2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
6 * Copyright 2015-2017 Intel Deutschland GmbH
10 #include <linux/module.h>
11 #include <linux/err.h>
12 #include <linux/slab.h>
13 #include <linux/list.h>
14 #include <linux/if_ether.h>
15 #include <linux/ieee80211.h>
16 #include <linux/nl80211.h>
17 #include <linux/rtnetlink.h>
18 #include <linux/netlink.h>
19 #include <linux/etherdevice.h>
20 #include <net/net_namespace.h>
21 #include <net/genetlink.h>
22 #include <net/cfg80211.h>
24 #include <net/inet_connection_sock.h>
30 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
35 /* the netlink family */
36 static struct genl_family nl80211_fam;
38 /* multicast groups */
39 enum nl80211_multicast_groups {
42 NL80211_MCGRP_REGULATORY,
46 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
49 static const struct genl_multicast_group nl80211_mcgrps[] = {
50 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
51 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
52 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
53 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
54 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
55 [NL80211_MCGRP_NAN] = { .name = NL80211_MULTICAST_GROUP_NAN },
56 #ifdef CONFIG_NL80211_TESTMODE
57 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
61 /* returns ERR_PTR values */
62 static struct wireless_dev *
63 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
65 struct cfg80211_registered_device *rdev;
66 struct wireless_dev *result = NULL;
67 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
68 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
75 if (!have_ifidx && !have_wdev_id)
76 return ERR_PTR(-EINVAL);
79 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
81 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
82 wiphy_idx = wdev_id >> 32;
85 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
86 struct wireless_dev *wdev;
88 if (wiphy_net(&rdev->wiphy) != netns)
91 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
94 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
95 if (have_ifidx && wdev->netdev &&
96 wdev->netdev->ifindex == ifidx) {
100 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 return ERR_PTR(-ENODEV);
115 static struct cfg80211_registered_device *
116 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
118 struct cfg80211_registered_device *rdev = NULL, *tmp;
119 struct net_device *netdev;
123 if (!attrs[NL80211_ATTR_WIPHY] &&
124 !attrs[NL80211_ATTR_IFINDEX] &&
125 !attrs[NL80211_ATTR_WDEV])
126 return ERR_PTR(-EINVAL);
128 if (attrs[NL80211_ATTR_WIPHY])
129 rdev = cfg80211_rdev_by_wiphy_idx(
130 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
132 if (attrs[NL80211_ATTR_WDEV]) {
133 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
134 struct wireless_dev *wdev;
137 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
139 /* make sure wdev exists */
140 list_for_each_entry(wdev, &tmp->wiphy.wdev_list, list) {
141 if (wdev->identifier != (u32)wdev_id)
150 if (rdev && tmp != rdev)
151 return ERR_PTR(-EINVAL);
156 if (attrs[NL80211_ATTR_IFINDEX]) {
157 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
159 netdev = __dev_get_by_index(netns, ifindex);
161 if (netdev->ieee80211_ptr)
163 netdev->ieee80211_ptr->wiphy);
167 /* not wireless device -- return error */
169 return ERR_PTR(-EINVAL);
171 /* mismatch -- return error */
172 if (rdev && tmp != rdev)
173 return ERR_PTR(-EINVAL);
180 return ERR_PTR(-ENODEV);
182 if (netns != wiphy_net(&rdev->wiphy))
183 return ERR_PTR(-ENODEV);
189 * This function returns a pointer to the driver
190 * that the genl_info item that is passed refers to.
192 * The result of this can be a PTR_ERR and hence must
193 * be checked with IS_ERR() for errors.
195 static struct cfg80211_registered_device *
196 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
198 return __cfg80211_rdev_from_attrs(netns, info->attrs);
201 /* policy for the attributes */
202 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
203 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
204 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
206 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
208 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
209 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
210 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
211 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
212 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
215 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
216 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
217 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
218 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
219 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
221 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
222 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
223 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
225 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
226 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
228 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
229 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
230 .len = WLAN_MAX_KEY_LEN },
231 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
232 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
233 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
234 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
235 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
237 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
238 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
239 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
240 .len = IEEE80211_MAX_DATA_LEN },
241 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
242 .len = IEEE80211_MAX_DATA_LEN },
243 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
244 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
245 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
246 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
247 .len = NL80211_MAX_SUPP_RATES },
248 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
249 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
250 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
251 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_MESH_ID_LEN },
253 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
255 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
256 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
258 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
259 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
260 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
261 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
262 .len = NL80211_MAX_SUPP_RATES },
263 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
265 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
266 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
268 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
270 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
271 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
272 .len = IEEE80211_MAX_DATA_LEN },
273 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
274 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
276 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
277 .len = IEEE80211_MAX_SSID_LEN },
278 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
279 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
280 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
281 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
282 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
283 [NL80211_ATTR_STA_FLAGS2] = {
284 .len = sizeof(struct nl80211_sta_flag_update),
286 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
287 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
288 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
289 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
290 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
291 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
292 [NL80211_ATTR_PID] = { .type = NLA_U32 },
293 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
294 [NL80211_ATTR_PMKID] = { .len = WLAN_PMKID_LEN },
295 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
296 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
297 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
298 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
299 .len = IEEE80211_MAX_DATA_LEN },
300 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
301 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
302 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
303 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
304 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
305 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
306 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
307 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
308 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
309 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
310 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
311 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
312 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
313 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
314 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
315 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
316 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
317 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
318 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
319 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
320 .len = IEEE80211_MAX_DATA_LEN },
321 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
322 .len = IEEE80211_MAX_DATA_LEN },
323 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
324 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
325 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
326 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
327 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
328 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
329 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
330 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
331 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
332 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
333 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
335 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
336 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
337 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
338 .len = NL80211_HT_CAPABILITY_LEN
340 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
341 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
342 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
343 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
344 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
345 [NL80211_ATTR_AUTH_DATA] = { .type = NLA_BINARY, },
346 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
347 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
348 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
349 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
350 [NL80211_ATTR_LOCAL_MESH_POWER_MODE] = {. type = NLA_U32 },
351 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
352 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
353 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
354 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
355 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
356 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
357 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
358 .len = NL80211_VHT_CAPABILITY_LEN,
360 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
361 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
362 .len = IEEE80211_MAX_DATA_LEN },
363 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
364 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
365 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
366 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
367 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
368 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
369 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
370 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
371 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
372 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
373 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
374 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
375 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
376 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
377 .len = IEEE80211_QOS_MAP_LEN_MAX },
378 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
379 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
380 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
381 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
382 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
383 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
384 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
385 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
386 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
387 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
388 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
390 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
391 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
392 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
393 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
394 [NL80211_ATTR_BSS_SELECT] = { .type = NLA_NESTED },
395 [NL80211_ATTR_STA_SUPPORT_P2P_PS] = { .type = NLA_U8 },
396 [NL80211_ATTR_MU_MIMO_GROUP_DATA] = {
397 .len = VHT_MUMIMO_GROUPS_DATA_LEN
399 [NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR] = { .len = ETH_ALEN },
400 [NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
401 [NL80211_ATTR_BANDS] = { .type = NLA_U32 },
402 [NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
403 [NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
404 .len = FILS_MAX_KEK_LEN },
405 [NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
406 [NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED] = { .type = NLA_FLAG, },
407 [NL80211_ATTR_BSSID] = { .len = ETH_ALEN },
408 [NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] = { .type = NLA_S8 },
409 [NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST] = {
410 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
412 [NL80211_ATTR_TIMEOUT_REASON] = { .type = NLA_U32 },
413 [NL80211_ATTR_FILS_ERP_USERNAME] = { .type = NLA_BINARY,
414 .len = FILS_ERP_MAX_USERNAME_LEN },
415 [NL80211_ATTR_FILS_ERP_REALM] = { .type = NLA_BINARY,
416 .len = FILS_ERP_MAX_REALM_LEN },
417 [NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] = { .type = NLA_U16 },
418 [NL80211_ATTR_FILS_ERP_RRK] = { .type = NLA_BINARY,
419 .len = FILS_ERP_MAX_RRK_LEN },
420 [NL80211_ATTR_FILS_CACHE_ID] = { .len = 2 },
421 [NL80211_ATTR_PMK] = { .type = NLA_BINARY, .len = PMK_MAX_LEN },
422 [NL80211_ATTR_SCHED_SCAN_MULTI] = { .type = NLA_FLAG },
425 /* policy for the key attributes */
426 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
427 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
428 [NL80211_KEY_IDX] = { .type = NLA_U8 },
429 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
430 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
431 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
432 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
433 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
434 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
437 /* policy for the key default flags */
438 static const struct nla_policy
439 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
440 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
441 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
445 /* policy for WoWLAN attributes */
446 static const struct nla_policy
447 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
448 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
449 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
450 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
451 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
452 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
453 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
454 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
455 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
456 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
457 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
460 static const struct nla_policy
461 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
462 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
463 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
464 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
465 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
466 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
467 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
468 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
469 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
471 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
472 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
474 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
475 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
476 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
478 #endif /* CONFIG_PM */
480 /* policy for coalesce rule attributes */
481 static const struct nla_policy
482 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
483 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
484 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
485 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
488 /* policy for GTK rekey offload attributes */
489 static const struct nla_policy
490 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
491 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
492 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
493 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
496 static const struct nla_policy
497 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
498 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
499 .len = IEEE80211_MAX_SSID_LEN },
500 [NL80211_SCHED_SCAN_MATCH_ATTR_BSSID] = { .len = ETH_ALEN },
501 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
504 static const struct nla_policy
505 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
506 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
507 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
510 static const struct nla_policy
511 nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
512 [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
513 [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
514 [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = {
515 .len = sizeof(struct nl80211_bss_select_rssi_adjust)
519 /* policy for NAN function attributes */
520 static const struct nla_policy
521 nl80211_nan_func_policy[NL80211_NAN_FUNC_ATTR_MAX + 1] = {
522 [NL80211_NAN_FUNC_TYPE] = { .type = NLA_U8 },
523 [NL80211_NAN_FUNC_SERVICE_ID] = {
524 .len = NL80211_NAN_FUNC_SERVICE_ID_LEN },
525 [NL80211_NAN_FUNC_PUBLISH_TYPE] = { .type = NLA_U8 },
526 [NL80211_NAN_FUNC_PUBLISH_BCAST] = { .type = NLA_FLAG },
527 [NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE] = { .type = NLA_FLAG },
528 [NL80211_NAN_FUNC_FOLLOW_UP_ID] = { .type = NLA_U8 },
529 [NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID] = { .type = NLA_U8 },
530 [NL80211_NAN_FUNC_FOLLOW_UP_DEST] = { .len = ETH_ALEN },
531 [NL80211_NAN_FUNC_CLOSE_RANGE] = { .type = NLA_FLAG },
532 [NL80211_NAN_FUNC_TTL] = { .type = NLA_U32 },
533 [NL80211_NAN_FUNC_SERVICE_INFO] = { .type = NLA_BINARY,
534 .len = NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN },
535 [NL80211_NAN_FUNC_SRF] = { .type = NLA_NESTED },
536 [NL80211_NAN_FUNC_RX_MATCH_FILTER] = { .type = NLA_NESTED },
537 [NL80211_NAN_FUNC_TX_MATCH_FILTER] = { .type = NLA_NESTED },
538 [NL80211_NAN_FUNC_INSTANCE_ID] = { .type = NLA_U8 },
539 [NL80211_NAN_FUNC_TERM_REASON] = { .type = NLA_U8 },
542 /* policy for Service Response Filter attributes */
543 static const struct nla_policy
544 nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
545 [NL80211_NAN_SRF_INCLUDE] = { .type = NLA_FLAG },
546 [NL80211_NAN_SRF_BF] = { .type = NLA_BINARY,
547 .len = NL80211_NAN_FUNC_SRF_MAX_LEN },
548 [NL80211_NAN_SRF_BF_IDX] = { .type = NLA_U8 },
549 [NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
552 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
553 struct netlink_callback *cb,
554 struct cfg80211_registered_device **rdev,
555 struct wireless_dev **wdev)
560 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
561 genl_family_attrbuf(&nl80211_fam),
562 nl80211_fam.maxattr, nl80211_policy, NULL);
566 *wdev = __cfg80211_wdev_from_attrs(
568 genl_family_attrbuf(&nl80211_fam));
570 return PTR_ERR(*wdev);
571 *rdev = wiphy_to_rdev((*wdev)->wiphy);
572 /* 0 is the first index - add 1 to parse only once */
573 cb->args[0] = (*rdev)->wiphy_idx + 1;
574 cb->args[1] = (*wdev)->identifier;
576 /* subtract the 1 again here */
577 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
578 struct wireless_dev *tmp;
582 *rdev = wiphy_to_rdev(wiphy);
585 list_for_each_entry(tmp, &(*rdev)->wiphy.wdev_list, list) {
586 if (tmp->identifier == cb->args[1]) {
600 static bool is_valid_ie_attr(const struct nlattr *attr)
608 pos = nla_data(attr);
629 /* message building helper */
630 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
633 /* since there is no private header just add the generic one */
634 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
637 static int nl80211_msg_put_channel(struct sk_buff *msg,
638 struct ieee80211_channel *chan,
641 /* Some channels must be completely excluded from the
642 * list to protect old user-space tools from breaking
644 if (!large && chan->flags &
645 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
648 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
650 goto nla_put_failure;
652 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
654 goto nla_put_failure;
655 if (chan->flags & IEEE80211_CHAN_NO_IR) {
656 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
657 goto nla_put_failure;
658 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
659 goto nla_put_failure;
661 if (chan->flags & IEEE80211_CHAN_RADAR) {
662 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
663 goto nla_put_failure;
667 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
669 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
671 goto nla_put_failure;
672 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
674 goto nla_put_failure;
676 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
678 goto nla_put_failure;
683 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
684 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
685 goto nla_put_failure;
686 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
687 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
688 goto nla_put_failure;
689 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
690 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
691 goto nla_put_failure;
692 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
693 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
694 goto nla_put_failure;
695 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
696 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
697 goto nla_put_failure;
698 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
699 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
700 goto nla_put_failure;
701 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
702 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
703 goto nla_put_failure;
704 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
705 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
706 goto nla_put_failure;
709 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
710 DBM_TO_MBM(chan->max_power)))
711 goto nla_put_failure;
719 /* netlink command implementations */
726 bool def_uni, def_multi;
729 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
731 struct nlattr *tb[NL80211_KEY_MAX + 1];
732 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
733 nl80211_key_policy, NULL);
737 k->def = !!tb[NL80211_KEY_DEFAULT];
738 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
747 if (tb[NL80211_KEY_IDX])
748 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
750 if (tb[NL80211_KEY_DATA]) {
751 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
752 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
755 if (tb[NL80211_KEY_SEQ]) {
756 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
757 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
760 if (tb[NL80211_KEY_CIPHER])
761 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
763 if (tb[NL80211_KEY_TYPE]) {
764 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
765 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
769 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
770 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
772 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
773 tb[NL80211_KEY_DEFAULT_TYPES],
774 nl80211_key_default_policy, NULL);
778 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
779 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
785 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
787 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
788 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
789 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
792 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
793 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
794 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
797 if (info->attrs[NL80211_ATTR_KEY_IDX])
798 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
800 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
801 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
803 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
804 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
813 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
814 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
815 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
819 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
820 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
821 int err = nla_parse_nested(kdt,
822 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
823 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
824 nl80211_key_default_policy,
829 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
830 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
836 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
840 memset(k, 0, sizeof(*k));
844 if (info->attrs[NL80211_ATTR_KEY])
845 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
847 err = nl80211_parse_key_old(info, k);
852 if (k->def && k->defmgmt)
856 if (k->def_uni || !k->def_multi)
862 if (k->idx < 4 || k->idx > 5)
865 if (k->idx < 0 || k->idx > 3)
868 if (k->idx < 0 || k->idx > 5)
876 static struct cfg80211_cached_keys *
877 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
878 struct nlattr *keys, bool *no_ht)
880 struct key_parse parse;
882 struct cfg80211_cached_keys *result;
883 int rem, err, def = 0;
884 bool have_key = false;
886 nla_for_each_nested(key, keys, rem) {
894 result = kzalloc(sizeof(*result), GFP_KERNEL);
896 return ERR_PTR(-ENOMEM);
900 nla_for_each_nested(key, keys, rem) {
901 memset(&parse, 0, sizeof(parse));
904 err = nl80211_parse_key_new(key, &parse);
910 if (parse.idx < 0 || parse.idx > 3)
916 result->def = parse.idx;
917 if (!parse.def_uni || !parse.def_multi)
919 } else if (parse.defmgmt)
921 err = cfg80211_validate_key_settings(rdev, &parse.p,
922 parse.idx, false, NULL);
925 if (parse.p.cipher != WLAN_CIPHER_SUITE_WEP40 &&
926 parse.p.cipher != WLAN_CIPHER_SUITE_WEP104) {
930 result->params[parse.idx].cipher = parse.p.cipher;
931 result->params[parse.idx].key_len = parse.p.key_len;
932 result->params[parse.idx].key = result->data[parse.idx];
933 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
935 /* must be WEP key if we got here */
940 if (result->def < 0) {
951 static int nl80211_key_allowed(struct wireless_dev *wdev)
953 ASSERT_WDEV_LOCK(wdev);
955 switch (wdev->iftype) {
956 case NL80211_IFTYPE_AP:
957 case NL80211_IFTYPE_AP_VLAN:
958 case NL80211_IFTYPE_P2P_GO:
959 case NL80211_IFTYPE_MESH_POINT:
961 case NL80211_IFTYPE_ADHOC:
962 case NL80211_IFTYPE_STATION:
963 case NL80211_IFTYPE_P2P_CLIENT:
964 if (!wdev->current_bss)
967 case NL80211_IFTYPE_UNSPECIFIED:
968 case NL80211_IFTYPE_OCB:
969 case NL80211_IFTYPE_MONITOR:
970 case NL80211_IFTYPE_NAN:
971 case NL80211_IFTYPE_P2P_DEVICE:
972 case NL80211_IFTYPE_WDS:
973 case NUM_NL80211_IFTYPES:
980 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
983 struct ieee80211_channel *chan;
987 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
988 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
993 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
995 struct nlattr *nl_modes = nla_nest_start(msg, attr);
999 goto nla_put_failure;
1003 if ((ifmodes & 1) && nla_put_flag(msg, i))
1004 goto nla_put_failure;
1009 nla_nest_end(msg, nl_modes);
1016 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
1017 struct sk_buff *msg,
1020 struct nlattr *nl_combis;
1023 nl_combis = nla_nest_start(msg,
1024 NL80211_ATTR_INTERFACE_COMBINATIONS);
1026 goto nla_put_failure;
1028 for (i = 0; i < wiphy->n_iface_combinations; i++) {
1029 const struct ieee80211_iface_combination *c;
1030 struct nlattr *nl_combi, *nl_limits;
1032 c = &wiphy->iface_combinations[i];
1034 nl_combi = nla_nest_start(msg, i + 1);
1036 goto nla_put_failure;
1038 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
1040 goto nla_put_failure;
1042 for (j = 0; j < c->n_limits; j++) {
1043 struct nlattr *nl_limit;
1045 nl_limit = nla_nest_start(msg, j + 1);
1047 goto nla_put_failure;
1048 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
1050 goto nla_put_failure;
1051 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
1052 c->limits[j].types))
1053 goto nla_put_failure;
1054 nla_nest_end(msg, nl_limit);
1057 nla_nest_end(msg, nl_limits);
1059 if (c->beacon_int_infra_match &&
1060 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
1061 goto nla_put_failure;
1062 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
1063 c->num_different_channels) ||
1064 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
1066 goto nla_put_failure;
1068 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1069 c->radar_detect_widths) ||
1070 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1071 c->radar_detect_regions)))
1072 goto nla_put_failure;
1073 if (c->beacon_int_min_gcd &&
1074 nla_put_u32(msg, NL80211_IFACE_COMB_BI_MIN_GCD,
1075 c->beacon_int_min_gcd))
1076 goto nla_put_failure;
1078 nla_nest_end(msg, nl_combi);
1081 nla_nest_end(msg, nl_combis);
1089 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1090 struct sk_buff *msg)
1092 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1093 struct nlattr *nl_tcp;
1098 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1102 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1103 tcp->data_payload_max))
1106 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1107 tcp->data_payload_max))
1110 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1113 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1114 sizeof(*tcp->tok), tcp->tok))
1117 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1118 tcp->data_interval_max))
1121 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1122 tcp->wake_payload_max))
1125 nla_nest_end(msg, nl_tcp);
1129 static int nl80211_send_wowlan(struct sk_buff *msg,
1130 struct cfg80211_registered_device *rdev,
1133 struct nlattr *nl_wowlan;
1135 if (!rdev->wiphy.wowlan)
1138 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1142 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1143 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1144 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1145 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1146 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1147 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1148 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1149 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1150 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1151 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1152 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1153 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1154 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1155 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1156 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1157 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1160 if (rdev->wiphy.wowlan->n_patterns) {
1161 struct nl80211_pattern_support pat = {
1162 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1163 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1164 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1165 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1168 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1173 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1174 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1175 rdev->wiphy.wowlan->max_nd_match_sets))
1178 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1181 nla_nest_end(msg, nl_wowlan);
1187 static int nl80211_send_coalesce(struct sk_buff *msg,
1188 struct cfg80211_registered_device *rdev)
1190 struct nl80211_coalesce_rule_support rule;
1192 if (!rdev->wiphy.coalesce)
1195 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1196 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1197 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1198 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1199 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1200 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1202 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1208 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1209 struct ieee80211_supported_band *sband)
1211 struct nlattr *nl_rates, *nl_rate;
1212 struct ieee80211_rate *rate;
1216 if (sband->ht_cap.ht_supported &&
1217 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1218 sizeof(sband->ht_cap.mcs),
1219 &sband->ht_cap.mcs) ||
1220 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1221 sband->ht_cap.cap) ||
1222 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1223 sband->ht_cap.ampdu_factor) ||
1224 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1225 sband->ht_cap.ampdu_density)))
1229 if (sband->vht_cap.vht_supported &&
1230 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1231 sizeof(sband->vht_cap.vht_mcs),
1232 &sband->vht_cap.vht_mcs) ||
1233 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1234 sband->vht_cap.cap)))
1238 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1242 for (i = 0; i < sband->n_bitrates; i++) {
1243 nl_rate = nla_nest_start(msg, i);
1247 rate = &sband->bitrates[i];
1248 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1251 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1253 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1256 nla_nest_end(msg, nl_rate);
1259 nla_nest_end(msg, nl_rates);
1265 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1266 const struct ieee80211_txrx_stypes *mgmt_stypes)
1269 struct nlattr *nl_ftypes, *nl_ifs;
1270 enum nl80211_iftype ift;
1276 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1280 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1281 nl_ftypes = nla_nest_start(msg, ift);
1285 stypes = mgmt_stypes[ift].tx;
1288 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1289 (i << 4) | IEEE80211_FTYPE_MGMT))
1294 nla_nest_end(msg, nl_ftypes);
1297 nla_nest_end(msg, nl_ifs);
1299 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1303 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1304 nl_ftypes = nla_nest_start(msg, ift);
1308 stypes = mgmt_stypes[ift].rx;
1311 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1312 (i << 4) | IEEE80211_FTYPE_MGMT))
1317 nla_nest_end(msg, nl_ftypes);
1319 nla_nest_end(msg, nl_ifs);
1324 #define CMD(op, n) \
1326 if (rdev->ops->op) { \
1328 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1329 goto nla_put_failure; \
1333 static int nl80211_add_commands_unsplit(struct cfg80211_registered_device *rdev,
1334 struct sk_buff *msg)
1339 * do *NOT* add anything into this function, new things need to be
1340 * advertised only to new versions of userspace that can deal with
1341 * the split (and they can't possibly care about new features...
