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 2015-2016 Intel Deutschland GmbH
10 #include <linux/module.h>
11 #include <linux/err.h>
12 #include <linux/slab.h>
13 #include <linux/list.h>
14 #include <linux/if_ether.h>
15 #include <linux/ieee80211.h>
16 #include <linux/nl80211.h>
17 #include <linux/rtnetlink.h>
18 #include <linux/netlink.h>
19 #include <linux/nospec.h>
20 #include <linux/etherdevice.h>
21 #include <net/net_namespace.h>
22 #include <net/genetlink.h>
23 #include <net/cfg80211.h>
25 #include <net/inet_connection_sock.h>
31 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
32 struct genl_info *info,
33 struct cfg80211_crypto_settings *settings,
36 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
37 struct genl_info *info);
38 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
39 struct genl_info *info);
41 /* the netlink family */
42 static struct genl_family nl80211_fam = {
43 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
44 .name = NL80211_GENL_NAME, /* have users key off the name instead */
45 .hdrsize = 0, /* no private header */
46 .version = 1, /* no particular meaning now */
47 .maxattr = NL80211_ATTR_MAX,
49 .pre_doit = nl80211_pre_doit,
50 .post_doit = nl80211_post_doit,
53 /* multicast groups */
54 enum nl80211_multicast_groups {
57 NL80211_MCGRP_REGULATORY,
61 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
64 static const struct genl_multicast_group nl80211_mcgrps[] = {
65 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
66 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
67 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
68 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
69 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
70 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
71 #ifdef CONFIG_NL80211_TESTMODE
72 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
76 /* returns ERR_PTR values */
77 static struct wireless_dev *
78 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
80 struct cfg80211_registered_device *rdev;
81 struct wireless_dev *result = NULL;
82 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
83 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
90 if (!have_ifidx && !have_wdev_id)
91 return ERR_PTR(-EINVAL);
94 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
96 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
97 wiphy_idx = wdev_id >> 32;
100 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
101 struct wireless_dev *wdev;
103 if (wiphy_net(&rdev->wiphy) != netns)
106 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
109 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
110 if (have_ifidx && wdev->netdev &&
111 wdev->netdev->ifindex == ifidx) {
115 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
127 return ERR_PTR(-ENODEV);
130 static struct cfg80211_registered_device *
131 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
133 struct cfg80211_registered_device *rdev = NULL, *tmp;
134 struct net_device *netdev;
138 if (!attrs[NL80211_ATTR_WIPHY] &&
139 !attrs[NL80211_ATTR_IFINDEX] &&
140 !attrs[NL80211_ATTR_WDEV])
141 return ERR_PTR(-EINVAL);
143 if (attrs[NL80211_ATTR_WIPHY])
144 rdev = cfg80211_rdev_by_wiphy_idx(
145 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
147 if (attrs[NL80211_ATTR_WDEV]) {
148 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
149 struct wireless_dev *wdev;
152 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
154 /* make sure wdev exists */
155 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
156 if (wdev->identifier != (u32)wdev_id)
165 if (rdev && tmp != rdev)
166 return ERR_PTR(-EINVAL);
171 if (attrs[NL80211_ATTR_IFINDEX]) {
172 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
174 netdev = __dev_get_by_index(netns, ifindex);
176 if (netdev->ieee80211_ptr)
178 netdev->ieee80211_ptr->wiphy);
182 /* not wireless device -- return error */
184 return ERR_PTR(-EINVAL);
186 /* mismatch -- return error */
187 if (rdev && tmp != rdev)
188 return ERR_PTR(-EINVAL);
195 return ERR_PTR(-ENODEV);
197 if (netns != wiphy_net(&rdev->wiphy))
198 return ERR_PTR(-ENODEV);
204 * This function returns a pointer to the driver
205 * that the genl_info item that is passed refers to.
207 * The result of this can be a PTR_ERR and hence must
208 * be checked with IS_ERR() for errors.
210 static struct cfg80211_registered_device *
211 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
213 return __cfg80211_rdev_from_attrs(netns, info->attrs);
216 static int validate_beacon_head(const struct nlattr *attr)
218 const u8 *data = nla_data(attr);
219 unsigned int len = nla_len(attr);
220 const struct element *elem;
221 const struct ieee80211_mgmt *mgmt = (void *)data;
222 unsigned int fixedlen = offsetof(struct ieee80211_mgmt,
228 if (ieee80211_hdrlen(mgmt->frame_control) !=
229 offsetof(struct ieee80211_mgmt, u.beacon))
235 for_each_element(elem, data, len) {
239 if (for_each_element_completed(elem, data, len))
246 /* policy for the attributes */
247 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
248 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
249 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
251 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
254 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
255 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
256 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
257 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
259 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
260 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
261 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
262 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
263 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
264 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
266 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
267 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
268 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
270 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
271 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
273 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
274 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
275 .len = WLAN_MAX_KEY_LEN },
276 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
277 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
278 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
279 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
280 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
282 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
283 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
284 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_DATA_LEN },
286 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_DATA_LEN },
288 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
289 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
290 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
291 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
292 .len = NL80211_MAX_SUPP_RATES },
293 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
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_BINARY,
301 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
302 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
304 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
305 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
306 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
307 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
308 .len = NL80211_MAX_SUPP_RATES },
309 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
311 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
312 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
314 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
316 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
317 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
318 .len = 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] = { .type = NLA_U32 },
329 [NL80211_ATTR_STA_FLAGS2] = {
330 .len = sizeof(struct nl80211_sta_flag_update),
332 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
333 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
334 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
335 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
336 [NL80211_ATTR_STATUS_CODE] = { .type = NLA_U16 },
337 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
338 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
339 [NL80211_ATTR_PID] = { .type = NLA_U32 },
340 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
341 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
342 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
343 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
344 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
345 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
346 .len = IEEE80211_MAX_DATA_LEN },
347 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
348 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
349 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
350 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
351 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
352 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
353 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
354 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
355 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
356 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
357 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
358 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
359 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
360 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
361 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
362 [NL80211_ATTR_MEASUREMENT_DURATION] = { .type = NLA_U16 },
363 [NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY] = { .type = NLA_FLAG },
364 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
365 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
366 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
367 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
368 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
369 .len = IEEE80211_MAX_DATA_LEN },
370 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
371 .len = IEEE80211_MAX_DATA_LEN },
372 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
373 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
374 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
375 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
376 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
377 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
378 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
379 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
380 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
381 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
382 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
383 .len = IEEE80211_MAX_DATA_LEN },
384 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
385 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
386 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
387 .len = NL80211_HT_CAPABILITY_LEN
389 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
390 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
391 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
392 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
393 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
394 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
395 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
396 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
397 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
398 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
399 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
400 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
401 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
402 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
403 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
404 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
405 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
406 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
407 .len = NL80211_VHT_CAPABILITY_LEN,
409 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
410 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
411 .len = IEEE80211_MAX_DATA_LEN },
412 [NL80211_ATTR_CRIT_PROT_ID] = { .type = NLA_U16 },
413 [NL80211_ATTR_MAX_CRIT_PROT_DURATION] = { .type = NLA_U16 },
414 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
415 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
416 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
417 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
418 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
419 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
420 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
421 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
422 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
423 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
424 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
425 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
426 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
427 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
428 .len = IEEE80211_QOS_MAP_LEN_MAX },
429 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
430 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
431 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
432 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
433 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
434 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
435 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
436 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
437 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
438 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
439 [NL80211_ATTR_OPER_CLASS] = { .type = NLA_U8 },
440 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
441 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
442 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
443 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
444 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
445 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
446 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
447 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
448 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
449 .len = VHT_MUMIMO_GROUPS_DATA_LEN
451 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
452 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
453 [NL80211_ATTR_NAN_DUAL] = { .type = NLA_U8 },
454 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
455 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
458 /* policy for the key attributes */
459 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
460 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
461 [NL80211_KEY_IDX] = { .type = NLA_U8 },
462 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
463 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
464 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
465 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
466 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
467 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
470 /* policy for the key default flags */
471 static const struct nla_policy
472 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
473 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
474 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
477 /* policy for WoWLAN attributes */
478 static const struct nla_policy
479 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
480 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
481 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
482 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
483 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
484 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
485 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
486 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
487 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
488 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
489 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
492 static const struct nla_policy
493 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
494 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
495 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
496 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
497 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
498 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
499 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
500 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
501 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
503 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
504 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
506 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
507 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
508 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
511 /* policy for coalesce rule attributes */
512 static const struct nla_policy
513 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
514 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
515 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
516 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
519 /* policy for GTK rekey offload attributes */
520 static const struct nla_policy
521 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
522 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
523 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
524 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
527 static const struct nla_policy
528 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
529 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
530 .len = IEEE80211_MAX_SSID_LEN },
531 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
534 static const struct nla_policy
535 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
536 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
537 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
540 static const struct nla_policy
541 nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
542 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
543 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
544 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
545 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
549 /* policy for NAN function attributes */
550 static const struct nla_policy
551 nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
552 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
553 [NL80211_NAN_FUNC_SERVICE_ID] = {
554 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
555 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
556 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
557 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
558 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
559 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
560 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
561 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
562 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
563 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
564 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
565 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
566 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
567 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
568 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
569 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
572 /* policy for Service Response Filter attributes */
573 static const struct nla_policy
574 nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
575 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
576 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
577 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
578 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
579 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
582 /* policy for packet pattern attributes */
583 static const struct nla_policy
584 nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
585 [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
586 [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
587 [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
590 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
591 struct netlink_callback *cb,
592 struct cfg80211_registered_device **rdev,
593 struct wireless_dev **wdev)
598 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
599 nl80211_fam.attrbuf, nl80211_fam.maxattr,
604 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
605 nl80211_fam.attrbuf);
607 return PTR_ERR(*wdev);
608 *rdev = wiphy_to_rdev((*wdev)->wiphy);
609 /* 0 is the first index - add 1 to parse only once */
610 cb->args[0] = (*rdev)->wiphy_idx + 1;
611 cb->args[1] = (*wdev)->identifier;
613 /* subtract the 1 again here */
614 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
615 struct wireless_dev *tmp;
619 *rdev = wiphy_to_rdev(wiphy);
622 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
623 if (tmp->identifier == cb->args[1]) {
637 static bool is_valid_ie_attr(const struct nlattr *attr)
645 pos = nla_data(attr);
666 /* message building helper */
667 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
670 /* since there is no private header just add the generic one */
671 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
674 static int nl80211_msg_put_channel(struct sk_buff *msg,
675 struct ieee80211_channel *chan,
678 /* Some channels must be completely excluded from the
679 * list to protect old user-space tools from breaking
681 if (!large && chan->flags &
682 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
685 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
687 goto nla_put_failure;
689 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
690 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
691 goto nla_put_failure;
692 if (chan->flags & IEEE80211_CHAN_NO_IR) {
693 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
694 goto nla_put_failure;
695 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
696 goto nla_put_failure;
698 if (chan->flags & IEEE80211_CHAN_RADAR) {
699 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
700 goto nla_put_failure;
704 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
706 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
708 goto nla_put_failure;
709 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
711 goto nla_put_failure;
713 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
715 goto nla_put_failure;
720 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
721 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
722 goto nla_put_failure;
723 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
724 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
725 goto nla_put_failure;
726 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
727 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
728 goto nla_put_failure;
729 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
730 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
731 goto nla_put_failure;
732 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
733 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
734 goto nla_put_failure;
735 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
736 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
737 goto nla_put_failure;
738 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
739 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
740 goto nla_put_failure;
741 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
742 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
743 goto nla_put_failure;
746 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
747 DBM_TO_MBM(chan->max_power)))
748 goto nla_put_failure;
756 /* netlink command implementations */
763 bool def_uni, def_multi;
766 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
768 struct nlattr *tb[NL80211_KEY_MAX + 1];
769 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
774 k->def = !!tb[NL80211_KEY_DEFAULT];
775 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
784 if (tb[NL80211_KEY_IDX])
785 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
787 if (tb[NL80211_KEY_DATA]) {
788 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
789 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
792 if (tb[NL80211_KEY_SEQ]) {
793 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
794 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
797 if (tb[NL80211_KEY_CIPHER])
798 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
800 if (tb[NL80211_KEY_TYPE]) {
801 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
802 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
806 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
807 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
809 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
810 tb[NL80211_KEY_DEFAULT_TYPES],
811 nl80211_key_default_policy);
815 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
816 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
822 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
824 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
825 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
826 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
829 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
830 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
831 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
834 if (info->attrs[NL80211_ATTR_KEY_IDX])
835 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
837 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
838 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
840 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
841 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
850 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
851 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
852 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
856 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
857 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
858 int err = nla_parse_nested(
859 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
860 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
861 nl80211_key_default_policy);
865 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
866 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
872 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
876 memset(k, 0, sizeof(*k));
880 if (info->attrs[NL80211_ATTR_KEY])
881 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
883 err = nl80211_parse_key_old(info, k);
888 if (k->def && k->defmgmt)
892 if (k->def_uni || !k->def_multi)
898 if (k->idx < 4 || k->idx > 5)
901 if (k->idx < 0 || k->idx > 3)
904 if (k->idx < 0 || k->idx > 5)
912 static struct cfg80211_cached_keys *
913 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
914 struct nlattr *keys, bool *no_ht)
916 struct key_parse parse;
918 struct cfg80211_cached_keys *result;
919 int rem, err, def = 0;
920 bool have_key = false;
922 nla_for_each_nested(key, keys, rem) {
930 result = kzalloc(sizeof(*result), GFP_KERNEL);
932 return ERR_PTR(-ENOMEM);
936 nla_for_each_nested(key, keys, rem) {
937 memset(&parse, 0, sizeof(parse));
940 err = nl80211_parse_key_new(key, &parse);
946 if (parse.idx < 0 || parse.idx > 3)
952 result->def = parse.idx;
953 if (!parse.def_uni || !parse.def_multi)
955 } else if (parse.defmgmt)
957 err = cfg80211_validate_key_settings(rdev, &parse.p,
958 parse.idx, false, NULL);
961 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
962 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
966 result->params[parse.idx].cipher = parse.p.cipher;
967 result->params[parse.idx].key_len = parse.p.key_len;
968 result->params[parse.idx].key = result->data[parse.idx];
969 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
971 /* must be WEP key if we got here */
976 if (result->def < 0) {
987 static int nl80211_key_allowed(struct wireless_dev *wdev)
989 ASSERT_WDEV_LOCK(wdev);
991 switch (wdev->iftype) {
992 case NL80211_IFTYPE_AP:
993 case NL80211_IFTYPE_AP_VLAN:
994 case NL80211_IFTYPE_P2P_GO:
995 case NL80211_IFTYPE_MESH_POINT:
997 case NL80211_IFTYPE_ADHOC:
998 case NL80211_IFTYPE_STATION:
999 case NL80211_IFTYPE_P2P_CLIENT:
1000 if (!wdev->current_bss)
1003 case NL80211_IFTYPE_UNSPECIFIED:
1004 case NL80211_IFTYPE_OCB:
1005 case NL80211_IFTYPE_MONITOR:
1006 case NL80211_IFTYPE_NAN:
1007 case NL80211_IFTYPE_P2P_DEVICE:
1008 case NL80211_IFTYPE_WDS:
1009 case NUM_NL80211_IFTYPES:
1016 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
1019 struct ieee80211_channel *chan;
1023 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
1024 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
1029 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
1031 struct nlattr *nl_modes = nla_nest_start(msg, attr);
1035 goto nla_put_failure;
1039 if ((ifmodes & 1) && nla_put_flag(msg, i))
1040 goto nla_put_failure;
1045 nla_nest_end(msg, nl_modes);
1052 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
1053 struct sk_buff *msg,
1056 struct nlattr *nl_combis;
1059 nl_combis = nla_nest_start(msg,
1060 NL80211_ATTR_INTERFACE_COMBINATIONS);
1062 goto nla_put_failure;
1064 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1065 const struct ieee80211_iface_combination *c;
1066 struct nlattr *nl_combi, *nl_limits;
1068 c = &wiphy->iface_combinations[i];
1070 nl_combi = nla_nest_start(msg, i + 1);
1072 goto nla_put_failure;
1074 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1076 goto nla_put_failure;
1078 for (j = 0; j < c->n_limits; j++) {
1079 struct nlattr *nl_limit;
1081 nl_limit = nla_nest_start(msg, j + 1);
1083 goto nla_put_failure;
1084 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1086 goto nla_put_failure;
1087 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1088 c->limits[j].types))
1089 goto nla_put_failure;
1090 nla_nest_end(msg, nl_limit);
1093 nla_nest_end(msg, nl_limits);
1095 if (c->beacon_int_infra_match &&
1096 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1097 goto nla_put_failure;
1098 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1099 c->num_different_channels) ||
1100 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1102 goto nla_put_failure;
1104 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1105 c->radar_detect_widths) ||
1106 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1107 c->radar_detect_regions)))
1108 goto nla_put_failure;
1110 nla_nest_end(msg, nl_combi);
1113 nla_nest_end(msg, nl_combis);
1121 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1122 struct sk_buff *msg)
1124 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1125 struct nlattr *nl_tcp;
1130 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1134 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1135 tcp->data_payload_max))
1138 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1139 tcp->data_payload_max))
1142 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1145 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1146 sizeof(*tcp->tok), tcp->tok))
1149 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1150 tcp->data_interval_max))
1153 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1154 tcp->wake_payload_max))
1157 nla_nest_end(msg, nl_tcp);
1161 static int nl80211_send_wowlan(struct sk_buff *msg,
1162 struct cfg80211_registered_device *rdev,
1165 struct nlattr *nl_wowlan;
1167 if (!rdev->wiphy.wowlan)
1170 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1174 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1175 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1176 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1177 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1178 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1179 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1180 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1181 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1182 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1183 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1184 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1185 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1186 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1187 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1188 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1189 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1192 if (rdev->wiphy.wowlan->n_patterns) {
1193 struct nl80211_pattern_support pat = {
1194 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1195 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1196 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1197 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1200 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1205 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1206 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1207 rdev->wiphy.wowlan->max_nd_match_sets))
1210 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1213 nla_nest_end(msg, nl_wowlan);
1219 static int nl80211_send_coalesce(struct sk_buff *msg,
1220 struct cfg80211_registered_device *rdev)
1222 struct nl80211_coalesce_rule_support rule;
1224 if (!rdev->wiphy.coalesce)
1227 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1228 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1229 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1230 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1231 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1232 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1234 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1240 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1241 struct ieee80211_supported_band *sband)
1243 struct nlattr *nl_rates, *nl_rate;
1244 struct ieee80211_rate *rate;
1248 if (sband->ht_cap.ht_supported &&
1249 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1250 sizeof(sband->ht_cap.mcs),
1251 &sband->ht_cap.mcs) ||
1252 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1253 sband->ht_cap.cap) ||
1254 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1255 sband->ht_cap.ampdu_factor) ||
1256 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1257 sband->ht_cap.ampdu_density)))
1261 if (sband->vht_cap.vht_supported &&
1262 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1263 sizeof(sband->vht_cap.vht_mcs),
1264 &sband->vht_cap.vht_mcs) ||
1265 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1266 sband->vht_cap.cap)))
1270 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1274 for (i = 0; i < sband->n_bitrates; i++) {
1275 nl_rate = nla_nest_start(msg, i);
1279 rate = &sband->bitrates[i];
1280 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1283 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1285 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1288 nla_nest_end(msg, nl_rate);
1291 nla_nest_end(msg, nl_rates);
1297 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1298 const struct ieee80211_txrx_stypes *mgmt_stypes)
1301 struct nlattr *nl_ftypes, *nl_ifs;
1302 enum nl80211_iftype ift;
1308 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1312 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1313 nl_ftypes = nla_nest_start(msg, ift);
1317 stypes = mgmt_stypes[ift].tx;
1320 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1321 (i << 4) | IEEE80211_FTYPE_MGMT))
1326 nla_nest_end(msg, nl_ftypes);
1329 nla_nest_end(msg, nl_ifs);
1331 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1335 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1336 nl_ftypes = nla_nest_start(msg, ift);
1340 stypes = mgmt_stypes[ift].rx;
1343 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1344 (i << 4) | IEEE80211_FTYPE_MGMT))
1349 nla_nest_end(msg, nl_ftypes);
1351 nla_nest_end(msg, nl_ifs);
1356 struct nl80211_dump_wiphy_state {
1359 long split_start, band_start, chan_start, capa_start;
1363 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1364 enum nl80211_commands cmd,
1365 struct sk_buff *msg, u32 portid, u32 seq,
1366 int flags, struct nl80211_dump_wiphy_state *state)
1369 struct nlattr *nl_bands, *nl_band;
1370 struct nlattr *nl_freqs, *nl_freq;
1371 struct nlattr *nl_cmds;
1372 enum nl80211_band band;
1373 struct ieee80211_channel *chan;
1375 const struct ieee80211_txrx_stypes *mgmt_stypes =
1376 rdev->wiphy.mgmt_stypes;
1379 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1383 if (WARN_ON(!state))
1386 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1387 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1388 wiphy_name(&rdev->wiphy)) ||
1389 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1390 cfg80211_rdev_list_generation))
1391 goto nla_put_failure;
1393 if (cmd != NL80211_CMD_NEW_WIPHY)
1396 switch (state->split_start) {
1398 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1399 rdev->wiphy.retry_short) ||
1400 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1401 rdev->wiphy.retry_long) ||
1402 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1403 rdev->wiphy.frag_threshold) ||
1404 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1405 rdev->wiphy.rts_threshold) ||
1406 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1407 rdev->wiphy.coverage_class) ||
1408 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1409 rdev->wiphy.max_scan_ssids) ||
1410 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1411 rdev->wiphy.max_sched_scan_ssids) ||
1412 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1413 rdev->wiphy.max_scan_ie_len) ||
1414 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1415 rdev->wiphy.max_sched_scan_ie_len) ||
1416 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1417 rdev->wiphy.max_match_sets) ||
1418 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1419 rdev->wiphy.max_sched_scan_plans) ||
1420 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1421 rdev->wiphy.max_sched_scan_plan_interval) ||
1422 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1423 rdev->wiphy.max_sched_scan_plan_iterations))
1424 goto nla_put_failure;
1426 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1427 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1428 goto nla_put_failure;
1429 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1430 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1431 goto nla_put_failure;
1432 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1433 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1434 goto nla_put_failure;
1435 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1436 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1437 goto nla_put_failure;
1438 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1439 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1440 goto nla_put_failure;
1441 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1442 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1443 goto nla_put_failure;
1444 state->split_start++;
1448 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1449 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1450 rdev->wiphy.cipher_suites))
1451 goto nla_put_failure;
1453 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1454 rdev->wiphy.max_num_pmkids))
1455 goto nla_put_failure;
1457 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1458 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1459 goto nla_put_failure;
1461 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1462 rdev->wiphy.available_antennas_tx) ||
1463 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1464 rdev->wiphy.available_antennas_rx))
1465 goto nla_put_failure;
1467 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1468 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1469 rdev->wiphy.probe_resp_offload))
1470 goto nla_put_failure;
1472 if ((rdev->wiphy.available_antennas_tx ||
1473 rdev->wiphy.available_antennas_rx) &&
1474 rdev->ops->get_antenna) {
1475 u32 tx_ant = 0, rx_ant = 0;
1478 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1480 if (nla_put_u32(msg,
1481 NL80211_ATTR_WIPHY_ANTENNA_TX,
1484 NL80211_ATTR_WIPHY_ANTENNA_RX,
1486 goto nla_put_failure;
1490 state->split_start++;
1494 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1495 rdev->wiphy.interface_modes))
1496 goto nla_put_failure;
1497 state->split_start++;
1501 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1503 goto nla_put_failure;
1505 for (band = state->band_start;
1506 band < NUM_NL80211_BANDS; band++) {
1507 struct ieee80211_supported_band *sband;
1509 sband = rdev->wiphy.bands[band];
1514 nl_band = nla_nest_start(msg, band);
1516 goto nla_put_failure;
1518 switch (state->chan_start) {
1520 if (nl80211_send_band_rateinfo(msg, sband))
1521 goto nla_put_failure;
1522 state->chan_start++;
1526 /* add frequencies */
1527 nl_freqs = nla_nest_start(
1528 msg, NL80211_BAND_ATTR_FREQS);
1530 goto nla_put_failure;
1532 for (i = state->chan_start - 1;
1533 i < sband->n_channels;
1535 nl_freq = nla_nest_start(msg, i);
1537 goto nla_put_failure;
1539 chan = &sband->channels[i];
1541 if (nl80211_msg_put_channel(
1544 goto nla_put_failure;
1546 nla_nest_end(msg, nl_freq);
1550 if (i < sband->n_channels)
1551 state->chan_start = i + 2;
1553 state->chan_start = 0;
1554 nla_nest_end(msg, nl_freqs);
1557 nla_nest_end(msg, nl_band);
1560 /* start again here */
1561 if (state->chan_start)
1566 nla_nest_end(msg, nl_bands);
1568 if (band < NUM_NL80211_BANDS)
1569 state->band_start = band + 1;
1571 state->band_start = 0;
1573 /* if bands & channels are done, continue outside */
1574 if (state->band_start == 0 && state->chan_start == 0)
1575 state->split_start++;
1579 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1581 goto nla_put_failure;
1584 #define CMD(op, n) \
1586 if (rdev->ops->op) { \
1588 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1589 goto nla_put_failure; \
1593 CMD(add_virtual_intf, NEW_INTERFACE);
1594 CMD(change_virtual_intf, SET_INTERFACE);
1595 CMD(add_key, NEW_KEY);
1596 CMD(start_ap, START_AP);
1597 CMD(add_station, NEW_STATION);
1598 CMD(add_mpath, NEW_MPATH);
1599 CMD(update_mesh_config, SET_MESH_CONFIG);
1600 CMD(change_bss, SET_BSS);
1601 CMD(auth, AUTHENTICATE);
1602 CMD(assoc, ASSOCIATE);
1603 CMD(deauth, DEAUTHENTICATE);
1604 CMD(disassoc, DISASSOCIATE);
1605 CMD(join_ibss, JOIN_IBSS);
1606 CMD(join_mesh, JOIN_MESH);
1607 CMD(set_pmksa, SET_PMKSA);
1608 CMD(del_pmksa, DEL_PMKSA);
1609 CMD(flush_pmksa, FLUSH_PMKSA);
1610 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1611 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1612 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1613 CMD(mgmt_tx, FRAME);
1614 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1615 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1617 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1618 goto nla_put_failure;
1620 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1621 rdev->ops->join_mesh) {
1623 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1624 goto nla_put_failure;
1626 CMD(set_wds_peer, SET_WDS_PEER);
1627 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1628 CMD(tdls_mgmt, TDLS_MGMT);
1629 CMD(tdls_oper, TDLS_OPER);
1631 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1632 CMD(sched_scan_start, START_SCHED_SCAN);
1633 CMD(probe_client, PROBE_CLIENT);
1634 CMD(set_noack_map, SET_NOACK_MAP);
1635 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1637 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1638 goto nla_put_failure;
1640 CMD(start_p2p_device, START_P2P_DEVICE);
1641 CMD(set_mcast_rate, SET_MCAST_RATE);
1642 #ifdef CONFIG_NL80211_TESTMODE
1643 CMD(testmode_cmd, TESTMODE);
1646 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1647 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1648 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1649 CMD(channel_switch, CHANNEL_SWITCH);
1650 CMD(set_qos_map, SET_QOS_MAP);
1651 if (rdev->wiphy.features &
1652 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1653 CMD(add_tx_ts, ADD_TX_TS);
1655 /* add into the if now */
1658 if (rdev->ops->connect || rdev->ops->auth) {
1660 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1661 goto nla_put_failure;
1664 if (rdev->ops->disconnect || rdev->ops->deauth) {
1666 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1667 goto nla_put_failure;
1670 nla_nest_end(msg, nl_cmds);
1671 state->split_start++;
1675 if (rdev->ops->remain_on_channel &&
1676 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1678 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1679 rdev->wiphy.max_remain_on_channel_duration))
1680 goto nla_put_failure;
1682 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1683 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1684 goto nla_put_failure;
1686 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1687 goto nla_put_failure;
1688 state->split_start++;
1693 if (nl80211_send_wowlan(msg, rdev, state->split))
1694 goto nla_put_failure;
1695 state->split_start++;
1699 state->split_start++;
1702 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1703 rdev->wiphy.software_iftypes))
1704 goto nla_put_failure;
1706 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1708 goto nla_put_failure;
1710 state->split_start++;
1714 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1715 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1716 rdev->wiphy.ap_sme_capa))
1717 goto nla_put_failure;
1719 features = rdev->wiphy.features;
1721 * We can only add the per-channel limit information if the
1722 * dump is split, otherwise it makes it too big. Therefore
1723 * only advertise it in that case.
1726 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1727 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1728 goto nla_put_failure;
1730 if (rdev->wiphy.ht_capa_mod_mask &&
1731 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1732 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1733 rdev->wiphy.ht_capa_mod_mask))
1734 goto nla_put_failure;
1736 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1737 rdev->wiphy.max_acl_mac_addrs &&
1738 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1739 rdev->wiphy.max_acl_mac_addrs))
1740 goto nla_put_failure;
1743 * Any information below this point is only available to
1744 * applications that can deal with it being split. This
1745 * helps ensure that newly added capabilities don't break
1746 * older tools by overrunning their buffers.
1748 * We still increment split_start so that in the split
1749 * case we'll continue with more data in the next round,
1750 * but break unconditionally so unsplit data stops here.
