6775 * scanning, and it is pretty much nonsensical
6776 * to scan for a channel twice, so disallow that
6777 * and don't require drivers to check that the
6778 * channel list they get isn't longer than what
6779 * they can scan, as long as they can scan all
6780 * the channels they registered at once.
6782 nla_for_each_nested(attr2, freqs, tmp2)
6783 if (attr1 != attr2 &&
6784 nla_get_u32(attr1) == nla_get_u32(attr2))
6791 static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
6793 return b < NUM_NL80211_BANDS && wiphy->bands[b];
6796 static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6797 struct cfg80211_bss_selection *bss_select)
6799 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6800 struct nlattr *nest;
6805 /* only process one nested attribute */
6806 nest = nla_data(nla);
6807 if (!nla_ok(nest, nla_len(nest)))
6810 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
6811 nl80211_bss_select_policy, NULL);
6815 /* only one attribute may be given */
6816 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6824 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6826 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6827 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6829 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6830 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6831 bss_select->param.band_pref =
6832 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6833 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6837 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6838 struct nl80211_bss_select_rssi_adjust *adj_param;
6840 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6841 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6842 bss_select->param.adjust.band = adj_param->band;
6843 bss_select->param.adjust.delta = adj_param->delta;
6844 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6848 /* user-space did not provide behaviour attribute */
6849 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6852 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6858 static int nl80211_parse_random_mac(struct nlattr **attrs,
6859 u8 *mac_addr, u8 *mac_addr_mask)
6863 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
6864 eth_zero_addr(mac_addr);
6865 eth_zero_addr(mac_addr_mask);
6867 mac_addr_mask[0] = 0x3;
6872 /* need both or none */
6873 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6876 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6877 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6879 /* don't allow or configure an mcast address */
6880 if (!is_multicast_ether_addr(mac_addr_mask) ||
6881 is_multicast_ether_addr(mac_addr))
6885 * allow users to pass a MAC address that has bits set outside
6886 * of the mask, but don't bother drivers with having to deal
6889 for (i = 0; i < ETH_ALEN; i++)
6890 mac_addr[i] &= mac_addr_mask[i];
6895 static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6897 ASSERT_WDEV_LOCK(wdev);
6899 if (!cfg80211_beaconing_iface_active(wdev))
6902 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6905 return regulatory_pre_cac_allowed(wdev->wiphy);
6908 static bool nl80211_check_scan_feat(struct wiphy *wiphy, u32 flags, u32 flag,
6909 enum nl80211_ext_feature_index feat)
6911 if (!(flags & flag))
6913 if (wiphy_ext_feature_isset(wiphy, feat))
6919 nl80211_check_scan_flags(struct wiphy *wiphy, struct wireless_dev *wdev,
6920 void *request, struct nlattr **attrs,
6923 u8 *mac_addr, *mac_addr_mask;
6925 enum nl80211_feature_flags randomness_flag;
6927 if (!attrs[NL80211_ATTR_SCAN_FLAGS])
6930 if (is_sched_scan) {
6931 struct cfg80211_sched_scan_request *req = request;
6933 randomness_flag = wdev ?
6934 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR :
6935 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6936 flags = &req->flags;
6937 mac_addr = req->mac_addr;
6938 mac_addr_mask = req->mac_addr_mask;
6940 struct cfg80211_scan_request *req = request;
6942 randomness_flag = NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
6943 flags = &req->flags;
6944 mac_addr = req->mac_addr;
6945 mac_addr_mask = req->mac_addr_mask;
6948 *flags = nla_get_u32(attrs[NL80211_ATTR_SCAN_FLAGS]);
6950 if (((*flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6951 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
6952 !nl80211_check_scan_feat(wiphy, *flags,
6953 NL80211_SCAN_FLAG_LOW_SPAN,
6954 NL80211_EXT_FEATURE_LOW_SPAN_SCAN) ||
6955 !nl80211_check_scan_feat(wiphy, *flags,
6956 NL80211_SCAN_FLAG_LOW_POWER,
6957 NL80211_EXT_FEATURE_LOW_POWER_SCAN) ||
6958 !nl80211_check_scan_feat(wiphy, *flags,
6959 NL80211_SCAN_FLAG_HIGH_ACCURACY,
6960 NL80211_EXT_FEATURE_HIGH_ACCURACY_SCAN) ||
6961 !nl80211_check_scan_feat(wiphy, *flags,
6962 NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME,
6963 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME) ||
6964 !nl80211_check_scan_feat(wiphy, *flags,
6965 NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP,
6966 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP) ||
6967 !nl80211_check_scan_feat(wiphy, *flags,
6968 NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION,
6969 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) ||
6970 !nl80211_check_scan_feat(wiphy, *flags,
6971 NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE,
6972 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE) ||
6973 !nl80211_check_scan_feat(wiphy, *flags,
6974 NL80211_SCAN_FLAG_RANDOM_SN,
6975 NL80211_EXT_FEATURE_SCAN_RANDOM_SN) ||
6976 !nl80211_check_scan_feat(wiphy, *flags,
6977 NL80211_SCAN_FLAG_MIN_PREQ_CONTENT,
6978 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT))
6981 if (*flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6984 if (!(wiphy->features & randomness_flag) ||
6985 (wdev && wdev->current_bss))
6988 err = nl80211_parse_random_mac(attrs, mac_addr, mac_addr_mask);
6996 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6998 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6999 struct wireless_dev *wdev = info->user_ptr[1];
7000 struct cfg80211_scan_request *request;
7001 struct nlattr *attr;
7002 struct wiphy *wiphy;
7003 int err, tmp, n_ssids = 0, n_channels, i;
7006 wiphy = &rdev->wiphy;
7008 if (wdev->iftype == NL80211_IFTYPE_NAN)
7011 if (!rdev->ops->scan)
7014 if (rdev->scan_req || rdev->scan_msg) {
7019 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7020 n_channels = validate_scan_freqs(
7021 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
7027 n_channels = ieee80211_get_num_supported_channels(wiphy);
7030 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
7031 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
7034 if (n_ssids > wiphy->max_scan_ssids) {
7039 if (info->attrs[NL80211_ATTR_IE])
7040 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7044 if (ie_len > wiphy->max_scan_ie_len) {
7049 request = kzalloc(sizeof(*request)
7050 + sizeof(*request->ssids) * n_ssids
7051 + sizeof(*request->channels) * n_channels
7052 + ie_len, GFP_KERNEL);
7059 request->ssids = (void *)&request->channels[n_channels];
7060 request->n_ssids = n_ssids;
7063 request->ie = (void *)(request->ssids + n_ssids);
7065 request->ie = (void *)(request->channels + n_channels);
7069 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7070 /* user specified, bail out if channel not found */
7071 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
7072 struct ieee80211_channel *chan;
7074 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7081 /* ignore disabled channels */
7082 if (chan->flags & IEEE80211_CHAN_DISABLED)
7085 request->channels[i] = chan;
7089 enum nl80211_band band;
7092 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7095 if (!wiphy->bands[band])
7097 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7098 struct ieee80211_channel *chan;
7100 chan = &wiphy->bands[band]->channels[j];
7102 if (chan->flags & IEEE80211_CHAN_DISABLED)
7105 request->channels[i] = chan;
7116 request->n_channels = i;
7119 if (!cfg80211_off_channel_oper_allowed(wdev)) {
7120 struct ieee80211_channel *chan;
7122 if (request->n_channels != 1) {
7128 chan = request->channels[0];
7129 if (chan->center_freq != wdev->chandef.chan->center_freq) {
7139 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
7140 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
7144 request->ssids[i].ssid_len = nla_len(attr);
7145 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
7150 if (info->attrs[NL80211_ATTR_IE]) {
7151 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7152 memcpy((void *)request->ie,
7153 nla_data(info->attrs[NL80211_ATTR_IE]),
7157 for (i = 0; i < NUM_NL80211_BANDS; i++)
7158 if (wiphy->bands[i])
7160 (1 << wiphy->bands[i]->n_bitrates) - 1;
7162 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
7163 nla_for_each_nested(attr,
7164 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
7166 enum nl80211_band band = nla_type(attr);
7168 if (band < 0 || band >= NUM_NL80211_BANDS) {
7173 if (!wiphy->bands[band])
7176 err = ieee80211_get_ratemask(wiphy->bands[band],
7179 &request->rates[band]);
7185 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
7186 if (!wiphy_ext_feature_isset(wiphy,
7187 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
7193 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
7194 request->duration_mandatory =
7195 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
7198 err = nl80211_check_scan_flags(wiphy, wdev, request, info->attrs,
7204 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7206 /* Initial implementation used NL80211_ATTR_MAC to set the specific
7207 * BSSID to scan for. This was problematic because that same attribute
7208 * was already used for another purpose (local random MAC address). The
7209 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
7210 * compatibility with older userspace components, also use the
7211 * NL80211_ATTR_MAC value here if it can be determined to be used for
7212 * the specific BSSID use case instead of the random MAC address
7213 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
7215 if (info->attrs[NL80211_ATTR_BSSID])
7216 memcpy(request->bssid,
7217 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
7218 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
7219 info->attrs[NL80211_ATTR_MAC])
7220 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
7223 eth_broadcast_addr(request->bssid);
7225 request->wdev = wdev;
7226 request->wiphy = &rdev->wiphy;
7227 request->scan_start = jiffies;
7229 rdev->scan_req = request;
7230 err = rdev_scan(rdev, request);
7233 nl80211_send_scan_start(rdev, wdev);
7235 dev_hold(wdev->netdev);
7238 rdev->scan_req = NULL;
7246 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
7248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7249 struct wireless_dev *wdev = info->user_ptr[1];
7251 if (!rdev->ops->abort_scan)
7257 if (!rdev->scan_req)
7260 rdev_abort_scan(rdev, wdev);
7265 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
7266 struct cfg80211_sched_scan_request *request,
7267 struct nlattr **attrs)
7269 int tmp, err, i = 0;
7270 struct nlattr *attr;
7272 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7276 * If scan plans are not specified,
7277 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
7278 * case one scan plan will be set with the specified scan
7279 * interval and infinite number of iterations.
7281 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
7285 request->scan_plans[0].interval =
7286 DIV_ROUND_UP(interval, MSEC_PER_SEC);
7287 if (!request->scan_plans[0].interval)
7290 if (request->scan_plans[0].interval >
7291 wiphy->max_sched_scan_plan_interval)
7292 request->scan_plans[0].interval =
7293 wiphy->max_sched_scan_plan_interval;
7298 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
7299 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
7301 if (WARN_ON(i >= n_plans))
7304 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
7305 attr, nl80211_plan_policy, NULL);
7309 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
7312 request->scan_plans[i].interval =
7313 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
7314 if (!request->scan_plans[i].interval ||
7315 request->scan_plans[i].interval >
7316 wiphy->max_sched_scan_plan_interval)
7319 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
7320 request->scan_plans[i].iterations =
7321 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
7322 if (!request->scan_plans[i].iterations ||
7323 (request->scan_plans[i].iterations >
7324 wiphy->max_sched_scan_plan_iterations))
7326 } else if (i < n_plans - 1) {
7328 * All scan plans but the last one must specify
7329 * a finite number of iterations
7338 * The last scan plan must not specify the number of
7339 * iterations, it is supposed to run infinitely
7341 if (request->scan_plans[n_plans - 1].iterations)
7347 static struct cfg80211_sched_scan_request *
7348 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
7349 struct nlattr **attrs, int max_match_sets)
7351 struct cfg80211_sched_scan_request *request;
7352 struct nlattr *attr;
7353 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
7354 enum nl80211_band band;
7356 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
7357 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
7359 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7360 n_channels = validate_scan_freqs(
7361 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
7363 return ERR_PTR(-EINVAL);
7365 n_channels = ieee80211_get_num_supported_channels(wiphy);
7368 if (attrs[NL80211_ATTR_SCAN_SSIDS])
7369 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7373 if (n_ssids > wiphy->max_sched_scan_ssids)
7374 return ERR_PTR(-EINVAL);
7377 * First, count the number of 'real' matchsets. Due to an issue with
7378 * the old implementation, matchsets containing only the RSSI attribute
7379 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
7380 * RSSI for all matchsets, rather than their own matchset for reporting
7381 * all APs with a strong RSSI. This is needed to be compatible with
7382 * older userspace that treated a matchset with only the RSSI as the
7383 * global RSSI for all other matchsets - if there are other matchsets.
7385 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7386 nla_for_each_nested(attr,
7387 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7389 struct nlattr *rssi;
7391 err = nla_parse_nested(tb,
7392 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7393 attr, nl80211_match_policy,
7396 return ERR_PTR(err);
7398 /* SSID and BSSID are mutually exclusive */
7399 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
7400 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
7401 return ERR_PTR(-EINVAL);
7403 /* add other standalone attributes here */
7404 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
7405 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
7409 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7411 default_match_rssi = nla_get_s32(rssi);
7415 /* However, if there's no other matchset, add the RSSI one */
7416 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7419 if (n_match_sets > max_match_sets)
7420 return ERR_PTR(-EINVAL);
7422 if (attrs[NL80211_ATTR_IE])
7423 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
7427 if (ie_len > wiphy->max_sched_scan_ie_len)
7428 return ERR_PTR(-EINVAL);
7430 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7432 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7433 * each scan plan already specifies its own interval
7435 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7436 return ERR_PTR(-EINVAL);
7438 nla_for_each_nested(attr,
7439 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7443 * The scan interval attribute is kept for backward
7444 * compatibility. If no scan plans are specified and sched scan
7445 * interval is specified, one scan plan will be set with this
7446 * scan interval and infinite number of iterations.
7448 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7449 return ERR_PTR(-EINVAL);
7454 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7455 return ERR_PTR(-EINVAL);
7457 if (!wiphy_ext_feature_isset(
7458 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7459 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7460 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7461 return ERR_PTR(-EINVAL);
7463 request = kzalloc(sizeof(*request)
7464 + sizeof(*request->ssids) * n_ssids
7465 + sizeof(*request->match_sets) * n_match_sets
7466 + sizeof(*request->scan_plans) * n_plans
7467 + sizeof(*request->channels) * n_channels
7468 + ie_len, GFP_KERNEL);
7470 return ERR_PTR(-ENOMEM);
7473 request->ssids = (void *)&request->channels[n_channels];
7474 request->n_ssids = n_ssids;
7477 request->ie = (void *)(request->ssids + n_ssids);
7479 request->ie = (void *)(request->channels + n_channels);
7484 request->match_sets = (void *)(request->ie + ie_len);
7486 request->match_sets =
7487 (void *)(request->ssids + n_ssids);
7489 request->match_sets =
7490 (void *)(request->channels + n_channels);
7492 request->n_match_sets = n_match_sets;
7495 request->scan_plans = (void *)(request->match_sets +
7497 else if (request->ie)
7498 request->scan_plans = (void *)(request->ie + ie_len);
7500 request->scan_plans = (void *)(request->ssids + n_ssids);
7502 request->scan_plans = (void *)(request->channels + n_channels);
7504 request->n_scan_plans = n_plans;
7507 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7508 /* user specified, bail out if channel not found */
7509 nla_for_each_nested(attr,
7510 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
7512 struct ieee80211_channel *chan;
7514 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7521 /* ignore disabled channels */
7522 if (chan->flags & IEEE80211_CHAN_DISABLED)
7525 request->channels[i] = chan;
7530 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7533 if (!wiphy->bands[band])
7535 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7536 struct ieee80211_channel *chan;
7538 chan = &wiphy->bands[band]->channels[j];
7540 if (chan->flags & IEEE80211_CHAN_DISABLED)
7543 request->channels[i] = chan;
7554 request->n_channels = i;
7558 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7560 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
7564 request->ssids[i].ssid_len = nla_len(attr);
7565 memcpy(request->ssids[i].ssid, nla_data(attr),
7572 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7573 nla_for_each_nested(attr,
7574 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7576 struct nlattr *ssid, *bssid, *rssi;
7578 err = nla_parse_nested(tb,
7579 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7580 attr, nl80211_match_policy,
7584 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
7585 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
7586 if (ssid || bssid) {
7587 if (WARN_ON(i >= n_match_sets)) {
7588 /* this indicates a programming error,
7589 * the loop above should have verified
7597 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7601 memcpy(request->match_sets[i].ssid.ssid,
7602 nla_data(ssid), nla_len(ssid));
7603 request->match_sets[i].ssid.ssid_len =
7607 if (nla_len(bssid) != ETH_ALEN) {
7611 memcpy(request->match_sets[i].bssid,
7612 nla_data(bssid), ETH_ALEN);
7615 /* special attribute - old implementation w/a */
7616 request->match_sets[i].rssi_thold =
7618 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7620 request->match_sets[i].rssi_thold =
7626 /* there was no other matchset, so the RSSI one is alone */
7627 if (i == 0 && n_match_sets)
7628 request->match_sets[0].rssi_thold = default_match_rssi;
7630 request->min_rssi_thold = INT_MAX;
7631 for (i = 0; i < n_match_sets; i++)
7632 request->min_rssi_thold =
7633 min(request->match_sets[i].rssi_thold,
7634 request->min_rssi_thold);
7636 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
7640 request->ie_len = ie_len;
7641 memcpy((void *)request->ie,
7642 nla_data(attrs[NL80211_ATTR_IE]),
7646 err = nl80211_check_scan_flags(wiphy, wdev, request, attrs, true);
7650 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7652 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7654 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7655 request->relative_rssi = nla_get_s8(
7656 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7657 request->relative_rssi_set = true;
7660 if (request->relative_rssi_set &&
7661 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7662 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7664 rssi_adjust = nla_data(
7665 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7666 request->rssi_adjust.band = rssi_adjust->band;
7667 request->rssi_adjust.delta = rssi_adjust->delta;
7668 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7674 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7678 request->scan_start = jiffies;
7684 return ERR_PTR(err);
7687 static int nl80211_start_sched_scan(struct sk_buff *skb,
7688 struct genl_info *info)
7690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7691 struct net_device *dev = info->user_ptr[1];
7692 struct wireless_dev *wdev = dev->ieee80211_ptr;
7693 struct cfg80211_sched_scan_request *sched_scan_req;
7697 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
7700 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
7701 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
7705 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7707 rdev->wiphy.max_match_sets);
7709 err = PTR_ERR_OR_ZERO(sched_scan_req);
7713 /* leave request id zero for legacy request
7714 * or if driver does not support multi-scheduled scan
7716 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
7717 while (!sched_scan_req->reqid)
7718 sched_scan_req->reqid = cfg80211_assign_cookie(rdev);
7721 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
7725 sched_scan_req->dev = dev;
7726 sched_scan_req->wiphy = &rdev->wiphy;
7728 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7729 sched_scan_req->owner_nlportid = info->snd_portid;
7731 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
7733 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
7737 kfree(sched_scan_req);
7742 static int nl80211_stop_sched_scan(struct sk_buff *skb,
7743 struct genl_info *info)
7745 struct cfg80211_sched_scan_request *req;
7746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7749 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
7752 if (info->attrs[NL80211_ATTR_COOKIE]) {
7753 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7754 return __cfg80211_stop_sched_scan(rdev, cookie, false);
7757 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
7758 struct cfg80211_sched_scan_request,
7760 if (!req || req->reqid ||
7761 (req->owner_nlportid &&
7762 req->owner_nlportid != info->snd_portid))
7765 return cfg80211_stop_sched_scan_req(rdev, req, false);
7768 static int nl80211_start_radar_detection(struct sk_buff *skb,
7769 struct genl_info *info)
7771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7772 struct net_device *dev = info->user_ptr[1];
7773 struct wireless_dev *wdev = dev->ieee80211_ptr;
7774 struct wiphy *wiphy = wdev->wiphy;
7775 struct cfg80211_chan_def chandef;
7776 enum nl80211_dfs_regions dfs_region;
7777 unsigned int cac_time_ms;
7780 dfs_region = reg_get_dfs_region(wiphy);
7781 if (dfs_region == NL80211_DFS_UNSET)
7784 err = nl80211_parse_chandef(rdev, info, &chandef);
7788 if (netif_carrier_ok(dev))
7791 if (wdev->cac_started)
7794 err = cfg80211_chandef_dfs_required(wiphy, &chandef, wdev->iftype);
7801 if (!cfg80211_chandef_dfs_usable(wiphy, &chandef))
7804 /* CAC start is offloaded to HW and can't be started manually */
7805 if (wiphy_ext_feature_isset(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD))
7808 if (!rdev->ops->start_radar_detection)
7811 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7812 if (WARN_ON(!cac_time_ms))
7813 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7815 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
7817 wdev->chandef = chandef;
7818 wdev->cac_started = true;
7819 wdev->cac_start_time = jiffies;
7820 wdev->cac_time_ms = cac_time_ms;
7825 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7828 struct net_device *dev = info->user_ptr[1];
7829 struct wireless_dev *wdev = dev->ieee80211_ptr;
7830 struct cfg80211_csa_settings params;
7831 /* csa_attrs is defined static to avoid waste of stack size - this
7832 * function is called under RTNL lock, so this should not be a problem.
7834 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
7836 bool need_new_beacon = false;
7837 bool need_handle_dfs_flag = true;
7841 if (!rdev->ops->channel_switch ||
7842 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7845 switch (dev->ieee80211_ptr->iftype) {
7846 case NL80211_IFTYPE_AP:
7847 case NL80211_IFTYPE_P2P_GO:
7848 need_new_beacon = true;
7849 /* For all modes except AP the handle_dfs flag needs to be
7850 * supplied to tell the kernel that userspace will handle radar
7851 * events when they happen. Otherwise a switch to a channel
7852 * requiring DFS will be rejected.
7854 need_handle_dfs_flag = false;
7856 /* useless if AP is not running */
7857 if (!wdev->beacon_interval)
7860 case NL80211_IFTYPE_ADHOC:
7861 if (!wdev->ssid_len)
7864 case NL80211_IFTYPE_MESH_POINT:
7865 if (!wdev->mesh_id_len)
7872 memset(¶ms, 0, sizeof(params));
7874 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7875 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7878 /* only important for AP, IBSS and mesh create IEs internally */
7879 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
7882 /* Even though the attribute is u32, the specification says
7883 * u8, so let's make sure we don't overflow.
