2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/slab.h>
11 #include <linux/list.h>
12 #include <linux/if_ether.h>
13 #include <linux/ieee80211.h>
14 #include <linux/nl80211.h>
15 #include <linux/rtnetlink.h>
16 #include <linux/netlink.h>
17 #include <linux/etherdevice.h>
18 #include <net/net_namespace.h>
19 #include <net/genetlink.h>
20 #include <net/cfg80211.h>
22 #include <net/inet_connection_sock.h>
28 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
33 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
38 /* the netlink family */
39 static struct genl_family nl80211_fam = {
40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
44 .maxattr = NL80211_ATTR_MAX,
46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
50 /* returns ERR_PTR values */
51 static struct wireless_dev *
52 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
54 struct cfg80211_registered_device *rdev;
55 struct wireless_dev *result = NULL;
56 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
57 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
64 if (!have_ifidx && !have_wdev_id)
65 return ERR_PTR(-EINVAL);
68 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
70 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
71 wiphy_idx = wdev_id >> 32;
74 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
75 struct wireless_dev *wdev;
77 if (wiphy_net(&rdev->wiphy) != netns)
80 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
101 return ERR_PTR(-ENODEV);
104 static struct cfg80211_registered_device *
105 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
107 struct cfg80211_registered_device *rdev = NULL, *tmp;
108 struct net_device *netdev;
112 if (!attrs[NL80211_ATTR_WIPHY] &&
113 !attrs[NL80211_ATTR_IFINDEX] &&
114 !attrs[NL80211_ATTR_WDEV])
115 return ERR_PTR(-EINVAL);
117 if (attrs[NL80211_ATTR_WIPHY])
118 rdev = cfg80211_rdev_by_wiphy_idx(
119 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
121 if (attrs[NL80211_ATTR_WDEV]) {
122 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
123 struct wireless_dev *wdev;
126 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
128 /* make sure wdev exists */
129 list_for_each_entry(wdev, &tmp->wdev_list, list) {
130 if (wdev->identifier != (u32)wdev_id)
139 if (rdev && tmp != rdev)
140 return ERR_PTR(-EINVAL);
145 if (attrs[NL80211_ATTR_IFINDEX]) {
146 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
147 netdev = dev_get_by_index(netns, ifindex);
149 if (netdev->ieee80211_ptr)
151 netdev->ieee80211_ptr->wiphy);
157 /* not wireless device -- return error */
159 return ERR_PTR(-EINVAL);
161 /* mismatch -- return error */
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
170 return ERR_PTR(-ENODEV);
172 if (netns != wiphy_net(&rdev->wiphy))
173 return ERR_PTR(-ENODEV);
179 * This function returns a pointer to the driver
180 * that the genl_info item that is passed refers to.
182 * The result of this can be a PTR_ERR and hence must
183 * be checked with IS_ERR() for errors.
185 static struct cfg80211_registered_device *
186 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
188 return __cfg80211_rdev_from_attrs(netns, info->attrs);
191 /* policy for the attributes */
192 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
193 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
194 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
196 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
198 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
199 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
200 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
201 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
202 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
204 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
205 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
206 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
207 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
208 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
210 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
211 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
212 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
214 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
215 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
217 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
218 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
219 .len = WLAN_MAX_KEY_LEN },
220 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
221 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
222 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
223 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
224 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
226 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
227 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
228 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
229 .len = IEEE80211_MAX_DATA_LEN },
230 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_DATA_LEN },
232 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
233 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
234 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
235 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
236 .len = NL80211_MAX_SUPP_RATES },
237 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
238 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
239 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
240 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
241 .len = IEEE80211_MAX_MESH_ID_LEN },
242 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
244 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
245 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
247 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
248 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
249 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
250 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
251 .len = NL80211_MAX_SUPP_RATES },
252 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
254 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
255 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
257 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
259 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
260 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
262 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
263 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
265 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
266 .len = IEEE80211_MAX_SSID_LEN },
267 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
268 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
269 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
270 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
271 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
272 [NL80211_ATTR_STA_FLAGS2] = {
273 .len = sizeof(struct nl80211_sta_flag_update),
275 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
276 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
277 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
278 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
279 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
280 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
281 [NL80211_ATTR_PID] = { .type = NLA_U32 },
282 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
283 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
284 .len = WLAN_PMKID_LEN },
285 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
286 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
287 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
288 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_DATA_LEN },
290 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
291 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
292 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
293 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
294 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
295 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
296 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
297 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
299 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
300 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
301 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
302 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
303 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
304 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
305 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
306 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
307 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
308 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
309 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
313 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
314 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
315 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
316 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
317 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
318 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
319 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
320 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
321 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
322 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
324 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
325 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
326 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
327 .len = NL80211_HT_CAPABILITY_LEN
329 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
330 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
331 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
332 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
333 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
334 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
335 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
336 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
337 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
338 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
339 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
340 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
341 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
342 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
343 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
344 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
346 .len = NL80211_VHT_CAPABILITY_LEN,
348 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
349 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
350 .len = IEEE80211_MAX_DATA_LEN },
351 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
352 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
353 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
354 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
355 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
356 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
357 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
358 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
359 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
360 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
361 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
362 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
363 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
366 /* policy for the key attributes */
367 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
368 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
369 [NL80211_KEY_IDX] = { .type = NLA_U8 },
370 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
371 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
372 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
373 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
374 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
375 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
378 /* policy for the key default flags */
379 static const struct nla_policy
380 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
381 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
382 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
385 /* policy for WoWLAN attributes */
386 static const struct nla_policy
387 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
388 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
389 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
390 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
391 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
392 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
393 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
394 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
395 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
396 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
399 static const struct nla_policy
400 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
401 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
402 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
403 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
404 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
405 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
406 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
407 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
408 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
410 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
411 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
413 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
414 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
415 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
418 /* policy for coalesce rule attributes */
419 static const struct nla_policy
420 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
421 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
422 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
423 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
426 /* policy for GTK rekey offload attributes */
427 static const struct nla_policy
428 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
429 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
430 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
431 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
434 static const struct nla_policy
435 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
436 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
437 .len = IEEE80211_MAX_SSID_LEN },
438 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
441 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
442 struct netlink_callback *cb,
443 struct cfg80211_registered_device **rdev,
444 struct wireless_dev **wdev)
451 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
452 nl80211_fam.attrbuf, nl80211_fam.maxattr,
457 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
458 nl80211_fam.attrbuf);
460 err = PTR_ERR(*wdev);
463 *rdev = wiphy_to_dev((*wdev)->wiphy);
464 /* 0 is the first index - add 1 to parse only once */
465 cb->args[0] = (*rdev)->wiphy_idx + 1;
466 cb->args[1] = (*wdev)->identifier;
468 /* subtract the 1 again here */
469 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
470 struct wireless_dev *tmp;
476 *rdev = wiphy_to_dev(wiphy);
479 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
480 if (tmp->identifier == cb->args[1]) {
498 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
504 static bool is_valid_ie_attr(const struct nlattr *attr)
512 pos = nla_data(attr);
533 /* message building helper */
534 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
537 /* since there is no private header just add the generic one */
538 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
541 static int nl80211_msg_put_channel(struct sk_buff *msg,
542 struct ieee80211_channel *chan,
545 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
547 goto nla_put_failure;
549 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
550 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
551 goto nla_put_failure;
552 if (chan->flags & IEEE80211_CHAN_NO_IR) {
553 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
554 goto nla_put_failure;
555 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
556 goto nla_put_failure;
558 if (chan->flags & IEEE80211_CHAN_RADAR) {
559 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
560 goto nla_put_failure;
564 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
566 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
568 goto nla_put_failure;
569 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
571 goto nla_put_failure;
576 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
577 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
578 goto nla_put_failure;
579 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
580 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
581 goto nla_put_failure;
582 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
583 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
584 goto nla_put_failure;
585 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
586 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
587 goto nla_put_failure;
590 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
591 DBM_TO_MBM(chan->max_power)))
592 goto nla_put_failure;
600 /* netlink command implementations */
607 bool def_uni, def_multi;
610 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
612 struct nlattr *tb[NL80211_KEY_MAX + 1];
613 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
618 k->def = !!tb[NL80211_KEY_DEFAULT];
619 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
628 if (tb[NL80211_KEY_IDX])
629 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
631 if (tb[NL80211_KEY_DATA]) {
632 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
633 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
636 if (tb[NL80211_KEY_SEQ]) {
637 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
638 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
641 if (tb[NL80211_KEY_CIPHER])
642 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
644 if (tb[NL80211_KEY_TYPE]) {
645 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
646 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
650 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
651 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
652 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
653 tb[NL80211_KEY_DEFAULT_TYPES],
654 nl80211_key_default_policy);
658 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
659 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
665 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
667 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
668 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
669 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
672 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
673 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
674 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
677 if (info->attrs[NL80211_ATTR_KEY_IDX])
678 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
680 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
681 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
683 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
684 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
693 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
694 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
695 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
699 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
700 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
701 int err = nla_parse_nested(
702 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
703 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
704 nl80211_key_default_policy);
708 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
709 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
715 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
719 memset(k, 0, sizeof(*k));
723 if (info->attrs[NL80211_ATTR_KEY])
724 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
726 err = nl80211_parse_key_old(info, k);
731 if (k->def && k->defmgmt)
735 if (k->def_uni || !k->def_multi)
741 if (k->idx < 4 || k->idx > 5)
744 if (k->idx < 0 || k->idx > 3)
747 if (k->idx < 0 || k->idx > 5)
755 static struct cfg80211_cached_keys *
756 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
757 struct nlattr *keys, bool *no_ht)
759 struct key_parse parse;
761 struct cfg80211_cached_keys *result;
762 int rem, err, def = 0;
764 result = kzalloc(sizeof(*result), GFP_KERNEL);
766 return ERR_PTR(-ENOMEM);
769 result->defmgmt = -1;
771 nla_for_each_nested(key, keys, rem) {
772 memset(&parse, 0, sizeof(parse));
775 err = nl80211_parse_key_new(key, &parse);
781 if (parse.idx < 0 || parse.idx > 4)
787 result->def = parse.idx;
788 if (!parse.def_uni || !parse.def_multi)
790 } else if (parse.defmgmt)
792 err = cfg80211_validate_key_settings(rdev, &parse.p,
793 parse.idx, false, NULL);
796 result->params[parse.idx].cipher = parse.p.cipher;
797 result->params[parse.idx].key_len = parse.p.key_len;
798 result->params[parse.idx].key = result->data[parse.idx];
799 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
801 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
802 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
814 static int nl80211_key_allowed(struct wireless_dev *wdev)
816 ASSERT_WDEV_LOCK(wdev);
818 switch (wdev->iftype) {
819 case NL80211_IFTYPE_AP:
820 case NL80211_IFTYPE_AP_VLAN:
821 case NL80211_IFTYPE_P2P_GO:
822 case NL80211_IFTYPE_MESH_POINT:
824 case NL80211_IFTYPE_ADHOC:
825 case NL80211_IFTYPE_STATION:
826 case NL80211_IFTYPE_P2P_CLIENT:
827 if (!wdev->current_bss)
837 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
839 struct nlattr *nl_modes = nla_nest_start(msg, attr);
843 goto nla_put_failure;
847 if ((ifmodes & 1) && nla_put_flag(msg, i))
848 goto nla_put_failure;
853 nla_nest_end(msg, nl_modes);
860 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
864 struct nlattr *nl_combis;
867 nl_combis = nla_nest_start(msg,
868 NL80211_ATTR_INTERFACE_COMBINATIONS);
870 goto nla_put_failure;
872 for (i = 0; i < wiphy->n_iface_combinations; i++) {
873 const struct ieee80211_iface_combination *c;
874 struct nlattr *nl_combi, *nl_limits;
876 c = &wiphy->iface_combinations[i];
878 nl_combi = nla_nest_start(msg, i + 1);
880 goto nla_put_failure;
882 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
884 goto nla_put_failure;
886 for (j = 0; j < c->n_limits; j++) {
887 struct nlattr *nl_limit;
889 nl_limit = nla_nest_start(msg, j + 1);
891 goto nla_put_failure;
892 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
894 goto nla_put_failure;
895 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
897 goto nla_put_failure;
898 nla_nest_end(msg, nl_limit);
901 nla_nest_end(msg, nl_limits);
903 if (c->beacon_int_infra_match &&
904 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
905 goto nla_put_failure;
906 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
907 c->num_different_channels) ||
908 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
910 goto nla_put_failure;
912 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
913 c->radar_detect_widths))
914 goto nla_put_failure;
916 nla_nest_end(msg, nl_combi);
919 nla_nest_end(msg, nl_combis);
927 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
930 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
931 struct nlattr *nl_tcp;
936 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
940 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
941 tcp->data_payload_max))
944 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
945 tcp->data_payload_max))
948 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
951 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
952 sizeof(*tcp->tok), tcp->tok))
955 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
956 tcp->data_interval_max))
959 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
960 tcp->wake_payload_max))
963 nla_nest_end(msg, nl_tcp);
967 static int nl80211_send_wowlan(struct sk_buff *msg,
968 struct cfg80211_registered_device *dev,
971 struct nlattr *nl_wowlan;
973 if (!dev->wiphy.wowlan)
976 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
980 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
981 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
982 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
983 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
984 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
985 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
986 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
987 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
988 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
989 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
990 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
991 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
992 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
993 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
994 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
995 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
998 if (dev->wiphy.wowlan->n_patterns) {
999 struct nl80211_pattern_support pat = {
1000 .max_patterns = dev->wiphy.wowlan->n_patterns,
1001 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
1002 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
1003 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
1006 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1011 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1014 nla_nest_end(msg, nl_wowlan);
1020 static int nl80211_send_coalesce(struct sk_buff *msg,
1021 struct cfg80211_registered_device *dev)
1023 struct nl80211_coalesce_rule_support rule;
1025 if (!dev->wiphy.coalesce)
1028 rule.max_rules = dev->wiphy.coalesce->n_rules;
1029 rule.max_delay = dev->wiphy.coalesce->max_delay;
1030 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1031 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1032 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1033 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1035 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1041 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1042 struct ieee80211_supported_band *sband)
1044 struct nlattr *nl_rates, *nl_rate;
1045 struct ieee80211_rate *rate;
1049 if (sband->ht_cap.ht_supported &&
1050 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1051 sizeof(sband->ht_cap.mcs),
1052 &sband->ht_cap.mcs) ||
1053 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1054 sband->ht_cap.cap) ||
1055 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1056 sband->ht_cap.ampdu_factor) ||
1057 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1058 sband->ht_cap.ampdu_density)))
1062 if (sband->vht_cap.vht_supported &&
1063 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1064 sizeof(sband->vht_cap.vht_mcs),
1065 &sband->vht_cap.vht_mcs) ||
1066 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1067 sband->vht_cap.cap)))
1071 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1075 for (i = 0; i < sband->n_bitrates; i++) {
1076 nl_rate = nla_nest_start(msg, i);
1080 rate = &sband->bitrates[i];
1081 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1084 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1086 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1089 nla_nest_end(msg, nl_rate);
1092 nla_nest_end(msg, nl_rates);
1098 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1099 const struct ieee80211_txrx_stypes *mgmt_stypes)
1102 struct nlattr *nl_ftypes, *nl_ifs;
1103 enum nl80211_iftype ift;
1109 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1113 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1114 nl_ftypes = nla_nest_start(msg, ift);
1118 stypes = mgmt_stypes[ift].tx;
1121 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1122 (i << 4) | IEEE80211_FTYPE_MGMT))
1127 nla_nest_end(msg, nl_ftypes);
1130 nla_nest_end(msg, nl_ifs);
1132 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1136 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1137 nl_ftypes = nla_nest_start(msg, ift);
1141 stypes = mgmt_stypes[ift].rx;
1144 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1145 (i << 4) | IEEE80211_FTYPE_MGMT))
1150 nla_nest_end(msg, nl_ftypes);
1152 nla_nest_end(msg, nl_ifs);
1157 struct nl80211_dump_wiphy_state {
1160 long split_start, band_start, chan_start;
1164 static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1165 struct sk_buff *msg, u32 portid, u32 seq,
1166 int flags, struct nl80211_dump_wiphy_state *state)
1169 struct nlattr *nl_bands, *nl_band;
1170 struct nlattr *nl_freqs, *nl_freq;
1171 struct nlattr *nl_cmds;
1172 struct nlattr *nl_vendor_cmds;
1173 enum ieee80211_band band;
1174 struct ieee80211_channel *chan;
1176 const struct ieee80211_txrx_stypes *mgmt_stypes =
1177 dev->wiphy.mgmt_stypes;
1180 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1184 if (WARN_ON(!state))
1187 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1188 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1189 wiphy_name(&dev->wiphy)) ||
1190 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1191 cfg80211_rdev_list_generation))
1192 goto nla_put_failure;
1194 switch (state->split_start) {
1196 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1197 dev->wiphy.retry_short) ||
1198 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1199 dev->wiphy.retry_long) ||
1200 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1201 dev->wiphy.frag_threshold) ||
1202 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1203 dev->wiphy.rts_threshold) ||
1204 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1205 dev->wiphy.coverage_class) ||
1206 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1207 dev->wiphy.max_scan_ssids) ||
1208 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1209 dev->wiphy.max_sched_scan_ssids) ||
1210 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1211 dev->wiphy.max_scan_ie_len) ||
1212 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1213 dev->wiphy.max_sched_scan_ie_len) ||
1214 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1215 dev->wiphy.max_match_sets))
1216 goto nla_put_failure;
1218 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1219 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1220 goto nla_put_failure;
1221 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1222 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1223 goto nla_put_failure;
1224 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1225 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1226 goto nla_put_failure;
1227 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1228 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1229 goto nla_put_failure;
1230 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1231 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1232 goto nla_put_failure;
1233 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1234 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1235 goto nla_put_failure;
1236 state->split_start++;
1240 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1241 sizeof(u32) * dev->wiphy.n_cipher_suites,
1242 dev->wiphy.cipher_suites))
1243 goto nla_put_failure;
1245 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1246 dev->wiphy.max_num_pmkids))
1247 goto nla_put_failure;
1249 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1250 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1251 goto nla_put_failure;
1253 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1254 dev->wiphy.available_antennas_tx) ||
1255 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1256 dev->wiphy.available_antennas_rx))
1257 goto nla_put_failure;
1259 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1260 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1261 dev->wiphy.probe_resp_offload))
1262 goto nla_put_failure;
1264 if ((dev->wiphy.available_antennas_tx ||
1265 dev->wiphy.available_antennas_rx) &&
1266 dev->ops->get_antenna) {
1267 u32 tx_ant = 0, rx_ant = 0;
1269 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1271 if (nla_put_u32(msg,
1272 NL80211_ATTR_WIPHY_ANTENNA_TX,
1275 NL80211_ATTR_WIPHY_ANTENNA_RX,
1277 goto nla_put_failure;
1281 state->split_start++;
1285 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1286 dev->wiphy.interface_modes))
1287 goto nla_put_failure;
1288 state->split_start++;
1292 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1294 goto nla_put_failure;
1296 for (band = state->band_start;
1297 band < IEEE80211_NUM_BANDS; band++) {
1298 struct ieee80211_supported_band *sband;
1300 sband = dev->wiphy.bands[band];
1305 nl_band = nla_nest_start(msg, band);
1307 goto nla_put_failure;
1309 switch (state->chan_start) {
1311 if (nl80211_send_band_rateinfo(msg, sband))
1312 goto nla_put_failure;
1313 state->chan_start++;
1317 /* add frequencies */
1318 nl_freqs = nla_nest_start(
1319 msg, NL80211_BAND_ATTR_FREQS);
1321 goto nla_put_failure;
1323 for (i = state->chan_start - 1;
1324 i < sband->n_channels;
1326 nl_freq = nla_nest_start(msg, i);
1328 goto nla_put_failure;
1330 chan = &sband->channels[i];
1332 if (nl80211_msg_put_channel(
1335 goto nla_put_failure;
1337 nla_nest_end(msg, nl_freq);
1341 if (i < sband->n_channels)
1342 state->chan_start = i + 2;
1344 state->chan_start = 0;
1345 nla_nest_end(msg, nl_freqs);
1348 nla_nest_end(msg, nl_band);
1351 /* start again here */
1352 if (state->chan_start)
1357 nla_nest_end(msg, nl_bands);
1359 if (band < IEEE80211_NUM_BANDS)
1360 state->band_start = band + 1;
1362 state->band_start = 0;
1364 /* if bands & channels are done, continue outside */
1365 if (state->band_start == 0 && state->chan_start == 0)
1366 state->split_start++;
1370 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1372 goto nla_put_failure;
1375 #define CMD(op, n) \
1377 if (dev->ops->op) { \
1379 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1380 goto nla_put_failure; \
1384 CMD(add_virtual_intf, NEW_INTERFACE);
1385 CMD(change_virtual_intf, SET_INTERFACE);
1386 CMD(add_key, NEW_KEY);
1387 CMD(start_ap, START_AP);
1388 CMD(add_station, NEW_STATION);
1389 CMD(add_mpath, NEW_MPATH);
1390 CMD(update_mesh_config, SET_MESH_CONFIG);
1391 CMD(change_bss, SET_BSS);
1392 CMD(auth, AUTHENTICATE);
1393 CMD(assoc, ASSOCIATE);
1394 CMD(deauth, DEAUTHENTICATE);
1395 CMD(disassoc, DISASSOCIATE);
1396 CMD(join_ibss, JOIN_IBSS);
1397 CMD(join_mesh, JOIN_MESH);
1398 CMD(set_pmksa, SET_PMKSA);
1399 CMD(del_pmksa, DEL_PMKSA);
1400 CMD(flush_pmksa, FLUSH_PMKSA);
1401 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1402 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1403 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1404 CMD(mgmt_tx, FRAME);
1405 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1406 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1408 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1409 goto nla_put_failure;
1411 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1412 dev->ops->join_mesh) {
1414 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1415 goto nla_put_failure;
1417 CMD(set_wds_peer, SET_WDS_PEER);
1418 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1419 CMD(tdls_mgmt, TDLS_MGMT);
1420 CMD(tdls_oper, TDLS_OPER);
1422 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1423 CMD(sched_scan_start, START_SCHED_SCAN);
1424 CMD(probe_client, PROBE_CLIENT);
1425 CMD(set_noack_map, SET_NOACK_MAP);
1426 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1428 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1429 goto nla_put_failure;
1431 CMD(start_p2p_device, START_P2P_DEVICE);
1432 CMD(set_mcast_rate, SET_MCAST_RATE);
1434 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1435 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1436 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1437 CMD(channel_switch, CHANNEL_SWITCH);
1440 #ifdef CONFIG_NL80211_TESTMODE
1441 CMD(testmode_cmd, TESTMODE);
1446 if (dev->ops->connect || dev->ops->auth) {
1448 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1449 goto nla_put_failure;
1452 if (dev->ops->disconnect || dev->ops->deauth) {
1454 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1455 goto nla_put_failure;
1458 nla_nest_end(msg, nl_cmds);
1459 state->split_start++;
1463 if (dev->ops->remain_on_channel &&
1464 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1466 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1467 dev->wiphy.max_remain_on_channel_duration))
1468 goto nla_put_failure;
1470 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1471 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1472 goto nla_put_failure;
1474 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1475 goto nla_put_failure;
1476 state->split_start++;
1481 if (nl80211_send_wowlan(msg, dev, state->split))
1482 goto nla_put_failure;
1483 state->split_start++;
1487 state->split_start++;
1490 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1491 dev->wiphy.software_iftypes))
1492 goto nla_put_failure;
1494 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1496 goto nla_put_failure;
1498 state->split_start++;
1502 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1503 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1504 dev->wiphy.ap_sme_capa))
1505 goto nla_put_failure;
1507 features = dev->wiphy.features;
1509 * We can only add the per-channel limit information if the
1510 * dump is split, otherwise it makes it too big. Therefore
1511 * only advertise it in that case.
1514 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1515 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1516 goto nla_put_failure;
1518 if (dev->wiphy.ht_capa_mod_mask &&
1519 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1520 sizeof(*dev->wiphy.ht_capa_mod_mask),
1521 dev->wiphy.ht_capa_mod_mask))
1522 goto nla_put_failure;
1524 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1525 dev->wiphy.max_acl_mac_addrs &&
1526 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1527 dev->wiphy.max_acl_mac_addrs))
1528 goto nla_put_failure;
1531 * Any information below this point is only available to
1532 * applications that can deal with it being split. This
1533 * helps ensure that newly added capabilities don't break
1534 * older tools by overrunning their buffers.