1753 state->split_start++;
1755 state->split_start = 0;
1758 if (rdev->wiphy.extended_capabilities &&
1759 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1760 rdev->wiphy.extended_capabilities_len,
1761 rdev->wiphy.extended_capabilities) ||
1762 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1763 rdev->wiphy.extended_capabilities_len,
1764 rdev->wiphy.extended_capabilities_mask)))
1765 goto nla_put_failure;
1767 if (rdev->wiphy.vht_capa_mod_mask &&
1768 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1769 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1770 rdev->wiphy.vht_capa_mod_mask))
1771 goto nla_put_failure;
1773 state->split_start++;
1776 if (nl80211_send_coalesce(msg, rdev))
1777 goto nla_put_failure;
1779 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1780 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1781 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1782 goto nla_put_failure;
1784 if (rdev->wiphy.max_ap_assoc_sta &&
1785 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1786 rdev->wiphy.max_ap_assoc_sta))
1787 goto nla_put_failure;
1789 state->split_start++;
1792 if (rdev->wiphy.n_vendor_commands) {
1793 const struct nl80211_vendor_cmd_info *info;
1794 struct nlattr *nested;
1796 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1798 goto nla_put_failure;
1800 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1801 info = &rdev->wiphy.vendor_commands[i].info;
1802 if (nla_put(msg, i + 1, sizeof(*info), info))
1803 goto nla_put_failure;
1805 nla_nest_end(msg, nested);
1808 if (rdev->wiphy.n_vendor_events) {
1809 const struct nl80211_vendor_cmd_info *info;
1810 struct nlattr *nested;
1812 nested = nla_nest_start(msg,
1813 NL80211_ATTR_VENDOR_EVENTS);
1815 goto nla_put_failure;
1817 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1818 info = &rdev->wiphy.vendor_events[i];
1819 if (nla_put(msg, i + 1, sizeof(*info), info))
1820 goto nla_put_failure;
1822 nla_nest_end(msg, nested);
1824 state->split_start++;
1827 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1828 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1829 rdev->wiphy.max_num_csa_counters))
1830 goto nla_put_failure;
1832 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1833 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1834 goto nla_put_failure;
1836 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1837 sizeof(rdev->wiphy.ext_features),
1838 rdev->wiphy.ext_features))
1839 goto nla_put_failure;
1841 if (rdev->wiphy.bss_select_support) {
1842 struct nlattr *nested;
1843 u32 bss_select_support = rdev->wiphy.bss_select_support;
1845 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1847 goto nla_put_failure;
1850 while (bss_select_support) {
1851 if ((bss_select_support & 1) &&
1852 nla_put_flag(msg, i))
1853 goto nla_put_failure;
1855 bss_select_support >>= 1;
1857 nla_nest_end(msg, nested);
1860 state->split_start++;
1863 if (rdev->wiphy.num_iftype_ext_capab &&
1864 rdev->wiphy.iftype_ext_capab) {
1865 struct nlattr *nested_ext_capab, *nested;
1867 nested = nla_nest_start(msg,
1868 NL80211_ATTR_IFTYPE_EXT_CAPA);
1870 goto nla_put_failure;
1872 for (i = state->capa_start;
1873 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1874 const struct wiphy_iftype_ext_capab *capab;
1876 capab = &rdev->wiphy.iftype_ext_capab[i];
1878 nested_ext_capab = nla_nest_start(msg, i);
1879 if (!nested_ext_capab ||
1880 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1882 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1883 capab->extended_capabilities_len,
1884 capab->extended_capabilities) ||
1885 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1886 capab->extended_capabilities_len,
1887 capab->extended_capabilities_mask))
1888 goto nla_put_failure;
1890 nla_nest_end(msg, nested_ext_capab);
1894 nla_nest_end(msg, nested);
1895 if (i < rdev->wiphy.num_iftype_ext_capab) {
1896 state->capa_start = i + 1;
1902 state->split_start = 0;
1906 genlmsg_end(msg, hdr);
1910 genlmsg_cancel(msg, hdr);
1914 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1915 struct netlink_callback *cb,
1916 struct nl80211_dump_wiphy_state *state)
1918 struct nlattr **tb = nl80211_fam.attrbuf;
1919 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1920 tb, nl80211_fam.maxattr, nl80211_policy);
1921 /* ignore parse errors for backward compatibility */
1925 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1926 if (tb[NL80211_ATTR_WIPHY])
1927 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1928 if (tb[NL80211_ATTR_WDEV])
1929 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1930 if (tb[NL80211_ATTR_IFINDEX]) {
1931 struct net_device *netdev;
1932 struct cfg80211_registered_device *rdev;
1933 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1935 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1938 if (netdev->ieee80211_ptr) {
1939 rdev = wiphy_to_rdev(
1940 netdev->ieee80211_ptr->wiphy);
1941 state->filter_wiphy = rdev->wiphy_idx;
1948 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1951 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1952 struct cfg80211_registered_device *rdev;
1956 state = kzalloc(sizeof(*state), GFP_KERNEL);
1961 state->filter_wiphy = -1;
1962 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1968 cb->args[0] = (long)state;
1971 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1972 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1974 if (++idx <= state->start)
1976 if (state->filter_wiphy != -1 &&
1977 state->filter_wiphy != rdev->wiphy_idx)
1979 /* attempt to fit multiple wiphy data chunks into the skb */
1981 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1983 NETLINK_CB(cb->skb).portid,
1985 NLM_F_MULTI, state);
1988 * If sending the wiphy data didn't fit (ENOBUFS
1989 * or EMSGSIZE returned), this SKB is still
1990 * empty (so it's not too big because another
1991 * wiphy dataset is already in the skb) and
1992 * we've not tried to adjust the dump allocation
1993 * yet ... then adjust the alloc size to be
1994 * bigger, and return 1 but with the empty skb.
1995 * This results in an empty message being RX'ed
1996 * in userspace, but that is ignored.
1998 * We can then retry with the larger buffer.
2000 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
2001 !skb->len && !state->split &&
2002 cb->min_dump_alloc < 4096) {
2003 cb->min_dump_alloc = 4096;
2004 state->split_start = 0;
2011 } while (state->split_start > 0);
2021 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2023 kfree((void *)cb->args[0]);
2027 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2029 struct sk_buff *msg;
2030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2031 struct nl80211_dump_wiphy_state state = {};
2033 msg = nlmsg_new(4096, GFP_KERNEL);
2037 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2038 info->snd_portid, info->snd_seq, 0,
2044 return genlmsg_reply(msg, info);
2047 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2048 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2049 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2050 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2051 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2052 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2055 static int parse_txq_params(struct nlattr *tb[],
2056 struct ieee80211_txq_params *txq_params)
2060 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
2061 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2062 !tb[NL80211_TXQ_ATTR_AIFS])
2065 ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
2066 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2067 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2068 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2069 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2071 if (ac >= NL80211_NUM_ACS)
2073 txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS);
2077 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2080 * You can only set the channel explicitly for WDS interfaces,
2081 * all others have their channel managed via their respective
2082 * "establish a connection" command (connect, join, ...)
2084 * For AP/GO and mesh mode, the channel can be set with the
2085 * channel userspace API, but is only stored and passed to the
2086 * low-level driver when the AP starts or the mesh is joined.
2087 * This is for backward compatibility, userspace can also give
2088 * the channel in the start-ap or join-mesh commands instead.
2090 * Monitors are special as they are normally slaved to
2091 * whatever else is going on, so they have their own special
2092 * operation to set the monitor channel if possible.
2095 wdev->iftype == NL80211_IFTYPE_AP ||
2096 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
2097 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2098 wdev->iftype == NL80211_IFTYPE_P2P_GO;
2101 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2102 struct genl_info *info,
2103 struct cfg80211_chan_def *chandef)
2107 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2110 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2112 memset(chandef, 0, sizeof(*chandef));
2114 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
2115 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2116 chandef->center_freq1 = control_freq;
2117 chandef->center_freq2 = 0;
2119 /* Primary channel not allowed */
2120 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2123 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2124 enum nl80211_channel_type chantype;
2126 chantype = nla_get_u32(
2127 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2130 case NL80211_CHAN_NO_HT:
2131 case NL80211_CHAN_HT20:
2132 case NL80211_CHAN_HT40PLUS:
2133 case NL80211_CHAN_HT40MINUS:
2134 cfg80211_chandef_create(chandef, chandef->chan,
2140 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2142 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2143 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2144 chandef->center_freq1 =
2146 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2147 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2148 chandef->center_freq2 =
2150 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2153 if (!cfg80211_chandef_valid(chandef))
2156 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2157 IEEE80211_CHAN_DISABLED))
2160 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2161 chandef->width == NL80211_CHAN_WIDTH_10) &&
2162 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2168 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2169 struct net_device *dev,
2170 struct genl_info *info)
2172 struct cfg80211_chan_def chandef;
2174 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2175 struct wireless_dev *wdev = NULL;
2178 wdev = dev->ieee80211_ptr;
2179 if (!nl80211_can_set_dev_channel(wdev))
2182 iftype = wdev->iftype;
2184 result = nl80211_parse_chandef(rdev, info, &chandef);
2189 case NL80211_IFTYPE_AP:
2190 case NL80211_IFTYPE_P2P_GO:
2191 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2196 if (wdev->beacon_interval) {
2197 if (!dev || !rdev->ops->set_ap_chanwidth ||
2198 !(rdev->wiphy.features &
2199 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2204 /* Only allow dynamic channel width changes */
2205 if (chandef.chan != wdev->preset_chandef.chan) {
2209 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2213 wdev->preset_chandef = chandef;
2216 case NL80211_IFTYPE_MESH_POINT:
2217 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2219 case NL80211_IFTYPE_MONITOR:
2220 result = cfg80211_set_monitor_channel(rdev, &chandef);
2229 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2232 struct net_device *netdev = info->user_ptr[1];
2234 return __nl80211_set_channel(rdev, netdev, info);
2237 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2239 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2240 struct net_device *dev = info->user_ptr[1];
2241 struct wireless_dev *wdev = dev->ieee80211_ptr;
2244 if (!info->attrs[NL80211_ATTR_MAC])
2247 if (netif_running(dev))
2250 if (!rdev->ops->set_wds_peer)
2253 if (wdev->iftype != NL80211_IFTYPE_WDS)
2256 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2257 return rdev_set_wds_peer(rdev, dev, bssid);
2260 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2262 struct cfg80211_registered_device *rdev;
2263 struct net_device *netdev = NULL;
2264 struct wireless_dev *wdev;
2265 int result = 0, rem_txq_params = 0;
2266 struct nlattr *nl_txq_params;
2268 u8 retry_short = 0, retry_long = 0;
2269 u32 frag_threshold = 0, rts_threshold = 0;
2270 u8 coverage_class = 0;
2275 * Try to find the wiphy and netdev. Normally this
2276 * function shouldn't need the netdev, but this is
2277 * done for backward compatibility -- previously
2278 * setting the channel was done per wiphy, but now
2279 * it is per netdev. Previous userland like hostapd
2280 * also passed a netdev to set_wiphy, so that it is
2281 * possible to let that go to the right netdev!
2284 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2285 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2287 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2288 if (netdev && netdev->ieee80211_ptr)
2289 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2295 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2298 return PTR_ERR(rdev);
2303 wdev = netdev->ieee80211_ptr;
2306 * end workaround code, by now the rdev is available
2307 * and locked, and wdev may or may not be NULL.
2310 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2311 result = cfg80211_dev_rename(
2312 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2317 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2318 struct ieee80211_txq_params txq_params;
2319 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2321 if (!rdev->ops->set_txq_params)
2327 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2328 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2331 if (!netif_running(netdev))
2334 nla_for_each_nested(nl_txq_params,
2335 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2337 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2338 nla_data(nl_txq_params),
2339 nla_len(nl_txq_params),
2343 result = parse_txq_params(tb, &txq_params);
2347 result = rdev_set_txq_params(rdev, netdev,
2354 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2355 result = __nl80211_set_channel(
2357 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2363 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2364 struct wireless_dev *txp_wdev = wdev;
2365 enum nl80211_tx_power_setting type;
2368 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2371 if (!rdev->ops->set_tx_power)
2374 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2375 type = nla_get_u32(info->attrs[idx]);
2377 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2378 (type != NL80211_TX_POWER_AUTOMATIC))
2381 if (type != NL80211_TX_POWER_AUTOMATIC) {
2382 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2383 mbm = nla_get_u32(info->attrs[idx]);
2386 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2391 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2392 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2395 if ((!rdev->wiphy.available_antennas_tx &&
2396 !rdev->wiphy.available_antennas_rx) ||
2397 !rdev->ops->set_antenna)
2400 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2401 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2403 /* reject antenna configurations which don't match the
2404 * available antenna masks, except for the "all" mask */
2405 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2406 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2409 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2410 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2412 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2419 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2420 retry_short = nla_get_u8(
2421 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2422 if (retry_short == 0)
2425 changed |= WIPHY_PARAM_RETRY_SHORT;
2428 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2429 retry_long = nla_get_u8(
2430 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2431 if (retry_long == 0)
2434 changed |= WIPHY_PARAM_RETRY_LONG;
2437 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2438 frag_threshold = nla_get_u32(
2439 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2440 if (frag_threshold < 256)
2443 if (frag_threshold != (u32) -1) {
2445 * Fragments (apart from the last one) are required to
2446 * have even length. Make the fragmentation code
2447 * simpler by stripping LSB should someone try to use
2448 * odd threshold value.
2450 frag_threshold &= ~0x1;
2452 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2455 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2456 rts_threshold = nla_get_u32(
2457 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2458 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2461 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2462 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2465 coverage_class = nla_get_u8(
2466 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2467 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2470 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2471 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2474 changed |= WIPHY_PARAM_DYN_ACK;
2478 u8 old_retry_short, old_retry_long;
2479 u32 old_frag_threshold, old_rts_threshold;
2480 u8 old_coverage_class;
2482 if (!rdev->ops->set_wiphy_params)
2485 old_retry_short = rdev->wiphy.retry_short;
2486 old_retry_long = rdev->wiphy.retry_long;
2487 old_frag_threshold = rdev->wiphy.frag_threshold;
2488 old_rts_threshold = rdev->wiphy.rts_threshold;
2489 old_coverage_class = rdev->wiphy.coverage_class;
2491 if (changed & WIPHY_PARAM_RETRY_SHORT)
2492 rdev->wiphy.retry_short = retry_short;
2493 if (changed & WIPHY_PARAM_RETRY_LONG)
2494 rdev->wiphy.retry_long = retry_long;
2495 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2496 rdev->wiphy.frag_threshold = frag_threshold;
2497 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2498 rdev->wiphy.rts_threshold = rts_threshold;
2499 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2500 rdev->wiphy.coverage_class = coverage_class;
2502 result = rdev_set_wiphy_params(rdev, changed);
2504 rdev->wiphy.retry_short = old_retry_short;
2505 rdev->wiphy.retry_long = old_retry_long;
2506 rdev->wiphy.frag_threshold = old_frag_threshold;
2507 rdev->wiphy.rts_threshold = old_rts_threshold;
2508 rdev->wiphy.coverage_class = old_coverage_class;
2515 static inline u64 wdev_id(struct wireless_dev *wdev)
2517 return (u64)wdev->identifier |
2518 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2521 static int nl80211_send_chandef(struct sk_buff *msg,
2522 const struct cfg80211_chan_def *chandef)
2524 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2527 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2528 chandef->chan->center_freq))
2530 switch (chandef->width) {
2531 case NL80211_CHAN_WIDTH_20_NOHT:
2532 case NL80211_CHAN_WIDTH_20:
2533 case NL80211_CHAN_WIDTH_40:
2534 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2535 cfg80211_get_chandef_type(chandef)))
2541 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2543 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2545 if (chandef->center_freq2 &&
2546 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2551 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2552 struct cfg80211_registered_device *rdev,
2553 struct wireless_dev *wdev, bool removal)
2555 struct net_device *dev = wdev->netdev;
2556 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2560 cmd = NL80211_CMD_DEL_INTERFACE;
2562 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2567 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2568 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2569 goto nla_put_failure;
2571 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2572 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2573 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2574 NL80211_ATTR_PAD) ||
2575 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2576 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2577 rdev->devlist_generation ^
2578 (cfg80211_rdev_list_generation << 2)))
2579 goto nla_put_failure;
2581 if (rdev->ops->get_channel) {
2583 struct cfg80211_chan_def chandef = {};
2585 ret = rdev_get_channel(rdev, wdev, &chandef);
2587 if (nl80211_send_chandef(msg, &chandef))
2588 goto nla_put_failure;
2592 if (rdev->ops->get_tx_power) {
2595 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2597 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2599 goto nla_put_failure;
2602 if (wdev->ssid_len) {
2603 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2604 goto nla_put_failure;
2607 genlmsg_end(msg, hdr);
2611 genlmsg_cancel(msg, hdr);
2615 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2619 int wp_start = cb->args[0];
2620 int if_start = cb->args[1];
2621 int filter_wiphy = -1;
2622 struct cfg80211_registered_device *rdev;
2623 struct wireless_dev *wdev;
2628 struct nl80211_dump_wiphy_state state = {
2632 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2636 filter_wiphy = state.filter_wiphy;
2639 * if filtering, set cb->args[2] to +1 since 0 is the default
2640 * value needed to determine that parsing is necessary.
2642 if (filter_wiphy >= 0)
2643 cb->args[2] = filter_wiphy + 1;
2646 } else if (cb->args[2] > 0) {
2647 filter_wiphy = cb->args[2] - 1;
2650 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2651 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2653 if (wp_idx < wp_start) {
2658 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2663 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
2664 if (if_idx < if_start) {
2668 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2669 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2670 rdev, wdev, false) < 0) {
2679 cb->args[0] = wp_idx;
2680 cb->args[1] = if_idx;
2689 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2691 struct sk_buff *msg;
2692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2693 struct wireless_dev *wdev = info->user_ptr[1];
2695 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2699 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2700 rdev, wdev, false) < 0) {
2705 return genlmsg_reply(msg, info);
2708 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2709 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2710 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2711 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2712 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2713 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2714 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2717 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2719 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2727 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2728 nla, mntr_flags_policy))
2731 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2733 *mntrflags |= (1<<flag);
2738 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2739 struct net_device *netdev, u8 use_4addr,
2740 enum nl80211_iftype iftype)
2743 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2749 case NL80211_IFTYPE_AP_VLAN:
2750 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2753 case NL80211_IFTYPE_STATION:
2754 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2764 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2767 struct vif_params params;
2769 enum nl80211_iftype otype, ntype;
2770 struct net_device *dev = info->user_ptr[1];
2771 u32 _flags, *flags = NULL;
2772 bool change = false;
2774 memset(¶ms, 0, sizeof(params));
2776 otype = ntype = dev->ieee80211_ptr->iftype;
2778 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2779 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2782 if (ntype > NL80211_IFTYPE_MAX)
2786 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2787 struct wireless_dev *wdev = dev->ieee80211_ptr;
2789 if (ntype != NL80211_IFTYPE_MESH_POINT)
2791 if (netif_running(dev))
2795 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2796 IEEE80211_MAX_MESH_ID_LEN);
2797 wdev->mesh_id_up_len =
2798 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2799 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2800 wdev->mesh_id_up_len);
2804 if (info->attrs[NL80211_ATTR_4ADDR]) {
2805 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2807 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2811 params.use_4addr = -1;
2814 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2815 if (ntype != NL80211_IFTYPE_MONITOR)
2817 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2826 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2827 const u8 *mumimo_groups;
2828 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2830 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2834 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2836 /* bits 0 and 63 are reserved and must be zero */
2837 if ((mumimo_groups[0] & BIT(7)) ||
2838 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2841 memcpy(params.vht_mumimo_groups, mumimo_groups,
2842 VHT_MUMIMO_GROUPS_DATA_LEN);
2846 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2847 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2849 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2852 nla_memcpy(params.macaddr,
2853 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2858 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2859 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2863 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2867 if (!err && params.use_4addr != -1)
2868 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2873 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2876 struct vif_params params;
2877 struct wireless_dev *wdev;
2878 struct sk_buff *msg;
2880 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2883 /* to avoid failing a new interface creation due to pending removal */
2884 cfg80211_destroy_ifaces(rdev);
2886 memset(¶ms, 0, sizeof(params));
2888 if (!info->attrs[NL80211_ATTR_IFNAME])
2891 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2892 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2893 if (type > NL80211_IFTYPE_MAX)
2897 if (!rdev->ops->add_virtual_intf ||
2898 !(rdev->wiphy.interface_modes & (1 << type)))
2901 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
2902 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2903 info->attrs[NL80211_ATTR_MAC]) {
2904 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2906 if (!is_valid_ether_addr(params.macaddr))
2907 return -EADDRNOTAVAIL;
2910 if (info->attrs[NL80211_ATTR_4ADDR]) {
2911 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2912 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2917 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2918 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2921 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2922 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2925 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2929 wdev = rdev_add_virtual_intf(rdev,
2930 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2931 NET_NAME_USER, type, err ? NULL : &flags,
2933 if (WARN_ON(!wdev)) {
2936 } else if (IS_ERR(wdev)) {
2938 return PTR_ERR(wdev);
2941 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2942 wdev->owner_nlportid = info->snd_portid;
2945 case NL80211_IFTYPE_MESH_POINT:
2946 if (!info->attrs[NL80211_ATTR_MESH_ID])
2949 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2950 IEEE80211_MAX_MESH_ID_LEN);
2951 wdev->mesh_id_up_len =
2952 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2953 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2954 wdev->mesh_id_up_len);
2957 case NL80211_IFTYPE_NAN:
2958 case NL80211_IFTYPE_P2P_DEVICE:
2960 * P2P Device and NAN do not have a netdev, so don't go
2961 * through the netdev notifier and must be added here
2963 mutex_init(&wdev->mtx);
2964 INIT_LIST_HEAD(&wdev->event_list);
2965 spin_lock_init(&wdev->event_lock);
2966 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2967 spin_lock_init(&wdev->mgmt_registrations_lock);
2969 wdev->identifier = ++rdev->wdev_id;
2970 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
2971 rdev->devlist_generation++;
2977 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2978 rdev, wdev, false) < 0) {
2984 * For wdevs which have no associated netdev object (e.g. of type
2985 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2986 * For all other types, the event will be generated from the
2990 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
2992 return genlmsg_reply(msg, info);
2995 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2998 struct wireless_dev *wdev = info->user_ptr[1];
3000 if (!rdev->ops->del_virtual_intf)
3004 * If we remove a wireless device without a netdev then clear
3005 * user_ptr[1] so that nl80211_post_doit won't dereference it
3006 * to check if it needs to do dev_put(). Otherwise it crashes
3007 * since the wdev has been freed, unlike with a netdev where
3008 * we need the dev_put() for the netdev to really be freed.
3011 info->user_ptr[1] = NULL;
3013 return rdev_del_virtual_intf(rdev, wdev);
3016 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3019 struct net_device *dev = info->user_ptr[1];
3022 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3025 if (!rdev->ops->set_noack_map)
3028 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3030 return rdev_set_noack_map(rdev, dev, noack_map);
3033 struct get_key_cookie {
3034 struct sk_buff *msg;
3039 static void get_key_callback(void *c, struct key_params *params)
3042 struct get_key_cookie *cookie = c;
3045 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3046 params->key_len, params->key)) ||
3048 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3049 params->seq_len, params->seq)) ||
3051 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3053 goto nla_put_failure;
3055 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3057 goto nla_put_failure;
3060 nla_put(cookie->msg, NL80211_KEY_DATA,
3061 params->key_len, params->key)) ||
3063 nla_put(cookie->msg, NL80211_KEY_SEQ,
3064 params->seq_len, params->seq)) ||
3066 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3068 goto nla_put_failure;
3070 if (nla_put_u8(cookie->msg, NL80211_KEY_IDX, cookie->idx))
3071 goto nla_put_failure;
3073 nla_nest_end(cookie->msg, key);
3080 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3082 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3084 struct net_device *dev = info->user_ptr[1];
3086 const u8 *mac_addr = NULL;
3088 struct get_key_cookie cookie = {
3092 struct sk_buff *msg;
3094 if (info->attrs[NL80211_ATTR_KEY_IDX])
3095 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3100 if (info->attrs[NL80211_ATTR_MAC])
3101 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3103 pairwise = !!mac_addr;
3104 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3105 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
3107 if (kt >= NUM_NL80211_KEYTYPES)
3109 if (kt != NL80211_KEYTYPE_GROUP &&
3110 kt != NL80211_KEYTYPE_PAIRWISE)
3112 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3115 if (!rdev->ops->get_key)
3118 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3125 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3126 NL80211_CMD_NEW_KEY);
3128 goto nla_put_failure;
3131 cookie.idx = key_idx;
3133 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3134 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3135 goto nla_put_failure;
3137 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3138 goto nla_put_failure;
3140 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3147 goto nla_put_failure;
3149 genlmsg_end(msg, hdr);
3150 return genlmsg_reply(msg, info);
3159 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3162 struct key_parse key;
3164 struct net_device *dev = info->user_ptr[1];
3166 err = nl80211_parse_key(info, &key);
3173 /* only support setting default key */
3174 if (!key.def && !key.defmgmt)
3177 wdev_lock(dev->ieee80211_ptr);
3180 if (!rdev->ops->set_default_key) {
3185 err = nl80211_key_allowed(dev->ieee80211_ptr);
3189 err = rdev_set_default_key(rdev, dev, key.idx,
3190 key.def_uni, key.def_multi);
3195 #ifdef CONFIG_CFG80211_WEXT
3196 dev->ieee80211_ptr->wext.default_key = key.idx;
3199 if (key.def_uni || !key.def_multi) {
3204 if (!rdev->ops->set_default_mgmt_key) {
3209 err = nl80211_key_allowed(dev->ieee80211_ptr);
3213 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3217 #ifdef CONFIG_CFG80211_WEXT
3218 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3223 wdev_unlock(dev->ieee80211_ptr);
3228 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3232 struct net_device *dev = info->user_ptr[1];
3233 struct key_parse key;
3234 const u8 *mac_addr = NULL;
3236 err = nl80211_parse_key(info, &key);
3243 if (info->attrs[NL80211_ATTR_MAC])
3244 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3246 if (key.type == -1) {
3248 key.type = NL80211_KEYTYPE_PAIRWISE;
3250 key.type = NL80211_KEYTYPE_GROUP;
3254 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3255 key.type != NL80211_KEYTYPE_GROUP)
3258 if (!rdev->ops->add_key)
3261 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3262 key.type == NL80211_KEYTYPE_PAIRWISE,
3266 wdev_lock(dev->ieee80211_ptr);
3267 err = nl80211_key_allowed(dev->ieee80211_ptr);
3269 err = rdev_add_key(rdev, dev, key.idx,
3270 key.type == NL80211_KEYTYPE_PAIRWISE,
3272 wdev_unlock(dev->ieee80211_ptr);
3277 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3281 struct net_device *dev = info->user_ptr[1];
3282 u8 *mac_addr = NULL;
3283 struct key_parse key;
3285 err = nl80211_parse_key(info, &key);
3292 if (info->attrs[NL80211_ATTR_MAC])
3293 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3295 if (key.type == -1) {
3297 key.type = NL80211_KEYTYPE_PAIRWISE;
3299 key.type = NL80211_KEYTYPE_GROUP;
3303 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3304 key.type != NL80211_KEYTYPE_GROUP)
3307 if (!rdev->ops->del_key)
3310 wdev_lock(dev->ieee80211_ptr);
3311 err = nl80211_key_allowed(dev->ieee80211_ptr);
3313 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3314 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3318 err = rdev_del_key(rdev, dev, key.idx,
3319 key.type == NL80211_KEYTYPE_PAIRWISE,
3322 #ifdef CONFIG_CFG80211_WEXT
3324 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3325 dev->ieee80211_ptr->wext.default_key = -1;
3326 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3327 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3330 wdev_unlock(dev->ieee80211_ptr);
3335 /* This function returns an error or the number of nested attributes */
3336 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3338 struct nlattr *attr;
3339 int n_entries = 0, tmp;
3341 nla_for_each_nested(attr, nl_attr, tmp) {
3342 if (nla_len(attr) != ETH_ALEN)
3352 * This function parses ACL information and allocates memory for ACL data.
3353 * On successful return, the calling function is responsible to free the
3354 * ACL buffer returned by this function.
3356 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3357 struct genl_info *info)
3359 enum nl80211_acl_policy acl_policy;
3360 struct nlattr *attr;
3361 struct cfg80211_acl_data *acl;
3362 int i = 0, n_entries, tmp;
3364 if (!wiphy->max_acl_mac_addrs)
3365 return ERR_PTR(-EOPNOTSUPP);
3367 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3368 return ERR_PTR(-EINVAL);
3370 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3371 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3372 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3373 return ERR_PTR(-EINVAL);
3375 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3376 return ERR_PTR(-EINVAL);
3378 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3380 return ERR_PTR(n_entries);
3382 if (n_entries > wiphy->max_acl_mac_addrs)
3383 return ERR_PTR(-ENOTSUPP);
3385 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3388 return ERR_PTR(-ENOMEM);
3390 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3391 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3395 acl->n_acl_entries = n_entries;
3396 acl->acl_policy = acl_policy;
3401 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3404 struct net_device *dev = info->user_ptr[1];
3405 struct cfg80211_acl_data *acl;
3408 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3409 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3412 if (!dev->ieee80211_ptr->beacon_interval)
3415 acl = parse_acl_data(&rdev->wiphy, info);
3417 return PTR_ERR(acl);
3419 err = rdev_set_mac_acl(rdev, dev, acl);
3426 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3427 u8 *rates, u8 rates_len)
3432 for (i = 0; i < rates_len; i++) {
3433 int rate = (rates[i] & 0x7f) * 5;
3436 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3437 struct ieee80211_rate *srate =
3438 &sband->bitrates[ridx];
3439 if (rate == srate->bitrate) {
3444 if (ridx == sband->n_bitrates)
3445 return 0; /* rate not found */
3451 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3452 u8 *rates, u8 rates_len,
3453 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3457 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3459 for (i = 0; i < rates_len; i++) {
3462 ridx = rates[i] / 8;
3463 rbit = BIT(rates[i] % 8);
3465 /* check validity */
3466 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3469 /* check availability */
3470 ridx = array_index_nospec(ridx, IEEE80211_HT_MCS_MASK_LEN);
3471 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3480 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3484 switch (vht_mcs_map) {
3485 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3487 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3490 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3493 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3503 static void vht_build_mcs_mask(u16 vht_mcs_map,
3504 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3508 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3509 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3514 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3515 struct nl80211_txrate_vht *txrate,
3516 u16 mcs[NL80211_VHT_NSS_MAX])
3518 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3519 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3522 if (!sband->vht_cap.vht_supported)
3525 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3527 /* Build vht_mcs_mask from VHT capabilities */
3528 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3530 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3531 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3532 mcs[i] = txrate->mcs[i];
3540 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3541 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3542 .len = NL80211_MAX_SUPP_RATES },
3543 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3544 .len = NL80211_MAX_SUPP_HT_RATES },
3545 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3546 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3549 static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3550 struct cfg80211_bitrate_mask *mask)
3552 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3555 struct nlattr *tx_rates;
3556 struct ieee80211_supported_band *sband;
3559 memset(mask, 0, sizeof(*mask));
3560 /* Default to all rates enabled */
3561 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3562 sband = rdev->wiphy.bands[i];
3567 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3568 memcpy(mask->control[i].ht_mcs,
3569 sband->ht_cap.mcs.rx_mask,
3570 sizeof(mask->control[i].ht_mcs));
3572 if (!sband->vht_cap.vht_supported)
3575 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3576 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3579 /* if no rates are given set it back to the defaults */
3580 if (!info->attrs[NL80211_ATTR_TX_RATES])
3583 /* The nested attribute uses enum nl80211_band as the index. This maps
3584 * directly to the enum nl80211_band values used in cfg80211.
3586 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3587 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3588 enum nl80211_band band = nla_type(tx_rates);
3591 if (band < 0 || band >= NUM_NL80211_BANDS)
3593 sband = rdev->wiphy.bands[band];
3596 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
3597 nla_len(tx_rates), nl80211_txattr_policy);
3600 if (tb[NL80211_TXRATE_LEGACY]) {
3601 mask->control[band].legacy = rateset_to_mask(
3603 nla_data(tb[NL80211_TXRATE_LEGACY]),
3604 nla_len(tb[NL80211_TXRATE_LEGACY]));
3605 if ((mask->control[band].legacy == 0) &&
3606 nla_len(tb[NL80211_TXRATE_LEGACY]))
3609 if (tb[NL80211_TXRATE_HT]) {
3610 if (!ht_rateset_to_mask(
3612 nla_data(tb[NL80211_TXRATE_HT]),
3613 nla_len(tb[NL80211_TXRATE_HT]),
3614 mask->control[band].ht_mcs))
3617 if (tb[NL80211_TXRATE_VHT]) {
3618 if (!vht_set_mcs_mask(
3620 nla_data(tb[NL80211_TXRATE_VHT]),
3621 mask->control[band].vht_mcs))
3624 if (tb[NL80211_TXRATE_GI]) {
3625 mask->control[band].gi =
3626 nla_get_u8(tb[NL80211_TXRATE_GI]);
3627 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3631 if (mask->control[band].legacy == 0) {
3632 /* don't allow empty legacy rates if HT or VHT
3633 * are not even supported.