7885 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7889 params.count = cs_count;
7891 if (!need_new_beacon)
7894 err = nl80211_parse_beacon(rdev, info->attrs, ¶ms.beacon_after);
7898 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7899 info->attrs[NL80211_ATTR_CSA_IES],
7900 nl80211_policy, info->extack);
7904 err = nl80211_parse_beacon(rdev, csa_attrs, ¶ms.beacon_csa);
7908 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7911 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7912 if (!len || (len % sizeof(u16)))
7915 params.n_counter_offsets_beacon = len / sizeof(u16);
7916 if (rdev->wiphy.max_num_csa_counters &&
7917 (params.n_counter_offsets_beacon >
7918 rdev->wiphy.max_num_csa_counters))
7921 params.counter_offsets_beacon =
7922 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7924 /* sanity checks - counters should fit and be the same */
7925 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7926 u16 offset = params.counter_offsets_beacon[i];
7928 if (offset >= params.beacon_csa.tail_len)
7931 if (params.beacon_csa.tail[offset] != params.count)
7935 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
7936 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7937 if (!len || (len % sizeof(u16)))
7940 params.n_counter_offsets_presp = len / sizeof(u16);
7941 if (rdev->wiphy.max_num_csa_counters &&
7942 (params.n_counter_offsets_presp >
7943 rdev->wiphy.max_num_csa_counters))
7946 params.counter_offsets_presp =
7947 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7949 /* sanity checks - counters should fit and be the same */
7950 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7951 u16 offset = params.counter_offsets_presp[i];
7953 if (offset >= params.beacon_csa.probe_resp_len)
7956 if (params.beacon_csa.probe_resp[offset] !=
7963 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
7967 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
7971 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7978 params.radar_required = true;
7979 if (need_handle_dfs_flag &&
7980 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
7985 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7986 params.block_tx = true;
7989 err = rdev_channel_switch(rdev, dev, ¶ms);
7995 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7997 struct cfg80211_registered_device *rdev,
7998 struct wireless_dev *wdev,
7999 struct cfg80211_internal_bss *intbss)
8001 struct cfg80211_bss *res = &intbss->pub;
8002 const struct cfg80211_bss_ies *ies;
8006 ASSERT_WDEV_LOCK(wdev);
8008 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
8009 NL80211_CMD_NEW_SCAN_RESULTS);
8013 genl_dump_check_consistent(cb, hdr);
8015 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
8016 goto nla_put_failure;
8018 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
8019 goto nla_put_failure;
8020 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
8022 goto nla_put_failure;
8024 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
8026 goto nla_put_failure;
8027 if ((!is_zero_ether_addr(res->bssid) &&
8028 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
8029 goto nla_put_failure;
8032 /* indicate whether we have probe response data or not */
8033 if (rcu_access_pointer(res->proberesp_ies) &&
8034 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
8035 goto fail_unlock_rcu;
8037 /* this pointer prefers to be pointed to probe response data
8038 * but is always valid
8040 ies = rcu_dereference(res->ies);
8042 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
8044 goto fail_unlock_rcu;
8045 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
8046 ies->len, ies->data))
8047 goto fail_unlock_rcu;
8050 /* and this pointer is always (unless driver didn't know) beacon data */
8051 ies = rcu_dereference(res->beacon_ies);
8052 if (ies && ies->from_beacon) {
8053 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
8055 goto fail_unlock_rcu;
8056 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
8057 ies->len, ies->data))
8058 goto fail_unlock_rcu;
8062 if (res->beacon_interval &&
8063 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
8064 goto nla_put_failure;
8065 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
8066 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
8067 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
8068 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
8069 jiffies_to_msecs(jiffies - intbss->ts)))
8070 goto nla_put_failure;
8072 if (intbss->parent_tsf &&
8073 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
8074 intbss->parent_tsf, NL80211_BSS_PAD) ||
8075 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
8076 intbss->parent_bssid)))
8077 goto nla_put_failure;
8079 if (intbss->ts_boottime &&
8080 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
8081 intbss->ts_boottime, NL80211_BSS_PAD))
8082 goto nla_put_failure;
8084 if (!nl80211_put_signal(msg, intbss->pub.chains,
8085 intbss->pub.chain_signal,
8086 NL80211_BSS_CHAIN_SIGNAL))
8087 goto nla_put_failure;
8089 switch (rdev->wiphy.signal_type) {
8090 case CFG80211_SIGNAL_TYPE_MBM:
8091 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
8092 goto nla_put_failure;
8094 case CFG80211_SIGNAL_TYPE_UNSPEC:
8095 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
8096 goto nla_put_failure;
8102 switch (wdev->iftype) {
8103 case NL80211_IFTYPE_P2P_CLIENT:
8104 case NL80211_IFTYPE_STATION:
8105 if (intbss == wdev->current_bss &&
8106 nla_put_u32(msg, NL80211_BSS_STATUS,
8107 NL80211_BSS_STATUS_ASSOCIATED))
8108 goto nla_put_failure;
8110 case NL80211_IFTYPE_ADHOC:
8111 if (intbss == wdev->current_bss &&
8112 nla_put_u32(msg, NL80211_BSS_STATUS,
8113 NL80211_BSS_STATUS_IBSS_JOINED))
8114 goto nla_put_failure;
8120 nla_nest_end(msg, bss);
8122 genlmsg_end(msg, hdr);
8128 genlmsg_cancel(msg, hdr);
8132 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
8134 struct cfg80211_registered_device *rdev;
8135 struct cfg80211_internal_bss *scan;
8136 struct wireless_dev *wdev;
8137 int start = cb->args[2], idx = 0;
8141 err = nl80211_prepare_wdev_dump(cb, &rdev, &wdev);
8148 spin_lock_bh(&rdev->bss_lock);
8151 * dump_scan will be called multiple times to break up the scan results
8152 * into multiple messages. It is unlikely that any more bss-es will be
8153 * expired after the first call, so only call only call this on the
8154 * first dump_scan invocation.
8157 cfg80211_bss_expire(rdev);
8159 cb->seq = rdev->bss_generation;
8161 list_for_each_entry(scan, &rdev->bss_list, list) {
8164 if (nl80211_send_bss(skb, cb,
8165 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8166 rdev, wdev, scan) < 0) {
8172 spin_unlock_bh(&rdev->bss_lock);
8181 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
8182 int flags, struct net_device *dev,
8183 bool allow_radio_stats,
8184 struct survey_info *survey)
8187 struct nlattr *infoattr;
8189 /* skip radio stats if userspace didn't request them */
8190 if (!survey->channel && !allow_radio_stats)
8193 hdr = nl80211hdr_put(msg, portid, seq, flags,
8194 NL80211_CMD_NEW_SURVEY_RESULTS);
8198 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
8199 goto nla_put_failure;
8201 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
8203 goto nla_put_failure;
8205 if (survey->channel &&
8206 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
8207 survey->channel->center_freq))
8208 goto nla_put_failure;
8210 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
8211 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
8212 goto nla_put_failure;
8213 if ((survey->filled & SURVEY_INFO_IN_USE) &&
8214 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
8215 goto nla_put_failure;
8216 if ((survey->filled & SURVEY_INFO_TIME) &&
8217 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
8218 survey->time, NL80211_SURVEY_INFO_PAD))
8219 goto nla_put_failure;
8220 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
8221 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
8222 survey->time_busy, NL80211_SURVEY_INFO_PAD))
8223 goto nla_put_failure;
8224 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
8225 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
8226 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
8227 goto nla_put_failure;
8228 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
8229 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
8230 survey->time_rx, NL80211_SURVEY_INFO_PAD))
8231 goto nla_put_failure;
8232 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
8233 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
8234 survey->time_tx, NL80211_SURVEY_INFO_PAD))
8235 goto nla_put_failure;
8236 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
8237 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
8238 survey->time_scan, NL80211_SURVEY_INFO_PAD))
8239 goto nla_put_failure;
8241 nla_nest_end(msg, infoattr);
8243 genlmsg_end(msg, hdr);
8247 genlmsg_cancel(msg, hdr);
8251 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
8253 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8254 struct survey_info survey;
8255 struct cfg80211_registered_device *rdev;
8256 struct wireless_dev *wdev;
8257 int survey_idx = cb->args[2];
8262 res = nl80211_prepare_wdev_dump(cb, &rdev, &wdev);
8266 /* prepare_wdev_dump parsed the attributes */
8267 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
8269 if (!wdev->netdev) {
8274 if (!rdev->ops->dump_survey) {
8280 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
8286 /* don't send disabled channels, but do send non-channel data */
8287 if (survey.channel &&
8288 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
8293 if (nl80211_send_survey(skb,
8294 NETLINK_CB(cb->skb).portid,
8295 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8296 wdev->netdev, radio_stats, &survey) < 0)
8302 cb->args[2] = survey_idx;
8309 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
8311 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
8312 NL80211_WPA_VERSION_2));
8315 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
8317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8318 struct net_device *dev = info->user_ptr[1];
8319 struct ieee80211_channel *chan;
8320 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
8321 int err, ssid_len, ie_len = 0, auth_data_len = 0;
8322 enum nl80211_auth_type auth_type;
8323 struct key_parse key;
8324 bool local_state_change;
8326 if (!info->attrs[NL80211_ATTR_MAC])
8329 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
8332 if (!info->attrs[NL80211_ATTR_SSID])
8335 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8338 err = nl80211_parse_key(info, &key);
8343 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
8345 if (!key.p.key || !key.p.key_len)
8347 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
8348 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
8349 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
8350 key.p.key_len != WLAN_KEY_LEN_WEP104))
8363 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
8364 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
8373 if (!rdev->ops->auth)
8376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8377 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8380 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8381 chan = nl80211_get_valid_chan(&rdev->wiphy,
8382 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8386 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8387 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8389 if (info->attrs[NL80211_ATTR_IE]) {
8390 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8391 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8394 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8395 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
8398 if ((auth_type == NL80211_AUTHTYPE_SAE ||
8399 auth_type == NL80211_AUTHTYPE_FILS_SK ||
8400 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
8401 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
8402 !info->attrs[NL80211_ATTR_AUTH_DATA])
8405 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
8406 if (auth_type != NL80211_AUTHTYPE_SAE &&
8407 auth_type != NL80211_AUTHTYPE_FILS_SK &&
8408 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
8409 auth_type != NL80211_AUTHTYPE_FILS_PK)
8411 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
8412 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
8413 /* need to include at least Auth Transaction and Status Code */
8414 if (auth_data_len < 4)
8418 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8421 * Since we no longer track auth state, ignore
8422 * requests to only change local state.
8424 if (local_state_change)
8427 wdev_lock(dev->ieee80211_ptr);
8428 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
8429 ssid, ssid_len, ie, ie_len,
8430 key.p.key, key.p.key_len, key.idx,
8431 auth_data, auth_data_len);
8432 wdev_unlock(dev->ieee80211_ptr);
8436 static int validate_pae_over_nl80211(struct cfg80211_registered_device *rdev,
8437 struct genl_info *info)
8439 if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8440 GENL_SET_ERR_MSG(info, "SOCKET_OWNER not set");
8444 if (!rdev->ops->tx_control_port ||
8445 !wiphy_ext_feature_isset(&rdev->wiphy,
8446 NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
8452 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
8453 struct genl_info *info,
8454 struct cfg80211_crypto_settings *settings,
8457 memset(settings, 0, sizeof(*settings));
8459 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8461 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8464 proto = nla_get_u16(
8465 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8466 settings->control_port_ethertype = cpu_to_be16(proto);
8467 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8470 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8471 settings->control_port_no_encrypt = true;
8473 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8475 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
8476 int r = validate_pae_over_nl80211(rdev, info);
8481 settings->control_port_over_nl80211 = true;
8484 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8488 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8489 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8490 settings->n_ciphers_pairwise = len / sizeof(u32);
8492 if (len % sizeof(u32))
8495 if (settings->n_ciphers_pairwise > cipher_limit)
8498 memcpy(settings->ciphers_pairwise, data, len);
8500 for (i = 0; i < settings->n_ciphers_pairwise; i++)
8501 if (!cfg80211_supported_cipher_suite(
8503 settings->ciphers_pairwise[i]))
8507 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8508 settings->cipher_group =
8509 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
8510 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8511 settings->cipher_group))
8515 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8516 settings->wpa_versions =
8517 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8518 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8522 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8526 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8527 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8528 settings->n_akm_suites = len / sizeof(u32);
8530 if (len % sizeof(u32))
8533 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8536 memcpy(settings->akm_suites, data, len);
8539 if (info->attrs[NL80211_ATTR_PMK]) {
8540 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
8542 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8543 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
8545 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
8551 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8554 struct net_device *dev = info->user_ptr[1];
8555 struct ieee80211_channel *chan;
8556 struct cfg80211_assoc_request req = {};
8557 const u8 *bssid, *ssid;
8558 int err, ssid_len = 0;
8560 if (dev->ieee80211_ptr->conn_owner_nlportid &&
8561 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
8564 if (!info->attrs[NL80211_ATTR_MAC] ||
8565 !info->attrs[NL80211_ATTR_SSID] ||
8566 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
8569 if (!rdev->ops->assoc)
8572 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8573 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8576 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8578 chan = nl80211_get_valid_chan(&rdev->wiphy,
8579 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8583 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8584 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8586 if (info->attrs[NL80211_ATTR_IE]) {
8587 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8588 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8591 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8592 enum nl80211_mfp mfp =
8593 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8594 if (mfp == NL80211_MFP_REQUIRED)
8596 else if (mfp != NL80211_MFP_NO)
8600 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8601 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8603 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8604 req.flags |= ASSOC_REQ_DISABLE_HT;
8606 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8607 memcpy(&req.ht_capa_mask,
8608 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8609 sizeof(req.ht_capa_mask));
8611 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8612 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8614 memcpy(&req.ht_capa,
8615 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8616 sizeof(req.ht_capa));
8619 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8620 req.flags |= ASSOC_REQ_DISABLE_VHT;
8622 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8623 memcpy(&req.vht_capa_mask,
8624 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8625 sizeof(req.vht_capa_mask));
8627 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8628 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8630 memcpy(&req.vht_capa,
8631 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8632 sizeof(req.vht_capa));
8635 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8636 if (!((rdev->wiphy.features &
8637 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8638 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8639 !wiphy_ext_feature_isset(&rdev->wiphy,
8640 NL80211_EXT_FEATURE_RRM))
8642 req.flags |= ASSOC_REQ_USE_RRM;
8645 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8646 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8647 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8648 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8651 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8654 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
8656 wdev_lock(dev->ieee80211_ptr);
8658 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8659 ssid, ssid_len, &req);
8661 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8662 dev->ieee80211_ptr->conn_owner_nlportid =
8664 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8668 wdev_unlock(dev->ieee80211_ptr);
8674 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8676 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8677 struct net_device *dev = info->user_ptr[1];
8678 const u8 *ie = NULL, *bssid;
8679 int ie_len = 0, err;
8681 bool local_state_change;
8683 if (dev->ieee80211_ptr->conn_owner_nlportid &&
8684 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
8687 if (!info->attrs[NL80211_ATTR_MAC])
8690 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8693 if (!rdev->ops->deauth)
8696 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8697 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8700 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8702 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8703 if (reason_code == 0) {
8704 /* Reason Code 0 is reserved */
8708 if (info->attrs[NL80211_ATTR_IE]) {
8709 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8710 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8713 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8715 wdev_lock(dev->ieee80211_ptr);
8716 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8717 local_state_change);
8718 wdev_unlock(dev->ieee80211_ptr);
8722 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8725 struct net_device *dev = info->user_ptr[1];
8726 const u8 *ie = NULL, *bssid;
8727 int ie_len = 0, err;
8729 bool local_state_change;
8731 if (dev->ieee80211_ptr->conn_owner_nlportid &&
8732 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
8735 if (!info->attrs[NL80211_ATTR_MAC])
8738 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8741 if (!rdev->ops->disassoc)
8744 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8745 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8748 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8750 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8751 if (reason_code == 0) {
8752 /* Reason Code 0 is reserved */
8756 if (info->attrs[NL80211_ATTR_IE]) {
8757 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8758 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8761 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8763 wdev_lock(dev->ieee80211_ptr);
8764 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8765 local_state_change);
8766 wdev_unlock(dev->ieee80211_ptr);
8771 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
8772 int mcast_rate[NUM_NL80211_BANDS],
8775 struct wiphy *wiphy = &rdev->wiphy;
8779 for (band = 0; band < NUM_NL80211_BANDS; band++) {
8780 struct ieee80211_supported_band *sband;
8782 sband = wiphy->bands[band];
8786 for (i = 0; i < sband->n_bitrates; i++) {
8787 if (sband->bitrates[i].bitrate == rateval) {
8788 mcast_rate[band] = i + 1;
8798 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8801 struct net_device *dev = info->user_ptr[1];
8802 struct cfg80211_ibss_params ibss;
8803 struct wiphy *wiphy;
8804 struct cfg80211_cached_keys *connkeys = NULL;
8807 memset(&ibss, 0, sizeof(ibss));
8809 if (!info->attrs[NL80211_ATTR_SSID] ||
8810 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8813 ibss.beacon_interval = 100;
8815 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8816 ibss.beacon_interval =
8817 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8819 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8820 ibss.beacon_interval);
8824 if (!rdev->ops->join_ibss)
8827 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8830 wiphy = &rdev->wiphy;
8832 if (info->attrs[NL80211_ATTR_MAC]) {
8833 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8835 if (!is_valid_ether_addr(ibss.bssid))
8838 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8839 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8841 if (info->attrs[NL80211_ATTR_IE]) {
8842 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8843 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8846 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8850 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8851 NL80211_IFTYPE_ADHOC))
8854 switch (ibss.chandef.width) {
8855 case NL80211_CHAN_WIDTH_5:
8856 case NL80211_CHAN_WIDTH_10:
8857 case NL80211_CHAN_WIDTH_20_NOHT:
8859 case NL80211_CHAN_WIDTH_20:
8860 case NL80211_CHAN_WIDTH_40:
8861 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8864 case NL80211_CHAN_WIDTH_80:
8865 case NL80211_CHAN_WIDTH_80P80:
8866 case NL80211_CHAN_WIDTH_160:
8867 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8869 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8870 NL80211_EXT_FEATURE_VHT_IBSS))
8877 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
8878 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8880 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8882 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8884 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8885 struct ieee80211_supported_band *sband =
8886 wiphy->bands[ibss.chandef.chan->band];
8888 err = ieee80211_get_ratemask(sband, rates, n_rates,
8894 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8895 memcpy(&ibss.ht_capa_mask,
8896 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8897 sizeof(ibss.ht_capa_mask));
8899 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8900 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8902 memcpy(&ibss.ht_capa,
8903 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8904 sizeof(ibss.ht_capa));
8907 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8908 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8909 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8912 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8915 connkeys = nl80211_parse_connkeys(rdev, info, &no_ht);
8916 if (IS_ERR(connkeys))
8917 return PTR_ERR(connkeys);
8919 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8927 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8929 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
8930 int r = validate_pae_over_nl80211(rdev, info);
8935 ibss.control_port_over_nl80211 = true;
8938 ibss.userspace_handles_dfs =
8939 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8941 wdev_lock(dev->ieee80211_ptr);
8942 err = __cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
8945 else if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
8946 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
8947 wdev_unlock(dev->ieee80211_ptr);
8952 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8954 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8955 struct net_device *dev = info->user_ptr[1];
8957 if (!rdev->ops->leave_ibss)
8960 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8963 return cfg80211_leave_ibss(rdev, dev, false);
8966 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8969 struct net_device *dev = info->user_ptr[1];
8970 int mcast_rate[NUM_NL80211_BANDS];
8974 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
8975 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8976 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
8979 if (!rdev->ops->set_mcast_rate)
8982 memset(mcast_rate, 0, sizeof(mcast_rate));
8984 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8987 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8988 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8991 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
8996 static struct sk_buff *
8997 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
8998 struct wireless_dev *wdev, int approxlen,
8999 u32 portid, u32 seq, enum nl80211_commands cmd,
9000 enum nl80211_attrs attr,
9001 const struct nl80211_vendor_cmd_info *info,
9004 struct sk_buff *skb;
9006 struct nlattr *data;
9008 skb = nlmsg_new(approxlen + 100, gfp);
9012 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
9018 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9019 goto nla_put_failure;
9022 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
9024 goto nla_put_failure;
9025 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
9027 goto nla_put_failure;
9031 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
9032 wdev_id(wdev), NL80211_ATTR_PAD))
9033 goto nla_put_failure;
9035 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
9036 wdev->netdev->ifindex))
9037 goto nla_put_failure;
9040 data = nla_nest_start(skb, attr);
9042 goto nla_put_failure;
9044 ((void **)skb->cb)[0] = rdev;
9045 ((void **)skb->cb)[1] = hdr;
9046 ((void **)skb->cb)[2] = data;
9055 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
9056 struct wireless_dev *wdev,
9057 enum nl80211_commands cmd,
9058 enum nl80211_attrs attr,
9059 int vendor_event_idx,
9060 int approxlen, gfp_t gfp)
9062 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9063 const struct nl80211_vendor_cmd_info *info;
9066 case NL80211_CMD_TESTMODE:
9067 if (WARN_ON(vendor_event_idx != -1))
9071 case NL80211_CMD_VENDOR:
9072 if (WARN_ON(vendor_event_idx < 0 ||
9073 vendor_event_idx >= wiphy->n_vendor_events))
9075 info = &wiphy->vendor_events[vendor_event_idx];
9082 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
9083 cmd, attr, info, gfp);
9085 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
9087 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
9089 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9090 void *hdr = ((void **)skb->cb)[1];
9091 struct nlattr *data = ((void **)skb->cb)[2];
9092 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
9094 /* clear CB data for netlink core to own from now on */
9095 memset(skb->cb, 0, sizeof(skb->cb));
9097 nla_nest_end(skb, data);
9098 genlmsg_end(skb, hdr);
9100 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
9101 mcgrp = NL80211_MCGRP_VENDOR;
9103 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
9106 EXPORT_SYMBOL(__cfg80211_send_event_skb);
9108 #ifdef CONFIG_NL80211_TESTMODE
9109 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
9111 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9112 struct wireless_dev *wdev =
9113 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9116 if (!rdev->ops->testmode_cmd)
9120 err = PTR_ERR(wdev);
9124 } else if (wdev->wiphy != &rdev->wiphy) {
9128 if (!info->attrs[NL80211_ATTR_TESTDATA])
9131 rdev->cur_cmd_info = info;
9132 err = rdev_testmode_cmd(rdev, wdev,
9133 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
9134 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
9135 rdev->cur_cmd_info = NULL;
9140 static int nl80211_testmode_dump(struct sk_buff *skb,
9141 struct netlink_callback *cb)
9143 struct cfg80211_registered_device *rdev;
9153 * 0 is a valid index, but not valid for args[0],
9154 * so we need to offset by 1.
