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;
851 bool have_key = false;
853 nla_for_each_nested(key, keys, rem) {
861 result = kzalloc(sizeof(*result), GFP_KERNEL);
863 return ERR_PTR(-ENOMEM);
867 nla_for_each_nested(key, keys, rem) {
868 memset(&parse, 0, sizeof(parse));
871 err = nl80211_parse_key_new(key, &parse);
877 if (parse.idx < 0 || parse.idx > 3)
883 result->def = parse.idx;
884 if (!parse.def_uni || !parse.def_multi)
886 } else if (parse.defmgmt)
888 err = cfg80211_validate_key_settings(rdev, &parse.p,
889 parse.idx, false, NULL);
892 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
893 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
897 result->params[parse.idx].cipher = parse.p.cipher;
898 result->params[parse.idx].key_len = parse.p.key_len;
899 result->params[parse.idx].key = result->data[parse.idx];
900 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
902 /* must be WEP key if we got here */
907 if (result->def < 0) {
918 static int nl80211_key_allowed(struct wireless_dev *wdev)
920 ASSERT_WDEV_LOCK(wdev);
922 switch (wdev->iftype) {
923 case NL80211_IFTYPE_AP:
924 case NL80211_IFTYPE_AP_VLAN:
925 case NL80211_IFTYPE_P2P_GO:
926 case NL80211_IFTYPE_MESH_POINT:
928 case NL80211_IFTYPE_ADHOC:
929 case NL80211_IFTYPE_STATION:
930 case NL80211_IFTYPE_P2P_CLIENT:
931 if (!wdev->current_bss)
934 case NL80211_IFTYPE_UNSPECIFIED:
935 case NL80211_IFTYPE_OCB:
936 case NL80211_IFTYPE_MONITOR:
937 case NL80211_IFTYPE_P2P_DEVICE:
938 case NL80211_IFTYPE_WDS:
939 case NUM_NL80211_IFTYPES:
946 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
949 struct ieee80211_channel *chan;
953 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
954 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
959 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
961 struct nlattr *nl_modes = nla_nest_start(msg, attr);
965 goto nla_put_failure;
969 if ((ifmodes & 1) && nla_put_flag(msg, i))
970 goto nla_put_failure;
975 nla_nest_end(msg, nl_modes);
982 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
986 struct nlattr *nl_combis;
989 nl_combis = nla_nest_start(msg,
990 NL80211_ATTR_INTERFACE_COMBINATIONS);
992 goto nla_put_failure;
994 for (i = 0; i < wiphy->n_iface_combinations; i++) {
995 const struct ieee80211_iface_combination *c;
996 struct nlattr *nl_combi, *nl_limits;
998 c = &wiphy->iface_combinations[i];
1000 nl_combi = nla_nest_start(msg, i + 1);
1002 goto nla_put_failure;
1004 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1006 goto nla_put_failure;
1008 for (j = 0; j < c->n_limits; j++) {
1009 struct nlattr *nl_limit;
1011 nl_limit = nla_nest_start(msg, j + 1);
1013 goto nla_put_failure;
1014 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1016 goto nla_put_failure;
1017 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1018 c->limits[j].types))
1019 goto nla_put_failure;
1020 nla_nest_end(msg, nl_limit);
1023 nla_nest_end(msg, nl_limits);
1025 if (c->beacon_int_infra_match &&
1026 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1027 goto nla_put_failure;
1028 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1029 c->num_different_channels) ||
1030 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1032 goto nla_put_failure;
1034 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1035 c->radar_detect_widths) ||
1036 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1037 c->radar_detect_regions)))
1038 goto nla_put_failure;
1040 nla_nest_end(msg, nl_combi);
1043 nla_nest_end(msg, nl_combis);
1051 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1052 struct sk_buff *msg)
1054 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1055 struct nlattr *nl_tcp;
1060 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1064 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1065 tcp->data_payload_max))
1068 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1069 tcp->data_payload_max))
1072 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1075 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1076 sizeof(*tcp->tok), tcp->tok))
1079 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1080 tcp->data_interval_max))
1083 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1084 tcp->wake_payload_max))
1087 nla_nest_end(msg, nl_tcp);
1091 static int nl80211_send_wowlan(struct sk_buff *msg,
1092 struct cfg80211_registered_device *rdev,
1095 struct nlattr *nl_wowlan;
1097 if (!rdev->wiphy.wowlan)
1100 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1104 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1105 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1106 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1107 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1108 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1109 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1110 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1111 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1112 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1113 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1114 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1115 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1116 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1117 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1118 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1119 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1122 if (rdev->wiphy.wowlan->n_patterns) {
1123 struct nl80211_pattern_support pat = {
1124 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1125 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1126 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1127 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1130 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1135 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1136 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1137 rdev->wiphy.wowlan->max_nd_match_sets))
1140 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1143 nla_nest_end(msg, nl_wowlan);
1149 static int nl80211_send_coalesce(struct sk_buff *msg,
1150 struct cfg80211_registered_device *rdev)
1152 struct nl80211_coalesce_rule_support rule;
1154 if (!rdev->wiphy.coalesce)
1157 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1158 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1159 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1160 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1161 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1162 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1164 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1170 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1171 struct ieee80211_supported_band *sband)
1173 struct nlattr *nl_rates, *nl_rate;
1174 struct ieee80211_rate *rate;
1178 if (sband->ht_cap.ht_supported &&
1179 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1180 sizeof(sband->ht_cap.mcs),
1181 &sband->ht_cap.mcs) ||
1182 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1183 sband->ht_cap.cap) ||
1184 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1185 sband->ht_cap.ampdu_factor) ||
1186 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1187 sband->ht_cap.ampdu_density)))
1191 if (sband->vht_cap.vht_supported &&
1192 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1193 sizeof(sband->vht_cap.vht_mcs),
1194 &sband->vht_cap.vht_mcs) ||
1195 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1196 sband->vht_cap.cap)))
1200 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1204 for (i = 0; i < sband->n_bitrates; i++) {
1205 nl_rate = nla_nest_start(msg, i);
1209 rate = &sband->bitrates[i];
1210 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1213 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1215 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1218 nla_nest_end(msg, nl_rate);
1221 nla_nest_end(msg, nl_rates);
1227 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1228 const struct ieee80211_txrx_stypes *mgmt_stypes)
1231 struct nlattr *nl_ftypes, *nl_ifs;
1232 enum nl80211_iftype ift;
1238 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1242 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1243 nl_ftypes = nla_nest_start(msg, ift);
1247 stypes = mgmt_stypes[ift].tx;
1250 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1251 (i << 4) | IEEE80211_FTYPE_MGMT))
1256 nla_nest_end(msg, nl_ftypes);
1259 nla_nest_end(msg, nl_ifs);
1261 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1265 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1266 nl_ftypes = nla_nest_start(msg, ift);
1270 stypes = mgmt_stypes[ift].rx;
1273 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1274 (i << 4) | IEEE80211_FTYPE_MGMT))
1279 nla_nest_end(msg, nl_ftypes);
1281 nla_nest_end(msg, nl_ifs);
1286 struct nl80211_dump_wiphy_state {
1289 long split_start, band_start, chan_start, capa_start;
1293 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1294 enum nl80211_commands cmd,
1295 struct sk_buff *msg, u32 portid, u32 seq,
1296 int flags, struct nl80211_dump_wiphy_state *state)
1299 struct nlattr *nl_bands, *nl_band;
1300 struct nlattr *nl_freqs, *nl_freq;
1301 struct nlattr *nl_cmds;
1302 enum nl80211_band band;
1303 struct ieee80211_channel *chan;
1305 const struct ieee80211_txrx_stypes *mgmt_stypes =
1306 rdev->wiphy.mgmt_stypes;
1309 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1313 if (WARN_ON(!state))
1316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1317 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1318 wiphy_name(&rdev->wiphy)) ||
1319 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1320 cfg80211_rdev_list_generation))
1321 goto nla_put_failure;
1323 if (cmd != NL80211_CMD_NEW_WIPHY)
1326 switch (state->split_start) {
1328 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1329 rdev->wiphy.retry_short) ||
1330 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1331 rdev->wiphy.retry_long) ||
1332 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1333 rdev->wiphy.frag_threshold) ||
1334 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1335 rdev->wiphy.rts_threshold) ||
1336 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1337 rdev->wiphy.coverage_class) ||
1338 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1339 rdev->wiphy.max_scan_ssids) ||
1340 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1341 rdev->wiphy.max_sched_scan_ssids) ||
1342 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1343 rdev->wiphy.max_scan_ie_len) ||
1344 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1345 rdev->wiphy.max_sched_scan_ie_len) ||
1346 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1347 rdev->wiphy.max_match_sets) ||
1348 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1349 rdev->wiphy.max_sched_scan_plans) ||
1350 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1351 rdev->wiphy.max_sched_scan_plan_interval) ||
1352 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1353 rdev->wiphy.max_sched_scan_plan_iterations))
1354 goto nla_put_failure;
1356 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1357 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1358 goto nla_put_failure;
1359 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1360 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1361 goto nla_put_failure;
1362 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1363 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1364 goto nla_put_failure;
1365 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1366 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1367 goto nla_put_failure;
1368 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1369 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1370 goto nla_put_failure;
1371 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1372 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1373 goto nla_put_failure;
1374 state->split_start++;
1378 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1379 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1380 rdev->wiphy.cipher_suites))
1381 goto nla_put_failure;
1383 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1384 rdev->wiphy.max_num_pmkids))
1385 goto nla_put_failure;
1387 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1388 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1389 goto nla_put_failure;
1391 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1392 rdev->wiphy.available_antennas_tx) ||
1393 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1394 rdev->wiphy.available_antennas_rx))
1395 goto nla_put_failure;
1397 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1398 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1399 rdev->wiphy.probe_resp_offload))
1400 goto nla_put_failure;
1402 if ((rdev->wiphy.available_antennas_tx ||
1403 rdev->wiphy.available_antennas_rx) &&
1404 rdev->ops->get_antenna) {
1405 u32 tx_ant = 0, rx_ant = 0;
1408 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1410 if (nla_put_u32(msg,
1411 NL80211_ATTR_WIPHY_ANTENNA_TX,
1414 NL80211_ATTR_WIPHY_ANTENNA_RX,
1416 goto nla_put_failure;
1420 state->split_start++;
1424 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1425 rdev->wiphy.interface_modes))
1426 goto nla_put_failure;
1427 state->split_start++;
1431 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1433 goto nla_put_failure;
1435 for (band = state->band_start;
1436 band < NUM_NL80211_BANDS; band++) {
1437 struct ieee80211_supported_band *sband;
1439 sband = rdev->wiphy.bands[band];
1444 nl_band = nla_nest_start(msg, band);
1446 goto nla_put_failure;
1448 switch (state->chan_start) {
1450 if (nl80211_send_band_rateinfo(msg, sband))
1451 goto nla_put_failure;
1452 state->chan_start++;
1456 /* add frequencies */
1457 nl_freqs = nla_nest_start(
1458 msg, NL80211_BAND_ATTR_FREQS);
1460 goto nla_put_failure;
1462 for (i = state->chan_start - 1;
1463 i < sband->n_channels;
1465 nl_freq = nla_nest_start(msg, i);
1467 goto nla_put_failure;
1469 chan = &sband->channels[i];
1471 if (nl80211_msg_put_channel(
1474 goto nla_put_failure;
1476 nla_nest_end(msg, nl_freq);
1480 if (i < sband->n_channels)
1481 state->chan_start = i + 2;
1483 state->chan_start = 0;
1484 nla_nest_end(msg, nl_freqs);
1487 nla_nest_end(msg, nl_band);
1490 /* start again here */
1491 if (state->chan_start)
1496 nla_nest_end(msg, nl_bands);
1498 if (band < NUM_NL80211_BANDS)
1499 state->band_start = band + 1;
1501 state->band_start = 0;
1503 /* if bands & channels are done, continue outside */
1504 if (state->band_start == 0 && state->chan_start == 0)
1505 state->split_start++;
1509 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1511 goto nla_put_failure;
1514 #define CMD(op, n) \
1516 if (rdev->ops->op) { \
1518 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1519 goto nla_put_failure; \
1523 CMD(add_virtual_intf, NEW_INTERFACE);
1524 CMD(change_virtual_intf, SET_INTERFACE);
1525 CMD(add_key, NEW_KEY);
1526 CMD(start_ap, START_AP);
1527 CMD(add_station, NEW_STATION);
1528 CMD(add_mpath, NEW_MPATH);
1529 CMD(update_mesh_config, SET_MESH_CONFIG);
1530 CMD(change_bss, SET_BSS);
1531 CMD(auth, AUTHENTICATE);
1532 CMD(assoc, ASSOCIATE);
1533 CMD(deauth, DEAUTHENTICATE);
1534 CMD(disassoc, DISASSOCIATE);
1535 CMD(join_ibss, JOIN_IBSS);
1536 CMD(join_mesh, JOIN_MESH);
1537 CMD(set_pmksa, SET_PMKSA);
1538 CMD(del_pmksa, DEL_PMKSA);
1539 CMD(flush_pmksa, FLUSH_PMKSA);
1540 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1541 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1542 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1543 CMD(mgmt_tx, FRAME);
1544 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1545 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1547 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1548 goto nla_put_failure;
1550 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1551 rdev->ops->join_mesh) {
1553 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1554 goto nla_put_failure;
1556 CMD(set_wds_peer, SET_WDS_PEER);
1557 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1558 CMD(tdls_mgmt, TDLS_MGMT);
1559 CMD(tdls_oper, TDLS_OPER);
1561 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1562 CMD(sched_scan_start, START_SCHED_SCAN);
1563 CMD(probe_client, PROBE_CLIENT);
1564 CMD(set_noack_map, SET_NOACK_MAP);
1565 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1567 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1568 goto nla_put_failure;
1570 CMD(start_p2p_device, START_P2P_DEVICE);
1571 CMD(set_mcast_rate, SET_MCAST_RATE);
1572 #ifdef CONFIG_NL80211_TESTMODE
1573 CMD(testmode_cmd, TESTMODE);
1576 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1577 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1578 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1579 CMD(channel_switch, CHANNEL_SWITCH);
1580 CMD(set_qos_map, SET_QOS_MAP);
1581 if (rdev->wiphy.features &
1582 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1583 CMD(add_tx_ts, ADD_TX_TS);
1585 /* add into the if now */
1588 if (rdev->ops->connect || rdev->ops->auth) {
1590 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1591 goto nla_put_failure;
1594 if (rdev->ops->disconnect || rdev->ops->deauth) {
1596 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1597 goto nla_put_failure;
1600 nla_nest_end(msg, nl_cmds);
1601 state->split_start++;
1605 if (rdev->ops->remain_on_channel &&
1606 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1608 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1609 rdev->wiphy.max_remain_on_channel_duration))
1610 goto nla_put_failure;
1612 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1613 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1614 goto nla_put_failure;
1616 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1617 goto nla_put_failure;
1618 state->split_start++;
1623 if (nl80211_send_wowlan(msg, rdev, state->split))
1624 goto nla_put_failure;
1625 state->split_start++;
1629 state->split_start++;
1632 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1633 rdev->wiphy.software_iftypes))
1634 goto nla_put_failure;
1636 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1638 goto nla_put_failure;
1640 state->split_start++;
1644 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1645 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1646 rdev->wiphy.ap_sme_capa))
1647 goto nla_put_failure;
1649 features = rdev->wiphy.features;
1651 * We can only add the per-channel limit information if the
1652 * dump is split, otherwise it makes it too big. Therefore
1653 * only advertise it in that case.
1656 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1657 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1658 goto nla_put_failure;
1660 if (rdev->wiphy.ht_capa_mod_mask &&
1661 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1662 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1663 rdev->wiphy.ht_capa_mod_mask))
1664 goto nla_put_failure;
1666 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1667 rdev->wiphy.max_acl_mac_addrs &&
1668 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1669 rdev->wiphy.max_acl_mac_addrs))
1670 goto nla_put_failure;
1673 * Any information below this point is only available to
1674 * applications that can deal with it being split. This
1675 * helps ensure that newly added capabilities don't break
1676 * older tools by overrunning their buffers.
1678 * We still increment split_start so that in the split
1679 * case we'll continue with more data in the next round,
1680 * but break unconditionally so unsplit data stops here.
1682 state->split_start++;
1685 if (rdev->wiphy.extended_capabilities &&
1686 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1687 rdev->wiphy.extended_capabilities_len,
1688 rdev->wiphy.extended_capabilities) ||
1689 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1690 rdev->wiphy.extended_capabilities_len,
1691 rdev->wiphy.extended_capabilities_mask)))
1692 goto nla_put_failure;
1694 if (rdev->wiphy.vht_capa_mod_mask &&
1695 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1696 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1697 rdev->wiphy.vht_capa_mod_mask))
1698 goto nla_put_failure;
1700 state->split_start++;
1703 if (nl80211_send_coalesce(msg, rdev))
1704 goto nla_put_failure;
1706 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1707 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1708 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1709 goto nla_put_failure;
1711 if (rdev->wiphy.max_ap_assoc_sta &&
1712 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1713 rdev->wiphy.max_ap_assoc_sta))
1714 goto nla_put_failure;
1716 state->split_start++;
1719 if (rdev->wiphy.n_vendor_commands) {
1720 const struct nl80211_vendor_cmd_info *info;
1721 struct nlattr *nested;
1723 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1725 goto nla_put_failure;
1727 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1728 info = &rdev->wiphy.vendor_commands[i].info;
1729 if (nla_put(msg, i + 1, sizeof(*info), info))
1730 goto nla_put_failure;
1732 nla_nest_end(msg, nested);
1735 if (rdev->wiphy.n_vendor_events) {
1736 const struct nl80211_vendor_cmd_info *info;
1737 struct nlattr *nested;
1739 nested = nla_nest_start(msg,
1740 NL80211_ATTR_VENDOR_EVENTS);
1742 goto nla_put_failure;
1744 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1745 info = &rdev->wiphy.vendor_events[i];
1746 if (nla_put(msg, i + 1, sizeof(*info), info))
1747 goto nla_put_failure;
1749 nla_nest_end(msg, nested);
1751 state->split_start++;
1754 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1755 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1756 rdev->wiphy.max_num_csa_counters))
1757 goto nla_put_failure;
1759 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1760 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1761 goto nla_put_failure;
1763 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1764 sizeof(rdev->wiphy.ext_features),
1765 rdev->wiphy.ext_features))
1766 goto nla_put_failure;
1768 if (rdev->wiphy.bss_select_support) {
1769 struct nlattr *nested;
1770 u32 bss_select_support = rdev->wiphy.bss_select_support;
1772 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1774 goto nla_put_failure;
1777 while (bss_select_support) {
1778 if ((bss_select_support & 1) &&
1779 nla_put_flag(msg, i))
1780 goto nla_put_failure;
1782 bss_select_support >>= 1;
1784 nla_nest_end(msg, nested);
1787 state->split_start++;
1790 if (rdev->wiphy.num_iftype_ext_capab &&
1791 rdev->wiphy.iftype_ext_capab) {
1792 struct nlattr *nested_ext_capab, *nested;
1794 nested = nla_nest_start(msg,
1795 NL80211_ATTR_IFTYPE_EXT_CAPA);
1797 goto nla_put_failure;
1799 for (i = state->capa_start;
1800 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1801 const struct wiphy_iftype_ext_capab *capab;
1803 capab = &rdev->wiphy.iftype_ext_capab[i];
1805 nested_ext_capab = nla_nest_start(msg, i);
1806 if (!nested_ext_capab ||
1807 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1809 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1810 capab->extended_capabilities_len,
1811 capab->extended_capabilities) ||
1812 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1813 capab->extended_capabilities_len,
1814 capab->extended_capabilities_mask))
1815 goto nla_put_failure;
1817 nla_nest_end(msg, nested_ext_capab);
1821 nla_nest_end(msg, nested);
1822 if (i < rdev->wiphy.num_iftype_ext_capab) {
1823 state->capa_start = i + 1;
1829 state->split_start = 0;
1833 genlmsg_end(msg, hdr);
1837 genlmsg_cancel(msg, hdr);
1841 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1842 struct netlink_callback *cb,
1843 struct nl80211_dump_wiphy_state *state)
1845 struct nlattr **tb = nl80211_fam.attrbuf;
1846 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1847 tb, nl80211_fam.maxattr, nl80211_policy);
1848 /* ignore parse errors for backward compatibility */
1852 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1853 if (tb[NL80211_ATTR_WIPHY])
1854 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1855 if (tb[NL80211_ATTR_WDEV])
1856 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1857 if (tb[NL80211_ATTR_IFINDEX]) {
1858 struct net_device *netdev;
1859 struct cfg80211_registered_device *rdev;
1860 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1862 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1865 if (netdev->ieee80211_ptr) {
1866 rdev = wiphy_to_rdev(
1867 netdev->ieee80211_ptr->wiphy);
1868 state->filter_wiphy = rdev->wiphy_idx;
1875 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1878 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1879 struct cfg80211_registered_device *rdev;
1883 state = kzalloc(sizeof(*state), GFP_KERNEL);
1888 state->filter_wiphy = -1;
1889 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1895 cb->args[0] = (long)state;
1898 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1899 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1901 if (++idx <= state->start)
1903 if (state->filter_wiphy != -1 &&
1904 state->filter_wiphy != rdev->wiphy_idx)
1906 /* attempt to fit multiple wiphy data chunks into the skb */
1908 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1910 NETLINK_CB(cb->skb).portid,
1912 NLM_F_MULTI, state);
1915 * If sending the wiphy data didn't fit (ENOBUFS
1916 * or EMSGSIZE returned), this SKB is still
1917 * empty (so it's not too big because another
1918 * wiphy dataset is already in the skb) and
1919 * we've not tried to adjust the dump allocation
1920 * yet ... then adjust the alloc size to be
1921 * bigger, and return 1 but with the empty skb.
1922 * This results in an empty message being RX'ed
1923 * in userspace, but that is ignored.
1925 * We can then retry with the larger buffer.
1927 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1928 !skb->len && !state->split &&
1929 cb->min_dump_alloc < 4096) {
1930 cb->min_dump_alloc = 4096;
1931 state->split_start = 0;
1938 } while (state->split_start > 0);
1948 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1950 kfree((void *)cb->args[0]);
1954 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1956 struct sk_buff *msg;
1957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1958 struct nl80211_dump_wiphy_state state = {};
1960 msg = nlmsg_new(4096, GFP_KERNEL);
1964 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1965 info->snd_portid, info->snd_seq, 0,
1971 return genlmsg_reply(msg, info);
1974 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1975 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1976 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1977 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1978 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1979 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1982 static int parse_txq_params(struct nlattr *tb[],
1983 struct ieee80211_txq_params *txq_params)
1985 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1986 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1987 !tb[NL80211_TXQ_ATTR_AIFS])
1990 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1991 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1992 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1993 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1994 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1996 if (txq_params->ac >= NL80211_NUM_ACS)
2002 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2005 * You can only set the channel explicitly for WDS interfaces,
2006 * all others have their channel managed via their respective
2007 * "establish a connection" command (connect, join, ...)
2009 * For AP/GO and mesh mode, the channel can be set with the
2010 * channel userspace API, but is only stored and passed to the
2011 * low-level driver when the AP starts or the mesh is joined.
2012 * This is for backward compatibility, userspace can also give
2013 * the channel in the start-ap or join-mesh commands instead.
2015 * Monitors are special as they are normally slaved to
2016 * whatever else is going on, so they have their own special
2017 * operation to set the monitor channel if possible.
2020 wdev->iftype == NL80211_IFTYPE_AP ||
2021 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
2022 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2023 wdev->iftype == NL80211_IFTYPE_P2P_GO;
2026 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2027 struct genl_info *info,
2028 struct cfg80211_chan_def *chandef)
2032 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2035 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2037 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
2038 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2039 chandef->center_freq1 = control_freq;
2040 chandef->center_freq2 = 0;
2042 /* Primary channel not allowed */
2043 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2046 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2047 enum nl80211_channel_type chantype;
2049 chantype = nla_get_u32(
2050 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2053 case NL80211_CHAN_NO_HT:
2054 case NL80211_CHAN_HT20:
2055 case NL80211_CHAN_HT40PLUS:
2056 case NL80211_CHAN_HT40MINUS:
2057 cfg80211_chandef_create(chandef, chandef->chan,
2063 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2065 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2066 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2067 chandef->center_freq1 =
2069 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2070 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2071 chandef->center_freq2 =
2073 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2076 if (!cfg80211_chandef_valid(chandef))
2079 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2080 IEEE80211_CHAN_DISABLED))
2083 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2084 chandef->width == NL80211_CHAN_WIDTH_10) &&
2085 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2091 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2092 struct net_device *dev,
2093 struct genl_info *info)
2095 struct cfg80211_chan_def chandef;
2097 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2098 struct wireless_dev *wdev = NULL;
2101 wdev = dev->ieee80211_ptr;
2102 if (!nl80211_can_set_dev_channel(wdev))
2105 iftype = wdev->iftype;
2107 result = nl80211_parse_chandef(rdev, info, &chandef);
2112 case NL80211_IFTYPE_AP:
2113 case NL80211_IFTYPE_P2P_GO:
2114 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2119 if (wdev->beacon_interval) {
2120 if (!dev || !rdev->ops->set_ap_chanwidth ||
2121 !(rdev->wiphy.features &
2122 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2127 /* Only allow dynamic channel width changes */
2128 if (chandef.chan != wdev->preset_chandef.chan) {
2132 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2136 wdev->preset_chandef = chandef;
2139 case NL80211_IFTYPE_MESH_POINT:
2140 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2142 case NL80211_IFTYPE_MONITOR:
2143 result = cfg80211_set_monitor_channel(rdev, &chandef);
2152 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2155 struct net_device *netdev = info->user_ptr[1];
2157 return __nl80211_set_channel(rdev, netdev, info);
2160 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2163 struct net_device *dev = info->user_ptr[1];
2164 struct wireless_dev *wdev = dev->ieee80211_ptr;
2167 if (!info->attrs[NL80211_ATTR_MAC])
2170 if (netif_running(dev))
2173 if (!rdev->ops->set_wds_peer)
2176 if (wdev->iftype != NL80211_IFTYPE_WDS)
2179 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2180 return rdev_set_wds_peer(rdev, dev, bssid);
2183 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2185 struct cfg80211_registered_device *rdev;
2186 struct net_device *netdev = NULL;
2187 struct wireless_dev *wdev;
2188 int result = 0, rem_txq_params = 0;
2189 struct nlattr *nl_txq_params;
2191 u8 retry_short = 0, retry_long = 0;
2192 u32 frag_threshold = 0, rts_threshold = 0;
2193 u8 coverage_class = 0;
2198 * Try to find the wiphy and netdev. Normally this
2199 * function shouldn't need the netdev, but this is
2200 * done for backward compatibility -- previously
2201 * setting the channel was done per wiphy, but now
2202 * it is per netdev. Previous userland like hostapd
2203 * also passed a netdev to set_wiphy, so that it is
2204 * possible to let that go to the right netdev!
2207 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2208 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2210 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2211 if (netdev && netdev->ieee80211_ptr)
2212 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2218 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2221 return PTR_ERR(rdev);
2226 wdev = netdev->ieee80211_ptr;
2229 * end workaround code, by now the rdev is available
2230 * and locked, and wdev may or may not be NULL.
2233 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2234 result = cfg80211_dev_rename(
2235 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2240 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2241 struct ieee80211_txq_params txq_params;
2242 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2244 if (!rdev->ops->set_txq_params)
2250 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2251 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2254 if (!netif_running(netdev))
2257 nla_for_each_nested(nl_txq_params,
2258 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2260 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2261 nla_data(nl_txq_params),
2262 nla_len(nl_txq_params),
2266 result = parse_txq_params(tb, &txq_params);
2270 result = rdev_set_txq_params(rdev, netdev,
2277 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2278 result = __nl80211_set_channel(
2280 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2286 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2287 struct wireless_dev *txp_wdev = wdev;
2288 enum nl80211_tx_power_setting type;
2291 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2294 if (!rdev->ops->set_tx_power)
2297 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2298 type = nla_get_u32(info->attrs[idx]);
2300 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2301 (type != NL80211_TX_POWER_AUTOMATIC))
2304 if (type != NL80211_TX_POWER_AUTOMATIC) {
2305 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2306 mbm = nla_get_u32(info->attrs[idx]);
2309 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2314 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2315 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2318 if ((!rdev->wiphy.available_antennas_tx &&
2319 !rdev->wiphy.available_antennas_rx) ||
2320 !rdev->ops->set_antenna)
2323 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2324 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2326 /* reject antenna configurations which don't match the
2327 * available antenna masks, except for the "all" mask */
2328 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2329 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2332 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2333 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2335 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2342 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2343 retry_short = nla_get_u8(
2344 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2345 if (retry_short == 0)
2348 changed |= WIPHY_PARAM_RETRY_SHORT;
2351 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2352 retry_long = nla_get_u8(
2353 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2354 if (retry_long == 0)
2357 changed |= WIPHY_PARAM_RETRY_LONG;
2360 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2361 frag_threshold = nla_get_u32(
2362 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2363 if (frag_threshold < 256)
2366 if (frag_threshold != (u32) -1) {
2368 * Fragments (apart from the last one) are required to
2369 * have even length. Make the fragmentation code
2370 * simpler by stripping LSB should someone try to use
2371 * odd threshold value.