3635 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3636 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3639 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3640 if (mask->control[band].ht_mcs[i])
3643 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3644 if (mask->control[band].vht_mcs[i])
3647 /* legacy and mcs rates may not be both empty */
3656 static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3657 enum nl80211_band band,
3658 struct cfg80211_bitrate_mask *beacon_rate)
3660 u32 count_ht, count_vht, i;
3661 u32 rate = beacon_rate->control[band].legacy;
3663 /* Allow only one rate */
3664 if (hweight32(rate) > 1)
3668 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3669 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
3671 } else if (beacon_rate->control[band].ht_mcs[i]) {
3676 if (count_ht && rate)
3681 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3682 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
3684 } else if (beacon_rate->control[band].vht_mcs[i]) {
3689 if (count_vht && rate)
3693 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3697 !wiphy_ext_feature_isset(&rdev->wiphy,
3698 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3701 !wiphy_ext_feature_isset(&rdev->wiphy,
3702 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3705 !wiphy_ext_feature_isset(&rdev->wiphy,
3706 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3712 static int nl80211_parse_beacon(struct nlattr *attrs[],
3713 struct cfg80211_beacon_data *bcn)
3715 bool haveinfo = false;
3717 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3718 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3719 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3720 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3723 memset(bcn, 0, sizeof(*bcn));
3725 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3726 int ret = validate_beacon_head(attrs[NL80211_ATTR_BEACON_HEAD]);
3731 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3732 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3738 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3739 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3740 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3747 if (attrs[NL80211_ATTR_IE]) {
3748 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3749 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3752 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3753 bcn->proberesp_ies =
3754 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3755 bcn->proberesp_ies_len =
3756 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3759 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3760 bcn->assocresp_ies =
3761 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3762 bcn->assocresp_ies_len =
3763 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3766 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3767 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3768 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3774 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3775 struct cfg80211_ap_settings *params)
3777 struct wireless_dev *wdev;
3780 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
3781 if (wdev->iftype != NL80211_IFTYPE_AP &&
3782 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3785 if (!wdev->preset_chandef.chan)
3788 params->chandef = wdev->preset_chandef;
3796 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3797 enum nl80211_auth_type auth_type,
3798 enum nl80211_commands cmd)
3800 if (auth_type > NL80211_AUTHTYPE_MAX)
3804 case NL80211_CMD_AUTHENTICATE:
3805 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3806 auth_type == NL80211_AUTHTYPE_SAE)
3809 case NL80211_CMD_CONNECT:
3810 case NL80211_CMD_START_AP:
3811 /* SAE not supported yet */
3812 if (auth_type == NL80211_AUTHTYPE_SAE)
3820 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3823 struct net_device *dev = info->user_ptr[1];
3824 struct wireless_dev *wdev = dev->ieee80211_ptr;
3825 struct cfg80211_ap_settings params;
3828 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3829 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3832 if (!rdev->ops->start_ap)
3835 if (wdev->beacon_interval)
3838 memset(¶ms, 0, sizeof(params));
3840 /* these are required for START_AP */
3841 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3842 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3843 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3846 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3850 params.beacon_interval =
3851 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3852 params.dtim_period =
3853 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3855 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3860 * In theory, some of these attributes should be required here
3861 * but since they were not used when the command was originally
3862 * added, keep them optional for old user space programs to let
3863 * them continue to work with drivers that do not need the
3864 * additional information -- drivers must check!
3866 if (info->attrs[NL80211_ATTR_SSID]) {
3867 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3869 nla_len(info->attrs[NL80211_ATTR_SSID]);
3870 if (params.ssid_len == 0 ||
3871 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3875 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3876 params.hidden_ssid = nla_get_u32(
3877 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3878 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3879 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3880 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3884 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3886 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3887 params.auth_type = nla_get_u32(
3888 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3889 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3890 NL80211_CMD_START_AP))
3893 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3895 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3896 NL80211_MAX_NR_CIPHER_SUITES);
3900 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3901 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3903 params.inactivity_timeout = nla_get_u16(
3904 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3907 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3908 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3910 params.p2p_ctwindow =
3911 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3912 if (params.p2p_ctwindow > 127)
3914 if (params.p2p_ctwindow != 0 &&
3915 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3919 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3922 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3924 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3927 params.p2p_opp_ps = tmp;
3928 if (params.p2p_opp_ps != 0 &&
3929 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3933 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3934 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3937 } else if (wdev->preset_chandef.chan) {
3938 params.chandef = wdev->preset_chandef;
3939 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3942 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3946 if (info->attrs[NL80211_ATTR_TX_RATES]) {
3947 err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate);
3951 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
3952 ¶ms.beacon_rate);
3957 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3959 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3960 switch (params.smps_mode) {
3961 case NL80211_SMPS_OFF:
3963 case NL80211_SMPS_STATIC:
3964 if (!(rdev->wiphy.features &
3965 NL80211_FEATURE_STATIC_SMPS))
3968 case NL80211_SMPS_DYNAMIC:
3969 if (!(rdev->wiphy.features &
3970 NL80211_FEATURE_DYNAMIC_SMPS))
3977 params.smps_mode = NL80211_SMPS_OFF;
3980 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3981 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3984 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3985 params.acl = parse_acl_data(&rdev->wiphy, info);
3986 if (IS_ERR(params.acl))
3987 return PTR_ERR(params.acl);
3991 err = rdev_start_ap(rdev, dev, ¶ms);
3993 wdev->preset_chandef = params.chandef;
3994 wdev->beacon_interval = params.beacon_interval;
3995 wdev->chandef = params.chandef;
3996 wdev->ssid_len = params.ssid_len;
3997 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
4006 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4009 struct net_device *dev = info->user_ptr[1];
4010 struct wireless_dev *wdev = dev->ieee80211_ptr;
4011 struct cfg80211_beacon_data params;
4014 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4015 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4018 if (!rdev->ops->change_beacon)
4021 if (!wdev->beacon_interval)
4024 err = nl80211_parse_beacon(info->attrs, ¶ms);
4029 err = rdev_change_beacon(rdev, dev, ¶ms);
4035 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
4037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4038 struct net_device *dev = info->user_ptr[1];
4040 return cfg80211_stop_ap(rdev, dev, false);
4043 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4044 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4045 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4046 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
4047 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
4048 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
4049 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
4052 static int parse_station_flags(struct genl_info *info,
4053 enum nl80211_iftype iftype,
4054 struct station_parameters *params)
4056 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
4061 * Try parsing the new attribute first so userspace
4062 * can specify both for older kernels.
4064 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4066 struct nl80211_sta_flag_update *sta_flags;
4068 sta_flags = nla_data(nla);
4069 params->sta_flags_mask = sta_flags->mask;
4070 params->sta_flags_set = sta_flags->set;
4071 params->sta_flags_set &= params->sta_flags_mask;
4072 if ((params->sta_flags_mask |
4073 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4078 /* if present, parse the old attribute */
4080 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
4084 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
4085 nla, sta_flags_policy))
4089 * Only allow certain flags for interface types so that
4090 * other attributes are silently ignored. Remember that
4091 * this is backward compatibility code with old userspace
4092 * and shouldn't be hit in other cases anyway.
4095 case NL80211_IFTYPE_AP:
4096 case NL80211_IFTYPE_AP_VLAN:
4097 case NL80211_IFTYPE_P2P_GO:
4098 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4099 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4100 BIT(NL80211_STA_FLAG_WME) |
4101 BIT(NL80211_STA_FLAG_MFP);
4103 case NL80211_IFTYPE_P2P_CLIENT:
4104 case NL80211_IFTYPE_STATION:
4105 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4106 BIT(NL80211_STA_FLAG_TDLS_PEER);
4108 case NL80211_IFTYPE_MESH_POINT:
4109 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4110 BIT(NL80211_STA_FLAG_MFP) |
4111 BIT(NL80211_STA_FLAG_AUTHORIZED);
4117 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4119 params->sta_flags_set |= (1<<flag);
4121 /* no longer support new API additions in old API */
4122 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4130 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4133 struct nlattr *rate;
4136 enum nl80211_rate_info rate_flg;
4138 rate = nla_nest_start(msg, attr);
4142 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4143 bitrate = cfg80211_calculate_bitrate(info);
4144 /* report 16-bit bitrate only if we can */
4145 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
4147 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4149 if (bitrate_compat > 0 &&
4150 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4154 case RATE_INFO_BW_5:
4155 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4157 case RATE_INFO_BW_10:
4158 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4163 case RATE_INFO_BW_20:
4166 case RATE_INFO_BW_40:
4167 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4169 case RATE_INFO_BW_80:
4170 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4172 case RATE_INFO_BW_160:
4173 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4177 if (rate_flg && nla_put_flag(msg, rate_flg))
4180 if (info->flags & RATE_INFO_FLAGS_MCS) {
4181 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4183 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4184 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4186 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4187 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4189 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4191 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4192 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4196 nla_nest_end(msg, rate);
4200 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4209 attr = nla_nest_start(msg, id);
4213 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4214 if (!(mask & BIT(i)))
4217 if (nla_put_u8(msg, i, signal[i]))
4221 nla_nest_end(msg, attr);
4226 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4228 struct cfg80211_registered_device *rdev,
4229 struct net_device *dev,
4230 const u8 *mac_addr, struct station_info *sinfo)
4233 struct nlattr *sinfoattr, *bss_param;
4235 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
4239 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4240 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4241 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4242 goto nla_put_failure;
4244 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4246 goto nla_put_failure;
4248 #define PUT_SINFO(attr, memb, type) do { \
4249 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
4250 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4251 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4253 goto nla_put_failure; \
4255 #define PUT_SINFO_U64(attr, memb) do { \
4256 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4257 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4258 sinfo->memb, NL80211_STA_INFO_PAD)) \
4259 goto nla_put_failure; \
4262 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4263 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4265 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4266 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
4267 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
4268 (u32)sinfo->rx_bytes))
4269 goto nla_put_failure;
4271 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4272 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
4273 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
4274 (u32)sinfo->tx_bytes))
4275 goto nla_put_failure;
4277 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4278 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
4279 PUT_SINFO(LLID, llid, u16);
4280 PUT_SINFO(PLID, plid, u16);
4281 PUT_SINFO(PLINK_STATE, plink_state, u8);
4282 PUT_SINFO_U64(RX_DURATION, rx_duration);
4284 switch (rdev->wiphy.signal_type) {
4285 case CFG80211_SIGNAL_TYPE_MBM:
4286 PUT_SINFO(SIGNAL, signal, u8);
4287 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
4292 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
4293 if (!nl80211_put_signal(msg, sinfo->chains,
4294 sinfo->chain_signal,
4295 NL80211_STA_INFO_CHAIN_SIGNAL))
4296 goto nla_put_failure;
4298 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
4299 if (!nl80211_put_signal(msg, sinfo->chains,
4300 sinfo->chain_signal_avg,
4301 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4302 goto nla_put_failure;
4304 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
4305 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4306 NL80211_STA_INFO_TX_BITRATE))
4307 goto nla_put_failure;
4309 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
4310 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4311 NL80211_STA_INFO_RX_BITRATE))
4312 goto nla_put_failure;
4315 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4316 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4317 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4318 PUT_SINFO(TX_FAILED, tx_failed, u32);
4319 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4320 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4321 PUT_SINFO(LOCAL_PM, local_pm, u32);
4322 PUT_SINFO(PEER_PM, peer_pm, u32);
4323 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4325 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
4326 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4328 goto nla_put_failure;
4330 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4331 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4332 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4333 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4334 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4335 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4336 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4337 sinfo->bss_param.dtim_period) ||
4338 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4339 sinfo->bss_param.beacon_interval))
4340 goto nla_put_failure;
4342 nla_nest_end(msg, bss_param);
4344 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
4345 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4346 sizeof(struct nl80211_sta_flag_update),
4348 goto nla_put_failure;
4350 PUT_SINFO_U64(T_OFFSET, t_offset);
4351 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4352 PUT_SINFO_U64(BEACON_RX, rx_beacon);
4353 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
4356 #undef PUT_SINFO_U64
4358 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4359 struct nlattr *tidsattr;
4362 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4364 goto nla_put_failure;
4366 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4367 struct cfg80211_tid_stats *tidstats;
4368 struct nlattr *tidattr;
4370 tidstats = &sinfo->pertid[tid];
4372 if (!tidstats->filled)
4375 tidattr = nla_nest_start(msg, tid + 1);
4377 goto nla_put_failure;
4379 #define PUT_TIDVAL_U64(attr, memb) do { \
4380 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
4381 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4382 tidstats->memb, NL80211_TID_STATS_PAD)) \
4383 goto nla_put_failure; \
4386 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4387 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4388 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4389 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
4391 #undef PUT_TIDVAL_U64
4392 nla_nest_end(msg, tidattr);
4395 nla_nest_end(msg, tidsattr);
4398 nla_nest_end(msg, sinfoattr);
4400 if (sinfo->assoc_req_ies_len &&
4401 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4402 sinfo->assoc_req_ies))
4403 goto nla_put_failure;
4405 genlmsg_end(msg, hdr);
4409 genlmsg_cancel(msg, hdr);
4413 static int nl80211_dump_station(struct sk_buff *skb,
4414 struct netlink_callback *cb)
4416 struct station_info sinfo;
4417 struct cfg80211_registered_device *rdev;
4418 struct wireless_dev *wdev;
4419 u8 mac_addr[ETH_ALEN];
4420 int sta_idx = cb->args[2];
4424 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4428 if (!wdev->netdev) {
4433 if (!rdev->ops->dump_station) {
4439 memset(&sinfo, 0, sizeof(sinfo));
4440 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
4447 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
4448 NETLINK_CB(cb->skb).portid,
4449 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4450 rdev, wdev->netdev, mac_addr,
4458 cb->args[2] = sta_idx;
4466 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4469 struct net_device *dev = info->user_ptr[1];
4470 struct station_info sinfo;
4471 struct sk_buff *msg;
4472 u8 *mac_addr = NULL;
4475 memset(&sinfo, 0, sizeof(sinfo));
4477 if (!info->attrs[NL80211_ATTR_MAC])
4480 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4482 if (!rdev->ops->get_station)
4485 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
4489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4493 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4494 info->snd_portid, info->snd_seq, 0,
4495 rdev, dev, mac_addr, &sinfo) < 0) {
4500 return genlmsg_reply(msg, info);
4503 int cfg80211_check_station_change(struct wiphy *wiphy,
4504 struct station_parameters *params,
4505 enum cfg80211_station_type statype)
4507 if (params->listen_interval != -1 &&
4508 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4511 if (params->support_p2p_ps != -1 &&
4512 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4516 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4517 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4520 /* When you run into this, adjust the code below for the new flag */
4521 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4524 case CFG80211_STA_MESH_PEER_KERNEL:
4525 case CFG80211_STA_MESH_PEER_USER:
4527 * No ignoring the TDLS flag here -- the userspace mesh
4528 * code doesn't have the bug of including TDLS in the
4531 if (params->sta_flags_mask &
4532 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4533 BIT(NL80211_STA_FLAG_MFP) |
4534 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4537 case CFG80211_STA_TDLS_PEER_SETUP:
4538 case CFG80211_STA_TDLS_PEER_ACTIVE:
4539 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4541 /* ignore since it can't change */
4542 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4545 /* disallow mesh-specific things */
4546 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4548 if (params->local_pm)
4550 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4554 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4555 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4556 /* TDLS can't be set, ... */
4557 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4560 * ... but don't bother the driver with it. This works around
4561 * a hostapd/wpa_supplicant issue -- it always includes the
4562 * TLDS_PEER flag in the mask even for AP mode.
4564 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4567 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4568 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4569 /* reject other things that can't change */
4570 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4572 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4574 if (params->supported_rates)
4576 if (params->ext_capab || params->ht_capa || params->vht_capa)
4580 if (statype != CFG80211_STA_AP_CLIENT &&
4581 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4587 case CFG80211_STA_AP_MLME_CLIENT:
4588 /* Use this only for authorizing/unauthorizing a station */
4589 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4592 case CFG80211_STA_AP_CLIENT:
4593 case CFG80211_STA_AP_CLIENT_UNASSOC:
4594 /* accept only the listed bits */
4595 if (params->sta_flags_mask &
4596 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4597 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4598 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4599 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4600 BIT(NL80211_STA_FLAG_WME) |
4601 BIT(NL80211_STA_FLAG_MFP)))
4604 /* but authenticated/associated only if driver handles it */
4605 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4606 params->sta_flags_mask &
4607 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4608 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4611 case CFG80211_STA_IBSS:
4612 case CFG80211_STA_AP_STA:
4613 /* reject any changes other than AUTHORIZED */
4614 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4617 case CFG80211_STA_TDLS_PEER_SETUP:
4618 /* reject any changes other than AUTHORIZED or WME */
4619 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4620 BIT(NL80211_STA_FLAG_WME)))
4622 /* force (at least) rates when authorizing */
4623 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4624 !params->supported_rates)
4627 case CFG80211_STA_TDLS_PEER_ACTIVE:
4628 /* reject any changes */
4630 case CFG80211_STA_MESH_PEER_KERNEL:
4631 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4634 case CFG80211_STA_MESH_PEER_USER:
4635 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4636 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4643 EXPORT_SYMBOL(cfg80211_check_station_change);
4646 * Get vlan interface making sure it is running and on the right wiphy.
4648 static struct net_device *get_vlan(struct genl_info *info,
4649 struct cfg80211_registered_device *rdev)
4651 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4652 struct net_device *v;
4658 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4660 return ERR_PTR(-ENODEV);
4662 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4667 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4668 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4669 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4674 if (!netif_running(v)) {
4682 return ERR_PTR(ret);
4685 static const struct nla_policy
4686 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4687 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4688 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4691 static int nl80211_parse_sta_wme(struct genl_info *info,
4692 struct station_parameters *params)
4694 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4698 /* parse WME attributes if present */
4699 if (!info->attrs[NL80211_ATTR_STA_WME])
4702 nla = info->attrs[NL80211_ATTR_STA_WME];
4703 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4704 nl80211_sta_wme_policy);
4708 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4709 params->uapsd_queues = nla_get_u8(
4710 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4711 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4714 if (tb[NL80211_STA_WME_MAX_SP])
4715 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4717 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4720 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4725 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4726 struct station_parameters *params)
4728 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4729 params->supported_channels =
4730 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4731 params->supported_channels_len =
4732 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4734 * Need to include at least one (first channel, number of
4735 * channels) tuple for each subband, and must have proper
4736 * tuples for the rest of the data as well.
4738 if (params->supported_channels_len < 2)
4740 if (params->supported_channels_len % 2)
4744 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4745 params->supported_oper_classes =
4746 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4747 params->supported_oper_classes_len =
4748 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4750 * The value of the Length field of the Supported Operating
4751 * Classes element is between 2 and 253.
4753 if (params->supported_oper_classes_len < 2 ||
4754 params->supported_oper_classes_len > 253)
4760 static int nl80211_set_station_tdls(struct genl_info *info,
4761 struct station_parameters *params)
4764 /* Dummy STA entry gets updated once the peer capabilities are known */
4765 if (info->attrs[NL80211_ATTR_PEER_AID])
4766 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4767 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4769 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4770 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4772 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4774 err = nl80211_parse_sta_channel_info(info, params);
4778 return nl80211_parse_sta_wme(info, params);
4781 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4783 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4784 struct net_device *dev = info->user_ptr[1];
4785 struct station_parameters params;
4789 memset(¶ms, 0, sizeof(params));
4791 if (!rdev->ops->change_station)
4795 * AID and listen_interval properties can be set only for unassociated
4796 * station. Include these parameters here and will check them in
4797 * cfg80211_check_station_change().
4799 if (info->attrs[NL80211_ATTR_STA_AID])
4800 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4802 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4803 params.listen_interval =
4804 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4806 params.listen_interval = -1;
4808 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4811 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4812 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4815 params.support_p2p_ps = tmp;
4817 params.support_p2p_ps = -1;
4820 if (!info->attrs[NL80211_ATTR_MAC])
4823 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4825 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4826 params.supported_rates =
4827 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4828 params.supported_rates_len =
4829 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4832 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4834 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4835 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4838 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4840 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4841 params.ext_capab_len =
4842 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4845 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4848 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4849 params.plink_action =
4850 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4851 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4855 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4856 params.plink_state =
4857 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4858 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4860 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4861 params.peer_aid = nla_get_u16(
4862 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4863 if (params.peer_aid > IEEE80211_MAX_AID)
4866 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4869 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4870 enum nl80211_mesh_power_mode pm = nla_get_u32(
4871 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4873 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4874 pm > NL80211_MESH_POWER_MAX)
4877 params.local_pm = pm;
4880 /* Include parameters for TDLS peer (will check later) */
4881 err = nl80211_set_station_tdls(info, ¶ms);
4885 params.vlan = get_vlan(info, rdev);
4886 if (IS_ERR(params.vlan))
4887 return PTR_ERR(params.vlan);
4889 switch (dev->ieee80211_ptr->iftype) {
4890 case NL80211_IFTYPE_AP:
4891 case NL80211_IFTYPE_AP_VLAN:
4892 case NL80211_IFTYPE_P2P_GO:
4893 case NL80211_IFTYPE_P2P_CLIENT:
4894 case NL80211_IFTYPE_STATION:
4895 case NL80211_IFTYPE_ADHOC:
4896 case NL80211_IFTYPE_MESH_POINT:
4903 /* driver will call cfg80211_check_station_change() */
4904 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4908 dev_put(params.vlan);
4913 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4915 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4917 struct net_device *dev = info->user_ptr[1];
4918 struct station_parameters params;
4919 u8 *mac_addr = NULL;
4920 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4921 BIT(NL80211_STA_FLAG_ASSOCIATED);
4923 memset(¶ms, 0, sizeof(params));
4925 if (!rdev->ops->add_station)
4928 if (!info->attrs[NL80211_ATTR_MAC])
4931 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4934 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4937 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4938 !info->attrs[NL80211_ATTR_PEER_AID])
4941 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4942 params.supported_rates =
4943 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4944 params.supported_rates_len =
4945 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4946 params.listen_interval =
4947 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4949 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4952 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4953 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4956 params.support_p2p_ps = tmp;
4959 * if not specified, assume it's supported for P2P GO interface,
4960 * and is NOT supported for AP interface
4962 params.support_p2p_ps =
4963 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4966 if (info->attrs[NL80211_ATTR_PEER_AID])
4967 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4969 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4970 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4973 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4975 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4976 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4979 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4981 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4982 params.ext_capab_len =
4983 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4986 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4988 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4990 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4992 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4994 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4995 params.opmode_notif_used = true;
4996 params.opmode_notif =
4997 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5000 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
5001 params.plink_action =
5002 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5003 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5007 err = nl80211_parse_sta_channel_info(info, ¶ms);
5011 err = nl80211_parse_sta_wme(info, ¶ms);
5015 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5018 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5019 * as userspace might just pass through the capabilities from the IEs
5020 * directly, rather than enforcing this restriction and returning an
5021 * error in this case.
5023 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5024 params.ht_capa = NULL;
5025 params.vht_capa = NULL;
5028 /* When you run into this, adjust the code below for the new flag */
5029 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5031 switch (dev->ieee80211_ptr->iftype) {
5032 case NL80211_IFTYPE_AP:
5033 case NL80211_IFTYPE_AP_VLAN:
5034 case NL80211_IFTYPE_P2P_GO:
5035 /* ignore WME attributes if iface/sta is not capable */
5036 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5037 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5038 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5040 /* TDLS peers cannot be added */
5041 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5042 info->attrs[NL80211_ATTR_PEER_AID])
5044 /* but don't bother the driver with it */
5045 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
5047 /* allow authenticated/associated only if driver handles it */
5048 if (!(rdev->wiphy.features &
5049 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
5050 params.sta_flags_mask & auth_assoc)
5053 /* Older userspace, or userspace wanting to be compatible with
5054 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5055 * and assoc flags in the mask, but assumes the station will be
5056 * added as associated anyway since this was the required driver
5057 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5059 * In order to not bother drivers with this quirk in the API
5060 * set the flags in both the mask and set for new stations in
5063 if (!(params.sta_flags_mask & auth_assoc)) {
5064 params.sta_flags_mask |= auth_assoc;
5065 params.sta_flags_set |= auth_assoc;
5068 /* must be last in here for error handling */
5069 params.vlan = get_vlan(info, rdev);
5070 if (IS_ERR(params.vlan))
5071 return PTR_ERR(params.vlan);
5073 case NL80211_IFTYPE_MESH_POINT:
5074 /* ignore uAPSD data */
5075 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5077 /* associated is disallowed */
5078 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5080 /* TDLS peers cannot be added */
5081 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5082 info->attrs[NL80211_ATTR_PEER_AID])
5085 case NL80211_IFTYPE_STATION:
5086 case NL80211_IFTYPE_P2P_CLIENT:
5087 /* ignore uAPSD data */
5088 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5090 /* these are disallowed */
5091 if (params.sta_flags_mask &
5092 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5093 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
5095 /* Only TDLS peers can be added */
5096 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5098 /* Can only add if TDLS ... */
5099 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5101 /* ... with external setup is supported */
5102 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5105 * Older wpa_supplicant versions always mark the TDLS peer
5106 * as authorized, but it shouldn't yet be.
5108 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
5114 /* be aware of params.vlan when changing code here */
5116 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
5119 dev_put(params.vlan);
5123 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5126 struct net_device *dev = info->user_ptr[1];
5127 struct station_del_parameters params;
5129 memset(¶ms, 0, sizeof(params));
5131 if (info->attrs[NL80211_ATTR_MAC])
5132 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5134 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5135 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5136 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5137 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5140 if (!rdev->ops->del_station)
5143 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5145 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5146 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5147 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5150 /* Default to Deauthentication frame */
5151 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5154 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5155 params.reason_code =
5156 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5157 if (params.reason_code == 0)
5158 return -EINVAL; /* 0 is reserved */
5160 /* Default to reason code 2 */
5161 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5164 return rdev_del_station(rdev, dev, ¶ms);
5167 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
5168 int flags, struct net_device *dev,
5169 u8 *dst, u8 *next_hop,
5170 struct mpath_info *pinfo)
5173 struct nlattr *pinfoattr;
5175 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
5179 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5180 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5181 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5182 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5183 goto nla_put_failure;
5185 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5187 goto nla_put_failure;
5188 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5189 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5191 goto nla_put_failure;
5192 if (((pinfo->filled & MPATH_INFO_SN) &&
5193 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5194 ((pinfo->filled & MPATH_INFO_METRIC) &&
5195 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5197 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5198 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5200 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5201 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5203 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5204 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5205 pinfo->discovery_timeout)) ||
5206 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5207 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5208 pinfo->discovery_retries)))
5209 goto nla_put_failure;
5211 nla_nest_end(msg, pinfoattr);
5213 genlmsg_end(msg, hdr);
5217 genlmsg_cancel(msg, hdr);
5221 static int nl80211_dump_mpath(struct sk_buff *skb,
5222 struct netlink_callback *cb)
5224 struct mpath_info pinfo;
5225 struct cfg80211_registered_device *rdev;
5226 struct wireless_dev *wdev;
5228 u8 next_hop[ETH_ALEN];
5229 int path_idx = cb->args[2];
5233 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5237 if (!rdev->ops->dump_mpath) {
5242 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5248 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
5255 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5256 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5257 wdev->netdev, dst, next_hop,
5265 cb->args[2] = path_idx;
5272 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5276 struct net_device *dev = info->user_ptr[1];
5277 struct mpath_info pinfo;
5278 struct sk_buff *msg;
5280 u8 next_hop[ETH_ALEN];
5282 memset(&pinfo, 0, sizeof(pinfo));
5284 if (!info->attrs[NL80211_ATTR_MAC])
5287 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5289 if (!rdev->ops->get_mpath)
5292 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5295 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
5299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5303 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5304 dev, dst, next_hop, &pinfo) < 0) {
5309 return genlmsg_reply(msg, info);
5312 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5315 struct net_device *dev = info->user_ptr[1];
5317 u8 *next_hop = NULL;
5319 if (!info->attrs[NL80211_ATTR_MAC])
5322 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5325 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5326 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5328 if (!rdev->ops->change_mpath)
5331 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5334 return rdev_change_mpath(rdev, dev, dst, next_hop);
5337 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5339 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5340 struct net_device *dev = info->user_ptr[1];
5342 u8 *next_hop = NULL;
5344 if (!info->attrs[NL80211_ATTR_MAC])
5347 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5350 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5351 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5353 if (!rdev->ops->add_mpath)
5356 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5359 return rdev_add_mpath(rdev, dev, dst, next_hop);
5362 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5365 struct net_device *dev = info->user_ptr[1];
5368 if (info->attrs[NL80211_ATTR_MAC])
5369 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5371 if (!rdev->ops->del_mpath)
5374 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5377 return rdev_del_mpath(rdev, dev, dst);
5380 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5384 struct net_device *dev = info->user_ptr[1];
5385 struct mpath_info pinfo;
5386 struct sk_buff *msg;
5390 memset(&pinfo, 0, sizeof(pinfo));
5392 if (!info->attrs[NL80211_ATTR_MAC])
5395 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5397 if (!rdev->ops->get_mpp)
5400 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5403 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5411 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5412 dev, dst, mpp, &pinfo) < 0) {
5417 return genlmsg_reply(msg, info);
5420 static int nl80211_dump_mpp(struct sk_buff *skb,
5421 struct netlink_callback *cb)
5423 struct mpath_info pinfo;
5424 struct cfg80211_registered_device *rdev;
5425 struct wireless_dev *wdev;
5428 int path_idx = cb->args[2];
5432 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5436 if (!rdev->ops->dump_mpp) {
5441 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5447 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5454 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5455 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5456 wdev->netdev, dst, mpp,
5464 cb->args[2] = path_idx;
5471 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5474 struct net_device *dev = info->user_ptr[1];
5475 struct wireless_dev *wdev = dev->ieee80211_ptr;
5476 struct bss_parameters params;
5479 memset(¶ms, 0, sizeof(params));
5480 /* default to not changing parameters */
5481 params.use_cts_prot = -1;
5482 params.use_short_preamble = -1;
5483 params.use_short_slot_time = -1;
5484 params.ap_isolate = -1;
5485 params.ht_opmode = -1;
5486 params.p2p_ctwindow = -1;
5487 params.p2p_opp_ps = -1;
5489 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5490 params.use_cts_prot =
5491 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5492 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5493 params.use_short_preamble =
5494 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5495 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5496 params.use_short_slot_time =
5497 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
5498 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5499 params.basic_rates =
5500 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5501 params.basic_rates_len =
5502 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5504 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5505 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
5506 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5508 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
5510 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5511 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5513 params.p2p_ctwindow =
5514 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5515 if (params.p2p_ctwindow < 0)
5517 if (params.p2p_ctwindow != 0 &&
5518 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5522 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5525 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5527 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5530 params.p2p_opp_ps = tmp;
5531 if (params.p2p_opp_ps &&
5532 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5536 if (!rdev->ops->change_bss)
5539 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5540 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5544 err = rdev_change_bss(rdev, dev, ¶ms);
5550 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5554 enum nl80211_user_reg_hint_type user_reg_hint_type;
5558 * You should only get this when cfg80211 hasn't yet initialized
5559 * completely when built-in to the kernel right between the time
5560 * window between nl80211_init() and regulatory_init(), if that is
5563 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5564 return -EINPROGRESS;
5566 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5567 user_reg_hint_type =
5568 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5570 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5572 switch (user_reg_hint_type) {
5573 case NL80211_USER_REG_HINT_USER:
5574 case NL80211_USER_REG_HINT_CELL_BASE:
5575 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5578 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5579 return regulatory_hint_user(data, user_reg_hint_type);
5580 case NL80211_USER_REG_HINT_INDOOR:
5581 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5582 owner_nlportid = info->snd_portid;
5583 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5589 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5595 static int nl80211_get_mesh_config(struct sk_buff *skb,
5596 struct genl_info *info)
5598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5599 struct net_device *dev = info->user_ptr[1];
5600 struct wireless_dev *wdev = dev->ieee80211_ptr;
5601 struct mesh_config cur_params;
5604 struct nlattr *pinfoattr;
5605 struct sk_buff *msg;
5607 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5610 if (!rdev->ops->get_mesh_config)
5614 /* If not connected, get default parameters */
5615 if (!wdev->mesh_id_len)
5616 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5618 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5624 /* Draw up a netlink message to send back */
5625 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5628 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5629 NL80211_CMD_GET_MESH_CONFIG);
5632 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5634 goto nla_put_failure;
5635 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5636 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5637 cur_params.dot11MeshRetryTimeout) ||
5638 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5639 cur_params.dot11MeshConfirmTimeout) ||
5640 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5641 cur_params.dot11MeshHoldingTimeout) ||
5642 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5643 cur_params.dot11MeshMaxPeerLinks) ||
5644 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5645 cur_params.dot11MeshMaxRetries) ||
5646 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5647 cur_params.dot11MeshTTL) ||
5648 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5649 cur_params.element_ttl) ||
5650 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5651 cur_params.auto_open_plinks) ||
5652 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5653 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5654 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5655 cur_params.dot11MeshHWMPmaxPREQretries) ||
5656 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5657 cur_params.path_refresh_time) ||
5658 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5659 cur_params.min_discovery_timeout) ||
5660 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5661 cur_params.dot11MeshHWMPactivePathTimeout) ||
5662 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5663 cur_params.dot11MeshHWMPpreqMinInterval) ||
5664 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5665 cur_params.dot11MeshHWMPperrMinInterval) ||
5666 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5667 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5668 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5669 cur_params.dot11MeshHWMPRootMode) ||
5670 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5671 cur_params.dot11MeshHWMPRannInterval) ||
5672 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5673 cur_params.dot11MeshGateAnnouncementProtocol) ||
5674 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5675 cur_params.dot11MeshForwarding) ||
5676 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5677 cur_params.rssi_threshold) ||
5678 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5679 cur_params.ht_opmode) ||
5680 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5681 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5682 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5683 cur_params.dot11MeshHWMProotInterval) ||
5684 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5685 cur_params.dot11MeshHWMPconfirmationInterval) ||
5686 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5687 cur_params.power_mode) ||
5688 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5689 cur_params.dot11MeshAwakeWindowDuration) ||
5690 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5691 cur_params.plink_timeout))
5692 goto nla_put_failure;
5693 nla_nest_end(msg, pinfoattr);
5694 genlmsg_end(msg, hdr);
5695 return genlmsg_reply(msg, info);
5698 genlmsg_cancel(msg, hdr);
5704 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5705 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5706 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5707 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5708 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5709 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5710 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5711 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5712 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5713 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5714 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5715 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5716 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5717 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5718 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5719 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5720 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5721 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5722 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5723 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5724 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5725 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5726 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5727 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5728 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5729 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5730 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5731 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5732 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5735 static const struct nla_policy
5736 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5737 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5738 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5739 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5740 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5741 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5742 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5743 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5744 .len = IEEE80211_MAX_DATA_LEN },
5745 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5748 static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5750 u8 val = nla_get_u8(nla);
5751 if (val < min || val > max)
5757 static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5759 u8 val = nla_get_u8(nla);
5760 if (val < min || val > max)
5766 static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5768 u16 val = nla_get_u16(nla);
5769 if (val < min || val > max)
5775 static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5777 u32 val = nla_get_u32(nla);
5778 if (val < min || val > max)
5784 static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5786 s32 val = nla_get_s32(nla);
5787 if (val < min || val > max)
5793 static int nl80211_check_power_mode(const struct nlattr *nla,
5794 enum nl80211_mesh_power_mode min,
5795 enum nl80211_mesh_power_mode max,
5796 enum nl80211_mesh_power_mode *out)
5798 u32 val = nla_get_u32(nla);
5799 if (val < min || val > max)
5805 static int nl80211_parse_mesh_config(struct genl_info *info,
5806 struct mesh_config *cfg,
5809 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5813 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5816 if (fn(tb[attr], min, max, &cfg->param)) \
5818 mask |= (1 << (attr - 1)); \
5822 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5824 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5825 info->attrs[NL80211_ATTR_MESH_CONFIG],
5826 nl80211_meshconf_params_policy))
5829 /* This makes sure that there aren't more than 32 mesh config
5830 * parameters (otherwise our bitfield scheme would not work.) */
5831 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5833 /* Fill in the params struct */
5834 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5835 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5837 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5838 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5840 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5841 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5843 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5844 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5846 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5847 mask, NL80211_MESHCONF_MAX_RETRIES,
5849 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5850 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
5851 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5852 mask, NL80211_MESHCONF_ELEMENT_TTL,
5854 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5855 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5856 nl80211_check_bool);
5857 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5859 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5861 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5862 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5864 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5865 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5867 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5868 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5872 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5876 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5878 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5880 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5882 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5883 dot11MeshHWMPnetDiameterTraversalTime,
5885 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5888 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5890 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5891 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5893 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5894 dot11MeshGateAnnouncementProtocol, 0, 1,
5895 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5896 nl80211_check_bool);
5897 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5898 mask, NL80211_MESHCONF_FORWARDING,
5899 nl80211_check_bool);
5900 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5901 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5904 * Check HT operation mode based on
5905 * IEEE 802.11-2016 9.4.2.57 HT Operation element.