1536 * We still increment split_start so that in the split
1537 * case we'll continue with more data in the next round,
1538 * but break unconditionally so unsplit data stops here.
1540 state->split_start++;
1543 if (dev->wiphy.extended_capabilities &&
1544 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1545 dev->wiphy.extended_capabilities_len,
1546 dev->wiphy.extended_capabilities) ||
1547 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1548 dev->wiphy.extended_capabilities_len,
1549 dev->wiphy.extended_capabilities_mask)))
1550 goto nla_put_failure;
1552 if (dev->wiphy.vht_capa_mod_mask &&
1553 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1554 sizeof(*dev->wiphy.vht_capa_mod_mask),
1555 dev->wiphy.vht_capa_mod_mask))
1556 goto nla_put_failure;
1558 state->split_start++;
1561 if (nl80211_send_coalesce(msg, dev))
1562 goto nla_put_failure;
1564 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1565 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1566 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1567 goto nla_put_failure;
1568 state->split_start++;
1571 nl_vendor_cmds = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1572 if (!nl_vendor_cmds)
1573 goto nla_put_failure;
1575 for (i = 0; i < dev->wiphy.n_vendor_commands; i++)
1576 if (nla_put(msg, i + 1,
1577 sizeof(struct nl80211_vendor_cmd_info),
1578 &dev->wiphy.vendor_commands[i].info))
1579 goto nla_put_failure;
1580 nla_nest_end(msg, nl_vendor_cmds);
1583 state->split_start = 0;
1586 return genlmsg_end(msg, hdr);
1589 genlmsg_cancel(msg, hdr);
1593 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1594 struct netlink_callback *cb,
1595 struct nl80211_dump_wiphy_state *state)
1597 struct nlattr **tb = nl80211_fam.attrbuf;
1598 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1599 tb, nl80211_fam.maxattr, nl80211_policy);
1600 /* ignore parse errors for backward compatibility */
1604 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1605 if (tb[NL80211_ATTR_WIPHY])
1606 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1607 if (tb[NL80211_ATTR_WDEV])
1608 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1609 if (tb[NL80211_ATTR_IFINDEX]) {
1610 struct net_device *netdev;
1611 struct cfg80211_registered_device *rdev;
1612 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1614 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1617 if (netdev->ieee80211_ptr) {
1618 rdev = wiphy_to_dev(
1619 netdev->ieee80211_ptr->wiphy);
1620 state->filter_wiphy = rdev->wiphy_idx;
1628 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1631 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1632 struct cfg80211_registered_device *dev;
1636 state = kzalloc(sizeof(*state), GFP_KERNEL);
1641 state->filter_wiphy = -1;
1642 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1648 cb->args[0] = (long)state;
1651 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1652 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1654 if (++idx <= state->start)
1656 if (state->filter_wiphy != -1 &&
1657 state->filter_wiphy != dev->wiphy_idx)
1659 /* attempt to fit multiple wiphy data chunks into the skb */
1661 ret = nl80211_send_wiphy(dev, skb,
1662 NETLINK_CB(cb->skb).portid,
1664 NLM_F_MULTI, state);
1667 * If sending the wiphy data didn't fit (ENOBUFS
1668 * or EMSGSIZE returned), this SKB is still
1669 * empty (so it's not too big because another
1670 * wiphy dataset is already in the skb) and
1671 * we've not tried to adjust the dump allocation
1672 * yet ... then adjust the alloc size to be
1673 * bigger, and return 1 but with the empty skb.
1674 * This results in an empty message being RX'ed
1675 * in userspace, but that is ignored.
1677 * We can then retry with the larger buffer.
1679 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1681 cb->min_dump_alloc < 4096) {
1682 cb->min_dump_alloc = 4096;
1689 } while (state->split_start > 0);
1699 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1701 kfree((void *)cb->args[0]);
1705 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1707 struct sk_buff *msg;
1708 struct cfg80211_registered_device *dev = info->user_ptr[0];
1709 struct nl80211_dump_wiphy_state state = {};
1711 msg = nlmsg_new(4096, GFP_KERNEL);
1715 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1721 return genlmsg_reply(msg, info);
1724 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1725 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1726 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1727 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1728 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1729 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1732 static int parse_txq_params(struct nlattr *tb[],
1733 struct ieee80211_txq_params *txq_params)
1735 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1736 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1737 !tb[NL80211_TXQ_ATTR_AIFS])
1740 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1741 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1742 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1743 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1744 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1746 if (txq_params->ac >= NL80211_NUM_ACS)
1752 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1755 * You can only set the channel explicitly for WDS interfaces,
1756 * all others have their channel managed via their respective
1757 * "establish a connection" command (connect, join, ...)
1759 * For AP/GO and mesh mode, the channel can be set with the
1760 * channel userspace API, but is only stored and passed to the
1761 * low-level driver when the AP starts or the mesh is joined.
1762 * This is for backward compatibility, userspace can also give
1763 * the channel in the start-ap or join-mesh commands instead.
1765 * Monitors are special as they are normally slaved to
1766 * whatever else is going on, so they have their own special
1767 * operation to set the monitor channel if possible.
1770 wdev->iftype == NL80211_IFTYPE_AP ||
1771 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1772 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1773 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1776 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1777 struct genl_info *info,
1778 struct cfg80211_chan_def *chandef)
1782 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1785 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1787 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1788 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1789 chandef->center_freq1 = control_freq;
1790 chandef->center_freq2 = 0;
1792 /* Primary channel not allowed */
1793 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1796 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1797 enum nl80211_channel_type chantype;
1799 chantype = nla_get_u32(
1800 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1803 case NL80211_CHAN_NO_HT:
1804 case NL80211_CHAN_HT20:
1805 case NL80211_CHAN_HT40PLUS:
1806 case NL80211_CHAN_HT40MINUS:
1807 cfg80211_chandef_create(chandef, chandef->chan,
1813 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1815 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1816 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1817 chandef->center_freq1 =
1819 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1820 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1821 chandef->center_freq2 =
1823 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1826 if (!cfg80211_chandef_valid(chandef))
1829 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1830 IEEE80211_CHAN_DISABLED))
1833 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1834 chandef->width == NL80211_CHAN_WIDTH_10) &&
1835 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1841 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1842 struct wireless_dev *wdev,
1843 struct genl_info *info)
1845 struct cfg80211_chan_def chandef;
1847 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1850 iftype = wdev->iftype;
1852 if (!nl80211_can_set_dev_channel(wdev))
1855 result = nl80211_parse_chandef(rdev, info, &chandef);
1860 case NL80211_IFTYPE_AP:
1861 case NL80211_IFTYPE_P2P_GO:
1862 if (wdev->beacon_interval) {
1866 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1870 wdev->preset_chandef = chandef;
1873 case NL80211_IFTYPE_MESH_POINT:
1874 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1876 case NL80211_IFTYPE_MONITOR:
1877 result = cfg80211_set_monitor_channel(rdev, &chandef);
1886 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1889 struct net_device *netdev = info->user_ptr[1];
1891 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1894 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1897 struct net_device *dev = info->user_ptr[1];
1898 struct wireless_dev *wdev = dev->ieee80211_ptr;
1901 if (!info->attrs[NL80211_ATTR_MAC])
1904 if (netif_running(dev))
1907 if (!rdev->ops->set_wds_peer)
1910 if (wdev->iftype != NL80211_IFTYPE_WDS)
1913 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1914 return rdev_set_wds_peer(rdev, dev, bssid);
1918 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1920 struct cfg80211_registered_device *rdev;
1921 struct net_device *netdev = NULL;
1922 struct wireless_dev *wdev;
1923 int result = 0, rem_txq_params = 0;
1924 struct nlattr *nl_txq_params;
1926 u8 retry_short = 0, retry_long = 0;
1927 u32 frag_threshold = 0, rts_threshold = 0;
1928 u8 coverage_class = 0;
1933 * Try to find the wiphy and netdev. Normally this
1934 * function shouldn't need the netdev, but this is
1935 * done for backward compatibility -- previously
1936 * setting the channel was done per wiphy, but now
1937 * it is per netdev. Previous userland like hostapd
1938 * also passed a netdev to set_wiphy, so that it is
1939 * possible to let that go to the right netdev!
1942 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1943 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1945 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1946 if (netdev && netdev->ieee80211_ptr)
1947 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1953 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1956 return PTR_ERR(rdev);
1961 wdev = netdev->ieee80211_ptr;
1964 * end workaround code, by now the rdev is available
1965 * and locked, and wdev may or may not be NULL.
1968 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1969 result = cfg80211_dev_rename(
1970 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1975 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1976 struct ieee80211_txq_params txq_params;
1977 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1979 if (!rdev->ops->set_txq_params) {
1980 result = -EOPNOTSUPP;
1989 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1990 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1995 if (!netif_running(netdev)) {
2000 nla_for_each_nested(nl_txq_params,
2001 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2003 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2004 nla_data(nl_txq_params),
2005 nla_len(nl_txq_params),
2007 result = parse_txq_params(tb, &txq_params);
2011 result = rdev_set_txq_params(rdev, netdev,
2018 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2019 result = __nl80211_set_channel(rdev,
2020 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2026 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2027 struct wireless_dev *txp_wdev = wdev;
2028 enum nl80211_tx_power_setting type;
2031 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2034 if (!rdev->ops->set_tx_power) {
2035 result = -EOPNOTSUPP;
2039 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2040 type = nla_get_u32(info->attrs[idx]);
2042 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2043 (type != NL80211_TX_POWER_AUTOMATIC)) {
2048 if (type != NL80211_TX_POWER_AUTOMATIC) {
2049 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2050 mbm = nla_get_u32(info->attrs[idx]);
2053 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2058 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2059 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2061 if ((!rdev->wiphy.available_antennas_tx &&
2062 !rdev->wiphy.available_antennas_rx) ||
2063 !rdev->ops->set_antenna) {
2064 result = -EOPNOTSUPP;
2068 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2069 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2071 /* reject antenna configurations which don't match the
2072 * available antenna masks, except for the "all" mask */
2073 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2074 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
2079 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2080 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2082 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2089 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2090 retry_short = nla_get_u8(
2091 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2092 if (retry_short == 0) {
2096 changed |= WIPHY_PARAM_RETRY_SHORT;
2099 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2100 retry_long = nla_get_u8(
2101 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2102 if (retry_long == 0) {
2106 changed |= WIPHY_PARAM_RETRY_LONG;
2109 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2110 frag_threshold = nla_get_u32(
2111 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2112 if (frag_threshold < 256) {
2116 if (frag_threshold != (u32) -1) {
2118 * Fragments (apart from the last one) are required to
2119 * have even length. Make the fragmentation code
2120 * simpler by stripping LSB should someone try to use
2121 * odd threshold value.
2123 frag_threshold &= ~0x1;
2125 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2128 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2129 rts_threshold = nla_get_u32(
2130 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2131 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2134 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2135 coverage_class = nla_get_u8(
2136 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2137 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2141 u8 old_retry_short, old_retry_long;
2142 u32 old_frag_threshold, old_rts_threshold;
2143 u8 old_coverage_class;
2145 if (!rdev->ops->set_wiphy_params) {
2146 result = -EOPNOTSUPP;
2150 old_retry_short = rdev->wiphy.retry_short;
2151 old_retry_long = rdev->wiphy.retry_long;
2152 old_frag_threshold = rdev->wiphy.frag_threshold;
2153 old_rts_threshold = rdev->wiphy.rts_threshold;
2154 old_coverage_class = rdev->wiphy.coverage_class;
2156 if (changed & WIPHY_PARAM_RETRY_SHORT)
2157 rdev->wiphy.retry_short = retry_short;
2158 if (changed & WIPHY_PARAM_RETRY_LONG)
2159 rdev->wiphy.retry_long = retry_long;
2160 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2161 rdev->wiphy.frag_threshold = frag_threshold;
2162 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2163 rdev->wiphy.rts_threshold = rts_threshold;
2164 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2165 rdev->wiphy.coverage_class = coverage_class;
2167 result = rdev_set_wiphy_params(rdev, changed);
2169 rdev->wiphy.retry_short = old_retry_short;
2170 rdev->wiphy.retry_long = old_retry_long;
2171 rdev->wiphy.frag_threshold = old_frag_threshold;
2172 rdev->wiphy.rts_threshold = old_rts_threshold;
2173 rdev->wiphy.coverage_class = old_coverage_class;
2183 static inline u64 wdev_id(struct wireless_dev *wdev)
2185 return (u64)wdev->identifier |
2186 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2189 static int nl80211_send_chandef(struct sk_buff *msg,
2190 const struct cfg80211_chan_def *chandef)
2192 WARN_ON(!cfg80211_chandef_valid(chandef));
2194 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2195 chandef->chan->center_freq))
2197 switch (chandef->width) {
2198 case NL80211_CHAN_WIDTH_20_NOHT:
2199 case NL80211_CHAN_WIDTH_20:
2200 case NL80211_CHAN_WIDTH_40:
2201 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2202 cfg80211_get_chandef_type(chandef)))
2208 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2210 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2212 if (chandef->center_freq2 &&
2213 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2218 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2219 struct cfg80211_registered_device *rdev,
2220 struct wireless_dev *wdev)
2222 struct net_device *dev = wdev->netdev;
2225 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2230 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2231 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2232 goto nla_put_failure;
2234 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2235 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2236 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2237 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2238 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2239 rdev->devlist_generation ^
2240 (cfg80211_rdev_list_generation << 2)))
2241 goto nla_put_failure;
2243 if (rdev->ops->get_channel) {
2245 struct cfg80211_chan_def chandef;
2247 ret = rdev_get_channel(rdev, wdev, &chandef);
2249 if (nl80211_send_chandef(msg, &chandef))
2250 goto nla_put_failure;
2254 if (wdev->ssid_len) {
2255 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2256 goto nla_put_failure;
2259 return genlmsg_end(msg, hdr);
2262 genlmsg_cancel(msg, hdr);
2266 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2270 int wp_start = cb->args[0];
2271 int if_start = cb->args[1];
2272 struct cfg80211_registered_device *rdev;
2273 struct wireless_dev *wdev;
2276 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2277 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2279 if (wp_idx < wp_start) {
2285 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2286 if (if_idx < if_start) {
2290 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2291 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2303 cb->args[0] = wp_idx;
2304 cb->args[1] = if_idx;
2309 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2311 struct sk_buff *msg;
2312 struct cfg80211_registered_device *dev = info->user_ptr[0];
2313 struct wireless_dev *wdev = info->user_ptr[1];
2315 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2319 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2325 return genlmsg_reply(msg, info);
2328 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2329 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2330 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2331 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2332 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2333 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2334 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2337 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2339 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2347 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2348 nla, mntr_flags_policy))
2351 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2353 *mntrflags |= (1<<flag);
2358 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2359 struct net_device *netdev, u8 use_4addr,
2360 enum nl80211_iftype iftype)
2363 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2369 case NL80211_IFTYPE_AP_VLAN:
2370 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2373 case NL80211_IFTYPE_STATION:
2374 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2384 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2387 struct vif_params params;
2389 enum nl80211_iftype otype, ntype;
2390 struct net_device *dev = info->user_ptr[1];
2391 u32 _flags, *flags = NULL;
2392 bool change = false;
2394 memset(¶ms, 0, sizeof(params));
2396 otype = ntype = dev->ieee80211_ptr->iftype;
2398 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2399 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2402 if (ntype > NL80211_IFTYPE_MAX)
2406 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2407 struct wireless_dev *wdev = dev->ieee80211_ptr;
2409 if (ntype != NL80211_IFTYPE_MESH_POINT)
2411 if (netif_running(dev))
2415 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2416 IEEE80211_MAX_MESH_ID_LEN);
2417 wdev->mesh_id_up_len =
2418 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2419 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2420 wdev->mesh_id_up_len);
2424 if (info->attrs[NL80211_ATTR_4ADDR]) {
2425 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2427 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2431 params.use_4addr = -1;
2434 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2435 if (ntype != NL80211_IFTYPE_MONITOR)
2437 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2446 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2447 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2451 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2455 if (!err && params.use_4addr != -1)
2456 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2461 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2463 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2464 struct vif_params params;
2465 struct wireless_dev *wdev;
2466 struct sk_buff *msg;
2468 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2471 memset(¶ms, 0, sizeof(params));
2473 if (!info->attrs[NL80211_ATTR_IFNAME])
2476 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2477 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2478 if (type > NL80211_IFTYPE_MAX)
2482 if (!rdev->ops->add_virtual_intf ||
2483 !(rdev->wiphy.interface_modes & (1 << type)))
2486 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2487 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2489 if (!is_valid_ether_addr(params.macaddr))
2490 return -EADDRNOTAVAIL;
2493 if (info->attrs[NL80211_ATTR_4ADDR]) {
2494 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2495 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2500 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2504 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2505 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2508 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2509 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2512 wdev = rdev_add_virtual_intf(rdev,
2513 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2514 type, err ? NULL : &flags, ¶ms);
2517 return PTR_ERR(wdev);
2521 case NL80211_IFTYPE_MESH_POINT:
2522 if (!info->attrs[NL80211_ATTR_MESH_ID])
2525 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2526 IEEE80211_MAX_MESH_ID_LEN);
2527 wdev->mesh_id_up_len =
2528 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2529 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2530 wdev->mesh_id_up_len);
2533 case NL80211_IFTYPE_P2P_DEVICE:
2535 * P2P Device doesn't have a netdev, so doesn't go
2536 * through the netdev notifier and must be added here
2538 mutex_init(&wdev->mtx);
2539 INIT_LIST_HEAD(&wdev->event_list);
2540 spin_lock_init(&wdev->event_lock);
2541 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2542 spin_lock_init(&wdev->mgmt_registrations_lock);
2544 wdev->identifier = ++rdev->wdev_id;
2545 list_add_rcu(&wdev->list, &rdev->wdev_list);
2546 rdev->devlist_generation++;
2552 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2558 return genlmsg_reply(msg, info);
2561 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2564 struct wireless_dev *wdev = info->user_ptr[1];
2566 if (!rdev->ops->del_virtual_intf)
2570 * If we remove a wireless device without a netdev then clear
2571 * user_ptr[1] so that nl80211_post_doit won't dereference it
2572 * to check if it needs to do dev_put(). Otherwise it crashes
2573 * since the wdev has been freed, unlike with a netdev where
2574 * we need the dev_put() for the netdev to really be freed.
2577 info->user_ptr[1] = NULL;
2579 return rdev_del_virtual_intf(rdev, wdev);
2582 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2585 struct net_device *dev = info->user_ptr[1];
2588 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2591 if (!rdev->ops->set_noack_map)
2594 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2596 return rdev_set_noack_map(rdev, dev, noack_map);
2599 struct get_key_cookie {
2600 struct sk_buff *msg;
2605 static void get_key_callback(void *c, struct key_params *params)
2608 struct get_key_cookie *cookie = c;
2611 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2612 params->key_len, params->key)) ||
2614 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2615 params->seq_len, params->seq)) ||
2617 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2619 goto nla_put_failure;
2621 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2623 goto nla_put_failure;
2626 nla_put(cookie->msg, NL80211_KEY_DATA,
2627 params->key_len, params->key)) ||
2629 nla_put(cookie->msg, NL80211_KEY_SEQ,
2630 params->seq_len, params->seq)) ||
2632 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2634 goto nla_put_failure;
2636 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2637 goto nla_put_failure;
2639 nla_nest_end(cookie->msg, key);
2646 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2650 struct net_device *dev = info->user_ptr[1];
2652 const u8 *mac_addr = NULL;
2654 struct get_key_cookie cookie = {
2658 struct sk_buff *msg;
2660 if (info->attrs[NL80211_ATTR_KEY_IDX])
2661 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2666 if (info->attrs[NL80211_ATTR_MAC])
2667 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2669 pairwise = !!mac_addr;
2670 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2671 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2672 if (kt >= NUM_NL80211_KEYTYPES)
2674 if (kt != NL80211_KEYTYPE_GROUP &&
2675 kt != NL80211_KEYTYPE_PAIRWISE)
2677 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2680 if (!rdev->ops->get_key)
2683 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2687 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2688 NL80211_CMD_NEW_KEY);
2693 cookie.idx = key_idx;
2695 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2696 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2697 goto nla_put_failure;
2699 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2700 goto nla_put_failure;
2702 if (pairwise && mac_addr &&
2703 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2706 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2713 goto nla_put_failure;
2715 genlmsg_end(msg, hdr);
2716 return genlmsg_reply(msg, info);
2725 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2728 struct key_parse key;
2730 struct net_device *dev = info->user_ptr[1];
2732 err = nl80211_parse_key(info, &key);
2739 /* only support setting default key */
2740 if (!key.def && !key.defmgmt)
2743 wdev_lock(dev->ieee80211_ptr);
2746 if (!rdev->ops->set_default_key) {
2751 err = nl80211_key_allowed(dev->ieee80211_ptr);
2755 err = rdev_set_default_key(rdev, dev, key.idx,
2756 key.def_uni, key.def_multi);
2761 #ifdef CONFIG_CFG80211_WEXT
2762 dev->ieee80211_ptr->wext.default_key = key.idx;
2765 if (key.def_uni || !key.def_multi) {
2770 if (!rdev->ops->set_default_mgmt_key) {
2775 err = nl80211_key_allowed(dev->ieee80211_ptr);
2779 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2783 #ifdef CONFIG_CFG80211_WEXT
2784 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2789 wdev_unlock(dev->ieee80211_ptr);
2794 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2798 struct net_device *dev = info->user_ptr[1];
2799 struct key_parse key;
2800 const u8 *mac_addr = NULL;
2802 err = nl80211_parse_key(info, &key);
2809 if (info->attrs[NL80211_ATTR_MAC])
2810 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2812 if (key.type == -1) {
2814 key.type = NL80211_KEYTYPE_PAIRWISE;
2816 key.type = NL80211_KEYTYPE_GROUP;
2820 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2821 key.type != NL80211_KEYTYPE_GROUP)
2824 if (!rdev->ops->add_key)
2827 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2828 key.type == NL80211_KEYTYPE_PAIRWISE,
2832 wdev_lock(dev->ieee80211_ptr);
2833 err = nl80211_key_allowed(dev->ieee80211_ptr);
2835 err = rdev_add_key(rdev, dev, key.idx,
2836 key.type == NL80211_KEYTYPE_PAIRWISE,
2838 wdev_unlock(dev->ieee80211_ptr);
2843 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2847 struct net_device *dev = info->user_ptr[1];
2848 u8 *mac_addr = NULL;
2849 struct key_parse key;
2851 err = nl80211_parse_key(info, &key);
2855 if (info->attrs[NL80211_ATTR_MAC])
2856 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2858 if (key.type == -1) {
2860 key.type = NL80211_KEYTYPE_PAIRWISE;
2862 key.type = NL80211_KEYTYPE_GROUP;
2866 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2867 key.type != NL80211_KEYTYPE_GROUP)
2870 if (!rdev->ops->del_key)
2873 wdev_lock(dev->ieee80211_ptr);
2874 err = nl80211_key_allowed(dev->ieee80211_ptr);
2876 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2877 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2881 err = rdev_del_key(rdev, dev, key.idx,
2882 key.type == NL80211_KEYTYPE_PAIRWISE,
2885 #ifdef CONFIG_CFG80211_WEXT
2887 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2888 dev->ieee80211_ptr->wext.default_key = -1;
2889 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2890 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2893 wdev_unlock(dev->ieee80211_ptr);
2898 /* This function returns an error or the number of nested attributes */
2899 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2901 struct nlattr *attr;
2902 int n_entries = 0, tmp;
2904 nla_for_each_nested(attr, nl_attr, tmp) {
2905 if (nla_len(attr) != ETH_ALEN)
2915 * This function parses ACL information and allocates memory for ACL data.
2916 * On successful return, the calling function is responsible to free the
2917 * ACL buffer returned by this function.