2373 frag_threshold &= ~0x1;
2375 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2378 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2379 rts_threshold = nla_get_u32(
2380 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2381 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2384 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2385 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2388 coverage_class = nla_get_u8(
2389 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2390 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2393 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2394 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2397 changed |= WIPHY_PARAM_DYN_ACK;
2401 u8 old_retry_short, old_retry_long;
2402 u32 old_frag_threshold, old_rts_threshold;
2403 u8 old_coverage_class;
2405 if (!rdev->ops->set_wiphy_params)
2408 old_retry_short = rdev->wiphy.retry_short;
2409 old_retry_long = rdev->wiphy.retry_long;
2410 old_frag_threshold = rdev->wiphy.frag_threshold;
2411 old_rts_threshold = rdev->wiphy.rts_threshold;
2412 old_coverage_class = rdev->wiphy.coverage_class;
2414 if (changed & WIPHY_PARAM_RETRY_SHORT)
2415 rdev->wiphy.retry_short = retry_short;
2416 if (changed & WIPHY_PARAM_RETRY_LONG)
2417 rdev->wiphy.retry_long = retry_long;
2418 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2419 rdev->wiphy.frag_threshold = frag_threshold;
2420 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2421 rdev->wiphy.rts_threshold = rts_threshold;
2422 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2423 rdev->wiphy.coverage_class = coverage_class;
2425 result = rdev_set_wiphy_params(rdev, changed);
2427 rdev->wiphy.retry_short = old_retry_short;
2428 rdev->wiphy.retry_long = old_retry_long;
2429 rdev->wiphy.frag_threshold = old_frag_threshold;
2430 rdev->wiphy.rts_threshold = old_rts_threshold;
2431 rdev->wiphy.coverage_class = old_coverage_class;
2438 static inline u64 wdev_id(struct wireless_dev *wdev)
2440 return (u64)wdev->identifier |
2441 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2444 static int nl80211_send_chandef(struct sk_buff *msg,
2445 const struct cfg80211_chan_def *chandef)
2447 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2451 chandef->chan->center_freq))
2453 switch (chandef->width) {
2454 case NL80211_CHAN_WIDTH_20_NOHT:
2455 case NL80211_CHAN_WIDTH_20:
2456 case NL80211_CHAN_WIDTH_40:
2457 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2458 cfg80211_get_chandef_type(chandef)))
2464 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2466 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2468 if (chandef->center_freq2 &&
2469 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2474 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2475 struct cfg80211_registered_device *rdev,
2476 struct wireless_dev *wdev, bool removal)
2478 struct net_device *dev = wdev->netdev;
2479 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2483 cmd = NL80211_CMD_DEL_INTERFACE;
2485 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2490 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2491 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2492 goto nla_put_failure;
2494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2495 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2496 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2497 NL80211_ATTR_PAD) ||
2498 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2499 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2500 rdev->devlist_generation ^
2501 (cfg80211_rdev_list_generation << 2)))
2502 goto nla_put_failure;
2504 if (rdev->ops->get_channel) {
2506 struct cfg80211_chan_def chandef;
2508 ret = rdev_get_channel(rdev, wdev, &chandef);
2510 if (nl80211_send_chandef(msg, &chandef))
2511 goto nla_put_failure;
2515 if (rdev->ops->get_tx_power) {
2518 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2520 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2522 goto nla_put_failure;
2525 if (wdev->ssid_len) {
2526 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2527 goto nla_put_failure;
2530 genlmsg_end(msg, hdr);
2534 genlmsg_cancel(msg, hdr);
2538 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2542 int wp_start = cb->args[0];
2543 int if_start = cb->args[1];
2544 int filter_wiphy = -1;
2545 struct cfg80211_registered_device *rdev;
2546 struct wireless_dev *wdev;
2550 struct nl80211_dump_wiphy_state state = {
2555 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2559 filter_wiphy = state.filter_wiphy;
2562 * if filtering, set cb->args[2] to +1 since 0 is the default
2563 * value needed to determine that parsing is necessary.
2565 if (filter_wiphy >= 0)
2566 cb->args[2] = filter_wiphy + 1;
2569 } else if (cb->args[2] > 0) {
2570 filter_wiphy = cb->args[2] - 1;
2573 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2574 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2576 if (wp_idx < wp_start) {
2581 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2586 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
2587 if (if_idx < if_start) {
2591 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2592 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2593 rdev, wdev, false) < 0) {
2604 cb->args[0] = wp_idx;
2605 cb->args[1] = if_idx;
2610 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2612 struct sk_buff *msg;
2613 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2614 struct wireless_dev *wdev = info->user_ptr[1];
2616 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2620 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2621 rdev, wdev, false) < 0) {
2626 return genlmsg_reply(msg, info);
2629 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2630 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2631 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2632 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2633 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2634 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2635 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2638 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2640 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2648 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2649 nla, mntr_flags_policy))
2652 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2654 *mntrflags |= (1<<flag);
2659 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2660 struct net_device *netdev, u8 use_4addr,
2661 enum nl80211_iftype iftype)
2664 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2670 case NL80211_IFTYPE_AP_VLAN:
2671 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2674 case NL80211_IFTYPE_STATION:
2675 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2685 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2688 struct vif_params params;
2690 enum nl80211_iftype otype, ntype;
2691 struct net_device *dev = info->user_ptr[1];
2692 u32 _flags, *flags = NULL;
2693 bool change = false;
2695 memset(¶ms, 0, sizeof(params));
2697 otype = ntype = dev->ieee80211_ptr->iftype;
2699 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2700 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2703 if (ntype > NL80211_IFTYPE_MAX)
2707 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2708 struct wireless_dev *wdev = dev->ieee80211_ptr;
2710 if (ntype != NL80211_IFTYPE_MESH_POINT)
2712 if (netif_running(dev))
2716 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2717 IEEE80211_MAX_MESH_ID_LEN);
2718 wdev->mesh_id_up_len =
2719 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2720 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2721 wdev->mesh_id_up_len);
2725 if (info->attrs[NL80211_ATTR_4ADDR]) {
2726 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2728 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2732 params.use_4addr = -1;
2735 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2736 if (ntype != NL80211_IFTYPE_MONITOR)
2738 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2747 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2748 const u8 *mumimo_groups;
2749 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2751 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2755 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2757 /* bits 0 and 63 are reserved and must be zero */
2758 if ((mumimo_groups[0] & BIT(7)) ||
2759 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(0)))
2762 memcpy(params.vht_mumimo_groups, mumimo_groups,
2763 VHT_MUMIMO_GROUPS_DATA_LEN);
2767 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2768 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2770 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2773 nla_memcpy(params.macaddr,
2774 info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR],
2779 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2780 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2784 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2788 if (!err && params.use_4addr != -1)
2789 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2794 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2797 struct vif_params params;
2798 struct wireless_dev *wdev;
2799 struct sk_buff *msg;
2801 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2804 /* to avoid failing a new interface creation due to pending removal */
2805 cfg80211_destroy_ifaces(rdev);
2807 memset(¶ms, 0, sizeof(params));
2809 if (!info->attrs[NL80211_ATTR_IFNAME])
2812 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2813 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2814 if (type > NL80211_IFTYPE_MAX)
2818 if (!rdev->ops->add_virtual_intf ||
2819 !(rdev->wiphy.interface_modes & (1 << type)))
2822 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2823 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2824 info->attrs[NL80211_ATTR_MAC]) {
2825 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2827 if (!is_valid_ether_addr(params.macaddr))
2828 return -EADDRNOTAVAIL;
2831 if (info->attrs[NL80211_ATTR_4ADDR]) {
2832 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2833 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2838 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2839 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2842 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2843 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2846 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2850 wdev = rdev_add_virtual_intf(rdev,
2851 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2852 NET_NAME_USER, type, err ? NULL : &flags,
2854 if (WARN_ON(!wdev)) {
2857 } else if (IS_ERR(wdev)) {
2859 return PTR_ERR(wdev);
2862 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2863 wdev->owner_nlportid = info->snd_portid;
2866 case NL80211_IFTYPE_MESH_POINT:
2867 if (!info->attrs[NL80211_ATTR_MESH_ID])
2870 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2871 IEEE80211_MAX_MESH_ID_LEN);
2872 wdev->mesh_id_up_len =
2873 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2874 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2875 wdev->mesh_id_up_len);
2878 case NL80211_IFTYPE_P2P_DEVICE:
2880 * P2P Device doesn't have a netdev, so doesn't go
2881 * through the netdev notifier and must be added here
2883 mutex_init(&wdev->mtx);
2884 INIT_LIST_HEAD(&wdev->event_list);
2885 spin_lock_init(&wdev->event_lock);
2886 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2887 spin_lock_init(&wdev->mgmt_registrations_lock);
2889 wdev->identifier = ++rdev->wdev_id;
2890 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
2891 rdev->devlist_generation++;
2897 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2898 rdev, wdev, false) < 0) {
2904 * For wdevs which have no associated netdev object (e.g. of type
2905 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2906 * For all other types, the event will be generated from the
2910 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
2912 return genlmsg_reply(msg, info);
2915 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2917 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2918 struct wireless_dev *wdev = info->user_ptr[1];
2920 if (!rdev->ops->del_virtual_intf)
2924 * If we remove a wireless device without a netdev then clear
2925 * user_ptr[1] so that nl80211_post_doit won't dereference it
2926 * to check if it needs to do dev_put(). Otherwise it crashes
2927 * since the wdev has been freed, unlike with a netdev where
2928 * we need the dev_put() for the netdev to really be freed.
2931 info->user_ptr[1] = NULL;
2933 return rdev_del_virtual_intf(rdev, wdev);
2936 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2939 struct net_device *dev = info->user_ptr[1];
2942 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2945 if (!rdev->ops->set_noack_map)
2948 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2950 return rdev_set_noack_map(rdev, dev, noack_map);
2953 struct get_key_cookie {
2954 struct sk_buff *msg;
2959 static void get_key_callback(void *c, struct key_params *params)
2962 struct get_key_cookie *cookie = c;
2965 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2966 params->key_len, params->key)) ||
2968 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2969 params->seq_len, params->seq)) ||
2971 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2973 goto nla_put_failure;
2975 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2977 goto nla_put_failure;
2980 nla_put(cookie->msg, NL80211_KEY_DATA,
2981 params->key_len, params->key)) ||
2983 nla_put(cookie->msg, NL80211_KEY_SEQ,
2984 params->seq_len, params->seq)) ||
2986 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2988 goto nla_put_failure;
2990 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2991 goto nla_put_failure;
2993 nla_nest_end(cookie->msg, key);
3000 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3004 struct net_device *dev = info->user_ptr[1];
3006 const u8 *mac_addr = NULL;
3008 struct get_key_cookie cookie = {
3012 struct sk_buff *msg;
3014 if (info->attrs[NL80211_ATTR_KEY_IDX])
3015 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3020 if (info->attrs[NL80211_ATTR_MAC])
3021 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3023 pairwise = !!mac_addr;
3024 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3025 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
3027 if (kt >= NUM_NL80211_KEYTYPES)
3029 if (kt != NL80211_KEYTYPE_GROUP &&
3030 kt != NL80211_KEYTYPE_PAIRWISE)
3032 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3035 if (!rdev->ops->get_key)
3038 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3041 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3045 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3046 NL80211_CMD_NEW_KEY);
3048 goto nla_put_failure;
3051 cookie.idx = key_idx;
3053 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3054 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3055 goto nla_put_failure;
3057 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3058 goto nla_put_failure;
3060 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3067 goto nla_put_failure;
3069 genlmsg_end(msg, hdr);
3070 return genlmsg_reply(msg, info);
3079 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3082 struct key_parse key;
3084 struct net_device *dev = info->user_ptr[1];
3086 err = nl80211_parse_key(info, &key);
3093 /* only support setting default key */
3094 if (!key.def && !key.defmgmt)
3097 wdev_lock(dev->ieee80211_ptr);
3100 if (!rdev->ops->set_default_key) {
3105 err = nl80211_key_allowed(dev->ieee80211_ptr);
3109 err = rdev_set_default_key(rdev, dev, key.idx,
3110 key.def_uni, key.def_multi);
3115 #ifdef CONFIG_CFG80211_WEXT
3116 dev->ieee80211_ptr->wext.default_key = key.idx;
3119 if (key.def_uni || !key.def_multi) {
3124 if (!rdev->ops->set_default_mgmt_key) {
3129 err = nl80211_key_allowed(dev->ieee80211_ptr);
3133 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3137 #ifdef CONFIG_CFG80211_WEXT
3138 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3143 wdev_unlock(dev->ieee80211_ptr);
3148 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3150 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3152 struct net_device *dev = info->user_ptr[1];
3153 struct key_parse key;
3154 const u8 *mac_addr = NULL;
3156 err = nl80211_parse_key(info, &key);
3163 if (info->attrs[NL80211_ATTR_MAC])
3164 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3166 if (key.type == -1) {
3168 key.type = NL80211_KEYTYPE_PAIRWISE;
3170 key.type = NL80211_KEYTYPE_GROUP;
3174 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3175 key.type != NL80211_KEYTYPE_GROUP)
3178 if (!rdev->ops->add_key)
3181 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3182 key.type == NL80211_KEYTYPE_PAIRWISE,
3186 wdev_lock(dev->ieee80211_ptr);
3187 err = nl80211_key_allowed(dev->ieee80211_ptr);
3189 err = rdev_add_key(rdev, dev, key.idx,
3190 key.type == NL80211_KEYTYPE_PAIRWISE,
3192 wdev_unlock(dev->ieee80211_ptr);
3197 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3201 struct net_device *dev = info->user_ptr[1];
3202 u8 *mac_addr = NULL;
3203 struct key_parse key;
3205 err = nl80211_parse_key(info, &key);
3209 if (info->attrs[NL80211_ATTR_MAC])
3210 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3212 if (key.type == -1) {
3214 key.type = NL80211_KEYTYPE_PAIRWISE;
3216 key.type = NL80211_KEYTYPE_GROUP;
3220 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3221 key.type != NL80211_KEYTYPE_GROUP)
3224 if (!rdev->ops->del_key)
3227 wdev_lock(dev->ieee80211_ptr);
3228 err = nl80211_key_allowed(dev->ieee80211_ptr);
3230 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3231 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3235 err = rdev_del_key(rdev, dev, key.idx,
3236 key.type == NL80211_KEYTYPE_PAIRWISE,
3239 #ifdef CONFIG_CFG80211_WEXT
3241 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3242 dev->ieee80211_ptr->wext.default_key = -1;
3243 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3244 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3247 wdev_unlock(dev->ieee80211_ptr);
3252 /* This function returns an error or the number of nested attributes */
3253 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3255 struct nlattr *attr;
3256 int n_entries = 0, tmp;
3258 nla_for_each_nested(attr, nl_attr, tmp) {
3259 if (nla_len(attr) != ETH_ALEN)
3269 * This function parses ACL information and allocates memory for ACL data.
3270 * On successful return, the calling function is responsible to free the
3271 * ACL buffer returned by this function.
3273 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3274 struct genl_info *info)
3276 enum nl80211_acl_policy acl_policy;
3277 struct nlattr *attr;
3278 struct cfg80211_acl_data *acl;
3279 int i = 0, n_entries, tmp;
3281 if (!wiphy->max_acl_mac_addrs)
3282 return ERR_PTR(-EOPNOTSUPP);
3284 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3285 return ERR_PTR(-EINVAL);
3287 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3288 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3289 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3290 return ERR_PTR(-EINVAL);
3292 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3293 return ERR_PTR(-EINVAL);
3295 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3297 return ERR_PTR(n_entries);
3299 if (n_entries > wiphy->max_acl_mac_addrs)
3300 return ERR_PTR(-ENOTSUPP);
3302 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3305 return ERR_PTR(-ENOMEM);
3307 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3308 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3312 acl->n_acl_entries = n_entries;
3313 acl->acl_policy = acl_policy;
3318 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3321 struct net_device *dev = info->user_ptr[1];
3322 struct cfg80211_acl_data *acl;
3325 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3326 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3329 if (!dev->ieee80211_ptr->beacon_interval)
3332 acl = parse_acl_data(&rdev->wiphy, info);
3334 return PTR_ERR(acl);
3336 err = rdev_set_mac_acl(rdev, dev, acl);
3343 static int nl80211_parse_beacon(struct nlattr *attrs[],
3344 struct cfg80211_beacon_data *bcn)
3346 bool haveinfo = false;
3348 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3349 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3350 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3351 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3354 memset(bcn, 0, sizeof(*bcn));
3356 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3357 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3358 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3364 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3365 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3366 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3373 if (attrs[NL80211_ATTR_IE]) {
3374 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3375 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3378 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3379 bcn->proberesp_ies =
3380 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3381 bcn->proberesp_ies_len =
3382 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3385 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3386 bcn->assocresp_ies =
3387 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3388 bcn->assocresp_ies_len =
3389 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3392 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3393 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3394 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3400 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3401 struct cfg80211_ap_settings *params)
3403 struct wireless_dev *wdev;
3406 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
3407 if (wdev->iftype != NL80211_IFTYPE_AP &&
3408 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3411 if (!wdev->preset_chandef.chan)
3414 params->chandef = wdev->preset_chandef;
3422 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3423 enum nl80211_auth_type auth_type,
3424 enum nl80211_commands cmd)
3426 if (auth_type > NL80211_AUTHTYPE_MAX)
3430 case NL80211_CMD_AUTHENTICATE:
3431 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3432 auth_type == NL80211_AUTHTYPE_SAE)
3435 case NL80211_CMD_CONNECT:
3436 case NL80211_CMD_START_AP:
3437 /* SAE not supported yet */
3438 if (auth_type == NL80211_AUTHTYPE_SAE)
3446 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3449 struct net_device *dev = info->user_ptr[1];
3450 struct wireless_dev *wdev = dev->ieee80211_ptr;
3451 struct cfg80211_ap_settings params;
3454 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3455 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3458 if (!rdev->ops->start_ap)
3461 if (wdev->beacon_interval)
3464 memset(¶ms, 0, sizeof(params));
3466 /* these are required for START_AP */
3467 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3468 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3469 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3472 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3476 params.beacon_interval =
3477 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3478 params.dtim_period =
3479 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3481 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3486 * In theory, some of these attributes should be required here
3487 * but since they were not used when the command was originally
3488 * added, keep them optional for old user space programs to let
3489 * them continue to work with drivers that do not need the
3490 * additional information -- drivers must check!
3492 if (info->attrs[NL80211_ATTR_SSID]) {
3493 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3495 nla_len(info->attrs[NL80211_ATTR_SSID]);
3496 if (params.ssid_len == 0 ||
3497 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3501 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3502 params.hidden_ssid = nla_get_u32(
3503 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3504 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3505 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3506 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3510 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3512 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3513 params.auth_type = nla_get_u32(
3514 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3515 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3516 NL80211_CMD_START_AP))
3519 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3521 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3522 NL80211_MAX_NR_CIPHER_SUITES);
3526 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3527 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3529 params.inactivity_timeout = nla_get_u16(
3530 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3533 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3534 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3536 params.p2p_ctwindow =
3537 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3538 if (params.p2p_ctwindow > 127)
3540 if (params.p2p_ctwindow != 0 &&
3541 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3545 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3548 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3550 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3553 params.p2p_opp_ps = tmp;
3554 if (params.p2p_opp_ps != 0 &&
3555 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3559 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3560 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3563 } else if (wdev->preset_chandef.chan) {
3564 params.chandef = wdev->preset_chandef;
3565 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3568 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3572 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3574 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3575 switch (params.smps_mode) {
3576 case NL80211_SMPS_OFF:
3578 case NL80211_SMPS_STATIC:
3579 if (!(rdev->wiphy.features &
3580 NL80211_FEATURE_STATIC_SMPS))
3583 case NL80211_SMPS_DYNAMIC:
3584 if (!(rdev->wiphy.features &
3585 NL80211_FEATURE_DYNAMIC_SMPS))
3592 params.smps_mode = NL80211_SMPS_OFF;
3595 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3596 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
3599 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3600 params.acl = parse_acl_data(&rdev->wiphy, info);
3601 if (IS_ERR(params.acl))
3602 return PTR_ERR(params.acl);
3606 err = rdev_start_ap(rdev, dev, ¶ms);
3608 wdev->preset_chandef = params.chandef;
3609 wdev->beacon_interval = params.beacon_interval;
3610 wdev->chandef = params.chandef;
3611 wdev->ssid_len = params.ssid_len;
3612 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3621 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3624 struct net_device *dev = info->user_ptr[1];
3625 struct wireless_dev *wdev = dev->ieee80211_ptr;
3626 struct cfg80211_beacon_data params;
3629 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3630 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3633 if (!rdev->ops->change_beacon)
3636 if (!wdev->beacon_interval)
3639 err = nl80211_parse_beacon(info->attrs, ¶ms);
3644 err = rdev_change_beacon(rdev, dev, ¶ms);
3650 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3652 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3653 struct net_device *dev = info->user_ptr[1];
3655 return cfg80211_stop_ap(rdev, dev, false);
3658 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3659 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3660 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3661 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3662 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3663 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3664 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3667 static int parse_station_flags(struct genl_info *info,
3668 enum nl80211_iftype iftype,
3669 struct station_parameters *params)
3671 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3676 * Try parsing the new attribute first so userspace
3677 * can specify both for older kernels.
3679 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3681 struct nl80211_sta_flag_update *sta_flags;
3683 sta_flags = nla_data(nla);
3684 params->sta_flags_mask = sta_flags->mask;
3685 params->sta_flags_set = sta_flags->set;
3686 params->sta_flags_set &= params->sta_flags_mask;
3687 if ((params->sta_flags_mask |
3688 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3693 /* if present, parse the old attribute */
3695 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3699 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3700 nla, sta_flags_policy))
3704 * Only allow certain flags for interface types so that
3705 * other attributes are silently ignored. Remember that
3706 * this is backward compatibility code with old userspace
3707 * and shouldn't be hit in other cases anyway.
3710 case NL80211_IFTYPE_AP:
3711 case NL80211_IFTYPE_AP_VLAN:
3712 case NL80211_IFTYPE_P2P_GO:
3713 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3714 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3715 BIT(NL80211_STA_FLAG_WME) |
3716 BIT(NL80211_STA_FLAG_MFP);
3718 case NL80211_IFTYPE_P2P_CLIENT:
3719 case NL80211_IFTYPE_STATION:
3720 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3721 BIT(NL80211_STA_FLAG_TDLS_PEER);
3723 case NL80211_IFTYPE_MESH_POINT:
3724 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3725 BIT(NL80211_STA_FLAG_MFP) |
3726 BIT(NL80211_STA_FLAG_AUTHORIZED);
3731 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3733 params->sta_flags_set |= (1<<flag);
3735 /* no longer support new API additions in old API */
3736 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3744 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3747 struct nlattr *rate;
3750 enum nl80211_attrs rate_flg;
3752 rate = nla_nest_start(msg, attr);
3756 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3757 bitrate = cfg80211_calculate_bitrate(info);
3758 /* report 16-bit bitrate only if we can */
3759 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3761 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3763 if (bitrate_compat > 0 &&
3764 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3768 case RATE_INFO_BW_5:
3769 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3771 case RATE_INFO_BW_10:
3772 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3777 case RATE_INFO_BW_20:
3780 case RATE_INFO_BW_40:
3781 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3783 case RATE_INFO_BW_80:
3784 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3786 case RATE_INFO_BW_160:
3787 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3791 if (rate_flg && nla_put_flag(msg, rate_flg))
3794 if (info->flags & RATE_INFO_FLAGS_MCS) {
3795 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3797 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3798 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3800 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3801 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3803 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3805 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3806 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3810 nla_nest_end(msg, rate);
3814 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3823 attr = nla_nest_start(msg, id);
3827 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3828 if (!(mask & BIT(i)))
3831 if (nla_put_u8(msg, i, signal[i]))
3835 nla_nest_end(msg, attr);
3840 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3842 struct cfg80211_registered_device *rdev,
3843 struct net_device *dev,
3844 const u8 *mac_addr, struct station_info *sinfo)
3847 struct nlattr *sinfoattr, *bss_param;
3849 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3853 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3854 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3855 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3856 goto nla_put_failure;
3858 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3860 goto nla_put_failure;
3862 #define PUT_SINFO(attr, memb, type) do { \
3863 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
3864 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3865 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3867 goto nla_put_failure; \
3869 #define PUT_SINFO_U64(attr, memb) do { \
3870 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
3871 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
3872 sinfo->memb, NL80211_STA_INFO_PAD)) \
3873 goto nla_put_failure; \
3876 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3877 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3879 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3880 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
3881 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3882 (u32)sinfo->rx_bytes))
3883 goto nla_put_failure;
3885 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3886 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
3887 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3888 (u32)sinfo->tx_bytes))
3889 goto nla_put_failure;
3891 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
3892 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
3893 PUT_SINFO(LLID, llid, u16);
3894 PUT_SINFO(PLID, plid, u16);
3895 PUT_SINFO(PLINK_STATE, plink_state, u8);
3896 PUT_SINFO_U64(RX_DURATION, rx_duration);
3898 switch (rdev->wiphy.signal_type) {
3899 case CFG80211_SIGNAL_TYPE_MBM:
3900 PUT_SINFO(SIGNAL, signal, u8);
3901 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
3906 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
3907 if (!nl80211_put_signal(msg, sinfo->chains,
3908 sinfo->chain_signal,
3909 NL80211_STA_INFO_CHAIN_SIGNAL))
3910 goto nla_put_failure;
3912 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
3913 if (!nl80211_put_signal(msg, sinfo->chains,
3914 sinfo->chain_signal_avg,
3915 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3916 goto nla_put_failure;
3918 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
3919 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3920 NL80211_STA_INFO_TX_BITRATE))
3921 goto nla_put_failure;
3923 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
3924 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3925 NL80211_STA_INFO_RX_BITRATE))
3926 goto nla_put_failure;
3929 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3930 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3931 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3932 PUT_SINFO(TX_FAILED, tx_failed, u32);
3933 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3934 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3935 PUT_SINFO(LOCAL_PM, local_pm, u32);
3936 PUT_SINFO(PEER_PM, peer_pm, u32);
3937 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3939 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
3940 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3942 goto nla_put_failure;
3944 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3945 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3946 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3947 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3948 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3949 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3950 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3951 sinfo->bss_param.dtim_period) ||
3952 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3953 sinfo->bss_param.beacon_interval))
3954 goto nla_put_failure;
3956 nla_nest_end(msg, bss_param);
3958 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
3959 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3960 sizeof(struct nl80211_sta_flag_update),
3962 goto nla_put_failure;
3964 PUT_SINFO_U64(T_OFFSET, t_offset);
3965 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
3966 PUT_SINFO_U64(BEACON_RX, rx_beacon);
3967 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
3970 #undef PUT_SINFO_U64
3972 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3973 struct nlattr *tidsattr;
3976 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3978 goto nla_put_failure;
3980 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3981 struct cfg80211_tid_stats *tidstats;
3982 struct nlattr *tidattr;
3984 tidstats = &sinfo->pertid[tid];
3986 if (!tidstats->filled)
3989 tidattr = nla_nest_start(msg, tid + 1);
3991 goto nla_put_failure;
3993 #define PUT_TIDVAL_U64(attr, memb) do { \
3994 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3995 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
3996 tidstats->memb, NL80211_TID_STATS_PAD)) \
3997 goto nla_put_failure; \
4000 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4001 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4002 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4003 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
4005 #undef PUT_TIDVAL_U64
4006 nla_nest_end(msg, tidattr);
4009 nla_nest_end(msg, tidsattr);
4012 nla_nest_end(msg, sinfoattr);
4014 if (sinfo->assoc_req_ies_len &&
4015 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4016 sinfo->assoc_req_ies))
4017 goto nla_put_failure;
4019 genlmsg_end(msg, hdr);
4023 genlmsg_cancel(msg, hdr);
4027 static int nl80211_dump_station(struct sk_buff *skb,
4028 struct netlink_callback *cb)
4030 struct station_info sinfo;
4031 struct cfg80211_registered_device *rdev;
4032 struct wireless_dev *wdev;
4033 u8 mac_addr[ETH_ALEN];
4034 int sta_idx = cb->args[2];
4037 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4041 if (!wdev->netdev) {
4046 if (!rdev->ops->dump_station) {
4052 memset(&sinfo, 0, sizeof(sinfo));
4053 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
4060 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
4061 NETLINK_CB(cb->skb).portid,
4062 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4063 rdev, wdev->netdev, mac_addr,
4071 cb->args[2] = sta_idx;
4074 nl80211_finish_wdev_dump(rdev);
4079 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4082 struct net_device *dev = info->user_ptr[1];
4083 struct station_info sinfo;
4084 struct sk_buff *msg;
4085 u8 *mac_addr = NULL;
4088 memset(&sinfo, 0, sizeof(sinfo));
4090 if (!info->attrs[NL80211_ATTR_MAC])
4093 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4095 if (!rdev->ops->get_station)
4098 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
4102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4106 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4107 info->snd_portid, info->snd_seq, 0,
4108 rdev, dev, mac_addr, &sinfo) < 0) {
4113 return genlmsg_reply(msg, info);
4116 int cfg80211_check_station_change(struct wiphy *wiphy,
4117 struct station_parameters *params,
4118 enum cfg80211_station_type statype)
4120 if (params->listen_interval != -1 &&
4121 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4124 if (params->support_p2p_ps != -1 &&
4125 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4129 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4130 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4133 /* When you run into this, adjust the code below for the new flag */
4134 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4137 case CFG80211_STA_MESH_PEER_KERNEL:
4138 case CFG80211_STA_MESH_PEER_USER:
4140 * No ignoring the TDLS flag here -- the userspace mesh
4141 * code doesn't have the bug of including TDLS in the
4144 if (params->sta_flags_mask &
4145 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4146 BIT(NL80211_STA_FLAG_MFP) |
4147 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4150 case CFG80211_STA_TDLS_PEER_SETUP:
4151 case CFG80211_STA_TDLS_PEER_ACTIVE:
4152 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4154 /* ignore since it can't change */
4155 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4158 /* disallow mesh-specific things */
4159 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4161 if (params->local_pm)
4163 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4167 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4168 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4169 /* TDLS can't be set, ... */
4170 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4173 * ... but don't bother the driver with it. This works around
4174 * a hostapd/wpa_supplicant issue -- it always includes the
4175 * TLDS_PEER flag in the mask even for AP mode.
