2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
6 * Copyright 2015-2016 Intel Deutschland GmbH
10 #include <linux/module.h>
11 #include <linux/err.h>
12 #include <linux/slab.h>
13 #include <linux/list.h>
14 #include <linux/if_ether.h>
15 #include <linux/ieee80211.h>
16 #include <linux/nl80211.h>
17 #include <linux/rtnetlink.h>
18 #include <linux/netlink.h>
19 #include <linux/etherdevice.h>
20 #include <net/net_namespace.h>
21 #include <net/genetlink.h>
22 #include <net/cfg80211.h>
24 #include <net/inet_connection_sock.h>
30 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
35 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
37 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
38 struct genl_info *info);
40 /* the netlink family */
41 static struct genl_family nl80211_fam = {
42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
46 .maxattr = NL80211_ATTR_MAX,
48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
52 /* multicast groups */
53 enum nl80211_multicast_groups {
56 NL80211_MCGRP_REGULATORY,
59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
62 static const struct genl_multicast_group nl80211_mcgrps[] = {
63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
68 #ifdef CONFIG_NL80211_TESTMODE
69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
73 /* returns ERR_PTR values */
74 static struct wireless_dev *
75 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
100 if (wiphy_net(&rdev->wiphy) != netns)
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
106 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
124 return ERR_PTR(-ENODEV);
127 static struct cfg80211_registered_device *
128 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
135 if (!attrs[NL80211_ATTR_WIPHY] &&
136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
138 return ERR_PTR(-EINVAL);
140 if (attrs[NL80211_ATTR_WIPHY])
141 rdev = cfg80211_rdev_by_wiphy_idx(
142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
151 /* make sure wdev exists */
152 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
153 if (wdev->identifier != (u32)wdev_id)
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 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 /* policy for the attributes */
214 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
215 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
216 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
218 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
220 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
221 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
222 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
224 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
228 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
230 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
231 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
233 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
237 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
238 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
240 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
241 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
242 .len = WLAN_MAX_KEY_LEN },
243 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
244 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
245 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
246 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
247 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
250 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
251 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
253 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
255 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
257 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
258 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
259 .len = NL80211_MAX_SUPP_RATES },
260 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
261 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
262 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
263 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
264 .len = IEEE80211_MAX_MESH_ID_LEN },
265 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
267 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
268 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
270 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
273 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
274 .len = NL80211_MAX_SUPP_RATES },
275 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
277 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
278 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
280 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
282 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
283 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
284 .len = IEEE80211_MAX_DATA_LEN },
285 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
286 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
288 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_SSID_LEN },
290 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
291 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
292 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
293 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
294 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
295 [NL80211_ATTR_STA_FLAGS2] = {
296 .len = sizeof(struct nl80211_sta_flag_update),
298 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
299 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
300 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
301 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
302 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
303 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
304 [NL80211_ATTR_PID] = { .type = NLA_U32 },
305 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
306 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
307 .len = WLAN_PMKID_LEN },
308 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
309 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
310 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
311 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
313 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
314 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
315 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
316 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
317 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
318 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
319 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
320 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
321 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
322 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
323 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
324 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
325 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
326 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
327 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
328 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
329 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
330 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
331 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
332 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
334 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
335 .len = IEEE80211_MAX_DATA_LEN },
336 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
337 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
338 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
344 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
358 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
359 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
360 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
361 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
362 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
363 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
364 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
365 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
366 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
367 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
368 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
369 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
370 .len = NL80211_VHT_CAPABILITY_LEN,
372 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
373 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
374 .len = IEEE80211_MAX_DATA_LEN },
375 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
376 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
377 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
378 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
379 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
380 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
381 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
382 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
383 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
384 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
385 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
387 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
388 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
389 .len = IEEE80211_QOS_MAP_LEN_MAX },
390 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
391 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
392 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
393 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
394 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
395 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
396 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
397 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
398 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
399 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
400 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
401 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
402 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
403 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
404 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
405 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
406 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
407 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
408 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
409 .len = VHT_MUMIMO_GROUPS_DATA_LEN
411 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
414 /* policy for the key attributes */
415 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
416 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
417 [NL80211_KEY_IDX] = { .type = NLA_U8 },
418 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
419 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
420 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
421 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
422 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
423 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
426 /* policy for the key default flags */
427 static const struct nla_policy
428 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
429 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
430 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
433 /* policy for WoWLAN attributes */
434 static const struct nla_policy
435 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
436 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
438 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
439 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
440 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
441 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
442 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
443 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
444 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
445 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
448 static const struct nla_policy
449 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
450 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
451 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
452 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
453 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
454 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
455 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
457 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
459 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
460 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
462 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
463 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
464 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
467 /* policy for coalesce rule attributes */
468 static const struct nla_policy
469 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
470 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
471 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
472 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
475 /* policy for GTK rekey offload attributes */
476 static const struct nla_policy
477 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
478 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
479 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
480 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
483 static const struct nla_policy
484 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
485 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
486 .len = IEEE80211_MAX_SSID_LEN },
487 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
490 static const struct nla_policy
491 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
492 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
493 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
496 static const struct nla_policy
497 nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
498 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
499 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
500 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
501 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
505 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
506 struct netlink_callback *cb,
507 struct cfg80211_registered_device **rdev,
508 struct wireless_dev **wdev)
515 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
516 nl80211_fam.attrbuf, nl80211_fam.maxattr,
521 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
522 nl80211_fam.attrbuf);
524 err = PTR_ERR(*wdev);
527 *rdev = wiphy_to_rdev((*wdev)->wiphy);
528 /* 0 is the first index - add 1 to parse only once */
529 cb->args[0] = (*rdev)->wiphy_idx + 1;
530 cb->args[1] = (*wdev)->identifier;
532 /* subtract the 1 again here */
533 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
534 struct wireless_dev *tmp;
540 *rdev = wiphy_to_rdev(wiphy);
543 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
544 if (tmp->identifier == cb->args[1]) {
562 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
568 static bool is_valid_ie_attr(const struct nlattr *attr)
576 pos = nla_data(attr);
597 /* message building helper */
598 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
601 /* since there is no private header just add the generic one */
602 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
605 static int nl80211_msg_put_channel(struct sk_buff *msg,
606 struct ieee80211_channel *chan,
609 /* Some channels must be completely excluded from the
610 * list to protect old user-space tools from breaking
612 if (!large && chan->flags &
613 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
616 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
618 goto nla_put_failure;
620 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
622 goto nla_put_failure;
623 if (chan->flags & IEEE80211_CHAN_NO_IR) {
624 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
625 goto nla_put_failure;
626 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
627 goto nla_put_failure;
629 if (chan->flags & IEEE80211_CHAN_RADAR) {
630 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
631 goto nla_put_failure;
635 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
637 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
639 goto nla_put_failure;
640 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
642 goto nla_put_failure;
644 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
646 goto nla_put_failure;
651 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
652 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
653 goto nla_put_failure;
654 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
655 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
656 goto nla_put_failure;
657 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
658 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
659 goto nla_put_failure;
660 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
661 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
662 goto nla_put_failure;
663 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
664 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
665 goto nla_put_failure;
666 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
667 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
668 goto nla_put_failure;
669 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
670 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
671 goto nla_put_failure;
672 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
673 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
674 goto nla_put_failure;
677 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
678 DBM_TO_MBM(chan->max_power)))
679 goto nla_put_failure;
687 /* netlink command implementations */
694 bool def_uni, def_multi;
697 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
699 struct nlattr *tb[NL80211_KEY_MAX + 1];
700 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
705 k->def = !!tb[NL80211_KEY_DEFAULT];
706 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
715 if (tb[NL80211_KEY_IDX])
716 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
718 if (tb[NL80211_KEY_DATA]) {
719 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
720 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
723 if (tb[NL80211_KEY_SEQ]) {
724 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
725 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
728 if (tb[NL80211_KEY_CIPHER])
729 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
731 if (tb[NL80211_KEY_TYPE]) {
732 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
733 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
737 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
738 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
740 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
741 tb[NL80211_KEY_DEFAULT_TYPES],
742 nl80211_key_default_policy);
746 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
747 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
753 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
755 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
756 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
757 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
760 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
761 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
762 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
765 if (info->attrs[NL80211_ATTR_KEY_IDX])
766 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
768 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
769 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
771 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
772 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
781 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
782 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
783 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
787 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
788 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
789 int err = nla_parse_nested(
790 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
791 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
792 nl80211_key_default_policy);
796 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
797 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
803 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
807 memset(k, 0, sizeof(*k));
811 if (info->attrs[NL80211_ATTR_KEY])
812 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
814 err = nl80211_parse_key_old(info, k);
819 if (k->def && k->defmgmt)
823 if (k->def_uni || !k->def_multi)
829 if (k->idx < 4 || k->idx > 5)
832 if (k->idx < 0 || k->idx > 3)
835 if (k->idx < 0 || k->idx > 5)
843 static struct cfg80211_cached_keys *
844 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
845 struct nlattr *keys, bool *no_ht)
847 struct key_parse parse;
849 struct cfg80211_cached_keys *result;
850 int rem, err, def = 0;
852 result = kzalloc(sizeof(*result), GFP_KERNEL);
854 return ERR_PTR(-ENOMEM);
857 result->defmgmt = -1;
859 nla_for_each_nested(key, keys, rem) {
860 memset(&parse, 0, sizeof(parse));
863 err = nl80211_parse_key_new(key, &parse);
869 if (parse.idx < 0 || parse.idx > 4)
875 result->def = parse.idx;
876 if (!parse.def_uni || !parse.def_multi)
878 } else if (parse.defmgmt)
880 err = cfg80211_validate_key_settings(rdev, &parse.p,
881 parse.idx, false, NULL);
884 result->params[parse.idx].cipher = parse.p.cipher;
885 result->params[parse.idx].key_len = parse.p.key_len;
886 result->params[parse.idx].key = result->data[parse.idx];
887 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
889 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
890 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
902 static int nl80211_key_allowed(struct wireless_dev *wdev)
904 ASSERT_WDEV_LOCK(wdev);
906 switch (wdev->iftype) {
907 case NL80211_IFTYPE_AP:
908 case NL80211_IFTYPE_AP_VLAN:
909 case NL80211_IFTYPE_P2P_GO:
910 case NL80211_IFTYPE_MESH_POINT:
912 case NL80211_IFTYPE_ADHOC:
913 case NL80211_IFTYPE_STATION:
914 case NL80211_IFTYPE_P2P_CLIENT:
915 if (!wdev->current_bss)
918 case NL80211_IFTYPE_UNSPECIFIED:
919 case NL80211_IFTYPE_OCB:
920 case NL80211_IFTYPE_MONITOR:
921 case NL80211_IFTYPE_P2P_DEVICE:
922 case NL80211_IFTYPE_WDS:
923 case NUM_NL80211_IFTYPES:
930 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
933 struct ieee80211_channel *chan;
937 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
938 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
943 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
945 struct nlattr *nl_modes = nla_nest_start(msg, attr);
949 goto nla_put_failure;
953 if ((ifmodes & 1) && nla_put_flag(msg, i))
954 goto nla_put_failure;
959 nla_nest_end(msg, nl_modes);
966 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
970 struct nlattr *nl_combis;
973 nl_combis = nla_nest_start(msg,
974 NL80211_ATTR_INTERFACE_COMBINATIONS);
976 goto nla_put_failure;
978 for (i = 0; i < wiphy->n_iface_combinations; i++) {
979 const struct ieee80211_iface_combination *c;
980 struct nlattr *nl_combi, *nl_limits;
982 c = &wiphy->iface_combinations[i];
984 nl_combi = nla_nest_start(msg, i + 1);
986 goto nla_put_failure;
988 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
990 goto nla_put_failure;
992 for (j = 0; j < c->n_limits; j++) {
993 struct nlattr *nl_limit;
995 nl_limit = nla_nest_start(msg, j + 1);
997 goto nla_put_failure;
998 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1000 goto nla_put_failure;
1001 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1002 c->limits[j].types))
1003 goto nla_put_failure;
1004 nla_nest_end(msg, nl_limit);
1007 nla_nest_end(msg, nl_limits);
1009 if (c->beacon_int_infra_match &&
1010 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1011 goto nla_put_failure;
1012 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1013 c->num_different_channels) ||
1014 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1016 goto nla_put_failure;
1018 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1019 c->radar_detect_widths) ||
1020 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1021 c->radar_detect_regions)))
1022 goto nla_put_failure;
1024 nla_nest_end(msg, nl_combi);
1027 nla_nest_end(msg, nl_combis);
1035 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1036 struct sk_buff *msg)
1038 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1039 struct nlattr *nl_tcp;
1044 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1048 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1049 tcp->data_payload_max))
1052 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1053 tcp->data_payload_max))
1056 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1059 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1060 sizeof(*tcp->tok), tcp->tok))
1063 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1064 tcp->data_interval_max))
1067 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1068 tcp->wake_payload_max))
1071 nla_nest_end(msg, nl_tcp);
1075 static int nl80211_send_wowlan(struct sk_buff *msg,
1076 struct cfg80211_registered_device *rdev,
1079 struct nlattr *nl_wowlan;
1081 if (!rdev->wiphy.wowlan)
1084 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1088 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1090 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1092 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1094 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1096 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1098 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1099 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1100 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1101 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1102 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1103 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1106 if (rdev->wiphy.wowlan->n_patterns) {
1107 struct nl80211_pattern_support pat = {
1108 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1109 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1110 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1111 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1114 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1119 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1120 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1121 rdev->wiphy.wowlan->max_nd_match_sets))
1124 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1127 nla_nest_end(msg, nl_wowlan);
1133 static int nl80211_send_coalesce(struct sk_buff *msg,
1134 struct cfg80211_registered_device *rdev)
1136 struct nl80211_coalesce_rule_support rule;
1138 if (!rdev->wiphy.coalesce)
1141 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1142 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1143 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1144 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1145 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1146 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1148 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1154 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1155 struct ieee80211_supported_band *sband)
1157 struct nlattr *nl_rates, *nl_rate;
1158 struct ieee80211_rate *rate;
1162 if (sband->ht_cap.ht_supported &&
1163 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1164 sizeof(sband->ht_cap.mcs),
1165 &sband->ht_cap.mcs) ||
1166 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1167 sband->ht_cap.cap) ||
1168 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1169 sband->ht_cap.ampdu_factor) ||
1170 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1171 sband->ht_cap.ampdu_density)))
1175 if (sband->vht_cap.vht_supported &&
1176 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1177 sizeof(sband->vht_cap.vht_mcs),
1178 &sband->vht_cap.vht_mcs) ||
1179 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1180 sband->vht_cap.cap)))
1184 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1188 for (i = 0; i < sband->n_bitrates; i++) {
1189 nl_rate = nla_nest_start(msg, i);
1193 rate = &sband->bitrates[i];
1194 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1197 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1199 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1202 nla_nest_end(msg, nl_rate);
1205 nla_nest_end(msg, nl_rates);
1211 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1212 const struct ieee80211_txrx_stypes *mgmt_stypes)
1215 struct nlattr *nl_ftypes, *nl_ifs;
1216 enum nl80211_iftype ift;
1222 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1226 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1227 nl_ftypes = nla_nest_start(msg, ift);
1231 stypes = mgmt_stypes[ift].tx;
1234 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1235 (i << 4) | IEEE80211_FTYPE_MGMT))
1240 nla_nest_end(msg, nl_ftypes);
1243 nla_nest_end(msg, nl_ifs);
1245 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1249 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1250 nl_ftypes = nla_nest_start(msg, ift);
1254 stypes = mgmt_stypes[ift].rx;
1257 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1258 (i << 4) | IEEE80211_FTYPE_MGMT))
1263 nla_nest_end(msg, nl_ftypes);
1265 nla_nest_end(msg, nl_ifs);
1270 struct nl80211_dump_wiphy_state {
1273 long split_start, band_start, chan_start, capa_start;
1277 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1278 enum nl80211_commands cmd,
1279 struct sk_buff *msg, u32 portid, u32 seq,
1280 int flags, struct nl80211_dump_wiphy_state *state)
1283 struct nlattr *nl_bands, *nl_band;
1284 struct nlattr *nl_freqs, *nl_freq;
1285 struct nlattr *nl_cmds;
1286 enum nl80211_band band;
1287 struct ieee80211_channel *chan;
1289 const struct ieee80211_txrx_stypes *mgmt_stypes =
1290 rdev->wiphy.mgmt_stypes;
1293 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1297 if (WARN_ON(!state))
1300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1301 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1302 wiphy_name(&rdev->wiphy)) ||
1303 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1304 cfg80211_rdev_list_generation))
1305 goto nla_put_failure;
1307 if (cmd != NL80211_CMD_NEW_WIPHY)
1310 switch (state->split_start) {
1312 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1313 rdev->wiphy.retry_short) ||
1314 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1315 rdev->wiphy.retry_long) ||
1316 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1317 rdev->wiphy.frag_threshold) ||
1318 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1319 rdev->wiphy.rts_threshold) ||
1320 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1321 rdev->wiphy.coverage_class) ||
1322 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1323 rdev->wiphy.max_scan_ssids) ||
1324 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1325 rdev->wiphy.max_sched_scan_ssids) ||
1326 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1327 rdev->wiphy.max_scan_ie_len) ||
1328 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1329 rdev->wiphy.max_sched_scan_ie_len) ||
1330 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1331 rdev->wiphy.max_match_sets) ||
1332 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1333 rdev->wiphy.max_sched_scan_plans) ||
1334 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1335 rdev->wiphy.max_sched_scan_plan_interval) ||
1336 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1337 rdev->wiphy.max_sched_scan_plan_iterations))
1338 goto nla_put_failure;
1340 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1341 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1342 goto nla_put_failure;
1343 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1344 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1345 goto nla_put_failure;
1346 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1347 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1348 goto nla_put_failure;
1349 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1350 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1351 goto nla_put_failure;
1352 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1353 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1354 goto nla_put_failure;
1355 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1356 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1357 goto nla_put_failure;
1358 state->split_start++;
1362 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1363 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1364 rdev->wiphy.cipher_suites))
1365 goto nla_put_failure;
1367 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1368 rdev->wiphy.max_num_pmkids))
1369 goto nla_put_failure;
1371 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1372 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1373 goto nla_put_failure;
1375 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1376 rdev->wiphy.available_antennas_tx) ||
1377 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1378 rdev->wiphy.available_antennas_rx))
1379 goto nla_put_failure;
1381 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1382 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1383 rdev->wiphy.probe_resp_offload))
1384 goto nla_put_failure;
1386 if ((rdev->wiphy.available_antennas_tx ||
1387 rdev->wiphy.available_antennas_rx) &&
1388 rdev->ops->get_antenna) {
1389 u32 tx_ant = 0, rx_ant = 0;
1392 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1394 if (nla_put_u32(msg,
1395 NL80211_ATTR_WIPHY_ANTENNA_TX,
1398 NL80211_ATTR_WIPHY_ANTENNA_RX,
1400 goto nla_put_failure;
1404 state->split_start++;
1408 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1409 rdev->wiphy.interface_modes))
1410 goto nla_put_failure;
1411 state->split_start++;
1415 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1417 goto nla_put_failure;
1419 for (band = state->band_start;
1420 band < NUM_NL80211_BANDS; band++) {
1421 struct ieee80211_supported_band *sband;
1423 sband = rdev->wiphy.bands[band];
1428 nl_band = nla_nest_start(msg, band);
1430 goto nla_put_failure;
1432 switch (state->chan_start) {
1434 if (nl80211_send_band_rateinfo(msg, sband))
1435 goto nla_put_failure;
1436 state->chan_start++;
1440 /* add frequencies */
1441 nl_freqs = nla_nest_start(
1442 msg, NL80211_BAND_ATTR_FREQS);
1444 goto nla_put_failure;
1446 for (i = state->chan_start - 1;
1447 i < sband->n_channels;
1449 nl_freq = nla_nest_start(msg, i);
1451 goto nla_put_failure;
1453 chan = &sband->channels[i];
1455 if (nl80211_msg_put_channel(
1458 goto nla_put_failure;
1460 nla_nest_end(msg, nl_freq);
1464 if (i < sband->n_channels)
1465 state->chan_start = i + 2;
1467 state->chan_start = 0;
1468 nla_nest_end(msg, nl_freqs);
1471 nla_nest_end(msg, nl_band);
1474 /* start again here */
1475 if (state->chan_start)
1480 nla_nest_end(msg, nl_bands);
1482 if (band < NUM_NL80211_BANDS)
1483 state->band_start = band + 1;
1485 state->band_start = 0;
1487 /* if bands & channels are done, continue outside */
1488 if (state->band_start == 0 && state->chan_start == 0)
1489 state->split_start++;
1493 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1495 goto nla_put_failure;
1498 #define CMD(op, n) \
1500 if (rdev->ops->op) { \
1502 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1503 goto nla_put_failure; \
1507 CMD(add_virtual_intf, NEW_INTERFACE);
1508 CMD(change_virtual_intf, SET_INTERFACE);
1509 CMD(add_key, NEW_KEY);
1510 CMD(start_ap, START_AP);
1511 CMD(add_station, NEW_STATION);
1512 CMD(add_mpath, NEW_MPATH);
1513 CMD(update_mesh_config, SET_MESH_CONFIG);
1514 CMD(change_bss, SET_BSS);
1515 CMD(auth, AUTHENTICATE);
1516 CMD(assoc, ASSOCIATE);
1517 CMD(deauth, DEAUTHENTICATE);
1518 CMD(disassoc, DISASSOCIATE);
1519 CMD(join_ibss, JOIN_IBSS);
1520 CMD(join_mesh, JOIN_MESH);
1521 CMD(set_pmksa, SET_PMKSA);
1522 CMD(del_pmksa, DEL_PMKSA);
1523 CMD(flush_pmksa, FLUSH_PMKSA);
1524 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1525 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1526 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1527 CMD(mgmt_tx, FRAME);
1528 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1529 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1531 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1532 goto nla_put_failure;
1534 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1535 rdev->ops->join_mesh) {
1537 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1538 goto nla_put_failure;
1540 CMD(set_wds_peer, SET_WDS_PEER);
1541 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1542 CMD(tdls_mgmt, TDLS_MGMT);
1543 CMD(tdls_oper, TDLS_OPER);
1545 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1546 CMD(sched_scan_start, START_SCHED_SCAN);
1547 CMD(probe_client, PROBE_CLIENT);
1548 CMD(set_noack_map, SET_NOACK_MAP);
1549 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1551 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1552 goto nla_put_failure;
1554 CMD(start_p2p_device, START_P2P_DEVICE);
1555 CMD(set_mcast_rate, SET_MCAST_RATE);
1556 #ifdef CONFIG_NL80211_TESTMODE
1557 CMD(testmode_cmd, TESTMODE);
1560 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1561 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1562 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1563 CMD(channel_switch, CHANNEL_SWITCH);
1564 CMD(set_qos_map, SET_QOS_MAP);
1565 if (rdev->wiphy.features &
1566 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1567 CMD(add_tx_ts, ADD_TX_TS);
1569 /* add into the if now */
1572 if (rdev->ops->connect || rdev->ops->auth) {
1574 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1575 goto nla_put_failure;
1578 if (rdev->ops->disconnect || rdev->ops->deauth) {
1580 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1581 goto nla_put_failure;
1584 nla_nest_end(msg, nl_cmds);
1585 state->split_start++;
1589 if (rdev->ops->remain_on_channel &&
1590 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1592 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1593 rdev->wiphy.max_remain_on_channel_duration))
1594 goto nla_put_failure;
1596 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1597 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1598 goto nla_put_failure;
1600 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1601 goto nla_put_failure;
1602 state->split_start++;
1607 if (nl80211_send_wowlan(msg, rdev, state->split))
1608 goto nla_put_failure;
1609 state->split_start++;
1613 state->split_start++;
1616 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1617 rdev->wiphy.software_iftypes))
1618 goto nla_put_failure;
1620 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1622 goto nla_put_failure;
1624 state->split_start++;
1628 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1629 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1630 rdev->wiphy.ap_sme_capa))
1631 goto nla_put_failure;
1633 features = rdev->wiphy.features;
1635 * We can only add the per-channel limit information if the
1636 * dump is split, otherwise it makes it too big. Therefore
1637 * only advertise it in that case.
1640 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1641 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1642 goto nla_put_failure;
1644 if (rdev->wiphy.ht_capa_mod_mask &&
1645 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1646 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1647 rdev->wiphy.ht_capa_mod_mask))
1648 goto nla_put_failure;
1650 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1651 rdev->wiphy.max_acl_mac_addrs &&
1652 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1653 rdev->wiphy.max_acl_mac_addrs))
1654 goto nla_put_failure;
1657 * Any information below this point is only available to
1658 * applications that can deal with it being split. This
1659 * helps ensure that newly added capabilities don't break
1660 * older tools by overrunning their buffers.
1662 * We still increment split_start so that in the split
1663 * case we'll continue with more data in the next round,
1664 * but break unconditionally so unsplit data stops here.
1666 state->split_start++;
1669 if (rdev->wiphy.extended_capabilities &&
1670 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1671 rdev->wiphy.extended_capabilities_len,
1672 rdev->wiphy.extended_capabilities) ||
1673 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1674 rdev->wiphy.extended_capabilities_len,
1675 rdev->wiphy.extended_capabilities_mask)))
1676 goto nla_put_failure;
1678 if (rdev->wiphy.vht_capa_mod_mask &&
1679 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1680 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1681 rdev->wiphy.vht_capa_mod_mask))
1682 goto nla_put_failure;
1684 state->split_start++;
1687 if (nl80211_send_coalesce(msg, rdev))
1688 goto nla_put_failure;
1690 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1691 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1692 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1693 goto nla_put_failure;
1695 if (rdev->wiphy.max_ap_assoc_sta &&
1696 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1697 rdev->wiphy.max_ap_assoc_sta))
1698 goto nla_put_failure;
1700 state->split_start++;
1703 if (rdev->wiphy.n_vendor_commands) {
1704 const struct nl80211_vendor_cmd_info *info;
1705 struct nlattr *nested;
1707 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1709 goto nla_put_failure;
1711 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1712 info = &rdev->wiphy.vendor_commands[i].info;
1713 if (nla_put(msg, i + 1, sizeof(*info), info))
1714 goto nla_put_failure;
1716 nla_nest_end(msg, nested);
1719 if (rdev->wiphy.n_vendor_events) {
1720 const struct nl80211_vendor_cmd_info *info;
1721 struct nlattr *nested;
1723 nested = nla_nest_start(msg,
1724 NL80211_ATTR_VENDOR_EVENTS);
1726 goto nla_put_failure;
1728 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1729 info = &rdev->wiphy.vendor_events[i];
1730 if (nla_put(msg, i + 1, sizeof(*info), info))
1731 goto nla_put_failure;
1733 nla_nest_end(msg, nested);
1735 state->split_start++;
1738 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1739 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1740 rdev->wiphy.max_num_csa_counters))
1741 goto nla_put_failure;
1743 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1744 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1745 goto nla_put_failure;
1747 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1748 sizeof(rdev->wiphy.ext_features),
1749 rdev->wiphy.ext_features))
1750 goto nla_put_failure;
1752 if (rdev->wiphy.bss_select_support) {
1753 struct nlattr *nested;
1754 u32 bss_select_support = rdev->wiphy.bss_select_support;
1756 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1758 goto nla_put_failure;
1761 while (bss_select_support) {
1762 if ((bss_select_support & 1) &&
1763 nla_put_flag(msg, i))
1764 goto nla_put_failure;
1766 bss_select_support >>= 1;
1768 nla_nest_end(msg, nested);
1771 state->split_start++;
1774 if (rdev->wiphy.num_iftype_ext_capab &&
1775 rdev->wiphy.iftype_ext_capab) {
1776 struct nlattr *nested_ext_capab, *nested;
1778 nested = nla_nest_start(msg,
1779 NL80211_ATTR_IFTYPE_EXT_CAPA);
1781 goto nla_put_failure;
1783 for (i = state->capa_start;
1784 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1785 const struct wiphy_iftype_ext_capab *capab;
1787 capab = &rdev->wiphy.iftype_ext_capab[i];
1789 nested_ext_capab = nla_nest_start(msg, i);
1790 if (!nested_ext_capab ||
1791 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1793 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1794 capab->extended_capabilities_len,
1795 capab->extended_capabilities) ||
1796 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1797 capab->extended_capabilities_len,
1798 capab->extended_capabilities_mask))
1799 goto nla_put_failure;
1801 nla_nest_end(msg, nested_ext_capab);
1805 nla_nest_end(msg, nested);
1806 if (i < rdev->wiphy.num_iftype_ext_capab) {
1807 state->capa_start = i + 1;
1813 state->split_start = 0;
1817 genlmsg_end(msg, hdr);
1821 genlmsg_cancel(msg, hdr);
1825 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1826 struct netlink_callback *cb,
1827 struct nl80211_dump_wiphy_state *state)
1829 struct nlattr **tb = nl80211_fam.attrbuf;
1830 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1831 tb, nl80211_fam.maxattr, nl80211_policy);
1832 /* ignore parse errors for backward compatibility */
1836 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1837 if (tb[NL80211_ATTR_WIPHY])
1838 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1839 if (tb[NL80211_ATTR_WDEV])
1840 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1841 if (tb[NL80211_ATTR_IFINDEX]) {
1842 struct net_device *netdev;
1843 struct cfg80211_registered_device *rdev;
1844 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1846 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1849 if (netdev->ieee80211_ptr) {
1850 rdev = wiphy_to_rdev(
1851 netdev->ieee80211_ptr->wiphy);
1852 state->filter_wiphy = rdev->wiphy_idx;
1859 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1862 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1863 struct cfg80211_registered_device *rdev;
1867 state = kzalloc(sizeof(*state), GFP_KERNEL);
1872 state->filter_wiphy = -1;
1873 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1879 cb->args[0] = (long)state;
1882 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1883 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1885 if (++idx <= state->start)
1887 if (state->filter_wiphy != -1 &&
1888 state->filter_wiphy != rdev->wiphy_idx)
1890 /* attempt to fit multiple wiphy data chunks into the skb */
1892 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1894 NETLINK_CB(cb->skb).portid,
1896 NLM_F_MULTI, state);
1899 * If sending the wiphy data didn't fit (ENOBUFS
1900 * or EMSGSIZE returned), this SKB is still
1901 * empty (so it's not too big because another
1902 * wiphy dataset is already in the skb) and
1903 * we've not tried to adjust the dump allocation
1904 * yet ... then adjust the alloc size to be
1905 * bigger, and return 1 but with the empty skb.