9156 phy_idx = cb->args[0] - 1;
9158 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
9164 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
9166 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
9167 attrbuf, nl80211_fam.maxattr,
9168 nl80211_policy, NULL);
9172 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
9174 err = PTR_ERR(rdev);
9177 phy_idx = rdev->wiphy_idx;
9179 if (attrbuf[NL80211_ATTR_TESTDATA])
9180 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
9184 data = nla_data((void *)cb->args[1]);
9185 data_len = nla_len((void *)cb->args[1]);
9188 if (!rdev->ops->testmode_dump) {
9194 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
9195 cb->nlh->nlmsg_seq, NLM_F_MULTI,
9196 NL80211_CMD_TESTMODE);
9197 struct nlattr *tmdata;
9202 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
9203 genlmsg_cancel(skb, hdr);
9207 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
9209 genlmsg_cancel(skb, hdr);
9212 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
9213 nla_nest_end(skb, tmdata);
9215 if (err == -ENOBUFS || err == -ENOENT) {
9216 genlmsg_cancel(skb, hdr);
9219 genlmsg_cancel(skb, hdr);
9223 genlmsg_end(skb, hdr);
9228 cb->args[0] = phy_idx + 1;
9235 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
9237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9238 struct net_device *dev = info->user_ptr[1];
9239 struct cfg80211_connect_params connect;
9240 struct wiphy *wiphy;
9241 struct cfg80211_cached_keys *connkeys = NULL;
9244 memset(&connect, 0, sizeof(connect));
9246 if (!info->attrs[NL80211_ATTR_SSID] ||
9247 !nla_len(info->attrs[NL80211_ATTR_SSID]))
9250 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
9252 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
9253 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
9254 NL80211_CMD_CONNECT))
9257 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
9259 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
9261 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
9262 !wiphy_ext_feature_isset(&rdev->wiphy,
9263 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
9265 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
9267 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
9268 NL80211_MAX_NR_CIPHER_SUITES);
9272 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9273 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9276 wiphy = &rdev->wiphy;
9278 connect.bg_scan_period = -1;
9279 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
9280 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
9281 connect.bg_scan_period =
9282 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
9285 if (info->attrs[NL80211_ATTR_MAC])
9286 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9287 else if (info->attrs[NL80211_ATTR_MAC_HINT])
9288 connect.bssid_hint =
9289 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
9290 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9291 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9293 if (info->attrs[NL80211_ATTR_IE]) {
9294 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9295 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9298 if (info->attrs[NL80211_ATTR_USE_MFP]) {
9299 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
9300 if (connect.mfp == NL80211_MFP_OPTIONAL &&
9301 !wiphy_ext_feature_isset(&rdev->wiphy,
9302 NL80211_EXT_FEATURE_MFP_OPTIONAL))
9305 connect.mfp = NL80211_MFP_NO;
9308 if (info->attrs[NL80211_ATTR_PREV_BSSID])
9309 connect.prev_bssid =
9310 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
9312 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9313 connect.channel = nl80211_get_valid_chan(
9314 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
9315 if (!connect.channel)
9317 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
9318 connect.channel_hint = nl80211_get_valid_chan(
9319 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
9320 if (!connect.channel_hint)
9324 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
9325 connkeys = nl80211_parse_connkeys(rdev, info, NULL);
9326 if (IS_ERR(connkeys))
9327 return PTR_ERR(connkeys);
9330 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
9331 connect.flags |= ASSOC_REQ_DISABLE_HT;
9333 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
9334 memcpy(&connect.ht_capa_mask,
9335 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
9336 sizeof(connect.ht_capa_mask));
9338 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
9339 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
9343 memcpy(&connect.ht_capa,
9344 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
9345 sizeof(connect.ht_capa));
9348 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
9349 connect.flags |= ASSOC_REQ_DISABLE_VHT;
9351 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
9352 memcpy(&connect.vht_capa_mask,
9353 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
9354 sizeof(connect.vht_capa_mask));
9356 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
9357 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
9361 memcpy(&connect.vht_capa,
9362 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
9363 sizeof(connect.vht_capa));
9366 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
9367 if (!((rdev->wiphy.features &
9368 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
9369 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
9370 !wiphy_ext_feature_isset(&rdev->wiphy,
9371 NL80211_EXT_FEATURE_RRM)) {
9375 connect.flags |= ASSOC_REQ_USE_RRM;
9378 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
9379 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
9384 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
9385 /* bss selection makes no sense if bssid is set */
9386 if (connect.bssid) {
9391 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
9392 wiphy, &connect.bss_select);
9399 if (wiphy_ext_feature_isset(&rdev->wiphy,
9400 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
9401 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9402 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9403 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9404 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9405 connect.fils_erp_username =
9406 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9407 connect.fils_erp_username_len =
9408 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9409 connect.fils_erp_realm =
9410 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9411 connect.fils_erp_realm_len =
9412 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9413 connect.fils_erp_next_seq_num =
9415 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9416 connect.fils_erp_rrk =
9417 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9418 connect.fils_erp_rrk_len =
9419 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9420 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9421 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9422 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9423 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9428 if (nla_get_flag(info->attrs[NL80211_ATTR_EXTERNAL_AUTH_SUPPORT])) {
9429 if (!info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9431 GENL_SET_ERR_MSG(info,
9432 "external auth requires connection ownership");
9435 connect.flags |= CONNECT_REQ_EXTERNAL_AUTH_SUPPORT;
9438 wdev_lock(dev->ieee80211_ptr);
9440 err = cfg80211_connect(rdev, dev, &connect, connkeys,
9441 connect.prev_bssid);
9445 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9446 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9448 memcpy(dev->ieee80211_ptr->disconnect_bssid,
9449 connect.bssid, ETH_ALEN);
9451 memset(dev->ieee80211_ptr->disconnect_bssid,
9455 wdev_unlock(dev->ieee80211_ptr);
9460 static int nl80211_update_connect_params(struct sk_buff *skb,
9461 struct genl_info *info)
9463 struct cfg80211_connect_params connect = {};
9464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9465 struct net_device *dev = info->user_ptr[1];
9466 struct wireless_dev *wdev = dev->ieee80211_ptr;
9467 bool fils_sk_offload;
9472 if (!rdev->ops->update_connect_params)
9475 if (info->attrs[NL80211_ATTR_IE]) {
9476 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9477 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9478 changed |= UPDATE_ASSOC_IES;
9481 fils_sk_offload = wiphy_ext_feature_isset(&rdev->wiphy,
9482 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD);
9485 * when driver supports fils-sk offload all attributes must be
9486 * provided. So the else covers "fils-sk-not-all" and
9489 if (fils_sk_offload &&
9490 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9491 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9492 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9493 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9494 connect.fils_erp_username =
9495 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9496 connect.fils_erp_username_len =
9497 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9498 connect.fils_erp_realm =
9499 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9500 connect.fils_erp_realm_len =
9501 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9502 connect.fils_erp_next_seq_num =
9504 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9505 connect.fils_erp_rrk =
9506 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9507 connect.fils_erp_rrk_len =
9508 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9509 changed |= UPDATE_FILS_ERP_INFO;
9510 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9511 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9512 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9513 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9517 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
9518 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
9519 if (!nl80211_valid_auth_type(rdev, auth_type,
9520 NL80211_CMD_CONNECT))
9523 if (auth_type == NL80211_AUTHTYPE_FILS_SK &&
9524 fils_sk_offload && !(changed & UPDATE_FILS_ERP_INFO))
9527 connect.auth_type = auth_type;
9528 changed |= UPDATE_AUTH_TYPE;
9531 wdev_lock(dev->ieee80211_ptr);
9532 if (!wdev->current_bss)
9535 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
9536 wdev_unlock(dev->ieee80211_ptr);
9541 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
9543 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9544 struct net_device *dev = info->user_ptr[1];
9548 if (dev->ieee80211_ptr->conn_owner_nlportid &&
9549 dev->ieee80211_ptr->conn_owner_nlportid != info->snd_portid)
9552 if (!info->attrs[NL80211_ATTR_REASON_CODE])
9553 reason = WLAN_REASON_DEAUTH_LEAVING;
9555 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
9560 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9561 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9564 wdev_lock(dev->ieee80211_ptr);
9565 ret = cfg80211_disconnect(rdev, dev, reason, true);
9566 wdev_unlock(dev->ieee80211_ptr);
9570 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
9572 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9576 if (info->attrs[NL80211_ATTR_PID]) {
9577 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
9579 net = get_net_ns_by_pid(pid);
9580 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
9581 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
9583 net = get_net_ns_by_fd(fd);
9589 return PTR_ERR(net);
9593 /* check if anything to do */
9594 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9595 err = cfg80211_switch_netns(rdev, net);
9601 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9604 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9605 struct cfg80211_pmksa *pmksa) = NULL;
9606 struct net_device *dev = info->user_ptr[1];
9607 struct cfg80211_pmksa pmksa;
9609 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9611 if (!info->attrs[NL80211_ATTR_PMKID])
9614 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
9616 if (info->attrs[NL80211_ATTR_MAC]) {
9617 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9618 } else if (info->attrs[NL80211_ATTR_SSID] &&
9619 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
9620 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
9621 info->attrs[NL80211_ATTR_PMK])) {
9622 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9623 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9625 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
9629 if (info->attrs[NL80211_ATTR_PMK]) {
9630 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
9631 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
9634 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9635 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9638 switch (info->genlhdr->cmd) {
9639 case NL80211_CMD_SET_PMKSA:
9640 rdev_ops = rdev->ops->set_pmksa;
9642 case NL80211_CMD_DEL_PMKSA:
9643 rdev_ops = rdev->ops->del_pmksa;
9653 return rdev_ops(&rdev->wiphy, dev, &pmksa);
9656 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9659 struct net_device *dev = info->user_ptr[1];
9661 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9662 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9665 if (!rdev->ops->flush_pmksa)
9668 return rdev_flush_pmksa(rdev, dev);
9671 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9674 struct net_device *dev = info->user_ptr[1];
9675 u8 action_code, dialog_token;
9676 u32 peer_capability = 0;
9681 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9682 !rdev->ops->tdls_mgmt)
9685 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9686 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9687 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9688 !info->attrs[NL80211_ATTR_IE] ||
9689 !info->attrs[NL80211_ATTR_MAC])
9692 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9693 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9694 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9695 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
9696 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
9697 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9699 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
9701 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
9702 dialog_token, status_code, peer_capability,
9704 nla_data(info->attrs[NL80211_ATTR_IE]),
9705 nla_len(info->attrs[NL80211_ATTR_IE]));
9708 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9710 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9711 struct net_device *dev = info->user_ptr[1];
9712 enum nl80211_tdls_operation operation;
9715 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9716 !rdev->ops->tdls_oper)
9719 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9720 !info->attrs[NL80211_ATTR_MAC])
9723 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9724 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9726 return rdev_tdls_oper(rdev, dev, peer, operation);
9729 static int nl80211_remain_on_channel(struct sk_buff *skb,
9730 struct genl_info *info)
9732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9733 struct wireless_dev *wdev = info->user_ptr[1];
9734 struct cfg80211_chan_def chandef;
9735 const struct cfg80211_chan_def *compat_chandef;
9736 struct sk_buff *msg;
9742 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9743 !info->attrs[NL80211_ATTR_DURATION])
9746 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9748 if (!rdev->ops->remain_on_channel ||
9749 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9753 * We should be on that channel for at least a minimum amount of
9754 * time (10ms) but no longer than the driver supports.
9756 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9757 duration > rdev->wiphy.max_remain_on_channel_duration)
9760 err = nl80211_parse_chandef(rdev, info, &chandef);
9765 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9766 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9767 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9769 if (compat_chandef != &chandef) {
9776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9780 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9781 NL80211_CMD_REMAIN_ON_CHANNEL);
9787 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9793 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9795 goto nla_put_failure;
9797 genlmsg_end(msg, hdr);
9799 return genlmsg_reply(msg, info);
9808 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9809 struct genl_info *info)
9811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9812 struct wireless_dev *wdev = info->user_ptr[1];
9815 if (!info->attrs[NL80211_ATTR_COOKIE])
9818 if (!rdev->ops->cancel_remain_on_channel)
9821 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9823 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9826 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9827 struct genl_info *info)
9829 struct cfg80211_bitrate_mask mask;
9830 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9831 struct net_device *dev = info->user_ptr[1];
9834 if (!rdev->ops->set_bitrate_mask)
9837 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9841 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
9844 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
9846 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9847 struct wireless_dev *wdev = info->user_ptr[1];
9848 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
9850 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9853 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9854 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
9856 switch (wdev->iftype) {
9857 case NL80211_IFTYPE_STATION:
9858 case NL80211_IFTYPE_ADHOC:
9859 case NL80211_IFTYPE_P2P_CLIENT:
9860 case NL80211_IFTYPE_AP:
9861 case NL80211_IFTYPE_AP_VLAN:
9862 case NL80211_IFTYPE_MESH_POINT:
9863 case NL80211_IFTYPE_P2P_GO:
9864 case NL80211_IFTYPE_P2P_DEVICE:
9866 case NL80211_IFTYPE_NAN:
9871 /* not much point in registering if we can't reply */
9872 if (!rdev->ops->mgmt_tx)
9875 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
9876 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9877 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
9880 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
9882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9883 struct wireless_dev *wdev = info->user_ptr[1];
9884 struct cfg80211_chan_def chandef;
9888 struct sk_buff *msg = NULL;
9889 struct cfg80211_mgmt_tx_params params = {
9890 .dont_wait_for_ack =
9891 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9894 if (!info->attrs[NL80211_ATTR_FRAME])
9897 if (!rdev->ops->mgmt_tx)
9900 switch (wdev->iftype) {
9901 case NL80211_IFTYPE_P2P_DEVICE:
9902 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9904 case NL80211_IFTYPE_STATION:
9905 case NL80211_IFTYPE_ADHOC:
9906 case NL80211_IFTYPE_P2P_CLIENT:
9907 case NL80211_IFTYPE_AP:
9908 case NL80211_IFTYPE_AP_VLAN:
9909 case NL80211_IFTYPE_MESH_POINT:
9910 case NL80211_IFTYPE_P2P_GO:
9912 case NL80211_IFTYPE_NAN:
9917 if (info->attrs[NL80211_ATTR_DURATION]) {
9918 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9920 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9923 * We should wait on the channel for at least a minimum amount
9924 * of time (10ms) but no longer than the driver supports.
9926 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9927 params.wait > rdev->wiphy.max_remain_on_channel_duration)
9931 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
9933 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9936 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
9938 /* get the channel if any has been specified, otherwise pass NULL to
9939 * the driver. The latter will use the current one
9941 chandef.chan = NULL;
9942 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9943 err = nl80211_parse_chandef(rdev, info, &chandef);
9948 if (!chandef.chan && params.offchan)
9952 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
9958 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9959 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9961 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9962 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9965 if (len % sizeof(u16))
9968 params.n_csa_offsets = len / sizeof(u16);
9969 params.csa_offsets =
9970 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9972 /* check that all the offsets fit the frame */
9973 for (i = 0; i < params.n_csa_offsets; i++) {
9974 if (params.csa_offsets[i] >= params.len)
9979 if (!params.dont_wait_for_ack) {
9980 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9984 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9992 params.chan = chandef.chan;
9993 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
9998 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10000 goto nla_put_failure;
10002 genlmsg_end(msg, hdr);
10003 return genlmsg_reply(msg, info);
10015 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
10017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10018 struct wireless_dev *wdev = info->user_ptr[1];
10021 if (!info->attrs[NL80211_ATTR_COOKIE])
10024 if (!rdev->ops->mgmt_tx_cancel_wait)
10025 return -EOPNOTSUPP;
10027 switch (wdev->iftype) {
10028 case NL80211_IFTYPE_STATION:
10029 case NL80211_IFTYPE_ADHOC:
10030 case NL80211_IFTYPE_P2P_CLIENT:
10031 case NL80211_IFTYPE_AP:
10032 case NL80211_IFTYPE_AP_VLAN:
10033 case NL80211_IFTYPE_P2P_GO:
10034 case NL80211_IFTYPE_P2P_DEVICE:
10036 case NL80211_IFTYPE_NAN:
10038 return -EOPNOTSUPP;
10041 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
10043 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
10046 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
10048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10049 struct wireless_dev *wdev;
10050 struct net_device *dev = info->user_ptr[1];
10055 if (!info->attrs[NL80211_ATTR_PS_STATE])
10058 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
10060 wdev = dev->ieee80211_ptr;
10062 if (!rdev->ops->set_power_mgmt)
10063 return -EOPNOTSUPP;
10065 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
10067 if (state == wdev->ps)
10070 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
10076 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
10078 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10079 enum nl80211_ps_state ps_state;
10080 struct wireless_dev *wdev;
10081 struct net_device *dev = info->user_ptr[1];
10082 struct sk_buff *msg;
10086 wdev = dev->ieee80211_ptr;
10088 if (!rdev->ops->set_power_mgmt)
10089 return -EOPNOTSUPP;
10091 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10095 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10096 NL80211_CMD_GET_POWER_SAVE);
10103 ps_state = NL80211_PS_ENABLED;
10105 ps_state = NL80211_PS_DISABLED;
10107 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
10108 goto nla_put_failure;
10110 genlmsg_end(msg, hdr);
10111 return genlmsg_reply(msg, info);
10120 static const struct nla_policy
10121 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
10122 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
10123 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
10124 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
10125 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
10126 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
10127 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
10128 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
10131 static int nl80211_set_cqm_txe(struct genl_info *info,
10132 u32 rate, u32 pkts, u32 intvl)
10134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10135 struct net_device *dev = info->user_ptr[1];
10136 struct wireless_dev *wdev = dev->ieee80211_ptr;
10138 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
10141 if (!rdev->ops->set_cqm_txe_config)
10142 return -EOPNOTSUPP;
10144 if (wdev->iftype != NL80211_IFTYPE_STATION &&
10145 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
10146 return -EOPNOTSUPP;
10148 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
10151 static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
10152 struct net_device *dev)
10154 struct wireless_dev *wdev = dev->ieee80211_ptr;
10155 s32 last, low, high;
10157 int i, n, low_index;
10160 /* RSSI reporting disabled? */
10161 if (!wdev->cqm_config)
10162 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
10165 * Obtain current RSSI value if possible, if not and no RSSI threshold
10166 * event has been received yet, we should receive an event after a
10167 * connection is established and enough beacons received to calculate
10170 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
10171 rdev->ops->get_station) {
10172 struct station_info sinfo = {};
10175 mac_addr = wdev->current_bss->pub.bssid;
10177 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
10181 if (sinfo.filled & BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
10182 wdev->cqm_config->last_rssi_event_value =
10183 (s8) sinfo.rx_beacon_signal_avg;
10186 last = wdev->cqm_config->last_rssi_event_value;
10187 hyst = wdev->cqm_config->rssi_hyst;
10188 n = wdev->cqm_config->n_rssi_thresholds;
10190 for (i = 0; i < n; i++)
10191 if (last < wdev->cqm_config->rssi_thresholds[i])
10195 if (low_index >= 0) {
10196 low_index = array_index_nospec(low_index, n);
10197 low = wdev->cqm_config->rssi_thresholds[low_index] - hyst;
10202 i = array_index_nospec(i, n);
10203 high = wdev->cqm_config->rssi_thresholds[i] + hyst - 1;
10208 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
10211 static int nl80211_set_cqm_rssi(struct genl_info *info,
10212 const s32 *thresholds, int n_thresholds,
10215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10216 struct net_device *dev = info->user_ptr[1];
10217 struct wireless_dev *wdev = dev->ieee80211_ptr;
10219 s32 prev = S32_MIN;
10221 /* Check all values negative and sorted */
10222 for (i = 0; i < n_thresholds; i++) {
10223 if (thresholds[i] > 0 || thresholds[i] <= prev)
10226 prev = thresholds[i];
10229 if (wdev->iftype != NL80211_IFTYPE_STATION &&
10230 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
10231 return -EOPNOTSUPP;
10234 cfg80211_cqm_config_free(wdev);
10237 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
10238 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
10239 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
10241 return rdev_set_cqm_rssi_config(rdev, dev,
10242 thresholds[0], hysteresis);
10245 if (!wiphy_ext_feature_isset(&rdev->wiphy,
10246 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
10247 return -EOPNOTSUPP;
10249 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
10253 if (n_thresholds) {
10254 struct cfg80211_cqm_config *cqm_config;
10256 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
10257 n_thresholds * sizeof(s32), GFP_KERNEL);
10263 cqm_config->rssi_hyst = hysteresis;
10264 cqm_config->n_rssi_thresholds = n_thresholds;
10265 memcpy(cqm_config->rssi_thresholds, thresholds,
10266 n_thresholds * sizeof(s32));
10268 wdev->cqm_config = cqm_config;
10271 err = cfg80211_cqm_rssi_update(rdev, dev);
10279 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
10281 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
10282 struct nlattr *cqm;
10285 cqm = info->attrs[NL80211_ATTR_CQM];
10289 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
10290 nl80211_attr_cqm_policy, info->extack);
10294 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
10295 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
10296 const s32 *thresholds =
10297 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
10298 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
10299 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
10304 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
10308 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
10309 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
10310 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
10311 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
10312 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
10313 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
10315 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
10321 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
10323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10324 struct net_device *dev = info->user_ptr[1];
10325 struct ocb_setup setup = {};
10328 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10332 return cfg80211_join_ocb(rdev, dev, &setup);
10335 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
10337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10338 struct net_device *dev = info->user_ptr[1];
10340 return cfg80211_leave_ocb(rdev, dev);
10343 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
10345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10346 struct net_device *dev = info->user_ptr[1];
10347 struct mesh_config cfg;
10348 struct mesh_setup setup;
10351 /* start with default */
10352 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
10353 memcpy(&setup, &default_mesh_setup, sizeof(setup));
10355 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
10356 /* and parse parameters if given */
10357 err = nl80211_parse_mesh_config(info, &cfg, NULL);
10362 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
10363 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
10366 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
10367 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
10369 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
10370 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
10371 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
10374 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
10375 setup.beacon_interval =
10376 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
10378 err = cfg80211_validate_beacon_int(rdev,
10379 NL80211_IFTYPE_MESH_POINT,
10380 setup.beacon_interval);
10385 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
10386 setup.dtim_period =
10387 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
10388 if (setup.dtim_period < 1 || setup.dtim_period > 100)
10392 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
10393 /* parse additional setup parameters if given */
10394 err = nl80211_parse_mesh_setup(info, &setup);
