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 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,
60 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
63 static const struct genl_multicast_group nl80211_mcgrps[] = {
64 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
65 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
66 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
67 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
68 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
69 #ifdef CONFIG_NL80211_TESTMODE
70 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
74 /* returns ERR_PTR values */
75 static struct wireless_dev *
76 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
78 struct cfg80211_registered_device *rdev;
79 struct wireless_dev *result = NULL;
80 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
81 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
88 if (!have_ifidx && !have_wdev_id)
89 return ERR_PTR(-EINVAL);
92 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
94 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
95 wiphy_idx = wdev_id >> 32;
98 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
99 struct wireless_dev *wdev;
101 if (wiphy_net(&rdev->wiphy) != netns)
104 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
107 list_for_each_entry(wdev, &rdev->wdev_list, list) {
108 if (have_ifidx && wdev->netdev &&
109 wdev->netdev->ifindex == ifidx) {
113 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
125 return ERR_PTR(-ENODEV);
128 static struct cfg80211_registered_device *
129 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
131 struct cfg80211_registered_device *rdev = NULL, *tmp;
132 struct net_device *netdev;
136 if (!attrs[NL80211_ATTR_WIPHY] &&
137 !attrs[NL80211_ATTR_IFINDEX] &&
138 !attrs[NL80211_ATTR_WDEV])
139 return ERR_PTR(-EINVAL);
141 if (attrs[NL80211_ATTR_WIPHY])
142 rdev = cfg80211_rdev_by_wiphy_idx(
143 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
145 if (attrs[NL80211_ATTR_WDEV]) {
146 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
147 struct wireless_dev *wdev;
150 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
152 /* make sure wdev exists */
153 list_for_each_entry(wdev, &tmp->wdev_list, list) {
154 if (wdev->identifier != (u32)wdev_id)
163 if (rdev && tmp != rdev)
164 return ERR_PTR(-EINVAL);
169 if (attrs[NL80211_ATTR_IFINDEX]) {
170 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
171 netdev = __dev_get_by_index(netns, ifindex);
173 if (netdev->ieee80211_ptr)
175 netdev->ieee80211_ptr->wiphy);
179 /* not wireless device -- return error */
181 return ERR_PTR(-EINVAL);
183 /* mismatch -- return error */
184 if (rdev && tmp != rdev)
185 return ERR_PTR(-EINVAL);
192 return ERR_PTR(-ENODEV);
194 if (netns != wiphy_net(&rdev->wiphy))
195 return ERR_PTR(-ENODEV);
201 * This function returns a pointer to the driver
202 * that the genl_info item that is passed refers to.
204 * The result of this can be a PTR_ERR and hence must
205 * be checked with IS_ERR() for errors.
207 static struct cfg80211_registered_device *
208 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
210 return __cfg80211_rdev_from_attrs(netns, info->attrs);
213 static int validate_beacon_head(const struct nlattr *attr)
215 const u8 *data = nla_data(attr);
216 unsigned int len = nla_len(attr);
217 const struct element *elem;
218 const struct ieee80211_mgmt *mgmt = (void *)data;
219 unsigned int fixedlen = offsetof(struct ieee80211_mgmt,
225 if (ieee80211_hdrlen(mgmt->frame_control) !=
226 offsetof(struct ieee80211_mgmt, u.beacon))
232 for_each_element(elem, data, len) {
236 if (for_each_element_completed(elem, data, len))
243 /* policy for the attributes */
244 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
245 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
246 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
248 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
250 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
251 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
252 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
253 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
254 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
256 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
257 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
258 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
259 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
260 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
261 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
263 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
264 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
265 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
267 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
268 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
270 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
271 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
272 .len = WLAN_MAX_KEY_LEN },
273 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
274 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
275 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
276 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
277 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
279 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
280 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
281 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
283 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
284 .len = IEEE80211_MAX_DATA_LEN },
285 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
286 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
287 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
288 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
289 .len = NL80211_MAX_SUPP_RATES },
290 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
291 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
292 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
293 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
294 .len = IEEE80211_MAX_MESH_ID_LEN },
295 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_BINARY,
298 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
299 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
301 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
302 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
303 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
304 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
305 .len = NL80211_MAX_SUPP_RATES },
306 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
308 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
309 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
311 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
313 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
314 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
315 .len = IEEE80211_MAX_DATA_LEN },
316 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
317 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
319 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
320 .len = IEEE80211_MAX_SSID_LEN },
321 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
322 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
323 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
324 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
325 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
326 [NL80211_ATTR_STA_FLAGS2] = {
327 .len = sizeof(struct nl80211_sta_flag_update),
329 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
330 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
331 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
332 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
333 [NL80211_ATTR_STATUS_CODE] = { .type = NLA_U16 },
334 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
335 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
336 [NL80211_ATTR_PID] = { .type = NLA_U32 },
337 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
338 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
339 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
340 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
341 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
342 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
343 .len = IEEE80211_MAX_DATA_LEN },
344 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
345 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
346 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
347 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
348 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
349 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
350 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
351 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
352 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
353 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
354 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
355 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
356 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
357 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
358 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
359 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
360 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
361 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
362 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
363 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
364 .len = IEEE80211_MAX_DATA_LEN },
365 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
366 .len = IEEE80211_MAX_DATA_LEN },
367 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
368 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
369 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
370 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
371 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
372 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
373 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
374 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
375 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
376 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
377 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
378 .len = IEEE80211_MAX_DATA_LEN },
379 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
380 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
381 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
382 .len = NL80211_HT_CAPABILITY_LEN
384 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
385 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
386 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
387 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
388 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
389 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
390 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
391 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
392 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
393 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
394 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
395 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
396 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
397 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
398 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
399 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
400 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
401 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
402 .len = NL80211_VHT_CAPABILITY_LEN,
404 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
405 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
406 .len = IEEE80211_MAX_DATA_LEN },
407 [NL80211_ATTR_CRIT_PROT_ID] = { .type = NLA_U16 },
408 [NL80211_ATTR_MAX_CRIT_PROT_DURATION] = { .type = NLA_U16 },
409 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
410 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
411 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
412 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
413 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
414 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
415 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
416 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
417 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
418 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
419 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
420 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
421 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
422 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
423 .len = IEEE80211_QOS_MAP_LEN_MAX },
424 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
425 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
426 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
427 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
428 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
429 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
430 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
431 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
432 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
433 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
434 [NL80211_ATTR_OPER_CLASS] = { .type = NLA_U8 },
435 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
436 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
437 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
438 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
439 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
442 /* policy for the key attributes */
443 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
444 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
445 [NL80211_KEY_IDX] = { .type = NLA_U8 },
446 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
447 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
448 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
449 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
450 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
451 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
454 /* policy for the key default flags */
455 static const struct nla_policy
456 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
457 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
458 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
461 /* policy for WoWLAN attributes */
462 static const struct nla_policy
463 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
464 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
465 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
466 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
467 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
468 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
469 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
470 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
471 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
472 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
473 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
476 static const struct nla_policy
477 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
478 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
479 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
480 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
481 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
482 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
483 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
484 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
485 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
487 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
488 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
490 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
491 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
492 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
495 /* policy for coalesce rule attributes */
496 static const struct nla_policy
497 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
498 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
499 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
500 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
503 /* policy for GTK rekey offload attributes */
504 static const struct nla_policy
505 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
506 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
507 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
508 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
511 static const struct nla_policy
512 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
513 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
514 .len = IEEE80211_MAX_SSID_LEN },
515 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
518 static const struct nla_policy
519 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
520 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
521 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
524 /* policy for packet pattern attributes */
525 static const struct nla_policy
526 nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
527 [NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
528 [NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
529 [NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
532 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
533 struct netlink_callback *cb,
534 struct cfg80211_registered_device **rdev,
535 struct wireless_dev **wdev)
540 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
541 nl80211_fam.attrbuf, nl80211_fam.maxattr,
546 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
547 nl80211_fam.attrbuf);
549 return PTR_ERR(*wdev);
550 *rdev = wiphy_to_rdev((*wdev)->wiphy);
551 /* 0 is the first index - add 1 to parse only once */
552 cb->args[0] = (*rdev)->wiphy_idx + 1;
553 cb->args[1] = (*wdev)->identifier;
555 /* subtract the 1 again here */
556 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
557 struct wireless_dev *tmp;
561 *rdev = wiphy_to_rdev(wiphy);
564 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
565 if (tmp->identifier == cb->args[1]) {
579 static bool is_valid_ie_attr(const struct nlattr *attr)
587 pos = nla_data(attr);
608 /* message building helper */
609 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
612 /* since there is no private header just add the generic one */
613 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
616 static int nl80211_msg_put_channel(struct sk_buff *msg,
617 struct ieee80211_channel *chan,
620 /* Some channels must be completely excluded from the
621 * list to protect old user-space tools from breaking
623 if (!large && chan->flags &
624 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
627 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
629 goto nla_put_failure;
631 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
632 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
633 goto nla_put_failure;
634 if (chan->flags & IEEE80211_CHAN_NO_IR) {
635 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
636 goto nla_put_failure;
637 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
638 goto nla_put_failure;
640 if (chan->flags & IEEE80211_CHAN_RADAR) {
641 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
642 goto nla_put_failure;
646 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
648 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
650 goto nla_put_failure;
651 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
653 goto nla_put_failure;
655 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
657 goto nla_put_failure;
662 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
663 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
664 goto nla_put_failure;
665 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
666 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
667 goto nla_put_failure;
668 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
669 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
670 goto nla_put_failure;
671 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
672 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
673 goto nla_put_failure;
674 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
675 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
676 goto nla_put_failure;
677 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
678 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
679 goto nla_put_failure;
680 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
681 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
682 goto nla_put_failure;
683 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
684 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
685 goto nla_put_failure;
688 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
689 DBM_TO_MBM(chan->max_power)))
690 goto nla_put_failure;
698 /* netlink command implementations */
705 bool def_uni, def_multi;
708 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
710 struct nlattr *tb[NL80211_KEY_MAX + 1];
711 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
716 k->def = !!tb[NL80211_KEY_DEFAULT];
717 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
726 if (tb[NL80211_KEY_IDX])
727 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
729 if (tb[NL80211_KEY_DATA]) {
730 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
731 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
734 if (tb[NL80211_KEY_SEQ]) {
735 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
736 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
739 if (tb[NL80211_KEY_CIPHER])
740 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
742 if (tb[NL80211_KEY_TYPE]) {
743 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
744 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
748 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
749 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
750 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
751 tb[NL80211_KEY_DEFAULT_TYPES],
752 nl80211_key_default_policy);
756 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
757 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
763 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
765 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
766 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
767 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
770 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
771 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
772 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
775 if (info->attrs[NL80211_ATTR_KEY_IDX])
776 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
778 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
779 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
781 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
782 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
791 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
792 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
793 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
797 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
798 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
799 int err = nla_parse_nested(
800 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
801 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
802 nl80211_key_default_policy);
806 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
807 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
813 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
817 memset(k, 0, sizeof(*k));
821 if (info->attrs[NL80211_ATTR_KEY])
822 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
824 err = nl80211_parse_key_old(info, k);
829 if (k->def && k->defmgmt)
833 if (k->def_uni || !k->def_multi)
839 if (k->idx < 4 || k->idx > 5)
842 if (k->idx < 0 || k->idx > 3)
845 if (k->idx < 0 || k->idx > 5)
853 static struct cfg80211_cached_keys *
854 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
855 struct nlattr *keys, bool *no_ht)
857 struct key_parse parse;
859 struct cfg80211_cached_keys *result;
860 int rem, err, def = 0;
862 result = kzalloc(sizeof(*result), GFP_KERNEL);
864 return ERR_PTR(-ENOMEM);
867 result->defmgmt = -1;
869 nla_for_each_nested(key, keys, rem) {
870 memset(&parse, 0, sizeof(parse));
873 err = nl80211_parse_key_new(key, &parse);
879 if (parse.idx < 0 || parse.idx > 4)
885 result->def = parse.idx;
886 if (!parse.def_uni || !parse.def_multi)
888 } else if (parse.defmgmt)
890 err = cfg80211_validate_key_settings(rdev, &parse.p,
891 parse.idx, false, NULL);
894 result->params[parse.idx].cipher = parse.p.cipher;
895 result->params[parse.idx].key_len = parse.p.key_len;
896 result->params[parse.idx].key = result->data[parse.idx];
897 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
899 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
900 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
912 static int nl80211_key_allowed(struct wireless_dev *wdev)
914 ASSERT_WDEV_LOCK(wdev);
916 switch (wdev->iftype) {
917 case NL80211_IFTYPE_AP:
918 case NL80211_IFTYPE_AP_VLAN:
919 case NL80211_IFTYPE_P2P_GO:
920 case NL80211_IFTYPE_MESH_POINT:
922 case NL80211_IFTYPE_ADHOC:
923 case NL80211_IFTYPE_STATION:
924 case NL80211_IFTYPE_P2P_CLIENT:
925 if (!wdev->current_bss)
928 case NL80211_IFTYPE_UNSPECIFIED:
929 case NL80211_IFTYPE_OCB:
930 case NL80211_IFTYPE_MONITOR:
931 case NL80211_IFTYPE_P2P_DEVICE:
932 case NL80211_IFTYPE_WDS:
933 case NUM_NL80211_IFTYPES:
940 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
943 struct ieee80211_channel *chan;
947 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
948 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
953 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
955 struct nlattr *nl_modes = nla_nest_start(msg, attr);
959 goto nla_put_failure;
963 if ((ifmodes & 1) && nla_put_flag(msg, i))
964 goto nla_put_failure;
969 nla_nest_end(msg, nl_modes);
976 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
980 struct nlattr *nl_combis;
983 nl_combis = nla_nest_start(msg,
984 NL80211_ATTR_INTERFACE_COMBINATIONS);
986 goto nla_put_failure;
988 for (i = 0; i < wiphy->n_iface_combinations; i++) {
989 const struct ieee80211_iface_combination *c;
990 struct nlattr *nl_combi, *nl_limits;
992 c = &wiphy->iface_combinations[i];
994 nl_combi = nla_nest_start(msg, i + 1);
996 goto nla_put_failure;
998 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1000 goto nla_put_failure;
1002 for (j = 0; j < c->n_limits; j++) {
1003 struct nlattr *nl_limit;
1005 nl_limit = nla_nest_start(msg, j + 1);
1007 goto nla_put_failure;
1008 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1010 goto nla_put_failure;
1011 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1012 c->limits[j].types))
1013 goto nla_put_failure;
1014 nla_nest_end(msg, nl_limit);
1017 nla_nest_end(msg, nl_limits);
1019 if (c->beacon_int_infra_match &&
1020 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1021 goto nla_put_failure;
1022 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1023 c->num_different_channels) ||
1024 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1026 goto nla_put_failure;
1028 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1029 c->radar_detect_widths) ||
1030 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1031 c->radar_detect_regions)))
1032 goto nla_put_failure;
1034 nla_nest_end(msg, nl_combi);
1037 nla_nest_end(msg, nl_combis);
1045 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1046 struct sk_buff *msg)
1048 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1049 struct nlattr *nl_tcp;
1054 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1058 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1059 tcp->data_payload_max))
1062 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1063 tcp->data_payload_max))
1066 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1069 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1070 sizeof(*tcp->tok), tcp->tok))
1073 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1074 tcp->data_interval_max))
1077 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1078 tcp->wake_payload_max))
1081 nla_nest_end(msg, nl_tcp);
1085 static int nl80211_send_wowlan(struct sk_buff *msg,
1086 struct cfg80211_registered_device *rdev,
1089 struct nlattr *nl_wowlan;
1091 if (!rdev->wiphy.wowlan)
1094 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1098 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1099 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1100 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1101 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1102 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1103 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1104 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1105 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1106 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1107 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1108 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1109 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1110 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1111 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1112 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1113 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1116 if (rdev->wiphy.wowlan->n_patterns) {
1117 struct nl80211_pattern_support pat = {
1118 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1119 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1120 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1121 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1124 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1129 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1130 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1131 rdev->wiphy.wowlan->max_nd_match_sets))
1134 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1137 nla_nest_end(msg, nl_wowlan);
1143 static int nl80211_send_coalesce(struct sk_buff *msg,
1144 struct cfg80211_registered_device *rdev)
1146 struct nl80211_coalesce_rule_support rule;
1148 if (!rdev->wiphy.coalesce)
1151 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1152 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1153 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1154 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1155 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1156 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1158 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1164 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1165 struct ieee80211_supported_band *sband)
1167 struct nlattr *nl_rates, *nl_rate;
1168 struct ieee80211_rate *rate;
1172 if (sband->ht_cap.ht_supported &&
1173 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1174 sizeof(sband->ht_cap.mcs),
1175 &sband->ht_cap.mcs) ||
1176 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1177 sband->ht_cap.cap) ||
1178 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1179 sband->ht_cap.ampdu_factor) ||
1180 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1181 sband->ht_cap.ampdu_density)))
1185 if (sband->vht_cap.vht_supported &&
1186 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1187 sizeof(sband->vht_cap.vht_mcs),
1188 &sband->vht_cap.vht_mcs) ||
1189 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1190 sband->vht_cap.cap)))
1194 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1198 for (i = 0; i < sband->n_bitrates; i++) {
1199 nl_rate = nla_nest_start(msg, i);
1203 rate = &sband->bitrates[i];
1204 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1207 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1209 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1212 nla_nest_end(msg, nl_rate);
1215 nla_nest_end(msg, nl_rates);
1221 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1222 const struct ieee80211_txrx_stypes *mgmt_stypes)
1225 struct nlattr *nl_ftypes, *nl_ifs;
1226 enum nl80211_iftype ift;
1232 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1236 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1237 nl_ftypes = nla_nest_start(msg, ift);
1241 stypes = mgmt_stypes[ift].tx;
1244 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1245 (i << 4) | IEEE80211_FTYPE_MGMT))
1250 nla_nest_end(msg, nl_ftypes);
1253 nla_nest_end(msg, nl_ifs);
1255 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1259 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1260 nl_ftypes = nla_nest_start(msg, ift);
1264 stypes = mgmt_stypes[ift].rx;
1267 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1268 (i << 4) | IEEE80211_FTYPE_MGMT))
1273 nla_nest_end(msg, nl_ftypes);
1275 nla_nest_end(msg, nl_ifs);
1280 struct nl80211_dump_wiphy_state {
1283 long split_start, band_start, chan_start;
1287 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1288 enum nl80211_commands cmd,
1289 struct sk_buff *msg, u32 portid, u32 seq,
1290 int flags, struct nl80211_dump_wiphy_state *state)
1293 struct nlattr *nl_bands, *nl_band;
1294 struct nlattr *nl_freqs, *nl_freq;
1295 struct nlattr *nl_cmds;
1296 enum ieee80211_band band;
1297 struct ieee80211_channel *chan;
1299 const struct ieee80211_txrx_stypes *mgmt_stypes =
1300 rdev->wiphy.mgmt_stypes;
1303 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1307 if (WARN_ON(!state))
1310 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1311 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1312 wiphy_name(&rdev->wiphy)) ||
1313 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1314 cfg80211_rdev_list_generation))
1315 goto nla_put_failure;
1317 if (cmd != NL80211_CMD_NEW_WIPHY)
1320 switch (state->split_start) {
1322 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1323 rdev->wiphy.retry_short) ||
1324 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1325 rdev->wiphy.retry_long) ||
1326 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1327 rdev->wiphy.frag_threshold) ||
1328 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1329 rdev->wiphy.rts_threshold) ||
1330 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1331 rdev->wiphy.coverage_class) ||
1332 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1333 rdev->wiphy.max_scan_ssids) ||
1334 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1335 rdev->wiphy.max_sched_scan_ssids) ||
1336 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1337 rdev->wiphy.max_scan_ie_len) ||
1338 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1339 rdev->wiphy.max_sched_scan_ie_len) ||
1340 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1341 rdev->wiphy.max_match_sets) ||
1342 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1343 rdev->wiphy.max_sched_scan_plans) ||
1344 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1345 rdev->wiphy.max_sched_scan_plan_interval) ||
1346 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1347 rdev->wiphy.max_sched_scan_plan_iterations))
1348 goto nla_put_failure;
1350 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1351 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1352 goto nla_put_failure;
1353 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1354 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1355 goto nla_put_failure;
1356 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1357 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1358 goto nla_put_failure;
1359 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1360 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1361 goto nla_put_failure;
1362 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1363 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1364 goto nla_put_failure;
1365 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1366 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1367 goto nla_put_failure;
1368 state->split_start++;
1372 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1373 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1374 rdev->wiphy.cipher_suites))
1375 goto nla_put_failure;
1377 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1378 rdev->wiphy.max_num_pmkids))
1379 goto nla_put_failure;
1381 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1382 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1383 goto nla_put_failure;
1385 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1386 rdev->wiphy.available_antennas_tx) ||
1387 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1388 rdev->wiphy.available_antennas_rx))
1389 goto nla_put_failure;
1391 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1392 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1393 rdev->wiphy.probe_resp_offload))
1394 goto nla_put_failure;
1396 if ((rdev->wiphy.available_antennas_tx ||
1397 rdev->wiphy.available_antennas_rx) &&
1398 rdev->ops->get_antenna) {
1399 u32 tx_ant = 0, rx_ant = 0;
1401 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1403 if (nla_put_u32(msg,
1404 NL80211_ATTR_WIPHY_ANTENNA_TX,
1407 NL80211_ATTR_WIPHY_ANTENNA_RX,
1409 goto nla_put_failure;
1413 state->split_start++;
1417 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1418 rdev->wiphy.interface_modes))
1419 goto nla_put_failure;
1420 state->split_start++;
1424 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1426 goto nla_put_failure;
1428 for (band = state->band_start;
1429 band < IEEE80211_NUM_BANDS; band++) {
1430 struct ieee80211_supported_band *sband;
1432 sband = rdev->wiphy.bands[band];
1437 nl_band = nla_nest_start(msg, band);
1439 goto nla_put_failure;
1441 switch (state->chan_start) {
1443 if (nl80211_send_band_rateinfo(msg, sband))
1444 goto nla_put_failure;
1445 state->chan_start++;
1449 /* add frequencies */
1450 nl_freqs = nla_nest_start(
1451 msg, NL80211_BAND_ATTR_FREQS);
1453 goto nla_put_failure;
1455 for (i = state->chan_start - 1;
1456 i < sband->n_channels;
1458 nl_freq = nla_nest_start(msg, i);
1460 goto nla_put_failure;
1462 chan = &sband->channels[i];
1464 if (nl80211_msg_put_channel(
1467 goto nla_put_failure;
1469 nla_nest_end(msg, nl_freq);
1473 if (i < sband->n_channels)
1474 state->chan_start = i + 2;
1476 state->chan_start = 0;
1477 nla_nest_end(msg, nl_freqs);
1480 nla_nest_end(msg, nl_band);
1483 /* start again here */
1484 if (state->chan_start)
1489 nla_nest_end(msg, nl_bands);
1491 if (band < IEEE80211_NUM_BANDS)
1492 state->band_start = band + 1;
1494 state->band_start = 0;
1496 /* if bands & channels are done, continue outside */
1497 if (state->band_start == 0 && state->chan_start == 0)
1498 state->split_start++;
1502 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1504 goto nla_put_failure;
1507 #define CMD(op, n) \
1509 if (rdev->ops->op) { \
1511 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1512 goto nla_put_failure; \
1516 CMD(add_virtual_intf, NEW_INTERFACE);
1517 CMD(change_virtual_intf, SET_INTERFACE);
1518 CMD(add_key, NEW_KEY);
1519 CMD(start_ap, START_AP);
1520 CMD(add_station, NEW_STATION);
1521 CMD(add_mpath, NEW_MPATH);
1522 CMD(update_mesh_config, SET_MESH_CONFIG);
1523 CMD(change_bss, SET_BSS);
1524 CMD(auth, AUTHENTICATE);
1525 CMD(assoc, ASSOCIATE);
1526 CMD(deauth, DEAUTHENTICATE);
1527 CMD(disassoc, DISASSOCIATE);
1528 CMD(join_ibss, JOIN_IBSS);
1529 CMD(join_mesh, JOIN_MESH);
1530 CMD(set_pmksa, SET_PMKSA);
1531 CMD(del_pmksa, DEL_PMKSA);
1532 CMD(flush_pmksa, FLUSH_PMKSA);
1533 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1534 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1535 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1536 CMD(mgmt_tx, FRAME);
1537 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1538 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1540 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1541 goto nla_put_failure;
1543 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1544 rdev->ops->join_mesh) {
1546 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1547 goto nla_put_failure;
1549 CMD(set_wds_peer, SET_WDS_PEER);
1550 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1551 CMD(tdls_mgmt, TDLS_MGMT);
1552 CMD(tdls_oper, TDLS_OPER);
1554 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1555 CMD(sched_scan_start, START_SCHED_SCAN);
1556 CMD(probe_client, PROBE_CLIENT);
1557 CMD(set_noack_map, SET_NOACK_MAP);
1558 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1560 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1561 goto nla_put_failure;
1563 CMD(start_p2p_device, START_P2P_DEVICE);
1564 CMD(set_mcast_rate, SET_MCAST_RATE);
1565 #ifdef CONFIG_NL80211_TESTMODE
1566 CMD(testmode_cmd, TESTMODE);
1569 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1570 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1571 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1572 CMD(channel_switch, CHANNEL_SWITCH);
1573 CMD(set_qos_map, SET_QOS_MAP);
1574 if (rdev->wiphy.features &
1575 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1576 CMD(add_tx_ts, ADD_TX_TS);
1578 /* add into the if now */
1581 if (rdev->ops->connect || rdev->ops->auth) {
1583 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1584 goto nla_put_failure;
1587 if (rdev->ops->disconnect || rdev->ops->deauth) {
1589 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1590 goto nla_put_failure;
1593 nla_nest_end(msg, nl_cmds);
1594 state->split_start++;
1598 if (rdev->ops->remain_on_channel &&
1599 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1601 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1602 rdev->wiphy.max_remain_on_channel_duration))
1603 goto nla_put_failure;
1605 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1606 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1607 goto nla_put_failure;
1609 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1610 goto nla_put_failure;
1611 state->split_start++;
1616 if (nl80211_send_wowlan(msg, rdev, state->split))
1617 goto nla_put_failure;
1618 state->split_start++;
1622 state->split_start++;
1625 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1626 rdev->wiphy.software_iftypes))
1627 goto nla_put_failure;
1629 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1631 goto nla_put_failure;
1633 state->split_start++;
1637 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1638 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1639 rdev->wiphy.ap_sme_capa))
1640 goto nla_put_failure;
1642 features = rdev->wiphy.features;
1644 * We can only add the per-channel limit information if the
1645 * dump is split, otherwise it makes it too big. Therefore
1646 * only advertise it in that case.
1649 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1650 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1651 goto nla_put_failure;
1653 if (rdev->wiphy.ht_capa_mod_mask &&
1654 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1655 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1656 rdev->wiphy.ht_capa_mod_mask))
1657 goto nla_put_failure;
1659 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1660 rdev->wiphy.max_acl_mac_addrs &&
1661 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1662 rdev->wiphy.max_acl_mac_addrs))
1663 goto nla_put_failure;
1666 * Any information below this point is only available to
1667 * applications that can deal with it being split. This
1668 * helps ensure that newly added capabilities don't break
1669 * older tools by overrunning their buffers.
1671 * We still increment split_start so that in the split
1672 * case we'll continue with more data in the next round,
1673 * but break unconditionally so unsplit data stops here.