4177 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4180 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4181 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4182 /* reject other things that can't change */
4183 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4185 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4187 if (params->supported_rates)
4189 if (params->ext_capab || params->ht_capa || params->vht_capa)
4193 if (statype != CFG80211_STA_AP_CLIENT &&
4194 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4200 case CFG80211_STA_AP_MLME_CLIENT:
4201 /* Use this only for authorizing/unauthorizing a station */
4202 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4205 case CFG80211_STA_AP_CLIENT:
4206 case CFG80211_STA_AP_CLIENT_UNASSOC:
4207 /* accept only the listed bits */
4208 if (params->sta_flags_mask &
4209 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4210 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4211 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4212 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4213 BIT(NL80211_STA_FLAG_WME) |
4214 BIT(NL80211_STA_FLAG_MFP)))
4217 /* but authenticated/associated only if driver handles it */
4218 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4219 params->sta_flags_mask &
4220 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4221 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4224 case CFG80211_STA_IBSS:
4225 case CFG80211_STA_AP_STA:
4226 /* reject any changes other than AUTHORIZED */
4227 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4230 case CFG80211_STA_TDLS_PEER_SETUP:
4231 /* reject any changes other than AUTHORIZED or WME */
4232 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4233 BIT(NL80211_STA_FLAG_WME)))
4235 /* force (at least) rates when authorizing */
4236 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4237 !params->supported_rates)
4240 case CFG80211_STA_TDLS_PEER_ACTIVE:
4241 /* reject any changes */
4243 case CFG80211_STA_MESH_PEER_KERNEL:
4244 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4247 case CFG80211_STA_MESH_PEER_USER:
4248 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4249 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4256 EXPORT_SYMBOL(cfg80211_check_station_change);
4259 * Get vlan interface making sure it is running and on the right wiphy.
4261 static struct net_device *get_vlan(struct genl_info *info,
4262 struct cfg80211_registered_device *rdev)
4264 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4265 struct net_device *v;
4271 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4273 return ERR_PTR(-ENODEV);
4275 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4280 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4281 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4282 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4287 if (!netif_running(v)) {
4295 return ERR_PTR(ret);
4298 static const struct nla_policy
4299 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4300 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4301 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4304 static int nl80211_parse_sta_wme(struct genl_info *info,
4305 struct station_parameters *params)
4307 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4311 /* parse WME attributes if present */
4312 if (!info->attrs[NL80211_ATTR_STA_WME])
4315 nla = info->attrs[NL80211_ATTR_STA_WME];
4316 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4317 nl80211_sta_wme_policy);
4321 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4322 params->uapsd_queues = nla_get_u8(
4323 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4324 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4327 if (tb[NL80211_STA_WME_MAX_SP])
4328 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4330 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4333 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4338 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4339 struct station_parameters *params)
4341 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4342 params->supported_channels =
4343 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4344 params->supported_channels_len =
4345 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4347 * Need to include at least one (first channel, number of
4348 * channels) tuple for each subband, and must have proper
4349 * tuples for the rest of the data as well.
4351 if (params->supported_channels_len < 2)
4353 if (params->supported_channels_len % 2)
4357 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4358 params->supported_oper_classes =
4359 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4360 params->supported_oper_classes_len =
4361 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4363 * The value of the Length field of the Supported Operating
4364 * Classes element is between 2 and 253.
4366 if (params->supported_oper_classes_len < 2 ||
4367 params->supported_oper_classes_len > 253)
4373 static int nl80211_set_station_tdls(struct genl_info *info,
4374 struct station_parameters *params)
4377 /* Dummy STA entry gets updated once the peer capabilities are known */
4378 if (info->attrs[NL80211_ATTR_PEER_AID])
4379 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4380 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4382 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4383 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4385 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4387 err = nl80211_parse_sta_channel_info(info, params);
4391 return nl80211_parse_sta_wme(info, params);
4394 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4397 struct net_device *dev = info->user_ptr[1];
4398 struct station_parameters params;
4402 memset(¶ms, 0, sizeof(params));
4404 if (!rdev->ops->change_station)
4408 * AID and listen_interval properties can be set only for unassociated
4409 * station. Include these parameters here and will check them in
4410 * cfg80211_check_station_change().
4412 if (info->attrs[NL80211_ATTR_STA_AID])
4413 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4415 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4416 params.listen_interval =
4417 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4419 params.listen_interval = -1;
4421 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4424 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4425 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4428 params.support_p2p_ps = tmp;
4430 params.support_p2p_ps = -1;
4433 if (!info->attrs[NL80211_ATTR_MAC])
4436 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4438 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4439 params.supported_rates =
4440 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4441 params.supported_rates_len =
4442 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4445 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4447 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4448 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4451 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4453 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4454 params.ext_capab_len =
4455 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4458 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4461 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4462 params.plink_action =
4463 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4464 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4468 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4469 params.plink_state =
4470 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4471 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4473 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4474 params.peer_aid = nla_get_u16(
4475 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4476 if (params.peer_aid > IEEE80211_MAX_AID)
4479 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4482 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4483 enum nl80211_mesh_power_mode pm = nla_get_u32(
4484 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4486 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4487 pm > NL80211_MESH_POWER_MAX)
4490 params.local_pm = pm;
4493 /* Include parameters for TDLS peer (will check later) */
4494 err = nl80211_set_station_tdls(info, ¶ms);
4498 params.vlan = get_vlan(info, rdev);
4499 if (IS_ERR(params.vlan))
4500 return PTR_ERR(params.vlan);
4502 switch (dev->ieee80211_ptr->iftype) {
4503 case NL80211_IFTYPE_AP:
4504 case NL80211_IFTYPE_AP_VLAN:
4505 case NL80211_IFTYPE_P2P_GO:
4506 case NL80211_IFTYPE_P2P_CLIENT:
4507 case NL80211_IFTYPE_STATION:
4508 case NL80211_IFTYPE_ADHOC:
4509 case NL80211_IFTYPE_MESH_POINT:
4516 /* driver will call cfg80211_check_station_change() */
4517 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4521 dev_put(params.vlan);
4526 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4530 struct net_device *dev = info->user_ptr[1];
4531 struct station_parameters params;
4532 u8 *mac_addr = NULL;
4533 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4534 BIT(NL80211_STA_FLAG_ASSOCIATED);
4536 memset(¶ms, 0, sizeof(params));
4538 if (!rdev->ops->add_station)
4541 if (!info->attrs[NL80211_ATTR_MAC])
4544 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4547 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4550 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4551 !info->attrs[NL80211_ATTR_PEER_AID])
4554 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4555 params.supported_rates =
4556 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4557 params.supported_rates_len =
4558 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4559 params.listen_interval =
4560 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4562 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4565 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4566 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4569 params.support_p2p_ps = tmp;
4572 * if not specified, assume it's supported for P2P GO interface,
4573 * and is NOT supported for AP interface
4575 params.support_p2p_ps =
4576 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
4579 if (info->attrs[NL80211_ATTR_PEER_AID])
4580 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4582 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4583 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4586 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4588 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4589 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4592 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4594 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4595 params.ext_capab_len =
4596 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4599 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4601 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4603 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4605 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4607 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4608 params.opmode_notif_used = true;
4609 params.opmode_notif =
4610 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4613 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4614 params.plink_action =
4615 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4616 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4620 err = nl80211_parse_sta_channel_info(info, ¶ms);
4624 err = nl80211_parse_sta_wme(info, ¶ms);
4628 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4631 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4632 * as userspace might just pass through the capabilities from the IEs
4633 * directly, rather than enforcing this restriction and returning an
4634 * error in this case.
4636 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4637 params.ht_capa = NULL;
4638 params.vht_capa = NULL;
4641 /* When you run into this, adjust the code below for the new flag */
4642 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4644 switch (dev->ieee80211_ptr->iftype) {
4645 case NL80211_IFTYPE_AP:
4646 case NL80211_IFTYPE_AP_VLAN:
4647 case NL80211_IFTYPE_P2P_GO:
4648 /* ignore WME attributes if iface/sta is not capable */
4649 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4650 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4651 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4653 /* TDLS peers cannot be added */
4654 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4655 info->attrs[NL80211_ATTR_PEER_AID])
4657 /* but don't bother the driver with it */
4658 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4660 /* allow authenticated/associated only if driver handles it */
4661 if (!(rdev->wiphy.features &
4662 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4663 params.sta_flags_mask & auth_assoc)
4666 /* Older userspace, or userspace wanting to be compatible with
4667 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4668 * and assoc flags in the mask, but assumes the station will be
4669 * added as associated anyway since this was the required driver
4670 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4672 * In order to not bother drivers with this quirk in the API
4673 * set the flags in both the mask and set for new stations in
4676 if (!(params.sta_flags_mask & auth_assoc)) {
4677 params.sta_flags_mask |= auth_assoc;
4678 params.sta_flags_set |= auth_assoc;
4681 /* must be last in here for error handling */
4682 params.vlan = get_vlan(info, rdev);
4683 if (IS_ERR(params.vlan))
4684 return PTR_ERR(params.vlan);
4686 case NL80211_IFTYPE_MESH_POINT:
4687 /* ignore uAPSD data */
4688 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4690 /* associated is disallowed */
4691 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4693 /* TDLS peers cannot be added */
4694 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4695 info->attrs[NL80211_ATTR_PEER_AID])
4698 case NL80211_IFTYPE_STATION:
4699 case NL80211_IFTYPE_P2P_CLIENT:
4700 /* ignore uAPSD data */
4701 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4703 /* these are disallowed */
4704 if (params.sta_flags_mask &
4705 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4706 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4708 /* Only TDLS peers can be added */
4709 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4711 /* Can only add if TDLS ... */
4712 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4714 /* ... with external setup is supported */
4715 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4718 * Older wpa_supplicant versions always mark the TDLS peer
4719 * as authorized, but it shouldn't yet be.
4721 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4727 /* be aware of params.vlan when changing code here */
4729 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4732 dev_put(params.vlan);
4736 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4739 struct net_device *dev = info->user_ptr[1];
4740 struct station_del_parameters params;
4742 memset(¶ms, 0, sizeof(params));
4744 if (info->attrs[NL80211_ATTR_MAC])
4745 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4747 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4748 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4749 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4750 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4753 if (!rdev->ops->del_station)
4756 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4758 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4759 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4760 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4763 /* Default to Deauthentication frame */
4764 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4767 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4768 params.reason_code =
4769 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4770 if (params.reason_code == 0)
4771 return -EINVAL; /* 0 is reserved */
4773 /* Default to reason code 2 */
4774 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4777 return rdev_del_station(rdev, dev, ¶ms);
4780 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4781 int flags, struct net_device *dev,
4782 u8 *dst, u8 *next_hop,
4783 struct mpath_info *pinfo)
4786 struct nlattr *pinfoattr;
4788 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4792 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4793 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4794 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4795 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4796 goto nla_put_failure;
4798 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4800 goto nla_put_failure;
4801 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4802 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4804 goto nla_put_failure;
4805 if (((pinfo->filled & MPATH_INFO_SN) &&
4806 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4807 ((pinfo->filled & MPATH_INFO_METRIC) &&
4808 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4810 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4811 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4813 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4814 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4816 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4817 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4818 pinfo->discovery_timeout)) ||
4819 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4820 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4821 pinfo->discovery_retries)))
4822 goto nla_put_failure;
4824 nla_nest_end(msg, pinfoattr);
4826 genlmsg_end(msg, hdr);
4830 genlmsg_cancel(msg, hdr);
4834 static int nl80211_dump_mpath(struct sk_buff *skb,
4835 struct netlink_callback *cb)
4837 struct mpath_info pinfo;
4838 struct cfg80211_registered_device *rdev;
4839 struct wireless_dev *wdev;
4841 u8 next_hop[ETH_ALEN];
4842 int path_idx = cb->args[2];
4845 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4849 if (!rdev->ops->dump_mpath) {
4854 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4860 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4867 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4868 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4869 wdev->netdev, dst, next_hop,
4877 cb->args[2] = path_idx;
4880 nl80211_finish_wdev_dump(rdev);
4884 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4888 struct net_device *dev = info->user_ptr[1];
4889 struct mpath_info pinfo;
4890 struct sk_buff *msg;
4892 u8 next_hop[ETH_ALEN];
4894 memset(&pinfo, 0, sizeof(pinfo));
4896 if (!info->attrs[NL80211_ATTR_MAC])
4899 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4901 if (!rdev->ops->get_mpath)
4904 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4907 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4915 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4916 dev, dst, next_hop, &pinfo) < 0) {
4921 return genlmsg_reply(msg, info);
4924 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4927 struct net_device *dev = info->user_ptr[1];
4929 u8 *next_hop = NULL;
4931 if (!info->attrs[NL80211_ATTR_MAC])
4934 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4937 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4938 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4940 if (!rdev->ops->change_mpath)
4943 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4946 return rdev_change_mpath(rdev, dev, dst, next_hop);
4949 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4952 struct net_device *dev = info->user_ptr[1];
4954 u8 *next_hop = NULL;
4956 if (!info->attrs[NL80211_ATTR_MAC])
4959 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4962 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4963 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4965 if (!rdev->ops->add_mpath)
4968 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4971 return rdev_add_mpath(rdev, dev, dst, next_hop);
4974 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4977 struct net_device *dev = info->user_ptr[1];
4980 if (info->attrs[NL80211_ATTR_MAC])
4981 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4983 if (!rdev->ops->del_mpath)
4986 return rdev_del_mpath(rdev, dev, dst);
4989 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4991 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4993 struct net_device *dev = info->user_ptr[1];
4994 struct mpath_info pinfo;
4995 struct sk_buff *msg;
4999 memset(&pinfo, 0, sizeof(pinfo));
5001 if (!info->attrs[NL80211_ATTR_MAC])
5004 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5006 if (!rdev->ops->get_mpp)
5009 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5012 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5016 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5020 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5021 dev, dst, mpp, &pinfo) < 0) {
5026 return genlmsg_reply(msg, info);
5029 static int nl80211_dump_mpp(struct sk_buff *skb,
5030 struct netlink_callback *cb)
5032 struct mpath_info pinfo;
5033 struct cfg80211_registered_device *rdev;
5034 struct wireless_dev *wdev;
5037 int path_idx = cb->args[2];
5040 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5044 if (!rdev->ops->dump_mpp) {
5049 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5055 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5062 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5063 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5064 wdev->netdev, dst, mpp,
5072 cb->args[2] = path_idx;
5075 nl80211_finish_wdev_dump(rdev);
5079 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5082 struct net_device *dev = info->user_ptr[1];
5083 struct wireless_dev *wdev = dev->ieee80211_ptr;
5084 struct bss_parameters params;
5087 memset(¶ms, 0, sizeof(params));
5088 /* default to not changing parameters */
5089 params.use_cts_prot = -1;
5090 params.use_short_preamble = -1;
5091 params.use_short_slot_time = -1;
5092 params.ap_isolate = -1;
5093 params.ht_opmode = -1;
5094 params.p2p_ctwindow = -1;
5095 params.p2p_opp_ps = -1;
5097 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5098 params.use_cts_prot =
5099 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5100 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5101 params.use_short_preamble =
5102 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5103 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5104 params.use_short_slot_time =
5105 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
5106 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5107 params.basic_rates =
5108 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5109 params.basic_rates_len =
5110 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5112 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5113 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
5114 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5116 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
5118 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5119 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5121 params.p2p_ctwindow =
5122 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5123 if (params.p2p_ctwindow < 0)
5125 if (params.p2p_ctwindow != 0 &&
5126 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5130 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5133 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5135 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5138 params.p2p_opp_ps = tmp;
5139 if (params.p2p_opp_ps &&
5140 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5144 if (!rdev->ops->change_bss)
5147 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5148 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5152 err = rdev_change_bss(rdev, dev, ¶ms);
5158 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5162 enum nl80211_user_reg_hint_type user_reg_hint_type;
5166 * You should only get this when cfg80211 hasn't yet initialized
5167 * completely when built-in to the kernel right between the time
5168 * window between nl80211_init() and regulatory_init(), if that is
5171 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5172 return -EINPROGRESS;
5174 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5175 user_reg_hint_type =
5176 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5178 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5180 switch (user_reg_hint_type) {
5181 case NL80211_USER_REG_HINT_USER:
5182 case NL80211_USER_REG_HINT_CELL_BASE:
5183 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5186 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5187 return regulatory_hint_user(data, user_reg_hint_type);
5188 case NL80211_USER_REG_HINT_INDOOR:
5189 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5190 owner_nlportid = info->snd_portid;
5191 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5197 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5203 static int nl80211_get_mesh_config(struct sk_buff *skb,
5204 struct genl_info *info)
5206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5207 struct net_device *dev = info->user_ptr[1];
5208 struct wireless_dev *wdev = dev->ieee80211_ptr;
5209 struct mesh_config cur_params;
5212 struct nlattr *pinfoattr;
5213 struct sk_buff *msg;
5215 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5218 if (!rdev->ops->get_mesh_config)
5222 /* If not connected, get default parameters */
5223 if (!wdev->mesh_id_len)
5224 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5226 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5232 /* Draw up a netlink message to send back */
5233 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5236 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5237 NL80211_CMD_GET_MESH_CONFIG);
5240 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5242 goto nla_put_failure;
5243 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5244 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5245 cur_params.dot11MeshRetryTimeout) ||
5246 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5247 cur_params.dot11MeshConfirmTimeout) ||
5248 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5249 cur_params.dot11MeshHoldingTimeout) ||
5250 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5251 cur_params.dot11MeshMaxPeerLinks) ||
5252 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5253 cur_params.dot11MeshMaxRetries) ||
5254 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5255 cur_params.dot11MeshTTL) ||
5256 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5257 cur_params.element_ttl) ||
5258 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5259 cur_params.auto_open_plinks) ||
5260 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5261 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5262 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5263 cur_params.dot11MeshHWMPmaxPREQretries) ||
5264 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5265 cur_params.path_refresh_time) ||
5266 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5267 cur_params.min_discovery_timeout) ||
5268 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5269 cur_params.dot11MeshHWMPactivePathTimeout) ||
5270 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5271 cur_params.dot11MeshHWMPpreqMinInterval) ||
5272 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5273 cur_params.dot11MeshHWMPperrMinInterval) ||
5274 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5275 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5276 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5277 cur_params.dot11MeshHWMPRootMode) ||
5278 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5279 cur_params.dot11MeshHWMPRannInterval) ||
5280 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5281 cur_params.dot11MeshGateAnnouncementProtocol) ||
5282 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5283 cur_params.dot11MeshForwarding) ||
5284 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5285 cur_params.rssi_threshold) ||
5286 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5287 cur_params.ht_opmode) ||
5288 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5289 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5290 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5291 cur_params.dot11MeshHWMProotInterval) ||
5292 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5293 cur_params.dot11MeshHWMPconfirmationInterval) ||
5294 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5295 cur_params.power_mode) ||
5296 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5297 cur_params.dot11MeshAwakeWindowDuration) ||
5298 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5299 cur_params.plink_timeout))
5300 goto nla_put_failure;
5301 nla_nest_end(msg, pinfoattr);
5302 genlmsg_end(msg, hdr);
5303 return genlmsg_reply(msg, info);
5306 genlmsg_cancel(msg, hdr);
5312 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5313 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5314 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5315 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5316 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5317 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5318 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5319 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5320 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5321 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5322 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5323 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5324 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5325 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5326 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5327 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5328 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5329 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5330 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5331 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5332 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5333 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5334 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5335 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5336 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5337 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5338 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5339 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5340 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5343 static const struct nla_policy
5344 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5345 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5346 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5347 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5348 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5349 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5350 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5351 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5352 .len = IEEE80211_MAX_DATA_LEN },
5353 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5356 static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5358 u8 val = nla_get_u8(nla);
5359 if (val < min || val > max)
5365 static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5367 u8 val = nla_get_u8(nla);
5368 if (val < min || val > max)
5374 static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5376 u16 val = nla_get_u16(nla);
5377 if (val < min || val > max)
5383 static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5385 u32 val = nla_get_u32(nla);
5386 if (val < min || val > max)
5392 static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5394 s32 val = nla_get_s32(nla);
5395 if (val < min || val > max)
5401 static int nl80211_check_power_mode(const struct nlattr *nla,
5402 enum nl80211_mesh_power_mode min,
5403 enum nl80211_mesh_power_mode max,
5404 enum nl80211_mesh_power_mode *out)
5406 u32 val = nla_get_u32(nla);
5407 if (val < min || val > max)
5413 static int nl80211_parse_mesh_config(struct genl_info *info,
5414 struct mesh_config *cfg,
5417 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5421 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5424 if (fn(tb[attr], min, max, &cfg->param)) \
5426 mask |= (1 << (attr - 1)); \
5430 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5432 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5433 info->attrs[NL80211_ATTR_MESH_CONFIG],
5434 nl80211_meshconf_params_policy))
5437 /* This makes sure that there aren't more than 32 mesh config
5438 * parameters (otherwise our bitfield scheme would not work.) */
5439 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5441 /* Fill in the params struct */
5442 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5443 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5445 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5446 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5448 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5449 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5451 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5452 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5454 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5455 mask, NL80211_MESHCONF_MAX_RETRIES,
5457 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5458 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
5459 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5460 mask, NL80211_MESHCONF_ELEMENT_TTL,
5462 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5463 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5464 nl80211_check_bool);
5465 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5467 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5469 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5470 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5472 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5473 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5475 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5476 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5478 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5480 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5482 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5484 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5486 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5488 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5490 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5491 dot11MeshHWMPnetDiameterTraversalTime,
5493 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5495 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5496 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5498 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5499 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5501 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5502 dot11MeshGateAnnouncementProtocol, 0, 1,
5503 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5504 nl80211_check_bool);
5505 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5506 mask, NL80211_MESHCONF_FORWARDING,
5507 nl80211_check_bool);
5508 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5509 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5512 * Check HT operation mode based on
5513 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5515 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5516 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5518 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5519 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5520 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5523 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5524 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5527 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5528 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5529 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5530 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
5533 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
5534 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
5535 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5539 cfg->ht_opmode = ht_opmode;
5541 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5543 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5545 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5546 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5548 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5549 dot11MeshHWMPconfirmationInterval,
5551 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5553 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5554 NL80211_MESH_POWER_ACTIVE,
5555 NL80211_MESH_POWER_MAX,
5556 mask, NL80211_MESHCONF_POWER_MODE,
5557 nl80211_check_power_mode);
5558 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5560 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
5561 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5562 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5569 #undef FILL_IN_MESH_PARAM_IF_SET
5572 static int nl80211_parse_mesh_setup(struct genl_info *info,
5573 struct mesh_setup *setup)
5575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5576 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5578 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5580 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5581 info->attrs[NL80211_ATTR_MESH_SETUP],
5582 nl80211_mesh_setup_params_policy))
5585 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5586 setup->sync_method =
5587 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5588 IEEE80211_SYNC_METHOD_VENDOR :
5589 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5591 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5592 setup->path_sel_proto =
5593 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5594 IEEE80211_PATH_PROTOCOL_VENDOR :
5595 IEEE80211_PATH_PROTOCOL_HWMP;
5597 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5598 setup->path_metric =
5599 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5600 IEEE80211_PATH_METRIC_VENDOR :
5601 IEEE80211_PATH_METRIC_AIRTIME;
5603 if (tb[NL80211_MESH_SETUP_IE]) {
5604 struct nlattr *ieattr =
5605 tb[NL80211_MESH_SETUP_IE];
5606 if (!is_valid_ie_attr(ieattr))
5608 setup->ie = nla_data(ieattr);
5609 setup->ie_len = nla_len(ieattr);
5611 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5612 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5614 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5615 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5616 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5617 if (setup->is_secure)
5618 setup->user_mpm = true;
5620 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5621 if (!setup->user_mpm)
5624 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5630 static int nl80211_update_mesh_config(struct sk_buff *skb,
5631 struct genl_info *info)
5633 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5634 struct net_device *dev = info->user_ptr[1];
5635 struct wireless_dev *wdev = dev->ieee80211_ptr;
5636 struct mesh_config cfg;
5640 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5643 if (!rdev->ops->update_mesh_config)
5646 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5651 if (!wdev->mesh_id_len)
5655 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5662 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5663 struct sk_buff *msg)
5665 struct nlattr *nl_reg_rules;
5668 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5669 (regdom->dfs_region &&
5670 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5671 goto nla_put_failure;
5673 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5675 goto nla_put_failure;
5677 for (i = 0; i < regdom->n_reg_rules; i++) {
5678 struct nlattr *nl_reg_rule;
5679 const struct ieee80211_reg_rule *reg_rule;
5680 const struct ieee80211_freq_range *freq_range;
5681 const struct ieee80211_power_rule *power_rule;
5682 unsigned int max_bandwidth_khz;
5684 reg_rule = ®dom->reg_rules[i];
5685 freq_range = ®_rule->freq_range;
5686 power_rule = ®_rule->power_rule;
5688 nl_reg_rule = nla_nest_start(msg, i);
5690 goto nla_put_failure;
5692 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5693 if (!max_bandwidth_khz)
5694 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5697 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5699 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5700 freq_range->start_freq_khz) ||
5701 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5702 freq_range->end_freq_khz) ||
5703 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5704 max_bandwidth_khz) ||
5705 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5706 power_rule->max_antenna_gain) ||
5707 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5708 power_rule->max_eirp) ||
5709 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5710 reg_rule->dfs_cac_ms))
5711 goto nla_put_failure;
5713 nla_nest_end(msg, nl_reg_rule);
5716 nla_nest_end(msg, nl_reg_rules);
5723 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5725 const struct ieee80211_regdomain *regdom = NULL;
5726 struct cfg80211_registered_device *rdev;
5727 struct wiphy *wiphy = NULL;
5728 struct sk_buff *msg;
5731 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5735 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5736 NL80211_CMD_GET_REG);
5740 if (info->attrs[NL80211_ATTR_WIPHY]) {
5743 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5746 return PTR_ERR(rdev);
5749 wiphy = &rdev->wiphy;
5750 self_managed = wiphy->regulatory_flags &
5751 REGULATORY_WIPHY_SELF_MANAGED;
5752 regdom = get_wiphy_regdom(wiphy);
5754 /* a self-managed-reg device must have a private regdom */
5755 if (WARN_ON(!regdom && self_managed)) {
5761 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5762 goto nla_put_failure;
5765 if (!wiphy && reg_last_request_cell_base() &&
5766 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5767 NL80211_USER_REG_HINT_CELL_BASE))
5768 goto nla_put_failure;
5773 regdom = rcu_dereference(cfg80211_regdomain);
5775 if (nl80211_put_regdom(regdom, msg))
5776 goto nla_put_failure_rcu;
5780 genlmsg_end(msg, hdr);
5781 return genlmsg_reply(msg, info);
5783 nla_put_failure_rcu:
5786 genlmsg_cancel(msg, hdr);
5792 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5793 u32 seq, int flags, struct wiphy *wiphy,
5794 const struct ieee80211_regdomain *regdom)
5796 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5797 NL80211_CMD_GET_REG);
5802 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5804 if (nl80211_put_regdom(regdom, msg))
5805 goto nla_put_failure;
5807 if (!wiphy && reg_last_request_cell_base() &&
5808 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5809 NL80211_USER_REG_HINT_CELL_BASE))
5810 goto nla_put_failure;
5813 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5814 goto nla_put_failure;
5816 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5817 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5818 goto nla_put_failure;
5820 genlmsg_end(msg, hdr);
5824 genlmsg_cancel(msg, hdr);
5828 static int nl80211_get_reg_dump(struct sk_buff *skb,
5829 struct netlink_callback *cb)
5831 const struct ieee80211_regdomain *regdom = NULL;
5832 struct cfg80211_registered_device *rdev;
5833 int err, reg_idx, start = cb->args[2];
5837 if (cfg80211_regdomain && start == 0) {
5838 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5840 rtnl_dereference(cfg80211_regdomain));
5845 /* the global regdom is idx 0 */
5847 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5848 regdom = get_wiphy_regdom(&rdev->wiphy);
5852 if (++reg_idx <= start)
5855 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5856 NLM_F_MULTI, &rdev->wiphy, regdom);
5863 cb->args[2] = reg_idx;
5870 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
5871 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5872 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5873 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5874 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5875 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5876 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5877 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5878 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5881 static int parse_reg_rule(struct nlattr *tb[],
5882 struct ieee80211_reg_rule *reg_rule)
5884 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
5885 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
5887 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5889 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5891 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5893 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5895 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5898 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5900 freq_range->start_freq_khz =
5901 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5902 freq_range->end_freq_khz =
5903 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5904 freq_range->max_bandwidth_khz =
5905 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5907 power_rule->max_eirp =
5908 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5910 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5911 power_rule->max_antenna_gain =
5912 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5914 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5915 reg_rule->dfs_cac_ms =
5916 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5921 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5923 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5924 struct nlattr *nl_reg_rule;
5926 int rem_reg_rules, r;
5927 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5928 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5929 struct ieee80211_regdomain *rd;
5931 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5934 if (!info->attrs[NL80211_ATTR_REG_RULES])
5937 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5939 if (info->attrs[NL80211_ATTR_DFS_REGION])
5940 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5942 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5945 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5949 if (!reg_is_valid_request(alpha2))
5952 size_of_regd = sizeof(struct ieee80211_regdomain) +
5953 num_rules * sizeof(struct ieee80211_reg_rule);
5955 rd = kzalloc(size_of_regd, GFP_KERNEL);
5959 rd->n_reg_rules = num_rules;
5960 rd->alpha2[0] = alpha2[0];
5961 rd->alpha2[1] = alpha2[1];
5964 * Disable DFS master mode if the DFS region was
5965 * not supported or known on this kernel.