5907 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5908 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5910 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5911 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5912 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5915 /* NON_HT_STA bit is reserved, but some programs set it */
5916 ht_opmode &= ~IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT;
5918 cfg->ht_opmode = ht_opmode;
5919 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
5921 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5923 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5925 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5926 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5929 dot11MeshHWMPconfirmationInterval,
5931 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5933 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5934 NL80211_MESH_POWER_ACTIVE,
5935 NL80211_MESH_POWER_MAX,
5936 mask, NL80211_MESHCONF_POWER_MODE,
5937 nl80211_check_power_mode);
5938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5940 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
5941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5942 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5949 #undef FILL_IN_MESH_PARAM_IF_SET
5952 static int nl80211_parse_mesh_setup(struct genl_info *info,
5953 struct mesh_setup *setup)
5955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5956 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5958 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5960 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5961 info->attrs[NL80211_ATTR_MESH_SETUP],
5962 nl80211_mesh_setup_params_policy))
5965 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5966 setup->sync_method =
5967 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5968 IEEE80211_SYNC_METHOD_VENDOR :
5969 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5971 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5972 setup->path_sel_proto =
5973 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5974 IEEE80211_PATH_PROTOCOL_VENDOR :
5975 IEEE80211_PATH_PROTOCOL_HWMP;
5977 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5978 setup->path_metric =
5979 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5980 IEEE80211_PATH_METRIC_VENDOR :
5981 IEEE80211_PATH_METRIC_AIRTIME;
5983 if (tb[NL80211_MESH_SETUP_IE]) {
5984 struct nlattr *ieattr =
5985 tb[NL80211_MESH_SETUP_IE];
5986 if (!is_valid_ie_attr(ieattr))
5988 setup->ie = nla_data(ieattr);
5989 setup->ie_len = nla_len(ieattr);
5991 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5992 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5994 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5995 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5996 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5997 if (setup->is_secure)
5998 setup->user_mpm = true;
6000 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6001 if (!setup->user_mpm)
6004 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6010 static int nl80211_update_mesh_config(struct sk_buff *skb,
6011 struct genl_info *info)
6013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6014 struct net_device *dev = info->user_ptr[1];
6015 struct wireless_dev *wdev = dev->ieee80211_ptr;
6016 struct mesh_config cfg;
6020 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6023 if (!rdev->ops->update_mesh_config)
6026 err = nl80211_parse_mesh_config(info, &cfg, &mask);
6031 if (!wdev->mesh_id_len)
6035 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
6042 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6043 struct sk_buff *msg)
6045 struct nlattr *nl_reg_rules;
6048 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6049 (regdom->dfs_region &&
6050 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
6051 goto nla_put_failure;
6053 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6055 goto nla_put_failure;
6057 for (i = 0; i < regdom->n_reg_rules; i++) {
6058 struct nlattr *nl_reg_rule;
6059 const struct ieee80211_reg_rule *reg_rule;
6060 const struct ieee80211_freq_range *freq_range;
6061 const struct ieee80211_power_rule *power_rule;
6062 unsigned int max_bandwidth_khz;
6064 reg_rule = ®dom->reg_rules[i];
6065 freq_range = ®_rule->freq_range;
6066 power_rule = ®_rule->power_rule;
6068 nl_reg_rule = nla_nest_start(msg, i);
6070 goto nla_put_failure;
6072 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6073 if (!max_bandwidth_khz)
6074 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6077 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6079 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6080 freq_range->start_freq_khz) ||
6081 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6082 freq_range->end_freq_khz) ||
6083 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
6084 max_bandwidth_khz) ||
6085 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6086 power_rule->max_antenna_gain) ||
6087 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
6088 power_rule->max_eirp) ||
6089 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6090 reg_rule->dfs_cac_ms))
6091 goto nla_put_failure;
6093 nla_nest_end(msg, nl_reg_rule);
6096 nla_nest_end(msg, nl_reg_rules);
6103 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6105 const struct ieee80211_regdomain *regdom = NULL;
6106 struct cfg80211_registered_device *rdev;
6107 struct wiphy *wiphy = NULL;
6108 struct sk_buff *msg;
6111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6115 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6116 NL80211_CMD_GET_REG);
6120 if (info->attrs[NL80211_ATTR_WIPHY]) {
6123 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6126 return PTR_ERR(rdev);
6129 wiphy = &rdev->wiphy;
6130 self_managed = wiphy->regulatory_flags &
6131 REGULATORY_WIPHY_SELF_MANAGED;
6132 regdom = get_wiphy_regdom(wiphy);
6134 /* a self-managed-reg device must have a private regdom */
6135 if (WARN_ON(!regdom && self_managed)) {
6141 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6142 goto nla_put_failure;
6145 if (!wiphy && reg_last_request_cell_base() &&
6146 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6147 NL80211_USER_REG_HINT_CELL_BASE))
6148 goto nla_put_failure;
6153 regdom = rcu_dereference(cfg80211_regdomain);
6155 if (nl80211_put_regdom(regdom, msg))
6156 goto nla_put_failure_rcu;
6160 genlmsg_end(msg, hdr);
6161 return genlmsg_reply(msg, info);
6163 nla_put_failure_rcu:
6166 genlmsg_cancel(msg, hdr);
6172 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6173 u32 seq, int flags, struct wiphy *wiphy,
6174 const struct ieee80211_regdomain *regdom)
6176 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6177 NL80211_CMD_GET_REG);
6182 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6184 if (nl80211_put_regdom(regdom, msg))
6185 goto nla_put_failure;
6187 if (!wiphy && reg_last_request_cell_base() &&
6188 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6189 NL80211_USER_REG_HINT_CELL_BASE))
6190 goto nla_put_failure;
6193 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6194 goto nla_put_failure;
6196 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6197 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6198 goto nla_put_failure;
6200 genlmsg_end(msg, hdr);
6204 genlmsg_cancel(msg, hdr);
6208 static int nl80211_get_reg_dump(struct sk_buff *skb,
6209 struct netlink_callback *cb)
6211 const struct ieee80211_regdomain *regdom = NULL;
6212 struct cfg80211_registered_device *rdev;
6213 int err, reg_idx, start = cb->args[2];
6217 if (cfg80211_regdomain && start == 0) {
6218 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6220 rtnl_dereference(cfg80211_regdomain));
6225 /* the global regdom is idx 0 */
6227 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6228 regdom = get_wiphy_regdom(&rdev->wiphy);
6232 if (++reg_idx <= start)
6235 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6236 NLM_F_MULTI, &rdev->wiphy, regdom);
6243 cb->args[2] = reg_idx;
6250 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
6251 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6252 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6253 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6254 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6255 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6256 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6257 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6258 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6261 static int parse_reg_rule(struct nlattr *tb[],
6262 struct ieee80211_reg_rule *reg_rule)
6264 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
6265 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
6267 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6269 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6271 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6273 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6275 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6278 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6280 freq_range->start_freq_khz =
6281 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6282 freq_range->end_freq_khz =
6283 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6284 freq_range->max_bandwidth_khz =
6285 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6287 power_rule->max_eirp =
6288 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6290 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6291 power_rule->max_antenna_gain =
6292 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6294 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6295 reg_rule->dfs_cac_ms =
6296 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6301 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6303 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6304 struct nlattr *nl_reg_rule;
6306 int rem_reg_rules, r;
6307 u32 num_rules = 0, rule_idx = 0, size_of_regd;
6308 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
6309 struct ieee80211_regdomain *rd;
6311 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6314 if (!info->attrs[NL80211_ATTR_REG_RULES])
6317 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6319 if (info->attrs[NL80211_ATTR_DFS_REGION])
6320 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6322 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6325 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
6329 if (!reg_is_valid_request(alpha2))
6332 size_of_regd = sizeof(struct ieee80211_regdomain) +
6333 num_rules * sizeof(struct ieee80211_reg_rule);
6335 rd = kzalloc(size_of_regd, GFP_KERNEL);
6339 rd->n_reg_rules = num_rules;
6340 rd->alpha2[0] = alpha2[0];
6341 rd->alpha2[1] = alpha2[1];
6344 * Disable DFS master mode if the DFS region was
6345 * not supported or known on this kernel.
6347 if (reg_supported_dfs_region(dfs_region))
6348 rd->dfs_region = dfs_region;
6350 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6352 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
6353 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
6357 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6363 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6369 /* set_regdom takes ownership of rd */
6370 return set_regdom(rd, REGD_SOURCE_CRDA);
6375 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
6377 static int validate_scan_freqs(struct nlattr *freqs)
6379 struct nlattr *attr1, *attr2;
6380 int n_channels = 0, tmp1, tmp2;
6382 nla_for_each_nested(attr1, freqs, tmp1)
6383 if (nla_len(attr1) != sizeof(u32))
6386 nla_for_each_nested(attr1, freqs, tmp1) {
6389 * Some hardware has a limited channel list for
6390 * scanning, and it is pretty much nonsensical
6391 * to scan for a channel twice, so disallow that
6392 * and don't require drivers to check that the
6393 * channel list they get isn't longer than what
6394 * they can scan, as long as they can scan all
6395 * the channels they registered at once.
6397 nla_for_each_nested(attr2, freqs, tmp2)
6398 if (attr1 != attr2 &&
6399 nla_get_u32(attr1) == nla_get_u32(attr2))
6406 static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
6408 return b < NUM_NL80211_BANDS && wiphy->bands[b];
6411 static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6412 struct cfg80211_bss_selection *bss_select)
6414 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6415 struct nlattr *nest;
6420 /* only process one nested attribute */
6421 nest = nla_data(nla);
6422 if (!nla_ok(nest, nla_len(nest)))
6425 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
6426 nla_len(nest), nl80211_bss_select_policy);
6430 /* only one attribute may be given */
6431 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6439 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6441 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6442 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6444 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6445 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6446 bss_select->param.band_pref =
6447 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6448 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6452 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6453 struct nl80211_bss_select_rssi_adjust *adj_param;
6455 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6456 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6457 bss_select->param.adjust.band = adj_param->band;
6458 bss_select->param.adjust.delta = adj_param->delta;
6459 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6463 /* user-space did not provide behaviour attribute */
6464 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6467 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6473 static int nl80211_parse_random_mac(struct nlattr **attrs,
6474 u8 *mac_addr, u8 *mac_addr_mask)
6478 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
6479 eth_zero_addr(mac_addr);
6480 eth_zero_addr(mac_addr_mask);
6482 mac_addr_mask[0] = 0x3;
6487 /* need both or none */
6488 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6491 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6492 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6494 /* don't allow or configure an mcast address */
6495 if (!is_multicast_ether_addr(mac_addr_mask) ||
6496 is_multicast_ether_addr(mac_addr))
6500 * allow users to pass a MAC address that has bits set outside
6501 * of the mask, but don't bother drivers with having to deal
6504 for (i = 0; i < ETH_ALEN; i++)
6505 mac_addr[i] &= mac_addr_mask[i];
6510 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6513 struct wireless_dev *wdev = info->user_ptr[1];
6514 struct cfg80211_scan_request *request;
6515 struct nlattr *attr;
6516 struct wiphy *wiphy;
6517 int err, tmp, n_ssids = 0, n_channels, i;
6520 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6523 wiphy = &rdev->wiphy;
6525 if (wdev->iftype == NL80211_IFTYPE_NAN)
6528 if (!rdev->ops->scan)
6531 if (rdev->scan_req || rdev->scan_msg) {
6536 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6537 n_channels = validate_scan_freqs(
6538 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6544 n_channels = ieee80211_get_num_supported_channels(wiphy);
6547 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6548 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6551 if (n_ssids > wiphy->max_scan_ssids) {
6556 if (info->attrs[NL80211_ATTR_IE])
6557 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6561 if (ie_len > wiphy->max_scan_ie_len) {
6566 request = kzalloc(sizeof(*request)
6567 + sizeof(*request->ssids) * n_ssids
6568 + sizeof(*request->channels) * n_channels
6569 + ie_len, GFP_KERNEL);
6576 request->ssids = (void *)&request->channels[n_channels];
6577 request->n_ssids = n_ssids;
6580 request->ie = (void *)(request->ssids + n_ssids);
6582 request->ie = (void *)(request->channels + n_channels);
6586 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6587 /* user specified, bail out if channel not found */
6588 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
6589 struct ieee80211_channel *chan;
6591 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6598 /* ignore disabled channels */
6599 if (chan->flags & IEEE80211_CHAN_DISABLED)
6602 request->channels[i] = chan;
6606 enum nl80211_band band;
6609 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6612 if (!wiphy->bands[band])
6614 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6615 struct ieee80211_channel *chan;
6617 chan = &wiphy->bands[band]->channels[j];
6619 if (chan->flags & IEEE80211_CHAN_DISABLED)
6622 request->channels[i] = chan;
6633 request->n_channels = i;
6637 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
6638 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6642 request->ssids[i].ssid_len = nla_len(attr);
6643 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
6648 if (info->attrs[NL80211_ATTR_IE]) {
6649 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6650 memcpy((void *)request->ie,
6651 nla_data(info->attrs[NL80211_ATTR_IE]),
6655 for (i = 0; i < NUM_NL80211_BANDS; i++)
6656 if (wiphy->bands[i])
6658 (1 << wiphy->bands[i]->n_bitrates) - 1;
6660 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6661 nla_for_each_nested(attr,
6662 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6664 enum nl80211_band band = nla_type(attr);
6666 if (band < 0 || band >= NUM_NL80211_BANDS) {
6671 if (!wiphy->bands[band])
6674 err = ieee80211_get_ratemask(wiphy->bands[band],
6677 &request->rates[band]);
6683 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6684 if (!wiphy_ext_feature_isset(wiphy,
6685 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6691 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6692 request->duration_mandatory =
6693 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6696 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
6697 request->flags = nla_get_u32(
6698 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
6699 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6700 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6705 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6706 if (!(wiphy->features &
6707 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6712 if (wdev->current_bss) {
6717 err = nl80211_parse_random_mac(info->attrs,
6719 request->mac_addr_mask);
6726 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6728 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6729 * BSSID to scan for. This was problematic because that same attribute
6730 * was already used for another purpose (local random MAC address). The
6731 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6732 * compatibility with older userspace components, also use the
6733 * NL80211_ATTR_MAC value here if it can be determined to be used for
6734 * the specific BSSID use case instead of the random MAC address
6735 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6737 if (info->attrs[NL80211_ATTR_BSSID])
6738 memcpy(request->bssid,
6739 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6740 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6741 info->attrs[NL80211_ATTR_MAC])
6742 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6745 eth_broadcast_addr(request->bssid);
6747 request->wdev = wdev;
6748 request->wiphy = &rdev->wiphy;
6749 request->scan_start = jiffies;
6751 rdev->scan_req = request;
6752 err = rdev_scan(rdev, request);
6755 nl80211_send_scan_start(rdev, wdev);
6757 dev_hold(wdev->netdev);
6760 rdev->scan_req = NULL;
6768 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6771 struct wireless_dev *wdev = info->user_ptr[1];
6773 if (!rdev->ops->abort_scan)
6779 if (!rdev->scan_req)
6782 rdev_abort_scan(rdev, wdev);
6787 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6788 struct cfg80211_sched_scan_request *request,
6789 struct nlattr **attrs)
6791 int tmp, err, i = 0;
6792 struct nlattr *attr;
6794 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6798 * If scan plans are not specified,
6799 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6800 * case one scan plan will be set with the specified scan
6801 * interval and infinite number of iterations.
6803 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6806 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6810 request->scan_plans[0].interval =
6811 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6812 if (!request->scan_plans[0].interval)
6815 if (request->scan_plans[0].interval >
6816 wiphy->max_sched_scan_plan_interval)
6817 request->scan_plans[0].interval =
6818 wiphy->max_sched_scan_plan_interval;
6823 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6824 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6826 if (WARN_ON(i >= n_plans))
6829 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6830 nla_data(attr), nla_len(attr),
6831 nl80211_plan_policy);
6835 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6838 request->scan_plans[i].interval =
6839 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6840 if (!request->scan_plans[i].interval ||
6841 request->scan_plans[i].interval >
6842 wiphy->max_sched_scan_plan_interval)
6845 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6846 request->scan_plans[i].iterations =
6847 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6848 if (!request->scan_plans[i].iterations ||
6849 (request->scan_plans[i].iterations >
6850 wiphy->max_sched_scan_plan_iterations))
6852 } else if (i < n_plans - 1) {
6854 * All scan plans but the last one must specify
6855 * a finite number of iterations
6864 * The last scan plan must not specify the number of
6865 * iterations, it is supposed to run infinitely
6867 if (request->scan_plans[n_plans - 1].iterations)
6873 static struct cfg80211_sched_scan_request *
6874 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6875 struct nlattr **attrs)
6877 struct cfg80211_sched_scan_request *request;
6878 struct nlattr *attr;
6879 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6880 enum nl80211_band band;
6882 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
6883 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
6885 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6886 return ERR_PTR(-EINVAL);
6888 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6889 n_channels = validate_scan_freqs(
6890 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6892 return ERR_PTR(-EINVAL);
6894 n_channels = ieee80211_get_num_supported_channels(wiphy);
6897 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6898 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6902 if (n_ssids > wiphy->max_sched_scan_ssids)
6903 return ERR_PTR(-EINVAL);
6906 * First, count the number of 'real' matchsets. Due to an issue with
6907 * the old implementation, matchsets containing only the RSSI attribute
6908 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6909 * RSSI for all matchsets, rather than their own matchset for reporting
6910 * all APs with a strong RSSI. This is needed to be compatible with
6911 * older userspace that treated a matchset with only the RSSI as the
6912 * global RSSI for all other matchsets - if there are other matchsets.
6914 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6915 nla_for_each_nested(attr,
6916 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6918 struct nlattr *rssi;
6920 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6921 nla_data(attr), nla_len(attr),
6922 nl80211_match_policy);
6924 return ERR_PTR(err);
6925 /* add other standalone attributes here */
6926 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6930 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6932 default_match_rssi = nla_get_s32(rssi);
6936 /* However, if there's no other matchset, add the RSSI one */
6937 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6940 if (n_match_sets > wiphy->max_match_sets)
6941 return ERR_PTR(-EINVAL);
6943 if (attrs[NL80211_ATTR_IE])
6944 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6948 if (ie_len > wiphy->max_sched_scan_ie_len)
6949 return ERR_PTR(-EINVAL);
6951 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6953 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6954 * each scan plan already specifies its own interval
6956 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6957 return ERR_PTR(-EINVAL);
6959 nla_for_each_nested(attr,
6960 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6964 * The scan interval attribute is kept for backward
6965 * compatibility. If no scan plans are specified and sched scan
6966 * interval is specified, one scan plan will be set with this
6967 * scan interval and infinite number of iterations.
6969 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6970 return ERR_PTR(-EINVAL);
6975 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6976 return ERR_PTR(-EINVAL);
6978 request = kzalloc(sizeof(*request)
6979 + sizeof(*request->ssids) * n_ssids
6980 + sizeof(*request->match_sets) * n_match_sets
6981 + sizeof(*request->scan_plans) * n_plans
6982 + sizeof(*request->channels) * n_channels
6983 + ie_len, GFP_KERNEL);
6985 return ERR_PTR(-ENOMEM);
6988 request->ssids = (void *)&request->channels[n_channels];
6989 request->n_ssids = n_ssids;
6992 request->ie = (void *)(request->ssids + n_ssids);
6994 request->ie = (void *)(request->channels + n_channels);
6999 request->match_sets = (void *)(request->ie + ie_len);
7001 request->match_sets =
7002 (void *)(request->ssids + n_ssids);
7004 request->match_sets =
7005 (void *)(request->channels + n_channels);
7007 request->n_match_sets = n_match_sets;
7010 request->scan_plans = (void *)(request->match_sets +
7012 else if (request->ie)
7013 request->scan_plans = (void *)(request->ie + ie_len);
7015 request->scan_plans = (void *)(request->ssids + n_ssids);
7017 request->scan_plans = (void *)(request->channels + n_channels);
7019 request->n_scan_plans = n_plans;
7022 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7023 /* user specified, bail out if channel not found */
7024 nla_for_each_nested(attr,
7025 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
7027 struct ieee80211_channel *chan;
7029 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7036 /* ignore disabled channels */
7037 if (chan->flags & IEEE80211_CHAN_DISABLED)
7040 request->channels[i] = chan;
7045 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7048 if (!wiphy->bands[band])
7050 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7051 struct ieee80211_channel *chan;
7053 chan = &wiphy->bands[band]->channels[j];
7055 if (chan->flags & IEEE80211_CHAN_DISABLED)
7058 request->channels[i] = chan;
7069 request->n_channels = i;
7073 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7075 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
7079 request->ssids[i].ssid_len = nla_len(attr);
7080 memcpy(request->ssids[i].ssid, nla_data(attr),
7087 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7088 nla_for_each_nested(attr,
7089 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7091 struct nlattr *ssid, *rssi;
7093 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7094 nla_data(attr), nla_len(attr),
7095 nl80211_match_policy);
7098 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
7100 if (WARN_ON(i >= n_match_sets)) {
7101 /* this indicates a programming error,
7102 * the loop above should have verified
7109 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7113 memcpy(request->match_sets[i].ssid.ssid,
7114 nla_data(ssid), nla_len(ssid));
7115 request->match_sets[i].ssid.ssid_len =
7117 /* special attribute - old implementation w/a */
7118 request->match_sets[i].rssi_thold =
7120 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7122 request->match_sets[i].rssi_thold =
7128 /* there was no other matchset, so the RSSI one is alone */
7129 if (i == 0 && n_match_sets)
7130 request->match_sets[0].rssi_thold = default_match_rssi;
7132 request->min_rssi_thold = INT_MAX;
7133 for (i = 0; i < n_match_sets; i++)
7134 request->min_rssi_thold =
7135 min(request->match_sets[i].rssi_thold,
7136 request->min_rssi_thold);
7138 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
7142 request->ie_len = ie_len;
7143 memcpy((void *)request->ie,
7144 nla_data(attrs[NL80211_ATTR_IE]),
7148 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
7149 request->flags = nla_get_u32(
7150 attrs[NL80211_ATTR_SCAN_FLAGS]);
7151 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7152 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
7157 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7158 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7160 if (!wdev) /* must be net-detect */
7161 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7163 if (!(wiphy->features & flg)) {
7168 if (wdev && wdev->current_bss) {
7173 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7174 request->mac_addr_mask);
7180 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7182 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7184 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7188 request->scan_start = jiffies;
7194 return ERR_PTR(err);
7197 static int nl80211_start_sched_scan(struct sk_buff *skb,
7198 struct genl_info *info)
7200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7201 struct net_device *dev = info->user_ptr[1];
7202 struct wireless_dev *wdev = dev->ieee80211_ptr;
7203 struct cfg80211_sched_scan_request *sched_scan_req;
7206 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7207 !rdev->ops->sched_scan_start)
7210 if (rdev->sched_scan_req)
7211 return -EINPROGRESS;
7213 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7216 err = PTR_ERR_OR_ZERO(sched_scan_req);
7220 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
7224 sched_scan_req->dev = dev;
7225 sched_scan_req->wiphy = &rdev->wiphy;
7227 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7228 sched_scan_req->owner_nlportid = info->snd_portid;
7230 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
7232 nl80211_send_sched_scan(rdev, dev,
7233 NL80211_CMD_START_SCHED_SCAN);
7237 kfree(sched_scan_req);
7242 static int nl80211_stop_sched_scan(struct sk_buff *skb,
7243 struct genl_info *info)
7245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7247 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
7248 !rdev->ops->sched_scan_stop)
7251 return __cfg80211_stop_sched_scan(rdev, false);
7254 static int nl80211_start_radar_detection(struct sk_buff *skb,
7255 struct genl_info *info)
7257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7258 struct net_device *dev = info->user_ptr[1];
7259 struct wireless_dev *wdev = dev->ieee80211_ptr;
7260 struct cfg80211_chan_def chandef;
7261 enum nl80211_dfs_regions dfs_region;
7262 unsigned int cac_time_ms;
7265 dfs_region = reg_get_dfs_region(wdev->wiphy);
7266 if (dfs_region == NL80211_DFS_UNSET)
7269 err = nl80211_parse_chandef(rdev, info, &chandef);
7273 if (netif_carrier_ok(dev))
7276 if (wdev->cac_started)
7279 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
7287 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
7290 if (!rdev->ops->start_radar_detection)
7293 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7294 if (WARN_ON(!cac_time_ms))
7295 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7297 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
7299 wdev->chandef = chandef;
7300 wdev->cac_started = true;
7301 wdev->cac_start_time = jiffies;
7302 wdev->cac_time_ms = cac_time_ms;
7307 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7310 struct net_device *dev = info->user_ptr[1];
7311 struct wireless_dev *wdev = dev->ieee80211_ptr;
7312 struct cfg80211_csa_settings params;
7313 /* csa_attrs is defined static to avoid waste of stack size - this
7314 * function is called under RTNL lock, so this should not be a problem.
7316 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
7318 bool need_new_beacon = false;
7322 if (!rdev->ops->channel_switch ||
7323 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7326 switch (dev->ieee80211_ptr->iftype) {
7327 case NL80211_IFTYPE_AP:
7328 case NL80211_IFTYPE_P2P_GO:
7329 need_new_beacon = true;
7331 /* useless if AP is not running */
7332 if (!wdev->beacon_interval)
7335 case NL80211_IFTYPE_ADHOC:
7336 if (!wdev->ssid_len)
7339 case NL80211_IFTYPE_MESH_POINT:
7340 if (!wdev->mesh_id_len)
7347 memset(¶ms, 0, sizeof(params));
7349 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7350 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7353 /* only important for AP, IBSS and mesh create IEs internally */
7354 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
7357 /* Even though the attribute is u32, the specification says
7358 * u8, so let's make sure we don't overflow.