1676 state->split_start++;
1678 state->split_start = 0;
1681 if (rdev->wiphy.extended_capabilities &&
1682 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1683 rdev->wiphy.extended_capabilities_len,
1684 rdev->wiphy.extended_capabilities) ||
1685 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1686 rdev->wiphy.extended_capabilities_len,
1687 rdev->wiphy.extended_capabilities_mask)))
1688 goto nla_put_failure;
1690 if (rdev->wiphy.vht_capa_mod_mask &&
1691 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1692 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1693 rdev->wiphy.vht_capa_mod_mask))
1694 goto nla_put_failure;
1696 state->split_start++;
1699 if (nl80211_send_coalesce(msg, rdev))
1700 goto nla_put_failure;
1702 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1703 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1704 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1705 goto nla_put_failure;
1707 if (rdev->wiphy.max_ap_assoc_sta &&
1708 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1709 rdev->wiphy.max_ap_assoc_sta))
1710 goto nla_put_failure;
1712 state->split_start++;
1715 if (rdev->wiphy.n_vendor_commands) {
1716 const struct nl80211_vendor_cmd_info *info;
1717 struct nlattr *nested;
1719 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1721 goto nla_put_failure;
1723 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1724 info = &rdev->wiphy.vendor_commands[i].info;
1725 if (nla_put(msg, i + 1, sizeof(*info), info))
1726 goto nla_put_failure;
1728 nla_nest_end(msg, nested);
1731 if (rdev->wiphy.n_vendor_events) {
1732 const struct nl80211_vendor_cmd_info *info;
1733 struct nlattr *nested;
1735 nested = nla_nest_start(msg,
1736 NL80211_ATTR_VENDOR_EVENTS);
1738 goto nla_put_failure;
1740 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1741 info = &rdev->wiphy.vendor_events[i];
1742 if (nla_put(msg, i + 1, sizeof(*info), info))
1743 goto nla_put_failure;
1745 nla_nest_end(msg, nested);
1747 state->split_start++;
1750 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1751 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1752 rdev->wiphy.max_num_csa_counters))
1753 goto nla_put_failure;
1755 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1756 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1757 goto nla_put_failure;
1759 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1760 sizeof(rdev->wiphy.ext_features),
1761 rdev->wiphy.ext_features))
1762 goto nla_put_failure;
1765 state->split_start = 0;
1769 genlmsg_end(msg, hdr);
1773 genlmsg_cancel(msg, hdr);
1777 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1778 struct netlink_callback *cb,
1779 struct nl80211_dump_wiphy_state *state)
1781 struct nlattr **tb = nl80211_fam.attrbuf;
1782 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1783 tb, nl80211_fam.maxattr, nl80211_policy);
1784 /* ignore parse errors for backward compatibility */
1788 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1789 if (tb[NL80211_ATTR_WIPHY])
1790 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1791 if (tb[NL80211_ATTR_WDEV])
1792 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1793 if (tb[NL80211_ATTR_IFINDEX]) {
1794 struct net_device *netdev;
1795 struct cfg80211_registered_device *rdev;
1796 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1798 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1801 if (netdev->ieee80211_ptr) {
1802 rdev = wiphy_to_rdev(
1803 netdev->ieee80211_ptr->wiphy);
1804 state->filter_wiphy = rdev->wiphy_idx;
1811 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1814 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1815 struct cfg80211_registered_device *rdev;
1819 state = kzalloc(sizeof(*state), GFP_KERNEL);
1824 state->filter_wiphy = -1;
1825 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1831 cb->args[0] = (long)state;
1834 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1835 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1837 if (++idx <= state->start)
1839 if (state->filter_wiphy != -1 &&
1840 state->filter_wiphy != rdev->wiphy_idx)
1842 /* attempt to fit multiple wiphy data chunks into the skb */
1844 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1846 NETLINK_CB(cb->skb).portid,
1848 NLM_F_MULTI, state);
1851 * If sending the wiphy data didn't fit (ENOBUFS
1852 * or EMSGSIZE returned), this SKB is still
1853 * empty (so it's not too big because another
1854 * wiphy dataset is already in the skb) and
1855 * we've not tried to adjust the dump allocation
1856 * yet ... then adjust the alloc size to be
1857 * bigger, and return 1 but with the empty skb.
1858 * This results in an empty message being RX'ed
1859 * in userspace, but that is ignored.
1861 * We can then retry with the larger buffer.
1863 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1864 !skb->len && !state->split &&
1865 cb->min_dump_alloc < 4096) {
1866 cb->min_dump_alloc = 4096;
1867 state->split_start = 0;
1874 } while (state->split_start > 0);
1884 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1886 kfree((void *)cb->args[0]);
1890 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1892 struct sk_buff *msg;
1893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1894 struct nl80211_dump_wiphy_state state = {};
1896 msg = nlmsg_new(4096, GFP_KERNEL);
1900 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1901 info->snd_portid, info->snd_seq, 0,
1907 return genlmsg_reply(msg, info);
1910 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1911 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1912 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1913 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1914 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1915 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1918 static int parse_txq_params(struct nlattr *tb[],
1919 struct ieee80211_txq_params *txq_params)
1923 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1924 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1925 !tb[NL80211_TXQ_ATTR_AIFS])
1928 ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1929 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1930 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1931 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1932 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1934 if (ac >= NL80211_NUM_ACS)
1936 txq_params->ac = array_index_nospec(ac, NL80211_NUM_ACS);
1940 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1943 * You can only set the channel explicitly for WDS interfaces,
1944 * all others have their channel managed via their respective
1945 * "establish a connection" command (connect, join, ...)
1947 * For AP/GO and mesh mode, the channel can be set with the
1948 * channel userspace API, but is only stored and passed to the
1949 * low-level driver when the AP starts or the mesh is joined.
1950 * This is for backward compatibility, userspace can also give
1951 * the channel in the start-ap or join-mesh commands instead.
1953 * Monitors are special as they are normally slaved to
1954 * whatever else is going on, so they have their own special
1955 * operation to set the monitor channel if possible.
1958 wdev->iftype == NL80211_IFTYPE_AP ||
1959 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1960 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1961 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1964 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1965 struct genl_info *info,
1966 struct cfg80211_chan_def *chandef)
1970 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1973 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1975 memset(chandef, 0, sizeof(*chandef));
1977 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1978 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1979 chandef->center_freq1 = control_freq;
1980 chandef->center_freq2 = 0;
1982 /* Primary channel not allowed */
1983 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1986 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1987 enum nl80211_channel_type chantype;
1989 chantype = nla_get_u32(
1990 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1993 case NL80211_CHAN_NO_HT:
1994 case NL80211_CHAN_HT20:
1995 case NL80211_CHAN_HT40PLUS:
1996 case NL80211_CHAN_HT40MINUS:
1997 cfg80211_chandef_create(chandef, chandef->chan,
2003 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2005 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2006 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2007 chandef->center_freq1 =
2009 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2010 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2011 chandef->center_freq2 =
2013 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2016 if (!cfg80211_chandef_valid(chandef))
2019 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2020 IEEE80211_CHAN_DISABLED))
2023 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2024 chandef->width == NL80211_CHAN_WIDTH_10) &&
2025 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2031 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2032 struct net_device *dev,
2033 struct genl_info *info)
2035 struct cfg80211_chan_def chandef;
2037 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2038 struct wireless_dev *wdev = NULL;
2041 wdev = dev->ieee80211_ptr;
2042 if (!nl80211_can_set_dev_channel(wdev))
2045 iftype = wdev->iftype;
2047 result = nl80211_parse_chandef(rdev, info, &chandef);
2052 case NL80211_IFTYPE_AP:
2053 case NL80211_IFTYPE_P2P_GO:
2054 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2059 if (wdev->beacon_interval) {
2060 if (!dev || !rdev->ops->set_ap_chanwidth ||
2061 !(rdev->wiphy.features &
2062 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2067 /* Only allow dynamic channel width changes */
2068 if (chandef.chan != wdev->preset_chandef.chan) {
2072 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2076 wdev->preset_chandef = chandef;
2079 case NL80211_IFTYPE_MESH_POINT:
2080 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2082 case NL80211_IFTYPE_MONITOR:
2083 result = cfg80211_set_monitor_channel(rdev, &chandef);
2092 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2095 struct net_device *netdev = info->user_ptr[1];
2097 return __nl80211_set_channel(rdev, netdev, info);
2100 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2103 struct net_device *dev = info->user_ptr[1];
2104 struct wireless_dev *wdev = dev->ieee80211_ptr;
2107 if (!info->attrs[NL80211_ATTR_MAC])
2110 if (netif_running(dev))
2113 if (!rdev->ops->set_wds_peer)
2116 if (wdev->iftype != NL80211_IFTYPE_WDS)
2119 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2120 return rdev_set_wds_peer(rdev, dev, bssid);
2124 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2126 struct cfg80211_registered_device *rdev;
2127 struct net_device *netdev = NULL;
2128 struct wireless_dev *wdev;
2129 int result = 0, rem_txq_params = 0;
2130 struct nlattr *nl_txq_params;
2132 u8 retry_short = 0, retry_long = 0;
2133 u32 frag_threshold = 0, rts_threshold = 0;
2134 u8 coverage_class = 0;
2139 * Try to find the wiphy and netdev. Normally this
2140 * function shouldn't need the netdev, but this is
2141 * done for backward compatibility -- previously
2142 * setting the channel was done per wiphy, but now
2143 * it is per netdev. Previous userland like hostapd
2144 * also passed a netdev to set_wiphy, so that it is
2145 * possible to let that go to the right netdev!
2148 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2149 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2151 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2152 if (netdev && netdev->ieee80211_ptr)
2153 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2159 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2162 return PTR_ERR(rdev);
2167 wdev = netdev->ieee80211_ptr;
2170 * end workaround code, by now the rdev is available
2171 * and locked, and wdev may or may not be NULL.
2174 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2175 result = cfg80211_dev_rename(
2176 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2181 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2182 struct ieee80211_txq_params txq_params;
2183 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2185 if (!rdev->ops->set_txq_params)
2191 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2192 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2195 if (!netif_running(netdev))
2198 nla_for_each_nested(nl_txq_params,
2199 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2201 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2202 nla_data(nl_txq_params),
2203 nla_len(nl_txq_params),
2207 result = parse_txq_params(tb, &txq_params);
2211 result = rdev_set_txq_params(rdev, netdev,
2218 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2219 result = __nl80211_set_channel(
2221 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2227 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2228 struct wireless_dev *txp_wdev = wdev;
2229 enum nl80211_tx_power_setting type;
2232 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2235 if (!rdev->ops->set_tx_power)
2238 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2239 type = nla_get_u32(info->attrs[idx]);
2241 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2242 (type != NL80211_TX_POWER_AUTOMATIC))
2245 if (type != NL80211_TX_POWER_AUTOMATIC) {
2246 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2247 mbm = nla_get_u32(info->attrs[idx]);
2250 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2255 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2256 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2258 if ((!rdev->wiphy.available_antennas_tx &&
2259 !rdev->wiphy.available_antennas_rx) ||
2260 !rdev->ops->set_antenna)
2263 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2264 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2266 /* reject antenna configurations which don't match the
2267 * available antenna masks, except for the "all" mask */
2268 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2269 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2272 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2273 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2275 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2282 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2283 retry_short = nla_get_u8(
2284 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2285 if (retry_short == 0)
2288 changed |= WIPHY_PARAM_RETRY_SHORT;
2291 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2292 retry_long = nla_get_u8(
2293 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2294 if (retry_long == 0)
2297 changed |= WIPHY_PARAM_RETRY_LONG;
2300 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2301 frag_threshold = nla_get_u32(
2302 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2303 if (frag_threshold < 256)
2306 if (frag_threshold != (u32) -1) {
2308 * Fragments (apart from the last one) are required to
2309 * have even length. Make the fragmentation code
2310 * simpler by stripping LSB should someone try to use
2311 * odd threshold value.
2313 frag_threshold &= ~0x1;
2315 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2318 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2319 rts_threshold = nla_get_u32(
2320 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2321 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2324 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2325 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2328 coverage_class = nla_get_u8(
2329 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2330 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2333 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2334 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2337 changed |= WIPHY_PARAM_DYN_ACK;
2341 u8 old_retry_short, old_retry_long;
2342 u32 old_frag_threshold, old_rts_threshold;
2343 u8 old_coverage_class;
2345 if (!rdev->ops->set_wiphy_params)
2348 old_retry_short = rdev->wiphy.retry_short;
2349 old_retry_long = rdev->wiphy.retry_long;
2350 old_frag_threshold = rdev->wiphy.frag_threshold;
2351 old_rts_threshold = rdev->wiphy.rts_threshold;
2352 old_coverage_class = rdev->wiphy.coverage_class;
2354 if (changed & WIPHY_PARAM_RETRY_SHORT)
2355 rdev->wiphy.retry_short = retry_short;
2356 if (changed & WIPHY_PARAM_RETRY_LONG)
2357 rdev->wiphy.retry_long = retry_long;
2358 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2359 rdev->wiphy.frag_threshold = frag_threshold;
2360 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2361 rdev->wiphy.rts_threshold = rts_threshold;
2362 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2363 rdev->wiphy.coverage_class = coverage_class;
2365 result = rdev_set_wiphy_params(rdev, changed);
2367 rdev->wiphy.retry_short = old_retry_short;
2368 rdev->wiphy.retry_long = old_retry_long;
2369 rdev->wiphy.frag_threshold = old_frag_threshold;
2370 rdev->wiphy.rts_threshold = old_rts_threshold;
2371 rdev->wiphy.coverage_class = old_coverage_class;
2378 static inline u64 wdev_id(struct wireless_dev *wdev)
2380 return (u64)wdev->identifier |
2381 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2384 static int nl80211_send_chandef(struct sk_buff *msg,
2385 const struct cfg80211_chan_def *chandef)
2387 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2390 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2391 chandef->chan->center_freq))
2393 switch (chandef->width) {
2394 case NL80211_CHAN_WIDTH_20_NOHT:
2395 case NL80211_CHAN_WIDTH_20:
2396 case NL80211_CHAN_WIDTH_40:
2397 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2398 cfg80211_get_chandef_type(chandef)))
2404 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2406 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2408 if (chandef->center_freq2 &&
2409 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2414 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2415 struct cfg80211_registered_device *rdev,
2416 struct wireless_dev *wdev, bool removal)
2418 struct net_device *dev = wdev->netdev;
2419 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2423 cmd = NL80211_CMD_DEL_INTERFACE;
2425 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2430 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2431 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2432 goto nla_put_failure;
2434 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2435 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2436 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2437 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2438 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2439 rdev->devlist_generation ^
2440 (cfg80211_rdev_list_generation << 2)))
2441 goto nla_put_failure;
2443 if (rdev->ops->get_channel) {
2445 struct cfg80211_chan_def chandef = {};
2447 ret = rdev_get_channel(rdev, wdev, &chandef);
2449 if (nl80211_send_chandef(msg, &chandef))
2450 goto nla_put_failure;
2454 if (rdev->ops->get_tx_power) {
2457 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2459 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2461 goto nla_put_failure;
2464 if (wdev->ssid_len) {
2465 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2466 goto nla_put_failure;
2469 genlmsg_end(msg, hdr);
2473 genlmsg_cancel(msg, hdr);
2477 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2481 int wp_start = cb->args[0];
2482 int if_start = cb->args[1];
2483 struct cfg80211_registered_device *rdev;
2484 struct wireless_dev *wdev;
2487 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2488 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2490 if (wp_idx < wp_start) {
2496 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2497 if (if_idx < if_start) {
2501 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2502 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2503 rdev, wdev, false) < 0) {
2514 cb->args[0] = wp_idx;
2515 cb->args[1] = if_idx;
2520 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2522 struct sk_buff *msg;
2523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2524 struct wireless_dev *wdev = info->user_ptr[1];
2526 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2530 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2531 rdev, wdev, false) < 0) {
2536 return genlmsg_reply(msg, info);
2539 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2540 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2541 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2542 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2543 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2544 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2545 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2548 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2550 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2558 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2559 nla, mntr_flags_policy))
2562 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2564 *mntrflags |= (1<<flag);
2569 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2570 struct net_device *netdev, u8 use_4addr,
2571 enum nl80211_iftype iftype)
2574 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2580 case NL80211_IFTYPE_AP_VLAN:
2581 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2584 case NL80211_IFTYPE_STATION:
2585 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2595 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2598 struct vif_params params;
2600 enum nl80211_iftype otype, ntype;
2601 struct net_device *dev = info->user_ptr[1];
2602 u32 _flags, *flags = NULL;
2603 bool change = false;
2605 memset(¶ms, 0, sizeof(params));
2607 otype = ntype = dev->ieee80211_ptr->iftype;
2609 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2610 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2613 if (ntype > NL80211_IFTYPE_MAX)
2617 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2618 struct wireless_dev *wdev = dev->ieee80211_ptr;
2620 if (ntype != NL80211_IFTYPE_MESH_POINT)
2622 if (netif_running(dev))
2626 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2627 IEEE80211_MAX_MESH_ID_LEN);
2628 wdev->mesh_id_up_len =
2629 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2630 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2631 wdev->mesh_id_up_len);
2635 if (info->attrs[NL80211_ATTR_4ADDR]) {
2636 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2638 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2642 params.use_4addr = -1;
2645 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2646 if (ntype != NL80211_IFTYPE_MONITOR)
2648 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2657 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2658 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2662 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2666 if (!err && params.use_4addr != -1)
2667 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2672 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2675 struct vif_params params;
2676 struct wireless_dev *wdev;
2677 struct sk_buff *msg, *event;
2679 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2682 /* to avoid failing a new interface creation due to pending removal */
2683 cfg80211_destroy_ifaces(rdev);
2685 memset(¶ms, 0, sizeof(params));
2687 if (!info->attrs[NL80211_ATTR_IFNAME])
2690 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2691 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2692 if (type > NL80211_IFTYPE_MAX)
2696 if (!rdev->ops->add_virtual_intf ||
2697 !(rdev->wiphy.interface_modes & (1 << type)))
2700 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2701 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2702 info->attrs[NL80211_ATTR_MAC]) {
2703 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2705 if (!is_valid_ether_addr(params.macaddr))
2706 return -EADDRNOTAVAIL;
2709 if (info->attrs[NL80211_ATTR_4ADDR]) {
2710 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2711 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2716 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2717 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2720 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2721 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2728 wdev = rdev_add_virtual_intf(rdev,
2729 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2730 NET_NAME_USER, type, err ? NULL : &flags,
2732 if (WARN_ON(!wdev)) {
2735 } else if (IS_ERR(wdev)) {
2737 return PTR_ERR(wdev);
2740 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2741 wdev->owner_nlportid = info->snd_portid;
2744 case NL80211_IFTYPE_MESH_POINT:
2745 if (!info->attrs[NL80211_ATTR_MESH_ID])
2748 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2749 IEEE80211_MAX_MESH_ID_LEN);
2750 wdev->mesh_id_up_len =
2751 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2752 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2753 wdev->mesh_id_up_len);
2756 case NL80211_IFTYPE_P2P_DEVICE:
2758 * P2P Device doesn't have a netdev, so doesn't go
2759 * through the netdev notifier and must be added here
2761 mutex_init(&wdev->mtx);
2762 INIT_LIST_HEAD(&wdev->event_list);
2763 spin_lock_init(&wdev->event_lock);
2764 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2765 spin_lock_init(&wdev->mgmt_registrations_lock);
2767 wdev->identifier = ++rdev->wdev_id;
2768 list_add_rcu(&wdev->list, &rdev->wdev_list);
2769 rdev->devlist_generation++;
2775 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2776 rdev, wdev, false) < 0) {
2781 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2783 if (nl80211_send_iface(event, 0, 0, 0,
2784 rdev, wdev, false) < 0) {
2789 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2790 event, 0, NL80211_MCGRP_CONFIG,
2795 return genlmsg_reply(msg, info);
2798 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2801 struct wireless_dev *wdev = info->user_ptr[1];
2802 struct sk_buff *msg;
2805 if (!rdev->ops->del_virtual_intf)
2808 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2809 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2815 * If we remove a wireless device without a netdev then clear
2816 * user_ptr[1] so that nl80211_post_doit won't dereference it
2817 * to check if it needs to do dev_put(). Otherwise it crashes
2818 * since the wdev has been freed, unlike with a netdev where
2819 * we need the dev_put() for the netdev to really be freed.
2822 info->user_ptr[1] = NULL;
2824 status = rdev_del_virtual_intf(rdev, wdev);
2825 if (status >= 0 && msg)
2826 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2827 msg, 0, NL80211_MCGRP_CONFIG,
2835 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2838 struct net_device *dev = info->user_ptr[1];
2841 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2844 if (!rdev->ops->set_noack_map)
2847 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2849 return rdev_set_noack_map(rdev, dev, noack_map);
2852 struct get_key_cookie {
2853 struct sk_buff *msg;
2858 static void get_key_callback(void *c, struct key_params *params)
2861 struct get_key_cookie *cookie = c;
2864 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2865 params->key_len, params->key)) ||
2867 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2868 params->seq_len, params->seq)) ||
2870 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2872 goto nla_put_failure;
2874 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2876 goto nla_put_failure;
2879 nla_put(cookie->msg, NL80211_KEY_DATA,
2880 params->key_len, params->key)) ||
2882 nla_put(cookie->msg, NL80211_KEY_SEQ,
2883 params->seq_len, params->seq)) ||
2885 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2887 goto nla_put_failure;
2889 if (nla_put_u8(cookie->msg, NL80211_KEY_IDX, cookie->idx))
2890 goto nla_put_failure;
2892 nla_nest_end(cookie->msg, key);
2899 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2903 struct net_device *dev = info->user_ptr[1];
2905 const u8 *mac_addr = NULL;
2907 struct get_key_cookie cookie = {
2911 struct sk_buff *msg;
2913 if (info->attrs[NL80211_ATTR_KEY_IDX])
2914 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2919 if (info->attrs[NL80211_ATTR_MAC])
2920 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2922 pairwise = !!mac_addr;
2923 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2924 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2925 if (kt >= NUM_NL80211_KEYTYPES)
2927 if (kt != NL80211_KEYTYPE_GROUP &&
2928 kt != NL80211_KEYTYPE_PAIRWISE)
2930 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2933 if (!rdev->ops->get_key)
2936 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2939 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2943 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2944 NL80211_CMD_NEW_KEY);
2946 goto nla_put_failure;
2949 cookie.idx = key_idx;
2951 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2952 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2953 goto nla_put_failure;
2955 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2956 goto nla_put_failure;
2958 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2965 goto nla_put_failure;
2967 genlmsg_end(msg, hdr);
2968 return genlmsg_reply(msg, info);
2977 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2980 struct key_parse key;
2982 struct net_device *dev = info->user_ptr[1];
2984 err = nl80211_parse_key(info, &key);
2991 /* only support setting default key */
2992 if (!key.def && !key.defmgmt)
2995 wdev_lock(dev->ieee80211_ptr);
2998 if (!rdev->ops->set_default_key) {
3003 err = nl80211_key_allowed(dev->ieee80211_ptr);
3007 err = rdev_set_default_key(rdev, dev, key.idx,
3008 key.def_uni, key.def_multi);
3013 #ifdef CONFIG_CFG80211_WEXT
3014 dev->ieee80211_ptr->wext.default_key = key.idx;
3017 if (key.def_uni || !key.def_multi) {
3022 if (!rdev->ops->set_default_mgmt_key) {
3027 err = nl80211_key_allowed(dev->ieee80211_ptr);
3031 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3035 #ifdef CONFIG_CFG80211_WEXT
3036 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3041 wdev_unlock(dev->ieee80211_ptr);
3046 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3050 struct net_device *dev = info->user_ptr[1];
3051 struct key_parse key;
3052 const u8 *mac_addr = NULL;
3054 err = nl80211_parse_key(info, &key);
3061 if (info->attrs[NL80211_ATTR_MAC])
3062 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3064 if (key.type == -1) {
3066 key.type = NL80211_KEYTYPE_PAIRWISE;
3068 key.type = NL80211_KEYTYPE_GROUP;
3072 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3073 key.type != NL80211_KEYTYPE_GROUP)
3076 if (!rdev->ops->add_key)
3079 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3080 key.type == NL80211_KEYTYPE_PAIRWISE,
3084 wdev_lock(dev->ieee80211_ptr);
3085 err = nl80211_key_allowed(dev->ieee80211_ptr);
3087 err = rdev_add_key(rdev, dev, key.idx,
3088 key.type == NL80211_KEYTYPE_PAIRWISE,
3090 wdev_unlock(dev->ieee80211_ptr);
3095 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3097 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3099 struct net_device *dev = info->user_ptr[1];
3100 u8 *mac_addr = NULL;
3101 struct key_parse key;
3103 err = nl80211_parse_key(info, &key);
3110 if (info->attrs[NL80211_ATTR_MAC])
3111 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3113 if (key.type == -1) {
3115 key.type = NL80211_KEYTYPE_PAIRWISE;
3117 key.type = NL80211_KEYTYPE_GROUP;
3121 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3122 key.type != NL80211_KEYTYPE_GROUP)
3125 if (!rdev->ops->del_key)
3128 wdev_lock(dev->ieee80211_ptr);
3129 err = nl80211_key_allowed(dev->ieee80211_ptr);
3131 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3132 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3136 err = rdev_del_key(rdev, dev, key.idx,
3137 key.type == NL80211_KEYTYPE_PAIRWISE,
3140 #ifdef CONFIG_CFG80211_WEXT
3142 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3143 dev->ieee80211_ptr->wext.default_key = -1;
3144 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3145 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3148 wdev_unlock(dev->ieee80211_ptr);
3153 /* This function returns an error or the number of nested attributes */
3154 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3156 struct nlattr *attr;
3157 int n_entries = 0, tmp;
3159 nla_for_each_nested(attr, nl_attr, tmp) {
3160 if (nla_len(attr) != ETH_ALEN)
3170 * This function parses ACL information and allocates memory for ACL data.
3171 * On successful return, the calling function is responsible to free the
3172 * ACL buffer returned by this function.
3174 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3175 struct genl_info *info)
3177 enum nl80211_acl_policy acl_policy;
3178 struct nlattr *attr;
3179 struct cfg80211_acl_data *acl;
3180 int i = 0, n_entries, tmp;
3182 if (!wiphy->max_acl_mac_addrs)
3183 return ERR_PTR(-EOPNOTSUPP);
3185 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3186 return ERR_PTR(-EINVAL);
3188 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3189 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3190 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3191 return ERR_PTR(-EINVAL);
3193 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3194 return ERR_PTR(-EINVAL);
3196 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3198 return ERR_PTR(n_entries);
3200 if (n_entries > wiphy->max_acl_mac_addrs)
3201 return ERR_PTR(-ENOTSUPP);
3203 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3206 return ERR_PTR(-ENOMEM);
3208 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3209 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3213 acl->n_acl_entries = n_entries;
3214 acl->acl_policy = acl_policy;
3219 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3221 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3222 struct net_device *dev = info->user_ptr[1];
3223 struct cfg80211_acl_data *acl;
3226 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3227 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3230 if (!dev->ieee80211_ptr->beacon_interval)
3233 acl = parse_acl_data(&rdev->wiphy, info);
3235 return PTR_ERR(acl);
3237 err = rdev_set_mac_acl(rdev, dev, acl);
3244 static int nl80211_parse_beacon(struct nlattr *attrs[],
3245 struct cfg80211_beacon_data *bcn)
3247 bool haveinfo = false;
3249 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3250 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3251 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3252 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3255 memset(bcn, 0, sizeof(*bcn));
3257 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3258 int ret = validate_beacon_head(attrs[NL80211_ATTR_BEACON_HEAD]);
3263 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3264 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3270 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3271 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3272 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3279 if (attrs[NL80211_ATTR_IE]) {
3280 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3281 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3284 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3285 bcn->proberesp_ies =
3286 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3287 bcn->proberesp_ies_len =
3288 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3291 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3292 bcn->assocresp_ies =
3293 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3294 bcn->assocresp_ies_len =
3295 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3298 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3299 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3300 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3306 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3307 struct cfg80211_ap_settings *params)
3309 struct wireless_dev *wdev;
3312 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3313 if (wdev->iftype != NL80211_IFTYPE_AP &&
3314 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3317 if (!wdev->preset_chandef.chan)
3320 params->chandef = wdev->preset_chandef;
3328 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3329 enum nl80211_auth_type auth_type,
3330 enum nl80211_commands cmd)
3332 if (auth_type > NL80211_AUTHTYPE_MAX)
3336 case NL80211_CMD_AUTHENTICATE:
3337 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3338 auth_type == NL80211_AUTHTYPE_SAE)
3341 case NL80211_CMD_CONNECT:
3342 case NL80211_CMD_START_AP:
3343 /* SAE not supported yet */
3344 if (auth_type == NL80211_AUTHTYPE_SAE)
3352 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3355 struct net_device *dev = info->user_ptr[1];
3356 struct wireless_dev *wdev = dev->ieee80211_ptr;
3357 struct cfg80211_ap_settings params;
3360 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3361 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3364 if (!rdev->ops->start_ap)
3367 if (wdev->beacon_interval)
3370 memset(¶ms, 0, sizeof(params));
3372 /* these are required for START_AP */
3373 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3374 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3375 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3378 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3382 params.beacon_interval =
3383 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3384 params.dtim_period =
3385 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3387 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3392 * In theory, some of these attributes should be required here
3393 * but since they were not used when the command was originally
3394 * added, keep them optional for old user space programs to let
3395 * them continue to work with drivers that do not need the
3396 * additional information -- drivers must check!