5967 if (reg_supported_dfs_region(dfs_region))
5968 rd->dfs_region = dfs_region;
5970 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5972 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5973 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5977 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5983 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5989 /* set_regdom takes ownership of rd */
5990 return set_regdom(rd, REGD_SOURCE_CRDA);
5995 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
5997 static int validate_scan_freqs(struct nlattr *freqs)
5999 struct nlattr *attr1, *attr2;
6000 int n_channels = 0, tmp1, tmp2;
6002 nla_for_each_nested(attr1, freqs, tmp1) {
6005 * Some hardware has a limited channel list for
6006 * scanning, and it is pretty much nonsensical
6007 * to scan for a channel twice, so disallow that
6008 * and don't require drivers to check that the
6009 * channel list they get isn't longer than what
6010 * they can scan, as long as they can scan all
6011 * the channels they registered at once.
6013 nla_for_each_nested(attr2, freqs, tmp2)
6014 if (attr1 != attr2 &&
6015 nla_get_u32(attr1) == nla_get_u32(attr2))
6022 static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
6024 return b < NUM_NL80211_BANDS && wiphy->bands[b];
6027 static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6028 struct cfg80211_bss_selection *bss_select)
6030 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6031 struct nlattr *nest;
6036 /* only process one nested attribute */
6037 nest = nla_data(nla);
6038 if (!nla_ok(nest, nla_len(nest)))
6041 err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX, nla_data(nest),
6042 nla_len(nest), nl80211_bss_select_policy);
6046 /* only one attribute may be given */
6047 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6055 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6057 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6058 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6060 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6061 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6062 bss_select->param.band_pref =
6063 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6064 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6068 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6069 struct nl80211_bss_select_rssi_adjust *adj_param;
6071 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6072 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6073 bss_select->param.adjust.band = adj_param->band;
6074 bss_select->param.adjust.delta = adj_param->delta;
6075 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6079 /* user-space did not provide behaviour attribute */
6080 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6083 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6089 static int nl80211_parse_random_mac(struct nlattr **attrs,
6090 u8 *mac_addr, u8 *mac_addr_mask)
6094 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
6095 eth_zero_addr(mac_addr);
6096 eth_zero_addr(mac_addr_mask);
6098 mac_addr_mask[0] = 0x3;
6103 /* need both or none */
6104 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6107 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6108 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6110 /* don't allow or configure an mcast address */
6111 if (!is_multicast_ether_addr(mac_addr_mask) ||
6112 is_multicast_ether_addr(mac_addr))
6116 * allow users to pass a MAC address that has bits set outside
6117 * of the mask, but don't bother drivers with having to deal
6120 for (i = 0; i < ETH_ALEN; i++)
6121 mac_addr[i] &= mac_addr_mask[i];
6126 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6128 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6129 struct wireless_dev *wdev = info->user_ptr[1];
6130 struct cfg80211_scan_request *request;
6131 struct nlattr *attr;
6132 struct wiphy *wiphy;
6133 int err, tmp, n_ssids = 0, n_channels, i;
6136 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6139 wiphy = &rdev->wiphy;
6141 if (!rdev->ops->scan)
6144 if (rdev->scan_req || rdev->scan_msg) {
6149 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6150 n_channels = validate_scan_freqs(
6151 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6157 n_channels = ieee80211_get_num_supported_channels(wiphy);
6160 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6161 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6164 if (n_ssids > wiphy->max_scan_ssids) {
6169 if (info->attrs[NL80211_ATTR_IE])
6170 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6174 if (ie_len > wiphy->max_scan_ie_len) {
6179 request = kzalloc(sizeof(*request)
6180 + sizeof(*request->ssids) * n_ssids
6181 + sizeof(*request->channels) * n_channels
6182 + ie_len, GFP_KERNEL);
6189 request->ssids = (void *)&request->channels[n_channels];
6190 request->n_ssids = n_ssids;
6193 request->ie = (void *)(request->ssids + n_ssids);
6195 request->ie = (void *)(request->channels + n_channels);
6199 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6200 /* user specified, bail out if channel not found */
6201 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
6202 struct ieee80211_channel *chan;
6204 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6211 /* ignore disabled channels */
6212 if (chan->flags & IEEE80211_CHAN_DISABLED)
6215 request->channels[i] = chan;
6219 enum nl80211_band band;
6222 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6225 if (!wiphy->bands[band])
6227 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6228 struct ieee80211_channel *chan;
6230 chan = &wiphy->bands[band]->channels[j];
6232 if (chan->flags & IEEE80211_CHAN_DISABLED)
6235 request->channels[i] = chan;
6246 request->n_channels = i;
6250 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
6251 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6255 request->ssids[i].ssid_len = nla_len(attr);
6256 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
6261 if (info->attrs[NL80211_ATTR_IE]) {
6262 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6263 memcpy((void *)request->ie,
6264 nla_data(info->attrs[NL80211_ATTR_IE]),
6268 for (i = 0; i < NUM_NL80211_BANDS; i++)
6269 if (wiphy->bands[i])
6271 (1 << wiphy->bands[i]->n_bitrates) - 1;
6273 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6274 nla_for_each_nested(attr,
6275 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6277 enum nl80211_band band = nla_type(attr);
6279 if (band < 0 || band >= NUM_NL80211_BANDS) {
6284 if (!wiphy->bands[band])
6287 err = ieee80211_get_ratemask(wiphy->bands[band],
6290 &request->rates[band]);
6296 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6297 if (!wiphy_ext_feature_isset(wiphy,
6298 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6304 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6305 request->duration_mandatory =
6306 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6309 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
6310 request->flags = nla_get_u32(
6311 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
6312 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6313 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6318 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6319 if (!(wiphy->features &
6320 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6325 if (wdev->current_bss) {
6330 err = nl80211_parse_random_mac(info->attrs,
6332 request->mac_addr_mask);
6339 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6341 if (info->attrs[NL80211_ATTR_MAC])
6342 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6345 eth_broadcast_addr(request->bssid);
6347 request->wdev = wdev;
6348 request->wiphy = &rdev->wiphy;
6349 request->scan_start = jiffies;
6351 rdev->scan_req = request;
6352 err = rdev_scan(rdev, request);
6355 nl80211_send_scan_start(rdev, wdev);
6357 dev_hold(wdev->netdev);
6360 rdev->scan_req = NULL;
6368 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6371 struct wireless_dev *wdev = info->user_ptr[1];
6373 if (!rdev->ops->abort_scan)
6379 if (!rdev->scan_req)
6382 rdev_abort_scan(rdev, wdev);
6387 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6388 struct cfg80211_sched_scan_request *request,
6389 struct nlattr **attrs)
6391 int tmp, err, i = 0;
6392 struct nlattr *attr;
6394 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6398 * If scan plans are not specified,
6399 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6400 * case one scan plan will be set with the specified scan
6401 * interval and infinite number of iterations.
6403 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6406 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6410 request->scan_plans[0].interval =
6411 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6412 if (!request->scan_plans[0].interval)
6415 if (request->scan_plans[0].interval >
6416 wiphy->max_sched_scan_plan_interval)
6417 request->scan_plans[0].interval =
6418 wiphy->max_sched_scan_plan_interval;
6423 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6424 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6426 if (WARN_ON(i >= n_plans))
6429 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6430 nla_data(attr), nla_len(attr),
6431 nl80211_plan_policy);
6435 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6438 request->scan_plans[i].interval =
6439 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6440 if (!request->scan_plans[i].interval ||
6441 request->scan_plans[i].interval >
6442 wiphy->max_sched_scan_plan_interval)
6445 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6446 request->scan_plans[i].iterations =
6447 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6448 if (!request->scan_plans[i].iterations ||
6449 (request->scan_plans[i].iterations >
6450 wiphy->max_sched_scan_plan_iterations))
6452 } else if (i < n_plans - 1) {
6454 * All scan plans but the last one must specify
6455 * a finite number of iterations
6464 * The last scan plan must not specify the number of
6465 * iterations, it is supposed to run infinitely
6467 if (request->scan_plans[n_plans - 1].iterations)
6473 static struct cfg80211_sched_scan_request *
6474 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6475 struct nlattr **attrs)
6477 struct cfg80211_sched_scan_request *request;
6478 struct nlattr *attr;
6479 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6480 enum nl80211_band band;
6482 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
6483 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
6485 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6486 return ERR_PTR(-EINVAL);
6488 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6489 n_channels = validate_scan_freqs(
6490 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6492 return ERR_PTR(-EINVAL);
6494 n_channels = ieee80211_get_num_supported_channels(wiphy);
6497 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6498 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6502 if (n_ssids > wiphy->max_sched_scan_ssids)
6503 return ERR_PTR(-EINVAL);
6506 * First, count the number of 'real' matchsets. Due to an issue with
6507 * the old implementation, matchsets containing only the RSSI attribute
6508 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6509 * RSSI for all matchsets, rather than their own matchset for reporting
6510 * all APs with a strong RSSI. This is needed to be compatible with
6511 * older userspace that treated a matchset with only the RSSI as the
6512 * global RSSI for all other matchsets - if there are other matchsets.
6514 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6515 nla_for_each_nested(attr,
6516 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6518 struct nlattr *rssi;
6520 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6521 nla_data(attr), nla_len(attr),
6522 nl80211_match_policy);
6524 return ERR_PTR(err);
6525 /* add other standalone attributes here */
6526 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6530 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6532 default_match_rssi = nla_get_s32(rssi);
6536 /* However, if there's no other matchset, add the RSSI one */
6537 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6540 if (n_match_sets > wiphy->max_match_sets)
6541 return ERR_PTR(-EINVAL);
6543 if (attrs[NL80211_ATTR_IE])
6544 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6548 if (ie_len > wiphy->max_sched_scan_ie_len)
6549 return ERR_PTR(-EINVAL);
6551 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6553 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6554 * each scan plan already specifies its own interval
6556 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6557 return ERR_PTR(-EINVAL);
6559 nla_for_each_nested(attr,
6560 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6564 * The scan interval attribute is kept for backward
6565 * compatibility. If no scan plans are specified and sched scan
6566 * interval is specified, one scan plan will be set with this
6567 * scan interval and infinite number of iterations.
6569 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6570 return ERR_PTR(-EINVAL);
6575 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6576 return ERR_PTR(-EINVAL);
6578 request = kzalloc(sizeof(*request)
6579 + sizeof(*request->ssids) * n_ssids
6580 + sizeof(*request->match_sets) * n_match_sets
6581 + sizeof(*request->scan_plans) * n_plans
6582 + sizeof(*request->channels) * n_channels
6583 + ie_len, GFP_KERNEL);
6585 return ERR_PTR(-ENOMEM);
6588 request->ssids = (void *)&request->channels[n_channels];
6589 request->n_ssids = n_ssids;
6592 request->ie = (void *)(request->ssids + n_ssids);
6594 request->ie = (void *)(request->channels + n_channels);
6599 request->match_sets = (void *)(request->ie + ie_len);
6601 request->match_sets =
6602 (void *)(request->ssids + n_ssids);
6604 request->match_sets =
6605 (void *)(request->channels + n_channels);
6607 request->n_match_sets = n_match_sets;
6610 request->scan_plans = (void *)(request->match_sets +
6612 else if (request->ie)
6613 request->scan_plans = (void *)(request->ie + ie_len);
6615 request->scan_plans = (void *)(request->ssids + n_ssids);
6617 request->scan_plans = (void *)(request->channels + n_channels);
6619 request->n_scan_plans = n_plans;
6622 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6623 /* user specified, bail out if channel not found */
6624 nla_for_each_nested(attr,
6625 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
6627 struct ieee80211_channel *chan;
6629 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6636 /* ignore disabled channels */
6637 if (chan->flags & IEEE80211_CHAN_DISABLED)
6640 request->channels[i] = chan;
6645 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6648 if (!wiphy->bands[band])
6650 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6651 struct ieee80211_channel *chan;
6653 chan = &wiphy->bands[band]->channels[j];
6655 if (chan->flags & IEEE80211_CHAN_DISABLED)
6658 request->channels[i] = chan;
6669 request->n_channels = i;
6673 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6675 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6679 request->ssids[i].ssid_len = nla_len(attr);
6680 memcpy(request->ssids[i].ssid, nla_data(attr),
6687 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6688 nla_for_each_nested(attr,
6689 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6691 struct nlattr *ssid, *rssi;
6693 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6694 nla_data(attr), nla_len(attr),
6695 nl80211_match_policy);
6698 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
6700 if (WARN_ON(i >= n_match_sets)) {
6701 /* this indicates a programming error,
6702 * the loop above should have verified
6709 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6713 memcpy(request->match_sets[i].ssid.ssid,
6714 nla_data(ssid), nla_len(ssid));
6715 request->match_sets[i].ssid.ssid_len =
6717 /* special attribute - old implementation w/a */
6718 request->match_sets[i].rssi_thold =
6720 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6722 request->match_sets[i].rssi_thold =
6728 /* there was no other matchset, so the RSSI one is alone */
6729 if (i == 0 && n_match_sets)
6730 request->match_sets[0].rssi_thold = default_match_rssi;
6732 request->min_rssi_thold = INT_MAX;
6733 for (i = 0; i < n_match_sets; i++)
6734 request->min_rssi_thold =
6735 min(request->match_sets[i].rssi_thold,
6736 request->min_rssi_thold);
6738 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6742 request->ie_len = ie_len;
6743 memcpy((void *)request->ie,
6744 nla_data(attrs[NL80211_ATTR_IE]),
6748 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6749 request->flags = nla_get_u32(
6750 attrs[NL80211_ATTR_SCAN_FLAGS]);
6751 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6752 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6757 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6758 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6760 if (!wdev) /* must be net-detect */
6761 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6763 if (!(wiphy->features & flg)) {
6768 if (wdev && wdev->current_bss) {
6773 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6774 request->mac_addr_mask);
6780 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6782 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6784 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6788 request->scan_start = jiffies;
6794 return ERR_PTR(err);
6797 static int nl80211_start_sched_scan(struct sk_buff *skb,
6798 struct genl_info *info)
6800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6801 struct net_device *dev = info->user_ptr[1];
6802 struct wireless_dev *wdev = dev->ieee80211_ptr;
6803 struct cfg80211_sched_scan_request *sched_scan_req;
6806 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6807 !rdev->ops->sched_scan_start)
6810 if (rdev->sched_scan_req)
6811 return -EINPROGRESS;
6813 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6816 err = PTR_ERR_OR_ZERO(sched_scan_req);
6820 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
6824 sched_scan_req->dev = dev;
6825 sched_scan_req->wiphy = &rdev->wiphy;
6827 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6828 sched_scan_req->owner_nlportid = info->snd_portid;
6830 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
6832 nl80211_send_sched_scan(rdev, dev,
6833 NL80211_CMD_START_SCHED_SCAN);
6837 kfree(sched_scan_req);
6842 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6843 struct genl_info *info)
6845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6847 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6848 !rdev->ops->sched_scan_stop)
6851 return __cfg80211_stop_sched_scan(rdev, false);
6854 static int nl80211_start_radar_detection(struct sk_buff *skb,
6855 struct genl_info *info)
6857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6858 struct net_device *dev = info->user_ptr[1];
6859 struct wireless_dev *wdev = dev->ieee80211_ptr;
6860 struct cfg80211_chan_def chandef;
6861 enum nl80211_dfs_regions dfs_region;
6862 unsigned int cac_time_ms;
6865 dfs_region = reg_get_dfs_region(wdev->wiphy);
6866 if (dfs_region == NL80211_DFS_UNSET)
6869 err = nl80211_parse_chandef(rdev, info, &chandef);
6873 if (netif_carrier_ok(dev))
6876 if (wdev->cac_started)
6879 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6887 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6890 if (!rdev->ops->start_radar_detection)
6893 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6894 if (WARN_ON(!cac_time_ms))
6895 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6897 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
6899 wdev->chandef = chandef;
6900 wdev->cac_started = true;
6901 wdev->cac_start_time = jiffies;
6902 wdev->cac_time_ms = cac_time_ms;
6907 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6910 struct net_device *dev = info->user_ptr[1];
6911 struct wireless_dev *wdev = dev->ieee80211_ptr;
6912 struct cfg80211_csa_settings params;
6913 /* csa_attrs is defined static to avoid waste of stack size - this
6914 * function is called under RTNL lock, so this should not be a problem.
6916 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6918 bool need_new_beacon = false;
6922 if (!rdev->ops->channel_switch ||
6923 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6926 switch (dev->ieee80211_ptr->iftype) {
6927 case NL80211_IFTYPE_AP:
6928 case NL80211_IFTYPE_P2P_GO:
6929 need_new_beacon = true;
6931 /* useless if AP is not running */
6932 if (!wdev->beacon_interval)
6935 case NL80211_IFTYPE_ADHOC:
6936 if (!wdev->ssid_len)
6939 case NL80211_IFTYPE_MESH_POINT:
6940 if (!wdev->mesh_id_len)
6947 memset(¶ms, 0, sizeof(params));
6949 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6950 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6953 /* only important for AP, IBSS and mesh create IEs internally */
6954 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6957 /* Even though the attribute is u32, the specification says
6958 * u8, so let's make sure we don't overflow.
6960 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6964 params.count = cs_count;
6966 if (!need_new_beacon)
6969 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6973 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6974 info->attrs[NL80211_ATTR_CSA_IES],
6979 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6983 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6986 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6987 if (!len || (len % sizeof(u16)))
6990 params.n_counter_offsets_beacon = len / sizeof(u16);
6991 if (rdev->wiphy.max_num_csa_counters &&
6992 (params.n_counter_offsets_beacon >
6993 rdev->wiphy.max_num_csa_counters))
6996 params.counter_offsets_beacon =
6997 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6999 /* sanity checks - counters should fit and be the same */
7000 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7001 u16 offset = params.counter_offsets_beacon[i];
7003 if (offset >= params.beacon_csa.tail_len)
7006 if (params.beacon_csa.tail[offset] != params.count)
7010 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
7011 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7012 if (!len || (len % sizeof(u16)))
7015 params.n_counter_offsets_presp = len / sizeof(u16);
7016 if (rdev->wiphy.max_num_csa_counters &&
7017 (params.n_counter_offsets_beacon >
7018 rdev->wiphy.max_num_csa_counters))
7021 params.counter_offsets_presp =
7022 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7024 /* sanity checks - counters should fit and be the same */
7025 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7026 u16 offset = params.counter_offsets_presp[i];
7028 if (offset >= params.beacon_csa.probe_resp_len)
7031 if (params.beacon_csa.probe_resp[offset] !=
7038 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
7042 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
7046 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7053 params.radar_required = true;
7055 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7056 params.block_tx = true;
7059 err = rdev_channel_switch(rdev, dev, ¶ms);
7065 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7067 struct cfg80211_registered_device *rdev,
7068 struct wireless_dev *wdev,
7069 struct cfg80211_internal_bss *intbss)
7071 struct cfg80211_bss *res = &intbss->pub;
7072 const struct cfg80211_bss_ies *ies;
7076 ASSERT_WDEV_LOCK(wdev);
7078 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
7079 NL80211_CMD_NEW_SCAN_RESULTS);
7083 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7085 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7086 goto nla_put_failure;
7088 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7089 goto nla_put_failure;
7090 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7092 goto nla_put_failure;
7094 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7096 goto nla_put_failure;
7097 if ((!is_zero_ether_addr(res->bssid) &&
7098 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
7099 goto nla_put_failure;
7102 /* indicate whether we have probe response data or not */
7103 if (rcu_access_pointer(res->proberesp_ies) &&
7104 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7105 goto fail_unlock_rcu;
7107 /* this pointer prefers to be pointed to probe response data
7108 * but is always valid
7110 ies = rcu_dereference(res->ies);
7112 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7114 goto fail_unlock_rcu;
7115 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7116 ies->len, ies->data))
7117 goto fail_unlock_rcu;
7120 /* and this pointer is always (unless driver didn't know) beacon data */
7121 ies = rcu_dereference(res->beacon_ies);
7122 if (ies && ies->from_beacon) {
7123 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7125 goto fail_unlock_rcu;
7126 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7127 ies->len, ies->data))
7128 goto fail_unlock_rcu;
7132 if (res->beacon_interval &&
7133 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7134 goto nla_put_failure;
7135 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7136 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
7137 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
7138 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7139 jiffies_to_msecs(jiffies - intbss->ts)))
7140 goto nla_put_failure;
7142 if (intbss->parent_tsf &&
7143 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7144 intbss->parent_tsf, NL80211_BSS_PAD) ||
7145 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7146 intbss->parent_bssid)))
7147 goto nla_put_failure;
7149 if (intbss->ts_boottime &&
7150 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7151 intbss->ts_boottime, NL80211_BSS_PAD))
7152 goto nla_put_failure;
7154 switch (rdev->wiphy.signal_type) {
7155 case CFG80211_SIGNAL_TYPE_MBM:
7156 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7157 goto nla_put_failure;
7159 case CFG80211_SIGNAL_TYPE_UNSPEC:
7160 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7161 goto nla_put_failure;
7167 switch (wdev->iftype) {
7168 case NL80211_IFTYPE_P2P_CLIENT:
7169 case NL80211_IFTYPE_STATION:
7170 if (intbss == wdev->current_bss &&
7171 nla_put_u32(msg, NL80211_BSS_STATUS,
7172 NL80211_BSS_STATUS_ASSOCIATED))
7173 goto nla_put_failure;
7175 case NL80211_IFTYPE_ADHOC:
7176 if (intbss == wdev->current_bss &&
7177 nla_put_u32(msg, NL80211_BSS_STATUS,
7178 NL80211_BSS_STATUS_IBSS_JOINED))
7179 goto nla_put_failure;
7185 nla_nest_end(msg, bss);
7187 genlmsg_end(msg, hdr);
7193 genlmsg_cancel(msg, hdr);
7197 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
7199 struct cfg80211_registered_device *rdev;
7200 struct cfg80211_internal_bss *scan;
7201 struct wireless_dev *wdev;
7202 int start = cb->args[2], idx = 0;
7205 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7210 spin_lock_bh(&rdev->bss_lock);
7211 cfg80211_bss_expire(rdev);
7213 cb->seq = rdev->bss_generation;
7215 list_for_each_entry(scan, &rdev->bss_list, list) {
7218 if (nl80211_send_bss(skb, cb,
7219 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7220 rdev, wdev, scan) < 0) {
7226 spin_unlock_bh(&rdev->bss_lock);
7230 nl80211_finish_wdev_dump(rdev);
7235 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
7236 int flags, struct net_device *dev,
7237 bool allow_radio_stats,
7238 struct survey_info *survey)
7241 struct nlattr *infoattr;
7243 /* skip radio stats if userspace didn't request them */
7244 if (!survey->channel && !allow_radio_stats)
7247 hdr = nl80211hdr_put(msg, portid, seq, flags,
7248 NL80211_CMD_NEW_SURVEY_RESULTS);
7252 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7253 goto nla_put_failure;
7255 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7257 goto nla_put_failure;
7259 if (survey->channel &&
7260 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
7261 survey->channel->center_freq))
7262 goto nla_put_failure;
7264 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7265 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7266 goto nla_put_failure;
7267 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7268 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7269 goto nla_put_failure;
7270 if ((survey->filled & SURVEY_INFO_TIME) &&
7271 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7272 survey->time, NL80211_SURVEY_INFO_PAD))
7273 goto nla_put_failure;
7274 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
7275 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7276 survey->time_busy, NL80211_SURVEY_INFO_PAD))
7277 goto nla_put_failure;
7278 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
7279 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7280 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
7281 goto nla_put_failure;
7282 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
7283 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7284 survey->time_rx, NL80211_SURVEY_INFO_PAD))
7285 goto nla_put_failure;
7286 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
7287 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7288 survey->time_tx, NL80211_SURVEY_INFO_PAD))
7289 goto nla_put_failure;
7290 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
7291 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7292 survey->time_scan, NL80211_SURVEY_INFO_PAD))
7293 goto nla_put_failure;
7295 nla_nest_end(msg, infoattr);
7297 genlmsg_end(msg, hdr);
7301 genlmsg_cancel(msg, hdr);
7305 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
7307 struct survey_info survey;
7308 struct cfg80211_registered_device *rdev;
7309 struct wireless_dev *wdev;
7310 int survey_idx = cb->args[2];
7314 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7318 /* prepare_wdev_dump parsed the attributes */
7319 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7321 if (!wdev->netdev) {
7326 if (!rdev->ops->dump_survey) {
7332 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
7338 /* don't send disabled channels, but do send non-channel data */
7339 if (survey.channel &&
7340 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
7345 if (nl80211_send_survey(skb,
7346 NETLINK_CB(cb->skb).portid,
7347 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7348 wdev->netdev, radio_stats, &survey) < 0)
7354 cb->args[2] = survey_idx;
7357 nl80211_finish_wdev_dump(rdev);
7361 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7363 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7364 NL80211_WPA_VERSION_2));
7367 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7370 struct net_device *dev = info->user_ptr[1];
7371 struct ieee80211_channel *chan;
7372 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7373 int err, ssid_len, ie_len = 0, sae_data_len = 0;
7374 enum nl80211_auth_type auth_type;
7375 struct key_parse key;
7376 bool local_state_change;
7378 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7381 if (!info->attrs[NL80211_ATTR_MAC])
7384 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7387 if (!info->attrs[NL80211_ATTR_SSID])
7390 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7393 err = nl80211_parse_key(info, &key);
7398 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7400 if (!key.p.key || !key.p.key_len)
7402 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7403 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7404 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7405 key.p.key_len != WLAN_KEY_LEN_WEP104))
7418 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7419 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7428 if (!rdev->ops->auth)
7431 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7432 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7435 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7436 chan = nl80211_get_valid_chan(&rdev->wiphy,
7437 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7441 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7442 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7444 if (info->attrs[NL80211_ATTR_IE]) {
7445 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7446 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7449 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7450 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
7453 if (auth_type == NL80211_AUTHTYPE_SAE &&
7454 !info->attrs[NL80211_ATTR_SAE_DATA])
7457 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7458 if (auth_type != NL80211_AUTHTYPE_SAE)
7460 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7461 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7462 /* need to include at least Auth Transaction and Status Code */
7463 if (sae_data_len < 4)
7467 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7470 * Since we no longer track auth state, ignore
7471 * requests to only change local state.