1906 * This results in an empty message being RX'ed
1907 * in userspace, but that is ignored.
1909 * We can then retry with the larger buffer.
1911 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1912 !skb->len && !state->split &&
1913 cb->min_dump_alloc < 4096) {
1914 cb->min_dump_alloc = 4096;
1915 state->split_start = 0;
1922 } while (state->split_start > 0);
1932 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1934 kfree((void *)cb->args[0]);
1938 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1940 struct sk_buff *msg;
1941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1942 struct nl80211_dump_wiphy_state state = {};
1944 msg = nlmsg_new(4096, GFP_KERNEL);
1948 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1949 info->snd_portid, info->snd_seq, 0,
1955 return genlmsg_reply(msg, info);
1958 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1959 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1960 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1961 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1962 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1963 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1966 static int parse_txq_params(struct nlattr *tb[],
1967 struct ieee80211_txq_params *txq_params)
1969 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1970 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1971 !tb[NL80211_TXQ_ATTR_AIFS])
1974 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1975 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1976 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1977 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1978 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1980 if (txq_params->ac >= NL80211_NUM_ACS)
1986 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1989 * You can only set the channel explicitly for WDS interfaces,
1990 * all others have their channel managed via their respective
1991 * "establish a connection" command (connect, join, ...)
1993 * For AP/GO and mesh mode, the channel can be set with the
1994 * channel userspace API, but is only stored and passed to the
1995 * low-level driver when the AP starts or the mesh is joined.
1996 * This is for backward compatibility, userspace can also give
1997 * the channel in the start-ap or join-mesh commands instead.
1999 * Monitors are special as they are normally slaved to
2000 * whatever else is going on, so they have their own special
2001 * operation to set the monitor channel if possible.
2004 wdev->iftype == NL80211_IFTYPE_AP ||
2005 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
2006 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2007 wdev->iftype == NL80211_IFTYPE_P2P_GO;
2010 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2011 struct genl_info *info,
2012 struct cfg80211_chan_def *chandef)
2016 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2019 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2021 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
2022 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2023 chandef->center_freq1 = control_freq;
2024 chandef->center_freq2 = 0;
2026 /* Primary channel not allowed */
2027 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2030 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2031 enum nl80211_channel_type chantype;
2033 chantype = nla_get_u32(
2034 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2037 case NL80211_CHAN_NO_HT:
2038 case NL80211_CHAN_HT20:
2039 case NL80211_CHAN_HT40PLUS:
2040 case NL80211_CHAN_HT40MINUS:
2041 cfg80211_chandef_create(chandef, chandef->chan,
2047 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2049 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2050 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2051 chandef->center_freq1 =
2053 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2054 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2055 chandef->center_freq2 =
2057 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2060 if (!cfg80211_chandef_valid(chandef))
2063 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2064 IEEE80211_CHAN_DISABLED))
2067 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2068 chandef->width == NL80211_CHAN_WIDTH_10) &&
2069 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2075 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2076 struct net_device *dev,
2077 struct genl_info *info)
2079 struct cfg80211_chan_def chandef;
2081 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2082 struct wireless_dev *wdev = NULL;
2085 wdev = dev->ieee80211_ptr;
2086 if (!nl80211_can_set_dev_channel(wdev))
2089 iftype = wdev->iftype;
2091 result = nl80211_parse_chandef(rdev, info, &chandef);
2096 case NL80211_IFTYPE_AP:
2097 case NL80211_IFTYPE_P2P_GO:
2098 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2103 if (wdev->beacon_interval) {
2104 if (!dev || !rdev->ops->set_ap_chanwidth ||
2105 !(rdev->wiphy.features &
2106 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2111 /* Only allow dynamic channel width changes */
2112 if (chandef.chan != wdev->preset_chandef.chan) {
2116 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2120 wdev->preset_chandef = chandef;
2123 case NL80211_IFTYPE_MESH_POINT:
2124 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2126 case NL80211_IFTYPE_MONITOR:
2127 result = cfg80211_set_monitor_channel(rdev, &chandef);
2136 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2139 struct net_device *netdev = info->user_ptr[1];
2141 return __nl80211_set_channel(rdev, netdev, info);
2144 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2147 struct net_device *dev = info->user_ptr[1];
2148 struct wireless_dev *wdev = dev->ieee80211_ptr;
2151 if (!info->attrs[NL80211_ATTR_MAC])
2154 if (netif_running(dev))
2157 if (!rdev->ops->set_wds_peer)
2160 if (wdev->iftype != NL80211_IFTYPE_WDS)
2163 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2164 return rdev_set_wds_peer(rdev, dev, bssid);
2167 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2169 struct cfg80211_registered_device *rdev;
2170 struct net_device *netdev = NULL;
2171 struct wireless_dev *wdev;
2172 int result = 0, rem_txq_params = 0;
2173 struct nlattr *nl_txq_params;
2175 u8 retry_short = 0, retry_long = 0;
2176 u32 frag_threshold = 0, rts_threshold = 0;
2177 u8 coverage_class = 0;
2182 * Try to find the wiphy and netdev. Normally this
2183 * function shouldn't need the netdev, but this is
2184 * done for backward compatibility -- previously
2185 * setting the channel was done per wiphy, but now
2186 * it is per netdev. Previous userland like hostapd
2187 * also passed a netdev to set_wiphy, so that it is
2188 * possible to let that go to the right netdev!
2191 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2192 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2194 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2195 if (netdev && netdev->ieee80211_ptr)
2196 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2202 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2205 return PTR_ERR(rdev);
2210 wdev = netdev->ieee80211_ptr;
2213 * end workaround code, by now the rdev is available
2214 * and locked, and wdev may or may not be NULL.
2217 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2218 result = cfg80211_dev_rename(
2219 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2224 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2225 struct ieee80211_txq_params txq_params;
2226 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2228 if (!rdev->ops->set_txq_params)
2234 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2235 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2238 if (!netif_running(netdev))
2241 nla_for_each_nested(nl_txq_params,
2242 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2244 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2245 nla_data(nl_txq_params),
2246 nla_len(nl_txq_params),
2250 result = parse_txq_params(tb, &txq_params);
2254 result = rdev_set_txq_params(rdev, netdev,
2261 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2262 result = __nl80211_set_channel(
2264 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2270 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2271 struct wireless_dev *txp_wdev = wdev;
2272 enum nl80211_tx_power_setting type;
2275 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2278 if (!rdev->ops->set_tx_power)
2281 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2282 type = nla_get_u32(info->attrs[idx]);
2284 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2285 (type != NL80211_TX_POWER_AUTOMATIC))
2288 if (type != NL80211_TX_POWER_AUTOMATIC) {
2289 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2290 mbm = nla_get_u32(info->attrs[idx]);
2293 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2298 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2299 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2302 if ((!rdev->wiphy.available_antennas_tx &&
2303 !rdev->wiphy.available_antennas_rx) ||
2304 !rdev->ops->set_antenna)
2307 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2308 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2310 /* reject antenna configurations which don't match the
2311 * available antenna masks, except for the "all" mask */
2312 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2313 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2316 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2317 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2319 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2326 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2327 retry_short = nla_get_u8(
2328 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2329 if (retry_short == 0)
2332 changed |= WIPHY_PARAM_RETRY_SHORT;
2335 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2336 retry_long = nla_get_u8(
2337 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2338 if (retry_long == 0)
2341 changed |= WIPHY_PARAM_RETRY_LONG;
2344 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2345 frag_threshold = nla_get_u32(
2346 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2347 if (frag_threshold < 256)
2350 if (frag_threshold != (u32) -1) {
2352 * Fragments (apart from the last one) are required to
2353 * have even length. Make the fragmentation code
2354 * simpler by stripping LSB should someone try to use
2355 * odd threshold value.
2357 frag_threshold &= ~0x1;
2359 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2362 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2363 rts_threshold = nla_get_u32(
2364 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2365 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2368 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2369 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2372 coverage_class = nla_get_u8(
2373 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2374 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2377 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2378 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2381 changed |= WIPHY_PARAM_DYN_ACK;
2385 u8 old_retry_short, old_retry_long;
2386 u32 old_frag_threshold, old_rts_threshold;
2387 u8 old_coverage_class;
2389 if (!rdev->ops->set_wiphy_params)
2392 old_retry_short = rdev->wiphy.retry_short;
2393 old_retry_long = rdev->wiphy.retry_long;
2394 old_frag_threshold = rdev->wiphy.frag_threshold;
2395 old_rts_threshold = rdev->wiphy.rts_threshold;
2396 old_coverage_class = rdev->wiphy.coverage_class;
2398 if (changed & WIPHY_PARAM_RETRY_SHORT)
2399 rdev->wiphy.retry_short = retry_short;
2400 if (changed & WIPHY_PARAM_RETRY_LONG)
2401 rdev->wiphy.retry_long = retry_long;
2402 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2403 rdev->wiphy.frag_threshold = frag_threshold;
2404 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2405 rdev->wiphy.rts_threshold = rts_threshold;
2406 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2407 rdev->wiphy.coverage_class = coverage_class;
2409 result = rdev_set_wiphy_params(rdev, changed);
2411 rdev->wiphy.retry_short = old_retry_short;
2412 rdev->wiphy.retry_long = old_retry_long;
2413 rdev->wiphy.frag_threshold = old_frag_threshold;
2414 rdev->wiphy.rts_threshold = old_rts_threshold;
2415 rdev->wiphy.coverage_class = old_coverage_class;
2422 static inline u64 wdev_id(struct wireless_dev *wdev)
2424 return (u64)wdev->identifier |
2425 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2428 static int nl80211_send_chandef(struct sk_buff *msg,
2429 const struct cfg80211_chan_def *chandef)
2431 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2434 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2435 chandef->chan->center_freq))
2437 switch (chandef->width) {
2438 case NL80211_CHAN_WIDTH_20_NOHT:
2439 case NL80211_CHAN_WIDTH_20:
2440 case NL80211_CHAN_WIDTH_40:
2441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2442 cfg80211_get_chandef_type(chandef)))
2448 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2450 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2452 if (chandef->center_freq2 &&
2453 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2458 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2459 struct cfg80211_registered_device *rdev,
2460 struct wireless_dev *wdev, bool removal)
2462 struct net_device *dev = wdev->netdev;
2463 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2467 cmd = NL80211_CMD_DEL_INTERFACE;
2469 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2474 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2475 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2476 goto nla_put_failure;
2478 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2479 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2480 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2481 NL80211_ATTR_PAD) ||
2482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2483 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2484 rdev->devlist_generation ^
2485 (cfg80211_rdev_list_generation << 2)))
2486 goto nla_put_failure;
2488 if (rdev->ops->get_channel) {
2490 struct cfg80211_chan_def chandef;
2492 ret = rdev_get_channel(rdev, wdev, &chandef);
2494 if (nl80211_send_chandef(msg, &chandef))
2495 goto nla_put_failure;
2499 if (rdev->ops->get_tx_power) {
2502 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2504 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2506 goto nla_put_failure;
2509 if (wdev->ssid_len) {
2510 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2511 goto nla_put_failure;
2514 genlmsg_end(msg, hdr);
2518 genlmsg_cancel(msg, hdr);
2522 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2526 int wp_start = cb->args[0];
2527 int if_start = cb->args[1];
2528 struct cfg80211_registered_device *rdev;
2529 struct wireless_dev *wdev;
2532 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2533 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2535 if (wp_idx < wp_start) {
2541 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
2542 if (if_idx < if_start) {
2546 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2547 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2548 rdev, wdev, false) < 0) {
2559 cb->args[0] = wp_idx;
2560 cb->args[1] = if_idx;
2565 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2567 struct sk_buff *msg;
2568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2569 struct wireless_dev *wdev = info->user_ptr[1];
2571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2575 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2576 rdev, wdev, false) < 0) {
2581 return genlmsg_reply(msg, info);
2584 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2585 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2586 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2587 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2588 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2589 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2590 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2593 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2595 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2603 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2604 nla, mntr_flags_policy))
2607 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2609 *mntrflags |= (1<<flag);
2614 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2615 struct net_device *netdev, u8 use_4addr,
2616 enum nl80211_iftype iftype)
2619 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2625 case NL80211_IFTYPE_AP_VLAN:
2626 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2629 case NL80211_IFTYPE_STATION:
2630 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2640 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2643 struct vif_params params;
2645 enum nl80211_iftype otype, ntype;
2646 struct net_device *dev = info->user_ptr[1];
2647 u32 _flags, *flags = NULL;
2648 bool change = false;
2650 memset(¶ms, 0, sizeof(params));
2652 otype = ntype = dev->ieee80211_ptr->iftype;
2654 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2655 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2658 if (ntype > NL80211_IFTYPE_MAX)
2662 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2663 struct wireless_dev *wdev = dev->ieee80211_ptr;
2665 if (ntype != NL80211_IFTYPE_MESH_POINT)
2667 if (netif_running(dev))
2671 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2672 IEEE80211_MAX_MESH_ID_LEN);
2673 wdev->mesh_id_up_len =
2674 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2675 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2676 wdev->mesh_id_up_len);
2680 if (info->attrs[NL80211_ATTR_4ADDR]) {
2681 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2683 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2687 params.use_4addr = -1;
2690 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2691 if (ntype != NL80211_IFTYPE_MONITOR)
2693 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2702 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2703 const u8 *mumimo_groups;
2704 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2706 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2710 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2712 /* bits 0 and 63 are reserved and must be zero */
2713 if ((mumimo_groups[0] & BIT(7)) ||
2714 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2717 memcpy(params.vht_mumimo_groups, mumimo_groups,
2718 VHT_MUMIMO_GROUPS_DATA_LEN);
2722 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2723 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2725 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2728 nla_memcpy(params.macaddr,
2729 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2734 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2735 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2739 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2743 if (!err && params.use_4addr != -1)
2744 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2749 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2752 struct vif_params params;
2753 struct wireless_dev *wdev;
2754 struct sk_buff *msg, *event;
2756 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2759 /* to avoid failing a new interface creation due to pending removal */
2760 cfg80211_destroy_ifaces(rdev);
2762 memset(¶ms, 0, sizeof(params));
2764 if (!info->attrs[NL80211_ATTR_IFNAME])
2767 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2768 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2769 if (type > NL80211_IFTYPE_MAX)
2773 if (!rdev->ops->add_virtual_intf ||
2774 !(rdev->wiphy.interface_modes & (1 << type)))
2777 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2778 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2779 info->attrs[NL80211_ATTR_MAC]) {
2780 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2782 if (!is_valid_ether_addr(params.macaddr))
2783 return -EADDRNOTAVAIL;
2786 if (info->attrs[NL80211_ATTR_4ADDR]) {
2787 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2788 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2793 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2794 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2797 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2798 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2805 wdev = rdev_add_virtual_intf(rdev,
2806 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2807 NET_NAME_USER, type, err ? NULL : &flags,
2809 if (WARN_ON(!wdev)) {
2812 } else if (IS_ERR(wdev)) {
2814 return PTR_ERR(wdev);
2817 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2818 wdev->owner_nlportid = info->snd_portid;
2821 case NL80211_IFTYPE_MESH_POINT:
2822 if (!info->attrs[NL80211_ATTR_MESH_ID])
2825 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2826 IEEE80211_MAX_MESH_ID_LEN);
2827 wdev->mesh_id_up_len =
2828 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2829 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2830 wdev->mesh_id_up_len);
2833 case NL80211_IFTYPE_P2P_DEVICE:
2835 * P2P Device doesn't have a netdev, so doesn't go
2836 * through the netdev notifier and must be added here
2838 mutex_init(&wdev->mtx);
2839 INIT_LIST_HEAD(&wdev->event_list);
2840 spin_lock_init(&wdev->event_lock);
2841 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2842 spin_lock_init(&wdev->mgmt_registrations_lock);
2844 wdev->identifier = ++rdev->wdev_id;
2845 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
2846 rdev->devlist_generation++;
2852 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2853 rdev, wdev, false) < 0) {
2858 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2860 if (nl80211_send_iface(event, 0, 0, 0,
2861 rdev, wdev, false) < 0) {
2866 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2867 event, 0, NL80211_MCGRP_CONFIG,
2872 return genlmsg_reply(msg, info);
2875 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2878 struct wireless_dev *wdev = info->user_ptr[1];
2879 struct sk_buff *msg;
2882 if (!rdev->ops->del_virtual_intf)
2885 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2886 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2892 * If we remove a wireless device without a netdev then clear
2893 * user_ptr[1] so that nl80211_post_doit won't dereference it
2894 * to check if it needs to do dev_put(). Otherwise it crashes
2895 * since the wdev has been freed, unlike with a netdev where
2896 * we need the dev_put() for the netdev to really be freed.
2899 info->user_ptr[1] = NULL;
2901 status = rdev_del_virtual_intf(rdev, wdev);
2902 if (status >= 0 && msg)
2903 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2904 msg, 0, NL80211_MCGRP_CONFIG,
2912 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2915 struct net_device *dev = info->user_ptr[1];
2918 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2921 if (!rdev->ops->set_noack_map)
2924 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2926 return rdev_set_noack_map(rdev, dev, noack_map);
2929 struct get_key_cookie {
2930 struct sk_buff *msg;
2935 static void get_key_callback(void *c, struct key_params *params)
2938 struct get_key_cookie *cookie = c;
2941 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2942 params->key_len, params->key)) ||
2944 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2945 params->seq_len, params->seq)) ||
2947 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2949 goto nla_put_failure;
2951 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2953 goto nla_put_failure;
2956 nla_put(cookie->msg, NL80211_KEY_DATA,
2957 params->key_len, params->key)) ||
2959 nla_put(cookie->msg, NL80211_KEY_SEQ,
2960 params->seq_len, params->seq)) ||
2962 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2964 goto nla_put_failure;
2966 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2967 goto nla_put_failure;
2969 nla_nest_end(cookie->msg, key);
2976 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2980 struct net_device *dev = info->user_ptr[1];
2982 const u8 *mac_addr = NULL;
2984 struct get_key_cookie cookie = {
2988 struct sk_buff *msg;
2990 if (info->attrs[NL80211_ATTR_KEY_IDX])
2991 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2996 if (info->attrs[NL80211_ATTR_MAC])
2997 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2999 pairwise = !!mac_addr;
3000 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3001 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
3003 if (kt >= NUM_NL80211_KEYTYPES)
3005 if (kt != NL80211_KEYTYPE_GROUP &&
3006 kt != NL80211_KEYTYPE_PAIRWISE)
3008 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3011 if (!rdev->ops->get_key)
3014 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3017 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3021 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3022 NL80211_CMD_NEW_KEY);
3024 goto nla_put_failure;
3027 cookie.idx = key_idx;
3029 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3030 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3031 goto nla_put_failure;
3033 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3034 goto nla_put_failure;
3036 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3043 goto nla_put_failure;
3045 genlmsg_end(msg, hdr);
3046 return genlmsg_reply(msg, info);
3055 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3058 struct key_parse key;
3060 struct net_device *dev = info->user_ptr[1];
3062 err = nl80211_parse_key(info, &key);
3069 /* only support setting default key */
3070 if (!key.def && !key.defmgmt)
3073 wdev_lock(dev->ieee80211_ptr);
3076 if (!rdev->ops->set_default_key) {
3081 err = nl80211_key_allowed(dev->ieee80211_ptr);
3085 err = rdev_set_default_key(rdev, dev, key.idx,
3086 key.def_uni, key.def_multi);
3091 #ifdef CONFIG_CFG80211_WEXT
3092 dev->ieee80211_ptr->wext.default_key = key.idx;
3095 if (key.def_uni || !key.def_multi) {
3100 if (!rdev->ops->set_default_mgmt_key) {
3105 err = nl80211_key_allowed(dev->ieee80211_ptr);
3109 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3113 #ifdef CONFIG_CFG80211_WEXT
3114 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3119 wdev_unlock(dev->ieee80211_ptr);
3124 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3126 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3128 struct net_device *dev = info->user_ptr[1];
3129 struct key_parse key;
3130 const u8 *mac_addr = NULL;
3132 err = nl80211_parse_key(info, &key);
3139 if (info->attrs[NL80211_ATTR_MAC])
3140 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3142 if (key.type == -1) {
3144 key.type = NL80211_KEYTYPE_PAIRWISE;
3146 key.type = NL80211_KEYTYPE_GROUP;
3150 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3151 key.type != NL80211_KEYTYPE_GROUP)
3154 if (!rdev->ops->add_key)
3157 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3158 key.type == NL80211_KEYTYPE_PAIRWISE,
3162 wdev_lock(dev->ieee80211_ptr);
3163 err = nl80211_key_allowed(dev->ieee80211_ptr);
3165 err = rdev_add_key(rdev, dev, key.idx,
3166 key.type == NL80211_KEYTYPE_PAIRWISE,
3168 wdev_unlock(dev->ieee80211_ptr);
3173 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3177 struct net_device *dev = info->user_ptr[1];
3178 u8 *mac_addr = NULL;
3179 struct key_parse key;
3181 err = nl80211_parse_key(info, &key);
3185 if (info->attrs[NL80211_ATTR_MAC])
3186 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3188 if (key.type == -1) {
3190 key.type = NL80211_KEYTYPE_PAIRWISE;
3192 key.type = NL80211_KEYTYPE_GROUP;
3196 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3197 key.type != NL80211_KEYTYPE_GROUP)
3200 if (!rdev->ops->del_key)
3203 wdev_lock(dev->ieee80211_ptr);
3204 err = nl80211_key_allowed(dev->ieee80211_ptr);
3206 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3207 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3211 err = rdev_del_key(rdev, dev, key.idx,
3212 key.type == NL80211_KEYTYPE_PAIRWISE,
3215 #ifdef CONFIG_CFG80211_WEXT
3217 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3218 dev->ieee80211_ptr->wext.default_key = -1;
3219 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3220 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3223 wdev_unlock(dev->ieee80211_ptr);
3228 /* This function returns an error or the number of nested attributes */
3229 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3231 struct nlattr *attr;
3232 int n_entries = 0, tmp;
3234 nla_for_each_nested(attr, nl_attr, tmp) {
3235 if (nla_len(attr) != ETH_ALEN)
3245 * This function parses ACL information and allocates memory for ACL data.
3246 * On successful return, the calling function is responsible to free the
3247 * ACL buffer returned by this function.
3249 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3250 struct genl_info *info)
3252 enum nl80211_acl_policy acl_policy;
3253 struct nlattr *attr;
3254 struct cfg80211_acl_data *acl;
3255 int i = 0, n_entries, tmp;
3257 if (!wiphy->max_acl_mac_addrs)
3258 return ERR_PTR(-EOPNOTSUPP);
3260 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3261 return ERR_PTR(-EINVAL);
3263 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3264 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3265 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3266 return ERR_PTR(-EINVAL);
3268 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3269 return ERR_PTR(-EINVAL);
3271 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3273 return ERR_PTR(n_entries);
3275 if (n_entries > wiphy->max_acl_mac_addrs)
3276 return ERR_PTR(-ENOTSUPP);
3278 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3281 return ERR_PTR(-ENOMEM);
3283 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3284 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3288 acl->n_acl_entries = n_entries;
3289 acl->acl_policy = acl_policy;
3294 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3296 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3297 struct net_device *dev = info->user_ptr[1];
3298 struct cfg80211_acl_data *acl;
3301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3302 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3305 if (!dev->ieee80211_ptr->beacon_interval)
3308 acl = parse_acl_data(&rdev->wiphy, info);
3310 return PTR_ERR(acl);
3312 err = rdev_set_mac_acl(rdev, dev, acl);
3319 static int nl80211_parse_beacon(struct nlattr *attrs[],
3320 struct cfg80211_beacon_data *bcn)
3322 bool haveinfo = false;
3324 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3325 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3326 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3327 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3330 memset(bcn, 0, sizeof(*bcn));
3332 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3333 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3334 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3340 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3341 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3342 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3349 if (attrs[NL80211_ATTR_IE]) {
3350 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3351 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3354 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3355 bcn->proberesp_ies =
3356 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3357 bcn->proberesp_ies_len =
3358 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3361 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3362 bcn->assocresp_ies =
3363 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3364 bcn->assocresp_ies_len =
3365 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3368 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3369 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3370 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3376 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3377 struct cfg80211_ap_settings *params)
3379 struct wireless_dev *wdev;
3382 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
3383 if (wdev->iftype != NL80211_IFTYPE_AP &&
3384 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3387 if (!wdev->preset_chandef.chan)
3390 params->chandef = wdev->preset_chandef;
3398 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3399 enum nl80211_auth_type auth_type,
3400 enum nl80211_commands cmd)
3402 if (auth_type > NL80211_AUTHTYPE_MAX)
3406 case NL80211_CMD_AUTHENTICATE:
3407 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3408 auth_type == NL80211_AUTHTYPE_SAE)
3411 case NL80211_CMD_CONNECT:
3412 case NL80211_CMD_START_AP:
3413 /* SAE not supported yet */
3414 if (auth_type == NL80211_AUTHTYPE_SAE)
3422 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3425 struct net_device *dev = info->user_ptr[1];
3426 struct wireless_dev *wdev = dev->ieee80211_ptr;
3427 struct cfg80211_ap_settings params;
3430 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3431 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3434 if (!rdev->ops->start_ap)
3437 if (wdev->beacon_interval)
3440 memset(¶ms, 0, sizeof(params));
3442 /* these are required for START_AP */
3443 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3444 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3445 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3448 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3452 params.beacon_interval =
3453 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3454 params.dtim_period =
3455 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3457 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3462 * In theory, some of these attributes should be required here
3463 * but since they were not used when the command was originally
3464 * added, keep them optional for old user space programs to let
3465 * them continue to work with drivers that do not need the
3466 * additional information -- drivers must check!
3468 if (info->attrs[NL80211_ATTR_SSID]) {
3469 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3471 nla_len(info->attrs[NL80211_ATTR_SSID]);
3472 if (params.ssid_len == 0 ||
3473 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3477 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3478 params.hidden_ssid = nla_get_u32(
3479 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3480 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3481 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3482 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3486 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3488 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3489 params.auth_type = nla_get_u32(
3490 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3491 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3492 NL80211_CMD_START_AP))
3495 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3497 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3498 NL80211_MAX_NR_CIPHER_SUITES);
3502 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3503 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3505 params.inactivity_timeout = nla_get_u16(
3506 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3509 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3510 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3512 params.p2p_ctwindow =
3513 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3514 if (params.p2p_ctwindow > 127)
3516 if (params.p2p_ctwindow != 0 &&
3517 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3521 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3526 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3529 params.p2p_opp_ps = tmp;
3530 if (params.p2p_opp_ps != 0 &&
3531 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3535 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3536 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3539 } else if (wdev->preset_chandef.chan) {
3540 params.chandef = wdev->preset_chandef;
3541 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3544 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3548 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3550 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3551 switch (params.smps_mode) {
3552 case NL80211_SMPS_OFF:
3554 case NL80211_SMPS_STATIC:
3555 if (!(rdev->wiphy.features &
3556 NL80211_FEATURE_STATIC_SMPS))
3559 case NL80211_SMPS_DYNAMIC:
3560 if (!(rdev->wiphy.features &
3561 NL80211_FEATURE_DYNAMIC_SMPS))
3568 params.smps_mode = NL80211_SMPS_OFF;
3571 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3572 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3575 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3576 params.acl = parse_acl_data(&rdev->wiphy, info);
3577 if (IS_ERR(params.acl))
3578 return PTR_ERR(params.acl);
3582 err = rdev_start_ap(rdev, dev, ¶ms);
3584 wdev->preset_chandef = params.chandef;
3585 wdev->beacon_interval = params.beacon_interval;
3586 wdev->chandef = params.chandef;
3587 wdev->ssid_len = params.ssid_len;
3588 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3597 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3600 struct net_device *dev = info->user_ptr[1];
3601 struct wireless_dev *wdev = dev->ieee80211_ptr;
3602 struct cfg80211_beacon_data params;
3605 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3606 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3609 if (!rdev->ops->change_beacon)
3612 if (!wdev->beacon_interval)
3615 err = nl80211_parse_beacon(info->attrs, ¶ms);
3620 err = rdev_change_beacon(rdev, dev, ¶ms);
3626 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3629 struct net_device *dev = info->user_ptr[1];
3631 return cfg80211_stop_ap(rdev, dev, false);
3634 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3635 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3636 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3637 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3638 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3639 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3640 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3643 static int parse_station_flags(struct genl_info *info,
3644 enum nl80211_iftype iftype,
3645 struct station_parameters *params)
3647 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3652 * Try parsing the new attribute first so userspace
3653 * can specify both for older kernels.