1343 CMD(add_virtual_intf, NEW_INTERFACE);
1344 CMD(change_virtual_intf, SET_INTERFACE);
1345 CMD(add_key, NEW_KEY);
1346 CMD(start_ap, START_AP);
1347 CMD(add_station, NEW_STATION);
1348 CMD(add_mpath, NEW_MPATH);
1349 CMD(update_mesh_config, SET_MESH_CONFIG);
1350 CMD(change_bss, SET_BSS);
1351 CMD(auth, AUTHENTICATE);
1352 CMD(assoc, ASSOCIATE);
1353 CMD(deauth, DEAUTHENTICATE);
1354 CMD(disassoc, DISASSOCIATE);
1355 CMD(join_ibss, JOIN_IBSS);
1356 CMD(join_mesh, JOIN_MESH);
1357 CMD(set_pmksa, SET_PMKSA);
1358 CMD(del_pmksa, DEL_PMKSA);
1359 CMD(flush_pmksa, FLUSH_PMKSA);
1360 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1361 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1362 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1363 CMD(mgmt_tx, FRAME);
1364 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1365 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1367 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1368 goto nla_put_failure;
1370 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1371 rdev->ops->join_mesh) {
1373 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1374 goto nla_put_failure;
1376 CMD(set_wds_peer, SET_WDS_PEER);
1377 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1378 CMD(tdls_mgmt, TDLS_MGMT);
1379 CMD(tdls_oper, TDLS_OPER);
1381 if (rdev->wiphy.max_sched_scan_reqs)
1382 CMD(sched_scan_start, START_SCHED_SCAN);
1383 CMD(probe_client, PROBE_CLIENT);
1384 CMD(set_noack_map, SET_NOACK_MAP);
1385 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1387 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1388 goto nla_put_failure;
1390 CMD(start_p2p_device, START_P2P_DEVICE);
1391 CMD(set_mcast_rate, SET_MCAST_RATE);
1392 #ifdef CONFIG_NL80211_TESTMODE
1393 CMD(testmode_cmd, TESTMODE);
1396 if (rdev->ops->connect || rdev->ops->auth) {
1398 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1399 goto nla_put_failure;
1402 if (rdev->ops->disconnect || rdev->ops->deauth) {
1404 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1405 goto nla_put_failure;
1413 struct nl80211_dump_wiphy_state {
1416 long split_start, band_start, chan_start, capa_start;
1420 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1421 enum nl80211_commands cmd,
1422 struct sk_buff *msg, u32 portid, u32 seq,
1423 int flags, struct nl80211_dump_wiphy_state *state)
1426 struct nlattr *nl_bands, *nl_band;
1427 struct nlattr *nl_freqs, *nl_freq;
1428 struct nlattr *nl_cmds;
1429 enum nl80211_band band;
1430 struct ieee80211_channel *chan;
1432 const struct ieee80211_txrx_stypes *mgmt_stypes =
1433 rdev->wiphy.mgmt_stypes;
1436 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1440 if (WARN_ON(!state))
1443 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1444 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1445 wiphy_name(&rdev->wiphy)) ||
1446 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1447 cfg80211_rdev_list_generation))
1448 goto nla_put_failure;
1450 if (cmd != NL80211_CMD_NEW_WIPHY)
1453 switch (state->split_start) {
1455 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1456 rdev->wiphy.retry_short) ||
1457 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1458 rdev->wiphy.retry_long) ||
1459 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1460 rdev->wiphy.frag_threshold) ||
1461 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1462 rdev->wiphy.rts_threshold) ||
1463 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1464 rdev->wiphy.coverage_class) ||
1465 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1466 rdev->wiphy.max_scan_ssids) ||
1467 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1468 rdev->wiphy.max_sched_scan_ssids) ||
1469 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1470 rdev->wiphy.max_scan_ie_len) ||
1471 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1472 rdev->wiphy.max_sched_scan_ie_len) ||
1473 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1474 rdev->wiphy.max_match_sets) ||
1475 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1476 rdev->wiphy.max_sched_scan_plans) ||
1477 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1478 rdev->wiphy.max_sched_scan_plan_interval) ||
1479 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1480 rdev->wiphy.max_sched_scan_plan_iterations))
1481 goto nla_put_failure;
1483 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1484 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1485 goto nla_put_failure;
1486 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1487 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1488 goto nla_put_failure;
1489 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1490 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1491 goto nla_put_failure;
1492 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1493 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1494 goto nla_put_failure;
1495 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1496 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1497 goto nla_put_failure;
1498 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1499 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1500 goto nla_put_failure;
1501 state->split_start++;
1505 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1506 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1507 rdev->wiphy.cipher_suites))
1508 goto nla_put_failure;
1510 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1511 rdev->wiphy.max_num_pmkids))
1512 goto nla_put_failure;
1514 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1515 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1516 goto nla_put_failure;
1518 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1519 rdev->wiphy.available_antennas_tx) ||
1520 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1521 rdev->wiphy.available_antennas_rx))
1522 goto nla_put_failure;
1524 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1525 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1526 rdev->wiphy.probe_resp_offload))
1527 goto nla_put_failure;
1529 if ((rdev->wiphy.available_antennas_tx ||
1530 rdev->wiphy.available_antennas_rx) &&
1531 rdev->ops->get_antenna) {
1532 u32 tx_ant = 0, rx_ant = 0;
1535 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1537 if (nla_put_u32(msg,
1538 NL80211_ATTR_WIPHY_ANTENNA_TX,
1541 NL80211_ATTR_WIPHY_ANTENNA_RX,
1543 goto nla_put_failure;
1547 state->split_start++;
1551 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1552 rdev->wiphy.interface_modes))
1553 goto nla_put_failure;
1554 state->split_start++;
1558 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1560 goto nla_put_failure;
1562 for (band = state->band_start;
1563 band < NUM_NL80211_BANDS; band++) {
1564 struct ieee80211_supported_band *sband;
1566 sband = rdev->wiphy.bands[band];
1571 nl_band = nla_nest_start(msg, band);
1573 goto nla_put_failure;
1575 switch (state->chan_start) {
1577 if (nl80211_send_band_rateinfo(msg, sband))
1578 goto nla_put_failure;
1579 state->chan_start++;
1583 /* add frequencies */
1584 nl_freqs = nla_nest_start(
1585 msg, NL80211_BAND_ATTR_FREQS);
1587 goto nla_put_failure;
1589 for (i = state->chan_start - 1;
1590 i < sband->n_channels;
1592 nl_freq = nla_nest_start(msg, i);
1594 goto nla_put_failure;
1596 chan = &sband->channels[i];
1598 if (nl80211_msg_put_channel(
1601 goto nla_put_failure;
1603 nla_nest_end(msg, nl_freq);
1607 if (i < sband->n_channels)
1608 state->chan_start = i + 2;
1610 state->chan_start = 0;
1611 nla_nest_end(msg, nl_freqs);
1614 nla_nest_end(msg, nl_band);
1617 /* start again here */
1618 if (state->chan_start)
1623 nla_nest_end(msg, nl_bands);
1625 if (band < NUM_NL80211_BANDS)
1626 state->band_start = band + 1;
1628 state->band_start = 0;
1630 /* if bands & channels are done, continue outside */
1631 if (state->band_start == 0 && state->chan_start == 0)
1632 state->split_start++;
1636 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1638 goto nla_put_failure;
1640 i = nl80211_add_commands_unsplit(rdev, msg);
1642 goto nla_put_failure;
1644 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1645 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1646 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1647 CMD(channel_switch, CHANNEL_SWITCH);
1648 CMD(set_qos_map, SET_QOS_MAP);
1649 if (rdev->wiphy.features &
1650 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1651 CMD(add_tx_ts, ADD_TX_TS);
1652 CMD(set_multicast_to_unicast, SET_MULTICAST_TO_UNICAST);
1653 CMD(update_connect_params, UPDATE_CONNECT_PARAMS);
1657 nla_nest_end(msg, nl_cmds);
1658 state->split_start++;
1662 if (rdev->ops->remain_on_channel &&
1663 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1665 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1666 rdev->wiphy.max_remain_on_channel_duration))
1667 goto nla_put_failure;
1669 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1670 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1671 goto nla_put_failure;
1673 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1674 goto nla_put_failure;
1675 state->split_start++;
1680 if (nl80211_send_wowlan(msg, rdev, state->split))
1681 goto nla_put_failure;
1682 state->split_start++;
1686 state->split_start++;
1689 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1690 rdev->wiphy.software_iftypes))
1691 goto nla_put_failure;
1693 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1695 goto nla_put_failure;
1697 state->split_start++;
1701 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1702 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1703 rdev->wiphy.ap_sme_capa))
1704 goto nla_put_failure;
1706 features = rdev->wiphy.features;
1708 * We can only add the per-channel limit information if the
1709 * dump is split, otherwise it makes it too big. Therefore
1710 * only advertise it in that case.
1713 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1714 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1715 goto nla_put_failure;
1717 if (rdev->wiphy.ht_capa_mod_mask &&
1718 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1719 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1720 rdev->wiphy.ht_capa_mod_mask))
1721 goto nla_put_failure;
1723 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1724 rdev->wiphy.max_acl_mac_addrs &&
1725 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1726 rdev->wiphy.max_acl_mac_addrs))
1727 goto nla_put_failure;
1730 * Any information below this point is only available to
1731 * applications that can deal with it being split. This
1732 * helps ensure that newly added capabilities don't break
1733 * older tools by overrunning their buffers.
1735 * We still increment split_start so that in the split
1736 * case we'll continue with more data in the next round,
1737 * but break unconditionally so unsplit data stops here.
1739 state->split_start++;
1742 if (rdev->wiphy.extended_capabilities &&
1743 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1744 rdev->wiphy.extended_capabilities_len,
1745 rdev->wiphy.extended_capabilities) ||
1746 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1747 rdev->wiphy.extended_capabilities_len,
1748 rdev->wiphy.extended_capabilities_mask)))
1749 goto nla_put_failure;
1751 if (rdev->wiphy.vht_capa_mod_mask &&
1752 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1753 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1754 rdev->wiphy.vht_capa_mod_mask))
1755 goto nla_put_failure;
1757 state->split_start++;
1760 if (nl80211_send_coalesce(msg, rdev))
1761 goto nla_put_failure;
1763 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1764 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1765 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1766 goto nla_put_failure;
1768 if (rdev->wiphy.max_ap_assoc_sta &&
1769 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1770 rdev->wiphy.max_ap_assoc_sta))
1771 goto nla_put_failure;
1773 state->split_start++;
1776 if (rdev->wiphy.n_vendor_commands) {
1777 const struct nl80211_vendor_cmd_info *info;
1778 struct nlattr *nested;
1780 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1782 goto nla_put_failure;
1784 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1785 info = &rdev->wiphy.vendor_commands[i].info;
1786 if (nla_put(msg, i + 1, sizeof(*info), info))
1787 goto nla_put_failure;
1789 nla_nest_end(msg, nested);
1792 if (rdev->wiphy.n_vendor_events) {
1793 const struct nl80211_vendor_cmd_info *info;
1794 struct nlattr *nested;
1796 nested = nla_nest_start(msg,
1797 NL80211_ATTR_VENDOR_EVENTS);
1799 goto nla_put_failure;
1801 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1802 info = &rdev->wiphy.vendor_events[i];
1803 if (nla_put(msg, i + 1, sizeof(*info), info))
1804 goto nla_put_failure;
1806 nla_nest_end(msg, nested);
1808 state->split_start++;
1811 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1812 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1813 rdev->wiphy.max_num_csa_counters))
1814 goto nla_put_failure;
1816 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1817 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1818 goto nla_put_failure;
1820 if (rdev->wiphy.max_sched_scan_reqs &&
1821 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_MAX_REQS,
1822 rdev->wiphy.max_sched_scan_reqs))
1823 goto nla_put_failure;
1825 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1826 sizeof(rdev->wiphy.ext_features),
1827 rdev->wiphy.ext_features))
1828 goto nla_put_failure;
1830 if (rdev->wiphy.bss_select_support) {
1831 struct nlattr *nested;
1832 u32 bss_select_support = rdev->wiphy.bss_select_support;
1834 nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
1836 goto nla_put_failure;
1839 while (bss_select_support) {
1840 if ((bss_select_support & 1) &&
1841 nla_put_flag(msg, i))
1842 goto nla_put_failure;
1844 bss_select_support >>= 1;
1846 nla_nest_end(msg, nested);
1849 state->split_start++;
1852 if (rdev->wiphy.num_iftype_ext_capab &&
1853 rdev->wiphy.iftype_ext_capab) {
1854 struct nlattr *nested_ext_capab, *nested;
1856 nested = nla_nest_start(msg,
1857 NL80211_ATTR_IFTYPE_EXT_CAPA);
1859 goto nla_put_failure;
1861 for (i = state->capa_start;
1862 i < rdev->wiphy.num_iftype_ext_capab; i++) {
1863 const struct wiphy_iftype_ext_capab *capab;
1865 capab = &rdev->wiphy.iftype_ext_capab[i];
1867 nested_ext_capab = nla_nest_start(msg, i);
1868 if (!nested_ext_capab ||
1869 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1871 nla_put(msg, NL80211_ATTR_EXT_CAPA,
1872 capab->extended_capabilities_len,
1873 capab->extended_capabilities) ||
1874 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1875 capab->extended_capabilities_len,
1876 capab->extended_capabilities_mask))
1877 goto nla_put_failure;
1879 nla_nest_end(msg, nested_ext_capab);
1883 nla_nest_end(msg, nested);
1884 if (i < rdev->wiphy.num_iftype_ext_capab) {
1885 state->capa_start = i + 1;
1890 if (nla_put_u32(msg, NL80211_ATTR_BANDS,
1891 rdev->wiphy.nan_supported_bands))
1892 goto nla_put_failure;
1895 state->split_start = 0;
1899 genlmsg_end(msg, hdr);
1903 genlmsg_cancel(msg, hdr);
1907 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1908 struct netlink_callback *cb,
1909 struct nl80211_dump_wiphy_state *state)
1911 struct nlattr **tb = genl_family_attrbuf(&nl80211_fam);
1912 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, tb,
1913 nl80211_fam.maxattr, nl80211_policy, NULL);
1914 /* ignore parse errors for backward compatibility */
1918 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1919 if (tb[NL80211_ATTR_WIPHY])
1920 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1921 if (tb[NL80211_ATTR_WDEV])
1922 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1923 if (tb[NL80211_ATTR_IFINDEX]) {
1924 struct net_device *netdev;
1925 struct cfg80211_registered_device *rdev;
1926 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1928 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1931 if (netdev->ieee80211_ptr) {
1932 rdev = wiphy_to_rdev(
1933 netdev->ieee80211_ptr->wiphy);
1934 state->filter_wiphy = rdev->wiphy_idx;
1941 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1944 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1945 struct cfg80211_registered_device *rdev;
1949 state = kzalloc(sizeof(*state), GFP_KERNEL);
1954 state->filter_wiphy = -1;
1955 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1961 cb->args[0] = (long)state;
1964 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1965 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1967 if (++idx <= state->start)
1969 if (state->filter_wiphy != -1 &&
1970 state->filter_wiphy != rdev->wiphy_idx)
1972 /* attempt to fit multiple wiphy data chunks into the skb */
1974 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1976 NETLINK_CB(cb->skb).portid,
1978 NLM_F_MULTI, state);
1981 * If sending the wiphy data didn't fit (ENOBUFS
1982 * or EMSGSIZE returned), this SKB is still
1983 * empty (so it's not too big because another
1984 * wiphy dataset is already in the skb) and
1985 * we've not tried to adjust the dump allocation
1986 * yet ... then adjust the alloc size to be
1987 * bigger, and return 1 but with the empty skb.
1988 * This results in an empty message being RX'ed
1989 * in userspace, but that is ignored.
1991 * We can then retry with the larger buffer.
1993 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1994 !skb->len && !state->split &&
1995 cb->min_dump_alloc < 4096) {
1996 cb->min_dump_alloc = 4096;
1997 state->split_start = 0;
2004 } while (state->split_start > 0);
2014 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
2016 kfree((void *)cb->args[0]);
2020 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
2022 struct sk_buff *msg;
2023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2024 struct nl80211_dump_wiphy_state state = {};
2026 msg = nlmsg_new(4096, GFP_KERNEL);
2030 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
2031 info->snd_portid, info->snd_seq, 0,
2037 return genlmsg_reply(msg, info);
2040 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
2041 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
2042 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
2043 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
2044 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
2045 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
2048 static int parse_txq_params(struct nlattr *tb[],
2049 struct ieee80211_txq_params *txq_params)
2051 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
2052 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
2053 !tb[NL80211_TXQ_ATTR_AIFS])
2056 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
2057 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
2058 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
2059 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
2060 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
2062 if (txq_params->ac >= NL80211_NUM_ACS)
2068 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
2071 * You can only set the channel explicitly for WDS interfaces,
2072 * all others have their channel managed via their respective
2073 * "establish a connection" command (connect, join, ...)
2075 * For AP/GO and mesh mode, the channel can be set with the
2076 * channel userspace API, but is only stored and passed to the
2077 * low-level driver when the AP starts or the mesh is joined.
2078 * This is for backward compatibility, userspace can also give
2079 * the channel in the start-ap or join-mesh commands instead.
2081 * Monitors are special as they are normally slaved to
2082 * whatever else is going on, so they have their own special
2083 * operation to set the monitor channel if possible.
2086 wdev->iftype == NL80211_IFTYPE_AP ||
2087 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
2088 wdev->iftype == NL80211_IFTYPE_MONITOR ||
2089 wdev->iftype == NL80211_IFTYPE_P2P_GO;
2092 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
2093 struct genl_info *info,
2094 struct cfg80211_chan_def *chandef)
2098 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
2101 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
2103 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
2104 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
2105 chandef->center_freq1 = control_freq;
2106 chandef->center_freq2 = 0;
2108 /* Primary channel not allowed */
2109 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
2112 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2113 enum nl80211_channel_type chantype;
2115 chantype = nla_get_u32(
2116 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2119 case NL80211_CHAN_NO_HT:
2120 case NL80211_CHAN_HT20:
2121 case NL80211_CHAN_HT40PLUS:
2122 case NL80211_CHAN_HT40MINUS:
2123 cfg80211_chandef_create(chandef, chandef->chan,
2129 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
2131 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
2132 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
2133 chandef->center_freq1 =
2135 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
2136 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
2137 chandef->center_freq2 =
2139 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
2142 if (!cfg80211_chandef_valid(chandef))
2145 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
2146 IEEE80211_CHAN_DISABLED))
2149 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
2150 chandef->width == NL80211_CHAN_WIDTH_10) &&
2151 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
2157 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
2158 struct net_device *dev,
2159 struct genl_info *info)
2161 struct cfg80211_chan_def chandef;
2163 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2164 struct wireless_dev *wdev = NULL;
2167 wdev = dev->ieee80211_ptr;
2168 if (!nl80211_can_set_dev_channel(wdev))
2171 iftype = wdev->iftype;
2173 result = nl80211_parse_chandef(rdev, info, &chandef);
2178 case NL80211_IFTYPE_AP:
2179 case NL80211_IFTYPE_P2P_GO:
2180 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2185 if (wdev->beacon_interval) {
2186 if (!dev || !rdev->ops->set_ap_chanwidth ||
2187 !(rdev->wiphy.features &
2188 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2193 /* Only allow dynamic channel width changes */
2194 if (chandef.chan != wdev->preset_chandef.chan) {
2198 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2202 wdev->preset_chandef = chandef;
2205 case NL80211_IFTYPE_MESH_POINT:
2206 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2208 case NL80211_IFTYPE_MONITOR:
2209 result = cfg80211_set_monitor_channel(rdev, &chandef);
2218 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2221 struct net_device *netdev = info->user_ptr[1];
2223 return __nl80211_set_channel(rdev, netdev, info);
2226 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2229 struct net_device *dev = info->user_ptr[1];
2230 struct wireless_dev *wdev = dev->ieee80211_ptr;
2233 if (!info->attrs[NL80211_ATTR_MAC])
2236 if (netif_running(dev))
2239 if (!rdev->ops->set_wds_peer)
2242 if (wdev->iftype != NL80211_IFTYPE_WDS)
2245 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2246 return rdev_set_wds_peer(rdev, dev, bssid);
2249 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2251 struct cfg80211_registered_device *rdev;
2252 struct net_device *netdev = NULL;
2253 struct wireless_dev *wdev;
2254 int result = 0, rem_txq_params = 0;
2255 struct nlattr *nl_txq_params;
2257 u8 retry_short = 0, retry_long = 0;
2258 u32 frag_threshold = 0, rts_threshold = 0;
2259 u8 coverage_class = 0;
2264 * Try to find the wiphy and netdev. Normally this
2265 * function shouldn't need the netdev, but this is
2266 * done for backward compatibility -- previously
2267 * setting the channel was done per wiphy, but now
2268 * it is per netdev. Previous userland like hostapd
2269 * also passed a netdev to set_wiphy, so that it is
2270 * possible to let that go to the right netdev!
2273 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2274 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2276 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2277 if (netdev && netdev->ieee80211_ptr)
2278 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2284 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2287 return PTR_ERR(rdev);
2292 wdev = netdev->ieee80211_ptr;
2295 * end workaround code, by now the rdev is available
2296 * and locked, and wdev may or may not be NULL.
2299 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2300 result = cfg80211_dev_rename(
2301 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2306 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2307 struct ieee80211_txq_params txq_params;
2308 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2310 if (!rdev->ops->set_txq_params)
2316 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2317 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2320 if (!netif_running(netdev))
2323 nla_for_each_nested(nl_txq_params,
2324 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2326 result = nla_parse_nested(tb, NL80211_TXQ_ATTR_MAX,
2332 result = parse_txq_params(tb, &txq_params);
2336 result = rdev_set_txq_params(rdev, netdev,
2343 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2344 result = __nl80211_set_channel(
2346 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2352 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2353 struct wireless_dev *txp_wdev = wdev;
2354 enum nl80211_tx_power_setting type;
2357 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2360 if (!rdev->ops->set_tx_power)
2363 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2364 type = nla_get_u32(info->attrs[idx]);
2366 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2367 (type != NL80211_TX_POWER_AUTOMATIC))
2370 if (type != NL80211_TX_POWER_AUTOMATIC) {
2371 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2372 mbm = nla_get_u32(info->attrs[idx]);
2375 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2380 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2381 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2384 if ((!rdev->wiphy.available_antennas_tx &&
2385 !rdev->wiphy.available_antennas_rx) ||
2386 !rdev->ops->set_antenna)
2389 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2390 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2392 /* reject antenna configurations which don't match the
2393 * available antenna masks, except for the "all" mask */
2394 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2395 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2398 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2399 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2401 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2408 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2409 retry_short = nla_get_u8(
2410 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2411 if (retry_short == 0)
2414 changed |= WIPHY_PARAM_RETRY_SHORT;
2417 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2418 retry_long = nla_get_u8(
2419 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2420 if (retry_long == 0)
2423 changed |= WIPHY_PARAM_RETRY_LONG;
2426 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2427 frag_threshold = nla_get_u32(
2428 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2429 if (frag_threshold < 256)
2432 if (frag_threshold != (u32) -1) {
2434 * Fragments (apart from the last one) are required to
2435 * have even length. Make the fragmentation code
2436 * simpler by stripping LSB should someone try to use
2437 * odd threshold value.
2439 frag_threshold &= ~0x1;
2441 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2444 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2445 rts_threshold = nla_get_u32(
2446 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2447 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2450 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2451 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2454 coverage_class = nla_get_u8(
2455 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2456 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2459 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2460 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2463 changed |= WIPHY_PARAM_DYN_ACK;
2467 u8 old_retry_short, old_retry_long;
2468 u32 old_frag_threshold, old_rts_threshold;
2469 u8 old_coverage_class;
2471 if (!rdev->ops->set_wiphy_params)
2474 old_retry_short = rdev->wiphy.retry_short;
2475 old_retry_long = rdev->wiphy.retry_long;
2476 old_frag_threshold = rdev->wiphy.frag_threshold;
2477 old_rts_threshold = rdev->wiphy.rts_threshold;
2478 old_coverage_class = rdev->wiphy.coverage_class;
2480 if (changed & WIPHY_PARAM_RETRY_SHORT)
2481 rdev->wiphy.retry_short = retry_short;
2482 if (changed & WIPHY_PARAM_RETRY_LONG)
2483 rdev->wiphy.retry_long = retry_long;
2484 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2485 rdev->wiphy.frag_threshold = frag_threshold;
2486 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2487 rdev->wiphy.rts_threshold = rts_threshold;
2488 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2489 rdev->wiphy.coverage_class = coverage_class;
2491 result = rdev_set_wiphy_params(rdev, changed);
2493 rdev->wiphy.retry_short = old_retry_short;
2494 rdev->wiphy.retry_long = old_retry_long;
2495 rdev->wiphy.frag_threshold = old_frag_threshold;
2496 rdev->wiphy.rts_threshold = old_rts_threshold;
2497 rdev->wiphy.coverage_class = old_coverage_class;
2504 static inline u64 wdev_id(struct wireless_dev *wdev)
2506 return (u64)wdev->identifier |
2507 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2510 static int nl80211_send_chandef(struct sk_buff *msg,
2511 const struct cfg80211_chan_def *chandef)
2513 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2516 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2517 chandef->chan->center_freq))
2519 switch (chandef->width) {
2520 case NL80211_CHAN_WIDTH_20_NOHT:
2521 case NL80211_CHAN_WIDTH_20:
2522 case NL80211_CHAN_WIDTH_40:
2523 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2524 cfg80211_get_chandef_type(chandef)))
2530 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2532 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2534 if (chandef->center_freq2 &&
2535 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2540 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2541 struct cfg80211_registered_device *rdev,
2542 struct wireless_dev *wdev, bool removal)
2544 struct net_device *dev = wdev->netdev;
2545 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2549 cmd = NL80211_CMD_DEL_INTERFACE;
2551 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2556 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2557 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2558 goto nla_put_failure;
2560 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2561 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2562 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
2563 NL80211_ATTR_PAD) ||
2564 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2565 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2566 rdev->devlist_generation ^
2567 (cfg80211_rdev_list_generation << 2)))
2568 goto nla_put_failure;
2570 if (rdev->ops->get_channel) {
2572 struct cfg80211_chan_def chandef;
2574 ret = rdev_get_channel(rdev, wdev, &chandef);
2576 if (nl80211_send_chandef(msg, &chandef))
2577 goto nla_put_failure;
2581 if (rdev->ops->get_tx_power) {
2584 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2586 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2588 goto nla_put_failure;
2591 if (wdev->ssid_len) {
2592 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2593 goto nla_put_failure;
2596 genlmsg_end(msg, hdr);
2600 genlmsg_cancel(msg, hdr);
2604 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2608 int wp_start = cb->args[0];
2609 int if_start = cb->args[1];
2610 int filter_wiphy = -1;
2611 struct cfg80211_registered_device *rdev;
2612 struct wireless_dev *wdev;
2617 struct nl80211_dump_wiphy_state state = {
2621 ret = nl80211_dump_wiphy_parse(skb, cb, &state);
2625 filter_wiphy = state.filter_wiphy;
2628 * if filtering, set cb->args[2] to +1 since 0 is the default
2629 * value needed to determine that parsing is necessary.
2631 if (filter_wiphy >= 0)
2632 cb->args[2] = filter_wiphy + 1;
2635 } else if (cb->args[2] > 0) {
2636 filter_wiphy = cb->args[2] - 1;
2639 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2640 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2642 if (wp_idx < wp_start) {
2647 if (filter_wiphy >= 0 && filter_wiphy != rdev->wiphy_idx)
2652 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
2653 if (if_idx < if_start) {
2657 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2658 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2659 rdev, wdev, false) < 0) {
2668 cb->args[0] = wp_idx;
2669 cb->args[1] = if_idx;
2678 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2680 struct sk_buff *msg;
2681 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2682 struct wireless_dev *wdev = info->user_ptr[1];
2684 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2688 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2689 rdev, wdev, false) < 0) {
2694 return genlmsg_reply(msg, info);
2697 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2698 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2699 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2700 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2701 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2702 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2703 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2706 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2708 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2716 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, nla,
2717 mntr_flags_policy, NULL))
2720 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2722 *mntrflags |= (1<<flag);
2724 *mntrflags |= MONITOR_FLAG_CHANGED;
2729 static int nl80211_parse_mon_options(struct cfg80211_registered_device *rdev,
2730 enum nl80211_iftype type,
2731 struct genl_info *info,
2732 struct vif_params *params)
2734 bool change = false;
2737 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2738 if (type != NL80211_IFTYPE_MONITOR)
2741 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2749 if (params->flags & MONITOR_FLAG_ACTIVE &&
2750 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2753 if (info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]) {
2754 const u8 *mumimo_groups;
2755 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2757 if (type != NL80211_IFTYPE_MONITOR)
2760 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2764 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_GROUP_DATA]);
2766 /* bits 0 and 63 are reserved and must be zero */
2767 if ((mumimo_groups[0] & BIT(0)) ||
2768 (mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN - 1] & BIT(7)))
2771 params->vht_mumimo_groups = mumimo_groups;
2775 if (info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]) {
2776 u32 cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
2778 if (type != NL80211_IFTYPE_MONITOR)
2781 if (!wiphy_ext_feature_isset(&rdev->wiphy, cap_flag))
2784 params->vht_mumimo_follow_addr =
2785 nla_data(info->attrs[NL80211_ATTR_MU_MIMO_FOLLOW_MAC_ADDR]);
2789 return change ? 1 : 0;
2792 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2793 struct net_device *netdev, u8 use_4addr,
2794 enum nl80211_iftype iftype)
2797 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2803 case NL80211_IFTYPE_AP_VLAN:
2804 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2807 case NL80211_IFTYPE_STATION:
2808 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2818 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2821 struct vif_params params;
2823 enum nl80211_iftype otype, ntype;
2824 struct net_device *dev = info->user_ptr[1];
2825 bool change = false;
2827 memset(¶ms, 0, sizeof(params));
2829 otype = ntype = dev->ieee80211_ptr->iftype;
2831 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2832 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2835 if (ntype > NL80211_IFTYPE_MAX)
2839 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2840 struct wireless_dev *wdev = dev->ieee80211_ptr;
2842 if (ntype != NL80211_IFTYPE_MESH_POINT)
2844 if (netif_running(dev))
2848 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2849 IEEE80211_MAX_MESH_ID_LEN);
2850 wdev->mesh_id_up_len =
2851 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2852 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2853 wdev->mesh_id_up_len);
2857 if (info->attrs[NL80211_ATTR_4ADDR]) {
2858 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2860 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2864 params.use_4addr = -1;
2867 err = nl80211_parse_mon_options(rdev, ntype, info, ¶ms);
2874 err = cfg80211_change_iface(rdev, dev, ntype, ¶ms);
2878 if (!err && params.use_4addr != -1)
2879 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2884 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2887 struct vif_params params;
2888 struct wireless_dev *wdev;
2889 struct sk_buff *msg;
2891 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2893 /* to avoid failing a new interface creation due to pending removal */
2894 cfg80211_destroy_ifaces(rdev);
2896 memset(¶ms, 0, sizeof(params));
2898 if (!info->attrs[NL80211_ATTR_IFNAME])
2901 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2902 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2903 if (type > NL80211_IFTYPE_MAX)
2907 if (!rdev->ops->add_virtual_intf ||
2908 !(rdev->wiphy.interface_modes & (1 << type)))
2911 if ((type == NL80211_IFTYPE_P2P_DEVICE || type == NL80211_IFTYPE_NAN ||
2912 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2913 info->attrs[NL80211_ATTR_MAC]) {
2914 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2916 if (!is_valid_ether_addr(params.macaddr))
2917 return -EADDRNOTAVAIL;
2920 if (info->attrs[NL80211_ATTR_4ADDR]) {
2921 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2922 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2927 err = nl80211_parse_mon_options(rdev, type, info, ¶ms);
2931 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2935 wdev = rdev_add_virtual_intf(rdev,
2936 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2937 NET_NAME_USER, type, ¶ms);
2938 if (WARN_ON(!wdev)) {
2941 } else if (IS_ERR(wdev)) {
2943 return PTR_ERR(wdev);
2946 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2947 wdev->owner_nlportid = info->snd_portid;
2950 case NL80211_IFTYPE_MESH_POINT:
2951 if (!info->attrs[NL80211_ATTR_MESH_ID])
2954 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2955 IEEE80211_MAX_MESH_ID_LEN);
2956 wdev->mesh_id_up_len =
2957 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2958 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2959 wdev->mesh_id_up_len);
2962 case NL80211_IFTYPE_NAN:
2963 case NL80211_IFTYPE_P2P_DEVICE:
2965 * P2P Device and NAN do not have a netdev, so don't go
2966 * through the netdev notifier and must be added here
2968 mutex_init(&wdev->mtx);
2969 INIT_LIST_HEAD(&wdev->event_list);
2970 spin_lock_init(&wdev->event_lock);
2971 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2972 spin_lock_init(&wdev->mgmt_registrations_lock);
2974 wdev->identifier = ++rdev->wdev_id;
2975 list_add_rcu(&wdev->list, &rdev->wiphy.wdev_list);
2976 rdev->devlist_generation++;
2982 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2983 rdev, wdev, false) < 0) {
2989 * For wdevs which have no associated netdev object (e.g. of type
2990 * NL80211_IFTYPE_P2P_DEVICE), emit the NEW_INTERFACE event here.