7473 if (local_state_change)
7476 wdev_lock(dev->ieee80211_ptr);
7477 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7478 ssid, ssid_len, ie, ie_len,
7479 key.p.key, key.p.key_len, key.idx,
7480 sae_data, sae_data_len);
7481 wdev_unlock(dev->ieee80211_ptr);
7485 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7486 struct genl_info *info,
7487 struct cfg80211_crypto_settings *settings,
7490 memset(settings, 0, sizeof(*settings));
7492 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7494 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7497 proto = nla_get_u16(
7498 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7499 settings->control_port_ethertype = cpu_to_be16(proto);
7500 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7503 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7504 settings->control_port_no_encrypt = true;
7506 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7508 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7512 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7513 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7514 settings->n_ciphers_pairwise = len / sizeof(u32);
7516 if (len % sizeof(u32))
7519 if (settings->n_ciphers_pairwise > cipher_limit)
7522 memcpy(settings->ciphers_pairwise, data, len);
7524 for (i = 0; i < settings->n_ciphers_pairwise; i++)
7525 if (!cfg80211_supported_cipher_suite(
7527 settings->ciphers_pairwise[i]))
7531 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7532 settings->cipher_group =
7533 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
7534 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7535 settings->cipher_group))
7539 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7540 settings->wpa_versions =
7541 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7542 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7546 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7550 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7551 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7552 settings->n_akm_suites = len / sizeof(u32);
7554 if (len % sizeof(u32))
7557 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7560 memcpy(settings->akm_suites, data, len);
7566 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7569 struct net_device *dev = info->user_ptr[1];
7570 struct ieee80211_channel *chan;
7571 struct cfg80211_assoc_request req = {};
7572 const u8 *bssid, *ssid;
7573 int err, ssid_len = 0;
7575 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7578 if (!info->attrs[NL80211_ATTR_MAC] ||
7579 !info->attrs[NL80211_ATTR_SSID] ||
7580 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7583 if (!rdev->ops->assoc)
7586 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7587 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7590 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7592 chan = nl80211_get_valid_chan(&rdev->wiphy,
7593 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7597 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7598 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7600 if (info->attrs[NL80211_ATTR_IE]) {
7601 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7602 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7605 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7606 enum nl80211_mfp mfp =
7607 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7608 if (mfp == NL80211_MFP_REQUIRED)
7610 else if (mfp != NL80211_MFP_NO)
7614 if (info->attrs[NL80211_ATTR_PREV_BSSID])
7615 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
7617 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7618 req.flags |= ASSOC_REQ_DISABLE_HT;
7620 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7621 memcpy(&req.ht_capa_mask,
7622 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7623 sizeof(req.ht_capa_mask));
7625 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7626 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7628 memcpy(&req.ht_capa,
7629 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7630 sizeof(req.ht_capa));
7633 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7634 req.flags |= ASSOC_REQ_DISABLE_VHT;
7636 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7637 memcpy(&req.vht_capa_mask,
7638 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7639 sizeof(req.vht_capa_mask));
7641 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7642 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7644 memcpy(&req.vht_capa,
7645 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7646 sizeof(req.vht_capa));
7649 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7650 if (!((rdev->wiphy.features &
7651 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
7652 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
7653 !wiphy_ext_feature_isset(&rdev->wiphy,
7654 NL80211_EXT_FEATURE_RRM))
7656 req.flags |= ASSOC_REQ_USE_RRM;
7659 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
7661 wdev_lock(dev->ieee80211_ptr);
7662 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7663 ssid, ssid_len, &req);
7664 wdev_unlock(dev->ieee80211_ptr);
7670 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7673 struct net_device *dev = info->user_ptr[1];
7674 const u8 *ie = NULL, *bssid;
7675 int ie_len = 0, err;
7677 bool local_state_change;
7679 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7682 if (!info->attrs[NL80211_ATTR_MAC])
7685 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7688 if (!rdev->ops->deauth)
7691 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7692 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7695 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7697 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7698 if (reason_code == 0) {
7699 /* Reason Code 0 is reserved */
7703 if (info->attrs[NL80211_ATTR_IE]) {
7704 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7705 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7708 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7710 wdev_lock(dev->ieee80211_ptr);
7711 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7712 local_state_change);
7713 wdev_unlock(dev->ieee80211_ptr);
7717 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7720 struct net_device *dev = info->user_ptr[1];
7721 const u8 *ie = NULL, *bssid;
7722 int ie_len = 0, err;
7724 bool local_state_change;
7726 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7729 if (!info->attrs[NL80211_ATTR_MAC])
7732 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7735 if (!rdev->ops->disassoc)
7738 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7739 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7742 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7744 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7745 if (reason_code == 0) {
7746 /* Reason Code 0 is reserved */
7750 if (info->attrs[NL80211_ATTR_IE]) {
7751 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7752 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7755 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7757 wdev_lock(dev->ieee80211_ptr);
7758 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7759 local_state_change);
7760 wdev_unlock(dev->ieee80211_ptr);
7765 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7766 int mcast_rate[NUM_NL80211_BANDS],
7769 struct wiphy *wiphy = &rdev->wiphy;
7773 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7774 struct ieee80211_supported_band *sband;
7776 sband = wiphy->bands[band];
7780 for (i = 0; i < sband->n_bitrates; i++) {
7781 if (sband->bitrates[i].bitrate == rateval) {
7782 mcast_rate[band] = i + 1;
7792 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7795 struct net_device *dev = info->user_ptr[1];
7796 struct cfg80211_ibss_params ibss;
7797 struct wiphy *wiphy;
7798 struct cfg80211_cached_keys *connkeys = NULL;
7801 memset(&ibss, 0, sizeof(ibss));
7803 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7806 if (!info->attrs[NL80211_ATTR_SSID] ||
7807 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7810 ibss.beacon_interval = 100;
7812 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
7813 ibss.beacon_interval =
7814 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7816 err = cfg80211_validate_beacon_int(rdev, ibss.beacon_interval);
7820 if (!rdev->ops->join_ibss)
7823 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7826 wiphy = &rdev->wiphy;
7828 if (info->attrs[NL80211_ATTR_MAC]) {
7829 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7831 if (!is_valid_ether_addr(ibss.bssid))
7834 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7835 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7837 if (info->attrs[NL80211_ATTR_IE]) {
7838 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7839 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7842 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7846 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7847 NL80211_IFTYPE_ADHOC))
7850 switch (ibss.chandef.width) {
7851 case NL80211_CHAN_WIDTH_5:
7852 case NL80211_CHAN_WIDTH_10:
7853 case NL80211_CHAN_WIDTH_20_NOHT:
7855 case NL80211_CHAN_WIDTH_20:
7856 case NL80211_CHAN_WIDTH_40:
7857 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7860 case NL80211_CHAN_WIDTH_80:
7861 case NL80211_CHAN_WIDTH_80P80:
7862 case NL80211_CHAN_WIDTH_160:
7863 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7865 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7866 NL80211_EXT_FEATURE_VHT_IBSS))
7873 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7874 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7876 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7878 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7880 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7881 struct ieee80211_supported_band *sband =
7882 wiphy->bands[ibss.chandef.chan->band];
7884 err = ieee80211_get_ratemask(sband, rates, n_rates,
7890 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7891 memcpy(&ibss.ht_capa_mask,
7892 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7893 sizeof(ibss.ht_capa_mask));
7895 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7896 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7898 memcpy(&ibss.ht_capa,
7899 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7900 sizeof(ibss.ht_capa));
7903 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7904 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7905 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7908 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7911 connkeys = nl80211_parse_connkeys(rdev,
7912 info->attrs[NL80211_ATTR_KEYS],
7914 if (IS_ERR(connkeys))
7915 return PTR_ERR(connkeys);
7917 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7925 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7927 ibss.userspace_handles_dfs =
7928 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7930 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7936 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7939 struct net_device *dev = info->user_ptr[1];
7941 if (!rdev->ops->leave_ibss)
7944 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7947 return cfg80211_leave_ibss(rdev, dev, false);
7950 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7953 struct net_device *dev = info->user_ptr[1];
7954 int mcast_rate[NUM_NL80211_BANDS];
7958 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7959 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7960 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
7963 if (!rdev->ops->set_mcast_rate)
7966 memset(mcast_rate, 0, sizeof(mcast_rate));
7968 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7971 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7972 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7975 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
7980 static struct sk_buff *
7981 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7982 struct wireless_dev *wdev, int approxlen,
7983 u32 portid, u32 seq, enum nl80211_commands cmd,
7984 enum nl80211_attrs attr,
7985 const struct nl80211_vendor_cmd_info *info,
7988 struct sk_buff *skb;
7990 struct nlattr *data;
7992 skb = nlmsg_new(approxlen + 100, gfp);
7996 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8002 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8003 goto nla_put_failure;
8006 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8008 goto nla_put_failure;
8009 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8011 goto nla_put_failure;
8015 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8016 wdev_id(wdev), NL80211_ATTR_PAD))
8017 goto nla_put_failure;
8019 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8020 wdev->netdev->ifindex))
8021 goto nla_put_failure;
8024 data = nla_nest_start(skb, attr);
8026 goto nla_put_failure;
8028 ((void **)skb->cb)[0] = rdev;
8029 ((void **)skb->cb)[1] = hdr;
8030 ((void **)skb->cb)[2] = data;
8039 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
8040 struct wireless_dev *wdev,
8041 enum nl80211_commands cmd,
8042 enum nl80211_attrs attr,
8043 int vendor_event_idx,
8044 int approxlen, gfp_t gfp)
8046 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
8047 const struct nl80211_vendor_cmd_info *info;
8050 case NL80211_CMD_TESTMODE:
8051 if (WARN_ON(vendor_event_idx != -1))
8055 case NL80211_CMD_VENDOR:
8056 if (WARN_ON(vendor_event_idx < 0 ||
8057 vendor_event_idx >= wiphy->n_vendor_events))
8059 info = &wiphy->vendor_events[vendor_event_idx];
8066 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
8067 cmd, attr, info, gfp);
8069 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8071 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8073 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8074 void *hdr = ((void **)skb->cb)[1];
8075 struct nlattr *data = ((void **)skb->cb)[2];
8076 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8078 /* clear CB data for netlink core to own from now on */
8079 memset(skb->cb, 0, sizeof(skb->cb));
8081 nla_nest_end(skb, data);
8082 genlmsg_end(skb, hdr);
8084 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8085 mcgrp = NL80211_MCGRP_VENDOR;
8087 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8090 EXPORT_SYMBOL(__cfg80211_send_event_skb);
8092 #ifdef CONFIG_NL80211_TESTMODE
8093 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8096 struct wireless_dev *wdev =
8097 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8100 if (!rdev->ops->testmode_cmd)
8104 err = PTR_ERR(wdev);
8108 } else if (wdev->wiphy != &rdev->wiphy) {
8112 if (!info->attrs[NL80211_ATTR_TESTDATA])
8115 rdev->cur_cmd_info = info;
8116 err = rdev_testmode_cmd(rdev, wdev,
8117 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8118 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
8119 rdev->cur_cmd_info = NULL;
8124 static int nl80211_testmode_dump(struct sk_buff *skb,
8125 struct netlink_callback *cb)
8127 struct cfg80211_registered_device *rdev;
8137 * 0 is a valid index, but not valid for args[0],
8138 * so we need to offset by 1.
8140 phy_idx = cb->args[0] - 1;
8142 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8143 nl80211_fam.attrbuf, nl80211_fam.maxattr,
8148 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
8149 nl80211_fam.attrbuf);
8151 err = PTR_ERR(rdev);
8154 phy_idx = rdev->wiphy_idx;
8157 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
8159 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
8163 data = nla_data((void *)cb->args[1]);
8164 data_len = nla_len((void *)cb->args[1]);
8167 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8173 if (!rdev->ops->testmode_dump) {
8179 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
8180 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8181 NL80211_CMD_TESTMODE);
8182 struct nlattr *tmdata;
8187 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
8188 genlmsg_cancel(skb, hdr);
8192 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8194 genlmsg_cancel(skb, hdr);
8197 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
8198 nla_nest_end(skb, tmdata);
8200 if (err == -ENOBUFS || err == -ENOENT) {
8201 genlmsg_cancel(skb, hdr);
8204 genlmsg_cancel(skb, hdr);
8208 genlmsg_end(skb, hdr);
8213 cb->args[0] = phy_idx + 1;
8220 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8223 struct net_device *dev = info->user_ptr[1];
8224 struct cfg80211_connect_params connect;
8225 struct wiphy *wiphy;
8226 struct cfg80211_cached_keys *connkeys = NULL;
8229 memset(&connect, 0, sizeof(connect));
8231 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8234 if (!info->attrs[NL80211_ATTR_SSID] ||
8235 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8238 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8240 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8241 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8242 NL80211_CMD_CONNECT))
8245 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8247 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8249 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
8250 NL80211_MAX_NR_CIPHER_SUITES);
8254 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8255 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8258 wiphy = &rdev->wiphy;
8260 connect.bg_scan_period = -1;
8261 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8262 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8263 connect.bg_scan_period =
8264 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8267 if (info->attrs[NL80211_ATTR_MAC])
8268 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8269 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8270 connect.bssid_hint =
8271 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
8272 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8273 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8275 if (info->attrs[NL80211_ATTR_IE]) {
8276 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8277 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8280 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8281 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8282 if (connect.mfp != NL80211_MFP_REQUIRED &&
8283 connect.mfp != NL80211_MFP_NO)
8286 connect.mfp = NL80211_MFP_NO;
8289 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8290 connect.prev_bssid =
8291 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8293 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8294 connect.channel = nl80211_get_valid_chan(
8295 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8296 if (!connect.channel)
8298 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
8299 connect.channel_hint = nl80211_get_valid_chan(
8300 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8301 if (!connect.channel_hint)
8305 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8306 connkeys = nl80211_parse_connkeys(rdev,
8307 info->attrs[NL80211_ATTR_KEYS], NULL);
8308 if (IS_ERR(connkeys))
8309 return PTR_ERR(connkeys);
8312 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8313 connect.flags |= ASSOC_REQ_DISABLE_HT;
8315 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8316 memcpy(&connect.ht_capa_mask,
8317 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8318 sizeof(connect.ht_capa_mask));
8320 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8321 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
8325 memcpy(&connect.ht_capa,
8326 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8327 sizeof(connect.ht_capa));
8330 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8331 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8333 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8334 memcpy(&connect.vht_capa_mask,
8335 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8336 sizeof(connect.vht_capa_mask));
8338 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8339 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
8343 memcpy(&connect.vht_capa,
8344 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8345 sizeof(connect.vht_capa));
8348 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8349 if (!((rdev->wiphy.features &
8350 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8351 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8352 !wiphy_ext_feature_isset(&rdev->wiphy,
8353 NL80211_EXT_FEATURE_RRM)) {
8357 connect.flags |= ASSOC_REQ_USE_RRM;
8360 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
8361 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
8366 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
8367 /* bss selection makes no sense if bssid is set */
8368 if (connect.bssid) {
8373 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
8374 wiphy, &connect.bss_select);
8381 wdev_lock(dev->ieee80211_ptr);
8382 err = cfg80211_connect(rdev, dev, &connect, connkeys,
8383 connect.prev_bssid);
8384 wdev_unlock(dev->ieee80211_ptr);
8390 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8392 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8393 struct net_device *dev = info->user_ptr[1];
8397 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8398 reason = WLAN_REASON_DEAUTH_LEAVING;
8400 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8405 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8406 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8409 wdev_lock(dev->ieee80211_ptr);
8410 ret = cfg80211_disconnect(rdev, dev, reason, true);
8411 wdev_unlock(dev->ieee80211_ptr);
8415 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8421 if (info->attrs[NL80211_ATTR_PID]) {
8422 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8424 net = get_net_ns_by_pid(pid);
8425 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8426 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
8428 net = get_net_ns_by_fd(fd);
8434 return PTR_ERR(net);
8438 /* check if anything to do */
8439 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8440 err = cfg80211_switch_netns(rdev, net);
8446 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8449 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8450 struct cfg80211_pmksa *pmksa) = NULL;
8451 struct net_device *dev = info->user_ptr[1];
8452 struct cfg80211_pmksa pmksa;
8454 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8456 if (!info->attrs[NL80211_ATTR_MAC])
8459 if (!info->attrs[NL80211_ATTR_PMKID])
8462 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8463 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8465 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8466 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8469 switch (info->genlhdr->cmd) {
8470 case NL80211_CMD_SET_PMKSA:
8471 rdev_ops = rdev->ops->set_pmksa;
8473 case NL80211_CMD_DEL_PMKSA:
8474 rdev_ops = rdev->ops->del_pmksa;
8484 return rdev_ops(&rdev->wiphy, dev, &pmksa);
8487 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8490 struct net_device *dev = info->user_ptr[1];
8492 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8493 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8496 if (!rdev->ops->flush_pmksa)
8499 return rdev_flush_pmksa(rdev, dev);
8502 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8505 struct net_device *dev = info->user_ptr[1];
8506 u8 action_code, dialog_token;
8507 u32 peer_capability = 0;
8512 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8513 !rdev->ops->tdls_mgmt)
8516 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8517 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8518 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8519 !info->attrs[NL80211_ATTR_IE] ||
8520 !info->attrs[NL80211_ATTR_MAC])
8523 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8524 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8525 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8526 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
8527 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
8528 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8530 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
8532 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
8533 dialog_token, status_code, peer_capability,
8535 nla_data(info->attrs[NL80211_ATTR_IE]),
8536 nla_len(info->attrs[NL80211_ATTR_IE]));
8539 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8542 struct net_device *dev = info->user_ptr[1];
8543 enum nl80211_tdls_operation operation;
8546 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8547 !rdev->ops->tdls_oper)
8550 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8551 !info->attrs[NL80211_ATTR_MAC])
8554 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8555 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8557 return rdev_tdls_oper(rdev, dev, peer, operation);
8560 static int nl80211_remain_on_channel(struct sk_buff *skb,
8561 struct genl_info *info)
8563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8564 struct wireless_dev *wdev = info->user_ptr[1];
8565 struct cfg80211_chan_def chandef;
8566 struct sk_buff *msg;
8572 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8573 !info->attrs[NL80211_ATTR_DURATION])
8576 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8578 if (!rdev->ops->remain_on_channel ||
8579 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8583 * We should be on that channel for at least a minimum amount of
8584 * time (10ms) but no longer than the driver supports.
8586 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8587 duration > rdev->wiphy.max_remain_on_channel_duration)
8590 err = nl80211_parse_chandef(rdev, info, &chandef);
8594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8598 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8599 NL80211_CMD_REMAIN_ON_CHANNEL);
8605 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8611 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
8613 goto nla_put_failure;
8615 genlmsg_end(msg, hdr);
8617 return genlmsg_reply(msg, info);
8626 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8627 struct genl_info *info)
8629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8630 struct wireless_dev *wdev = info->user_ptr[1];
8633 if (!info->attrs[NL80211_ATTR_COOKIE])
8636 if (!rdev->ops->cancel_remain_on_channel)
8639 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8641 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
8644 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8645 u8 *rates, u8 rates_len)
8650 for (i = 0; i < rates_len; i++) {
8651 int rate = (rates[i] & 0x7f) * 5;
8654 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8655 struct ieee80211_rate *srate =
8656 &sband->bitrates[ridx];
8657 if (rate == srate->bitrate) {
8662 if (ridx == sband->n_bitrates)
8663 return 0; /* rate not found */
8669 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8670 u8 *rates, u8 rates_len,
8671 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8675 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8677 for (i = 0; i < rates_len; i++) {
8680 ridx = rates[i] / 8;
8681 rbit = BIT(rates[i] % 8);
8683 /* check validity */
8684 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
8687 /* check availability */
8688 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8697 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8701 switch (vht_mcs_map) {
8702 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8704 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8707 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8710 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8720 static void vht_build_mcs_mask(u16 vht_mcs_map,
8721 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8725 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8726 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8731 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8732 struct nl80211_txrate_vht *txrate,
8733 u16 mcs[NL80211_VHT_NSS_MAX])
8735 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8736 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8739 if (!sband->vht_cap.vht_supported)
8742 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8744 /* Build vht_mcs_mask from VHT capabilities */
8745 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8747 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8748 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8749 mcs[i] = txrate->mcs[i];
8757 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
8758 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8759 .len = NL80211_MAX_SUPP_RATES },
8760 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8761 .len = NL80211_MAX_SUPP_HT_RATES },
8762 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
8763 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
8766 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8767 struct genl_info *info)
8769 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
8770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8771 struct cfg80211_bitrate_mask mask;
8773 struct net_device *dev = info->user_ptr[1];
8774 struct nlattr *tx_rates;
8775 struct ieee80211_supported_band *sband;
8778 if (!rdev->ops->set_bitrate_mask)
8781 memset(&mask, 0, sizeof(mask));
8782 /* Default to all rates enabled */
8783 for (i = 0; i < NUM_NL80211_BANDS; i++) {
8784 sband = rdev->wiphy.bands[i];
8789 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
8790 memcpy(mask.control[i].ht_mcs,
8791 sband->ht_cap.mcs.rx_mask,
8792 sizeof(mask.control[i].ht_mcs));
8794 if (!sband->vht_cap.vht_supported)
8797 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8798 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
8801 /* if no rates are given set it back to the defaults */
8802 if (!info->attrs[NL80211_ATTR_TX_RATES])
8806 * The nested attribute uses enum nl80211_band as the index. This maps
8807 * directly to the enum nl80211_band values used in cfg80211.
8809 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
8810 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
8811 enum nl80211_band band = nla_type(tx_rates);
8814 if (band < 0 || band >= NUM_NL80211_BANDS)
8816 sband = rdev->wiphy.bands[band];
8819 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8820 nla_len(tx_rates), nl80211_txattr_policy);
8823 if (tb[NL80211_TXRATE_LEGACY]) {
8824 mask.control[band].legacy = rateset_to_mask(
8826 nla_data(tb[NL80211_TXRATE_LEGACY]),
8827 nla_len(tb[NL80211_TXRATE_LEGACY]));
8828 if ((mask.control[band].legacy == 0) &&
8829 nla_len(tb[NL80211_TXRATE_LEGACY]))
8832 if (tb[NL80211_TXRATE_HT]) {
8833 if (!ht_rateset_to_mask(
8835 nla_data(tb[NL80211_TXRATE_HT]),
8836 nla_len(tb[NL80211_TXRATE_HT]),
8837 mask.control[band].ht_mcs))
8840 if (tb[NL80211_TXRATE_VHT]) {
8841 if (!vht_set_mcs_mask(
8843 nla_data(tb[NL80211_TXRATE_VHT]),
8844 mask.control[band].vht_mcs))
8847 if (tb[NL80211_TXRATE_GI]) {
8848 mask.control[band].gi =
8849 nla_get_u8(tb[NL80211_TXRATE_GI]);
8850 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8854 if (mask.control[band].legacy == 0) {
8855 /* don't allow empty legacy rates if HT or VHT
8856 * are not even supported.
8858 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8859 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8862 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8863 if (mask.control[band].ht_mcs[i])
8866 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8867 if (mask.control[band].vht_mcs[i])
8870 /* legacy and mcs rates may not be both empty */
8876 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8879 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8882 struct wireless_dev *wdev = info->user_ptr[1];
8883 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8885 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8888 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8889 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8891 switch (wdev->iftype) {
8892 case NL80211_IFTYPE_STATION:
8893 case NL80211_IFTYPE_ADHOC:
8894 case NL80211_IFTYPE_P2P_CLIENT:
8895 case NL80211_IFTYPE_AP:
8896 case NL80211_IFTYPE_AP_VLAN:
8897 case NL80211_IFTYPE_MESH_POINT:
8898 case NL80211_IFTYPE_P2P_GO:
8899 case NL80211_IFTYPE_P2P_DEVICE:
8905 /* not much point in registering if we can't reply */
8906 if (!rdev->ops->mgmt_tx)
8909 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8910 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8911 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8914 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8917 struct wireless_dev *wdev = info->user_ptr[1];
8918 struct cfg80211_chan_def chandef;
8922 struct sk_buff *msg = NULL;
8923 struct cfg80211_mgmt_tx_params params = {
8924 .dont_wait_for_ack =
8925 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8928 if (!info->attrs[NL80211_ATTR_FRAME])
8931 if (!rdev->ops->mgmt_tx)
8934 switch (wdev->iftype) {
8935 case NL80211_IFTYPE_P2P_DEVICE:
8936 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8938 case NL80211_IFTYPE_STATION:
8939 case NL80211_IFTYPE_ADHOC:
8940 case NL80211_IFTYPE_P2P_CLIENT:
8941 case NL80211_IFTYPE_AP:
8942 case NL80211_IFTYPE_AP_VLAN:
8943 case NL80211_IFTYPE_MESH_POINT:
8944 case NL80211_IFTYPE_P2P_GO:
8950 if (info->attrs[NL80211_ATTR_DURATION]) {
8951 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8953 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8956 * We should wait on the channel for at least a minimum amount
8957 * of time (10ms) but no longer than the driver supports.