7360 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7364 params.count = cs_count;
7366 if (!need_new_beacon)
7369 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
7373 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7374 info->attrs[NL80211_ATTR_CSA_IES],
7379 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
7383 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7386 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7387 if (!len || (len % sizeof(u16)))
7390 params.n_counter_offsets_beacon = len / sizeof(u16);
7391 if (rdev->wiphy.max_num_csa_counters &&
7392 (params.n_counter_offsets_beacon >
7393 rdev->wiphy.max_num_csa_counters))
7396 params.counter_offsets_beacon =
7397 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7399 /* sanity checks - counters should fit and be the same */
7400 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7401 u16 offset = params.counter_offsets_beacon[i];
7403 if (offset >= params.beacon_csa.tail_len)
7406 if (params.beacon_csa.tail[offset] != params.count)
7410 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
7411 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7412 if (!len || (len % sizeof(u16)))
7415 params.n_counter_offsets_presp = len / sizeof(u16);
7416 if (rdev->wiphy.max_num_csa_counters &&
7417 (params.n_counter_offsets_presp >
7418 rdev->wiphy.max_num_csa_counters))
7421 params.counter_offsets_presp =
7422 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7424 /* sanity checks - counters should fit and be the same */
7425 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7426 u16 offset = params.counter_offsets_presp[i];
7428 if (offset >= params.beacon_csa.probe_resp_len)
7431 if (params.beacon_csa.probe_resp[offset] !=
7438 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
7442 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
7446 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7453 params.radar_required = true;
7455 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7456 params.block_tx = true;
7459 err = rdev_channel_switch(rdev, dev, ¶ms);
7465 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7467 struct cfg80211_registered_device *rdev,
7468 struct wireless_dev *wdev,
7469 struct cfg80211_internal_bss *intbss)
7471 struct cfg80211_bss *res = &intbss->pub;
7472 const struct cfg80211_bss_ies *ies;
7476 ASSERT_WDEV_LOCK(wdev);
7478 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
7479 NL80211_CMD_NEW_SCAN_RESULTS);
7483 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7485 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7486 goto nla_put_failure;
7488 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7489 goto nla_put_failure;
7490 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7492 goto nla_put_failure;
7494 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7496 goto nla_put_failure;
7497 if ((!is_zero_ether_addr(res->bssid) &&
7498 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
7499 goto nla_put_failure;
7502 /* indicate whether we have probe response data or not */
7503 if (rcu_access_pointer(res->proberesp_ies) &&
7504 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7505 goto fail_unlock_rcu;
7507 /* this pointer prefers to be pointed to probe response data
7508 * but is always valid
7510 ies = rcu_dereference(res->ies);
7512 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7514 goto fail_unlock_rcu;
7515 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7516 ies->len, ies->data))
7517 goto fail_unlock_rcu;
7520 /* and this pointer is always (unless driver didn't know) beacon data */
7521 ies = rcu_dereference(res->beacon_ies);
7522 if (ies && ies->from_beacon) {
7523 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7525 goto fail_unlock_rcu;
7526 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7527 ies->len, ies->data))
7528 goto fail_unlock_rcu;
7532 if (res->beacon_interval &&
7533 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7534 goto nla_put_failure;
7535 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7536 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
7537 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
7538 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7539 jiffies_to_msecs(jiffies - intbss->ts)))
7540 goto nla_put_failure;
7542 if (intbss->parent_tsf &&
7543 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7544 intbss->parent_tsf, NL80211_BSS_PAD) ||
7545 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7546 intbss->parent_bssid)))
7547 goto nla_put_failure;
7549 if (intbss->ts_boottime &&
7550 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7551 intbss->ts_boottime, NL80211_BSS_PAD))
7552 goto nla_put_failure;
7554 switch (rdev->wiphy.signal_type) {
7555 case CFG80211_SIGNAL_TYPE_MBM:
7556 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7557 goto nla_put_failure;
7559 case CFG80211_SIGNAL_TYPE_UNSPEC:
7560 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7561 goto nla_put_failure;
7567 switch (wdev->iftype) {
7568 case NL80211_IFTYPE_P2P_CLIENT:
7569 case NL80211_IFTYPE_STATION:
7570 if (intbss == wdev->current_bss &&
7571 nla_put_u32(msg, NL80211_BSS_STATUS,
7572 NL80211_BSS_STATUS_ASSOCIATED))
7573 goto nla_put_failure;
7575 case NL80211_IFTYPE_ADHOC:
7576 if (intbss == wdev->current_bss &&
7577 nla_put_u32(msg, NL80211_BSS_STATUS,
7578 NL80211_BSS_STATUS_IBSS_JOINED))
7579 goto nla_put_failure;
7585 nla_nest_end(msg, bss);
7587 genlmsg_end(msg, hdr);
7593 genlmsg_cancel(msg, hdr);
7597 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
7599 struct cfg80211_registered_device *rdev;
7600 struct cfg80211_internal_bss *scan;
7601 struct wireless_dev *wdev;
7602 int start = cb->args[2], idx = 0;
7606 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7613 spin_lock_bh(&rdev->bss_lock);
7614 cfg80211_bss_expire(rdev);
7616 cb->seq = rdev->bss_generation;
7618 list_for_each_entry(scan, &rdev->bss_list, list) {
7621 if (nl80211_send_bss(skb, cb,
7622 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7623 rdev, wdev, scan) < 0) {
7629 spin_unlock_bh(&rdev->bss_lock);
7638 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
7639 int flags, struct net_device *dev,
7640 bool allow_radio_stats,
7641 struct survey_info *survey)
7644 struct nlattr *infoattr;
7646 /* skip radio stats if userspace didn't request them */
7647 if (!survey->channel && !allow_radio_stats)
7650 hdr = nl80211hdr_put(msg, portid, seq, flags,
7651 NL80211_CMD_NEW_SURVEY_RESULTS);
7655 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7656 goto nla_put_failure;
7658 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7660 goto nla_put_failure;
7662 if (survey->channel &&
7663 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
7664 survey->channel->center_freq))
7665 goto nla_put_failure;
7667 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7668 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7669 goto nla_put_failure;
7670 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7671 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7672 goto nla_put_failure;
7673 if ((survey->filled & SURVEY_INFO_TIME) &&
7674 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7675 survey->time, NL80211_SURVEY_INFO_PAD))
7676 goto nla_put_failure;
7677 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
7678 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7679 survey->time_busy, NL80211_SURVEY_INFO_PAD))
7680 goto nla_put_failure;
7681 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
7682 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7683 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
7684 goto nla_put_failure;
7685 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
7686 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7687 survey->time_rx, NL80211_SURVEY_INFO_PAD))
7688 goto nla_put_failure;
7689 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
7690 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7691 survey->time_tx, NL80211_SURVEY_INFO_PAD))
7692 goto nla_put_failure;
7693 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
7694 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7695 survey->time_scan, NL80211_SURVEY_INFO_PAD))
7696 goto nla_put_failure;
7698 nla_nest_end(msg, infoattr);
7700 genlmsg_end(msg, hdr);
7704 genlmsg_cancel(msg, hdr);
7708 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
7710 struct survey_info survey;
7711 struct cfg80211_registered_device *rdev;
7712 struct wireless_dev *wdev;
7713 int survey_idx = cb->args[2];
7718 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7722 /* prepare_wdev_dump parsed the attributes */
7723 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7725 if (!wdev->netdev) {
7730 if (!rdev->ops->dump_survey) {
7736 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
7742 /* don't send disabled channels, but do send non-channel data */
7743 if (survey.channel &&
7744 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
7749 if (nl80211_send_survey(skb,
7750 NETLINK_CB(cb->skb).portid,
7751 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7752 wdev->netdev, radio_stats, &survey) < 0)
7758 cb->args[2] = survey_idx;
7765 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7767 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7768 NL80211_WPA_VERSION_2));
7771 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7774 struct net_device *dev = info->user_ptr[1];
7775 struct ieee80211_channel *chan;
7776 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7777 int err, ssid_len, ie_len = 0, sae_data_len = 0;
7778 enum nl80211_auth_type auth_type;
7779 struct key_parse key;
7780 bool local_state_change;
7782 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7785 if (!info->attrs[NL80211_ATTR_MAC])
7788 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7791 if (!info->attrs[NL80211_ATTR_SSID])
7794 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7797 err = nl80211_parse_key(info, &key);
7802 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7804 if (!key.p.key || !key.p.key_len)
7806 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7807 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7808 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7809 key.p.key_len != WLAN_KEY_LEN_WEP104))
7822 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7823 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7832 if (!rdev->ops->auth)
7835 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7836 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7839 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7840 chan = nl80211_get_valid_chan(&rdev->wiphy,
7841 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7845 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7846 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7848 if (info->attrs[NL80211_ATTR_IE]) {
7849 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7850 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7853 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7854 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
7857 if (auth_type == NL80211_AUTHTYPE_SAE &&
7858 !info->attrs[NL80211_ATTR_SAE_DATA])
7861 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7862 if (auth_type != NL80211_AUTHTYPE_SAE)
7864 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7865 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7866 /* need to include at least Auth Transaction and Status Code */
7867 if (sae_data_len < 4)
7871 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7874 * Since we no longer track auth state, ignore
7875 * requests to only change local state.
7877 if (local_state_change)
7880 wdev_lock(dev->ieee80211_ptr);
7881 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7882 ssid, ssid_len, ie, ie_len,
7883 key.p.key, key.p.key_len, key.idx,
7884 sae_data, sae_data_len);
7885 wdev_unlock(dev->ieee80211_ptr);
7889 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7890 struct genl_info *info,
7891 struct cfg80211_crypto_settings *settings,
7894 memset(settings, 0, sizeof(*settings));
7896 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7898 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7901 proto = nla_get_u16(
7902 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7903 settings->control_port_ethertype = cpu_to_be16(proto);
7904 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7907 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7908 settings->control_port_no_encrypt = true;
7910 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7912 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7916 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7917 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7918 settings->n_ciphers_pairwise = len / sizeof(u32);
7920 if (len % sizeof(u32))
7923 if (settings->n_ciphers_pairwise > cipher_limit)
7926 memcpy(settings->ciphers_pairwise, data, len);
7928 for (i = 0; i < settings->n_ciphers_pairwise; i++)
7929 if (!cfg80211_supported_cipher_suite(
7931 settings->ciphers_pairwise[i]))
7935 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7936 settings->cipher_group =
7937 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
7938 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7939 settings->cipher_group))
7943 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7944 settings->wpa_versions =
7945 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7946 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7950 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7954 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7955 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7956 settings->n_akm_suites = len / sizeof(u32);
7958 if (len % sizeof(u32))
7961 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7964 memcpy(settings->akm_suites, data, len);
7970 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7973 struct net_device *dev = info->user_ptr[1];
7974 struct ieee80211_channel *chan;
7975 struct cfg80211_assoc_request req = {};
7976 const u8 *bssid, *ssid;
7977 int err, ssid_len = 0;
7979 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7982 if (!info->attrs[NL80211_ATTR_MAC] ||
7983 !info->attrs[NL80211_ATTR_SSID] ||
7984 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7987 if (!rdev->ops->assoc)
7990 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7991 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7994 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7996 chan = nl80211_get_valid_chan(&rdev->wiphy,
7997 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8001 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8002 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8004 if (info->attrs[NL80211_ATTR_IE]) {
8005 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8006 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8009 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8010 enum nl80211_mfp mfp =
8011 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8012 if (mfp == NL80211_MFP_REQUIRED)
8014 else if (mfp != NL80211_MFP_NO)
8018 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8019 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8021 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8022 req.flags |= ASSOC_REQ_DISABLE_HT;
8024 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8025 memcpy(&req.ht_capa_mask,
8026 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8027 sizeof(req.ht_capa_mask));
8029 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8030 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8032 memcpy(&req.ht_capa,
8033 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8034 sizeof(req.ht_capa));
8037 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8038 req.flags |= ASSOC_REQ_DISABLE_VHT;
8040 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8041 memcpy(&req.vht_capa_mask,
8042 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8043 sizeof(req.vht_capa_mask));
8045 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8046 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8048 memcpy(&req.vht_capa,
8049 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8050 sizeof(req.vht_capa));
8053 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8054 if (!((rdev->wiphy.features &
8055 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8056 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8057 !wiphy_ext_feature_isset(&rdev->wiphy,
8058 NL80211_EXT_FEATURE_RRM))
8060 req.flags |= ASSOC_REQ_USE_RRM;
8063 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
8065 wdev_lock(dev->ieee80211_ptr);
8066 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8067 ssid, ssid_len, &req);
8068 wdev_unlock(dev->ieee80211_ptr);
8074 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8076 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8077 struct net_device *dev = info->user_ptr[1];
8078 const u8 *ie = NULL, *bssid;
8079 int ie_len = 0, err;
8081 bool local_state_change;
8083 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8086 if (!info->attrs[NL80211_ATTR_MAC])
8089 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8092 if (!rdev->ops->deauth)
8095 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8096 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8099 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8101 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8102 if (reason_code == 0) {
8103 /* Reason Code 0 is reserved */
8107 if (info->attrs[NL80211_ATTR_IE]) {
8108 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8109 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8112 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8114 wdev_lock(dev->ieee80211_ptr);
8115 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8116 local_state_change);
8117 wdev_unlock(dev->ieee80211_ptr);
8121 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8124 struct net_device *dev = info->user_ptr[1];
8125 const u8 *ie = NULL, *bssid;
8126 int ie_len = 0, err;
8128 bool local_state_change;
8130 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8133 if (!info->attrs[NL80211_ATTR_MAC])
8136 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8139 if (!rdev->ops->disassoc)
8142 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8143 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8146 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8148 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8149 if (reason_code == 0) {
8150 /* Reason Code 0 is reserved */
8154 if (info->attrs[NL80211_ATTR_IE]) {
8155 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8156 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8159 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8161 wdev_lock(dev->ieee80211_ptr);
8162 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8163 local_state_change);
8164 wdev_unlock(dev->ieee80211_ptr);
8169 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
8170 int mcast_rate[NUM_NL80211_BANDS],
8173 struct wiphy *wiphy = &rdev->wiphy;
8177 for (band = 0; band < NUM_NL80211_BANDS; band++) {
8178 struct ieee80211_supported_band *sband;
8180 sband = wiphy->bands[band];
8184 for (i = 0; i < sband->n_bitrates; i++) {
8185 if (sband->bitrates[i].bitrate == rateval) {
8186 mcast_rate[band] = i + 1;
8196 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8198 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8199 struct net_device *dev = info->user_ptr[1];
8200 struct cfg80211_ibss_params ibss;
8201 struct wiphy *wiphy;
8202 struct cfg80211_cached_keys *connkeys = NULL;
8205 memset(&ibss, 0, sizeof(ibss));
8207 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8210 if (!info->attrs[NL80211_ATTR_SSID] ||
8211 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8214 ibss.beacon_interval = 100;
8216 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8217 ibss.beacon_interval =
8218 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8220 err = cfg80211_validate_beacon_int(rdev, ibss.beacon_interval);
8224 if (!rdev->ops->join_ibss)
8227 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8230 wiphy = &rdev->wiphy;
8232 if (info->attrs[NL80211_ATTR_MAC]) {
8233 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8235 if (!is_valid_ether_addr(ibss.bssid))
8238 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8239 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8241 if (info->attrs[NL80211_ATTR_IE]) {
8242 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8243 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8246 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8250 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8251 NL80211_IFTYPE_ADHOC))
8254 switch (ibss.chandef.width) {
8255 case NL80211_CHAN_WIDTH_5:
8256 case NL80211_CHAN_WIDTH_10:
8257 case NL80211_CHAN_WIDTH_20_NOHT:
8259 case NL80211_CHAN_WIDTH_20:
8260 case NL80211_CHAN_WIDTH_40:
8261 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8264 case NL80211_CHAN_WIDTH_80:
8265 case NL80211_CHAN_WIDTH_80P80:
8266 case NL80211_CHAN_WIDTH_160:
8267 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8269 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8270 NL80211_EXT_FEATURE_VHT_IBSS))
8277 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
8278 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8280 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8282 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8284 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8285 struct ieee80211_supported_band *sband =
8286 wiphy->bands[ibss.chandef.chan->band];
8288 err = ieee80211_get_ratemask(sband, rates, n_rates,
8294 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8295 memcpy(&ibss.ht_capa_mask,
8296 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8297 sizeof(ibss.ht_capa_mask));
8299 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8300 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8302 memcpy(&ibss.ht_capa,
8303 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8304 sizeof(ibss.ht_capa));
8307 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8308 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8309 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8312 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8315 connkeys = nl80211_parse_connkeys(rdev,
8316 info->attrs[NL80211_ATTR_KEYS],
8318 if (IS_ERR(connkeys))
8319 return PTR_ERR(connkeys);
8321 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8329 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8331 ibss.userspace_handles_dfs =
8332 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8334 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
8340 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8342 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8343 struct net_device *dev = info->user_ptr[1];
8345 if (!rdev->ops->leave_ibss)
8348 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8351 return cfg80211_leave_ibss(rdev, dev, false);
8354 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8357 struct net_device *dev = info->user_ptr[1];
8358 int mcast_rate[NUM_NL80211_BANDS];
8362 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
8363 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8364 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
8367 if (!rdev->ops->set_mcast_rate)
8370 memset(mcast_rate, 0, sizeof(mcast_rate));
8372 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8375 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8376 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8379 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
8384 static struct sk_buff *
8385 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
8386 struct wireless_dev *wdev, int approxlen,
8387 u32 portid, u32 seq, enum nl80211_commands cmd,
8388 enum nl80211_attrs attr,
8389 const struct nl80211_vendor_cmd_info *info,
8392 struct sk_buff *skb;
8394 struct nlattr *data;
8396 skb = nlmsg_new(approxlen + 100, gfp);
8400 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8406 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8407 goto nla_put_failure;
8410 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8412 goto nla_put_failure;
8413 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8415 goto nla_put_failure;
8419 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8420 wdev_id(wdev), NL80211_ATTR_PAD))
8421 goto nla_put_failure;
8423 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8424 wdev->netdev->ifindex))
8425 goto nla_put_failure;
8428 data = nla_nest_start(skb, attr);
8430 goto nla_put_failure;
8432 ((void **)skb->cb)[0] = rdev;
8433 ((void **)skb->cb)[1] = hdr;
8434 ((void **)skb->cb)[2] = data;
8443 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
8444 struct wireless_dev *wdev,
8445 enum nl80211_commands cmd,
8446 enum nl80211_attrs attr,
8447 int vendor_event_idx,
8448 int approxlen, gfp_t gfp)
8450 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
8451 const struct nl80211_vendor_cmd_info *info;
8454 case NL80211_CMD_TESTMODE:
8455 if (WARN_ON(vendor_event_idx != -1))
8459 case NL80211_CMD_VENDOR:
8460 if (WARN_ON(vendor_event_idx < 0 ||
8461 vendor_event_idx >= wiphy->n_vendor_events))
8463 info = &wiphy->vendor_events[vendor_event_idx];
8470 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
8471 cmd, attr, info, gfp);
8473 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8475 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8477 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8478 void *hdr = ((void **)skb->cb)[1];
8479 struct nlattr *data = ((void **)skb->cb)[2];
8480 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8482 /* clear CB data for netlink core to own from now on */
8483 memset(skb->cb, 0, sizeof(skb->cb));
8485 nla_nest_end(skb, data);
8486 genlmsg_end(skb, hdr);
8488 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8489 mcgrp = NL80211_MCGRP_VENDOR;
8491 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8494 EXPORT_SYMBOL(__cfg80211_send_event_skb);
8496 #ifdef CONFIG_NL80211_TESTMODE
8497 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8500 struct wireless_dev *wdev =
8501 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8504 if (!rdev->ops->testmode_cmd)
8508 err = PTR_ERR(wdev);
8512 } else if (wdev->wiphy != &rdev->wiphy) {
8516 if (!info->attrs[NL80211_ATTR_TESTDATA])
8519 rdev->cur_cmd_info = info;
8520 err = rdev_testmode_cmd(rdev, wdev,
8521 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8522 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
8523 rdev->cur_cmd_info = NULL;
8528 static int nl80211_testmode_dump(struct sk_buff *skb,
8529 struct netlink_callback *cb)
8531 struct cfg80211_registered_device *rdev;
8541 * 0 is a valid index, but not valid for args[0],
8542 * so we need to offset by 1.
8544 phy_idx = cb->args[0] - 1;
8546 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8547 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8552 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8553 nl80211_fam.attrbuf);
8555 err = PTR_ERR(rdev);
8558 phy_idx = rdev->wiphy_idx;
8561 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8563 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8567 data = nla_data((void *)cb->args[1]);
8568 data_len = nla_len((void *)cb->args[1]);
8571 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8577 if (!rdev->ops->testmode_dump) {
8583 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
8584 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8585 NL80211_CMD_TESTMODE);
8586 struct nlattr *tmdata;
8591 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
8592 genlmsg_cancel(skb, hdr);
8596 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8598 genlmsg_cancel(skb, hdr);
8601 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
8602 nla_nest_end(skb, tmdata);
8604 if (err == -ENOBUFS || err == -ENOENT) {
8605 genlmsg_cancel(skb, hdr);
8608 genlmsg_cancel(skb, hdr);
8612 genlmsg_end(skb, hdr);
8617 cb->args[0] = phy_idx + 1;
8624 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8627 struct net_device *dev = info->user_ptr[1];
8628 struct cfg80211_connect_params connect;
8629 struct wiphy *wiphy;
8630 struct cfg80211_cached_keys *connkeys = NULL;
8633 memset(&connect, 0, sizeof(connect));
8635 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8638 if (!info->attrs[NL80211_ATTR_SSID] ||
8639 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8642 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8644 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8645 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8646 NL80211_CMD_CONNECT))
8649 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8651 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8653 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
8654 NL80211_MAX_NR_CIPHER_SUITES);
8658 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8659 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8662 wiphy = &rdev->wiphy;
8664 connect.bg_scan_period = -1;
8665 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8666 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8667 connect.bg_scan_period =
8668 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8671 if (info->attrs[NL80211_ATTR_MAC])
8672 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8673 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8674 connect.bssid_hint =
8675 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
8676 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8677 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8679 if (info->attrs[NL80211_ATTR_IE]) {
8680 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8681 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8684 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8685 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8686 if (connect.mfp != NL80211_MFP_REQUIRED &&
8687 connect.mfp != NL80211_MFP_NO)
8690 connect.mfp = NL80211_MFP_NO;
8693 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8694 connect.prev_bssid =
8695 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8697 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8698 connect.channel = nl80211_get_valid_chan(
8699 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8700 if (!connect.channel)
8702 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
8703 connect.channel_hint = nl80211_get_valid_chan(
8704 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8705 if (!connect.channel_hint)
8709 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8710 connkeys = nl80211_parse_connkeys(rdev,
8711 info->attrs[NL80211_ATTR_KEYS], NULL);
8712 if (IS_ERR(connkeys))
8713 return PTR_ERR(connkeys);
8716 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8717 connect.flags |= ASSOC_REQ_DISABLE_HT;
8719 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8720 memcpy(&connect.ht_capa_mask,
8721 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8722 sizeof(connect.ht_capa_mask));
8724 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8725 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
8729 memcpy(&connect.ht_capa,
8730 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8731 sizeof(connect.ht_capa));
8734 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8735 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8737 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8738 memcpy(&connect.vht_capa_mask,
8739 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8740 sizeof(connect.vht_capa_mask));
8742 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8743 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
8747 memcpy(&connect.vht_capa,
8748 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8749 sizeof(connect.vht_capa));
8752 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8753 if (!((rdev->wiphy.features &
8754 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8755 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8756 !wiphy_ext_feature_isset(&rdev->wiphy,
8757 NL80211_EXT_FEATURE_RRM)) {
8761 connect.flags |= ASSOC_REQ_USE_RRM;
8764 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
8765 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
8770 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8771 /* bss selection makes no sense if bssid is set */
8772 if (connect.bssid) {
8777 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8778 wiphy, &connect.bss_select);
8785 wdev_lock(dev->ieee80211_ptr);
8786 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8787 connect.prev_bssid);
8788 wdev_unlock(dev->ieee80211_ptr);
8794 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8797 struct net_device *dev = info->user_ptr[1];
8801 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8802 reason = WLAN_REASON_DEAUTH_LEAVING;
8804 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8809 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8810 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8813 wdev_lock(dev->ieee80211_ptr);
8814 ret = cfg80211_disconnect(rdev, dev, reason, true);
8815 wdev_unlock(dev->ieee80211_ptr);
8819 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8821 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8825 if (info->attrs[NL80211_ATTR_PID]) {
8826 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8828 net = get_net_ns_by_pid(pid);
8829 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8830 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
8832 net = get_net_ns_by_fd(fd);
8838 return PTR_ERR(net);
8842 /* check if anything to do */
8843 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8844 err = cfg80211_switch_netns(rdev, net);
8850 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8853 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8854 struct cfg80211_pmksa *pmksa) = NULL;
8855 struct net_device *dev = info->user_ptr[1];
8856 struct cfg80211_pmksa pmksa;
8858 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8860 if (!info->attrs[NL80211_ATTR_MAC])
8863 if (!info->attrs[NL80211_ATTR_PMKID])
8866 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8867 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8869 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8870 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8873 switch (info->genlhdr->cmd) {
8874 case NL80211_CMD_SET_PMKSA:
8875 rdev_ops = rdev->ops->set_pmksa;
8877 case NL80211_CMD_DEL_PMKSA:
8878 rdev_ops = rdev->ops->del_pmksa;
8888 return rdev_ops(&rdev->wiphy, dev, &pmksa);
8891 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8894 struct net_device *dev = info->user_ptr[1];
8896 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8897 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8900 if (!rdev->ops->flush_pmksa)
8903 return rdev_flush_pmksa(rdev, dev);
8906 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8909 struct net_device *dev = info->user_ptr[1];
8910 u8 action_code, dialog_token;
8911 u32 peer_capability = 0;
8916 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8917 !rdev->ops->tdls_mgmt)
8920 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8921 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8922 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8923 !info->attrs[NL80211_ATTR_IE] ||
8924 !info->attrs[NL80211_ATTR_MAC])
8927 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8928 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8929 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8930 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
8931 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
8932 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8934 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
8936 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
8937 dialog_token, status_code, peer_capability,
8939 nla_data(info->attrs[NL80211_ATTR_IE]),
8940 nla_len(info->attrs[NL80211_ATTR_IE]));
8943 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8946 struct net_device *dev = info->user_ptr[1];
8947 enum nl80211_tdls_operation operation;
8950 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8951 !rdev->ops->tdls_oper)
8954 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8955 !info->attrs[NL80211_ATTR_MAC])
8958 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8959 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8961 return rdev_tdls_oper(rdev, dev, peer, operation);
8964 static int nl80211_remain_on_channel(struct sk_buff *skb,
8965 struct genl_info *info)
8967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8968 struct wireless_dev *wdev = info->user_ptr[1];
8969 struct cfg80211_chan_def chandef;
8970 struct sk_buff *msg;
8976 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8977 !info->attrs[NL80211_ATTR_DURATION])
8980 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8982 if (!rdev->ops->remain_on_channel ||
8983 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8987 * We should be on that channel for at least a minimum amount of
8988 * time (10ms) but no longer than the driver supports.
8990 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8991 duration > rdev->wiphy.max_remain_on_channel_duration)
8994 err = nl80211_parse_chandef(rdev, info, &chandef);
8998 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9002 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9003 NL80211_CMD_REMAIN_ON_CHANNEL);
9009 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9015 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9017 goto nla_put_failure;
9019 genlmsg_end(msg, hdr);
9021 return genlmsg_reply(msg, info);
9030 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9031 struct genl_info *info)
9033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9034 struct wireless_dev *wdev = info->user_ptr[1];
9037 if (!info->attrs[NL80211_ATTR_COOKIE])
9040 if (!rdev->ops->cancel_remain_on_channel)
9043 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9045 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9048 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9049 struct genl_info *info)
9051 struct cfg80211_bitrate_mask mask;
9052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9053 struct net_device *dev = info->user_ptr[1];
9056 if (!rdev->ops->set_bitrate_mask)
9059 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9063 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
9066 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
9068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9069 struct wireless_dev *wdev = info->user_ptr[1];
9070 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
9072 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9075 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9076 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
9078 switch (wdev->iftype) {
9079 case NL80211_IFTYPE_STATION:
9080 case NL80211_IFTYPE_ADHOC:
9081 case NL80211_IFTYPE_P2P_CLIENT:
9082 case NL80211_IFTYPE_AP:
9083 case NL80211_IFTYPE_AP_VLAN:
9084 case NL80211_IFTYPE_MESH_POINT:
9085 case NL80211_IFTYPE_P2P_GO:
9086 case NL80211_IFTYPE_P2P_DEVICE:
9088 case NL80211_IFTYPE_NAN:
9093 /* not much point in registering if we can't reply */
9094 if (!rdev->ops->mgmt_tx)
9097 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
9098 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9099 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
9102 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
9104 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9105 struct wireless_dev *wdev = info->user_ptr[1];
9106 struct cfg80211_chan_def chandef;
9110 struct sk_buff *msg = NULL;
9111 struct cfg80211_mgmt_tx_params params = {
9112 .dont_wait_for_ack =
9113 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9116 if (!info->attrs[NL80211_ATTR_FRAME])
9119 if (!rdev->ops->mgmt_tx)
9122 switch (wdev->iftype) {
9123 case NL80211_IFTYPE_P2P_DEVICE:
9124 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9126 case NL80211_IFTYPE_STATION:
9127 case NL80211_IFTYPE_ADHOC:
9128 case NL80211_IFTYPE_P2P_CLIENT:
9129 case NL80211_IFTYPE_AP:
9130 case NL80211_IFTYPE_AP_VLAN:
9131 case NL80211_IFTYPE_MESH_POINT:
9132 case NL80211_IFTYPE_P2P_GO:
9134 case NL80211_IFTYPE_NAN:
9139 if (info->attrs[NL80211_ATTR_DURATION]) {
9140 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9142 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9145 * We should wait on the channel for at least a minimum amount
9146 * of time (10ms) but no longer than the driver supports.