2991 * For all other types, the event will be generated from the
2995 nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
2997 return genlmsg_reply(msg, info);
3000 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
3002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3003 struct wireless_dev *wdev = info->user_ptr[1];
3005 if (!rdev->ops->del_virtual_intf)
3009 * If we remove a wireless device without a netdev then clear
3010 * user_ptr[1] so that nl80211_post_doit won't dereference it
3011 * to check if it needs to do dev_put(). Otherwise it crashes
3012 * since the wdev has been freed, unlike with a netdev where
3013 * we need the dev_put() for the netdev to really be freed.
3016 info->user_ptr[1] = NULL;
3018 return rdev_del_virtual_intf(rdev, wdev);
3021 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
3023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3024 struct net_device *dev = info->user_ptr[1];
3027 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
3030 if (!rdev->ops->set_noack_map)
3033 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
3035 return rdev_set_noack_map(rdev, dev, noack_map);
3038 struct get_key_cookie {
3039 struct sk_buff *msg;
3044 static void get_key_callback(void *c, struct key_params *params)
3047 struct get_key_cookie *cookie = c;
3050 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
3051 params->key_len, params->key)) ||
3053 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
3054 params->seq_len, params->seq)) ||
3056 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
3058 goto nla_put_failure;
3060 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
3062 goto nla_put_failure;
3065 nla_put(cookie->msg, NL80211_KEY_DATA,
3066 params->key_len, params->key)) ||
3068 nla_put(cookie->msg, NL80211_KEY_SEQ,
3069 params->seq_len, params->seq)) ||
3071 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
3073 goto nla_put_failure;
3075 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
3076 goto nla_put_failure;
3078 nla_nest_end(cookie->msg, key);
3085 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
3087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3089 struct net_device *dev = info->user_ptr[1];
3091 const u8 *mac_addr = NULL;
3093 struct get_key_cookie cookie = {
3097 struct sk_buff *msg;
3099 if (info->attrs[NL80211_ATTR_KEY_IDX])
3100 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
3105 if (info->attrs[NL80211_ATTR_MAC])
3106 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3108 pairwise = !!mac_addr;
3109 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
3110 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
3112 if (kt >= NUM_NL80211_KEYTYPES)
3114 if (kt != NL80211_KEYTYPE_GROUP &&
3115 kt != NL80211_KEYTYPE_PAIRWISE)
3117 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
3120 if (!rdev->ops->get_key)
3123 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3126 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3130 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3131 NL80211_CMD_NEW_KEY);
3133 goto nla_put_failure;
3136 cookie.idx = key_idx;
3138 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3139 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
3140 goto nla_put_failure;
3142 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
3143 goto nla_put_failure;
3145 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
3152 goto nla_put_failure;
3154 genlmsg_end(msg, hdr);
3155 return genlmsg_reply(msg, info);
3164 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
3166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3167 struct key_parse key;
3169 struct net_device *dev = info->user_ptr[1];
3171 err = nl80211_parse_key(info, &key);
3178 /* only support setting default key */
3179 if (!key.def && !key.defmgmt)
3182 wdev_lock(dev->ieee80211_ptr);
3185 if (!rdev->ops->set_default_key) {
3190 err = nl80211_key_allowed(dev->ieee80211_ptr);
3194 err = rdev_set_default_key(rdev, dev, key.idx,
3195 key.def_uni, key.def_multi);
3200 #ifdef CONFIG_CFG80211_WEXT
3201 dev->ieee80211_ptr->wext.default_key = key.idx;
3204 if (key.def_uni || !key.def_multi) {
3209 if (!rdev->ops->set_default_mgmt_key) {
3214 err = nl80211_key_allowed(dev->ieee80211_ptr);
3218 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3222 #ifdef CONFIG_CFG80211_WEXT
3223 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3228 wdev_unlock(dev->ieee80211_ptr);
3233 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3235 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3237 struct net_device *dev = info->user_ptr[1];
3238 struct key_parse key;
3239 const u8 *mac_addr = NULL;
3241 err = nl80211_parse_key(info, &key);
3248 if (info->attrs[NL80211_ATTR_MAC])
3249 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3251 if (key.type == -1) {
3253 key.type = NL80211_KEYTYPE_PAIRWISE;
3255 key.type = NL80211_KEYTYPE_GROUP;
3259 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3260 key.type != NL80211_KEYTYPE_GROUP)
3263 if (!rdev->ops->add_key)
3266 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3267 key.type == NL80211_KEYTYPE_PAIRWISE,
3271 wdev_lock(dev->ieee80211_ptr);
3272 err = nl80211_key_allowed(dev->ieee80211_ptr);
3274 err = rdev_add_key(rdev, dev, key.idx,
3275 key.type == NL80211_KEYTYPE_PAIRWISE,
3277 wdev_unlock(dev->ieee80211_ptr);
3282 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3286 struct net_device *dev = info->user_ptr[1];
3287 u8 *mac_addr = NULL;
3288 struct key_parse key;
3290 err = nl80211_parse_key(info, &key);
3294 if (info->attrs[NL80211_ATTR_MAC])
3295 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3297 if (key.type == -1) {
3299 key.type = NL80211_KEYTYPE_PAIRWISE;
3301 key.type = NL80211_KEYTYPE_GROUP;
3305 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3306 key.type != NL80211_KEYTYPE_GROUP)
3309 if (!rdev->ops->del_key)
3312 wdev_lock(dev->ieee80211_ptr);
3313 err = nl80211_key_allowed(dev->ieee80211_ptr);
3315 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3316 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3320 err = rdev_del_key(rdev, dev, key.idx,
3321 key.type == NL80211_KEYTYPE_PAIRWISE,
3324 #ifdef CONFIG_CFG80211_WEXT
3326 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3327 dev->ieee80211_ptr->wext.default_key = -1;
3328 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3329 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3332 wdev_unlock(dev->ieee80211_ptr);
3337 /* This function returns an error or the number of nested attributes */
3338 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3340 struct nlattr *attr;
3341 int n_entries = 0, tmp;
3343 nla_for_each_nested(attr, nl_attr, tmp) {
3344 if (nla_len(attr) != ETH_ALEN)
3354 * This function parses ACL information and allocates memory for ACL data.
3355 * On successful return, the calling function is responsible to free the
3356 * ACL buffer returned by this function.
3358 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3359 struct genl_info *info)
3361 enum nl80211_acl_policy acl_policy;
3362 struct nlattr *attr;
3363 struct cfg80211_acl_data *acl;
3364 int i = 0, n_entries, tmp;
3366 if (!wiphy->max_acl_mac_addrs)
3367 return ERR_PTR(-EOPNOTSUPP);
3369 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3370 return ERR_PTR(-EINVAL);
3372 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3373 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3374 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3375 return ERR_PTR(-EINVAL);
3377 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3378 return ERR_PTR(-EINVAL);
3380 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3382 return ERR_PTR(n_entries);
3384 if (n_entries > wiphy->max_acl_mac_addrs)
3385 return ERR_PTR(-ENOTSUPP);
3387 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3390 return ERR_PTR(-ENOMEM);
3392 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3393 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3397 acl->n_acl_entries = n_entries;
3398 acl->acl_policy = acl_policy;
3403 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3406 struct net_device *dev = info->user_ptr[1];
3407 struct cfg80211_acl_data *acl;
3410 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3414 if (!dev->ieee80211_ptr->beacon_interval)
3417 acl = parse_acl_data(&rdev->wiphy, info);
3419 return PTR_ERR(acl);
3421 err = rdev_set_mac_acl(rdev, dev, acl);
3428 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
3429 u8 *rates, u8 rates_len)
3434 for (i = 0; i < rates_len; i++) {
3435 int rate = (rates[i] & 0x7f) * 5;
3438 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
3439 struct ieee80211_rate *srate =
3440 &sband->bitrates[ridx];
3441 if (rate == srate->bitrate) {
3446 if (ridx == sband->n_bitrates)
3447 return 0; /* rate not found */
3453 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
3454 u8 *rates, u8 rates_len,
3455 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
3459 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
3461 for (i = 0; i < rates_len; i++) {
3464 ridx = rates[i] / 8;
3465 rbit = BIT(rates[i] % 8);
3467 /* check validity */
3468 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
3471 /* check availability */
3472 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
3481 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
3485 switch (vht_mcs_map) {
3486 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
3488 case IEEE80211_VHT_MCS_SUPPORT_0_7:
3491 case IEEE80211_VHT_MCS_SUPPORT_0_8:
3494 case IEEE80211_VHT_MCS_SUPPORT_0_9:
3504 static void vht_build_mcs_mask(u16 vht_mcs_map,
3505 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
3509 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
3510 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
3515 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
3516 struct nl80211_txrate_vht *txrate,
3517 u16 mcs[NL80211_VHT_NSS_MAX])
3519 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3520 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
3523 if (!sband->vht_cap.vht_supported)
3526 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
3528 /* Build vht_mcs_mask from VHT capabilities */
3529 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
3531 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3532 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
3533 mcs[i] = txrate->mcs[i];
3541 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
3542 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
3543 .len = NL80211_MAX_SUPP_RATES },
3544 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
3545 .len = NL80211_MAX_SUPP_HT_RATES },
3546 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
3547 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
3550 static int nl80211_parse_tx_bitrate_mask(struct genl_info *info,
3551 struct cfg80211_bitrate_mask *mask)
3553 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
3554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3556 struct nlattr *tx_rates;
3557 struct ieee80211_supported_band *sband;
3560 memset(mask, 0, sizeof(*mask));
3561 /* Default to all rates enabled */
3562 for (i = 0; i < NUM_NL80211_BANDS; i++) {
3563 sband = rdev->wiphy.bands[i];
3568 mask->control[i].legacy = (1 << sband->n_bitrates) - 1;
3569 memcpy(mask->control[i].ht_mcs,
3570 sband->ht_cap.mcs.rx_mask,
3571 sizeof(mask->control[i].ht_mcs));
3573 if (!sband->vht_cap.vht_supported)
3576 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
3577 vht_build_mcs_mask(vht_tx_mcs_map, mask->control[i].vht_mcs);
3580 /* if no rates are given set it back to the defaults */
3581 if (!info->attrs[NL80211_ATTR_TX_RATES])
3584 /* The nested attribute uses enum nl80211_band as the index. This maps
3585 * directly to the enum nl80211_band values used in cfg80211.
3587 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
3588 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
3589 enum nl80211_band band = nla_type(tx_rates);
3592 if (band < 0 || band >= NUM_NL80211_BANDS)
3594 sband = rdev->wiphy.bands[band];
3597 err = nla_parse_nested(tb, NL80211_TXRATE_MAX, tx_rates,
3598 nl80211_txattr_policy, info->extack);
3601 if (tb[NL80211_TXRATE_LEGACY]) {
3602 mask->control[band].legacy = rateset_to_mask(
3604 nla_data(tb[NL80211_TXRATE_LEGACY]),
3605 nla_len(tb[NL80211_TXRATE_LEGACY]));
3606 if ((mask->control[band].legacy == 0) &&
3607 nla_len(tb[NL80211_TXRATE_LEGACY]))
3610 if (tb[NL80211_TXRATE_HT]) {
3611 if (!ht_rateset_to_mask(
3613 nla_data(tb[NL80211_TXRATE_HT]),
3614 nla_len(tb[NL80211_TXRATE_HT]),
3615 mask->control[band].ht_mcs))
3618 if (tb[NL80211_TXRATE_VHT]) {
3619 if (!vht_set_mcs_mask(
3621 nla_data(tb[NL80211_TXRATE_VHT]),
3622 mask->control[band].vht_mcs))
3625 if (tb[NL80211_TXRATE_GI]) {
3626 mask->control[band].gi =
3627 nla_get_u8(tb[NL80211_TXRATE_GI]);
3628 if (mask->control[band].gi > NL80211_TXRATE_FORCE_LGI)
3632 if (mask->control[band].legacy == 0) {
3633 /* don't allow empty legacy rates if HT or VHT
3634 * are not even supported.
3636 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
3637 rdev->wiphy.bands[band]->vht_cap.vht_supported))
3640 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
3641 if (mask->control[band].ht_mcs[i])
3644 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
3645 if (mask->control[band].vht_mcs[i])
3648 /* legacy and mcs rates may not be both empty */
3657 static int validate_beacon_tx_rate(struct cfg80211_registered_device *rdev,
3658 enum nl80211_band band,
3659 struct cfg80211_bitrate_mask *beacon_rate)
3661 u32 count_ht, count_vht, i;
3662 u32 rate = beacon_rate->control[band].legacy;
3664 /* Allow only one rate */
3665 if (hweight32(rate) > 1)
3669 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
3670 if (hweight8(beacon_rate->control[band].ht_mcs[i]) > 1) {
3672 } else if (beacon_rate->control[band].ht_mcs[i]) {
3677 if (count_ht && rate)
3682 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
3683 if (hweight16(beacon_rate->control[band].vht_mcs[i]) > 1) {
3685 } else if (beacon_rate->control[band].vht_mcs[i]) {
3690 if (count_vht && rate)
3694 if ((count_ht && count_vht) || (!rate && !count_ht && !count_vht))
3698 !wiphy_ext_feature_isset(&rdev->wiphy,
3699 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY))
3702 !wiphy_ext_feature_isset(&rdev->wiphy,
3703 NL80211_EXT_FEATURE_BEACON_RATE_HT))
3706 !wiphy_ext_feature_isset(&rdev->wiphy,
3707 NL80211_EXT_FEATURE_BEACON_RATE_VHT))
3713 static int nl80211_parse_beacon(struct nlattr *attrs[],
3714 struct cfg80211_beacon_data *bcn)
3716 bool haveinfo = false;
3718 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3719 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3720 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3721 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3724 memset(bcn, 0, sizeof(*bcn));
3726 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3727 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3728 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3734 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3735 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3736 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3743 if (attrs[NL80211_ATTR_IE]) {
3744 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3745 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3748 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3749 bcn->proberesp_ies =
3750 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3751 bcn->proberesp_ies_len =
3752 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3755 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3756 bcn->assocresp_ies =
3757 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3758 bcn->assocresp_ies_len =
3759 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3762 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3763 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3764 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3770 static void nl80211_check_ap_rate_selectors(struct cfg80211_ap_settings *params,
3778 for (i = 0; i < rates[1]; i++) {
3779 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
3780 params->ht_required = true;
3781 if (rates[2 + i] == BSS_MEMBERSHIP_SELECTOR_VHT_PHY)
3782 params->vht_required = true;
3787 * Since the nl80211 API didn't include, from the beginning, attributes about
3788 * HT/VHT requirements/capabilities, we parse them out of the IEs for the
3789 * benefit of drivers that rebuild IEs in the firmware.
3791 static void nl80211_calculate_ap_params(struct cfg80211_ap_settings *params)
3793 const struct cfg80211_beacon_data *bcn = ¶ms->beacon;
3794 size_t ies_len = bcn->beacon_ies_len;
3795 const u8 *ies = bcn->beacon_ies;
3799 rates = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies, ies_len);
3800 nl80211_check_ap_rate_selectors(params, rates);
3802 rates = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, ies, ies_len);
3803 nl80211_check_ap_rate_selectors(params, rates);
3805 cap = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len);
3806 if (cap && cap[1] >= sizeof(*params->ht_cap))
3807 params->ht_cap = (void *)(cap + 2);
3808 cap = cfg80211_find_ie(WLAN_EID_VHT_CAPABILITY, ies, ies_len);
3809 if (cap && cap[1] >= sizeof(*params->vht_cap))
3810 params->vht_cap = (void *)(cap + 2);
3813 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3814 struct cfg80211_ap_settings *params)
3816 struct wireless_dev *wdev;
3819 list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
3820 if (wdev->iftype != NL80211_IFTYPE_AP &&
3821 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3824 if (!wdev->preset_chandef.chan)
3827 params->chandef = wdev->preset_chandef;
3835 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3836 enum nl80211_auth_type auth_type,
3837 enum nl80211_commands cmd)
3839 if (auth_type > NL80211_AUTHTYPE_MAX)
3843 case NL80211_CMD_AUTHENTICATE:
3844 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3845 auth_type == NL80211_AUTHTYPE_SAE)
3847 if (!wiphy_ext_feature_isset(&rdev->wiphy,
3848 NL80211_EXT_FEATURE_FILS_STA) &&
3849 (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3850 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3851 auth_type == NL80211_AUTHTYPE_FILS_PK))
3854 case NL80211_CMD_CONNECT:
3855 /* SAE not supported yet */
3856 if (auth_type == NL80211_AUTHTYPE_SAE)
3858 /* FILS with SK PFS or PK not supported yet */
3859 if (auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3860 auth_type == NL80211_AUTHTYPE_FILS_PK)
3862 if (!wiphy_ext_feature_isset(
3864 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
3865 auth_type == NL80211_AUTHTYPE_FILS_SK)
3868 case NL80211_CMD_START_AP:
3869 /* SAE not supported yet */
3870 if (auth_type == NL80211_AUTHTYPE_SAE)
3872 /* FILS not supported yet */
3873 if (auth_type == NL80211_AUTHTYPE_FILS_SK ||
3874 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
3875 auth_type == NL80211_AUTHTYPE_FILS_PK)
3883 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3886 struct net_device *dev = info->user_ptr[1];
3887 struct wireless_dev *wdev = dev->ieee80211_ptr;
3888 struct cfg80211_ap_settings params;
3891 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3892 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3895 if (!rdev->ops->start_ap)
3898 if (wdev->beacon_interval)
3901 memset(¶ms, 0, sizeof(params));
3903 /* these are required for START_AP */
3904 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3905 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3906 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3909 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3913 params.beacon_interval =
3914 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3915 params.dtim_period =
3916 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3918 err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
3919 params.beacon_interval);
3924 * In theory, some of these attributes should be required here
3925 * but since they were not used when the command was originally
3926 * added, keep them optional for old user space programs to let
3927 * them continue to work with drivers that do not need the
3928 * additional information -- drivers must check!
3930 if (info->attrs[NL80211_ATTR_SSID]) {
3931 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3933 nla_len(info->attrs[NL80211_ATTR_SSID]);
3934 if (params.ssid_len == 0 ||
3935 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3939 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3940 params.hidden_ssid = nla_get_u32(
3941 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3942 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3943 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3944 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3948 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3950 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3951 params.auth_type = nla_get_u32(
3952 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3953 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3954 NL80211_CMD_START_AP))
3957 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3959 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3960 NL80211_MAX_NR_CIPHER_SUITES);
3964 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3965 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3967 params.inactivity_timeout = nla_get_u16(
3968 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3971 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3974 params.p2p_ctwindow =
3975 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3976 if (params.p2p_ctwindow > 127)
3978 if (params.p2p_ctwindow != 0 &&
3979 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3983 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3986 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3988 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3991 params.p2p_opp_ps = tmp;
3992 if (params.p2p_opp_ps != 0 &&
3993 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3997 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3998 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
4001 } else if (wdev->preset_chandef.chan) {
4002 params.chandef = wdev->preset_chandef;
4003 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
4006 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
4010 if (info->attrs[NL80211_ATTR_TX_RATES]) {
4011 err = nl80211_parse_tx_bitrate_mask(info, ¶ms.beacon_rate);
4015 err = validate_beacon_tx_rate(rdev, params.chandef.chan->band,
4016 ¶ms.beacon_rate);
4021 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
4023 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
4024 switch (params.smps_mode) {
4025 case NL80211_SMPS_OFF:
4027 case NL80211_SMPS_STATIC:
4028 if (!(rdev->wiphy.features &
4029 NL80211_FEATURE_STATIC_SMPS))
4032 case NL80211_SMPS_DYNAMIC:
4033 if (!(rdev->wiphy.features &
4034 NL80211_FEATURE_DYNAMIC_SMPS))
4041 params.smps_mode = NL80211_SMPS_OFF;
4044 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
4045 if (params.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ])
4048 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
4049 params.acl = parse_acl_data(&rdev->wiphy, info);
4050 if (IS_ERR(params.acl))
4051 return PTR_ERR(params.acl);
4054 nl80211_calculate_ap_params(¶ms);
4057 err = rdev_start_ap(rdev, dev, ¶ms);
4059 wdev->preset_chandef = params.chandef;
4060 wdev->beacon_interval = params.beacon_interval;
4061 wdev->chandef = params.chandef;
4062 wdev->ssid_len = params.ssid_len;
4063 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
4072 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
4074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4075 struct net_device *dev = info->user_ptr[1];
4076 struct wireless_dev *wdev = dev->ieee80211_ptr;
4077 struct cfg80211_beacon_data params;
4080 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4081 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4084 if (!rdev->ops->change_beacon)
4087 if (!wdev->beacon_interval)
4090 err = nl80211_parse_beacon(info->attrs, ¶ms);
4095 err = rdev_change_beacon(rdev, dev, ¶ms);
4101 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
4103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4104 struct net_device *dev = info->user_ptr[1];
4106 return cfg80211_stop_ap(rdev, dev, false);
4109 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
4110 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
4111 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
4112 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
4113 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
4114 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
4115 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
4118 static int parse_station_flags(struct genl_info *info,
4119 enum nl80211_iftype iftype,
4120 struct station_parameters *params)
4122 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
4127 * Try parsing the new attribute first so userspace
4128 * can specify both for older kernels.
4130 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
4132 struct nl80211_sta_flag_update *sta_flags;
4134 sta_flags = nla_data(nla);
4135 params->sta_flags_mask = sta_flags->mask;
4136 params->sta_flags_set = sta_flags->set;
4137 params->sta_flags_set &= params->sta_flags_mask;
4138 if ((params->sta_flags_mask |
4139 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
4144 /* if present, parse the old attribute */
4146 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
4150 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, nla,
4151 sta_flags_policy, info->extack))
4155 * Only allow certain flags for interface types so that
4156 * other attributes are silently ignored. Remember that
4157 * this is backward compatibility code with old userspace
4158 * and shouldn't be hit in other cases anyway.