3655 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3657 struct nl80211_sta_flag_update *sta_flags;
3659 sta_flags = nla_data(nla);
3660 params->sta_flags_mask = sta_flags->mask;
3661 params->sta_flags_set = sta_flags->set;
3662 params->sta_flags_set &= params->sta_flags_mask;
3663 if ((params->sta_flags_mask |
3664 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3669 /* if present, parse the old attribute */
3671 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3675 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3676 nla, sta_flags_policy))
3680 * Only allow certain flags for interface types so that
3681 * other attributes are silently ignored. Remember that
3682 * this is backward compatibility code with old userspace
3683 * and shouldn't be hit in other cases anyway.
3686 case NL80211_IFTYPE_AP:
3687 case NL80211_IFTYPE_AP_VLAN:
3688 case NL80211_IFTYPE_P2P_GO:
3689 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3690 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3691 BIT(NL80211_STA_FLAG_WME) |
3692 BIT(NL80211_STA_FLAG_MFP);
3694 case NL80211_IFTYPE_P2P_CLIENT:
3695 case NL80211_IFTYPE_STATION:
3696 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3697 BIT(NL80211_STA_FLAG_TDLS_PEER);
3699 case NL80211_IFTYPE_MESH_POINT:
3700 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3701 BIT(NL80211_STA_FLAG_MFP) |
3702 BIT(NL80211_STA_FLAG_AUTHORIZED);
3707 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3709 params->sta_flags_set |= (1<<flag);
3711 /* no longer support new API additions in old API */
3712 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3720 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3723 struct nlattr *rate;
3726 enum nl80211_attrs rate_flg;
3728 rate = nla_nest_start(msg, attr);
3732 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3733 bitrate = cfg80211_calculate_bitrate(info);
3734 /* report 16-bit bitrate only if we can */
3735 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3737 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3739 if (bitrate_compat > 0 &&
3740 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3744 case RATE_INFO_BW_5:
3745 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3747 case RATE_INFO_BW_10:
3748 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3753 case RATE_INFO_BW_20:
3756 case RATE_INFO_BW_40:
3757 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3759 case RATE_INFO_BW_80:
3760 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3762 case RATE_INFO_BW_160:
3763 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3767 if (rate_flg && nla_put_flag(msg, rate_flg))
3770 if (info->flags & RATE_INFO_FLAGS_MCS) {
3771 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3773 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3774 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3776 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3777 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3779 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3781 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3782 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3786 nla_nest_end(msg, rate);
3790 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3799 attr = nla_nest_start(msg, id);
3803 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3804 if (!(mask & BIT(i)))
3807 if (nla_put_u8(msg, i, signal[i]))
3811 nla_nest_end(msg, attr);
3816 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3818 struct cfg80211_registered_device *rdev,
3819 struct net_device *dev,
3820 const u8 *mac_addr, struct station_info *sinfo)
3823 struct nlattr *sinfoattr, *bss_param;
3825 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3829 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3830 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3831 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3832 goto nla_put_failure;
3834 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3836 goto nla_put_failure;
3838 #define PUT_SINFO(attr, memb, type) do { \
3839 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
3840 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3841 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3843 goto nla_put_failure; \
3845 #define PUT_SINFO_U64(attr, memb) do { \
3846 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3847 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
3848 sinfo->memb, NL80211_STA_INFO_PAD)) \
3849 goto nla_put_failure; \
3852 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3853 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3855 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3856 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
3857 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3858 (u32)sinfo->rx_bytes))
3859 goto nla_put_failure;
3861 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3862 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
3863 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3864 (u32)sinfo->tx_bytes))
3865 goto nla_put_failure;
3867 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
3868 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
3869 PUT_SINFO(LLID, llid, u16);
3870 PUT_SINFO(PLID, plid, u16);
3871 PUT_SINFO(PLINK_STATE, plink_state, u8);
3872 PUT_SINFO_U64(RX_DURATION, rx_duration);
3874 switch (rdev->wiphy.signal_type) {
3875 case CFG80211_SIGNAL_TYPE_MBM:
3876 PUT_SINFO(SIGNAL, signal, u8);
3877 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
3882 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
3883 if (!nl80211_put_signal(msg, sinfo->chains,
3884 sinfo->chain_signal,
3885 NL80211_STA_INFO_CHAIN_SIGNAL))
3886 goto nla_put_failure;
3888 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
3889 if (!nl80211_put_signal(msg, sinfo->chains,
3890 sinfo->chain_signal_avg,
3891 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3892 goto nla_put_failure;
3894 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
3895 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3896 NL80211_STA_INFO_TX_BITRATE))
3897 goto nla_put_failure;
3899 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
3900 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3901 NL80211_STA_INFO_RX_BITRATE))
3902 goto nla_put_failure;
3905 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3906 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3907 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3908 PUT_SINFO(TX_FAILED, tx_failed, u32);
3909 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3910 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3911 PUT_SINFO(LOCAL_PM, local_pm, u32);
3912 PUT_SINFO(PEER_PM, peer_pm, u32);
3913 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3915 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
3916 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3918 goto nla_put_failure;
3920 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3921 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3922 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3923 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3924 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3925 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3926 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3927 sinfo->bss_param.dtim_period) ||
3928 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3929 sinfo->bss_param.beacon_interval))
3930 goto nla_put_failure;
3932 nla_nest_end(msg, bss_param);
3934 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
3935 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3936 sizeof(struct nl80211_sta_flag_update),
3938 goto nla_put_failure;
3940 PUT_SINFO_U64(T_OFFSET, t_offset);
3941 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
3942 PUT_SINFO_U64(BEACON_RX, rx_beacon);
3943 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
3946 #undef PUT_SINFO_U64
3948 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3949 struct nlattr *tidsattr;
3952 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3954 goto nla_put_failure;
3956 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3957 struct cfg80211_tid_stats *tidstats;
3958 struct nlattr *tidattr;
3960 tidstats = &sinfo->pertid[tid];
3962 if (!tidstats->filled)
3965 tidattr = nla_nest_start(msg, tid + 1);
3967 goto nla_put_failure;
3969 #define PUT_TIDVAL_U64(attr, memb) do { \
3970 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3971 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
3972 tidstats->memb, NL80211_TID_STATS_PAD)) \
3973 goto nla_put_failure; \
3976 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
3977 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
3978 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
3979 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
3981 #undef PUT_TIDVAL_U64
3982 nla_nest_end(msg, tidattr);
3985 nla_nest_end(msg, tidsattr);
3988 nla_nest_end(msg, sinfoattr);
3990 if (sinfo->assoc_req_ies_len &&
3991 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3992 sinfo->assoc_req_ies))
3993 goto nla_put_failure;
3995 genlmsg_end(msg, hdr);
3999 genlmsg_cancel(msg, hdr);
4003 static int nl80211_dump_station(struct sk_buff *skb,
4004 struct netlink_callback *cb)
4006 struct station_info sinfo;
4007 struct cfg80211_registered_device *rdev;
4008 struct wireless_dev *wdev;
4009 u8 mac_addr[ETH_ALEN];
4010 int sta_idx = cb->args[2];
4013 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4017 if (!wdev->netdev) {
4022 if (!rdev->ops->dump_station) {
4028 memset(&sinfo, 0, sizeof(sinfo));
4029 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
4036 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
4037 NETLINK_CB(cb->skb).portid,
4038 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4039 rdev, wdev->netdev, mac_addr,
4047 cb->args[2] = sta_idx;
4050 nl80211_finish_wdev_dump(rdev);
4055 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4058 struct net_device *dev = info->user_ptr[1];
4059 struct station_info sinfo;
4060 struct sk_buff *msg;
4061 u8 *mac_addr = NULL;
4064 memset(&sinfo, 0, sizeof(sinfo));
4066 if (!info->attrs[NL80211_ATTR_MAC])
4069 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4071 if (!rdev->ops->get_station)
4074 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
4078 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4082 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4083 info->snd_portid, info->snd_seq, 0,
4084 rdev, dev, mac_addr, &sinfo) < 0) {
4089 return genlmsg_reply(msg, info);
4092 int cfg80211_check_station_change(struct wiphy *wiphy,
4093 struct station_parameters *params,
4094 enum cfg80211_station_type statype)
4096 if (params->listen_interval != -1 &&
4097 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4100 if (params->support_p2p_ps != -1 &&
4101 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4105 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4106 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4109 /* When you run into this, adjust the code below for the new flag */
4110 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4113 case CFG80211_STA_MESH_PEER_KERNEL:
4114 case CFG80211_STA_MESH_PEER_USER:
4116 * No ignoring the TDLS flag here -- the userspace mesh
4117 * code doesn't have the bug of including TDLS in the
4120 if (params->sta_flags_mask &
4121 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4122 BIT(NL80211_STA_FLAG_MFP) |
4123 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4126 case CFG80211_STA_TDLS_PEER_SETUP:
4127 case CFG80211_STA_TDLS_PEER_ACTIVE:
4128 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4130 /* ignore since it can't change */
4131 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4134 /* disallow mesh-specific things */
4135 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4137 if (params->local_pm)
4139 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4143 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4144 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4145 /* TDLS can't be set, ... */
4146 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4149 * ... but don't bother the driver with it. This works around
4150 * a hostapd/wpa_supplicant issue -- it always includes the
4151 * TLDS_PEER flag in the mask even for AP mode.
4153 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4156 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4157 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4158 /* reject other things that can't change */
4159 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4161 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4163 if (params->supported_rates)
4165 if (params->ext_capab || params->ht_capa || params->vht_capa)
4169 if (statype != CFG80211_STA_AP_CLIENT &&
4170 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4176 case CFG80211_STA_AP_MLME_CLIENT:
4177 /* Use this only for authorizing/unauthorizing a station */
4178 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4181 case CFG80211_STA_AP_CLIENT:
4182 case CFG80211_STA_AP_CLIENT_UNASSOC:
4183 /* accept only the listed bits */
4184 if (params->sta_flags_mask &
4185 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4186 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4187 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4188 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4189 BIT(NL80211_STA_FLAG_WME) |
4190 BIT(NL80211_STA_FLAG_MFP)))
4193 /* but authenticated/associated only if driver handles it */
4194 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4195 params->sta_flags_mask &
4196 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4197 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4200 case CFG80211_STA_IBSS:
4201 case CFG80211_STA_AP_STA:
4202 /* reject any changes other than AUTHORIZED */
4203 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4206 case CFG80211_STA_TDLS_PEER_SETUP:
4207 /* reject any changes other than AUTHORIZED or WME */
4208 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4209 BIT(NL80211_STA_FLAG_WME)))
4211 /* force (at least) rates when authorizing */
4212 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4213 !params->supported_rates)
4216 case CFG80211_STA_TDLS_PEER_ACTIVE:
4217 /* reject any changes */
4219 case CFG80211_STA_MESH_PEER_KERNEL:
4220 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4223 case CFG80211_STA_MESH_PEER_USER:
4224 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4225 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4232 EXPORT_SYMBOL(cfg80211_check_station_change);
4235 * Get vlan interface making sure it is running and on the right wiphy.
4237 static struct net_device *get_vlan(struct genl_info *info,
4238 struct cfg80211_registered_device *rdev)
4240 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4241 struct net_device *v;
4247 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4249 return ERR_PTR(-ENODEV);
4251 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4256 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4257 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4258 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4263 if (!netif_running(v)) {
4271 return ERR_PTR(ret);
4274 static const struct nla_policy
4275 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4276 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4277 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4280 static int nl80211_parse_sta_wme(struct genl_info *info,
4281 struct station_parameters *params)
4283 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4287 /* parse WME attributes if present */
4288 if (!info->attrs[NL80211_ATTR_STA_WME])
4291 nla = info->attrs[NL80211_ATTR_STA_WME];
4292 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4293 nl80211_sta_wme_policy);
4297 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4298 params->uapsd_queues = nla_get_u8(
4299 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4300 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4303 if (tb[NL80211_STA_WME_MAX_SP])
4304 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4306 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4309 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4314 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4315 struct station_parameters *params)
4317 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4318 params->supported_channels =
4319 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4320 params->supported_channels_len =
4321 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4323 * Need to include at least one (first channel, number of
4324 * channels) tuple for each subband, and must have proper
4325 * tuples for the rest of the data as well.
4327 if (params->supported_channels_len < 2)
4329 if (params->supported_channels_len % 2)
4333 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4334 params->supported_oper_classes =
4335 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4336 params->supported_oper_classes_len =
4337 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4339 * The value of the Length field of the Supported Operating
4340 * Classes element is between 2 and 253.
4342 if (params->supported_oper_classes_len < 2 ||
4343 params->supported_oper_classes_len > 253)
4349 static int nl80211_set_station_tdls(struct genl_info *info,
4350 struct station_parameters *params)
4353 /* Dummy STA entry gets updated once the peer capabilities are known */
4354 if (info->attrs[NL80211_ATTR_PEER_AID])
4355 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4356 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4358 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4359 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4361 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4363 err = nl80211_parse_sta_channel_info(info, params);
4367 return nl80211_parse_sta_wme(info, params);
4370 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4373 struct net_device *dev = info->user_ptr[1];
4374 struct station_parameters params;
4378 memset(¶ms, 0, sizeof(params));
4380 if (!rdev->ops->change_station)
4384 * AID and listen_interval properties can be set only for unassociated
4385 * station. Include these parameters here and will check them in
4386 * cfg80211_check_station_change().
4388 if (info->attrs[NL80211_ATTR_STA_AID])
4389 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4391 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4392 params.listen_interval =
4393 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4395 params.listen_interval = -1;
4397 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4400 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4401 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4404 params.support_p2p_ps = tmp;
4406 params.support_p2p_ps = -1;
4409 if (!info->attrs[NL80211_ATTR_MAC])
4412 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4414 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4415 params.supported_rates =
4416 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4417 params.supported_rates_len =
4418 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4421 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4423 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4424 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4427 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4429 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4430 params.ext_capab_len =
4431 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4434 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4437 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4438 params.plink_action =
4439 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4440 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4444 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4445 params.plink_state =
4446 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4447 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4449 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4450 params.peer_aid = nla_get_u16(
4451 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4452 if (params.peer_aid > IEEE80211_MAX_AID)
4455 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4458 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4459 enum nl80211_mesh_power_mode pm = nla_get_u32(
4460 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4462 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4463 pm > NL80211_MESH_POWER_MAX)
4466 params.local_pm = pm;
4469 /* Include parameters for TDLS peer (will check later) */
4470 err = nl80211_set_station_tdls(info, ¶ms);
4474 params.vlan = get_vlan(info, rdev);
4475 if (IS_ERR(params.vlan))
4476 return PTR_ERR(params.vlan);
4478 switch (dev->ieee80211_ptr->iftype) {
4479 case NL80211_IFTYPE_AP:
4480 case NL80211_IFTYPE_AP_VLAN:
4481 case NL80211_IFTYPE_P2P_GO:
4482 case NL80211_IFTYPE_P2P_CLIENT:
4483 case NL80211_IFTYPE_STATION:
4484 case NL80211_IFTYPE_ADHOC:
4485 case NL80211_IFTYPE_MESH_POINT:
4492 /* driver will call cfg80211_check_station_change() */
4493 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4497 dev_put(params.vlan);
4502 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4506 struct net_device *dev = info->user_ptr[1];
4507 struct station_parameters params;
4508 u8 *mac_addr = NULL;
4509 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4510 BIT(NL80211_STA_FLAG_ASSOCIATED);
4512 memset(¶ms, 0, sizeof(params));
4514 if (!rdev->ops->add_station)
4517 if (!info->attrs[NL80211_ATTR_MAC])
4520 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4523 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4526 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4527 !info->attrs[NL80211_ATTR_PEER_AID])
4530 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4531 params.supported_rates =
4532 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4533 params.supported_rates_len =
4534 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4535 params.listen_interval =
4536 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4538 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4541 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4542 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4545 params.support_p2p_ps = tmp;
4548 * if not specified, assume it's supported for P2P GO interface,
4549 * and is NOT supported for AP interface
4551 params.support_p2p_ps =
4552 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4555 if (info->attrs[NL80211_ATTR_PEER_AID])
4556 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4558 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4559 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4562 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4564 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4565 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4568 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4570 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4571 params.ext_capab_len =
4572 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4575 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4577 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4579 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4581 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4583 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4584 params.opmode_notif_used = true;
4585 params.opmode_notif =
4586 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4589 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4590 params.plink_action =
4591 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4592 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4596 err = nl80211_parse_sta_channel_info(info, ¶ms);
4600 err = nl80211_parse_sta_wme(info, ¶ms);
4604 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4607 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4608 * as userspace might just pass through the capabilities from the IEs
4609 * directly, rather than enforcing this restriction and returning an
4610 * error in this case.
4612 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4613 params.ht_capa = NULL;
4614 params.vht_capa = NULL;
4617 /* When you run into this, adjust the code below for the new flag */
4618 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4620 switch (dev->ieee80211_ptr->iftype) {
4621 case NL80211_IFTYPE_AP:
4622 case NL80211_IFTYPE_AP_VLAN:
4623 case NL80211_IFTYPE_P2P_GO:
4624 /* ignore WME attributes if iface/sta is not capable */
4625 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4626 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4627 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4629 /* TDLS peers cannot be added */
4630 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4631 info->attrs[NL80211_ATTR_PEER_AID])
4633 /* but don't bother the driver with it */
4634 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4636 /* allow authenticated/associated only if driver handles it */
4637 if (!(rdev->wiphy.features &
4638 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4639 params.sta_flags_mask & auth_assoc)
4642 /* Older userspace, or userspace wanting to be compatible with
4643 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4644 * and assoc flags in the mask, but assumes the station will be
4645 * added as associated anyway since this was the required driver
4646 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4648 * In order to not bother drivers with this quirk in the API
4649 * set the flags in both the mask and set for new stations in
4652 if (!(params.sta_flags_mask & auth_assoc)) {
4653 params.sta_flags_mask |= auth_assoc;
4654 params.sta_flags_set |= auth_assoc;
4657 /* must be last in here for error handling */
4658 params.vlan = get_vlan(info, rdev);
4659 if (IS_ERR(params.vlan))
4660 return PTR_ERR(params.vlan);
4662 case NL80211_IFTYPE_MESH_POINT:
4663 /* ignore uAPSD data */
4664 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4666 /* associated is disallowed */
4667 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4669 /* TDLS peers cannot be added */
4670 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4671 info->attrs[NL80211_ATTR_PEER_AID])
4674 case NL80211_IFTYPE_STATION:
4675 case NL80211_IFTYPE_P2P_CLIENT:
4676 /* ignore uAPSD data */
4677 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4679 /* these are disallowed */
4680 if (params.sta_flags_mask &
4681 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4682 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4684 /* Only TDLS peers can be added */
4685 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4687 /* Can only add if TDLS ... */
4688 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4690 /* ... with external setup is supported */
4691 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4694 * Older wpa_supplicant versions always mark the TDLS peer
4695 * as authorized, but it shouldn't yet be.
4697 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4703 /* be aware of params.vlan when changing code here */
4705 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4708 dev_put(params.vlan);
4712 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4715 struct net_device *dev = info->user_ptr[1];
4716 struct station_del_parameters params;
4718 memset(¶ms, 0, sizeof(params));
4720 if (info->attrs[NL80211_ATTR_MAC])
4721 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4723 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4724 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4725 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4726 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4729 if (!rdev->ops->del_station)
4732 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4734 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4735 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4736 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4739 /* Default to Deauthentication frame */
4740 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4743 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4744 params.reason_code =
4745 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4746 if (params.reason_code == 0)
4747 return -EINVAL; /* 0 is reserved */
4749 /* Default to reason code 2 */
4750 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4753 return rdev_del_station(rdev, dev, ¶ms);
4756 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4757 int flags, struct net_device *dev,
4758 u8 *dst, u8 *next_hop,
4759 struct mpath_info *pinfo)
4762 struct nlattr *pinfoattr;
4764 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4768 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4769 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4770 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4771 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4772 goto nla_put_failure;
4774 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4776 goto nla_put_failure;
4777 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4778 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4780 goto nla_put_failure;
4781 if (((pinfo->filled & MPATH_INFO_SN) &&
4782 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4783 ((pinfo->filled & MPATH_INFO_METRIC) &&
4784 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4786 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4787 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4789 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4790 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4792 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4793 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4794 pinfo->discovery_timeout)) ||
4795 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4796 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4797 pinfo->discovery_retries)))
4798 goto nla_put_failure;
4800 nla_nest_end(msg, pinfoattr);
4802 genlmsg_end(msg, hdr);
4806 genlmsg_cancel(msg, hdr);
4810 static int nl80211_dump_mpath(struct sk_buff *skb,
4811 struct netlink_callback *cb)
4813 struct mpath_info pinfo;
4814 struct cfg80211_registered_device *rdev;
4815 struct wireless_dev *wdev;
4817 u8 next_hop[ETH_ALEN];
4818 int path_idx = cb->args[2];
4821 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4825 if (!rdev->ops->dump_mpath) {
4830 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4836 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4843 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4844 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4845 wdev->netdev, dst, next_hop,
4853 cb->args[2] = path_idx;
4856 nl80211_finish_wdev_dump(rdev);
4860 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4864 struct net_device *dev = info->user_ptr[1];
4865 struct mpath_info pinfo;
4866 struct sk_buff *msg;
4868 u8 next_hop[ETH_ALEN];
4870 memset(&pinfo, 0, sizeof(pinfo));
4872 if (!info->attrs[NL80211_ATTR_MAC])
4875 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4877 if (!rdev->ops->get_mpath)
4880 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4883 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4887 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4891 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4892 dev, dst, next_hop, &pinfo) < 0) {
4897 return genlmsg_reply(msg, info);
4900 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4903 struct net_device *dev = info->user_ptr[1];
4905 u8 *next_hop = NULL;
4907 if (!info->attrs[NL80211_ATTR_MAC])
4910 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4913 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4914 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4916 if (!rdev->ops->change_mpath)
4919 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4922 return rdev_change_mpath(rdev, dev, dst, next_hop);
4925 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4927 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4928 struct net_device *dev = info->user_ptr[1];
4930 u8 *next_hop = NULL;
4932 if (!info->attrs[NL80211_ATTR_MAC])
4935 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4938 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4939 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4941 if (!rdev->ops->add_mpath)
4944 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4947 return rdev_add_mpath(rdev, dev, dst, next_hop);
4950 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4953 struct net_device *dev = info->user_ptr[1];
4956 if (info->attrs[NL80211_ATTR_MAC])
4957 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4959 if (!rdev->ops->del_mpath)
4962 return rdev_del_mpath(rdev, dev, dst);
4965 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4969 struct net_device *dev = info->user_ptr[1];
4970 struct mpath_info pinfo;
4971 struct sk_buff *msg;
4975 memset(&pinfo, 0, sizeof(pinfo));
4977 if (!info->attrs[NL80211_ATTR_MAC])
4980 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4982 if (!rdev->ops->get_mpp)
4985 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4988 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4992 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4996 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4997 dev, dst, mpp, &pinfo) < 0) {
5002 return genlmsg_reply(msg, info);
5005 static int nl80211_dump_mpp(struct sk_buff *skb,
5006 struct netlink_callback *cb)
5008 struct mpath_info pinfo;
5009 struct cfg80211_registered_device *rdev;
5010 struct wireless_dev *wdev;
5013 int path_idx = cb->args[2];
5016 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5020 if (!rdev->ops->dump_mpp) {
5025 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5031 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5038 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5039 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5040 wdev->netdev, dst, mpp,
5048 cb->args[2] = path_idx;
5051 nl80211_finish_wdev_dump(rdev);
5055 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5058 struct net_device *dev = info->user_ptr[1];
5059 struct wireless_dev *wdev = dev->ieee80211_ptr;
5060 struct bss_parameters params;
5063 memset(¶ms, 0, sizeof(params));
5064 /* default to not changing parameters */
5065 params.use_cts_prot = -1;
5066 params.use_short_preamble = -1;
5067 params.use_short_slot_time = -1;
5068 params.ap_isolate = -1;
5069 params.ht_opmode = -1;
5070 params.p2p_ctwindow = -1;
5071 params.p2p_opp_ps = -1;
5073 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5074 params.use_cts_prot =
5075 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5076 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5077 params.use_short_preamble =
5078 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5079 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5080 params.use_short_slot_time =
5081 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
5082 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5083 params.basic_rates =
5084 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5085 params.basic_rates_len =
5086 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5088 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5089 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
5090 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5092 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
5094 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5095 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5097 params.p2p_ctwindow =
5098 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5099 if (params.p2p_ctwindow < 0)
5101 if (params.p2p_ctwindow != 0 &&
5102 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5106 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5109 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5111 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5114 params.p2p_opp_ps = tmp;
5115 if (params.p2p_opp_ps &&
5116 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5120 if (!rdev->ops->change_bss)
5123 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5124 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5128 err = rdev_change_bss(rdev, dev, ¶ms);
5134 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5138 enum nl80211_user_reg_hint_type user_reg_hint_type;
5142 * You should only get this when cfg80211 hasn't yet initialized
5143 * completely when built-in to the kernel right between the time
5144 * window between nl80211_init() and regulatory_init(), if that is
5147 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5148 return -EINPROGRESS;
5150 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5151 user_reg_hint_type =
5152 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5154 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5156 switch (user_reg_hint_type) {
5157 case NL80211_USER_REG_HINT_USER:
5158 case NL80211_USER_REG_HINT_CELL_BASE:
5159 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5162 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5163 return regulatory_hint_user(data, user_reg_hint_type);
5164 case NL80211_USER_REG_HINT_INDOOR:
5165 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5166 owner_nlportid = info->snd_portid;
5167 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5173 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5179 static int nl80211_get_mesh_config(struct sk_buff *skb,
5180 struct genl_info *info)
5182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5183 struct net_device *dev = info->user_ptr[1];
5184 struct wireless_dev *wdev = dev->ieee80211_ptr;
5185 struct mesh_config cur_params;
5188 struct nlattr *pinfoattr;
5189 struct sk_buff *msg;
5191 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5194 if (!rdev->ops->get_mesh_config)
5198 /* If not connected, get default parameters */
5199 if (!wdev->mesh_id_len)
5200 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5202 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5208 /* Draw up a netlink message to send back */
5209 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5212 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5213 NL80211_CMD_GET_MESH_CONFIG);
5216 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5218 goto nla_put_failure;
5219 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5220 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5221 cur_params.dot11MeshRetryTimeout) ||
5222 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5223 cur_params.dot11MeshConfirmTimeout) ||
5224 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5225 cur_params.dot11MeshHoldingTimeout) ||
5226 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5227 cur_params.dot11MeshMaxPeerLinks) ||
5228 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5229 cur_params.dot11MeshMaxRetries) ||
5230 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5231 cur_params.dot11MeshTTL) ||
5232 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5233 cur_params.element_ttl) ||
5234 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5235 cur_params.auto_open_plinks) ||
5236 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5237 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5238 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5239 cur_params.dot11MeshHWMPmaxPREQretries) ||
5240 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5241 cur_params.path_refresh_time) ||
5242 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5243 cur_params.min_discovery_timeout) ||
5244 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5245 cur_params.dot11MeshHWMPactivePathTimeout) ||
5246 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5247 cur_params.dot11MeshHWMPpreqMinInterval) ||
5248 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5249 cur_params.dot11MeshHWMPperrMinInterval) ||
5250 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5251 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5252 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5253 cur_params.dot11MeshHWMPRootMode) ||
5254 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5255 cur_params.dot11MeshHWMPRannInterval) ||
5256 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5257 cur_params.dot11MeshGateAnnouncementProtocol) ||
5258 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5259 cur_params.dot11MeshForwarding) ||
5260 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5261 cur_params.rssi_threshold) ||
5262 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5263 cur_params.ht_opmode) ||
5264 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5265 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5266 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5267 cur_params.dot11MeshHWMProotInterval) ||
5268 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5269 cur_params.dot11MeshHWMPconfirmationInterval) ||
5270 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5271 cur_params.power_mode) ||
5272 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5273 cur_params.dot11MeshAwakeWindowDuration) ||
5274 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5275 cur_params.plink_timeout))
5276 goto nla_put_failure;
5277 nla_nest_end(msg, pinfoattr);
5278 genlmsg_end(msg, hdr);
5279 return genlmsg_reply(msg, info);
5282 genlmsg_cancel(msg, hdr);
5288 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5289 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5290 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5291 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5292 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5293 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5294 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5295 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5296 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5297 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5298 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5299 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5300 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5301 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5302 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5303 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5304 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5305 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5306 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5307 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5308 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5309 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5310 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5311 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5312 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5313 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5314 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5315 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5316 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5319 static const struct nla_policy
5320 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5321 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5322 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5323 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5324 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5325 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5326 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5327 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5328 .len = IEEE80211_MAX_DATA_LEN },
5329 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5332 static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5334 u8 val = nla_get_u8(nla);
5335 if (val < min || val > max)
5341 static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5343 u8 val = nla_get_u8(nla);
5344 if (val < min || val > max)
5350 static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5352 u16 val = nla_get_u16(nla);
5353 if (val < min || val > max)
5359 static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5361 u32 val = nla_get_u32(nla);
5362 if (val < min || val > max)
5368 static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5370 s32 val = nla_get_s32(nla);
5371 if (val < min || val > max)
5377 static int nl80211_parse_mesh_config(struct genl_info *info,
5378 struct mesh_config *cfg,
5381 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5384 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5387 if (fn(tb[attr], min, max, &cfg->param)) \
5389 mask |= (1 << (attr - 1)); \
5393 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5395 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5396 info->attrs[NL80211_ATTR_MESH_CONFIG],
5397 nl80211_meshconf_params_policy))
5400 /* This makes sure that there aren't more than 32 mesh config
5401 * parameters (otherwise our bitfield scheme would not work.) */
5402 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5404 /* Fill in the params struct */
5405 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5406 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5409 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5411 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5412 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5414 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5415 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5417 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5418 mask, NL80211_MESHCONF_MAX_RETRIES,
5420 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5421 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
5422 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5423 mask, NL80211_MESHCONF_ELEMENT_TTL,
5425 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5426 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5427 nl80211_check_bool);
5428 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5430 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5432 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5433 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5435 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5436 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5438 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5439 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5441 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5443 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5445 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5447 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5449 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5451 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5453 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5454 dot11MeshHWMPnetDiameterTraversalTime,
5456 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5458 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5459 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5461 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5462 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5464 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5465 dot11MeshGateAnnouncementProtocol, 0, 1,
5466 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5467 nl80211_check_bool);
5468 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5469 mask, NL80211_MESHCONF_FORWARDING,
5470 nl80211_check_bool);
5471 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5472 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5474 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5475 mask, NL80211_MESHCONF_HT_OPMODE,
5477 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5479 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5481 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5482 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5484 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5485 dot11MeshHWMPconfirmationInterval,
5487 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5489 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5490 NL80211_MESH_POWER_ACTIVE,
5491 NL80211_MESH_POWER_MAX,
5492 mask, NL80211_MESHCONF_POWER_MODE,
5494 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5496 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
5497 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5498 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5505 #undef FILL_IN_MESH_PARAM_IF_SET
5508 static int nl80211_parse_mesh_setup(struct genl_info *info,
5509 struct mesh_setup *setup)
5511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5512 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5514 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5516 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5517 info->attrs[NL80211_ATTR_MESH_SETUP],
5518 nl80211_mesh_setup_params_policy))
5521 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5522 setup->sync_method =
5523 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5524 IEEE80211_SYNC_METHOD_VENDOR :
5525 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5527 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5528 setup->path_sel_proto =
5529 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5530 IEEE80211_PATH_PROTOCOL_VENDOR :
5531 IEEE80211_PATH_PROTOCOL_HWMP;
5533 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5534 setup->path_metric =
5535 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5536 IEEE80211_PATH_METRIC_VENDOR :
5537 IEEE80211_PATH_METRIC_AIRTIME;
5539 if (tb[NL80211_MESH_SETUP_IE]) {
5540 struct nlattr *ieattr =
5541 tb[NL80211_MESH_SETUP_IE];
5542 if (!is_valid_ie_attr(ieattr))
5544 setup->ie = nla_data(ieattr);
5545 setup->ie_len = nla_len(ieattr);
5547 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5548 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5550 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5551 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5552 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5553 if (setup->is_secure)
5554 setup->user_mpm = true;
5556 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5557 if (!setup->user_mpm)
5560 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5566 static int nl80211_update_mesh_config(struct sk_buff *skb,
5567 struct genl_info *info)
5569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5570 struct net_device *dev = info->user_ptr[1];
5571 struct wireless_dev *wdev = dev->ieee80211_ptr;
5572 struct mesh_config cfg;
5576 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5579 if (!rdev->ops->update_mesh_config)
5582 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5587 if (!wdev->mesh_id_len)
5591 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5598 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5599 struct sk_buff *msg)
5601 struct nlattr *nl_reg_rules;
5604 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5605 (regdom->dfs_region &&
5606 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5607 goto nla_put_failure;
5609 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5611 goto nla_put_failure;
5613 for (i = 0; i < regdom->n_reg_rules; i++) {
5614 struct nlattr *nl_reg_rule;
5615 const struct ieee80211_reg_rule *reg_rule;
5616 const struct ieee80211_freq_range *freq_range;
5617 const struct ieee80211_power_rule *power_rule;
5618 unsigned int max_bandwidth_khz;
5620 reg_rule = ®dom->reg_rules[i];
5621 freq_range = ®_rule->freq_range;
5622 power_rule = ®_rule->power_rule;
5624 nl_reg_rule = nla_nest_start(msg, i);
5626 goto nla_put_failure;
5628 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5629 if (!max_bandwidth_khz)
5630 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5633 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5635 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5636 freq_range->start_freq_khz) ||
5637 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5638 freq_range->end_freq_khz) ||
5639 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5640 max_bandwidth_khz) ||
5641 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5642 power_rule->max_antenna_gain) ||
5643 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5644 power_rule->max_eirp) ||
5645 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5646 reg_rule->dfs_cac_ms))
5647 goto nla_put_failure;
5649 nla_nest_end(msg, nl_reg_rule);
5652 nla_nest_end(msg, nl_reg_rules);
5659 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5661 const struct ieee80211_regdomain *regdom = NULL;
5662 struct cfg80211_registered_device *rdev;
5663 struct wiphy *wiphy = NULL;
5664 struct sk_buff *msg;
5667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5671 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5672 NL80211_CMD_GET_REG);
5676 if (info->attrs[NL80211_ATTR_WIPHY]) {
5679 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5682 return PTR_ERR(rdev);
5685 wiphy = &rdev->wiphy;
5686 self_managed = wiphy->regulatory_flags &
5687 REGULATORY_WIPHY_SELF_MANAGED;
5688 regdom = get_wiphy_regdom(wiphy);
5690 /* a self-managed-reg device must have a private regdom */
5691 if (WARN_ON(!regdom && self_managed)) {
5697 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5698 goto nla_put_failure;
5701 if (!wiphy && reg_last_request_cell_base() &&
5702 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5703 NL80211_USER_REG_HINT_CELL_BASE))
5704 goto nla_put_failure;
5709 regdom = rcu_dereference(cfg80211_regdomain);
5711 if (nl80211_put_regdom(regdom, msg))
5712 goto nla_put_failure_rcu;
5716 genlmsg_end(msg, hdr);
5717 return genlmsg_reply(msg, info);
5719 nla_put_failure_rcu:
5722 genlmsg_cancel(msg, hdr);
5728 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5729 u32 seq, int flags, struct wiphy *wiphy,
5730 const struct ieee80211_regdomain *regdom)
5732 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5733 NL80211_CMD_GET_REG);
5738 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5740 if (nl80211_put_regdom(regdom, msg))
5741 goto nla_put_failure;
5743 if (!wiphy && reg_last_request_cell_base() &&
5744 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5745 NL80211_USER_REG_HINT_CELL_BASE))
5746 goto nla_put_failure;
5749 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5750 goto nla_put_failure;
5752 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5753 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5754 goto nla_put_failure;
5756 genlmsg_end(msg, hdr);
5760 genlmsg_cancel(msg, hdr);
5764 static int nl80211_get_reg_dump(struct sk_buff *skb,
5765 struct netlink_callback *cb)
5767 const struct ieee80211_regdomain *regdom = NULL;
5768 struct cfg80211_registered_device *rdev;
5769 int err, reg_idx, start = cb->args[2];
5773 if (cfg80211_regdomain && start == 0) {
5774 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5776 rtnl_dereference(cfg80211_regdomain));
5781 /* the global regdom is idx 0 */
5783 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5784 regdom = get_wiphy_regdom(&rdev->wiphy);
5788 if (++reg_idx <= start)
5791 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5792 NLM_F_MULTI, &rdev->wiphy, regdom);
5799 cb->args[2] = reg_idx;
5806 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
5807 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5808 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5809 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5810 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5811 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5812 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5813 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5814 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5817 static int parse_reg_rule(struct nlattr *tb[],
5818 struct ieee80211_reg_rule *reg_rule)
5820 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
5821 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
5823 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5825 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5827 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5829 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5831 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5834 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5836 freq_range->start_freq_khz =
5837 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5838 freq_range->end_freq_khz =
5839 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5840 freq_range->max_bandwidth_khz =
5841 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5843 power_rule->max_eirp =
5844 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5846 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5847 power_rule->max_antenna_gain =
5848 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5850 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5851 reg_rule->dfs_cac_ms =
5852 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5857 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5859 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5860 struct nlattr *nl_reg_rule;
5862 int rem_reg_rules, r;
5863 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5864 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5865 struct ieee80211_regdomain *rd;
5867 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5870 if (!info->attrs[NL80211_ATTR_REG_RULES])
5873 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5875 if (info->attrs[NL80211_ATTR_DFS_REGION])
5876 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5878 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5881 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5885 if (!reg_is_valid_request(alpha2))
5888 size_of_regd = sizeof(struct ieee80211_regdomain) +
5889 num_rules * sizeof(struct ieee80211_reg_rule);
5891 rd = kzalloc(size_of_regd, GFP_KERNEL);
5895 rd->n_reg_rules = num_rules;
5896 rd->alpha2[0] = alpha2[0];
5897 rd->alpha2[1] = alpha2[1];
5900 * Disable DFS master mode if the DFS region was
5901 * not supported or known on this kernel.