3398 if (info->attrs[NL80211_ATTR_SSID]) {
3399 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3401 nla_len(info->attrs[NL80211_ATTR_SSID]);
3402 if (params.ssid_len == 0 ||
3403 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3407 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3408 params.hidden_ssid = nla_get_u32(
3409 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3410 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3411 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3412 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3416 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3418 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3419 params.auth_type = nla_get_u32(
3420 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3421 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3422 NL80211_CMD_START_AP))
3425 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3427 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3428 NL80211_MAX_NR_CIPHER_SUITES);
3432 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3433 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3435 params.inactivity_timeout = nla_get_u16(
3436 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3439 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3440 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3442 params.p2p_ctwindow =
3443 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3444 if (params.p2p_ctwindow > 127)
3446 if (params.p2p_ctwindow != 0 &&
3447 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3451 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3454 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3456 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3459 params.p2p_opp_ps = tmp;
3460 if (params.p2p_opp_ps != 0 &&
3461 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3465 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3466 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3469 } else if (wdev->preset_chandef.chan) {
3470 params.chandef = wdev->preset_chandef;
3471 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3474 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3478 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3480 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3481 switch (params.smps_mode) {
3482 case NL80211_SMPS_OFF:
3484 case NL80211_SMPS_STATIC:
3485 if (!(rdev->wiphy.features &
3486 NL80211_FEATURE_STATIC_SMPS))
3489 case NL80211_SMPS_DYNAMIC:
3490 if (!(rdev->wiphy.features &
3491 NL80211_FEATURE_DYNAMIC_SMPS))
3498 params.smps_mode = NL80211_SMPS_OFF;
3501 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3502 params.acl = parse_acl_data(&rdev->wiphy, info);
3503 if (IS_ERR(params.acl))
3504 return PTR_ERR(params.acl);
3508 err = rdev_start_ap(rdev, dev, ¶ms);
3510 wdev->preset_chandef = params.chandef;
3511 wdev->beacon_interval = params.beacon_interval;
3512 wdev->chandef = params.chandef;
3513 wdev->ssid_len = params.ssid_len;
3514 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3523 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3526 struct net_device *dev = info->user_ptr[1];
3527 struct wireless_dev *wdev = dev->ieee80211_ptr;
3528 struct cfg80211_beacon_data params;
3531 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3532 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3535 if (!rdev->ops->change_beacon)
3538 if (!wdev->beacon_interval)
3541 err = nl80211_parse_beacon(info->attrs, ¶ms);
3546 err = rdev_change_beacon(rdev, dev, ¶ms);
3552 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3555 struct net_device *dev = info->user_ptr[1];
3557 return cfg80211_stop_ap(rdev, dev, false);
3560 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3561 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3562 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3563 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3564 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3565 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3566 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3569 static int parse_station_flags(struct genl_info *info,
3570 enum nl80211_iftype iftype,
3571 struct station_parameters *params)
3573 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3578 * Try parsing the new attribute first so userspace
3579 * can specify both for older kernels.
3581 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3583 struct nl80211_sta_flag_update *sta_flags;
3585 sta_flags = nla_data(nla);
3586 params->sta_flags_mask = sta_flags->mask;
3587 params->sta_flags_set = sta_flags->set;
3588 params->sta_flags_set &= params->sta_flags_mask;
3589 if ((params->sta_flags_mask |
3590 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3595 /* if present, parse the old attribute */
3597 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3601 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3602 nla, sta_flags_policy))
3606 * Only allow certain flags for interface types so that
3607 * other attributes are silently ignored. Remember that
3608 * this is backward compatibility code with old userspace
3609 * and shouldn't be hit in other cases anyway.
3612 case NL80211_IFTYPE_AP:
3613 case NL80211_IFTYPE_AP_VLAN:
3614 case NL80211_IFTYPE_P2P_GO:
3615 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3616 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3617 BIT(NL80211_STA_FLAG_WME) |
3618 BIT(NL80211_STA_FLAG_MFP);
3620 case NL80211_IFTYPE_P2P_CLIENT:
3621 case NL80211_IFTYPE_STATION:
3622 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3623 BIT(NL80211_STA_FLAG_TDLS_PEER);
3625 case NL80211_IFTYPE_MESH_POINT:
3626 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3627 BIT(NL80211_STA_FLAG_MFP) |
3628 BIT(NL80211_STA_FLAG_AUTHORIZED);
3634 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3636 params->sta_flags_set |= (1<<flag);
3638 /* no longer support new API additions in old API */
3639 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3647 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3650 struct nlattr *rate;
3653 enum nl80211_attrs rate_flg;
3655 rate = nla_nest_start(msg, attr);
3659 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3660 bitrate = cfg80211_calculate_bitrate(info);
3661 /* report 16-bit bitrate only if we can */
3662 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3664 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3666 if (bitrate_compat > 0 &&
3667 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3671 case RATE_INFO_BW_5:
3672 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3674 case RATE_INFO_BW_10:
3675 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3680 case RATE_INFO_BW_20:
3683 case RATE_INFO_BW_40:
3684 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3686 case RATE_INFO_BW_80:
3687 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3689 case RATE_INFO_BW_160:
3690 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3694 if (rate_flg && nla_put_flag(msg, rate_flg))
3697 if (info->flags & RATE_INFO_FLAGS_MCS) {
3698 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3700 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3701 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3703 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3704 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3706 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3708 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3709 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3713 nla_nest_end(msg, rate);
3717 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3726 attr = nla_nest_start(msg, id);
3730 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3731 if (!(mask & BIT(i)))
3734 if (nla_put_u8(msg, i, signal[i]))
3738 nla_nest_end(msg, attr);
3743 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3745 struct cfg80211_registered_device *rdev,
3746 struct net_device *dev,
3747 const u8 *mac_addr, struct station_info *sinfo)
3750 struct nlattr *sinfoattr, *bss_param;
3752 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3756 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3757 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3758 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3759 goto nla_put_failure;
3761 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3763 goto nla_put_failure;
3765 #define PUT_SINFO(attr, memb, type) do { \
3766 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3767 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3769 goto nla_put_failure; \
3772 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3773 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3775 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3776 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
3777 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3778 (u32)sinfo->rx_bytes))
3779 goto nla_put_failure;
3781 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3782 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
3783 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3784 (u32)sinfo->tx_bytes))
3785 goto nla_put_failure;
3787 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3788 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3789 PUT_SINFO(LLID, llid, u16);
3790 PUT_SINFO(PLID, plid, u16);
3791 PUT_SINFO(PLINK_STATE, plink_state, u8);
3793 switch (rdev->wiphy.signal_type) {
3794 case CFG80211_SIGNAL_TYPE_MBM:
3795 PUT_SINFO(SIGNAL, signal, u8);
3796 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
3801 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
3802 if (!nl80211_put_signal(msg, sinfo->chains,
3803 sinfo->chain_signal,
3804 NL80211_STA_INFO_CHAIN_SIGNAL))
3805 goto nla_put_failure;
3807 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
3808 if (!nl80211_put_signal(msg, sinfo->chains,
3809 sinfo->chain_signal_avg,
3810 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3811 goto nla_put_failure;
3813 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
3814 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3815 NL80211_STA_INFO_TX_BITRATE))
3816 goto nla_put_failure;
3818 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
3819 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3820 NL80211_STA_INFO_RX_BITRATE))
3821 goto nla_put_failure;
3824 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3825 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3826 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3827 PUT_SINFO(TX_FAILED, tx_failed, u32);
3828 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3829 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3830 PUT_SINFO(LOCAL_PM, local_pm, u32);
3831 PUT_SINFO(PEER_PM, peer_pm, u32);
3832 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3834 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
3835 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3837 goto nla_put_failure;
3839 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3840 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3841 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3842 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3843 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3844 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3845 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3846 sinfo->bss_param.dtim_period) ||
3847 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3848 sinfo->bss_param.beacon_interval))
3849 goto nla_put_failure;
3851 nla_nest_end(msg, bss_param);
3853 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
3854 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3855 sizeof(struct nl80211_sta_flag_update),
3857 goto nla_put_failure;
3859 PUT_SINFO(T_OFFSET, t_offset, u64);
3860 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
3861 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3862 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
3866 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3867 struct nlattr *tidsattr;
3870 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3872 goto nla_put_failure;
3874 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3875 struct cfg80211_tid_stats *tidstats;
3876 struct nlattr *tidattr;
3878 tidstats = &sinfo->pertid[tid];
3880 if (!tidstats->filled)
3883 tidattr = nla_nest_start(msg, tid + 1);
3885 goto nla_put_failure;
3887 #define PUT_TIDVAL(attr, memb, type) do { \
3888 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3889 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3891 goto nla_put_failure; \
3894 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3895 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3896 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3897 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3900 nla_nest_end(msg, tidattr);
3903 nla_nest_end(msg, tidsattr);
3906 nla_nest_end(msg, sinfoattr);
3908 if (sinfo->assoc_req_ies_len &&
3909 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3910 sinfo->assoc_req_ies))
3911 goto nla_put_failure;
3913 genlmsg_end(msg, hdr);
3917 genlmsg_cancel(msg, hdr);
3921 static int nl80211_dump_station(struct sk_buff *skb,
3922 struct netlink_callback *cb)
3924 struct station_info sinfo;
3925 struct cfg80211_registered_device *rdev;
3926 struct wireless_dev *wdev;
3927 u8 mac_addr[ETH_ALEN];
3928 int sta_idx = cb->args[2];
3932 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3936 if (!wdev->netdev) {
3941 if (!rdev->ops->dump_station) {
3947 memset(&sinfo, 0, sizeof(sinfo));
3948 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3955 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
3956 NETLINK_CB(cb->skb).portid,
3957 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3958 rdev, wdev->netdev, mac_addr,
3967 cb->args[2] = sta_idx;
3975 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3978 struct net_device *dev = info->user_ptr[1];
3979 struct station_info sinfo;
3980 struct sk_buff *msg;
3981 u8 *mac_addr = NULL;
3984 memset(&sinfo, 0, sizeof(sinfo));
3986 if (!info->attrs[NL80211_ATTR_MAC])
3989 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3991 if (!rdev->ops->get_station)
3994 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3998 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4002 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4003 info->snd_portid, info->snd_seq, 0,
4004 rdev, dev, mac_addr, &sinfo) < 0) {
4009 return genlmsg_reply(msg, info);
4012 int cfg80211_check_station_change(struct wiphy *wiphy,
4013 struct station_parameters *params,
4014 enum cfg80211_station_type statype)
4016 if (params->listen_interval != -1 &&
4017 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4021 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4022 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4025 /* When you run into this, adjust the code below for the new flag */
4026 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4029 case CFG80211_STA_MESH_PEER_KERNEL:
4030 case CFG80211_STA_MESH_PEER_USER:
4032 * No ignoring the TDLS flag here -- the userspace mesh
4033 * code doesn't have the bug of including TDLS in the
4036 if (params->sta_flags_mask &
4037 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4038 BIT(NL80211_STA_FLAG_MFP) |
4039 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4042 case CFG80211_STA_TDLS_PEER_SETUP:
4043 case CFG80211_STA_TDLS_PEER_ACTIVE:
4044 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4046 /* ignore since it can't change */
4047 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4050 /* disallow mesh-specific things */
4051 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4053 if (params->local_pm)
4055 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4059 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4060 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4061 /* TDLS can't be set, ... */
4062 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4065 * ... but don't bother the driver with it. This works around
4066 * a hostapd/wpa_supplicant issue -- it always includes the
4067 * TLDS_PEER flag in the mask even for AP mode.
4069 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4072 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4073 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4074 /* reject other things that can't change */
4075 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4077 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4079 if (params->supported_rates)
4081 if (params->ext_capab || params->ht_capa || params->vht_capa)
4085 if (statype != CFG80211_STA_AP_CLIENT &&
4086 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4092 case CFG80211_STA_AP_MLME_CLIENT:
4093 /* Use this only for authorizing/unauthorizing a station */
4094 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4097 case CFG80211_STA_AP_CLIENT:
4098 case CFG80211_STA_AP_CLIENT_UNASSOC:
4099 /* accept only the listed bits */
4100 if (params->sta_flags_mask &
4101 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4102 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4103 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4104 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4105 BIT(NL80211_STA_FLAG_WME) |
4106 BIT(NL80211_STA_FLAG_MFP)))
4109 /* but authenticated/associated only if driver handles it */
4110 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4111 params->sta_flags_mask &
4112 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4113 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4116 case CFG80211_STA_IBSS:
4117 case CFG80211_STA_AP_STA:
4118 /* reject any changes other than AUTHORIZED */
4119 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4122 case CFG80211_STA_TDLS_PEER_SETUP:
4123 /* reject any changes other than AUTHORIZED or WME */
4124 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4125 BIT(NL80211_STA_FLAG_WME)))
4127 /* force (at least) rates when authorizing */
4128 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4129 !params->supported_rates)
4132 case CFG80211_STA_TDLS_PEER_ACTIVE:
4133 /* reject any changes */
4135 case CFG80211_STA_MESH_PEER_KERNEL:
4136 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4139 case CFG80211_STA_MESH_PEER_USER:
4140 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4141 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4148 EXPORT_SYMBOL(cfg80211_check_station_change);
4151 * Get vlan interface making sure it is running and on the right wiphy.
4153 static struct net_device *get_vlan(struct genl_info *info,
4154 struct cfg80211_registered_device *rdev)
4156 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4157 struct net_device *v;
4163 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4165 return ERR_PTR(-ENODEV);
4167 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4172 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4173 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4174 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4179 if (!netif_running(v)) {
4187 return ERR_PTR(ret);
4190 static const struct nla_policy
4191 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4192 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4193 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4196 static int nl80211_parse_sta_wme(struct genl_info *info,
4197 struct station_parameters *params)
4199 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4203 /* parse WME attributes if present */
4204 if (!info->attrs[NL80211_ATTR_STA_WME])
4207 nla = info->attrs[NL80211_ATTR_STA_WME];
4208 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4209 nl80211_sta_wme_policy);
4213 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4214 params->uapsd_queues = nla_get_u8(
4215 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4216 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4219 if (tb[NL80211_STA_WME_MAX_SP])
4220 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4222 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4225 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4230 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4231 struct station_parameters *params)
4233 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4234 params->supported_channels =
4235 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4236 params->supported_channels_len =
4237 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4239 * Need to include at least one (first channel, number of
4240 * channels) tuple for each subband, and must have proper
4241 * tuples for the rest of the data as well.
4243 if (params->supported_channels_len < 2)
4245 if (params->supported_channels_len % 2)
4249 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4250 params->supported_oper_classes =
4251 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4252 params->supported_oper_classes_len =
4253 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4255 * The value of the Length field of the Supported Operating
4256 * Classes element is between 2 and 253.
4258 if (params->supported_oper_classes_len < 2 ||
4259 params->supported_oper_classes_len > 253)
4265 static int nl80211_set_station_tdls(struct genl_info *info,
4266 struct station_parameters *params)
4269 /* Dummy STA entry gets updated once the peer capabilities are known */
4270 if (info->attrs[NL80211_ATTR_PEER_AID])
4271 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4272 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4274 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4275 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4277 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4279 err = nl80211_parse_sta_channel_info(info, params);
4283 return nl80211_parse_sta_wme(info, params);
4286 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4289 struct net_device *dev = info->user_ptr[1];
4290 struct station_parameters params;
4294 memset(¶ms, 0, sizeof(params));
4296 if (!rdev->ops->change_station)
4300 * AID and listen_interval properties can be set only for unassociated
4301 * station. Include these parameters here and will check them in
4302 * cfg80211_check_station_change().
4304 if (info->attrs[NL80211_ATTR_PEER_AID])
4305 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4307 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4308 params.listen_interval =
4309 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4311 params.listen_interval = -1;
4313 if (!info->attrs[NL80211_ATTR_MAC])
4316 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4318 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4319 params.supported_rates =
4320 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4321 params.supported_rates_len =
4322 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4325 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4327 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4328 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4331 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4333 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4334 params.ext_capab_len =
4335 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4338 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4341 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4342 params.plink_action =
4343 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4344 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4348 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4349 params.plink_state =
4350 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4351 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4353 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4356 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4357 enum nl80211_mesh_power_mode pm = nla_get_u32(
4358 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4360 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4361 pm > NL80211_MESH_POWER_MAX)
4364 params.local_pm = pm;
4367 /* Include parameters for TDLS peer (will check later) */
4368 err = nl80211_set_station_tdls(info, ¶ms);
4372 params.vlan = get_vlan(info, rdev);
4373 if (IS_ERR(params.vlan))
4374 return PTR_ERR(params.vlan);
4376 switch (dev->ieee80211_ptr->iftype) {
4377 case NL80211_IFTYPE_AP:
4378 case NL80211_IFTYPE_AP_VLAN:
4379 case NL80211_IFTYPE_P2P_GO:
4380 case NL80211_IFTYPE_P2P_CLIENT:
4381 case NL80211_IFTYPE_STATION:
4382 case NL80211_IFTYPE_ADHOC:
4383 case NL80211_IFTYPE_MESH_POINT:
4390 /* driver will call cfg80211_check_station_change() */
4391 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4395 dev_put(params.vlan);
4400 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4404 struct net_device *dev = info->user_ptr[1];
4405 struct station_parameters params;
4406 u8 *mac_addr = NULL;
4408 memset(¶ms, 0, sizeof(params));
4410 if (!rdev->ops->add_station)
4413 if (!info->attrs[NL80211_ATTR_MAC])
4416 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4419 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4422 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4423 !info->attrs[NL80211_ATTR_PEER_AID])
4426 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4427 params.supported_rates =
4428 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4429 params.supported_rates_len =
4430 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4431 params.listen_interval =
4432 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4434 if (info->attrs[NL80211_ATTR_PEER_AID])
4435 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4437 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4438 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4441 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4443 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4444 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4447 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4449 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4450 params.ext_capab_len =
4451 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4454 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4456 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4458 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4460 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4462 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4463 params.opmode_notif_used = true;
4464 params.opmode_notif =
4465 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4468 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4469 params.plink_action =
4470 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4471 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4475 err = nl80211_parse_sta_channel_info(info, ¶ms);
4479 err = nl80211_parse_sta_wme(info, ¶ms);
4483 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4486 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4487 * as userspace might just pass through the capabilities from the IEs
4488 * directly, rather than enforcing this restriction and returning an
4489 * error in this case.
4491 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4492 params.ht_capa = NULL;
4493 params.vht_capa = NULL;
4496 /* When you run into this, adjust the code below for the new flag */
4497 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4499 switch (dev->ieee80211_ptr->iftype) {
4500 case NL80211_IFTYPE_AP:
4501 case NL80211_IFTYPE_AP_VLAN:
4502 case NL80211_IFTYPE_P2P_GO:
4503 /* ignore WME attributes if iface/sta is not capable */
4504 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4505 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4506 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4508 /* TDLS peers cannot be added */
4509 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4510 info->attrs[NL80211_ATTR_PEER_AID])
4512 /* but don't bother the driver with it */
4513 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4515 /* allow authenticated/associated only if driver handles it */
4516 if (!(rdev->wiphy.features &
4517 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4518 params.sta_flags_mask &
4519 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4520 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4523 /* must be last in here for error handling */
4524 params.vlan = get_vlan(info, rdev);
4525 if (IS_ERR(params.vlan))
4526 return PTR_ERR(params.vlan);
4528 case NL80211_IFTYPE_MESH_POINT:
4529 /* ignore uAPSD data */
4530 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4532 /* associated is disallowed */
4533 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4535 /* TDLS peers cannot be added */
4536 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4537 info->attrs[NL80211_ATTR_PEER_AID])
4540 case NL80211_IFTYPE_STATION:
4541 case NL80211_IFTYPE_P2P_CLIENT:
4542 /* ignore uAPSD data */
4543 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4545 /* these are disallowed */
4546 if (params.sta_flags_mask &
4547 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4548 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4550 /* Only TDLS peers can be added */
4551 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4553 /* Can only add if TDLS ... */
4554 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4556 /* ... with external setup is supported */
4557 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4560 * Older wpa_supplicant versions always mark the TDLS peer
4561 * as authorized, but it shouldn't yet be.
4563 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4569 /* be aware of params.vlan when changing code here */
4571 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4574 dev_put(params.vlan);
4578 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4581 struct net_device *dev = info->user_ptr[1];
4582 struct station_del_parameters params;
4584 memset(¶ms, 0, sizeof(params));
4586 if (info->attrs[NL80211_ATTR_MAC])
4587 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4589 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4590 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4591 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4592 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4595 if (!rdev->ops->del_station)
4598 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4600 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4601 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4602 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4605 /* Default to Deauthentication frame */
4606 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4609 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4610 params.reason_code =
4611 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4612 if (params.reason_code == 0)
4613 return -EINVAL; /* 0 is reserved */
4615 /* Default to reason code 2 */
4616 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4619 return rdev_del_station(rdev, dev, ¶ms);
4622 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4623 int flags, struct net_device *dev,
4624 u8 *dst, u8 *next_hop,
4625 struct mpath_info *pinfo)
4628 struct nlattr *pinfoattr;
4630 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4634 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4635 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4636 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4637 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4638 goto nla_put_failure;
4640 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4642 goto nla_put_failure;
4643 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4644 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4646 goto nla_put_failure;
4647 if (((pinfo->filled & MPATH_INFO_SN) &&
4648 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4649 ((pinfo->filled & MPATH_INFO_METRIC) &&
4650 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4652 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4653 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4655 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4656 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4658 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4659 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4660 pinfo->discovery_timeout)) ||
4661 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4662 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4663 pinfo->discovery_retries)))
4664 goto nla_put_failure;
4666 nla_nest_end(msg, pinfoattr);
4668 genlmsg_end(msg, hdr);
4672 genlmsg_cancel(msg, hdr);
4676 static int nl80211_dump_mpath(struct sk_buff *skb,
4677 struct netlink_callback *cb)
4679 struct mpath_info pinfo;
4680 struct cfg80211_registered_device *rdev;
4681 struct wireless_dev *wdev;
4683 u8 next_hop[ETH_ALEN];
4684 int path_idx = cb->args[2];
4688 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4692 if (!rdev->ops->dump_mpath) {
4697 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4703 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4710 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4711 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4712 wdev->netdev, dst, next_hop,
4721 cb->args[2] = path_idx;
4728 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4732 struct net_device *dev = info->user_ptr[1];
4733 struct mpath_info pinfo;
4734 struct sk_buff *msg;
4736 u8 next_hop[ETH_ALEN];
4738 memset(&pinfo, 0, sizeof(pinfo));
4740 if (!info->attrs[NL80211_ATTR_MAC])
4743 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4745 if (!rdev->ops->get_mpath)
4748 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4751 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4759 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4760 dev, dst, next_hop, &pinfo) < 0) {
4765 return genlmsg_reply(msg, info);
4768 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4771 struct net_device *dev = info->user_ptr[1];
4773 u8 *next_hop = NULL;
4775 if (!info->attrs[NL80211_ATTR_MAC])
4778 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4781 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4782 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4784 if (!rdev->ops->change_mpath)
4787 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4790 return rdev_change_mpath(rdev, dev, dst, next_hop);
4793 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4796 struct net_device *dev = info->user_ptr[1];
4798 u8 *next_hop = NULL;
4800 if (!info->attrs[NL80211_ATTR_MAC])
4803 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4806 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4807 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4809 if (!rdev->ops->add_mpath)
4812 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4815 return rdev_add_mpath(rdev, dev, dst, next_hop);
4818 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4821 struct net_device *dev = info->user_ptr[1];
4824 if (info->attrs[NL80211_ATTR_MAC])
4825 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4827 if (!rdev->ops->del_mpath)
4830 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4833 return rdev_del_mpath(rdev, dev, dst);
4836 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4840 struct net_device *dev = info->user_ptr[1];
4841 struct mpath_info pinfo;
4842 struct sk_buff *msg;
4846 memset(&pinfo, 0, sizeof(pinfo));
4848 if (!info->attrs[NL80211_ATTR_MAC])
4851 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4853 if (!rdev->ops->get_mpp)
4856 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4859 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4863 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4867 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4868 dev, dst, mpp, &pinfo) < 0) {
4873 return genlmsg_reply(msg, info);
4876 static int nl80211_dump_mpp(struct sk_buff *skb,
4877 struct netlink_callback *cb)
4879 struct mpath_info pinfo;
4880 struct cfg80211_registered_device *rdev;
4881 struct wireless_dev *wdev;
4884 int path_idx = cb->args[2];
4888 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4892 if (!rdev->ops->dump_mpp) {
4897 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4903 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4910 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4911 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4912 wdev->netdev, dst, mpp,
4920 cb->args[2] = path_idx;
4927 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4930 struct net_device *dev = info->user_ptr[1];
4931 struct wireless_dev *wdev = dev->ieee80211_ptr;
4932 struct bss_parameters params;
4935 memset(¶ms, 0, sizeof(params));
4936 /* default to not changing parameters */
4937 params.use_cts_prot = -1;
4938 params.use_short_preamble = -1;
4939 params.use_short_slot_time = -1;
4940 params.ap_isolate = -1;
4941 params.ht_opmode = -1;
4942 params.p2p_ctwindow = -1;
4943 params.p2p_opp_ps = -1;
4945 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4946 params.use_cts_prot =
4947 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4948 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4949 params.use_short_preamble =
4950 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4951 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4952 params.use_short_slot_time =
4953 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4954 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4955 params.basic_rates =
4956 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4957 params.basic_rates_len =
4958 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4960 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4961 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4962 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4964 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4966 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4967 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4969 params.p2p_ctwindow =
4970 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4971 if (params.p2p_ctwindow < 0)
4973 if (params.p2p_ctwindow != 0 &&
4974 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4978 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4981 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4983 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4986 params.p2p_opp_ps = tmp;
4987 if (params.p2p_opp_ps &&
4988 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4992 if (!rdev->ops->change_bss)
4995 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4996 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5000 err = rdev_change_bss(rdev, dev, ¶ms);
5006 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5010 enum nl80211_user_reg_hint_type user_reg_hint_type;
5015 * You should only get this when cfg80211 hasn't yet initialized
5016 * completely when built-in to the kernel right between the time
5017 * window between nl80211_init() and regulatory_init(), if that is
5020 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5021 return -EINPROGRESS;
5023 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5024 user_reg_hint_type =
5025 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5027 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5029 switch (user_reg_hint_type) {