10399 if (setup.user_mpm)
10400 cfg.auto_open_plinks = false;
10402 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
10403 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
10407 /* __cfg80211_join_mesh() will sort it out */
10408 setup.chandef.chan = NULL;
10411 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
10412 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10414 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
10415 struct ieee80211_supported_band *sband;
10417 if (!setup.chandef.chan)
10420 sband = rdev->wiphy.bands[setup.chandef.chan->band];
10422 err = ieee80211_get_ratemask(sband, rates, n_rates,
10423 &setup.basic_rates);
10428 if (info->attrs[NL80211_ATTR_TX_RATES]) {
10429 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
10433 if (!setup.chandef.chan)
10436 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
10437 &setup.beacon_rate);
10442 setup.userspace_handles_dfs =
10443 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
10445 if (info->attrs[NL80211_ATTR_CONTROL_PORT_OVER_NL80211]) {
10446 int r = validate_pae_over_nl80211(rdev, info);
10451 setup.control_port_over_nl80211 = true;
10454 wdev_lock(dev->ieee80211_ptr);
10455 err = __cfg80211_join_mesh(rdev, dev, &setup, &cfg);
10456 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER])
10457 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
10458 wdev_unlock(dev->ieee80211_ptr);
10463 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
10465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10466 struct net_device *dev = info->user_ptr[1];
10468 return cfg80211_leave_mesh(rdev, dev);
10472 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
10473 struct cfg80211_registered_device *rdev)
10475 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
10476 struct nlattr *nl_pats, *nl_pat;
10479 if (!wowlan->n_patterns)
10482 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
10486 for (i = 0; i < wowlan->n_patterns; i++) {
10487 nl_pat = nla_nest_start(msg, i + 1);
10490 pat_len = wowlan->patterns[i].pattern_len;
10491 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
10492 wowlan->patterns[i].mask) ||
10493 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10494 wowlan->patterns[i].pattern) ||
10495 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10496 wowlan->patterns[i].pkt_offset))
10498 nla_nest_end(msg, nl_pat);
10500 nla_nest_end(msg, nl_pats);
10505 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
10506 struct cfg80211_wowlan_tcp *tcp)
10508 struct nlattr *nl_tcp;
10513 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
10517 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
10518 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
10519 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
10520 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
10521 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
10522 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
10523 tcp->payload_len, tcp->payload) ||
10524 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
10525 tcp->data_interval) ||
10526 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
10527 tcp->wake_len, tcp->wake_data) ||
10528 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
10529 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
10532 if (tcp->payload_seq.len &&
10533 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
10534 sizeof(tcp->payload_seq), &tcp->payload_seq))
10537 if (tcp->payload_tok.len &&
10538 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
10539 sizeof(tcp->payload_tok) + tcp->tokens_size,
10540 &tcp->payload_tok))
10543 nla_nest_end(msg, nl_tcp);
10548 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
10549 struct cfg80211_sched_scan_request *req)
10551 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
10557 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
10561 if (req->n_scan_plans == 1 &&
10562 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
10563 req->scan_plans[0].interval * 1000))
10566 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
10569 if (req->relative_rssi_set) {
10570 struct nl80211_bss_select_rssi_adjust rssi_adjust;
10572 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
10573 req->relative_rssi))
10576 rssi_adjust.band = req->rssi_adjust.band;
10577 rssi_adjust.delta = req->rssi_adjust.delta;
10578 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
10579 sizeof(rssi_adjust), &rssi_adjust))
10583 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10587 for (i = 0; i < req->n_channels; i++) {
10588 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10592 nla_nest_end(msg, freqs);
10594 if (req->n_match_sets) {
10595 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
10599 for (i = 0; i < req->n_match_sets; i++) {
10600 match = nla_nest_start(msg, i);
10604 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
10605 req->match_sets[i].ssid.ssid_len,
10606 req->match_sets[i].ssid.ssid))
10608 nla_nest_end(msg, match);
10610 nla_nest_end(msg, matches);
10613 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
10617 for (i = 0; i < req->n_scan_plans; i++) {
10618 scan_plan = nla_nest_start(msg, i + 1);
10622 if (nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10623 req->scan_plans[i].interval) ||
10624 (req->scan_plans[i].iterations &&
10625 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10626 req->scan_plans[i].iterations)))
10628 nla_nest_end(msg, scan_plan);
10630 nla_nest_end(msg, scan_plans);
10632 nla_nest_end(msg, nd);
10637 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10640 struct sk_buff *msg;
10642 u32 size = NLMSG_DEFAULT_SIZE;
10644 if (!rdev->wiphy.wowlan)
10645 return -EOPNOTSUPP;
10647 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
10648 /* adjust size to have room for all the data */
10649 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10650 rdev->wiphy.wowlan_config->tcp->payload_len +
10651 rdev->wiphy.wowlan_config->tcp->wake_len +
10652 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
10655 msg = nlmsg_new(size, GFP_KERNEL);
10659 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10660 NL80211_CMD_GET_WOWLAN);
10662 goto nla_put_failure;
10664 if (rdev->wiphy.wowlan_config) {
10665 struct nlattr *nl_wowlan;
10667 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10669 goto nla_put_failure;
10671 if ((rdev->wiphy.wowlan_config->any &&
10672 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
10673 (rdev->wiphy.wowlan_config->disconnect &&
10674 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
10675 (rdev->wiphy.wowlan_config->magic_pkt &&
10676 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
10677 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
10678 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
10679 (rdev->wiphy.wowlan_config->eap_identity_req &&
10680 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
10681 (rdev->wiphy.wowlan_config->four_way_handshake &&
10682 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
10683 (rdev->wiphy.wowlan_config->rfkill_release &&
10684 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10685 goto nla_put_failure;
10687 if (nl80211_send_wowlan_patterns(msg, rdev))
10688 goto nla_put_failure;
10690 if (nl80211_send_wowlan_tcp(msg,
10691 rdev->wiphy.wowlan_config->tcp))
10692 goto nla_put_failure;
10694 if (nl80211_send_wowlan_nd(
10696 rdev->wiphy.wowlan_config->nd_config))
10697 goto nla_put_failure;
10699 nla_nest_end(msg, nl_wowlan);
10702 genlmsg_end(msg, hdr);
10703 return genlmsg_reply(msg, info);
10710 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10711 struct nlattr *attr,
10712 struct cfg80211_wowlan *trig)
10714 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10715 struct cfg80211_wowlan_tcp *cfg;
10716 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10717 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10719 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10722 if (!rdev->wiphy.wowlan->tcp)
10725 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
10726 nl80211_wowlan_tcp_policy, NULL);
10730 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10731 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10732 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10733 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10734 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10735 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10736 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10737 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10740 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
10741 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
10744 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
10745 rdev->wiphy.wowlan->tcp->data_interval_max ||
10746 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
10749 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
10750 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
10753 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10754 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10757 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10758 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10760 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10761 tokens_size = tokln - sizeof(*tok);
10763 if (!tok->len || tokens_size % tok->len)
10765 if (!rdev->wiphy.wowlan->tcp->tok)
10767 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
10769 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
10771 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
10773 if (tok->offset + tok->len > data_size)
10777 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10778 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
10779 if (!rdev->wiphy.wowlan->tcp->seq)
10781 if (seq->len == 0 || seq->len > 4)
10783 if (seq->len + seq->offset > data_size)
10787 size = sizeof(*cfg);
10789 size += wake_size + wake_mask_size;
10790 size += tokens_size;
10792 cfg = kzalloc(size, GFP_KERNEL);
10795 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10796 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
10797 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10799 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10800 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10804 /* allocate a socket and port for it and use it */
10805 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10806 IPPROTO_TCP, &cfg->sock, 1);
10811 if (inet_csk_get_port(cfg->sock->sk, port)) {
10812 sock_release(cfg->sock);
10814 return -EADDRINUSE;
10816 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10822 cfg->src_port = port;
10825 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10826 cfg->payload_len = data_size;
10827 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10828 memcpy((void *)cfg->payload,
10829 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10832 cfg->payload_seq = *seq;
10833 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10834 cfg->wake_len = wake_size;
10835 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10836 memcpy((void *)cfg->wake_data,
10837 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10839 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10840 data_size + wake_size;
10841 memcpy((void *)cfg->wake_mask,
10842 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10845 cfg->tokens_size = tokens_size;
10846 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10854 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10855 const struct wiphy_wowlan_support *wowlan,
10856 struct nlattr *attr,
10857 struct cfg80211_wowlan *trig)
10859 struct nlattr **tb;
10862 tb = kcalloc(NUM_NL80211_ATTR, sizeof(*tb), GFP_KERNEL);
10866 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10871 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10876 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10877 wowlan->max_nd_match_sets);
10878 err = PTR_ERR_OR_ZERO(trig->nd_config);
10880 trig->nd_config = NULL;
10887 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10890 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
10891 struct cfg80211_wowlan new_triggers = {};
10892 struct cfg80211_wowlan *ntrig;
10893 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
10895 bool prev_enabled = rdev->wiphy.wowlan_config;
10896 bool regular = false;
10899 return -EOPNOTSUPP;
10901 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10902 cfg80211_rdev_free_wowlan(rdev);
10903 rdev->wiphy.wowlan_config = NULL;
10907 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10908 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
10909 nl80211_wowlan_policy, info->extack);
10913 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10914 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10916 new_triggers.any = true;
10919 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10920 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10922 new_triggers.disconnect = true;
10926 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10927 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10929 new_triggers.magic_pkt = true;
10933 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10936 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10937 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10939 new_triggers.gtk_rekey_failure = true;
10943 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10944 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10946 new_triggers.eap_identity_req = true;
10950 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10951 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10953 new_triggers.four_way_handshake = true;
10957 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10958 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10960 new_triggers.rfkill_release = true;
10964 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10965 struct nlattr *pat;
10966 int n_patterns = 0;
10967 int rem, pat_len, mask_len, pkt_offset;
10968 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10972 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10975 if (n_patterns > wowlan->n_patterns)
10978 new_triggers.patterns = kcalloc(n_patterns,
10979 sizeof(new_triggers.patterns[0]),
10981 if (!new_triggers.patterns)
10984 new_triggers.n_patterns = n_patterns;
10987 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10991 err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10992 nl80211_packet_pattern_policy,
10998 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10999 !pat_tb[NL80211_PKTPAT_PATTERN])
11001 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
11002 mask_len = DIV_ROUND_UP(pat_len, 8);
11003 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
11005 if (pat_len > wowlan->pattern_max_len ||
11006 pat_len < wowlan->pattern_min_len)
11009 if (!pat_tb[NL80211_PKTPAT_OFFSET])
11012 pkt_offset = nla_get_u32(
11013 pat_tb[NL80211_PKTPAT_OFFSET]);
11014 if (pkt_offset > wowlan->max_pkt_offset)
11016 new_triggers.patterns[i].pkt_offset = pkt_offset;
11018 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
11023 new_triggers.patterns[i].mask = mask_pat;
11024 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
11026 mask_pat += mask_len;
11027 new_triggers.patterns[i].pattern = mask_pat;
11028 new_triggers.patterns[i].pattern_len = pat_len;
11030 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
11036 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
11038 err = nl80211_parse_wowlan_tcp(
11039 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
11045 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
11047 err = nl80211_parse_wowlan_nd(
11048 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
11054 /* The 'any' trigger means the device continues operating more or less
11055 * as in its normal operation mode and wakes up the host on most of the
11056 * normal interrupts (like packet RX, ...)
11057 * It therefore makes little sense to combine with the more constrained
11058 * wakeup trigger modes.
11060 if (new_triggers.any && regular) {
11065 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
11070 cfg80211_rdev_free_wowlan(rdev);
11071 rdev->wiphy.wowlan_config = ntrig;
11074 if (rdev->ops->set_wakeup &&
11075 prev_enabled != !!rdev->wiphy.wowlan_config)
11076 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
11080 for (i = 0; i < new_triggers.n_patterns; i++)
11081 kfree(new_triggers.patterns[i].mask);
11082 kfree(new_triggers.patterns);
11083 if (new_triggers.tcp && new_triggers.tcp->sock)
11084 sock_release(new_triggers.tcp->sock);
11085 kfree(new_triggers.tcp);
11086 kfree(new_triggers.nd_config);
11091 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
11092 struct cfg80211_registered_device *rdev)
11094 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
11096 struct cfg80211_coalesce_rules *rule;
11098 if (!rdev->coalesce->n_rules)
11101 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
11105 for (i = 0; i < rdev->coalesce->n_rules; i++) {
11106 nl_rule = nla_nest_start(msg, i + 1);
11110 rule = &rdev->coalesce->rules[i];
11111 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
11115 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
11119 nl_pats = nla_nest_start(msg,
11120 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
11124 for (j = 0; j < rule->n_patterns; j++) {
11125 nl_pat = nla_nest_start(msg, j + 1);
11128 pat_len = rule->patterns[j].pattern_len;
11129 if (nla_put(msg, NL80211_PKTPAT_MASK,
11130 DIV_ROUND_UP(pat_len, 8),
11131 rule->patterns[j].mask) ||
11132 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
11133 rule->patterns[j].pattern) ||
11134 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
11135 rule->patterns[j].pkt_offset))
11137 nla_nest_end(msg, nl_pat);
11139 nla_nest_end(msg, nl_pats);
11140 nla_nest_end(msg, nl_rule);
11142 nla_nest_end(msg, nl_rules);
11147 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
11149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11150 struct sk_buff *msg;
11153 if (!rdev->wiphy.coalesce)
11154 return -EOPNOTSUPP;
11156 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11160 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11161 NL80211_CMD_GET_COALESCE);
11163 goto nla_put_failure;
11165 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
11166 goto nla_put_failure;
11168 genlmsg_end(msg, hdr);
11169 return genlmsg_reply(msg, info);
11176 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
11178 struct cfg80211_coalesce *coalesce = rdev->coalesce;
11180 struct cfg80211_coalesce_rules *rule;
11185 for (i = 0; i < coalesce->n_rules; i++) {
11186 rule = &coalesce->rules[i];
11187 for (j = 0; j < rule->n_patterns; j++)
11188 kfree(rule->patterns[j].mask);
11189 kfree(rule->patterns);
11191 kfree(coalesce->rules);
11193 rdev->coalesce = NULL;
11196 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
11197 struct nlattr *rule,
11198 struct cfg80211_coalesce_rules *new_rule)
11201 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
11202 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
11203 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
11204 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
11206 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
11207 nl80211_coalesce_policy, NULL);
11211 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
11213 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
11214 if (new_rule->delay > coalesce->max_delay)
11217 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
11218 new_rule->condition =
11219 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
11221 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
11224 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
11227 if (n_patterns > coalesce->n_patterns)
11230 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
11232 if (!new_rule->patterns)
11235 new_rule->n_patterns = n_patterns;
11238 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
11242 err = nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
11243 nl80211_packet_pattern_policy, NULL);
11247 if (!pat_tb[NL80211_PKTPAT_MASK] ||
11248 !pat_tb[NL80211_PKTPAT_PATTERN])
11250 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
11251 mask_len = DIV_ROUND_UP(pat_len, 8);
11252 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
11254 if (pat_len > coalesce->pattern_max_len ||
11255 pat_len < coalesce->pattern_min_len)
11258 if (!pat_tb[NL80211_PKTPAT_OFFSET])
11261 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
11262 if (pkt_offset > coalesce->max_pkt_offset)
11264 new_rule->patterns[i].pkt_offset = pkt_offset;
11266 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
11270 new_rule->patterns[i].mask = mask_pat;
11271 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
11274 mask_pat += mask_len;
11275 new_rule->patterns[i].pattern = mask_pat;
11276 new_rule->patterns[i].pattern_len = pat_len;
11277 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
11285 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
11287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11288 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
11289 struct cfg80211_coalesce new_coalesce = {};
11290 struct cfg80211_coalesce *n_coalesce;
11291 int err, rem_rule, n_rules = 0, i, j;
11292 struct nlattr *rule;
11293 struct cfg80211_coalesce_rules *tmp_rule;
11295 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
11296 return -EOPNOTSUPP;
11298 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
11299 cfg80211_rdev_free_coalesce(rdev);
11300 rdev_set_coalesce(rdev, NULL);
11304 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
11307 if (n_rules > coalesce->n_rules)
11310 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
11312 if (!new_coalesce.rules)
11315 new_coalesce.n_rules = n_rules;
11318 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
11320 err = nl80211_parse_coalesce_rule(rdev, rule,
11321 &new_coalesce.rules[i]);
11328 err = rdev_set_coalesce(rdev, &new_coalesce);
11332 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
11337 cfg80211_rdev_free_coalesce(rdev);
11338 rdev->coalesce = n_coalesce;
11342 for (i = 0; i < new_coalesce.n_rules; i++) {
11343 tmp_rule = &new_coalesce.rules[i];
11344 for (j = 0; j < tmp_rule->n_patterns; j++)
11345 kfree(tmp_rule->patterns[j].mask);
11346 kfree(tmp_rule->patterns);
11348 kfree(new_coalesce.rules);
11353 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
11355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11356 struct net_device *dev = info->user_ptr[1];
11357 struct wireless_dev *wdev = dev->ieee80211_ptr;
11358 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
11359 struct cfg80211_gtk_rekey_data rekey_data;
11362 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
11365 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
11366 info->attrs[NL80211_ATTR_REKEY_DATA],
11367 nl80211_rekey_policy, info->extack);
11371 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
11372 !tb[NL80211_REKEY_DATA_KCK])
11374 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
11376 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
11378 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
11381 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
11382 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
11383 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
11386 if (!wdev->current_bss) {
11391 if (!rdev->ops->set_rekey_data) {
11396 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
11402 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
11403 struct genl_info *info)
11405 struct net_device *dev = info->user_ptr[1];
11406 struct wireless_dev *wdev = dev->ieee80211_ptr;
11408 if (wdev->iftype != NL80211_IFTYPE_AP &&
11409 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11412 if (wdev->ap_unexpected_nlportid)
11415 wdev->ap_unexpected_nlportid = info->snd_portid;
11419 static int nl80211_probe_client(struct sk_buff *skb,
11420 struct genl_info *info)
11422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11423 struct net_device *dev = info->user_ptr[1];
11424 struct wireless_dev *wdev = dev->ieee80211_ptr;
11425 struct sk_buff *msg;
11431 if (wdev->iftype != NL80211_IFTYPE_AP &&
11432 wdev->iftype != NL80211_IFTYPE_P2P_GO)
11433 return -EOPNOTSUPP;
11435 if (!info->attrs[NL80211_ATTR_MAC])
11438 if (!rdev->ops->probe_client)
11439 return -EOPNOTSUPP;
11441 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11445 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11446 NL80211_CMD_PROBE_CLIENT);
11452 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11454 err = rdev_probe_client(rdev, dev, addr, &cookie);
11458 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11460 goto nla_put_failure;
11462 genlmsg_end(msg, hdr);
11464 return genlmsg_reply(msg, info);
11473 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
11475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11476 struct cfg80211_beacon_registration *reg, *nreg;
11479 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
11480 return -EOPNOTSUPP;
11482 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
11486 /* First, check if already registered. */
11487 spin_lock_bh(&rdev->beacon_registrations_lock);
11488 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11489 if (reg->nlportid == info->snd_portid) {
11494 /* Add it to the list */
11495 nreg->nlportid = info->snd_portid;
11496 list_add(&nreg->list, &rdev->beacon_registrations);
11498 spin_unlock_bh(&rdev->beacon_registrations_lock);
11502 spin_unlock_bh(&rdev->beacon_registrations_lock);
11507 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
11509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11510 struct wireless_dev *wdev = info->user_ptr[1];
11513 if (!rdev->ops->start_p2p_device)
11514 return -EOPNOTSUPP;
11516 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11517 return -EOPNOTSUPP;
11519 if (wdev_running(wdev))
11522 if (rfkill_blocked(rdev->rfkill))
11525 err = rdev_start_p2p_device(rdev, wdev);
11529 wdev->is_running = true;
11535 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
11537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11538 struct wireless_dev *wdev = info->user_ptr[1];
11540 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11541 return -EOPNOTSUPP;
11543 if (!rdev->ops->stop_p2p_device)
11544 return -EOPNOTSUPP;
11546 cfg80211_stop_p2p_device(rdev, wdev);
11551 static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
11553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11554 struct wireless_dev *wdev = info->user_ptr[1];
11555 struct cfg80211_nan_conf conf = {};
11558 if (wdev->iftype != NL80211_IFTYPE_NAN)
11559 return -EOPNOTSUPP;
11561 if (wdev_running(wdev))
11564 if (rfkill_blocked(rdev->rfkill))
11567 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
11571 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11573 if (info->attrs[NL80211_ATTR_BANDS]) {
11574 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11576 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11577 return -EOPNOTSUPP;
11579 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11582 conf.bands = bands;
11585 err = rdev_start_nan(rdev, wdev, &conf);
11589 wdev->is_running = true;
11595 static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
11597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11598 struct wireless_dev *wdev = info->user_ptr[1];
11600 if (wdev->iftype != NL80211_IFTYPE_NAN)
11601 return -EOPNOTSUPP;
11603 cfg80211_stop_nan(rdev, wdev);
11608 static int validate_nan_filter(struct nlattr *filter_attr)
11610 struct nlattr *attr;
11611 int len = 0, n_entries = 0, rem;
11613 nla_for_each_nested(attr, filter_attr, rem) {
11614 len += nla_len(attr);
11624 static int handle_nan_filter(struct nlattr *attr_filter,
11625 struct cfg80211_nan_func *func,
11628 struct nlattr *attr;
11629 int n_entries, rem, i;
11630 struct cfg80211_nan_func_filter *filter;
11632 n_entries = validate_nan_filter(attr_filter);
11636 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11638 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11643 nla_for_each_nested(attr, attr_filter, rem) {
11644 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
11645 filter[i].len = nla_len(attr);
11649 func->num_tx_filters = n_entries;
11650 func->tx_filters = filter;
11652 func->num_rx_filters = n_entries;
11653 func->rx_filters = filter;
11659 static int nl80211_nan_add_func(struct sk_buff *skb,
11660 struct genl_info *info)
11662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11663 struct wireless_dev *wdev = info->user_ptr[1];
11664 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11665 struct cfg80211_nan_func *func;
11666 struct sk_buff *msg = NULL;
11670 if (wdev->iftype != NL80211_IFTYPE_NAN)
11671 return -EOPNOTSUPP;
11673 if (!wdev_running(wdev))
11676 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11679 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11680 info->attrs[NL80211_ATTR_NAN_FUNC],
11681 nl80211_nan_func_policy, info->extack);
11685 func = kzalloc(sizeof(*func), GFP_KERNEL);
11689 func->cookie = cfg80211_assign_cookie(rdev);
11691 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11692 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11698 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11700 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11705 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11706 sizeof(func->service_id));
11708 func->close_range =
11709 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11711 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11712 func->serv_spec_info_len =
11713 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11714 func->serv_spec_info =
11715 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11716 func->serv_spec_info_len,
11718 if (!func->serv_spec_info) {
11724 if (tb[NL80211_NAN_FUNC_TTL])
11725 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11727 switch (func->type) {
11728 case NL80211_NAN_FUNC_PUBLISH:
11729 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11734 func->publish_type =
11735 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11736 func->publish_bcast =