5903 if (reg_supported_dfs_region(dfs_region))
5904 rd->dfs_region = dfs_region;
5906 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5908 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5909 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5913 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5919 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5925 /* set_regdom takes ownership of rd */
5926 return set_regdom(rd, REGD_SOURCE_CRDA);
5931 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
5933 static int validate_scan_freqs(struct nlattr *freqs)
5935 struct nlattr *attr1, *attr2;
5936 int n_channels = 0, tmp1, tmp2;
5938 nla_for_each_nested(attr1, freqs, tmp1) {
5941 * Some hardware has a limited channel list for
5942 * scanning, and it is pretty much nonsensical
5943 * to scan for a channel twice, so disallow that
5944 * and don't require drivers to check that the
5945 * channel list they get isn't longer than what
5946 * they can scan, as long as they can scan all
5947 * the channels they registered at once.
5949 nla_for_each_nested(attr2, freqs, tmp2)
5950 if (attr1 != attr2 &&
5951 nla_get_u32(attr1) == nla_get_u32(attr2))
5958 static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
5960 return b < NUM_NL80211_BANDS && wiphy->bands[b];
5963 static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
5964 struct cfg80211_bss_selection *bss_select)
5966 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
5967 struct nlattr *nest;
5972 /* only process one nested attribute */
5973 nest = nla_data(nla);
5974 if (!nla_ok(nest, nla_len(nest)))
5977 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
5978 nla_len(nest), nl80211_bss_select_policy);
5982 /* only one attribute may be given */
5983 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
5991 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
5993 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
5994 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
5996 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
5997 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
5998 bss_select->param.band_pref =
5999 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6000 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6004 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6005 struct nl80211_bss_select_rssi_adjust *adj_param;
6007 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6008 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6009 bss_select->param.adjust.band = adj_param->band;
6010 bss_select->param.adjust.delta = adj_param->delta;
6011 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6015 /* user-space did not provide behaviour attribute */
6016 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6019 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6025 static int nl80211_parse_random_mac(struct nlattr **attrs,
6026 u8 *mac_addr, u8 *mac_addr_mask)
6030 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
6031 eth_zero_addr(mac_addr);
6032 eth_zero_addr(mac_addr_mask);
6034 mac_addr_mask[0] = 0x3;
6039 /* need both or none */
6040 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6043 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6044 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6046 /* don't allow or configure an mcast address */
6047 if (!is_multicast_ether_addr(mac_addr_mask) ||
6048 is_multicast_ether_addr(mac_addr))
6052 * allow users to pass a MAC address that has bits set outside
6053 * of the mask, but don't bother drivers with having to deal
6056 for (i = 0; i < ETH_ALEN; i++)
6057 mac_addr[i] &= mac_addr_mask[i];
6062 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6065 struct wireless_dev *wdev = info->user_ptr[1];
6066 struct cfg80211_scan_request *request;
6067 struct nlattr *attr;
6068 struct wiphy *wiphy;
6069 int err, tmp, n_ssids = 0, n_channels, i;
6072 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6075 wiphy = &rdev->wiphy;
6077 if (!rdev->ops->scan)
6080 if (rdev->scan_req || rdev->scan_msg) {
6085 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6086 n_channels = validate_scan_freqs(
6087 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6093 n_channels = ieee80211_get_num_supported_channels(wiphy);
6096 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6097 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6100 if (n_ssids > wiphy->max_scan_ssids) {
6105 if (info->attrs[NL80211_ATTR_IE])
6106 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6110 if (ie_len > wiphy->max_scan_ie_len) {
6115 request = kzalloc(sizeof(*request)
6116 + sizeof(*request->ssids) * n_ssids
6117 + sizeof(*request->channels) * n_channels
6118 + ie_len, GFP_KERNEL);
6125 request->ssids = (void *)&request->channels[n_channels];
6126 request->n_ssids = n_ssids;
6129 request->ie = (void *)(request->ssids + n_ssids);
6131 request->ie = (void *)(request->channels + n_channels);
6135 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6136 /* user specified, bail out if channel not found */
6137 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
6138 struct ieee80211_channel *chan;
6140 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6147 /* ignore disabled channels */
6148 if (chan->flags & IEEE80211_CHAN_DISABLED)
6151 request->channels[i] = chan;
6155 enum nl80211_band band;
6158 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6161 if (!wiphy->bands[band])
6163 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6164 struct ieee80211_channel *chan;
6166 chan = &wiphy->bands[band]->channels[j];
6168 if (chan->flags & IEEE80211_CHAN_DISABLED)
6171 request->channels[i] = chan;
6182 request->n_channels = i;
6186 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
6187 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6191 request->ssids[i].ssid_len = nla_len(attr);
6192 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
6197 if (info->attrs[NL80211_ATTR_IE]) {
6198 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6199 memcpy((void *)request->ie,
6200 nla_data(info->attrs[NL80211_ATTR_IE]),
6204 for (i = 0; i < NUM_NL80211_BANDS; i++)
6205 if (wiphy->bands[i])
6207 (1 << wiphy->bands[i]->n_bitrates) - 1;
6209 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6210 nla_for_each_nested(attr,
6211 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6213 enum nl80211_band band = nla_type(attr);
6215 if (band < 0 || band >= NUM_NL80211_BANDS) {
6220 if (!wiphy->bands[band])
6223 err = ieee80211_get_ratemask(wiphy->bands[band],
6226 &request->rates[band]);
6232 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6233 if (!wiphy_ext_feature_isset(wiphy,
6234 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6240 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6241 request->duration_mandatory =
6242 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6245 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
6246 request->flags = nla_get_u32(
6247 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
6248 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6249 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6254 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6255 if (!(wiphy->features &
6256 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6261 if (wdev->current_bss) {
6266 err = nl80211_parse_random_mac(info->attrs,
6268 request->mac_addr_mask);
6275 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6277 if (info->attrs[NL80211_ATTR_MAC])
6278 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6281 eth_broadcast_addr(request->bssid);
6283 request->wdev = wdev;
6284 request->wiphy = &rdev->wiphy;
6285 request->scan_start = jiffies;
6287 rdev->scan_req = request;
6288 err = rdev_scan(rdev, request);
6291 nl80211_send_scan_start(rdev, wdev);
6293 dev_hold(wdev->netdev);
6296 rdev->scan_req = NULL;
6304 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6307 struct wireless_dev *wdev = info->user_ptr[1];
6309 if (!rdev->ops->abort_scan)
6315 if (!rdev->scan_req)
6318 rdev_abort_scan(rdev, wdev);
6323 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6324 struct cfg80211_sched_scan_request *request,
6325 struct nlattr **attrs)
6327 int tmp, err, i = 0;
6328 struct nlattr *attr;
6330 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6334 * If scan plans are not specified,
6335 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6336 * case one scan plan will be set with the specified scan
6337 * interval and infinite number of iterations.
6339 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6342 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6346 request->scan_plans[0].interval =
6347 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6348 if (!request->scan_plans[0].interval)
6351 if (request->scan_plans[0].interval >
6352 wiphy->max_sched_scan_plan_interval)
6353 request->scan_plans[0].interval =
6354 wiphy->max_sched_scan_plan_interval;
6359 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6360 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6362 if (WARN_ON(i >= n_plans))
6365 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6366 nla_data(attr), nla_len(attr),
6367 nl80211_plan_policy);
6371 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6374 request->scan_plans[i].interval =
6375 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6376 if (!request->scan_plans[i].interval ||
6377 request->scan_plans[i].interval >
6378 wiphy->max_sched_scan_plan_interval)
6381 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6382 request->scan_plans[i].iterations =
6383 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6384 if (!request->scan_plans[i].iterations ||
6385 (request->scan_plans[i].iterations >
6386 wiphy->max_sched_scan_plan_iterations))
6388 } else if (i < n_plans - 1) {
6390 * All scan plans but the last one must specify
6391 * a finite number of iterations
6400 * The last scan plan must not specify the number of
6401 * iterations, it is supposed to run infinitely
6403 if (request->scan_plans[n_plans - 1].iterations)
6409 static struct cfg80211_sched_scan_request *
6410 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6411 struct nlattr **attrs)
6413 struct cfg80211_sched_scan_request *request;
6414 struct nlattr *attr;
6415 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6416 enum nl80211_band band;
6418 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
6419 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
6421 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6422 return ERR_PTR(-EINVAL);
6424 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6425 n_channels = validate_scan_freqs(
6426 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6428 return ERR_PTR(-EINVAL);
6430 n_channels = ieee80211_get_num_supported_channels(wiphy);
6433 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6434 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6438 if (n_ssids > wiphy->max_sched_scan_ssids)
6439 return ERR_PTR(-EINVAL);
6442 * First, count the number of 'real' matchsets. Due to an issue with
6443 * the old implementation, matchsets containing only the RSSI attribute
6444 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6445 * RSSI for all matchsets, rather than their own matchset for reporting
6446 * all APs with a strong RSSI. This is needed to be compatible with
6447 * older userspace that treated a matchset with only the RSSI as the
6448 * global RSSI for all other matchsets - if there are other matchsets.
6450 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6451 nla_for_each_nested(attr,
6452 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6454 struct nlattr *rssi;
6456 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6457 nla_data(attr), nla_len(attr),
6458 nl80211_match_policy);
6460 return ERR_PTR(err);
6461 /* add other standalone attributes here */
6462 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6466 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6468 default_match_rssi = nla_get_s32(rssi);
6472 /* However, if there's no other matchset, add the RSSI one */
6473 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6476 if (n_match_sets > wiphy->max_match_sets)
6477 return ERR_PTR(-EINVAL);
6479 if (attrs[NL80211_ATTR_IE])
6480 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6484 if (ie_len > wiphy->max_sched_scan_ie_len)
6485 return ERR_PTR(-EINVAL);
6487 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6489 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6490 * each scan plan already specifies its own interval
6492 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6493 return ERR_PTR(-EINVAL);
6495 nla_for_each_nested(attr,
6496 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6500 * The scan interval attribute is kept for backward
6501 * compatibility. If no scan plans are specified and sched scan
6502 * interval is specified, one scan plan will be set with this
6503 * scan interval and infinite number of iterations.
6505 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6506 return ERR_PTR(-EINVAL);
6511 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6512 return ERR_PTR(-EINVAL);
6514 request = kzalloc(sizeof(*request)
6515 + sizeof(*request->ssids) * n_ssids
6516 + sizeof(*request->match_sets) * n_match_sets
6517 + sizeof(*request->scan_plans) * n_plans
6518 + sizeof(*request->channels) * n_channels
6519 + ie_len, GFP_KERNEL);
6521 return ERR_PTR(-ENOMEM);
6524 request->ssids = (void *)&request->channels[n_channels];
6525 request->n_ssids = n_ssids;
6528 request->ie = (void *)(request->ssids + n_ssids);
6530 request->ie = (void *)(request->channels + n_channels);
6535 request->match_sets = (void *)(request->ie + ie_len);
6537 request->match_sets =
6538 (void *)(request->ssids + n_ssids);
6540 request->match_sets =
6541 (void *)(request->channels + n_channels);
6543 request->n_match_sets = n_match_sets;
6546 request->scan_plans = (void *)(request->match_sets +
6548 else if (request->ie)
6549 request->scan_plans = (void *)(request->ie + ie_len);
6551 request->scan_plans = (void *)(request->ssids + n_ssids);
6553 request->scan_plans = (void *)(request->channels + n_channels);
6555 request->n_scan_plans = n_plans;
6558 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6559 /* user specified, bail out if channel not found */
6560 nla_for_each_nested(attr,
6561 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
6563 struct ieee80211_channel *chan;
6565 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6572 /* ignore disabled channels */
6573 if (chan->flags & IEEE80211_CHAN_DISABLED)
6576 request->channels[i] = chan;
6581 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6584 if (!wiphy->bands[band])
6586 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6587 struct ieee80211_channel *chan;
6589 chan = &wiphy->bands[band]->channels[j];
6591 if (chan->flags & IEEE80211_CHAN_DISABLED)
6594 request->channels[i] = chan;
6605 request->n_channels = i;
6609 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6611 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6615 request->ssids[i].ssid_len = nla_len(attr);
6616 memcpy(request->ssids[i].ssid, nla_data(attr),
6623 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6624 nla_for_each_nested(attr,
6625 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6627 struct nlattr *ssid, *rssi;
6629 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6630 nla_data(attr), nla_len(attr),
6631 nl80211_match_policy);
6634 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
6636 if (WARN_ON(i >= n_match_sets)) {
6637 /* this indicates a programming error,
6638 * the loop above should have verified
6645 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6649 memcpy(request->match_sets[i].ssid.ssid,
6650 nla_data(ssid), nla_len(ssid));
6651 request->match_sets[i].ssid.ssid_len =
6653 /* special attribute - old implementation w/a */
6654 request->match_sets[i].rssi_thold =
6656 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6658 request->match_sets[i].rssi_thold =
6664 /* there was no other matchset, so the RSSI one is alone */
6665 if (i == 0 && n_match_sets)
6666 request->match_sets[0].rssi_thold = default_match_rssi;
6668 request->min_rssi_thold = INT_MAX;
6669 for (i = 0; i < n_match_sets; i++)
6670 request->min_rssi_thold =
6671 min(request->match_sets[i].rssi_thold,
6672 request->min_rssi_thold);
6674 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6678 request->ie_len = ie_len;
6679 memcpy((void *)request->ie,
6680 nla_data(attrs[NL80211_ATTR_IE]),
6684 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6685 request->flags = nla_get_u32(
6686 attrs[NL80211_ATTR_SCAN_FLAGS]);
6687 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6688 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6693 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6694 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6696 if (!wdev) /* must be net-detect */
6697 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6699 if (!(wiphy->features & flg)) {
6704 if (wdev && wdev->current_bss) {
6709 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6710 request->mac_addr_mask);
6716 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6718 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6720 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6724 request->scan_start = jiffies;
6730 return ERR_PTR(err);
6733 static int nl80211_start_sched_scan(struct sk_buff *skb,
6734 struct genl_info *info)
6736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6737 struct net_device *dev = info->user_ptr[1];
6738 struct wireless_dev *wdev = dev->ieee80211_ptr;
6739 struct cfg80211_sched_scan_request *sched_scan_req;
6742 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6743 !rdev->ops->sched_scan_start)
6746 if (rdev->sched_scan_req)
6747 return -EINPROGRESS;
6749 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6752 err = PTR_ERR_OR_ZERO(sched_scan_req);
6756 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
6760 sched_scan_req->dev = dev;
6761 sched_scan_req->wiphy = &rdev->wiphy;
6763 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6764 sched_scan_req->owner_nlportid = info->snd_portid;
6766 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
6768 nl80211_send_sched_scan(rdev, dev,
6769 NL80211_CMD_START_SCHED_SCAN);
6773 kfree(sched_scan_req);
6778 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6779 struct genl_info *info)
6781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6783 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6784 !rdev->ops->sched_scan_stop)
6787 return __cfg80211_stop_sched_scan(rdev, false);
6790 static int nl80211_start_radar_detection(struct sk_buff *skb,
6791 struct genl_info *info)
6793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6794 struct net_device *dev = info->user_ptr[1];
6795 struct wireless_dev *wdev = dev->ieee80211_ptr;
6796 struct cfg80211_chan_def chandef;
6797 enum nl80211_dfs_regions dfs_region;
6798 unsigned int cac_time_ms;
6801 dfs_region = reg_get_dfs_region(wdev->wiphy);
6802 if (dfs_region == NL80211_DFS_UNSET)
6805 err = nl80211_parse_chandef(rdev, info, &chandef);
6809 if (netif_carrier_ok(dev))
6812 if (wdev->cac_started)
6815 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6823 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6826 if (!rdev->ops->start_radar_detection)
6829 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6830 if (WARN_ON(!cac_time_ms))
6831 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6833 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
6835 wdev->chandef = chandef;
6836 wdev->cac_started = true;
6837 wdev->cac_start_time = jiffies;
6838 wdev->cac_time_ms = cac_time_ms;
6843 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6846 struct net_device *dev = info->user_ptr[1];
6847 struct wireless_dev *wdev = dev->ieee80211_ptr;
6848 struct cfg80211_csa_settings params;
6849 /* csa_attrs is defined static to avoid waste of stack size - this
6850 * function is called under RTNL lock, so this should not be a problem.
6852 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6854 bool need_new_beacon = false;
6858 if (!rdev->ops->channel_switch ||
6859 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6862 switch (dev->ieee80211_ptr->iftype) {
6863 case NL80211_IFTYPE_AP:
6864 case NL80211_IFTYPE_P2P_GO:
6865 need_new_beacon = true;
6867 /* useless if AP is not running */
6868 if (!wdev->beacon_interval)
6871 case NL80211_IFTYPE_ADHOC:
6872 if (!wdev->ssid_len)
6875 case NL80211_IFTYPE_MESH_POINT:
6876 if (!wdev->mesh_id_len)
6883 memset(¶ms, 0, sizeof(params));
6885 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6886 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6889 /* only important for AP, IBSS and mesh create IEs internally */
6890 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6893 /* Even though the attribute is u32, the specification says
6894 * u8, so let's make sure we don't overflow.