5030 case NL80211_USER_REG_HINT_USER:
5031 case NL80211_USER_REG_HINT_CELL_BASE:
5032 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5035 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5036 return regulatory_hint_user(data, user_reg_hint_type);
5037 case NL80211_USER_REG_HINT_INDOOR:
5038 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5039 owner_nlportid = info->snd_portid;
5040 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5046 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5052 static int nl80211_get_mesh_config(struct sk_buff *skb,
5053 struct genl_info *info)
5055 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5056 struct net_device *dev = info->user_ptr[1];
5057 struct wireless_dev *wdev = dev->ieee80211_ptr;
5058 struct mesh_config cur_params;
5061 struct nlattr *pinfoattr;
5062 struct sk_buff *msg;
5064 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5067 if (!rdev->ops->get_mesh_config)
5071 /* If not connected, get default parameters */
5072 if (!wdev->mesh_id_len)
5073 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5075 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5081 /* Draw up a netlink message to send back */
5082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5085 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5086 NL80211_CMD_GET_MESH_CONFIG);
5089 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5091 goto nla_put_failure;
5092 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5093 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5094 cur_params.dot11MeshRetryTimeout) ||
5095 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5096 cur_params.dot11MeshConfirmTimeout) ||
5097 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5098 cur_params.dot11MeshHoldingTimeout) ||
5099 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5100 cur_params.dot11MeshMaxPeerLinks) ||
5101 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5102 cur_params.dot11MeshMaxRetries) ||
5103 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5104 cur_params.dot11MeshTTL) ||
5105 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5106 cur_params.element_ttl) ||
5107 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5108 cur_params.auto_open_plinks) ||
5109 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5110 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5111 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5112 cur_params.dot11MeshHWMPmaxPREQretries) ||
5113 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5114 cur_params.path_refresh_time) ||
5115 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5116 cur_params.min_discovery_timeout) ||
5117 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5118 cur_params.dot11MeshHWMPactivePathTimeout) ||
5119 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5120 cur_params.dot11MeshHWMPpreqMinInterval) ||
5121 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5122 cur_params.dot11MeshHWMPperrMinInterval) ||
5123 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5124 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5125 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5126 cur_params.dot11MeshHWMPRootMode) ||
5127 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5128 cur_params.dot11MeshHWMPRannInterval) ||
5129 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5130 cur_params.dot11MeshGateAnnouncementProtocol) ||
5131 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5132 cur_params.dot11MeshForwarding) ||
5133 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5134 cur_params.rssi_threshold) ||
5135 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5136 cur_params.ht_opmode) ||
5137 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5138 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5139 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5140 cur_params.dot11MeshHWMProotInterval) ||
5141 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5142 cur_params.dot11MeshHWMPconfirmationInterval) ||
5143 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5144 cur_params.power_mode) ||
5145 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5146 cur_params.dot11MeshAwakeWindowDuration) ||
5147 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5148 cur_params.plink_timeout))
5149 goto nla_put_failure;
5150 nla_nest_end(msg, pinfoattr);
5151 genlmsg_end(msg, hdr);
5152 return genlmsg_reply(msg, info);
5155 genlmsg_cancel(msg, hdr);
5161 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5162 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5163 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5164 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5165 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5166 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5167 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5168 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5169 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5170 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5171 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5172 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5173 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5174 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5175 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5176 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5177 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5178 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5179 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5180 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5181 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5182 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5183 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5184 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5185 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5186 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5187 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5188 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5189 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5192 static const struct nla_policy
5193 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5194 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5195 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5196 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5197 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5198 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5199 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5200 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5201 .len = IEEE80211_MAX_DATA_LEN },
5202 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5205 static int nl80211_parse_mesh_config(struct genl_info *info,
5206 struct mesh_config *cfg,
5209 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5212 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5215 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5217 cfg->param = fn(tb[attr]); \
5218 mask |= (1 << (attr - 1)); \
5223 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5225 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5226 info->attrs[NL80211_ATTR_MESH_CONFIG],
5227 nl80211_meshconf_params_policy))
5230 /* This makes sure that there aren't more than 32 mesh config
5231 * parameters (otherwise our bitfield scheme would not work.) */
5232 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5234 /* Fill in the params struct */
5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5236 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5239 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5242 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5244 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5245 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5247 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5248 mask, NL80211_MESHCONF_MAX_RETRIES,
5250 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5251 mask, NL80211_MESHCONF_TTL, nla_get_u8);
5252 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5253 mask, NL80211_MESHCONF_ELEMENT_TTL,
5255 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5256 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5258 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5260 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5262 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5263 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5265 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5266 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5268 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5269 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5271 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5273 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5275 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5277 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5279 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5281 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5283 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5284 dot11MeshHWMPnetDiameterTraversalTime,
5286 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5288 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5289 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5291 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5292 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5294 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5295 dot11MeshGateAnnouncementProtocol, 0, 1,
5296 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5298 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5299 mask, NL80211_MESHCONF_FORWARDING,
5301 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5302 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5304 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5305 mask, NL80211_MESHCONF_HT_OPMODE,
5307 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5309 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5311 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5312 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5314 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5315 dot11MeshHWMPconfirmationInterval,
5317 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5319 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5320 NL80211_MESH_POWER_ACTIVE,
5321 NL80211_MESH_POWER_MAX,
5322 mask, NL80211_MESHCONF_POWER_MODE,
5324 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5326 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5327 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5328 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5335 #undef FILL_IN_MESH_PARAM_IF_SET
5338 static int nl80211_parse_mesh_setup(struct genl_info *info,
5339 struct mesh_setup *setup)
5341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5342 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5344 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5346 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5347 info->attrs[NL80211_ATTR_MESH_SETUP],
5348 nl80211_mesh_setup_params_policy))
5351 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5352 setup->sync_method =
5353 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5354 IEEE80211_SYNC_METHOD_VENDOR :
5355 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5357 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5358 setup->path_sel_proto =
5359 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5360 IEEE80211_PATH_PROTOCOL_VENDOR :
5361 IEEE80211_PATH_PROTOCOL_HWMP;
5363 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5364 setup->path_metric =
5365 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5366 IEEE80211_PATH_METRIC_VENDOR :
5367 IEEE80211_PATH_METRIC_AIRTIME;
5370 if (tb[NL80211_MESH_SETUP_IE]) {
5371 struct nlattr *ieattr =
5372 tb[NL80211_MESH_SETUP_IE];
5373 if (!is_valid_ie_attr(ieattr))
5375 setup->ie = nla_data(ieattr);
5376 setup->ie_len = nla_len(ieattr);
5378 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5379 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5381 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5382 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5383 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5384 if (setup->is_secure)
5385 setup->user_mpm = true;
5387 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5388 if (!setup->user_mpm)
5391 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5397 static int nl80211_update_mesh_config(struct sk_buff *skb,
5398 struct genl_info *info)
5400 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5401 struct net_device *dev = info->user_ptr[1];
5402 struct wireless_dev *wdev = dev->ieee80211_ptr;
5403 struct mesh_config cfg;
5407 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5410 if (!rdev->ops->update_mesh_config)
5413 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5418 if (!wdev->mesh_id_len)
5422 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5429 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5430 struct sk_buff *msg)
5432 struct nlattr *nl_reg_rules;
5435 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5436 (regdom->dfs_region &&
5437 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5438 goto nla_put_failure;
5440 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5442 goto nla_put_failure;
5444 for (i = 0; i < regdom->n_reg_rules; i++) {
5445 struct nlattr *nl_reg_rule;
5446 const struct ieee80211_reg_rule *reg_rule;
5447 const struct ieee80211_freq_range *freq_range;
5448 const struct ieee80211_power_rule *power_rule;
5449 unsigned int max_bandwidth_khz;
5451 reg_rule = ®dom->reg_rules[i];
5452 freq_range = ®_rule->freq_range;
5453 power_rule = ®_rule->power_rule;
5455 nl_reg_rule = nla_nest_start(msg, i);
5457 goto nla_put_failure;
5459 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5460 if (!max_bandwidth_khz)
5461 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5464 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5466 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5467 freq_range->start_freq_khz) ||
5468 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5469 freq_range->end_freq_khz) ||
5470 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5471 max_bandwidth_khz) ||
5472 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5473 power_rule->max_antenna_gain) ||
5474 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5475 power_rule->max_eirp) ||
5476 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5477 reg_rule->dfs_cac_ms))
5478 goto nla_put_failure;
5480 nla_nest_end(msg, nl_reg_rule);
5483 nla_nest_end(msg, nl_reg_rules);
5490 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5492 const struct ieee80211_regdomain *regdom = NULL;
5493 struct cfg80211_registered_device *rdev;
5494 struct wiphy *wiphy = NULL;
5495 struct sk_buff *msg;
5498 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5502 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5503 NL80211_CMD_GET_REG);
5507 if (info->attrs[NL80211_ATTR_WIPHY]) {
5510 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5513 return PTR_ERR(rdev);
5516 wiphy = &rdev->wiphy;
5517 self_managed = wiphy->regulatory_flags &
5518 REGULATORY_WIPHY_SELF_MANAGED;
5519 regdom = get_wiphy_regdom(wiphy);
5521 /* a self-managed-reg device must have a private regdom */
5522 if (WARN_ON(!regdom && self_managed)) {
5528 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5529 goto nla_put_failure;
5532 if (!wiphy && reg_last_request_cell_base() &&
5533 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5534 NL80211_USER_REG_HINT_CELL_BASE))
5535 goto nla_put_failure;
5540 regdom = rcu_dereference(cfg80211_regdomain);
5542 if (nl80211_put_regdom(regdom, msg))
5543 goto nla_put_failure_rcu;
5547 genlmsg_end(msg, hdr);
5548 return genlmsg_reply(msg, info);
5550 nla_put_failure_rcu:
5553 genlmsg_cancel(msg, hdr);
5559 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5560 u32 seq, int flags, struct wiphy *wiphy,
5561 const struct ieee80211_regdomain *regdom)
5563 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5564 NL80211_CMD_GET_REG);
5569 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5571 if (nl80211_put_regdom(regdom, msg))
5572 goto nla_put_failure;
5574 if (!wiphy && reg_last_request_cell_base() &&
5575 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5576 NL80211_USER_REG_HINT_CELL_BASE))
5577 goto nla_put_failure;
5580 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5581 goto nla_put_failure;
5583 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5584 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5585 goto nla_put_failure;
5587 genlmsg_end(msg, hdr);
5591 genlmsg_cancel(msg, hdr);
5595 static int nl80211_get_reg_dump(struct sk_buff *skb,
5596 struct netlink_callback *cb)
5598 const struct ieee80211_regdomain *regdom = NULL;
5599 struct cfg80211_registered_device *rdev;
5600 int err, reg_idx, start = cb->args[2];
5604 if (cfg80211_regdomain && start == 0) {
5605 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5607 rtnl_dereference(cfg80211_regdomain));
5612 /* the global regdom is idx 0 */
5614 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5615 regdom = get_wiphy_regdom(&rdev->wiphy);
5619 if (++reg_idx <= start)
5622 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5623 NLM_F_MULTI, &rdev->wiphy, regdom);
5630 cb->args[2] = reg_idx;
5637 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
5638 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5639 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5640 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5641 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5642 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5643 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5644 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5645 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5648 static int parse_reg_rule(struct nlattr *tb[],
5649 struct ieee80211_reg_rule *reg_rule)
5651 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
5652 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
5654 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5656 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5658 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5660 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5662 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5665 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5667 freq_range->start_freq_khz =
5668 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5669 freq_range->end_freq_khz =
5670 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5671 freq_range->max_bandwidth_khz =
5672 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5674 power_rule->max_eirp =
5675 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5677 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5678 power_rule->max_antenna_gain =
5679 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5681 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5682 reg_rule->dfs_cac_ms =
5683 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5688 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5690 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5691 struct nlattr *nl_reg_rule;
5693 int rem_reg_rules, r;
5694 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5695 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5696 struct ieee80211_regdomain *rd;
5698 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5701 if (!info->attrs[NL80211_ATTR_REG_RULES])
5704 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5706 if (info->attrs[NL80211_ATTR_DFS_REGION])
5707 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5709 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5712 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5716 if (!reg_is_valid_request(alpha2))
5719 size_of_regd = sizeof(struct ieee80211_regdomain) +
5720 num_rules * sizeof(struct ieee80211_reg_rule);
5722 rd = kzalloc(size_of_regd, GFP_KERNEL);
5726 rd->n_reg_rules = num_rules;
5727 rd->alpha2[0] = alpha2[0];
5728 rd->alpha2[1] = alpha2[1];
5731 * Disable DFS master mode if the DFS region was
5732 * not supported or known on this kernel.
5734 if (reg_supported_dfs_region(dfs_region))
5735 rd->dfs_region = dfs_region;
5737 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5739 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5740 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5744 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5750 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5756 r = set_regdom(rd, REGD_SOURCE_CRDA);
5757 /* set_regdom took ownership */
5764 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
5766 static int validate_scan_freqs(struct nlattr *freqs)
5768 struct nlattr *attr1, *attr2;
5769 int n_channels = 0, tmp1, tmp2;
5771 nla_for_each_nested(attr1, freqs, tmp1)
5772 if (nla_len(attr1) != sizeof(u32))
5775 nla_for_each_nested(attr1, freqs, tmp1) {
5778 * Some hardware has a limited channel list for
5779 * scanning, and it is pretty much nonsensical
5780 * to scan for a channel twice, so disallow that
5781 * and don't require drivers to check that the
5782 * channel list they get isn't longer than what
5783 * they can scan, as long as they can scan all
5784 * the channels they registered at once.
5786 nla_for_each_nested(attr2, freqs, tmp2)
5787 if (attr1 != attr2 &&
5788 nla_get_u32(attr1) == nla_get_u32(attr2))
5795 static int nl80211_parse_random_mac(struct nlattr **attrs,
5796 u8 *mac_addr, u8 *mac_addr_mask)
5800 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5801 eth_zero_addr(mac_addr);
5802 eth_zero_addr(mac_addr_mask);
5804 mac_addr_mask[0] = 0x3;
5809 /* need both or none */
5810 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5813 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5814 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5816 /* don't allow or configure an mcast address */
5817 if (!is_multicast_ether_addr(mac_addr_mask) ||
5818 is_multicast_ether_addr(mac_addr))
5822 * allow users to pass a MAC address that has bits set outside
5823 * of the mask, but don't bother drivers with having to deal
5826 for (i = 0; i < ETH_ALEN; i++)
5827 mac_addr[i] &= mac_addr_mask[i];
5832 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5835 struct wireless_dev *wdev = info->user_ptr[1];
5836 struct cfg80211_scan_request *request;
5837 struct nlattr *attr;
5838 struct wiphy *wiphy;
5839 int err, tmp, n_ssids = 0, n_channels, i;
5842 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5845 wiphy = &rdev->wiphy;
5847 if (!rdev->ops->scan)
5850 if (rdev->scan_req || rdev->scan_msg) {
5855 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5856 n_channels = validate_scan_freqs(
5857 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5863 n_channels = ieee80211_get_num_supported_channels(wiphy);
5866 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5867 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5870 if (n_ssids > wiphy->max_scan_ssids) {
5875 if (info->attrs[NL80211_ATTR_IE])
5876 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5880 if (ie_len > wiphy->max_scan_ie_len) {
5885 request = kzalloc(sizeof(*request)
5886 + sizeof(*request->ssids) * n_ssids
5887 + sizeof(*request->channels) * n_channels
5888 + ie_len, GFP_KERNEL);
5895 request->ssids = (void *)&request->channels[n_channels];
5896 request->n_ssids = n_ssids;
5899 request->ie = (void *)(request->ssids + n_ssids);
5901 request->ie = (void *)(request->channels + n_channels);
5905 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5906 /* user specified, bail out if channel not found */
5907 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5908 struct ieee80211_channel *chan;
5910 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5917 /* ignore disabled channels */
5918 if (chan->flags & IEEE80211_CHAN_DISABLED)
5921 request->channels[i] = chan;
5925 enum ieee80211_band band;
5928 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5930 if (!wiphy->bands[band])
5932 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5933 struct ieee80211_channel *chan;
5935 chan = &wiphy->bands[band]->channels[j];
5937 if (chan->flags & IEEE80211_CHAN_DISABLED)
5940 request->channels[i] = chan;
5951 request->n_channels = i;
5955 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5956 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5960 request->ssids[i].ssid_len = nla_len(attr);
5961 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5966 if (info->attrs[NL80211_ATTR_IE]) {
5967 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5968 memcpy((void *)request->ie,
5969 nla_data(info->attrs[NL80211_ATTR_IE]),
5973 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5974 if (wiphy->bands[i])
5976 (1 << wiphy->bands[i]->n_bitrates) - 1;
5978 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5979 nla_for_each_nested(attr,
5980 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5982 enum ieee80211_band band = nla_type(attr);
5984 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5989 if (!wiphy->bands[band])
5992 err = ieee80211_get_ratemask(wiphy->bands[band],
5995 &request->rates[band]);
6001 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
6002 request->flags = nla_get_u32(
6003 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
6004 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6005 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6010 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6011 if (!(wiphy->features &
6012 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6017 if (wdev->current_bss) {
6022 err = nl80211_parse_random_mac(info->attrs,
6024 request->mac_addr_mask);
6031 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6033 request->wdev = wdev;
6034 request->wiphy = &rdev->wiphy;
6035 request->scan_start = jiffies;
6037 rdev->scan_req = request;
6038 err = rdev_scan(rdev, request);
6041 nl80211_send_scan_start(rdev, wdev);
6043 dev_hold(wdev->netdev);
6046 rdev->scan_req = NULL;
6055 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6056 struct cfg80211_sched_scan_request *request,
6057 struct nlattr **attrs)
6059 int tmp, err, i = 0;
6060 struct nlattr *attr;
6062 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6066 * If scan plans are not specified,
6067 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6068 * case one scan plan will be set with the specified scan
6069 * interval and infinite number of iterations.
6071 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6074 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6078 request->scan_plans[0].interval =
6079 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6080 if (!request->scan_plans[0].interval)
6083 if (request->scan_plans[0].interval >
6084 wiphy->max_sched_scan_plan_interval)
6085 request->scan_plans[0].interval =
6086 wiphy->max_sched_scan_plan_interval;
6091 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6092 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6094 if (WARN_ON(i >= n_plans))
6097 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6098 nla_data(attr), nla_len(attr),
6099 nl80211_plan_policy);
6103 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6106 request->scan_plans[i].interval =
6107 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6108 if (!request->scan_plans[i].interval ||
6109 request->scan_plans[i].interval >
6110 wiphy->max_sched_scan_plan_interval)
6113 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6114 request->scan_plans[i].iterations =
6115 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6116 if (!request->scan_plans[i].iterations ||
6117 (request->scan_plans[i].iterations >
6118 wiphy->max_sched_scan_plan_iterations))
6120 } else if (i < n_plans - 1) {
6122 * All scan plans but the last one must specify
6123 * a finite number of iterations
6132 * The last scan plan must not specify the number of
6133 * iterations, it is supposed to run infinitely
6135 if (request->scan_plans[n_plans - 1].iterations)
6141 static struct cfg80211_sched_scan_request *
6142 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6143 struct nlattr **attrs)
6145 struct cfg80211_sched_scan_request *request;
6146 struct nlattr *attr;
6147 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6148 enum ieee80211_band band;
6150 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
6151 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
6153 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6154 return ERR_PTR(-EINVAL);
6156 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6157 n_channels = validate_scan_freqs(
6158 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6160 return ERR_PTR(-EINVAL);
6162 n_channels = ieee80211_get_num_supported_channels(wiphy);
6165 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6166 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6170 if (n_ssids > wiphy->max_sched_scan_ssids)
6171 return ERR_PTR(-EINVAL);
6174 * First, count the number of 'real' matchsets. Due to an issue with
6175 * the old implementation, matchsets containing only the RSSI attribute
6176 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6177 * RSSI for all matchsets, rather than their own matchset for reporting
6178 * all APs with a strong RSSI. This is needed to be compatible with
6179 * older userspace that treated a matchset with only the RSSI as the
6180 * global RSSI for all other matchsets - if there are other matchsets.
6182 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6183 nla_for_each_nested(attr,
6184 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6186 struct nlattr *rssi;
6188 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6189 nla_data(attr), nla_len(attr),
6190 nl80211_match_policy);
6192 return ERR_PTR(err);
6193 /* add other standalone attributes here */
6194 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6198 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6200 default_match_rssi = nla_get_s32(rssi);
6204 /* However, if there's no other matchset, add the RSSI one */
6205 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6208 if (n_match_sets > wiphy->max_match_sets)
6209 return ERR_PTR(-EINVAL);
6211 if (attrs[NL80211_ATTR_IE])
6212 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6216 if (ie_len > wiphy->max_sched_scan_ie_len)
6217 return ERR_PTR(-EINVAL);
6219 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6221 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6222 * each scan plan already specifies its own interval
6224 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6225 return ERR_PTR(-EINVAL);
6227 nla_for_each_nested(attr,
6228 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6232 * The scan interval attribute is kept for backward
6233 * compatibility. If no scan plans are specified and sched scan
6234 * interval is specified, one scan plan will be set with this
6235 * scan interval and infinite number of iterations.
6237 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6238 return ERR_PTR(-EINVAL);
6243 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6244 return ERR_PTR(-EINVAL);
6246 request = kzalloc(sizeof(*request)
6247 + sizeof(*request->ssids) * n_ssids
6248 + sizeof(*request->match_sets) * n_match_sets
6249 + sizeof(*request->scan_plans) * n_plans
6250 + sizeof(*request->channels) * n_channels
6251 + ie_len, GFP_KERNEL);
6253 return ERR_PTR(-ENOMEM);
6256 request->ssids = (void *)&request->channels[n_channels];
6257 request->n_ssids = n_ssids;
6260 request->ie = (void *)(request->ssids + n_ssids);
6262 request->ie = (void *)(request->channels + n_channels);
6267 request->match_sets = (void *)(request->ie + ie_len);
6269 request->match_sets =
6270 (void *)(request->ssids + n_ssids);
6272 request->match_sets =
6273 (void *)(request->channels + n_channels);
6275 request->n_match_sets = n_match_sets;
6278 request->scan_plans = (void *)(request->match_sets +
6280 else if (request->ie)
6281 request->scan_plans = (void *)(request->ie + ie_len);
6283 request->scan_plans = (void *)(request->ssids + n_ssids);
6285 request->scan_plans = (void *)(request->channels + n_channels);
6287 request->n_scan_plans = n_plans;
6290 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6291 /* user specified, bail out if channel not found */
6292 nla_for_each_nested(attr,
6293 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
6295 struct ieee80211_channel *chan;
6297 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6304 /* ignore disabled channels */
6305 if (chan->flags & IEEE80211_CHAN_DISABLED)
6308 request->channels[i] = chan;
6313 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6315 if (!wiphy->bands[band])
6317 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6318 struct ieee80211_channel *chan;
6320 chan = &wiphy->bands[band]->channels[j];
6322 if (chan->flags & IEEE80211_CHAN_DISABLED)
6325 request->channels[i] = chan;
6336 request->n_channels = i;
6340 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6342 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6346 request->ssids[i].ssid_len = nla_len(attr);
6347 memcpy(request->ssids[i].ssid, nla_data(attr),
6354 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6355 nla_for_each_nested(attr,
6356 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6358 struct nlattr *ssid, *rssi;
6360 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6361 nla_data(attr), nla_len(attr),
6362 nl80211_match_policy);
6365 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
6367 if (WARN_ON(i >= n_match_sets)) {
6368 /* this indicates a programming error,
6369 * the loop above should have verified
6376 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6380 memcpy(request->match_sets[i].ssid.ssid,
6381 nla_data(ssid), nla_len(ssid));
6382 request->match_sets[i].ssid.ssid_len =
6384 /* special attribute - old implemenation w/a */
6385 request->match_sets[i].rssi_thold =
6387 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6389 request->match_sets[i].rssi_thold =
6395 /* there was no other matchset, so the RSSI one is alone */
6396 if (i == 0 && n_match_sets)
6397 request->match_sets[0].rssi_thold = default_match_rssi;
6399 request->min_rssi_thold = INT_MAX;
6400 for (i = 0; i < n_match_sets; i++)
6401 request->min_rssi_thold =
6402 min(request->match_sets[i].rssi_thold,
6403 request->min_rssi_thold);
6405 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6409 request->ie_len = ie_len;
6410 memcpy((void *)request->ie,
6411 nla_data(attrs[NL80211_ATTR_IE]),
6415 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6416 request->flags = nla_get_u32(
6417 attrs[NL80211_ATTR_SCAN_FLAGS]);
6418 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6419 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6424 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6425 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6427 if (!wdev) /* must be net-detect */
6428 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6430 if (!(wiphy->features & flg)) {
6435 if (wdev && wdev->current_bss) {
6440 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6441 request->mac_addr_mask);
6447 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6449 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6451 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6455 request->scan_start = jiffies;
6461 return ERR_PTR(err);
6464 static int nl80211_start_sched_scan(struct sk_buff *skb,
6465 struct genl_info *info)
6467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6468 struct net_device *dev = info->user_ptr[1];
6469 struct wireless_dev *wdev = dev->ieee80211_ptr;
6470 struct cfg80211_sched_scan_request *sched_scan_req;
6473 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6474 !rdev->ops->sched_scan_start)
6477 if (rdev->sched_scan_req)
6478 return -EINPROGRESS;
6480 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6483 err = PTR_ERR_OR_ZERO(sched_scan_req);
6487 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
6491 sched_scan_req->dev = dev;
6492 sched_scan_req->wiphy = &rdev->wiphy;
6494 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6495 sched_scan_req->owner_nlportid = info->snd_portid;
6497 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
6499 nl80211_send_sched_scan(rdev, dev,
6500 NL80211_CMD_START_SCHED_SCAN);
6504 kfree(sched_scan_req);
6509 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6510 struct genl_info *info)
6512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6514 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6515 !rdev->ops->sched_scan_stop)
6518 return __cfg80211_stop_sched_scan(rdev, false);
6521 static int nl80211_start_radar_detection(struct sk_buff *skb,
6522 struct genl_info *info)
6524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6525 struct net_device *dev = info->user_ptr[1];
6526 struct wireless_dev *wdev = dev->ieee80211_ptr;
6527 struct cfg80211_chan_def chandef;
6528 enum nl80211_dfs_regions dfs_region;
6529 unsigned int cac_time_ms;
6532 dfs_region = reg_get_dfs_region(wdev->wiphy);
6533 if (dfs_region == NL80211_DFS_UNSET)
6536 err = nl80211_parse_chandef(rdev, info, &chandef);
6540 if (netif_carrier_ok(dev))
6543 if (wdev->cac_started)
6546 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6554 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6557 if (!rdev->ops->start_radar_detection)
6560 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6561 if (WARN_ON(!cac_time_ms))
6562 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6564 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6567 wdev->chandef = chandef;
6568 wdev->cac_started = true;
6569 wdev->cac_start_time = jiffies;
6570 wdev->cac_time_ms = cac_time_ms;
6575 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6578 struct net_device *dev = info->user_ptr[1];
6579 struct wireless_dev *wdev = dev->ieee80211_ptr;
6580 struct cfg80211_csa_settings params;
6581 /* csa_attrs is defined static to avoid waste of stack size - this
6582 * function is called under RTNL lock, so this should not be a problem.
6584 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6586 bool need_new_beacon = false;
6590 if (!rdev->ops->channel_switch ||
6591 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6594 switch (dev->ieee80211_ptr->iftype) {
6595 case NL80211_IFTYPE_AP:
6596 case NL80211_IFTYPE_P2P_GO:
6597 need_new_beacon = true;
6599 /* useless if AP is not running */
6600 if (!wdev->beacon_interval)
6603 case NL80211_IFTYPE_ADHOC:
6604 if (!wdev->ssid_len)
6607 case NL80211_IFTYPE_MESH_POINT:
6608 if (!wdev->mesh_id_len)
6615 memset(¶ms, 0, sizeof(params));
6617 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6618 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6621 /* only important for AP, IBSS and mesh create IEs internally */
6622 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6625 /* Even though the attribute is u32, the specification says
6626 * u8, so let's make sure we don't overflow.