11737 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11739 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11740 func->publish_bcast) {
11745 case NL80211_NAN_FUNC_SUBSCRIBE:
11746 func->subscribe_active =
11747 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11749 case NL80211_NAN_FUNC_FOLLOW_UP:
11750 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
11751 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] ||
11752 !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) {
11757 func->followup_id =
11758 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11759 func->followup_reqid =
11760 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11761 memcpy(func->followup_dest.addr,
11762 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11763 sizeof(func->followup_dest.addr));
11774 if (tb[NL80211_NAN_FUNC_SRF]) {
11775 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11777 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11778 tb[NL80211_NAN_FUNC_SRF],
11779 nl80211_nan_srf_policy, info->extack);
11783 func->srf_include =
11784 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11786 if (srf_tb[NL80211_NAN_SRF_BF]) {
11787 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11788 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11794 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11796 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11797 func->srf_bf_len, GFP_KERNEL);
11798 if (!func->srf_bf) {
11804 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11806 struct nlattr *attr, *mac_attr =
11807 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11808 int n_entries, rem, i = 0;
11815 n_entries = validate_acl_mac_addrs(mac_attr);
11816 if (n_entries <= 0) {
11821 func->srf_num_macs = n_entries;
11823 kcalloc(n_entries, sizeof(*func->srf_macs),
11825 if (!func->srf_macs) {
11830 nla_for_each_nested(attr, mac_attr, rem)
11831 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11832 sizeof(*func->srf_macs));
11836 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11837 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11843 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11844 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11856 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11857 NL80211_CMD_ADD_NAN_FUNCTION);
11858 /* This can't really happen - we just allocated 4KB */
11859 if (WARN_ON(!hdr)) {
11864 err = rdev_add_nan_func(rdev, wdev, func);
11867 cfg80211_free_nan_func(func);
11872 /* propagate the instance id and cookie to userspace */
11873 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11875 goto nla_put_failure;
11877 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11879 goto nla_put_failure;
11881 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11882 func->instance_id))
11883 goto nla_put_failure;
11885 nla_nest_end(msg, func_attr);
11887 genlmsg_end(msg, hdr);
11888 return genlmsg_reply(msg, info);
11895 static int nl80211_nan_del_func(struct sk_buff *skb,
11896 struct genl_info *info)
11898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11899 struct wireless_dev *wdev = info->user_ptr[1];
11902 if (wdev->iftype != NL80211_IFTYPE_NAN)
11903 return -EOPNOTSUPP;
11905 if (!wdev_running(wdev))
11908 if (!info->attrs[NL80211_ATTR_COOKIE])
11911 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11913 rdev_del_nan_func(rdev, wdev, cookie);
11918 static int nl80211_nan_change_config(struct sk_buff *skb,
11919 struct genl_info *info)
11921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11922 struct wireless_dev *wdev = info->user_ptr[1];
11923 struct cfg80211_nan_conf conf = {};
11926 if (wdev->iftype != NL80211_IFTYPE_NAN)
11927 return -EOPNOTSUPP;
11929 if (!wdev_running(wdev))
11932 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11934 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11935 if (conf.master_pref <= 1 || conf.master_pref == 255)
11938 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11941 if (info->attrs[NL80211_ATTR_BANDS]) {
11942 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11944 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11945 return -EOPNOTSUPP;
11947 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11950 conf.bands = bands;
11951 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
11957 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11960 void cfg80211_nan_match(struct wireless_dev *wdev,
11961 struct cfg80211_nan_match_params *match, gfp_t gfp)
11963 struct wiphy *wiphy = wdev->wiphy;
11964 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11965 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11966 struct sk_buff *msg;
11969 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11976 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11982 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11983 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11984 wdev->netdev->ifindex)) ||
11985 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11987 goto nla_put_failure;
11989 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11990 NL80211_ATTR_PAD) ||
11991 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11992 goto nla_put_failure;
11994 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11996 goto nla_put_failure;
11998 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11999 if (!local_func_attr)
12000 goto nla_put_failure;
12002 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
12003 goto nla_put_failure;
12005 nla_nest_end(msg, local_func_attr);
12007 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
12008 if (!peer_func_attr)
12009 goto nla_put_failure;
12011 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
12012 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
12013 goto nla_put_failure;
12015 if (match->info && match->info_len &&
12016 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
12018 goto nla_put_failure;
12020 nla_nest_end(msg, peer_func_attr);
12021 nla_nest_end(msg, match_attr);
12022 genlmsg_end(msg, hdr);
12024 if (!wdev->owner_nlportid)
12025 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
12026 msg, 0, NL80211_MCGRP_NAN, gfp);
12028 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
12029 wdev->owner_nlportid);
12036 EXPORT_SYMBOL(cfg80211_nan_match);
12038 void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
12040 enum nl80211_nan_func_term_reason reason,
12041 u64 cookie, gfp_t gfp)
12043 struct wiphy *wiphy = wdev->wiphy;
12044 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12045 struct sk_buff *msg;
12046 struct nlattr *func_attr;
12049 if (WARN_ON(!inst_id))
12052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12056 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
12062 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12063 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12064 wdev->netdev->ifindex)) ||
12065 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12067 goto nla_put_failure;
12069 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12071 goto nla_put_failure;
12073 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
12075 goto nla_put_failure;
12077 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
12078 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
12079 goto nla_put_failure;
12081 nla_nest_end(msg, func_attr);
12082 genlmsg_end(msg, hdr);
12084 if (!wdev->owner_nlportid)
12085 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
12086 msg, 0, NL80211_MCGRP_NAN, gfp);
12088 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
12089 wdev->owner_nlportid);
12096 EXPORT_SYMBOL(cfg80211_nan_func_terminated);
12098 static int nl80211_get_protocol_features(struct sk_buff *skb,
12099 struct genl_info *info)
12102 struct sk_buff *msg;
12104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12108 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
12109 NL80211_CMD_GET_PROTOCOL_FEATURES);
12111 goto nla_put_failure;
12113 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
12114 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
12115 goto nla_put_failure;
12117 genlmsg_end(msg, hdr);
12118 return genlmsg_reply(msg, info);
12125 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
12127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12128 struct cfg80211_update_ft_ies_params ft_params;
12129 struct net_device *dev = info->user_ptr[1];
12131 if (!rdev->ops->update_ft_ies)
12132 return -EOPNOTSUPP;
12134 if (!info->attrs[NL80211_ATTR_MDID] ||
12135 !info->attrs[NL80211_ATTR_IE])
12138 memset(&ft_params, 0, sizeof(ft_params));
12139 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
12140 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
12141 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
12143 return rdev_update_ft_ies(rdev, dev, &ft_params);
12146 static int nl80211_crit_protocol_start(struct sk_buff *skb,
12147 struct genl_info *info)
12149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12150 struct wireless_dev *wdev = info->user_ptr[1];
12151 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
12155 if (!rdev->ops->crit_proto_start)
12156 return -EOPNOTSUPP;
12158 if (WARN_ON(!rdev->ops->crit_proto_stop))
12161 if (rdev->crit_proto_nlportid)
12164 /* determine protocol if provided */
12165 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
12166 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
12168 if (proto >= NUM_NL80211_CRIT_PROTO)
12171 /* timeout must be provided */
12172 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
12176 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
12178 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
12181 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
12183 rdev->crit_proto_nlportid = info->snd_portid;
12188 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
12189 struct genl_info *info)
12191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12192 struct wireless_dev *wdev = info->user_ptr[1];
12194 if (!rdev->ops->crit_proto_stop)
12195 return -EOPNOTSUPP;
12197 if (rdev->crit_proto_nlportid) {
12198 rdev->crit_proto_nlportid = 0;
12199 rdev_crit_proto_stop(rdev, wdev);
12204 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
12206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12207 struct wireless_dev *wdev =
12208 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
12212 if (!rdev->wiphy.vendor_commands)
12213 return -EOPNOTSUPP;
12215 if (IS_ERR(wdev)) {
12216 err = PTR_ERR(wdev);
12217 if (err != -EINVAL)
12220 } else if (wdev->wiphy != &rdev->wiphy) {
12224 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
12225 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
12228 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
12229 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
12230 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
12231 const struct wiphy_vendor_command *vcmd;
12235 vcmd = &rdev->wiphy.vendor_commands[i];
12237 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
12240 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
12241 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
12244 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
12248 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
12249 if (!wdev_running(wdev))
12254 return -EOPNOTSUPP;
12259 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
12260 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
12261 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
12264 rdev->cur_cmd_info = info;
12265 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
12267 rdev->cur_cmd_info = NULL;
12271 return -EOPNOTSUPP;
12274 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
12275 struct netlink_callback *cb,
12276 struct cfg80211_registered_device **rdev,
12277 struct wireless_dev **wdev)
12279 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
12285 unsigned int data_len = 0;
12288 /* subtract the 1 again here */
12289 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
12290 struct wireless_dev *tmp;
12294 *rdev = wiphy_to_rdev(wiphy);
12298 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
12299 if (tmp->identifier == cb->args[1] - 1) {
12306 /* keep rtnl locked in successful case */
12310 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
12311 nl80211_fam.maxattr, nl80211_policy, NULL);
12315 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
12316 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
12319 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
12323 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
12325 return PTR_ERR(*rdev);
12327 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
12328 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
12330 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
12331 const struct wiphy_vendor_command *vcmd;
12333 vcmd = &(*rdev)->wiphy.vendor_commands[i];
12335 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
12339 return -EOPNOTSUPP;
12346 return -EOPNOTSUPP;
12348 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
12349 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
12350 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
12353 /* 0 is the first index - add 1 to parse only once */
12354 cb->args[0] = (*rdev)->wiphy_idx + 1;
12355 /* add 1 to know if it was NULL */
12356 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
12357 cb->args[2] = vcmd_idx;
12358 cb->args[3] = (unsigned long)data;
12359 cb->args[4] = data_len;
12361 /* keep rtnl locked in successful case */
12365 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
12366 struct netlink_callback *cb)
12368 struct cfg80211_registered_device *rdev;
12369 struct wireless_dev *wdev;
12370 unsigned int vcmd_idx;
12371 const struct wiphy_vendor_command *vcmd;
12375 struct nlattr *vendor_data;
12378 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
12382 vcmd_idx = cb->args[2];
12383 data = (void *)cb->args[3];
12384 data_len = cb->args[4];
12385 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
12387 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
12388 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
12393 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
12399 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
12400 if (!wdev_running(wdev)) {
12408 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
12409 cb->nlh->nlmsg_seq, NLM_F_MULTI,
12410 NL80211_CMD_VENDOR);
12414 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12415 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
12417 NL80211_ATTR_PAD))) {
12418 genlmsg_cancel(skb, hdr);
12422 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
12423 if (!vendor_data) {
12424 genlmsg_cancel(skb, hdr);
12428 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
12429 (unsigned long *)&cb->args[5]);
12430 nla_nest_end(skb, vendor_data);
12432 if (err == -ENOBUFS || err == -ENOENT) {
12433 genlmsg_cancel(skb, hdr);
12436 genlmsg_cancel(skb, hdr);
12440 genlmsg_end(skb, hdr);
12449 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
12450 enum nl80211_commands cmd,
12451 enum nl80211_attrs attr,
12454 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12456 if (WARN_ON(!rdev->cur_cmd_info))
12459 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
12460 rdev->cur_cmd_info->snd_portid,
12461 rdev->cur_cmd_info->snd_seq,
12462 cmd, attr, NULL, GFP_KERNEL);
12464 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
12466 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
12468 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
12469 void *hdr = ((void **)skb->cb)[1];
12470 struct nlattr *data = ((void **)skb->cb)[2];
12472 /* clear CB data for netlink core to own from now on */
12473 memset(skb->cb, 0, sizeof(skb->cb));
12475 if (WARN_ON(!rdev->cur_cmd_info)) {
12480 nla_nest_end(skb, data);
12481 genlmsg_end(skb, hdr);
12482 return genlmsg_reply(skb, rdev->cur_cmd_info);
12484 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
12486 static int nl80211_set_qos_map(struct sk_buff *skb,
12487 struct genl_info *info)
12489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12490 struct cfg80211_qos_map *qos_map = NULL;
12491 struct net_device *dev = info->user_ptr[1];
12492 u8 *pos, len, num_des, des_len, des;
12495 if (!rdev->ops->set_qos_map)
12496 return -EOPNOTSUPP;
12498 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
12499 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
12500 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
12502 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
12503 len > IEEE80211_QOS_MAP_LEN_MAX)
12506 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
12510 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
12512 des_len = num_des *
12513 sizeof(struct cfg80211_dscp_exception);
12514 memcpy(qos_map->dscp_exception, pos, des_len);
12515 qos_map->num_des = num_des;
12516 for (des = 0; des < num_des; des++) {
12517 if (qos_map->dscp_exception[des].up > 7) {
12524 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
12527 wdev_lock(dev->ieee80211_ptr);
12528 ret = nl80211_key_allowed(dev->ieee80211_ptr);
12530 ret = rdev_set_qos_map(rdev, dev, qos_map);
12531 wdev_unlock(dev->ieee80211_ptr);
12537 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
12539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12540 struct net_device *dev = info->user_ptr[1];
12541 struct wireless_dev *wdev = dev->ieee80211_ptr;
12544 u16 admitted_time = 0;
12547 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
12548 return -EOPNOTSUPP;
12550 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
12551 !info->attrs[NL80211_ATTR_USER_PRIO])
12554 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12555 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
12557 /* WMM uses TIDs 0-7 even for TSPEC */
12558 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
12559 /* TODO: handle 802.11 TSPEC/admission control
12560 * need more attributes for that (e.g. BA session requirement);
12561 * change the WMM adminssion test above to allow both then
12566 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12568 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
12570 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
12571 if (!admitted_time)
12576 switch (wdev->iftype) {
12577 case NL80211_IFTYPE_STATION:
12578 case NL80211_IFTYPE_P2P_CLIENT:
12579 if (wdev->current_bss)
12588 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
12595 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
12597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12598 struct net_device *dev = info->user_ptr[1];
12599 struct wireless_dev *wdev = dev->ieee80211_ptr;
12604 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
12607 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12608 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12611 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12617 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12618 struct genl_info *info)
12620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12621 struct net_device *dev = info->user_ptr[1];
12622 struct wireless_dev *wdev = dev->ieee80211_ptr;
12623 struct cfg80211_chan_def chandef = {};
12628 if (!rdev->ops->tdls_channel_switch ||
12629 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12630 return -EOPNOTSUPP;
12632 switch (dev->ieee80211_ptr->iftype) {
12633 case NL80211_IFTYPE_STATION:
12634 case NL80211_IFTYPE_P2P_CLIENT:
12637 return -EOPNOTSUPP;
12640 if (!info->attrs[NL80211_ATTR_MAC] ||
12641 !info->attrs[NL80211_ATTR_OPER_CLASS])
12644 err = nl80211_parse_chandef(rdev, info, &chandef);
12649 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12650 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12651 * specification is not defined for them.
12653 if (chandef.chan->band == NL80211_BAND_2GHZ &&
12654 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12655 chandef.width != NL80211_CHAN_WIDTH_20)
12658 /* we will be active on the TDLS link */
12659 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12663 /* don't allow switching to DFS channels */
12664 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12667 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12668 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12671 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12677 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12678 struct genl_info *info)
12680 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12681 struct net_device *dev = info->user_ptr[1];
12682 struct wireless_dev *wdev = dev->ieee80211_ptr;
12685 if (!rdev->ops->tdls_channel_switch ||
12686 !rdev->ops->tdls_cancel_channel_switch ||
12687 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12688 return -EOPNOTSUPP;
12690 switch (dev->ieee80211_ptr->iftype) {
12691 case NL80211_IFTYPE_STATION:
12692 case NL80211_IFTYPE_P2P_CLIENT:
12695 return -EOPNOTSUPP;
12698 if (!info->attrs[NL80211_ATTR_MAC])
12701 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12704 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12710 static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12711 struct genl_info *info)
12713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12714 struct net_device *dev = info->user_ptr[1];
12715 struct wireless_dev *wdev = dev->ieee80211_ptr;
12716 const struct nlattr *nla;
12719 if (!rdev->ops->set_multicast_to_unicast)
12720 return -EOPNOTSUPP;
12722 if (wdev->iftype != NL80211_IFTYPE_AP &&
12723 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12724 return -EOPNOTSUPP;
12726 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12727 enabled = nla_get_flag(nla);
12729 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12732 static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
12734 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12735 struct net_device *dev = info->user_ptr[1];
12736 struct wireless_dev *wdev = dev->ieee80211_ptr;
12737 struct cfg80211_pmk_conf pmk_conf = {};
12740 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12741 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12742 return -EOPNOTSUPP;
12744 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12745 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12746 return -EOPNOTSUPP;
12748 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
12752 if (!wdev->current_bss) {
12757 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12758 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
12763 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
12764 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
12765 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
12766 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
12771 if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
12772 int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12774 if (r0_name_len != WLAN_PMK_NAME_LEN) {
12779 pmk_conf.pmk_r0_name =
12780 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12783 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
12789 static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
12791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12792 struct net_device *dev = info->user_ptr[1];
12793 struct wireless_dev *wdev = dev->ieee80211_ptr;
12797 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12798 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12799 return -EOPNOTSUPP;
12801 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12802 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12803 return -EOPNOTSUPP;
12805 if (!info->attrs[NL80211_ATTR_MAC])
12809 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12810 ret = rdev_del_pmk(rdev, dev, aa);
12816 static int nl80211_external_auth(struct sk_buff *skb, struct genl_info *info)
12818 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12819 struct net_device *dev = info->user_ptr[1];
12820 struct cfg80211_external_auth_params params;
12822 if (!rdev->ops->external_auth)
12823 return -EOPNOTSUPP;
12825 if (!info->attrs[NL80211_ATTR_SSID])
12828 if (!info->attrs[NL80211_ATTR_BSSID])
12831 if (!info->attrs[NL80211_ATTR_STATUS_CODE])
12834 memset(¶ms, 0, sizeof(params));
12836 params.ssid.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
12837 if (params.ssid.ssid_len == 0 ||
12838 params.ssid.ssid_len > IEEE80211_MAX_SSID_LEN)
12840 memcpy(params.ssid.ssid, nla_data(info->attrs[NL80211_ATTR_SSID]),
12841 params.ssid.ssid_len);
12843 memcpy(params.bssid, nla_data(info->attrs[NL80211_ATTR_BSSID]),
12846 params.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
12848 return rdev_external_auth(rdev, dev, ¶ms);
12851 static int nl80211_tx_control_port(struct sk_buff *skb, struct genl_info *info)
12853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12854 struct net_device *dev = info->user_ptr[1];
12855 struct wireless_dev *wdev = dev->ieee80211_ptr;
12863 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12864 NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211))
12865 return -EOPNOTSUPP;
12867 if (!rdev->ops->tx_control_port)
12868 return -EOPNOTSUPP;
12870 if (!info->attrs[NL80211_ATTR_FRAME] ||
12871 !info->attrs[NL80211_ATTR_MAC] ||
12872 !info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
12873 GENL_SET_ERR_MSG(info, "Frame, MAC or ethertype missing");
12879 switch (wdev->iftype) {
12880 case NL80211_IFTYPE_AP:
12881 case NL80211_IFTYPE_P2P_GO:
12882 case NL80211_IFTYPE_MESH_POINT:
12884 case NL80211_IFTYPE_ADHOC:
12885 case NL80211_IFTYPE_STATION:
12886 case NL80211_IFTYPE_P2P_CLIENT:
12887 if (wdev->current_bss)
12898 buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
12899 len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
12900 dest = nla_data(info->attrs[NL80211_ATTR_MAC]);
12901 proto = nla_get_u16(info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
12903 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]);
12905 return rdev_tx_control_port(rdev, dev, buf, len,
12906 dest, cpu_to_be16(proto), noencrypt);
12913 static int nl80211_get_ftm_responder_stats(struct sk_buff *skb,
12914 struct genl_info *info)
12916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12917 struct net_device *dev = info->user_ptr[1];
12918 struct wireless_dev *wdev = dev->ieee80211_ptr;
12919 struct cfg80211_ftm_responder_stats ftm_stats = {};
12920 struct sk_buff *msg;
12922 struct nlattr *ftm_stats_attr;
12925 if (wdev->iftype != NL80211_IFTYPE_AP || !wdev->beacon_interval)
12926 return -EOPNOTSUPP;
12928 err = rdev_get_ftm_responder_stats(rdev, dev, &ftm_stats);
12932 if (!ftm_stats.filled)
12935 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12939 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
12940 NL80211_CMD_GET_FTM_RESPONDER_STATS);
12944 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12945 goto nla_put_failure;
12947 ftm_stats_attr = nla_nest_start(msg, NL80211_ATTR_FTM_RESPONDER_STATS);
12948 if (!ftm_stats_attr)
12949 goto nla_put_failure;
12951 #define SET_FTM(field, name, type) \
12952 do { if ((ftm_stats.filled & BIT(NL80211_FTM_STATS_ ## name)) && \
12953 nla_put_ ## type(msg, NL80211_FTM_STATS_ ## name, \
12954 ftm_stats.field)) \
12955 goto nla_put_failure; } while (0)
12956 #define SET_FTM_U64(field, name) \
12957 do { if ((ftm_stats.filled & BIT(NL80211_FTM_STATS_ ## name)) && \
12958 nla_put_u64_64bit(msg, NL80211_FTM_STATS_ ## name, \
12959 ftm_stats.field, NL80211_FTM_STATS_PAD)) \
12960 goto nla_put_failure; } while (0)
12962 SET_FTM(success_num, SUCCESS_NUM, u32);
12963 SET_FTM(partial_num, PARTIAL_NUM, u32);
12964 SET_FTM(failed_num, FAILED_NUM, u32);
12965 SET_FTM(asap_num, ASAP_NUM, u32);
12966 SET_FTM(non_asap_num, NON_ASAP_NUM, u32);
12967 SET_FTM_U64(total_duration_ms, TOTAL_DURATION_MSEC);
12968 SET_FTM(unknown_triggers_num, UNKNOWN_TRIGGERS_NUM, u32);
12969 SET_FTM(reschedule_requests_num, RESCHEDULE_REQUESTS_NUM, u32);
12970 SET_FTM(out_of_window_triggers_num, OUT_OF_WINDOW_TRIGGERS_NUM, u32);
12973 nla_nest_end(msg, ftm_stats_attr);
12975 genlmsg_end(msg, hdr);
12976 return genlmsg_reply(msg, info);
12983 #define NL80211_FLAG_NEED_WIPHY 0x01
12984 #define NL80211_FLAG_NEED_NETDEV 0x02
12985 #define NL80211_FLAG_NEED_RTNL 0x04
12986 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
12987 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
12988 NL80211_FLAG_CHECK_NETDEV_UP)
12989 #define NL80211_FLAG_NEED_WDEV 0x10
12990 /* If a netdev is associated, it must be UP, P2P must be started */
12991 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
12992 NL80211_FLAG_CHECK_NETDEV_UP)
12993 #define NL80211_FLAG_CLEAR_SKB 0x20
12995 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
12996 struct genl_info *info)
12998 struct cfg80211_registered_device *rdev;
12999 struct wireless_dev *wdev;
13000 struct net_device *dev;
13001 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
13006 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
13007 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
13008 if (IS_ERR(rdev)) {
13011 return PTR_ERR(rdev);
13013 info->user_ptr[0] = rdev;
13014 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
13015 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
13018 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
13020 if (IS_ERR(wdev)) {
13023 return PTR_ERR(wdev);
13026 dev = wdev->netdev;
13027 rdev = wiphy_to_rdev(wdev->wiphy);
13029 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
13036 info->user_ptr[1] = dev;
13038 info->user_ptr[1] = wdev;
13041 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
13042 !wdev_running(wdev)) {
13051 info->user_ptr[0] = rdev;
13057 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
13058 struct genl_info *info)
13060 if (info->user_ptr[1]) {
13061 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
13062 struct wireless_dev *wdev = info->user_ptr[1];
13065 dev_put(wdev->netdev);
13067 dev_put(info->user_ptr[1]);
13071 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
13074 /* If needed, clear the netlink message payload from the SKB
13075 * as it might contain key data that shouldn't stick around on
13076 * the heap after the SKB is freed. The netlink message header
13077 * is still needed for further processing, so leave it intact.