4161 case NL80211_IFTYPE_AP:
4162 case NL80211_IFTYPE_AP_VLAN:
4163 case NL80211_IFTYPE_P2P_GO:
4164 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4165 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4166 BIT(NL80211_STA_FLAG_WME) |
4167 BIT(NL80211_STA_FLAG_MFP);
4169 case NL80211_IFTYPE_P2P_CLIENT:
4170 case NL80211_IFTYPE_STATION:
4171 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
4172 BIT(NL80211_STA_FLAG_TDLS_PEER);
4174 case NL80211_IFTYPE_MESH_POINT:
4175 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4176 BIT(NL80211_STA_FLAG_MFP) |
4177 BIT(NL80211_STA_FLAG_AUTHORIZED);
4182 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
4184 params->sta_flags_set |= (1<<flag);
4186 /* no longer support new API additions in old API */
4187 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
4195 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
4198 struct nlattr *rate;
4201 enum nl80211_rate_info rate_flg;
4203 rate = nla_nest_start(msg, attr);
4207 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
4208 bitrate = cfg80211_calculate_bitrate(info);
4209 /* report 16-bit bitrate only if we can */
4210 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
4212 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
4214 if (bitrate_compat > 0 &&
4215 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
4219 case RATE_INFO_BW_5:
4220 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
4222 case RATE_INFO_BW_10:
4223 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
4228 case RATE_INFO_BW_20:
4231 case RATE_INFO_BW_40:
4232 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
4234 case RATE_INFO_BW_80:
4235 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
4237 case RATE_INFO_BW_160:
4238 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
4242 if (rate_flg && nla_put_flag(msg, rate_flg))
4245 if (info->flags & RATE_INFO_FLAGS_MCS) {
4246 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
4248 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4249 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4251 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
4252 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
4254 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
4256 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
4257 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
4261 nla_nest_end(msg, rate);
4265 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
4274 attr = nla_nest_start(msg, id);
4278 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
4279 if (!(mask & BIT(i)))
4282 if (nla_put_u8(msg, i, signal[i]))
4286 nla_nest_end(msg, attr);
4291 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
4293 struct cfg80211_registered_device *rdev,
4294 struct net_device *dev,
4295 const u8 *mac_addr, struct station_info *sinfo)
4298 struct nlattr *sinfoattr, *bss_param;
4300 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
4304 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4305 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
4306 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
4307 goto nla_put_failure;
4309 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
4311 goto nla_put_failure;
4313 #define PUT_SINFO(attr, memb, type) do { \
4314 BUILD_BUG_ON(sizeof(type) == sizeof(u64)); \
4315 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4316 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
4318 goto nla_put_failure; \
4320 #define PUT_SINFO_U64(attr, memb) do { \
4321 if (sinfo->filled & (1ULL << NL80211_STA_INFO_ ## attr) && \
4322 nla_put_u64_64bit(msg, NL80211_STA_INFO_ ## attr, \
4323 sinfo->memb, NL80211_STA_INFO_PAD)) \
4324 goto nla_put_failure; \
4327 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
4328 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
4330 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
4331 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
4332 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
4333 (u32)sinfo->rx_bytes))
4334 goto nla_put_failure;
4336 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
4337 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
4338 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
4339 (u32)sinfo->tx_bytes))
4340 goto nla_put_failure;
4342 PUT_SINFO_U64(RX_BYTES64, rx_bytes);
4343 PUT_SINFO_U64(TX_BYTES64, tx_bytes);
4344 PUT_SINFO(LLID, llid, u16);
4345 PUT_SINFO(PLID, plid, u16);
4346 PUT_SINFO(PLINK_STATE, plink_state, u8);
4347 PUT_SINFO_U64(RX_DURATION, rx_duration);
4349 switch (rdev->wiphy.signal_type) {
4350 case CFG80211_SIGNAL_TYPE_MBM:
4351 PUT_SINFO(SIGNAL, signal, u8);
4352 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
4357 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
4358 if (!nl80211_put_signal(msg, sinfo->chains,
4359 sinfo->chain_signal,
4360 NL80211_STA_INFO_CHAIN_SIGNAL))
4361 goto nla_put_failure;
4363 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
4364 if (!nl80211_put_signal(msg, sinfo->chains,
4365 sinfo->chain_signal_avg,
4366 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
4367 goto nla_put_failure;
4369 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
4370 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
4371 NL80211_STA_INFO_TX_BITRATE))
4372 goto nla_put_failure;
4374 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
4375 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
4376 NL80211_STA_INFO_RX_BITRATE))
4377 goto nla_put_failure;
4380 PUT_SINFO(RX_PACKETS, rx_packets, u32);
4381 PUT_SINFO(TX_PACKETS, tx_packets, u32);
4382 PUT_SINFO(TX_RETRIES, tx_retries, u32);
4383 PUT_SINFO(TX_FAILED, tx_failed, u32);
4384 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
4385 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
4386 PUT_SINFO(LOCAL_PM, local_pm, u32);
4387 PUT_SINFO(PEER_PM, peer_pm, u32);
4388 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
4390 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
4391 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
4393 goto nla_put_failure;
4395 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
4396 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
4397 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
4398 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
4399 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
4400 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
4401 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
4402 sinfo->bss_param.dtim_period) ||
4403 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
4404 sinfo->bss_param.beacon_interval))
4405 goto nla_put_failure;
4407 nla_nest_end(msg, bss_param);
4409 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
4410 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
4411 sizeof(struct nl80211_sta_flag_update),
4413 goto nla_put_failure;
4415 PUT_SINFO_U64(T_OFFSET, t_offset);
4416 PUT_SINFO_U64(RX_DROP_MISC, rx_dropped_misc);
4417 PUT_SINFO_U64(BEACON_RX, rx_beacon);
4418 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
4421 #undef PUT_SINFO_U64
4423 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
4424 struct nlattr *tidsattr;
4427 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
4429 goto nla_put_failure;
4431 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
4432 struct cfg80211_tid_stats *tidstats;
4433 struct nlattr *tidattr;
4435 tidstats = &sinfo->pertid[tid];
4437 if (!tidstats->filled)
4440 tidattr = nla_nest_start(msg, tid + 1);
4442 goto nla_put_failure;
4444 #define PUT_TIDVAL_U64(attr, memb) do { \
4445 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
4446 nla_put_u64_64bit(msg, NL80211_TID_STATS_ ## attr, \
4447 tidstats->memb, NL80211_TID_STATS_PAD)) \
4448 goto nla_put_failure; \
4451 PUT_TIDVAL_U64(RX_MSDU, rx_msdu);
4452 PUT_TIDVAL_U64(TX_MSDU, tx_msdu);
4453 PUT_TIDVAL_U64(TX_MSDU_RETRIES, tx_msdu_retries);
4454 PUT_TIDVAL_U64(TX_MSDU_FAILED, tx_msdu_failed);
4456 #undef PUT_TIDVAL_U64
4457 nla_nest_end(msg, tidattr);
4460 nla_nest_end(msg, tidsattr);
4463 nla_nest_end(msg, sinfoattr);
4465 if (sinfo->assoc_req_ies_len &&
4466 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
4467 sinfo->assoc_req_ies))
4468 goto nla_put_failure;
4470 genlmsg_end(msg, hdr);
4474 genlmsg_cancel(msg, hdr);
4478 static int nl80211_dump_station(struct sk_buff *skb,
4479 struct netlink_callback *cb)
4481 struct station_info sinfo;
4482 struct cfg80211_registered_device *rdev;
4483 struct wireless_dev *wdev;
4484 u8 mac_addr[ETH_ALEN];
4485 int sta_idx = cb->args[2];
4489 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4493 if (!wdev->netdev) {
4498 if (!rdev->ops->dump_station) {
4504 memset(&sinfo, 0, sizeof(sinfo));
4505 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
4512 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
4513 NETLINK_CB(cb->skb).portid,
4514 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4515 rdev, wdev->netdev, mac_addr,
4523 cb->args[2] = sta_idx;
4531 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
4533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4534 struct net_device *dev = info->user_ptr[1];
4535 struct station_info sinfo;
4536 struct sk_buff *msg;
4537 u8 *mac_addr = NULL;
4540 memset(&sinfo, 0, sizeof(sinfo));
4542 if (!info->attrs[NL80211_ATTR_MAC])
4545 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4547 if (!rdev->ops->get_station)
4550 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
4554 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4558 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
4559 info->snd_portid, info->snd_seq, 0,
4560 rdev, dev, mac_addr, &sinfo) < 0) {
4565 return genlmsg_reply(msg, info);
4568 int cfg80211_check_station_change(struct wiphy *wiphy,
4569 struct station_parameters *params,
4570 enum cfg80211_station_type statype)
4572 if (params->listen_interval != -1 &&
4573 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4576 if (params->support_p2p_ps != -1 &&
4577 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4581 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
4582 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
4585 /* When you run into this, adjust the code below for the new flag */
4586 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4589 case CFG80211_STA_MESH_PEER_KERNEL:
4590 case CFG80211_STA_MESH_PEER_USER:
4592 * No ignoring the TDLS flag here -- the userspace mesh
4593 * code doesn't have the bug of including TDLS in the
4596 if (params->sta_flags_mask &
4597 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4598 BIT(NL80211_STA_FLAG_MFP) |
4599 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4602 case CFG80211_STA_TDLS_PEER_SETUP:
4603 case CFG80211_STA_TDLS_PEER_ACTIVE:
4604 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4606 /* ignore since it can't change */
4607 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4610 /* disallow mesh-specific things */
4611 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4613 if (params->local_pm)
4615 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4619 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4620 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4621 /* TDLS can't be set, ... */
4622 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4625 * ... but don't bother the driver with it. This works around
4626 * a hostapd/wpa_supplicant issue -- it always includes the
4627 * TLDS_PEER flag in the mask even for AP mode.
4629 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4632 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4633 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4634 /* reject other things that can't change */
4635 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4637 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4639 if (params->supported_rates)
4641 if (params->ext_capab || params->ht_capa || params->vht_capa)
4645 if (statype != CFG80211_STA_AP_CLIENT &&
4646 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4652 case CFG80211_STA_AP_MLME_CLIENT:
4653 /* Use this only for authorizing/unauthorizing a station */
4654 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4657 case CFG80211_STA_AP_CLIENT:
4658 case CFG80211_STA_AP_CLIENT_UNASSOC:
4659 /* accept only the listed bits */
4660 if (params->sta_flags_mask &
4661 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4662 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4663 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4664 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4665 BIT(NL80211_STA_FLAG_WME) |
4666 BIT(NL80211_STA_FLAG_MFP)))
4669 /* but authenticated/associated only if driver handles it */
4670 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4671 params->sta_flags_mask &
4672 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4673 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4676 case CFG80211_STA_IBSS:
4677 case CFG80211_STA_AP_STA:
4678 /* reject any changes other than AUTHORIZED */
4679 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4682 case CFG80211_STA_TDLS_PEER_SETUP:
4683 /* reject any changes other than AUTHORIZED or WME */
4684 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4685 BIT(NL80211_STA_FLAG_WME)))
4687 /* force (at least) rates when authorizing */
4688 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4689 !params->supported_rates)
4692 case CFG80211_STA_TDLS_PEER_ACTIVE:
4693 /* reject any changes */
4695 case CFG80211_STA_MESH_PEER_KERNEL:
4696 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4699 case CFG80211_STA_MESH_PEER_USER:
4700 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4701 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4707 * Older kernel versions ignored this attribute entirely, so don't
4708 * reject attempts to update it but mark it as unused instead so the
4709 * driver won't look at the data.
4711 if (statype != CFG80211_STA_AP_CLIENT_UNASSOC &&
4712 statype != CFG80211_STA_TDLS_PEER_SETUP)
4713 params->opmode_notif_used = false;
4717 EXPORT_SYMBOL(cfg80211_check_station_change);
4720 * Get vlan interface making sure it is running and on the right wiphy.
4722 static struct net_device *get_vlan(struct genl_info *info,
4723 struct cfg80211_registered_device *rdev)
4725 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4726 struct net_device *v;
4732 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4734 return ERR_PTR(-ENODEV);
4736 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4741 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4742 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4743 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4748 if (!netif_running(v)) {
4756 return ERR_PTR(ret);
4759 static const struct nla_policy
4760 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4761 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4762 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4765 static int nl80211_parse_sta_wme(struct genl_info *info,
4766 struct station_parameters *params)
4768 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4772 /* parse WME attributes if present */
4773 if (!info->attrs[NL80211_ATTR_STA_WME])
4776 nla = info->attrs[NL80211_ATTR_STA_WME];
4777 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4778 nl80211_sta_wme_policy, info->extack);
4782 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4783 params->uapsd_queues = nla_get_u8(
4784 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4785 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4788 if (tb[NL80211_STA_WME_MAX_SP])
4789 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4791 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4794 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4799 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4800 struct station_parameters *params)
4802 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4803 params->supported_channels =
4804 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4805 params->supported_channels_len =
4806 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4808 * Need to include at least one (first channel, number of
4809 * channels) tuple for each subband, and must have proper
4810 * tuples for the rest of the data as well.
4812 if (params->supported_channels_len < 2)
4814 if (params->supported_channels_len % 2)
4818 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4819 params->supported_oper_classes =
4820 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4821 params->supported_oper_classes_len =
4822 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4824 * The value of the Length field of the Supported Operating
4825 * Classes element is between 2 and 253.
4827 if (params->supported_oper_classes_len < 2 ||
4828 params->supported_oper_classes_len > 253)
4834 static int nl80211_set_station_tdls(struct genl_info *info,
4835 struct station_parameters *params)
4838 /* Dummy STA entry gets updated once the peer capabilities are known */
4839 if (info->attrs[NL80211_ATTR_PEER_AID])
4840 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4841 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4843 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4844 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4846 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4848 err = nl80211_parse_sta_channel_info(info, params);
4852 return nl80211_parse_sta_wme(info, params);
4855 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4858 struct net_device *dev = info->user_ptr[1];
4859 struct station_parameters params;
4863 memset(¶ms, 0, sizeof(params));
4865 if (!rdev->ops->change_station)
4869 * AID and listen_interval properties can be set only for unassociated
4870 * station. Include these parameters here and will check them in
4871 * cfg80211_check_station_change().
4873 if (info->attrs[NL80211_ATTR_STA_AID])
4874 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4876 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4877 params.listen_interval =
4878 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4880 params.listen_interval = -1;
4882 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
4885 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
4886 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
4889 params.support_p2p_ps = tmp;
4891 params.support_p2p_ps = -1;
4894 if (!info->attrs[NL80211_ATTR_MAC])
4897 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4899 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4900 params.supported_rates =
4901 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4902 params.supported_rates_len =
4903 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4906 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4908 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4909 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4912 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4914 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4915 params.ext_capab_len =
4916 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4919 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4922 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4923 params.plink_action =
4924 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4925 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4929 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4930 params.plink_state =
4931 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4932 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4934 if (info->attrs[NL80211_ATTR_MESH_PEER_AID]) {
4935 params.peer_aid = nla_get_u16(
4936 info->attrs[NL80211_ATTR_MESH_PEER_AID]);
4937 if (params.peer_aid > IEEE80211_MAX_AID)
4940 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4943 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4944 enum nl80211_mesh_power_mode pm = nla_get_u32(
4945 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4947 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4948 pm > NL80211_MESH_POWER_MAX)
4951 params.local_pm = pm;
4954 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4955 params.opmode_notif_used = true;
4956 params.opmode_notif =
4957 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4960 /* Include parameters for TDLS peer (will check later) */
4961 err = nl80211_set_station_tdls(info, ¶ms);
4965 params.vlan = get_vlan(info, rdev);
4966 if (IS_ERR(params.vlan))
4967 return PTR_ERR(params.vlan);
4969 switch (dev->ieee80211_ptr->iftype) {
4970 case NL80211_IFTYPE_AP:
4971 case NL80211_IFTYPE_AP_VLAN:
4972 case NL80211_IFTYPE_P2P_GO:
4973 case NL80211_IFTYPE_P2P_CLIENT:
4974 case NL80211_IFTYPE_STATION:
4975 case NL80211_IFTYPE_ADHOC:
4976 case NL80211_IFTYPE_MESH_POINT:
4983 /* driver will call cfg80211_check_station_change() */
4984 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4988 dev_put(params.vlan);
4993 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4997 struct net_device *dev = info->user_ptr[1];
4998 struct station_parameters params;
4999 u8 *mac_addr = NULL;
5000 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
5001 BIT(NL80211_STA_FLAG_ASSOCIATED);
5003 memset(¶ms, 0, sizeof(params));
5005 if (!rdev->ops->add_station)
5008 if (!info->attrs[NL80211_ATTR_MAC])
5011 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
5014 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
5017 if (!info->attrs[NL80211_ATTR_STA_AID] &&
5018 !info->attrs[NL80211_ATTR_PEER_AID])
5021 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5022 params.supported_rates =
5023 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5024 params.supported_rates_len =
5025 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
5026 params.listen_interval =
5027 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
5029 if (info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]) {
5032 tmp = nla_get_u8(info->attrs[NL80211_ATTR_STA_SUPPORT_P2P_PS]);
5033 if (tmp >= NUM_NL80211_P2P_PS_STATUS)
5036 params.support_p2p_ps = tmp;
5039 * if not specified, assume it's supported for P2P GO interface,
5040 * and is NOT supported for AP interface
5042 params.support_p2p_ps =
5043 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO;
5046 if (info->attrs[NL80211_ATTR_PEER_AID])
5047 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
5049 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
5050 if (!params.aid || params.aid > IEEE80211_MAX_AID)
5053 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
5055 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
5056 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
5059 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
5061 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5062 params.ext_capab_len =
5063 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
5066 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
5068 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5070 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
5072 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
5074 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
5075 params.opmode_notif_used = true;
5076 params.opmode_notif =
5077 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
5080 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
5081 params.plink_action =
5082 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
5083 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
5087 err = nl80211_parse_sta_channel_info(info, ¶ms);
5091 err = nl80211_parse_sta_wme(info, ¶ms);
5095 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
5098 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
5099 * as userspace might just pass through the capabilities from the IEs
5100 * directly, rather than enforcing this restriction and returning an
5101 * error in this case.
5103 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
5104 params.ht_capa = NULL;
5105 params.vht_capa = NULL;
5108 /* When you run into this, adjust the code below for the new flag */
5109 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
5111 switch (dev->ieee80211_ptr->iftype) {
5112 case NL80211_IFTYPE_AP:
5113 case NL80211_IFTYPE_AP_VLAN:
5114 case NL80211_IFTYPE_P2P_GO:
5115 /* ignore WME attributes if iface/sta is not capable */
5116 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
5117 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
5118 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5120 /* TDLS peers cannot be added */
5121 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5122 info->attrs[NL80211_ATTR_PEER_AID])
5124 /* but don't bother the driver with it */
5125 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
5127 /* allow authenticated/associated only if driver handles it */
5128 if (!(rdev->wiphy.features &
5129 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
5130 params.sta_flags_mask & auth_assoc)
5133 /* Older userspace, or userspace wanting to be compatible with
5134 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
5135 * and assoc flags in the mask, but assumes the station will be
5136 * added as associated anyway since this was the required driver
5137 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
5139 * In order to not bother drivers with this quirk in the API
5140 * set the flags in both the mask and set for new stations in
5143 if (!(params.sta_flags_mask & auth_assoc)) {
5144 params.sta_flags_mask |= auth_assoc;
5145 params.sta_flags_set |= auth_assoc;
5148 /* must be last in here for error handling */
5149 params.vlan = get_vlan(info, rdev);
5150 if (IS_ERR(params.vlan))
5151 return PTR_ERR(params.vlan);
5153 case NL80211_IFTYPE_MESH_POINT:
5154 /* ignore uAPSD data */
5155 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5157 /* associated is disallowed */
5158 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
5160 /* TDLS peers cannot be added */
5161 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
5162 info->attrs[NL80211_ATTR_PEER_AID])
5165 case NL80211_IFTYPE_STATION:
5166 case NL80211_IFTYPE_P2P_CLIENT:
5167 /* ignore uAPSD data */
5168 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
5170 /* these are disallowed */
5171 if (params.sta_flags_mask &
5172 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
5173 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
5175 /* Only TDLS peers can be added */
5176 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
5178 /* Can only add if TDLS ... */
5179 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
5181 /* ... with external setup is supported */
5182 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
5185 * Older wpa_supplicant versions always mark the TDLS peer
5186 * as authorized, but it shouldn't yet be.
5188 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
5194 /* be aware of params.vlan when changing code here */
5196 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
5199 dev_put(params.vlan);
5203 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
5205 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5206 struct net_device *dev = info->user_ptr[1];
5207 struct station_del_parameters params;
5209 memset(¶ms, 0, sizeof(params));
5211 if (info->attrs[NL80211_ATTR_MAC])
5212 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
5214 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5215 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5216 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5217 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5220 if (!rdev->ops->del_station)
5223 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
5225 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
5226 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
5227 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
5230 /* Default to Deauthentication frame */
5231 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
5234 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
5235 params.reason_code =
5236 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5237 if (params.reason_code == 0)
5238 return -EINVAL; /* 0 is reserved */
5240 /* Default to reason code 2 */
5241 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
5244 return rdev_del_station(rdev, dev, ¶ms);
5247 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
5248 int flags, struct net_device *dev,
5249 u8 *dst, u8 *next_hop,
5250 struct mpath_info *pinfo)
5253 struct nlattr *pinfoattr;
5255 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
5259 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5260 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
5261 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
5262 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
5263 goto nla_put_failure;
5265 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
5267 goto nla_put_failure;
5268 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
5269 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
5271 goto nla_put_failure;
5272 if (((pinfo->filled & MPATH_INFO_SN) &&
5273 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
5274 ((pinfo->filled & MPATH_INFO_METRIC) &&
5275 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
5277 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
5278 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
5280 ((pinfo->filled & MPATH_INFO_FLAGS) &&
5281 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
5283 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
5284 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
5285 pinfo->discovery_timeout)) ||
5286 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
5287 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
5288 pinfo->discovery_retries)))
5289 goto nla_put_failure;
5291 nla_nest_end(msg, pinfoattr);
5293 genlmsg_end(msg, hdr);
5297 genlmsg_cancel(msg, hdr);
5301 static int nl80211_dump_mpath(struct sk_buff *skb,
5302 struct netlink_callback *cb)
5304 struct mpath_info pinfo;
5305 struct cfg80211_registered_device *rdev;
5306 struct wireless_dev *wdev;
5308 u8 next_hop[ETH_ALEN];
5309 int path_idx = cb->args[2];
5313 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5317 if (!rdev->ops->dump_mpath) {
5322 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5328 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
5335 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5336 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5337 wdev->netdev, dst, next_hop,
5345 cb->args[2] = path_idx;
5352 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
5354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5356 struct net_device *dev = info->user_ptr[1];
5357 struct mpath_info pinfo;
5358 struct sk_buff *msg;
5360 u8 next_hop[ETH_ALEN];
5362 memset(&pinfo, 0, sizeof(pinfo));
5364 if (!info->attrs[NL80211_ATTR_MAC])
5367 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5369 if (!rdev->ops->get_mpath)
5372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5375 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
5379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5383 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5384 dev, dst, next_hop, &pinfo) < 0) {
5389 return genlmsg_reply(msg, info);
5392 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
5394 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5395 struct net_device *dev = info->user_ptr[1];
5397 u8 *next_hop = NULL;
5399 if (!info->attrs[NL80211_ATTR_MAC])
5402 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5405 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5406 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5408 if (!rdev->ops->change_mpath)
5411 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5414 return rdev_change_mpath(rdev, dev, dst, next_hop);
5417 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
5419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5420 struct net_device *dev = info->user_ptr[1];
5422 u8 *next_hop = NULL;
5424 if (!info->attrs[NL80211_ATTR_MAC])
5427 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
5430 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5431 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
5433 if (!rdev->ops->add_mpath)
5436 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5439 return rdev_add_mpath(rdev, dev, dst, next_hop);
5442 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
5444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5445 struct net_device *dev = info->user_ptr[1];
5448 if (info->attrs[NL80211_ATTR_MAC])
5449 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5451 if (!rdev->ops->del_mpath)
5454 return rdev_del_mpath(rdev, dev, dst);
5457 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
5459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5461 struct net_device *dev = info->user_ptr[1];
5462 struct mpath_info pinfo;
5463 struct sk_buff *msg;
5467 memset(&pinfo, 0, sizeof(pinfo));
5469 if (!info->attrs[NL80211_ATTR_MAC])
5472 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
5474 if (!rdev->ops->get_mpp)
5477 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5480 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
5484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5488 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
5489 dev, dst, mpp, &pinfo) < 0) {
5494 return genlmsg_reply(msg, info);
5497 static int nl80211_dump_mpp(struct sk_buff *skb,
5498 struct netlink_callback *cb)
5500 struct mpath_info pinfo;
5501 struct cfg80211_registered_device *rdev;
5502 struct wireless_dev *wdev;
5505 int path_idx = cb->args[2];
5509 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5513 if (!rdev->ops->dump_mpp) {
5518 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
5524 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
5531 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
5532 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5533 wdev->netdev, dst, mpp,
5541 cb->args[2] = path_idx;
5548 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
5550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5551 struct net_device *dev = info->user_ptr[1];
5552 struct wireless_dev *wdev = dev->ieee80211_ptr;
5553 struct bss_parameters params;
5556 memset(¶ms, 0, sizeof(params));
5557 /* default to not changing parameters */
5558 params.use_cts_prot = -1;
5559 params.use_short_preamble = -1;
5560 params.use_short_slot_time = -1;
5561 params.ap_isolate = -1;
5562 params.ht_opmode = -1;
5563 params.p2p_ctwindow = -1;
5564 params.p2p_opp_ps = -1;
5566 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
5567 params.use_cts_prot =
5568 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
5569 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
5570 params.use_short_preamble =
5571 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
5572 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
5573 params.use_short_slot_time =
5574 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
5575 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5576 params.basic_rates =
5577 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5578 params.basic_rates_len =
5579 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5581 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
5582 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
5583 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
5585 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
5587 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
5588 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5590 params.p2p_ctwindow =
5591 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
5592 if (params.p2p_ctwindow < 0)
5594 if (params.p2p_ctwindow != 0 &&
5595 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
5599 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
5602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5604 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
5607 params.p2p_opp_ps = tmp;
5608 if (params.p2p_opp_ps &&
5609 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
5613 if (!rdev->ops->change_bss)
5616 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5617 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5621 err = rdev_change_bss(rdev, dev, ¶ms);
5627 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
5631 enum nl80211_user_reg_hint_type user_reg_hint_type;
5635 * You should only get this when cfg80211 hasn't yet initialized
5636 * completely when built-in to the kernel right between the time
5637 * window between nl80211_init() and regulatory_init(), if that is
5640 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
5641 return -EINPROGRESS;
5643 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
5644 user_reg_hint_type =
5645 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
5647 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
5649 switch (user_reg_hint_type) {
5650 case NL80211_USER_REG_HINT_USER:
5651 case NL80211_USER_REG_HINT_CELL_BASE:
5652 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5655 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5656 return regulatory_hint_user(data, user_reg_hint_type);
5657 case NL80211_USER_REG_HINT_INDOOR:
5658 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5659 owner_nlportid = info->snd_portid;
5660 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5666 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5672 static int nl80211_get_mesh_config(struct sk_buff *skb,
5673 struct genl_info *info)
5675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5676 struct net_device *dev = info->user_ptr[1];
5677 struct wireless_dev *wdev = dev->ieee80211_ptr;
5678 struct mesh_config cur_params;
5681 struct nlattr *pinfoattr;
5682 struct sk_buff *msg;
5684 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5687 if (!rdev->ops->get_mesh_config)
5691 /* If not connected, get default parameters */
5692 if (!wdev->mesh_id_len)
5693 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5695 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5701 /* Draw up a netlink message to send back */
5702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5705 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5706 NL80211_CMD_GET_MESH_CONFIG);
5709 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5711 goto nla_put_failure;
5712 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5713 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5714 cur_params.dot11MeshRetryTimeout) ||
5715 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5716 cur_params.dot11MeshConfirmTimeout) ||
5717 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5718 cur_params.dot11MeshHoldingTimeout) ||
5719 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5720 cur_params.dot11MeshMaxPeerLinks) ||
5721 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5722 cur_params.dot11MeshMaxRetries) ||
5723 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5724 cur_params.dot11MeshTTL) ||
5725 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5726 cur_params.element_ttl) ||
5727 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5728 cur_params.auto_open_plinks) ||
5729 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5730 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5731 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5732 cur_params.dot11MeshHWMPmaxPREQretries) ||
5733 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5734 cur_params.path_refresh_time) ||
5735 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5736 cur_params.min_discovery_timeout) ||
5737 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5738 cur_params.dot11MeshHWMPactivePathTimeout) ||
5739 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5740 cur_params.dot11MeshHWMPpreqMinInterval) ||
5741 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5742 cur_params.dot11MeshHWMPperrMinInterval) ||
5743 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5744 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5745 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5746 cur_params.dot11MeshHWMPRootMode) ||
5747 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5748 cur_params.dot11MeshHWMPRannInterval) ||
5749 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5750 cur_params.dot11MeshGateAnnouncementProtocol) ||
5751 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5752 cur_params.dot11MeshForwarding) ||
5753 nla_put_s32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5754 cur_params.rssi_threshold) ||
5755 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5756 cur_params.ht_opmode) ||
5757 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5758 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5759 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5760 cur_params.dot11MeshHWMProotInterval) ||
5761 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5762 cur_params.dot11MeshHWMPconfirmationInterval) ||
5763 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5764 cur_params.power_mode) ||
5765 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5766 cur_params.dot11MeshAwakeWindowDuration) ||
5767 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5768 cur_params.plink_timeout))
5769 goto nla_put_failure;
5770 nla_nest_end(msg, pinfoattr);
5771 genlmsg_end(msg, hdr);
5772 return genlmsg_reply(msg, info);
5775 genlmsg_cancel(msg, hdr);
5781 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5782 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5783 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5784 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5785 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5786 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5787 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5788 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5789 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5790 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5791 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5792 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5793 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5794 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5795 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5796 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5797 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5798 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5799 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5800 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5801 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5802 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5803 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5804 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5805 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5806 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5807 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5808 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5809 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5812 static const struct nla_policy
5813 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5814 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5815 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5816 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5817 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5818 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5819 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5820 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5821 .len = IEEE80211_MAX_DATA_LEN },
5822 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5825 static int nl80211_check_bool(const struct nlattr *nla, u8 min, u8 max, bool *out)
5827 u8 val = nla_get_u8(nla);
5828 if (val < min || val > max)
5834 static int nl80211_check_u8(const struct nlattr *nla, u8 min, u8 max, u8 *out)
5836 u8 val = nla_get_u8(nla);
5837 if (val < min || val > max)
5843 static int nl80211_check_u16(const struct nlattr *nla, u16 min, u16 max, u16 *out)
5845 u16 val = nla_get_u16(nla);
5846 if (val < min || val > max)
5852 static int nl80211_check_u32(const struct nlattr *nla, u32 min, u32 max, u32 *out)
5854 u32 val = nla_get_u32(nla);
5855 if (val < min || val > max)
5861 static int nl80211_check_s32(const struct nlattr *nla, s32 min, s32 max, s32 *out)
5863 s32 val = nla_get_s32(nla);
5864 if (val < min || val > max)
5870 static int nl80211_check_power_mode(const struct nlattr *nla,
5871 enum nl80211_mesh_power_mode min,
5872 enum nl80211_mesh_power_mode max,
5873 enum nl80211_mesh_power_mode *out)
5875 u32 val = nla_get_u32(nla);
5876 if (val < min || val > max)
5882 static int nl80211_parse_mesh_config(struct genl_info *info,
5883 struct mesh_config *cfg,
5886 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5890 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5893 if (fn(tb[attr], min, max, &cfg->param)) \
5895 mask |= (1 << (attr - 1)); \
5899 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5901 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5902 info->attrs[NL80211_ATTR_MESH_CONFIG],
5903 nl80211_meshconf_params_policy, info->extack))
5906 /* This makes sure that there aren't more than 32 mesh config
5907 * parameters (otherwise our bitfield scheme would not work.) */
5908 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5910 /* Fill in the params struct */
5911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5912 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5914 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5915 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5917 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5918 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5920 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5921 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5924 mask, NL80211_MESHCONF_MAX_RETRIES,
5926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5927 mask, NL80211_MESHCONF_TTL, nl80211_check_u8);
5928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5929 mask, NL80211_MESHCONF_ELEMENT_TTL,
5931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5932 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5933 nl80211_check_bool);
5934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5936 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5939 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5942 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5944 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5945 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5949 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5951 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5953 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5955 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5957 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5960 dot11MeshHWMPnetDiameterTraversalTime,
5962 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5965 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5968 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5970 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5971 dot11MeshGateAnnouncementProtocol, 0, 1,
5972 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5973 nl80211_check_bool);
5974 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5975 mask, NL80211_MESHCONF_FORWARDING,
5976 nl80211_check_bool);
5977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5978 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5981 * Check HT operation mode based on
5982 * IEEE 802.11 2012 8.4.2.59 HT Operation element.