6628 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6632 params.count = cs_count;
6634 if (!need_new_beacon)
6637 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6641 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6642 info->attrs[NL80211_ATTR_CSA_IES],
6647 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6651 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6654 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6655 if (!len || (len % sizeof(u16)))
6658 params.n_counter_offsets_beacon = len / sizeof(u16);
6659 if (rdev->wiphy.max_num_csa_counters &&
6660 (params.n_counter_offsets_beacon >
6661 rdev->wiphy.max_num_csa_counters))
6664 params.counter_offsets_beacon =
6665 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6667 /* sanity checks - counters should fit and be the same */
6668 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6669 u16 offset = params.counter_offsets_beacon[i];
6671 if (offset >= params.beacon_csa.tail_len)
6674 if (params.beacon_csa.tail[offset] != params.count)
6678 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6679 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6680 if (!len || (len % sizeof(u16)))
6683 params.n_counter_offsets_presp = len / sizeof(u16);
6684 if (rdev->wiphy.max_num_csa_counters &&
6685 (params.n_counter_offsets_presp >
6686 rdev->wiphy.max_num_csa_counters))
6689 params.counter_offsets_presp =
6690 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6692 /* sanity checks - counters should fit and be the same */
6693 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6694 u16 offset = params.counter_offsets_presp[i];
6696 if (offset >= params.beacon_csa.probe_resp_len)
6699 if (params.beacon_csa.probe_resp[offset] !=
6706 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6710 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
6714 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6721 params.radar_required = true;
6723 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6724 params.block_tx = true;
6727 err = rdev_channel_switch(rdev, dev, ¶ms);
6733 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6735 struct cfg80211_registered_device *rdev,
6736 struct wireless_dev *wdev,
6737 struct cfg80211_internal_bss *intbss)
6739 struct cfg80211_bss *res = &intbss->pub;
6740 const struct cfg80211_bss_ies *ies;
6744 ASSERT_WDEV_LOCK(wdev);
6746 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6747 NL80211_CMD_NEW_SCAN_RESULTS);
6751 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6753 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6754 goto nla_put_failure;
6756 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6757 goto nla_put_failure;
6758 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6759 goto nla_put_failure;
6761 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6763 goto nla_put_failure;
6764 if ((!is_zero_ether_addr(res->bssid) &&
6765 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6766 goto nla_put_failure;
6769 /* indicate whether we have probe response data or not */
6770 if (rcu_access_pointer(res->proberesp_ies) &&
6771 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6772 goto fail_unlock_rcu;
6774 /* this pointer prefers to be pointed to probe response data
6775 * but is always valid
6777 ies = rcu_dereference(res->ies);
6779 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6780 goto fail_unlock_rcu;
6781 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6782 ies->len, ies->data))
6783 goto fail_unlock_rcu;
6786 /* and this pointer is always (unless driver didn't know) beacon data */
6787 ies = rcu_dereference(res->beacon_ies);
6788 if (ies && ies->from_beacon) {
6789 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6790 goto fail_unlock_rcu;
6791 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6792 ies->len, ies->data))
6793 goto fail_unlock_rcu;
6797 if (res->beacon_interval &&
6798 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6799 goto nla_put_failure;
6800 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6801 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6802 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6803 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6804 jiffies_to_msecs(jiffies - intbss->ts)))
6805 goto nla_put_failure;
6807 if (intbss->ts_boottime &&
6808 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6809 intbss->ts_boottime))
6810 goto nla_put_failure;
6812 switch (rdev->wiphy.signal_type) {
6813 case CFG80211_SIGNAL_TYPE_MBM:
6814 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6815 goto nla_put_failure;
6817 case CFG80211_SIGNAL_TYPE_UNSPEC:
6818 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6819 goto nla_put_failure;
6825 switch (wdev->iftype) {
6826 case NL80211_IFTYPE_P2P_CLIENT:
6827 case NL80211_IFTYPE_STATION:
6828 if (intbss == wdev->current_bss &&
6829 nla_put_u32(msg, NL80211_BSS_STATUS,
6830 NL80211_BSS_STATUS_ASSOCIATED))
6831 goto nla_put_failure;
6833 case NL80211_IFTYPE_ADHOC:
6834 if (intbss == wdev->current_bss &&
6835 nla_put_u32(msg, NL80211_BSS_STATUS,
6836 NL80211_BSS_STATUS_IBSS_JOINED))
6837 goto nla_put_failure;
6843 nla_nest_end(msg, bss);
6845 genlmsg_end(msg, hdr);
6851 genlmsg_cancel(msg, hdr);
6855 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6857 struct cfg80211_registered_device *rdev;
6858 struct cfg80211_internal_bss *scan;
6859 struct wireless_dev *wdev;
6860 int start = cb->args[2], idx = 0;
6864 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6871 spin_lock_bh(&rdev->bss_lock);
6872 cfg80211_bss_expire(rdev);
6874 cb->seq = rdev->bss_generation;
6876 list_for_each_entry(scan, &rdev->bss_list, list) {
6879 if (nl80211_send_bss(skb, cb,
6880 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6881 rdev, wdev, scan) < 0) {
6887 spin_unlock_bh(&rdev->bss_lock);
6896 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6897 int flags, struct net_device *dev,
6898 bool allow_radio_stats,
6899 struct survey_info *survey)
6902 struct nlattr *infoattr;
6904 /* skip radio stats if userspace didn't request them */
6905 if (!survey->channel && !allow_radio_stats)
6908 hdr = nl80211hdr_put(msg, portid, seq, flags,
6909 NL80211_CMD_NEW_SURVEY_RESULTS);
6913 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6914 goto nla_put_failure;
6916 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6918 goto nla_put_failure;
6920 if (survey->channel &&
6921 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6922 survey->channel->center_freq))
6923 goto nla_put_failure;
6925 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6926 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6927 goto nla_put_failure;
6928 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6929 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6930 goto nla_put_failure;
6931 if ((survey->filled & SURVEY_INFO_TIME) &&
6932 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6934 goto nla_put_failure;
6935 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6936 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6938 goto nla_put_failure;
6939 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6940 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6941 survey->time_ext_busy))
6942 goto nla_put_failure;
6943 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6944 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6946 goto nla_put_failure;
6947 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6948 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6950 goto nla_put_failure;
6951 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6952 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6954 goto nla_put_failure;
6956 nla_nest_end(msg, infoattr);
6958 genlmsg_end(msg, hdr);
6962 genlmsg_cancel(msg, hdr);
6966 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
6968 struct survey_info survey;
6969 struct cfg80211_registered_device *rdev;
6970 struct wireless_dev *wdev;
6971 int survey_idx = cb->args[2];
6976 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6980 /* prepare_wdev_dump parsed the attributes */
6981 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6983 if (!wdev->netdev) {
6988 if (!rdev->ops->dump_survey) {
6994 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
7000 /* don't send disabled channels, but do send non-channel data */
7001 if (survey.channel &&
7002 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
7007 if (nl80211_send_survey(skb,
7008 NETLINK_CB(cb->skb).portid,
7009 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7010 wdev->netdev, radio_stats, &survey) < 0)
7016 cb->args[2] = survey_idx;
7023 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7025 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7026 NL80211_WPA_VERSION_2));
7029 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7032 struct net_device *dev = info->user_ptr[1];
7033 struct ieee80211_channel *chan;
7034 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7035 int err, ssid_len, ie_len = 0, sae_data_len = 0;
7036 enum nl80211_auth_type auth_type;
7037 struct key_parse key;
7038 bool local_state_change;
7040 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7043 if (!info->attrs[NL80211_ATTR_MAC])
7046 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7049 if (!info->attrs[NL80211_ATTR_SSID])
7052 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7055 err = nl80211_parse_key(info, &key);
7060 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7062 if (!key.p.key || !key.p.key_len)
7064 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7065 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7066 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7067 key.p.key_len != WLAN_KEY_LEN_WEP104))
7079 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7080 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7089 if (!rdev->ops->auth)
7092 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7093 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7096 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7097 chan = nl80211_get_valid_chan(&rdev->wiphy,
7098 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7102 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7103 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7105 if (info->attrs[NL80211_ATTR_IE]) {
7106 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7107 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7110 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7111 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
7114 if (auth_type == NL80211_AUTHTYPE_SAE &&
7115 !info->attrs[NL80211_ATTR_SAE_DATA])
7118 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7119 if (auth_type != NL80211_AUTHTYPE_SAE)
7121 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7122 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7123 /* need to include at least Auth Transaction and Status Code */
7124 if (sae_data_len < 4)
7128 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7131 * Since we no longer track auth state, ignore
7132 * requests to only change local state.
7134 if (local_state_change)
7137 wdev_lock(dev->ieee80211_ptr);
7138 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7139 ssid, ssid_len, ie, ie_len,
7140 key.p.key, key.p.key_len, key.idx,
7141 sae_data, sae_data_len);
7142 wdev_unlock(dev->ieee80211_ptr);
7146 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7147 struct genl_info *info,
7148 struct cfg80211_crypto_settings *settings,
7151 memset(settings, 0, sizeof(*settings));
7153 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7155 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7157 proto = nla_get_u16(
7158 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7159 settings->control_port_ethertype = cpu_to_be16(proto);
7160 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7163 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7164 settings->control_port_no_encrypt = true;
7166 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7168 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7172 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7173 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7174 settings->n_ciphers_pairwise = len / sizeof(u32);
7176 if (len % sizeof(u32))
7179 if (settings->n_ciphers_pairwise > cipher_limit)
7182 memcpy(settings->ciphers_pairwise, data, len);
7184 for (i = 0; i < settings->n_ciphers_pairwise; i++)
7185 if (!cfg80211_supported_cipher_suite(
7187 settings->ciphers_pairwise[i]))
7191 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7192 settings->cipher_group =
7193 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
7194 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7195 settings->cipher_group))
7199 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7200 settings->wpa_versions =
7201 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7202 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7206 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7210 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7211 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7212 settings->n_akm_suites = len / sizeof(u32);
7214 if (len % sizeof(u32))
7217 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7220 memcpy(settings->akm_suites, data, len);
7226 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7229 struct net_device *dev = info->user_ptr[1];
7230 struct ieee80211_channel *chan;
7231 struct cfg80211_assoc_request req = {};
7232 const u8 *bssid, *ssid;
7233 int err, ssid_len = 0;
7235 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7238 if (!info->attrs[NL80211_ATTR_MAC] ||
7239 !info->attrs[NL80211_ATTR_SSID] ||
7240 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7243 if (!rdev->ops->assoc)
7246 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7247 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7250 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7252 chan = nl80211_get_valid_chan(&rdev->wiphy,
7253 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7257 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7258 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7260 if (info->attrs[NL80211_ATTR_IE]) {
7261 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7262 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7265 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7266 enum nl80211_mfp mfp =
7267 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7268 if (mfp == NL80211_MFP_REQUIRED)
7270 else if (mfp != NL80211_MFP_NO)
7274 if (info->attrs[NL80211_ATTR_PREV_BSSID])
7275 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
7277 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7278 req.flags |= ASSOC_REQ_DISABLE_HT;
7280 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7281 memcpy(&req.ht_capa_mask,
7282 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7283 sizeof(req.ht_capa_mask));
7285 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7286 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7288 memcpy(&req.ht_capa,
7289 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7290 sizeof(req.ht_capa));
7293 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7294 req.flags |= ASSOC_REQ_DISABLE_VHT;
7296 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7297 memcpy(&req.vht_capa_mask,
7298 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7299 sizeof(req.vht_capa_mask));
7301 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7302 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7304 memcpy(&req.vht_capa,
7305 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7306 sizeof(req.vht_capa));
7309 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7310 if (!(rdev->wiphy.features &
7311 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7312 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7314 req.flags |= ASSOC_REQ_USE_RRM;
7317 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
7319 wdev_lock(dev->ieee80211_ptr);
7320 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7321 ssid, ssid_len, &req);
7322 wdev_unlock(dev->ieee80211_ptr);
7328 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7331 struct net_device *dev = info->user_ptr[1];
7332 const u8 *ie = NULL, *bssid;
7333 int ie_len = 0, err;
7335 bool local_state_change;
7337 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7340 if (!info->attrs[NL80211_ATTR_MAC])
7343 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7346 if (!rdev->ops->deauth)
7349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7353 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7355 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7356 if (reason_code == 0) {
7357 /* Reason Code 0 is reserved */
7361 if (info->attrs[NL80211_ATTR_IE]) {
7362 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7363 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7366 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7368 wdev_lock(dev->ieee80211_ptr);
7369 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7370 local_state_change);
7371 wdev_unlock(dev->ieee80211_ptr);
7375 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7378 struct net_device *dev = info->user_ptr[1];
7379 const u8 *ie = NULL, *bssid;
7380 int ie_len = 0, err;
7382 bool local_state_change;
7384 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7387 if (!info->attrs[NL80211_ATTR_MAC])
7390 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7393 if (!rdev->ops->disassoc)
7396 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7397 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7400 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7402 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7403 if (reason_code == 0) {
7404 /* Reason Code 0 is reserved */
7408 if (info->attrs[NL80211_ATTR_IE]) {
7409 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7410 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7413 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7415 wdev_lock(dev->ieee80211_ptr);
7416 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7417 local_state_change);
7418 wdev_unlock(dev->ieee80211_ptr);
7423 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7424 int mcast_rate[IEEE80211_NUM_BANDS],
7427 struct wiphy *wiphy = &rdev->wiphy;
7431 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7432 struct ieee80211_supported_band *sband;
7434 sband = wiphy->bands[band];
7438 for (i = 0; i < sband->n_bitrates; i++) {
7439 if (sband->bitrates[i].bitrate == rateval) {
7440 mcast_rate[band] = i + 1;
7450 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7453 struct net_device *dev = info->user_ptr[1];
7454 struct cfg80211_ibss_params ibss;
7455 struct wiphy *wiphy;
7456 struct cfg80211_cached_keys *connkeys = NULL;
7459 memset(&ibss, 0, sizeof(ibss));
7461 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7464 if (!info->attrs[NL80211_ATTR_SSID] ||
7465 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7468 ibss.beacon_interval = 100;
7470 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7471 ibss.beacon_interval =
7472 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7473 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7477 if (!rdev->ops->join_ibss)
7480 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7483 wiphy = &rdev->wiphy;
7485 if (info->attrs[NL80211_ATTR_MAC]) {
7486 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7488 if (!is_valid_ether_addr(ibss.bssid))
7491 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7492 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7494 if (info->attrs[NL80211_ATTR_IE]) {
7495 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7496 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7499 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7503 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7504 NL80211_IFTYPE_ADHOC))
7507 switch (ibss.chandef.width) {
7508 case NL80211_CHAN_WIDTH_5:
7509 case NL80211_CHAN_WIDTH_10:
7510 case NL80211_CHAN_WIDTH_20_NOHT:
7512 case NL80211_CHAN_WIDTH_20:
7513 case NL80211_CHAN_WIDTH_40:
7514 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7517 case NL80211_CHAN_WIDTH_80:
7518 case NL80211_CHAN_WIDTH_80P80:
7519 case NL80211_CHAN_WIDTH_160:
7520 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7522 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7523 NL80211_EXT_FEATURE_VHT_IBSS))
7530 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7531 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7533 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7535 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7537 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7538 struct ieee80211_supported_band *sband =
7539 wiphy->bands[ibss.chandef.chan->band];
7541 err = ieee80211_get_ratemask(sband, rates, n_rates,
7547 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7548 memcpy(&ibss.ht_capa_mask,
7549 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7550 sizeof(ibss.ht_capa_mask));
7552 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7553 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7555 memcpy(&ibss.ht_capa,
7556 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7557 sizeof(ibss.ht_capa));
7560 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7561 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7562 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7565 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7568 connkeys = nl80211_parse_connkeys(rdev,
7569 info->attrs[NL80211_ATTR_KEYS],
7571 if (IS_ERR(connkeys))
7572 return PTR_ERR(connkeys);
7574 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7582 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7584 ibss.userspace_handles_dfs =
7585 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7587 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7593 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7595 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7596 struct net_device *dev = info->user_ptr[1];
7598 if (!rdev->ops->leave_ibss)
7601 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7604 return cfg80211_leave_ibss(rdev, dev, false);
7607 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7610 struct net_device *dev = info->user_ptr[1];
7611 int mcast_rate[IEEE80211_NUM_BANDS];
7615 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7616 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7617 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
7620 if (!rdev->ops->set_mcast_rate)
7623 memset(mcast_rate, 0, sizeof(mcast_rate));
7625 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7628 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7629 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7632 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7637 static struct sk_buff *
7638 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7639 struct wireless_dev *wdev, int approxlen,
7640 u32 portid, u32 seq, enum nl80211_commands cmd,
7641 enum nl80211_attrs attr,
7642 const struct nl80211_vendor_cmd_info *info,
7645 struct sk_buff *skb;
7647 struct nlattr *data;
7649 skb = nlmsg_new(approxlen + 100, gfp);
7653 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7659 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7660 goto nla_put_failure;
7663 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7665 goto nla_put_failure;
7666 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7668 goto nla_put_failure;
7672 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7674 goto nla_put_failure;
7676 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7677 wdev->netdev->ifindex))
7678 goto nla_put_failure;
7681 data = nla_nest_start(skb, attr);
7683 ((void **)skb->cb)[0] = rdev;
7684 ((void **)skb->cb)[1] = hdr;
7685 ((void **)skb->cb)[2] = data;
7694 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7695 struct wireless_dev *wdev,
7696 enum nl80211_commands cmd,
7697 enum nl80211_attrs attr,
7698 int vendor_event_idx,
7699 int approxlen, gfp_t gfp)
7701 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7702 const struct nl80211_vendor_cmd_info *info;
7705 case NL80211_CMD_TESTMODE:
7706 if (WARN_ON(vendor_event_idx != -1))
7710 case NL80211_CMD_VENDOR:
7711 if (WARN_ON(vendor_event_idx < 0 ||
7712 vendor_event_idx >= wiphy->n_vendor_events))
7714 info = &wiphy->vendor_events[vendor_event_idx];
7721 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
7722 cmd, attr, info, gfp);
7724 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7726 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7728 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7729 void *hdr = ((void **)skb->cb)[1];
7730 struct nlattr *data = ((void **)skb->cb)[2];
7731 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7733 /* clear CB data for netlink core to own from now on */
7734 memset(skb->cb, 0, sizeof(skb->cb));
7736 nla_nest_end(skb, data);
7737 genlmsg_end(skb, hdr);
7739 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7740 mcgrp = NL80211_MCGRP_VENDOR;
7742 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7745 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7747 #ifdef CONFIG_NL80211_TESTMODE
7748 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7751 struct wireless_dev *wdev =
7752 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7755 if (!rdev->ops->testmode_cmd)
7759 err = PTR_ERR(wdev);
7763 } else if (wdev->wiphy != &rdev->wiphy) {
7767 if (!info->attrs[NL80211_ATTR_TESTDATA])
7770 rdev->cur_cmd_info = info;
7771 err = rdev_testmode_cmd(rdev, wdev,
7772 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7773 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7774 rdev->cur_cmd_info = NULL;
7779 static int nl80211_testmode_dump(struct sk_buff *skb,
7780 struct netlink_callback *cb)
7782 struct cfg80211_registered_device *rdev;
7792 * 0 is a valid index, but not valid for args[0],
7793 * so we need to offset by 1.
7795 phy_idx = cb->args[0] - 1;
7797 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7798 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7803 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7804 nl80211_fam.attrbuf);
7806 err = PTR_ERR(rdev);
7809 phy_idx = rdev->wiphy_idx;
7812 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7814 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7818 data = nla_data((void *)cb->args[1]);
7819 data_len = nla_len((void *)cb->args[1]);
7822 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7828 if (!rdev->ops->testmode_dump) {
7834 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7835 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7836 NL80211_CMD_TESTMODE);
7837 struct nlattr *tmdata;
7842 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7843 genlmsg_cancel(skb, hdr);
7847 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7849 genlmsg_cancel(skb, hdr);
7852 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7853 nla_nest_end(skb, tmdata);
7855 if (err == -ENOBUFS || err == -ENOENT) {
7856 genlmsg_cancel(skb, hdr);
7859 genlmsg_cancel(skb, hdr);
7863 genlmsg_end(skb, hdr);
7868 cb->args[0] = phy_idx + 1;
7875 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7878 struct net_device *dev = info->user_ptr[1];
7879 struct cfg80211_connect_params connect;
7880 struct wiphy *wiphy;
7881 struct cfg80211_cached_keys *connkeys = NULL;
7884 memset(&connect, 0, sizeof(connect));
7886 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7889 if (!info->attrs[NL80211_ATTR_SSID] ||
7890 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7893 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7895 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7896 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7897 NL80211_CMD_CONNECT))
7900 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7902 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7904 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7905 NL80211_MAX_NR_CIPHER_SUITES);
7909 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7910 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7913 wiphy = &rdev->wiphy;
7915 connect.bg_scan_period = -1;
7916 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7917 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7918 connect.bg_scan_period =
7919 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7922 if (info->attrs[NL80211_ATTR_MAC])
7923 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7924 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7925 connect.bssid_hint =
7926 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7927 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7928 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7930 if (info->attrs[NL80211_ATTR_IE]) {
7931 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7932 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7935 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7936 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7937 if (connect.mfp != NL80211_MFP_REQUIRED &&
7938 connect.mfp != NL80211_MFP_NO)
7941 connect.mfp = NL80211_MFP_NO;
7944 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7945 connect.channel = nl80211_get_valid_chan(
7946 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7947 if (!connect.channel)
7949 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7950 connect.channel_hint = nl80211_get_valid_chan(
7951 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7952 if (!connect.channel_hint)
7956 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7957 connkeys = nl80211_parse_connkeys(rdev,
7958 info->attrs[NL80211_ATTR_KEYS], NULL);
7959 if (IS_ERR(connkeys))
7960 return PTR_ERR(connkeys);
7963 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7964 connect.flags |= ASSOC_REQ_DISABLE_HT;
7966 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7967 memcpy(&connect.ht_capa_mask,
7968 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7969 sizeof(connect.ht_capa_mask));
7971 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7972 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7976 memcpy(&connect.ht_capa,
7977 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7978 sizeof(connect.ht_capa));
7981 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7982 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7984 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7985 memcpy(&connect.vht_capa_mask,
7986 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7987 sizeof(connect.vht_capa_mask));
7989 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7990 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7994 memcpy(&connect.vht_capa,
7995 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7996 sizeof(connect.vht_capa));
7999 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8000 if (!(rdev->wiphy.features &
8001 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
8002 !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) {
8006 connect.flags |= ASSOC_REQ_USE_RRM;
8009 wdev_lock(dev->ieee80211_ptr);
8010 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
8011 wdev_unlock(dev->ieee80211_ptr);
8017 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8020 struct net_device *dev = info->user_ptr[1];
8024 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8025 reason = WLAN_REASON_DEAUTH_LEAVING;
8027 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8032 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8033 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8036 wdev_lock(dev->ieee80211_ptr);
8037 ret = cfg80211_disconnect(rdev, dev, reason, true);
8038 wdev_unlock(dev->ieee80211_ptr);
8042 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8048 if (info->attrs[NL80211_ATTR_PID]) {
8049 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8051 net = get_net_ns_by_pid(pid);
8052 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8053 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
8055 net = get_net_ns_by_fd(fd);
8061 return PTR_ERR(net);
8065 /* check if anything to do */
8066 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8067 err = cfg80211_switch_netns(rdev, net);
8073 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8076 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8077 struct cfg80211_pmksa *pmksa) = NULL;
8078 struct net_device *dev = info->user_ptr[1];
8079 struct cfg80211_pmksa pmksa;
8081 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8083 if (!info->attrs[NL80211_ATTR_MAC])
8086 if (!info->attrs[NL80211_ATTR_PMKID])
8089 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8090 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8092 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8093 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8096 switch (info->genlhdr->cmd) {
8097 case NL80211_CMD_SET_PMKSA:
8098 rdev_ops = rdev->ops->set_pmksa;
8100 case NL80211_CMD_DEL_PMKSA:
8101 rdev_ops = rdev->ops->del_pmksa;
8111 return rdev_ops(&rdev->wiphy, dev, &pmksa);
8114 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8117 struct net_device *dev = info->user_ptr[1];
8119 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8120 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8123 if (!rdev->ops->flush_pmksa)
8126 return rdev_flush_pmksa(rdev, dev);
8129 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8131 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8132 struct net_device *dev = info->user_ptr[1];
8133 u8 action_code, dialog_token;
8134 u32 peer_capability = 0;
8139 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8140 !rdev->ops->tdls_mgmt)
8143 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8144 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8145 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8146 !info->attrs[NL80211_ATTR_IE] ||
8147 !info->attrs[NL80211_ATTR_MAC])
8150 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8151 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8152 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8153 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
8154 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
8155 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8157 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
8159 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
8160 dialog_token, status_code, peer_capability,
8162 nla_data(info->attrs[NL80211_ATTR_IE]),
8163 nla_len(info->attrs[NL80211_ATTR_IE]));
8166 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8168 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8169 struct net_device *dev = info->user_ptr[1];
8170 enum nl80211_tdls_operation operation;
8173 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8174 !rdev->ops->tdls_oper)
8177 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8178 !info->attrs[NL80211_ATTR_MAC])
8181 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8182 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8184 return rdev_tdls_oper(rdev, dev, peer, operation);
8187 static int nl80211_remain_on_channel(struct sk_buff *skb,
8188 struct genl_info *info)
8190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8191 struct wireless_dev *wdev = info->user_ptr[1];
8192 struct cfg80211_chan_def chandef;
8193 struct sk_buff *msg;
8199 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8200 !info->attrs[NL80211_ATTR_DURATION])
8203 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8205 if (!rdev->ops->remain_on_channel ||
8206 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8210 * We should be on that channel for at least a minimum amount of
8211 * time (10ms) but no longer than the driver supports.
8213 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8214 duration > rdev->wiphy.max_remain_on_channel_duration)
8217 err = nl80211_parse_chandef(rdev, info, &chandef);
8221 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8225 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8226 NL80211_CMD_REMAIN_ON_CHANNEL);
8232 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8238 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8239 goto nla_put_failure;
8241 genlmsg_end(msg, hdr);
8243 return genlmsg_reply(msg, info);
8252 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8253 struct genl_info *info)
8255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8256 struct wireless_dev *wdev = info->user_ptr[1];
8259 if (!info->attrs[NL80211_ATTR_COOKIE])
8262 if (!rdev->ops->cancel_remain_on_channel)
8265 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8267 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
8270 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8271 u8 *rates, u8 rates_len)
8276 for (i = 0; i < rates_len; i++) {
8277 int rate = (rates[i] & 0x7f) * 5;
8279 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8280 struct ieee80211_rate *srate =
8281 &sband->bitrates[ridx];
8282 if (rate == srate->bitrate) {
8287 if (ridx == sband->n_bitrates)
8288 return 0; /* rate not found */
8294 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8295 u8 *rates, u8 rates_len,
8296 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8300 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8302 for (i = 0; i < rates_len; i++) {
8305 ridx = rates[i] / 8;
8306 rbit = BIT(rates[i] % 8);
8308 /* check validity */
8309 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
8312 /* check availability */
8313 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8322 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8326 switch (vht_mcs_map) {
8327 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8329 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8332 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8335 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8345 static void vht_build_mcs_mask(u16 vht_mcs_map,
8346 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8350 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8351 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8356 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8357 struct nl80211_txrate_vht *txrate,
8358 u16 mcs[NL80211_VHT_NSS_MAX])
8360 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8361 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8364 if (!sband->vht_cap.vht_supported)
8367 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8369 /* Build vht_mcs_mask from VHT capabilities */
8370 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8372 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8373 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8374 mcs[i] = txrate->mcs[i];
8382 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
8383 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8384 .len = NL80211_MAX_SUPP_RATES },
8385 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8386 .len = NL80211_MAX_SUPP_HT_RATES },
8387 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
8388 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
8391 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8392 struct genl_info *info)
8394 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
8395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8396 struct cfg80211_bitrate_mask mask;
8398 struct net_device *dev = info->user_ptr[1];
8399 struct nlattr *tx_rates;
8400 struct ieee80211_supported_band *sband;
8403 if (!rdev->ops->set_bitrate_mask)
8406 memset(&mask, 0, sizeof(mask));
8407 /* Default to all rates enabled */
8408 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8409 sband = rdev->wiphy.bands[i];
8414 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
8415 memcpy(mask.control[i].ht_mcs,
8416 sband->ht_cap.mcs.rx_mask,
8417 sizeof(mask.control[i].ht_mcs));
8419 if (!sband->vht_cap.vht_supported)
8422 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8423 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
8426 /* if no rates are given set it back to the defaults */
8427 if (!info->attrs[NL80211_ATTR_TX_RATES])
8431 * The nested attribute uses enum nl80211_band as the index. This maps
8432 * directly to the enum ieee80211_band values used in cfg80211.
8434 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
8435 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
8436 enum ieee80211_band band = nla_type(tx_rates);
8439 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8441 sband = rdev->wiphy.bands[band];
8444 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8445 nla_len(tx_rates), nl80211_txattr_policy);
8448 if (tb[NL80211_TXRATE_LEGACY]) {
8449 mask.control[band].legacy = rateset_to_mask(
8451 nla_data(tb[NL80211_TXRATE_LEGACY]),
8452 nla_len(tb[NL80211_TXRATE_LEGACY]));
8453 if ((mask.control[band].legacy == 0) &&
8454 nla_len(tb[NL80211_TXRATE_LEGACY]))
8457 if (tb[NL80211_TXRATE_HT]) {
8458 if (!ht_rateset_to_mask(
8460 nla_data(tb[NL80211_TXRATE_HT]),
8461 nla_len(tb[NL80211_TXRATE_HT]),
8462 mask.control[band].ht_mcs))
8465 if (tb[NL80211_TXRATE_VHT]) {
8466 if (!vht_set_mcs_mask(
8468 nla_data(tb[NL80211_TXRATE_VHT]),
8469 mask.control[band].vht_mcs))
8472 if (tb[NL80211_TXRATE_GI]) {
8473 mask.control[band].gi =
8474 nla_get_u8(tb[NL80211_TXRATE_GI]);
8475 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8479 if (mask.control[band].legacy == 0) {
8480 /* don't allow empty legacy rates if HT or VHT
8481 * are not even supported.
8483 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8484 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8487 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8488 if (mask.control[band].ht_mcs[i])
8491 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8492 if (mask.control[band].vht_mcs[i])
8495 /* legacy and mcs rates may not be both empty */
8501 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8504 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8507 struct wireless_dev *wdev = info->user_ptr[1];
8508 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8510 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8513 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8514 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8516 switch (wdev->iftype) {
8517 case NL80211_IFTYPE_STATION:
8518 case NL80211_IFTYPE_ADHOC:
8519 case NL80211_IFTYPE_P2P_CLIENT:
8520 case NL80211_IFTYPE_AP:
8521 case NL80211_IFTYPE_AP_VLAN:
8522 case NL80211_IFTYPE_MESH_POINT:
8523 case NL80211_IFTYPE_P2P_GO:
8524 case NL80211_IFTYPE_P2P_DEVICE:
8530 /* not much point in registering if we can't reply */
8531 if (!rdev->ops->mgmt_tx)
8534 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8535 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8536 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8539 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8542 struct wireless_dev *wdev = info->user_ptr[1];
8543 struct cfg80211_chan_def chandef;
8547 struct sk_buff *msg = NULL;
8548 struct cfg80211_mgmt_tx_params params = {
8549 .dont_wait_for_ack =
8550 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8553 if (!info->attrs[NL80211_ATTR_FRAME])
8556 if (!rdev->ops->mgmt_tx)
8559 switch (wdev->iftype) {
8560 case NL80211_IFTYPE_P2P_DEVICE:
8561 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8563 case NL80211_IFTYPE_STATION:
8564 case NL80211_IFTYPE_ADHOC:
8565 case NL80211_IFTYPE_P2P_CLIENT:
8566 case NL80211_IFTYPE_AP:
8567 case NL80211_IFTYPE_AP_VLAN:
8568 case NL80211_IFTYPE_MESH_POINT:
8569 case NL80211_IFTYPE_P2P_GO:
8575 if (info->attrs[NL80211_ATTR_DURATION]) {
8576 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8578 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8581 * We should wait on the channel for at least a minimum amount
8582 * of time (10ms) but no longer than the driver supports.