2919 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2920 struct genl_info *info)
2922 enum nl80211_acl_policy acl_policy;
2923 struct nlattr *attr;
2924 struct cfg80211_acl_data *acl;
2925 int i = 0, n_entries, tmp;
2927 if (!wiphy->max_acl_mac_addrs)
2928 return ERR_PTR(-EOPNOTSUPP);
2930 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2931 return ERR_PTR(-EINVAL);
2933 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2934 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2935 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2936 return ERR_PTR(-EINVAL);
2938 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2939 return ERR_PTR(-EINVAL);
2941 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2943 return ERR_PTR(n_entries);
2945 if (n_entries > wiphy->max_acl_mac_addrs)
2946 return ERR_PTR(-ENOTSUPP);
2948 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2951 return ERR_PTR(-ENOMEM);
2953 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2954 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2958 acl->n_acl_entries = n_entries;
2959 acl->acl_policy = acl_policy;
2964 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2967 struct net_device *dev = info->user_ptr[1];
2968 struct cfg80211_acl_data *acl;
2971 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2972 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2975 if (!dev->ieee80211_ptr->beacon_interval)
2978 acl = parse_acl_data(&rdev->wiphy, info);
2980 return PTR_ERR(acl);
2982 err = rdev_set_mac_acl(rdev, dev, acl);
2989 static int nl80211_parse_beacon(struct nlattr *attrs[],
2990 struct cfg80211_beacon_data *bcn)
2992 bool haveinfo = false;
2994 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
2995 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
2996 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2997 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3000 memset(bcn, 0, sizeof(*bcn));
3002 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3003 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3004 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3010 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3011 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3012 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3019 if (attrs[NL80211_ATTR_IE]) {
3020 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3021 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3024 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3025 bcn->proberesp_ies =
3026 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3027 bcn->proberesp_ies_len =
3028 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3031 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3032 bcn->assocresp_ies =
3033 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3034 bcn->assocresp_ies_len =
3035 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3038 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3039 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3040 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3046 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3047 struct cfg80211_ap_settings *params)
3049 struct wireless_dev *wdev;
3052 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3053 if (wdev->iftype != NL80211_IFTYPE_AP &&
3054 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3057 if (!wdev->preset_chandef.chan)
3060 params->chandef = wdev->preset_chandef;
3068 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3069 enum nl80211_auth_type auth_type,
3070 enum nl80211_commands cmd)
3072 if (auth_type > NL80211_AUTHTYPE_MAX)
3076 case NL80211_CMD_AUTHENTICATE:
3077 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3078 auth_type == NL80211_AUTHTYPE_SAE)
3081 case NL80211_CMD_CONNECT:
3082 case NL80211_CMD_START_AP:
3083 /* SAE not supported yet */
3084 if (auth_type == NL80211_AUTHTYPE_SAE)
3092 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3095 struct net_device *dev = info->user_ptr[1];
3096 struct wireless_dev *wdev = dev->ieee80211_ptr;
3097 struct cfg80211_ap_settings params;
3099 u8 radar_detect_width = 0;
3101 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3102 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3105 if (!rdev->ops->start_ap)
3108 if (wdev->beacon_interval)
3111 memset(¶ms, 0, sizeof(params));
3113 /* these are required for START_AP */
3114 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3115 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3116 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3119 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3123 params.beacon_interval =
3124 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3125 params.dtim_period =
3126 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3128 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3133 * In theory, some of these attributes should be required here
3134 * but since they were not used when the command was originally
3135 * added, keep them optional for old user space programs to let
3136 * them continue to work with drivers that do not need the
3137 * additional information -- drivers must check!
3139 if (info->attrs[NL80211_ATTR_SSID]) {
3140 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3142 nla_len(info->attrs[NL80211_ATTR_SSID]);
3143 if (params.ssid_len == 0 ||
3144 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3148 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3149 params.hidden_ssid = nla_get_u32(
3150 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3151 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3152 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3153 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3157 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3159 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3160 params.auth_type = nla_get_u32(
3161 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3162 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3163 NL80211_CMD_START_AP))
3166 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3168 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3169 NL80211_MAX_NR_CIPHER_SUITES);
3173 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3174 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3176 params.inactivity_timeout = nla_get_u16(
3177 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3180 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3181 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3183 params.p2p_ctwindow =
3184 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3185 if (params.p2p_ctwindow > 127)
3187 if (params.p2p_ctwindow != 0 &&
3188 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3192 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3195 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3197 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3200 params.p2p_opp_ps = tmp;
3201 if (params.p2p_opp_ps != 0 &&
3202 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3206 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3207 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3210 } else if (wdev->preset_chandef.chan) {
3211 params.chandef = wdev->preset_chandef;
3212 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3215 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
3218 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
3222 radar_detect_width = BIT(params.chandef.width);
3223 params.radar_required = true;
3226 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3227 params.chandef.chan,
3229 radar_detect_width);
3233 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3234 params.acl = parse_acl_data(&rdev->wiphy, info);
3235 if (IS_ERR(params.acl))
3236 return PTR_ERR(params.acl);
3240 err = rdev_start_ap(rdev, dev, ¶ms);
3242 wdev->preset_chandef = params.chandef;
3243 wdev->beacon_interval = params.beacon_interval;
3244 wdev->channel = params.chandef.chan;
3245 wdev->ssid_len = params.ssid_len;
3246 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3255 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3258 struct net_device *dev = info->user_ptr[1];
3259 struct wireless_dev *wdev = dev->ieee80211_ptr;
3260 struct cfg80211_beacon_data params;
3263 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3264 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3267 if (!rdev->ops->change_beacon)
3270 if (!wdev->beacon_interval)
3273 err = nl80211_parse_beacon(info->attrs, ¶ms);
3278 err = rdev_change_beacon(rdev, dev, ¶ms);
3284 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3286 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3287 struct net_device *dev = info->user_ptr[1];
3289 return cfg80211_stop_ap(rdev, dev);
3292 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3293 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3294 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3295 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3296 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3297 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3298 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3301 static int parse_station_flags(struct genl_info *info,
3302 enum nl80211_iftype iftype,
3303 struct station_parameters *params)
3305 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3310 * Try parsing the new attribute first so userspace
3311 * can specify both for older kernels.
3313 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3315 struct nl80211_sta_flag_update *sta_flags;
3317 sta_flags = nla_data(nla);
3318 params->sta_flags_mask = sta_flags->mask;
3319 params->sta_flags_set = sta_flags->set;
3320 params->sta_flags_set &= params->sta_flags_mask;
3321 if ((params->sta_flags_mask |
3322 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3327 /* if present, parse the old attribute */
3329 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3333 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3334 nla, sta_flags_policy))
3338 * Only allow certain flags for interface types so that
3339 * other attributes are silently ignored. Remember that
3340 * this is backward compatibility code with old userspace
3341 * and shouldn't be hit in other cases anyway.
3344 case NL80211_IFTYPE_AP:
3345 case NL80211_IFTYPE_AP_VLAN:
3346 case NL80211_IFTYPE_P2P_GO:
3347 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3348 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3349 BIT(NL80211_STA_FLAG_WME) |
3350 BIT(NL80211_STA_FLAG_MFP);
3352 case NL80211_IFTYPE_P2P_CLIENT:
3353 case NL80211_IFTYPE_STATION:
3354 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3355 BIT(NL80211_STA_FLAG_TDLS_PEER);
3357 case NL80211_IFTYPE_MESH_POINT:
3358 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3359 BIT(NL80211_STA_FLAG_MFP) |
3360 BIT(NL80211_STA_FLAG_AUTHORIZED);
3365 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3367 params->sta_flags_set |= (1<<flag);
3369 /* no longer support new API additions in old API */
3370 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3378 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3381 struct nlattr *rate;
3385 rate = nla_nest_start(msg, attr);
3389 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3390 bitrate = cfg80211_calculate_bitrate(info);
3391 /* report 16-bit bitrate only if we can */
3392 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3394 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3396 if (bitrate_compat > 0 &&
3397 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3400 if (info->flags & RATE_INFO_FLAGS_MCS) {
3401 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3403 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3404 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3406 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3407 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3409 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3410 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3412 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3414 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3415 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3417 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3418 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3420 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3421 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3423 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3424 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3426 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3427 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3431 nla_nest_end(msg, rate);
3435 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3444 attr = nla_nest_start(msg, id);
3448 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3449 if (!(mask & BIT(i)))
3452 if (nla_put_u8(msg, i, signal[i]))
3456 nla_nest_end(msg, attr);
3461 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3463 struct cfg80211_registered_device *rdev,
3464 struct net_device *dev,
3465 const u8 *mac_addr, struct station_info *sinfo)
3468 struct nlattr *sinfoattr, *bss_param;
3470 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3474 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3475 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3476 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3477 goto nla_put_failure;
3479 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3481 goto nla_put_failure;
3482 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3483 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3484 sinfo->connected_time))
3485 goto nla_put_failure;
3486 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3487 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3488 sinfo->inactive_time))
3489 goto nla_put_failure;
3490 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3491 STATION_INFO_RX_BYTES64)) &&
3492 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3493 (u32)sinfo->rx_bytes))
3494 goto nla_put_failure;
3495 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3496 STATION_INFO_TX_BYTES64)) &&
3497 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3498 (u32)sinfo->tx_bytes))
3499 goto nla_put_failure;
3500 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3501 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3503 goto nla_put_failure;
3504 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3505 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3507 goto nla_put_failure;
3508 if ((sinfo->filled & STATION_INFO_LLID) &&
3509 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3510 goto nla_put_failure;
3511 if ((sinfo->filled & STATION_INFO_PLID) &&
3512 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3513 goto nla_put_failure;
3514 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3515 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3516 sinfo->plink_state))
3517 goto nla_put_failure;
3518 switch (rdev->wiphy.signal_type) {
3519 case CFG80211_SIGNAL_TYPE_MBM:
3520 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3521 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3523 goto nla_put_failure;
3524 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3525 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3527 goto nla_put_failure;
3532 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3533 if (!nl80211_put_signal(msg, sinfo->chains,
3534 sinfo->chain_signal,
3535 NL80211_STA_INFO_CHAIN_SIGNAL))
3536 goto nla_put_failure;
3538 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3539 if (!nl80211_put_signal(msg, sinfo->chains,
3540 sinfo->chain_signal_avg,
3541 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3542 goto nla_put_failure;
3544 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3545 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3546 NL80211_STA_INFO_TX_BITRATE))
3547 goto nla_put_failure;
3549 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3550 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3551 NL80211_STA_INFO_RX_BITRATE))
3552 goto nla_put_failure;
3554 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3555 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3557 goto nla_put_failure;
3558 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3559 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3561 goto nla_put_failure;
3562 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3563 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3565 goto nla_put_failure;
3566 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3567 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3569 goto nla_put_failure;
3570 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3571 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3572 sinfo->beacon_loss_count))
3573 goto nla_put_failure;
3574 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3575 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3577 goto nla_put_failure;
3578 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3579 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3581 goto nla_put_failure;
3582 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3583 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3585 goto nla_put_failure;
3586 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3587 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3589 goto nla_put_failure;
3591 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3592 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3593 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3594 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3595 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3596 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3597 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3598 sinfo->bss_param.dtim_period) ||
3599 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3600 sinfo->bss_param.beacon_interval))
3601 goto nla_put_failure;
3603 nla_nest_end(msg, bss_param);
3605 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3606 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3607 sizeof(struct nl80211_sta_flag_update),
3609 goto nla_put_failure;
3610 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3611 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3613 goto nla_put_failure;
3614 nla_nest_end(msg, sinfoattr);
3616 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3617 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3618 sinfo->assoc_req_ies))
3619 goto nla_put_failure;
3621 return genlmsg_end(msg, hdr);
3624 genlmsg_cancel(msg, hdr);
3628 static int nl80211_dump_station(struct sk_buff *skb,
3629 struct netlink_callback *cb)
3631 struct station_info sinfo;
3632 struct cfg80211_registered_device *dev;
3633 struct wireless_dev *wdev;
3634 u8 mac_addr[ETH_ALEN];
3635 int sta_idx = cb->args[2];
3638 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
3642 if (!wdev->netdev) {
3647 if (!dev->ops->dump_station) {
3653 memset(&sinfo, 0, sizeof(sinfo));
3654 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
3661 if (nl80211_send_station(skb,
3662 NETLINK_CB(cb->skb).portid,
3663 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3664 dev, wdev->netdev, mac_addr,
3673 cb->args[2] = sta_idx;
3676 nl80211_finish_wdev_dump(dev);
3681 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3684 struct net_device *dev = info->user_ptr[1];
3685 struct station_info sinfo;
3686 struct sk_buff *msg;
3687 u8 *mac_addr = NULL;
3690 memset(&sinfo, 0, sizeof(sinfo));
3692 if (!info->attrs[NL80211_ATTR_MAC])
3695 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3697 if (!rdev->ops->get_station)
3700 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3704 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3708 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3709 rdev, dev, mac_addr, &sinfo) < 0) {
3714 return genlmsg_reply(msg, info);
3717 int cfg80211_check_station_change(struct wiphy *wiphy,
3718 struct station_parameters *params,
3719 enum cfg80211_station_type statype)
3721 if (params->listen_interval != -1)
3726 /* When you run into this, adjust the code below for the new flag */
3727 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3730 case CFG80211_STA_MESH_PEER_KERNEL:
3731 case CFG80211_STA_MESH_PEER_USER:
3733 * No ignoring the TDLS flag here -- the userspace mesh
3734 * code doesn't have the bug of including TDLS in the
3737 if (params->sta_flags_mask &
3738 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3739 BIT(NL80211_STA_FLAG_MFP) |
3740 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3743 case CFG80211_STA_TDLS_PEER_SETUP:
3744 case CFG80211_STA_TDLS_PEER_ACTIVE:
3745 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3747 /* ignore since it can't change */
3748 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3751 /* disallow mesh-specific things */
3752 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3754 if (params->local_pm)
3756 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3760 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3761 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3762 /* TDLS can't be set, ... */
3763 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3766 * ... but don't bother the driver with it. This works around
3767 * a hostapd/wpa_supplicant issue -- it always includes the
3768 * TLDS_PEER flag in the mask even for AP mode.
3770 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3773 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3774 /* reject other things that can't change */
3775 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3777 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3779 if (params->supported_rates)
3781 if (params->ext_capab || params->ht_capa || params->vht_capa)
3785 if (statype != CFG80211_STA_AP_CLIENT) {
3791 case CFG80211_STA_AP_MLME_CLIENT:
3792 /* Use this only for authorizing/unauthorizing a station */
3793 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3796 case CFG80211_STA_AP_CLIENT:
3797 /* accept only the listed bits */
3798 if (params->sta_flags_mask &
3799 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3800 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3801 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3802 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3803 BIT(NL80211_STA_FLAG_WME) |
3804 BIT(NL80211_STA_FLAG_MFP)))
3807 /* but authenticated/associated only if driver handles it */
3808 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3809 params->sta_flags_mask &
3810 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3811 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3814 case CFG80211_STA_IBSS:
3815 case CFG80211_STA_AP_STA:
3816 /* reject any changes other than AUTHORIZED */
3817 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3820 case CFG80211_STA_TDLS_PEER_SETUP:
3821 /* reject any changes other than AUTHORIZED or WME */
3822 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3823 BIT(NL80211_STA_FLAG_WME)))
3825 /* force (at least) rates when authorizing */
3826 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3827 !params->supported_rates)
3830 case CFG80211_STA_TDLS_PEER_ACTIVE:
3831 /* reject any changes */
3833 case CFG80211_STA_MESH_PEER_KERNEL:
3834 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3837 case CFG80211_STA_MESH_PEER_USER:
3838 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3845 EXPORT_SYMBOL(cfg80211_check_station_change);
3848 * Get vlan interface making sure it is running and on the right wiphy.
3850 static struct net_device *get_vlan(struct genl_info *info,
3851 struct cfg80211_registered_device *rdev)
3853 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3854 struct net_device *v;
3860 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3862 return ERR_PTR(-ENODEV);
3864 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3869 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3870 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3871 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3876 if (!netif_running(v)) {
3884 return ERR_PTR(ret);
3887 static struct nla_policy
3888 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3889 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3890 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3893 static int nl80211_parse_sta_wme(struct genl_info *info,
3894 struct station_parameters *params)
3896 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3900 /* parse WME attributes if present */
3901 if (!info->attrs[NL80211_ATTR_STA_WME])
3904 nla = info->attrs[NL80211_ATTR_STA_WME];
3905 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3906 nl80211_sta_wme_policy);
3910 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3911 params->uapsd_queues = nla_get_u8(
3912 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3913 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3916 if (tb[NL80211_STA_WME_MAX_SP])
3917 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3919 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3922 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3927 static int nl80211_parse_sta_channel_info(struct genl_info *info,
3928 struct station_parameters *params)
3930 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3931 params->supported_channels =
3932 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3933 params->supported_channels_len =
3934 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3936 * Need to include at least one (first channel, number of
3937 * channels) tuple for each subband, and must have proper
3938 * tuples for the rest of the data as well.
3940 if (params->supported_channels_len < 2)
3942 if (params->supported_channels_len % 2)
3946 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3947 params->supported_oper_classes =
3948 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3949 params->supported_oper_classes_len =
3950 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3952 * The value of the Length field of the Supported Operating
3953 * Classes element is between 2 and 253.
3955 if (params->supported_oper_classes_len < 2 ||
3956 params->supported_oper_classes_len > 253)
3962 static int nl80211_set_station_tdls(struct genl_info *info,
3963 struct station_parameters *params)
3966 /* Dummy STA entry gets updated once the peer capabilities are known */
3967 if (info->attrs[NL80211_ATTR_PEER_AID])
3968 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3969 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3971 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3972 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3974 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3976 err = nl80211_parse_sta_channel_info(info, params);
3980 return nl80211_parse_sta_wme(info, params);
3983 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3986 struct net_device *dev = info->user_ptr[1];
3987 struct station_parameters params;
3991 memset(¶ms, 0, sizeof(params));
3993 params.listen_interval = -1;
3995 if (!rdev->ops->change_station)
3998 if (info->attrs[NL80211_ATTR_STA_AID])
4001 if (!info->attrs[NL80211_ATTR_MAC])
4004 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4006 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4007 params.supported_rates =
4008 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4009 params.supported_rates_len =
4010 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4013 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4015 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4016 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4019 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4021 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4022 params.ext_capab_len =
4023 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4026 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4029 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4032 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4033 params.plink_action =
4034 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4035 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4039 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4040 params.plink_state =
4041 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4042 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4044 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4047 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4048 enum nl80211_mesh_power_mode pm = nla_get_u32(
4049 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4051 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4052 pm > NL80211_MESH_POWER_MAX)
4055 params.local_pm = pm;
4058 /* Include parameters for TDLS peer (will check later) */
4059 err = nl80211_set_station_tdls(info, ¶ms);
4063 params.vlan = get_vlan(info, rdev);
4064 if (IS_ERR(params.vlan))
4065 return PTR_ERR(params.vlan);
4067 switch (dev->ieee80211_ptr->iftype) {
4068 case NL80211_IFTYPE_AP:
4069 case NL80211_IFTYPE_AP_VLAN:
4070 case NL80211_IFTYPE_P2P_GO:
4071 case NL80211_IFTYPE_P2P_CLIENT:
4072 case NL80211_IFTYPE_STATION:
4073 case NL80211_IFTYPE_ADHOC:
4074 case NL80211_IFTYPE_MESH_POINT:
4081 /* driver will call cfg80211_check_station_change() */
4082 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4086 dev_put(params.vlan);
4091 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4095 struct net_device *dev = info->user_ptr[1];
4096 struct station_parameters params;
4097 u8 *mac_addr = NULL;
4099 memset(¶ms, 0, sizeof(params));
4101 if (!rdev->ops->add_station)
4104 if (!info->attrs[NL80211_ATTR_MAC])
4107 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4110 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4113 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4114 !info->attrs[NL80211_ATTR_PEER_AID])
4117 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4118 params.supported_rates =
4119 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4120 params.supported_rates_len =
4121 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4122 params.listen_interval =
4123 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4125 if (info->attrs[NL80211_ATTR_PEER_AID])
4126 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4128 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4129 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4132 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4134 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4135 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4138 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4140 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4141 params.ext_capab_len =
4142 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4145 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4147 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4149 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4151 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4153 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4154 params.opmode_notif_used = true;
4155 params.opmode_notif =
4156 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4159 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4160 params.plink_action =
4161 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4162 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4166 err = nl80211_parse_sta_channel_info(info, ¶ms);
4170 err = nl80211_parse_sta_wme(info, ¶ms);
4174 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4177 /* When you run into this, adjust the code below for the new flag */
4178 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4180 switch (dev->ieee80211_ptr->iftype) {
4181 case NL80211_IFTYPE_AP:
4182 case NL80211_IFTYPE_AP_VLAN:
4183 case NL80211_IFTYPE_P2P_GO:
4184 /* ignore WME attributes if iface/sta is not capable */
4185 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4186 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4187 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4189 /* TDLS peers cannot be added */
4190 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4191 info->attrs[NL80211_ATTR_PEER_AID])
4193 /* but don't bother the driver with it */
4194 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4196 /* allow authenticated/associated only if driver handles it */
4197 if (!(rdev->wiphy.features &
4198 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4199 params.sta_flags_mask &
4200 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4201 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4204 /* must be last in here for error handling */
4205 params.vlan = get_vlan(info, rdev);
4206 if (IS_ERR(params.vlan))
4207 return PTR_ERR(params.vlan);
4209 case NL80211_IFTYPE_MESH_POINT:
4210 /* ignore uAPSD data */
4211 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4213 /* associated is disallowed */
4214 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4216 /* TDLS peers cannot be added */
4217 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4218 info->attrs[NL80211_ATTR_PEER_AID])
4221 case NL80211_IFTYPE_STATION:
4222 case NL80211_IFTYPE_P2P_CLIENT:
4223 /* ignore uAPSD data */
4224 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4226 /* these are disallowed */
4227 if (params.sta_flags_mask &
4228 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4229 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4231 /* Only TDLS peers can be added */
4232 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4234 /* Can only add if TDLS ... */
4235 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4237 /* ... with external setup is supported */
4238 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4241 * Older wpa_supplicant versions always mark the TDLS peer
4242 * as authorized, but it shouldn't yet be.