6896 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6900 params.count = cs_count;
6902 if (!need_new_beacon)
6905 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6909 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6910 info->attrs[NL80211_ATTR_CSA_IES],
6915 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6919 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6922 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6923 if (!len || (len % sizeof(u16)))
6926 params.n_counter_offsets_beacon = len / sizeof(u16);
6927 if (rdev->wiphy.max_num_csa_counters &&
6928 (params.n_counter_offsets_beacon >
6929 rdev->wiphy.max_num_csa_counters))
6932 params.counter_offsets_beacon =
6933 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6935 /* sanity checks - counters should fit and be the same */
6936 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6937 u16 offset = params.counter_offsets_beacon[i];
6939 if (offset >= params.beacon_csa.tail_len)
6942 if (params.beacon_csa.tail[offset] != params.count)
6946 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6947 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6948 if (!len || (len % sizeof(u16)))
6951 params.n_counter_offsets_presp = len / sizeof(u16);
6952 if (rdev->wiphy.max_num_csa_counters &&
6953 (params.n_counter_offsets_beacon >
6954 rdev->wiphy.max_num_csa_counters))
6957 params.counter_offsets_presp =
6958 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6960 /* sanity checks - counters should fit and be the same */
6961 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6962 u16 offset = params.counter_offsets_presp[i];
6964 if (offset >= params.beacon_csa.probe_resp_len)
6967 if (params.beacon_csa.probe_resp[offset] !=
6974 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6978 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
6982 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6989 params.radar_required = true;
6991 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6992 params.block_tx = true;
6995 err = rdev_channel_switch(rdev, dev, ¶ms);
7001 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7003 struct cfg80211_registered_device *rdev,
7004 struct wireless_dev *wdev,
7005 struct cfg80211_internal_bss *intbss)
7007 struct cfg80211_bss *res = &intbss->pub;
7008 const struct cfg80211_bss_ies *ies;
7012 ASSERT_WDEV_LOCK(wdev);
7014 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
7015 NL80211_CMD_NEW_SCAN_RESULTS);
7019 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7021 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7022 goto nla_put_failure;
7024 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7025 goto nla_put_failure;
7026 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7028 goto nla_put_failure;
7030 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7032 goto nla_put_failure;
7033 if ((!is_zero_ether_addr(res->bssid) &&
7034 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
7035 goto nla_put_failure;
7038 /* indicate whether we have probe response data or not */
7039 if (rcu_access_pointer(res->proberesp_ies) &&
7040 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7041 goto fail_unlock_rcu;
7043 /* this pointer prefers to be pointed to probe response data
7044 * but is always valid
7046 ies = rcu_dereference(res->ies);
7048 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7050 goto fail_unlock_rcu;
7051 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7052 ies->len, ies->data))
7053 goto fail_unlock_rcu;
7056 /* and this pointer is always (unless driver didn't know) beacon data */
7057 ies = rcu_dereference(res->beacon_ies);
7058 if (ies && ies->from_beacon) {
7059 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7061 goto fail_unlock_rcu;
7062 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7063 ies->len, ies->data))
7064 goto fail_unlock_rcu;
7068 if (res->beacon_interval &&
7069 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7070 goto nla_put_failure;
7071 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7072 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
7073 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
7074 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7075 jiffies_to_msecs(jiffies - intbss->ts)))
7076 goto nla_put_failure;
7078 if (intbss->parent_tsf &&
7079 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7080 intbss->parent_tsf, NL80211_BSS_PAD) ||
7081 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7082 intbss->parent_bssid)))
7083 goto nla_put_failure;
7085 if (intbss->ts_boottime &&
7086 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7087 intbss->ts_boottime, NL80211_BSS_PAD))
7088 goto nla_put_failure;
7090 switch (rdev->wiphy.signal_type) {
7091 case CFG80211_SIGNAL_TYPE_MBM:
7092 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7093 goto nla_put_failure;
7095 case CFG80211_SIGNAL_TYPE_UNSPEC:
7096 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7097 goto nla_put_failure;
7103 switch (wdev->iftype) {
7104 case NL80211_IFTYPE_P2P_CLIENT:
7105 case NL80211_IFTYPE_STATION:
7106 if (intbss == wdev->current_bss &&
7107 nla_put_u32(msg, NL80211_BSS_STATUS,
7108 NL80211_BSS_STATUS_ASSOCIATED))
7109 goto nla_put_failure;
7111 case NL80211_IFTYPE_ADHOC:
7112 if (intbss == wdev->current_bss &&
7113 nla_put_u32(msg, NL80211_BSS_STATUS,
7114 NL80211_BSS_STATUS_IBSS_JOINED))
7115 goto nla_put_failure;
7121 nla_nest_end(msg, bss);
7123 genlmsg_end(msg, hdr);
7129 genlmsg_cancel(msg, hdr);
7133 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
7135 struct cfg80211_registered_device *rdev;
7136 struct cfg80211_internal_bss *scan;
7137 struct wireless_dev *wdev;
7138 int start = cb->args[2], idx = 0;
7141 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7146 spin_lock_bh(&rdev->bss_lock);
7147 cfg80211_bss_expire(rdev);
7149 cb->seq = rdev->bss_generation;
7151 list_for_each_entry(scan, &rdev->bss_list, list) {
7154 if (nl80211_send_bss(skb, cb,
7155 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7156 rdev, wdev, scan) < 0) {
7162 spin_unlock_bh(&rdev->bss_lock);
7166 nl80211_finish_wdev_dump(rdev);
7171 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
7172 int flags, struct net_device *dev,
7173 bool allow_radio_stats,
7174 struct survey_info *survey)
7177 struct nlattr *infoattr;
7179 /* skip radio stats if userspace didn't request them */
7180 if (!survey->channel && !allow_radio_stats)
7183 hdr = nl80211hdr_put(msg, portid, seq, flags,
7184 NL80211_CMD_NEW_SURVEY_RESULTS);
7188 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7189 goto nla_put_failure;
7191 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7193 goto nla_put_failure;
7195 if (survey->channel &&
7196 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
7197 survey->channel->center_freq))
7198 goto nla_put_failure;
7200 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7201 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7202 goto nla_put_failure;
7203 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7204 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7205 goto nla_put_failure;
7206 if ((survey->filled & SURVEY_INFO_TIME) &&
7207 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7208 survey->time, NL80211_SURVEY_INFO_PAD))
7209 goto nla_put_failure;
7210 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
7211 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7212 survey->time_busy, NL80211_SURVEY_INFO_PAD))
7213 goto nla_put_failure;
7214 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
7215 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7216 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
7217 goto nla_put_failure;
7218 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
7219 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7220 survey->time_rx, NL80211_SURVEY_INFO_PAD))
7221 goto nla_put_failure;
7222 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
7223 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7224 survey->time_tx, NL80211_SURVEY_INFO_PAD))
7225 goto nla_put_failure;
7226 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
7227 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7228 survey->time_scan, NL80211_SURVEY_INFO_PAD))
7229 goto nla_put_failure;
7231 nla_nest_end(msg, infoattr);
7233 genlmsg_end(msg, hdr);
7237 genlmsg_cancel(msg, hdr);
7241 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
7243 struct survey_info survey;
7244 struct cfg80211_registered_device *rdev;
7245 struct wireless_dev *wdev;
7246 int survey_idx = cb->args[2];
7250 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7254 /* prepare_wdev_dump parsed the attributes */
7255 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7257 if (!wdev->netdev) {
7262 if (!rdev->ops->dump_survey) {
7268 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
7274 /* don't send disabled channels, but do send non-channel data */
7275 if (survey.channel &&
7276 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
7281 if (nl80211_send_survey(skb,
7282 NETLINK_CB(cb->skb).portid,
7283 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7284 wdev->netdev, radio_stats, &survey) < 0)
7290 cb->args[2] = survey_idx;
7293 nl80211_finish_wdev_dump(rdev);
7297 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7299 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7300 NL80211_WPA_VERSION_2));
7303 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7306 struct net_device *dev = info->user_ptr[1];
7307 struct ieee80211_channel *chan;
7308 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7309 int err, ssid_len, ie_len = 0, sae_data_len = 0;
7310 enum nl80211_auth_type auth_type;
7311 struct key_parse key;
7312 bool local_state_change;
7314 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7317 if (!info->attrs[NL80211_ATTR_MAC])
7320 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7323 if (!info->attrs[NL80211_ATTR_SSID])
7326 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7329 err = nl80211_parse_key(info, &key);
7334 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7336 if (!key.p.key || !key.p.key_len)
7338 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7339 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7340 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7341 key.p.key_len != WLAN_KEY_LEN_WEP104))
7354 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7355 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7364 if (!rdev->ops->auth)
7367 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7368 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7371 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7372 chan = nl80211_get_valid_chan(&rdev->wiphy,
7373 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7377 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7378 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7380 if (info->attrs[NL80211_ATTR_IE]) {
7381 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7382 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7385 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7386 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
7389 if (auth_type == NL80211_AUTHTYPE_SAE &&
7390 !info->attrs[NL80211_ATTR_SAE_DATA])
7393 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7394 if (auth_type != NL80211_AUTHTYPE_SAE)
7396 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7397 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7398 /* need to include at least Auth Transaction and Status Code */
7399 if (sae_data_len < 4)
7403 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7406 * Since we no longer track auth state, ignore
7407 * requests to only change local state.
7409 if (local_state_change)
7412 wdev_lock(dev->ieee80211_ptr);
7413 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7414 ssid, ssid_len, ie, ie_len,
7415 key.p.key, key.p.key_len, key.idx,
7416 sae_data, sae_data_len);
7417 wdev_unlock(dev->ieee80211_ptr);
7421 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7422 struct genl_info *info,
7423 struct cfg80211_crypto_settings *settings,
7426 memset(settings, 0, sizeof(*settings));
7428 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7430 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7433 proto = nla_get_u16(
7434 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7435 settings->control_port_ethertype = cpu_to_be16(proto);
7436 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7439 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7440 settings->control_port_no_encrypt = true;
7442 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7444 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7448 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7449 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7450 settings->n_ciphers_pairwise = len / sizeof(u32);
7452 if (len % sizeof(u32))
7455 if (settings->n_ciphers_pairwise > cipher_limit)
7458 memcpy(settings->ciphers_pairwise, data, len);
7460 for (i = 0; i < settings->n_ciphers_pairwise; i++)
7461 if (!cfg80211_supported_cipher_suite(
7463 settings->ciphers_pairwise[i]))
7467 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7468 settings->cipher_group =
7469 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
7470 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7471 settings->cipher_group))
7475 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7476 settings->wpa_versions =
7477 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7478 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7482 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7486 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7487 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7488 settings->n_akm_suites = len / sizeof(u32);
7490 if (len % sizeof(u32))
7493 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7496 memcpy(settings->akm_suites, data, len);
7502 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7505 struct net_device *dev = info->user_ptr[1];
7506 struct ieee80211_channel *chan;
7507 struct cfg80211_assoc_request req = {};
7508 const u8 *bssid, *ssid;
7509 int err, ssid_len = 0;
7511 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7514 if (!info->attrs[NL80211_ATTR_MAC] ||
7515 !info->attrs[NL80211_ATTR_SSID] ||
7516 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7519 if (!rdev->ops->assoc)
7522 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7523 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7526 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7528 chan = nl80211_get_valid_chan(&rdev->wiphy,
7529 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7533 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7534 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7536 if (info->attrs[NL80211_ATTR_IE]) {
7537 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7538 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7541 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7542 enum nl80211_mfp mfp =
7543 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7544 if (mfp == NL80211_MFP_REQUIRED)
7546 else if (mfp != NL80211_MFP_NO)
7550 if (info->attrs[NL80211_ATTR_PREV_BSSID])
7551 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
7553 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7554 req.flags |= ASSOC_REQ_DISABLE_HT;
7556 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7557 memcpy(&req.ht_capa_mask,
7558 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7559 sizeof(req.ht_capa_mask));
7561 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7562 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7564 memcpy(&req.ht_capa,
7565 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7566 sizeof(req.ht_capa));
7569 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7570 req.flags |= ASSOC_REQ_DISABLE_VHT;
7572 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7573 memcpy(&req.vht_capa_mask,
7574 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7575 sizeof(req.vht_capa_mask));
7577 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7578 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7580 memcpy(&req.vht_capa,
7581 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7582 sizeof(req.vht_capa));
7585 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7586 if (!((rdev->wiphy.features &
7587 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7588 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7589 !wiphy_ext_feature_isset(&rdev->wiphy,
7590 NL80211_EXT_FEATURE_RRM))
7592 req.flags |= ASSOC_REQ_USE_RRM;
7595 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
7597 wdev_lock(dev->ieee80211_ptr);
7598 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7599 ssid, ssid_len, &req);
7600 wdev_unlock(dev->ieee80211_ptr);
7606 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7609 struct net_device *dev = info->user_ptr[1];
7610 const u8 *ie = NULL, *bssid;
7611 int ie_len = 0, err;
7613 bool local_state_change;
7615 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7618 if (!info->attrs[NL80211_ATTR_MAC])
7621 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7624 if (!rdev->ops->deauth)
7627 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7628 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7631 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7633 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7634 if (reason_code == 0) {
7635 /* Reason Code 0 is reserved */
7639 if (info->attrs[NL80211_ATTR_IE]) {
7640 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7641 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7644 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7646 wdev_lock(dev->ieee80211_ptr);
7647 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7648 local_state_change);
7649 wdev_unlock(dev->ieee80211_ptr);
7653 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7656 struct net_device *dev = info->user_ptr[1];
7657 const u8 *ie = NULL, *bssid;
7658 int ie_len = 0, err;
7660 bool local_state_change;
7662 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7665 if (!info->attrs[NL80211_ATTR_MAC])
7668 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7671 if (!rdev->ops->disassoc)
7674 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7675 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7678 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7680 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7681 if (reason_code == 0) {
7682 /* Reason Code 0 is reserved */
7686 if (info->attrs[NL80211_ATTR_IE]) {
7687 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7688 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7691 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7693 wdev_lock(dev->ieee80211_ptr);
7694 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7695 local_state_change);
7696 wdev_unlock(dev->ieee80211_ptr);
7701 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7702 int mcast_rate[NUM_NL80211_BANDS],
7705 struct wiphy *wiphy = &rdev->wiphy;
7709 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7710 struct ieee80211_supported_band *sband;
7712 sband = wiphy->bands[band];
7716 for (i = 0; i < sband->n_bitrates; i++) {
7717 if (sband->bitrates[i].bitrate == rateval) {
7718 mcast_rate[band] = i + 1;
7728 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7731 struct net_device *dev = info->user_ptr[1];
7732 struct cfg80211_ibss_params ibss;
7733 struct wiphy *wiphy;
7734 struct cfg80211_cached_keys *connkeys = NULL;
7737 memset(&ibss, 0, sizeof(ibss));
7739 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7742 if (!info->attrs[NL80211_ATTR_SSID] ||
7743 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7746 ibss.beacon_interval = 100;
7748 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7749 ibss.beacon_interval =
7750 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7751 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7755 if (!rdev->ops->join_ibss)
7758 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7761 wiphy = &rdev->wiphy;
7763 if (info->attrs[NL80211_ATTR_MAC]) {
7764 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7766 if (!is_valid_ether_addr(ibss.bssid))
7769 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7770 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7772 if (info->attrs[NL80211_ATTR_IE]) {
7773 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7774 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7777 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7781 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7782 NL80211_IFTYPE_ADHOC))
7785 switch (ibss.chandef.width) {
7786 case NL80211_CHAN_WIDTH_5:
7787 case NL80211_CHAN_WIDTH_10:
7788 case NL80211_CHAN_WIDTH_20_NOHT:
7790 case NL80211_CHAN_WIDTH_20:
7791 case NL80211_CHAN_WIDTH_40:
7792 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7795 case NL80211_CHAN_WIDTH_80:
7796 case NL80211_CHAN_WIDTH_80P80:
7797 case NL80211_CHAN_WIDTH_160:
7798 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7800 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7801 NL80211_EXT_FEATURE_VHT_IBSS))
7808 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7809 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7811 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7813 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7815 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7816 struct ieee80211_supported_band *sband =
7817 wiphy->bands[ibss.chandef.chan->band];
7819 err = ieee80211_get_ratemask(sband, rates, n_rates,
7825 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7826 memcpy(&ibss.ht_capa_mask,
7827 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7828 sizeof(ibss.ht_capa_mask));
7830 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7831 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7833 memcpy(&ibss.ht_capa,
7834 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7835 sizeof(ibss.ht_capa));
7838 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7839 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7840 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7843 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7846 connkeys = nl80211_parse_connkeys(rdev,
7847 info->attrs[NL80211_ATTR_KEYS],
7849 if (IS_ERR(connkeys))
7850 return PTR_ERR(connkeys);
7852 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7860 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7862 ibss.userspace_handles_dfs =
7863 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7865 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7871 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7873 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7874 struct net_device *dev = info->user_ptr[1];
7876 if (!rdev->ops->leave_ibss)
7879 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7882 return cfg80211_leave_ibss(rdev, dev, false);
7885 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7888 struct net_device *dev = info->user_ptr[1];
7889 int mcast_rate[NUM_NL80211_BANDS];
7893 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7894 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7895 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
7898 if (!rdev->ops->set_mcast_rate)
7901 memset(mcast_rate, 0, sizeof(mcast_rate));
7903 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7906 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7907 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7910 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
7915 static struct sk_buff *
7916 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7917 struct wireless_dev *wdev, int approxlen,
7918 u32 portid, u32 seq, enum nl80211_commands cmd,
7919 enum nl80211_attrs attr,
7920 const struct nl80211_vendor_cmd_info *info,
7923 struct sk_buff *skb;
7925 struct nlattr *data;
7927 skb = nlmsg_new(approxlen + 100, gfp);
7931 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7937 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7938 goto nla_put_failure;
7941 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7943 goto nla_put_failure;
7944 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7946 goto nla_put_failure;
7950 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
7951 wdev_id(wdev), NL80211_ATTR_PAD))
7952 goto nla_put_failure;
7954 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7955 wdev->netdev->ifindex))
7956 goto nla_put_failure;
7959 data = nla_nest_start(skb, attr);
7961 ((void **)skb->cb)[0] = rdev;
7962 ((void **)skb->cb)[1] = hdr;
7963 ((void **)skb->cb)[2] = data;
7972 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7973 struct wireless_dev *wdev,
7974 enum nl80211_commands cmd,
7975 enum nl80211_attrs attr,
7976 int vendor_event_idx,
7977 int approxlen, gfp_t gfp)
7979 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7980 const struct nl80211_vendor_cmd_info *info;
7983 case NL80211_CMD_TESTMODE:
7984 if (WARN_ON(vendor_event_idx != -1))
7988 case NL80211_CMD_VENDOR:
7989 if (WARN_ON(vendor_event_idx < 0 ||
7990 vendor_event_idx >= wiphy->n_vendor_events))
7992 info = &wiphy->vendor_events[vendor_event_idx];
7999 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
8000 cmd, attr, info, gfp);
8002 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8004 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8006 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8007 void *hdr = ((void **)skb->cb)[1];
8008 struct nlattr *data = ((void **)skb->cb)[2];
8009 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8011 /* clear CB data for netlink core to own from now on */
8012 memset(skb->cb, 0, sizeof(skb->cb));
8014 nla_nest_end(skb, data);
8015 genlmsg_end(skb, hdr);
8017 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8018 mcgrp = NL80211_MCGRP_VENDOR;
8020 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8023 EXPORT_SYMBOL(__cfg80211_send_event_skb);
8025 #ifdef CONFIG_NL80211_TESTMODE
8026 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8029 struct wireless_dev *wdev =
8030 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8033 if (!rdev->ops->testmode_cmd)
8037 err = PTR_ERR(wdev);
8041 } else if (wdev->wiphy != &rdev->wiphy) {
8045 if (!info->attrs[NL80211_ATTR_TESTDATA])
8048 rdev->cur_cmd_info = info;
8049 err = rdev_testmode_cmd(rdev, wdev,
8050 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8051 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
8052 rdev->cur_cmd_info = NULL;
8057 static int nl80211_testmode_dump(struct sk_buff *skb,
8058 struct netlink_callback *cb)
8060 struct cfg80211_registered_device *rdev;
8070 * 0 is a valid index, but not valid for args[0],
8071 * so we need to offset by 1.
8073 phy_idx = cb->args[0] - 1;
8075 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8076 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8081 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8082 nl80211_fam.attrbuf);
8084 err = PTR_ERR(rdev);
8087 phy_idx = rdev->wiphy_idx;
8090 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8092 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8096 data = nla_data((void *)cb->args[1]);
8097 data_len = nla_len((void *)cb->args[1]);
8100 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8106 if (!rdev->ops->testmode_dump) {
8112 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
8113 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8114 NL80211_CMD_TESTMODE);
8115 struct nlattr *tmdata;
8120 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
8121 genlmsg_cancel(skb, hdr);
8125 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8127 genlmsg_cancel(skb, hdr);
8130 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
8131 nla_nest_end(skb, tmdata);
8133 if (err == -ENOBUFS || err == -ENOENT) {
8134 genlmsg_cancel(skb, hdr);
8137 genlmsg_cancel(skb, hdr);
8141 genlmsg_end(skb, hdr);
8146 cb->args[0] = phy_idx + 1;
8153 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8156 struct net_device *dev = info->user_ptr[1];
8157 struct cfg80211_connect_params connect;
8158 struct wiphy *wiphy;
8159 struct cfg80211_cached_keys *connkeys = NULL;
8162 memset(&connect, 0, sizeof(connect));
8164 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8167 if (!info->attrs[NL80211_ATTR_SSID] ||
8168 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8171 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8173 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8174 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8175 NL80211_CMD_CONNECT))
8178 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8180 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8182 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
8183 NL80211_MAX_NR_CIPHER_SUITES);
8187 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8188 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8191 wiphy = &rdev->wiphy;
8193 connect.bg_scan_period = -1;
8194 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8195 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8196 connect.bg_scan_period =
8197 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8200 if (info->attrs[NL80211_ATTR_MAC])
8201 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8202 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8203 connect.bssid_hint =
8204 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
8205 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8206 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8208 if (info->attrs[NL80211_ATTR_IE]) {
8209 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8210 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8213 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8214 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8215 if (connect.mfp != NL80211_MFP_REQUIRED &&
8216 connect.mfp != NL80211_MFP_NO)
8219 connect.mfp = NL80211_MFP_NO;
8222 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8223 connect.prev_bssid =
8224 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8226 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8227 connect.channel = nl80211_get_valid_chan(
8228 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8229 if (!connect.channel)
8231 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
8232 connect.channel_hint = nl80211_get_valid_chan(
8233 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8234 if (!connect.channel_hint)
8238 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8239 connkeys = nl80211_parse_connkeys(rdev,
8240 info->attrs[NL80211_ATTR_KEYS], NULL);
8241 if (IS_ERR(connkeys))
8242 return PTR_ERR(connkeys);
8245 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8246 connect.flags |= ASSOC_REQ_DISABLE_HT;
8248 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8249 memcpy(&connect.ht_capa_mask,
8250 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8251 sizeof(connect.ht_capa_mask));
8253 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8254 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
8258 memcpy(&connect.ht_capa,
8259 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8260 sizeof(connect.ht_capa));
8263 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8264 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8266 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8267 memcpy(&connect.vht_capa_mask,
8268 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8269 sizeof(connect.vht_capa_mask));
8271 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8272 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
8276 memcpy(&connect.vht_capa,
8277 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8278 sizeof(connect.vht_capa));
8281 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8282 if (!((rdev->wiphy.features &
8283 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8284 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8285 !wiphy_ext_feature_isset(&rdev->wiphy,
8286 NL80211_EXT_FEATURE_RRM)) {
8290 connect.flags |= ASSOC_REQ_USE_RRM;
8293 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
8294 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
8299 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8300 /* bss selection makes no sense if bssid is set */
8301 if (connect.bssid) {
8306 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8307 wiphy, &connect.bss_select);
8314 wdev_lock(dev->ieee80211_ptr);
8315 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8316 connect.prev_bssid);
8317 wdev_unlock(dev->ieee80211_ptr);
8323 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8326 struct net_device *dev = info->user_ptr[1];
8330 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8331 reason = WLAN_REASON_DEAUTH_LEAVING;
8333 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8338 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8339 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8342 wdev_lock(dev->ieee80211_ptr);
8343 ret = cfg80211_disconnect(rdev, dev, reason, true);
8344 wdev_unlock(dev->ieee80211_ptr);
8348 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8354 if (info->attrs[NL80211_ATTR_PID]) {
8355 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8357 net = get_net_ns_by_pid(pid);
8358 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8359 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
8361 net = get_net_ns_by_fd(fd);
8367 return PTR_ERR(net);
8371 /* check if anything to do */
8372 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8373 err = cfg80211_switch_netns(rdev, net);
8379 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8382 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8383 struct cfg80211_pmksa *pmksa) = NULL;
8384 struct net_device *dev = info->user_ptr[1];
8385 struct cfg80211_pmksa pmksa;
8387 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8389 if (!info->attrs[NL80211_ATTR_MAC])
8392 if (!info->attrs[NL80211_ATTR_PMKID])
8395 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8396 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8398 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8399 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8402 switch (info->genlhdr->cmd) {
8403 case NL80211_CMD_SET_PMKSA:
8404 rdev_ops = rdev->ops->set_pmksa;
8406 case NL80211_CMD_DEL_PMKSA:
8407 rdev_ops = rdev->ops->del_pmksa;
8417 return rdev_ops(&rdev->wiphy, dev, &pmksa);
8420 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8423 struct net_device *dev = info->user_ptr[1];
8425 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8426 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8429 if (!rdev->ops->flush_pmksa)
8432 return rdev_flush_pmksa(rdev, dev);
8435 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8438 struct net_device *dev = info->user_ptr[1];
8439 u8 action_code, dialog_token;
8440 u32 peer_capability = 0;
8445 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8446 !rdev->ops->tdls_mgmt)
8449 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8450 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8451 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8452 !info->attrs[NL80211_ATTR_IE] ||
8453 !info->attrs[NL80211_ATTR_MAC])
8456 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8457 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8458 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8459 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
8460 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
8461 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8463 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
8465 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
8466 dialog_token, status_code, peer_capability,
8468 nla_data(info->attrs[NL80211_ATTR_IE]),
8469 nla_len(info->attrs[NL80211_ATTR_IE]));
8472 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8475 struct net_device *dev = info->user_ptr[1];
8476 enum nl80211_tdls_operation operation;
8479 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8480 !rdev->ops->tdls_oper)
8483 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8484 !info->attrs[NL80211_ATTR_MAC])
8487 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8488 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8490 return rdev_tdls_oper(rdev, dev, peer, operation);
8493 static int nl80211_remain_on_channel(struct sk_buff *skb,
8494 struct genl_info *info)
8496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8497 struct wireless_dev *wdev = info->user_ptr[1];
8498 struct cfg80211_chan_def chandef;
8499 struct sk_buff *msg;
8505 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8506 !info->attrs[NL80211_ATTR_DURATION])
8509 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8511 if (!rdev->ops->remain_on_channel ||
8512 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8516 * We should be on that channel for at least a minimum amount of
8517 * time (10ms) but no longer than the driver supports.
8519 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8520 duration > rdev->wiphy.max_remain_on_channel_duration)
8523 err = nl80211_parse_chandef(rdev, info, &chandef);
8527 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8531 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8532 NL80211_CMD_REMAIN_ON_CHANNEL);
8538 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8544 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8546 goto nla_put_failure;
8548 genlmsg_end(msg, hdr);
8550 return genlmsg_reply(msg, info);
8559 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8560 struct genl_info *info)
8562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8563 struct wireless_dev *wdev = info->user_ptr[1];
8566 if (!info->attrs[NL80211_ATTR_COOKIE])
8569 if (!rdev->ops->cancel_remain_on_channel)
8572 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8574 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
8577 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8578 u8 *rates, u8 rates_len)
8583 for (i = 0; i < rates_len; i++) {
8584 int rate = (rates[i] & 0x7f) * 5;
8587 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8588 struct ieee80211_rate *srate =
8589 &sband->bitrates[ridx];
8590 if (rate == srate->bitrate) {
8595 if (ridx == sband->n_bitrates)
8596 return 0; /* rate not found */
8602 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8603 u8 *rates, u8 rates_len,
8604 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8608 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8610 for (i = 0; i < rates_len; i++) {
8613 ridx = rates[i] / 8;
8614 rbit = BIT(rates[i] % 8);
8616 /* check validity */
8617 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
8620 /* check availability */
8621 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8630 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8634 switch (vht_mcs_map) {
8635 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8637 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8640 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8643 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8653 static void vht_build_mcs_mask(u16 vht_mcs_map,
8654 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8658 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8659 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8664 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8665 struct nl80211_txrate_vht *txrate,
8666 u16 mcs[NL80211_VHT_NSS_MAX])
8668 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8669 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8672 if (!sband->vht_cap.vht_supported)
8675 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8677 /* Build vht_mcs_mask from VHT capabilities */
8678 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8680 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8681 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8682 mcs[i] = txrate->mcs[i];
8690 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
8691 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8692 .len = NL80211_MAX_SUPP_RATES },
8693 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8694 .len = NL80211_MAX_SUPP_HT_RATES },
8695 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
8696 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
8699 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8700 struct genl_info *info)
8702 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
8703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8704 struct cfg80211_bitrate_mask mask;
8706 struct net_device *dev = info->user_ptr[1];
8707 struct nlattr *tx_rates;
8708 struct ieee80211_supported_band *sband;
8711 if (!rdev->ops->set_bitrate_mask)
8714 memset(&mask, 0, sizeof(mask));
8715 /* Default to all rates enabled */
8716 for (i = 0; i < NUM_NL80211_BANDS; i++) {
8717 sband = rdev->wiphy.bands[i];
8722 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
8723 memcpy(mask.control[i].ht_mcs,
8724 sband->ht_cap.mcs.rx_mask,
8725 sizeof(mask.control[i].ht_mcs));
8727 if (!sband->vht_cap.vht_supported)
8730 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8731 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
8734 /* if no rates are given set it back to the defaults */
8735 if (!info->attrs[NL80211_ATTR_TX_RATES])
8739 * The nested attribute uses enum nl80211_band as the index. This maps
8740 * directly to the enum nl80211_band values used in cfg80211.
8742 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
8743 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
8744 enum nl80211_band band = nla_type(tx_rates);
8747 if (band < 0 || band >= NUM_NL80211_BANDS)
8749 sband = rdev->wiphy.bands[band];
8752 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8753 nla_len(tx_rates), nl80211_txattr_policy);
8756 if (tb[NL80211_TXRATE_LEGACY]) {
8757 mask.control[band].legacy = rateset_to_mask(
8759 nla_data(tb[NL80211_TXRATE_LEGACY]),
8760 nla_len(tb[NL80211_TXRATE_LEGACY]));
8761 if ((mask.control[band].legacy == 0) &&
8762 nla_len(tb[NL80211_TXRATE_LEGACY]))
8765 if (tb[NL80211_TXRATE_HT]) {
8766 if (!ht_rateset_to_mask(
8768 nla_data(tb[NL80211_TXRATE_HT]),
8769 nla_len(tb[NL80211_TXRATE_HT]),
8770 mask.control[band].ht_mcs))
8773 if (tb[NL80211_TXRATE_VHT]) {
8774 if (!vht_set_mcs_mask(
8776 nla_data(tb[NL80211_TXRATE_VHT]),
8777 mask.control[band].vht_mcs))
8780 if (tb[NL80211_TXRATE_GI]) {
8781 mask.control[band].gi =
8782 nla_get_u8(tb[NL80211_TXRATE_GI]);
8783 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8787 if (mask.control[band].legacy == 0) {
8788 /* don't allow empty legacy rates if HT or VHT
8789 * are not even supported.
8791 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8792 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8795 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8796 if (mask.control[band].ht_mcs[i])
8799 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8800 if (mask.control[band].vht_mcs[i])
8803 /* legacy and mcs rates may not be both empty */
8809 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8812 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8814 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8815 struct wireless_dev *wdev = info->user_ptr[1];
8816 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8818 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8821 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8822 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8824 switch (wdev->iftype) {
8825 case NL80211_IFTYPE_STATION:
8826 case NL80211_IFTYPE_ADHOC:
8827 case NL80211_IFTYPE_P2P_CLIENT:
8828 case NL80211_IFTYPE_AP:
8829 case NL80211_IFTYPE_AP_VLAN:
8830 case NL80211_IFTYPE_MESH_POINT:
8831 case NL80211_IFTYPE_P2P_GO:
8832 case NL80211_IFTYPE_P2P_DEVICE:
8838 /* not much point in registering if we can't reply */
8839 if (!rdev->ops->mgmt_tx)
8842 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8843 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8844 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8847 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8850 struct wireless_dev *wdev = info->user_ptr[1];
8851 struct cfg80211_chan_def chandef;
8855 struct sk_buff *msg = NULL;
8856 struct cfg80211_mgmt_tx_params params = {
8857 .dont_wait_for_ack =
8858 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8861 if (!info->attrs[NL80211_ATTR_FRAME])
8864 if (!rdev->ops->mgmt_tx)
8867 switch (wdev->iftype) {
8868 case NL80211_IFTYPE_P2P_DEVICE:
8869 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8871 case NL80211_IFTYPE_STATION:
8872 case NL80211_IFTYPE_ADHOC:
8873 case NL80211_IFTYPE_P2P_CLIENT:
8874 case NL80211_IFTYPE_AP:
8875 case NL80211_IFTYPE_AP_VLAN:
8876 case NL80211_IFTYPE_MESH_POINT:
8877 case NL80211_IFTYPE_P2P_GO:
8883 if (info->attrs[NL80211_ATTR_DURATION]) {
8884 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8886 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8889 * We should wait on the channel for at least a minimum amount
8890 * of time (10ms) but no longer than the driver supports.