5984 if (tb[NL80211_MESHCONF_HT_OPMODE]) {
5985 ht_opmode = nla_get_u16(tb[NL80211_MESHCONF_HT_OPMODE]);
5987 if (ht_opmode & ~(IEEE80211_HT_OP_MODE_PROTECTION |
5988 IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT |
5989 IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5992 if ((ht_opmode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT) &&
5993 (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
5996 switch (ht_opmode & IEEE80211_HT_OP_MODE_PROTECTION) {
5997 case IEEE80211_HT_OP_MODE_PROTECTION_NONE:
5998 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
5999 if (ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT)
6002 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER:
6003 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
6004 if (!(ht_opmode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT))
6008 cfg->ht_opmode = ht_opmode;
6009 mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
6011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
6013 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
6015 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
6016 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
6018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
6019 dot11MeshHWMPconfirmationInterval,
6021 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
6023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
6024 NL80211_MESH_POWER_ACTIVE,
6025 NL80211_MESH_POWER_MAX,
6026 mask, NL80211_MESHCONF_POWER_MODE,
6027 nl80211_check_power_mode);
6028 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
6030 NL80211_MESHCONF_AWAKE_WINDOW, nl80211_check_u16);
6031 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
6032 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
6039 #undef FILL_IN_MESH_PARAM_IF_SET
6042 static int nl80211_parse_mesh_setup(struct genl_info *info,
6043 struct mesh_setup *setup)
6045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6046 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
6048 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
6050 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
6051 info->attrs[NL80211_ATTR_MESH_SETUP],
6052 nl80211_mesh_setup_params_policy, info->extack))
6055 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
6056 setup->sync_method =
6057 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
6058 IEEE80211_SYNC_METHOD_VENDOR :
6059 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
6061 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
6062 setup->path_sel_proto =
6063 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
6064 IEEE80211_PATH_PROTOCOL_VENDOR :
6065 IEEE80211_PATH_PROTOCOL_HWMP;
6067 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
6068 setup->path_metric =
6069 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
6070 IEEE80211_PATH_METRIC_VENDOR :
6071 IEEE80211_PATH_METRIC_AIRTIME;
6073 if (tb[NL80211_MESH_SETUP_IE]) {
6074 struct nlattr *ieattr =
6075 tb[NL80211_MESH_SETUP_IE];
6076 if (!is_valid_ie_attr(ieattr))
6078 setup->ie = nla_data(ieattr);
6079 setup->ie_len = nla_len(ieattr);
6081 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
6082 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
6084 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
6085 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
6086 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
6087 if (setup->is_secure)
6088 setup->user_mpm = true;
6090 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
6091 if (!setup->user_mpm)
6094 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
6100 static int nl80211_update_mesh_config(struct sk_buff *skb,
6101 struct genl_info *info)
6103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6104 struct net_device *dev = info->user_ptr[1];
6105 struct wireless_dev *wdev = dev->ieee80211_ptr;
6106 struct mesh_config cfg;
6110 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
6113 if (!rdev->ops->update_mesh_config)
6116 err = nl80211_parse_mesh_config(info, &cfg, &mask);
6121 if (!wdev->mesh_id_len)
6125 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
6132 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
6133 struct sk_buff *msg)
6135 struct nlattr *nl_reg_rules;
6138 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
6139 (regdom->dfs_region &&
6140 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
6141 goto nla_put_failure;
6143 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
6145 goto nla_put_failure;
6147 for (i = 0; i < regdom->n_reg_rules; i++) {
6148 struct nlattr *nl_reg_rule;
6149 const struct ieee80211_reg_rule *reg_rule;
6150 const struct ieee80211_freq_range *freq_range;
6151 const struct ieee80211_power_rule *power_rule;
6152 unsigned int max_bandwidth_khz;
6154 reg_rule = ®dom->reg_rules[i];
6155 freq_range = ®_rule->freq_range;
6156 power_rule = ®_rule->power_rule;
6158 nl_reg_rule = nla_nest_start(msg, i);
6160 goto nla_put_failure;
6162 max_bandwidth_khz = freq_range->max_bandwidth_khz;
6163 if (!max_bandwidth_khz)
6164 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
6167 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
6169 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
6170 freq_range->start_freq_khz) ||
6171 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
6172 freq_range->end_freq_khz) ||
6173 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
6174 max_bandwidth_khz) ||
6175 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
6176 power_rule->max_antenna_gain) ||
6177 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
6178 power_rule->max_eirp) ||
6179 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
6180 reg_rule->dfs_cac_ms))
6181 goto nla_put_failure;
6183 nla_nest_end(msg, nl_reg_rule);
6186 nla_nest_end(msg, nl_reg_rules);
6193 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
6195 const struct ieee80211_regdomain *regdom = NULL;
6196 struct cfg80211_registered_device *rdev;
6197 struct wiphy *wiphy = NULL;
6198 struct sk_buff *msg;
6201 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6205 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6206 NL80211_CMD_GET_REG);
6210 if (info->attrs[NL80211_ATTR_WIPHY]) {
6213 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6216 return PTR_ERR(rdev);
6219 wiphy = &rdev->wiphy;
6220 self_managed = wiphy->regulatory_flags &
6221 REGULATORY_WIPHY_SELF_MANAGED;
6222 regdom = get_wiphy_regdom(wiphy);
6224 /* a self-managed-reg device must have a private regdom */
6225 if (WARN_ON(!regdom && self_managed)) {
6231 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6232 goto nla_put_failure;
6235 if (!wiphy && reg_last_request_cell_base() &&
6236 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6237 NL80211_USER_REG_HINT_CELL_BASE))
6238 goto nla_put_failure;
6243 regdom = rcu_dereference(cfg80211_regdomain);
6245 if (nl80211_put_regdom(regdom, msg))
6246 goto nla_put_failure_rcu;
6250 genlmsg_end(msg, hdr);
6251 return genlmsg_reply(msg, info);
6253 nla_put_failure_rcu:
6256 genlmsg_cancel(msg, hdr);
6262 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
6263 u32 seq, int flags, struct wiphy *wiphy,
6264 const struct ieee80211_regdomain *regdom)
6266 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6267 NL80211_CMD_GET_REG);
6272 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6274 if (nl80211_put_regdom(regdom, msg))
6275 goto nla_put_failure;
6277 if (!wiphy && reg_last_request_cell_base() &&
6278 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
6279 NL80211_USER_REG_HINT_CELL_BASE))
6280 goto nla_put_failure;
6283 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
6284 goto nla_put_failure;
6286 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
6287 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
6288 goto nla_put_failure;
6290 genlmsg_end(msg, hdr);
6294 genlmsg_cancel(msg, hdr);
6298 static int nl80211_get_reg_dump(struct sk_buff *skb,
6299 struct netlink_callback *cb)
6301 const struct ieee80211_regdomain *regdom = NULL;
6302 struct cfg80211_registered_device *rdev;
6303 int err, reg_idx, start = cb->args[2];
6307 if (cfg80211_regdomain && start == 0) {
6308 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6310 rtnl_dereference(cfg80211_regdomain));
6315 /* the global regdom is idx 0 */
6317 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
6318 regdom = get_wiphy_regdom(&rdev->wiphy);
6322 if (++reg_idx <= start)
6325 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
6326 NLM_F_MULTI, &rdev->wiphy, regdom);
6333 cb->args[2] = reg_idx;
6340 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
6341 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
6342 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6343 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6344 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6345 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6346 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6347 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6348 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
6351 static int parse_reg_rule(struct nlattr *tb[],
6352 struct ieee80211_reg_rule *reg_rule)
6354 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
6355 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
6357 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
6359 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
6361 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
6363 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6365 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6368 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
6370 freq_range->start_freq_khz =
6371 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
6372 freq_range->end_freq_khz =
6373 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
6374 freq_range->max_bandwidth_khz =
6375 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
6377 power_rule->max_eirp =
6378 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
6380 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
6381 power_rule->max_antenna_gain =
6382 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
6384 if (tb[NL80211_ATTR_DFS_CAC_TIME])
6385 reg_rule->dfs_cac_ms =
6386 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
6391 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
6393 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
6394 struct nlattr *nl_reg_rule;
6396 int rem_reg_rules, r;
6397 u32 num_rules = 0, rule_idx = 0, size_of_regd;
6398 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
6399 struct ieee80211_regdomain *rd;
6401 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
6404 if (!info->attrs[NL80211_ATTR_REG_RULES])
6407 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
6409 if (info->attrs[NL80211_ATTR_DFS_REGION])
6410 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
6412 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6415 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
6419 if (!reg_is_valid_request(alpha2))
6422 size_of_regd = sizeof(struct ieee80211_regdomain) +
6423 num_rules * sizeof(struct ieee80211_reg_rule);
6425 rd = kzalloc(size_of_regd, GFP_KERNEL);
6429 rd->n_reg_rules = num_rules;
6430 rd->alpha2[0] = alpha2[0];
6431 rd->alpha2[1] = alpha2[1];
6434 * Disable DFS master mode if the DFS region was
6435 * not supported or known on this kernel.
6437 if (reg_supported_dfs_region(dfs_region))
6438 rd->dfs_region = dfs_region;
6440 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
6442 r = nla_parse_nested(tb, NL80211_REG_RULE_ATTR_MAX,
6443 nl_reg_rule, reg_rule_policy,
6447 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
6453 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
6459 /* set_regdom takes ownership of rd */
6460 return set_regdom(rd, REGD_SOURCE_CRDA);
6465 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
6467 static int validate_scan_freqs(struct nlattr *freqs)
6469 struct nlattr *attr1, *attr2;
6470 int n_channels = 0, tmp1, tmp2;
6472 nla_for_each_nested(attr1, freqs, tmp1)
6473 if (nla_len(attr1) != sizeof(u32))
6476 nla_for_each_nested(attr1, freqs, tmp1) {
6479 * Some hardware has a limited channel list for
6480 * scanning, and it is pretty much nonsensical
6481 * to scan for a channel twice, so disallow that
6482 * and don't require drivers to check that the
6483 * channel list they get isn't longer than what
6484 * they can scan, as long as they can scan all
6485 * the channels they registered at once.
6487 nla_for_each_nested(attr2, freqs, tmp2)
6488 if (attr1 != attr2 &&
6489 nla_get_u32(attr1) == nla_get_u32(attr2))
6496 static bool is_band_valid(struct wiphy *wiphy, enum nl80211_band b)
6498 return b < NUM_NL80211_BANDS && wiphy->bands[b];
6501 static int parse_bss_select(struct nlattr *nla, struct wiphy *wiphy,
6502 struct cfg80211_bss_selection *bss_select)
6504 struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
6505 struct nlattr *nest;
6510 /* only process one nested attribute */
6511 nest = nla_data(nla);
6512 if (!nla_ok(nest, nla_len(nest)))
6515 err = nla_parse_nested(attr, NL80211_BSS_SELECT_ATTR_MAX, nest,
6516 nl80211_bss_select_policy, NULL);
6520 /* only one attribute may be given */
6521 for (i = 0; i <= NL80211_BSS_SELECT_ATTR_MAX; i++) {
6529 bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
6531 if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
6532 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
6534 if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
6535 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
6536 bss_select->param.band_pref =
6537 nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
6538 if (!is_band_valid(wiphy, bss_select->param.band_pref))
6542 if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
6543 struct nl80211_bss_select_rssi_adjust *adj_param;
6545 adj_param = nla_data(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
6546 bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
6547 bss_select->param.adjust.band = adj_param->band;
6548 bss_select->param.adjust.delta = adj_param->delta;
6549 if (!is_band_valid(wiphy, bss_select->param.adjust.band))
6553 /* user-space did not provide behaviour attribute */
6554 if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
6557 if (!(wiphy->bss_select_support & BIT(bss_select->behaviour)))
6563 static int nl80211_parse_random_mac(struct nlattr **attrs,
6564 u8 *mac_addr, u8 *mac_addr_mask)
6568 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
6569 eth_zero_addr(mac_addr);
6570 eth_zero_addr(mac_addr_mask);
6572 mac_addr_mask[0] = 0x3;
6577 /* need both or none */
6578 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
6581 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
6582 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
6584 /* don't allow or configure an mcast address */
6585 if (!is_multicast_ether_addr(mac_addr_mask) ||
6586 is_multicast_ether_addr(mac_addr))
6590 * allow users to pass a MAC address that has bits set outside
6591 * of the mask, but don't bother drivers with having to deal
6594 for (i = 0; i < ETH_ALEN; i++)
6595 mac_addr[i] &= mac_addr_mask[i];
6600 static bool cfg80211_off_channel_oper_allowed(struct wireless_dev *wdev)
6602 ASSERT_WDEV_LOCK(wdev);
6604 if (!cfg80211_beaconing_iface_active(wdev))
6607 if (!(wdev->chandef.chan->flags & IEEE80211_CHAN_RADAR))
6610 return regulatory_pre_cac_allowed(wdev->wiphy);
6613 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
6615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6616 struct wireless_dev *wdev = info->user_ptr[1];
6617 struct cfg80211_scan_request *request;
6618 struct nlattr *attr;
6619 struct wiphy *wiphy;
6620 int err, tmp, n_ssids = 0, n_channels, i;
6623 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6626 wiphy = &rdev->wiphy;
6628 if (wdev->iftype == NL80211_IFTYPE_NAN)
6631 if (!rdev->ops->scan)
6634 if (rdev->scan_req || rdev->scan_msg) {
6639 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6640 n_channels = validate_scan_freqs(
6641 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6647 n_channels = ieee80211_get_num_supported_channels(wiphy);
6650 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
6651 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
6654 if (n_ssids > wiphy->max_scan_ssids) {
6659 if (info->attrs[NL80211_ATTR_IE])
6660 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6664 if (ie_len > wiphy->max_scan_ie_len) {
6669 request = kzalloc(sizeof(*request)
6670 + sizeof(*request->ssids) * n_ssids
6671 + sizeof(*request->channels) * n_channels
6672 + ie_len, GFP_KERNEL);
6679 request->ssids = (void *)&request->channels[n_channels];
6680 request->n_ssids = n_ssids;
6683 request->ie = (void *)(request->ssids + n_ssids);
6685 request->ie = (void *)(request->channels + n_channels);
6689 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6690 /* user specified, bail out if channel not found */
6691 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
6692 struct ieee80211_channel *chan;
6694 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6701 /* ignore disabled channels */
6702 if (chan->flags & IEEE80211_CHAN_DISABLED)
6705 request->channels[i] = chan;
6709 enum nl80211_band band;
6712 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6715 if (!wiphy->bands[band])
6717 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6718 struct ieee80211_channel *chan;
6720 chan = &wiphy->bands[band]->channels[j];
6722 if (chan->flags & IEEE80211_CHAN_DISABLED)
6725 request->channels[i] = chan;
6736 request->n_channels = i;
6739 if (!cfg80211_off_channel_oper_allowed(wdev)) {
6740 struct ieee80211_channel *chan;
6742 if (request->n_channels != 1) {
6748 chan = request->channels[0];
6749 if (chan->center_freq != wdev->chandef.chan->center_freq) {
6759 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
6760 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6764 request->ssids[i].ssid_len = nla_len(attr);
6765 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
6770 if (info->attrs[NL80211_ATTR_IE]) {
6771 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6772 memcpy((void *)request->ie,
6773 nla_data(info->attrs[NL80211_ATTR_IE]),
6777 for (i = 0; i < NUM_NL80211_BANDS; i++)
6778 if (wiphy->bands[i])
6780 (1 << wiphy->bands[i]->n_bitrates) - 1;
6782 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
6783 nla_for_each_nested(attr,
6784 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
6786 enum nl80211_band band = nla_type(attr);
6788 if (band < 0 || band >= NUM_NL80211_BANDS) {
6793 if (!wiphy->bands[band])
6796 err = ieee80211_get_ratemask(wiphy->bands[band],
6799 &request->rates[band]);
6805 if (info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]) {
6806 if (!wiphy_ext_feature_isset(wiphy,
6807 NL80211_EXT_FEATURE_SET_SCAN_DWELL)) {
6813 nla_get_u16(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION]);
6814 request->duration_mandatory =
6815 nla_get_flag(info->attrs[NL80211_ATTR_MEASUREMENT_DURATION_MANDATORY]);
6818 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
6819 request->flags = nla_get_u32(
6820 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
6821 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6822 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6827 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6828 if (!(wiphy->features &
6829 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
6834 if (wdev->current_bss) {
6839 err = nl80211_parse_random_mac(info->attrs,
6841 request->mac_addr_mask);
6848 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6850 /* Initial implementation used NL80211_ATTR_MAC to set the specific
6851 * BSSID to scan for. This was problematic because that same attribute
6852 * was already used for another purpose (local random MAC address). The
6853 * NL80211_ATTR_BSSID attribute was added to fix this. For backwards
6854 * compatibility with older userspace components, also use the
6855 * NL80211_ATTR_MAC value here if it can be determined to be used for
6856 * the specific BSSID use case instead of the random MAC address
6857 * (NL80211_ATTR_SCAN_FLAGS is used to enable random MAC address use).
6859 if (info->attrs[NL80211_ATTR_BSSID])
6860 memcpy(request->bssid,
6861 nla_data(info->attrs[NL80211_ATTR_BSSID]), ETH_ALEN);
6862 else if (!(request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) &&
6863 info->attrs[NL80211_ATTR_MAC])
6864 memcpy(request->bssid, nla_data(info->attrs[NL80211_ATTR_MAC]),
6867 eth_broadcast_addr(request->bssid);
6869 request->wdev = wdev;
6870 request->wiphy = &rdev->wiphy;
6871 request->scan_start = jiffies;
6873 rdev->scan_req = request;
6874 err = rdev_scan(rdev, request);
6877 nl80211_send_scan_start(rdev, wdev);
6879 dev_hold(wdev->netdev);
6882 rdev->scan_req = NULL;
6890 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6893 struct wireless_dev *wdev = info->user_ptr[1];
6895 if (!rdev->ops->abort_scan)
6901 if (!rdev->scan_req)
6904 rdev_abort_scan(rdev, wdev);
6909 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6910 struct cfg80211_sched_scan_request *request,
6911 struct nlattr **attrs)
6913 int tmp, err, i = 0;
6914 struct nlattr *attr;
6916 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6920 * If scan plans are not specified,
6921 * %NL80211_ATTR_SCHED_SCAN_INTERVAL will be specified. In this
6922 * case one scan plan will be set with the specified scan
6923 * interval and infinite number of iterations.
6925 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6929 request->scan_plans[0].interval =
6930 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6931 if (!request->scan_plans[0].interval)
6934 if (request->scan_plans[0].interval >
6935 wiphy->max_sched_scan_plan_interval)
6936 request->scan_plans[0].interval =
6937 wiphy->max_sched_scan_plan_interval;
6942 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6943 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6945 if (WARN_ON(i >= n_plans))
6948 err = nla_parse_nested(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6949 attr, nl80211_plan_policy, NULL);
6953 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6956 request->scan_plans[i].interval =
6957 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6958 if (!request->scan_plans[i].interval ||
6959 request->scan_plans[i].interval >
6960 wiphy->max_sched_scan_plan_interval)
6963 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6964 request->scan_plans[i].iterations =
6965 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6966 if (!request->scan_plans[i].iterations ||
6967 (request->scan_plans[i].iterations >
6968 wiphy->max_sched_scan_plan_iterations))
6970 } else if (i < n_plans - 1) {
6972 * All scan plans but the last one must specify
6973 * a finite number of iterations
6982 * The last scan plan must not specify the number of
6983 * iterations, it is supposed to run infinitely
6985 if (request->scan_plans[n_plans - 1].iterations)
6991 static struct cfg80211_sched_scan_request *
6992 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6993 struct nlattr **attrs, int max_match_sets)
6995 struct cfg80211_sched_scan_request *request;
6996 struct nlattr *attr;
6997 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6998 enum nl80211_band band;
7000 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
7001 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
7003 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
7004 return ERR_PTR(-EINVAL);
7006 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7007 n_channels = validate_scan_freqs(
7008 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
7010 return ERR_PTR(-EINVAL);
7012 n_channels = ieee80211_get_num_supported_channels(wiphy);
7015 if (attrs[NL80211_ATTR_SCAN_SSIDS])
7016 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7020 if (n_ssids > wiphy->max_sched_scan_ssids)
7021 return ERR_PTR(-EINVAL);
7024 * First, count the number of 'real' matchsets. Due to an issue with
7025 * the old implementation, matchsets containing only the RSSI attribute
7026 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
7027 * RSSI for all matchsets, rather than their own matchset for reporting
7028 * all APs with a strong RSSI. This is needed to be compatible with
7029 * older userspace that treated a matchset with only the RSSI as the
7030 * global RSSI for all other matchsets - if there are other matchsets.
7032 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7033 nla_for_each_nested(attr,
7034 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7036 struct nlattr *rssi;
7038 err = nla_parse_nested(tb,
7039 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7040 attr, nl80211_match_policy,
7043 return ERR_PTR(err);
7045 /* SSID and BSSID are mutually exclusive */
7046 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] &&
7047 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID])
7048 return ERR_PTR(-EINVAL);
7050 /* add other standalone attributes here */
7051 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID] ||
7052 tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID]) {
7056 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7058 default_match_rssi = nla_get_s32(rssi);
7062 /* However, if there's no other matchset, add the RSSI one */
7063 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
7066 if (n_match_sets > max_match_sets)
7067 return ERR_PTR(-EINVAL);
7069 if (attrs[NL80211_ATTR_IE])
7070 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
7074 if (ie_len > wiphy->max_sched_scan_ie_len)
7075 return ERR_PTR(-EINVAL);
7077 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
7079 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
7080 * each scan plan already specifies its own interval
7082 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7083 return ERR_PTR(-EINVAL);
7085 nla_for_each_nested(attr,
7086 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
7090 * The scan interval attribute is kept for backward
7091 * compatibility. If no scan plans are specified and sched scan
7092 * interval is specified, one scan plan will be set with this
7093 * scan interval and infinite number of iterations.