13079 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
13080 struct nlmsghdr *nlh = nlmsg_hdr(skb);
13082 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
13086 static const struct genl_ops nl80211_ops[] = {
13088 .cmd = NL80211_CMD_GET_WIPHY,
13089 .doit = nl80211_get_wiphy,
13090 .dumpit = nl80211_dump_wiphy,
13091 .done = nl80211_dump_wiphy_done,
13092 .policy = nl80211_policy,
13093 /* can be retrieved by unprivileged users */
13094 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13095 NL80211_FLAG_NEED_RTNL,
13098 .cmd = NL80211_CMD_SET_WIPHY,
13099 .doit = nl80211_set_wiphy,
13100 .policy = nl80211_policy,
13101 .flags = GENL_UNS_ADMIN_PERM,
13102 .internal_flags = NL80211_FLAG_NEED_RTNL,
13105 .cmd = NL80211_CMD_GET_INTERFACE,
13106 .doit = nl80211_get_interface,
13107 .dumpit = nl80211_dump_interface,
13108 .policy = nl80211_policy,
13109 /* can be retrieved by unprivileged users */
13110 .internal_flags = NL80211_FLAG_NEED_WDEV |
13111 NL80211_FLAG_NEED_RTNL,
13114 .cmd = NL80211_CMD_SET_INTERFACE,
13115 .doit = nl80211_set_interface,
13116 .policy = nl80211_policy,
13117 .flags = GENL_UNS_ADMIN_PERM,
13118 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13119 NL80211_FLAG_NEED_RTNL,
13122 .cmd = NL80211_CMD_NEW_INTERFACE,
13123 .doit = nl80211_new_interface,
13124 .policy = nl80211_policy,
13125 .flags = GENL_UNS_ADMIN_PERM,
13126 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13127 NL80211_FLAG_NEED_RTNL,
13130 .cmd = NL80211_CMD_DEL_INTERFACE,
13131 .doit = nl80211_del_interface,
13132 .policy = nl80211_policy,
13133 .flags = GENL_UNS_ADMIN_PERM,
13134 .internal_flags = NL80211_FLAG_NEED_WDEV |
13135 NL80211_FLAG_NEED_RTNL,
13138 .cmd = NL80211_CMD_GET_KEY,
13139 .doit = nl80211_get_key,
13140 .policy = nl80211_policy,
13141 .flags = GENL_UNS_ADMIN_PERM,
13142 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13143 NL80211_FLAG_NEED_RTNL,
13146 .cmd = NL80211_CMD_SET_KEY,
13147 .doit = nl80211_set_key,
13148 .policy = nl80211_policy,
13149 .flags = GENL_UNS_ADMIN_PERM,
13150 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13151 NL80211_FLAG_NEED_RTNL |
13152 NL80211_FLAG_CLEAR_SKB,
13155 .cmd = NL80211_CMD_NEW_KEY,
13156 .doit = nl80211_new_key,
13157 .policy = nl80211_policy,
13158 .flags = GENL_UNS_ADMIN_PERM,
13159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13160 NL80211_FLAG_NEED_RTNL |
13161 NL80211_FLAG_CLEAR_SKB,
13164 .cmd = NL80211_CMD_DEL_KEY,
13165 .doit = nl80211_del_key,
13166 .policy = nl80211_policy,
13167 .flags = GENL_UNS_ADMIN_PERM,
13168 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13169 NL80211_FLAG_NEED_RTNL,
13172 .cmd = NL80211_CMD_SET_BEACON,
13173 .policy = nl80211_policy,
13174 .flags = GENL_UNS_ADMIN_PERM,
13175 .doit = nl80211_set_beacon,
13176 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13177 NL80211_FLAG_NEED_RTNL,
13180 .cmd = NL80211_CMD_START_AP,
13181 .policy = nl80211_policy,
13182 .flags = GENL_UNS_ADMIN_PERM,
13183 .doit = nl80211_start_ap,
13184 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13185 NL80211_FLAG_NEED_RTNL,
13188 .cmd = NL80211_CMD_STOP_AP,
13189 .policy = nl80211_policy,
13190 .flags = GENL_UNS_ADMIN_PERM,
13191 .doit = nl80211_stop_ap,
13192 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13193 NL80211_FLAG_NEED_RTNL,
13196 .cmd = NL80211_CMD_GET_STATION,
13197 .doit = nl80211_get_station,
13198 .dumpit = nl80211_dump_station,
13199 .policy = nl80211_policy,
13200 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13201 NL80211_FLAG_NEED_RTNL,
13204 .cmd = NL80211_CMD_SET_STATION,
13205 .doit = nl80211_set_station,
13206 .policy = nl80211_policy,
13207 .flags = GENL_UNS_ADMIN_PERM,
13208 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13209 NL80211_FLAG_NEED_RTNL,
13212 .cmd = NL80211_CMD_NEW_STATION,
13213 .doit = nl80211_new_station,
13214 .policy = nl80211_policy,
13215 .flags = GENL_UNS_ADMIN_PERM,
13216 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13217 NL80211_FLAG_NEED_RTNL,
13220 .cmd = NL80211_CMD_DEL_STATION,
13221 .doit = nl80211_del_station,
13222 .policy = nl80211_policy,
13223 .flags = GENL_UNS_ADMIN_PERM,
13224 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13225 NL80211_FLAG_NEED_RTNL,
13228 .cmd = NL80211_CMD_GET_MPATH,
13229 .doit = nl80211_get_mpath,
13230 .dumpit = nl80211_dump_mpath,
13231 .policy = nl80211_policy,
13232 .flags = GENL_UNS_ADMIN_PERM,
13233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13234 NL80211_FLAG_NEED_RTNL,
13237 .cmd = NL80211_CMD_GET_MPP,
13238 .doit = nl80211_get_mpp,
13239 .dumpit = nl80211_dump_mpp,
13240 .policy = nl80211_policy,
13241 .flags = GENL_UNS_ADMIN_PERM,
13242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13243 NL80211_FLAG_NEED_RTNL,
13246 .cmd = NL80211_CMD_SET_MPATH,
13247 .doit = nl80211_set_mpath,
13248 .policy = nl80211_policy,
13249 .flags = GENL_UNS_ADMIN_PERM,
13250 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13251 NL80211_FLAG_NEED_RTNL,
13254 .cmd = NL80211_CMD_NEW_MPATH,
13255 .doit = nl80211_new_mpath,
13256 .policy = nl80211_policy,
13257 .flags = GENL_UNS_ADMIN_PERM,
13258 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13259 NL80211_FLAG_NEED_RTNL,
13262 .cmd = NL80211_CMD_DEL_MPATH,
13263 .doit = nl80211_del_mpath,
13264 .policy = nl80211_policy,
13265 .flags = GENL_UNS_ADMIN_PERM,
13266 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13267 NL80211_FLAG_NEED_RTNL,
13270 .cmd = NL80211_CMD_SET_BSS,
13271 .doit = nl80211_set_bss,
13272 .policy = nl80211_policy,
13273 .flags = GENL_UNS_ADMIN_PERM,
13274 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13275 NL80211_FLAG_NEED_RTNL,
13278 .cmd = NL80211_CMD_GET_REG,
13279 .doit = nl80211_get_reg_do,
13280 .dumpit = nl80211_get_reg_dump,
13281 .policy = nl80211_policy,
13282 .internal_flags = NL80211_FLAG_NEED_RTNL,
13283 /* can be retrieved by unprivileged users */
13285 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
13287 .cmd = NL80211_CMD_SET_REG,
13288 .doit = nl80211_set_reg,
13289 .policy = nl80211_policy,
13290 .flags = GENL_ADMIN_PERM,
13291 .internal_flags = NL80211_FLAG_NEED_RTNL,
13295 .cmd = NL80211_CMD_REQ_SET_REG,
13296 .doit = nl80211_req_set_reg,
13297 .policy = nl80211_policy,
13298 .flags = GENL_ADMIN_PERM,
13301 .cmd = NL80211_CMD_RELOAD_REGDB,
13302 .doit = nl80211_reload_regdb,
13303 .policy = nl80211_policy,
13304 .flags = GENL_ADMIN_PERM,
13307 .cmd = NL80211_CMD_GET_MESH_CONFIG,
13308 .doit = nl80211_get_mesh_config,
13309 .policy = nl80211_policy,
13310 /* can be retrieved by unprivileged users */
13311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13312 NL80211_FLAG_NEED_RTNL,
13315 .cmd = NL80211_CMD_SET_MESH_CONFIG,
13316 .doit = nl80211_update_mesh_config,
13317 .policy = nl80211_policy,
13318 .flags = GENL_UNS_ADMIN_PERM,
13319 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13320 NL80211_FLAG_NEED_RTNL,
13323 .cmd = NL80211_CMD_TRIGGER_SCAN,
13324 .doit = nl80211_trigger_scan,
13325 .policy = nl80211_policy,
13326 .flags = GENL_UNS_ADMIN_PERM,
13327 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13328 NL80211_FLAG_NEED_RTNL,
13331 .cmd = NL80211_CMD_ABORT_SCAN,
13332 .doit = nl80211_abort_scan,
13333 .policy = nl80211_policy,
13334 .flags = GENL_UNS_ADMIN_PERM,
13335 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13336 NL80211_FLAG_NEED_RTNL,
13339 .cmd = NL80211_CMD_GET_SCAN,
13340 .policy = nl80211_policy,
13341 .dumpit = nl80211_dump_scan,
13344 .cmd = NL80211_CMD_START_SCHED_SCAN,
13345 .doit = nl80211_start_sched_scan,
13346 .policy = nl80211_policy,
13347 .flags = GENL_UNS_ADMIN_PERM,
13348 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13349 NL80211_FLAG_NEED_RTNL,
13352 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
13353 .doit = nl80211_stop_sched_scan,
13354 .policy = nl80211_policy,
13355 .flags = GENL_UNS_ADMIN_PERM,
13356 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13357 NL80211_FLAG_NEED_RTNL,
13360 .cmd = NL80211_CMD_AUTHENTICATE,
13361 .doit = nl80211_authenticate,
13362 .policy = nl80211_policy,
13363 .flags = GENL_UNS_ADMIN_PERM,
13364 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13365 NL80211_FLAG_NEED_RTNL |
13366 NL80211_FLAG_CLEAR_SKB,
13369 .cmd = NL80211_CMD_ASSOCIATE,
13370 .doit = nl80211_associate,
13371 .policy = nl80211_policy,
13372 .flags = GENL_UNS_ADMIN_PERM,
13373 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13374 NL80211_FLAG_NEED_RTNL,
13377 .cmd = NL80211_CMD_DEAUTHENTICATE,
13378 .doit = nl80211_deauthenticate,
13379 .policy = nl80211_policy,
13380 .flags = GENL_UNS_ADMIN_PERM,
13381 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13382 NL80211_FLAG_NEED_RTNL,
13385 .cmd = NL80211_CMD_DISASSOCIATE,
13386 .doit = nl80211_disassociate,
13387 .policy = nl80211_policy,
13388 .flags = GENL_UNS_ADMIN_PERM,
13389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13390 NL80211_FLAG_NEED_RTNL,
13393 .cmd = NL80211_CMD_JOIN_IBSS,
13394 .doit = nl80211_join_ibss,
13395 .policy = nl80211_policy,
13396 .flags = GENL_UNS_ADMIN_PERM,
13397 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13398 NL80211_FLAG_NEED_RTNL,
13401 .cmd = NL80211_CMD_LEAVE_IBSS,
13402 .doit = nl80211_leave_ibss,
13403 .policy = nl80211_policy,
13404 .flags = GENL_UNS_ADMIN_PERM,
13405 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13406 NL80211_FLAG_NEED_RTNL,
13408 #ifdef CONFIG_NL80211_TESTMODE
13410 .cmd = NL80211_CMD_TESTMODE,
13411 .doit = nl80211_testmode_do,
13412 .dumpit = nl80211_testmode_dump,
13413 .policy = nl80211_policy,
13414 .flags = GENL_UNS_ADMIN_PERM,
13415 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13416 NL80211_FLAG_NEED_RTNL,
13420 .cmd = NL80211_CMD_CONNECT,
13421 .doit = nl80211_connect,
13422 .policy = nl80211_policy,
13423 .flags = GENL_UNS_ADMIN_PERM,
13424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13425 NL80211_FLAG_NEED_RTNL,
13428 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
13429 .doit = nl80211_update_connect_params,
13430 .policy = nl80211_policy,
13431 .flags = GENL_ADMIN_PERM,
13432 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13433 NL80211_FLAG_NEED_RTNL,
13436 .cmd = NL80211_CMD_DISCONNECT,
13437 .doit = nl80211_disconnect,
13438 .policy = nl80211_policy,
13439 .flags = GENL_UNS_ADMIN_PERM,
13440 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13441 NL80211_FLAG_NEED_RTNL,
13444 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
13445 .doit = nl80211_wiphy_netns,
13446 .policy = nl80211_policy,
13447 .flags = GENL_UNS_ADMIN_PERM,
13448 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13449 NL80211_FLAG_NEED_RTNL,
13452 .cmd = NL80211_CMD_GET_SURVEY,
13453 .policy = nl80211_policy,
13454 .dumpit = nl80211_dump_survey,
13457 .cmd = NL80211_CMD_SET_PMKSA,
13458 .doit = nl80211_setdel_pmksa,
13459 .policy = nl80211_policy,
13460 .flags = GENL_UNS_ADMIN_PERM,
13461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13462 NL80211_FLAG_NEED_RTNL,
13465 .cmd = NL80211_CMD_DEL_PMKSA,
13466 .doit = nl80211_setdel_pmksa,
13467 .policy = nl80211_policy,
13468 .flags = GENL_UNS_ADMIN_PERM,
13469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13470 NL80211_FLAG_NEED_RTNL,
13473 .cmd = NL80211_CMD_FLUSH_PMKSA,
13474 .doit = nl80211_flush_pmksa,
13475 .policy = nl80211_policy,
13476 .flags = GENL_UNS_ADMIN_PERM,
13477 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13478 NL80211_FLAG_NEED_RTNL,
13481 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
13482 .doit = nl80211_remain_on_channel,
13483 .policy = nl80211_policy,
13484 .flags = GENL_UNS_ADMIN_PERM,
13485 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13486 NL80211_FLAG_NEED_RTNL,
13489 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
13490 .doit = nl80211_cancel_remain_on_channel,
13491 .policy = nl80211_policy,
13492 .flags = GENL_UNS_ADMIN_PERM,
13493 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13494 NL80211_FLAG_NEED_RTNL,
13497 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
13498 .doit = nl80211_set_tx_bitrate_mask,
13499 .policy = nl80211_policy,
13500 .flags = GENL_UNS_ADMIN_PERM,
13501 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13502 NL80211_FLAG_NEED_RTNL,
13505 .cmd = NL80211_CMD_REGISTER_FRAME,
13506 .doit = nl80211_register_mgmt,
13507 .policy = nl80211_policy,
13508 .flags = GENL_UNS_ADMIN_PERM,
13509 .internal_flags = NL80211_FLAG_NEED_WDEV |
13510 NL80211_FLAG_NEED_RTNL,
13513 .cmd = NL80211_CMD_FRAME,
13514 .doit = nl80211_tx_mgmt,
13515 .policy = nl80211_policy,
13516 .flags = GENL_UNS_ADMIN_PERM,
13517 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13518 NL80211_FLAG_NEED_RTNL,
13521 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
13522 .doit = nl80211_tx_mgmt_cancel_wait,
13523 .policy = nl80211_policy,
13524 .flags = GENL_UNS_ADMIN_PERM,
13525 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13526 NL80211_FLAG_NEED_RTNL,
13529 .cmd = NL80211_CMD_SET_POWER_SAVE,
13530 .doit = nl80211_set_power_save,
13531 .policy = nl80211_policy,
13532 .flags = GENL_UNS_ADMIN_PERM,
13533 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13534 NL80211_FLAG_NEED_RTNL,
13537 .cmd = NL80211_CMD_GET_POWER_SAVE,
13538 .doit = nl80211_get_power_save,
13539 .policy = nl80211_policy,
13540 /* can be retrieved by unprivileged users */
13541 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13542 NL80211_FLAG_NEED_RTNL,
13545 .cmd = NL80211_CMD_SET_CQM,
13546 .doit = nl80211_set_cqm,
13547 .policy = nl80211_policy,
13548 .flags = GENL_UNS_ADMIN_PERM,
13549 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13550 NL80211_FLAG_NEED_RTNL,
13553 .cmd = NL80211_CMD_SET_CHANNEL,
13554 .doit = nl80211_set_channel,
13555 .policy = nl80211_policy,
13556 .flags = GENL_UNS_ADMIN_PERM,
13557 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13558 NL80211_FLAG_NEED_RTNL,
13561 .cmd = NL80211_CMD_SET_WDS_PEER,
13562 .doit = nl80211_set_wds_peer,
13563 .policy = nl80211_policy,
13564 .flags = GENL_UNS_ADMIN_PERM,
13565 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13566 NL80211_FLAG_NEED_RTNL,
13569 .cmd = NL80211_CMD_JOIN_MESH,
13570 .doit = nl80211_join_mesh,
13571 .policy = nl80211_policy,
13572 .flags = GENL_UNS_ADMIN_PERM,
13573 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13574 NL80211_FLAG_NEED_RTNL,
13577 .cmd = NL80211_CMD_LEAVE_MESH,
13578 .doit = nl80211_leave_mesh,
13579 .policy = nl80211_policy,
13580 .flags = GENL_UNS_ADMIN_PERM,
13581 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13582 NL80211_FLAG_NEED_RTNL,
13585 .cmd = NL80211_CMD_JOIN_OCB,
13586 .doit = nl80211_join_ocb,
13587 .policy = nl80211_policy,
13588 .flags = GENL_UNS_ADMIN_PERM,
13589 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13590 NL80211_FLAG_NEED_RTNL,
13593 .cmd = NL80211_CMD_LEAVE_OCB,
13594 .doit = nl80211_leave_ocb,
13595 .policy = nl80211_policy,
13596 .flags = GENL_UNS_ADMIN_PERM,
13597 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13598 NL80211_FLAG_NEED_RTNL,
13602 .cmd = NL80211_CMD_GET_WOWLAN,
13603 .doit = nl80211_get_wowlan,
13604 .policy = nl80211_policy,
13605 /* can be retrieved by unprivileged users */
13606 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13607 NL80211_FLAG_NEED_RTNL,
13610 .cmd = NL80211_CMD_SET_WOWLAN,
13611 .doit = nl80211_set_wowlan,
13612 .policy = nl80211_policy,
13613 .flags = GENL_UNS_ADMIN_PERM,
13614 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13615 NL80211_FLAG_NEED_RTNL,
13619 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
13620 .doit = nl80211_set_rekey_data,
13621 .policy = nl80211_policy,
13622 .flags = GENL_UNS_ADMIN_PERM,
13623 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13624 NL80211_FLAG_NEED_RTNL |
13625 NL80211_FLAG_CLEAR_SKB,
13628 .cmd = NL80211_CMD_TDLS_MGMT,
13629 .doit = nl80211_tdls_mgmt,
13630 .policy = nl80211_policy,
13631 .flags = GENL_UNS_ADMIN_PERM,
13632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13633 NL80211_FLAG_NEED_RTNL,
13636 .cmd = NL80211_CMD_TDLS_OPER,
13637 .doit = nl80211_tdls_oper,
13638 .policy = nl80211_policy,
13639 .flags = GENL_UNS_ADMIN_PERM,
13640 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13641 NL80211_FLAG_NEED_RTNL,
13644 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
13645 .doit = nl80211_register_unexpected_frame,
13646 .policy = nl80211_policy,
13647 .flags = GENL_UNS_ADMIN_PERM,
13648 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13649 NL80211_FLAG_NEED_RTNL,
13652 .cmd = NL80211_CMD_PROBE_CLIENT,
13653 .doit = nl80211_probe_client,
13654 .policy = nl80211_policy,
13655 .flags = GENL_UNS_ADMIN_PERM,
13656 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13657 NL80211_FLAG_NEED_RTNL,
13660 .cmd = NL80211_CMD_REGISTER_BEACONS,
13661 .doit = nl80211_register_beacons,
13662 .policy = nl80211_policy,
13663 .flags = GENL_UNS_ADMIN_PERM,
13664 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13665 NL80211_FLAG_NEED_RTNL,
13668 .cmd = NL80211_CMD_SET_NOACK_MAP,
13669 .doit = nl80211_set_noack_map,
13670 .policy = nl80211_policy,
13671 .flags = GENL_UNS_ADMIN_PERM,
13672 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13673 NL80211_FLAG_NEED_RTNL,
13676 .cmd = NL80211_CMD_START_P2P_DEVICE,
13677 .doit = nl80211_start_p2p_device,
13678 .policy = nl80211_policy,
13679 .flags = GENL_UNS_ADMIN_PERM,
13680 .internal_flags = NL80211_FLAG_NEED_WDEV |
13681 NL80211_FLAG_NEED_RTNL,
13684 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
13685 .doit = nl80211_stop_p2p_device,
13686 .policy = nl80211_policy,
13687 .flags = GENL_UNS_ADMIN_PERM,
13688 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13689 NL80211_FLAG_NEED_RTNL,
13692 .cmd = NL80211_CMD_START_NAN,
13693 .doit = nl80211_start_nan,
13694 .policy = nl80211_policy,
13695 .flags = GENL_ADMIN_PERM,
13696 .internal_flags = NL80211_FLAG_NEED_WDEV |
13697 NL80211_FLAG_NEED_RTNL,
13700 .cmd = NL80211_CMD_STOP_NAN,
13701 .doit = nl80211_stop_nan,
13702 .policy = nl80211_policy,
13703 .flags = GENL_ADMIN_PERM,
13704 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13705 NL80211_FLAG_NEED_RTNL,
13708 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
13709 .doit = nl80211_nan_add_func,
13710 .policy = nl80211_policy,
13711 .flags = GENL_ADMIN_PERM,
13712 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13713 NL80211_FLAG_NEED_RTNL,
13716 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
13717 .doit = nl80211_nan_del_func,
13718 .policy = nl80211_policy,
13719 .flags = GENL_ADMIN_PERM,
13720 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13721 NL80211_FLAG_NEED_RTNL,
13724 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
13725 .doit = nl80211_nan_change_config,
13726 .policy = nl80211_policy,
13727 .flags = GENL_ADMIN_PERM,
13728 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13729 NL80211_FLAG_NEED_RTNL,
13732 .cmd = NL80211_CMD_SET_MCAST_RATE,
13733 .doit = nl80211_set_mcast_rate,
13734 .policy = nl80211_policy,
13735 .flags = GENL_UNS_ADMIN_PERM,
13736 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13737 NL80211_FLAG_NEED_RTNL,
13740 .cmd = NL80211_CMD_SET_MAC_ACL,
13741 .doit = nl80211_set_mac_acl,
13742 .policy = nl80211_policy,
13743 .flags = GENL_UNS_ADMIN_PERM,
13744 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13745 NL80211_FLAG_NEED_RTNL,
13748 .cmd = NL80211_CMD_RADAR_DETECT,
13749 .doit = nl80211_start_radar_detection,
13750 .policy = nl80211_policy,
13751 .flags = GENL_UNS_ADMIN_PERM,
13752 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13753 NL80211_FLAG_NEED_RTNL,
13756 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
13757 .doit = nl80211_get_protocol_features,
13758 .policy = nl80211_policy,
13761 .cmd = NL80211_CMD_UPDATE_FT_IES,
13762 .doit = nl80211_update_ft_ies,
13763 .policy = nl80211_policy,
13764 .flags = GENL_UNS_ADMIN_PERM,
13765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13766 NL80211_FLAG_NEED_RTNL,
13769 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
13770 .doit = nl80211_crit_protocol_start,
13771 .policy = nl80211_policy,
13772 .flags = GENL_UNS_ADMIN_PERM,
13773 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13774 NL80211_FLAG_NEED_RTNL,
13777 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
13778 .doit = nl80211_crit_protocol_stop,
13779 .policy = nl80211_policy,
13780 .flags = GENL_UNS_ADMIN_PERM,
13781 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13782 NL80211_FLAG_NEED_RTNL,
13785 .cmd = NL80211_CMD_GET_COALESCE,
13786 .doit = nl80211_get_coalesce,
13787 .policy = nl80211_policy,
13788 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13789 NL80211_FLAG_NEED_RTNL,
13792 .cmd = NL80211_CMD_SET_COALESCE,
13793 .doit = nl80211_set_coalesce,
13794 .policy = nl80211_policy,
13795 .flags = GENL_UNS_ADMIN_PERM,
13796 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13797 NL80211_FLAG_NEED_RTNL,
13800 .cmd = NL80211_CMD_CHANNEL_SWITCH,
13801 .doit = nl80211_channel_switch,
13802 .policy = nl80211_policy,
13803 .flags = GENL_UNS_ADMIN_PERM,
13804 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13805 NL80211_FLAG_NEED_RTNL,
13808 .cmd = NL80211_CMD_VENDOR,
13809 .doit = nl80211_vendor_cmd,
13810 .dumpit = nl80211_vendor_cmd_dump,
13811 .policy = nl80211_policy,
13812 .flags = GENL_UNS_ADMIN_PERM,
13813 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13814 NL80211_FLAG_NEED_RTNL,
13817 .cmd = NL80211_CMD_SET_QOS_MAP,
13818 .doit = nl80211_set_qos_map,
13819 .policy = nl80211_policy,
13820 .flags = GENL_UNS_ADMIN_PERM,
13821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13822 NL80211_FLAG_NEED_RTNL,
13825 .cmd = NL80211_CMD_ADD_TX_TS,
13826 .doit = nl80211_add_tx_ts,
13827 .policy = nl80211_policy,
13828 .flags = GENL_UNS_ADMIN_PERM,
13829 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13830 NL80211_FLAG_NEED_RTNL,
13833 .cmd = NL80211_CMD_DEL_TX_TS,
13834 .doit = nl80211_del_tx_ts,
13835 .policy = nl80211_policy,
13836 .flags = GENL_UNS_ADMIN_PERM,
13837 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13838 NL80211_FLAG_NEED_RTNL,
13841 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
13842 .doit = nl80211_tdls_channel_switch,
13843 .policy = nl80211_policy,
13844 .flags = GENL_UNS_ADMIN_PERM,
13845 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13846 NL80211_FLAG_NEED_RTNL,
13849 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
13850 .doit = nl80211_tdls_cancel_channel_switch,
13851 .policy = nl80211_policy,
13852 .flags = GENL_UNS_ADMIN_PERM,
13853 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13854 NL80211_FLAG_NEED_RTNL,
13857 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
13858 .doit = nl80211_set_multicast_to_unicast,
13859 .policy = nl80211_policy,
13860 .flags = GENL_UNS_ADMIN_PERM,
13861 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13862 NL80211_FLAG_NEED_RTNL,
13865 .cmd = NL80211_CMD_SET_PMK,
13866 .doit = nl80211_set_pmk,
13867 .policy = nl80211_policy,
13868 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13869 NL80211_FLAG_NEED_RTNL,
13872 .cmd = NL80211_CMD_DEL_PMK,
13873 .doit = nl80211_del_pmk,
13874 .policy = nl80211_policy,
13875 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13876 NL80211_FLAG_NEED_RTNL,
13879 .cmd = NL80211_CMD_EXTERNAL_AUTH,
13880 .doit = nl80211_external_auth,
13881 .policy = nl80211_policy,
13882 .flags = GENL_ADMIN_PERM,
13883 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13884 NL80211_FLAG_NEED_RTNL,
13887 .cmd = NL80211_CMD_CONTROL_PORT_FRAME,
13888 .doit = nl80211_tx_control_port,
13889 .policy = nl80211_policy,
13890 .flags = GENL_UNS_ADMIN_PERM,
13891 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13892 NL80211_FLAG_NEED_RTNL,
13895 .cmd = NL80211_CMD_GET_FTM_RESPONDER_STATS,
13896 .doit = nl80211_get_ftm_responder_stats,
13897 .policy = nl80211_policy,
13898 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13899 NL80211_FLAG_NEED_RTNL,
13903 static struct genl_family nl80211_fam __ro_after_init = {
13904 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13905 .hdrsize = 0, /* no private header */
13906 .version = 1, /* no particular meaning now */
13907 .maxattr = NL80211_ATTR_MAX,
13909 .pre_doit = nl80211_pre_doit,
13910 .post_doit = nl80211_post_doit,
13911 .module = THIS_MODULE,
13912 .ops = nl80211_ops,
13913 .n_ops = ARRAY_SIZE(nl80211_ops),
13914 .mcgrps = nl80211_mcgrps,
13915 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13918 /* notification functions */
13920 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13921 enum nl80211_commands cmd)
13923 struct sk_buff *msg;
13924 struct nl80211_dump_wiphy_state state = {};
13926 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13927 cmd != NL80211_CMD_DEL_WIPHY);