8959 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8960 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8964 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8966 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8969 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8971 /* get the channel if any has been specified, otherwise pass NULL to
8972 * the driver. The latter will use the current one
8974 chandef.chan = NULL;
8975 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8976 err = nl80211_parse_chandef(rdev, info, &chandef);
8981 if (!chandef.chan && params.offchan)
8984 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8985 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8987 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8988 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8991 if (len % sizeof(u16))
8994 params.n_csa_offsets = len / sizeof(u16);
8995 params.csa_offsets =
8996 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8998 /* check that all the offsets fit the frame */
8999 for (i = 0; i < params.n_csa_offsets; i++) {
9000 if (params.csa_offsets[i] >= params.len)
9005 if (!params.dont_wait_for_ack) {
9006 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9010 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9018 params.chan = chandef.chan;
9019 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
9024 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9026 goto nla_put_failure;
9028 genlmsg_end(msg, hdr);
9029 return genlmsg_reply(msg, info);
9041 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9044 struct wireless_dev *wdev = info->user_ptr[1];
9047 if (!info->attrs[NL80211_ATTR_COOKIE])
9050 if (!rdev->ops->mgmt_tx_cancel_wait)
9053 switch (wdev->iftype) {
9054 case NL80211_IFTYPE_STATION:
9055 case NL80211_IFTYPE_ADHOC:
9056 case NL80211_IFTYPE_P2P_CLIENT:
9057 case NL80211_IFTYPE_AP:
9058 case NL80211_IFTYPE_AP_VLAN:
9059 case NL80211_IFTYPE_P2P_GO:
9060 case NL80211_IFTYPE_P2P_DEVICE:
9066 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9068 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
9071 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9073 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9074 struct wireless_dev *wdev;
9075 struct net_device *dev = info->user_ptr[1];
9080 if (!info->attrs[NL80211_ATTR_PS_STATE])
9083 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9085 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9088 wdev = dev->ieee80211_ptr;
9090 if (!rdev->ops->set_power_mgmt)
9093 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9095 if (state == wdev->ps)
9098 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
9104 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9107 enum nl80211_ps_state ps_state;
9108 struct wireless_dev *wdev;
9109 struct net_device *dev = info->user_ptr[1];
9110 struct sk_buff *msg;
9114 wdev = dev->ieee80211_ptr;
9116 if (!rdev->ops->set_power_mgmt)
9119 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9123 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9124 NL80211_CMD_GET_POWER_SAVE);
9131 ps_state = NL80211_PS_ENABLED;
9133 ps_state = NL80211_PS_DISABLED;
9135 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9136 goto nla_put_failure;
9138 genlmsg_end(msg, hdr);
9139 return genlmsg_reply(msg, info);
9148 static const struct nla_policy
9149 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
9150 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
9151 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9152 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
9153 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9154 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9155 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
9158 static int nl80211_set_cqm_txe(struct genl_info *info,
9159 u32 rate, u32 pkts, u32 intvl)
9161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9162 struct net_device *dev = info->user_ptr[1];
9163 struct wireless_dev *wdev = dev->ieee80211_ptr;
9165 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
9168 if (!rdev->ops->set_cqm_txe_config)
9171 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9172 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9175 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
9178 static int nl80211_set_cqm_rssi(struct genl_info *info,
9179 s32 threshold, u32 hysteresis)
9181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9182 struct net_device *dev = info->user_ptr[1];
9183 struct wireless_dev *wdev = dev->ieee80211_ptr;
9188 /* disabling - hysteresis should also be zero then */
9192 if (!rdev->ops->set_cqm_rssi_config)
9195 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9196 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9199 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
9202 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9204 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9208 cqm = info->attrs[NL80211_ATTR_CQM];
9212 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9213 nl80211_attr_cqm_policy);
9217 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9218 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
9219 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9220 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
9222 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
9225 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9226 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9227 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9228 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9229 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9230 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9232 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9238 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9241 struct net_device *dev = info->user_ptr[1];
9242 struct ocb_setup setup = {};
9245 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9249 return cfg80211_join_ocb(rdev, dev, &setup);
9252 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9255 struct net_device *dev = info->user_ptr[1];
9257 return cfg80211_leave_ocb(rdev, dev);
9260 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9263 struct net_device *dev = info->user_ptr[1];
9264 struct mesh_config cfg;
9265 struct mesh_setup setup;
9268 /* start with default */
9269 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
9270 memcpy(&setup, &default_mesh_setup, sizeof(setup));
9272 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
9273 /* and parse parameters if given */
9274 err = nl80211_parse_mesh_config(info, &cfg, NULL);
9279 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9280 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9283 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9284 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9286 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9287 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9288 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9291 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9292 setup.beacon_interval =
9293 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9295 err = cfg80211_validate_beacon_int(rdev, setup.beacon_interval);
9300 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9302 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9303 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9307 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9308 /* parse additional setup parameters if given */
9309 err = nl80211_parse_mesh_setup(info, &setup);
9315 cfg.auto_open_plinks = false;
9317 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9318 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9322 /* cfg80211_join_mesh() will sort it out */
9323 setup.chandef.chan = NULL;
9326 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9327 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9329 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9330 struct ieee80211_supported_band *sband;
9332 if (!setup.chandef.chan)
9335 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9337 err = ieee80211_get_ratemask(sband, rates, n_rates,
9338 &setup.basic_rates);
9343 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
9346 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
9348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9349 struct net_device *dev = info->user_ptr[1];
9351 return cfg80211_leave_mesh(rdev, dev);
9355 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
9356 struct cfg80211_registered_device *rdev)
9358 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
9359 struct nlattr *nl_pats, *nl_pat;
9362 if (!wowlan->n_patterns)
9365 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
9369 for (i = 0; i < wowlan->n_patterns; i++) {
9370 nl_pat = nla_nest_start(msg, i + 1);
9373 pat_len = wowlan->patterns[i].pattern_len;
9374 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
9375 wowlan->patterns[i].mask) ||
9376 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9377 wowlan->patterns[i].pattern) ||
9378 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9379 wowlan->patterns[i].pkt_offset))
9381 nla_nest_end(msg, nl_pat);
9383 nla_nest_end(msg, nl_pats);
9388 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
9389 struct cfg80211_wowlan_tcp *tcp)
9391 struct nlattr *nl_tcp;
9396 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9400 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9401 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
9402 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9403 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9404 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9405 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9406 tcp->payload_len, tcp->payload) ||
9407 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9408 tcp->data_interval) ||
9409 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9410 tcp->wake_len, tcp->wake_data) ||
9411 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9412 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9415 if (tcp->payload_seq.len &&
9416 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9417 sizeof(tcp->payload_seq), &tcp->payload_seq))
9420 if (tcp->payload_tok.len &&
9421 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9422 sizeof(tcp->payload_tok) + tcp->tokens_size,
9426 nla_nest_end(msg, nl_tcp);
9431 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9432 struct cfg80211_sched_scan_request *req)
9434 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
9440 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9444 if (req->n_scan_plans == 1 &&
9445 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9446 req->scan_plans[0].interval * 1000))
9449 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9452 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9456 for (i = 0; i < req->n_channels; i++)
9457 nla_put_u32(msg, i, req->channels[i]->center_freq);
9459 nla_nest_end(msg, freqs);
9461 if (req->n_match_sets) {
9462 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9466 for (i = 0; i < req->n_match_sets; i++) {
9467 match = nla_nest_start(msg, i);
9471 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9472 req->match_sets[i].ssid.ssid_len,
9473 req->match_sets[i].ssid.ssid);
9474 nla_nest_end(msg, match);
9476 nla_nest_end(msg, matches);
9479 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9483 for (i = 0; i < req->n_scan_plans; i++) {
9484 scan_plan = nla_nest_start(msg, i + 1);
9489 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9490 req->scan_plans[i].interval) ||
9491 (req->scan_plans[i].iterations &&
9492 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9493 req->scan_plans[i].iterations)))
9495 nla_nest_end(msg, scan_plan);
9497 nla_nest_end(msg, scan_plans);
9499 nla_nest_end(msg, nd);
9504 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9507 struct sk_buff *msg;
9509 u32 size = NLMSG_DEFAULT_SIZE;
9511 if (!rdev->wiphy.wowlan)
9514 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
9515 /* adjust size to have room for all the data */
9516 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9517 rdev->wiphy.wowlan_config->tcp->payload_len +
9518 rdev->wiphy.wowlan_config->tcp->wake_len +
9519 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
9522 msg = nlmsg_new(size, GFP_KERNEL);
9526 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9527 NL80211_CMD_GET_WOWLAN);
9529 goto nla_put_failure;
9531 if (rdev->wiphy.wowlan_config) {
9532 struct nlattr *nl_wowlan;
9534 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9536 goto nla_put_failure;
9538 if ((rdev->wiphy.wowlan_config->any &&
9539 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9540 (rdev->wiphy.wowlan_config->disconnect &&
9541 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9542 (rdev->wiphy.wowlan_config->magic_pkt &&
9543 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9544 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9545 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9546 (rdev->wiphy.wowlan_config->eap_identity_req &&
9547 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9548 (rdev->wiphy.wowlan_config->four_way_handshake &&
9549 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9550 (rdev->wiphy.wowlan_config->rfkill_release &&
9551 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9552 goto nla_put_failure;
9554 if (nl80211_send_wowlan_patterns(msg, rdev))
9555 goto nla_put_failure;
9557 if (nl80211_send_wowlan_tcp(msg,
9558 rdev->wiphy.wowlan_config->tcp))
9559 goto nla_put_failure;
9561 if (nl80211_send_wowlan_nd(
9563 rdev->wiphy.wowlan_config->nd_config))
9564 goto nla_put_failure;
9566 nla_nest_end(msg, nl_wowlan);
9569 genlmsg_end(msg, hdr);
9570 return genlmsg_reply(msg, info);
9577 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9578 struct nlattr *attr,
9579 struct cfg80211_wowlan *trig)
9581 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9582 struct cfg80211_wowlan_tcp *cfg;
9583 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9584 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9586 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9589 if (!rdev->wiphy.wowlan->tcp)
9592 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9593 nla_data(attr), nla_len(attr),
9594 nl80211_wowlan_tcp_policy);
9598 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9599 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9600 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9601 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9602 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9603 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9604 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9605 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9608 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
9609 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
9612 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
9613 rdev->wiphy.wowlan->tcp->data_interval_max ||
9614 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
9617 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
9618 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
9621 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9622 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9625 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9626 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9628 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9629 tokens_size = tokln - sizeof(*tok);
9631 if (!tok->len || tokens_size % tok->len)
9633 if (!rdev->wiphy.wowlan->tcp->tok)
9635 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9637 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9639 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9641 if (tok->offset + tok->len > data_size)
9645 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9646 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9647 if (!rdev->wiphy.wowlan->tcp->seq)
9649 if (seq->len == 0 || seq->len > 4)
9651 if (seq->len + seq->offset > data_size)
9655 size = sizeof(*cfg);
9657 size += wake_size + wake_mask_size;
9658 size += tokens_size;
9660 cfg = kzalloc(size, GFP_KERNEL);
9663 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9664 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9665 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9667 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9668 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9672 /* allocate a socket and port for it and use it */
9673 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9674 IPPROTO_TCP, &cfg->sock, 1);
9679 if (inet_csk_get_port(cfg->sock->sk, port)) {
9680 sock_release(cfg->sock);
9684 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9690 cfg->src_port = port;
9693 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9694 cfg->payload_len = data_size;
9695 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9696 memcpy((void *)cfg->payload,
9697 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9700 cfg->payload_seq = *seq;
9701 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9702 cfg->wake_len = wake_size;
9703 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9704 memcpy((void *)cfg->wake_data,
9705 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9707 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9708 data_size + wake_size;
9709 memcpy((void *)cfg->wake_mask,
9710 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9713 cfg->tokens_size = tokens_size;
9714 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9722 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9723 const struct wiphy_wowlan_support *wowlan,
9724 struct nlattr *attr,
9725 struct cfg80211_wowlan *trig)
9730 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9734 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9739 err = nla_parse(tb, NL80211_ATTR_MAX,
9740 nla_data(attr), nla_len(attr),
9745 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9746 err = PTR_ERR_OR_ZERO(trig->nd_config);
9748 trig->nd_config = NULL;
9755 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9757 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9758 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9759 struct cfg80211_wowlan new_triggers = {};
9760 struct cfg80211_wowlan *ntrig;
9761 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9763 bool prev_enabled = rdev->wiphy.wowlan_config;
9764 bool regular = false;
9769 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9770 cfg80211_rdev_free_wowlan(rdev);
9771 rdev->wiphy.wowlan_config = NULL;
9775 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9776 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9777 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9778 nl80211_wowlan_policy);
9782 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9783 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9785 new_triggers.any = true;
9788 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9789 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9791 new_triggers.disconnect = true;
9795 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9796 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9798 new_triggers.magic_pkt = true;
9802 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9805 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9806 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9808 new_triggers.gtk_rekey_failure = true;
9812 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9813 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9815 new_triggers.eap_identity_req = true;
9819 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9820 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9822 new_triggers.four_way_handshake = true;
9826 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9827 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9829 new_triggers.rfkill_release = true;
9833 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9836 int rem, pat_len, mask_len, pkt_offset;
9837 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9841 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9844 if (n_patterns > wowlan->n_patterns)
9847 new_triggers.patterns = kcalloc(n_patterns,
9848 sizeof(new_triggers.patterns[0]),
9850 if (!new_triggers.patterns)
9853 new_triggers.n_patterns = n_patterns;
9856 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9860 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9861 nla_len(pat), NULL);
9863 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9864 !pat_tb[NL80211_PKTPAT_PATTERN])
9866 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9867 mask_len = DIV_ROUND_UP(pat_len, 8);
9868 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9870 if (pat_len > wowlan->pattern_max_len ||
9871 pat_len < wowlan->pattern_min_len)
9874 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9877 pkt_offset = nla_get_u32(
9878 pat_tb[NL80211_PKTPAT_OFFSET]);
9879 if (pkt_offset > wowlan->max_pkt_offset)
9881 new_triggers.patterns[i].pkt_offset = pkt_offset;
9883 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9888 new_triggers.patterns[i].mask = mask_pat;
9889 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9891 mask_pat += mask_len;
9892 new_triggers.patterns[i].pattern = mask_pat;
9893 new_triggers.patterns[i].pattern_len = pat_len;
9895 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9901 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9903 err = nl80211_parse_wowlan_tcp(
9904 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9910 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9912 err = nl80211_parse_wowlan_nd(
9913 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9919 /* The 'any' trigger means the device continues operating more or less
9920 * as in its normal operation mode and wakes up the host on most of the
9921 * normal interrupts (like packet RX, ...)
9922 * It therefore makes little sense to combine with the more constrained
9923 * wakeup trigger modes.
9925 if (new_triggers.any && regular) {
9930 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9935 cfg80211_rdev_free_wowlan(rdev);
9936 rdev->wiphy.wowlan_config = ntrig;
9939 if (rdev->ops->set_wakeup &&
9940 prev_enabled != !!rdev->wiphy.wowlan_config)
9941 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9945 for (i = 0; i < new_triggers.n_patterns; i++)
9946 kfree(new_triggers.patterns[i].mask);
9947 kfree(new_triggers.patterns);
9948 if (new_triggers.tcp && new_triggers.tcp->sock)
9949 sock_release(new_triggers.tcp->sock);
9950 kfree(new_triggers.tcp);
9951 kfree(new_triggers.nd_config);
9956 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9957 struct cfg80211_registered_device *rdev)
9959 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9961 struct cfg80211_coalesce_rules *rule;
9963 if (!rdev->coalesce->n_rules)
9966 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9970 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9971 nl_rule = nla_nest_start(msg, i + 1);
9975 rule = &rdev->coalesce->rules[i];
9976 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9980 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9984 nl_pats = nla_nest_start(msg,
9985 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9989 for (j = 0; j < rule->n_patterns; j++) {
9990 nl_pat = nla_nest_start(msg, j + 1);
9993 pat_len = rule->patterns[j].pattern_len;
9994 if (nla_put(msg, NL80211_PKTPAT_MASK,
9995 DIV_ROUND_UP(pat_len, 8),
9996 rule->patterns[j].mask) ||
9997 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9998 rule->patterns[j].pattern) ||
9999 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10000 rule->patterns[j].pkt_offset))
10002 nla_nest_end(msg, nl_pat);
10004 nla_nest_end(msg, nl_pats);
10005 nla_nest_end(msg, nl_rule);
10007 nla_nest_end(msg, nl_rules);
10012 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10015 struct sk_buff *msg;
10018 if (!rdev->wiphy.coalesce)
10019 return -EOPNOTSUPP;
10021 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10025 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10026 NL80211_CMD_GET_COALESCE);
10028 goto nla_put_failure;
10030 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10031 goto nla_put_failure;
10033 genlmsg_end(msg, hdr);
10034 return genlmsg_reply(msg, info);
10041 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10043 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10045 struct cfg80211_coalesce_rules *rule;
10050 for (i = 0; i < coalesce->n_rules; i++) {
10051 rule = &coalesce->rules[i];
10052 for (j = 0; j < rule->n_patterns; j++)
10053 kfree(rule->patterns[j].mask);
10054 kfree(rule->patterns);
10056 kfree(coalesce->rules);
10058 rdev->coalesce = NULL;
10061 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10062 struct nlattr *rule,
10063 struct cfg80211_coalesce_rules *new_rule)
10066 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10067 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10068 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10069 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10071 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
10072 nla_len(rule), nl80211_coalesce_policy);
10076 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10078 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10079 if (new_rule->delay > coalesce->max_delay)
10082 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10083 new_rule->condition =
10084 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10085 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10086 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10089 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10092 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10095 if (n_patterns > coalesce->n_patterns)
10098 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10100 if (!new_rule->patterns)
10103 new_rule->n_patterns = n_patterns;
10106 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10110 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
10111 nla_len(pat), NULL);
10112 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10113 !pat_tb[NL80211_PKTPAT_PATTERN])
10115 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10116 mask_len = DIV_ROUND_UP(pat_len, 8);
10117 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10119 if (pat_len > coalesce->pattern_max_len ||
10120 pat_len < coalesce->pattern_min_len)
10123 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10126 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10127 if (pkt_offset > coalesce->max_pkt_offset)
10129 new_rule->patterns[i].pkt_offset = pkt_offset;
10131 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10135 new_rule->patterns[i].mask = mask_pat;
10136 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10139 mask_pat += mask_len;
10140 new_rule->patterns[i].pattern = mask_pat;
10141 new_rule->patterns[i].pattern_len = pat_len;
10142 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10150 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10153 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10154 struct cfg80211_coalesce new_coalesce = {};
10155 struct cfg80211_coalesce *n_coalesce;
10156 int err, rem_rule, n_rules = 0, i, j;
10157 struct nlattr *rule;
10158 struct cfg80211_coalesce_rules *tmp_rule;
10160 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10161 return -EOPNOTSUPP;
10163 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10164 cfg80211_rdev_free_coalesce(rdev);
10165 rdev_set_coalesce(rdev, NULL);
10169 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10172 if (n_rules > coalesce->n_rules)
10175 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10177 if (!new_coalesce.rules)
10180 new_coalesce.n_rules = n_rules;
10183 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10185 err = nl80211_parse_coalesce_rule(rdev, rule,
10186 &new_coalesce.rules[i]);
10193 err = rdev_set_coalesce(rdev, &new_coalesce);
10197 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10202 cfg80211_rdev_free_coalesce(rdev);
10203 rdev->coalesce = n_coalesce;
10207 for (i = 0; i < new_coalesce.n_rules; i++) {
10208 tmp_rule = &new_coalesce.rules[i];
10209 for (j = 0; j < tmp_rule->n_patterns; j++)
10210 kfree(tmp_rule->patterns[j].mask);
10211 kfree(tmp_rule->patterns);
10213 kfree(new_coalesce.rules);
10218 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10221 struct net_device *dev = info->user_ptr[1];
10222 struct wireless_dev *wdev = dev->ieee80211_ptr;
10223 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10224 struct cfg80211_gtk_rekey_data rekey_data;
10227 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10230 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
10231 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
10232 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
10233 nl80211_rekey_policy);
10237 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10239 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10241 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10244 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10245 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10246 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
10249 if (!wdev->current_bss) {
10254 if (!rdev->ops->set_rekey_data) {
10259 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
10265 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10266 struct genl_info *info)
10268 struct net_device *dev = info->user_ptr[1];
10269 struct wireless_dev *wdev = dev->ieee80211_ptr;
10271 if (wdev->iftype != NL80211_IFTYPE_AP &&
10272 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10275 if (wdev->ap_unexpected_nlportid)
10278 wdev->ap_unexpected_nlportid = info->snd_portid;
10282 static int nl80211_probe_client(struct sk_buff *skb,
10283 struct genl_info *info)
10285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10286 struct net_device *dev = info->user_ptr[1];
10287 struct wireless_dev *wdev = dev->ieee80211_ptr;
10288 struct sk_buff *msg;
10294 if (wdev->iftype != NL80211_IFTYPE_AP &&
10295 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10296 return -EOPNOTSUPP;
10298 if (!info->attrs[NL80211_ATTR_MAC])
10301 if (!rdev->ops->probe_client)
10302 return -EOPNOTSUPP;
10304 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10308 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10309 NL80211_CMD_PROBE_CLIENT);
10315 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10317 err = rdev_probe_client(rdev, dev, addr, &cookie);
10321 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10323 goto nla_put_failure;
10325 genlmsg_end(msg, hdr);
10327 return genlmsg_reply(msg, info);
10336 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
10338 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10339 struct cfg80211_beacon_registration *reg, *nreg;
10342 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
10343 return -EOPNOTSUPP;
10345 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
10349 /* First, check if already registered. */
10350 spin_lock_bh(&rdev->beacon_registrations_lock);
10351 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10352 if (reg->nlportid == info->snd_portid) {
10357 /* Add it to the list */
10358 nreg->nlportid = info->snd_portid;
10359 list_add(&nreg->list, &rdev->beacon_registrations);
10361 spin_unlock_bh(&rdev->beacon_registrations_lock);
10365 spin_unlock_bh(&rdev->beacon_registrations_lock);
10370 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
10372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10373 struct wireless_dev *wdev = info->user_ptr[1];
10376 if (!rdev->ops->start_p2p_device)
10377 return -EOPNOTSUPP;
10379 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10380 return -EOPNOTSUPP;
10382 if (wdev->p2p_started)
10385 if (rfkill_blocked(rdev->rfkill))
10388 err = rdev_start_p2p_device(rdev, wdev);
10392 wdev->p2p_started = true;
10398 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
10400 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10401 struct wireless_dev *wdev = info->user_ptr[1];
10403 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10404 return -EOPNOTSUPP;
10406 if (!rdev->ops->stop_p2p_device)
10407 return -EOPNOTSUPP;
10409 cfg80211_stop_p2p_device(rdev, wdev);
10414 static int nl80211_get_protocol_features(struct sk_buff *skb,
10415 struct genl_info *info)
10418 struct sk_buff *msg;
10420 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10424 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10425 NL80211_CMD_GET_PROTOCOL_FEATURES);
10427 goto nla_put_failure;
10429 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10430 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10431 goto nla_put_failure;
10433 genlmsg_end(msg, hdr);
10434 return genlmsg_reply(msg, info);
10441 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10444 struct cfg80211_update_ft_ies_params ft_params;
10445 struct net_device *dev = info->user_ptr[1];
10447 if (!rdev->ops->update_ft_ies)
10448 return -EOPNOTSUPP;
10450 if (!info->attrs[NL80211_ATTR_MDID] ||
10451 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10454 memset(&ft_params, 0, sizeof(ft_params));
10455 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10456 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10457 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10459 return rdev_update_ft_ies(rdev, dev, &ft_params);
10462 static int nl80211_crit_protocol_start(struct sk_buff *skb,
10463 struct genl_info *info)
10465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10466 struct wireless_dev *wdev = info->user_ptr[1];
10467 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10471 if (!rdev->ops->crit_proto_start)
10472 return -EOPNOTSUPP;
10474 if (WARN_ON(!rdev->ops->crit_proto_stop))
10477 if (rdev->crit_proto_nlportid)
10480 /* determine protocol if provided */
10481 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10482 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10484 if (proto >= NUM_NL80211_CRIT_PROTO)
10487 /* timeout must be provided */
10488 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10492 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10494 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10497 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10499 rdev->crit_proto_nlportid = info->snd_portid;
10504 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10505 struct genl_info *info)
10507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10508 struct wireless_dev *wdev = info->user_ptr[1];
10510 if (!rdev->ops->crit_proto_stop)
10511 return -EOPNOTSUPP;
10513 if (rdev->crit_proto_nlportid) {
10514 rdev->crit_proto_nlportid = 0;
10515 rdev_crit_proto_stop(rdev, wdev);
10520 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10523 struct wireless_dev *wdev =
10524 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10528 if (!rdev->wiphy.vendor_commands)
10529 return -EOPNOTSUPP;
10531 if (IS_ERR(wdev)) {
10532 err = PTR_ERR(wdev);
10533 if (err != -EINVAL)
10536 } else if (wdev->wiphy != &rdev->wiphy) {
10540 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10541 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10544 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10545 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10546 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10547 const struct wiphy_vendor_command *vcmd;
10551 vcmd = &rdev->wiphy.vendor_commands[i];
10553 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10556 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10557 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10560 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10564 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10565 if (wdev->netdev &&
10566 !netif_running(wdev->netdev))
10568 if (!wdev->netdev && !wdev->p2p_started)
10573 return -EOPNOTSUPP;
10578 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10579 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10580 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10583 rdev->cur_cmd_info = info;
10584 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10586 rdev->cur_cmd_info = NULL;
10590 return -EOPNOTSUPP;
10593 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10594 struct netlink_callback *cb,
10595 struct cfg80211_registered_device **rdev,
10596 struct wireless_dev **wdev)
10603 unsigned int data_len = 0;
10608 /* subtract the 1 again here */
10609 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10610 struct wireless_dev *tmp;
10616 *rdev = wiphy_to_rdev(wiphy);
10620 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
10621 if (tmp->identifier == cb->args[1] - 1) {
10628 /* keep rtnl locked in successful case */
10632 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10633 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10638 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10639 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10644 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10645 nl80211_fam.attrbuf);
10649 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10650 nl80211_fam.attrbuf);
10651 if (IS_ERR(*rdev)) {
10652 err = PTR_ERR(*rdev);
10656 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10657 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10659 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10660 const struct wiphy_vendor_command *vcmd;
10662 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10664 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10667 if (!vcmd->dumpit) {
10676 if (vcmd_idx < 0) {
10681 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10682 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10683 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10686 /* 0 is the first index - add 1 to parse only once */
10687 cb->args[0] = (*rdev)->wiphy_idx + 1;
10688 /* add 1 to know if it was NULL */
10689 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10690 cb->args[2] = vcmd_idx;
10691 cb->args[3] = (unsigned long)data;
10692 cb->args[4] = data_len;
10694 /* keep rtnl locked in successful case */
10701 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10702 struct netlink_callback *cb)
10704 struct cfg80211_registered_device *rdev;
10705 struct wireless_dev *wdev;
10706 unsigned int vcmd_idx;
10707 const struct wiphy_vendor_command *vcmd;
10711 struct nlattr *vendor_data;
10713 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10717 vcmd_idx = cb->args[2];
10718 data = (void *)cb->args[3];
10719 data_len = cb->args[4];
10720 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10722 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10723 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10726 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10730 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10731 if (wdev->netdev &&
10732 !netif_running(wdev->netdev))
10734 if (!wdev->netdev && !wdev->p2p_started)
10740 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10741 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10742 NL80211_CMD_VENDOR);
10746 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10747 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
10749 NL80211_ATTR_PAD))) {
10750 genlmsg_cancel(skb, hdr);
10754 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10755 if (!vendor_data) {
10756 genlmsg_cancel(skb, hdr);
10760 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10761 (unsigned long *)&cb->args[5]);
10762 nla_nest_end(skb, vendor_data);
10764 if (err == -ENOBUFS || err == -ENOENT) {
10765 genlmsg_cancel(skb, hdr);
10768 genlmsg_cancel(skb, hdr);
10772 genlmsg_end(skb, hdr);
10781 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10782 enum nl80211_commands cmd,
10783 enum nl80211_attrs attr,
10786 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10788 if (WARN_ON(!rdev->cur_cmd_info))
10791 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
10792 rdev->cur_cmd_info->snd_portid,
10793 rdev->cur_cmd_info->snd_seq,
10794 cmd, attr, NULL, GFP_KERNEL);
10796 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10798 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10800 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10801 void *hdr = ((void **)skb->cb)[1];
10802 struct nlattr *data = ((void **)skb->cb)[2];
10804 /* clear CB data for netlink core to own from now on */
10805 memset(skb->cb, 0, sizeof(skb->cb));
10807 if (WARN_ON(!rdev->cur_cmd_info)) {
10812 nla_nest_end(skb, data);
10813 genlmsg_end(skb, hdr);
10814 return genlmsg_reply(skb, rdev->cur_cmd_info);
10816 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10818 static int nl80211_set_qos_map(struct sk_buff *skb,
10819 struct genl_info *info)
10821 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10822 struct cfg80211_qos_map *qos_map = NULL;
10823 struct net_device *dev = info->user_ptr[1];
10824 u8 *pos, len, num_des, des_len, des;
10827 if (!rdev->ops->set_qos_map)
10828 return -EOPNOTSUPP;
10830 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10831 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10832 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10834 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10835 len > IEEE80211_QOS_MAP_LEN_MAX)
10838 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10842 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10844 des_len = num_des *
10845 sizeof(struct cfg80211_dscp_exception);
10846 memcpy(qos_map->dscp_exception, pos, des_len);
10847 qos_map->num_des = num_des;
10848 for (des = 0; des < num_des; des++) {
10849 if (qos_map->dscp_exception[des].up > 7) {
10856 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10859 wdev_lock(dev->ieee80211_ptr);
10860 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10862 ret = rdev_set_qos_map(rdev, dev, qos_map);
10863 wdev_unlock(dev->ieee80211_ptr);
10869 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10872 struct net_device *dev = info->user_ptr[1];
10873 struct wireless_dev *wdev = dev->ieee80211_ptr;
10876 u16 admitted_time = 0;
10879 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
10880 return -EOPNOTSUPP;
10882 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10883 !info->attrs[NL80211_ATTR_USER_PRIO])
10886 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10887 if (tsid >= IEEE80211_NUM_TIDS)
10890 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10891 if (up >= IEEE80211_NUM_UPS)
10894 /* WMM uses TIDs 0-7 even for TSPEC */
10895 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
10896 /* TODO: handle 802.11 TSPEC/admission control
10897 * need more attributes for that (e.g. BA session requirement);
10898 * change the WMM adminssion test above to allow both then
10903 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10905 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10907 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10908 if (!admitted_time)
10913 switch (wdev->iftype) {
10914 case NL80211_IFTYPE_STATION:
10915 case NL80211_IFTYPE_P2P_CLIENT:
10916 if (wdev->current_bss)
10925 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10932 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10934 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10935 struct net_device *dev = info->user_ptr[1];
10936 struct wireless_dev *wdev = dev->ieee80211_ptr;
10941 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10944 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10945 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10948 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10954 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10955 struct genl_info *info)
10957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10958 struct net_device *dev = info->user_ptr[1];
10959 struct wireless_dev *wdev = dev->ieee80211_ptr;
10960 struct cfg80211_chan_def chandef = {};
10965 if (!rdev->ops->tdls_channel_switch ||
10966 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10967 return -EOPNOTSUPP;
10969 switch (dev->ieee80211_ptr->iftype) {
10970 case NL80211_IFTYPE_STATION:
10971 case NL80211_IFTYPE_P2P_CLIENT:
10974 return -EOPNOTSUPP;
10977 if (!info->attrs[NL80211_ATTR_MAC] ||
10978 !info->attrs[NL80211_ATTR_OPER_CLASS])
10981 err = nl80211_parse_chandef(rdev, info, &chandef);
10986 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10987 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10988 * specification is not defined for them.