9148 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9149 params.wait > rdev->wiphy.max_remain_on_channel_duration)
9153 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
9155 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9158 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
9160 /* get the channel if any has been specified, otherwise pass NULL to
9161 * the driver. The latter will use the current one
9163 chandef.chan = NULL;
9164 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9165 err = nl80211_parse_chandef(rdev, info, &chandef);
9170 if (!chandef.chan && params.offchan)
9173 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9174 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9176 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9177 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9180 if (len % sizeof(u16))
9183 params.n_csa_offsets = len / sizeof(u16);
9184 params.csa_offsets =
9185 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9187 /* check that all the offsets fit the frame */
9188 for (i = 0; i < params.n_csa_offsets; i++) {
9189 if (params.csa_offsets[i] >= params.len)
9194 if (!params.dont_wait_for_ack) {
9195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9199 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9207 params.chan = chandef.chan;
9208 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
9213 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9215 goto nla_put_failure;
9217 genlmsg_end(msg, hdr);
9218 return genlmsg_reply(msg, info);
9230 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9233 struct wireless_dev *wdev = info->user_ptr[1];
9236 if (!info->attrs[NL80211_ATTR_COOKIE])
9239 if (!rdev->ops->mgmt_tx_cancel_wait)
9242 switch (wdev->iftype) {
9243 case NL80211_IFTYPE_STATION:
9244 case NL80211_IFTYPE_ADHOC:
9245 case NL80211_IFTYPE_P2P_CLIENT:
9246 case NL80211_IFTYPE_AP:
9247 case NL80211_IFTYPE_AP_VLAN:
9248 case NL80211_IFTYPE_P2P_GO:
9249 case NL80211_IFTYPE_P2P_DEVICE:
9251 case NL80211_IFTYPE_NAN:
9256 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9258 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
9261 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9263 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9264 struct wireless_dev *wdev;
9265 struct net_device *dev = info->user_ptr[1];
9270 if (!info->attrs[NL80211_ATTR_PS_STATE])
9273 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9275 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9278 wdev = dev->ieee80211_ptr;
9280 if (!rdev->ops->set_power_mgmt)
9283 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9285 if (state == wdev->ps)
9288 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
9294 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9296 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9297 enum nl80211_ps_state ps_state;
9298 struct wireless_dev *wdev;
9299 struct net_device *dev = info->user_ptr[1];
9300 struct sk_buff *msg;
9304 wdev = dev->ieee80211_ptr;
9306 if (!rdev->ops->set_power_mgmt)
9309 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9313 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9314 NL80211_CMD_GET_POWER_SAVE);
9321 ps_state = NL80211_PS_ENABLED;
9323 ps_state = NL80211_PS_DISABLED;
9325 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9326 goto nla_put_failure;
9328 genlmsg_end(msg, hdr);
9329 return genlmsg_reply(msg, info);
9338 static const struct nla_policy
9339 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
9340 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9341 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9342 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
9343 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9344 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9345 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
9348 static int nl80211_set_cqm_txe(struct genl_info *info,
9349 u32 rate, u32 pkts, u32 intvl)
9351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9352 struct net_device *dev = info->user_ptr[1];
9353 struct wireless_dev *wdev = dev->ieee80211_ptr;
9355 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
9358 if (!rdev->ops->set_cqm_txe_config)
9361 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9362 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9365 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
9368 static int nl80211_set_cqm_rssi(struct genl_info *info,
9369 s32 threshold, u32 hysteresis)
9371 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9372 struct net_device *dev = info->user_ptr[1];
9373 struct wireless_dev *wdev = dev->ieee80211_ptr;
9378 /* disabling - hysteresis should also be zero then */
9382 if (!rdev->ops->set_cqm_rssi_config)
9385 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9386 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9389 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
9392 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9394 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9398 cqm = info->attrs[NL80211_ATTR_CQM];
9402 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9403 nl80211_attr_cqm_policy);
9407 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9408 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
9409 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9410 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
9412 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9415 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9416 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9417 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9418 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9419 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9420 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9422 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9428 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9431 struct net_device *dev = info->user_ptr[1];
9432 struct ocb_setup setup = {};
9435 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9439 return cfg80211_join_ocb(rdev, dev, &setup);
9442 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9445 struct net_device *dev = info->user_ptr[1];
9447 return cfg80211_leave_ocb(rdev, dev);
9450 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9453 struct net_device *dev = info->user_ptr[1];
9454 struct mesh_config cfg;
9455 struct mesh_setup setup;
9458 /* start with default */
9459 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
9460 memcpy(&setup, &default_mesh_setup, sizeof(setup));
9462 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
9463 /* and parse parameters if given */
9464 err = nl80211_parse_mesh_config(info, &cfg, NULL);
9469 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9470 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9473 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9474 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9476 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9477 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9478 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9481 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9482 setup.beacon_interval =
9483 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9485 err = cfg80211_validate_beacon_int(rdev, setup.beacon_interval);
9490 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9492 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9493 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9497 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9498 /* parse additional setup parameters if given */
9499 err = nl80211_parse_mesh_setup(info, &setup);
9505 cfg.auto_open_plinks = false;
9507 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9508 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9512 /* cfg80211_join_mesh() will sort it out */
9513 setup.chandef.chan = NULL;
9516 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9517 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9519 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9520 struct ieee80211_supported_band *sband;
9522 if (!setup.chandef.chan)
9525 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9527 err = ieee80211_get_ratemask(sband, rates, n_rates,
9528 &setup.basic_rates);
9533 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9534 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9538 if (!setup.chandef.chan)
9541 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9542 &setup.beacon_rate);
9547 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
9550 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9552 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9553 struct net_device *dev = info->user_ptr[1];
9555 return cfg80211_leave_mesh(rdev, dev);
9559 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9560 struct cfg80211_registered_device *rdev)
9562 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
9563 struct nlattr *nl_pats, *nl_pat;
9566 if (!wowlan->n_patterns)
9569 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9573 for (i = 0; i < wowlan->n_patterns; i++) {
9574 nl_pat = nla_nest_start(msg, i + 1);
9577 pat_len = wowlan->patterns[i].pattern_len;
9578 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
9579 wowlan->patterns[i].mask) ||
9580 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9581 wowlan->patterns[i].pattern) ||
9582 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9583 wowlan->patterns[i].pkt_offset))
9585 nla_nest_end(msg, nl_pat);
9587 nla_nest_end(msg, nl_pats);
9592 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9593 struct cfg80211_wowlan_tcp *tcp)
9595 struct nlattr *nl_tcp;
9600 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9604 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9605 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
9606 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9607 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9608 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9609 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9610 tcp->payload_len, tcp->payload) ||
9611 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9612 tcp->data_interval) ||
9613 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9614 tcp->wake_len, tcp->wake_data) ||
9615 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9616 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9619 if (tcp->payload_seq.len &&
9620 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9621 sizeof(tcp->payload_seq), &tcp->payload_seq))
9624 if (tcp->payload_tok.len &&
9625 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9626 sizeof(tcp->payload_tok) + tcp->tokens_size,
9630 nla_nest_end(msg, nl_tcp);
9635 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9636 struct cfg80211_sched_scan_request *req)
9638 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
9644 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9648 if (req->n_scan_plans == 1 &&
9649 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9650 req->scan_plans[0].interval * 1000))
9653 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9656 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9660 for (i = 0; i < req->n_channels; i++) {
9661 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9665 nla_nest_end(msg, freqs);
9667 if (req->n_match_sets) {
9668 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9672 for (i = 0; i < req->n_match_sets; i++) {
9673 match = nla_nest_start(msg, i);
9677 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9678 req->match_sets[i].ssid.ssid_len,
9679 req->match_sets[i].ssid.ssid))
9681 nla_nest_end(msg, match);
9683 nla_nest_end(msg, matches);
9686 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9690 for (i = 0; i < req->n_scan_plans; i++) {
9691 scan_plan = nla_nest_start(msg, i + 1);
9696 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9697 req->scan_plans[i].interval) ||
9698 (req->scan_plans[i].iterations &&
9699 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9700 req->scan_plans[i].iterations)))
9702 nla_nest_end(msg, scan_plan);
9704 nla_nest_end(msg, scan_plans);
9706 nla_nest_end(msg, nd);
9711 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9714 struct sk_buff *msg;
9716 u32 size = NLMSG_DEFAULT_SIZE;
9718 if (!rdev->wiphy.wowlan)
9721 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
9722 /* adjust size to have room for all the data */
9723 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9724 rdev->wiphy.wowlan_config->tcp->payload_len +
9725 rdev->wiphy.wowlan_config->tcp->wake_len +
9726 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
9729 msg = nlmsg_new(size, GFP_KERNEL);
9733 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9734 NL80211_CMD_GET_WOWLAN);
9736 goto nla_put_failure;
9738 if (rdev->wiphy.wowlan_config) {
9739 struct nlattr *nl_wowlan;
9741 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9743 goto nla_put_failure;
9745 if ((rdev->wiphy.wowlan_config->any &&
9746 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9747 (rdev->wiphy.wowlan_config->disconnect &&
9748 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9749 (rdev->wiphy.wowlan_config->magic_pkt &&
9750 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9751 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9752 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9753 (rdev->wiphy.wowlan_config->eap_identity_req &&
9754 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9755 (rdev->wiphy.wowlan_config->four_way_handshake &&
9756 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9757 (rdev->wiphy.wowlan_config->rfkill_release &&
9758 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9759 goto nla_put_failure;
9761 if (nl80211_send_wowlan_patterns(msg, rdev))
9762 goto nla_put_failure;
9764 if (nl80211_send_wowlan_tcp(msg,
9765 rdev->wiphy.wowlan_config->tcp))
9766 goto nla_put_failure;
9768 if (nl80211_send_wowlan_nd(
9770 rdev->wiphy.wowlan_config->nd_config))
9771 goto nla_put_failure;
9773 nla_nest_end(msg, nl_wowlan);
9776 genlmsg_end(msg, hdr);
9777 return genlmsg_reply(msg, info);
9784 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9785 struct nlattr *attr,
9786 struct cfg80211_wowlan *trig)
9788 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9789 struct cfg80211_wowlan_tcp *cfg;
9790 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9791 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9793 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9796 if (!rdev->wiphy.wowlan->tcp)
9799 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9800 nla_data(attr), nla_len(attr),
9801 nl80211_wowlan_tcp_policy);
9805 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9806 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9807 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9808 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9809 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9810 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9811 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9812 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9815 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
9816 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
9819 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
9820 rdev->wiphy.wowlan->tcp->data_interval_max ||
9821 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
9824 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
9825 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
9828 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9829 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9832 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9833 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9835 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9836 tokens_size = tokln - sizeof(*tok);
9838 if (!tok->len || tokens_size % tok->len)
9840 if (!rdev->wiphy.wowlan->tcp->tok)
9842 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9844 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9846 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9848 if (tok->offset + tok->len > data_size)
9852 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9853 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9854 if (!rdev->wiphy.wowlan->tcp->seq)
9856 if (seq->len == 0 || seq->len > 4)
9858 if (seq->len + seq->offset > data_size)
9862 size = sizeof(*cfg);
9864 size += wake_size + wake_mask_size;
9865 size += tokens_size;
9867 cfg = kzalloc(size, GFP_KERNEL);
9870 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9871 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9872 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9874 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9875 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9879 /* allocate a socket and port for it and use it */
9880 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9881 IPPROTO_TCP, &cfg->sock, 1);
9886 if (inet_csk_get_port(cfg->sock->sk, port)) {
9887 sock_release(cfg->sock);
9891 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9897 cfg->src_port = port;
9900 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9901 cfg->payload_len = data_size;
9902 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9903 memcpy((void *)cfg->payload,
9904 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9907 cfg->payload_seq = *seq;
9908 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9909 cfg->wake_len = wake_size;
9910 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9911 memcpy((void *)cfg->wake_data,
9912 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9914 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9915 data_size + wake_size;
9916 memcpy((void *)cfg->wake_mask,
9917 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9920 cfg->tokens_size = tokens_size;
9921 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9929 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9930 const struct wiphy_wowlan_support *wowlan,
9931 struct nlattr *attr,
9932 struct cfg80211_wowlan *trig)
9937 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9941 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9946 err = nla_parse(tb, NL80211_ATTR_MAX,
9947 nla_data(attr), nla_len(attr),
9952 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9953 err = PTR_ERR_OR_ZERO(trig->nd_config);
9955 trig->nd_config = NULL;
9962 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9965 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9966 struct cfg80211_wowlan new_triggers = {};
9967 struct cfg80211_wowlan *ntrig;
9968 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9970 bool prev_enabled = rdev->wiphy.wowlan_config;
9971 bool regular = false;
9976 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9977 cfg80211_rdev_free_wowlan(rdev);
9978 rdev->wiphy.wowlan_config = NULL;
9982 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9983 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9984 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9985 nl80211_wowlan_policy);
9989 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9990 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9992 new_triggers.any = true;
9995 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9996 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9998 new_triggers.disconnect = true;
10002 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10003 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10005 new_triggers.magic_pkt = true;
10009 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10012 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10013 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10015 new_triggers.gtk_rekey_failure = true;
10019 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10020 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10022 new_triggers.eap_identity_req = true;
10026 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10027 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10029 new_triggers.four_way_handshake = true;
10033 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10034 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10036 new_triggers.rfkill_release = true;
10040 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10041 struct nlattr *pat;
10042 int n_patterns = 0;
10043 int rem, pat_len, mask_len, pkt_offset;
10044 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10048 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10051 if (n_patterns > wowlan->n_patterns)
10054 new_triggers.patterns = kcalloc(n_patterns,
10055 sizeof(new_triggers.patterns[0]),
10057 if (!new_triggers.patterns)
10060 new_triggers.n_patterns = n_patterns;
10063 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10067 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10068 nla_len(pat), nl80211_packet_pattern_policy);
10070 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10071 !pat_tb[NL80211_PKTPAT_PATTERN])
10073 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10074 mask_len = DIV_ROUND_UP(pat_len, 8);
10075 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10077 if (pat_len > wowlan->pattern_max_len ||
10078 pat_len < wowlan->pattern_min_len)
10081 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10084 pkt_offset = nla_get_u32(
10085 pat_tb[NL80211_PKTPAT_OFFSET]);
10086 if (pkt_offset > wowlan->max_pkt_offset)
10088 new_triggers.patterns[i].pkt_offset = pkt_offset;
10090 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10095 new_triggers.patterns[i].mask = mask_pat;
10096 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10098 mask_pat += mask_len;
10099 new_triggers.patterns[i].pattern = mask_pat;
10100 new_triggers.patterns[i].pattern_len = pat_len;
10102 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10108 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
10110 err = nl80211_parse_wowlan_tcp(
10111 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10117 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
10119 err = nl80211_parse_wowlan_nd(
10120 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10126 /* The 'any' trigger means the device continues operating more or less
10127 * as in its normal operation mode and wakes up the host on most of the
10128 * normal interrupts (like packet RX, ...)
10129 * It therefore makes little sense to combine with the more constrained
10130 * wakeup trigger modes.
10132 if (new_triggers.any && regular) {
10137 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10142 cfg80211_rdev_free_wowlan(rdev);
10143 rdev->wiphy.wowlan_config = ntrig;
10146 if (rdev->ops->set_wakeup &&
10147 prev_enabled != !!rdev->wiphy.wowlan_config)
10148 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
10152 for (i = 0; i < new_triggers.n_patterns; i++)
10153 kfree(new_triggers.patterns[i].mask);
10154 kfree(new_triggers.patterns);
10155 if (new_triggers.tcp && new_triggers.tcp->sock)
10156 sock_release(new_triggers.tcp->sock);
10157 kfree(new_triggers.tcp);
10158 kfree(new_triggers.nd_config);
10163 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10164 struct cfg80211_registered_device *rdev)
10166 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10168 struct cfg80211_coalesce_rules *rule;
10170 if (!rdev->coalesce->n_rules)
10173 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10177 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10178 nl_rule = nla_nest_start(msg, i + 1);
10182 rule = &rdev->coalesce->rules[i];
10183 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10187 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10191 nl_pats = nla_nest_start(msg,
10192 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10196 for (j = 0; j < rule->n_patterns; j++) {
10197 nl_pat = nla_nest_start(msg, j + 1);
10200 pat_len = rule->patterns[j].pattern_len;
10201 if (nla_put(msg, NL80211_PKTPAT_MASK,
10202 DIV_ROUND_UP(pat_len, 8),
10203 rule->patterns[j].mask) ||
10204 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10205 rule->patterns[j].pattern) ||
10206 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10207 rule->patterns[j].pkt_offset))
10209 nla_nest_end(msg, nl_pat);
10211 nla_nest_end(msg, nl_pats);
10212 nla_nest_end(msg, nl_rule);
10214 nla_nest_end(msg, nl_rules);
10219 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10221 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10222 struct sk_buff *msg;
10225 if (!rdev->wiphy.coalesce)
10226 return -EOPNOTSUPP;
10228 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10232 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10233 NL80211_CMD_GET_COALESCE);
10235 goto nla_put_failure;
10237 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10238 goto nla_put_failure;
10240 genlmsg_end(msg, hdr);
10241 return genlmsg_reply(msg, info);
10248 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10250 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10252 struct cfg80211_coalesce_rules *rule;
10257 for (i = 0; i < coalesce->n_rules; i++) {
10258 rule = &coalesce->rules[i];
10259 for (j = 0; j < rule->n_patterns; j++)
10260 kfree(rule->patterns[j].mask);
10261 kfree(rule->patterns);
10263 kfree(coalesce->rules);
10265 rdev->coalesce = NULL;
10268 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10269 struct nlattr *rule,
10270 struct cfg80211_coalesce_rules *new_rule)
10273 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10274 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10275 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10276 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10278 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
10279 nla_len(rule), nl80211_coalesce_policy);
10283 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10285 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10286 if (new_rule->delay > coalesce->max_delay)
10289 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10290 new_rule->condition =
10291 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10292 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10293 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10296 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10299 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10302 if (n_patterns > coalesce->n_patterns)
10305 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10307 if (!new_rule->patterns)
10310 new_rule->n_patterns = n_patterns;
10313 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10317 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10318 nla_len(pat), nl80211_packet_pattern_policy);
10319 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10320 !pat_tb[NL80211_PKTPAT_PATTERN])
10322 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10323 mask_len = DIV_ROUND_UP(pat_len, 8);
10324 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10326 if (pat_len > coalesce->pattern_max_len ||
10327 pat_len < coalesce->pattern_min_len)
10330 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10333 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10334 if (pkt_offset > coalesce->max_pkt_offset)
10336 new_rule->patterns[i].pkt_offset = pkt_offset;
10338 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10342 new_rule->patterns[i].mask = mask_pat;
10343 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10346 mask_pat += mask_len;
10347 new_rule->patterns[i].pattern = mask_pat;
10348 new_rule->patterns[i].pattern_len = pat_len;
10349 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10357 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10360 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10361 struct cfg80211_coalesce new_coalesce = {};
10362 struct cfg80211_coalesce *n_coalesce;
10363 int err, rem_rule, n_rules = 0, i, j;
10364 struct nlattr *rule;
10365 struct cfg80211_coalesce_rules *tmp_rule;
10367 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10368 return -EOPNOTSUPP;
10370 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10371 cfg80211_rdev_free_coalesce(rdev);
10372 rdev_set_coalesce(rdev, NULL);
10376 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10379 if (n_rules > coalesce->n_rules)
10382 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10384 if (!new_coalesce.rules)
10387 new_coalesce.n_rules = n_rules;
10390 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10392 err = nl80211_parse_coalesce_rule(rdev, rule,
10393 &new_coalesce.rules[i]);
10400 err = rdev_set_coalesce(rdev, &new_coalesce);
10404 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10409 cfg80211_rdev_free_coalesce(rdev);
10410 rdev->coalesce = n_coalesce;
10414 for (i = 0; i < new_coalesce.n_rules; i++) {
10415 tmp_rule = &new_coalesce.rules[i];
10416 for (j = 0; j < tmp_rule->n_patterns; j++)
10417 kfree(tmp_rule->patterns[j].mask);
10418 kfree(tmp_rule->patterns);
10420 kfree(new_coalesce.rules);
10425 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10428 struct net_device *dev = info->user_ptr[1];
10429 struct wireless_dev *wdev = dev->ieee80211_ptr;
10430 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10431 struct cfg80211_gtk_rekey_data rekey_data = {};
10434 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10437 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10438 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10439 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10440 nl80211_rekey_policy);
10444 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
10445 !tb[NL80211_REKEY_DATA_KCK])
10447 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10449 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10451 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10454 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10455 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10456 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
10459 if (!wdev->current_bss) {
10464 if (!rdev->ops->set_rekey_data) {
10469 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
10475 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10476 struct genl_info *info)
10478 struct net_device *dev = info->user_ptr[1];
10479 struct wireless_dev *wdev = dev->ieee80211_ptr;
10481 if (wdev->iftype != NL80211_IFTYPE_AP &&
10482 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10485 if (wdev->ap_unexpected_nlportid)
10488 wdev->ap_unexpected_nlportid = info->snd_portid;
10492 static int nl80211_probe_client(struct sk_buff *skb,
10493 struct genl_info *info)
10495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10496 struct net_device *dev = info->user_ptr[1];
10497 struct wireless_dev *wdev = dev->ieee80211_ptr;
10498 struct sk_buff *msg;
10504 if (wdev->iftype != NL80211_IFTYPE_AP &&
10505 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10506 return -EOPNOTSUPP;
10508 if (!info->attrs[NL80211_ATTR_MAC])
10511 if (!rdev->ops->probe_client)
10512 return -EOPNOTSUPP;
10514 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10518 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10519 NL80211_CMD_PROBE_CLIENT);
10525 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10527 err = rdev_probe_client(rdev, dev, addr, &cookie);
10531 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10533 goto nla_put_failure;
10535 genlmsg_end(msg, hdr);
10537 return genlmsg_reply(msg, info);
10546 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10549 struct cfg80211_beacon_registration *reg, *nreg;
10552 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10553 return -EOPNOTSUPP;
10555 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10559 /* First, check if already registered. */
10560 spin_lock_bh(&rdev->beacon_registrations_lock);
10561 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10562 if (reg->nlportid == info->snd_portid) {
10567 /* Add it to the list */
10568 nreg->nlportid = info->snd_portid;
10569 list_add(&nreg->list, &rdev->beacon_registrations);
10571 spin_unlock_bh(&rdev->beacon_registrations_lock);
10575 spin_unlock_bh(&rdev->beacon_registrations_lock);
10580 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10583 struct wireless_dev *wdev = info->user_ptr[1];
10586 if (!rdev->ops->start_p2p_device)
10587 return -EOPNOTSUPP;
10589 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10590 return -EOPNOTSUPP;
10592 if (wdev->p2p_started)
10595 if (rfkill_blocked(rdev->rfkill))
10598 err = rdev_start_p2p_device(rdev, wdev);
10602 wdev->p2p_started = true;
10608 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10610 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10611 struct wireless_dev *wdev = info->user_ptr[1];
10613 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10614 return -EOPNOTSUPP;
10616 if (!rdev->ops->stop_p2p_device)
10617 return -EOPNOTSUPP;
10619 cfg80211_stop_p2p_device(rdev, wdev);
10624 static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
10626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10627 struct wireless_dev *wdev = info->user_ptr[1];
10628 struct cfg80211_nan_conf conf = {};
10631 if (wdev->iftype != NL80211_IFTYPE_NAN)
10632 return -EOPNOTSUPP;
10634 if (wdev->nan_started)
10637 if (rfkill_blocked(rdev->rfkill))
10640 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
10643 if (!info->attrs[NL80211_ATTR_NAN_DUAL])
10647 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
10648 if (!conf.master_pref)
10651 conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]);
10653 err = rdev_start_nan(rdev, wdev, &conf);
10657 wdev->nan_started = true;
10663 static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
10665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10666 struct wireless_dev *wdev = info->user_ptr[1];
10668 if (wdev->iftype != NL80211_IFTYPE_NAN)
10669 return -EOPNOTSUPP;
10671 cfg80211_stop_nan(rdev, wdev);
10676 static int validate_nan_filter(struct nlattr *filter_attr)
10678 struct nlattr *attr;
10679 int len = 0, n_entries = 0, rem;
10681 nla_for_each_nested(attr, filter_attr, rem) {
10682 len += nla_len(attr);
10692 static int handle_nan_filter(struct nlattr *attr_filter,
10693 struct cfg80211_nan_func *func,
10696 struct nlattr *attr;
10697 int n_entries, rem, i;
10698 struct cfg80211_nan_func_filter *filter;
10700 n_entries = validate_nan_filter(attr_filter);
10704 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
10706 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
10711 nla_for_each_nested(attr, attr_filter, rem) {
10712 filter[i].filter = kmemdup(nla_data(attr), nla_len(attr),
10714 filter[i].len = nla_len(attr);
10718 func->num_tx_filters = n_entries;
10719 func->tx_filters = filter;
10721 func->num_rx_filters = n_entries;
10722 func->rx_filters = filter;
10728 static int nl80211_nan_add_func(struct sk_buff *skb,
10729 struct genl_info *info)
10731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10732 struct wireless_dev *wdev = info->user_ptr[1];
10733 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
10734 struct cfg80211_nan_func *func;
10735 struct sk_buff *msg = NULL;
10739 if (wdev->iftype != NL80211_IFTYPE_NAN)
10740 return -EOPNOTSUPP;
10742 if (!wdev->nan_started)
10745 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
10748 if (wdev->owner_nlportid &&
10749 wdev->owner_nlportid != info->snd_portid)
10752 err = nla_parse(tb, NL80211_NAN_FUNC_ATTR_MAX,
10753 nla_data(info->attrs[NL80211_ATTR_NAN_FUNC]),
10754 nla_len(info->attrs[NL80211_ATTR_NAN_FUNC]),
10755 nl80211_nan_func_policy);
10759 func = kzalloc(sizeof(*func), GFP_KERNEL);
10763 func->cookie = wdev->wiphy->cookie_counter++;
10765 if (!tb[NL80211_NAN_FUNC_TYPE] ||
10766 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
10772 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
10774 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
10779 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
10780 sizeof(func->service_id));
10782 func->close_range =
10783 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
10785 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
10786 func->serv_spec_info_len =
10787 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
10788 func->serv_spec_info =
10789 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
10790 func->serv_spec_info_len,
10792 if (!func->serv_spec_info) {
10798 if (tb[NL80211_NAN_FUNC_TTL])
10799 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
10801 switch (func->type) {
10802 case NL80211_NAN_FUNC_PUBLISH:
10803 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
10808 func->publish_type =
10809 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
10810 func->publish_bcast =
10811 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
10813 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
10814 func->publish_bcast) {
10819 case NL80211_NAN_FUNC_SUBSCRIBE:
10820 func->subscribe_active =
10821 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
10823 case NL80211_NAN_FUNC_FOLLOW_UP:
10824 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
10825 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] ||
10826 !tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]) {
10831 func->followup_id =
10832 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
10833 func->followup_reqid =
10834 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
10835 memcpy(func->followup_dest.addr,
10836 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
10837 sizeof(func->followup_dest.addr));
10848 if (tb[NL80211_NAN_FUNC_SRF]) {
10849 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
10851 err = nla_parse(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
10852 nla_data(tb[NL80211_NAN_FUNC_SRF]),
10853 nla_len(tb[NL80211_NAN_FUNC_SRF]), NULL);
10857 func->srf_include =
10858 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
10860 if (srf_tb[NL80211_NAN_SRF_BF]) {
10861 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
10862 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
10868 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
10870 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
10871 func->srf_bf_len, GFP_KERNEL);
10872 if (!func->srf_bf) {
10878 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
10880 struct nlattr *attr, *mac_attr =
10881 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
10882 int n_entries, rem, i = 0;
10889 n_entries = validate_acl_mac_addrs(mac_attr);
10890 if (n_entries <= 0) {
10895 func->srf_num_macs = n_entries;
10897 kzalloc(sizeof(*func->srf_macs) * n_entries,
10899 if (!func->srf_macs) {
10904 nla_for_each_nested(attr, mac_attr, rem)
10905 memcpy(func->srf_macs[i++].addr, nla_data(attr),
10906 sizeof(*func->srf_macs));
10910 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
10911 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
10917 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
10918 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
10924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10930 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10931 NL80211_CMD_ADD_NAN_FUNCTION);
10932 /* This can't really happen - we just allocated 4KB */
10933 if (WARN_ON(!hdr)) {
10938 err = rdev_add_nan_func(rdev, wdev, func);
10941 cfg80211_free_nan_func(func);
10946 /* propagate the instance id and cookie to userspace */
10947 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
10949 goto nla_put_failure;
10951 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
10953 goto nla_put_failure;
10955 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
10956 func->instance_id))
10957 goto nla_put_failure;
10959 nla_nest_end(msg, func_attr);
10961 genlmsg_end(msg, hdr);
10962 return genlmsg_reply(msg, info);
10969 static int nl80211_nan_del_func(struct sk_buff *skb,
10970 struct genl_info *info)
10972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10973 struct wireless_dev *wdev = info->user_ptr[1];
10976 if (wdev->iftype != NL80211_IFTYPE_NAN)
10977 return -EOPNOTSUPP;
10979 if (!wdev->nan_started)
10982 if (!info->attrs[NL80211_ATTR_COOKIE])
10985 if (wdev->owner_nlportid &&
10986 wdev->owner_nlportid != info->snd_portid)
10989 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
10991 rdev_del_nan_func(rdev, wdev, cookie);
10996 static int nl80211_nan_change_config(struct sk_buff *skb,
10997 struct genl_info *info)
10999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11000 struct wireless_dev *wdev = info->user_ptr[1];
11001 struct cfg80211_nan_conf conf = {};
11004 if (wdev->iftype != NL80211_IFTYPE_NAN)
11005 return -EOPNOTSUPP;
11007 if (!wdev->nan_started)
11010 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11012 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11013 if (conf.master_pref <= 1 || conf.master_pref == 255)
11016 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11019 if (info->attrs[NL80211_ATTR_NAN_DUAL]) {
11020 conf.dual = nla_get_u8(info->attrs[NL80211_ATTR_NAN_DUAL]);
11021 changed |= CFG80211_NAN_CONF_CHANGED_DUAL;
11027 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11030 void cfg80211_nan_match(struct wireless_dev *wdev,
11031 struct cfg80211_nan_match_params *match, gfp_t gfp)
11033 struct wiphy *wiphy = wdev->wiphy;
11034 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11035 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11036 struct sk_buff *msg;
11039 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11046 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11052 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11053 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11054 wdev->netdev->ifindex)) ||
11055 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11057 goto nla_put_failure;
11059 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11060 NL80211_ATTR_PAD) ||
11061 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11062 goto nla_put_failure;
11064 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11066 goto nla_put_failure;
11068 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11069 if (!local_func_attr)
11070 goto nla_put_failure;
11072 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11073 goto nla_put_failure;
11075 nla_nest_end(msg, local_func_attr);
11077 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11078 if (!peer_func_attr)
11079 goto nla_put_failure;
11081 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11082 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11083 goto nla_put_failure;
11085 if (match->info && match->info_len &&
11086 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11088 goto nla_put_failure;
11090 nla_nest_end(msg, peer_func_attr);
11091 nla_nest_end(msg, match_attr);
11092 genlmsg_end(msg, hdr);
11094 if (!wdev->owner_nlportid)
11095 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11096 msg, 0, NL80211_MCGRP_NAN, gfp);
11098 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11099 wdev->owner_nlportid);
11106 EXPORT_SYMBOL(cfg80211_nan_match);
11108 void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11110 enum nl80211_nan_func_term_reason reason,
11111 u64 cookie, gfp_t gfp)
11113 struct wiphy *wiphy = wdev->wiphy;
11114 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11115 struct sk_buff *msg;
11116 struct nlattr *func_attr;
11119 if (WARN_ON(!inst_id))
11122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11126 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11132 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11133 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11134 wdev->netdev->ifindex)) ||
11135 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11137 goto nla_put_failure;
11139 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11141 goto nla_put_failure;
11143 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11145 goto nla_put_failure;
11147 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11148 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11149 goto nla_put_failure;
11151 nla_nest_end(msg, func_attr);
11152 genlmsg_end(msg, hdr);
11154 if (!wdev->owner_nlportid)
11155 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11156 msg, 0, NL80211_MCGRP_NAN, gfp);
11158 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11159 wdev->owner_nlportid);
11166 EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11168 static int nl80211_get_protocol_features(struct sk_buff *skb,
11169 struct genl_info *info)
11172 struct sk_buff *msg;
11174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11178 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11179 NL80211_CMD_GET_PROTOCOL_FEATURES);
11181 goto nla_put_failure;
11183 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11184 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11185 goto nla_put_failure;
11187 genlmsg_end(msg, hdr);
11188 return genlmsg_reply(msg, info);
11195 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11198 struct cfg80211_update_ft_ies_params ft_params;
11199 struct net_device *dev = info->user_ptr[1];
11201 if (!rdev->ops->update_ft_ies)
11202 return -EOPNOTSUPP;
11204 if (!info->attrs[NL80211_ATTR_MDID] ||
11205 !info->attrs[NL80211_ATTR_IE] ||
11206 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11209 memset(&ft_params, 0, sizeof(ft_params));
11210 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11211 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11212 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11214 return rdev_update_ft_ies(rdev, dev, &ft_params);
11217 static int nl80211_crit_protocol_start(struct sk_buff *skb,
11218 struct genl_info *info)
11220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11221 struct wireless_dev *wdev = info->user_ptr[1];
11222 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11226 if (!rdev->ops->crit_proto_start)
11227 return -EOPNOTSUPP;
11229 if (WARN_ON(!rdev->ops->crit_proto_stop))
11232 if (rdev->crit_proto_nlportid)
11235 /* determine protocol if provided */
11236 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11237 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11239 if (proto >= NUM_NL80211_CRIT_PROTO)
11242 /* timeout must be provided */
11243 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11247 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11249 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11252 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11254 rdev->crit_proto_nlportid = info->snd_portid;
11259 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11260 struct genl_info *info)
11262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11263 struct wireless_dev *wdev = info->user_ptr[1];
11265 if (!rdev->ops->crit_proto_stop)
11266 return -EOPNOTSUPP;
11268 if (rdev->crit_proto_nlportid) {
11269 rdev->crit_proto_nlportid = 0;
11270 rdev_crit_proto_stop(rdev, wdev);
11275 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11277 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11278 struct wireless_dev *wdev =
11279 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11283 if (!rdev->wiphy.vendor_commands)
11284 return -EOPNOTSUPP;
11286 if (IS_ERR(wdev)) {
11287 err = PTR_ERR(wdev);
11288 if (err != -EINVAL)
11291 } else if (wdev->wiphy != &rdev->wiphy) {
11295 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11296 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11299 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11300 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11301 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11302 const struct wiphy_vendor_command *vcmd;
11306 vcmd = &rdev->wiphy.vendor_commands[i];
11308 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11311 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11312 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11315 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11319 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
11320 if (wdev->netdev &&
11321 !netif_running(wdev->netdev))
11323 if (!wdev->netdev && !wdev->p2p_started)
11331 return -EOPNOTSUPP;
11333 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11334 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11335 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11338 rdev->cur_cmd_info = info;
11339 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11341 rdev->cur_cmd_info = NULL;
11345 return -EOPNOTSUPP;
11348 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11349 struct netlink_callback *cb,
11350 struct cfg80211_registered_device **rdev,
11351 struct wireless_dev **wdev)
11358 unsigned int data_len = 0;
11361 /* subtract the 1 again here */
11362 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11363 struct wireless_dev *tmp;
11367 *rdev = wiphy_to_rdev(wiphy);
11371 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
11372 if (tmp->identifier == cb->args[1] - 1) {
11379 /* keep rtnl locked in successful case */
11383 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
11384 nl80211_fam.attrbuf, nl80211_fam.maxattr,
11389 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
11390 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
11393 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
11394 nl80211_fam.attrbuf);
11398 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
11399 nl80211_fam.attrbuf);
11401 return PTR_ERR(*rdev);
11403 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
11404 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
11406 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11407 const struct wiphy_vendor_command *vcmd;
11409 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11411 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11415 return -EOPNOTSUPP;
11422 return -EOPNOTSUPP;
11424 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11425 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
11426 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
11429 /* 0 is the first index - add 1 to parse only once */
11430 cb->args[0] = (*rdev)->wiphy_idx + 1;
11431 /* add 1 to know if it was NULL */
11432 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11433 cb->args[2] = vcmd_idx;
11434 cb->args[3] = (unsigned long)data;
11435 cb->args[4] = data_len;
11437 /* keep rtnl locked in successful case */
11441 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11442 struct netlink_callback *cb)
11444 struct cfg80211_registered_device *rdev;
11445 struct wireless_dev *wdev;
11446 unsigned int vcmd_idx;
11447 const struct wiphy_vendor_command *vcmd;
11451 struct nlattr *vendor_data;
11454 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11458 vcmd_idx = cb->args[2];
11459 data = (void *)cb->args[3];
11460 data_len = cb->args[4];
11461 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11463 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11464 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11469 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11475 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
11476 if (wdev->netdev &&
11477 !netif_running(wdev->netdev)) {
11481 if (!wdev->netdev && !wdev->p2p_started) {
11489 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11490 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11491 NL80211_CMD_VENDOR);
11495 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11496 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11498 NL80211_ATTR_PAD))) {
11499 genlmsg_cancel(skb, hdr);
11503 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11504 if (!vendor_data) {
11505 genlmsg_cancel(skb, hdr);
11509 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11510 (unsigned long *)&cb->args[5]);
11511 nla_nest_end(skb, vendor_data);
11513 if (err == -ENOBUFS || err == -ENOENT) {
11514 genlmsg_cancel(skb, hdr);
11517 genlmsg_cancel(skb, hdr);
11521 genlmsg_end(skb, hdr);
11530 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
11531 enum nl80211_commands cmd,
11532 enum nl80211_attrs attr,
11535 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11537 if (WARN_ON(!rdev->cur_cmd_info))
11540 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
11541 rdev->cur_cmd_info->snd_portid,
11542 rdev->cur_cmd_info->snd_seq,
11543 cmd, attr, NULL, GFP_KERNEL);
11545 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
11547 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
11549 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
11550 void *hdr = ((void **)skb->cb)[1];
11551 struct nlattr *data = ((void **)skb->cb)[2];
11553 /* clear CB data for netlink core to own from now on */
11554 memset(skb->cb, 0, sizeof(skb->cb));
11556 if (WARN_ON(!rdev->cur_cmd_info)) {
11561 nla_nest_end(skb, data);
11562 genlmsg_end(skb, hdr);
11563 return genlmsg_reply(skb, rdev->cur_cmd_info);
11565 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
11567 static int nl80211_set_qos_map(struct sk_buff *skb,
11568 struct genl_info *info)
11570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11571 struct cfg80211_qos_map *qos_map = NULL;
11572 struct net_device *dev = info->user_ptr[1];
11573 u8 *pos, len, num_des, des_len, des;
11576 if (!rdev->ops->set_qos_map)
11577 return -EOPNOTSUPP;
11579 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
11580 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
11581 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
11583 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
11584 len > IEEE80211_QOS_MAP_LEN_MAX)
11587 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
11591 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
11593 des_len = num_des *
11594 sizeof(struct cfg80211_dscp_exception);
11595 memcpy(qos_map->dscp_exception, pos, des_len);
11596 qos_map->num_des = num_des;
11597 for (des = 0; des < num_des; des++) {
11598 if (qos_map->dscp_exception[des].up > 7) {
11605 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
11608 wdev_lock(dev->ieee80211_ptr);
11609 ret = nl80211_key_allowed(dev->ieee80211_ptr);
11611 ret = rdev_set_qos_map(rdev, dev, qos_map);
11612 wdev_unlock(dev->ieee80211_ptr);
11618 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
11620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11621 struct net_device *dev = info->user_ptr[1];
11622 struct wireless_dev *wdev = dev->ieee80211_ptr;
11625 u16 admitted_time = 0;
11628 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
11629 return -EOPNOTSUPP;
11631 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
11632 !info->attrs[NL80211_ATTR_USER_PRIO])
11635 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11636 if (tsid >= IEEE80211_NUM_TIDS)
11639 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
11640 if (up >= IEEE80211_NUM_UPS)
11643 /* WMM uses TIDs 0-7 even for TSPEC */
11644 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
11645 /* TODO: handle 802.11 TSPEC/admission control
11646 * need more attributes for that (e.g. BA session requirement);
11647 * change the WMM adminssion test above to allow both then
11652 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11654 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
11656 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
11657 if (!admitted_time)
11662 switch (wdev->iftype) {
11663 case NL80211_IFTYPE_STATION:
11664 case NL80211_IFTYPE_P2P_CLIENT:
11665 if (wdev->current_bss)
11674 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
11681 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
11683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11684 struct net_device *dev = info->user_ptr[1];
11685 struct wireless_dev *wdev = dev->ieee80211_ptr;
11690 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
11693 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
11694 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
11697 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
11703 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
11704 struct genl_info *info)
11706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11707 struct net_device *dev = info->user_ptr[1];
11708 struct wireless_dev *wdev = dev->ieee80211_ptr;
11709 struct cfg80211_chan_def chandef = {};
11714 if (!rdev->ops->tdls_channel_switch ||
11715 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11716 return -EOPNOTSUPP;
11718 switch (dev->ieee80211_ptr->iftype) {
11719 case NL80211_IFTYPE_STATION:
11720 case NL80211_IFTYPE_P2P_CLIENT:
11723 return -EOPNOTSUPP;
11726 if (!info->attrs[NL80211_ATTR_MAC] ||
11727 !info->attrs[NL80211_ATTR_OPER_CLASS])
11730 err = nl80211_parse_chandef(rdev, info, &chandef);
11735 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
11736 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
11737 * specification is not defined for them.