7095 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
7096 return ERR_PTR(-EINVAL);
7101 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
7102 return ERR_PTR(-EINVAL);
7104 if (!wiphy_ext_feature_isset(
7105 wiphy, NL80211_EXT_FEATURE_SCHED_SCAN_RELATIVE_RSSI) &&
7106 (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI] ||
7107 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]))
7108 return ERR_PTR(-EINVAL);
7110 request = kzalloc(sizeof(*request)
7111 + sizeof(*request->ssids) * n_ssids
7112 + sizeof(*request->match_sets) * n_match_sets
7113 + sizeof(*request->scan_plans) * n_plans
7114 + sizeof(*request->channels) * n_channels
7115 + ie_len, GFP_KERNEL);
7117 return ERR_PTR(-ENOMEM);
7120 request->ssids = (void *)&request->channels[n_channels];
7121 request->n_ssids = n_ssids;
7124 request->ie = (void *)(request->ssids + n_ssids);
7126 request->ie = (void *)(request->channels + n_channels);
7131 request->match_sets = (void *)(request->ie + ie_len);
7133 request->match_sets =
7134 (void *)(request->ssids + n_ssids);
7136 request->match_sets =
7137 (void *)(request->channels + n_channels);
7139 request->n_match_sets = n_match_sets;
7142 request->scan_plans = (void *)(request->match_sets +
7144 else if (request->ie)
7145 request->scan_plans = (void *)(request->ie + ie_len);
7147 request->scan_plans = (void *)(request->ssids + n_ssids);
7149 request->scan_plans = (void *)(request->channels + n_channels);
7151 request->n_scan_plans = n_plans;
7154 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
7155 /* user specified, bail out if channel not found */
7156 nla_for_each_nested(attr,
7157 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
7159 struct ieee80211_channel *chan;
7161 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
7168 /* ignore disabled channels */
7169 if (chan->flags & IEEE80211_CHAN_DISABLED)
7172 request->channels[i] = chan;
7177 for (band = 0; band < NUM_NL80211_BANDS; band++) {
7180 if (!wiphy->bands[band])
7182 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
7183 struct ieee80211_channel *chan;
7185 chan = &wiphy->bands[band]->channels[j];
7187 if (chan->flags & IEEE80211_CHAN_DISABLED)
7190 request->channels[i] = chan;
7201 request->n_channels = i;
7205 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
7207 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
7211 request->ssids[i].ssid_len = nla_len(attr);
7212 memcpy(request->ssids[i].ssid, nla_data(attr),
7219 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
7220 nla_for_each_nested(attr,
7221 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
7223 struct nlattr *ssid, *bssid, *rssi;
7225 err = nla_parse_nested(tb,
7226 NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
7227 attr, nl80211_match_policy,
7231 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
7232 bssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_BSSID];
7233 if (ssid || bssid) {
7234 if (WARN_ON(i >= n_match_sets)) {
7235 /* this indicates a programming error,
7236 * the loop above should have verified
7244 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
7248 memcpy(request->match_sets[i].ssid.ssid,
7249 nla_data(ssid), nla_len(ssid));
7250 request->match_sets[i].ssid.ssid_len =
7254 if (nla_len(bssid) != ETH_ALEN) {
7258 memcpy(request->match_sets[i].bssid,
7259 nla_data(bssid), ETH_ALEN);
7262 /* special attribute - old implementation w/a */
7263 request->match_sets[i].rssi_thold =
7265 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
7267 request->match_sets[i].rssi_thold =
7273 /* there was no other matchset, so the RSSI one is alone */
7274 if (i == 0 && n_match_sets)
7275 request->match_sets[0].rssi_thold = default_match_rssi;
7277 request->min_rssi_thold = INT_MAX;
7278 for (i = 0; i < n_match_sets; i++)
7279 request->min_rssi_thold =
7280 min(request->match_sets[i].rssi_thold,
7281 request->min_rssi_thold);
7283 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
7287 request->ie_len = ie_len;
7288 memcpy((void *)request->ie,
7289 nla_data(attrs[NL80211_ATTR_IE]),
7293 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
7294 request->flags = nla_get_u32(
7295 attrs[NL80211_ATTR_SCAN_FLAGS]);
7296 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
7297 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
7302 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
7303 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
7305 if (!wdev) /* must be net-detect */
7306 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
7308 if (!(wiphy->features & flg)) {
7313 if (wdev && wdev->current_bss) {
7318 err = nl80211_parse_random_mac(attrs, request->mac_addr,
7319 request->mac_addr_mask);
7325 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
7327 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
7329 if (attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]) {
7330 request->relative_rssi = nla_get_s8(
7331 attrs[NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI]);
7332 request->relative_rssi_set = true;
7335 if (request->relative_rssi_set &&
7336 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]) {
7337 struct nl80211_bss_select_rssi_adjust *rssi_adjust;
7339 rssi_adjust = nla_data(
7340 attrs[NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST]);
7341 request->rssi_adjust.band = rssi_adjust->band;
7342 request->rssi_adjust.delta = rssi_adjust->delta;
7343 if (!is_band_valid(wiphy, request->rssi_adjust.band)) {
7349 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
7353 request->scan_start = jiffies;
7359 return ERR_PTR(err);
7362 static int nl80211_start_sched_scan(struct sk_buff *skb,
7363 struct genl_info *info)
7365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7366 struct net_device *dev = info->user_ptr[1];
7367 struct wireless_dev *wdev = dev->ieee80211_ptr;
7368 struct cfg80211_sched_scan_request *sched_scan_req;
7372 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_start)
7375 want_multi = info->attrs[NL80211_ATTR_SCHED_SCAN_MULTI];
7376 err = cfg80211_sched_scan_req_possible(rdev, want_multi);
7380 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
7382 rdev->wiphy.max_match_sets);
7384 err = PTR_ERR_OR_ZERO(sched_scan_req);
7388 /* leave request id zero for legacy request
7389 * or if driver does not support multi-scheduled scan
7391 if (want_multi && rdev->wiphy.max_sched_scan_reqs > 1) {
7392 while (!sched_scan_req->reqid)
7393 sched_scan_req->reqid = rdev->wiphy.cookie_counter++;
7396 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
7400 sched_scan_req->dev = dev;
7401 sched_scan_req->wiphy = &rdev->wiphy;
7403 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
7404 sched_scan_req->owner_nlportid = info->snd_portid;
7406 cfg80211_add_sched_scan_req(rdev, sched_scan_req);
7408 nl80211_send_sched_scan(sched_scan_req, NL80211_CMD_START_SCHED_SCAN);
7412 kfree(sched_scan_req);
7417 static int nl80211_stop_sched_scan(struct sk_buff *skb,
7418 struct genl_info *info)
7420 struct cfg80211_sched_scan_request *req;
7421 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7424 if (!rdev->wiphy.max_sched_scan_reqs || !rdev->ops->sched_scan_stop)
7427 if (info->attrs[NL80211_ATTR_COOKIE]) {
7428 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7429 return __cfg80211_stop_sched_scan(rdev, cookie, false);
7432 req = list_first_or_null_rcu(&rdev->sched_scan_req_list,
7433 struct cfg80211_sched_scan_request,
7435 if (!req || req->reqid ||
7436 (req->owner_nlportid &&
7437 req->owner_nlportid != info->snd_portid))
7440 return cfg80211_stop_sched_scan_req(rdev, req, false);
7443 static int nl80211_start_radar_detection(struct sk_buff *skb,
7444 struct genl_info *info)
7446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7447 struct net_device *dev = info->user_ptr[1];
7448 struct wireless_dev *wdev = dev->ieee80211_ptr;
7449 struct cfg80211_chan_def chandef;
7450 enum nl80211_dfs_regions dfs_region;
7451 unsigned int cac_time_ms;
7454 dfs_region = reg_get_dfs_region(wdev->wiphy);
7455 if (dfs_region == NL80211_DFS_UNSET)
7458 err = nl80211_parse_chandef(rdev, info, &chandef);
7462 if (netif_carrier_ok(dev))
7465 if (wdev->cac_started)
7468 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
7476 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
7479 if (!rdev->ops->start_radar_detection)
7482 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
7483 if (WARN_ON(!cac_time_ms))
7484 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
7486 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
7488 wdev->chandef = chandef;
7489 wdev->cac_started = true;
7490 wdev->cac_start_time = jiffies;
7491 wdev->cac_time_ms = cac_time_ms;
7496 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
7498 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7499 struct net_device *dev = info->user_ptr[1];
7500 struct wireless_dev *wdev = dev->ieee80211_ptr;
7501 struct cfg80211_csa_settings params;
7502 /* csa_attrs is defined static to avoid waste of stack size - this
7503 * function is called under RTNL lock, so this should not be a problem.
7505 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
7507 bool need_new_beacon = false;
7508 bool need_handle_dfs_flag = true;
7512 if (!rdev->ops->channel_switch ||
7513 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
7516 switch (dev->ieee80211_ptr->iftype) {
7517 case NL80211_IFTYPE_AP:
7518 case NL80211_IFTYPE_P2P_GO:
7519 need_new_beacon = true;
7520 /* For all modes except AP the handle_dfs flag needs to be
7521 * supplied to tell the kernel that userspace will handle radar
7522 * events when they happen. Otherwise a switch to a channel
7523 * requiring DFS will be rejected.
7525 need_handle_dfs_flag = false;
7527 /* useless if AP is not running */
7528 if (!wdev->beacon_interval)
7531 case NL80211_IFTYPE_ADHOC:
7532 if (!wdev->ssid_len)
7535 case NL80211_IFTYPE_MESH_POINT:
7536 if (!wdev->mesh_id_len)
7543 memset(¶ms, 0, sizeof(params));
7545 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7546 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
7549 /* only important for AP, IBSS and mesh create IEs internally */
7550 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
7553 /* Even though the attribute is u32, the specification says
7554 * u8, so let's make sure we don't overflow.
7556 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
7560 params.count = cs_count;
7562 if (!need_new_beacon)
7565 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
7569 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
7570 info->attrs[NL80211_ATTR_CSA_IES],
7571 nl80211_policy, info->extack);
7575 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
7579 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
7582 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7583 if (!len || (len % sizeof(u16)))
7586 params.n_counter_offsets_beacon = len / sizeof(u16);
7587 if (rdev->wiphy.max_num_csa_counters &&
7588 (params.n_counter_offsets_beacon >
7589 rdev->wiphy.max_num_csa_counters))
7592 params.counter_offsets_beacon =
7593 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
7595 /* sanity checks - counters should fit and be the same */
7596 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
7597 u16 offset = params.counter_offsets_beacon[i];
7599 if (offset >= params.beacon_csa.tail_len)
7602 if (params.beacon_csa.tail[offset] != params.count)
7606 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
7607 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7608 if (!len || (len % sizeof(u16)))
7611 params.n_counter_offsets_presp = len / sizeof(u16);
7612 if (rdev->wiphy.max_num_csa_counters &&
7613 (params.n_counter_offsets_presp >
7614 rdev->wiphy.max_num_csa_counters))
7617 params.counter_offsets_presp =
7618 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
7620 /* sanity checks - counters should fit and be the same */
7621 for (i = 0; i < params.n_counter_offsets_presp; i++) {
7622 u16 offset = params.counter_offsets_presp[i];
7624 if (offset >= params.beacon_csa.probe_resp_len)
7627 if (params.beacon_csa.probe_resp[offset] !=
7634 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
7638 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
7642 err = cfg80211_chandef_dfs_required(wdev->wiphy,
7649 params.radar_required = true;
7650 if (need_handle_dfs_flag &&
7651 !nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS])) {
7656 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
7657 params.block_tx = true;
7660 err = rdev_channel_switch(rdev, dev, ¶ms);
7666 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
7668 struct cfg80211_registered_device *rdev,
7669 struct wireless_dev *wdev,
7670 struct cfg80211_internal_bss *intbss)
7672 struct cfg80211_bss *res = &intbss->pub;
7673 const struct cfg80211_bss_ies *ies;
7677 ASSERT_WDEV_LOCK(wdev);
7679 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
7680 NL80211_CMD_NEW_SCAN_RESULTS);
7684 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
7686 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
7687 goto nla_put_failure;
7689 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
7690 goto nla_put_failure;
7691 if (nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
7693 goto nla_put_failure;
7695 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
7697 goto nla_put_failure;
7698 if ((!is_zero_ether_addr(res->bssid) &&
7699 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
7700 goto nla_put_failure;
7703 /* indicate whether we have probe response data or not */
7704 if (rcu_access_pointer(res->proberesp_ies) &&
7705 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
7706 goto fail_unlock_rcu;
7708 /* this pointer prefers to be pointed to probe response data
7709 * but is always valid
7711 ies = rcu_dereference(res->ies);
7713 if (nla_put_u64_64bit(msg, NL80211_BSS_TSF, ies->tsf,
7715 goto fail_unlock_rcu;
7716 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
7717 ies->len, ies->data))
7718 goto fail_unlock_rcu;
7721 /* and this pointer is always (unless driver didn't know) beacon data */
7722 ies = rcu_dereference(res->beacon_ies);
7723 if (ies && ies->from_beacon) {
7724 if (nla_put_u64_64bit(msg, NL80211_BSS_BEACON_TSF, ies->tsf,
7726 goto fail_unlock_rcu;
7727 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
7728 ies->len, ies->data))
7729 goto fail_unlock_rcu;
7733 if (res->beacon_interval &&
7734 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
7735 goto nla_put_failure;
7736 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
7737 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
7738 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
7739 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
7740 jiffies_to_msecs(jiffies - intbss->ts)))
7741 goto nla_put_failure;
7743 if (intbss->parent_tsf &&
7744 (nla_put_u64_64bit(msg, NL80211_BSS_PARENT_TSF,
7745 intbss->parent_tsf, NL80211_BSS_PAD) ||
7746 nla_put(msg, NL80211_BSS_PARENT_BSSID, ETH_ALEN,
7747 intbss->parent_bssid)))
7748 goto nla_put_failure;
7750 if (intbss->ts_boottime &&
7751 nla_put_u64_64bit(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
7752 intbss->ts_boottime, NL80211_BSS_PAD))
7753 goto nla_put_failure;
7755 switch (rdev->wiphy.signal_type) {
7756 case CFG80211_SIGNAL_TYPE_MBM:
7757 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
7758 goto nla_put_failure;
7760 case CFG80211_SIGNAL_TYPE_UNSPEC:
7761 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
7762 goto nla_put_failure;
7768 switch (wdev->iftype) {
7769 case NL80211_IFTYPE_P2P_CLIENT:
7770 case NL80211_IFTYPE_STATION:
7771 if (intbss == wdev->current_bss &&
7772 nla_put_u32(msg, NL80211_BSS_STATUS,
7773 NL80211_BSS_STATUS_ASSOCIATED))
7774 goto nla_put_failure;
7776 case NL80211_IFTYPE_ADHOC:
7777 if (intbss == wdev->current_bss &&
7778 nla_put_u32(msg, NL80211_BSS_STATUS,
7779 NL80211_BSS_STATUS_IBSS_JOINED))
7780 goto nla_put_failure;
7786 nla_nest_end(msg, bss);
7788 genlmsg_end(msg, hdr);
7794 genlmsg_cancel(msg, hdr);
7798 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
7800 struct cfg80211_registered_device *rdev;
7801 struct cfg80211_internal_bss *scan;
7802 struct wireless_dev *wdev;
7803 int start = cb->args[2], idx = 0;
7807 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7814 spin_lock_bh(&rdev->bss_lock);
7815 cfg80211_bss_expire(rdev);
7817 cb->seq = rdev->bss_generation;
7819 list_for_each_entry(scan, &rdev->bss_list, list) {
7822 if (nl80211_send_bss(skb, cb,
7823 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7824 rdev, wdev, scan) < 0) {
7830 spin_unlock_bh(&rdev->bss_lock);
7839 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
7840 int flags, struct net_device *dev,
7841 bool allow_radio_stats,
7842 struct survey_info *survey)
7845 struct nlattr *infoattr;
7847 /* skip radio stats if userspace didn't request them */
7848 if (!survey->channel && !allow_radio_stats)
7851 hdr = nl80211hdr_put(msg, portid, seq, flags,
7852 NL80211_CMD_NEW_SURVEY_RESULTS);
7856 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
7857 goto nla_put_failure;
7859 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
7861 goto nla_put_failure;
7863 if (survey->channel &&
7864 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
7865 survey->channel->center_freq))
7866 goto nla_put_failure;
7868 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
7869 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
7870 goto nla_put_failure;
7871 if ((survey->filled & SURVEY_INFO_IN_USE) &&
7872 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
7873 goto nla_put_failure;
7874 if ((survey->filled & SURVEY_INFO_TIME) &&
7875 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME,
7876 survey->time, NL80211_SURVEY_INFO_PAD))
7877 goto nla_put_failure;
7878 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
7879 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_BUSY,
7880 survey->time_busy, NL80211_SURVEY_INFO_PAD))
7881 goto nla_put_failure;
7882 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
7883 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
7884 survey->time_ext_busy, NL80211_SURVEY_INFO_PAD))
7885 goto nla_put_failure;
7886 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
7887 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_RX,
7888 survey->time_rx, NL80211_SURVEY_INFO_PAD))
7889 goto nla_put_failure;
7890 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
7891 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_TX,
7892 survey->time_tx, NL80211_SURVEY_INFO_PAD))
7893 goto nla_put_failure;
7894 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
7895 nla_put_u64_64bit(msg, NL80211_SURVEY_INFO_TIME_SCAN,
7896 survey->time_scan, NL80211_SURVEY_INFO_PAD))
7897 goto nla_put_failure;
7899 nla_nest_end(msg, infoattr);
7901 genlmsg_end(msg, hdr);
7905 genlmsg_cancel(msg, hdr);
7909 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
7911 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
7912 struct survey_info survey;
7913 struct cfg80211_registered_device *rdev;
7914 struct wireless_dev *wdev;
7915 int survey_idx = cb->args[2];
7920 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
7924 /* prepare_wdev_dump parsed the attributes */
7925 radio_stats = attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
7927 if (!wdev->netdev) {
7932 if (!rdev->ops->dump_survey) {
7938 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
7944 /* don't send disabled channels, but do send non-channel data */
7945 if (survey.channel &&
7946 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
7951 if (nl80211_send_survey(skb,
7952 NETLINK_CB(cb->skb).portid,
7953 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7954 wdev->netdev, radio_stats, &survey) < 0)
7960 cb->args[2] = survey_idx;
7967 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7969 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7970 NL80211_WPA_VERSION_2));
7973 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7976 struct net_device *dev = info->user_ptr[1];
7977 struct ieee80211_channel *chan;
7978 const u8 *bssid, *ssid, *ie = NULL, *auth_data = NULL;
7979 int err, ssid_len, ie_len = 0, auth_data_len = 0;
7980 enum nl80211_auth_type auth_type;
7981 struct key_parse key;
7982 bool local_state_change;
7984 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7987 if (!info->attrs[NL80211_ATTR_MAC])
7990 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7993 if (!info->attrs[NL80211_ATTR_SSID])
7996 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7999 err = nl80211_parse_key(info, &key);
8004 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
8006 if (!key.p.key || !key.p.key_len)
8008 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
8009 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
8010 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
8011 key.p.key_len != WLAN_KEY_LEN_WEP104))
8024 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
8025 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
8034 if (!rdev->ops->auth)
8037 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8038 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8041 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8042 chan = nl80211_get_valid_chan(&rdev->wiphy,
8043 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8047 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8048 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8050 if (info->attrs[NL80211_ATTR_IE]) {
8051 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8052 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8055 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8056 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
8059 if ((auth_type == NL80211_AUTHTYPE_SAE ||
8060 auth_type == NL80211_AUTHTYPE_FILS_SK ||
8061 auth_type == NL80211_AUTHTYPE_FILS_SK_PFS ||
8062 auth_type == NL80211_AUTHTYPE_FILS_PK) &&
8063 !info->attrs[NL80211_ATTR_AUTH_DATA])
8066 if (info->attrs[NL80211_ATTR_AUTH_DATA]) {
8067 if (auth_type != NL80211_AUTHTYPE_SAE &&
8068 auth_type != NL80211_AUTHTYPE_FILS_SK &&
8069 auth_type != NL80211_AUTHTYPE_FILS_SK_PFS &&
8070 auth_type != NL80211_AUTHTYPE_FILS_PK)
8072 auth_data = nla_data(info->attrs[NL80211_ATTR_AUTH_DATA]);
8073 auth_data_len = nla_len(info->attrs[NL80211_ATTR_AUTH_DATA]);
8074 /* need to include at least Auth Transaction and Status Code */
8075 if (auth_data_len < 4)
8079 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8082 * Since we no longer track auth state, ignore
8083 * requests to only change local state.
8085 if (local_state_change)
8088 wdev_lock(dev->ieee80211_ptr);
8089 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
8090 ssid, ssid_len, ie, ie_len,
8091 key.p.key, key.p.key_len, key.idx,
8092 auth_data, auth_data_len);
8093 wdev_unlock(dev->ieee80211_ptr);
8097 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
8098 struct genl_info *info,
8099 struct cfg80211_crypto_settings *settings,
8102 memset(settings, 0, sizeof(*settings));
8104 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
8106 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
8109 proto = nla_get_u16(
8110 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
8111 settings->control_port_ethertype = cpu_to_be16(proto);
8112 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
8115 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
8116 settings->control_port_no_encrypt = true;
8118 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
8120 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
8124 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8125 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
8126 settings->n_ciphers_pairwise = len / sizeof(u32);
8128 if (len % sizeof(u32))
8131 if (settings->n_ciphers_pairwise > cipher_limit)
8134 memcpy(settings->ciphers_pairwise, data, len);
8136 for (i = 0; i < settings->n_ciphers_pairwise; i++)
8137 if (!cfg80211_supported_cipher_suite(
8139 settings->ciphers_pairwise[i]))
8143 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
8144 settings->cipher_group =
8145 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
8146 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
8147 settings->cipher_group))
8151 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
8152 settings->wpa_versions =
8153 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
8154 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
8158 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
8162 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
8163 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
8164 settings->n_akm_suites = len / sizeof(u32);
8166 if (len % sizeof(u32))
8169 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
8172 memcpy(settings->akm_suites, data, len);
8175 if (info->attrs[NL80211_ATTR_PMK]) {
8176 if (nla_len(info->attrs[NL80211_ATTR_PMK]) != WLAN_PMK_LEN)
8178 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8179 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_PSK))
8181 settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
8187 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
8189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8190 struct net_device *dev = info->user_ptr[1];
8191 struct ieee80211_channel *chan;
8192 struct cfg80211_assoc_request req = {};
8193 const u8 *bssid, *ssid;
8194 int err, ssid_len = 0;
8196 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8199 if (!info->attrs[NL80211_ATTR_MAC] ||
8200 !info->attrs[NL80211_ATTR_SSID] ||
8201 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
8204 if (!rdev->ops->assoc)
8207 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8208 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8211 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8213 chan = nl80211_get_valid_chan(&rdev->wiphy,
8214 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8218 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8219 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8221 if (info->attrs[NL80211_ATTR_IE]) {
8222 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8223 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8226 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8227 enum nl80211_mfp mfp =
8228 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8229 if (mfp == NL80211_MFP_REQUIRED)
8231 else if (mfp != NL80211_MFP_NO)
8235 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8236 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8238 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8239 req.flags |= ASSOC_REQ_DISABLE_HT;
8241 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8242 memcpy(&req.ht_capa_mask,
8243 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8244 sizeof(req.ht_capa_mask));
8246 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8247 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8249 memcpy(&req.ht_capa,
8250 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8251 sizeof(req.ht_capa));
8254 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8255 req.flags |= ASSOC_REQ_DISABLE_VHT;
8257 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8258 memcpy(&req.vht_capa_mask,
8259 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8260 sizeof(req.vht_capa_mask));
8262 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8263 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8265 memcpy(&req.vht_capa,
8266 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8267 sizeof(req.vht_capa));
8270 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8271 if (!((rdev->wiphy.features &
8272 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8273 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8274 !wiphy_ext_feature_isset(&rdev->wiphy,
8275 NL80211_EXT_FEATURE_RRM))
8277 req.flags |= ASSOC_REQ_USE_RRM;
8280 if (info->attrs[NL80211_ATTR_FILS_KEK]) {
8281 req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
8282 req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
8283 if (!info->attrs[NL80211_ATTR_FILS_NONCES])
8286 nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
8289 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
8291 wdev_lock(dev->ieee80211_ptr);
8293 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
8294 ssid, ssid_len, &req);
8296 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
8297 dev->ieee80211_ptr->conn_owner_nlportid =
8299 memcpy(dev->ieee80211_ptr->disconnect_bssid,
8303 wdev_unlock(dev->ieee80211_ptr);
8309 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
8311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8312 struct net_device *dev = info->user_ptr[1];
8313 const u8 *ie = NULL, *bssid;
8314 int ie_len = 0, err;
8316 bool local_state_change;
8318 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8321 if (!info->attrs[NL80211_ATTR_MAC])
8324 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8327 if (!rdev->ops->deauth)
8330 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8331 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8334 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8336 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8337 if (reason_code == 0) {
8338 /* Reason Code 0 is reserved */
8342 if (info->attrs[NL80211_ATTR_IE]) {
8343 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8344 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8347 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8349 wdev_lock(dev->ieee80211_ptr);
8350 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
8351 local_state_change);
8352 wdev_unlock(dev->ieee80211_ptr);
8356 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
8358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8359 struct net_device *dev = info->user_ptr[1];
8360 const u8 *ie = NULL, *bssid;
8361 int ie_len = 0, err;
8363 bool local_state_change;
8365 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8368 if (!info->attrs[NL80211_ATTR_MAC])
8371 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8374 if (!rdev->ops->disassoc)
8377 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8378 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8381 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8383 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8384 if (reason_code == 0) {
8385 /* Reason Code 0 is reserved */
8389 if (info->attrs[NL80211_ATTR_IE]) {
8390 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8391 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8394 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
8396 wdev_lock(dev->ieee80211_ptr);
8397 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
8398 local_state_change);
8399 wdev_unlock(dev->ieee80211_ptr);
8404 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
8405 int mcast_rate[NUM_NL80211_BANDS],
8408 struct wiphy *wiphy = &rdev->wiphy;
8412 for (band = 0; band < NUM_NL80211_BANDS; band++) {
8413 struct ieee80211_supported_band *sband;
8415 sband = wiphy->bands[band];
8419 for (i = 0; i < sband->n_bitrates; i++) {
8420 if (sband->bitrates[i].bitrate == rateval) {
8421 mcast_rate[band] = i + 1;
8431 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
8433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8434 struct net_device *dev = info->user_ptr[1];
8435 struct cfg80211_ibss_params ibss;
8436 struct wiphy *wiphy;
8437 struct cfg80211_cached_keys *connkeys = NULL;
8440 memset(&ibss, 0, sizeof(ibss));
8442 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8445 if (!info->attrs[NL80211_ATTR_SSID] ||
8446 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8449 ibss.beacon_interval = 100;
8451 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL])
8452 ibss.beacon_interval =
8453 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8455 err = cfg80211_validate_beacon_int(rdev, NL80211_IFTYPE_ADHOC,
8456 ibss.beacon_interval);
8460 if (!rdev->ops->join_ibss)
8463 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8466 wiphy = &rdev->wiphy;
8468 if (info->attrs[NL80211_ATTR_MAC]) {
8469 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8471 if (!is_valid_ether_addr(ibss.bssid))
8474 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8475 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8477 if (info->attrs[NL80211_ATTR_IE]) {
8478 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8479 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8482 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
8486 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
8487 NL80211_IFTYPE_ADHOC))
8490 switch (ibss.chandef.width) {
8491 case NL80211_CHAN_WIDTH_5:
8492 case NL80211_CHAN_WIDTH_10:
8493 case NL80211_CHAN_WIDTH_20_NOHT:
8495 case NL80211_CHAN_WIDTH_20:
8496 case NL80211_CHAN_WIDTH_40:
8497 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8500 case NL80211_CHAN_WIDTH_80:
8501 case NL80211_CHAN_WIDTH_80P80:
8502 case NL80211_CHAN_WIDTH_160:
8503 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
8505 if (!wiphy_ext_feature_isset(&rdev->wiphy,
8506 NL80211_EXT_FEATURE_VHT_IBSS))
8513 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
8514 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
8516 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8518 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8520 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8521 struct ieee80211_supported_band *sband =
8522 wiphy->bands[ibss.chandef.chan->band];
8524 err = ieee80211_get_ratemask(sband, rates, n_rates,
8530 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8531 memcpy(&ibss.ht_capa_mask,
8532 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8533 sizeof(ibss.ht_capa_mask));
8535 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8536 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8538 memcpy(&ibss.ht_capa,
8539 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8540 sizeof(ibss.ht_capa));
8543 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8544 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
8545 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8548 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8551 connkeys = nl80211_parse_connkeys(rdev,
8552 info->attrs[NL80211_ATTR_KEYS],
8554 if (IS_ERR(connkeys))
8555 return PTR_ERR(connkeys);
8557 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
8565 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
8567 ibss.userspace_handles_dfs =
8568 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
8570 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
8576 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
8578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8579 struct net_device *dev = info->user_ptr[1];
8581 if (!rdev->ops->leave_ibss)
8584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
8587 return cfg80211_leave_ibss(rdev, dev, false);
8590 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
8592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8593 struct net_device *dev = info->user_ptr[1];
8594 int mcast_rate[NUM_NL80211_BANDS];
8598 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
8599 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
8600 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
8603 if (!rdev->ops->set_mcast_rate)
8606 memset(mcast_rate, 0, sizeof(mcast_rate));
8608 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
8611 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
8612 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
8615 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
8620 static struct sk_buff *
8621 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
8622 struct wireless_dev *wdev, int approxlen,
8623 u32 portid, u32 seq, enum nl80211_commands cmd,
8624 enum nl80211_attrs attr,
8625 const struct nl80211_vendor_cmd_info *info,
8628 struct sk_buff *skb;
8630 struct nlattr *data;
8632 skb = nlmsg_new(approxlen + 100, gfp);
8636 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
8642 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
8643 goto nla_put_failure;
8646 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
8648 goto nla_put_failure;
8649 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
8651 goto nla_put_failure;
8655 if (nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
8656 wdev_id(wdev), NL80211_ATTR_PAD))
8657 goto nla_put_failure;
8659 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
8660 wdev->netdev->ifindex))
8661 goto nla_put_failure;
8664 data = nla_nest_start(skb, attr);
8666 goto nla_put_failure;
8668 ((void **)skb->cb)[0] = rdev;
8669 ((void **)skb->cb)[1] = hdr;
8670 ((void **)skb->cb)[2] = data;
8679 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
8680 struct wireless_dev *wdev,
8681 enum nl80211_commands cmd,
8682 enum nl80211_attrs attr,
8683 int vendor_event_idx,
8684 int approxlen, gfp_t gfp)
8686 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
8687 const struct nl80211_vendor_cmd_info *info;
8690 case NL80211_CMD_TESTMODE:
8691 if (WARN_ON(vendor_event_idx != -1))
8695 case NL80211_CMD_VENDOR:
8696 if (WARN_ON(vendor_event_idx < 0 ||
8697 vendor_event_idx >= wiphy->n_vendor_events))
8699 info = &wiphy->vendor_events[vendor_event_idx];
8706 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
8707 cmd, attr, info, gfp);
8709 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
8711 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
8713 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8714 void *hdr = ((void **)skb->cb)[1];
8715 struct nlattr *data = ((void **)skb->cb)[2];
8716 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
8718 /* clear CB data for netlink core to own from now on */
8719 memset(skb->cb, 0, sizeof(skb->cb));
8721 nla_nest_end(skb, data);
8722 genlmsg_end(skb, hdr);
8724 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
8725 mcgrp = NL80211_MCGRP_VENDOR;
8727 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
8730 EXPORT_SYMBOL(__cfg80211_send_event_skb);
8732 #ifdef CONFIG_NL80211_TESTMODE
8733 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
8735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8736 struct wireless_dev *wdev =
8737 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8740 if (!rdev->ops->testmode_cmd)
8744 err = PTR_ERR(wdev);
8748 } else if (wdev->wiphy != &rdev->wiphy) {
8752 if (!info->attrs[NL80211_ATTR_TESTDATA])
8755 rdev->cur_cmd_info = info;
8756 err = rdev_testmode_cmd(rdev, wdev,
8757 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
8758 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
8759 rdev->cur_cmd_info = NULL;
8764 static int nl80211_testmode_dump(struct sk_buff *skb,
8765 struct netlink_callback *cb)
8767 struct cfg80211_registered_device *rdev;
8777 * 0 is a valid index, but not valid for args[0],
8778 * so we need to offset by 1.