10990 if (chandef.chan->band == NL80211_BAND_2GHZ &&
10991 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10992 chandef.width != NL80211_CHAN_WIDTH_20)
10995 /* we will be active on the TDLS link */
10996 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
11000 /* don't allow switching to DFS channels */
11001 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
11004 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11005 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
11008 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
11014 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
11015 struct genl_info *info)
11017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11018 struct net_device *dev = info->user_ptr[1];
11019 struct wireless_dev *wdev = dev->ieee80211_ptr;
11022 if (!rdev->ops->tdls_channel_switch ||
11023 !rdev->ops->tdls_cancel_channel_switch ||
11024 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
11025 return -EOPNOTSUPP;
11027 switch (dev->ieee80211_ptr->iftype) {
11028 case NL80211_IFTYPE_STATION:
11029 case NL80211_IFTYPE_P2P_CLIENT:
11032 return -EOPNOTSUPP;
11035 if (!info->attrs[NL80211_ATTR_MAC])
11038 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
11041 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
11047 #define NL80211_FLAG_NEED_WIPHY 0x01
11048 #define NL80211_FLAG_NEED_NETDEV 0x02
11049 #define NL80211_FLAG_NEED_RTNL 0x04
11050 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
11051 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
11052 NL80211_FLAG_CHECK_NETDEV_UP)
11053 #define NL80211_FLAG_NEED_WDEV 0x10
11054 /* If a netdev is associated, it must be UP, P2P must be started */
11055 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
11056 NL80211_FLAG_CHECK_NETDEV_UP)
11057 #define NL80211_FLAG_CLEAR_SKB 0x20
11059 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
11060 struct genl_info *info)
11062 struct cfg80211_registered_device *rdev;
11063 struct wireless_dev *wdev;
11064 struct net_device *dev;
11065 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
11070 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
11071 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
11072 if (IS_ERR(rdev)) {
11075 return PTR_ERR(rdev);
11077 info->user_ptr[0] = rdev;
11078 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
11079 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11082 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
11084 if (IS_ERR(wdev)) {
11087 return PTR_ERR(wdev);
11090 dev = wdev->netdev;
11091 rdev = wiphy_to_rdev(wdev->wiphy);
11093 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
11100 info->user_ptr[1] = dev;
11102 info->user_ptr[1] = wdev;
11106 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
11107 !netif_running(dev)) {
11114 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
11115 if (!wdev->p2p_started) {
11122 info->user_ptr[0] = rdev;
11128 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
11129 struct genl_info *info)
11131 if (info->user_ptr[1]) {
11132 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
11133 struct wireless_dev *wdev = info->user_ptr[1];
11136 dev_put(wdev->netdev);
11138 dev_put(info->user_ptr[1]);
11142 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
11145 /* If needed, clear the netlink message payload from the SKB
11146 * as it might contain key data that shouldn't stick around on
11147 * the heap after the SKB is freed. The netlink message header
11148 * is still needed for further processing, so leave it intact.
11150 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
11151 struct nlmsghdr *nlh = nlmsg_hdr(skb);
11153 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
11157 static const struct genl_ops nl80211_ops[] = {
11159 .cmd = NL80211_CMD_GET_WIPHY,
11160 .doit = nl80211_get_wiphy,
11161 .dumpit = nl80211_dump_wiphy,
11162 .done = nl80211_dump_wiphy_done,
11163 .policy = nl80211_policy,
11164 /* can be retrieved by unprivileged users */
11165 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11166 NL80211_FLAG_NEED_RTNL,
11169 .cmd = NL80211_CMD_SET_WIPHY,
11170 .doit = nl80211_set_wiphy,
11171 .policy = nl80211_policy,
11172 .flags = GENL_UNS_ADMIN_PERM,
11173 .internal_flags = NL80211_FLAG_NEED_RTNL,
11176 .cmd = NL80211_CMD_GET_INTERFACE,
11177 .doit = nl80211_get_interface,
11178 .dumpit = nl80211_dump_interface,
11179 .policy = nl80211_policy,
11180 /* can be retrieved by unprivileged users */
11181 .internal_flags = NL80211_FLAG_NEED_WDEV |
11182 NL80211_FLAG_NEED_RTNL,
11185 .cmd = NL80211_CMD_SET_INTERFACE,
11186 .doit = nl80211_set_interface,
11187 .policy = nl80211_policy,
11188 .flags = GENL_UNS_ADMIN_PERM,
11189 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11190 NL80211_FLAG_NEED_RTNL,
11193 .cmd = NL80211_CMD_NEW_INTERFACE,
11194 .doit = nl80211_new_interface,
11195 .policy = nl80211_policy,
11196 .flags = GENL_UNS_ADMIN_PERM,
11197 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11198 NL80211_FLAG_NEED_RTNL,
11201 .cmd = NL80211_CMD_DEL_INTERFACE,
11202 .doit = nl80211_del_interface,
11203 .policy = nl80211_policy,
11204 .flags = GENL_UNS_ADMIN_PERM,
11205 .internal_flags = NL80211_FLAG_NEED_WDEV |
11206 NL80211_FLAG_NEED_RTNL,
11209 .cmd = NL80211_CMD_GET_KEY,
11210 .doit = nl80211_get_key,
11211 .policy = nl80211_policy,
11212 .flags = GENL_UNS_ADMIN_PERM,
11213 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11214 NL80211_FLAG_NEED_RTNL,
11217 .cmd = NL80211_CMD_SET_KEY,
11218 .doit = nl80211_set_key,
11219 .policy = nl80211_policy,
11220 .flags = GENL_UNS_ADMIN_PERM,
11221 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11222 NL80211_FLAG_NEED_RTNL |
11223 NL80211_FLAG_CLEAR_SKB,
11226 .cmd = NL80211_CMD_NEW_KEY,
11227 .doit = nl80211_new_key,
11228 .policy = nl80211_policy,
11229 .flags = GENL_UNS_ADMIN_PERM,
11230 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11231 NL80211_FLAG_NEED_RTNL |
11232 NL80211_FLAG_CLEAR_SKB,
11235 .cmd = NL80211_CMD_DEL_KEY,
11236 .doit = nl80211_del_key,
11237 .policy = nl80211_policy,
11238 .flags = GENL_UNS_ADMIN_PERM,
11239 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11240 NL80211_FLAG_NEED_RTNL,
11243 .cmd = NL80211_CMD_SET_BEACON,
11244 .policy = nl80211_policy,
11245 .flags = GENL_UNS_ADMIN_PERM,
11246 .doit = nl80211_set_beacon,
11247 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11248 NL80211_FLAG_NEED_RTNL,
11251 .cmd = NL80211_CMD_START_AP,
11252 .policy = nl80211_policy,
11253 .flags = GENL_UNS_ADMIN_PERM,
11254 .doit = nl80211_start_ap,
11255 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11256 NL80211_FLAG_NEED_RTNL,
11259 .cmd = NL80211_CMD_STOP_AP,
11260 .policy = nl80211_policy,
11261 .flags = GENL_UNS_ADMIN_PERM,
11262 .doit = nl80211_stop_ap,
11263 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11264 NL80211_FLAG_NEED_RTNL,
11267 .cmd = NL80211_CMD_GET_STATION,
11268 .doit = nl80211_get_station,
11269 .dumpit = nl80211_dump_station,
11270 .policy = nl80211_policy,
11271 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11272 NL80211_FLAG_NEED_RTNL,
11275 .cmd = NL80211_CMD_SET_STATION,
11276 .doit = nl80211_set_station,
11277 .policy = nl80211_policy,
11278 .flags = GENL_UNS_ADMIN_PERM,
11279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11280 NL80211_FLAG_NEED_RTNL,
11283 .cmd = NL80211_CMD_NEW_STATION,
11284 .doit = nl80211_new_station,
11285 .policy = nl80211_policy,
11286 .flags = GENL_UNS_ADMIN_PERM,
11287 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11288 NL80211_FLAG_NEED_RTNL,
11291 .cmd = NL80211_CMD_DEL_STATION,
11292 .doit = nl80211_del_station,
11293 .policy = nl80211_policy,
11294 .flags = GENL_UNS_ADMIN_PERM,
11295 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11296 NL80211_FLAG_NEED_RTNL,
11299 .cmd = NL80211_CMD_GET_MPATH,
11300 .doit = nl80211_get_mpath,
11301 .dumpit = nl80211_dump_mpath,
11302 .policy = nl80211_policy,
11303 .flags = GENL_UNS_ADMIN_PERM,
11304 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11305 NL80211_FLAG_NEED_RTNL,
11308 .cmd = NL80211_CMD_GET_MPP,
11309 .doit = nl80211_get_mpp,
11310 .dumpit = nl80211_dump_mpp,
11311 .policy = nl80211_policy,
11312 .flags = GENL_UNS_ADMIN_PERM,
11313 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11314 NL80211_FLAG_NEED_RTNL,
11317 .cmd = NL80211_CMD_SET_MPATH,
11318 .doit = nl80211_set_mpath,
11319 .policy = nl80211_policy,
11320 .flags = GENL_UNS_ADMIN_PERM,
11321 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11322 NL80211_FLAG_NEED_RTNL,
11325 .cmd = NL80211_CMD_NEW_MPATH,
11326 .doit = nl80211_new_mpath,
11327 .policy = nl80211_policy,
11328 .flags = GENL_UNS_ADMIN_PERM,
11329 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11330 NL80211_FLAG_NEED_RTNL,
11333 .cmd = NL80211_CMD_DEL_MPATH,
11334 .doit = nl80211_del_mpath,
11335 .policy = nl80211_policy,
11336 .flags = GENL_UNS_ADMIN_PERM,
11337 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11338 NL80211_FLAG_NEED_RTNL,
11341 .cmd = NL80211_CMD_SET_BSS,
11342 .doit = nl80211_set_bss,
11343 .policy = nl80211_policy,
11344 .flags = GENL_UNS_ADMIN_PERM,
11345 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11346 NL80211_FLAG_NEED_RTNL,
11349 .cmd = NL80211_CMD_GET_REG,
11350 .doit = nl80211_get_reg_do,
11351 .dumpit = nl80211_get_reg_dump,
11352 .policy = nl80211_policy,
11353 .internal_flags = NL80211_FLAG_NEED_RTNL,
11354 /* can be retrieved by unprivileged users */
11356 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
11358 .cmd = NL80211_CMD_SET_REG,
11359 .doit = nl80211_set_reg,
11360 .policy = nl80211_policy,
11361 .flags = GENL_ADMIN_PERM,
11362 .internal_flags = NL80211_FLAG_NEED_RTNL,
11366 .cmd = NL80211_CMD_REQ_SET_REG,
11367 .doit = nl80211_req_set_reg,
11368 .policy = nl80211_policy,
11369 .flags = GENL_ADMIN_PERM,
11372 .cmd = NL80211_CMD_GET_MESH_CONFIG,
11373 .doit = nl80211_get_mesh_config,
11374 .policy = nl80211_policy,
11375 /* can be retrieved by unprivileged users */
11376 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11377 NL80211_FLAG_NEED_RTNL,
11380 .cmd = NL80211_CMD_SET_MESH_CONFIG,
11381 .doit = nl80211_update_mesh_config,
11382 .policy = nl80211_policy,
11383 .flags = GENL_UNS_ADMIN_PERM,
11384 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11385 NL80211_FLAG_NEED_RTNL,
11388 .cmd = NL80211_CMD_TRIGGER_SCAN,
11389 .doit = nl80211_trigger_scan,
11390 .policy = nl80211_policy,
11391 .flags = GENL_UNS_ADMIN_PERM,
11392 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11393 NL80211_FLAG_NEED_RTNL,
11396 .cmd = NL80211_CMD_ABORT_SCAN,
11397 .doit = nl80211_abort_scan,
11398 .policy = nl80211_policy,
11399 .flags = GENL_UNS_ADMIN_PERM,
11400 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11401 NL80211_FLAG_NEED_RTNL,
11404 .cmd = NL80211_CMD_GET_SCAN,
11405 .policy = nl80211_policy,
11406 .dumpit = nl80211_dump_scan,
11409 .cmd = NL80211_CMD_START_SCHED_SCAN,
11410 .doit = nl80211_start_sched_scan,
11411 .policy = nl80211_policy,
11412 .flags = GENL_UNS_ADMIN_PERM,
11413 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11414 NL80211_FLAG_NEED_RTNL,
11417 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11418 .doit = nl80211_stop_sched_scan,
11419 .policy = nl80211_policy,
11420 .flags = GENL_UNS_ADMIN_PERM,
11421 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11422 NL80211_FLAG_NEED_RTNL,
11425 .cmd = NL80211_CMD_AUTHENTICATE,
11426 .doit = nl80211_authenticate,
11427 .policy = nl80211_policy,
11428 .flags = GENL_UNS_ADMIN_PERM,
11429 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11430 NL80211_FLAG_NEED_RTNL |
11431 NL80211_FLAG_CLEAR_SKB,
11434 .cmd = NL80211_CMD_ASSOCIATE,
11435 .doit = nl80211_associate,
11436 .policy = nl80211_policy,
11437 .flags = GENL_UNS_ADMIN_PERM,
11438 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11439 NL80211_FLAG_NEED_RTNL,
11442 .cmd = NL80211_CMD_DEAUTHENTICATE,
11443 .doit = nl80211_deauthenticate,
11444 .policy = nl80211_policy,
11445 .flags = GENL_UNS_ADMIN_PERM,
11446 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11447 NL80211_FLAG_NEED_RTNL,
11450 .cmd = NL80211_CMD_DISASSOCIATE,
11451 .doit = nl80211_disassociate,
11452 .policy = nl80211_policy,
11453 .flags = GENL_UNS_ADMIN_PERM,
11454 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11455 NL80211_FLAG_NEED_RTNL,
11458 .cmd = NL80211_CMD_JOIN_IBSS,
11459 .doit = nl80211_join_ibss,
11460 .policy = nl80211_policy,
11461 .flags = GENL_UNS_ADMIN_PERM,
11462 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11463 NL80211_FLAG_NEED_RTNL,
11466 .cmd = NL80211_CMD_LEAVE_IBSS,
11467 .doit = nl80211_leave_ibss,
11468 .policy = nl80211_policy,
11469 .flags = GENL_UNS_ADMIN_PERM,
11470 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11471 NL80211_FLAG_NEED_RTNL,
11473 #ifdef CONFIG_NL80211_TESTMODE
11475 .cmd = NL80211_CMD_TESTMODE,
11476 .doit = nl80211_testmode_do,
11477 .dumpit = nl80211_testmode_dump,
11478 .policy = nl80211_policy,
11479 .flags = GENL_UNS_ADMIN_PERM,
11480 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11481 NL80211_FLAG_NEED_RTNL,
11485 .cmd = NL80211_CMD_CONNECT,
11486 .doit = nl80211_connect,
11487 .policy = nl80211_policy,
11488 .flags = GENL_UNS_ADMIN_PERM,
11489 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11490 NL80211_FLAG_NEED_RTNL,
11493 .cmd = NL80211_CMD_DISCONNECT,
11494 .doit = nl80211_disconnect,
11495 .policy = nl80211_policy,
11496 .flags = GENL_UNS_ADMIN_PERM,
11497 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11498 NL80211_FLAG_NEED_RTNL,
11501 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11502 .doit = nl80211_wiphy_netns,
11503 .policy = nl80211_policy,
11504 .flags = GENL_UNS_ADMIN_PERM,
11505 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11506 NL80211_FLAG_NEED_RTNL,
11509 .cmd = NL80211_CMD_GET_SURVEY,
11510 .policy = nl80211_policy,
11511 .dumpit = nl80211_dump_survey,
11514 .cmd = NL80211_CMD_SET_PMKSA,
11515 .doit = nl80211_setdel_pmksa,
11516 .policy = nl80211_policy,
11517 .flags = GENL_UNS_ADMIN_PERM,
11518 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11519 NL80211_FLAG_NEED_RTNL,
11522 .cmd = NL80211_CMD_DEL_PMKSA,
11523 .doit = nl80211_setdel_pmksa,
11524 .policy = nl80211_policy,
11525 .flags = GENL_UNS_ADMIN_PERM,
11526 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11527 NL80211_FLAG_NEED_RTNL,
11530 .cmd = NL80211_CMD_FLUSH_PMKSA,
11531 .doit = nl80211_flush_pmksa,
11532 .policy = nl80211_policy,
11533 .flags = GENL_UNS_ADMIN_PERM,
11534 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11535 NL80211_FLAG_NEED_RTNL,
11538 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11539 .doit = nl80211_remain_on_channel,
11540 .policy = nl80211_policy,
11541 .flags = GENL_UNS_ADMIN_PERM,
11542 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11543 NL80211_FLAG_NEED_RTNL,
11546 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11547 .doit = nl80211_cancel_remain_on_channel,
11548 .policy = nl80211_policy,
11549 .flags = GENL_UNS_ADMIN_PERM,
11550 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11551 NL80211_FLAG_NEED_RTNL,
11554 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11555 .doit = nl80211_set_tx_bitrate_mask,
11556 .policy = nl80211_policy,
11557 .flags = GENL_UNS_ADMIN_PERM,
11558 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11559 NL80211_FLAG_NEED_RTNL,
11562 .cmd = NL80211_CMD_REGISTER_FRAME,
11563 .doit = nl80211_register_mgmt,
11564 .policy = nl80211_policy,
11565 .flags = GENL_UNS_ADMIN_PERM,
11566 .internal_flags = NL80211_FLAG_NEED_WDEV |
11567 NL80211_FLAG_NEED_RTNL,
11570 .cmd = NL80211_CMD_FRAME,
11571 .doit = nl80211_tx_mgmt,
11572 .policy = nl80211_policy,
11573 .flags = GENL_UNS_ADMIN_PERM,
11574 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11575 NL80211_FLAG_NEED_RTNL,
11578 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11579 .doit = nl80211_tx_mgmt_cancel_wait,
11580 .policy = nl80211_policy,
11581 .flags = GENL_UNS_ADMIN_PERM,
11582 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11583 NL80211_FLAG_NEED_RTNL,
11586 .cmd = NL80211_CMD_SET_POWER_SAVE,
11587 .doit = nl80211_set_power_save,
11588 .policy = nl80211_policy,
11589 .flags = GENL_UNS_ADMIN_PERM,
11590 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11591 NL80211_FLAG_NEED_RTNL,
11594 .cmd = NL80211_CMD_GET_POWER_SAVE,
11595 .doit = nl80211_get_power_save,
11596 .policy = nl80211_policy,
11597 /* can be retrieved by unprivileged users */
11598 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11599 NL80211_FLAG_NEED_RTNL,
11602 .cmd = NL80211_CMD_SET_CQM,
11603 .doit = nl80211_set_cqm,
11604 .policy = nl80211_policy,
11605 .flags = GENL_UNS_ADMIN_PERM,
11606 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11607 NL80211_FLAG_NEED_RTNL,
11610 .cmd = NL80211_CMD_SET_CHANNEL,
11611 .doit = nl80211_set_channel,
11612 .policy = nl80211_policy,
11613 .flags = GENL_UNS_ADMIN_PERM,
11614 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11615 NL80211_FLAG_NEED_RTNL,
11618 .cmd = NL80211_CMD_SET_WDS_PEER,
11619 .doit = nl80211_set_wds_peer,
11620 .policy = nl80211_policy,
11621 .flags = GENL_UNS_ADMIN_PERM,
11622 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11623 NL80211_FLAG_NEED_RTNL,
11626 .cmd = NL80211_CMD_JOIN_MESH,
11627 .doit = nl80211_join_mesh,
11628 .policy = nl80211_policy,
11629 .flags = GENL_UNS_ADMIN_PERM,
11630 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11631 NL80211_FLAG_NEED_RTNL,
11634 .cmd = NL80211_CMD_LEAVE_MESH,
11635 .doit = nl80211_leave_mesh,
11636 .policy = nl80211_policy,
11637 .flags = GENL_UNS_ADMIN_PERM,
11638 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11639 NL80211_FLAG_NEED_RTNL,
11642 .cmd = NL80211_CMD_JOIN_OCB,
11643 .doit = nl80211_join_ocb,
11644 .policy = nl80211_policy,
11645 .flags = GENL_UNS_ADMIN_PERM,
11646 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11647 NL80211_FLAG_NEED_RTNL,
11650 .cmd = NL80211_CMD_LEAVE_OCB,
11651 .doit = nl80211_leave_ocb,
11652 .policy = nl80211_policy,
11653 .flags = GENL_UNS_ADMIN_PERM,
11654 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11655 NL80211_FLAG_NEED_RTNL,
11659 .cmd = NL80211_CMD_GET_WOWLAN,
11660 .doit = nl80211_get_wowlan,
11661 .policy = nl80211_policy,
11662 /* can be retrieved by unprivileged users */
11663 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11664 NL80211_FLAG_NEED_RTNL,
11667 .cmd = NL80211_CMD_SET_WOWLAN,
11668 .doit = nl80211_set_wowlan,
11669 .policy = nl80211_policy,
11670 .flags = GENL_UNS_ADMIN_PERM,
11671 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11672 NL80211_FLAG_NEED_RTNL,
11676 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11677 .doit = nl80211_set_rekey_data,
11678 .policy = nl80211_policy,
11679 .flags = GENL_UNS_ADMIN_PERM,
11680 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11681 NL80211_FLAG_NEED_RTNL |
11682 NL80211_FLAG_CLEAR_SKB,
11685 .cmd = NL80211_CMD_TDLS_MGMT,
11686 .doit = nl80211_tdls_mgmt,
11687 .policy = nl80211_policy,
11688 .flags = GENL_UNS_ADMIN_PERM,
11689 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11690 NL80211_FLAG_NEED_RTNL,
11693 .cmd = NL80211_CMD_TDLS_OPER,
11694 .doit = nl80211_tdls_oper,
11695 .policy = nl80211_policy,
11696 .flags = GENL_UNS_ADMIN_PERM,
11697 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11698 NL80211_FLAG_NEED_RTNL,
11701 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11702 .doit = nl80211_register_unexpected_frame,
11703 .policy = nl80211_policy,
11704 .flags = GENL_UNS_ADMIN_PERM,
11705 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11706 NL80211_FLAG_NEED_RTNL,
11709 .cmd = NL80211_CMD_PROBE_CLIENT,
11710 .doit = nl80211_probe_client,
11711 .policy = nl80211_policy,
11712 .flags = GENL_UNS_ADMIN_PERM,
11713 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11714 NL80211_FLAG_NEED_RTNL,
11717 .cmd = NL80211_CMD_REGISTER_BEACONS,
11718 .doit = nl80211_register_beacons,
11719 .policy = nl80211_policy,
11720 .flags = GENL_UNS_ADMIN_PERM,
11721 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11722 NL80211_FLAG_NEED_RTNL,
11725 .cmd = NL80211_CMD_SET_NOACK_MAP,
11726 .doit = nl80211_set_noack_map,
11727 .policy = nl80211_policy,
11728 .flags = GENL_UNS_ADMIN_PERM,
11729 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11730 NL80211_FLAG_NEED_RTNL,
11733 .cmd = NL80211_CMD_START_P2P_DEVICE,
11734 .doit = nl80211_start_p2p_device,
11735 .policy = nl80211_policy,
11736 .flags = GENL_UNS_ADMIN_PERM,
11737 .internal_flags = NL80211_FLAG_NEED_WDEV |
11738 NL80211_FLAG_NEED_RTNL,
11741 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11742 .doit = nl80211_stop_p2p_device,
11743 .policy = nl80211_policy,
11744 .flags = GENL_UNS_ADMIN_PERM,
11745 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11746 NL80211_FLAG_NEED_RTNL,
11749 .cmd = NL80211_CMD_SET_MCAST_RATE,
11750 .doit = nl80211_set_mcast_rate,
11751 .policy = nl80211_policy,
11752 .flags = GENL_UNS_ADMIN_PERM,
11753 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11754 NL80211_FLAG_NEED_RTNL,
11757 .cmd = NL80211_CMD_SET_MAC_ACL,
11758 .doit = nl80211_set_mac_acl,
11759 .policy = nl80211_policy,
11760 .flags = GENL_UNS_ADMIN_PERM,
11761 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11762 NL80211_FLAG_NEED_RTNL,
11765 .cmd = NL80211_CMD_RADAR_DETECT,
11766 .doit = nl80211_start_radar_detection,
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_GET_PROTOCOL_FEATURES,
11774 .doit = nl80211_get_protocol_features,
11775 .policy = nl80211_policy,
11778 .cmd = NL80211_CMD_UPDATE_FT_IES,
11779 .doit = nl80211_update_ft_ies,
11780 .policy = nl80211_policy,
11781 .flags = GENL_UNS_ADMIN_PERM,
11782 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11783 NL80211_FLAG_NEED_RTNL,
11786 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11787 .doit = nl80211_crit_protocol_start,
11788 .policy = nl80211_policy,
11789 .flags = GENL_UNS_ADMIN_PERM,
11790 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11791 NL80211_FLAG_NEED_RTNL,
11794 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11795 .doit = nl80211_crit_protocol_stop,
11796 .policy = nl80211_policy,
11797 .flags = GENL_UNS_ADMIN_PERM,
11798 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11799 NL80211_FLAG_NEED_RTNL,
11802 .cmd = NL80211_CMD_GET_COALESCE,
11803 .doit = nl80211_get_coalesce,
11804 .policy = nl80211_policy,
11805 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11806 NL80211_FLAG_NEED_RTNL,
11809 .cmd = NL80211_CMD_SET_COALESCE,
11810 .doit = nl80211_set_coalesce,
11811 .policy = nl80211_policy,
11812 .flags = GENL_UNS_ADMIN_PERM,
11813 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11814 NL80211_FLAG_NEED_RTNL,
11817 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11818 .doit = nl80211_channel_switch,
11819 .policy = nl80211_policy,
11820 .flags = GENL_UNS_ADMIN_PERM,
11821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11822 NL80211_FLAG_NEED_RTNL,
11825 .cmd = NL80211_CMD_VENDOR,
11826 .doit = nl80211_vendor_cmd,
11827 .dumpit = nl80211_vendor_cmd_dump,
11828 .policy = nl80211_policy,
11829 .flags = GENL_UNS_ADMIN_PERM,
11830 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11831 NL80211_FLAG_NEED_RTNL,
11834 .cmd = NL80211_CMD_SET_QOS_MAP,
11835 .doit = nl80211_set_qos_map,
11836 .policy = nl80211_policy,
11837 .flags = GENL_UNS_ADMIN_PERM,
11838 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11839 NL80211_FLAG_NEED_RTNL,
11842 .cmd = NL80211_CMD_ADD_TX_TS,
11843 .doit = nl80211_add_tx_ts,
11844 .policy = nl80211_policy,
11845 .flags = GENL_UNS_ADMIN_PERM,
11846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11847 NL80211_FLAG_NEED_RTNL,
11850 .cmd = NL80211_CMD_DEL_TX_TS,
11851 .doit = nl80211_del_tx_ts,
11852 .policy = nl80211_policy,
11853 .flags = GENL_UNS_ADMIN_PERM,
11854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11855 NL80211_FLAG_NEED_RTNL,
11858 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11859 .doit = nl80211_tdls_channel_switch,
11860 .policy = nl80211_policy,
11861 .flags = GENL_UNS_ADMIN_PERM,
11862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11863 NL80211_FLAG_NEED_RTNL,
11866 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11867 .doit = nl80211_tdls_cancel_channel_switch,
11868 .policy = nl80211_policy,
11869 .flags = GENL_UNS_ADMIN_PERM,
11870 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11871 NL80211_FLAG_NEED_RTNL,
11875 /* notification functions */
11877 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11878 enum nl80211_commands cmd)
11880 struct sk_buff *msg;
11881 struct nl80211_dump_wiphy_state state = {};
11883 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11884 cmd != NL80211_CMD_DEL_WIPHY);
11886 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11890 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
11895 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11896 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11899 void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
11900 struct wireless_dev *wdev,
11901 enum nl80211_commands cmd)
11903 struct sk_buff *msg;
11905 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
11906 cmd != NL80211_CMD_DEL_INTERFACE);
11908 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11912 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
11913 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
11918 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11919 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11922 static int nl80211_add_scan_req(struct sk_buff *msg,
11923 struct cfg80211_registered_device *rdev)
11925 struct cfg80211_scan_request *req = rdev->scan_req;
11926 struct nlattr *nest;
11932 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11934 goto nla_put_failure;
11935 for (i = 0; i < req->n_ssids; i++) {
11936 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11937 goto nla_put_failure;
11939 nla_nest_end(msg, nest);
11941 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11943 goto nla_put_failure;
11944 for (i = 0; i < req->n_channels; i++) {
11945 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11946 goto nla_put_failure;
11948 nla_nest_end(msg, nest);
11951 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11952 goto nla_put_failure;
11955 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11956 goto nla_put_failure;
11958 if (req->info.scan_start_tsf &&
11959 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
11960 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
11961 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
11962 req->info.tsf_bssid)))
11963 goto nla_put_failure;
11970 static int nl80211_send_scan_msg(struct sk_buff *msg,
11971 struct cfg80211_registered_device *rdev,
11972 struct wireless_dev *wdev,
11973 u32 portid, u32 seq, int flags,
11978 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11982 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11983 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11984 wdev->netdev->ifindex)) ||
11985 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11987 goto nla_put_failure;
11989 /* ignore errors and send incomplete event anyway */
11990 nl80211_add_scan_req(msg, rdev);
11992 genlmsg_end(msg, hdr);
11996 genlmsg_cancel(msg, hdr);
12001 nl80211_send_sched_scan_msg(struct sk_buff *msg,
12002 struct cfg80211_registered_device *rdev,
12003 struct net_device *netdev,
12004 u32 portid, u32 seq, int flags, u32 cmd)
12008 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
12012 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12013 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12014 goto nla_put_failure;
12016 genlmsg_end(msg, hdr);
12020 genlmsg_cancel(msg, hdr);
12024 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
12025 struct wireless_dev *wdev)
12027 struct sk_buff *msg;
12029 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12033 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
12034 NL80211_CMD_TRIGGER_SCAN) < 0) {
12039 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12040 NL80211_MCGRP_SCAN, GFP_KERNEL);
12043 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
12044 struct wireless_dev *wdev, bool aborted)
12046 struct sk_buff *msg;
12048 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12052 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
12053 aborted ? NL80211_CMD_SCAN_ABORTED :
12054 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
12062 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
12063 struct sk_buff *msg)
12068 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12069 NL80211_MCGRP_SCAN, GFP_KERNEL);
12072 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
12073 struct net_device *netdev)
12075 struct sk_buff *msg;
12077 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12081 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
12082 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
12087 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12088 NL80211_MCGRP_SCAN, GFP_KERNEL);
12091 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
12092 struct net_device *netdev, u32 cmd)
12094 struct sk_buff *msg;
12096 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12100 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
12105 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12106 NL80211_MCGRP_SCAN, GFP_KERNEL);
12109 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
12110 struct regulatory_request *request)
12112 /* Userspace can always count this one always being set */
12113 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
12114 goto nla_put_failure;
12116 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
12117 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12118 NL80211_REGDOM_TYPE_WORLD))
12119 goto nla_put_failure;
12120 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
12121 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12122 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
12123 goto nla_put_failure;
12124 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
12125 request->intersect) {
12126 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12127 NL80211_REGDOM_TYPE_INTERSECTION))
12128 goto nla_put_failure;
12130 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
12131 NL80211_REGDOM_TYPE_COUNTRY) ||
12132 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
12134 goto nla_put_failure;
12137 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
12138 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
12141 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
12142 goto nla_put_failure;
12145 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
12146 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
12147 goto nla_put_failure;
12157 * This can happen on global regulatory changes or device specific settings
12158 * based on custom regulatory domains.