11739 if (chandef.chan->band == NL80211_BAND_2GHZ &&
11740 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
11741 chandef.width != NL80211_CHAN_WIDTH_20)
11744 /* we will be active on the TDLS link */
11745 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11749 /* don't allow switching to DFS channels */
11750 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11753 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11754 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11757 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11763 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11764 struct genl_info *info)
11766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11767 struct net_device *dev = info->user_ptr[1];
11768 struct wireless_dev *wdev = dev->ieee80211_ptr;
11771 if (!rdev->ops->tdls_channel_switch ||
11772 !rdev->ops->tdls_cancel_channel_switch ||
11773 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11774 return -EOPNOTSUPP;
11776 switch (dev->ieee80211_ptr->iftype) {
11777 case NL80211_IFTYPE_STATION:
11778 case NL80211_IFTYPE_P2P_CLIENT:
11781 return -EOPNOTSUPP;
11784 if (!info->attrs[NL80211_ATTR_MAC])
11787 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11790 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11796 #define NL80211_FLAG_NEED_WIPHY 0x01
11797 #define NL80211_FLAG_NEED_NETDEV 0x02
11798 #define NL80211_FLAG_NEED_RTNL 0x04
11799 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11800 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11801 NL80211_FLAG_CHECK_NETDEV_UP)
11802 #define NL80211_FLAG_NEED_WDEV 0x10
11803 /* If a netdev is associated, it must be UP, P2P must be started */
11804 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11805 NL80211_FLAG_CHECK_NETDEV_UP)
11806 #define NL80211_FLAG_CLEAR_SKB 0x20
11808 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
11809 struct genl_info *info)
11811 struct cfg80211_registered_device *rdev;
11812 struct wireless_dev *wdev;
11813 struct net_device *dev;
11814 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11819 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
11820 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
11821 if (IS_ERR(rdev)) {
11824 return PTR_ERR(rdev);
11826 info->user_ptr[0] = rdev;
11827 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11828 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11831 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11833 if (IS_ERR(wdev)) {
11836 return PTR_ERR(wdev);
11839 dev = wdev->netdev;
11840 rdev = wiphy_to_rdev(wdev->wiphy);
11842 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11849 info->user_ptr[1] = dev;
11851 info->user_ptr[1] = wdev;
11855 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11856 !netif_running(dev)) {
11863 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
11864 if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE &&
11865 !wdev->p2p_started) {
11870 if (wdev->iftype == NL80211_IFTYPE_NAN &&
11871 !wdev->nan_started) {
11878 info->user_ptr[0] = rdev;
11884 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
11885 struct genl_info *info)
11887 if (info->user_ptr[1]) {
11888 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11889 struct wireless_dev *wdev = info->user_ptr[1];
11892 dev_put(wdev->netdev);
11894 dev_put(info->user_ptr[1]);
11898 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11901 /* If needed, clear the netlink message payload from the SKB
11902 * as it might contain key data that shouldn't stick around on
11903 * the heap after the SKB is freed. The netlink message header
11904 * is still needed for further processing, so leave it intact.
11906 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11907 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11909 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11913 static const struct genl_ops nl80211_ops[] = {
11915 .cmd = NL80211_CMD_GET_WIPHY,
11916 .doit = nl80211_get_wiphy,
11917 .dumpit = nl80211_dump_wiphy,
11918 .done = nl80211_dump_wiphy_done,
11919 .policy = nl80211_policy,
11920 /* can be retrieved by unprivileged users */
11921 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11922 NL80211_FLAG_NEED_RTNL,
11925 .cmd = NL80211_CMD_SET_WIPHY,
11926 .doit = nl80211_set_wiphy,
11927 .policy = nl80211_policy,
11928 .flags = GENL_UNS_ADMIN_PERM,
11929 .internal_flags = NL80211_FLAG_NEED_RTNL,
11932 .cmd = NL80211_CMD_GET_INTERFACE,
11933 .doit = nl80211_get_interface,
11934 .dumpit = nl80211_dump_interface,
11935 .policy = nl80211_policy,
11936 /* can be retrieved by unprivileged users */
11937 .internal_flags = NL80211_FLAG_NEED_WDEV |
11938 NL80211_FLAG_NEED_RTNL,
11941 .cmd = NL80211_CMD_SET_INTERFACE,
11942 .doit = nl80211_set_interface,
11943 .policy = nl80211_policy,
11944 .flags = GENL_UNS_ADMIN_PERM,
11945 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11946 NL80211_FLAG_NEED_RTNL,
11949 .cmd = NL80211_CMD_NEW_INTERFACE,
11950 .doit = nl80211_new_interface,
11951 .policy = nl80211_policy,
11952 .flags = GENL_UNS_ADMIN_PERM,
11953 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11954 NL80211_FLAG_NEED_RTNL,
11957 .cmd = NL80211_CMD_DEL_INTERFACE,
11958 .doit = nl80211_del_interface,
11959 .policy = nl80211_policy,
11960 .flags = GENL_UNS_ADMIN_PERM,
11961 .internal_flags = NL80211_FLAG_NEED_WDEV |
11962 NL80211_FLAG_NEED_RTNL,
11965 .cmd = NL80211_CMD_GET_KEY,
11966 .doit = nl80211_get_key,
11967 .policy = nl80211_policy,
11968 .flags = GENL_UNS_ADMIN_PERM,
11969 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11970 NL80211_FLAG_NEED_RTNL,
11973 .cmd = NL80211_CMD_SET_KEY,
11974 .doit = nl80211_set_key,
11975 .policy = nl80211_policy,
11976 .flags = GENL_UNS_ADMIN_PERM,
11977 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11978 NL80211_FLAG_NEED_RTNL |
11979 NL80211_FLAG_CLEAR_SKB,
11982 .cmd = NL80211_CMD_NEW_KEY,
11983 .doit = nl80211_new_key,
11984 .policy = nl80211_policy,
11985 .flags = GENL_UNS_ADMIN_PERM,
11986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11987 NL80211_FLAG_NEED_RTNL |
11988 NL80211_FLAG_CLEAR_SKB,
11991 .cmd = NL80211_CMD_DEL_KEY,
11992 .doit = nl80211_del_key,
11993 .policy = nl80211_policy,
11994 .flags = GENL_UNS_ADMIN_PERM,
11995 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11996 NL80211_FLAG_NEED_RTNL,
11999 .cmd = NL80211_CMD_SET_BEACON,
12000 .policy = nl80211_policy,
12001 .flags = GENL_UNS_ADMIN_PERM,
12002 .doit = nl80211_set_beacon,
12003 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12004 NL80211_FLAG_NEED_RTNL,
12007 .cmd = NL80211_CMD_START_AP,
12008 .policy = nl80211_policy,
12009 .flags = GENL_UNS_ADMIN_PERM,
12010 .doit = nl80211_start_ap,
12011 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12012 NL80211_FLAG_NEED_RTNL,
12015 .cmd = NL80211_CMD_STOP_AP,
12016 .policy = nl80211_policy,
12017 .flags = GENL_UNS_ADMIN_PERM,
12018 .doit = nl80211_stop_ap,
12019 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12020 NL80211_FLAG_NEED_RTNL,
12023 .cmd = NL80211_CMD_GET_STATION,
12024 .doit = nl80211_get_station,
12025 .dumpit = nl80211_dump_station,
12026 .policy = nl80211_policy,
12027 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12028 NL80211_FLAG_NEED_RTNL,
12031 .cmd = NL80211_CMD_SET_STATION,
12032 .doit = nl80211_set_station,
12033 .policy = nl80211_policy,
12034 .flags = GENL_UNS_ADMIN_PERM,
12035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12036 NL80211_FLAG_NEED_RTNL,
12039 .cmd = NL80211_CMD_NEW_STATION,
12040 .doit = nl80211_new_station,
12041 .policy = nl80211_policy,
12042 .flags = GENL_UNS_ADMIN_PERM,
12043 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12044 NL80211_FLAG_NEED_RTNL,
12047 .cmd = NL80211_CMD_DEL_STATION,
12048 .doit = nl80211_del_station,
12049 .policy = nl80211_policy,
12050 .flags = GENL_UNS_ADMIN_PERM,
12051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12052 NL80211_FLAG_NEED_RTNL,
12055 .cmd = NL80211_CMD_GET_MPATH,
12056 .doit = nl80211_get_mpath,
12057 .dumpit = nl80211_dump_mpath,
12058 .policy = nl80211_policy,
12059 .flags = GENL_UNS_ADMIN_PERM,
12060 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12061 NL80211_FLAG_NEED_RTNL,
12064 .cmd = NL80211_CMD_GET_MPP,
12065 .doit = nl80211_get_mpp,
12066 .dumpit = nl80211_dump_mpp,
12067 .policy = nl80211_policy,
12068 .flags = GENL_UNS_ADMIN_PERM,
12069 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12070 NL80211_FLAG_NEED_RTNL,
12073 .cmd = NL80211_CMD_SET_MPATH,
12074 .doit = nl80211_set_mpath,
12075 .policy = nl80211_policy,
12076 .flags = GENL_UNS_ADMIN_PERM,
12077 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12078 NL80211_FLAG_NEED_RTNL,
12081 .cmd = NL80211_CMD_NEW_MPATH,
12082 .doit = nl80211_new_mpath,
12083 .policy = nl80211_policy,
12084 .flags = GENL_UNS_ADMIN_PERM,
12085 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12086 NL80211_FLAG_NEED_RTNL,
12089 .cmd = NL80211_CMD_DEL_MPATH,
12090 .doit = nl80211_del_mpath,
12091 .policy = nl80211_policy,
12092 .flags = GENL_UNS_ADMIN_PERM,
12093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12094 NL80211_FLAG_NEED_RTNL,
12097 .cmd = NL80211_CMD_SET_BSS,
12098 .doit = nl80211_set_bss,
12099 .policy = nl80211_policy,
12100 .flags = GENL_UNS_ADMIN_PERM,
12101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12102 NL80211_FLAG_NEED_RTNL,
12105 .cmd = NL80211_CMD_GET_REG,
12106 .doit = nl80211_get_reg_do,
12107 .dumpit = nl80211_get_reg_dump,
12108 .policy = nl80211_policy,
12109 .internal_flags = NL80211_FLAG_NEED_RTNL,
12110 /* can be retrieved by unprivileged users */
12112 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
12114 .cmd = NL80211_CMD_SET_REG,
12115 .doit = nl80211_set_reg,
12116 .policy = nl80211_policy,
12117 .flags = GENL_ADMIN_PERM,
12118 .internal_flags = NL80211_FLAG_NEED_RTNL,
12122 .cmd = NL80211_CMD_REQ_SET_REG,
12123 .doit = nl80211_req_set_reg,
12124 .policy = nl80211_policy,
12125 .flags = GENL_ADMIN_PERM,
12128 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12129 .doit = nl80211_get_mesh_config,
12130 .policy = nl80211_policy,
12131 /* can be retrieved by unprivileged users */
12132 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12133 NL80211_FLAG_NEED_RTNL,
12136 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12137 .doit = nl80211_update_mesh_config,
12138 .policy = nl80211_policy,
12139 .flags = GENL_UNS_ADMIN_PERM,
12140 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12141 NL80211_FLAG_NEED_RTNL,
12144 .cmd = NL80211_CMD_TRIGGER_SCAN,
12145 .doit = nl80211_trigger_scan,
12146 .policy = nl80211_policy,
12147 .flags = GENL_UNS_ADMIN_PERM,
12148 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12149 NL80211_FLAG_NEED_RTNL,
12152 .cmd = NL80211_CMD_ABORT_SCAN,
12153 .doit = nl80211_abort_scan,
12154 .policy = nl80211_policy,
12155 .flags = GENL_UNS_ADMIN_PERM,
12156 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12157 NL80211_FLAG_NEED_RTNL,
12160 .cmd = NL80211_CMD_GET_SCAN,
12161 .policy = nl80211_policy,
12162 .dumpit = nl80211_dump_scan,
12165 .cmd = NL80211_CMD_START_SCHED_SCAN,
12166 .doit = nl80211_start_sched_scan,
12167 .policy = nl80211_policy,
12168 .flags = GENL_UNS_ADMIN_PERM,
12169 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12170 NL80211_FLAG_NEED_RTNL,
12173 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12174 .doit = nl80211_stop_sched_scan,
12175 .policy = nl80211_policy,
12176 .flags = GENL_UNS_ADMIN_PERM,
12177 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12178 NL80211_FLAG_NEED_RTNL,
12181 .cmd = NL80211_CMD_AUTHENTICATE,
12182 .doit = nl80211_authenticate,
12183 .policy = nl80211_policy,
12184 .flags = GENL_UNS_ADMIN_PERM,
12185 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12186 NL80211_FLAG_NEED_RTNL |
12187 NL80211_FLAG_CLEAR_SKB,
12190 .cmd = NL80211_CMD_ASSOCIATE,
12191 .doit = nl80211_associate,
12192 .policy = nl80211_policy,
12193 .flags = GENL_UNS_ADMIN_PERM,
12194 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12195 NL80211_FLAG_NEED_RTNL,
12198 .cmd = NL80211_CMD_DEAUTHENTICATE,
12199 .doit = nl80211_deauthenticate,
12200 .policy = nl80211_policy,
12201 .flags = GENL_UNS_ADMIN_PERM,
12202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12203 NL80211_FLAG_NEED_RTNL,
12206 .cmd = NL80211_CMD_DISASSOCIATE,
12207 .doit = nl80211_disassociate,
12208 .policy = nl80211_policy,
12209 .flags = GENL_UNS_ADMIN_PERM,
12210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12211 NL80211_FLAG_NEED_RTNL,
12214 .cmd = NL80211_CMD_JOIN_IBSS,
12215 .doit = nl80211_join_ibss,
12216 .policy = nl80211_policy,
12217 .flags = GENL_UNS_ADMIN_PERM,
12218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12219 NL80211_FLAG_NEED_RTNL,
12222 .cmd = NL80211_CMD_LEAVE_IBSS,
12223 .doit = nl80211_leave_ibss,
12224 .policy = nl80211_policy,
12225 .flags = GENL_UNS_ADMIN_PERM,
12226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12227 NL80211_FLAG_NEED_RTNL,
12229 #ifdef CONFIG_NL80211_TESTMODE
12231 .cmd = NL80211_CMD_TESTMODE,
12232 .doit = nl80211_testmode_do,
12233 .dumpit = nl80211_testmode_dump,
12234 .policy = nl80211_policy,
12235 .flags = GENL_UNS_ADMIN_PERM,
12236 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12237 NL80211_FLAG_NEED_RTNL,
12241 .cmd = NL80211_CMD_CONNECT,
12242 .doit = nl80211_connect,
12243 .policy = nl80211_policy,
12244 .flags = GENL_UNS_ADMIN_PERM,
12245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12246 NL80211_FLAG_NEED_RTNL,
12249 .cmd = NL80211_CMD_DISCONNECT,
12250 .doit = nl80211_disconnect,
12251 .policy = nl80211_policy,
12252 .flags = GENL_UNS_ADMIN_PERM,
12253 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12254 NL80211_FLAG_NEED_RTNL,
12257 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12258 .doit = nl80211_wiphy_netns,
12259 .policy = nl80211_policy,
12260 .flags = GENL_UNS_ADMIN_PERM,
12261 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12262 NL80211_FLAG_NEED_RTNL,
12265 .cmd = NL80211_CMD_GET_SURVEY,
12266 .policy = nl80211_policy,
12267 .dumpit = nl80211_dump_survey,
12270 .cmd = NL80211_CMD_SET_PMKSA,
12271 .doit = nl80211_setdel_pmksa,
12272 .policy = nl80211_policy,
12273 .flags = GENL_UNS_ADMIN_PERM,
12274 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12275 NL80211_FLAG_NEED_RTNL,
12278 .cmd = NL80211_CMD_DEL_PMKSA,
12279 .doit = nl80211_setdel_pmksa,
12280 .policy = nl80211_policy,
12281 .flags = GENL_UNS_ADMIN_PERM,
12282 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12283 NL80211_FLAG_NEED_RTNL,
12286 .cmd = NL80211_CMD_FLUSH_PMKSA,
12287 .doit = nl80211_flush_pmksa,
12288 .policy = nl80211_policy,
12289 .flags = GENL_UNS_ADMIN_PERM,
12290 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12291 NL80211_FLAG_NEED_RTNL,
12294 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12295 .doit = nl80211_remain_on_channel,
12296 .policy = nl80211_policy,
12297 .flags = GENL_UNS_ADMIN_PERM,
12298 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12299 NL80211_FLAG_NEED_RTNL,
12302 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12303 .doit = nl80211_cancel_remain_on_channel,
12304 .policy = nl80211_policy,
12305 .flags = GENL_UNS_ADMIN_PERM,
12306 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12307 NL80211_FLAG_NEED_RTNL,
12310 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12311 .doit = nl80211_set_tx_bitrate_mask,
12312 .policy = nl80211_policy,
12313 .flags = GENL_UNS_ADMIN_PERM,
12314 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12315 NL80211_FLAG_NEED_RTNL,
12318 .cmd = NL80211_CMD_REGISTER_FRAME,
12319 .doit = nl80211_register_mgmt,
12320 .policy = nl80211_policy,
12321 .flags = GENL_UNS_ADMIN_PERM,
12322 .internal_flags = NL80211_FLAG_NEED_WDEV |
12323 NL80211_FLAG_NEED_RTNL,
12326 .cmd = NL80211_CMD_FRAME,
12327 .doit = nl80211_tx_mgmt,
12328 .policy = nl80211_policy,
12329 .flags = GENL_UNS_ADMIN_PERM,
12330 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12331 NL80211_FLAG_NEED_RTNL,
12334 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12335 .doit = nl80211_tx_mgmt_cancel_wait,
12336 .policy = nl80211_policy,
12337 .flags = GENL_UNS_ADMIN_PERM,
12338 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12339 NL80211_FLAG_NEED_RTNL,
12342 .cmd = NL80211_CMD_SET_POWER_SAVE,
12343 .doit = nl80211_set_power_save,
12344 .policy = nl80211_policy,
12345 .flags = GENL_UNS_ADMIN_PERM,
12346 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12347 NL80211_FLAG_NEED_RTNL,
12350 .cmd = NL80211_CMD_GET_POWER_SAVE,
12351 .doit = nl80211_get_power_save,
12352 .policy = nl80211_policy,
12353 /* can be retrieved by unprivileged users */
12354 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12355 NL80211_FLAG_NEED_RTNL,
12358 .cmd = NL80211_CMD_SET_CQM,
12359 .doit = nl80211_set_cqm,
12360 .policy = nl80211_policy,
12361 .flags = GENL_UNS_ADMIN_PERM,
12362 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12363 NL80211_FLAG_NEED_RTNL,
12366 .cmd = NL80211_CMD_SET_CHANNEL,
12367 .doit = nl80211_set_channel,
12368 .policy = nl80211_policy,
12369 .flags = GENL_UNS_ADMIN_PERM,
12370 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12371 NL80211_FLAG_NEED_RTNL,
12374 .cmd = NL80211_CMD_SET_WDS_PEER,
12375 .doit = nl80211_set_wds_peer,
12376 .policy = nl80211_policy,
12377 .flags = GENL_UNS_ADMIN_PERM,
12378 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12379 NL80211_FLAG_NEED_RTNL,
12382 .cmd = NL80211_CMD_JOIN_MESH,
12383 .doit = nl80211_join_mesh,
12384 .policy = nl80211_policy,
12385 .flags = GENL_UNS_ADMIN_PERM,
12386 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12387 NL80211_FLAG_NEED_RTNL,
12390 .cmd = NL80211_CMD_LEAVE_MESH,
12391 .doit = nl80211_leave_mesh,
12392 .policy = nl80211_policy,
12393 .flags = GENL_UNS_ADMIN_PERM,
12394 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12395 NL80211_FLAG_NEED_RTNL,
12398 .cmd = NL80211_CMD_JOIN_OCB,
12399 .doit = nl80211_join_ocb,
12400 .policy = nl80211_policy,
12401 .flags = GENL_UNS_ADMIN_PERM,
12402 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12403 NL80211_FLAG_NEED_RTNL,
12406 .cmd = NL80211_CMD_LEAVE_OCB,
12407 .doit = nl80211_leave_ocb,
12408 .policy = nl80211_policy,
12409 .flags = GENL_UNS_ADMIN_PERM,
12410 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12411 NL80211_FLAG_NEED_RTNL,
12415 .cmd = NL80211_CMD_GET_WOWLAN,
12416 .doit = nl80211_get_wowlan,
12417 .policy = nl80211_policy,
12418 /* can be retrieved by unprivileged users */
12419 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12420 NL80211_FLAG_NEED_RTNL,
12423 .cmd = NL80211_CMD_SET_WOWLAN,
12424 .doit = nl80211_set_wowlan,
12425 .policy = nl80211_policy,
12426 .flags = GENL_UNS_ADMIN_PERM,
12427 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12428 NL80211_FLAG_NEED_RTNL,
12432 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
12433 .doit = nl80211_set_rekey_data,
12434 .policy = nl80211_policy,
12435 .flags = GENL_UNS_ADMIN_PERM,
12436 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12437 NL80211_FLAG_NEED_RTNL |
12438 NL80211_FLAG_CLEAR_SKB,
12441 .cmd = NL80211_CMD_TDLS_MGMT,
12442 .doit = nl80211_tdls_mgmt,
12443 .policy = nl80211_policy,
12444 .flags = GENL_UNS_ADMIN_PERM,
12445 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12446 NL80211_FLAG_NEED_RTNL,
12449 .cmd = NL80211_CMD_TDLS_OPER,
12450 .doit = nl80211_tdls_oper,
12451 .policy = nl80211_policy,
12452 .flags = GENL_UNS_ADMIN_PERM,
12453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12454 NL80211_FLAG_NEED_RTNL,
12457 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
12458 .doit = nl80211_register_unexpected_frame,
12459 .policy = nl80211_policy,
12460 .flags = GENL_UNS_ADMIN_PERM,
12461 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12462 NL80211_FLAG_NEED_RTNL,
12465 .cmd = NL80211_CMD_PROBE_CLIENT,
12466 .doit = nl80211_probe_client,
12467 .policy = nl80211_policy,
12468 .flags = GENL_UNS_ADMIN_PERM,
12469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12470 NL80211_FLAG_NEED_RTNL,
12473 .cmd = NL80211_CMD_REGISTER_BEACONS,
12474 .doit = nl80211_register_beacons,
12475 .policy = nl80211_policy,
12476 .flags = GENL_UNS_ADMIN_PERM,
12477 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12478 NL80211_FLAG_NEED_RTNL,
12481 .cmd = NL80211_CMD_SET_NOACK_MAP,
12482 .doit = nl80211_set_noack_map,
12483 .policy = nl80211_policy,
12484 .flags = GENL_UNS_ADMIN_PERM,
12485 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12486 NL80211_FLAG_NEED_RTNL,
12489 .cmd = NL80211_CMD_START_P2P_DEVICE,
12490 .doit = nl80211_start_p2p_device,
12491 .policy = nl80211_policy,
12492 .flags = GENL_UNS_ADMIN_PERM,
12493 .internal_flags = NL80211_FLAG_NEED_WDEV |
12494 NL80211_FLAG_NEED_RTNL,
12497 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
12498 .doit = nl80211_stop_p2p_device,
12499 .policy = nl80211_policy,
12500 .flags = GENL_UNS_ADMIN_PERM,
12501 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12502 NL80211_FLAG_NEED_RTNL,
12505 .cmd = NL80211_CMD_START_NAN,
12506 .doit = nl80211_start_nan,
12507 .policy = nl80211_policy,
12508 .flags = GENL_ADMIN_PERM,
12509 .internal_flags = NL80211_FLAG_NEED_WDEV |
12510 NL80211_FLAG_NEED_RTNL,
12513 .cmd = NL80211_CMD_STOP_NAN,
12514 .doit = nl80211_stop_nan,
12515 .policy = nl80211_policy,
12516 .flags = GENL_ADMIN_PERM,
12517 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12518 NL80211_FLAG_NEED_RTNL,
12521 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
12522 .doit = nl80211_nan_add_func,
12523 .policy = nl80211_policy,
12524 .flags = GENL_ADMIN_PERM,
12525 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12526 NL80211_FLAG_NEED_RTNL,
12529 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
12530 .doit = nl80211_nan_del_func,
12531 .policy = nl80211_policy,
12532 .flags = GENL_ADMIN_PERM,
12533 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12534 NL80211_FLAG_NEED_RTNL,
12537 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
12538 .doit = nl80211_nan_change_config,
12539 .policy = nl80211_policy,
12540 .flags = GENL_ADMIN_PERM,
12541 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12542 NL80211_FLAG_NEED_RTNL,
12545 .cmd = NL80211_CMD_SET_MCAST_RATE,
12546 .doit = nl80211_set_mcast_rate,
12547 .policy = nl80211_policy,
12548 .flags = GENL_UNS_ADMIN_PERM,
12549 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12550 NL80211_FLAG_NEED_RTNL,
12553 .cmd = NL80211_CMD_SET_MAC_ACL,
12554 .doit = nl80211_set_mac_acl,
12555 .policy = nl80211_policy,
12556 .flags = GENL_UNS_ADMIN_PERM,
12557 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12558 NL80211_FLAG_NEED_RTNL,
12561 .cmd = NL80211_CMD_RADAR_DETECT,
12562 .doit = nl80211_start_radar_detection,
12563 .policy = nl80211_policy,
12564 .flags = GENL_UNS_ADMIN_PERM,
12565 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12566 NL80211_FLAG_NEED_RTNL,
12569 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
12570 .doit = nl80211_get_protocol_features,
12571 .policy = nl80211_policy,
12574 .cmd = NL80211_CMD_UPDATE_FT_IES,
12575 .doit = nl80211_update_ft_ies,
12576 .policy = nl80211_policy,
12577 .flags = GENL_UNS_ADMIN_PERM,
12578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12579 NL80211_FLAG_NEED_RTNL,
12582 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
12583 .doit = nl80211_crit_protocol_start,
12584 .policy = nl80211_policy,
12585 .flags = GENL_UNS_ADMIN_PERM,
12586 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12587 NL80211_FLAG_NEED_RTNL,
12590 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
12591 .doit = nl80211_crit_protocol_stop,
12592 .policy = nl80211_policy,
12593 .flags = GENL_UNS_ADMIN_PERM,
12594 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12595 NL80211_FLAG_NEED_RTNL,
12598 .cmd = NL80211_CMD_GET_COALESCE,
12599 .doit = nl80211_get_coalesce,
12600 .policy = nl80211_policy,
12601 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12602 NL80211_FLAG_NEED_RTNL,
12605 .cmd = NL80211_CMD_SET_COALESCE,
12606 .doit = nl80211_set_coalesce,
12607 .policy = nl80211_policy,
12608 .flags = GENL_UNS_ADMIN_PERM,
12609 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12610 NL80211_FLAG_NEED_RTNL,
12613 .cmd = NL80211_CMD_CHANNEL_SWITCH,
12614 .doit = nl80211_channel_switch,
12615 .policy = nl80211_policy,
12616 .flags = GENL_UNS_ADMIN_PERM,
12617 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12618 NL80211_FLAG_NEED_RTNL,
12621 .cmd = NL80211_CMD_VENDOR,
12622 .doit = nl80211_vendor_cmd,
12623 .dumpit = nl80211_vendor_cmd_dump,
12624 .policy = nl80211_policy,
12625 .flags = GENL_UNS_ADMIN_PERM,
12626 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12627 NL80211_FLAG_NEED_RTNL,
12630 .cmd = NL80211_CMD_SET_QOS_MAP,
12631 .doit = nl80211_set_qos_map,
12632 .policy = nl80211_policy,
12633 .flags = GENL_UNS_ADMIN_PERM,
12634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12635 NL80211_FLAG_NEED_RTNL,
12638 .cmd = NL80211_CMD_ADD_TX_TS,
12639 .doit = nl80211_add_tx_ts,
12640 .policy = nl80211_policy,
12641 .flags = GENL_UNS_ADMIN_PERM,
12642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12643 NL80211_FLAG_NEED_RTNL,
12646 .cmd = NL80211_CMD_DEL_TX_TS,
12647 .doit = nl80211_del_tx_ts,
12648 .policy = nl80211_policy,
12649 .flags = GENL_UNS_ADMIN_PERM,
12650 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12651 NL80211_FLAG_NEED_RTNL,
12654 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
12655 .doit = nl80211_tdls_channel_switch,
12656 .policy = nl80211_policy,
12657 .flags = GENL_UNS_ADMIN_PERM,
12658 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12659 NL80211_FLAG_NEED_RTNL,
12662 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
12663 .doit = nl80211_tdls_cancel_channel_switch,
12664 .policy = nl80211_policy,
12665 .flags = GENL_UNS_ADMIN_PERM,
12666 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12667 NL80211_FLAG_NEED_RTNL,
12671 /* notification functions */
12673 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
12674 enum nl80211_commands cmd)
12676 struct sk_buff *msg;
12677 struct nl80211_dump_wiphy_state state = {};
12679 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
12680 cmd != NL80211_CMD_DEL_WIPHY);
12682 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12686 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
12691 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12692 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12695 void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
12696 struct wireless_dev *wdev,
12697 enum nl80211_commands cmd)
12699 struct sk_buff *msg;
12701 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
12702 cmd != NL80211_CMD_DEL_INTERFACE);
12704 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12708 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
12709 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
12714 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12715 NL80211_MCGRP_CONFIG, GFP_KERNEL);
12718 static int nl80211_add_scan_req(struct sk_buff *msg,
12719 struct cfg80211_registered_device *rdev)
12721 struct cfg80211_scan_request *req = rdev->scan_req;
12722 struct nlattr *nest;
12728 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
12730 goto nla_put_failure;
12731 for (i = 0; i < req->n_ssids; i++) {
12732 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
12733 goto nla_put_failure;
12735 nla_nest_end(msg, nest);
12737 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
12739 goto nla_put_failure;
12740 for (i = 0; i < req->n_channels; i++) {
12741 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
12742 goto nla_put_failure;
12744 nla_nest_end(msg, nest);
12747 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
12748 goto nla_put_failure;
12751 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
12752 goto nla_put_failure;
12754 if (req->info.scan_start_tsf &&
12755 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
12756 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
12757 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
12758 req->info.tsf_bssid)))
12759 goto nla_put_failure;
12766 static int nl80211_send_scan_msg(struct sk_buff *msg,
12767 struct cfg80211_registered_device *rdev,
12768 struct wireless_dev *wdev,
12769 u32 portid, u32 seq, int flags,
12774 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
12778 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12779 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12780 wdev->netdev->ifindex)) ||
12781 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12783 goto nla_put_failure;
12785 /* ignore errors and send incomplete event anyway */
12786 nl80211_add_scan_req(msg, rdev);
12788 genlmsg_end(msg, hdr);
12792 genlmsg_cancel(msg, hdr);
12797 nl80211_send_sched_scan_msg(struct sk_buff *msg,
12798 struct cfg80211_registered_device *rdev,
12799 struct net_device *netdev,
12800 u32 portid, u32 seq, int flags, u32 cmd)
12804 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
12808 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12809 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12810 goto nla_put_failure;
12812 genlmsg_end(msg, hdr);
12816 genlmsg_cancel(msg, hdr);
12820 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
12821 struct wireless_dev *wdev)
12823 struct sk_buff *msg;
12825 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12829 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
12830 NL80211_CMD_TRIGGER_SCAN) < 0) {
12835 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12836 NL80211_MCGRP_SCAN, GFP_KERNEL);
12839 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
12840 struct wireless_dev *wdev, bool aborted)
12842 struct sk_buff *msg;
12844 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12848 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
12849 aborted ? NL80211_CMD_SCAN_ABORTED :
12850 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
12858 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
12859 struct sk_buff *msg)
12864 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12865 NL80211_MCGRP_SCAN, GFP_KERNEL);
12868 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
12869 struct net_device *netdev)
12871 struct sk_buff *msg;
12873 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12877 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
12878 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
12883 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12884 NL80211_MCGRP_SCAN, GFP_KERNEL);
12887 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
12888 struct net_device *netdev, u32 cmd)
12890 struct sk_buff *msg;
12892 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12896 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12901 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12902 NL80211_MCGRP_SCAN, GFP_KERNEL);
12905 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12906 struct regulatory_request *request)
12908 /* Userspace can always count this one always being set */
12909 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12910 goto nla_put_failure;
12912 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12913 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12914 NL80211_REGDOM_TYPE_WORLD))
12915 goto nla_put_failure;
12916 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12917 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12918 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12919 goto nla_put_failure;
12920 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12921 request->intersect) {
12922 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12923 NL80211_REGDOM_TYPE_INTERSECTION))
12924 goto nla_put_failure;
12926 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12927 NL80211_REGDOM_TYPE_COUNTRY) ||
12928 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12930 goto nla_put_failure;
12933 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12934 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12937 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12938 goto nla_put_failure;
12941 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12942 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12943 goto nla_put_failure;
12953 * This can happen on global regulatory changes or device specific settings
12954 * based on custom regulatory domains.