8584 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8585 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8590 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8592 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8595 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8597 /* get the channel if any has been specified, otherwise pass NULL to
8598 * the driver. The latter will use the current one
8600 chandef.chan = NULL;
8601 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8602 err = nl80211_parse_chandef(rdev, info, &chandef);
8607 if (!chandef.chan && params.offchan)
8610 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8611 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8613 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8614 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8617 if (len % sizeof(u16))
8620 params.n_csa_offsets = len / sizeof(u16);
8621 params.csa_offsets =
8622 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8624 /* check that all the offsets fit the frame */
8625 for (i = 0; i < params.n_csa_offsets; i++) {
8626 if (params.csa_offsets[i] >= params.len)
8631 if (!params.dont_wait_for_ack) {
8632 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8636 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8644 params.chan = chandef.chan;
8645 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8650 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8651 goto nla_put_failure;
8653 genlmsg_end(msg, hdr);
8654 return genlmsg_reply(msg, info);
8666 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8668 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8669 struct wireless_dev *wdev = info->user_ptr[1];
8672 if (!info->attrs[NL80211_ATTR_COOKIE])
8675 if (!rdev->ops->mgmt_tx_cancel_wait)
8678 switch (wdev->iftype) {
8679 case NL80211_IFTYPE_STATION:
8680 case NL80211_IFTYPE_ADHOC:
8681 case NL80211_IFTYPE_P2P_CLIENT:
8682 case NL80211_IFTYPE_AP:
8683 case NL80211_IFTYPE_AP_VLAN:
8684 case NL80211_IFTYPE_P2P_GO:
8685 case NL80211_IFTYPE_P2P_DEVICE:
8691 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8693 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
8696 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8699 struct wireless_dev *wdev;
8700 struct net_device *dev = info->user_ptr[1];
8705 if (!info->attrs[NL80211_ATTR_PS_STATE])
8708 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8710 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8713 wdev = dev->ieee80211_ptr;
8715 if (!rdev->ops->set_power_mgmt)
8718 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8720 if (state == wdev->ps)
8723 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8729 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8732 enum nl80211_ps_state ps_state;
8733 struct wireless_dev *wdev;
8734 struct net_device *dev = info->user_ptr[1];
8735 struct sk_buff *msg;
8739 wdev = dev->ieee80211_ptr;
8741 if (!rdev->ops->set_power_mgmt)
8744 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8748 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8749 NL80211_CMD_GET_POWER_SAVE);
8756 ps_state = NL80211_PS_ENABLED;
8758 ps_state = NL80211_PS_DISABLED;
8760 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8761 goto nla_put_failure;
8763 genlmsg_end(msg, hdr);
8764 return genlmsg_reply(msg, info);
8773 static const struct nla_policy
8774 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8775 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8776 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8777 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8778 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8779 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8780 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8783 static int nl80211_set_cqm_txe(struct genl_info *info,
8784 u32 rate, u32 pkts, u32 intvl)
8786 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8787 struct net_device *dev = info->user_ptr[1];
8788 struct wireless_dev *wdev = dev->ieee80211_ptr;
8790 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8793 if (!rdev->ops->set_cqm_txe_config)
8796 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8797 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8800 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8803 static int nl80211_set_cqm_rssi(struct genl_info *info,
8804 s32 threshold, u32 hysteresis)
8806 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8807 struct net_device *dev = info->user_ptr[1];
8808 struct wireless_dev *wdev = dev->ieee80211_ptr;
8813 /* disabling - hysteresis should also be zero then */
8817 if (!rdev->ops->set_cqm_rssi_config)
8820 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8821 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8824 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8827 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8829 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8833 cqm = info->attrs[NL80211_ATTR_CQM];
8837 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8838 nl80211_attr_cqm_policy);
8842 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8843 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8844 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8845 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8847 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8850 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8851 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8852 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8853 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8854 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8855 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8857 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8863 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8865 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8866 struct net_device *dev = info->user_ptr[1];
8867 struct ocb_setup setup = {};
8870 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8874 return cfg80211_join_ocb(rdev, dev, &setup);
8877 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8879 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8880 struct net_device *dev = info->user_ptr[1];
8882 return cfg80211_leave_ocb(rdev, dev);
8885 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8888 struct net_device *dev = info->user_ptr[1];
8889 struct mesh_config cfg;
8890 struct mesh_setup setup;
8893 /* start with default */
8894 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8895 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8897 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8898 /* and parse parameters if given */
8899 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8904 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8905 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8908 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8909 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8911 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8912 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8913 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8916 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8917 setup.beacon_interval =
8918 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8919 if (setup.beacon_interval < 10 ||
8920 setup.beacon_interval > 10000)
8924 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8926 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8927 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8931 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8932 /* parse additional setup parameters if given */
8933 err = nl80211_parse_mesh_setup(info, &setup);
8939 cfg.auto_open_plinks = false;
8941 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8942 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8946 /* cfg80211_join_mesh() will sort it out */
8947 setup.chandef.chan = NULL;
8950 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8951 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8953 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8954 struct ieee80211_supported_band *sband;
8956 if (!setup.chandef.chan)
8959 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8961 err = ieee80211_get_ratemask(sband, rates, n_rates,
8962 &setup.basic_rates);
8967 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8970 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8973 struct net_device *dev = info->user_ptr[1];
8975 return cfg80211_leave_mesh(rdev, dev);
8979 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8980 struct cfg80211_registered_device *rdev)
8982 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8983 struct nlattr *nl_pats, *nl_pat;
8986 if (!wowlan->n_patterns)
8989 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8993 for (i = 0; i < wowlan->n_patterns; i++) {
8994 nl_pat = nla_nest_start(msg, i + 1);
8997 pat_len = wowlan->patterns[i].pattern_len;
8998 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8999 wowlan->patterns[i].mask) ||
9000 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9001 wowlan->patterns[i].pattern) ||
9002 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9003 wowlan->patterns[i].pkt_offset))
9005 nla_nest_end(msg, nl_pat);
9007 nla_nest_end(msg, nl_pats);
9012 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9013 struct cfg80211_wowlan_tcp *tcp)
9015 struct nlattr *nl_tcp;
9020 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9024 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9025 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
9026 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9027 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9028 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9029 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9030 tcp->payload_len, tcp->payload) ||
9031 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9032 tcp->data_interval) ||
9033 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9034 tcp->wake_len, tcp->wake_data) ||
9035 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9036 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9039 if (tcp->payload_seq.len &&
9040 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9041 sizeof(tcp->payload_seq), &tcp->payload_seq))
9044 if (tcp->payload_tok.len &&
9045 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9046 sizeof(tcp->payload_tok) + tcp->tokens_size,
9050 nla_nest_end(msg, nl_tcp);
9055 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9056 struct cfg80211_sched_scan_request *req)
9058 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
9064 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9068 if (req->n_scan_plans == 1 &&
9069 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9070 req->scan_plans[0].interval * 1000))
9073 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9076 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9080 for (i = 0; i < req->n_channels; i++)
9081 nla_put_u32(msg, i, req->channels[i]->center_freq);
9083 nla_nest_end(msg, freqs);
9085 if (req->n_match_sets) {
9086 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9087 for (i = 0; i < req->n_match_sets; i++) {
9088 match = nla_nest_start(msg, i);
9089 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9090 req->match_sets[i].ssid.ssid_len,
9091 req->match_sets[i].ssid.ssid);
9092 nla_nest_end(msg, match);
9094 nla_nest_end(msg, matches);
9097 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9101 for (i = 0; i < req->n_scan_plans; i++) {
9102 scan_plan = nla_nest_start(msg, i + 1);
9104 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9105 req->scan_plans[i].interval) ||
9106 (req->scan_plans[i].iterations &&
9107 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9108 req->scan_plans[i].iterations)))
9110 nla_nest_end(msg, scan_plan);
9112 nla_nest_end(msg, scan_plans);
9114 nla_nest_end(msg, nd);
9119 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9122 struct sk_buff *msg;
9124 u32 size = NLMSG_DEFAULT_SIZE;
9126 if (!rdev->wiphy.wowlan)
9129 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
9130 /* adjust size to have room for all the data */
9131 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9132 rdev->wiphy.wowlan_config->tcp->payload_len +
9133 rdev->wiphy.wowlan_config->tcp->wake_len +
9134 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
9137 msg = nlmsg_new(size, GFP_KERNEL);
9141 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9142 NL80211_CMD_GET_WOWLAN);
9144 goto nla_put_failure;
9146 if (rdev->wiphy.wowlan_config) {
9147 struct nlattr *nl_wowlan;
9149 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9151 goto nla_put_failure;
9153 if ((rdev->wiphy.wowlan_config->any &&
9154 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9155 (rdev->wiphy.wowlan_config->disconnect &&
9156 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9157 (rdev->wiphy.wowlan_config->magic_pkt &&
9158 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9159 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9160 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9161 (rdev->wiphy.wowlan_config->eap_identity_req &&
9162 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9163 (rdev->wiphy.wowlan_config->four_way_handshake &&
9164 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9165 (rdev->wiphy.wowlan_config->rfkill_release &&
9166 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9167 goto nla_put_failure;
9169 if (nl80211_send_wowlan_patterns(msg, rdev))
9170 goto nla_put_failure;
9172 if (nl80211_send_wowlan_tcp(msg,
9173 rdev->wiphy.wowlan_config->tcp))
9174 goto nla_put_failure;
9176 if (nl80211_send_wowlan_nd(
9178 rdev->wiphy.wowlan_config->nd_config))
9179 goto nla_put_failure;
9181 nla_nest_end(msg, nl_wowlan);
9184 genlmsg_end(msg, hdr);
9185 return genlmsg_reply(msg, info);
9192 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9193 struct nlattr *attr,
9194 struct cfg80211_wowlan *trig)
9196 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9197 struct cfg80211_wowlan_tcp *cfg;
9198 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9199 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9201 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9204 if (!rdev->wiphy.wowlan->tcp)
9207 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9208 nla_data(attr), nla_len(attr),
9209 nl80211_wowlan_tcp_policy);
9213 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9214 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9215 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9216 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9217 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9218 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9219 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9220 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9223 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
9224 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
9227 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
9228 rdev->wiphy.wowlan->tcp->data_interval_max ||
9229 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
9232 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
9233 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
9236 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9237 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9240 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9241 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9243 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9244 tokens_size = tokln - sizeof(*tok);
9246 if (!tok->len || tokens_size % tok->len)
9248 if (!rdev->wiphy.wowlan->tcp->tok)
9250 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9252 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9254 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9256 if (tok->offset + tok->len > data_size)
9260 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9261 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9262 if (!rdev->wiphy.wowlan->tcp->seq)
9264 if (seq->len == 0 || seq->len > 4)
9266 if (seq->len + seq->offset > data_size)
9270 size = sizeof(*cfg);
9272 size += wake_size + wake_mask_size;
9273 size += tokens_size;
9275 cfg = kzalloc(size, GFP_KERNEL);
9278 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9279 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9280 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9282 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9283 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9287 /* allocate a socket and port for it and use it */
9288 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9289 IPPROTO_TCP, &cfg->sock, 1);
9294 if (inet_csk_get_port(cfg->sock->sk, port)) {
9295 sock_release(cfg->sock);
9299 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9305 cfg->src_port = port;
9308 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9309 cfg->payload_len = data_size;
9310 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9311 memcpy((void *)cfg->payload,
9312 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9315 cfg->payload_seq = *seq;
9316 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9317 cfg->wake_len = wake_size;
9318 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9319 memcpy((void *)cfg->wake_data,
9320 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9322 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9323 data_size + wake_size;
9324 memcpy((void *)cfg->wake_mask,
9325 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9328 cfg->tokens_size = tokens_size;
9329 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9337 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9338 const struct wiphy_wowlan_support *wowlan,
9339 struct nlattr *attr,
9340 struct cfg80211_wowlan *trig)
9345 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9349 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9354 err = nla_parse(tb, NL80211_ATTR_MAX,
9355 nla_data(attr), nla_len(attr),
9360 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9361 err = PTR_ERR_OR_ZERO(trig->nd_config);
9363 trig->nd_config = NULL;
9370 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9373 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9374 struct cfg80211_wowlan new_triggers = {};
9375 struct cfg80211_wowlan *ntrig;
9376 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9378 bool prev_enabled = rdev->wiphy.wowlan_config;
9379 bool regular = false;
9384 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9385 cfg80211_rdev_free_wowlan(rdev);
9386 rdev->wiphy.wowlan_config = NULL;
9390 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9391 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9392 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9393 nl80211_wowlan_policy);
9397 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9398 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9400 new_triggers.any = true;
9403 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9404 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9406 new_triggers.disconnect = true;
9410 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9411 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9413 new_triggers.magic_pkt = true;
9417 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9420 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9421 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9423 new_triggers.gtk_rekey_failure = true;
9427 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9428 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9430 new_triggers.eap_identity_req = true;
9434 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9435 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9437 new_triggers.four_way_handshake = true;
9441 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9442 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9444 new_triggers.rfkill_release = true;
9448 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9451 int rem, pat_len, mask_len, pkt_offset;
9452 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9456 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9459 if (n_patterns > wowlan->n_patterns)
9462 new_triggers.patterns = kcalloc(n_patterns,
9463 sizeof(new_triggers.patterns[0]),
9465 if (!new_triggers.patterns)
9468 new_triggers.n_patterns = n_patterns;
9471 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9475 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9476 nla_len(pat), nl80211_packet_pattern_policy);
9478 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9479 !pat_tb[NL80211_PKTPAT_PATTERN])
9481 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9482 mask_len = DIV_ROUND_UP(pat_len, 8);
9483 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9485 if (pat_len > wowlan->pattern_max_len ||
9486 pat_len < wowlan->pattern_min_len)
9489 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9492 pkt_offset = nla_get_u32(
9493 pat_tb[NL80211_PKTPAT_OFFSET]);
9494 if (pkt_offset > wowlan->max_pkt_offset)
9496 new_triggers.patterns[i].pkt_offset = pkt_offset;
9498 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9503 new_triggers.patterns[i].mask = mask_pat;
9504 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9506 mask_pat += mask_len;
9507 new_triggers.patterns[i].pattern = mask_pat;
9508 new_triggers.patterns[i].pattern_len = pat_len;
9510 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9516 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9518 err = nl80211_parse_wowlan_tcp(
9519 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9525 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9527 err = nl80211_parse_wowlan_nd(
9528 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9534 /* The 'any' trigger means the device continues operating more or less
9535 * as in its normal operation mode and wakes up the host on most of the
9536 * normal interrupts (like packet RX, ...)
9537 * It therefore makes little sense to combine with the more constrained
9538 * wakeup trigger modes.
9540 if (new_triggers.any && regular) {
9545 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9550 cfg80211_rdev_free_wowlan(rdev);
9551 rdev->wiphy.wowlan_config = ntrig;
9554 if (rdev->ops->set_wakeup &&
9555 prev_enabled != !!rdev->wiphy.wowlan_config)
9556 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9560 for (i = 0; i < new_triggers.n_patterns; i++)
9561 kfree(new_triggers.patterns[i].mask);
9562 kfree(new_triggers.patterns);
9563 if (new_triggers.tcp && new_triggers.tcp->sock)
9564 sock_release(new_triggers.tcp->sock);
9565 kfree(new_triggers.tcp);
9566 kfree(new_triggers.nd_config);
9571 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9572 struct cfg80211_registered_device *rdev)
9574 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9576 struct cfg80211_coalesce_rules *rule;
9578 if (!rdev->coalesce->n_rules)
9581 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9585 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9586 nl_rule = nla_nest_start(msg, i + 1);
9590 rule = &rdev->coalesce->rules[i];
9591 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9595 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9599 nl_pats = nla_nest_start(msg,
9600 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9604 for (j = 0; j < rule->n_patterns; j++) {
9605 nl_pat = nla_nest_start(msg, j + 1);
9608 pat_len = rule->patterns[j].pattern_len;
9609 if (nla_put(msg, NL80211_PKTPAT_MASK,
9610 DIV_ROUND_UP(pat_len, 8),
9611 rule->patterns[j].mask) ||
9612 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9613 rule->patterns[j].pattern) ||
9614 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9615 rule->patterns[j].pkt_offset))
9617 nla_nest_end(msg, nl_pat);
9619 nla_nest_end(msg, nl_pats);
9620 nla_nest_end(msg, nl_rule);
9622 nla_nest_end(msg, nl_rules);
9627 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9630 struct sk_buff *msg;
9633 if (!rdev->wiphy.coalesce)
9636 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9640 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9641 NL80211_CMD_GET_COALESCE);
9643 goto nla_put_failure;
9645 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9646 goto nla_put_failure;
9648 genlmsg_end(msg, hdr);
9649 return genlmsg_reply(msg, info);
9656 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9658 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9660 struct cfg80211_coalesce_rules *rule;
9665 for (i = 0; i < coalesce->n_rules; i++) {
9666 rule = &coalesce->rules[i];
9667 for (j = 0; j < rule->n_patterns; j++)
9668 kfree(rule->patterns[j].mask);
9669 kfree(rule->patterns);
9671 kfree(coalesce->rules);
9673 rdev->coalesce = NULL;
9676 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9677 struct nlattr *rule,
9678 struct cfg80211_coalesce_rules *new_rule)
9681 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9682 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9683 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9684 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9686 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9687 nla_len(rule), nl80211_coalesce_policy);
9691 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9693 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9694 if (new_rule->delay > coalesce->max_delay)
9697 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9698 new_rule->condition =
9699 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9700 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9701 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9704 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9707 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9710 if (n_patterns > coalesce->n_patterns)
9713 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9715 if (!new_rule->patterns)
9718 new_rule->n_patterns = n_patterns;
9721 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9725 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9726 nla_len(pat), nl80211_packet_pattern_policy);
9727 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9728 !pat_tb[NL80211_PKTPAT_PATTERN])
9730 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9731 mask_len = DIV_ROUND_UP(pat_len, 8);
9732 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9734 if (pat_len > coalesce->pattern_max_len ||
9735 pat_len < coalesce->pattern_min_len)
9738 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9741 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9742 if (pkt_offset > coalesce->max_pkt_offset)
9744 new_rule->patterns[i].pkt_offset = pkt_offset;
9746 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9750 new_rule->patterns[i].mask = mask_pat;
9751 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9754 mask_pat += mask_len;
9755 new_rule->patterns[i].pattern = mask_pat;
9756 new_rule->patterns[i].pattern_len = pat_len;
9757 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9765 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9768 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9769 struct cfg80211_coalesce new_coalesce = {};
9770 struct cfg80211_coalesce *n_coalesce;
9771 int err, rem_rule, n_rules = 0, i, j;
9772 struct nlattr *rule;
9773 struct cfg80211_coalesce_rules *tmp_rule;
9775 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9778 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9779 cfg80211_rdev_free_coalesce(rdev);
9780 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9784 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9787 if (n_rules > coalesce->n_rules)
9790 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9792 if (!new_coalesce.rules)
9795 new_coalesce.n_rules = n_rules;
9798 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9800 err = nl80211_parse_coalesce_rule(rdev, rule,
9801 &new_coalesce.rules[i]);
9808 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9812 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9817 cfg80211_rdev_free_coalesce(rdev);
9818 rdev->coalesce = n_coalesce;
9822 for (i = 0; i < new_coalesce.n_rules; i++) {
9823 tmp_rule = &new_coalesce.rules[i];
9824 for (j = 0; j < tmp_rule->n_patterns; j++)
9825 kfree(tmp_rule->patterns[j].mask);
9826 kfree(tmp_rule->patterns);
9828 kfree(new_coalesce.rules);
9833 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9836 struct net_device *dev = info->user_ptr[1];
9837 struct wireless_dev *wdev = dev->ieee80211_ptr;
9838 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9839 struct cfg80211_gtk_rekey_data rekey_data = {};
9842 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9845 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9846 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9847 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9848 nl80211_rekey_policy);
9852 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
9853 !tb[NL80211_REKEY_DATA_KCK])
9855 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9857 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9859 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9862 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9863 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9864 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9867 if (!wdev->current_bss) {
9872 if (!rdev->ops->set_rekey_data) {
9877 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9883 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9884 struct genl_info *info)
9886 struct net_device *dev = info->user_ptr[1];
9887 struct wireless_dev *wdev = dev->ieee80211_ptr;
9889 if (wdev->iftype != NL80211_IFTYPE_AP &&
9890 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9893 if (wdev->ap_unexpected_nlportid)
9896 wdev->ap_unexpected_nlportid = info->snd_portid;
9900 static int nl80211_probe_client(struct sk_buff *skb,
9901 struct genl_info *info)
9903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9904 struct net_device *dev = info->user_ptr[1];
9905 struct wireless_dev *wdev = dev->ieee80211_ptr;
9906 struct sk_buff *msg;
9912 if (wdev->iftype != NL80211_IFTYPE_AP &&
9913 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9916 if (!info->attrs[NL80211_ATTR_MAC])
9919 if (!rdev->ops->probe_client)
9922 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9926 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9927 NL80211_CMD_PROBE_CLIENT);
9933 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9935 err = rdev_probe_client(rdev, dev, addr, &cookie);
9939 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9940 goto nla_put_failure;
9942 genlmsg_end(msg, hdr);
9944 return genlmsg_reply(msg, info);
9953 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9956 struct cfg80211_beacon_registration *reg, *nreg;
9959 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9962 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9966 /* First, check if already registered. */
9967 spin_lock_bh(&rdev->beacon_registrations_lock);
9968 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9969 if (reg->nlportid == info->snd_portid) {
9974 /* Add it to the list */
9975 nreg->nlportid = info->snd_portid;
9976 list_add(&nreg->list, &rdev->beacon_registrations);
9978 spin_unlock_bh(&rdev->beacon_registrations_lock);
9982 spin_unlock_bh(&rdev->beacon_registrations_lock);
9987 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9990 struct wireless_dev *wdev = info->user_ptr[1];
9993 if (!rdev->ops->start_p2p_device)
9996 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9999 if (wdev->p2p_started)
10002 if (rfkill_blocked(rdev->rfkill))
10005 err = rdev_start_p2p_device(rdev, wdev);
10009 wdev->p2p_started = true;
10015 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10018 struct wireless_dev *wdev = info->user_ptr[1];
10020 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10021 return -EOPNOTSUPP;
10023 if (!rdev->ops->stop_p2p_device)
10024 return -EOPNOTSUPP;
10026 cfg80211_stop_p2p_device(rdev, wdev);
10031 static int nl80211_get_protocol_features(struct sk_buff *skb,
10032 struct genl_info *info)
10035 struct sk_buff *msg;
10037 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10041 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10042 NL80211_CMD_GET_PROTOCOL_FEATURES);
10044 goto nla_put_failure;
10046 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10047 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10048 goto nla_put_failure;
10050 genlmsg_end(msg, hdr);
10051 return genlmsg_reply(msg, info);
10058 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10061 struct cfg80211_update_ft_ies_params ft_params;
10062 struct net_device *dev = info->user_ptr[1];
10064 if (!rdev->ops->update_ft_ies)
10065 return -EOPNOTSUPP;
10067 if (!info->attrs[NL80211_ATTR_MDID] ||
10068 !info->attrs[NL80211_ATTR_IE] ||
10069 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10072 memset(&ft_params, 0, sizeof(ft_params));
10073 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10074 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10075 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10077 return rdev_update_ft_ies(rdev, dev, &ft_params);
10080 static int nl80211_crit_protocol_start(struct sk_buff *skb,
10081 struct genl_info *info)
10083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10084 struct wireless_dev *wdev = info->user_ptr[1];
10085 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10089 if (!rdev->ops->crit_proto_start)
10090 return -EOPNOTSUPP;
10092 if (WARN_ON(!rdev->ops->crit_proto_stop))
10095 if (rdev->crit_proto_nlportid)
10098 /* determine protocol if provided */
10099 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10100 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10102 if (proto >= NUM_NL80211_CRIT_PROTO)
10105 /* timeout must be provided */
10106 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10110 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10112 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10115 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10117 rdev->crit_proto_nlportid = info->snd_portid;
10122 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10123 struct genl_info *info)
10125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10126 struct wireless_dev *wdev = info->user_ptr[1];
10128 if (!rdev->ops->crit_proto_stop)
10129 return -EOPNOTSUPP;
10131 if (rdev->crit_proto_nlportid) {
10132 rdev->crit_proto_nlportid = 0;
10133 rdev_crit_proto_stop(rdev, wdev);
10138 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10141 struct wireless_dev *wdev =
10142 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10146 if (!rdev->wiphy.vendor_commands)
10147 return -EOPNOTSUPP;
10149 if (IS_ERR(wdev)) {
10150 err = PTR_ERR(wdev);
10151 if (err != -EINVAL)
10154 } else if (wdev->wiphy != &rdev->wiphy) {
10158 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10159 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10162 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10163 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10164 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10165 const struct wiphy_vendor_command *vcmd;
10169 vcmd = &rdev->wiphy.vendor_commands[i];
10171 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10174 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10175 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10178 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10182 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10183 if (wdev->netdev &&
10184 !netif_running(wdev->netdev))
10186 if (!wdev->netdev && !wdev->p2p_started)
10194 return -EOPNOTSUPP;
10196 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10197 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10198 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10201 rdev->cur_cmd_info = info;
10202 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10204 rdev->cur_cmd_info = NULL;
10208 return -EOPNOTSUPP;
10211 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10212 struct netlink_callback *cb,
10213 struct cfg80211_registered_device **rdev,
10214 struct wireless_dev **wdev)
10221 unsigned int data_len = 0;
10224 /* subtract the 1 again here */
10225 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10226 struct wireless_dev *tmp;
10230 *rdev = wiphy_to_rdev(wiphy);
10234 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10235 if (tmp->identifier == cb->args[1] - 1) {
10242 /* keep rtnl locked in successful case */
10246 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10247 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10252 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10253 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
10256 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10257 nl80211_fam.attrbuf);
10261 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10262 nl80211_fam.attrbuf);
10264 return PTR_ERR(*rdev);
10266 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10267 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10269 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10270 const struct wiphy_vendor_command *vcmd;
10272 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10274 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10278 return -EOPNOTSUPP;
10285 return -EOPNOTSUPP;
10287 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10288 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10289 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10292 /* 0 is the first index - add 1 to parse only once */
10293 cb->args[0] = (*rdev)->wiphy_idx + 1;
10294 /* add 1 to know if it was NULL */
10295 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10296 cb->args[2] = vcmd_idx;
10297 cb->args[3] = (unsigned long)data;
10298 cb->args[4] = data_len;
10300 /* keep rtnl locked in successful case */
10304 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10305 struct netlink_callback *cb)
10307 struct cfg80211_registered_device *rdev;
10308 struct wireless_dev *wdev;
10309 unsigned int vcmd_idx;
10310 const struct wiphy_vendor_command *vcmd;
10314 struct nlattr *vendor_data;
10317 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10321 vcmd_idx = cb->args[2];
10322 data = (void *)cb->args[3];
10323 data_len = cb->args[4];
10324 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10326 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10327 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10332 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10338 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10339 if (wdev->netdev &&
10340 !netif_running(wdev->netdev)) {
10344 if (!wdev->netdev && !wdev->p2p_started) {
10352 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10353 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10354 NL80211_CMD_VENDOR);
10358 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10359 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10361 genlmsg_cancel(skb, hdr);
10365 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10366 if (!vendor_data) {
10367 genlmsg_cancel(skb, hdr);
10371 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10372 (unsigned long *)&cb->args[5]);
10373 nla_nest_end(skb, vendor_data);
10375 if (err == -ENOBUFS || err == -ENOENT) {
10376 genlmsg_cancel(skb, hdr);
10379 genlmsg_cancel(skb, hdr);
10383 genlmsg_end(skb, hdr);
10392 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10393 enum nl80211_commands cmd,
10394 enum nl80211_attrs attr,
10397 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10399 if (WARN_ON(!rdev->cur_cmd_info))
10402 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
10403 rdev->cur_cmd_info->snd_portid,
10404 rdev->cur_cmd_info->snd_seq,
10405 cmd, attr, NULL, GFP_KERNEL);
10407 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10409 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10411 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10412 void *hdr = ((void **)skb->cb)[1];
10413 struct nlattr *data = ((void **)skb->cb)[2];
10415 /* clear CB data for netlink core to own from now on */
10416 memset(skb->cb, 0, sizeof(skb->cb));
10418 if (WARN_ON(!rdev->cur_cmd_info)) {
10423 nla_nest_end(skb, data);
10424 genlmsg_end(skb, hdr);
10425 return genlmsg_reply(skb, rdev->cur_cmd_info);
10427 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10430 static int nl80211_set_qos_map(struct sk_buff *skb,
10431 struct genl_info *info)
10433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10434 struct cfg80211_qos_map *qos_map = NULL;
10435 struct net_device *dev = info->user_ptr[1];
10436 u8 *pos, len, num_des, des_len, des;
10439 if (!rdev->ops->set_qos_map)
10440 return -EOPNOTSUPP;
10442 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10443 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10444 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10446 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10447 len > IEEE80211_QOS_MAP_LEN_MAX)
10450 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10454 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10456 des_len = num_des *
10457 sizeof(struct cfg80211_dscp_exception);
10458 memcpy(qos_map->dscp_exception, pos, des_len);
10459 qos_map->num_des = num_des;
10460 for (des = 0; des < num_des; des++) {
10461 if (qos_map->dscp_exception[des].up > 7) {
10468 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10471 wdev_lock(dev->ieee80211_ptr);
10472 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10474 ret = rdev_set_qos_map(rdev, dev, qos_map);
10475 wdev_unlock(dev->ieee80211_ptr);
10481 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10484 struct net_device *dev = info->user_ptr[1];
10485 struct wireless_dev *wdev = dev->ieee80211_ptr;
10488 u16 admitted_time = 0;
10491 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
10492 return -EOPNOTSUPP;
10494 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10495 !info->attrs[NL80211_ATTR_USER_PRIO])
10498 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10499 if (tsid >= IEEE80211_NUM_TIDS)
10502 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10503 if (up >= IEEE80211_NUM_UPS)
10506 /* WMM uses TIDs 0-7 even for TSPEC */
10507 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
10508 /* TODO: handle 802.11 TSPEC/admission control
10509 * need more attributes for that (e.g. BA session requirement);
10510 * change the WMM adminssion test above to allow both then
10515 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10517 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10519 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10520 if (!admitted_time)
10525 switch (wdev->iftype) {
10526 case NL80211_IFTYPE_STATION:
10527 case NL80211_IFTYPE_P2P_CLIENT:
10528 if (wdev->current_bss)
10537 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10544 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10547 struct net_device *dev = info->user_ptr[1];
10548 struct wireless_dev *wdev = dev->ieee80211_ptr;
10553 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10556 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10557 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10560 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10566 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10567 struct genl_info *info)
10569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10570 struct net_device *dev = info->user_ptr[1];
10571 struct wireless_dev *wdev = dev->ieee80211_ptr;
10572 struct cfg80211_chan_def chandef = {};
10577 if (!rdev->ops->tdls_channel_switch ||
10578 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10579 return -EOPNOTSUPP;
10581 switch (dev->ieee80211_ptr->iftype) {
10582 case NL80211_IFTYPE_STATION:
10583 case NL80211_IFTYPE_P2P_CLIENT:
10586 return -EOPNOTSUPP;
10589 if (!info->attrs[NL80211_ATTR_MAC] ||
10590 !info->attrs[NL80211_ATTR_OPER_CLASS])
10593 err = nl80211_parse_chandef(rdev, info, &chandef);
10598 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10599 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10600 * specification is not defined for them.