12160 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
12161 struct regulatory_request *request)
12163 struct sk_buff *msg;
12166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12170 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
12176 if (nl80211_reg_change_event_fill(msg, request) == false)
12177 goto nla_put_failure;
12179 genlmsg_end(msg, hdr);
12182 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12183 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12189 genlmsg_cancel(msg, hdr);
12193 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
12194 struct net_device *netdev,
12195 const u8 *buf, size_t len,
12196 enum nl80211_commands cmd, 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(msg, NL80211_ATTR_FRAME, len, buf))
12215 goto nla_put_failure;
12217 if (uapsd_queues >= 0) {
12218 struct nlattr *nla_wmm =
12219 nla_nest_start(msg, NL80211_ATTR_STA_WME);
12221 goto nla_put_failure;
12223 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
12225 goto nla_put_failure;
12227 nla_nest_end(msg, nla_wmm);
12230 genlmsg_end(msg, hdr);
12232 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12233 NL80211_MCGRP_MLME, gfp);
12237 genlmsg_cancel(msg, hdr);
12241 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
12242 struct net_device *netdev, const u8 *buf,
12243 size_t len, gfp_t gfp)
12245 nl80211_send_mlme_event(rdev, netdev, buf, len,
12246 NL80211_CMD_AUTHENTICATE, gfp, -1);
12249 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
12250 struct net_device *netdev, const u8 *buf,
12251 size_t len, gfp_t gfp, int uapsd_queues)
12253 nl80211_send_mlme_event(rdev, netdev, buf, len,
12254 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
12257 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
12258 struct net_device *netdev, const u8 *buf,
12259 size_t len, gfp_t gfp)
12261 nl80211_send_mlme_event(rdev, netdev, buf, len,
12262 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
12265 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
12266 struct net_device *netdev, const u8 *buf,
12267 size_t len, gfp_t gfp)
12269 nl80211_send_mlme_event(rdev, netdev, buf, len,
12270 NL80211_CMD_DISASSOCIATE, gfp, -1);
12273 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
12276 struct wireless_dev *wdev = dev->ieee80211_ptr;
12277 struct wiphy *wiphy = wdev->wiphy;
12278 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12279 const struct ieee80211_mgmt *mgmt = (void *)buf;
12282 if (WARN_ON(len < 2))
12285 if (ieee80211_is_deauth(mgmt->frame_control))
12286 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
12288 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
12290 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
12291 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
12293 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
12295 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
12296 struct net_device *netdev, int cmd,
12297 const u8 *addr, gfp_t gfp)
12299 struct sk_buff *msg;
12302 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12306 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12312 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12313 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12314 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
12315 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12316 goto nla_put_failure;
12318 genlmsg_end(msg, hdr);
12320 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12321 NL80211_MCGRP_MLME, gfp);
12325 genlmsg_cancel(msg, hdr);
12329 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
12330 struct net_device *netdev, const u8 *addr,
12333 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
12337 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
12338 struct net_device *netdev, const u8 *addr,
12341 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
12345 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
12346 struct net_device *netdev, const u8 *bssid,
12347 const u8 *req_ie, size_t req_ie_len,
12348 const u8 *resp_ie, size_t resp_ie_len,
12349 int status, gfp_t gfp)
12351 struct sk_buff *msg;
12354 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12358 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
12364 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12365 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12366 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
12367 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
12368 status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
12370 (status < 0 && nla_put_flag(msg, NL80211_ATTR_TIMED_OUT)) ||
12372 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12374 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12375 goto nla_put_failure;
12377 genlmsg_end(msg, hdr);
12379 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12380 NL80211_MCGRP_MLME, gfp);
12384 genlmsg_cancel(msg, hdr);
12388 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
12389 struct net_device *netdev, const u8 *bssid,
12390 const u8 *req_ie, size_t req_ie_len,
12391 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
12393 struct sk_buff *msg;
12396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12400 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
12406 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12407 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12408 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
12410 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
12412 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
12413 goto nla_put_failure;
12415 genlmsg_end(msg, hdr);
12417 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12418 NL80211_MCGRP_MLME, gfp);
12422 genlmsg_cancel(msg, hdr);
12426 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
12427 struct net_device *netdev, u16 reason,
12428 const u8 *ie, size_t ie_len, bool from_ap)
12430 struct sk_buff *msg;
12433 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12437 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12443 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12444 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12445 (from_ap && reason &&
12446 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12448 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12449 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12450 goto nla_put_failure;
12452 genlmsg_end(msg, hdr);
12454 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12455 NL80211_MCGRP_MLME, GFP_KERNEL);
12459 genlmsg_cancel(msg, hdr);
12463 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12464 struct net_device *netdev, const u8 *bssid,
12467 struct sk_buff *msg;
12470 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12474 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12480 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12481 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12483 goto nla_put_failure;
12485 genlmsg_end(msg, hdr);
12487 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12488 NL80211_MCGRP_MLME, gfp);
12492 genlmsg_cancel(msg, hdr);
12496 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12497 const u8* ie, u8 ie_len, gfp_t gfp)
12499 struct wireless_dev *wdev = dev->ieee80211_ptr;
12500 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12501 struct sk_buff *msg;
12504 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12507 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12513 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12519 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12520 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12521 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12523 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12524 goto nla_put_failure;
12526 genlmsg_end(msg, hdr);
12528 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12529 NL80211_MCGRP_MLME, gfp);
12533 genlmsg_cancel(msg, hdr);
12536 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
12538 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12539 struct net_device *netdev, const u8 *addr,
12540 enum nl80211_key_type key_type, int key_id,
12541 const u8 *tsc, gfp_t gfp)
12543 struct sk_buff *msg;
12546 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12550 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12556 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12557 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12558 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12559 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12561 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12562 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12563 goto nla_put_failure;
12565 genlmsg_end(msg, hdr);
12567 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12568 NL80211_MCGRP_MLME, gfp);
12572 genlmsg_cancel(msg, hdr);
12576 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12577 struct ieee80211_channel *channel_before,
12578 struct ieee80211_channel *channel_after)
12580 struct sk_buff *msg;
12582 struct nlattr *nl_freq;
12584 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
12588 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12595 * Since we are applying the beacon hint to a wiphy we know its
12596 * wiphy_idx is valid
12598 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12599 goto nla_put_failure;
12602 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12604 goto nla_put_failure;
12605 if (nl80211_msg_put_channel(msg, channel_before, false))
12606 goto nla_put_failure;
12607 nla_nest_end(msg, nl_freq);
12610 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12612 goto nla_put_failure;
12613 if (nl80211_msg_put_channel(msg, channel_after, false))
12614 goto nla_put_failure;
12615 nla_nest_end(msg, nl_freq);
12617 genlmsg_end(msg, hdr);
12620 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12621 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12627 genlmsg_cancel(msg, hdr);
12631 static void nl80211_send_remain_on_chan_event(
12632 int cmd, struct cfg80211_registered_device *rdev,
12633 struct wireless_dev *wdev, u64 cookie,
12634 struct ieee80211_channel *chan,
12635 unsigned int duration, gfp_t gfp)
12637 struct sk_buff *msg;
12640 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12644 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12650 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12651 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12652 wdev->netdev->ifindex)) ||
12653 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12654 NL80211_ATTR_PAD) ||
12655 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
12656 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12657 NL80211_CHAN_NO_HT) ||
12658 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12660 goto nla_put_failure;
12662 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12663 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12664 goto nla_put_failure;
12666 genlmsg_end(msg, hdr);
12668 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12669 NL80211_MCGRP_MLME, gfp);
12673 genlmsg_cancel(msg, hdr);
12677 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12678 struct ieee80211_channel *chan,
12679 unsigned int duration, gfp_t gfp)
12681 struct wiphy *wiphy = wdev->wiphy;
12682 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12684 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
12685 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
12686 rdev, wdev, cookie, chan,
12689 EXPORT_SYMBOL(cfg80211_ready_on_channel);
12691 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12692 struct ieee80211_channel *chan,
12695 struct wiphy *wiphy = wdev->wiphy;
12696 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12698 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
12699 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12700 rdev, wdev, cookie, chan, 0, gfp);
12702 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
12704 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12705 struct station_info *sinfo, gfp_t gfp)
12707 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12708 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12709 struct sk_buff *msg;
12711 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12713 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12717 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
12718 rdev, dev, mac_addr, sinfo) < 0) {
12723 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12724 NL80211_MCGRP_MLME, gfp);
12726 EXPORT_SYMBOL(cfg80211_new_sta);
12728 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12729 struct station_info *sinfo, gfp_t gfp)
12731 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12732 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12733 struct sk_buff *msg;
12734 struct station_info empty_sinfo = {};
12737 sinfo = &empty_sinfo;
12739 trace_cfg80211_del_sta(dev, mac_addr);
12741 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12745 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
12746 rdev, dev, mac_addr, sinfo) < 0) {
12751 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12752 NL80211_MCGRP_MLME, gfp);
12754 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
12756 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12757 enum nl80211_connect_failed_reason reason,
12760 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12761 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12762 struct sk_buff *msg;
12765 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12769 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12775 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12776 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12777 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12778 goto nla_put_failure;
12780 genlmsg_end(msg, hdr);
12782 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12783 NL80211_MCGRP_MLME, gfp);
12787 genlmsg_cancel(msg, hdr);
12790 EXPORT_SYMBOL(cfg80211_conn_failed);
12792 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12793 const u8 *addr, gfp_t gfp)
12795 struct wireless_dev *wdev = dev->ieee80211_ptr;
12796 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12797 struct sk_buff *msg;
12799 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
12804 msg = nlmsg_new(100, gfp);
12808 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12814 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12815 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12816 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12817 goto nla_put_failure;
12819 genlmsg_end(msg, hdr);
12820 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12824 genlmsg_cancel(msg, hdr);
12829 bool cfg80211_rx_spurious_frame(struct net_device *dev,
12830 const u8 *addr, gfp_t gfp)
12832 struct wireless_dev *wdev = dev->ieee80211_ptr;
12835 trace_cfg80211_rx_spurious_frame(dev, addr);
12837 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12838 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12839 trace_cfg80211_return_bool(false);
12842 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12844 trace_cfg80211_return_bool(ret);
12847 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
12849 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12850 const u8 *addr, gfp_t gfp)
12852 struct wireless_dev *wdev = dev->ieee80211_ptr;
12855 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12857 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12858 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12859 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12860 trace_cfg80211_return_bool(false);
12863 ret = __nl80211_unexpected_frame(dev,
12864 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12866 trace_cfg80211_return_bool(ret);
12869 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
12871 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
12872 struct wireless_dev *wdev, u32 nlportid,
12873 int freq, int sig_dbm,
12874 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
12876 struct net_device *netdev = wdev->netdev;
12877 struct sk_buff *msg;
12880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12884 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12890 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12891 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12892 netdev->ifindex)) ||
12893 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12894 NL80211_ATTR_PAD) ||
12895 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12897 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12898 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12900 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
12901 goto nla_put_failure;
12903 genlmsg_end(msg, hdr);
12905 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12908 genlmsg_cancel(msg, hdr);
12913 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12914 const u8 *buf, size_t len, bool ack, gfp_t gfp)
12916 struct wiphy *wiphy = wdev->wiphy;
12917 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12918 struct net_device *netdev = wdev->netdev;
12919 struct sk_buff *msg;
12922 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12928 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
12934 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12935 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12936 netdev->ifindex)) ||
12937 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
12938 NL80211_ATTR_PAD) ||
12939 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12940 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
12941 NL80211_ATTR_PAD) ||
12942 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12943 goto nla_put_failure;
12945 genlmsg_end(msg, hdr);
12947 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12948 NL80211_MCGRP_MLME, gfp);
12952 genlmsg_cancel(msg, hdr);
12955 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
12957 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12958 const char *mac, gfp_t gfp)
12960 struct wireless_dev *wdev = dev->ieee80211_ptr;
12961 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12962 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12968 cb = (void **)msg->cb;
12970 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12976 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12977 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12978 goto nla_put_failure;
12980 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
12981 goto nla_put_failure;
12983 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12985 goto nla_put_failure;
12995 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12997 void **cb = (void **)msg->cb;
12998 struct cfg80211_registered_device *rdev = cb[2];
13000 nla_nest_end(msg, cb[1]);
13001 genlmsg_end(msg, cb[0]);
13003 memset(msg->cb, 0, sizeof(msg->cb));
13005 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13006 NL80211_MCGRP_MLME, gfp);
13009 void cfg80211_cqm_rssi_notify(struct net_device *dev,
13010 enum nl80211_cqm_rssi_threshold_event rssi_event,
13013 struct sk_buff *msg;
13015 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
13017 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
13018 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
13021 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13025 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
13027 goto nla_put_failure;
13029 cfg80211_send_cqm(msg, gfp);
13036 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
13038 void cfg80211_cqm_txe_notify(struct net_device *dev,
13039 const u8 *peer, u32 num_packets,
13040 u32 rate, u32 intvl, gfp_t gfp)
13042 struct sk_buff *msg;
13044 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13048 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
13049 goto nla_put_failure;
13051 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
13052 goto nla_put_failure;
13054 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
13055 goto nla_put_failure;
13057 cfg80211_send_cqm(msg, gfp);
13063 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
13065 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
13066 const u8 *peer, u32 num_packets, gfp_t gfp)
13068 struct sk_buff *msg;
13070 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
13072 msg = cfg80211_prepare_cqm(dev, peer, gfp);
13076 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
13077 goto nla_put_failure;
13079 cfg80211_send_cqm(msg, gfp);
13085 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
13087 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
13089 struct sk_buff *msg;
13091 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
13095 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
13096 goto nla_put_failure;
13098 cfg80211_send_cqm(msg, gfp);
13104 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
13106 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
13107 struct net_device *netdev, const u8 *bssid,
13108 const u8 *replay_ctr, gfp_t gfp)
13110 struct sk_buff *msg;
13111 struct nlattr *rekey_attr;
13114 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13118 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
13124 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13125 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13126 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13127 goto nla_put_failure;
13129 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
13131 goto nla_put_failure;
13133 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
13134 NL80211_REPLAY_CTR_LEN, replay_ctr))
13135 goto nla_put_failure;
13137 nla_nest_end(msg, rekey_attr);
13139 genlmsg_end(msg, hdr);
13141 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13142 NL80211_MCGRP_MLME, gfp);
13146 genlmsg_cancel(msg, hdr);
13150 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
13151 const u8 *replay_ctr, gfp_t gfp)
13153 struct wireless_dev *wdev = dev->ieee80211_ptr;
13154 struct wiphy *wiphy = wdev->wiphy;
13155 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13157 trace_cfg80211_gtk_rekey_notify(dev, bssid);
13158 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
13160 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
13163 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
13164 struct net_device *netdev, int index,
13165 const u8 *bssid, bool preauth, gfp_t gfp)
13167 struct sk_buff *msg;
13168 struct nlattr *attr;
13171 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13175 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
13181 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13182 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13183 goto nla_put_failure;
13185 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
13187 goto nla_put_failure;
13189 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
13190 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
13192 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
13193 goto nla_put_failure;
13195 nla_nest_end(msg, attr);
13197 genlmsg_end(msg, hdr);
13199 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13200 NL80211_MCGRP_MLME, gfp);
13204 genlmsg_cancel(msg, hdr);
13208 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
13209 const u8 *bssid, bool preauth, gfp_t gfp)
13211 struct wireless_dev *wdev = dev->ieee80211_ptr;
13212 struct wiphy *wiphy = wdev->wiphy;
13213 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13215 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
13216 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
13218 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
13220 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
13221 struct net_device *netdev,
13222 struct cfg80211_chan_def *chandef,
13224 enum nl80211_commands notif,
13227 struct sk_buff *msg;
13230 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13234 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
13240 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
13241 goto nla_put_failure;
13243 if (nl80211_send_chandef(msg, chandef))
13244 goto nla_put_failure;
13246 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
13247 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
13248 goto nla_put_failure;
13250 genlmsg_end(msg, hdr);
13252 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13253 NL80211_MCGRP_MLME, gfp);
13257 genlmsg_cancel(msg, hdr);
13261 void cfg80211_ch_switch_notify(struct net_device *dev,
13262 struct cfg80211_chan_def *chandef)
13264 struct wireless_dev *wdev = dev->ieee80211_ptr;
13265 struct wiphy *wiphy = wdev->wiphy;
13266 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13268 ASSERT_WDEV_LOCK(wdev);
13270 trace_cfg80211_ch_switch_notify(dev, chandef);
13272 wdev->chandef = *chandef;
13273 wdev->preset_chandef = *chandef;
13274 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13275 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
13277 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
13279 void cfg80211_ch_switch_started_notify(struct net_device *dev,
13280 struct cfg80211_chan_def *chandef,
13283 struct wireless_dev *wdev = dev->ieee80211_ptr;
13284 struct wiphy *wiphy = wdev->wiphy;
13285 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13287 trace_cfg80211_ch_switch_started_notify(dev, chandef);
13289 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
13290 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
13292 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
13295 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
13296 const struct cfg80211_chan_def *chandef,
13297 enum nl80211_radar_event event,
13298 struct net_device *netdev, gfp_t gfp)
13300 struct sk_buff *msg;
13303 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13307 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
13313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
13314 goto nla_put_failure;
13316 /* NOP and radar events don't need a netdev parameter */
13318 struct wireless_dev *wdev = netdev->ieee80211_ptr;
13320 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13321 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13323 goto nla_put_failure;
13326 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
13327 goto nla_put_failure;
13329 if (nl80211_send_chandef(msg, chandef))
13330 goto nla_put_failure;
13332 genlmsg_end(msg, hdr);
13334 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13335 NL80211_MCGRP_MLME, gfp);
13339 genlmsg_cancel(msg, hdr);
13343 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
13344 u64 cookie, bool acked, gfp_t gfp)
13346 struct wireless_dev *wdev = dev->ieee80211_ptr;
13347 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13348 struct sk_buff *msg;
13351 trace_cfg80211_probe_status(dev, addr, cookie, acked);
13353 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13358 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
13364 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13365 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13366 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
13367 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
13368 NL80211_ATTR_PAD) ||
13369 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
13370 goto nla_put_failure;
13372 genlmsg_end(msg, hdr);
13374 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13375 NL80211_MCGRP_MLME, gfp);
13379 genlmsg_cancel(msg, hdr);
13382 EXPORT_SYMBOL(cfg80211_probe_status);
13384 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
13385 const u8 *frame, size_t len,
13386 int freq, int sig_dbm)
13388 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13389 struct sk_buff *msg;
13391 struct cfg80211_beacon_registration *reg;
13393 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
13395 spin_lock_bh(&rdev->beacon_registrations_lock);
13396 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
13397 msg = nlmsg_new(len + 100, GFP_ATOMIC);
13399 spin_unlock_bh(&rdev->beacon_registrations_lock);
13403 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
13405 goto nla_put_failure;
13407 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13409 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
13411 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
13412 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
13413 goto nla_put_failure;
13415 genlmsg_end(msg, hdr);
13417 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
13419 spin_unlock_bh(&rdev->beacon_registrations_lock);
13423 spin_unlock_bh(&rdev->beacon_registrations_lock);
13425 genlmsg_cancel(msg, hdr);
13428 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
13431 static int cfg80211_net_detect_results(struct sk_buff *msg,
13432 struct cfg80211_wowlan_wakeup *wakeup)
13434 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
13435 struct nlattr *nl_results, *nl_match, *nl_freqs;
13438 nl_results = nla_nest_start(
13439 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13443 for (i = 0; i < nd->n_matches; i++) {
13444 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13446 nl_match = nla_nest_start(msg, i);
13450 /* The SSID attribute is optional in nl80211, but for
13451 * simplicity reasons it's always present in the
13452 * cfg80211 structure. If a driver can't pass the
13453 * SSID, that needs to be changed. A zero length SSID
13454 * is still a valid SSID (wildcard), so it cannot be
13455 * used for this purpose.
13457 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13458 match->ssid.ssid)) {
13459 nla_nest_cancel(msg, nl_match);
13463 if (match->n_channels) {
13464 nl_freqs = nla_nest_start(
13465 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13467 nla_nest_cancel(msg, nl_match);
13471 for (j = 0; j < match->n_channels; j++) {
13472 if (nla_put_u32(msg, j, match->channels[j])) {
13473 nla_nest_cancel(msg, nl_freqs);
13474 nla_nest_cancel(msg, nl_match);
13479 nla_nest_end(msg, nl_freqs);
13482 nla_nest_end(msg, nl_match);
13486 nla_nest_end(msg, nl_results);
13490 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13491 struct cfg80211_wowlan_wakeup *wakeup,
13494 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13495 struct sk_buff *msg;
13499 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13502 size += wakeup->packet_present_len;
13504 msg = nlmsg_new(size, gfp);
13508 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13512 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13513 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13517 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13518 wdev->netdev->ifindex))
13522 struct nlattr *reasons;
13524 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
13528 if (wakeup->disconnect &&
13529 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13531 if (wakeup->magic_pkt &&
13532 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13534 if (wakeup->gtk_rekey_failure &&
13535 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13537 if (wakeup->eap_identity_req &&
13538 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13540 if (wakeup->four_way_handshake &&
13541 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13543 if (wakeup->rfkill_release &&
13544 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13547 if (wakeup->pattern_idx >= 0 &&
13548 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13549 wakeup->pattern_idx))
13552 if (wakeup->tcp_match &&
13553 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13556 if (wakeup->tcp_connlost &&
13557 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13560 if (wakeup->tcp_nomoretokens &&
13562 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13565 if (wakeup->packet) {
13566 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13567 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13569 if (!wakeup->packet_80211) {
13571 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13573 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13576 if (wakeup->packet_len &&
13577 nla_put_u32(msg, len_attr, wakeup->packet_len))
13580 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13585 if (wakeup->net_detect &&
13586 cfg80211_net_detect_results(msg, wakeup))
13589 nla_nest_end(msg, reasons);
13592 genlmsg_end(msg, hdr);
13594 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13595 NL80211_MCGRP_MLME, gfp);
13601 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13604 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13605 enum nl80211_tdls_operation oper,
13606 u16 reason_code, gfp_t gfp)
13608 struct wireless_dev *wdev = dev->ieee80211_ptr;
13609 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13610 struct sk_buff *msg;
13613 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13616 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13620 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13626 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13627 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13628 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13629 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13630 (reason_code > 0 &&
13631 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13632 goto nla_put_failure;
13634 genlmsg_end(msg, hdr);
13636 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13637 NL80211_MCGRP_MLME, gfp);
13641 genlmsg_cancel(msg, hdr);
13644 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13646 static int nl80211_netlink_notify(struct notifier_block * nb,
13647 unsigned long state,
13650 struct netlink_notify *notify = _notify;
13651 struct cfg80211_registered_device *rdev;
13652 struct wireless_dev *wdev;
13653 struct cfg80211_beacon_registration *reg, *tmp;
13655 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
13656 return NOTIFY_DONE;
13660 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
13661 bool schedule_destroy_work = false;
13662 bool schedule_scan_stop = false;
13663 struct cfg80211_sched_scan_request *sched_scan_req =
13664 rcu_dereference(rdev->sched_scan_req);
13666 if (sched_scan_req && notify->portid &&
13667 sched_scan_req->owner_nlportid == notify->portid)
13668 schedule_scan_stop = true;
13670 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
13671 cfg80211_mlme_unregister_socket(wdev, notify->portid);
13673 if (wdev->owner_nlportid == notify->portid)
13674 schedule_destroy_work = true;
13677 spin_lock_bh(&rdev->beacon_registrations_lock);
13678 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13680 if (reg->nlportid == notify->portid) {
13681 list_del(®->list);
13686 spin_unlock_bh(&rdev->beacon_registrations_lock);
13688 if (schedule_destroy_work) {
13689 struct cfg80211_iface_destroy *destroy;
13691 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13693 destroy->nlportid = notify->portid;
13694 spin_lock(&rdev->destroy_list_lock);
13695 list_add(&destroy->list, &rdev->destroy_list);
13696 spin_unlock(&rdev->destroy_list_lock);
13697 schedule_work(&rdev->destroy_work);
13699 } else if (schedule_scan_stop) {
13700 sched_scan_req->owner_nlportid = 0;
13702 if (rdev->ops->sched_scan_stop &&
13703 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13704 schedule_work(&rdev->sched_scan_stop_wk);
13711 * It is possible that the user space process that is controlling the
13712 * indoor setting disappeared, so notify the regulatory core.
13714 regulatory_netlink_notify(notify->portid);
13718 static struct notifier_block nl80211_netlink_notifier = {
13719 .notifier_call = nl80211_netlink_notify,
13722 void cfg80211_ft_event(struct net_device *netdev,
13723 struct cfg80211_ft_event_params *ft_event)
13725 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
13726 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13727 struct sk_buff *msg;
13730 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13732 if (!ft_event->target_ap)
13735 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13739 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
13743 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13744 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13745 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13748 if (ft_event->ies &&
13749 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13751 if (ft_event->ric_ies &&
13752 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13753 ft_event->ric_ies))
13756 genlmsg_end(msg, hdr);
13758 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13759 NL80211_MCGRP_MLME, GFP_KERNEL);
13764 EXPORT_SYMBOL(cfg80211_ft_event);
13766 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13768 struct cfg80211_registered_device *rdev;
13769 struct sk_buff *msg;
13773 rdev = wiphy_to_rdev(wdev->wiphy);
13774 if (!rdev->crit_proto_nlportid)
13777 nlportid = rdev->crit_proto_nlportid;
13778 rdev->crit_proto_nlportid = 0;
13780 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13784 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13786 goto nla_put_failure;
13788 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13789 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13791 goto nla_put_failure;
13793 genlmsg_end(msg, hdr);
13795 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13800 genlmsg_cancel(msg, hdr);
13803 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13805 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13807 struct wiphy *wiphy = wdev->wiphy;
13808 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13809 struct sk_buff *msg;
13812 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13816 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13820 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13821 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13822 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13826 genlmsg_end(msg, hdr);
13828 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13829 NL80211_MCGRP_MLME, GFP_KERNEL);
13835 /* initialisation/exit functions */
13837 int nl80211_init(void)
13841 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13846 err = netlink_register_notifier(&nl80211_netlink_notifier);
13852 genl_unregister_family(&nl80211_fam);
13856 void nl80211_exit(void)
13858 netlink_unregister_notifier(&nl80211_netlink_notifier);
13859 genl_unregister_family(&nl80211_fam);