4244 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4250 /* be aware of params.vlan when changing code here */
4252 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4255 dev_put(params.vlan);
4259 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4262 struct net_device *dev = info->user_ptr[1];
4263 u8 *mac_addr = NULL;
4265 if (info->attrs[NL80211_ATTR_MAC])
4266 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4268 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4270 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4271 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4274 if (!rdev->ops->del_station)
4277 return rdev_del_station(rdev, dev, mac_addr);
4280 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4281 int flags, struct net_device *dev,
4282 u8 *dst, u8 *next_hop,
4283 struct mpath_info *pinfo)
4286 struct nlattr *pinfoattr;
4288 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4292 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4293 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4294 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4295 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4296 goto nla_put_failure;
4298 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4300 goto nla_put_failure;
4301 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4302 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4304 goto nla_put_failure;
4305 if (((pinfo->filled & MPATH_INFO_SN) &&
4306 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4307 ((pinfo->filled & MPATH_INFO_METRIC) &&
4308 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4310 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4311 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4313 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4314 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4316 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4317 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4318 pinfo->discovery_timeout)) ||
4319 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4320 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4321 pinfo->discovery_retries)))
4322 goto nla_put_failure;
4324 nla_nest_end(msg, pinfoattr);
4326 return genlmsg_end(msg, hdr);
4329 genlmsg_cancel(msg, hdr);
4333 static int nl80211_dump_mpath(struct sk_buff *skb,
4334 struct netlink_callback *cb)
4336 struct mpath_info pinfo;
4337 struct cfg80211_registered_device *dev;
4338 struct wireless_dev *wdev;
4340 u8 next_hop[ETH_ALEN];
4341 int path_idx = cb->args[2];
4344 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
4348 if (!dev->ops->dump_mpath) {
4353 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4359 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4366 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4367 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4368 wdev->netdev, dst, next_hop,
4377 cb->args[2] = path_idx;
4380 nl80211_finish_wdev_dump(dev);
4384 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4388 struct net_device *dev = info->user_ptr[1];
4389 struct mpath_info pinfo;
4390 struct sk_buff *msg;
4392 u8 next_hop[ETH_ALEN];
4394 memset(&pinfo, 0, sizeof(pinfo));
4396 if (!info->attrs[NL80211_ATTR_MAC])
4399 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4401 if (!rdev->ops->get_mpath)
4404 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4407 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4411 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4415 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4416 dev, dst, next_hop, &pinfo) < 0) {
4421 return genlmsg_reply(msg, info);
4424 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4427 struct net_device *dev = info->user_ptr[1];
4429 u8 *next_hop = NULL;
4431 if (!info->attrs[NL80211_ATTR_MAC])
4434 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4437 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4438 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4440 if (!rdev->ops->change_mpath)
4443 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4446 return rdev_change_mpath(rdev, dev, dst, next_hop);
4449 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4452 struct net_device *dev = info->user_ptr[1];
4454 u8 *next_hop = NULL;
4456 if (!info->attrs[NL80211_ATTR_MAC])
4459 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4462 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4463 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4465 if (!rdev->ops->add_mpath)
4468 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4471 return rdev_add_mpath(rdev, dev, dst, next_hop);
4474 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4477 struct net_device *dev = info->user_ptr[1];
4480 if (info->attrs[NL80211_ATTR_MAC])
4481 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4483 if (!rdev->ops->del_mpath)
4486 return rdev_del_mpath(rdev, dev, dst);
4489 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4492 struct net_device *dev = info->user_ptr[1];
4493 struct wireless_dev *wdev = dev->ieee80211_ptr;
4494 struct bss_parameters params;
4497 memset(¶ms, 0, sizeof(params));
4498 /* default to not changing parameters */
4499 params.use_cts_prot = -1;
4500 params.use_short_preamble = -1;
4501 params.use_short_slot_time = -1;
4502 params.ap_isolate = -1;
4503 params.ht_opmode = -1;
4504 params.p2p_ctwindow = -1;
4505 params.p2p_opp_ps = -1;
4507 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4508 params.use_cts_prot =
4509 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4510 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4511 params.use_short_preamble =
4512 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4513 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4514 params.use_short_slot_time =
4515 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4516 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4517 params.basic_rates =
4518 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4519 params.basic_rates_len =
4520 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4522 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4523 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4524 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4526 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4528 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4529 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4531 params.p2p_ctwindow =
4532 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4533 if (params.p2p_ctwindow < 0)
4535 if (params.p2p_ctwindow != 0 &&
4536 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4540 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4543 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4545 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4548 params.p2p_opp_ps = tmp;
4549 if (params.p2p_opp_ps &&
4550 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4554 if (!rdev->ops->change_bss)
4557 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4558 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4562 err = rdev_change_bss(rdev, dev, ¶ms);
4568 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4569 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4570 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4571 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4572 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4573 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4574 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4577 static int parse_reg_rule(struct nlattr *tb[],
4578 struct ieee80211_reg_rule *reg_rule)
4580 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4581 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4583 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4585 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4587 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4589 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4591 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4594 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4596 freq_range->start_freq_khz =
4597 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4598 freq_range->end_freq_khz =
4599 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4600 freq_range->max_bandwidth_khz =
4601 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4603 power_rule->max_eirp =
4604 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4606 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4607 power_rule->max_antenna_gain =
4608 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4613 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4617 enum nl80211_user_reg_hint_type user_reg_hint_type;
4620 * You should only get this when cfg80211 hasn't yet initialized
4621 * completely when built-in to the kernel right between the time
4622 * window between nl80211_init() and regulatory_init(), if that is
4625 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4626 return -EINPROGRESS;
4628 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4631 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4633 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4634 user_reg_hint_type =
4635 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4637 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4639 switch (user_reg_hint_type) {
4640 case NL80211_USER_REG_HINT_USER:
4641 case NL80211_USER_REG_HINT_CELL_BASE:
4647 r = regulatory_hint_user(data, user_reg_hint_type);
4652 static int nl80211_get_mesh_config(struct sk_buff *skb,
4653 struct genl_info *info)
4655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4656 struct net_device *dev = info->user_ptr[1];
4657 struct wireless_dev *wdev = dev->ieee80211_ptr;
4658 struct mesh_config cur_params;
4661 struct nlattr *pinfoattr;
4662 struct sk_buff *msg;
4664 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4667 if (!rdev->ops->get_mesh_config)
4671 /* If not connected, get default parameters */
4672 if (!wdev->mesh_id_len)
4673 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4675 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4681 /* Draw up a netlink message to send back */
4682 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4685 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4686 NL80211_CMD_GET_MESH_CONFIG);
4689 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4691 goto nla_put_failure;
4692 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4693 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4694 cur_params.dot11MeshRetryTimeout) ||
4695 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4696 cur_params.dot11MeshConfirmTimeout) ||
4697 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4698 cur_params.dot11MeshHoldingTimeout) ||
4699 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4700 cur_params.dot11MeshMaxPeerLinks) ||
4701 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4702 cur_params.dot11MeshMaxRetries) ||
4703 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4704 cur_params.dot11MeshTTL) ||
4705 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4706 cur_params.element_ttl) ||
4707 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4708 cur_params.auto_open_plinks) ||
4709 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4710 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4711 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4712 cur_params.dot11MeshHWMPmaxPREQretries) ||
4713 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4714 cur_params.path_refresh_time) ||
4715 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4716 cur_params.min_discovery_timeout) ||
4717 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4718 cur_params.dot11MeshHWMPactivePathTimeout) ||
4719 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4720 cur_params.dot11MeshHWMPpreqMinInterval) ||
4721 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4722 cur_params.dot11MeshHWMPperrMinInterval) ||
4723 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4724 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4725 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4726 cur_params.dot11MeshHWMPRootMode) ||
4727 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4728 cur_params.dot11MeshHWMPRannInterval) ||
4729 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4730 cur_params.dot11MeshGateAnnouncementProtocol) ||
4731 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4732 cur_params.dot11MeshForwarding) ||
4733 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4734 cur_params.rssi_threshold) ||
4735 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4736 cur_params.ht_opmode) ||
4737 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4738 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4739 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4740 cur_params.dot11MeshHWMProotInterval) ||
4741 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4742 cur_params.dot11MeshHWMPconfirmationInterval) ||
4743 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4744 cur_params.power_mode) ||
4745 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4746 cur_params.dot11MeshAwakeWindowDuration) ||
4747 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4748 cur_params.plink_timeout))
4749 goto nla_put_failure;
4750 nla_nest_end(msg, pinfoattr);
4751 genlmsg_end(msg, hdr);
4752 return genlmsg_reply(msg, info);
4755 genlmsg_cancel(msg, hdr);
4761 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4762 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4763 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4764 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4765 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4766 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4767 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4768 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4769 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4770 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4771 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4772 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4773 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4774 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4775 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4776 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4777 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4778 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4779 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4780 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4781 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4782 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4783 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4784 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4785 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4786 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4787 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4788 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4789 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4792 static const struct nla_policy
4793 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4794 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4795 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4796 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4797 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4798 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4799 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4800 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4801 .len = IEEE80211_MAX_DATA_LEN },
4802 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4805 static int nl80211_parse_mesh_config(struct genl_info *info,
4806 struct mesh_config *cfg,
4809 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4812 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4815 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4817 cfg->param = fn(tb[attr]); \
4818 mask |= (1 << (attr - 1)); \
4823 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4825 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4826 info->attrs[NL80211_ATTR_MESH_CONFIG],
4827 nl80211_meshconf_params_policy))
4830 /* This makes sure that there aren't more than 32 mesh config
4831 * parameters (otherwise our bitfield scheme would not work.) */
4832 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4834 /* Fill in the params struct */
4835 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4836 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4838 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4839 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4841 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4842 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4845 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4847 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4848 mask, NL80211_MESHCONF_MAX_RETRIES,
4850 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4851 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4852 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4853 mask, NL80211_MESHCONF_ELEMENT_TTL,
4855 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4856 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4858 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4860 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4862 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4863 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4865 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4866 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4868 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4869 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4871 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4873 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4875 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4877 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4881 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4883 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4884 dot11MeshHWMPnetDiameterTraversalTime,
4886 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4888 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4889 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4891 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4892 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4894 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4895 dot11MeshGateAnnouncementProtocol, 0, 1,
4896 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4898 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4899 mask, NL80211_MESHCONF_FORWARDING,
4901 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
4902 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4904 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4905 mask, NL80211_MESHCONF_HT_OPMODE,
4907 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4909 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4912 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4914 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4915 dot11MeshHWMPconfirmationInterval,
4917 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4919 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4920 NL80211_MESH_POWER_ACTIVE,
4921 NL80211_MESH_POWER_MAX,
4922 mask, NL80211_MESHCONF_POWER_MODE,
4924 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4926 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4927 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4928 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4935 #undef FILL_IN_MESH_PARAM_IF_SET
4938 static int nl80211_parse_mesh_setup(struct genl_info *info,
4939 struct mesh_setup *setup)
4941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4942 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4944 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4946 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4947 info->attrs[NL80211_ATTR_MESH_SETUP],
4948 nl80211_mesh_setup_params_policy))
4951 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4952 setup->sync_method =
4953 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4954 IEEE80211_SYNC_METHOD_VENDOR :
4955 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4957 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4958 setup->path_sel_proto =
4959 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4960 IEEE80211_PATH_PROTOCOL_VENDOR :
4961 IEEE80211_PATH_PROTOCOL_HWMP;
4963 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4964 setup->path_metric =
4965 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4966 IEEE80211_PATH_METRIC_VENDOR :
4967 IEEE80211_PATH_METRIC_AIRTIME;
4970 if (tb[NL80211_MESH_SETUP_IE]) {
4971 struct nlattr *ieattr =
4972 tb[NL80211_MESH_SETUP_IE];
4973 if (!is_valid_ie_attr(ieattr))
4975 setup->ie = nla_data(ieattr);
4976 setup->ie_len = nla_len(ieattr);
4978 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4979 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4981 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
4982 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4983 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4984 if (setup->is_secure)
4985 setup->user_mpm = true;
4987 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4988 if (!setup->user_mpm)
4991 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4997 static int nl80211_update_mesh_config(struct sk_buff *skb,
4998 struct genl_info *info)
5000 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5001 struct net_device *dev = info->user_ptr[1];
5002 struct wireless_dev *wdev = dev->ieee80211_ptr;
5003 struct mesh_config cfg;
5007 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5010 if (!rdev->ops->update_mesh_config)
5013 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5018 if (!wdev->mesh_id_len)
5022 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5029 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5031 const struct ieee80211_regdomain *regdom;
5032 struct sk_buff *msg;
5034 struct nlattr *nl_reg_rules;
5037 if (!cfg80211_regdomain)
5040 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5044 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5045 NL80211_CMD_GET_REG);
5049 if (reg_last_request_cell_base() &&
5050 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5051 NL80211_USER_REG_HINT_CELL_BASE))
5052 goto nla_put_failure;
5055 regdom = rcu_dereference(cfg80211_regdomain);
5057 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5058 (regdom->dfs_region &&
5059 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5060 goto nla_put_failure_rcu;
5062 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5064 goto nla_put_failure_rcu;
5066 for (i = 0; i < regdom->n_reg_rules; i++) {
5067 struct nlattr *nl_reg_rule;
5068 const struct ieee80211_reg_rule *reg_rule;
5069 const struct ieee80211_freq_range *freq_range;
5070 const struct ieee80211_power_rule *power_rule;
5072 reg_rule = ®dom->reg_rules[i];
5073 freq_range = ®_rule->freq_range;
5074 power_rule = ®_rule->power_rule;
5076 nl_reg_rule = nla_nest_start(msg, i);
5078 goto nla_put_failure_rcu;
5080 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5082 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5083 freq_range->start_freq_khz) ||
5084 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5085 freq_range->end_freq_khz) ||
5086 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5087 freq_range->max_bandwidth_khz) ||
5088 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5089 power_rule->max_antenna_gain) ||
5090 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5091 power_rule->max_eirp))
5092 goto nla_put_failure_rcu;
5094 nla_nest_end(msg, nl_reg_rule);
5098 nla_nest_end(msg, nl_reg_rules);
5100 genlmsg_end(msg, hdr);
5101 return genlmsg_reply(msg, info);
5103 nla_put_failure_rcu:
5106 genlmsg_cancel(msg, hdr);
5112 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5114 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5115 struct nlattr *nl_reg_rule;
5116 char *alpha2 = NULL;
5117 int rem_reg_rules = 0, r = 0;
5118 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5119 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5120 struct ieee80211_regdomain *rd = NULL;
5122 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5125 if (!info->attrs[NL80211_ATTR_REG_RULES])
5128 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5130 if (info->attrs[NL80211_ATTR_DFS_REGION])
5131 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5133 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5136 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5140 if (!reg_is_valid_request(alpha2))
5143 size_of_regd = sizeof(struct ieee80211_regdomain) +
5144 num_rules * sizeof(struct ieee80211_reg_rule);
5146 rd = kzalloc(size_of_regd, GFP_KERNEL);
5150 rd->n_reg_rules = num_rules;
5151 rd->alpha2[0] = alpha2[0];
5152 rd->alpha2[1] = alpha2[1];
5155 * Disable DFS master mode if the DFS region was
5156 * not supported or known on this kernel.
5158 if (reg_supported_dfs_region(dfs_region))
5159 rd->dfs_region = dfs_region;
5161 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5163 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5164 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5166 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5172 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5179 /* set_regdom took ownership */
5187 static int validate_scan_freqs(struct nlattr *freqs)
5189 struct nlattr *attr1, *attr2;
5190 int n_channels = 0, tmp1, tmp2;
5192 nla_for_each_nested(attr1, freqs, tmp1) {
5195 * Some hardware has a limited channel list for
5196 * scanning, and it is pretty much nonsensical
5197 * to scan for a channel twice, so disallow that
5198 * and don't require drivers to check that the
5199 * channel list they get isn't longer than what
5200 * they can scan, as long as they can scan all
5201 * the channels they registered at once.
5203 nla_for_each_nested(attr2, freqs, tmp2)
5204 if (attr1 != attr2 &&
5205 nla_get_u32(attr1) == nla_get_u32(attr2))
5212 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5215 struct wireless_dev *wdev = info->user_ptr[1];
5216 struct cfg80211_scan_request *request;
5217 struct nlattr *attr;
5218 struct wiphy *wiphy;
5219 int err, tmp, n_ssids = 0, n_channels, i;
5222 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5225 wiphy = &rdev->wiphy;
5227 if (!rdev->ops->scan)
5230 if (rdev->scan_req) {
5235 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5236 n_channels = validate_scan_freqs(
5237 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5243 enum ieee80211_band band;
5246 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5247 if (wiphy->bands[band])
5248 n_channels += wiphy->bands[band]->n_channels;
5251 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5252 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5255 if (n_ssids > wiphy->max_scan_ssids) {
5260 if (info->attrs[NL80211_ATTR_IE])
5261 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5265 if (ie_len > wiphy->max_scan_ie_len) {
5270 request = kzalloc(sizeof(*request)
5271 + sizeof(*request->ssids) * n_ssids
5272 + sizeof(*request->channels) * n_channels
5273 + ie_len, GFP_KERNEL);
5280 request->ssids = (void *)&request->channels[n_channels];
5281 request->n_ssids = n_ssids;
5284 request->ie = (void *)(request->ssids + n_ssids);
5286 request->ie = (void *)(request->channels + n_channels);
5290 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5291 /* user specified, bail out if channel not found */
5292 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5293 struct ieee80211_channel *chan;
5295 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5302 /* ignore disabled channels */
5303 if (chan->flags & IEEE80211_CHAN_DISABLED)
5306 request->channels[i] = chan;
5310 enum ieee80211_band band;
5313 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5315 if (!wiphy->bands[band])
5317 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5318 struct ieee80211_channel *chan;
5320 chan = &wiphy->bands[band]->channels[j];
5322 if (chan->flags & IEEE80211_CHAN_DISABLED)
5325 request->channels[i] = chan;
5336 request->n_channels = i;
5339 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5340 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5341 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5345 request->ssids[i].ssid_len = nla_len(attr);
5346 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5351 if (info->attrs[NL80211_ATTR_IE]) {
5352 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5353 memcpy((void *)request->ie,
5354 nla_data(info->attrs[NL80211_ATTR_IE]),
5358 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5359 if (wiphy->bands[i])
5361 (1 << wiphy->bands[i]->n_bitrates) - 1;
5363 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5364 nla_for_each_nested(attr,
5365 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5367 enum ieee80211_band band = nla_type(attr);
5369 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5373 err = ieee80211_get_ratemask(wiphy->bands[band],
5376 &request->rates[band]);
5382 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5383 request->flags = nla_get_u32(
5384 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5385 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5386 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5393 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5395 request->wdev = wdev;
5396 request->wiphy = &rdev->wiphy;
5397 request->scan_start = jiffies;
5399 rdev->scan_req = request;
5400 err = rdev_scan(rdev, request);
5403 nl80211_send_scan_start(rdev, wdev);
5405 dev_hold(wdev->netdev);
5408 rdev->scan_req = NULL;
5416 static int nl80211_start_sched_scan(struct sk_buff *skb,
5417 struct genl_info *info)
5419 struct cfg80211_sched_scan_request *request;
5420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5421 struct net_device *dev = info->user_ptr[1];
5422 struct nlattr *attr;
5423 struct wiphy *wiphy;
5424 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5426 enum ieee80211_band band;
5428 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5430 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5431 !rdev->ops->sched_scan_start)
5434 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5437 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5440 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5444 wiphy = &rdev->wiphy;
5446 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5447 n_channels = validate_scan_freqs(
5448 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5454 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5455 if (wiphy->bands[band])
5456 n_channels += wiphy->bands[band]->n_channels;
5459 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5460 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5464 if (n_ssids > wiphy->max_sched_scan_ssids)
5467 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5468 nla_for_each_nested(attr,
5469 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5473 if (n_match_sets > wiphy->max_match_sets)
5476 if (info->attrs[NL80211_ATTR_IE])
5477 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5481 if (ie_len > wiphy->max_sched_scan_ie_len)
5484 if (rdev->sched_scan_req) {
5489 request = kzalloc(sizeof(*request)
5490 + sizeof(*request->ssids) * n_ssids
5491 + sizeof(*request->match_sets) * n_match_sets
5492 + sizeof(*request->channels) * n_channels
5493 + ie_len, GFP_KERNEL);
5500 request->ssids = (void *)&request->channels[n_channels];
5501 request->n_ssids = n_ssids;
5504 request->ie = (void *)(request->ssids + n_ssids);
5506 request->ie = (void *)(request->channels + n_channels);
5511 request->match_sets = (void *)(request->ie + ie_len);
5512 else if (request->ssids)
5513 request->match_sets =
5514 (void *)(request->ssids + n_ssids);
5516 request->match_sets =
5517 (void *)(request->channels + n_channels);
5519 request->n_match_sets = n_match_sets;
5522 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5523 /* user specified, bail out if channel not found */
5524 nla_for_each_nested(attr,
5525 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5527 struct ieee80211_channel *chan;
5529 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5536 /* ignore disabled channels */
5537 if (chan->flags & IEEE80211_CHAN_DISABLED)
5540 request->channels[i] = chan;
5545 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5547 if (!wiphy->bands[band])
5549 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5550 struct ieee80211_channel *chan;
5552 chan = &wiphy->bands[band]->channels[j];
5554 if (chan->flags & IEEE80211_CHAN_DISABLED)
5557 request->channels[i] = chan;
5568 request->n_channels = i;
5571 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5572 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5574 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5578 request->ssids[i].ssid_len = nla_len(attr);
5579 memcpy(request->ssids[i].ssid, nla_data(attr),
5586 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5587 nla_for_each_nested(attr,
5588 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5590 struct nlattr *ssid, *rssi;
5592 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5593 nla_data(attr), nla_len(attr),
5594 nl80211_match_policy);
5595 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5597 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5601 memcpy(request->match_sets[i].ssid.ssid,
5602 nla_data(ssid), nla_len(ssid));
5603 request->match_sets[i].ssid.ssid_len =
5606 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5608 request->rssi_thold = nla_get_u32(rssi);
5610 request->rssi_thold =
5611 NL80211_SCAN_RSSI_THOLD_OFF;
5616 if (info->attrs[NL80211_ATTR_IE]) {
5617 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5618 memcpy((void *)request->ie,
5619 nla_data(info->attrs[NL80211_ATTR_IE]),
5623 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5624 request->flags = nla_get_u32(
5625 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5626 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5627 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5634 request->wiphy = &rdev->wiphy;
5635 request->interval = interval;
5636 request->scan_start = jiffies;
5638 err = rdev_sched_scan_start(rdev, dev, request);
5640 rdev->sched_scan_req = request;
5641 nl80211_send_sched_scan(rdev, dev,
5642 NL80211_CMD_START_SCHED_SCAN);
5652 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5653 struct genl_info *info)
5655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5657 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5658 !rdev->ops->sched_scan_stop)
5661 return __cfg80211_stop_sched_scan(rdev, false);
5664 static int nl80211_start_radar_detection(struct sk_buff *skb,
5665 struct genl_info *info)
5667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5668 struct net_device *dev = info->user_ptr[1];
5669 struct wireless_dev *wdev = dev->ieee80211_ptr;
5670 struct cfg80211_chan_def chandef;
5671 enum nl80211_dfs_regions dfs_region;
5674 dfs_region = reg_get_dfs_region(wdev->wiphy);
5675 if (dfs_region == NL80211_DFS_UNSET)
5678 err = nl80211_parse_chandef(rdev, info, &chandef);
5682 if (netif_carrier_ok(dev))
5685 if (wdev->cac_started)
5688 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5695 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
5698 if (!rdev->ops->start_radar_detection)
5701 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5702 chandef.chan, CHAN_MODE_SHARED,
5703 BIT(chandef.width));
5707 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5709 wdev->channel = chandef.chan;
5710 wdev->cac_started = true;
5711 wdev->cac_start_time = jiffies;
5716 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5718 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5719 struct net_device *dev = info->user_ptr[1];
5720 struct wireless_dev *wdev = dev->ieee80211_ptr;
5721 struct cfg80211_csa_settings params;
5722 /* csa_attrs is defined static to avoid waste of stack size - this
5723 * function is called under RTNL lock, so this should not be a problem.