8892 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8893 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8897 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8899 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8902 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8904 /* get the channel if any has been specified, otherwise pass NULL to
8905 * the driver. The latter will use the current one
8907 chandef.chan = NULL;
8908 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8909 err = nl80211_parse_chandef(rdev, info, &chandef);
8914 if (!chandef.chan && params.offchan)
8917 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8918 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8920 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8921 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8924 if (len % sizeof(u16))
8927 params.n_csa_offsets = len / sizeof(u16);
8928 params.csa_offsets =
8929 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8931 /* check that all the offsets fit the frame */
8932 for (i = 0; i < params.n_csa_offsets; i++) {
8933 if (params.csa_offsets[i] >= params.len)
8938 if (!params.dont_wait_for_ack) {
8939 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8943 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8951 params.chan = chandef.chan;
8952 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8957 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8959 goto nla_put_failure;
8961 genlmsg_end(msg, hdr);
8962 return genlmsg_reply(msg, info);
8974 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8977 struct wireless_dev *wdev = info->user_ptr[1];
8980 if (!info->attrs[NL80211_ATTR_COOKIE])
8983 if (!rdev->ops->mgmt_tx_cancel_wait)
8986 switch (wdev->iftype) {
8987 case NL80211_IFTYPE_STATION:
8988 case NL80211_IFTYPE_ADHOC:
8989 case NL80211_IFTYPE_P2P_CLIENT:
8990 case NL80211_IFTYPE_AP:
8991 case NL80211_IFTYPE_AP_VLAN:
8992 case NL80211_IFTYPE_P2P_GO:
8993 case NL80211_IFTYPE_P2P_DEVICE:
8999 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9001 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
9004 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9007 struct wireless_dev *wdev;
9008 struct net_device *dev = info->user_ptr[1];
9013 if (!info->attrs[NL80211_ATTR_PS_STATE])
9016 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9018 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9021 wdev = dev->ieee80211_ptr;
9023 if (!rdev->ops->set_power_mgmt)
9026 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9028 if (state == wdev->ps)
9031 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
9037 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9040 enum nl80211_ps_state ps_state;
9041 struct wireless_dev *wdev;
9042 struct net_device *dev = info->user_ptr[1];
9043 struct sk_buff *msg;
9047 wdev = dev->ieee80211_ptr;
9049 if (!rdev->ops->set_power_mgmt)
9052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9056 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9057 NL80211_CMD_GET_POWER_SAVE);
9064 ps_state = NL80211_PS_ENABLED;
9066 ps_state = NL80211_PS_DISABLED;
9068 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9069 goto nla_put_failure;
9071 genlmsg_end(msg, hdr);
9072 return genlmsg_reply(msg, info);
9081 static const struct nla_policy
9082 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
9083 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9084 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9085 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
9086 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9087 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9088 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
9091 static int nl80211_set_cqm_txe(struct genl_info *info,
9092 u32 rate, u32 pkts, u32 intvl)
9094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9095 struct net_device *dev = info->user_ptr[1];
9096 struct wireless_dev *wdev = dev->ieee80211_ptr;
9098 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
9101 if (!rdev->ops->set_cqm_txe_config)
9104 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9105 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9108 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
9111 static int nl80211_set_cqm_rssi(struct genl_info *info,
9112 s32 threshold, u32 hysteresis)
9114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9115 struct net_device *dev = info->user_ptr[1];
9116 struct wireless_dev *wdev = dev->ieee80211_ptr;
9121 /* disabling - hysteresis should also be zero then */
9125 if (!rdev->ops->set_cqm_rssi_config)
9128 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9129 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9132 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
9135 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9137 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9141 cqm = info->attrs[NL80211_ATTR_CQM];
9145 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9146 nl80211_attr_cqm_policy);
9150 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9151 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
9152 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9153 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
9155 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9158 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9159 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9160 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9161 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9162 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9163 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9165 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9171 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9174 struct net_device *dev = info->user_ptr[1];
9175 struct ocb_setup setup = {};
9178 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9182 return cfg80211_join_ocb(rdev, dev, &setup);
9185 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9188 struct net_device *dev = info->user_ptr[1];
9190 return cfg80211_leave_ocb(rdev, dev);
9193 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9196 struct net_device *dev = info->user_ptr[1];
9197 struct mesh_config cfg;
9198 struct mesh_setup setup;
9201 /* start with default */
9202 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
9203 memcpy(&setup, &default_mesh_setup, sizeof(setup));
9205 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
9206 /* and parse parameters if given */
9207 err = nl80211_parse_mesh_config(info, &cfg, NULL);
9212 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9213 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9216 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9217 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9219 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9220 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9221 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9224 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9225 setup.beacon_interval =
9226 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9227 if (setup.beacon_interval < 10 ||
9228 setup.beacon_interval > 10000)
9232 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9234 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9235 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9239 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9240 /* parse additional setup parameters if given */
9241 err = nl80211_parse_mesh_setup(info, &setup);
9247 cfg.auto_open_plinks = false;
9249 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9250 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9254 /* cfg80211_join_mesh() will sort it out */
9255 setup.chandef.chan = NULL;
9258 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9259 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9261 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9262 struct ieee80211_supported_band *sband;
9264 if (!setup.chandef.chan)
9267 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9269 err = ieee80211_get_ratemask(sband, rates, n_rates,
9270 &setup.basic_rates);
9275 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
9278 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9281 struct net_device *dev = info->user_ptr[1];
9283 return cfg80211_leave_mesh(rdev, dev);
9287 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9288 struct cfg80211_registered_device *rdev)
9290 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
9291 struct nlattr *nl_pats, *nl_pat;
9294 if (!wowlan->n_patterns)
9297 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9301 for (i = 0; i < wowlan->n_patterns; i++) {
9302 nl_pat = nla_nest_start(msg, i + 1);
9305 pat_len = wowlan->patterns[i].pattern_len;
9306 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
9307 wowlan->patterns[i].mask) ||
9308 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9309 wowlan->patterns[i].pattern) ||
9310 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9311 wowlan->patterns[i].pkt_offset))
9313 nla_nest_end(msg, nl_pat);
9315 nla_nest_end(msg, nl_pats);
9320 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9321 struct cfg80211_wowlan_tcp *tcp)
9323 struct nlattr *nl_tcp;
9328 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9332 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9333 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
9334 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9335 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9336 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9337 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9338 tcp->payload_len, tcp->payload) ||
9339 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9340 tcp->data_interval) ||
9341 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9342 tcp->wake_len, tcp->wake_data) ||
9343 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9344 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9347 if (tcp->payload_seq.len &&
9348 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9349 sizeof(tcp->payload_seq), &tcp->payload_seq))
9352 if (tcp->payload_tok.len &&
9353 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9354 sizeof(tcp->payload_tok) + tcp->tokens_size,
9358 nla_nest_end(msg, nl_tcp);
9363 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9364 struct cfg80211_sched_scan_request *req)
9366 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
9372 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9376 if (req->n_scan_plans == 1 &&
9377 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9378 req->scan_plans[0].interval * 1000))
9381 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9384 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9388 for (i = 0; i < req->n_channels; i++)
9389 nla_put_u32(msg, i, req->channels[i]->center_freq);
9391 nla_nest_end(msg, freqs);
9393 if (req->n_match_sets) {
9394 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9395 for (i = 0; i < req->n_match_sets; i++) {
9396 match = nla_nest_start(msg, i);
9397 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9398 req->match_sets[i].ssid.ssid_len,
9399 req->match_sets[i].ssid.ssid);
9400 nla_nest_end(msg, match);
9402 nla_nest_end(msg, matches);
9405 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9409 for (i = 0; i < req->n_scan_plans; i++) {
9410 scan_plan = nla_nest_start(msg, i + 1);
9412 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9413 req->scan_plans[i].interval) ||
9414 (req->scan_plans[i].iterations &&
9415 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9416 req->scan_plans[i].iterations)))
9418 nla_nest_end(msg, scan_plan);
9420 nla_nest_end(msg, scan_plans);
9422 nla_nest_end(msg, nd);
9427 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9430 struct sk_buff *msg;
9432 u32 size = NLMSG_DEFAULT_SIZE;
9434 if (!rdev->wiphy.wowlan)
9437 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
9438 /* adjust size to have room for all the data */
9439 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9440 rdev->wiphy.wowlan_config->tcp->payload_len +
9441 rdev->wiphy.wowlan_config->tcp->wake_len +
9442 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
9445 msg = nlmsg_new(size, GFP_KERNEL);
9449 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9450 NL80211_CMD_GET_WOWLAN);
9452 goto nla_put_failure;
9454 if (rdev->wiphy.wowlan_config) {
9455 struct nlattr *nl_wowlan;
9457 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9459 goto nla_put_failure;
9461 if ((rdev->wiphy.wowlan_config->any &&
9462 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9463 (rdev->wiphy.wowlan_config->disconnect &&
9464 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9465 (rdev->wiphy.wowlan_config->magic_pkt &&
9466 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9467 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9468 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9469 (rdev->wiphy.wowlan_config->eap_identity_req &&
9470 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9471 (rdev->wiphy.wowlan_config->four_way_handshake &&
9472 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9473 (rdev->wiphy.wowlan_config->rfkill_release &&
9474 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9475 goto nla_put_failure;
9477 if (nl80211_send_wowlan_patterns(msg, rdev))
9478 goto nla_put_failure;
9480 if (nl80211_send_wowlan_tcp(msg,
9481 rdev->wiphy.wowlan_config->tcp))
9482 goto nla_put_failure;
9484 if (nl80211_send_wowlan_nd(
9486 rdev->wiphy.wowlan_config->nd_config))
9487 goto nla_put_failure;
9489 nla_nest_end(msg, nl_wowlan);
9492 genlmsg_end(msg, hdr);
9493 return genlmsg_reply(msg, info);
9500 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9501 struct nlattr *attr,
9502 struct cfg80211_wowlan *trig)
9504 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9505 struct cfg80211_wowlan_tcp *cfg;
9506 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9507 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9509 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9512 if (!rdev->wiphy.wowlan->tcp)
9515 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9516 nla_data(attr), nla_len(attr),
9517 nl80211_wowlan_tcp_policy);
9521 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9522 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9523 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9524 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9525 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9526 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9527 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9528 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9531 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
9532 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
9535 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
9536 rdev->wiphy.wowlan->tcp->data_interval_max ||
9537 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
9540 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
9541 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
9544 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9545 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9548 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9549 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9551 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9552 tokens_size = tokln - sizeof(*tok);
9554 if (!tok->len || tokens_size % tok->len)
9556 if (!rdev->wiphy.wowlan->tcp->tok)
9558 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9560 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9562 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9564 if (tok->offset + tok->len > data_size)
9568 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9569 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9570 if (!rdev->wiphy.wowlan->tcp->seq)
9572 if (seq->len == 0 || seq->len > 4)
9574 if (seq->len + seq->offset > data_size)
9578 size = sizeof(*cfg);
9580 size += wake_size + wake_mask_size;
9581 size += tokens_size;
9583 cfg = kzalloc(size, GFP_KERNEL);
9586 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9587 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9588 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9590 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9591 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9595 /* allocate a socket and port for it and use it */
9596 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9597 IPPROTO_TCP, &cfg->sock, 1);
9602 if (inet_csk_get_port(cfg->sock->sk, port)) {
9603 sock_release(cfg->sock);
9607 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9613 cfg->src_port = port;
9616 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9617 cfg->payload_len = data_size;
9618 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9619 memcpy((void *)cfg->payload,
9620 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9623 cfg->payload_seq = *seq;
9624 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9625 cfg->wake_len = wake_size;
9626 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9627 memcpy((void *)cfg->wake_data,
9628 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9630 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9631 data_size + wake_size;
9632 memcpy((void *)cfg->wake_mask,
9633 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9636 cfg->tokens_size = tokens_size;
9637 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9645 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9646 const struct wiphy_wowlan_support *wowlan,
9647 struct nlattr *attr,
9648 struct cfg80211_wowlan *trig)
9653 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9657 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9662 err = nla_parse(tb, NL80211_ATTR_MAX,
9663 nla_data(attr), nla_len(attr),
9668 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9669 err = PTR_ERR_OR_ZERO(trig->nd_config);
9671 trig->nd_config = NULL;
9678 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9680 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9681 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9682 struct cfg80211_wowlan new_triggers = {};
9683 struct cfg80211_wowlan *ntrig;
9684 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9686 bool prev_enabled = rdev->wiphy.wowlan_config;
9687 bool regular = false;
9692 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9693 cfg80211_rdev_free_wowlan(rdev);
9694 rdev->wiphy.wowlan_config = NULL;
9698 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9699 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9700 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9701 nl80211_wowlan_policy);
9705 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9706 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9708 new_triggers.any = true;
9711 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9712 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9714 new_triggers.disconnect = true;
9718 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9719 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9721 new_triggers.magic_pkt = true;
9725 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9728 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9729 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9731 new_triggers.gtk_rekey_failure = true;
9735 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9736 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9738 new_triggers.eap_identity_req = true;
9742 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9743 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9745 new_triggers.four_way_handshake = true;
9749 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9750 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9752 new_triggers.rfkill_release = true;
9756 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9759 int rem, pat_len, mask_len, pkt_offset;
9760 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9764 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9767 if (n_patterns > wowlan->n_patterns)
9770 new_triggers.patterns = kcalloc(n_patterns,
9771 sizeof(new_triggers.patterns[0]),
9773 if (!new_triggers.patterns)
9776 new_triggers.n_patterns = n_patterns;
9779 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9783 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9784 nla_len(pat), NULL);
9786 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9787 !pat_tb[NL80211_PKTPAT_PATTERN])
9789 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9790 mask_len = DIV_ROUND_UP(pat_len, 8);
9791 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9793 if (pat_len > wowlan->pattern_max_len ||
9794 pat_len < wowlan->pattern_min_len)
9797 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9800 pkt_offset = nla_get_u32(
9801 pat_tb[NL80211_PKTPAT_OFFSET]);
9802 if (pkt_offset > wowlan->max_pkt_offset)
9804 new_triggers.patterns[i].pkt_offset = pkt_offset;
9806 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9811 new_triggers.patterns[i].mask = mask_pat;
9812 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9814 mask_pat += mask_len;
9815 new_triggers.patterns[i].pattern = mask_pat;
9816 new_triggers.patterns[i].pattern_len = pat_len;
9818 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9824 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9826 err = nl80211_parse_wowlan_tcp(
9827 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9833 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9835 err = nl80211_parse_wowlan_nd(
9836 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9842 /* The 'any' trigger means the device continues operating more or less
9843 * as in its normal operation mode and wakes up the host on most of the
9844 * normal interrupts (like packet RX, ...)
9845 * It therefore makes little sense to combine with the more constrained
9846 * wakeup trigger modes.
9848 if (new_triggers.any && regular) {
9853 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9858 cfg80211_rdev_free_wowlan(rdev);
9859 rdev->wiphy.wowlan_config = ntrig;
9862 if (rdev->ops->set_wakeup &&
9863 prev_enabled != !!rdev->wiphy.wowlan_config)
9864 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9868 for (i = 0; i < new_triggers.n_patterns; i++)
9869 kfree(new_triggers.patterns[i].mask);
9870 kfree(new_triggers.patterns);
9871 if (new_triggers.tcp && new_triggers.tcp->sock)
9872 sock_release(new_triggers.tcp->sock);
9873 kfree(new_triggers.tcp);
9874 kfree(new_triggers.nd_config);
9879 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9880 struct cfg80211_registered_device *rdev)
9882 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9884 struct cfg80211_coalesce_rules *rule;
9886 if (!rdev->coalesce->n_rules)
9889 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9893 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9894 nl_rule = nla_nest_start(msg, i + 1);
9898 rule = &rdev->coalesce->rules[i];
9899 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9903 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9907 nl_pats = nla_nest_start(msg,
9908 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9912 for (j = 0; j < rule->n_patterns; j++) {
9913 nl_pat = nla_nest_start(msg, j + 1);
9916 pat_len = rule->patterns[j].pattern_len;
9917 if (nla_put(msg, NL80211_PKTPAT_MASK,
9918 DIV_ROUND_UP(pat_len, 8),
9919 rule->patterns[j].mask) ||
9920 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9921 rule->patterns[j].pattern) ||
9922 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9923 rule->patterns[j].pkt_offset))
9925 nla_nest_end(msg, nl_pat);
9927 nla_nest_end(msg, nl_pats);
9928 nla_nest_end(msg, nl_rule);
9930 nla_nest_end(msg, nl_rules);
9935 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9938 struct sk_buff *msg;
9941 if (!rdev->wiphy.coalesce)
9944 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9948 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9949 NL80211_CMD_GET_COALESCE);
9951 goto nla_put_failure;
9953 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9954 goto nla_put_failure;
9956 genlmsg_end(msg, hdr);
9957 return genlmsg_reply(msg, info);
9964 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9966 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9968 struct cfg80211_coalesce_rules *rule;
9973 for (i = 0; i < coalesce->n_rules; i++) {
9974 rule = &coalesce->rules[i];
9975 for (j = 0; j < rule->n_patterns; j++)
9976 kfree(rule->patterns[j].mask);
9977 kfree(rule->patterns);
9979 kfree(coalesce->rules);
9981 rdev->coalesce = NULL;
9984 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9985 struct nlattr *rule,
9986 struct cfg80211_coalesce_rules *new_rule)
9989 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9990 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9991 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9992 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9994 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9995 nla_len(rule), nl80211_coalesce_policy);
9999 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10001 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10002 if (new_rule->delay > coalesce->max_delay)
10005 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10006 new_rule->condition =
10007 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10008 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10009 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10012 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10015 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10018 if (n_patterns > coalesce->n_patterns)
10021 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10023 if (!new_rule->patterns)
10026 new_rule->n_patterns = n_patterns;
10029 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10033 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10034 nla_len(pat), NULL);
10035 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10036 !pat_tb[NL80211_PKTPAT_PATTERN])
10038 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10039 mask_len = DIV_ROUND_UP(pat_len, 8);
10040 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10042 if (pat_len > coalesce->pattern_max_len ||
10043 pat_len < coalesce->pattern_min_len)
10046 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10049 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10050 if (pkt_offset > coalesce->max_pkt_offset)
10052 new_rule->patterns[i].pkt_offset = pkt_offset;
10054 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10058 new_rule->patterns[i].mask = mask_pat;
10059 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10062 mask_pat += mask_len;
10063 new_rule->patterns[i].pattern = mask_pat;
10064 new_rule->patterns[i].pattern_len = pat_len;
10065 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10073 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10076 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10077 struct cfg80211_coalesce new_coalesce = {};
10078 struct cfg80211_coalesce *n_coalesce;
10079 int err, rem_rule, n_rules = 0, i, j;
10080 struct nlattr *rule;
10081 struct cfg80211_coalesce_rules *tmp_rule;
10083 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10084 return -EOPNOTSUPP;
10086 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10087 cfg80211_rdev_free_coalesce(rdev);
10088 rdev_set_coalesce(rdev, NULL);
10092 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10095 if (n_rules > coalesce->n_rules)
10098 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10100 if (!new_coalesce.rules)
10103 new_coalesce.n_rules = n_rules;
10106 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10108 err = nl80211_parse_coalesce_rule(rdev, rule,
10109 &new_coalesce.rules[i]);
10116 err = rdev_set_coalesce(rdev, &new_coalesce);
10120 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10125 cfg80211_rdev_free_coalesce(rdev);
10126 rdev->coalesce = n_coalesce;
10130 for (i = 0; i < new_coalesce.n_rules; i++) {
10131 tmp_rule = &new_coalesce.rules[i];
10132 for (j = 0; j < tmp_rule->n_patterns; j++)
10133 kfree(tmp_rule->patterns[j].mask);
10134 kfree(tmp_rule->patterns);
10136 kfree(new_coalesce.rules);
10141 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10144 struct net_device *dev = info->user_ptr[1];
10145 struct wireless_dev *wdev = dev->ieee80211_ptr;
10146 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10147 struct cfg80211_gtk_rekey_data rekey_data;
10150 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10153 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10154 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10155 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10156 nl80211_rekey_policy);
10160 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10162 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10164 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10167 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10168 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10169 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
10172 if (!wdev->current_bss) {
10177 if (!rdev->ops->set_rekey_data) {
10182 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
10188 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10189 struct genl_info *info)
10191 struct net_device *dev = info->user_ptr[1];
10192 struct wireless_dev *wdev = dev->ieee80211_ptr;
10194 if (wdev->iftype != NL80211_IFTYPE_AP &&
10195 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10198 if (wdev->ap_unexpected_nlportid)
10201 wdev->ap_unexpected_nlportid = info->snd_portid;
10205 static int nl80211_probe_client(struct sk_buff *skb,
10206 struct genl_info *info)
10208 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10209 struct net_device *dev = info->user_ptr[1];
10210 struct wireless_dev *wdev = dev->ieee80211_ptr;
10211 struct sk_buff *msg;
10217 if (wdev->iftype != NL80211_IFTYPE_AP &&
10218 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10219 return -EOPNOTSUPP;
10221 if (!info->attrs[NL80211_ATTR_MAC])
10224 if (!rdev->ops->probe_client)
10225 return -EOPNOTSUPP;
10227 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10231 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10232 NL80211_CMD_PROBE_CLIENT);
10238 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10240 err = rdev_probe_client(rdev, dev, addr, &cookie);
10244 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10246 goto nla_put_failure;
10248 genlmsg_end(msg, hdr);
10250 return genlmsg_reply(msg, info);
10259 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10262 struct cfg80211_beacon_registration *reg, *nreg;
10265 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10266 return -EOPNOTSUPP;
10268 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10272 /* First, check if already registered. */
10273 spin_lock_bh(&rdev->beacon_registrations_lock);
10274 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10275 if (reg->nlportid == info->snd_portid) {
10280 /* Add it to the list */
10281 nreg->nlportid = info->snd_portid;
10282 list_add(&nreg->list, &rdev->beacon_registrations);
10284 spin_unlock_bh(&rdev->beacon_registrations_lock);
10288 spin_unlock_bh(&rdev->beacon_registrations_lock);
10293 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10296 struct wireless_dev *wdev = info->user_ptr[1];
10299 if (!rdev->ops->start_p2p_device)
10300 return -EOPNOTSUPP;
10302 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10303 return -EOPNOTSUPP;
10305 if (wdev->p2p_started)
10308 if (rfkill_blocked(rdev->rfkill))
10311 err = rdev_start_p2p_device(rdev, wdev);
10315 wdev->p2p_started = true;
10321 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10324 struct wireless_dev *wdev = info->user_ptr[1];
10326 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10327 return -EOPNOTSUPP;
10329 if (!rdev->ops->stop_p2p_device)
10330 return -EOPNOTSUPP;
10332 cfg80211_stop_p2p_device(rdev, wdev);
10337 static int nl80211_get_protocol_features(struct sk_buff *skb,
10338 struct genl_info *info)
10341 struct sk_buff *msg;
10343 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10347 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10348 NL80211_CMD_GET_PROTOCOL_FEATURES);
10350 goto nla_put_failure;
10352 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10353 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10354 goto nla_put_failure;
10356 genlmsg_end(msg, hdr);
10357 return genlmsg_reply(msg, info);
10364 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10366 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10367 struct cfg80211_update_ft_ies_params ft_params;
10368 struct net_device *dev = info->user_ptr[1];
10370 if (!rdev->ops->update_ft_ies)
10371 return -EOPNOTSUPP;
10373 if (!info->attrs[NL80211_ATTR_MDID] ||
10374 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10377 memset(&ft_params, 0, sizeof(ft_params));
10378 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10379 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10380 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10382 return rdev_update_ft_ies(rdev, dev, &ft_params);
10385 static int nl80211_crit_protocol_start(struct sk_buff *skb,
10386 struct genl_info *info)
10388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10389 struct wireless_dev *wdev = info->user_ptr[1];
10390 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10394 if (!rdev->ops->crit_proto_start)
10395 return -EOPNOTSUPP;
10397 if (WARN_ON(!rdev->ops->crit_proto_stop))
10400 if (rdev->crit_proto_nlportid)
10403 /* determine protocol if provided */
10404 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10405 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10407 if (proto >= NUM_NL80211_CRIT_PROTO)
10410 /* timeout must be provided */
10411 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10415 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10417 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10420 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10422 rdev->crit_proto_nlportid = info->snd_portid;
10427 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10428 struct genl_info *info)
10430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10431 struct wireless_dev *wdev = info->user_ptr[1];
10433 if (!rdev->ops->crit_proto_stop)
10434 return -EOPNOTSUPP;
10436 if (rdev->crit_proto_nlportid) {
10437 rdev->crit_proto_nlportid = 0;
10438 rdev_crit_proto_stop(rdev, wdev);
10443 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10446 struct wireless_dev *wdev =
10447 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10451 if (!rdev->wiphy.vendor_commands)
10452 return -EOPNOTSUPP;
10454 if (IS_ERR(wdev)) {
10455 err = PTR_ERR(wdev);
10456 if (err != -EINVAL)
10459 } else if (wdev->wiphy != &rdev->wiphy) {
10463 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10464 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10467 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10468 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10469 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10470 const struct wiphy_vendor_command *vcmd;
10474 vcmd = &rdev->wiphy.vendor_commands[i];
10476 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10479 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10480 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10483 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10487 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10488 if (wdev->netdev &&
10489 !netif_running(wdev->netdev))
10491 if (!wdev->netdev && !wdev->p2p_started)
10496 return -EOPNOTSUPP;
10501 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10502 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10503 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10506 rdev->cur_cmd_info = info;
10507 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10509 rdev->cur_cmd_info = NULL;
10513 return -EOPNOTSUPP;
10516 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10517 struct netlink_callback *cb,
10518 struct cfg80211_registered_device **rdev,
10519 struct wireless_dev **wdev)
10526 unsigned int data_len = 0;
10531 /* subtract the 1 again here */
10532 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10533 struct wireless_dev *tmp;
10539 *rdev = wiphy_to_rdev(wiphy);
10543 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
10544 if (tmp->identifier == cb->args[1] - 1) {
10551 /* keep rtnl locked in successful case */
10555 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10556 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10561 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10562 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10567 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10568 nl80211_fam.attrbuf);
10572 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10573 nl80211_fam.attrbuf);
10574 if (IS_ERR(*rdev)) {
10575 err = PTR_ERR(*rdev);
10579 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10580 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10582 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10583 const struct wiphy_vendor_command *vcmd;
10585 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10587 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10590 if (!vcmd->dumpit) {
10599 if (vcmd_idx < 0) {
10604 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10605 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10606 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10609 /* 0 is the first index - add 1 to parse only once */
10610 cb->args[0] = (*rdev)->wiphy_idx + 1;
10611 /* add 1 to know if it was NULL */
10612 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10613 cb->args[2] = vcmd_idx;
10614 cb->args[3] = (unsigned long)data;
10615 cb->args[4] = data_len;
10617 /* keep rtnl locked in successful case */
10624 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10625 struct netlink_callback *cb)
10627 struct cfg80211_registered_device *rdev;
10628 struct wireless_dev *wdev;
10629 unsigned int vcmd_idx;
10630 const struct wiphy_vendor_command *vcmd;
10634 struct nlattr *vendor_data;
10636 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10640 vcmd_idx = cb->args[2];
10641 data = (void *)cb->args[3];
10642 data_len = cb->args[4];
10643 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10645 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10646 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10649 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10653 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10654 if (wdev->netdev &&
10655 !netif_running(wdev->netdev))
10657 if (!wdev->netdev && !wdev->p2p_started)
10663 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10664 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10665 NL80211_CMD_VENDOR);
10669 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10670 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10672 NL80211_ATTR_PAD))) {
10673 genlmsg_cancel(skb, hdr);
10677 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10678 if (!vendor_data) {
10679 genlmsg_cancel(skb, hdr);
10683 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10684 (unsigned long *)&cb->args[5]);
10685 nla_nest_end(skb, vendor_data);
10687 if (err == -ENOBUFS || err == -ENOENT) {
10688 genlmsg_cancel(skb, hdr);
10691 genlmsg_cancel(skb, hdr);
10695 genlmsg_end(skb, hdr);
10704 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10705 enum nl80211_commands cmd,
10706 enum nl80211_attrs attr,
10709 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10711 if (WARN_ON(!rdev->cur_cmd_info))
10714 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
10715 rdev->cur_cmd_info->snd_portid,
10716 rdev->cur_cmd_info->snd_seq,
10717 cmd, attr, NULL, GFP_KERNEL);
10719 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10721 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10723 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10724 void *hdr = ((void **)skb->cb)[1];
10725 struct nlattr *data = ((void **)skb->cb)[2];
10727 /* clear CB data for netlink core to own from now on */
10728 memset(skb->cb, 0, sizeof(skb->cb));
10730 if (WARN_ON(!rdev->cur_cmd_info)) {
10735 nla_nest_end(skb, data);
10736 genlmsg_end(skb, hdr);
10737 return genlmsg_reply(skb, rdev->cur_cmd_info);
10739 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10741 static int nl80211_set_qos_map(struct sk_buff *skb,
10742 struct genl_info *info)
10744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10745 struct cfg80211_qos_map *qos_map = NULL;
10746 struct net_device *dev = info->user_ptr[1];
10747 u8 *pos, len, num_des, des_len, des;
10750 if (!rdev->ops->set_qos_map)
10751 return -EOPNOTSUPP;
10753 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10754 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10755 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10757 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10758 len > IEEE80211_QOS_MAP_LEN_MAX)
10761 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10765 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10767 des_len = num_des *
10768 sizeof(struct cfg80211_dscp_exception);
10769 memcpy(qos_map->dscp_exception, pos, des_len);
10770 qos_map->num_des = num_des;
10771 for (des = 0; des < num_des; des++) {
10772 if (qos_map->dscp_exception[des].up > 7) {
10779 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10782 wdev_lock(dev->ieee80211_ptr);
10783 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10785 ret = rdev_set_qos_map(rdev, dev, qos_map);
10786 wdev_unlock(dev->ieee80211_ptr);
10792 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10795 struct net_device *dev = info->user_ptr[1];
10796 struct wireless_dev *wdev = dev->ieee80211_ptr;
10799 u16 admitted_time = 0;
10802 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
10803 return -EOPNOTSUPP;
10805 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10806 !info->attrs[NL80211_ATTR_USER_PRIO])
10809 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10810 if (tsid >= IEEE80211_NUM_TIDS)
10813 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10814 if (up >= IEEE80211_NUM_UPS)
10817 /* WMM uses TIDs 0-7 even for TSPEC */
10818 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
10819 /* TODO: handle 802.11 TSPEC/admission control
10820 * need more attributes for that (e.g. BA session requirement);
10821 * change the WMM adminssion test above to allow both then
10826 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10828 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10830 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10831 if (!admitted_time)
10836 switch (wdev->iftype) {
10837 case NL80211_IFTYPE_STATION:
10838 case NL80211_IFTYPE_P2P_CLIENT:
10839 if (wdev->current_bss)
10848 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10855 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10858 struct net_device *dev = info->user_ptr[1];
10859 struct wireless_dev *wdev = dev->ieee80211_ptr;
10864 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10867 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10868 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10871 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10877 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10878 struct genl_info *info)
10880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10881 struct net_device *dev = info->user_ptr[1];
10882 struct wireless_dev *wdev = dev->ieee80211_ptr;
10883 struct cfg80211_chan_def chandef = {};
10888 if (!rdev->ops->tdls_channel_switch ||
10889 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10890 return -EOPNOTSUPP;
10892 switch (dev->ieee80211_ptr->iftype) {
10893 case NL80211_IFTYPE_STATION:
10894 case NL80211_IFTYPE_P2P_CLIENT:
10897 return -EOPNOTSUPP;
10900 if (!info->attrs[NL80211_ATTR_MAC] ||
10901 !info->attrs[NL80211_ATTR_OPER_CLASS])
10904 err = nl80211_parse_chandef(rdev, info, &chandef);
10909 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10910 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10911 * specification is not defined for them.