8780 phy_idx = cb->args[0] - 1;
8782 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
8788 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
8790 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
8791 attrbuf, nl80211_fam.maxattr,
8792 nl80211_policy, NULL);
8796 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
8798 err = PTR_ERR(rdev);
8801 phy_idx = rdev->wiphy_idx;
8803 if (attrbuf[NL80211_ATTR_TESTDATA])
8804 cb->args[1] = (long)attrbuf[NL80211_ATTR_TESTDATA];
8808 data = nla_data((void *)cb->args[1]);
8809 data_len = nla_len((void *)cb->args[1]);
8812 if (!rdev->ops->testmode_dump) {
8818 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
8819 cb->nlh->nlmsg_seq, NLM_F_MULTI,
8820 NL80211_CMD_TESTMODE);
8821 struct nlattr *tmdata;
8826 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
8827 genlmsg_cancel(skb, hdr);
8831 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
8833 genlmsg_cancel(skb, hdr);
8836 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
8837 nla_nest_end(skb, tmdata);
8839 if (err == -ENOBUFS || err == -ENOENT) {
8840 genlmsg_cancel(skb, hdr);
8843 genlmsg_cancel(skb, hdr);
8847 genlmsg_end(skb, hdr);
8852 cb->args[0] = phy_idx + 1;
8859 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
8861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8862 struct net_device *dev = info->user_ptr[1];
8863 struct cfg80211_connect_params connect;
8864 struct wiphy *wiphy;
8865 struct cfg80211_cached_keys *connkeys = NULL;
8868 memset(&connect, 0, sizeof(connect));
8870 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8873 if (!info->attrs[NL80211_ATTR_SSID] ||
8874 !nla_len(info->attrs[NL80211_ATTR_SSID]))
8877 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
8879 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
8880 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
8881 NL80211_CMD_CONNECT))
8884 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
8886 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
8888 if (info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS] &&
8889 !wiphy_ext_feature_isset(&rdev->wiphy,
8890 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
8892 connect.want_1x = info->attrs[NL80211_ATTR_WANT_1X_4WAY_HS];
8894 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
8895 NL80211_MAX_NR_CIPHER_SUITES);
8899 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8900 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8903 wiphy = &rdev->wiphy;
8905 connect.bg_scan_period = -1;
8906 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
8907 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
8908 connect.bg_scan_period =
8909 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
8912 if (info->attrs[NL80211_ATTR_MAC])
8913 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8914 else if (info->attrs[NL80211_ATTR_MAC_HINT])
8915 connect.bssid_hint =
8916 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
8917 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
8918 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
8920 if (info->attrs[NL80211_ATTR_IE]) {
8921 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8922 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8925 if (info->attrs[NL80211_ATTR_USE_MFP]) {
8926 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
8927 if (connect.mfp != NL80211_MFP_REQUIRED &&
8928 connect.mfp != NL80211_MFP_NO)
8931 connect.mfp = NL80211_MFP_NO;
8934 if (info->attrs[NL80211_ATTR_PREV_BSSID])
8935 connect.prev_bssid =
8936 nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
8938 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8939 connect.channel = nl80211_get_valid_chan(
8940 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
8941 if (!connect.channel)
8943 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
8944 connect.channel_hint = nl80211_get_valid_chan(
8945 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
8946 if (!connect.channel_hint)
8950 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
8951 connkeys = nl80211_parse_connkeys(rdev,
8952 info->attrs[NL80211_ATTR_KEYS], NULL);
8953 if (IS_ERR(connkeys))
8954 return PTR_ERR(connkeys);
8957 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
8958 connect.flags |= ASSOC_REQ_DISABLE_HT;
8960 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
8961 memcpy(&connect.ht_capa_mask,
8962 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
8963 sizeof(connect.ht_capa_mask));
8965 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
8966 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
8970 memcpy(&connect.ht_capa,
8971 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
8972 sizeof(connect.ht_capa));
8975 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
8976 connect.flags |= ASSOC_REQ_DISABLE_VHT;
8978 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
8979 memcpy(&connect.vht_capa_mask,
8980 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
8981 sizeof(connect.vht_capa_mask));
8983 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
8984 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
8988 memcpy(&connect.vht_capa,
8989 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
8990 sizeof(connect.vht_capa));
8993 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
8994 if (!((rdev->wiphy.features &
8995 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) &&
8996 (rdev->wiphy.features & NL80211_FEATURE_QUIET)) &&
8997 !wiphy_ext_feature_isset(&rdev->wiphy,
8998 NL80211_EXT_FEATURE_RRM)) {
9002 connect.flags |= ASSOC_REQ_USE_RRM;
9005 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
9006 if (connect.pbss && !rdev->wiphy.bands[NL80211_BAND_60GHZ]) {
9011 if (info->attrs[NL80211_ATTR_BSS_SELECT]) {
9012 /* bss selection makes no sense if bssid is set */
9013 if (connect.bssid) {
9018 err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
9019 wiphy, &connect.bss_select);
9026 if (wiphy_ext_feature_isset(&rdev->wiphy,
9027 NL80211_EXT_FEATURE_FILS_SK_OFFLOAD) &&
9028 info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] &&
9029 info->attrs[NL80211_ATTR_FILS_ERP_REALM] &&
9030 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] &&
9031 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9032 connect.fils_erp_username =
9033 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9034 connect.fils_erp_username_len =
9035 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_USERNAME]);
9036 connect.fils_erp_realm =
9037 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9038 connect.fils_erp_realm_len =
9039 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_REALM]);
9040 connect.fils_erp_next_seq_num =
9042 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM]);
9043 connect.fils_erp_rrk =
9044 nla_data(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9045 connect.fils_erp_rrk_len =
9046 nla_len(info->attrs[NL80211_ATTR_FILS_ERP_RRK]);
9047 } else if (info->attrs[NL80211_ATTR_FILS_ERP_USERNAME] ||
9048 info->attrs[NL80211_ATTR_FILS_ERP_REALM] ||
9049 info->attrs[NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM] ||
9050 info->attrs[NL80211_ATTR_FILS_ERP_RRK]) {
9055 wdev_lock(dev->ieee80211_ptr);
9057 err = cfg80211_connect(rdev, dev, &connect, connkeys,
9058 connect.prev_bssid);
9062 if (!err && info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
9063 dev->ieee80211_ptr->conn_owner_nlportid = info->snd_portid;
9065 memcpy(dev->ieee80211_ptr->disconnect_bssid,
9066 connect.bssid, ETH_ALEN);
9068 memset(dev->ieee80211_ptr->disconnect_bssid,
9072 wdev_unlock(dev->ieee80211_ptr);
9077 static int nl80211_update_connect_params(struct sk_buff *skb,
9078 struct genl_info *info)
9080 struct cfg80211_connect_params connect = {};
9081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9082 struct net_device *dev = info->user_ptr[1];
9083 struct wireless_dev *wdev = dev->ieee80211_ptr;
9087 if (!rdev->ops->update_connect_params)
9090 if (info->attrs[NL80211_ATTR_IE]) {
9091 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9093 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9094 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9095 changed |= UPDATE_ASSOC_IES;
9098 wdev_lock(dev->ieee80211_ptr);
9099 if (!wdev->current_bss)
9102 ret = rdev_update_connect_params(rdev, dev, &connect, changed);
9103 wdev_unlock(dev->ieee80211_ptr);
9108 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
9110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9111 struct net_device *dev = info->user_ptr[1];
9115 if (!info->attrs[NL80211_ATTR_REASON_CODE])
9116 reason = WLAN_REASON_DEAUTH_LEAVING;
9118 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
9123 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9124 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9127 wdev_lock(dev->ieee80211_ptr);
9128 ret = cfg80211_disconnect(rdev, dev, reason, true);
9129 wdev_unlock(dev->ieee80211_ptr);
9133 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
9135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9139 if (info->attrs[NL80211_ATTR_PID]) {
9140 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
9142 net = get_net_ns_by_pid(pid);
9143 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
9144 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
9146 net = get_net_ns_by_fd(fd);
9152 return PTR_ERR(net);
9156 /* check if anything to do */
9157 if (!net_eq(wiphy_net(&rdev->wiphy), net))
9158 err = cfg80211_switch_netns(rdev, net);
9164 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
9166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9167 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
9168 struct cfg80211_pmksa *pmksa) = NULL;
9169 struct net_device *dev = info->user_ptr[1];
9170 struct cfg80211_pmksa pmksa;
9172 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
9174 if (!info->attrs[NL80211_ATTR_PMKID])
9177 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
9179 if (info->attrs[NL80211_ATTR_MAC]) {
9180 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
9181 } else if (info->attrs[NL80211_ATTR_SSID] &&
9182 info->attrs[NL80211_ATTR_FILS_CACHE_ID] &&
9183 (info->genlhdr->cmd == NL80211_CMD_DEL_PMKSA ||
9184 info->attrs[NL80211_ATTR_PMK])) {
9185 pmksa.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
9186 pmksa.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
9188 nla_data(info->attrs[NL80211_ATTR_FILS_CACHE_ID]);
9192 if (info->attrs[NL80211_ATTR_PMK]) {
9193 pmksa.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
9194 pmksa.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
9197 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9198 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9201 switch (info->genlhdr->cmd) {
9202 case NL80211_CMD_SET_PMKSA:
9203 rdev_ops = rdev->ops->set_pmksa;
9205 case NL80211_CMD_DEL_PMKSA:
9206 rdev_ops = rdev->ops->del_pmksa;
9216 return rdev_ops(&rdev->wiphy, dev, &pmksa);
9219 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
9221 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9222 struct net_device *dev = info->user_ptr[1];
9224 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
9225 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
9228 if (!rdev->ops->flush_pmksa)
9231 return rdev_flush_pmksa(rdev, dev);
9234 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
9236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9237 struct net_device *dev = info->user_ptr[1];
9238 u8 action_code, dialog_token;
9239 u32 peer_capability = 0;
9244 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9245 !rdev->ops->tdls_mgmt)
9248 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
9249 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
9250 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
9251 !info->attrs[NL80211_ATTR_IE] ||
9252 !info->attrs[NL80211_ATTR_MAC])
9255 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9256 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
9257 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
9258 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
9259 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
9260 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
9262 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
9264 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
9265 dialog_token, status_code, peer_capability,
9267 nla_data(info->attrs[NL80211_ATTR_IE]),
9268 nla_len(info->attrs[NL80211_ATTR_IE]));
9271 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
9273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9274 struct net_device *dev = info->user_ptr[1];
9275 enum nl80211_tdls_operation operation;
9278 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
9279 !rdev->ops->tdls_oper)
9282 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
9283 !info->attrs[NL80211_ATTR_MAC])
9286 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
9287 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9289 return rdev_tdls_oper(rdev, dev, peer, operation);
9292 static int nl80211_remain_on_channel(struct sk_buff *skb,
9293 struct genl_info *info)
9295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9296 struct wireless_dev *wdev = info->user_ptr[1];
9297 struct cfg80211_chan_def chandef;
9298 const struct cfg80211_chan_def *compat_chandef;
9299 struct sk_buff *msg;
9305 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
9306 !info->attrs[NL80211_ATTR_DURATION])
9309 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9311 if (!rdev->ops->remain_on_channel ||
9312 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
9316 * We should be on that channel for at least a minimum amount of
9317 * time (10ms) but no longer than the driver supports.
9319 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9320 duration > rdev->wiphy.max_remain_on_channel_duration)
9323 err = nl80211_parse_chandef(rdev, info, &chandef);
9328 if (!cfg80211_off_channel_oper_allowed(wdev) &&
9329 !cfg80211_chandef_identical(&wdev->chandef, &chandef)) {
9330 compat_chandef = cfg80211_chandef_compatible(&wdev->chandef,
9332 if (compat_chandef != &chandef) {
9339 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9343 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9344 NL80211_CMD_REMAIN_ON_CHANNEL);
9350 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
9356 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9358 goto nla_put_failure;
9360 genlmsg_end(msg, hdr);
9362 return genlmsg_reply(msg, info);
9371 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
9372 struct genl_info *info)
9374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9375 struct wireless_dev *wdev = info->user_ptr[1];
9378 if (!info->attrs[NL80211_ATTR_COOKIE])
9381 if (!rdev->ops->cancel_remain_on_channel)
9384 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9386 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9389 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
9390 struct genl_info *info)
9392 struct cfg80211_bitrate_mask mask;
9393 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9394 struct net_device *dev = info->user_ptr[1];
9397 if (!rdev->ops->set_bitrate_mask)
9400 err = nl80211_parse_tx_bitrate_mask(info, &mask);
9404 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
9407 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
9409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9410 struct wireless_dev *wdev = info->user_ptr[1];
9411 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
9413 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
9416 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
9417 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
9419 switch (wdev->iftype) {
9420 case NL80211_IFTYPE_STATION:
9421 case NL80211_IFTYPE_ADHOC:
9422 case NL80211_IFTYPE_P2P_CLIENT:
9423 case NL80211_IFTYPE_AP:
9424 case NL80211_IFTYPE_AP_VLAN:
9425 case NL80211_IFTYPE_MESH_POINT:
9426 case NL80211_IFTYPE_P2P_GO:
9427 case NL80211_IFTYPE_P2P_DEVICE:
9429 case NL80211_IFTYPE_NAN:
9434 /* not much point in registering if we can't reply */
9435 if (!rdev->ops->mgmt_tx)
9438 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
9439 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
9440 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
9443 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
9445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9446 struct wireless_dev *wdev = info->user_ptr[1];
9447 struct cfg80211_chan_def chandef;
9451 struct sk_buff *msg = NULL;
9452 struct cfg80211_mgmt_tx_params params = {
9453 .dont_wait_for_ack =
9454 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
9457 if (!info->attrs[NL80211_ATTR_FRAME])
9460 if (!rdev->ops->mgmt_tx)
9463 switch (wdev->iftype) {
9464 case NL80211_IFTYPE_P2P_DEVICE:
9465 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
9467 case NL80211_IFTYPE_STATION:
9468 case NL80211_IFTYPE_ADHOC:
9469 case NL80211_IFTYPE_P2P_CLIENT:
9470 case NL80211_IFTYPE_AP:
9471 case NL80211_IFTYPE_AP_VLAN:
9472 case NL80211_IFTYPE_MESH_POINT:
9473 case NL80211_IFTYPE_P2P_GO:
9475 case NL80211_IFTYPE_NAN:
9480 if (info->attrs[NL80211_ATTR_DURATION]) {
9481 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9483 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
9486 * We should wait on the channel for at least a minimum amount
9487 * of time (10ms) but no longer than the driver supports.
9489 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
9490 params.wait > rdev->wiphy.max_remain_on_channel_duration)
9494 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
9496 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
9499 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
9501 /* get the channel if any has been specified, otherwise pass NULL to
9502 * the driver. The latter will use the current one
9504 chandef.chan = NULL;
9505 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9506 err = nl80211_parse_chandef(rdev, info, &chandef);
9511 if (!chandef.chan && params.offchan)
9515 if (params.offchan && !cfg80211_off_channel_oper_allowed(wdev)) {
9521 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
9522 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
9524 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
9525 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9528 if (len % sizeof(u16))
9531 params.n_csa_offsets = len / sizeof(u16);
9532 params.csa_offsets =
9533 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
9535 /* check that all the offsets fit the frame */
9536 for (i = 0; i < params.n_csa_offsets; i++) {
9537 if (params.csa_offsets[i] >= params.len)
9542 if (!params.dont_wait_for_ack) {
9543 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9547 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9555 params.chan = chandef.chan;
9556 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
9561 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
9563 goto nla_put_failure;
9565 genlmsg_end(msg, hdr);
9566 return genlmsg_reply(msg, info);
9578 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
9580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9581 struct wireless_dev *wdev = info->user_ptr[1];
9584 if (!info->attrs[NL80211_ATTR_COOKIE])
9587 if (!rdev->ops->mgmt_tx_cancel_wait)
9590 switch (wdev->iftype) {
9591 case NL80211_IFTYPE_STATION:
9592 case NL80211_IFTYPE_ADHOC:
9593 case NL80211_IFTYPE_P2P_CLIENT:
9594 case NL80211_IFTYPE_AP:
9595 case NL80211_IFTYPE_AP_VLAN:
9596 case NL80211_IFTYPE_P2P_GO:
9597 case NL80211_IFTYPE_P2P_DEVICE:
9599 case NL80211_IFTYPE_NAN:
9604 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
9606 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
9609 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
9611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9612 struct wireless_dev *wdev;
9613 struct net_device *dev = info->user_ptr[1];
9618 if (!info->attrs[NL80211_ATTR_PS_STATE])
9621 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
9623 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
9626 wdev = dev->ieee80211_ptr;
9628 if (!rdev->ops->set_power_mgmt)
9631 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
9633 if (state == wdev->ps)
9636 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
9642 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
9644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9645 enum nl80211_ps_state ps_state;
9646 struct wireless_dev *wdev;
9647 struct net_device *dev = info->user_ptr[1];
9648 struct sk_buff *msg;
9652 wdev = dev->ieee80211_ptr;
9654 if (!rdev->ops->set_power_mgmt)
9657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9661 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9662 NL80211_CMD_GET_POWER_SAVE);
9669 ps_state = NL80211_PS_ENABLED;
9671 ps_state = NL80211_PS_DISABLED;
9673 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
9674 goto nla_put_failure;
9676 genlmsg_end(msg, hdr);
9677 return genlmsg_reply(msg, info);
9686 static const struct nla_policy
9687 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
9688 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_BINARY },
9689 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
9690 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
9691 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
9692 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
9693 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
9694 [NL80211_ATTR_CQM_RSSI_LEVEL] = { .type = NLA_S32 },
9697 static int nl80211_set_cqm_txe(struct genl_info *info,
9698 u32 rate, u32 pkts, u32 intvl)
9700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9701 struct net_device *dev = info->user_ptr[1];
9702 struct wireless_dev *wdev = dev->ieee80211_ptr;
9704 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
9707 if (!rdev->ops->set_cqm_txe_config)
9710 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9711 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9714 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
9717 static int cfg80211_cqm_rssi_update(struct cfg80211_registered_device *rdev,
9718 struct net_device *dev)
9720 struct wireless_dev *wdev = dev->ieee80211_ptr;
9721 s32 last, low, high;
9726 /* RSSI reporting disabled? */
9727 if (!wdev->cqm_config)
9728 return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
9731 * Obtain current RSSI value if possible, if not and no RSSI threshold
9732 * event has been received yet, we should receive an event after a
9733 * connection is established and enough beacons received to calculate
9736 if (!wdev->cqm_config->last_rssi_event_value && wdev->current_bss &&
9737 rdev->ops->get_station) {
9738 struct station_info sinfo;
9741 mac_addr = wdev->current_bss->pub.bssid;
9743 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
9747 if (sinfo.filled & BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG))
9748 wdev->cqm_config->last_rssi_event_value =
9749 (s8) sinfo.rx_beacon_signal_avg;
9752 last = wdev->cqm_config->last_rssi_event_value;
9753 hyst = wdev->cqm_config->rssi_hyst;
9754 n = wdev->cqm_config->n_rssi_thresholds;
9756 for (i = 0; i < n; i++)
9757 if (last < wdev->cqm_config->rssi_thresholds[i])
9761 (wdev->cqm_config->rssi_thresholds[i - 1] - hyst) : S32_MIN;
9763 (wdev->cqm_config->rssi_thresholds[i] + hyst - 1) : S32_MAX;
9765 return rdev_set_cqm_rssi_range_config(rdev, dev, low, high);
9768 static int nl80211_set_cqm_rssi(struct genl_info *info,
9769 const s32 *thresholds, int n_thresholds,
9772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9773 struct net_device *dev = info->user_ptr[1];
9774 struct wireless_dev *wdev = dev->ieee80211_ptr;
9778 /* Check all values negative and sorted */
9779 for (i = 0; i < n_thresholds; i++) {
9780 if (thresholds[i] > 0 || thresholds[i] <= prev)
9783 prev = thresholds[i];
9786 if (wdev->iftype != NL80211_IFTYPE_STATION &&
9787 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
9791 cfg80211_cqm_config_free(wdev);
9794 if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
9795 if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
9796 return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
9798 return rdev_set_cqm_rssi_config(rdev, dev,
9799 thresholds[0], hysteresis);
9802 if (!wiphy_ext_feature_isset(&rdev->wiphy,
9803 NL80211_EXT_FEATURE_CQM_RSSI_LIST))
9806 if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
9811 struct cfg80211_cqm_config *cqm_config;
9813 cqm_config = kzalloc(sizeof(struct cfg80211_cqm_config) +
9814 n_thresholds * sizeof(s32), GFP_KERNEL);
9820 cqm_config->rssi_hyst = hysteresis;
9821 cqm_config->n_rssi_thresholds = n_thresholds;
9822 memcpy(cqm_config->rssi_thresholds, thresholds,
9823 n_thresholds * sizeof(s32));
9825 wdev->cqm_config = cqm_config;
9828 err = cfg80211_cqm_rssi_update(rdev, dev);
9836 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
9838 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
9842 cqm = info->attrs[NL80211_ATTR_CQM];
9846 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
9847 nl80211_attr_cqm_policy, info->extack);
9851 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
9852 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
9853 const s32 *thresholds =
9854 nla_data(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9855 int len = nla_len(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
9856 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
9861 return nl80211_set_cqm_rssi(info, thresholds, len / 4,
9865 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
9866 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
9867 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
9868 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
9869 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
9870 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
9872 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
9878 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
9880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9881 struct net_device *dev = info->user_ptr[1];
9882 struct ocb_setup setup = {};
9885 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9889 return cfg80211_join_ocb(rdev, dev, &setup);
9892 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
9894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9895 struct net_device *dev = info->user_ptr[1];
9897 return cfg80211_leave_ocb(rdev, dev);
9900 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
9902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9903 struct net_device *dev = info->user_ptr[1];
9904 struct mesh_config cfg;
9905 struct mesh_setup setup;
9908 /* start with default */
9909 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
9910 memcpy(&setup, &default_mesh_setup, sizeof(setup));
9912 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
9913 /* and parse parameters if given */
9914 err = nl80211_parse_mesh_config(info, &cfg, NULL);
9919 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
9920 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
9923 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
9924 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
9926 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
9927 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
9928 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
9931 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
9932 setup.beacon_interval =
9933 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
9935 err = cfg80211_validate_beacon_int(rdev,
9936 NL80211_IFTYPE_MESH_POINT,
9937 setup.beacon_interval);
9942 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
9944 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
9945 if (setup.dtim_period < 1 || setup.dtim_period > 100)
9949 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
9950 /* parse additional setup parameters if given */
9951 err = nl80211_parse_mesh_setup(info, &setup);
9957 cfg.auto_open_plinks = false;
9959 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
9960 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
9964 /* cfg80211_join_mesh() will sort it out */
9965 setup.chandef.chan = NULL;
9968 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
9969 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9971 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
9972 struct ieee80211_supported_band *sband;
9974 if (!setup.chandef.chan)
9977 sband = rdev->wiphy.bands[setup.chandef.chan->band];
9979 err = ieee80211_get_ratemask(sband, rates, n_rates,
9980 &setup.basic_rates);
9985 if (info->attrs[NL80211_ATTR_TX_RATES]) {
9986 err = nl80211_parse_tx_bitrate_mask(info, &setup.beacon_rate);
9990 err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
9991 &setup.beacon_rate);
9996 setup.userspace_handles_dfs =
9997 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
9999 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
10002 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
10004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10005 struct net_device *dev = info->user_ptr[1];
10007 return cfg80211_leave_mesh(rdev, dev);
10011 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
10012 struct cfg80211_registered_device *rdev)
10014 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
10015 struct nlattr *nl_pats, *nl_pat;
10018 if (!wowlan->n_patterns)
10021 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
10025 for (i = 0; i < wowlan->n_patterns; i++) {
10026 nl_pat = nla_nest_start(msg, i + 1);
10029 pat_len = wowlan->patterns[i].pattern_len;
10030 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
10031 wowlan->patterns[i].mask) ||
10032 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10033 wowlan->patterns[i].pattern) ||