5725 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5726 u8 radar_detect_width = 0;
5728 bool need_new_beacon = false;
5730 if (!rdev->ops->channel_switch ||
5731 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5734 switch (dev->ieee80211_ptr->iftype) {
5735 case NL80211_IFTYPE_AP:
5736 case NL80211_IFTYPE_P2P_GO:
5737 need_new_beacon = true;
5739 /* useless if AP is not running */
5740 if (!wdev->beacon_interval)
5743 case NL80211_IFTYPE_ADHOC:
5744 case NL80211_IFTYPE_MESH_POINT:
5750 memset(¶ms, 0, sizeof(params));
5752 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5753 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5756 /* only important for AP, IBSS and mesh create IEs internally */
5757 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
5760 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5762 if (!need_new_beacon)
5765 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
5769 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5770 info->attrs[NL80211_ATTR_CSA_IES],
5775 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
5779 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5782 params.counter_offset_beacon =
5783 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5784 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5787 /* sanity check - counters should be the same */
5788 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5792 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5793 params.counter_offset_presp =
5794 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5795 if (params.counter_offset_presp >=
5796 params.beacon_csa.probe_resp_len)
5799 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5805 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
5809 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
5812 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
5813 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
5814 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
5815 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5820 radar_detect_width = BIT(params.chandef.width);
5821 params.radar_required = true;
5825 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5826 params.chandef.chan,
5828 radar_detect_width);
5832 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5833 params.block_tx = true;
5836 err = rdev_channel_switch(rdev, dev, ¶ms);
5842 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5844 struct cfg80211_registered_device *rdev,
5845 struct wireless_dev *wdev,
5846 struct cfg80211_internal_bss *intbss)
5848 struct cfg80211_bss *res = &intbss->pub;
5849 const struct cfg80211_bss_ies *ies;
5854 ASSERT_WDEV_LOCK(wdev);
5856 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5857 NL80211_CMD_NEW_SCAN_RESULTS);
5861 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5863 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5864 goto nla_put_failure;
5866 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5867 goto nla_put_failure;
5868 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5869 goto nla_put_failure;
5871 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5873 goto nla_put_failure;
5874 if ((!is_zero_ether_addr(res->bssid) &&
5875 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5876 goto nla_put_failure;
5879 ies = rcu_dereference(res->ies);
5881 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5882 goto fail_unlock_rcu;
5884 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5885 ies->len, ies->data))
5886 goto fail_unlock_rcu;
5888 ies = rcu_dereference(res->beacon_ies);
5890 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5891 goto fail_unlock_rcu;
5892 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5893 ies->len, ies->data))
5894 goto fail_unlock_rcu;
5898 if (res->beacon_interval &&
5899 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5900 goto nla_put_failure;
5901 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5902 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5903 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
5904 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5905 jiffies_to_msecs(jiffies - intbss->ts)))
5906 goto nla_put_failure;
5908 switch (rdev->wiphy.signal_type) {
5909 case CFG80211_SIGNAL_TYPE_MBM:
5910 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5911 goto nla_put_failure;
5913 case CFG80211_SIGNAL_TYPE_UNSPEC:
5914 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5915 goto nla_put_failure;
5921 switch (wdev->iftype) {
5922 case NL80211_IFTYPE_P2P_CLIENT:
5923 case NL80211_IFTYPE_STATION:
5924 if (intbss == wdev->current_bss &&
5925 nla_put_u32(msg, NL80211_BSS_STATUS,
5926 NL80211_BSS_STATUS_ASSOCIATED))
5927 goto nla_put_failure;
5929 case NL80211_IFTYPE_ADHOC:
5930 if (intbss == wdev->current_bss &&
5931 nla_put_u32(msg, NL80211_BSS_STATUS,
5932 NL80211_BSS_STATUS_IBSS_JOINED))
5933 goto nla_put_failure;
5939 nla_nest_end(msg, bss);
5941 return genlmsg_end(msg, hdr);
5946 genlmsg_cancel(msg, hdr);
5950 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
5952 struct cfg80211_registered_device *rdev;
5953 struct cfg80211_internal_bss *scan;
5954 struct wireless_dev *wdev;
5955 int start = cb->args[2], idx = 0;
5958 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5963 spin_lock_bh(&rdev->bss_lock);
5964 cfg80211_bss_expire(rdev);
5966 cb->seq = rdev->bss_generation;
5968 list_for_each_entry(scan, &rdev->bss_list, list) {
5971 if (nl80211_send_bss(skb, cb,
5972 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5973 rdev, wdev, scan) < 0) {
5979 spin_unlock_bh(&rdev->bss_lock);
5983 nl80211_finish_wdev_dump(rdev);
5988 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5989 int flags, struct net_device *dev,
5990 struct survey_info *survey)
5993 struct nlattr *infoattr;
5995 hdr = nl80211hdr_put(msg, portid, seq, flags,
5996 NL80211_CMD_NEW_SURVEY_RESULTS);
6000 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6001 goto nla_put_failure;
6003 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6005 goto nla_put_failure;
6007 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6008 survey->channel->center_freq))
6009 goto nla_put_failure;
6011 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6012 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6013 goto nla_put_failure;
6014 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6015 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6016 goto nla_put_failure;
6017 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6018 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6019 survey->channel_time))
6020 goto nla_put_failure;
6021 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6022 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6023 survey->channel_time_busy))
6024 goto nla_put_failure;
6025 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6026 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6027 survey->channel_time_ext_busy))
6028 goto nla_put_failure;
6029 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6030 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6031 survey->channel_time_rx))
6032 goto nla_put_failure;
6033 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6034 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6035 survey->channel_time_tx))
6036 goto nla_put_failure;
6038 nla_nest_end(msg, infoattr);
6040 return genlmsg_end(msg, hdr);
6043 genlmsg_cancel(msg, hdr);
6047 static int nl80211_dump_survey(struct sk_buff *skb,
6048 struct netlink_callback *cb)
6050 struct survey_info survey;
6051 struct cfg80211_registered_device *dev;
6052 struct wireless_dev *wdev;
6053 int survey_idx = cb->args[2];
6056 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
6060 if (!wdev->netdev) {
6065 if (!dev->ops->dump_survey) {
6071 struct ieee80211_channel *chan;
6073 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
6079 /* Survey without a channel doesn't make sense */
6080 if (!survey.channel) {
6085 chan = ieee80211_get_channel(&dev->wiphy,
6086 survey.channel->center_freq);
6087 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6092 if (nl80211_send_survey(skb,
6093 NETLINK_CB(cb->skb).portid,
6094 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6095 wdev->netdev, &survey) < 0)
6101 cb->args[2] = survey_idx;
6104 nl80211_finish_wdev_dump(dev);
6108 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6110 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6111 NL80211_WPA_VERSION_2));
6114 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6117 struct net_device *dev = info->user_ptr[1];
6118 struct ieee80211_channel *chan;
6119 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6120 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6121 enum nl80211_auth_type auth_type;
6122 struct key_parse key;
6123 bool local_state_change;
6125 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6128 if (!info->attrs[NL80211_ATTR_MAC])
6131 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6134 if (!info->attrs[NL80211_ATTR_SSID])
6137 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6140 err = nl80211_parse_key(info, &key);
6145 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6147 if (!key.p.key || !key.p.key_len)
6149 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6150 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6151 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6152 key.p.key_len != WLAN_KEY_LEN_WEP104))
6164 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6165 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6174 if (!rdev->ops->auth)
6177 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6178 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6181 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6182 chan = ieee80211_get_channel(&rdev->wiphy,
6183 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6184 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6187 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6188 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6190 if (info->attrs[NL80211_ATTR_IE]) {
6191 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6192 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6195 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6196 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6199 if (auth_type == NL80211_AUTHTYPE_SAE &&
6200 !info->attrs[NL80211_ATTR_SAE_DATA])
6203 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6204 if (auth_type != NL80211_AUTHTYPE_SAE)
6206 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6207 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6208 /* need to include at least Auth Transaction and Status Code */
6209 if (sae_data_len < 4)
6213 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6216 * Since we no longer track auth state, ignore
6217 * requests to only change local state.
6219 if (local_state_change)
6222 wdev_lock(dev->ieee80211_ptr);
6223 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6224 ssid, ssid_len, ie, ie_len,
6225 key.p.key, key.p.key_len, key.idx,
6226 sae_data, sae_data_len);
6227 wdev_unlock(dev->ieee80211_ptr);
6231 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6232 struct genl_info *info,
6233 struct cfg80211_crypto_settings *settings,
6236 memset(settings, 0, sizeof(*settings));
6238 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6240 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6242 proto = nla_get_u16(
6243 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6244 settings->control_port_ethertype = cpu_to_be16(proto);
6245 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6248 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6249 settings->control_port_no_encrypt = true;
6251 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6253 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6257 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6258 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6259 settings->n_ciphers_pairwise = len / sizeof(u32);
6261 if (len % sizeof(u32))
6264 if (settings->n_ciphers_pairwise > cipher_limit)
6267 memcpy(settings->ciphers_pairwise, data, len);
6269 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6270 if (!cfg80211_supported_cipher_suite(
6272 settings->ciphers_pairwise[i]))
6276 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6277 settings->cipher_group =
6278 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6279 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6280 settings->cipher_group))
6284 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6285 settings->wpa_versions =
6286 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6287 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6291 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6295 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6296 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6297 settings->n_akm_suites = len / sizeof(u32);
6299 if (len % sizeof(u32))
6302 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6305 memcpy(settings->akm_suites, data, len);
6311 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6314 struct net_device *dev = info->user_ptr[1];
6315 struct ieee80211_channel *chan;
6316 struct cfg80211_assoc_request req = {};
6317 const u8 *bssid, *ssid;
6318 int err, ssid_len = 0;
6320 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6323 if (!info->attrs[NL80211_ATTR_MAC] ||
6324 !info->attrs[NL80211_ATTR_SSID] ||
6325 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6328 if (!rdev->ops->assoc)
6331 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6332 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6335 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6337 chan = ieee80211_get_channel(&rdev->wiphy,
6338 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6339 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6342 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6343 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6345 if (info->attrs[NL80211_ATTR_IE]) {
6346 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6347 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6350 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6351 enum nl80211_mfp mfp =
6352 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6353 if (mfp == NL80211_MFP_REQUIRED)
6355 else if (mfp != NL80211_MFP_NO)
6359 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6360 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6362 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6363 req.flags |= ASSOC_REQ_DISABLE_HT;
6365 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6366 memcpy(&req.ht_capa_mask,
6367 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6368 sizeof(req.ht_capa_mask));
6370 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6371 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6373 memcpy(&req.ht_capa,
6374 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6375 sizeof(req.ht_capa));
6378 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6379 req.flags |= ASSOC_REQ_DISABLE_VHT;
6381 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6382 memcpy(&req.vht_capa_mask,
6383 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6384 sizeof(req.vht_capa_mask));
6386 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6387 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6389 memcpy(&req.vht_capa,
6390 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6391 sizeof(req.vht_capa));
6394 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6396 wdev_lock(dev->ieee80211_ptr);
6397 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6398 ssid, ssid_len, &req);
6399 wdev_unlock(dev->ieee80211_ptr);
6405 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6408 struct net_device *dev = info->user_ptr[1];
6409 const u8 *ie = NULL, *bssid;
6410 int ie_len = 0, err;
6412 bool local_state_change;
6414 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6417 if (!info->attrs[NL80211_ATTR_MAC])
6420 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6423 if (!rdev->ops->deauth)
6426 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6427 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6430 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6432 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6433 if (reason_code == 0) {
6434 /* Reason Code 0 is reserved */
6438 if (info->attrs[NL80211_ATTR_IE]) {
6439 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6440 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6443 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6445 wdev_lock(dev->ieee80211_ptr);
6446 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6447 local_state_change);
6448 wdev_unlock(dev->ieee80211_ptr);
6452 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6455 struct net_device *dev = info->user_ptr[1];
6456 const u8 *ie = NULL, *bssid;
6457 int ie_len = 0, err;
6459 bool local_state_change;
6461 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6464 if (!info->attrs[NL80211_ATTR_MAC])
6467 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6470 if (!rdev->ops->disassoc)
6473 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6474 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6477 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6479 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6480 if (reason_code == 0) {
6481 /* Reason Code 0 is reserved */
6485 if (info->attrs[NL80211_ATTR_IE]) {
6486 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6487 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6490 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6492 wdev_lock(dev->ieee80211_ptr);
6493 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6494 local_state_change);
6495 wdev_unlock(dev->ieee80211_ptr);
6500 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6501 int mcast_rate[IEEE80211_NUM_BANDS],
6504 struct wiphy *wiphy = &rdev->wiphy;
6508 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6509 struct ieee80211_supported_band *sband;
6511 sband = wiphy->bands[band];
6515 for (i = 0; i < sband->n_bitrates; i++) {
6516 if (sband->bitrates[i].bitrate == rateval) {
6517 mcast_rate[band] = i + 1;
6527 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6529 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6530 struct net_device *dev = info->user_ptr[1];
6531 struct cfg80211_ibss_params ibss;
6532 struct wiphy *wiphy;
6533 struct cfg80211_cached_keys *connkeys = NULL;
6536 memset(&ibss, 0, sizeof(ibss));
6538 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6541 if (!info->attrs[NL80211_ATTR_SSID] ||
6542 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6545 ibss.beacon_interval = 100;
6547 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6548 ibss.beacon_interval =
6549 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6550 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6554 if (!rdev->ops->join_ibss)
6557 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6560 wiphy = &rdev->wiphy;
6562 if (info->attrs[NL80211_ATTR_MAC]) {
6563 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6565 if (!is_valid_ether_addr(ibss.bssid))
6568 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6569 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6571 if (info->attrs[NL80211_ATTR_IE]) {
6572 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6573 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6576 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6580 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
6583 switch (ibss.chandef.width) {
6584 case NL80211_CHAN_WIDTH_5:
6585 case NL80211_CHAN_WIDTH_10:
6586 case NL80211_CHAN_WIDTH_20_NOHT:
6588 case NL80211_CHAN_WIDTH_20:
6589 case NL80211_CHAN_WIDTH_40:
6590 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6596 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6597 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6599 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6601 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6603 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6604 struct ieee80211_supported_band *sband =
6605 wiphy->bands[ibss.chandef.chan->band];
6607 err = ieee80211_get_ratemask(sband, rates, n_rates,
6613 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6614 memcpy(&ibss.ht_capa_mask,
6615 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6616 sizeof(ibss.ht_capa_mask));
6618 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6619 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6621 memcpy(&ibss.ht_capa,
6622 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6623 sizeof(ibss.ht_capa));
6626 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6627 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6628 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6631 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6634 connkeys = nl80211_parse_connkeys(rdev,
6635 info->attrs[NL80211_ATTR_KEYS],
6637 if (IS_ERR(connkeys))
6638 return PTR_ERR(connkeys);
6640 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6648 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6650 ibss.userspace_handles_dfs =
6651 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6653 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6659 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6661 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6662 struct net_device *dev = info->user_ptr[1];
6664 if (!rdev->ops->leave_ibss)
6667 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6670 return cfg80211_leave_ibss(rdev, dev, false);
6673 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6676 struct net_device *dev = info->user_ptr[1];
6677 int mcast_rate[IEEE80211_NUM_BANDS];
6681 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6682 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6685 if (!rdev->ops->set_mcast_rate)
6688 memset(mcast_rate, 0, sizeof(mcast_rate));
6690 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6693 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6694 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6697 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6702 static struct sk_buff *
6703 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6704 int approxlen, u32 portid, u32 seq,
6705 enum nl80211_commands cmd,
6706 enum nl80211_attrs attr, gfp_t gfp)
6708 struct sk_buff *skb;
6710 struct nlattr *data;
6712 skb = nlmsg_new(approxlen + 100, gfp);
6716 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6722 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6723 goto nla_put_failure;
6724 data = nla_nest_start(skb, attr);
6726 ((void **)skb->cb)[0] = rdev;
6727 ((void **)skb->cb)[1] = hdr;
6728 ((void **)skb->cb)[2] = data;
6737 #ifdef CONFIG_NL80211_TESTMODE
6738 static struct genl_multicast_group nl80211_testmode_mcgrp = {
6742 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6745 struct wireless_dev *wdev =
6746 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
6749 if (!rdev->ops->testmode_cmd)
6753 err = PTR_ERR(wdev);
6757 } else if (wdev->wiphy != &rdev->wiphy) {
6761 if (!info->attrs[NL80211_ATTR_TESTDATA])
6764 rdev->cur_cmd_info = info;
6765 err = rdev_testmode_cmd(rdev, wdev,
6766 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6767 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6768 rdev->cur_cmd_info = NULL;
6773 static int nl80211_testmode_dump(struct sk_buff *skb,
6774 struct netlink_callback *cb)
6776 struct cfg80211_registered_device *rdev;
6786 * 0 is a valid index, but not valid for args[0],
6787 * so we need to offset by 1.
6789 phy_idx = cb->args[0] - 1;
6791 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6792 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6797 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6798 nl80211_fam.attrbuf);
6800 err = PTR_ERR(rdev);
6803 phy_idx = rdev->wiphy_idx;
6806 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6808 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6812 data = nla_data((void *)cb->args[1]);
6813 data_len = nla_len((void *)cb->args[1]);
6816 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6822 if (!rdev->ops->testmode_dump) {
6828 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6829 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6830 NL80211_CMD_TESTMODE);
6831 struct nlattr *tmdata;
6836 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6837 genlmsg_cancel(skb, hdr);
6841 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6843 genlmsg_cancel(skb, hdr);
6846 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6847 nla_nest_end(skb, tmdata);
6849 if (err == -ENOBUFS || err == -ENOENT) {
6850 genlmsg_cancel(skb, hdr);
6853 genlmsg_cancel(skb, hdr);
6857 genlmsg_end(skb, hdr);
6862 cb->args[0] = phy_idx + 1;
6868 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6869 int approxlen, gfp_t gfp)
6871 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6873 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6874 NL80211_CMD_TESTMODE,
6875 NL80211_ATTR_TESTDATA, gfp);
6877 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6879 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6881 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6882 void *hdr = ((void **)skb->cb)[1];
6883 struct nlattr *data = ((void **)skb->cb)[2];
6885 nla_nest_end(skb, data);
6886 genlmsg_end(skb, hdr);
6887 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
6888 nl80211_testmode_mcgrp.id, gfp);
6890 EXPORT_SYMBOL(cfg80211_testmode_event);
6893 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6896 struct net_device *dev = info->user_ptr[1];
6897 struct cfg80211_connect_params connect;
6898 struct wiphy *wiphy;
6899 struct cfg80211_cached_keys *connkeys = NULL;
6902 memset(&connect, 0, sizeof(connect));
6904 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6907 if (!info->attrs[NL80211_ATTR_SSID] ||
6908 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6911 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6913 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6914 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6915 NL80211_CMD_CONNECT))
6918 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6920 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6922 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6923 NL80211_MAX_NR_CIPHER_SUITES);
6927 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6928 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6931 wiphy = &rdev->wiphy;
6933 connect.bg_scan_period = -1;
6934 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6935 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6936 connect.bg_scan_period =
6937 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6940 if (info->attrs[NL80211_ATTR_MAC])
6941 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6942 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6943 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6945 if (info->attrs[NL80211_ATTR_IE]) {
6946 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6947 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6950 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6951 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6952 if (connect.mfp != NL80211_MFP_REQUIRED &&
6953 connect.mfp != NL80211_MFP_NO)
6956 connect.mfp = NL80211_MFP_NO;
6959 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6961 ieee80211_get_channel(wiphy,
6962 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6963 if (!connect.channel ||
6964 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6968 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6969 connkeys = nl80211_parse_connkeys(rdev,
6970 info->attrs[NL80211_ATTR_KEYS], NULL);
6971 if (IS_ERR(connkeys))
6972 return PTR_ERR(connkeys);
6975 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6976 connect.flags |= ASSOC_REQ_DISABLE_HT;
6978 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6979 memcpy(&connect.ht_capa_mask,
6980 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6981 sizeof(connect.ht_capa_mask));
6983 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6984 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6988 memcpy(&connect.ht_capa,
6989 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6990 sizeof(connect.ht_capa));
6993 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6994 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6996 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6997 memcpy(&connect.vht_capa_mask,
6998 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6999 sizeof(connect.vht_capa_mask));
7001 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7002 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7006 memcpy(&connect.vht_capa,
7007 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7008 sizeof(connect.vht_capa));
7011 wdev_lock(dev->ieee80211_ptr);
7012 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7013 wdev_unlock(dev->ieee80211_ptr);
7019 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7021 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7022 struct net_device *dev = info->user_ptr[1];
7026 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7027 reason = WLAN_REASON_DEAUTH_LEAVING;
7029 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7034 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7035 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7038 wdev_lock(dev->ieee80211_ptr);
7039 ret = cfg80211_disconnect(rdev, dev, reason, true);
7040 wdev_unlock(dev->ieee80211_ptr);
7044 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7046 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7051 if (!info->attrs[NL80211_ATTR_PID])
7054 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7056 net = get_net_ns_by_pid(pid);
7058 return PTR_ERR(net);
7062 /* check if anything to do */
7063 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7064 err = cfg80211_switch_netns(rdev, net);
7070 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7073 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7074 struct cfg80211_pmksa *pmksa) = NULL;
7075 struct net_device *dev = info->user_ptr[1];
7076 struct cfg80211_pmksa pmksa;
7078 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7080 if (!info->attrs[NL80211_ATTR_MAC])
7083 if (!info->attrs[NL80211_ATTR_PMKID])
7086 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7087 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7089 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7090 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7093 switch (info->genlhdr->cmd) {
7094 case NL80211_CMD_SET_PMKSA:
7095 rdev_ops = rdev->ops->set_pmksa;
7097 case NL80211_CMD_DEL_PMKSA:
7098 rdev_ops = rdev->ops->del_pmksa;
7108 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7111 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7114 struct net_device *dev = info->user_ptr[1];
7116 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7117 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7120 if (!rdev->ops->flush_pmksa)
7123 return rdev_flush_pmksa(rdev, dev);
7126 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7128 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7129 struct net_device *dev = info->user_ptr[1];
7130 u8 action_code, dialog_token;
7134 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7135 !rdev->ops->tdls_mgmt)
7138 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7139 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7140 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7141 !info->attrs[NL80211_ATTR_IE] ||
7142 !info->attrs[NL80211_ATTR_MAC])
7145 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7146 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7147 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7148 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7150 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7151 dialog_token, status_code,
7152 nla_data(info->attrs[NL80211_ATTR_IE]),
7153 nla_len(info->attrs[NL80211_ATTR_IE]));
7156 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7159 struct net_device *dev = info->user_ptr[1];
7160 enum nl80211_tdls_operation operation;
7163 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7164 !rdev->ops->tdls_oper)
7167 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7168 !info->attrs[NL80211_ATTR_MAC])
7171 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7172 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7174 return rdev_tdls_oper(rdev, dev, peer, operation);
7177 static int nl80211_remain_on_channel(struct sk_buff *skb,
7178 struct genl_info *info)
7180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7181 struct wireless_dev *wdev = info->user_ptr[1];
7182 struct cfg80211_chan_def chandef;
7183 struct sk_buff *msg;
7189 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7190 !info->attrs[NL80211_ATTR_DURATION])
7193 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7195 if (!rdev->ops->remain_on_channel ||
7196 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7200 * We should be on that channel for at least a minimum amount of
7201 * time (10ms) but no longer than the driver supports.
7203 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7204 duration > rdev->wiphy.max_remain_on_channel_duration)
7207 err = nl80211_parse_chandef(rdev, info, &chandef);
7211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7215 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7216 NL80211_CMD_REMAIN_ON_CHANNEL);
7222 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7228 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7229 goto nla_put_failure;
7231 genlmsg_end(msg, hdr);
7233 return genlmsg_reply(msg, info);
7242 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7243 struct genl_info *info)
7245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7246 struct wireless_dev *wdev = info->user_ptr[1];
7249 if (!info->attrs[NL80211_ATTR_COOKIE])
7252 if (!rdev->ops->cancel_remain_on_channel)
7255 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7257 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7260 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7261 u8 *rates, u8 rates_len)
7266 for (i = 0; i < rates_len; i++) {
7267 int rate = (rates[i] & 0x7f) * 5;
7269 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7270 struct ieee80211_rate *srate =
7271 &sband->bitrates[ridx];
7272 if (rate == srate->bitrate) {
7277 if (ridx == sband->n_bitrates)
7278 return 0; /* rate not found */
7284 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7285 u8 *rates, u8 rates_len,
7286 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7290 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7292 for (i = 0; i < rates_len; i++) {
7295 ridx = rates[i] / 8;
7296 rbit = BIT(rates[i] % 8);
7298 /* check validity */
7299 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7302 /* check availability */
7303 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7312 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7313 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7314 .len = NL80211_MAX_SUPP_RATES },
7315 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7316 .len = NL80211_MAX_SUPP_HT_RATES },
7319 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7320 struct genl_info *info)
7322 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7324 struct cfg80211_bitrate_mask mask;
7326 struct net_device *dev = info->user_ptr[1];
7327 struct nlattr *tx_rates;
7328 struct ieee80211_supported_band *sband;
7330 if (!rdev->ops->set_bitrate_mask)
7333 memset(&mask, 0, sizeof(mask));
7334 /* Default to all rates enabled */
7335 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7336 sband = rdev->wiphy.bands[i];
7341 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7342 memcpy(mask.control[i].mcs,
7343 sband->ht_cap.mcs.rx_mask,
7344 sizeof(mask.control[i].mcs));
7347 /* if no rates are given set it back to the defaults */
7348 if (!info->attrs[NL80211_ATTR_TX_RATES])
7352 * The nested attribute uses enum nl80211_band as the index. This maps
7353 * directly to the enum ieee80211_band values used in cfg80211.
7355 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7356 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7358 enum ieee80211_band band = nla_type(tx_rates);
7359 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7361 sband = rdev->wiphy.bands[band];
7364 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7365 nla_len(tx_rates), nl80211_txattr_policy);
7366 if (tb[NL80211_TXRATE_LEGACY]) {
7367 mask.control[band].legacy = rateset_to_mask(
7369 nla_data(tb[NL80211_TXRATE_LEGACY]),
7370 nla_len(tb[NL80211_TXRATE_LEGACY]));
7371 if ((mask.control[band].legacy == 0) &&
7372 nla_len(tb[NL80211_TXRATE_LEGACY]))
7375 if (tb[NL80211_TXRATE_MCS]) {
7376 if (!ht_rateset_to_mask(
7378 nla_data(tb[NL80211_TXRATE_MCS]),
7379 nla_len(tb[NL80211_TXRATE_MCS]),
7380 mask.control[band].mcs))
7384 if (mask.control[band].legacy == 0) {
7385 /* don't allow empty legacy rates if HT
7386 * is not even supported. */
7387 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7390 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7391 if (mask.control[band].mcs[i])
7394 /* legacy and mcs rates may not be both empty */
7395 if (i == IEEE80211_HT_MCS_MASK_LEN)
7401 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7404 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7407 struct wireless_dev *wdev = info->user_ptr[1];
7408 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7410 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7413 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7414 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7416 switch (wdev->iftype) {
7417 case NL80211_IFTYPE_STATION:
7418 case NL80211_IFTYPE_ADHOC:
7419 case NL80211_IFTYPE_P2P_CLIENT:
7420 case NL80211_IFTYPE_AP:
7421 case NL80211_IFTYPE_AP_VLAN:
7422 case NL80211_IFTYPE_MESH_POINT:
7423 case NL80211_IFTYPE_P2P_GO:
7424 case NL80211_IFTYPE_P2P_DEVICE:
7430 /* not much point in registering if we can't reply */
7431 if (!rdev->ops->mgmt_tx)
7434 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7435 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7436 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7439 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7442 struct wireless_dev *wdev = info->user_ptr[1];
7443 struct cfg80211_chan_def chandef;
7447 struct sk_buff *msg = NULL;
7448 struct cfg80211_mgmt_tx_params params = {
7449 .dont_wait_for_ack =
7450 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7453 if (!info->attrs[NL80211_ATTR_FRAME])
7456 if (!rdev->ops->mgmt_tx)
7459 switch (wdev->iftype) {
7460 case NL80211_IFTYPE_P2P_DEVICE:
7461 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7463 case NL80211_IFTYPE_STATION:
7464 case NL80211_IFTYPE_ADHOC:
7465 case NL80211_IFTYPE_P2P_CLIENT:
7466 case NL80211_IFTYPE_AP:
7467 case NL80211_IFTYPE_AP_VLAN:
7468 case NL80211_IFTYPE_MESH_POINT:
7469 case NL80211_IFTYPE_P2P_GO:
7475 if (info->attrs[NL80211_ATTR_DURATION]) {
7476 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7478 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7481 * We should wait on the channel for at least a minimum amount
7482 * of time (10ms) but no longer than the driver supports.