10913 if (chandef.chan->band == NL80211_BAND_2GHZ &&
10914 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10915 chandef.width != NL80211_CHAN_WIDTH_20)
10918 /* we will be active on the TDLS link */
10919 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10923 /* don't allow switching to DFS channels */
10924 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10927 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10928 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10931 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10937 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10938 struct genl_info *info)
10940 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10941 struct net_device *dev = info->user_ptr[1];
10942 struct wireless_dev *wdev = dev->ieee80211_ptr;
10945 if (!rdev->ops->tdls_channel_switch ||
10946 !rdev->ops->tdls_cancel_channel_switch ||
10947 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10948 return -EOPNOTSUPP;
10950 switch (dev->ieee80211_ptr->iftype) {
10951 case NL80211_IFTYPE_STATION:
10952 case NL80211_IFTYPE_P2P_CLIENT:
10955 return -EOPNOTSUPP;
10958 if (!info->attrs[NL80211_ATTR_MAC])
10961 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10964 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10970 #define NL80211_FLAG_NEED_WIPHY 0x01
10971 #define NL80211_FLAG_NEED_NETDEV 0x02
10972 #define NL80211_FLAG_NEED_RTNL 0x04
10973 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10974 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10975 NL80211_FLAG_CHECK_NETDEV_UP)
10976 #define NL80211_FLAG_NEED_WDEV 0x10
10977 /* If a netdev is associated, it must be UP, P2P must be started */
10978 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10979 NL80211_FLAG_CHECK_NETDEV_UP)
10980 #define NL80211_FLAG_CLEAR_SKB 0x20
10982 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
10983 struct genl_info *info)
10985 struct cfg80211_registered_device *rdev;
10986 struct wireless_dev *wdev;
10987 struct net_device *dev;
10988 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10993 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
10994 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
10995 if (IS_ERR(rdev)) {
10998 return PTR_ERR(rdev);
11000 info->user_ptr[0] = rdev;
11001 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11002 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11005 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11007 if (IS_ERR(wdev)) {
11010 return PTR_ERR(wdev);
11013 dev = wdev->netdev;
11014 rdev = wiphy_to_rdev(wdev->wiphy);
11016 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11023 info->user_ptr[1] = dev;
11025 info->user_ptr[1] = wdev;
11029 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11030 !netif_running(dev)) {
11037 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
11038 if (!wdev->p2p_started) {
11045 info->user_ptr[0] = rdev;
11051 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
11052 struct genl_info *info)
11054 if (info->user_ptr[1]) {
11055 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11056 struct wireless_dev *wdev = info->user_ptr[1];
11059 dev_put(wdev->netdev);
11061 dev_put(info->user_ptr[1]);
11065 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11068 /* If needed, clear the netlink message payload from the SKB
11069 * as it might contain key data that shouldn't stick around on
11070 * the heap after the SKB is freed. The netlink message header
11071 * is still needed for further processing, so leave it intact.
11073 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11074 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11076 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11080 static const struct genl_ops nl80211_ops[] = {
11082 .cmd = NL80211_CMD_GET_WIPHY,
11083 .doit = nl80211_get_wiphy,
11084 .dumpit = nl80211_dump_wiphy,
11085 .done = nl80211_dump_wiphy_done,
11086 .policy = nl80211_policy,
11087 /* can be retrieved by unprivileged users */
11088 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11089 NL80211_FLAG_NEED_RTNL,
11092 .cmd = NL80211_CMD_SET_WIPHY,
11093 .doit = nl80211_set_wiphy,
11094 .policy = nl80211_policy,
11095 .flags = GENL_UNS_ADMIN_PERM,
11096 .internal_flags = NL80211_FLAG_NEED_RTNL,
11099 .cmd = NL80211_CMD_GET_INTERFACE,
11100 .doit = nl80211_get_interface,
11101 .dumpit = nl80211_dump_interface,
11102 .policy = nl80211_policy,
11103 /* can be retrieved by unprivileged users */
11104 .internal_flags = NL80211_FLAG_NEED_WDEV |
11105 NL80211_FLAG_NEED_RTNL,
11108 .cmd = NL80211_CMD_SET_INTERFACE,
11109 .doit = nl80211_set_interface,
11110 .policy = nl80211_policy,
11111 .flags = GENL_UNS_ADMIN_PERM,
11112 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11113 NL80211_FLAG_NEED_RTNL,
11116 .cmd = NL80211_CMD_NEW_INTERFACE,
11117 .doit = nl80211_new_interface,
11118 .policy = nl80211_policy,
11119 .flags = GENL_UNS_ADMIN_PERM,
11120 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11121 NL80211_FLAG_NEED_RTNL,
11124 .cmd = NL80211_CMD_DEL_INTERFACE,
11125 .doit = nl80211_del_interface,
11126 .policy = nl80211_policy,
11127 .flags = GENL_UNS_ADMIN_PERM,
11128 .internal_flags = NL80211_FLAG_NEED_WDEV |
11129 NL80211_FLAG_NEED_RTNL,
11132 .cmd = NL80211_CMD_GET_KEY,
11133 .doit = nl80211_get_key,
11134 .policy = nl80211_policy,
11135 .flags = GENL_UNS_ADMIN_PERM,
11136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11137 NL80211_FLAG_NEED_RTNL,
11140 .cmd = NL80211_CMD_SET_KEY,
11141 .doit = nl80211_set_key,
11142 .policy = nl80211_policy,
11143 .flags = GENL_UNS_ADMIN_PERM,
11144 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11145 NL80211_FLAG_NEED_RTNL |
11146 NL80211_FLAG_CLEAR_SKB,
11149 .cmd = NL80211_CMD_NEW_KEY,
11150 .doit = nl80211_new_key,
11151 .policy = nl80211_policy,
11152 .flags = GENL_UNS_ADMIN_PERM,
11153 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11154 NL80211_FLAG_NEED_RTNL |
11155 NL80211_FLAG_CLEAR_SKB,
11158 .cmd = NL80211_CMD_DEL_KEY,
11159 .doit = nl80211_del_key,
11160 .policy = nl80211_policy,
11161 .flags = GENL_UNS_ADMIN_PERM,
11162 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11163 NL80211_FLAG_NEED_RTNL,
11166 .cmd = NL80211_CMD_SET_BEACON,
11167 .policy = nl80211_policy,
11168 .flags = GENL_UNS_ADMIN_PERM,
11169 .doit = nl80211_set_beacon,
11170 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11171 NL80211_FLAG_NEED_RTNL,
11174 .cmd = NL80211_CMD_START_AP,
11175 .policy = nl80211_policy,
11176 .flags = GENL_UNS_ADMIN_PERM,
11177 .doit = nl80211_start_ap,
11178 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11179 NL80211_FLAG_NEED_RTNL,
11182 .cmd = NL80211_CMD_STOP_AP,
11183 .policy = nl80211_policy,
11184 .flags = GENL_UNS_ADMIN_PERM,
11185 .doit = nl80211_stop_ap,
11186 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11187 NL80211_FLAG_NEED_RTNL,
11190 .cmd = NL80211_CMD_GET_STATION,
11191 .doit = nl80211_get_station,
11192 .dumpit = nl80211_dump_station,
11193 .policy = nl80211_policy,
11194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11195 NL80211_FLAG_NEED_RTNL,
11198 .cmd = NL80211_CMD_SET_STATION,
11199 .doit = nl80211_set_station,
11200 .policy = nl80211_policy,
11201 .flags = GENL_UNS_ADMIN_PERM,
11202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11203 NL80211_FLAG_NEED_RTNL,
11206 .cmd = NL80211_CMD_NEW_STATION,
11207 .doit = nl80211_new_station,
11208 .policy = nl80211_policy,
11209 .flags = GENL_UNS_ADMIN_PERM,
11210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11211 NL80211_FLAG_NEED_RTNL,
11214 .cmd = NL80211_CMD_DEL_STATION,
11215 .doit = nl80211_del_station,
11216 .policy = nl80211_policy,
11217 .flags = GENL_UNS_ADMIN_PERM,
11218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11219 NL80211_FLAG_NEED_RTNL,
11222 .cmd = NL80211_CMD_GET_MPATH,
11223 .doit = nl80211_get_mpath,
11224 .dumpit = nl80211_dump_mpath,
11225 .policy = nl80211_policy,
11226 .flags = GENL_UNS_ADMIN_PERM,
11227 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11228 NL80211_FLAG_NEED_RTNL,
11231 .cmd = NL80211_CMD_GET_MPP,
11232 .doit = nl80211_get_mpp,
11233 .dumpit = nl80211_dump_mpp,
11234 .policy = nl80211_policy,
11235 .flags = GENL_UNS_ADMIN_PERM,
11236 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11237 NL80211_FLAG_NEED_RTNL,
11240 .cmd = NL80211_CMD_SET_MPATH,
11241 .doit = nl80211_set_mpath,
11242 .policy = nl80211_policy,
11243 .flags = GENL_UNS_ADMIN_PERM,
11244 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11245 NL80211_FLAG_NEED_RTNL,
11248 .cmd = NL80211_CMD_NEW_MPATH,
11249 .doit = nl80211_new_mpath,
11250 .policy = nl80211_policy,
11251 .flags = GENL_UNS_ADMIN_PERM,
11252 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11253 NL80211_FLAG_NEED_RTNL,
11256 .cmd = NL80211_CMD_DEL_MPATH,
11257 .doit = nl80211_del_mpath,
11258 .policy = nl80211_policy,
11259 .flags = GENL_UNS_ADMIN_PERM,
11260 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11261 NL80211_FLAG_NEED_RTNL,
11264 .cmd = NL80211_CMD_SET_BSS,
11265 .doit = nl80211_set_bss,
11266 .policy = nl80211_policy,
11267 .flags = GENL_UNS_ADMIN_PERM,
11268 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11269 NL80211_FLAG_NEED_RTNL,
11272 .cmd = NL80211_CMD_GET_REG,
11273 .doit = nl80211_get_reg_do,
11274 .dumpit = nl80211_get_reg_dump,
11275 .policy = nl80211_policy,
11276 .internal_flags = NL80211_FLAG_NEED_RTNL,
11277 /* can be retrieved by unprivileged users */
11279 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
11281 .cmd = NL80211_CMD_SET_REG,
11282 .doit = nl80211_set_reg,
11283 .policy = nl80211_policy,
11284 .flags = GENL_ADMIN_PERM,
11285 .internal_flags = NL80211_FLAG_NEED_RTNL,
11289 .cmd = NL80211_CMD_REQ_SET_REG,
11290 .doit = nl80211_req_set_reg,
11291 .policy = nl80211_policy,
11292 .flags = GENL_ADMIN_PERM,
11295 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11296 .doit = nl80211_get_mesh_config,
11297 .policy = nl80211_policy,
11298 /* can be retrieved by unprivileged users */
11299 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11300 NL80211_FLAG_NEED_RTNL,
11303 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11304 .doit = nl80211_update_mesh_config,
11305 .policy = nl80211_policy,
11306 .flags = GENL_UNS_ADMIN_PERM,
11307 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11308 NL80211_FLAG_NEED_RTNL,
11311 .cmd = NL80211_CMD_TRIGGER_SCAN,
11312 .doit = nl80211_trigger_scan,
11313 .policy = nl80211_policy,
11314 .flags = GENL_UNS_ADMIN_PERM,
11315 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11316 NL80211_FLAG_NEED_RTNL,
11319 .cmd = NL80211_CMD_ABORT_SCAN,
11320 .doit = nl80211_abort_scan,
11321 .policy = nl80211_policy,
11322 .flags = GENL_UNS_ADMIN_PERM,
11323 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11324 NL80211_FLAG_NEED_RTNL,
11327 .cmd = NL80211_CMD_GET_SCAN,
11328 .policy = nl80211_policy,
11329 .dumpit = nl80211_dump_scan,
11332 .cmd = NL80211_CMD_START_SCHED_SCAN,
11333 .doit = nl80211_start_sched_scan,
11334 .policy = nl80211_policy,
11335 .flags = GENL_UNS_ADMIN_PERM,
11336 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11337 NL80211_FLAG_NEED_RTNL,
11340 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11341 .doit = nl80211_stop_sched_scan,
11342 .policy = nl80211_policy,
11343 .flags = GENL_UNS_ADMIN_PERM,
11344 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11345 NL80211_FLAG_NEED_RTNL,
11348 .cmd = NL80211_CMD_AUTHENTICATE,
11349 .doit = nl80211_authenticate,
11350 .policy = nl80211_policy,
11351 .flags = GENL_UNS_ADMIN_PERM,
11352 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11353 NL80211_FLAG_NEED_RTNL |
11354 NL80211_FLAG_CLEAR_SKB,
11357 .cmd = NL80211_CMD_ASSOCIATE,
11358 .doit = nl80211_associate,
11359 .policy = nl80211_policy,
11360 .flags = GENL_UNS_ADMIN_PERM,
11361 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11362 NL80211_FLAG_NEED_RTNL,
11365 .cmd = NL80211_CMD_DEAUTHENTICATE,
11366 .doit = nl80211_deauthenticate,
11367 .policy = nl80211_policy,
11368 .flags = GENL_UNS_ADMIN_PERM,
11369 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11370 NL80211_FLAG_NEED_RTNL,
11373 .cmd = NL80211_CMD_DISASSOCIATE,
11374 .doit = nl80211_disassociate,
11375 .policy = nl80211_policy,
11376 .flags = GENL_UNS_ADMIN_PERM,
11377 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11378 NL80211_FLAG_NEED_RTNL,
11381 .cmd = NL80211_CMD_JOIN_IBSS,
11382 .doit = nl80211_join_ibss,
11383 .policy = nl80211_policy,
11384 .flags = GENL_UNS_ADMIN_PERM,
11385 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11386 NL80211_FLAG_NEED_RTNL,
11389 .cmd = NL80211_CMD_LEAVE_IBSS,
11390 .doit = nl80211_leave_ibss,
11391 .policy = nl80211_policy,
11392 .flags = GENL_UNS_ADMIN_PERM,
11393 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11394 NL80211_FLAG_NEED_RTNL,
11396 #ifdef CONFIG_NL80211_TESTMODE
11398 .cmd = NL80211_CMD_TESTMODE,
11399 .doit = nl80211_testmode_do,
11400 .dumpit = nl80211_testmode_dump,
11401 .policy = nl80211_policy,
11402 .flags = GENL_UNS_ADMIN_PERM,
11403 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11404 NL80211_FLAG_NEED_RTNL,
11408 .cmd = NL80211_CMD_CONNECT,
11409 .doit = nl80211_connect,
11410 .policy = nl80211_policy,
11411 .flags = GENL_UNS_ADMIN_PERM,
11412 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11413 NL80211_FLAG_NEED_RTNL,
11416 .cmd = NL80211_CMD_DISCONNECT,
11417 .doit = nl80211_disconnect,
11418 .policy = nl80211_policy,
11419 .flags = GENL_UNS_ADMIN_PERM,
11420 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11421 NL80211_FLAG_NEED_RTNL,
11424 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11425 .doit = nl80211_wiphy_netns,
11426 .policy = nl80211_policy,
11427 .flags = GENL_UNS_ADMIN_PERM,
11428 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11429 NL80211_FLAG_NEED_RTNL,
11432 .cmd = NL80211_CMD_GET_SURVEY,
11433 .policy = nl80211_policy,
11434 .dumpit = nl80211_dump_survey,
11437 .cmd = NL80211_CMD_SET_PMKSA,
11438 .doit = nl80211_setdel_pmksa,
11439 .policy = nl80211_policy,
11440 .flags = GENL_UNS_ADMIN_PERM,
11441 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11442 NL80211_FLAG_NEED_RTNL,
11445 .cmd = NL80211_CMD_DEL_PMKSA,
11446 .doit = nl80211_setdel_pmksa,
11447 .policy = nl80211_policy,
11448 .flags = GENL_UNS_ADMIN_PERM,
11449 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11450 NL80211_FLAG_NEED_RTNL,
11453 .cmd = NL80211_CMD_FLUSH_PMKSA,
11454 .doit = nl80211_flush_pmksa,
11455 .policy = nl80211_policy,
11456 .flags = GENL_UNS_ADMIN_PERM,
11457 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11458 NL80211_FLAG_NEED_RTNL,
11461 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11462 .doit = nl80211_remain_on_channel,
11463 .policy = nl80211_policy,
11464 .flags = GENL_UNS_ADMIN_PERM,
11465 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11466 NL80211_FLAG_NEED_RTNL,
11469 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11470 .doit = nl80211_cancel_remain_on_channel,
11471 .policy = nl80211_policy,
11472 .flags = GENL_UNS_ADMIN_PERM,
11473 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11474 NL80211_FLAG_NEED_RTNL,
11477 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11478 .doit = nl80211_set_tx_bitrate_mask,
11479 .policy = nl80211_policy,
11480 .flags = GENL_UNS_ADMIN_PERM,
11481 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11482 NL80211_FLAG_NEED_RTNL,
11485 .cmd = NL80211_CMD_REGISTER_FRAME,
11486 .doit = nl80211_register_mgmt,
11487 .policy = nl80211_policy,
11488 .flags = GENL_UNS_ADMIN_PERM,
11489 .internal_flags = NL80211_FLAG_NEED_WDEV |
11490 NL80211_FLAG_NEED_RTNL,
11493 .cmd = NL80211_CMD_FRAME,
11494 .doit = nl80211_tx_mgmt,
11495 .policy = nl80211_policy,
11496 .flags = GENL_UNS_ADMIN_PERM,
11497 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11498 NL80211_FLAG_NEED_RTNL,
11501 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11502 .doit = nl80211_tx_mgmt_cancel_wait,
11503 .policy = nl80211_policy,
11504 .flags = GENL_UNS_ADMIN_PERM,
11505 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11506 NL80211_FLAG_NEED_RTNL,
11509 .cmd = NL80211_CMD_SET_POWER_SAVE,
11510 .doit = nl80211_set_power_save,
11511 .policy = nl80211_policy,
11512 .flags = GENL_UNS_ADMIN_PERM,
11513 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11514 NL80211_FLAG_NEED_RTNL,
11517 .cmd = NL80211_CMD_GET_POWER_SAVE,
11518 .doit = nl80211_get_power_save,
11519 .policy = nl80211_policy,
11520 /* can be retrieved by unprivileged users */
11521 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11522 NL80211_FLAG_NEED_RTNL,
11525 .cmd = NL80211_CMD_SET_CQM,
11526 .doit = nl80211_set_cqm,
11527 .policy = nl80211_policy,
11528 .flags = GENL_UNS_ADMIN_PERM,
11529 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11530 NL80211_FLAG_NEED_RTNL,
11533 .cmd = NL80211_CMD_SET_CHANNEL,
11534 .doit = nl80211_set_channel,
11535 .policy = nl80211_policy,
11536 .flags = GENL_UNS_ADMIN_PERM,
11537 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11538 NL80211_FLAG_NEED_RTNL,
11541 .cmd = NL80211_CMD_SET_WDS_PEER,
11542 .doit = nl80211_set_wds_peer,
11543 .policy = nl80211_policy,
11544 .flags = GENL_UNS_ADMIN_PERM,
11545 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11546 NL80211_FLAG_NEED_RTNL,
11549 .cmd = NL80211_CMD_JOIN_MESH,
11550 .doit = nl80211_join_mesh,
11551 .policy = nl80211_policy,
11552 .flags = GENL_UNS_ADMIN_PERM,
11553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11554 NL80211_FLAG_NEED_RTNL,
11557 .cmd = NL80211_CMD_LEAVE_MESH,
11558 .doit = nl80211_leave_mesh,
11559 .policy = nl80211_policy,
11560 .flags = GENL_UNS_ADMIN_PERM,
11561 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11562 NL80211_FLAG_NEED_RTNL,
11565 .cmd = NL80211_CMD_JOIN_OCB,
11566 .doit = nl80211_join_ocb,
11567 .policy = nl80211_policy,
11568 .flags = GENL_UNS_ADMIN_PERM,
11569 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11570 NL80211_FLAG_NEED_RTNL,
11573 .cmd = NL80211_CMD_LEAVE_OCB,
11574 .doit = nl80211_leave_ocb,
11575 .policy = nl80211_policy,
11576 .flags = GENL_UNS_ADMIN_PERM,
11577 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11578 NL80211_FLAG_NEED_RTNL,
11582 .cmd = NL80211_CMD_GET_WOWLAN,
11583 .doit = nl80211_get_wowlan,
11584 .policy = nl80211_policy,
11585 /* can be retrieved by unprivileged users */
11586 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11587 NL80211_FLAG_NEED_RTNL,
11590 .cmd = NL80211_CMD_SET_WOWLAN,
11591 .doit = nl80211_set_wowlan,
11592 .policy = nl80211_policy,
11593 .flags = GENL_UNS_ADMIN_PERM,
11594 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11595 NL80211_FLAG_NEED_RTNL,
11599 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11600 .doit = nl80211_set_rekey_data,
11601 .policy = nl80211_policy,
11602 .flags = GENL_UNS_ADMIN_PERM,
11603 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11604 NL80211_FLAG_NEED_RTNL |
11605 NL80211_FLAG_CLEAR_SKB,
11608 .cmd = NL80211_CMD_TDLS_MGMT,
11609 .doit = nl80211_tdls_mgmt,
11610 .policy = nl80211_policy,
11611 .flags = GENL_UNS_ADMIN_PERM,
11612 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11613 NL80211_FLAG_NEED_RTNL,
11616 .cmd = NL80211_CMD_TDLS_OPER,
11617 .doit = nl80211_tdls_oper,
11618 .policy = nl80211_policy,
11619 .flags = GENL_UNS_ADMIN_PERM,
11620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11621 NL80211_FLAG_NEED_RTNL,
11624 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11625 .doit = nl80211_register_unexpected_frame,
11626 .policy = nl80211_policy,
11627 .flags = GENL_UNS_ADMIN_PERM,
11628 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11629 NL80211_FLAG_NEED_RTNL,
11632 .cmd = NL80211_CMD_PROBE_CLIENT,
11633 .doit = nl80211_probe_client,
11634 .policy = nl80211_policy,
11635 .flags = GENL_UNS_ADMIN_PERM,
11636 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11637 NL80211_FLAG_NEED_RTNL,
11640 .cmd = NL80211_CMD_REGISTER_BEACONS,
11641 .doit = nl80211_register_beacons,
11642 .policy = nl80211_policy,
11643 .flags = GENL_UNS_ADMIN_PERM,
11644 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11645 NL80211_FLAG_NEED_RTNL,
11648 .cmd = NL80211_CMD_SET_NOACK_MAP,
11649 .doit = nl80211_set_noack_map,
11650 .policy = nl80211_policy,
11651 .flags = GENL_UNS_ADMIN_PERM,
11652 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11653 NL80211_FLAG_NEED_RTNL,
11656 .cmd = NL80211_CMD_START_P2P_DEVICE,
11657 .doit = nl80211_start_p2p_device,
11658 .policy = nl80211_policy,
11659 .flags = GENL_UNS_ADMIN_PERM,
11660 .internal_flags = NL80211_FLAG_NEED_WDEV |
11661 NL80211_FLAG_NEED_RTNL,
11664 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11665 .doit = nl80211_stop_p2p_device,
11666 .policy = nl80211_policy,
11667 .flags = GENL_UNS_ADMIN_PERM,
11668 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11669 NL80211_FLAG_NEED_RTNL,
11672 .cmd = NL80211_CMD_SET_MCAST_RATE,
11673 .doit = nl80211_set_mcast_rate,
11674 .policy = nl80211_policy,
11675 .flags = GENL_UNS_ADMIN_PERM,
11676 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11677 NL80211_FLAG_NEED_RTNL,
11680 .cmd = NL80211_CMD_SET_MAC_ACL,
11681 .doit = nl80211_set_mac_acl,
11682 .policy = nl80211_policy,
11683 .flags = GENL_UNS_ADMIN_PERM,
11684 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11685 NL80211_FLAG_NEED_RTNL,
11688 .cmd = NL80211_CMD_RADAR_DETECT,
11689 .doit = nl80211_start_radar_detection,
11690 .policy = nl80211_policy,
11691 .flags = GENL_UNS_ADMIN_PERM,
11692 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11693 NL80211_FLAG_NEED_RTNL,
11696 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11697 .doit = nl80211_get_protocol_features,
11698 .policy = nl80211_policy,
11701 .cmd = NL80211_CMD_UPDATE_FT_IES,
11702 .doit = nl80211_update_ft_ies,
11703 .policy = nl80211_policy,
11704 .flags = GENL_UNS_ADMIN_PERM,
11705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11706 NL80211_FLAG_NEED_RTNL,
11709 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11710 .doit = nl80211_crit_protocol_start,
11711 .policy = nl80211_policy,
11712 .flags = GENL_UNS_ADMIN_PERM,
11713 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11714 NL80211_FLAG_NEED_RTNL,
11717 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11718 .doit = nl80211_crit_protocol_stop,
11719 .policy = nl80211_policy,
11720 .flags = GENL_UNS_ADMIN_PERM,
11721 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11722 NL80211_FLAG_NEED_RTNL,
11725 .cmd = NL80211_CMD_GET_COALESCE,
11726 .doit = nl80211_get_coalesce,
11727 .policy = nl80211_policy,
11728 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11729 NL80211_FLAG_NEED_RTNL,
11732 .cmd = NL80211_CMD_SET_COALESCE,
11733 .doit = nl80211_set_coalesce,
11734 .policy = nl80211_policy,
11735 .flags = GENL_UNS_ADMIN_PERM,
11736 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11737 NL80211_FLAG_NEED_RTNL,
11740 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11741 .doit = nl80211_channel_switch,
11742 .policy = nl80211_policy,
11743 .flags = GENL_UNS_ADMIN_PERM,
11744 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11745 NL80211_FLAG_NEED_RTNL,
11748 .cmd = NL80211_CMD_VENDOR,
11749 .doit = nl80211_vendor_cmd,
11750 .dumpit = nl80211_vendor_cmd_dump,
11751 .policy = nl80211_policy,
11752 .flags = GENL_UNS_ADMIN_PERM,
11753 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11754 NL80211_FLAG_NEED_RTNL,
11757 .cmd = NL80211_CMD_SET_QOS_MAP,
11758 .doit = nl80211_set_qos_map,
11759 .policy = nl80211_policy,
11760 .flags = GENL_UNS_ADMIN_PERM,
11761 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11762 NL80211_FLAG_NEED_RTNL,
11765 .cmd = NL80211_CMD_ADD_TX_TS,
11766 .doit = nl80211_add_tx_ts,
11767 .policy = nl80211_policy,
11768 .flags = GENL_UNS_ADMIN_PERM,
11769 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11770 NL80211_FLAG_NEED_RTNL,
11773 .cmd = NL80211_CMD_DEL_TX_TS,
11774 .doit = nl80211_del_tx_ts,
11775 .policy = nl80211_policy,
11776 .flags = GENL_UNS_ADMIN_PERM,
11777 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11778 NL80211_FLAG_NEED_RTNL,
11781 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11782 .doit = nl80211_tdls_channel_switch,
11783 .policy = nl80211_policy,
11784 .flags = GENL_UNS_ADMIN_PERM,
11785 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11786 NL80211_FLAG_NEED_RTNL,
11789 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11790 .doit = nl80211_tdls_cancel_channel_switch,
11791 .policy = nl80211_policy,
11792 .flags = GENL_UNS_ADMIN_PERM,
11793 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11794 NL80211_FLAG_NEED_RTNL,
11798 /* notification functions */
11800 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11801 enum nl80211_commands cmd)
11803 struct sk_buff *msg;
11804 struct nl80211_dump_wiphy_state state = {};
11806 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11807 cmd != NL80211_CMD_DEL_WIPHY);
11809 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11813 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
11818 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11819 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11822 static int nl80211_add_scan_req(struct sk_buff *msg,
11823 struct cfg80211_registered_device *rdev)
11825 struct cfg80211_scan_request *req = rdev->scan_req;
11826 struct nlattr *nest;
11832 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11834 goto nla_put_failure;
11835 for (i = 0; i < req->n_ssids; i++) {
11836 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11837 goto nla_put_failure;
11839 nla_nest_end(msg, nest);
11841 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11843 goto nla_put_failure;
11844 for (i = 0; i < req->n_channels; i++) {
11845 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11846 goto nla_put_failure;
11848 nla_nest_end(msg, nest);
11851 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11852 goto nla_put_failure;
11855 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11856 goto nla_put_failure;
11858 if (req->info.scan_start_tsf &&
11859 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
11860 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
11861 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
11862 req->info.tsf_bssid)))
11863 goto nla_put_failure;
11870 static int nl80211_send_scan_msg(struct sk_buff *msg,
11871 struct cfg80211_registered_device *rdev,
11872 struct wireless_dev *wdev,
11873 u32 portid, u32 seq, int flags,
11878 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11882 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11883 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11884 wdev->netdev->ifindex)) ||
11885 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11887 goto nla_put_failure;
11889 /* ignore errors and send incomplete event anyway */
11890 nl80211_add_scan_req(msg, rdev);
11892 genlmsg_end(msg, hdr);
11896 genlmsg_cancel(msg, hdr);
11901 nl80211_send_sched_scan_msg(struct sk_buff *msg,
11902 struct cfg80211_registered_device *rdev,
11903 struct net_device *netdev,
11904 u32 portid, u32 seq, int flags, u32 cmd)
11908 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11912 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11913 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11914 goto nla_put_failure;
11916 genlmsg_end(msg, hdr);
11920 genlmsg_cancel(msg, hdr);
11924 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
11925 struct wireless_dev *wdev)
11927 struct sk_buff *msg;
11929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11933 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11934 NL80211_CMD_TRIGGER_SCAN) < 0) {
11939 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11940 NL80211_MCGRP_SCAN, GFP_KERNEL);
11943 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11944 struct wireless_dev *wdev, bool aborted)
11946 struct sk_buff *msg;
11948 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11952 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11953 aborted ? NL80211_CMD_SCAN_ABORTED :
11954 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
11962 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11963 struct sk_buff *msg)
11968 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11969 NL80211_MCGRP_SCAN, GFP_KERNEL);
11972 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11973 struct net_device *netdev)
11975 struct sk_buff *msg;
11977 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11981 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11982 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11987 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11988 NL80211_MCGRP_SCAN, GFP_KERNEL);
11991 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11992 struct net_device *netdev, u32 cmd)
11994 struct sk_buff *msg;
11996 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12000 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12005 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12006 NL80211_MCGRP_SCAN, GFP_KERNEL);
12009 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12010 struct regulatory_request *request)
12012 /* Userspace can always count this one always being set */
12013 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12014 goto nla_put_failure;
12016 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12017 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12018 NL80211_REGDOM_TYPE_WORLD))
12019 goto nla_put_failure;
12020 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12021 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12022 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12023 goto nla_put_failure;
12024 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12025 request->intersect) {
12026 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12027 NL80211_REGDOM_TYPE_INTERSECTION))
12028 goto nla_put_failure;
12030 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12031 NL80211_REGDOM_TYPE_COUNTRY) ||
12032 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12034 goto nla_put_failure;
12037 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12038 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12041 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12042 goto nla_put_failure;
12045 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12046 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12047 goto nla_put_failure;
12057 * This can happen on global regulatory changes or device specific settings
12058 * based on custom regulatory domains.