12956 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12957 struct regulatory_request *request)
12959 struct sk_buff *msg;
12962 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12966 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12972 if (nl80211_reg_change_event_fill(msg, request) == false)
12973 goto nla_put_failure;
12975 genlmsg_end(msg, hdr);
12978 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12979 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12985 genlmsg_cancel(msg, hdr);
12989 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12990 struct net_device *netdev,
12991 const u8 *buf, size_t len,
12992 enum nl80211_commands cmd, gfp_t gfp,
12995 struct sk_buff *msg;
12998 msg = nlmsg_new(100 + len, gfp);
13002 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13008 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13009 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13010 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13011 goto nla_put_failure;
13013 if (uapsd_queues >= 0) {
13014 struct nlattr *nla_wmm =
13015 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13017 goto nla_put_failure;
13019 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13021 goto nla_put_failure;
13023 nla_nest_end(msg, nla_wmm);
13026 genlmsg_end(msg, hdr);
13028 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13029 NL80211_MCGRP_MLME, gfp);
13033 genlmsg_cancel(msg, hdr);
13037 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
13038 struct net_device *netdev, const u8 *buf,
13039 size_t len, gfp_t gfp)
13041 nl80211_send_mlme_event(rdev, netdev, buf, len,
13042 NL80211_CMD_AUTHENTICATE, gfp, -1);
13045 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13046 struct net_device *netdev, const u8 *buf,
13047 size_t len, gfp_t gfp, int uapsd_queues)
13049 nl80211_send_mlme_event(rdev, netdev, buf, len,
13050 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
13053 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
13054 struct net_device *netdev, const u8 *buf,
13055 size_t len, gfp_t gfp)
13057 nl80211_send_mlme_event(rdev, netdev, buf, len,
13058 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
13061 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13062 struct net_device *netdev, const u8 *buf,
13063 size_t len, gfp_t gfp)
13065 nl80211_send_mlme_event(rdev, netdev, buf, len,
13066 NL80211_CMD_DISASSOCIATE, gfp, -1);
13069 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13072 struct wireless_dev *wdev = dev->ieee80211_ptr;
13073 struct wiphy *wiphy = wdev->wiphy;
13074 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13075 const struct ieee80211_mgmt *mgmt = (void *)buf;
13078 if (WARN_ON(len < 2))
13081 if (ieee80211_is_deauth(mgmt->frame_control))
13082 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13084 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
13086 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
13087 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
13089 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
13091 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13092 struct net_device *netdev, int cmd,
13093 const u8 *addr, gfp_t gfp)
13095 struct sk_buff *msg;
13098 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13102 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13108 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13109 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13110 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13111 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13112 goto nla_put_failure;
13114 genlmsg_end(msg, hdr);
13116 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13117 NL80211_MCGRP_MLME, gfp);
13121 genlmsg_cancel(msg, hdr);
13125 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
13126 struct net_device *netdev, const u8 *addr,
13129 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
13133 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
13134 struct net_device *netdev, const u8 *addr,
13137 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13141 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
13142 struct net_device *netdev, const u8 *bssid,
13143 const u8 *req_ie, size_t req_ie_len,
13144 const u8 *resp_ie, size_t resp_ie_len,
13145 int status, gfp_t gfp)
13147 struct sk_buff *msg;
13150 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
13154 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13160 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13161 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13162 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
13163 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
13164 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13166 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
13168 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13170 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13171 goto nla_put_failure;
13173 genlmsg_end(msg, hdr);
13175 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13176 NL80211_MCGRP_MLME, gfp);
13180 genlmsg_cancel(msg, hdr);
13184 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
13185 struct net_device *netdev, const u8 *bssid,
13186 const u8 *req_ie, size_t req_ie_len,
13187 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
13189 struct sk_buff *msg;
13192 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
13196 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13202 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13203 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13204 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
13206 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
13208 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
13209 goto nla_put_failure;
13211 genlmsg_end(msg, hdr);
13213 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13214 NL80211_MCGRP_MLME, gfp);
13218 genlmsg_cancel(msg, hdr);
13222 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13223 struct net_device *netdev, u16 reason,
13224 const u8 *ie, size_t ie_len, bool from_ap)
13226 struct sk_buff *msg;
13229 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
13233 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13239 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13240 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13241 (from_ap && reason &&
13242 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13244 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13245 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13246 goto nla_put_failure;
13248 genlmsg_end(msg, hdr);
13250 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13251 NL80211_MCGRP_MLME, GFP_KERNEL);
13255 genlmsg_cancel(msg, hdr);
13259 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13260 struct net_device *netdev, const u8 *bssid,
13263 struct sk_buff *msg;
13266 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13270 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13277 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13278 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13279 goto nla_put_failure;
13281 genlmsg_end(msg, hdr);
13283 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13284 NL80211_MCGRP_MLME, gfp);
13288 genlmsg_cancel(msg, hdr);
13292 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13293 const u8* ie, u8 ie_len, gfp_t gfp)
13295 struct wireless_dev *wdev = dev->ieee80211_ptr;
13296 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13297 struct sk_buff *msg;
13300 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13303 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13305 msg = nlmsg_new(100 + ie_len, gfp);
13309 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13315 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13316 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13317 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
13319 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13320 goto nla_put_failure;
13322 genlmsg_end(msg, hdr);
13324 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13325 NL80211_MCGRP_MLME, gfp);
13329 genlmsg_cancel(msg, hdr);
13332 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
13334 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13335 struct net_device *netdev, const u8 *addr,
13336 enum nl80211_key_type key_type, int key_id,
13337 const u8 *tsc, gfp_t gfp)
13339 struct sk_buff *msg;
13342 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13346 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13352 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13353 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13354 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13355 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13357 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13358 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13359 goto nla_put_failure;
13361 genlmsg_end(msg, hdr);
13363 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13364 NL80211_MCGRP_MLME, gfp);
13368 genlmsg_cancel(msg, hdr);
13372 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13373 struct ieee80211_channel *channel_before,
13374 struct ieee80211_channel *channel_after)
13376 struct sk_buff *msg;
13378 struct nlattr *nl_freq;
13380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
13384 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
13391 * Since we are applying the beacon hint to a wiphy we know its
13392 * wiphy_idx is valid
13394 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
13395 goto nla_put_failure;
13398 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
13400 goto nla_put_failure;
13401 if (nl80211_msg_put_channel(msg, channel_before, false))
13402 goto nla_put_failure;
13403 nla_nest_end(msg, nl_freq);
13406 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
13408 goto nla_put_failure;
13409 if (nl80211_msg_put_channel(msg, channel_after, false))
13410 goto nla_put_failure;
13411 nla_nest_end(msg, nl_freq);
13413 genlmsg_end(msg, hdr);
13416 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
13417 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
13423 genlmsg_cancel(msg, hdr);
13427 static void nl80211_send_remain_on_chan_event(
13428 int cmd, struct cfg80211_registered_device *rdev,
13429 struct wireless_dev *wdev, u64 cookie,
13430 struct ieee80211_channel *chan,
13431 unsigned int duration, gfp_t gfp)
13433 struct sk_buff *msg;
13436 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13440 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13446 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13447 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13448 wdev->netdev->ifindex)) ||
13449 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13450 NL80211_ATTR_PAD) ||
13451 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
13452 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
13453 NL80211_CHAN_NO_HT) ||
13454 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13456 goto nla_put_failure;
13458 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
13459 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
13460 goto nla_put_failure;
13462 genlmsg_end(msg, hdr);
13464 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13465 NL80211_MCGRP_MLME, gfp);
13469 genlmsg_cancel(msg, hdr);
13473 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
13474 struct ieee80211_channel *chan,
13475 unsigned int duration, gfp_t gfp)
13477 struct wiphy *wiphy = wdev->wiphy;
13478 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13480 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
13481 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
13482 rdev, wdev, cookie, chan,
13485 EXPORT_SYMBOL(cfg80211_ready_on_channel);
13487 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
13488 struct ieee80211_channel *chan,
13491 struct wiphy *wiphy = wdev->wiphy;
13492 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13494 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
13495 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
13496 rdev, wdev, cookie, chan, 0, gfp);
13498 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
13500 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
13501 struct station_info *sinfo, gfp_t gfp)
13503 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
13504 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13505 struct sk_buff *msg;
13507 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
13509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13513 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
13514 rdev, dev, mac_addr, sinfo) < 0) {
13519 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13520 NL80211_MCGRP_MLME, gfp);
13522 EXPORT_SYMBOL(cfg80211_new_sta);
13524 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
13525 struct station_info *sinfo, gfp_t gfp)
13527 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
13528 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13529 struct sk_buff *msg;
13530 struct station_info empty_sinfo = {};
13533 sinfo = &empty_sinfo;
13535 trace_cfg80211_del_sta(dev, mac_addr);
13537 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13541 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
13542 rdev, dev, mac_addr, sinfo) < 0) {
13547 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13548 NL80211_MCGRP_MLME, gfp);
13550 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
13552 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
13553 enum nl80211_connect_failed_reason reason,
13556 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
13557 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13558 struct sk_buff *msg;
13561 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
13565 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
13571 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13572 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
13573 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
13574 goto nla_put_failure;
13576 genlmsg_end(msg, hdr);
13578 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13579 NL80211_MCGRP_MLME, gfp);
13583 genlmsg_cancel(msg, hdr);
13586 EXPORT_SYMBOL(cfg80211_conn_failed);
13588 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
13589 const u8 *addr, gfp_t gfp)
13591 struct wireless_dev *wdev = dev->ieee80211_ptr;
13592 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13593 struct sk_buff *msg;
13595 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
13600 msg = nlmsg_new(100, gfp);
13604 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13610 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13611 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13612 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13613 goto nla_put_failure;
13615 genlmsg_end(msg, hdr);
13616 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13620 genlmsg_cancel(msg, hdr);
13625 bool cfg80211_rx_spurious_frame(struct net_device *dev,
13626 const u8 *addr, gfp_t gfp)
13628 struct wireless_dev *wdev = dev->ieee80211_ptr;
13631 trace_cfg80211_rx_spurious_frame(dev, addr);
13633 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13634 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
13635 trace_cfg80211_return_bool(false);
13638 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
13640 trace_cfg80211_return_bool(ret);
13643 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
13645 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
13646 const u8 *addr, gfp_t gfp)
13648 struct wireless_dev *wdev = dev->ieee80211_ptr;
13651 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
13653 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
13654 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
13655 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
13656 trace_cfg80211_return_bool(false);
13659 ret = __nl80211_unexpected_frame(dev,
13660 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
13662 trace_cfg80211_return_bool(ret);
13665 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
13667 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
13668 struct wireless_dev *wdev, u32 nlportid,
13669 int freq, int sig_dbm,
13670 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
13672 struct net_device *netdev = wdev->netdev;
13673 struct sk_buff *msg;
13676 msg = nlmsg_new(100 + len, gfp);
13680 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13686 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13687 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13688 netdev->ifindex)) ||
13689 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13690 NL80211_ATTR_PAD) ||
13691 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
13693 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13694 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
13696 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
13697 goto nla_put_failure;
13699 genlmsg_end(msg, hdr);
13701 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13704 genlmsg_cancel(msg, hdr);
13709 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
13710 const u8 *buf, size_t len, bool ack, gfp_t gfp)
13712 struct wiphy *wiphy = wdev->wiphy;
13713 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13714 struct net_device *netdev = wdev->netdev;
13715 struct sk_buff *msg;
13718 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
13720 msg = nlmsg_new(100 + len, gfp);
13724 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
13730 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13731 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13732 netdev->ifindex)) ||
13733 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13734 NL80211_ATTR_PAD) ||
13735 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
13736 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13737 NL80211_ATTR_PAD) ||
13738 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
13739 goto nla_put_failure;
13741 genlmsg_end(msg, hdr);
13743 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13744 NL80211_MCGRP_MLME, gfp);
13748 genlmsg_cancel(msg, hdr);
13751 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
13753 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
13754 const char *mac, gfp_t gfp)
13756 struct wireless_dev *wdev = dev->ieee80211_ptr;
13757 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13758 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13764 cb = (void **)msg->cb;
13766 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
13772 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13773 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
13774 goto nla_put_failure;
13776 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
13777 goto nla_put_failure;
13779 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
13781 goto nla_put_failure;
13791 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
13793 void **cb = (void **)msg->cb;
13794 struct cfg80211_registered_device *rdev = cb[2];
13796 nla_nest_end(msg, cb[1]);
13797 genlmsg_end(msg, cb[0]);
13799 memset(msg->cb, 0, sizeof(msg->cb));
13801 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13802 NL80211_MCGRP_MLME, gfp);
13805 void cfg80211_cqm_rssi_notify(struct net_device *dev,
13806 enum nl80211_cqm_rssi_threshold_event rssi_event,
13809 struct sk_buff *msg;
13811 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
13813 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13814 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13817 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13821 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13823 goto nla_put_failure;
13825 cfg80211_send_cqm(msg, gfp);
13832 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
13834 void cfg80211_cqm_txe_notify(struct net_device *dev,
13835 const u8 *peer, u32 num_packets,
13836 u32 rate, u32 intvl, gfp_t gfp)
13838 struct sk_buff *msg;
13840 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13844 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
13845 goto nla_put_failure;
13847 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
13848 goto nla_put_failure;
13850 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
13851 goto nla_put_failure;
13853 cfg80211_send_cqm(msg, gfp);
13859 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
13861 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
13862 const u8 *peer, u32 num_packets, gfp_t gfp)
13864 struct sk_buff *msg;
13866 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
13868 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13872 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
13873 goto nla_put_failure;
13875 cfg80211_send_cqm(msg, gfp);
13881 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
13883 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
13885 struct sk_buff *msg;
13887 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13891 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
13892 goto nla_put_failure;
13894 cfg80211_send_cqm(msg, gfp);
13900 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13902 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13903 struct net_device *netdev, const u8 *bssid,
13904 const u8 *replay_ctr, gfp_t gfp)
13906 struct sk_buff *msg;
13907 struct nlattr *rekey_attr;
13910 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13914 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13920 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13921 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13922 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13923 goto nla_put_failure;
13925 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13927 goto nla_put_failure;
13929 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13930 NL80211_REPLAY_CTR_LEN, replay_ctr))
13931 goto nla_put_failure;
13933 nla_nest_end(msg, rekey_attr);
13935 genlmsg_end(msg, hdr);
13937 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13938 NL80211_MCGRP_MLME, gfp);
13942 genlmsg_cancel(msg, hdr);
13946 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13947 const u8 *replay_ctr, gfp_t gfp)
13949 struct wireless_dev *wdev = dev->ieee80211_ptr;
13950 struct wiphy *wiphy = wdev->wiphy;
13951 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13953 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13954 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13956 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13959 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13960 struct net_device *netdev, int index,
13961 const u8 *bssid, bool preauth, gfp_t gfp)
13963 struct sk_buff *msg;
13964 struct nlattr *attr;
13967 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13971 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13977 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13978 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13979 goto nla_put_failure;
13981 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13983 goto nla_put_failure;
13985 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13986 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13988 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13989 goto nla_put_failure;
13991 nla_nest_end(msg, attr);
13993 genlmsg_end(msg, hdr);
13995 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13996 NL80211_MCGRP_MLME, gfp);
14000 genlmsg_cancel(msg, hdr);
14004 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14005 const u8 *bssid, bool preauth, gfp_t gfp)
14007 struct wireless_dev *wdev = dev->ieee80211_ptr;
14008 struct wiphy *wiphy = wdev->wiphy;
14009 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14011 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14012 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14014 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14016 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14017 struct net_device *netdev,
14018 struct cfg80211_chan_def *chandef,
14020 enum nl80211_commands notif,
14023 struct sk_buff *msg;
14026 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14030 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
14036 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14037 goto nla_put_failure;
14039 if (nl80211_send_chandef(msg, chandef))
14040 goto nla_put_failure;
14042 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14043 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14044 goto nla_put_failure;
14046 genlmsg_end(msg, hdr);
14048 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14049 NL80211_MCGRP_MLME, gfp);
14053 genlmsg_cancel(msg, hdr);
14057 void cfg80211_ch_switch_notify(struct net_device *dev,
14058 struct cfg80211_chan_def *chandef)
14060 struct wireless_dev *wdev = dev->ieee80211_ptr;
14061 struct wiphy *wiphy = wdev->wiphy;
14062 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14064 ASSERT_WDEV_LOCK(wdev);
14066 trace_cfg80211_ch_switch_notify(dev, chandef);
14068 wdev->chandef = *chandef;
14069 wdev->preset_chandef = *chandef;
14071 if (wdev->iftype == NL80211_IFTYPE_STATION &&
14072 !WARN_ON(!wdev->current_bss))
14073 wdev->current_bss->pub.channel = chandef->chan;
14075 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14076 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
14078 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14080 void cfg80211_ch_switch_started_notify(struct net_device *dev,
14081 struct cfg80211_chan_def *chandef,
14084 struct wireless_dev *wdev = dev->ieee80211_ptr;
14085 struct wiphy *wiphy = wdev->wiphy;
14086 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14088 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14090 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14091 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14093 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14096 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
14097 const struct cfg80211_chan_def *chandef,
14098 enum nl80211_radar_event event,
14099 struct net_device *netdev, gfp_t gfp)
14101 struct sk_buff *msg;
14104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14108 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14114 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14115 goto nla_put_failure;
14117 /* NOP and radar events don't need a netdev parameter */
14119 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14121 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14122 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14124 goto nla_put_failure;
14127 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14128 goto nla_put_failure;
14130 if (nl80211_send_chandef(msg, chandef))
14131 goto nla_put_failure;
14133 genlmsg_end(msg, hdr);
14135 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14136 NL80211_MCGRP_MLME, gfp);
14140 genlmsg_cancel(msg, hdr);
14144 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14145 u64 cookie, bool acked, gfp_t gfp)
14147 struct wireless_dev *wdev = dev->ieee80211_ptr;
14148 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14149 struct sk_buff *msg;
14152 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14154 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14159 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14165 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14166 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14167 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
14168 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14169 NL80211_ATTR_PAD) ||
14170 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14171 goto nla_put_failure;
14173 genlmsg_end(msg, hdr);
14175 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14176 NL80211_MCGRP_MLME, gfp);
14180 genlmsg_cancel(msg, hdr);
14183 EXPORT_SYMBOL(cfg80211_probe_status);
14185 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14186 const u8 *frame, size_t len,
14187 int freq, int sig_dbm)
14189 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14190 struct sk_buff *msg;
14192 struct cfg80211_beacon_registration *reg;
14194 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14196 spin_lock_bh(&rdev->beacon_registrations_lock);
14197 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14198 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14200 spin_unlock_bh(&rdev->beacon_registrations_lock);
14204 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14206 goto nla_put_failure;
14208 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14210 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14212 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14213 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14214 goto nla_put_failure;
14216 genlmsg_end(msg, hdr);
14218 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14220 spin_unlock_bh(&rdev->beacon_registrations_lock);
14224 spin_unlock_bh(&rdev->beacon_registrations_lock);
14226 genlmsg_cancel(msg, hdr);
14229 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14232 static int cfg80211_net_detect_results(struct sk_buff *msg,
14233 struct cfg80211_wowlan_wakeup *wakeup)
14235 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14236 struct nlattr *nl_results, *nl_match, *nl_freqs;
14239 nl_results = nla_nest_start(
14240 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14244 for (i = 0; i < nd->n_matches; i++) {
14245 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14247 nl_match = nla_nest_start(msg, i);
14251 /* The SSID attribute is optional in nl80211, but for
14252 * simplicity reasons it's always present in the
14253 * cfg80211 structure. If a driver can't pass the
14254 * SSID, that needs to be changed. A zero length SSID
14255 * is still a valid SSID (wildcard), so it cannot be
14256 * used for this purpose.
14258 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14259 match->ssid.ssid)) {
14260 nla_nest_cancel(msg, nl_match);
14264 if (match->n_channels) {
14265 nl_freqs = nla_nest_start(
14266 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14268 nla_nest_cancel(msg, nl_match);
14272 for (j = 0; j < match->n_channels; j++) {
14273 if (nla_put_u32(msg, j, match->channels[j])) {
14274 nla_nest_cancel(msg, nl_freqs);
14275 nla_nest_cancel(msg, nl_match);
14280 nla_nest_end(msg, nl_freqs);
14283 nla_nest_end(msg, nl_match);
14287 nla_nest_end(msg, nl_results);
14291 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14292 struct cfg80211_wowlan_wakeup *wakeup,
14295 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14296 struct sk_buff *msg;
14300 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14303 size += wakeup->packet_present_len;
14305 msg = nlmsg_new(size, gfp);
14309 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14314 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14318 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14319 wdev->netdev->ifindex))
14323 struct nlattr *reasons;
14325 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
14329 if (wakeup->disconnect &&
14330 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14332 if (wakeup->magic_pkt &&
14333 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14335 if (wakeup->gtk_rekey_failure &&
14336 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14338 if (wakeup->eap_identity_req &&
14339 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14341 if (wakeup->four_way_handshake &&
14342 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14344 if (wakeup->rfkill_release &&
14345 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14348 if (wakeup->pattern_idx >= 0 &&
14349 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14350 wakeup->pattern_idx))
14353 if (wakeup->tcp_match &&
14354 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14357 if (wakeup->tcp_connlost &&
14358 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14361 if (wakeup->tcp_nomoretokens &&
14363 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14366 if (wakeup->packet) {
14367 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14368 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
14370 if (!wakeup->packet_80211) {
14372 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
14374 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
14377 if (wakeup->packet_len &&
14378 nla_put_u32(msg, len_attr, wakeup->packet_len))
14381 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
14386 if (wakeup->net_detect &&
14387 cfg80211_net_detect_results(msg, wakeup))
14390 nla_nest_end(msg, reasons);
14393 genlmsg_end(msg, hdr);
14395 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14396 NL80211_MCGRP_MLME, gfp);
14402 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
14405 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
14406 enum nl80211_tdls_operation oper,
14407 u16 reason_code, gfp_t gfp)
14409 struct wireless_dev *wdev = dev->ieee80211_ptr;
14410 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14411 struct sk_buff *msg;
14414 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
14417 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14421 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
14427 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14428 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14429 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
14430 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
14431 (reason_code > 0 &&
14432 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
14433 goto nla_put_failure;
14435 genlmsg_end(msg, hdr);
14437 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14438 NL80211_MCGRP_MLME, gfp);
14442 genlmsg_cancel(msg, hdr);
14445 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
14447 static int nl80211_netlink_notify(struct notifier_block * nb,
14448 unsigned long state,
14451 struct netlink_notify *notify = _notify;
14452 struct cfg80211_registered_device *rdev;
14453 struct wireless_dev *wdev;
14454 struct cfg80211_beacon_registration *reg, *tmp;
14456 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
14457 return NOTIFY_DONE;
14461 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
14462 bool schedule_destroy_work = false;
14463 struct cfg80211_sched_scan_request *sched_scan_req =
14464 rcu_dereference(rdev->sched_scan_req);
14466 if (sched_scan_req && notify->portid &&
14467 sched_scan_req->owner_nlportid == notify->portid) {
14468 sched_scan_req->owner_nlportid = 0;
14470 if (rdev->ops->sched_scan_stop &&
14471 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
14472 schedule_work(&rdev->sched_scan_stop_wk);
14475 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
14476 cfg80211_mlme_unregister_socket(wdev, notify->portid);
14478 if (wdev->owner_nlportid == notify->portid)
14479 schedule_destroy_work = true;
14482 spin_lock_bh(&rdev->beacon_registrations_lock);
14483 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
14485 if (reg->nlportid == notify->portid) {
14486 list_del(®->list);
14491 spin_unlock_bh(&rdev->beacon_registrations_lock);
14493 if (schedule_destroy_work) {
14494 struct cfg80211_iface_destroy *destroy;
14496 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
14498 destroy->nlportid = notify->portid;
14499 spin_lock(&rdev->destroy_list_lock);
14500 list_add(&destroy->list, &rdev->destroy_list);
14501 spin_unlock(&rdev->destroy_list_lock);
14502 schedule_work(&rdev->destroy_work);
14510 * It is possible that the user space process that is controlling the
14511 * indoor setting disappeared, so notify the regulatory core.
14513 regulatory_netlink_notify(notify->portid);
14517 static struct notifier_block nl80211_netlink_notifier = {
14518 .notifier_call = nl80211_netlink_notify,
14521 void cfg80211_ft_event(struct net_device *netdev,
14522 struct cfg80211_ft_event_params *ft_event)
14524 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
14525 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14526 struct sk_buff *msg;
14529 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
14531 if (!ft_event->target_ap)
14534 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
14538 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
14542 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14543 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14544 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
14547 if (ft_event->ies &&
14548 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
14550 if (ft_event->ric_ies &&
14551 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
14552 ft_event->ric_ies))
14555 genlmsg_end(msg, hdr);
14557 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14558 NL80211_MCGRP_MLME, GFP_KERNEL);
14563 EXPORT_SYMBOL(cfg80211_ft_event);
14565 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
14567 struct cfg80211_registered_device *rdev;
14568 struct sk_buff *msg;
14572 rdev = wiphy_to_rdev(wdev->wiphy);
14573 if (!rdev->crit_proto_nlportid)
14576 nlportid = rdev->crit_proto_nlportid;
14577 rdev->crit_proto_nlportid = 0;
14579 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14583 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
14585 goto nla_put_failure;
14587 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14588 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14590 goto nla_put_failure;
14592 genlmsg_end(msg, hdr);
14594 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14599 genlmsg_cancel(msg, hdr);
14602 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
14604 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
14606 struct wiphy *wiphy = wdev->wiphy;
14607 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14608 struct sk_buff *msg;
14611 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
14615 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
14619 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14620 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
14621 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14625 genlmsg_end(msg, hdr);
14627 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
14628 NL80211_MCGRP_MLME, GFP_KERNEL);
14634 /* initialisation/exit functions */
14636 int nl80211_init(void)
14640 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
14645 err = netlink_register_notifier(&nl80211_netlink_notifier);
14651 genl_unregister_family(&nl80211_fam);
14655 void nl80211_exit(void)
14657 netlink_unregister_notifier(&nl80211_netlink_notifier);
14658 genl_unregister_family(&nl80211_fam);