7484 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7485 params.wait > rdev->wiphy.max_remain_on_channel_duration)
7490 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7492 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7495 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7497 /* get the channel if any has been specified, otherwise pass NULL to
7498 * the driver. The latter will use the current one
7500 chandef.chan = NULL;
7501 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7502 err = nl80211_parse_chandef(rdev, info, &chandef);
7507 if (!chandef.chan && params.offchan)
7510 if (!params.dont_wait_for_ack) {
7511 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7515 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7523 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7524 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7525 params.chan = chandef.chan;
7526 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
7531 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7532 goto nla_put_failure;
7534 genlmsg_end(msg, hdr);
7535 return genlmsg_reply(msg, info);
7547 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7550 struct wireless_dev *wdev = info->user_ptr[1];
7553 if (!info->attrs[NL80211_ATTR_COOKIE])
7556 if (!rdev->ops->mgmt_tx_cancel_wait)
7559 switch (wdev->iftype) {
7560 case NL80211_IFTYPE_STATION:
7561 case NL80211_IFTYPE_ADHOC:
7562 case NL80211_IFTYPE_P2P_CLIENT:
7563 case NL80211_IFTYPE_AP:
7564 case NL80211_IFTYPE_AP_VLAN:
7565 case NL80211_IFTYPE_P2P_GO:
7566 case NL80211_IFTYPE_P2P_DEVICE:
7572 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7574 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7577 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7579 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7580 struct wireless_dev *wdev;
7581 struct net_device *dev = info->user_ptr[1];
7586 if (!info->attrs[NL80211_ATTR_PS_STATE])
7589 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7591 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7594 wdev = dev->ieee80211_ptr;
7596 if (!rdev->ops->set_power_mgmt)
7599 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7601 if (state == wdev->ps)
7604 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7610 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7613 enum nl80211_ps_state ps_state;
7614 struct wireless_dev *wdev;
7615 struct net_device *dev = info->user_ptr[1];
7616 struct sk_buff *msg;
7620 wdev = dev->ieee80211_ptr;
7622 if (!rdev->ops->set_power_mgmt)
7625 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7629 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7630 NL80211_CMD_GET_POWER_SAVE);
7637 ps_state = NL80211_PS_ENABLED;
7639 ps_state = NL80211_PS_DISABLED;
7641 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7642 goto nla_put_failure;
7644 genlmsg_end(msg, hdr);
7645 return genlmsg_reply(msg, info);
7654 static struct nla_policy
7655 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7656 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7657 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7658 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
7659 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7660 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7661 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
7664 static int nl80211_set_cqm_txe(struct genl_info *info,
7665 u32 rate, u32 pkts, u32 intvl)
7667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7668 struct net_device *dev = info->user_ptr[1];
7669 struct wireless_dev *wdev = dev->ieee80211_ptr;
7671 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
7674 if (!rdev->ops->set_cqm_txe_config)
7677 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7678 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7681 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7684 static int nl80211_set_cqm_rssi(struct genl_info *info,
7685 s32 threshold, u32 hysteresis)
7687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7688 struct net_device *dev = info->user_ptr[1];
7689 struct wireless_dev *wdev = dev->ieee80211_ptr;
7694 /* disabling - hysteresis should also be zero then */
7698 if (!rdev->ops->set_cqm_rssi_config)
7701 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7702 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7705 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7708 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7710 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7714 cqm = info->attrs[NL80211_ATTR_CQM];
7718 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7719 nl80211_attr_cqm_policy);
7723 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7724 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7725 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7726 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7728 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7731 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7732 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7733 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7734 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7735 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7736 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7738 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
7744 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7747 struct net_device *dev = info->user_ptr[1];
7748 struct mesh_config cfg;
7749 struct mesh_setup setup;
7752 /* start with default */
7753 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7754 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7756 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7757 /* and parse parameters if given */
7758 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7763 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7764 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7767 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7768 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7770 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7771 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7772 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7775 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7776 setup.beacon_interval =
7777 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7778 if (setup.beacon_interval < 10 ||
7779 setup.beacon_interval > 10000)
7783 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7785 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7786 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7790 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7791 /* parse additional setup parameters if given */
7792 err = nl80211_parse_mesh_setup(info, &setup);
7798 cfg.auto_open_plinks = false;
7800 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7801 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7805 /* cfg80211_join_mesh() will sort it out */
7806 setup.chandef.chan = NULL;
7809 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7810 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7812 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7813 struct ieee80211_supported_band *sband;
7815 if (!setup.chandef.chan)
7818 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7820 err = ieee80211_get_ratemask(sband, rates, n_rates,
7821 &setup.basic_rates);
7826 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7829 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7832 struct net_device *dev = info->user_ptr[1];
7834 return cfg80211_leave_mesh(rdev, dev);
7838 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7839 struct cfg80211_registered_device *rdev)
7841 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
7842 struct nlattr *nl_pats, *nl_pat;
7845 if (!wowlan->n_patterns)
7848 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7852 for (i = 0; i < wowlan->n_patterns; i++) {
7853 nl_pat = nla_nest_start(msg, i + 1);
7856 pat_len = wowlan->patterns[i].pattern_len;
7857 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
7858 wowlan->patterns[i].mask) ||
7859 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
7860 wowlan->patterns[i].pattern) ||
7861 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
7862 wowlan->patterns[i].pkt_offset))
7864 nla_nest_end(msg, nl_pat);
7866 nla_nest_end(msg, nl_pats);
7871 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7872 struct cfg80211_wowlan_tcp *tcp)
7874 struct nlattr *nl_tcp;
7879 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7883 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7884 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7885 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7886 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7887 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7888 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7889 tcp->payload_len, tcp->payload) ||
7890 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7891 tcp->data_interval) ||
7892 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7893 tcp->wake_len, tcp->wake_data) ||
7894 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7895 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7898 if (tcp->payload_seq.len &&
7899 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7900 sizeof(tcp->payload_seq), &tcp->payload_seq))
7903 if (tcp->payload_tok.len &&
7904 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7905 sizeof(tcp->payload_tok) + tcp->tokens_size,
7909 nla_nest_end(msg, nl_tcp);
7914 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7917 struct sk_buff *msg;
7919 u32 size = NLMSG_DEFAULT_SIZE;
7921 if (!rdev->wiphy.wowlan)
7924 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
7925 /* adjust size to have room for all the data */
7926 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7927 rdev->wiphy.wowlan_config->tcp->payload_len +
7928 rdev->wiphy.wowlan_config->tcp->wake_len +
7929 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
7932 msg = nlmsg_new(size, GFP_KERNEL);
7936 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7937 NL80211_CMD_GET_WOWLAN);
7939 goto nla_put_failure;
7941 if (rdev->wiphy.wowlan_config) {
7942 struct nlattr *nl_wowlan;
7944 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7946 goto nla_put_failure;
7948 if ((rdev->wiphy.wowlan_config->any &&
7949 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7950 (rdev->wiphy.wowlan_config->disconnect &&
7951 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7952 (rdev->wiphy.wowlan_config->magic_pkt &&
7953 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7954 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
7955 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7956 (rdev->wiphy.wowlan_config->eap_identity_req &&
7957 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7958 (rdev->wiphy.wowlan_config->four_way_handshake &&
7959 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7960 (rdev->wiphy.wowlan_config->rfkill_release &&
7961 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7962 goto nla_put_failure;
7964 if (nl80211_send_wowlan_patterns(msg, rdev))
7965 goto nla_put_failure;
7967 if (nl80211_send_wowlan_tcp(msg,
7968 rdev->wiphy.wowlan_config->tcp))
7969 goto nla_put_failure;
7971 nla_nest_end(msg, nl_wowlan);
7974 genlmsg_end(msg, hdr);
7975 return genlmsg_reply(msg, info);
7982 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7983 struct nlattr *attr,
7984 struct cfg80211_wowlan *trig)
7986 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7987 struct cfg80211_wowlan_tcp *cfg;
7988 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7989 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7991 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7994 if (!rdev->wiphy.wowlan->tcp)
7997 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7998 nla_data(attr), nla_len(attr),
7999 nl80211_wowlan_tcp_policy);
8003 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8004 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8005 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8006 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8007 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8008 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8009 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8010 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8013 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8014 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8017 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8018 rdev->wiphy.wowlan->tcp->data_interval_max ||
8019 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8022 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8023 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8026 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8027 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8030 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8031 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8033 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8034 tokens_size = tokln - sizeof(*tok);
8036 if (!tok->len || tokens_size % tok->len)
8038 if (!rdev->wiphy.wowlan->tcp->tok)
8040 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8042 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8044 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8046 if (tok->offset + tok->len > data_size)
8050 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8051 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8052 if (!rdev->wiphy.wowlan->tcp->seq)
8054 if (seq->len == 0 || seq->len > 4)
8056 if (seq->len + seq->offset > data_size)
8060 size = sizeof(*cfg);
8062 size += wake_size + wake_mask_size;
8063 size += tokens_size;
8065 cfg = kzalloc(size, GFP_KERNEL);
8068 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8069 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8070 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8072 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8073 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8077 /* allocate a socket and port for it and use it */
8078 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8079 IPPROTO_TCP, &cfg->sock, 1);
8084 if (inet_csk_get_port(cfg->sock->sk, port)) {
8085 sock_release(cfg->sock);
8089 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8095 cfg->src_port = port;
8098 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8099 cfg->payload_len = data_size;
8100 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8101 memcpy((void *)cfg->payload,
8102 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8105 cfg->payload_seq = *seq;
8106 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8107 cfg->wake_len = wake_size;
8108 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8109 memcpy((void *)cfg->wake_data,
8110 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8112 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8113 data_size + wake_size;
8114 memcpy((void *)cfg->wake_mask,
8115 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8118 cfg->tokens_size = tokens_size;
8119 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8127 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8129 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8130 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8131 struct cfg80211_wowlan new_triggers = {};
8132 struct cfg80211_wowlan *ntrig;
8133 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8135 bool prev_enabled = rdev->wiphy.wowlan_config;
8140 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8141 cfg80211_rdev_free_wowlan(rdev);
8142 rdev->wiphy.wowlan_config = NULL;
8146 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8147 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8148 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8149 nl80211_wowlan_policy);
8153 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8154 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8156 new_triggers.any = true;
8159 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8160 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8162 new_triggers.disconnect = true;
8165 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8166 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8168 new_triggers.magic_pkt = true;
8171 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8174 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8175 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8177 new_triggers.gtk_rekey_failure = true;
8180 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8181 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8183 new_triggers.eap_identity_req = true;
8186 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8187 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8189 new_triggers.four_way_handshake = true;
8192 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8193 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8195 new_triggers.rfkill_release = true;
8198 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8201 int rem, pat_len, mask_len, pkt_offset;
8202 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8204 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8207 if (n_patterns > wowlan->n_patterns)
8210 new_triggers.patterns = kcalloc(n_patterns,
8211 sizeof(new_triggers.patterns[0]),
8213 if (!new_triggers.patterns)
8216 new_triggers.n_patterns = n_patterns;
8219 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8221 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8222 nla_len(pat), NULL);
8224 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8225 !pat_tb[NL80211_PKTPAT_PATTERN])
8227 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8228 mask_len = DIV_ROUND_UP(pat_len, 8);
8229 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8231 if (pat_len > wowlan->pattern_max_len ||
8232 pat_len < wowlan->pattern_min_len)
8235 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8238 pkt_offset = nla_get_u32(
8239 pat_tb[NL80211_PKTPAT_OFFSET]);
8240 if (pkt_offset > wowlan->max_pkt_offset)
8242 new_triggers.patterns[i].pkt_offset = pkt_offset;
8244 new_triggers.patterns[i].mask =
8245 kmalloc(mask_len + pat_len, GFP_KERNEL);
8246 if (!new_triggers.patterns[i].mask) {
8250 new_triggers.patterns[i].pattern =
8251 new_triggers.patterns[i].mask + mask_len;
8252 memcpy(new_triggers.patterns[i].mask,
8253 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8255 new_triggers.patterns[i].pattern_len = pat_len;
8256 memcpy(new_triggers.patterns[i].pattern,
8257 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8263 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8264 err = nl80211_parse_wowlan_tcp(
8265 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8271 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8276 cfg80211_rdev_free_wowlan(rdev);
8277 rdev->wiphy.wowlan_config = ntrig;
8280 if (rdev->ops->set_wakeup &&
8281 prev_enabled != !!rdev->wiphy.wowlan_config)
8282 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8286 for (i = 0; i < new_triggers.n_patterns; i++)
8287 kfree(new_triggers.patterns[i].mask);
8288 kfree(new_triggers.patterns);
8289 if (new_triggers.tcp && new_triggers.tcp->sock)
8290 sock_release(new_triggers.tcp->sock);
8291 kfree(new_triggers.tcp);
8296 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8297 struct cfg80211_registered_device *rdev)
8299 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8301 struct cfg80211_coalesce_rules *rule;
8303 if (!rdev->coalesce->n_rules)
8306 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8310 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8311 nl_rule = nla_nest_start(msg, i + 1);
8315 rule = &rdev->coalesce->rules[i];
8316 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8320 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8324 nl_pats = nla_nest_start(msg,
8325 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8329 for (j = 0; j < rule->n_patterns; j++) {
8330 nl_pat = nla_nest_start(msg, j + 1);
8333 pat_len = rule->patterns[j].pattern_len;
8334 if (nla_put(msg, NL80211_PKTPAT_MASK,
8335 DIV_ROUND_UP(pat_len, 8),
8336 rule->patterns[j].mask) ||
8337 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8338 rule->patterns[j].pattern) ||
8339 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8340 rule->patterns[j].pkt_offset))
8342 nla_nest_end(msg, nl_pat);
8344 nla_nest_end(msg, nl_pats);
8345 nla_nest_end(msg, nl_rule);
8347 nla_nest_end(msg, nl_rules);
8352 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8355 struct sk_buff *msg;
8358 if (!rdev->wiphy.coalesce)
8361 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8365 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8366 NL80211_CMD_GET_COALESCE);
8368 goto nla_put_failure;
8370 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8371 goto nla_put_failure;
8373 genlmsg_end(msg, hdr);
8374 return genlmsg_reply(msg, info);
8381 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8383 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8385 struct cfg80211_coalesce_rules *rule;
8390 for (i = 0; i < coalesce->n_rules; i++) {
8391 rule = &coalesce->rules[i];
8392 for (j = 0; j < rule->n_patterns; j++)
8393 kfree(rule->patterns[j].mask);
8394 kfree(rule->patterns);
8396 kfree(coalesce->rules);
8398 rdev->coalesce = NULL;
8401 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8402 struct nlattr *rule,
8403 struct cfg80211_coalesce_rules *new_rule)
8406 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8407 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8408 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8409 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8411 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8412 nla_len(rule), nl80211_coalesce_policy);
8416 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8418 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8419 if (new_rule->delay > coalesce->max_delay)
8422 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8423 new_rule->condition =
8424 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8425 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8426 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8429 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8432 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8435 if (n_patterns > coalesce->n_patterns)
8438 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8440 if (!new_rule->patterns)
8443 new_rule->n_patterns = n_patterns;
8446 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8448 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8449 nla_len(pat), NULL);
8450 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8451 !pat_tb[NL80211_PKTPAT_PATTERN])
8453 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8454 mask_len = DIV_ROUND_UP(pat_len, 8);
8455 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8457 if (pat_len > coalesce->pattern_max_len ||
8458 pat_len < coalesce->pattern_min_len)
8461 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8464 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8465 if (pkt_offset > coalesce->max_pkt_offset)
8467 new_rule->patterns[i].pkt_offset = pkt_offset;
8469 new_rule->patterns[i].mask =
8470 kmalloc(mask_len + pat_len, GFP_KERNEL);
8471 if (!new_rule->patterns[i].mask)
8473 new_rule->patterns[i].pattern =
8474 new_rule->patterns[i].mask + mask_len;
8475 memcpy(new_rule->patterns[i].mask,
8476 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8477 new_rule->patterns[i].pattern_len = pat_len;
8478 memcpy(new_rule->patterns[i].pattern,
8479 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8486 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8489 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8490 struct cfg80211_coalesce new_coalesce = {};
8491 struct cfg80211_coalesce *n_coalesce;
8492 int err, rem_rule, n_rules = 0, i, j;
8493 struct nlattr *rule;
8494 struct cfg80211_coalesce_rules *tmp_rule;
8496 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8499 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8500 cfg80211_rdev_free_coalesce(rdev);
8501 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8505 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8508 if (n_rules > coalesce->n_rules)
8511 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8513 if (!new_coalesce.rules)
8516 new_coalesce.n_rules = n_rules;
8519 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8521 err = nl80211_parse_coalesce_rule(rdev, rule,
8522 &new_coalesce.rules[i]);
8529 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8533 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8538 cfg80211_rdev_free_coalesce(rdev);
8539 rdev->coalesce = n_coalesce;
8543 for (i = 0; i < new_coalesce.n_rules; i++) {
8544 tmp_rule = &new_coalesce.rules[i];
8545 for (j = 0; j < tmp_rule->n_patterns; j++)
8546 kfree(tmp_rule->patterns[j].mask);
8547 kfree(tmp_rule->patterns);
8549 kfree(new_coalesce.rules);
8554 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8557 struct net_device *dev = info->user_ptr[1];
8558 struct wireless_dev *wdev = dev->ieee80211_ptr;
8559 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8560 struct cfg80211_gtk_rekey_data rekey_data;
8563 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8566 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8567 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8568 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8569 nl80211_rekey_policy);
8573 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8575 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8577 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8580 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8582 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8584 memcpy(rekey_data.replay_ctr,
8585 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8586 NL80211_REPLAY_CTR_LEN);
8589 if (!wdev->current_bss) {
8594 if (!rdev->ops->set_rekey_data) {
8599 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8605 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8606 struct genl_info *info)
8608 struct net_device *dev = info->user_ptr[1];
8609 struct wireless_dev *wdev = dev->ieee80211_ptr;
8611 if (wdev->iftype != NL80211_IFTYPE_AP &&
8612 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8615 if (wdev->ap_unexpected_nlportid)
8618 wdev->ap_unexpected_nlportid = info->snd_portid;
8622 static int nl80211_probe_client(struct sk_buff *skb,
8623 struct genl_info *info)
8625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8626 struct net_device *dev = info->user_ptr[1];
8627 struct wireless_dev *wdev = dev->ieee80211_ptr;
8628 struct sk_buff *msg;
8634 if (wdev->iftype != NL80211_IFTYPE_AP &&
8635 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8638 if (!info->attrs[NL80211_ATTR_MAC])
8641 if (!rdev->ops->probe_client)
8644 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8648 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8649 NL80211_CMD_PROBE_CLIENT);
8655 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8657 err = rdev_probe_client(rdev, dev, addr, &cookie);
8661 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8662 goto nla_put_failure;
8664 genlmsg_end(msg, hdr);
8666 return genlmsg_reply(msg, info);
8675 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8678 struct cfg80211_beacon_registration *reg, *nreg;
8681 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8684 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8688 /* First, check if already registered. */
8689 spin_lock_bh(&rdev->beacon_registrations_lock);
8690 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8691 if (reg->nlportid == info->snd_portid) {
8696 /* Add it to the list */
8697 nreg->nlportid = info->snd_portid;
8698 list_add(&nreg->list, &rdev->beacon_registrations);
8700 spin_unlock_bh(&rdev->beacon_registrations_lock);
8704 spin_unlock_bh(&rdev->beacon_registrations_lock);
8709 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8712 struct wireless_dev *wdev = info->user_ptr[1];
8715 if (!rdev->ops->start_p2p_device)
8718 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8721 if (wdev->p2p_started)
8724 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8728 err = rdev_start_p2p_device(rdev, wdev);
8732 wdev->p2p_started = true;
8738 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8741 struct wireless_dev *wdev = info->user_ptr[1];
8743 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8746 if (!rdev->ops->stop_p2p_device)
8749 cfg80211_stop_p2p_device(rdev, wdev);