12060 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12061 struct regulatory_request *request)
12063 struct sk_buff *msg;
12066 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12070 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12076 if (nl80211_reg_change_event_fill(msg, request) == false)
12077 goto nla_put_failure;
12079 genlmsg_end(msg, hdr);
12082 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12083 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12089 genlmsg_cancel(msg, hdr);
12093 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12094 struct net_device *netdev,
12095 const u8 *buf, size_t len,
12096 enum nl80211_commands cmd, gfp_t gfp,
12099 struct sk_buff *msg;
12102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12106 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12113 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12114 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
12115 goto nla_put_failure;
12117 if (uapsd_queues >= 0) {
12118 struct nlattr *nla_wmm =
12119 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12121 goto nla_put_failure;
12123 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12125 goto nla_put_failure;
12127 nla_nest_end(msg, nla_wmm);
12130 genlmsg_end(msg, hdr);
12132 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12133 NL80211_MCGRP_MLME, gfp);
12137 genlmsg_cancel(msg, hdr);
12141 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
12142 struct net_device *netdev, const u8 *buf,
12143 size_t len, gfp_t gfp)
12145 nl80211_send_mlme_event(rdev, netdev, buf, len,
12146 NL80211_CMD_AUTHENTICATE, gfp, -1);
12149 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12150 struct net_device *netdev, const u8 *buf,
12151 size_t len, gfp_t gfp, int uapsd_queues)
12153 nl80211_send_mlme_event(rdev, netdev, buf, len,
12154 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
12157 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
12158 struct net_device *netdev, const u8 *buf,
12159 size_t len, gfp_t gfp)
12161 nl80211_send_mlme_event(rdev, netdev, buf, len,
12162 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
12165 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12166 struct net_device *netdev, const u8 *buf,
12167 size_t len, gfp_t gfp)
12169 nl80211_send_mlme_event(rdev, netdev, buf, len,
12170 NL80211_CMD_DISASSOCIATE, gfp, -1);
12173 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12176 struct wireless_dev *wdev = dev->ieee80211_ptr;
12177 struct wiphy *wiphy = wdev->wiphy;
12178 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12179 const struct ieee80211_mgmt *mgmt = (void *)buf;
12182 if (WARN_ON(len < 2))
12185 if (ieee80211_is_deauth(mgmt->frame_control))
12186 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12188 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
12190 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
12191 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
12193 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
12195 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12196 struct net_device *netdev, int cmd,
12197 const u8 *addr, gfp_t gfp)
12199 struct sk_buff *msg;
12202 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12206 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12212 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12213 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12214 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12215 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12216 goto nla_put_failure;
12218 genlmsg_end(msg, hdr);
12220 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12221 NL80211_MCGRP_MLME, gfp);
12225 genlmsg_cancel(msg, hdr);
12229 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
12230 struct net_device *netdev, const u8 *addr,
12233 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
12237 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
12238 struct net_device *netdev, const u8 *addr,
12241 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12245 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12246 struct net_device *netdev, const u8 *bssid,
12247 const u8 *req_ie, size_t req_ie_len,
12248 const u8 *resp_ie, size_t resp_ie_len,
12249 int status, gfp_t gfp)
12251 struct sk_buff *msg;
12254 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12258 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12264 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12265 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12266 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
12267 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12268 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12270 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
12272 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12274 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12275 goto nla_put_failure;
12277 genlmsg_end(msg, hdr);
12279 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12280 NL80211_MCGRP_MLME, gfp);
12284 genlmsg_cancel(msg, hdr);
12288 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12289 struct net_device *netdev, const u8 *bssid,
12290 const u8 *req_ie, size_t req_ie_len,
12291 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12293 struct sk_buff *msg;
12296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12300 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12306 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12307 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12308 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12310 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12312 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12313 goto nla_put_failure;
12315 genlmsg_end(msg, hdr);
12317 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12318 NL80211_MCGRP_MLME, gfp);
12322 genlmsg_cancel(msg, hdr);
12326 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12327 struct net_device *netdev, u16 reason,
12328 const u8 *ie, size_t ie_len, bool from_ap)
12330 struct sk_buff *msg;
12333 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12337 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12343 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12344 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12345 (from_ap && reason &&
12346 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12348 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12349 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12350 goto nla_put_failure;
12352 genlmsg_end(msg, hdr);
12354 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12355 NL80211_MCGRP_MLME, GFP_KERNEL);
12359 genlmsg_cancel(msg, hdr);
12363 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12364 struct net_device *netdev, const u8 *bssid,
12367 struct sk_buff *msg;
12370 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12374 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12380 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12381 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12382 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12383 goto nla_put_failure;
12385 genlmsg_end(msg, hdr);
12387 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12388 NL80211_MCGRP_MLME, gfp);
12392 genlmsg_cancel(msg, hdr);
12396 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12397 const u8* ie, u8 ie_len, gfp_t gfp)
12399 struct wireless_dev *wdev = dev->ieee80211_ptr;
12400 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12401 struct sk_buff *msg;
12404 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12407 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12409 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12413 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12419 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12420 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12421 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12423 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12424 goto nla_put_failure;
12426 genlmsg_end(msg, hdr);
12428 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12429 NL80211_MCGRP_MLME, gfp);
12433 genlmsg_cancel(msg, hdr);
12436 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
12438 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12439 struct net_device *netdev, const u8 *addr,
12440 enum nl80211_key_type key_type, int key_id,
12441 const u8 *tsc, gfp_t gfp)
12443 struct sk_buff *msg;
12446 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12450 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12456 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12457 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12458 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12459 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12461 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12462 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12463 goto nla_put_failure;
12465 genlmsg_end(msg, hdr);
12467 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12468 NL80211_MCGRP_MLME, gfp);
12472 genlmsg_cancel(msg, hdr);
12476 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12477 struct ieee80211_channel *channel_before,
12478 struct ieee80211_channel *channel_after)
12480 struct sk_buff *msg;
12482 struct nlattr *nl_freq;
12484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
12488 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12495 * Since we are applying the beacon hint to a wiphy we know its
12496 * wiphy_idx is valid
12498 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12499 goto nla_put_failure;
12502 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12504 goto nla_put_failure;
12505 if (nl80211_msg_put_channel(msg, channel_before, false))
12506 goto nla_put_failure;
12507 nla_nest_end(msg, nl_freq);
12510 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12512 goto nla_put_failure;
12513 if (nl80211_msg_put_channel(msg, channel_after, false))
12514 goto nla_put_failure;
12515 nla_nest_end(msg, nl_freq);
12517 genlmsg_end(msg, hdr);
12520 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12521 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12527 genlmsg_cancel(msg, hdr);
12531 static void nl80211_send_remain_on_chan_event(
12532 int cmd, struct cfg80211_registered_device *rdev,
12533 struct wireless_dev *wdev, u64 cookie,
12534 struct ieee80211_channel *chan,
12535 unsigned int duration, gfp_t gfp)
12537 struct sk_buff *msg;
12540 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12544 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12550 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12551 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12552 wdev->netdev->ifindex)) ||
12553 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12554 NL80211_ATTR_PAD) ||
12555 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
12556 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12557 NL80211_CHAN_NO_HT) ||
12558 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12560 goto nla_put_failure;
12562 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12563 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12564 goto nla_put_failure;
12566 genlmsg_end(msg, hdr);
12568 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12569 NL80211_MCGRP_MLME, gfp);
12573 genlmsg_cancel(msg, hdr);
12577 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12578 struct ieee80211_channel *chan,
12579 unsigned int duration, gfp_t gfp)
12581 struct wiphy *wiphy = wdev->wiphy;
12582 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12584 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
12585 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
12586 rdev, wdev, cookie, chan,
12589 EXPORT_SYMBOL(cfg80211_ready_on_channel);
12591 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12592 struct ieee80211_channel *chan,
12595 struct wiphy *wiphy = wdev->wiphy;
12596 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12598 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
12599 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12600 rdev, wdev, cookie, chan, 0, gfp);
12602 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
12604 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12605 struct station_info *sinfo, gfp_t gfp)
12607 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12608 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12609 struct sk_buff *msg;
12611 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12613 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12617 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
12618 rdev, dev, mac_addr, sinfo) < 0) {
12623 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12624 NL80211_MCGRP_MLME, gfp);
12626 EXPORT_SYMBOL(cfg80211_new_sta);
12628 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12629 struct station_info *sinfo, gfp_t gfp)
12631 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12632 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12633 struct sk_buff *msg;
12634 struct station_info empty_sinfo = {};
12637 sinfo = &empty_sinfo;
12639 trace_cfg80211_del_sta(dev, mac_addr);
12641 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12645 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
12646 rdev, dev, mac_addr, sinfo) < 0) {
12651 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12652 NL80211_MCGRP_MLME, gfp);
12654 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
12656 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12657 enum nl80211_connect_failed_reason reason,
12660 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12661 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12662 struct sk_buff *msg;
12665 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12669 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12675 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12676 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12677 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12678 goto nla_put_failure;
12680 genlmsg_end(msg, hdr);
12682 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12683 NL80211_MCGRP_MLME, gfp);
12687 genlmsg_cancel(msg, hdr);
12690 EXPORT_SYMBOL(cfg80211_conn_failed);
12692 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12693 const u8 *addr, gfp_t gfp)
12695 struct wireless_dev *wdev = dev->ieee80211_ptr;
12696 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12697 struct sk_buff *msg;
12699 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
12704 msg = nlmsg_new(100, gfp);
12708 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12714 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12715 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12716 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12717 goto nla_put_failure;
12719 genlmsg_end(msg, hdr);
12720 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12724 genlmsg_cancel(msg, hdr);
12729 bool cfg80211_rx_spurious_frame(struct net_device *dev,
12730 const u8 *addr, gfp_t gfp)
12732 struct wireless_dev *wdev = dev->ieee80211_ptr;
12735 trace_cfg80211_rx_spurious_frame(dev, addr);
12737 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12738 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12739 trace_cfg80211_return_bool(false);
12742 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12744 trace_cfg80211_return_bool(ret);
12747 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
12749 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12750 const u8 *addr, gfp_t gfp)
12752 struct wireless_dev *wdev = dev->ieee80211_ptr;
12755 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12757 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12758 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12759 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12760 trace_cfg80211_return_bool(false);
12763 ret = __nl80211_unexpected_frame(dev,
12764 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12766 trace_cfg80211_return_bool(ret);
12769 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
12771 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
12772 struct wireless_dev *wdev, u32 nlportid,
12773 int freq, int sig_dbm,
12774 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
12776 struct net_device *netdev = wdev->netdev;
12777 struct sk_buff *msg;
12780 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12784 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12790 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12791 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12792 netdev->ifindex)) ||
12793 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12794 NL80211_ATTR_PAD) ||
12795 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12797 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12798 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12800 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
12801 goto nla_put_failure;
12803 genlmsg_end(msg, hdr);
12805 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12808 genlmsg_cancel(msg, hdr);
12813 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12814 const u8 *buf, size_t len, bool ack, gfp_t gfp)
12816 struct wiphy *wiphy = wdev->wiphy;
12817 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12818 struct net_device *netdev = wdev->netdev;
12819 struct sk_buff *msg;
12822 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12824 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12828 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
12834 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12835 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12836 netdev->ifindex)) ||
12837 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12838 NL80211_ATTR_PAD) ||
12839 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12840 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12841 NL80211_ATTR_PAD) ||
12842 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12843 goto nla_put_failure;
12845 genlmsg_end(msg, hdr);
12847 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12848 NL80211_MCGRP_MLME, gfp);
12852 genlmsg_cancel(msg, hdr);
12855 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
12857 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12858 const char *mac, gfp_t gfp)
12860 struct wireless_dev *wdev = dev->ieee80211_ptr;
12861 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12862 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12868 cb = (void **)msg->cb;
12870 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12876 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12877 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12878 goto nla_put_failure;
12880 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
12881 goto nla_put_failure;
12883 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12885 goto nla_put_failure;
12895 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12897 void **cb = (void **)msg->cb;
12898 struct cfg80211_registered_device *rdev = cb[2];
12900 nla_nest_end(msg, cb[1]);
12901 genlmsg_end(msg, cb[0]);
12903 memset(msg->cb, 0, sizeof(msg->cb));
12905 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12906 NL80211_MCGRP_MLME, gfp);
12909 void cfg80211_cqm_rssi_notify(struct net_device *dev,
12910 enum nl80211_cqm_rssi_threshold_event rssi_event,
12913 struct sk_buff *msg;
12915 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12917 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12918 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12921 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12925 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12927 goto nla_put_failure;
12929 cfg80211_send_cqm(msg, gfp);
12936 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
12938 void cfg80211_cqm_txe_notify(struct net_device *dev,
12939 const u8 *peer, u32 num_packets,
12940 u32 rate, u32 intvl, gfp_t gfp)
12942 struct sk_buff *msg;
12944 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12948 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12949 goto nla_put_failure;
12951 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12952 goto nla_put_failure;
12954 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12955 goto nla_put_failure;
12957 cfg80211_send_cqm(msg, gfp);
12963 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12965 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12966 const u8 *peer, u32 num_packets, gfp_t gfp)
12968 struct sk_buff *msg;
12970 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12972 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12976 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12977 goto nla_put_failure;
12979 cfg80211_send_cqm(msg, gfp);
12985 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12987 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12989 struct sk_buff *msg;
12991 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12995 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12996 goto nla_put_failure;
12998 cfg80211_send_cqm(msg, gfp);
13004 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13006 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13007 struct net_device *netdev, const u8 *bssid,
13008 const u8 *replay_ctr, gfp_t gfp)
13010 struct sk_buff *msg;
13011 struct nlattr *rekey_attr;
13014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13018 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13024 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13025 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13026 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13027 goto nla_put_failure;
13029 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13031 goto nla_put_failure;
13033 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13034 NL80211_REPLAY_CTR_LEN, replay_ctr))
13035 goto nla_put_failure;
13037 nla_nest_end(msg, rekey_attr);
13039 genlmsg_end(msg, hdr);
13041 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13042 NL80211_MCGRP_MLME, gfp);
13046 genlmsg_cancel(msg, hdr);
13050 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13051 const u8 *replay_ctr, gfp_t gfp)
13053 struct wireless_dev *wdev = dev->ieee80211_ptr;
13054 struct wiphy *wiphy = wdev->wiphy;
13055 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13057 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13058 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13060 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13063 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13064 struct net_device *netdev, int index,
13065 const u8 *bssid, bool preauth, gfp_t gfp)
13067 struct sk_buff *msg;
13068 struct nlattr *attr;
13071 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13075 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13081 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13082 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13083 goto nla_put_failure;
13085 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13087 goto nla_put_failure;
13089 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13090 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13092 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13093 goto nla_put_failure;
13095 nla_nest_end(msg, attr);
13097 genlmsg_end(msg, hdr);
13099 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13100 NL80211_MCGRP_MLME, gfp);
13104 genlmsg_cancel(msg, hdr);
13108 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13109 const u8 *bssid, bool preauth, gfp_t gfp)
13111 struct wireless_dev *wdev = dev->ieee80211_ptr;
13112 struct wiphy *wiphy = wdev->wiphy;
13113 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13115 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13116 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13118 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13120 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13121 struct net_device *netdev,
13122 struct cfg80211_chan_def *chandef,
13124 enum nl80211_commands notif,
13127 struct sk_buff *msg;
13130 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13134 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
13140 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13141 goto nla_put_failure;
13143 if (nl80211_send_chandef(msg, chandef))
13144 goto nla_put_failure;
13146 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13147 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13148 goto nla_put_failure;
13150 genlmsg_end(msg, hdr);
13152 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13153 NL80211_MCGRP_MLME, gfp);
13157 genlmsg_cancel(msg, hdr);
13161 void cfg80211_ch_switch_notify(struct net_device *dev,
13162 struct cfg80211_chan_def *chandef)
13164 struct wireless_dev *wdev = dev->ieee80211_ptr;
13165 struct wiphy *wiphy = wdev->wiphy;
13166 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13168 ASSERT_WDEV_LOCK(wdev);
13170 trace_cfg80211_ch_switch_notify(dev, chandef);
13172 wdev->chandef = *chandef;
13173 wdev->preset_chandef = *chandef;
13174 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13175 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
13177 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13179 void cfg80211_ch_switch_started_notify(struct net_device *dev,
13180 struct cfg80211_chan_def *chandef,
13183 struct wireless_dev *wdev = dev->ieee80211_ptr;
13184 struct wiphy *wiphy = wdev->wiphy;
13185 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13187 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13189 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13190 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13192 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13195 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
13196 const struct cfg80211_chan_def *chandef,
13197 enum nl80211_radar_event event,
13198 struct net_device *netdev, gfp_t gfp)
13200 struct sk_buff *msg;
13203 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13207 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13213 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13214 goto nla_put_failure;
13216 /* NOP and radar events don't need a netdev parameter */
13218 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13220 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13221 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13223 goto nla_put_failure;
13226 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13227 goto nla_put_failure;
13229 if (nl80211_send_chandef(msg, chandef))
13230 goto nla_put_failure;
13232 genlmsg_end(msg, hdr);
13234 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13235 NL80211_MCGRP_MLME, gfp);
13239 genlmsg_cancel(msg, hdr);
13243 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13244 u64 cookie, bool acked, gfp_t gfp)
13246 struct wireless_dev *wdev = dev->ieee80211_ptr;
13247 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13248 struct sk_buff *msg;
13251 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13258 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13264 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13265 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13266 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
13267 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13268 NL80211_ATTR_PAD) ||
13269 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13270 goto nla_put_failure;
13272 genlmsg_end(msg, hdr);
13274 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13275 NL80211_MCGRP_MLME, gfp);
13279 genlmsg_cancel(msg, hdr);
13282 EXPORT_SYMBOL(cfg80211_probe_status);
13284 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13285 const u8 *frame, size_t len,
13286 int freq, int sig_dbm)
13288 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13289 struct sk_buff *msg;
13291 struct cfg80211_beacon_registration *reg;
13293 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13295 spin_lock_bh(&rdev->beacon_registrations_lock);
13296 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13297 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13299 spin_unlock_bh(&rdev->beacon_registrations_lock);
13303 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13305 goto nla_put_failure;
13307 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13309 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13311 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13312 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13313 goto nla_put_failure;
13315 genlmsg_end(msg, hdr);
13317 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13319 spin_unlock_bh(&rdev->beacon_registrations_lock);
13323 spin_unlock_bh(&rdev->beacon_registrations_lock);
13325 genlmsg_cancel(msg, hdr);
13328 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13331 static int cfg80211_net_detect_results(struct sk_buff *msg,
13332 struct cfg80211_wowlan_wakeup *wakeup)
13334 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13335 struct nlattr *nl_results, *nl_match, *nl_freqs;
13338 nl_results = nla_nest_start(
13339 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13343 for (i = 0; i < nd->n_matches; i++) {
13344 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13346 nl_match = nla_nest_start(msg, i);
13350 /* The SSID attribute is optional in nl80211, but for
13351 * simplicity reasons it's always present in the
13352 * cfg80211 structure. If a driver can't pass the
13353 * SSID, that needs to be changed. A zero length SSID
13354 * is still a valid SSID (wildcard), so it cannot be
13355 * used for this purpose.
13357 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13358 match->ssid.ssid)) {
13359 nla_nest_cancel(msg, nl_match);
13363 if (match->n_channels) {
13364 nl_freqs = nla_nest_start(
13365 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13367 nla_nest_cancel(msg, nl_match);
13371 for (j = 0; j < match->n_channels; j++) {
13372 if (nla_put_u32(msg, j, match->channels[j])) {
13373 nla_nest_cancel(msg, nl_freqs);
13374 nla_nest_cancel(msg, nl_match);
13379 nla_nest_end(msg, nl_freqs);
13382 nla_nest_end(msg, nl_match);
13386 nla_nest_end(msg, nl_results);
13390 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13391 struct cfg80211_wowlan_wakeup *wakeup,
13394 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13395 struct sk_buff *msg;
13399 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13402 size += wakeup->packet_present_len;
13404 msg = nlmsg_new(size, gfp);
13408 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13412 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13413 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13417 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13418 wdev->netdev->ifindex))
13422 struct nlattr *reasons;
13424 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
13428 if (wakeup->disconnect &&
13429 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13431 if (wakeup->magic_pkt &&
13432 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13434 if (wakeup->gtk_rekey_failure &&
13435 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13437 if (wakeup->eap_identity_req &&
13438 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13440 if (wakeup->four_way_handshake &&
13441 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13443 if (wakeup->rfkill_release &&
13444 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13447 if (wakeup->pattern_idx >= 0 &&
13448 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13449 wakeup->pattern_idx))
13452 if (wakeup->tcp_match &&
13453 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13456 if (wakeup->tcp_connlost &&
13457 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13460 if (wakeup->tcp_nomoretokens &&
13462 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13465 if (wakeup->packet) {
13466 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13467 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13469 if (!wakeup->packet_80211) {
13471 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13473 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13476 if (wakeup->packet_len &&
13477 nla_put_u32(msg, len_attr, wakeup->packet_len))
13480 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13485 if (wakeup->net_detect &&
13486 cfg80211_net_detect_results(msg, wakeup))
13489 nla_nest_end(msg, reasons);
13492 genlmsg_end(msg, hdr);
13494 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13495 NL80211_MCGRP_MLME, gfp);
13501 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13504 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13505 enum nl80211_tdls_operation oper,
13506 u16 reason_code, gfp_t gfp)
13508 struct wireless_dev *wdev = dev->ieee80211_ptr;
13509 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13510 struct sk_buff *msg;
13513 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13520 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13526 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13527 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13528 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13529 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13530 (reason_code > 0 &&
13531 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13532 goto nla_put_failure;
13534 genlmsg_end(msg, hdr);
13536 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13537 NL80211_MCGRP_MLME, gfp);
13541 genlmsg_cancel(msg, hdr);
13544 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13546 static int nl80211_netlink_notify(struct notifier_block * nb,
13547 unsigned long state,
13550 struct netlink_notify *notify = _notify;
13551 struct cfg80211_registered_device *rdev;
13552 struct wireless_dev *wdev;
13553 struct cfg80211_beacon_registration *reg, *tmp;
13555 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
13556 return NOTIFY_DONE;
13560 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
13561 bool schedule_destroy_work = false;
13562 bool schedule_scan_stop = false;
13563 struct cfg80211_sched_scan_request *sched_scan_req =
13564 rcu_dereference(rdev->sched_scan_req);
13566 if (sched_scan_req && notify->portid &&
13567 sched_scan_req->owner_nlportid == notify->portid)
13568 schedule_scan_stop = true;
13570 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
13571 cfg80211_mlme_unregister_socket(wdev, notify->portid);
13573 if (wdev->owner_nlportid == notify->portid)
13574 schedule_destroy_work = true;
13577 spin_lock_bh(&rdev->beacon_registrations_lock);
13578 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13580 if (reg->nlportid == notify->portid) {
13581 list_del(®->list);
13586 spin_unlock_bh(&rdev->beacon_registrations_lock);
13588 if (schedule_destroy_work) {
13589 struct cfg80211_iface_destroy *destroy;
13591 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13593 destroy->nlportid = notify->portid;
13594 spin_lock(&rdev->destroy_list_lock);
13595 list_add(&destroy->list, &rdev->destroy_list);
13596 spin_unlock(&rdev->destroy_list_lock);
13597 schedule_work(&rdev->destroy_work);
13599 } else if (schedule_scan_stop) {
13600 sched_scan_req->owner_nlportid = 0;
13602 if (rdev->ops->sched_scan_stop &&
13603 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13604 schedule_work(&rdev->sched_scan_stop_wk);
13611 * It is possible that the user space process that is controlling the
13612 * indoor setting disappeared, so notify the regulatory core.
13614 regulatory_netlink_notify(notify->portid);
13618 static struct notifier_block nl80211_netlink_notifier = {
13619 .notifier_call = nl80211_netlink_notify,
13622 void cfg80211_ft_event(struct net_device *netdev,
13623 struct cfg80211_ft_event_params *ft_event)
13625 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
13626 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13627 struct sk_buff *msg;
13630 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13632 if (!ft_event->target_ap)
13635 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13639 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
13643 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13644 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13645 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13648 if (ft_event->ies &&
13649 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13651 if (ft_event->ric_ies &&
13652 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13653 ft_event->ric_ies))
13656 genlmsg_end(msg, hdr);
13658 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13659 NL80211_MCGRP_MLME, GFP_KERNEL);
13664 EXPORT_SYMBOL(cfg80211_ft_event);
13666 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13668 struct cfg80211_registered_device *rdev;
13669 struct sk_buff *msg;
13673 rdev = wiphy_to_rdev(wdev->wiphy);
13674 if (!rdev->crit_proto_nlportid)
13677 nlportid = rdev->crit_proto_nlportid;
13678 rdev->crit_proto_nlportid = 0;
13680 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13684 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13686 goto nla_put_failure;
13688 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13689 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13691 goto nla_put_failure;
13693 genlmsg_end(msg, hdr);
13695 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13700 genlmsg_cancel(msg, hdr);
13703 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13705 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13707 struct wiphy *wiphy = wdev->wiphy;
13708 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13709 struct sk_buff *msg;
13712 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13716 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13721 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13722 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13726 genlmsg_end(msg, hdr);
13728 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13729 NL80211_MCGRP_MLME, GFP_KERNEL);
13735 /* initialisation/exit functions */
13737 int nl80211_init(void)
13741 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13746 err = netlink_register_notifier(&nl80211_netlink_notifier);
13752 genl_unregister_family(&nl80211_fam);
13756 void nl80211_exit(void)
13758 netlink_unregister_notifier(&nl80211_netlink_notifier);
13759 genl_unregister_family(&nl80211_fam);