10602 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10603 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10604 chandef.width != NL80211_CHAN_WIDTH_20)
10607 /* we will be active on the TDLS link */
10608 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10612 /* don't allow switching to DFS channels */
10613 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10616 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10617 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10620 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10626 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10627 struct genl_info *info)
10629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10630 struct net_device *dev = info->user_ptr[1];
10631 struct wireless_dev *wdev = dev->ieee80211_ptr;
10634 if (!rdev->ops->tdls_channel_switch ||
10635 !rdev->ops->tdls_cancel_channel_switch ||
10636 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10637 return -EOPNOTSUPP;
10639 switch (dev->ieee80211_ptr->iftype) {
10640 case NL80211_IFTYPE_STATION:
10641 case NL80211_IFTYPE_P2P_CLIENT:
10644 return -EOPNOTSUPP;
10647 if (!info->attrs[NL80211_ATTR_MAC])
10650 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10653 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10659 #define NL80211_FLAG_NEED_WIPHY 0x01
10660 #define NL80211_FLAG_NEED_NETDEV 0x02
10661 #define NL80211_FLAG_NEED_RTNL 0x04
10662 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10663 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10664 NL80211_FLAG_CHECK_NETDEV_UP)
10665 #define NL80211_FLAG_NEED_WDEV 0x10
10666 /* If a netdev is associated, it must be UP, P2P must be started */
10667 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10668 NL80211_FLAG_CHECK_NETDEV_UP)
10669 #define NL80211_FLAG_CLEAR_SKB 0x20
10671 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
10672 struct genl_info *info)
10674 struct cfg80211_registered_device *rdev;
10675 struct wireless_dev *wdev;
10676 struct net_device *dev;
10677 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10682 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
10683 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
10684 if (IS_ERR(rdev)) {
10687 return PTR_ERR(rdev);
10689 info->user_ptr[0] = rdev;
10690 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10691 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10694 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10696 if (IS_ERR(wdev)) {
10699 return PTR_ERR(wdev);
10702 dev = wdev->netdev;
10703 rdev = wiphy_to_rdev(wdev->wiphy);
10705 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10712 info->user_ptr[1] = dev;
10714 info->user_ptr[1] = wdev;
10718 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10719 !netif_running(dev)) {
10726 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10727 if (!wdev->p2p_started) {
10734 info->user_ptr[0] = rdev;
10740 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
10741 struct genl_info *info)
10743 if (info->user_ptr[1]) {
10744 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10745 struct wireless_dev *wdev = info->user_ptr[1];
10748 dev_put(wdev->netdev);
10750 dev_put(info->user_ptr[1]);
10754 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10757 /* If needed, clear the netlink message payload from the SKB
10758 * as it might contain key data that shouldn't stick around on
10759 * the heap after the SKB is freed. The netlink message header
10760 * is still needed for further processing, so leave it intact.
10762 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10763 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10765 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10769 static const struct genl_ops nl80211_ops[] = {
10771 .cmd = NL80211_CMD_GET_WIPHY,
10772 .doit = nl80211_get_wiphy,
10773 .dumpit = nl80211_dump_wiphy,
10774 .done = nl80211_dump_wiphy_done,
10775 .policy = nl80211_policy,
10776 /* can be retrieved by unprivileged users */
10777 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10778 NL80211_FLAG_NEED_RTNL,
10781 .cmd = NL80211_CMD_SET_WIPHY,
10782 .doit = nl80211_set_wiphy,
10783 .policy = nl80211_policy,
10784 .flags = GENL_ADMIN_PERM,
10785 .internal_flags = NL80211_FLAG_NEED_RTNL,
10788 .cmd = NL80211_CMD_GET_INTERFACE,
10789 .doit = nl80211_get_interface,
10790 .dumpit = nl80211_dump_interface,
10791 .policy = nl80211_policy,
10792 /* can be retrieved by unprivileged users */
10793 .internal_flags = NL80211_FLAG_NEED_WDEV |
10794 NL80211_FLAG_NEED_RTNL,
10797 .cmd = NL80211_CMD_SET_INTERFACE,
10798 .doit = nl80211_set_interface,
10799 .policy = nl80211_policy,
10800 .flags = GENL_ADMIN_PERM,
10801 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10802 NL80211_FLAG_NEED_RTNL,
10805 .cmd = NL80211_CMD_NEW_INTERFACE,
10806 .doit = nl80211_new_interface,
10807 .policy = nl80211_policy,
10808 .flags = GENL_ADMIN_PERM,
10809 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10810 NL80211_FLAG_NEED_RTNL,
10813 .cmd = NL80211_CMD_DEL_INTERFACE,
10814 .doit = nl80211_del_interface,
10815 .policy = nl80211_policy,
10816 .flags = GENL_ADMIN_PERM,
10817 .internal_flags = NL80211_FLAG_NEED_WDEV |
10818 NL80211_FLAG_NEED_RTNL,
10821 .cmd = NL80211_CMD_GET_KEY,
10822 .doit = nl80211_get_key,
10823 .policy = nl80211_policy,
10824 .flags = GENL_ADMIN_PERM,
10825 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10826 NL80211_FLAG_NEED_RTNL,
10829 .cmd = NL80211_CMD_SET_KEY,
10830 .doit = nl80211_set_key,
10831 .policy = nl80211_policy,
10832 .flags = GENL_ADMIN_PERM,
10833 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10834 NL80211_FLAG_NEED_RTNL |
10835 NL80211_FLAG_CLEAR_SKB,
10838 .cmd = NL80211_CMD_NEW_KEY,
10839 .doit = nl80211_new_key,
10840 .policy = nl80211_policy,
10841 .flags = GENL_ADMIN_PERM,
10842 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10843 NL80211_FLAG_NEED_RTNL |
10844 NL80211_FLAG_CLEAR_SKB,
10847 .cmd = NL80211_CMD_DEL_KEY,
10848 .doit = nl80211_del_key,
10849 .policy = nl80211_policy,
10850 .flags = GENL_ADMIN_PERM,
10851 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10852 NL80211_FLAG_NEED_RTNL,
10855 .cmd = NL80211_CMD_SET_BEACON,
10856 .policy = nl80211_policy,
10857 .flags = GENL_ADMIN_PERM,
10858 .doit = nl80211_set_beacon,
10859 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10860 NL80211_FLAG_NEED_RTNL,
10863 .cmd = NL80211_CMD_START_AP,
10864 .policy = nl80211_policy,
10865 .flags = GENL_ADMIN_PERM,
10866 .doit = nl80211_start_ap,
10867 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10868 NL80211_FLAG_NEED_RTNL,
10871 .cmd = NL80211_CMD_STOP_AP,
10872 .policy = nl80211_policy,
10873 .flags = GENL_ADMIN_PERM,
10874 .doit = nl80211_stop_ap,
10875 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10876 NL80211_FLAG_NEED_RTNL,
10879 .cmd = NL80211_CMD_GET_STATION,
10880 .doit = nl80211_get_station,
10881 .dumpit = nl80211_dump_station,
10882 .policy = nl80211_policy,
10883 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10884 NL80211_FLAG_NEED_RTNL,
10887 .cmd = NL80211_CMD_SET_STATION,
10888 .doit = nl80211_set_station,
10889 .policy = nl80211_policy,
10890 .flags = GENL_ADMIN_PERM,
10891 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10892 NL80211_FLAG_NEED_RTNL,
10895 .cmd = NL80211_CMD_NEW_STATION,
10896 .doit = nl80211_new_station,
10897 .policy = nl80211_policy,
10898 .flags = GENL_ADMIN_PERM,
10899 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10900 NL80211_FLAG_NEED_RTNL,
10903 .cmd = NL80211_CMD_DEL_STATION,
10904 .doit = nl80211_del_station,
10905 .policy = nl80211_policy,
10906 .flags = GENL_ADMIN_PERM,
10907 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10908 NL80211_FLAG_NEED_RTNL,
10911 .cmd = NL80211_CMD_GET_MPATH,
10912 .doit = nl80211_get_mpath,
10913 .dumpit = nl80211_dump_mpath,
10914 .policy = nl80211_policy,
10915 .flags = GENL_ADMIN_PERM,
10916 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10917 NL80211_FLAG_NEED_RTNL,
10920 .cmd = NL80211_CMD_GET_MPP,
10921 .doit = nl80211_get_mpp,
10922 .dumpit = nl80211_dump_mpp,
10923 .policy = nl80211_policy,
10924 .flags = GENL_ADMIN_PERM,
10925 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10926 NL80211_FLAG_NEED_RTNL,
10929 .cmd = NL80211_CMD_SET_MPATH,
10930 .doit = nl80211_set_mpath,
10931 .policy = nl80211_policy,
10932 .flags = GENL_ADMIN_PERM,
10933 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10934 NL80211_FLAG_NEED_RTNL,
10937 .cmd = NL80211_CMD_NEW_MPATH,
10938 .doit = nl80211_new_mpath,
10939 .policy = nl80211_policy,
10940 .flags = GENL_ADMIN_PERM,
10941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10942 NL80211_FLAG_NEED_RTNL,
10945 .cmd = NL80211_CMD_DEL_MPATH,
10946 .doit = nl80211_del_mpath,
10947 .policy = nl80211_policy,
10948 .flags = GENL_ADMIN_PERM,
10949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10950 NL80211_FLAG_NEED_RTNL,
10953 .cmd = NL80211_CMD_SET_BSS,
10954 .doit = nl80211_set_bss,
10955 .policy = nl80211_policy,
10956 .flags = GENL_ADMIN_PERM,
10957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10958 NL80211_FLAG_NEED_RTNL,
10961 .cmd = NL80211_CMD_GET_REG,
10962 .doit = nl80211_get_reg_do,
10963 .dumpit = nl80211_get_reg_dump,
10964 .policy = nl80211_policy,
10965 .internal_flags = NL80211_FLAG_NEED_RTNL,
10966 /* can be retrieved by unprivileged users */
10968 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
10970 .cmd = NL80211_CMD_SET_REG,
10971 .doit = nl80211_set_reg,
10972 .policy = nl80211_policy,
10973 .flags = GENL_ADMIN_PERM,
10974 .internal_flags = NL80211_FLAG_NEED_RTNL,
10978 .cmd = NL80211_CMD_REQ_SET_REG,
10979 .doit = nl80211_req_set_reg,
10980 .policy = nl80211_policy,
10981 .flags = GENL_ADMIN_PERM,
10984 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10985 .doit = nl80211_get_mesh_config,
10986 .policy = nl80211_policy,
10987 /* can be retrieved by unprivileged users */
10988 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10989 NL80211_FLAG_NEED_RTNL,
10992 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10993 .doit = nl80211_update_mesh_config,
10994 .policy = nl80211_policy,
10995 .flags = GENL_ADMIN_PERM,
10996 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10997 NL80211_FLAG_NEED_RTNL,
11000 .cmd = NL80211_CMD_TRIGGER_SCAN,
11001 .doit = nl80211_trigger_scan,
11002 .policy = nl80211_policy,
11003 .flags = GENL_ADMIN_PERM,
11004 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11005 NL80211_FLAG_NEED_RTNL,
11008 .cmd = NL80211_CMD_GET_SCAN,
11009 .policy = nl80211_policy,
11010 .dumpit = nl80211_dump_scan,
11013 .cmd = NL80211_CMD_START_SCHED_SCAN,
11014 .doit = nl80211_start_sched_scan,
11015 .policy = nl80211_policy,
11016 .flags = GENL_ADMIN_PERM,
11017 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11018 NL80211_FLAG_NEED_RTNL,
11021 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11022 .doit = nl80211_stop_sched_scan,
11023 .policy = nl80211_policy,
11024 .flags = GENL_ADMIN_PERM,
11025 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11026 NL80211_FLAG_NEED_RTNL,
11029 .cmd = NL80211_CMD_AUTHENTICATE,
11030 .doit = nl80211_authenticate,
11031 .policy = nl80211_policy,
11032 .flags = GENL_ADMIN_PERM,
11033 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11034 NL80211_FLAG_NEED_RTNL |
11035 NL80211_FLAG_CLEAR_SKB,
11038 .cmd = NL80211_CMD_ASSOCIATE,
11039 .doit = nl80211_associate,
11040 .policy = nl80211_policy,
11041 .flags = GENL_ADMIN_PERM,
11042 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11043 NL80211_FLAG_NEED_RTNL,
11046 .cmd = NL80211_CMD_DEAUTHENTICATE,
11047 .doit = nl80211_deauthenticate,
11048 .policy = nl80211_policy,
11049 .flags = GENL_ADMIN_PERM,
11050 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11051 NL80211_FLAG_NEED_RTNL,
11054 .cmd = NL80211_CMD_DISASSOCIATE,
11055 .doit = nl80211_disassociate,
11056 .policy = nl80211_policy,
11057 .flags = GENL_ADMIN_PERM,
11058 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11059 NL80211_FLAG_NEED_RTNL,
11062 .cmd = NL80211_CMD_JOIN_IBSS,
11063 .doit = nl80211_join_ibss,
11064 .policy = nl80211_policy,
11065 .flags = GENL_ADMIN_PERM,
11066 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11067 NL80211_FLAG_NEED_RTNL,
11070 .cmd = NL80211_CMD_LEAVE_IBSS,
11071 .doit = nl80211_leave_ibss,
11072 .policy = nl80211_policy,
11073 .flags = GENL_ADMIN_PERM,
11074 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11075 NL80211_FLAG_NEED_RTNL,
11077 #ifdef CONFIG_NL80211_TESTMODE
11079 .cmd = NL80211_CMD_TESTMODE,
11080 .doit = nl80211_testmode_do,
11081 .dumpit = nl80211_testmode_dump,
11082 .policy = nl80211_policy,
11083 .flags = GENL_ADMIN_PERM,
11084 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11085 NL80211_FLAG_NEED_RTNL,
11089 .cmd = NL80211_CMD_CONNECT,
11090 .doit = nl80211_connect,
11091 .policy = nl80211_policy,
11092 .flags = GENL_ADMIN_PERM,
11093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11094 NL80211_FLAG_NEED_RTNL,
11097 .cmd = NL80211_CMD_DISCONNECT,
11098 .doit = nl80211_disconnect,
11099 .policy = nl80211_policy,
11100 .flags = GENL_ADMIN_PERM,
11101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11102 NL80211_FLAG_NEED_RTNL,
11105 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11106 .doit = nl80211_wiphy_netns,
11107 .policy = nl80211_policy,
11108 .flags = GENL_ADMIN_PERM,
11109 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11110 NL80211_FLAG_NEED_RTNL,
11113 .cmd = NL80211_CMD_GET_SURVEY,
11114 .policy = nl80211_policy,
11115 .dumpit = nl80211_dump_survey,
11118 .cmd = NL80211_CMD_SET_PMKSA,
11119 .doit = nl80211_setdel_pmksa,
11120 .policy = nl80211_policy,
11121 .flags = GENL_ADMIN_PERM,
11122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11123 NL80211_FLAG_NEED_RTNL,
11126 .cmd = NL80211_CMD_DEL_PMKSA,
11127 .doit = nl80211_setdel_pmksa,
11128 .policy = nl80211_policy,
11129 .flags = GENL_ADMIN_PERM,
11130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11131 NL80211_FLAG_NEED_RTNL,
11134 .cmd = NL80211_CMD_FLUSH_PMKSA,
11135 .doit = nl80211_flush_pmksa,
11136 .policy = nl80211_policy,
11137 .flags = GENL_ADMIN_PERM,
11138 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11139 NL80211_FLAG_NEED_RTNL,
11142 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11143 .doit = nl80211_remain_on_channel,
11144 .policy = nl80211_policy,
11145 .flags = GENL_ADMIN_PERM,
11146 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11147 NL80211_FLAG_NEED_RTNL,
11150 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11151 .doit = nl80211_cancel_remain_on_channel,
11152 .policy = nl80211_policy,
11153 .flags = GENL_ADMIN_PERM,
11154 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11155 NL80211_FLAG_NEED_RTNL,
11158 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11159 .doit = nl80211_set_tx_bitrate_mask,
11160 .policy = nl80211_policy,
11161 .flags = GENL_ADMIN_PERM,
11162 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11163 NL80211_FLAG_NEED_RTNL,
11166 .cmd = NL80211_CMD_REGISTER_FRAME,
11167 .doit = nl80211_register_mgmt,
11168 .policy = nl80211_policy,
11169 .flags = GENL_ADMIN_PERM,
11170 .internal_flags = NL80211_FLAG_NEED_WDEV |
11171 NL80211_FLAG_NEED_RTNL,
11174 .cmd = NL80211_CMD_FRAME,
11175 .doit = nl80211_tx_mgmt,
11176 .policy = nl80211_policy,
11177 .flags = GENL_ADMIN_PERM,
11178 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11179 NL80211_FLAG_NEED_RTNL,
11182 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11183 .doit = nl80211_tx_mgmt_cancel_wait,
11184 .policy = nl80211_policy,
11185 .flags = GENL_ADMIN_PERM,
11186 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11187 NL80211_FLAG_NEED_RTNL,
11190 .cmd = NL80211_CMD_SET_POWER_SAVE,
11191 .doit = nl80211_set_power_save,
11192 .policy = nl80211_policy,
11193 .flags = GENL_ADMIN_PERM,
11194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11195 NL80211_FLAG_NEED_RTNL,
11198 .cmd = NL80211_CMD_GET_POWER_SAVE,
11199 .doit = nl80211_get_power_save,
11200 .policy = nl80211_policy,
11201 /* can be retrieved by unprivileged users */
11202 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11203 NL80211_FLAG_NEED_RTNL,
11206 .cmd = NL80211_CMD_SET_CQM,
11207 .doit = nl80211_set_cqm,
11208 .policy = nl80211_policy,
11209 .flags = GENL_ADMIN_PERM,
11210 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11211 NL80211_FLAG_NEED_RTNL,
11214 .cmd = NL80211_CMD_SET_CHANNEL,
11215 .doit = nl80211_set_channel,
11216 .policy = nl80211_policy,
11217 .flags = GENL_ADMIN_PERM,
11218 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11219 NL80211_FLAG_NEED_RTNL,
11222 .cmd = NL80211_CMD_SET_WDS_PEER,
11223 .doit = nl80211_set_wds_peer,
11224 .policy = nl80211_policy,
11225 .flags = GENL_ADMIN_PERM,
11226 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11227 NL80211_FLAG_NEED_RTNL,
11230 .cmd = NL80211_CMD_JOIN_MESH,
11231 .doit = nl80211_join_mesh,
11232 .policy = nl80211_policy,
11233 .flags = GENL_ADMIN_PERM,
11234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11235 NL80211_FLAG_NEED_RTNL,
11238 .cmd = NL80211_CMD_LEAVE_MESH,
11239 .doit = nl80211_leave_mesh,
11240 .policy = nl80211_policy,
11241 .flags = GENL_ADMIN_PERM,
11242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11243 NL80211_FLAG_NEED_RTNL,
11246 .cmd = NL80211_CMD_JOIN_OCB,
11247 .doit = nl80211_join_ocb,
11248 .policy = nl80211_policy,
11249 .flags = GENL_ADMIN_PERM,
11250 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11251 NL80211_FLAG_NEED_RTNL,
11254 .cmd = NL80211_CMD_LEAVE_OCB,
11255 .doit = nl80211_leave_ocb,
11256 .policy = nl80211_policy,
11257 .flags = GENL_ADMIN_PERM,
11258 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11259 NL80211_FLAG_NEED_RTNL,
11263 .cmd = NL80211_CMD_GET_WOWLAN,
11264 .doit = nl80211_get_wowlan,
11265 .policy = nl80211_policy,
11266 /* can be retrieved by unprivileged users */
11267 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11268 NL80211_FLAG_NEED_RTNL,
11271 .cmd = NL80211_CMD_SET_WOWLAN,
11272 .doit = nl80211_set_wowlan,
11273 .policy = nl80211_policy,
11274 .flags = GENL_ADMIN_PERM,
11275 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11276 NL80211_FLAG_NEED_RTNL,
11280 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11281 .doit = nl80211_set_rekey_data,
11282 .policy = nl80211_policy,
11283 .flags = GENL_ADMIN_PERM,
11284 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11285 NL80211_FLAG_NEED_RTNL |
11286 NL80211_FLAG_CLEAR_SKB,
11289 .cmd = NL80211_CMD_TDLS_MGMT,
11290 .doit = nl80211_tdls_mgmt,
11291 .policy = nl80211_policy,
11292 .flags = GENL_ADMIN_PERM,
11293 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11294 NL80211_FLAG_NEED_RTNL,
11297 .cmd = NL80211_CMD_TDLS_OPER,
11298 .doit = nl80211_tdls_oper,
11299 .policy = nl80211_policy,
11300 .flags = GENL_ADMIN_PERM,
11301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11302 NL80211_FLAG_NEED_RTNL,
11305 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11306 .doit = nl80211_register_unexpected_frame,
11307 .policy = nl80211_policy,
11308 .flags = GENL_ADMIN_PERM,
11309 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11310 NL80211_FLAG_NEED_RTNL,
11313 .cmd = NL80211_CMD_PROBE_CLIENT,
11314 .doit = nl80211_probe_client,
11315 .policy = nl80211_policy,
11316 .flags = GENL_ADMIN_PERM,
11317 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11318 NL80211_FLAG_NEED_RTNL,
11321 .cmd = NL80211_CMD_REGISTER_BEACONS,
11322 .doit = nl80211_register_beacons,
11323 .policy = nl80211_policy,
11324 .flags = GENL_ADMIN_PERM,
11325 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11326 NL80211_FLAG_NEED_RTNL,
11329 .cmd = NL80211_CMD_SET_NOACK_MAP,
11330 .doit = nl80211_set_noack_map,
11331 .policy = nl80211_policy,
11332 .flags = GENL_ADMIN_PERM,
11333 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11334 NL80211_FLAG_NEED_RTNL,
11337 .cmd = NL80211_CMD_START_P2P_DEVICE,
11338 .doit = nl80211_start_p2p_device,
11339 .policy = nl80211_policy,
11340 .flags = GENL_ADMIN_PERM,
11341 .internal_flags = NL80211_FLAG_NEED_WDEV |
11342 NL80211_FLAG_NEED_RTNL,
11345 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11346 .doit = nl80211_stop_p2p_device,
11347 .policy = nl80211_policy,
11348 .flags = GENL_ADMIN_PERM,
11349 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11350 NL80211_FLAG_NEED_RTNL,
11353 .cmd = NL80211_CMD_SET_MCAST_RATE,
11354 .doit = nl80211_set_mcast_rate,
11355 .policy = nl80211_policy,
11356 .flags = GENL_ADMIN_PERM,
11357 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11358 NL80211_FLAG_NEED_RTNL,
11361 .cmd = NL80211_CMD_SET_MAC_ACL,
11362 .doit = nl80211_set_mac_acl,
11363 .policy = nl80211_policy,
11364 .flags = GENL_ADMIN_PERM,
11365 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11366 NL80211_FLAG_NEED_RTNL,
11369 .cmd = NL80211_CMD_RADAR_DETECT,
11370 .doit = nl80211_start_radar_detection,
11371 .policy = nl80211_policy,
11372 .flags = GENL_ADMIN_PERM,
11373 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11374 NL80211_FLAG_NEED_RTNL,
11377 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11378 .doit = nl80211_get_protocol_features,
11379 .policy = nl80211_policy,
11382 .cmd = NL80211_CMD_UPDATE_FT_IES,
11383 .doit = nl80211_update_ft_ies,
11384 .policy = nl80211_policy,
11385 .flags = GENL_ADMIN_PERM,
11386 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11387 NL80211_FLAG_NEED_RTNL,
11390 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11391 .doit = nl80211_crit_protocol_start,
11392 .policy = nl80211_policy,
11393 .flags = GENL_ADMIN_PERM,
11394 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11395 NL80211_FLAG_NEED_RTNL,
11398 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11399 .doit = nl80211_crit_protocol_stop,
11400 .policy = nl80211_policy,
11401 .flags = GENL_ADMIN_PERM,
11402 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11403 NL80211_FLAG_NEED_RTNL,
11406 .cmd = NL80211_CMD_GET_COALESCE,
11407 .doit = nl80211_get_coalesce,
11408 .policy = nl80211_policy,
11409 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11410 NL80211_FLAG_NEED_RTNL,
11413 .cmd = NL80211_CMD_SET_COALESCE,
11414 .doit = nl80211_set_coalesce,
11415 .policy = nl80211_policy,
11416 .flags = GENL_ADMIN_PERM,
11417 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11418 NL80211_FLAG_NEED_RTNL,
11421 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11422 .doit = nl80211_channel_switch,
11423 .policy = nl80211_policy,
11424 .flags = GENL_ADMIN_PERM,
11425 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11426 NL80211_FLAG_NEED_RTNL,
11429 .cmd = NL80211_CMD_VENDOR,
11430 .doit = nl80211_vendor_cmd,
11431 .dumpit = nl80211_vendor_cmd_dump,
11432 .policy = nl80211_policy,
11433 .flags = GENL_ADMIN_PERM,
11434 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11435 NL80211_FLAG_NEED_RTNL,
11438 .cmd = NL80211_CMD_SET_QOS_MAP,
11439 .doit = nl80211_set_qos_map,
11440 .policy = nl80211_policy,
11441 .flags = GENL_ADMIN_PERM,
11442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11443 NL80211_FLAG_NEED_RTNL,
11446 .cmd = NL80211_CMD_ADD_TX_TS,
11447 .doit = nl80211_add_tx_ts,
11448 .policy = nl80211_policy,
11449 .flags = GENL_ADMIN_PERM,
11450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11451 NL80211_FLAG_NEED_RTNL,
11454 .cmd = NL80211_CMD_DEL_TX_TS,
11455 .doit = nl80211_del_tx_ts,
11456 .policy = nl80211_policy,
11457 .flags = GENL_ADMIN_PERM,
11458 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11459 NL80211_FLAG_NEED_RTNL,
11462 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11463 .doit = nl80211_tdls_channel_switch,
11464 .policy = nl80211_policy,
11465 .flags = GENL_ADMIN_PERM,
11466 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11467 NL80211_FLAG_NEED_RTNL,
11470 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11471 .doit = nl80211_tdls_cancel_channel_switch,
11472 .policy = nl80211_policy,
11473 .flags = GENL_ADMIN_PERM,
11474 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11475 NL80211_FLAG_NEED_RTNL,
11479 /* notification functions */
11481 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11482 enum nl80211_commands cmd)
11484 struct sk_buff *msg;
11485 struct nl80211_dump_wiphy_state state = {};
11487 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11488 cmd != NL80211_CMD_DEL_WIPHY);
11490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11494 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
11499 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11500 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11503 static int nl80211_add_scan_req(struct sk_buff *msg,
11504 struct cfg80211_registered_device *rdev)
11506 struct cfg80211_scan_request *req = rdev->scan_req;
11507 struct nlattr *nest;
11513 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11515 goto nla_put_failure;
11516 for (i = 0; i < req->n_ssids; i++) {
11517 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11518 goto nla_put_failure;
11520 nla_nest_end(msg, nest);
11522 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11524 goto nla_put_failure;
11525 for (i = 0; i < req->n_channels; i++) {
11526 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11527 goto nla_put_failure;
11529 nla_nest_end(msg, nest);
11532 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11533 goto nla_put_failure;
11536 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11537 goto nla_put_failure;
11544 static int nl80211_send_scan_msg(struct sk_buff *msg,
11545 struct cfg80211_registered_device *rdev,
11546 struct wireless_dev *wdev,
11547 u32 portid, u32 seq, int flags,
11552 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11556 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11557 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11558 wdev->netdev->ifindex)) ||
11559 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11560 goto nla_put_failure;
11562 /* ignore errors and send incomplete event anyway */
11563 nl80211_add_scan_req(msg, rdev);
11565 genlmsg_end(msg, hdr);
11569 genlmsg_cancel(msg, hdr);
11574 nl80211_send_sched_scan_msg(struct sk_buff *msg,
11575 struct cfg80211_registered_device *rdev,
11576 struct net_device *netdev,
11577 u32 portid, u32 seq, int flags, u32 cmd)
11581 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11585 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11586 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11587 goto nla_put_failure;
11589 genlmsg_end(msg, hdr);
11593 genlmsg_cancel(msg, hdr);
11597 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
11598 struct wireless_dev *wdev)
11600 struct sk_buff *msg;
11602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11606 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11607 NL80211_CMD_TRIGGER_SCAN) < 0) {
11612 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11613 NL80211_MCGRP_SCAN, GFP_KERNEL);
11616 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11617 struct wireless_dev *wdev, bool aborted)
11619 struct sk_buff *msg;
11621 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11625 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11626 aborted ? NL80211_CMD_SCAN_ABORTED :
11627 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
11635 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11636 struct sk_buff *msg)
11641 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11642 NL80211_MCGRP_SCAN, GFP_KERNEL);
11645 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11646 struct net_device *netdev)
11648 struct sk_buff *msg;
11650 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11654 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11655 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11660 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11661 NL80211_MCGRP_SCAN, GFP_KERNEL);
11664 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11665 struct net_device *netdev, u32 cmd)
11667 struct sk_buff *msg;
11669 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11673 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11678 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11679 NL80211_MCGRP_SCAN, GFP_KERNEL);
11682 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11683 struct regulatory_request *request)
11685 /* Userspace can always count this one always being set */
11686 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11687 goto nla_put_failure;
11689 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11690 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11691 NL80211_REGDOM_TYPE_WORLD))
11692 goto nla_put_failure;
11693 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11694 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11695 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11696 goto nla_put_failure;
11697 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11698 request->intersect) {
11699 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11700 NL80211_REGDOM_TYPE_INTERSECTION))
11701 goto nla_put_failure;
11703 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11704 NL80211_REGDOM_TYPE_COUNTRY) ||
11705 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11707 goto nla_put_failure;
11710 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11711 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11714 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11715 goto nla_put_failure;
11718 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11719 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11720 goto nla_put_failure;
11730 * This can happen on global regulatory changes or device specific settings
11731 * based on custom regulatory domains.