13929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13933 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
13938 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13939 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13942 void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13943 struct wireless_dev *wdev,
13944 enum nl80211_commands cmd)
13946 struct sk_buff *msg;
13948 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13949 cmd != NL80211_CMD_DEL_INTERFACE);
13951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13955 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13956 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13961 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13962 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13965 static int nl80211_add_scan_req(struct sk_buff *msg,
13966 struct cfg80211_registered_device *rdev)
13968 struct cfg80211_scan_request *req = rdev->scan_req;
13969 struct nlattr *nest;
13975 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13977 goto nla_put_failure;
13978 for (i = 0; i < req->n_ssids; i++) {
13979 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13980 goto nla_put_failure;
13982 nla_nest_end(msg, nest);
13984 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13986 goto nla_put_failure;
13987 for (i = 0; i < req->n_channels; i++) {
13988 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
13989 goto nla_put_failure;
13991 nla_nest_end(msg, nest);
13994 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
13995 goto nla_put_failure;
13998 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
13999 goto nla_put_failure;
14001 if (req->info.scan_start_tsf &&
14002 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
14003 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
14004 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
14005 req->info.tsf_bssid)))
14006 goto nla_put_failure;
14013 static int nl80211_prep_scan_msg(struct sk_buff *msg,
14014 struct cfg80211_registered_device *rdev,
14015 struct wireless_dev *wdev,
14016 u32 portid, u32 seq, int flags,
14021 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
14025 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14026 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14027 wdev->netdev->ifindex)) ||
14028 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14030 goto nla_put_failure;
14032 /* ignore errors and send incomplete event anyway */
14033 nl80211_add_scan_req(msg, rdev);
14035 genlmsg_end(msg, hdr);
14039 genlmsg_cancel(msg, hdr);
14044 nl80211_prep_sched_scan_msg(struct sk_buff *msg,
14045 struct cfg80211_sched_scan_request *req, u32 cmd)
14049 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14053 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
14054 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
14055 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
14056 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
14058 goto nla_put_failure;
14060 genlmsg_end(msg, hdr);
14064 genlmsg_cancel(msg, hdr);
14068 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
14069 struct wireless_dev *wdev)
14071 struct sk_buff *msg;
14073 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14077 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
14078 NL80211_CMD_TRIGGER_SCAN) < 0) {
14083 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14084 NL80211_MCGRP_SCAN, GFP_KERNEL);
14087 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
14088 struct wireless_dev *wdev, bool aborted)
14090 struct sk_buff *msg;
14092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14096 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
14097 aborted ? NL80211_CMD_SCAN_ABORTED :
14098 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
14106 /* send message created by nl80211_build_scan_msg() */
14107 void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
14108 struct sk_buff *msg)
14113 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14114 NL80211_MCGRP_SCAN, GFP_KERNEL);
14117 void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
14119 struct sk_buff *msg;
14121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14125 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
14130 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
14131 NL80211_MCGRP_SCAN, GFP_KERNEL);
14134 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
14135 struct regulatory_request *request)
14137 /* Userspace can always count this one always being set */
14138 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
14139 goto nla_put_failure;
14141 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
14142 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
14143 NL80211_REGDOM_TYPE_WORLD))
14144 goto nla_put_failure;
14145 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
14146 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
14147 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
14148 goto nla_put_failure;
14149 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
14150 request->intersect) {
14151 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
14152 NL80211_REGDOM_TYPE_INTERSECTION))
14153 goto nla_put_failure;
14155 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
14156 NL80211_REGDOM_TYPE_COUNTRY) ||
14157 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
14159 goto nla_put_failure;
14162 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
14163 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
14166 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
14167 goto nla_put_failure;
14170 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
14171 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
14172 goto nla_put_failure;
14182 * This can happen on global regulatory changes or device specific settings
14183 * based on custom regulatory domains.
14185 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
14186 struct regulatory_request *request)
14188 struct sk_buff *msg;
14191 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14195 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
14201 if (nl80211_reg_change_event_fill(msg, request) == false)
14202 goto nla_put_failure;
14204 genlmsg_end(msg, hdr);
14207 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
14208 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
14217 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
14218 struct net_device *netdev,
14219 const u8 *buf, size_t len,
14220 enum nl80211_commands cmd, gfp_t gfp,
14223 struct sk_buff *msg;
14226 msg = nlmsg_new(100 + len, gfp);
14230 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14236 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14237 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14238 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
14239 goto nla_put_failure;
14241 if (uapsd_queues >= 0) {
14242 struct nlattr *nla_wmm =
14243 nla_nest_start(msg, NL80211_ATTR_STA_WME);
14245 goto nla_put_failure;
14247 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
14249 goto nla_put_failure;
14251 nla_nest_end(msg, nla_wmm);
14254 genlmsg_end(msg, hdr);
14256 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14257 NL80211_MCGRP_MLME, gfp);
14264 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
14265 struct net_device *netdev, const u8 *buf,
14266 size_t len, gfp_t gfp)
14268 nl80211_send_mlme_event(rdev, netdev, buf, len,
14269 NL80211_CMD_AUTHENTICATE, gfp, -1);
14272 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
14273 struct net_device *netdev, const u8 *buf,
14274 size_t len, gfp_t gfp, int uapsd_queues)
14276 nl80211_send_mlme_event(rdev, netdev, buf, len,
14277 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
14280 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
14281 struct net_device *netdev, const u8 *buf,
14282 size_t len, gfp_t gfp)
14284 nl80211_send_mlme_event(rdev, netdev, buf, len,
14285 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
14288 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
14289 struct net_device *netdev, const u8 *buf,
14290 size_t len, gfp_t gfp)
14292 nl80211_send_mlme_event(rdev, netdev, buf, len,
14293 NL80211_CMD_DISASSOCIATE, gfp, -1);
14296 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
14299 struct wireless_dev *wdev = dev->ieee80211_ptr;
14300 struct wiphy *wiphy = wdev->wiphy;
14301 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14302 const struct ieee80211_mgmt *mgmt = (void *)buf;
14305 if (WARN_ON(len < 2))
14308 if (ieee80211_is_deauth(mgmt->frame_control))
14309 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
14311 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
14313 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
14314 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
14316 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
14318 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
14319 struct net_device *netdev, int cmd,
14320 const u8 *addr, gfp_t gfp)
14322 struct sk_buff *msg;
14325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14329 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14335 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14336 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14337 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
14338 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14339 goto nla_put_failure;
14341 genlmsg_end(msg, hdr);
14343 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14344 NL80211_MCGRP_MLME, gfp);
14351 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
14352 struct net_device *netdev, const u8 *addr,
14355 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
14359 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
14360 struct net_device *netdev, const u8 *addr,
14363 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
14367 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
14368 struct net_device *netdev,
14369 struct cfg80211_connect_resp_params *cr,
14372 struct sk_buff *msg;
14375 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
14376 cr->fils.kek_len + cr->fils.pmk_len +
14377 (cr->fils.pmkid ? WLAN_PMKID_LEN : 0), gfp);
14381 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
14387 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14388 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14390 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
14391 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
14392 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
14395 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
14396 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
14397 cr->timeout_reason))) ||
14399 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
14401 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
14403 (cr->fils.update_erp_next_seq_num &&
14404 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
14405 cr->fils.erp_next_seq_num)) ||
14406 (cr->status == WLAN_STATUS_SUCCESS &&
14408 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils.kek_len,
14411 nla_put(msg, NL80211_ATTR_PMK, cr->fils.pmk_len, cr->fils.pmk)) ||
14413 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->fils.pmkid)))))
14414 goto nla_put_failure;
14416 genlmsg_end(msg, hdr);
14418 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14419 NL80211_MCGRP_MLME, gfp);
14426 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
14427 struct net_device *netdev,
14428 struct cfg80211_roam_info *info, gfp_t gfp)
14430 struct sk_buff *msg;
14432 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
14434 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len +
14435 info->fils.kek_len + info->fils.pmk_len +
14436 (info->fils.pmkid ? WLAN_PMKID_LEN : 0), gfp);
14440 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
14446 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14447 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14448 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
14450 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
14453 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
14455 (info->fils.update_erp_next_seq_num &&
14456 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
14457 info->fils.erp_next_seq_num)) ||
14459 nla_put(msg, NL80211_ATTR_FILS_KEK, info->fils.kek_len,
14460 info->fils.kek)) ||
14462 nla_put(msg, NL80211_ATTR_PMK, info->fils.pmk_len, info->fils.pmk)) ||
14463 (info->fils.pmkid &&
14464 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, info->fils.pmkid)))
14465 goto nla_put_failure;
14467 genlmsg_end(msg, hdr);
14469 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14470 NL80211_MCGRP_MLME, gfp);
14477 void nl80211_send_port_authorized(struct cfg80211_registered_device *rdev,
14478 struct net_device *netdev, const u8 *bssid)
14480 struct sk_buff *msg;
14483 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14487 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PORT_AUTHORIZED);
14493 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14494 goto nla_put_failure;
14496 genlmsg_end(msg, hdr);
14498 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14499 NL80211_MCGRP_MLME, GFP_KERNEL);
14506 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
14507 struct net_device *netdev, u16 reason,
14508 const u8 *ie, size_t ie_len, bool from_ap)
14510 struct sk_buff *msg;
14513 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
14517 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
14523 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14524 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14526 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
14528 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
14529 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
14530 goto nla_put_failure;
14532 genlmsg_end(msg, hdr);
14534 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14535 NL80211_MCGRP_MLME, GFP_KERNEL);
14542 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
14543 struct net_device *netdev, const u8 *bssid,
14546 struct sk_buff *msg;
14549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
14559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14560 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14561 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14562 goto nla_put_failure;
14564 genlmsg_end(msg, hdr);
14566 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14567 NL80211_MCGRP_MLME, gfp);
14574 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
14575 const u8* ie, u8 ie_len, gfp_t gfp)
14577 struct wireless_dev *wdev = dev->ieee80211_ptr;
14578 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14579 struct sk_buff *msg;
14582 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
14585 trace_cfg80211_notify_new_peer_candidate(dev, addr);
14587 msg = nlmsg_new(100 + ie_len, gfp);
14591 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
14597 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14598 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14599 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
14601 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
14602 goto nla_put_failure;
14604 genlmsg_end(msg, hdr);
14606 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14607 NL80211_MCGRP_MLME, gfp);
14613 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
14615 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
14616 struct net_device *netdev, const u8 *addr,
14617 enum nl80211_key_type key_type, int key_id,
14618 const u8 *tsc, gfp_t gfp)
14620 struct sk_buff *msg;
14623 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14627 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
14633 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14634 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14635 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
14636 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
14638 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
14639 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
14640 goto nla_put_failure;
14642 genlmsg_end(msg, hdr);
14644 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14645 NL80211_MCGRP_MLME, gfp);
14652 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
14653 struct ieee80211_channel *channel_before,
14654 struct ieee80211_channel *channel_after)
14656 struct sk_buff *msg;
14658 struct nlattr *nl_freq;
14660 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
14664 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
14671 * Since we are applying the beacon hint to a wiphy we know its
14672 * wiphy_idx is valid
14674 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
14675 goto nla_put_failure;
14678 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
14680 goto nla_put_failure;
14682 if (nl80211_msg_put_channel(msg, wiphy, channel_before, false))
14683 goto nla_put_failure;
14684 nla_nest_end(msg, nl_freq);
14687 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
14689 goto nla_put_failure;
14691 if (nl80211_msg_put_channel(msg, wiphy, channel_after, false))
14692 goto nla_put_failure;
14693 nla_nest_end(msg, nl_freq);
14695 genlmsg_end(msg, hdr);
14698 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
14699 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
14708 static void nl80211_send_remain_on_chan_event(
14709 int cmd, struct cfg80211_registered_device *rdev,
14710 struct wireless_dev *wdev, u64 cookie,
14711 struct ieee80211_channel *chan,
14712 unsigned int duration, gfp_t gfp)
14714 struct sk_buff *msg;
14717 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14721 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14727 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14728 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14729 wdev->netdev->ifindex)) ||
14730 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14731 NL80211_ATTR_PAD) ||
14732 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
14733 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
14734 NL80211_CHAN_NO_HT) ||
14735 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14737 goto nla_put_failure;
14739 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
14740 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
14741 goto nla_put_failure;
14743 genlmsg_end(msg, hdr);
14745 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14746 NL80211_MCGRP_MLME, gfp);
14753 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
14754 struct ieee80211_channel *chan,
14755 unsigned int duration, gfp_t gfp)
14757 struct wiphy *wiphy = wdev->wiphy;
14758 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14760 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
14761 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
14762 rdev, wdev, cookie, chan,
14765 EXPORT_SYMBOL(cfg80211_ready_on_channel);
14767 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
14768 struct ieee80211_channel *chan,
14771 struct wiphy *wiphy = wdev->wiphy;
14772 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14774 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
14775 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
14776 rdev, wdev, cookie, chan, 0, gfp);
14778 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
14780 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
14781 struct station_info *sinfo, gfp_t gfp)
14783 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14784 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14785 struct sk_buff *msg;
14787 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
14789 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14793 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
14794 rdev, dev, mac_addr, sinfo) < 0) {
14799 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14800 NL80211_MCGRP_MLME, gfp);
14802 EXPORT_SYMBOL(cfg80211_new_sta);
14804 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
14805 struct station_info *sinfo, gfp_t gfp)
14807 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14808 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14809 struct sk_buff *msg;
14810 struct station_info empty_sinfo = {};
14813 sinfo = &empty_sinfo;
14815 trace_cfg80211_del_sta(dev, mac_addr);
14817 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14819 cfg80211_sinfo_release_content(sinfo);
14823 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
14824 rdev, dev, mac_addr, sinfo) < 0) {
14829 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14830 NL80211_MCGRP_MLME, gfp);
14832 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
14834 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
14835 enum nl80211_connect_failed_reason reason,
14838 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14839 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14840 struct sk_buff *msg;
14843 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
14847 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
14853 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14854 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
14855 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
14856 goto nla_put_failure;
14858 genlmsg_end(msg, hdr);
14860 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14861 NL80211_MCGRP_MLME, gfp);
14867 EXPORT_SYMBOL(cfg80211_conn_failed);
14869 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
14870 const u8 *addr, gfp_t gfp)
14872 struct wireless_dev *wdev = dev->ieee80211_ptr;
14873 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14874 struct sk_buff *msg;
14876 u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid);
14881 msg = nlmsg_new(100, gfp);
14885 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14891 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14892 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14893 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14894 goto nla_put_failure;
14896 genlmsg_end(msg, hdr);
14897 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14905 bool cfg80211_rx_spurious_frame(struct net_device *dev,
14906 const u8 *addr, gfp_t gfp)
14908 struct wireless_dev *wdev = dev->ieee80211_ptr;
14911 trace_cfg80211_rx_spurious_frame(dev, addr);
14913 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14914 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
14915 trace_cfg80211_return_bool(false);
14918 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
14920 trace_cfg80211_return_bool(ret);
14923 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
14925 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
14926 const u8 *addr, gfp_t gfp)
14928 struct wireless_dev *wdev = dev->ieee80211_ptr;
14931 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
14933 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14934 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
14935 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
14936 trace_cfg80211_return_bool(false);
14939 ret = __nl80211_unexpected_frame(dev,
14940 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
14942 trace_cfg80211_return_bool(ret);
14945 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
14947 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
14948 struct wireless_dev *wdev, u32 nlportid,
14949 int freq, int sig_dbm,
14950 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
14952 struct net_device *netdev = wdev->netdev;
14953 struct sk_buff *msg;
14956 msg = nlmsg_new(100 + len, gfp);
14960 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14966 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14967 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14968 netdev->ifindex)) ||
14969 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14970 NL80211_ATTR_PAD) ||
14971 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14973 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14974 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14976 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
14977 goto nla_put_failure;
14979 genlmsg_end(msg, hdr);
14981 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14988 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
14989 const u8 *buf, size_t len, bool ack, gfp_t gfp)
14991 struct wiphy *wiphy = wdev->wiphy;
14992 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14993 struct net_device *netdev = wdev->netdev;
14994 struct sk_buff *msg;
14997 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
14999 msg = nlmsg_new(100 + len, gfp);
15003 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
15009 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15010 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