8754 static int nl80211_get_protocol_features(struct sk_buff *skb,
8755 struct genl_info *info)
8758 struct sk_buff *msg;
8760 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8764 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8765 NL80211_CMD_GET_PROTOCOL_FEATURES);
8767 goto nla_put_failure;
8769 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8770 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8771 goto nla_put_failure;
8773 genlmsg_end(msg, hdr);
8774 return genlmsg_reply(msg, info);
8781 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8783 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8784 struct cfg80211_update_ft_ies_params ft_params;
8785 struct net_device *dev = info->user_ptr[1];
8787 if (!rdev->ops->update_ft_ies)
8790 if (!info->attrs[NL80211_ATTR_MDID] ||
8791 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8794 memset(&ft_params, 0, sizeof(ft_params));
8795 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8796 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8797 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8799 return rdev_update_ft_ies(rdev, dev, &ft_params);
8802 static int nl80211_crit_protocol_start(struct sk_buff *skb,
8803 struct genl_info *info)
8805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8806 struct wireless_dev *wdev = info->user_ptr[1];
8807 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8811 if (!rdev->ops->crit_proto_start)
8814 if (WARN_ON(!rdev->ops->crit_proto_stop))
8817 if (rdev->crit_proto_nlportid)
8820 /* determine protocol if provided */
8821 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8822 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8824 if (proto >= NUM_NL80211_CRIT_PROTO)
8827 /* timeout must be provided */
8828 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8832 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8834 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8837 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8839 rdev->crit_proto_nlportid = info->snd_portid;
8844 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8845 struct genl_info *info)
8847 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8848 struct wireless_dev *wdev = info->user_ptr[1];
8850 if (!rdev->ops->crit_proto_stop)
8853 if (rdev->crit_proto_nlportid) {
8854 rdev->crit_proto_nlportid = 0;
8855 rdev_crit_proto_stop(rdev, wdev);
8860 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
8862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8863 struct wireless_dev *wdev =
8864 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8868 if (!rdev->wiphy.vendor_commands)
8872 err = PTR_ERR(wdev);
8876 } else if (wdev->wiphy != &rdev->wiphy) {
8880 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
8881 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
8884 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
8885 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
8886 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
8887 const struct wiphy_vendor_command *vcmd;
8891 vcmd = &rdev->wiphy.vendor_commands[i];
8893 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
8896 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
8897 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
8900 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
8904 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
8906 !netif_running(wdev->netdev))
8908 if (!wdev->netdev && !wdev->p2p_started)
8915 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
8916 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
8917 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
8920 rdev->cur_cmd_info = info;
8921 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
8923 rdev->cur_cmd_info = NULL;
8930 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
8931 enum nl80211_commands cmd,
8932 enum nl80211_attrs attr,
8935 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8937 if (WARN_ON(!rdev->cur_cmd_info))
8940 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
8941 rdev->cur_cmd_info->snd_portid,
8942 rdev->cur_cmd_info->snd_seq,
8943 cmd, attr, GFP_KERNEL);
8945 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
8947 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
8949 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8950 void *hdr = ((void **)skb->cb)[1];
8951 struct nlattr *data = ((void **)skb->cb)[2];
8953 if (WARN_ON(!rdev->cur_cmd_info)) {
8958 nla_nest_end(skb, data);
8959 genlmsg_end(skb, hdr);
8960 return genlmsg_reply(skb, rdev->cur_cmd_info);
8962 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
8965 #define NL80211_FLAG_NEED_WIPHY 0x01
8966 #define NL80211_FLAG_NEED_NETDEV 0x02
8967 #define NL80211_FLAG_NEED_RTNL 0x04
8968 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8969 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8970 NL80211_FLAG_CHECK_NETDEV_UP)
8971 #define NL80211_FLAG_NEED_WDEV 0x10
8972 /* If a netdev is associated, it must be UP, P2P must be started */
8973 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8974 NL80211_FLAG_CHECK_NETDEV_UP)
8976 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8977 struct genl_info *info)
8979 struct cfg80211_registered_device *rdev;
8980 struct wireless_dev *wdev;
8981 struct net_device *dev;
8982 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8987 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
8988 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
8992 return PTR_ERR(rdev);
8994 info->user_ptr[0] = rdev;
8995 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8996 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8999 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9004 return PTR_ERR(wdev);
9008 rdev = wiphy_to_dev(wdev->wiphy);
9010 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9017 info->user_ptr[1] = dev;
9019 info->user_ptr[1] = wdev;
9023 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9024 !netif_running(dev)) {
9031 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9032 if (!wdev->p2p_started) {
9039 info->user_ptr[0] = rdev;
9045 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
9046 struct genl_info *info)
9048 if (info->user_ptr[1]) {
9049 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9050 struct wireless_dev *wdev = info->user_ptr[1];
9053 dev_put(wdev->netdev);
9055 dev_put(info->user_ptr[1]);
9058 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9062 static struct genl_ops nl80211_ops[] = {
9064 .cmd = NL80211_CMD_GET_WIPHY,
9065 .doit = nl80211_get_wiphy,
9066 .dumpit = nl80211_dump_wiphy,
9067 .done = nl80211_dump_wiphy_done,
9068 .policy = nl80211_policy,
9069 /* can be retrieved by unprivileged users */
9070 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9071 NL80211_FLAG_NEED_RTNL,
9074 .cmd = NL80211_CMD_SET_WIPHY,
9075 .doit = nl80211_set_wiphy,
9076 .policy = nl80211_policy,
9077 .flags = GENL_ADMIN_PERM,
9078 .internal_flags = NL80211_FLAG_NEED_RTNL,
9081 .cmd = NL80211_CMD_GET_INTERFACE,
9082 .doit = nl80211_get_interface,
9083 .dumpit = nl80211_dump_interface,
9084 .policy = nl80211_policy,
9085 /* can be retrieved by unprivileged users */
9086 .internal_flags = NL80211_FLAG_NEED_WDEV |
9087 NL80211_FLAG_NEED_RTNL,
9090 .cmd = NL80211_CMD_SET_INTERFACE,
9091 .doit = nl80211_set_interface,
9092 .policy = nl80211_policy,
9093 .flags = GENL_ADMIN_PERM,
9094 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9095 NL80211_FLAG_NEED_RTNL,
9098 .cmd = NL80211_CMD_NEW_INTERFACE,
9099 .doit = nl80211_new_interface,
9100 .policy = nl80211_policy,
9101 .flags = GENL_ADMIN_PERM,
9102 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9103 NL80211_FLAG_NEED_RTNL,
9106 .cmd = NL80211_CMD_DEL_INTERFACE,
9107 .doit = nl80211_del_interface,
9108 .policy = nl80211_policy,
9109 .flags = GENL_ADMIN_PERM,
9110 .internal_flags = NL80211_FLAG_NEED_WDEV |
9111 NL80211_FLAG_NEED_RTNL,
9114 .cmd = NL80211_CMD_GET_KEY,
9115 .doit = nl80211_get_key,
9116 .policy = nl80211_policy,
9117 .flags = GENL_ADMIN_PERM,
9118 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9119 NL80211_FLAG_NEED_RTNL,
9122 .cmd = NL80211_CMD_SET_KEY,
9123 .doit = nl80211_set_key,
9124 .policy = nl80211_policy,
9125 .flags = GENL_ADMIN_PERM,
9126 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9127 NL80211_FLAG_NEED_RTNL,
9130 .cmd = NL80211_CMD_NEW_KEY,
9131 .doit = nl80211_new_key,
9132 .policy = nl80211_policy,
9133 .flags = GENL_ADMIN_PERM,
9134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9135 NL80211_FLAG_NEED_RTNL,
9138 .cmd = NL80211_CMD_DEL_KEY,
9139 .doit = nl80211_del_key,
9140 .policy = nl80211_policy,
9141 .flags = GENL_ADMIN_PERM,
9142 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9143 NL80211_FLAG_NEED_RTNL,
9146 .cmd = NL80211_CMD_SET_BEACON,
9147 .policy = nl80211_policy,
9148 .flags = GENL_ADMIN_PERM,
9149 .doit = nl80211_set_beacon,
9150 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9151 NL80211_FLAG_NEED_RTNL,
9154 .cmd = NL80211_CMD_START_AP,
9155 .policy = nl80211_policy,
9156 .flags = GENL_ADMIN_PERM,
9157 .doit = nl80211_start_ap,
9158 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9159 NL80211_FLAG_NEED_RTNL,
9162 .cmd = NL80211_CMD_STOP_AP,
9163 .policy = nl80211_policy,
9164 .flags = GENL_ADMIN_PERM,
9165 .doit = nl80211_stop_ap,
9166 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9167 NL80211_FLAG_NEED_RTNL,
9170 .cmd = NL80211_CMD_GET_STATION,
9171 .doit = nl80211_get_station,
9172 .dumpit = nl80211_dump_station,
9173 .policy = nl80211_policy,
9174 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9175 NL80211_FLAG_NEED_RTNL,
9178 .cmd = NL80211_CMD_SET_STATION,
9179 .doit = nl80211_set_station,
9180 .policy = nl80211_policy,
9181 .flags = GENL_ADMIN_PERM,
9182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9183 NL80211_FLAG_NEED_RTNL,
9186 .cmd = NL80211_CMD_NEW_STATION,
9187 .doit = nl80211_new_station,
9188 .policy = nl80211_policy,
9189 .flags = GENL_ADMIN_PERM,
9190 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9191 NL80211_FLAG_NEED_RTNL,
9194 .cmd = NL80211_CMD_DEL_STATION,
9195 .doit = nl80211_del_station,
9196 .policy = nl80211_policy,
9197 .flags = GENL_ADMIN_PERM,
9198 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9199 NL80211_FLAG_NEED_RTNL,
9202 .cmd = NL80211_CMD_GET_MPATH,
9203 .doit = nl80211_get_mpath,
9204 .dumpit = nl80211_dump_mpath,
9205 .policy = nl80211_policy,
9206 .flags = GENL_ADMIN_PERM,
9207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9208 NL80211_FLAG_NEED_RTNL,
9211 .cmd = NL80211_CMD_SET_MPATH,
9212 .doit = nl80211_set_mpath,
9213 .policy = nl80211_policy,
9214 .flags = GENL_ADMIN_PERM,
9215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9216 NL80211_FLAG_NEED_RTNL,
9219 .cmd = NL80211_CMD_NEW_MPATH,
9220 .doit = nl80211_new_mpath,
9221 .policy = nl80211_policy,
9222 .flags = GENL_ADMIN_PERM,
9223 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9224 NL80211_FLAG_NEED_RTNL,
9227 .cmd = NL80211_CMD_DEL_MPATH,
9228 .doit = nl80211_del_mpath,
9229 .policy = nl80211_policy,
9230 .flags = GENL_ADMIN_PERM,
9231 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9232 NL80211_FLAG_NEED_RTNL,
9235 .cmd = NL80211_CMD_SET_BSS,
9236 .doit = nl80211_set_bss,
9237 .policy = nl80211_policy,
9238 .flags = GENL_ADMIN_PERM,
9239 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9240 NL80211_FLAG_NEED_RTNL,
9243 .cmd = NL80211_CMD_GET_REG,
9244 .doit = nl80211_get_reg,
9245 .policy = nl80211_policy,
9246 .internal_flags = NL80211_FLAG_NEED_RTNL,
9247 /* can be retrieved by unprivileged users */
9250 .cmd = NL80211_CMD_SET_REG,
9251 .doit = nl80211_set_reg,
9252 .policy = nl80211_policy,
9253 .flags = GENL_ADMIN_PERM,
9254 .internal_flags = NL80211_FLAG_NEED_RTNL,
9257 .cmd = NL80211_CMD_REQ_SET_REG,
9258 .doit = nl80211_req_set_reg,
9259 .policy = nl80211_policy,
9260 .flags = GENL_ADMIN_PERM,
9263 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9264 .doit = nl80211_get_mesh_config,
9265 .policy = nl80211_policy,
9266 /* can be retrieved by unprivileged users */
9267 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9268 NL80211_FLAG_NEED_RTNL,
9271 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9272 .doit = nl80211_update_mesh_config,
9273 .policy = nl80211_policy,
9274 .flags = GENL_ADMIN_PERM,
9275 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9276 NL80211_FLAG_NEED_RTNL,
9279 .cmd = NL80211_CMD_TRIGGER_SCAN,
9280 .doit = nl80211_trigger_scan,
9281 .policy = nl80211_policy,
9282 .flags = GENL_ADMIN_PERM,
9283 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9284 NL80211_FLAG_NEED_RTNL,
9287 .cmd = NL80211_CMD_GET_SCAN,
9288 .policy = nl80211_policy,
9289 .dumpit = nl80211_dump_scan,
9292 .cmd = NL80211_CMD_START_SCHED_SCAN,
9293 .doit = nl80211_start_sched_scan,
9294 .policy = nl80211_policy,
9295 .flags = GENL_ADMIN_PERM,
9296 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9297 NL80211_FLAG_NEED_RTNL,
9300 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9301 .doit = nl80211_stop_sched_scan,
9302 .policy = nl80211_policy,
9303 .flags = GENL_ADMIN_PERM,
9304 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9305 NL80211_FLAG_NEED_RTNL,
9308 .cmd = NL80211_CMD_AUTHENTICATE,
9309 .doit = nl80211_authenticate,
9310 .policy = nl80211_policy,
9311 .flags = GENL_ADMIN_PERM,
9312 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9313 NL80211_FLAG_NEED_RTNL,
9316 .cmd = NL80211_CMD_ASSOCIATE,
9317 .doit = nl80211_associate,
9318 .policy = nl80211_policy,
9319 .flags = GENL_ADMIN_PERM,
9320 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9321 NL80211_FLAG_NEED_RTNL,
9324 .cmd = NL80211_CMD_DEAUTHENTICATE,
9325 .doit = nl80211_deauthenticate,
9326 .policy = nl80211_policy,
9327 .flags = GENL_ADMIN_PERM,
9328 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9329 NL80211_FLAG_NEED_RTNL,
9332 .cmd = NL80211_CMD_DISASSOCIATE,
9333 .doit = nl80211_disassociate,
9334 .policy = nl80211_policy,
9335 .flags = GENL_ADMIN_PERM,
9336 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9337 NL80211_FLAG_NEED_RTNL,
9340 .cmd = NL80211_CMD_JOIN_IBSS,
9341 .doit = nl80211_join_ibss,
9342 .policy = nl80211_policy,
9343 .flags = GENL_ADMIN_PERM,
9344 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9345 NL80211_FLAG_NEED_RTNL,
9348 .cmd = NL80211_CMD_LEAVE_IBSS,
9349 .doit = nl80211_leave_ibss,
9350 .policy = nl80211_policy,
9351 .flags = GENL_ADMIN_PERM,
9352 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9353 NL80211_FLAG_NEED_RTNL,
9355 #ifdef CONFIG_NL80211_TESTMODE
9357 .cmd = NL80211_CMD_TESTMODE,
9358 .doit = nl80211_testmode_do,
9359 .dumpit = nl80211_testmode_dump,
9360 .policy = nl80211_policy,
9361 .flags = GENL_ADMIN_PERM,
9362 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9363 NL80211_FLAG_NEED_RTNL,
9367 .cmd = NL80211_CMD_CONNECT,
9368 .doit = nl80211_connect,
9369 .policy = nl80211_policy,
9370 .flags = GENL_ADMIN_PERM,
9371 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9372 NL80211_FLAG_NEED_RTNL,
9375 .cmd = NL80211_CMD_DISCONNECT,
9376 .doit = nl80211_disconnect,
9377 .policy = nl80211_policy,
9378 .flags = GENL_ADMIN_PERM,
9379 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9380 NL80211_FLAG_NEED_RTNL,
9383 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9384 .doit = nl80211_wiphy_netns,
9385 .policy = nl80211_policy,
9386 .flags = GENL_ADMIN_PERM,
9387 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9388 NL80211_FLAG_NEED_RTNL,
9391 .cmd = NL80211_CMD_GET_SURVEY,
9392 .policy = nl80211_policy,
9393 .dumpit = nl80211_dump_survey,
9396 .cmd = NL80211_CMD_SET_PMKSA,
9397 .doit = nl80211_setdel_pmksa,
9398 .policy = nl80211_policy,
9399 .flags = GENL_ADMIN_PERM,
9400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9401 NL80211_FLAG_NEED_RTNL,
9404 .cmd = NL80211_CMD_DEL_PMKSA,
9405 .doit = nl80211_setdel_pmksa,
9406 .policy = nl80211_policy,
9407 .flags = GENL_ADMIN_PERM,
9408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9409 NL80211_FLAG_NEED_RTNL,
9412 .cmd = NL80211_CMD_FLUSH_PMKSA,
9413 .doit = nl80211_flush_pmksa,
9414 .policy = nl80211_policy,
9415 .flags = GENL_ADMIN_PERM,
9416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9417 NL80211_FLAG_NEED_RTNL,
9420 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9421 .doit = nl80211_remain_on_channel,
9422 .policy = nl80211_policy,
9423 .flags = GENL_ADMIN_PERM,
9424 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9425 NL80211_FLAG_NEED_RTNL,
9428 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9429 .doit = nl80211_cancel_remain_on_channel,
9430 .policy = nl80211_policy,
9431 .flags = GENL_ADMIN_PERM,
9432 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9433 NL80211_FLAG_NEED_RTNL,
9436 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9437 .doit = nl80211_set_tx_bitrate_mask,
9438 .policy = nl80211_policy,
9439 .flags = GENL_ADMIN_PERM,
9440 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9441 NL80211_FLAG_NEED_RTNL,
9444 .cmd = NL80211_CMD_REGISTER_FRAME,
9445 .doit = nl80211_register_mgmt,
9446 .policy = nl80211_policy,
9447 .flags = GENL_ADMIN_PERM,
9448 .internal_flags = NL80211_FLAG_NEED_WDEV |
9449 NL80211_FLAG_NEED_RTNL,
9452 .cmd = NL80211_CMD_FRAME,
9453 .doit = nl80211_tx_mgmt,
9454 .policy = nl80211_policy,
9455 .flags = GENL_ADMIN_PERM,
9456 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9457 NL80211_FLAG_NEED_RTNL,
9460 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9461 .doit = nl80211_tx_mgmt_cancel_wait,
9462 .policy = nl80211_policy,
9463 .flags = GENL_ADMIN_PERM,
9464 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9465 NL80211_FLAG_NEED_RTNL,
9468 .cmd = NL80211_CMD_SET_POWER_SAVE,
9469 .doit = nl80211_set_power_save,
9470 .policy = nl80211_policy,
9471 .flags = GENL_ADMIN_PERM,
9472 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9473 NL80211_FLAG_NEED_RTNL,
9476 .cmd = NL80211_CMD_GET_POWER_SAVE,
9477 .doit = nl80211_get_power_save,
9478 .policy = nl80211_policy,
9479 /* can be retrieved by unprivileged users */
9480 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9481 NL80211_FLAG_NEED_RTNL,
9484 .cmd = NL80211_CMD_SET_CQM,
9485 .doit = nl80211_set_cqm,
9486 .policy = nl80211_policy,
9487 .flags = GENL_ADMIN_PERM,
9488 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9489 NL80211_FLAG_NEED_RTNL,
9492 .cmd = NL80211_CMD_SET_CHANNEL,
9493 .doit = nl80211_set_channel,
9494 .policy = nl80211_policy,
9495 .flags = GENL_ADMIN_PERM,
9496 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9497 NL80211_FLAG_NEED_RTNL,
9500 .cmd = NL80211_CMD_SET_WDS_PEER,
9501 .doit = nl80211_set_wds_peer,
9502 .policy = nl80211_policy,
9503 .flags = GENL_ADMIN_PERM,
9504 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9505 NL80211_FLAG_NEED_RTNL,
9508 .cmd = NL80211_CMD_JOIN_MESH,
9509 .doit = nl80211_join_mesh,
9510 .policy = nl80211_policy,
9511 .flags = GENL_ADMIN_PERM,
9512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9513 NL80211_FLAG_NEED_RTNL,
9516 .cmd = NL80211_CMD_LEAVE_MESH,
9517 .doit = nl80211_leave_mesh,
9518 .policy = nl80211_policy,
9519 .flags = GENL_ADMIN_PERM,
9520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9521 NL80211_FLAG_NEED_RTNL,
9525 .cmd = NL80211_CMD_GET_WOWLAN,
9526 .doit = nl80211_get_wowlan,
9527 .policy = nl80211_policy,
9528 /* can be retrieved by unprivileged users */
9529 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9530 NL80211_FLAG_NEED_RTNL,
9533 .cmd = NL80211_CMD_SET_WOWLAN,
9534 .doit = nl80211_set_wowlan,
9535 .policy = nl80211_policy,
9536 .flags = GENL_ADMIN_PERM,
9537 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9538 NL80211_FLAG_NEED_RTNL,
9542 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9543 .doit = nl80211_set_rekey_data,
9544 .policy = nl80211_policy,
9545 .flags = GENL_ADMIN_PERM,
9546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9547 NL80211_FLAG_NEED_RTNL,
9550 .cmd = NL80211_CMD_TDLS_MGMT,
9551 .doit = nl80211_tdls_mgmt,
9552 .policy = nl80211_policy,
9553 .flags = GENL_ADMIN_PERM,
9554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9555 NL80211_FLAG_NEED_RTNL,
9558 .cmd = NL80211_CMD_TDLS_OPER,
9559 .doit = nl80211_tdls_oper,
9560 .policy = nl80211_policy,
9561 .flags = GENL_ADMIN_PERM,
9562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9563 NL80211_FLAG_NEED_RTNL,
9566 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9567 .doit = nl80211_register_unexpected_frame,
9568 .policy = nl80211_policy,
9569 .flags = GENL_ADMIN_PERM,
9570 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9571 NL80211_FLAG_NEED_RTNL,
9574 .cmd = NL80211_CMD_PROBE_CLIENT,
9575 .doit = nl80211_probe_client,
9576 .policy = nl80211_policy,
9577 .flags = GENL_ADMIN_PERM,
9578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9579 NL80211_FLAG_NEED_RTNL,
9582 .cmd = NL80211_CMD_REGISTER_BEACONS,
9583 .doit = nl80211_register_beacons,
9584 .policy = nl80211_policy,
9585 .flags = GENL_ADMIN_PERM,
9586 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9587 NL80211_FLAG_NEED_RTNL,
9590 .cmd = NL80211_CMD_SET_NOACK_MAP,
9591 .doit = nl80211_set_noack_map,
9592 .policy = nl80211_policy,
9593 .flags = GENL_ADMIN_PERM,
9594 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9595 NL80211_FLAG_NEED_RTNL,
9598 .cmd = NL80211_CMD_START_P2P_DEVICE,
9599 .doit = nl80211_start_p2p_device,
9600 .policy = nl80211_policy,
9601 .flags = GENL_ADMIN_PERM,
9602 .internal_flags = NL80211_FLAG_NEED_WDEV |
9603 NL80211_FLAG_NEED_RTNL,
9606 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9607 .doit = nl80211_stop_p2p_device,
9608 .policy = nl80211_policy,
9609 .flags = GENL_ADMIN_PERM,
9610 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9611 NL80211_FLAG_NEED_RTNL,
9614 .cmd = NL80211_CMD_SET_MCAST_RATE,
9615 .doit = nl80211_set_mcast_rate,
9616 .policy = nl80211_policy,
9617 .flags = GENL_ADMIN_PERM,
9618 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9619 NL80211_FLAG_NEED_RTNL,
9622 .cmd = NL80211_CMD_SET_MAC_ACL,
9623 .doit = nl80211_set_mac_acl,
9624 .policy = nl80211_policy,
9625 .flags = GENL_ADMIN_PERM,
9626 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9627 NL80211_FLAG_NEED_RTNL,
9630 .cmd = NL80211_CMD_RADAR_DETECT,
9631 .doit = nl80211_start_radar_detection,
9632 .policy = nl80211_policy,
9633 .flags = GENL_ADMIN_PERM,
9634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9635 NL80211_FLAG_NEED_RTNL,
9638 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9639 .doit = nl80211_get_protocol_features,
9640 .policy = nl80211_policy,
9643 .cmd = NL80211_CMD_UPDATE_FT_IES,
9644 .doit = nl80211_update_ft_ies,
9645 .policy = nl80211_policy,
9646 .flags = GENL_ADMIN_PERM,
9647 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9648 NL80211_FLAG_NEED_RTNL,
9651 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9652 .doit = nl80211_crit_protocol_start,
9653 .policy = nl80211_policy,
9654 .flags = GENL_ADMIN_PERM,
9655 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9656 NL80211_FLAG_NEED_RTNL,
9659 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9660 .doit = nl80211_crit_protocol_stop,
9661 .policy = nl80211_policy,
9662 .flags = GENL_ADMIN_PERM,
9663 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9664 NL80211_FLAG_NEED_RTNL,
9667 .cmd = NL80211_CMD_GET_COALESCE,
9668 .doit = nl80211_get_coalesce,
9669 .policy = nl80211_policy,
9670 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9671 NL80211_FLAG_NEED_RTNL,
9674 .cmd = NL80211_CMD_SET_COALESCE,
9675 .doit = nl80211_set_coalesce,
9676 .policy = nl80211_policy,
9677 .flags = GENL_ADMIN_PERM,
9678 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9679 NL80211_FLAG_NEED_RTNL,
9682 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9683 .doit = nl80211_channel_switch,
9684 .policy = nl80211_policy,
9685 .flags = GENL_ADMIN_PERM,
9686 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9687 NL80211_FLAG_NEED_RTNL,
9690 .cmd = NL80211_CMD_VENDOR,
9691 .doit = nl80211_vendor_cmd,
9692 .policy = nl80211_policy,
9693 .flags = GENL_ADMIN_PERM,
9694 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9695 NL80211_FLAG_NEED_RTNL,
9699 static struct genl_multicast_group nl80211_mlme_mcgrp = {
9703 /* multicast groups */
9704 static struct genl_multicast_group nl80211_config_mcgrp = {
9707 static struct genl_multicast_group nl80211_scan_mcgrp = {
9710 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9711 .name = "regulatory",
9714 /* notification functions */
9716 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9718 struct sk_buff *msg;
9719 struct nl80211_dump_wiphy_state state = {};
9721 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9725 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
9730 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9731 nl80211_config_mcgrp.id, GFP_KERNEL);
9734 static int nl80211_add_scan_req(struct sk_buff *msg,
9735 struct cfg80211_registered_device *rdev)
9737 struct cfg80211_scan_request *req = rdev->scan_req;
9738 struct nlattr *nest;
9744 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9746 goto nla_put_failure;
9747 for (i = 0; i < req->n_ssids; i++) {
9748 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9749 goto nla_put_failure;
9751 nla_nest_end(msg, nest);
9753 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9755 goto nla_put_failure;
9756 for (i = 0; i < req->n_channels; i++) {
9757 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9758 goto nla_put_failure;
9760 nla_nest_end(msg, nest);
9763 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9764 goto nla_put_failure;
9767 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9774 static int nl80211_send_scan_msg(struct sk_buff *msg,
9775 struct cfg80211_registered_device *rdev,
9776 struct wireless_dev *wdev,
9777 u32 portid, u32 seq, int flags,
9782 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9786 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9787 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9788 wdev->netdev->ifindex)) ||
9789 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9790 goto nla_put_failure;
9792 /* ignore errors and send incomplete event anyway */
9793 nl80211_add_scan_req(msg, rdev);
9795 return genlmsg_end(msg, hdr);
9798 genlmsg_cancel(msg, hdr);
9803 nl80211_send_sched_scan_msg(struct sk_buff *msg,
9804 struct cfg80211_registered_device *rdev,
9805 struct net_device *netdev,
9806 u32 portid, u32 seq, int flags, u32 cmd)
9810 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9814 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9815 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9816 goto nla_put_failure;
9818 return genlmsg_end(msg, hdr);
9821 genlmsg_cancel(msg, hdr);
9825 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
9826 struct wireless_dev *wdev)
9828 struct sk_buff *msg;
9830 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9834 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9835 NL80211_CMD_TRIGGER_SCAN) < 0) {
9840 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9841 nl80211_scan_mcgrp.id, GFP_KERNEL);
9844 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
9845 struct wireless_dev *wdev)
9847 struct sk_buff *msg;
9849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9853 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9854 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
9859 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9860 nl80211_scan_mcgrp.id, GFP_KERNEL);
9863 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
9864 struct wireless_dev *wdev)
9866 struct sk_buff *msg;
9868 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9872 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9873 NL80211_CMD_SCAN_ABORTED) < 0) {
9878 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9879 nl80211_scan_mcgrp.id, GFP_KERNEL);
9882 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9883 struct net_device *netdev)
9885 struct sk_buff *msg;
9887 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9891 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9892 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9897 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9898 nl80211_scan_mcgrp.id, GFP_KERNEL);
9901 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9902 struct net_device *netdev, u32 cmd)
9904 struct sk_buff *msg;
9906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9910 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9915 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9916 nl80211_scan_mcgrp.id, GFP_KERNEL);
9920 * This can happen on global regulatory changes or device specific settings
9921 * based on custom world regulatory domains.