11733 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11734 struct regulatory_request *request)
11736 struct sk_buff *msg;
11739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11743 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11749 if (nl80211_reg_change_event_fill(msg, request) == false)
11750 goto nla_put_failure;
11752 genlmsg_end(msg, hdr);
11755 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11756 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11762 genlmsg_cancel(msg, hdr);
11766 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11767 struct net_device *netdev,
11768 const u8 *buf, size_t len,
11769 enum nl80211_commands cmd, gfp_t gfp,
11772 struct sk_buff *msg;
11775 msg = nlmsg_new(100 + len, gfp);
11779 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11785 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11786 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11787 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11788 goto nla_put_failure;
11790 if (uapsd_queues >= 0) {
11791 struct nlattr *nla_wmm =
11792 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11794 goto nla_put_failure;
11796 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11798 goto nla_put_failure;
11800 nla_nest_end(msg, nla_wmm);
11803 genlmsg_end(msg, hdr);
11805 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11806 NL80211_MCGRP_MLME, gfp);
11810 genlmsg_cancel(msg, hdr);
11814 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
11815 struct net_device *netdev, const u8 *buf,
11816 size_t len, gfp_t gfp)
11818 nl80211_send_mlme_event(rdev, netdev, buf, len,
11819 NL80211_CMD_AUTHENTICATE, gfp, -1);
11822 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11823 struct net_device *netdev, const u8 *buf,
11824 size_t len, gfp_t gfp, int uapsd_queues)
11826 nl80211_send_mlme_event(rdev, netdev, buf, len,
11827 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
11830 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
11831 struct net_device *netdev, const u8 *buf,
11832 size_t len, gfp_t gfp)
11834 nl80211_send_mlme_event(rdev, netdev, buf, len,
11835 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
11838 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11839 struct net_device *netdev, const u8 *buf,
11840 size_t len, gfp_t gfp)
11842 nl80211_send_mlme_event(rdev, netdev, buf, len,
11843 NL80211_CMD_DISASSOCIATE, gfp, -1);
11846 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11849 struct wireless_dev *wdev = dev->ieee80211_ptr;
11850 struct wiphy *wiphy = wdev->wiphy;
11851 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11852 const struct ieee80211_mgmt *mgmt = (void *)buf;
11855 if (WARN_ON(len < 2))
11858 if (ieee80211_is_deauth(mgmt->frame_control))
11859 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11861 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
11863 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
11864 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
11866 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
11868 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11869 struct net_device *netdev, int cmd,
11870 const u8 *addr, gfp_t gfp)
11872 struct sk_buff *msg;
11875 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11879 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11885 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11886 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11887 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11888 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11889 goto nla_put_failure;
11891 genlmsg_end(msg, hdr);
11893 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11894 NL80211_MCGRP_MLME, gfp);
11898 genlmsg_cancel(msg, hdr);
11902 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
11903 struct net_device *netdev, const u8 *addr,
11906 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
11910 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
11911 struct net_device *netdev, const u8 *addr,
11914 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11918 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11919 struct net_device *netdev, const u8 *bssid,
11920 const u8 *req_ie, size_t req_ie_len,
11921 const u8 *resp_ie, size_t resp_ie_len,
11922 u16 status, gfp_t gfp)
11924 struct sk_buff *msg;
11927 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
11931 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11937 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11938 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11939 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11940 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11942 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11944 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11945 goto nla_put_failure;
11947 genlmsg_end(msg, hdr);
11949 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11950 NL80211_MCGRP_MLME, gfp);
11954 genlmsg_cancel(msg, hdr);
11959 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11960 struct net_device *netdev, const u8 *bssid,
11961 const u8 *req_ie, size_t req_ie_len,
11962 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11964 struct sk_buff *msg;
11967 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
11971 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11977 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11978 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11979 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11981 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11983 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11984 goto nla_put_failure;
11986 genlmsg_end(msg, hdr);
11988 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11989 NL80211_MCGRP_MLME, gfp);
11993 genlmsg_cancel(msg, hdr);
11998 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11999 struct net_device *netdev, u16 reason,
12000 const u8 *ie, size_t ie_len, bool from_ap)
12002 struct sk_buff *msg;
12005 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
12009 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12015 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12016 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12017 (from_ap && reason &&
12018 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12020 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12021 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12022 goto nla_put_failure;
12024 genlmsg_end(msg, hdr);
12026 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12027 NL80211_MCGRP_MLME, GFP_KERNEL);
12031 genlmsg_cancel(msg, hdr);
12036 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12037 struct net_device *netdev, const u8 *bssid,
12040 struct sk_buff *msg;
12043 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12047 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12053 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12054 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12055 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12056 goto nla_put_failure;
12058 genlmsg_end(msg, hdr);
12060 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12061 NL80211_MCGRP_MLME, gfp);
12065 genlmsg_cancel(msg, hdr);
12069 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12070 const u8* ie, u8 ie_len, gfp_t gfp)
12072 struct wireless_dev *wdev = dev->ieee80211_ptr;
12073 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12074 struct sk_buff *msg;
12077 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12080 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12082 msg = nlmsg_new(100 + ie_len, gfp);
12086 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12092 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12093 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12094 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12096 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12097 goto nla_put_failure;
12099 genlmsg_end(msg, hdr);
12101 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12102 NL80211_MCGRP_MLME, gfp);
12106 genlmsg_cancel(msg, hdr);
12109 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
12111 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12112 struct net_device *netdev, const u8 *addr,
12113 enum nl80211_key_type key_type, int key_id,
12114 const u8 *tsc, gfp_t gfp)
12116 struct sk_buff *msg;
12119 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12123 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12129 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12130 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12131 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12132 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12134 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12135 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12136 goto nla_put_failure;
12138 genlmsg_end(msg, hdr);
12140 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12141 NL80211_MCGRP_MLME, gfp);
12145 genlmsg_cancel(msg, hdr);
12149 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12150 struct ieee80211_channel *channel_before,
12151 struct ieee80211_channel *channel_after)
12153 struct sk_buff *msg;
12155 struct nlattr *nl_freq;
12157 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
12161 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12168 * Since we are applying the beacon hint to a wiphy we know its
12169 * wiphy_idx is valid
12171 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12172 goto nla_put_failure;
12175 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12177 goto nla_put_failure;
12178 if (nl80211_msg_put_channel(msg, channel_before, false))
12179 goto nla_put_failure;
12180 nla_nest_end(msg, nl_freq);
12183 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12185 goto nla_put_failure;
12186 if (nl80211_msg_put_channel(msg, channel_after, false))
12187 goto nla_put_failure;
12188 nla_nest_end(msg, nl_freq);
12190 genlmsg_end(msg, hdr);
12193 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12194 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12200 genlmsg_cancel(msg, hdr);
12204 static void nl80211_send_remain_on_chan_event(
12205 int cmd, struct cfg80211_registered_device *rdev,
12206 struct wireless_dev *wdev, u64 cookie,
12207 struct ieee80211_channel *chan,
12208 unsigned int duration, gfp_t gfp)
12210 struct sk_buff *msg;
12213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12217 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12223 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12224 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12225 wdev->netdev->ifindex)) ||
12226 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12227 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
12228 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12229 NL80211_CHAN_NO_HT) ||
12230 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12231 goto nla_put_failure;
12233 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12234 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12235 goto nla_put_failure;
12237 genlmsg_end(msg, hdr);
12239 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12240 NL80211_MCGRP_MLME, gfp);
12244 genlmsg_cancel(msg, hdr);
12248 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12249 struct ieee80211_channel *chan,
12250 unsigned int duration, gfp_t gfp)
12252 struct wiphy *wiphy = wdev->wiphy;
12253 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12255 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
12256 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
12257 rdev, wdev, cookie, chan,
12260 EXPORT_SYMBOL(cfg80211_ready_on_channel);
12262 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12263 struct ieee80211_channel *chan,
12266 struct wiphy *wiphy = wdev->wiphy;
12267 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12269 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
12270 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12271 rdev, wdev, cookie, chan, 0, gfp);
12273 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
12275 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12276 struct station_info *sinfo, gfp_t gfp)
12278 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12279 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12280 struct sk_buff *msg;
12282 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12288 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
12289 rdev, dev, mac_addr, sinfo) < 0) {
12294 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12295 NL80211_MCGRP_MLME, gfp);
12297 EXPORT_SYMBOL(cfg80211_new_sta);
12299 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12300 struct station_info *sinfo, gfp_t gfp)
12302 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12303 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12304 struct sk_buff *msg;
12305 struct station_info empty_sinfo = {};
12308 sinfo = &empty_sinfo;
12310 trace_cfg80211_del_sta(dev, mac_addr);
12312 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12316 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
12317 rdev, dev, mac_addr, sinfo) < 0) {
12322 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12323 NL80211_MCGRP_MLME, gfp);
12325 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
12327 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12328 enum nl80211_connect_failed_reason reason,
12331 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12332 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12333 struct sk_buff *msg;
12336 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12340 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12346 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12347 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12348 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12349 goto nla_put_failure;
12351 genlmsg_end(msg, hdr);
12353 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12354 NL80211_MCGRP_MLME, gfp);
12358 genlmsg_cancel(msg, hdr);
12361 EXPORT_SYMBOL(cfg80211_conn_failed);
12363 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12364 const u8 *addr, gfp_t gfp)
12366 struct wireless_dev *wdev = dev->ieee80211_ptr;
12367 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12368 struct sk_buff *msg;
12370 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
12375 msg = nlmsg_new(100, gfp);
12379 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12385 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12386 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12387 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12388 goto nla_put_failure;
12390 genlmsg_end(msg, hdr);
12391 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12395 genlmsg_cancel(msg, hdr);
12400 bool cfg80211_rx_spurious_frame(struct net_device *dev,
12401 const u8 *addr, gfp_t gfp)
12403 struct wireless_dev *wdev = dev->ieee80211_ptr;
12406 trace_cfg80211_rx_spurious_frame(dev, addr);
12408 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12409 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12410 trace_cfg80211_return_bool(false);
12413 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12415 trace_cfg80211_return_bool(ret);
12418 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
12420 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12421 const u8 *addr, gfp_t gfp)
12423 struct wireless_dev *wdev = dev->ieee80211_ptr;
12426 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12428 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12429 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12430 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12431 trace_cfg80211_return_bool(false);
12434 ret = __nl80211_unexpected_frame(dev,
12435 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12437 trace_cfg80211_return_bool(ret);
12440 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
12442 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
12443 struct wireless_dev *wdev, u32 nlportid,
12444 int freq, int sig_dbm,
12445 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
12447 struct net_device *netdev = wdev->netdev;
12448 struct sk_buff *msg;
12451 msg = nlmsg_new(100 + len, gfp);
12455 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12461 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12462 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12463 netdev->ifindex)) ||
12464 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12465 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12467 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12468 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12470 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
12471 goto nla_put_failure;
12473 genlmsg_end(msg, hdr);
12475 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12478 genlmsg_cancel(msg, hdr);
12483 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12484 const u8 *buf, size_t len, bool ack, gfp_t gfp)
12486 struct wiphy *wiphy = wdev->wiphy;
12487 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12488 struct net_device *netdev = wdev->netdev;
12489 struct sk_buff *msg;
12492 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12494 msg = nlmsg_new(100 + len, gfp);
12498 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
12504 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12505 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12506 netdev->ifindex)) ||
12507 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12508 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12509 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12510 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12511 goto nla_put_failure;
12513 genlmsg_end(msg, hdr);
12515 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12516 NL80211_MCGRP_MLME, gfp);
12520 genlmsg_cancel(msg, hdr);
12523 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
12525 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12526 const char *mac, gfp_t gfp)
12528 struct wireless_dev *wdev = dev->ieee80211_ptr;
12529 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12530 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12536 cb = (void **)msg->cb;
12538 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12544 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12545 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12546 goto nla_put_failure;
12548 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
12549 goto nla_put_failure;
12551 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12553 goto nla_put_failure;
12563 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12565 void **cb = (void **)msg->cb;
12566 struct cfg80211_registered_device *rdev = cb[2];
12568 nla_nest_end(msg, cb[1]);
12569 genlmsg_end(msg, cb[0]);
12571 memset(msg->cb, 0, sizeof(msg->cb));
12573 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12574 NL80211_MCGRP_MLME, gfp);
12577 void cfg80211_cqm_rssi_notify(struct net_device *dev,
12578 enum nl80211_cqm_rssi_threshold_event rssi_event,
12581 struct sk_buff *msg;
12583 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12585 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12586 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12589 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12593 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12595 goto nla_put_failure;
12597 cfg80211_send_cqm(msg, gfp);
12604 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
12606 void cfg80211_cqm_txe_notify(struct net_device *dev,
12607 const u8 *peer, u32 num_packets,
12608 u32 rate, u32 intvl, gfp_t gfp)
12610 struct sk_buff *msg;
12612 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12616 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12617 goto nla_put_failure;
12619 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12620 goto nla_put_failure;
12622 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12623 goto nla_put_failure;
12625 cfg80211_send_cqm(msg, gfp);
12631 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12633 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12634 const u8 *peer, u32 num_packets, gfp_t gfp)
12636 struct sk_buff *msg;
12638 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12640 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12644 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12645 goto nla_put_failure;
12647 cfg80211_send_cqm(msg, gfp);
12653 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12655 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12657 struct sk_buff *msg;
12659 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12663 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12664 goto nla_put_failure;
12666 cfg80211_send_cqm(msg, gfp);
12672 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12674 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12675 struct net_device *netdev, const u8 *bssid,
12676 const u8 *replay_ctr, gfp_t gfp)
12678 struct sk_buff *msg;
12679 struct nlattr *rekey_attr;
12682 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12686 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12692 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12693 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12694 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12695 goto nla_put_failure;
12697 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12699 goto nla_put_failure;
12701 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12702 NL80211_REPLAY_CTR_LEN, replay_ctr))
12703 goto nla_put_failure;
12705 nla_nest_end(msg, rekey_attr);
12707 genlmsg_end(msg, hdr);
12709 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12710 NL80211_MCGRP_MLME, gfp);
12714 genlmsg_cancel(msg, hdr);
12718 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12719 const u8 *replay_ctr, gfp_t gfp)
12721 struct wireless_dev *wdev = dev->ieee80211_ptr;
12722 struct wiphy *wiphy = wdev->wiphy;
12723 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12725 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12726 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12728 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12731 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12732 struct net_device *netdev, int index,
12733 const u8 *bssid, bool preauth, gfp_t gfp)
12735 struct sk_buff *msg;
12736 struct nlattr *attr;
12739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12743 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12749 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12750 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12751 goto nla_put_failure;
12753 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12755 goto nla_put_failure;
12757 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12758 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12760 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12761 goto nla_put_failure;
12763 nla_nest_end(msg, attr);
12765 genlmsg_end(msg, hdr);
12767 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12768 NL80211_MCGRP_MLME, gfp);
12772 genlmsg_cancel(msg, hdr);
12776 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12777 const u8 *bssid, bool preauth, gfp_t gfp)
12779 struct wireless_dev *wdev = dev->ieee80211_ptr;
12780 struct wiphy *wiphy = wdev->wiphy;
12781 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12783 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12784 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12786 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12788 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12789 struct net_device *netdev,
12790 struct cfg80211_chan_def *chandef,
12792 enum nl80211_commands notif,
12795 struct sk_buff *msg;
12798 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12802 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
12808 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12809 goto nla_put_failure;
12811 if (nl80211_send_chandef(msg, chandef))
12812 goto nla_put_failure;
12814 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12815 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12816 goto nla_put_failure;
12818 genlmsg_end(msg, hdr);
12820 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12821 NL80211_MCGRP_MLME, gfp);
12825 genlmsg_cancel(msg, hdr);
12829 void cfg80211_ch_switch_notify(struct net_device *dev,
12830 struct cfg80211_chan_def *chandef)
12832 struct wireless_dev *wdev = dev->ieee80211_ptr;
12833 struct wiphy *wiphy = wdev->wiphy;
12834 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12836 ASSERT_WDEV_LOCK(wdev);
12838 trace_cfg80211_ch_switch_notify(dev, chandef);
12840 wdev->chandef = *chandef;
12841 wdev->preset_chandef = *chandef;
12843 if (wdev->iftype == NL80211_IFTYPE_STATION &&
12844 !WARN_ON(!wdev->current_bss))
12845 wdev->current_bss->pub.channel = chandef->chan;
12847 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12848 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
12850 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12852 void cfg80211_ch_switch_started_notify(struct net_device *dev,
12853 struct cfg80211_chan_def *chandef,
12856 struct wireless_dev *wdev = dev->ieee80211_ptr;
12857 struct wiphy *wiphy = wdev->wiphy;
12858 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12860 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12862 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12863 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12865 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12868 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
12869 const struct cfg80211_chan_def *chandef,
12870 enum nl80211_radar_event event,
12871 struct net_device *netdev, gfp_t gfp)
12873 struct sk_buff *msg;
12876 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12880 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12886 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12887 goto nla_put_failure;
12889 /* NOP and radar events don't need a netdev parameter */
12891 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12893 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12894 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12895 goto nla_put_failure;
12898 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12899 goto nla_put_failure;
12901 if (nl80211_send_chandef(msg, chandef))
12902 goto nla_put_failure;
12904 genlmsg_end(msg, hdr);
12906 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12907 NL80211_MCGRP_MLME, gfp);
12911 genlmsg_cancel(msg, hdr);
12915 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12916 u64 cookie, bool acked, gfp_t gfp)
12918 struct wireless_dev *wdev = dev->ieee80211_ptr;
12919 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12920 struct sk_buff *msg;
12923 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12925 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12930 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12936 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12937 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12938 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12939 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12940 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12941 goto nla_put_failure;
12943 genlmsg_end(msg, hdr);
12945 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12946 NL80211_MCGRP_MLME, gfp);
12950 genlmsg_cancel(msg, hdr);
12953 EXPORT_SYMBOL(cfg80211_probe_status);
12955 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12956 const u8 *frame, size_t len,
12957 int freq, int sig_dbm)
12959 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12960 struct sk_buff *msg;
12962 struct cfg80211_beacon_registration *reg;
12964 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12966 spin_lock_bh(&rdev->beacon_registrations_lock);
12967 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12968 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12970 spin_unlock_bh(&rdev->beacon_registrations_lock);
12974 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12976 goto nla_put_failure;
12978 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12980 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12982 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12983 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12984 goto nla_put_failure;
12986 genlmsg_end(msg, hdr);
12988 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12990 spin_unlock_bh(&rdev->beacon_registrations_lock);
12994 spin_unlock_bh(&rdev->beacon_registrations_lock);
12996 genlmsg_cancel(msg, hdr);
12999 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13002 static int cfg80211_net_detect_results(struct sk_buff *msg,
13003 struct cfg80211_wowlan_wakeup *wakeup)
13005 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13006 struct nlattr *nl_results, *nl_match, *nl_freqs;
13009 nl_results = nla_nest_start(
13010 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13014 for (i = 0; i < nd->n_matches; i++) {
13015 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13017 nl_match = nla_nest_start(msg, i);
13021 /* The SSID attribute is optional in nl80211, but for
13022 * simplicity reasons it's always present in the
13023 * cfg80211 structure. If a driver can't pass the
13024 * SSID, that needs to be changed. A zero length SSID
13025 * is still a valid SSID (wildcard), so it cannot be
13026 * used for this purpose.
13028 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13029 match->ssid.ssid)) {
13030 nla_nest_cancel(msg, nl_match);
13034 if (match->n_channels) {
13035 nl_freqs = nla_nest_start(
13036 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13038 nla_nest_cancel(msg, nl_match);
13042 for (j = 0; j < match->n_channels; j++) {
13043 if (nla_put_u32(msg, j, match->channels[j])) {
13044 nla_nest_cancel(msg, nl_freqs);
13045 nla_nest_cancel(msg, nl_match);
13050 nla_nest_end(msg, nl_freqs);
13053 nla_nest_end(msg, nl_match);
13057 nla_nest_end(msg, nl_results);
13061 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13062 struct cfg80211_wowlan_wakeup *wakeup,
13065 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13066 struct sk_buff *msg;
13070 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13073 size += wakeup->packet_present_len;
13075 msg = nlmsg_new(size, gfp);
13079 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13083 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13084 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13087 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13088 wdev->netdev->ifindex))
13092 struct nlattr *reasons;
13094 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
13098 if (wakeup->disconnect &&
13099 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13101 if (wakeup->magic_pkt &&
13102 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13104 if (wakeup->gtk_rekey_failure &&
13105 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13107 if (wakeup->eap_identity_req &&
13108 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13110 if (wakeup->four_way_handshake &&
13111 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13113 if (wakeup->rfkill_release &&
13114 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13117 if (wakeup->pattern_idx >= 0 &&
13118 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13119 wakeup->pattern_idx))
13122 if (wakeup->tcp_match &&
13123 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13126 if (wakeup->tcp_connlost &&
13127 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13130 if (wakeup->tcp_nomoretokens &&
13132 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13135 if (wakeup->packet) {
13136 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13137 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13139 if (!wakeup->packet_80211) {
13141 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13143 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13146 if (wakeup->packet_len &&
13147 nla_put_u32(msg, len_attr, wakeup->packet_len))
13150 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13155 if (wakeup->net_detect &&
13156 cfg80211_net_detect_results(msg, wakeup))
13159 nla_nest_end(msg, reasons);
13162 genlmsg_end(msg, hdr);
13164 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13165 NL80211_MCGRP_MLME, gfp);
13171 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13174 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13175 enum nl80211_tdls_operation oper,
13176 u16 reason_code, gfp_t gfp)
13178 struct wireless_dev *wdev = dev->ieee80211_ptr;
13179 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13180 struct sk_buff *msg;
13183 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13186 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13190 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13196 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13197 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13198 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13199 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13200 (reason_code > 0 &&
13201 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13202 goto nla_put_failure;
13204 genlmsg_end(msg, hdr);
13206 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13207 NL80211_MCGRP_MLME, gfp);
13211 genlmsg_cancel(msg, hdr);
13214 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13216 static int nl80211_netlink_notify(struct notifier_block * nb,
13217 unsigned long state,
13220 struct netlink_notify *notify = _notify;
13221 struct cfg80211_registered_device *rdev;
13222 struct wireless_dev *wdev;
13223 struct cfg80211_beacon_registration *reg, *tmp;
13225 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
13226 return NOTIFY_DONE;
13230 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
13231 bool schedule_destroy_work = false;
13232 struct cfg80211_sched_scan_request *sched_scan_req =
13233 rcu_dereference(rdev->sched_scan_req);
13235 if (sched_scan_req && notify->portid &&
13236 sched_scan_req->owner_nlportid == notify->portid) {
13237 sched_scan_req->owner_nlportid = 0;
13239 if (rdev->ops->sched_scan_stop &&
13240 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13241 schedule_work(&rdev->sched_scan_stop_wk);
13244 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
13245 cfg80211_mlme_unregister_socket(wdev, notify->portid);
13247 if (wdev->owner_nlportid == notify->portid)
13248 schedule_destroy_work = true;
13251 spin_lock_bh(&rdev->beacon_registrations_lock);
13252 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13254 if (reg->nlportid == notify->portid) {
13255 list_del(®->list);
13260 spin_unlock_bh(&rdev->beacon_registrations_lock);
13262 if (schedule_destroy_work) {
13263 struct cfg80211_iface_destroy *destroy;
13265 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13267 destroy->nlportid = notify->portid;
13268 spin_lock(&rdev->destroy_list_lock);
13269 list_add(&destroy->list, &rdev->destroy_list);
13270 spin_unlock(&rdev->destroy_list_lock);
13271 schedule_work(&rdev->destroy_work);
13279 * It is possible that the user space process that is controlling the
13280 * indoor setting disappeared, so notify the regulatory core.
13282 regulatory_netlink_notify(notify->portid);
13286 static struct notifier_block nl80211_netlink_notifier = {
13287 .notifier_call = nl80211_netlink_notify,
13290 void cfg80211_ft_event(struct net_device *netdev,
13291 struct cfg80211_ft_event_params *ft_event)
13293 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
13294 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13295 struct sk_buff *msg;
13298 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13300 if (!ft_event->target_ap)
13303 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
13307 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
13311 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13312 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13313 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13316 if (ft_event->ies &&
13317 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13319 if (ft_event->ric_ies &&
13320 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13321 ft_event->ric_ies))
13324 genlmsg_end(msg, hdr);
13326 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13327 NL80211_MCGRP_MLME, GFP_KERNEL);
13332 EXPORT_SYMBOL(cfg80211_ft_event);
13334 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13336 struct cfg80211_registered_device *rdev;
13337 struct sk_buff *msg;
13341 rdev = wiphy_to_rdev(wdev->wiphy);
13342 if (!rdev->crit_proto_nlportid)
13345 nlportid = rdev->crit_proto_nlportid;
13346 rdev->crit_proto_nlportid = 0;
13348 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13352 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13354 goto nla_put_failure;
13356 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13357 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13358 goto nla_put_failure;
13360 genlmsg_end(msg, hdr);
13362 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13367 genlmsg_cancel(msg, hdr);
13371 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13373 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13375 struct wiphy *wiphy = wdev->wiphy;
13376 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13377 struct sk_buff *msg;
13380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13384 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13388 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13389 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13390 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13393 genlmsg_end(msg, hdr);
13395 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13396 NL80211_MCGRP_MLME, GFP_KERNEL);
13402 /* initialisation/exit functions */
13404 int nl80211_init(void)
13408 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13413 err = netlink_register_notifier(&nl80211_netlink_notifier);
13419 genl_unregister_family(&nl80211_fam);
13423 void nl80211_exit(void)
13425 netlink_unregister_notifier(&nl80211_netlink_notifier);
13426 genl_unregister_family(&nl80211_fam);