15011 netdev->ifindex)) ||
15012 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15013 NL80211_ATTR_PAD) ||
15014 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
15015 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
15016 NL80211_ATTR_PAD) ||
15017 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
15018 goto nla_put_failure;
15020 genlmsg_end(msg, hdr);
15022 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15023 NL80211_MCGRP_MLME, gfp);
15029 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
15031 static int __nl80211_rx_control_port(struct net_device *dev,
15032 struct sk_buff *skb,
15033 bool unencrypted, gfp_t gfp)
15035 struct wireless_dev *wdev = dev->ieee80211_ptr;
15036 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15037 struct ethhdr *ehdr = eth_hdr(skb);
15038 const u8 *addr = ehdr->h_source;
15039 u16 proto = be16_to_cpu(skb->protocol);
15040 struct sk_buff *msg;
15042 struct nlattr *frame;
15044 u32 nlportid = READ_ONCE(wdev->conn_owner_nlportid);
15049 msg = nlmsg_new(100 + skb->len, gfp);
15053 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONTROL_PORT_FRAME);
15059 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15060 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15061 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15062 NL80211_ATTR_PAD) ||
15063 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
15064 nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, proto) ||
15065 (unencrypted && nla_put_flag(msg,
15066 NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
15067 goto nla_put_failure;
15069 frame = nla_reserve(msg, NL80211_ATTR_FRAME, skb->len);
15071 goto nla_put_failure;
15073 skb_copy_bits(skb, 0, nla_data(frame), skb->len);
15074 genlmsg_end(msg, hdr);
15076 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15083 bool cfg80211_rx_control_port(struct net_device *dev,
15084 struct sk_buff *skb, bool unencrypted)
15088 trace_cfg80211_rx_control_port(dev, skb, unencrypted);
15089 ret = __nl80211_rx_control_port(dev, skb, unencrypted, GFP_ATOMIC);
15090 trace_cfg80211_return_bool(ret == 0);
15093 EXPORT_SYMBOL(cfg80211_rx_control_port);
15095 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
15096 const char *mac, gfp_t gfp)
15098 struct wireless_dev *wdev = dev->ieee80211_ptr;
15099 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15100 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15106 cb = (void **)msg->cb;
15108 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
15114 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15115 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
15116 goto nla_put_failure;
15118 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
15119 goto nla_put_failure;
15121 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
15123 goto nla_put_failure;
15133 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
15135 void **cb = (void **)msg->cb;
15136 struct cfg80211_registered_device *rdev = cb[2];
15138 nla_nest_end(msg, cb[1]);
15139 genlmsg_end(msg, cb[0]);
15141 memset(msg->cb, 0, sizeof(msg->cb));
15143 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15144 NL80211_MCGRP_MLME, gfp);
15147 void cfg80211_cqm_rssi_notify(struct net_device *dev,
15148 enum nl80211_cqm_rssi_threshold_event rssi_event,
15149 s32 rssi_level, gfp_t gfp)
15151 struct sk_buff *msg;
15152 struct wireless_dev *wdev = dev->ieee80211_ptr;
15153 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15155 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
15157 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
15158 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
15161 if (wdev->cqm_config) {
15162 wdev->cqm_config->last_rssi_event_value = rssi_level;
15164 cfg80211_cqm_rssi_update(rdev, dev);
15166 if (rssi_level == 0)
15167 rssi_level = wdev->cqm_config->last_rssi_event_value;
15170 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
15174 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
15176 goto nla_put_failure;
15178 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
15180 goto nla_put_failure;
15182 cfg80211_send_cqm(msg, gfp);
15189 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
15191 void cfg80211_cqm_txe_notify(struct net_device *dev,
15192 const u8 *peer, u32 num_packets,
15193 u32 rate, u32 intvl, gfp_t gfp)
15195 struct sk_buff *msg;
15197 msg = cfg80211_prepare_cqm(dev, peer, gfp);
15201 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
15202 goto nla_put_failure;
15204 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
15205 goto nla_put_failure;
15207 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
15208 goto nla_put_failure;
15210 cfg80211_send_cqm(msg, gfp);
15216 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
15218 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
15219 const u8 *peer, u32 num_packets, gfp_t gfp)
15221 struct sk_buff *msg;
15223 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
15225 msg = cfg80211_prepare_cqm(dev, peer, gfp);
15229 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
15230 goto nla_put_failure;
15232 cfg80211_send_cqm(msg, gfp);
15238 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
15240 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
15242 struct sk_buff *msg;
15244 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
15248 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
15249 goto nla_put_failure;
15251 cfg80211_send_cqm(msg, gfp);
15257 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
15259 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
15260 struct net_device *netdev, const u8 *bssid,
15261 const u8 *replay_ctr, gfp_t gfp)
15263 struct sk_buff *msg;
15264 struct nlattr *rekey_attr;
15267 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15271 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
15277 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15278 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15279 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
15280 goto nla_put_failure;
15282 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
15284 goto nla_put_failure;
15286 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
15287 NL80211_REPLAY_CTR_LEN, replay_ctr))
15288 goto nla_put_failure;
15290 nla_nest_end(msg, rekey_attr);
15292 genlmsg_end(msg, hdr);
15294 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15295 NL80211_MCGRP_MLME, gfp);
15302 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
15303 const u8 *replay_ctr, gfp_t gfp)
15305 struct wireless_dev *wdev = dev->ieee80211_ptr;
15306 struct wiphy *wiphy = wdev->wiphy;
15307 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15309 trace_cfg80211_gtk_rekey_notify(dev, bssid);
15310 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
15312 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
15315 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
15316 struct net_device *netdev, int index,
15317 const u8 *bssid, bool preauth, gfp_t gfp)
15319 struct sk_buff *msg;
15320 struct nlattr *attr;
15323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15327 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
15333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15334 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
15335 goto nla_put_failure;
15337 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
15339 goto nla_put_failure;
15341 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
15342 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
15344 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
15345 goto nla_put_failure;
15347 nla_nest_end(msg, attr);
15349 genlmsg_end(msg, hdr);
15351 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15352 NL80211_MCGRP_MLME, gfp);
15359 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
15360 const u8 *bssid, bool preauth, gfp_t gfp)
15362 struct wireless_dev *wdev = dev->ieee80211_ptr;
15363 struct wiphy *wiphy = wdev->wiphy;
15364 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15366 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
15367 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
15369 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
15371 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
15372 struct net_device *netdev,
15373 struct cfg80211_chan_def *chandef,
15375 enum nl80211_commands notif,
15378 struct sk_buff *msg;
15381 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15385 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
15391 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
15392 goto nla_put_failure;
15394 if (nl80211_send_chandef(msg, chandef))
15395 goto nla_put_failure;
15397 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
15398 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
15399 goto nla_put_failure;
15401 genlmsg_end(msg, hdr);
15403 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15404 NL80211_MCGRP_MLME, gfp);
15411 void cfg80211_ch_switch_notify(struct net_device *dev,
15412 struct cfg80211_chan_def *chandef)
15414 struct wireless_dev *wdev = dev->ieee80211_ptr;
15415 struct wiphy *wiphy = wdev->wiphy;
15416 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15418 ASSERT_WDEV_LOCK(wdev);
15420 trace_cfg80211_ch_switch_notify(dev, chandef);
15422 wdev->chandef = *chandef;
15423 wdev->preset_chandef = *chandef;
15424 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
15425 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
15427 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
15429 void cfg80211_ch_switch_started_notify(struct net_device *dev,
15430 struct cfg80211_chan_def *chandef,
15433 struct wireless_dev *wdev = dev->ieee80211_ptr;
15434 struct wiphy *wiphy = wdev->wiphy;
15435 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15437 trace_cfg80211_ch_switch_started_notify(dev, chandef);
15439 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
15440 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
15442 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
15445 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
15446 const struct cfg80211_chan_def *chandef,
15447 enum nl80211_radar_event event,
15448 struct net_device *netdev, gfp_t gfp)
15450 struct sk_buff *msg;
15453 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15457 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
15463 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
15464 goto nla_put_failure;
15466 /* NOP and radar events don't need a netdev parameter */
15468 struct wireless_dev *wdev = netdev->ieee80211_ptr;
15470 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15471 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15473 goto nla_put_failure;
15476 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
15477 goto nla_put_failure;
15479 if (nl80211_send_chandef(msg, chandef))
15480 goto nla_put_failure;
15482 genlmsg_end(msg, hdr);
15484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15485 NL80211_MCGRP_MLME, gfp);
15492 void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac,
15493 struct sta_opmode_info *sta_opmode,
15496 struct sk_buff *msg;
15497 struct wireless_dev *wdev = dev->ieee80211_ptr;
15498 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15504 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15508 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STA_OPMODE_CHANGED);
15514 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
15515 goto nla_put_failure;
15517 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
15518 goto nla_put_failure;
15520 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
15521 goto nla_put_failure;
15523 if ((sta_opmode->changed & STA_OPMODE_SMPS_MODE_CHANGED) &&
15524 nla_put_u8(msg, NL80211_ATTR_SMPS_MODE, sta_opmode->smps_mode))
15525 goto nla_put_failure;
15527 if ((sta_opmode->changed & STA_OPMODE_MAX_BW_CHANGED) &&
15528 nla_put_u8(msg, NL80211_ATTR_CHANNEL_WIDTH, sta_opmode->bw))
15529 goto nla_put_failure;
15531 if ((sta_opmode->changed & STA_OPMODE_N_SS_CHANGED) &&
15532 nla_put_u8(msg, NL80211_ATTR_NSS, sta_opmode->rx_nss))
15533 goto nla_put_failure;
15535 genlmsg_end(msg, hdr);
15537 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15538 NL80211_MCGRP_MLME, gfp);
15545 EXPORT_SYMBOL(cfg80211_sta_opmode_change_notify);
15547 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
15548 u64 cookie, bool acked, s32 ack_signal,
15549 bool is_valid_ack_signal, gfp_t gfp)
15551 struct wireless_dev *wdev = dev->ieee80211_ptr;
15552 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15553 struct sk_buff *msg;
15556 trace_cfg80211_probe_status(dev, addr, cookie, acked);
15558 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15563 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
15569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15570 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15571 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
15572 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
15573 NL80211_ATTR_PAD) ||
15574 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)) ||
15575 (is_valid_ack_signal && nla_put_s32(msg, NL80211_ATTR_ACK_SIGNAL,
15577 goto nla_put_failure;
15579 genlmsg_end(msg, hdr);
15581 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15582 NL80211_MCGRP_MLME, gfp);
15588 EXPORT_SYMBOL(cfg80211_probe_status);
15590 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
15591 const u8 *frame, size_t len,
15592 int freq, int sig_dbm)
15594 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15595 struct sk_buff *msg;
15597 struct cfg80211_beacon_registration *reg;
15599 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
15601 spin_lock_bh(&rdev->beacon_registrations_lock);
15602 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
15603 msg = nlmsg_new(len + 100, GFP_ATOMIC);
15605 spin_unlock_bh(&rdev->beacon_registrations_lock);
15609 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
15611 goto nla_put_failure;
15613 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15615 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
15617 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
15618 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
15619 goto nla_put_failure;
15621 genlmsg_end(msg, hdr);
15623 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
15625 spin_unlock_bh(&rdev->beacon_registrations_lock);
15629 spin_unlock_bh(&rdev->beacon_registrations_lock);
15632 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
15635 static int cfg80211_net_detect_results(struct sk_buff *msg,
15636 struct cfg80211_wowlan_wakeup *wakeup)
15638 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
15639 struct nlattr *nl_results, *nl_match, *nl_freqs;
15642 nl_results = nla_nest_start(
15643 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
15647 for (i = 0; i < nd->n_matches; i++) {
15648 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
15650 nl_match = nla_nest_start(msg, i);
15654 /* The SSID attribute is optional in nl80211, but for
15655 * simplicity reasons it's always present in the
15656 * cfg80211 structure. If a driver can't pass the
15657 * SSID, that needs to be changed. A zero length SSID
15658 * is still a valid SSID (wildcard), so it cannot be
15659 * used for this purpose.
15661 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
15662 match->ssid.ssid)) {
15663 nla_nest_cancel(msg, nl_match);
15667 if (match->n_channels) {
15668 nl_freqs = nla_nest_start(
15669 msg, NL80211_ATTR_SCAN_FREQUENCIES);
15671 nla_nest_cancel(msg, nl_match);
15675 for (j = 0; j < match->n_channels; j++) {
15676 if (nla_put_u32(msg, j, match->channels[j])) {
15677 nla_nest_cancel(msg, nl_freqs);
15678 nla_nest_cancel(msg, nl_match);
15683 nla_nest_end(msg, nl_freqs);
15686 nla_nest_end(msg, nl_match);
15690 nla_nest_end(msg, nl_results);
15694 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
15695 struct cfg80211_wowlan_wakeup *wakeup,
15698 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15699 struct sk_buff *msg;
15703 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
15706 size += wakeup->packet_present_len;
15708 msg = nlmsg_new(size, gfp);
15712 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
15716 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15717 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15721 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
15722 wdev->netdev->ifindex))
15726 struct nlattr *reasons;
15728 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
15732 if (wakeup->disconnect &&
15733 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
15735 if (wakeup->magic_pkt &&
15736 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
15738 if (wakeup->gtk_rekey_failure &&
15739 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
15741 if (wakeup->eap_identity_req &&
15742 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
15744 if (wakeup->four_way_handshake &&
15745 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
15747 if (wakeup->rfkill_release &&
15748 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
15751 if (wakeup->pattern_idx >= 0 &&
15752 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
15753 wakeup->pattern_idx))
15756 if (wakeup->tcp_match &&
15757 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
15760 if (wakeup->tcp_connlost &&
15761 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
15764 if (wakeup->tcp_nomoretokens &&
15766 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
15769 if (wakeup->packet) {
15770 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
15771 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
15773 if (!wakeup->packet_80211) {
15775 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
15777 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
15780 if (wakeup->packet_len &&
15781 nla_put_u32(msg, len_attr, wakeup->packet_len))
15784 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
15789 if (wakeup->net_detect &&
15790 cfg80211_net_detect_results(msg, wakeup))
15793 nla_nest_end(msg, reasons);
15796 genlmsg_end(msg, hdr);
15798 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15799 NL80211_MCGRP_MLME, gfp);
15805 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
15808 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
15809 enum nl80211_tdls_operation oper,
15810 u16 reason_code, gfp_t gfp)
15812 struct wireless_dev *wdev = dev->ieee80211_ptr;
15813 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15814 struct sk_buff *msg;
15817 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
15820 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15824 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
15830 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15831 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15832 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
15833 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
15834 (reason_code > 0 &&
15835 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
15836 goto nla_put_failure;
15838 genlmsg_end(msg, hdr);
15840 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15841 NL80211_MCGRP_MLME, gfp);
15847 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
15849 static int nl80211_netlink_notify(struct notifier_block * nb,
15850 unsigned long state,
15853 struct netlink_notify *notify = _notify;
15854 struct cfg80211_registered_device *rdev;
15855 struct wireless_dev *wdev;
15856 struct cfg80211_beacon_registration *reg, *tmp;
15858 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
15859 return NOTIFY_DONE;
15863 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
15864 struct cfg80211_sched_scan_request *sched_scan_req;
15866 list_for_each_entry_rcu(sched_scan_req,
15867 &rdev->sched_scan_req_list,
15869 if (sched_scan_req->owner_nlportid == notify->portid) {
15870 sched_scan_req->nl_owner_dead = true;
15871 schedule_work(&rdev->sched_scan_stop_wk);
15875 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15876 cfg80211_mlme_unregister_socket(wdev, notify->portid);
15878 if (wdev->owner_nlportid == notify->portid) {
15879 wdev->nl_owner_dead = true;
15880 schedule_work(&rdev->destroy_work);
15881 } else if (wdev->conn_owner_nlportid == notify->portid) {
15882 schedule_work(&wdev->disconnect_wk);
15886 spin_lock_bh(&rdev->beacon_registrations_lock);
15887 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
15889 if (reg->nlportid == notify->portid) {
15890 list_del(®->list);
15895 spin_unlock_bh(&rdev->beacon_registrations_lock);
15901 * It is possible that the user space process that is controlling the
15902 * indoor setting disappeared, so notify the regulatory core.
15904 regulatory_netlink_notify(notify->portid);
15908 static struct notifier_block nl80211_netlink_notifier = {
15909 .notifier_call = nl80211_netlink_notify,
15912 void cfg80211_ft_event(struct net_device *netdev,
15913 struct cfg80211_ft_event_params *ft_event)
15915 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
15916 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15917 struct sk_buff *msg;
15920 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
15922 if (!ft_event->target_ap)
15925 msg = nlmsg_new(100 + ft_event->ies_len + ft_event->ric_ies_len,
15930 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
15934 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15935 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15936 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
15939 if (ft_event->ies &&
15940 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
15942 if (ft_event->ric_ies &&
15943 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
15944 ft_event->ric_ies))
15947 genlmsg_end(msg, hdr);
15949 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15950 NL80211_MCGRP_MLME, GFP_KERNEL);
15955 EXPORT_SYMBOL(cfg80211_ft_event);
15957 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
15959 struct cfg80211_registered_device *rdev;
15960 struct sk_buff *msg;
15964 rdev = wiphy_to_rdev(wdev->wiphy);
15965 if (!rdev->crit_proto_nlportid)
15968 nlportid = rdev->crit_proto_nlportid;
15969 rdev->crit_proto_nlportid = 0;
15971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15975 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
15977 goto nla_put_failure;
15979 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15980 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15982 goto nla_put_failure;
15984 genlmsg_end(msg, hdr);
15986 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15992 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
15994 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
15996 struct wiphy *wiphy = wdev->wiphy;
15997 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15998 struct sk_buff *msg;
16001 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
16005 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
16009 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16010 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
16011 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
16015 genlmsg_end(msg, hdr);
16017 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
16018 NL80211_MCGRP_MLME, GFP_KERNEL);
16024 int cfg80211_external_auth_request(struct net_device *dev,
16025 struct cfg80211_external_auth_params *params,
16028 struct wireless_dev *wdev = dev->ieee80211_ptr;
16029 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
16030 struct sk_buff *msg;
16033 if (!wdev->conn_owner_nlportid)
16036 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
16040 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_EXTERNAL_AUTH);
16042 goto nla_put_failure;
16044 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
16045 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
16046 nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, params->key_mgmt_suite) ||
16047 nla_put_u32(msg, NL80211_ATTR_EXTERNAL_AUTH_ACTION,
16049 nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, params->bssid) ||
16050 nla_put(msg, NL80211_ATTR_SSID, params->ssid.ssid_len,
16051 params->ssid.ssid))
16052 goto nla_put_failure;
16054 genlmsg_end(msg, hdr);
16055 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
16056 wdev->conn_owner_nlportid);
16063 EXPORT_SYMBOL(cfg80211_external_auth_request);
16065 /* initialisation/exit functions */
16067 int __init nl80211_init(void)
16071 err = genl_register_family(&nl80211_fam);
16075 err = netlink_register_notifier(&nl80211_netlink_notifier);
16081 genl_unregister_family(&nl80211_fam);
16085 void nl80211_exit(void)
16087 netlink_unregister_notifier(&nl80211_netlink_notifier);
16088 genl_unregister_family(&nl80211_fam);