9923 void nl80211_send_reg_change_event(struct regulatory_request *request)
9925 struct sk_buff *msg;
9928 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9932 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9938 /* Userspace can always count this one always being set */
9939 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9940 goto nla_put_failure;
9942 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9943 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9944 NL80211_REGDOM_TYPE_WORLD))
9945 goto nla_put_failure;
9946 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9947 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9948 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9949 goto nla_put_failure;
9950 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9951 request->intersect) {
9952 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9953 NL80211_REGDOM_TYPE_INTERSECTION))
9954 goto nla_put_failure;
9956 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9957 NL80211_REGDOM_TYPE_COUNTRY) ||
9958 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9960 goto nla_put_failure;
9963 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9964 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9965 goto nla_put_failure;
9967 genlmsg_end(msg, hdr);
9970 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9977 genlmsg_cancel(msg, hdr);
9981 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9982 struct net_device *netdev,
9983 const u8 *buf, size_t len,
9984 enum nl80211_commands cmd, gfp_t gfp)
9986 struct sk_buff *msg;
9989 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9993 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9999 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10000 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10001 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10002 goto nla_put_failure;
10004 genlmsg_end(msg, hdr);
10006 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10007 nl80211_mlme_mcgrp.id, gfp);
10011 genlmsg_cancel(msg, hdr);
10015 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
10016 struct net_device *netdev, const u8 *buf,
10017 size_t len, gfp_t gfp)
10019 nl80211_send_mlme_event(rdev, netdev, buf, len,
10020 NL80211_CMD_AUTHENTICATE, gfp);
10023 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10024 struct net_device *netdev, const u8 *buf,
10025 size_t len, gfp_t gfp)
10027 nl80211_send_mlme_event(rdev, netdev, buf, len,
10028 NL80211_CMD_ASSOCIATE, gfp);
10031 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
10032 struct net_device *netdev, const u8 *buf,
10033 size_t len, gfp_t gfp)
10035 nl80211_send_mlme_event(rdev, netdev, buf, len,
10036 NL80211_CMD_DEAUTHENTICATE, gfp);
10039 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10040 struct net_device *netdev, const u8 *buf,
10041 size_t len, gfp_t gfp)
10043 nl80211_send_mlme_event(rdev, netdev, buf, len,
10044 NL80211_CMD_DISASSOCIATE, gfp);
10047 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10050 struct wireless_dev *wdev = dev->ieee80211_ptr;
10051 struct wiphy *wiphy = wdev->wiphy;
10052 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10053 const struct ieee80211_mgmt *mgmt = (void *)buf;
10056 if (WARN_ON(len < 2))
10059 if (ieee80211_is_deauth(mgmt->frame_control))
10060 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10062 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
10064 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10065 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
10067 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
10069 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10070 struct net_device *netdev, int cmd,
10071 const u8 *addr, gfp_t gfp)
10073 struct sk_buff *msg;
10076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10080 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10086 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10087 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10088 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10089 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10090 goto nla_put_failure;
10092 genlmsg_end(msg, hdr);
10094 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10095 nl80211_mlme_mcgrp.id, gfp);
10099 genlmsg_cancel(msg, hdr);
10103 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
10104 struct net_device *netdev, const u8 *addr,
10107 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
10111 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
10112 struct net_device *netdev, const u8 *addr,
10115 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10119 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10120 struct net_device *netdev, const u8 *bssid,
10121 const u8 *req_ie, size_t req_ie_len,
10122 const u8 *resp_ie, size_t resp_ie_len,
10123 u16 status, gfp_t gfp)
10125 struct sk_buff *msg;
10128 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10132 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10138 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10139 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10140 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10141 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10143 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10145 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10146 goto nla_put_failure;
10148 genlmsg_end(msg, hdr);
10150 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10151 nl80211_mlme_mcgrp.id, gfp);
10155 genlmsg_cancel(msg, hdr);
10160 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10161 struct net_device *netdev, const u8 *bssid,
10162 const u8 *req_ie, size_t req_ie_len,
10163 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10165 struct sk_buff *msg;
10168 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10172 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10178 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10179 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10180 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10182 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10184 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10185 goto nla_put_failure;
10187 genlmsg_end(msg, hdr);
10189 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10190 nl80211_mlme_mcgrp.id, gfp);
10194 genlmsg_cancel(msg, hdr);
10199 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10200 struct net_device *netdev, u16 reason,
10201 const u8 *ie, size_t ie_len, bool from_ap)
10203 struct sk_buff *msg;
10206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10210 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10216 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10217 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10218 (from_ap && reason &&
10219 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10221 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10222 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10223 goto nla_put_failure;
10225 genlmsg_end(msg, hdr);
10227 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10228 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10232 genlmsg_cancel(msg, hdr);
10237 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10238 struct net_device *netdev, const u8 *bssid,
10241 struct sk_buff *msg;
10244 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10248 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10254 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10255 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10256 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10257 goto nla_put_failure;
10259 genlmsg_end(msg, hdr);
10261 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10262 nl80211_mlme_mcgrp.id, gfp);
10266 genlmsg_cancel(msg, hdr);
10270 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10271 const u8* ie, u8 ie_len, gfp_t gfp)
10273 struct wireless_dev *wdev = dev->ieee80211_ptr;
10274 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10275 struct sk_buff *msg;
10278 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10281 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10283 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10287 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10293 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10294 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10295 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10297 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10298 goto nla_put_failure;
10300 genlmsg_end(msg, hdr);
10302 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10303 nl80211_mlme_mcgrp.id, gfp);
10307 genlmsg_cancel(msg, hdr);
10310 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
10312 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10313 struct net_device *netdev, const u8 *addr,
10314 enum nl80211_key_type key_type, int key_id,
10315 const u8 *tsc, gfp_t gfp)
10317 struct sk_buff *msg;
10320 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10331 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10332 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10333 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10335 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10336 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10337 goto nla_put_failure;
10339 genlmsg_end(msg, hdr);
10341 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10342 nl80211_mlme_mcgrp.id, gfp);
10346 genlmsg_cancel(msg, hdr);
10350 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10351 struct ieee80211_channel *channel_before,
10352 struct ieee80211_channel *channel_after)
10354 struct sk_buff *msg;
10356 struct nlattr *nl_freq;
10358 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
10362 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10369 * Since we are applying the beacon hint to a wiphy we know its
10370 * wiphy_idx is valid
10372 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10373 goto nla_put_failure;
10376 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10378 goto nla_put_failure;
10379 if (nl80211_msg_put_channel(msg, channel_before, false))
10380 goto nla_put_failure;
10381 nla_nest_end(msg, nl_freq);
10384 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10386 goto nla_put_failure;
10387 if (nl80211_msg_put_channel(msg, channel_after, false))
10388 goto nla_put_failure;
10389 nla_nest_end(msg, nl_freq);
10391 genlmsg_end(msg, hdr);
10394 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
10401 genlmsg_cancel(msg, hdr);
10405 static void nl80211_send_remain_on_chan_event(
10406 int cmd, struct cfg80211_registered_device *rdev,
10407 struct wireless_dev *wdev, u64 cookie,
10408 struct ieee80211_channel *chan,
10409 unsigned int duration, gfp_t gfp)
10411 struct sk_buff *msg;
10414 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10418 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10424 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10425 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10426 wdev->netdev->ifindex)) ||
10427 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10428 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
10429 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10430 NL80211_CHAN_NO_HT) ||
10431 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10432 goto nla_put_failure;
10434 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10435 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10436 goto nla_put_failure;
10438 genlmsg_end(msg, hdr);
10440 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10441 nl80211_mlme_mcgrp.id, gfp);
10445 genlmsg_cancel(msg, hdr);
10449 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10450 struct ieee80211_channel *chan,
10451 unsigned int duration, gfp_t gfp)
10453 struct wiphy *wiphy = wdev->wiphy;
10454 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10456 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
10457 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
10458 rdev, wdev, cookie, chan,
10461 EXPORT_SYMBOL(cfg80211_ready_on_channel);
10463 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10464 struct ieee80211_channel *chan,
10467 struct wiphy *wiphy = wdev->wiphy;
10468 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10470 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
10471 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10472 rdev, wdev, cookie, chan, 0, gfp);
10474 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
10476 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10477 struct station_info *sinfo, gfp_t gfp)
10479 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10480 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10481 struct sk_buff *msg;
10483 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10485 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10489 if (nl80211_send_station(msg, 0, 0, 0,
10490 rdev, dev, mac_addr, sinfo) < 0) {
10495 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10496 nl80211_mlme_mcgrp.id, gfp);
10498 EXPORT_SYMBOL(cfg80211_new_sta);
10500 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
10502 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10503 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10504 struct sk_buff *msg;
10507 trace_cfg80211_del_sta(dev, mac_addr);
10509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10513 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10519 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10520 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10521 goto nla_put_failure;
10523 genlmsg_end(msg, hdr);
10525 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10526 nl80211_mlme_mcgrp.id, gfp);
10530 genlmsg_cancel(msg, hdr);
10533 EXPORT_SYMBOL(cfg80211_del_sta);
10535 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10536 enum nl80211_connect_failed_reason reason,
10539 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10540 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10541 struct sk_buff *msg;
10544 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10548 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10554 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10555 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10556 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10557 goto nla_put_failure;
10559 genlmsg_end(msg, hdr);
10561 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10562 nl80211_mlme_mcgrp.id, gfp);
10566 genlmsg_cancel(msg, hdr);
10569 EXPORT_SYMBOL(cfg80211_conn_failed);
10571 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10572 const u8 *addr, gfp_t gfp)
10574 struct wireless_dev *wdev = dev->ieee80211_ptr;
10575 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10576 struct sk_buff *msg;
10578 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
10583 msg = nlmsg_new(100, gfp);
10587 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10593 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10594 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10595 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10596 goto nla_put_failure;
10598 genlmsg_end(msg, hdr);
10599 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10603 genlmsg_cancel(msg, hdr);
10608 bool cfg80211_rx_spurious_frame(struct net_device *dev,
10609 const u8 *addr, gfp_t gfp)
10611 struct wireless_dev *wdev = dev->ieee80211_ptr;
10614 trace_cfg80211_rx_spurious_frame(dev, addr);
10616 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10617 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10618 trace_cfg80211_return_bool(false);
10621 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10623 trace_cfg80211_return_bool(ret);
10626 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
10628 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10629 const u8 *addr, gfp_t gfp)
10631 struct wireless_dev *wdev = dev->ieee80211_ptr;
10634 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10636 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10637 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10638 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10639 trace_cfg80211_return_bool(false);
10642 ret = __nl80211_unexpected_frame(dev,
10643 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10645 trace_cfg80211_return_bool(ret);
10648 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
10650 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
10651 struct wireless_dev *wdev, u32 nlportid,
10652 int freq, int sig_dbm,
10653 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
10655 struct net_device *netdev = wdev->netdev;
10656 struct sk_buff *msg;
10659 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10663 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10669 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10670 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10671 netdev->ifindex)) ||
10672 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10673 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10675 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10676 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10678 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
10679 goto nla_put_failure;
10681 genlmsg_end(msg, hdr);
10683 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10686 genlmsg_cancel(msg, hdr);
10691 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10692 const u8 *buf, size_t len, bool ack, gfp_t gfp)
10694 struct wiphy *wiphy = wdev->wiphy;
10695 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10696 struct net_device *netdev = wdev->netdev;
10697 struct sk_buff *msg;
10700 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10706 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
10712 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10713 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10714 netdev->ifindex)) ||
10715 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10716 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10717 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10718 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10719 goto nla_put_failure;
10721 genlmsg_end(msg, hdr);
10723 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10724 nl80211_mlme_mcgrp.id, gfp);
10728 genlmsg_cancel(msg, hdr);
10731 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
10733 void cfg80211_cqm_rssi_notify(struct net_device *dev,
10734 enum nl80211_cqm_rssi_threshold_event rssi_event,
10737 struct wireless_dev *wdev = dev->ieee80211_ptr;
10738 struct wiphy *wiphy = wdev->wiphy;
10739 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10740 struct sk_buff *msg;
10741 struct nlattr *pinfoattr;
10744 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10746 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10750 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10756 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10757 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
10758 goto nla_put_failure;
10760 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10762 goto nla_put_failure;
10764 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10766 goto nla_put_failure;
10768 nla_nest_end(msg, pinfoattr);
10770 genlmsg_end(msg, hdr);
10772 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10773 nl80211_mlme_mcgrp.id, gfp);
10777 genlmsg_cancel(msg, hdr);
10780 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
10782 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10783 struct net_device *netdev, const u8 *bssid,
10784 const u8 *replay_ctr, gfp_t gfp)
10786 struct sk_buff *msg;
10787 struct nlattr *rekey_attr;
10790 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10794 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10800 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10801 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10802 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10803 goto nla_put_failure;
10805 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10807 goto nla_put_failure;
10809 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10810 NL80211_REPLAY_CTR_LEN, replay_ctr))
10811 goto nla_put_failure;
10813 nla_nest_end(msg, rekey_attr);
10815 genlmsg_end(msg, hdr);
10817 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10818 nl80211_mlme_mcgrp.id, gfp);
10822 genlmsg_cancel(msg, hdr);
10826 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10827 const u8 *replay_ctr, gfp_t gfp)
10829 struct wireless_dev *wdev = dev->ieee80211_ptr;
10830 struct wiphy *wiphy = wdev->wiphy;
10831 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10833 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10834 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10836 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10839 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10840 struct net_device *netdev, int index,
10841 const u8 *bssid, bool preauth, gfp_t gfp)
10843 struct sk_buff *msg;
10844 struct nlattr *attr;
10847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10851 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10857 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10858 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10859 goto nla_put_failure;
10861 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10863 goto nla_put_failure;
10865 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10866 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10868 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10869 goto nla_put_failure;
10871 nla_nest_end(msg, attr);
10873 genlmsg_end(msg, hdr);
10875 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10876 nl80211_mlme_mcgrp.id, gfp);
10880 genlmsg_cancel(msg, hdr);
10884 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10885 const u8 *bssid, bool preauth, gfp_t gfp)
10887 struct wireless_dev *wdev = dev->ieee80211_ptr;
10888 struct wiphy *wiphy = wdev->wiphy;
10889 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10891 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10892 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10894 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10896 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10897 struct net_device *netdev,
10898 struct cfg80211_chan_def *chandef,
10901 struct sk_buff *msg;
10904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10908 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10914 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10915 goto nla_put_failure;
10917 if (nl80211_send_chandef(msg, chandef))
10918 goto nla_put_failure;
10920 genlmsg_end(msg, hdr);
10922 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10923 nl80211_mlme_mcgrp.id, gfp);
10927 genlmsg_cancel(msg, hdr);
10931 void cfg80211_ch_switch_notify(struct net_device *dev,
10932 struct cfg80211_chan_def *chandef)
10934 struct wireless_dev *wdev = dev->ieee80211_ptr;
10935 struct wiphy *wiphy = wdev->wiphy;
10936 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10938 ASSERT_WDEV_LOCK(wdev);
10940 trace_cfg80211_ch_switch_notify(dev, chandef);
10942 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10943 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10944 wdev->iftype != NL80211_IFTYPE_ADHOC &&
10945 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10948 wdev->channel = chandef->chan;
10949 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10951 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10953 void cfg80211_cqm_txe_notify(struct net_device *dev,
10954 const u8 *peer, u32 num_packets,
10955 u32 rate, u32 intvl, gfp_t gfp)
10957 struct wireless_dev *wdev = dev->ieee80211_ptr;
10958 struct wiphy *wiphy = wdev->wiphy;
10959 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10960 struct sk_buff *msg;
10961 struct nlattr *pinfoattr;
10964 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10968 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10974 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10975 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10976 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10977 goto nla_put_failure;
10979 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10981 goto nla_put_failure;
10983 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10984 goto nla_put_failure;
10986 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10987 goto nla_put_failure;
10989 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10990 goto nla_put_failure;
10992 nla_nest_end(msg, pinfoattr);
10994 genlmsg_end(msg, hdr);
10996 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10997 nl80211_mlme_mcgrp.id, gfp);
11001 genlmsg_cancel(msg, hdr);
11004 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11007 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
11008 const struct cfg80211_chan_def *chandef,
11009 enum nl80211_radar_event event,
11010 struct net_device *netdev, gfp_t gfp)
11012 struct sk_buff *msg;
11015 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11019 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11025 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11026 goto nla_put_failure;
11028 /* NOP and radar events don't need a netdev parameter */
11030 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11032 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11033 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11034 goto nla_put_failure;
11037 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11038 goto nla_put_failure;
11040 if (nl80211_send_chandef(msg, chandef))
11041 goto nla_put_failure;
11043 genlmsg_end(msg, hdr);
11045 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11046 nl80211_mlme_mcgrp.id, gfp);
11050 genlmsg_cancel(msg, hdr);
11054 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11055 const u8 *peer, u32 num_packets, gfp_t gfp)
11057 struct wireless_dev *wdev = dev->ieee80211_ptr;
11058 struct wiphy *wiphy = wdev->wiphy;
11059 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11060 struct sk_buff *msg;
11061 struct nlattr *pinfoattr;
11064 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11066 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11070 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11076 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11077 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11078 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11079 goto nla_put_failure;
11081 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11083 goto nla_put_failure;
11085 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11086 goto nla_put_failure;
11088 nla_nest_end(msg, pinfoattr);
11090 genlmsg_end(msg, hdr);
11092 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11093 nl80211_mlme_mcgrp.id, gfp);
11097 genlmsg_cancel(msg, hdr);
11100 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11102 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11103 u64 cookie, bool acked, gfp_t gfp)
11105 struct wireless_dev *wdev = dev->ieee80211_ptr;
11106 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11107 struct sk_buff *msg;
11110 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11112 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11117 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11123 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11124 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11125 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11126 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11127 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11128 goto nla_put_failure;
11130 genlmsg_end(msg, hdr);
11132 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11133 nl80211_mlme_mcgrp.id, gfp);
11137 genlmsg_cancel(msg, hdr);
11140 EXPORT_SYMBOL(cfg80211_probe_status);
11142 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11143 const u8 *frame, size_t len,
11144 int freq, int sig_dbm)
11146 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11147 struct sk_buff *msg;
11149 struct cfg80211_beacon_registration *reg;
11151 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11153 spin_lock_bh(&rdev->beacon_registrations_lock);
11154 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11155 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11157 spin_unlock_bh(&rdev->beacon_registrations_lock);
11161 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11163 goto nla_put_failure;
11165 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11167 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11169 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11170 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11171 goto nla_put_failure;
11173 genlmsg_end(msg, hdr);
11175 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11177 spin_unlock_bh(&rdev->beacon_registrations_lock);
11181 spin_unlock_bh(&rdev->beacon_registrations_lock);
11183 genlmsg_cancel(msg, hdr);
11186 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11189 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11190 struct cfg80211_wowlan_wakeup *wakeup,
11193 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11194 struct sk_buff *msg;
11198 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11201 size += wakeup->packet_present_len;
11203 msg = nlmsg_new(size, gfp);
11207 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11211 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11212 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11215 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11216 wdev->netdev->ifindex))
11220 struct nlattr *reasons;
11222 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11224 if (wakeup->disconnect &&
11225 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11227 if (wakeup->magic_pkt &&
11228 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11230 if (wakeup->gtk_rekey_failure &&
11231 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11233 if (wakeup->eap_identity_req &&
11234 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11236 if (wakeup->four_way_handshake &&
11237 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11239 if (wakeup->rfkill_release &&
11240 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11243 if (wakeup->pattern_idx >= 0 &&
11244 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11245 wakeup->pattern_idx))
11248 if (wakeup->tcp_match)
11249 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
11251 if (wakeup->tcp_connlost)
11253 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
11255 if (wakeup->tcp_nomoretokens)
11257 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
11259 if (wakeup->packet) {
11260 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11261 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11263 if (!wakeup->packet_80211) {
11265 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11267 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11270 if (wakeup->packet_len &&
11271 nla_put_u32(msg, len_attr, wakeup->packet_len))
11274 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11279 nla_nest_end(msg, reasons);
11282 genlmsg_end(msg, hdr);
11284 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11285 nl80211_mlme_mcgrp.id, gfp);
11291 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11294 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11295 enum nl80211_tdls_operation oper,
11296 u16 reason_code, gfp_t gfp)
11298 struct wireless_dev *wdev = dev->ieee80211_ptr;
11299 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11300 struct sk_buff *msg;
11303 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11310 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11317 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11318 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11319 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11320 (reason_code > 0 &&
11321 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11322 goto nla_put_failure;
11324 genlmsg_end(msg, hdr);
11326 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11327 nl80211_mlme_mcgrp.id, gfp);
11331 genlmsg_cancel(msg, hdr);
11334 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11336 static int nl80211_netlink_notify(struct notifier_block * nb,
11337 unsigned long state,
11340 struct netlink_notify *notify = _notify;
11341 struct cfg80211_registered_device *rdev;
11342 struct wireless_dev *wdev;
11343 struct cfg80211_beacon_registration *reg, *tmp;
11345 if (state != NETLINK_URELEASE)
11346 return NOTIFY_DONE;
11350 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
11351 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
11352 cfg80211_mlme_unregister_socket(wdev, notify->portid);
11354 spin_lock_bh(&rdev->beacon_registrations_lock);
11355 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11357 if (reg->nlportid == notify->portid) {
11358 list_del(®->list);
11363 spin_unlock_bh(&rdev->beacon_registrations_lock);
11368 return NOTIFY_DONE;
11371 static struct notifier_block nl80211_netlink_notifier = {
11372 .notifier_call = nl80211_netlink_notify,
11375 void cfg80211_ft_event(struct net_device *netdev,
11376 struct cfg80211_ft_event_params *ft_event)
11378 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11379 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11380 struct sk_buff *msg;
11383 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11385 if (!ft_event->target_ap)
11388 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11392 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11398 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
11399 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
11400 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
11402 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
11403 if (ft_event->ric_ies)
11404 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11405 ft_event->ric_ies);
11407 genlmsg_end(msg, hdr);
11409 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
11410 nl80211_mlme_mcgrp.id, GFP_KERNEL);
11412 EXPORT_SYMBOL(cfg80211_ft_event);
11414 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11416 struct cfg80211_registered_device *rdev;
11417 struct sk_buff *msg;
11421 rdev = wiphy_to_dev(wdev->wiphy);
11422 if (!rdev->crit_proto_nlportid)
11425 nlportid = rdev->crit_proto_nlportid;
11426 rdev->crit_proto_nlportid = 0;
11428 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11432 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11434 goto nla_put_failure;
11436 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11437 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11438 goto nla_put_failure;
11440 genlmsg_end(msg, hdr);
11442 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11447 genlmsg_cancel(msg, hdr);
11451 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11453 /* initialisation/exit functions */
11455 int nl80211_init(void)
11459 err = genl_register_family_with_ops(&nl80211_fam,
11460 nl80211_ops, ARRAY_SIZE(nl80211_ops));
11464 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
11468 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
11472 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
11476 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
11480 #ifdef CONFIG_NL80211_TESTMODE
11481 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
11486 err = netlink_register_notifier(&nl80211_netlink_notifier);
11492 genl_unregister_family(&nl80211_fam);
11496 void nl80211_exit(void)
11498 netlink_unregister_notifier(&nl80211_netlink_notifier);
11499 genl_unregister_family(&nl80211_fam);