10034 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10035 wowlan->patterns[i].pkt_offset))
10037 nla_nest_end(msg, nl_pat);
10039 nla_nest_end(msg, nl_pats);
10044 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
10045 struct cfg80211_wowlan_tcp *tcp)
10047 struct nlattr *nl_tcp;
10052 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
10056 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
10057 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
10058 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
10059 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
10060 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
10061 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
10062 tcp->payload_len, tcp->payload) ||
10063 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
10064 tcp->data_interval) ||
10065 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
10066 tcp->wake_len, tcp->wake_data) ||
10067 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
10068 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
10071 if (tcp->payload_seq.len &&
10072 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
10073 sizeof(tcp->payload_seq), &tcp->payload_seq))
10076 if (tcp->payload_tok.len &&
10077 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
10078 sizeof(tcp->payload_tok) + tcp->tokens_size,
10079 &tcp->payload_tok))
10082 nla_nest_end(msg, nl_tcp);
10087 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
10088 struct cfg80211_sched_scan_request *req)
10090 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
10096 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
10100 if (req->n_scan_plans == 1 &&
10101 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
10102 req->scan_plans[0].interval * 1000))
10105 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
10108 if (req->relative_rssi_set) {
10109 struct nl80211_bss_select_rssi_adjust rssi_adjust;
10111 if (nla_put_s8(msg, NL80211_ATTR_SCHED_SCAN_RELATIVE_RSSI,
10112 req->relative_rssi))
10115 rssi_adjust.band = req->rssi_adjust.band;
10116 rssi_adjust.delta = req->rssi_adjust.delta;
10117 if (nla_put(msg, NL80211_ATTR_SCHED_SCAN_RSSI_ADJUST,
10118 sizeof(rssi_adjust), &rssi_adjust))
10122 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10126 for (i = 0; i < req->n_channels; i++) {
10127 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10131 nla_nest_end(msg, freqs);
10133 if (req->n_match_sets) {
10134 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
10138 for (i = 0; i < req->n_match_sets; i++) {
10139 match = nla_nest_start(msg, i);
10143 if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
10144 req->match_sets[i].ssid.ssid_len,
10145 req->match_sets[i].ssid.ssid))
10147 nla_nest_end(msg, match);
10149 nla_nest_end(msg, matches);
10152 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
10156 for (i = 0; i < req->n_scan_plans; i++) {
10157 scan_plan = nla_nest_start(msg, i + 1);
10162 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
10163 req->scan_plans[i].interval) ||
10164 (req->scan_plans[i].iterations &&
10165 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
10166 req->scan_plans[i].iterations)))
10168 nla_nest_end(msg, scan_plan);
10170 nla_nest_end(msg, scan_plans);
10172 nla_nest_end(msg, nd);
10177 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
10179 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10180 struct sk_buff *msg;
10182 u32 size = NLMSG_DEFAULT_SIZE;
10184 if (!rdev->wiphy.wowlan)
10185 return -EOPNOTSUPP;
10187 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
10188 /* adjust size to have room for all the data */
10189 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
10190 rdev->wiphy.wowlan_config->tcp->payload_len +
10191 rdev->wiphy.wowlan_config->tcp->wake_len +
10192 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
10195 msg = nlmsg_new(size, GFP_KERNEL);
10199 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10200 NL80211_CMD_GET_WOWLAN);
10202 goto nla_put_failure;
10204 if (rdev->wiphy.wowlan_config) {
10205 struct nlattr *nl_wowlan;
10207 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10209 goto nla_put_failure;
10211 if ((rdev->wiphy.wowlan_config->any &&
10212 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
10213 (rdev->wiphy.wowlan_config->disconnect &&
10214 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
10215 (rdev->wiphy.wowlan_config->magic_pkt &&
10216 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
10217 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
10218 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
10219 (rdev->wiphy.wowlan_config->eap_identity_req &&
10220 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
10221 (rdev->wiphy.wowlan_config->four_way_handshake &&
10222 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
10223 (rdev->wiphy.wowlan_config->rfkill_release &&
10224 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
10225 goto nla_put_failure;
10227 if (nl80211_send_wowlan_patterns(msg, rdev))
10228 goto nla_put_failure;
10230 if (nl80211_send_wowlan_tcp(msg,
10231 rdev->wiphy.wowlan_config->tcp))
10232 goto nla_put_failure;
10234 if (nl80211_send_wowlan_nd(
10236 rdev->wiphy.wowlan_config->nd_config))
10237 goto nla_put_failure;
10239 nla_nest_end(msg, nl_wowlan);
10242 genlmsg_end(msg, hdr);
10243 return genlmsg_reply(msg, info);
10250 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
10251 struct nlattr *attr,
10252 struct cfg80211_wowlan *trig)
10254 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
10255 struct cfg80211_wowlan_tcp *cfg;
10256 struct nl80211_wowlan_tcp_data_token *tok = NULL;
10257 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
10259 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
10262 if (!rdev->wiphy.wowlan->tcp)
10265 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TCP, attr,
10266 nl80211_wowlan_tcp_policy, NULL);
10270 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
10271 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
10272 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
10273 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
10274 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
10275 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
10276 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
10277 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
10280 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
10281 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
10284 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
10285 rdev->wiphy.wowlan->tcp->data_interval_max ||
10286 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
10289 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
10290 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
10293 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
10294 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
10297 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
10298 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10300 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
10301 tokens_size = tokln - sizeof(*tok);
10303 if (!tok->len || tokens_size % tok->len)
10305 if (!rdev->wiphy.wowlan->tcp->tok)
10307 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
10309 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
10311 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
10313 if (tok->offset + tok->len > data_size)
10317 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
10318 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
10319 if (!rdev->wiphy.wowlan->tcp->seq)
10321 if (seq->len == 0 || seq->len > 4)
10323 if (seq->len + seq->offset > data_size)
10327 size = sizeof(*cfg);
10329 size += wake_size + wake_mask_size;
10330 size += tokens_size;
10332 cfg = kzalloc(size, GFP_KERNEL);
10335 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
10336 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
10337 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
10339 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
10340 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
10344 /* allocate a socket and port for it and use it */
10345 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
10346 IPPROTO_TCP, &cfg->sock, 1);
10351 if (inet_csk_get_port(cfg->sock->sk, port)) {
10352 sock_release(cfg->sock);
10354 return -EADDRINUSE;
10356 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
10362 cfg->src_port = port;
10365 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
10366 cfg->payload_len = data_size;
10367 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
10368 memcpy((void *)cfg->payload,
10369 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
10372 cfg->payload_seq = *seq;
10373 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
10374 cfg->wake_len = wake_size;
10375 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
10376 memcpy((void *)cfg->wake_data,
10377 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
10379 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
10380 data_size + wake_size;
10381 memcpy((void *)cfg->wake_mask,
10382 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
10385 cfg->tokens_size = tokens_size;
10386 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
10394 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
10395 const struct wiphy_wowlan_support *wowlan,
10396 struct nlattr *attr,
10397 struct cfg80211_wowlan *trig)
10399 struct nlattr **tb;
10402 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
10406 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
10411 err = nla_parse_nested(tb, NL80211_ATTR_MAX, attr, nl80211_policy,
10416 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb,
10417 wowlan->max_nd_match_sets);
10418 err = PTR_ERR_OR_ZERO(trig->nd_config);
10420 trig->nd_config = NULL;
10427 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
10429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10430 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
10431 struct cfg80211_wowlan new_triggers = {};
10432 struct cfg80211_wowlan *ntrig;
10433 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
10435 bool prev_enabled = rdev->wiphy.wowlan_config;
10436 bool regular = false;
10439 return -EOPNOTSUPP;
10441 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
10442 cfg80211_rdev_free_wowlan(rdev);
10443 rdev->wiphy.wowlan_config = NULL;
10447 err = nla_parse_nested(tb, MAX_NL80211_WOWLAN_TRIG,
10448 info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS],
10449 nl80211_wowlan_policy, info->extack);
10453 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
10454 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
10456 new_triggers.any = true;
10459 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
10460 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
10462 new_triggers.disconnect = true;
10466 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
10467 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
10469 new_triggers.magic_pkt = true;
10473 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
10476 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
10477 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
10479 new_triggers.gtk_rekey_failure = true;
10483 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
10484 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
10486 new_triggers.eap_identity_req = true;
10490 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
10491 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
10493 new_triggers.four_way_handshake = true;
10497 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
10498 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
10500 new_triggers.rfkill_release = true;
10504 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
10505 struct nlattr *pat;
10506 int n_patterns = 0;
10507 int rem, pat_len, mask_len, pkt_offset;
10508 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10512 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10515 if (n_patterns > wowlan->n_patterns)
10518 new_triggers.patterns = kcalloc(n_patterns,
10519 sizeof(new_triggers.patterns[0]),
10521 if (!new_triggers.patterns)
10524 new_triggers.n_patterns = n_patterns;
10527 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
10531 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
10532 NULL, info->extack);
10534 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10535 !pat_tb[NL80211_PKTPAT_PATTERN])
10537 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10538 mask_len = DIV_ROUND_UP(pat_len, 8);
10539 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10541 if (pat_len > wowlan->pattern_max_len ||
10542 pat_len < wowlan->pattern_min_len)
10545 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10548 pkt_offset = nla_get_u32(
10549 pat_tb[NL80211_PKTPAT_OFFSET]);
10550 if (pkt_offset > wowlan->max_pkt_offset)
10552 new_triggers.patterns[i].pkt_offset = pkt_offset;
10554 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10559 new_triggers.patterns[i].mask = mask_pat;
10560 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10562 mask_pat += mask_len;
10563 new_triggers.patterns[i].pattern = mask_pat;
10564 new_triggers.patterns[i].pattern_len = pat_len;
10566 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10572 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
10574 err = nl80211_parse_wowlan_tcp(
10575 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
10581 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
10583 err = nl80211_parse_wowlan_nd(
10584 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
10590 /* The 'any' trigger means the device continues operating more or less
10591 * as in its normal operation mode and wakes up the host on most of the
10592 * normal interrupts (like packet RX, ...)
10593 * It therefore makes little sense to combine with the more constrained
10594 * wakeup trigger modes.
10596 if (new_triggers.any && regular) {
10601 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
10606 cfg80211_rdev_free_wowlan(rdev);
10607 rdev->wiphy.wowlan_config = ntrig;
10610 if (rdev->ops->set_wakeup &&
10611 prev_enabled != !!rdev->wiphy.wowlan_config)
10612 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
10616 for (i = 0; i < new_triggers.n_patterns; i++)
10617 kfree(new_triggers.patterns[i].mask);
10618 kfree(new_triggers.patterns);
10619 if (new_triggers.tcp && new_triggers.tcp->sock)
10620 sock_release(new_triggers.tcp->sock);
10621 kfree(new_triggers.tcp);
10622 kfree(new_triggers.nd_config);
10627 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
10628 struct cfg80211_registered_device *rdev)
10630 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
10632 struct cfg80211_coalesce_rules *rule;
10634 if (!rdev->coalesce->n_rules)
10637 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
10641 for (i = 0; i < rdev->coalesce->n_rules; i++) {
10642 nl_rule = nla_nest_start(msg, i + 1);
10646 rule = &rdev->coalesce->rules[i];
10647 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
10651 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
10655 nl_pats = nla_nest_start(msg,
10656 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
10660 for (j = 0; j < rule->n_patterns; j++) {
10661 nl_pat = nla_nest_start(msg, j + 1);
10664 pat_len = rule->patterns[j].pattern_len;
10665 if (nla_put(msg, NL80211_PKTPAT_MASK,
10666 DIV_ROUND_UP(pat_len, 8),
10667 rule->patterns[j].mask) ||
10668 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
10669 rule->patterns[j].pattern) ||
10670 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
10671 rule->patterns[j].pkt_offset))
10673 nla_nest_end(msg, nl_pat);
10675 nla_nest_end(msg, nl_pats);
10676 nla_nest_end(msg, nl_rule);
10678 nla_nest_end(msg, nl_rules);
10683 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
10685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10686 struct sk_buff *msg;
10689 if (!rdev->wiphy.coalesce)
10690 return -EOPNOTSUPP;
10692 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10696 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10697 NL80211_CMD_GET_COALESCE);
10699 goto nla_put_failure;
10701 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
10702 goto nla_put_failure;
10704 genlmsg_end(msg, hdr);
10705 return genlmsg_reply(msg, info);
10712 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
10714 struct cfg80211_coalesce *coalesce = rdev->coalesce;
10716 struct cfg80211_coalesce_rules *rule;
10721 for (i = 0; i < coalesce->n_rules; i++) {
10722 rule = &coalesce->rules[i];
10723 for (j = 0; j < rule->n_patterns; j++)
10724 kfree(rule->patterns[j].mask);
10725 kfree(rule->patterns);
10727 kfree(coalesce->rules);
10729 rdev->coalesce = NULL;
10732 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
10733 struct nlattr *rule,
10734 struct cfg80211_coalesce_rules *new_rule)
10737 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10738 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
10739 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
10740 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
10742 err = nla_parse_nested(tb, NL80211_ATTR_COALESCE_RULE_MAX, rule,
10743 nl80211_coalesce_policy, NULL);
10747 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
10749 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
10750 if (new_rule->delay > coalesce->max_delay)
10753 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
10754 new_rule->condition =
10755 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
10756 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
10757 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
10760 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
10763 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10766 if (n_patterns > coalesce->n_patterns)
10769 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
10771 if (!new_rule->patterns)
10774 new_rule->n_patterns = n_patterns;
10777 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
10781 nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL, NULL);
10782 if (!pat_tb[NL80211_PKTPAT_MASK] ||
10783 !pat_tb[NL80211_PKTPAT_PATTERN])
10785 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
10786 mask_len = DIV_ROUND_UP(pat_len, 8);
10787 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
10789 if (pat_len > coalesce->pattern_max_len ||
10790 pat_len < coalesce->pattern_min_len)
10793 if (!pat_tb[NL80211_PKTPAT_OFFSET])
10796 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
10797 if (pkt_offset > coalesce->max_pkt_offset)
10799 new_rule->patterns[i].pkt_offset = pkt_offset;
10801 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
10805 new_rule->patterns[i].mask = mask_pat;
10806 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
10809 mask_pat += mask_len;
10810 new_rule->patterns[i].pattern = mask_pat;
10811 new_rule->patterns[i].pattern_len = pat_len;
10812 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
10820 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
10822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10823 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
10824 struct cfg80211_coalesce new_coalesce = {};
10825 struct cfg80211_coalesce *n_coalesce;
10826 int err, rem_rule, n_rules = 0, i, j;
10827 struct nlattr *rule;
10828 struct cfg80211_coalesce_rules *tmp_rule;
10830 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
10831 return -EOPNOTSUPP;
10833 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
10834 cfg80211_rdev_free_coalesce(rdev);
10835 rdev_set_coalesce(rdev, NULL);
10839 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10842 if (n_rules > coalesce->n_rules)
10845 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
10847 if (!new_coalesce.rules)
10850 new_coalesce.n_rules = n_rules;
10853 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
10855 err = nl80211_parse_coalesce_rule(rdev, rule,
10856 &new_coalesce.rules[i]);
10863 err = rdev_set_coalesce(rdev, &new_coalesce);
10867 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
10872 cfg80211_rdev_free_coalesce(rdev);
10873 rdev->coalesce = n_coalesce;
10877 for (i = 0; i < new_coalesce.n_rules; i++) {
10878 tmp_rule = &new_coalesce.rules[i];
10879 for (j = 0; j < tmp_rule->n_patterns; j++)
10880 kfree(tmp_rule->patterns[j].mask);
10881 kfree(tmp_rule->patterns);
10883 kfree(new_coalesce.rules);
10888 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
10890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10891 struct net_device *dev = info->user_ptr[1];
10892 struct wireless_dev *wdev = dev->ieee80211_ptr;
10893 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
10894 struct cfg80211_gtk_rekey_data rekey_data;
10897 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
10900 err = nla_parse_nested(tb, MAX_NL80211_REKEY_DATA,
10901 info->attrs[NL80211_ATTR_REKEY_DATA],
10902 nl80211_rekey_policy, info->extack);
10906 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
10908 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
10910 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
10913 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
10914 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
10915 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
10918 if (!wdev->current_bss) {
10923 if (!rdev->ops->set_rekey_data) {
10928 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
10934 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
10935 struct genl_info *info)
10937 struct net_device *dev = info->user_ptr[1];
10938 struct wireless_dev *wdev = dev->ieee80211_ptr;
10940 if (wdev->iftype != NL80211_IFTYPE_AP &&
10941 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10944 if (wdev->ap_unexpected_nlportid)
10947 wdev->ap_unexpected_nlportid = info->snd_portid;
10951 static int nl80211_probe_client(struct sk_buff *skb,
10952 struct genl_info *info)
10954 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10955 struct net_device *dev = info->user_ptr[1];
10956 struct wireless_dev *wdev = dev->ieee80211_ptr;
10957 struct sk_buff *msg;
10963 if (wdev->iftype != NL80211_IFTYPE_AP &&
10964 wdev->iftype != NL80211_IFTYPE_P2P_GO)
10965 return -EOPNOTSUPP;
10967 if (!info->attrs[NL80211_ATTR_MAC])
10970 if (!rdev->ops->probe_client)
10971 return -EOPNOTSUPP;
10973 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10977 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10978 NL80211_CMD_PROBE_CLIENT);
10984 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10986 err = rdev_probe_client(rdev, dev, addr, &cookie);
10990 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
10992 goto nla_put_failure;
10994 genlmsg_end(msg, hdr);
10996 return genlmsg_reply(msg, info);
11005 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
11007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11008 struct cfg80211_beacon_registration *reg, *nreg;
11011 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
11012 return -EOPNOTSUPP;
11014 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
11018 /* First, check if already registered. */
11019 spin_lock_bh(&rdev->beacon_registrations_lock);
11020 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11021 if (reg->nlportid == info->snd_portid) {
11026 /* Add it to the list */
11027 nreg->nlportid = info->snd_portid;
11028 list_add(&nreg->list, &rdev->beacon_registrations);
11030 spin_unlock_bh(&rdev->beacon_registrations_lock);
11034 spin_unlock_bh(&rdev->beacon_registrations_lock);
11039 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
11041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11042 struct wireless_dev *wdev = info->user_ptr[1];
11045 if (!rdev->ops->start_p2p_device)
11046 return -EOPNOTSUPP;
11048 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11049 return -EOPNOTSUPP;
11051 if (wdev_running(wdev))
11054 if (rfkill_blocked(rdev->rfkill))
11057 err = rdev_start_p2p_device(rdev, wdev);
11061 wdev->is_running = true;
11067 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
11069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11070 struct wireless_dev *wdev = info->user_ptr[1];
11072 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
11073 return -EOPNOTSUPP;
11075 if (!rdev->ops->stop_p2p_device)
11076 return -EOPNOTSUPP;
11078 cfg80211_stop_p2p_device(rdev, wdev);
11083 static int nl80211_start_nan(struct sk_buff *skb, struct genl_info *info)
11085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11086 struct wireless_dev *wdev = info->user_ptr[1];
11087 struct cfg80211_nan_conf conf = {};
11090 if (wdev->iftype != NL80211_IFTYPE_NAN)
11091 return -EOPNOTSUPP;
11093 if (wdev_running(wdev))
11096 if (rfkill_blocked(rdev->rfkill))
11099 if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF])
11103 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11104 if (!conf.master_pref)
11107 if (info->attrs[NL80211_ATTR_BANDS]) {
11108 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11110 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11111 return -EOPNOTSUPP;
11113 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11116 conf.bands = bands;
11119 err = rdev_start_nan(rdev, wdev, &conf);
11123 wdev->is_running = true;
11129 static int nl80211_stop_nan(struct sk_buff *skb, struct genl_info *info)
11131 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11132 struct wireless_dev *wdev = info->user_ptr[1];
11134 if (wdev->iftype != NL80211_IFTYPE_NAN)
11135 return -EOPNOTSUPP;
11137 cfg80211_stop_nan(rdev, wdev);
11142 static int validate_nan_filter(struct nlattr *filter_attr)
11144 struct nlattr *attr;
11145 int len = 0, n_entries = 0, rem;
11147 nla_for_each_nested(attr, filter_attr, rem) {
11148 len += nla_len(attr);
11158 static int handle_nan_filter(struct nlattr *attr_filter,
11159 struct cfg80211_nan_func *func,
11162 struct nlattr *attr;
11163 int n_entries, rem, i;
11164 struct cfg80211_nan_func_filter *filter;
11166 n_entries = validate_nan_filter(attr_filter);
11170 BUILD_BUG_ON(sizeof(*func->rx_filters) != sizeof(*func->tx_filters));
11172 filter = kcalloc(n_entries, sizeof(*func->rx_filters), GFP_KERNEL);
11177 nla_for_each_nested(attr, attr_filter, rem) {
11178 filter[i].filter = nla_memdup(attr, GFP_KERNEL);
11179 filter[i].len = nla_len(attr);
11183 func->num_tx_filters = n_entries;
11184 func->tx_filters = filter;
11186 func->num_rx_filters = n_entries;
11187 func->rx_filters = filter;
11193 static int nl80211_nan_add_func(struct sk_buff *skb,
11194 struct genl_info *info)
11196 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11197 struct wireless_dev *wdev = info->user_ptr[1];
11198 struct nlattr *tb[NUM_NL80211_NAN_FUNC_ATTR], *func_attr;
11199 struct cfg80211_nan_func *func;
11200 struct sk_buff *msg = NULL;
11204 if (wdev->iftype != NL80211_IFTYPE_NAN)
11205 return -EOPNOTSUPP;
11207 if (!wdev_running(wdev))
11210 if (!info->attrs[NL80211_ATTR_NAN_FUNC])
11213 err = nla_parse_nested(tb, NL80211_NAN_FUNC_ATTR_MAX,
11214 info->attrs[NL80211_ATTR_NAN_FUNC],
11215 nl80211_nan_func_policy, info->extack);
11219 func = kzalloc(sizeof(*func), GFP_KERNEL);
11223 func->cookie = wdev->wiphy->cookie_counter++;
11225 if (!tb[NL80211_NAN_FUNC_TYPE] ||
11226 nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]) > NL80211_NAN_FUNC_MAX_TYPE) {
11232 func->type = nla_get_u8(tb[NL80211_NAN_FUNC_TYPE]);
11234 if (!tb[NL80211_NAN_FUNC_SERVICE_ID]) {
11239 memcpy(func->service_id, nla_data(tb[NL80211_NAN_FUNC_SERVICE_ID]),
11240 sizeof(func->service_id));
11242 func->close_range =
11243 nla_get_flag(tb[NL80211_NAN_FUNC_CLOSE_RANGE]);
11245 if (tb[NL80211_NAN_FUNC_SERVICE_INFO]) {
11246 func->serv_spec_info_len =
11247 nla_len(tb[NL80211_NAN_FUNC_SERVICE_INFO]);
11248 func->serv_spec_info =
11249 kmemdup(nla_data(tb[NL80211_NAN_FUNC_SERVICE_INFO]),
11250 func->serv_spec_info_len,
11252 if (!func->serv_spec_info) {
11258 if (tb[NL80211_NAN_FUNC_TTL])
11259 func->ttl = nla_get_u32(tb[NL80211_NAN_FUNC_TTL]);
11261 switch (func->type) {
11262 case NL80211_NAN_FUNC_PUBLISH:
11263 if (!tb[NL80211_NAN_FUNC_PUBLISH_TYPE]) {
11268 func->publish_type =
11269 nla_get_u8(tb[NL80211_NAN_FUNC_PUBLISH_TYPE]);
11270 func->publish_bcast =
11271 nla_get_flag(tb[NL80211_NAN_FUNC_PUBLISH_BCAST]);
11273 if ((!(func->publish_type & NL80211_NAN_SOLICITED_PUBLISH)) &&
11274 func->publish_bcast) {
11279 case NL80211_NAN_FUNC_SUBSCRIBE:
11280 func->subscribe_active =
11281 nla_get_flag(tb[NL80211_NAN_FUNC_SUBSCRIBE_ACTIVE]);
11283 case NL80211_NAN_FUNC_FOLLOW_UP:
11284 if (!tb[NL80211_NAN_FUNC_FOLLOW_UP_ID] ||
11285 !tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]) {
11290 func->followup_id =
11291 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_ID]);
11292 func->followup_reqid =
11293 nla_get_u8(tb[NL80211_NAN_FUNC_FOLLOW_UP_REQ_ID]);
11294 memcpy(func->followup_dest.addr,
11295 nla_data(tb[NL80211_NAN_FUNC_FOLLOW_UP_DEST]),
11296 sizeof(func->followup_dest.addr));
11307 if (tb[NL80211_NAN_FUNC_SRF]) {
11308 struct nlattr *srf_tb[NUM_NL80211_NAN_SRF_ATTR];
11310 err = nla_parse_nested(srf_tb, NL80211_NAN_SRF_ATTR_MAX,
11311 tb[NL80211_NAN_FUNC_SRF],
11312 nl80211_nan_srf_policy, info->extack);
11316 func->srf_include =
11317 nla_get_flag(srf_tb[NL80211_NAN_SRF_INCLUDE]);
11319 if (srf_tb[NL80211_NAN_SRF_BF]) {
11320 if (srf_tb[NL80211_NAN_SRF_MAC_ADDRS] ||
11321 !srf_tb[NL80211_NAN_SRF_BF_IDX]) {
11327 nla_len(srf_tb[NL80211_NAN_SRF_BF]);
11329 kmemdup(nla_data(srf_tb[NL80211_NAN_SRF_BF]),
11330 func->srf_bf_len, GFP_KERNEL);
11331 if (!func->srf_bf) {
11337 nla_get_u8(srf_tb[NL80211_NAN_SRF_BF_IDX]);
11339 struct nlattr *attr, *mac_attr =
11340 srf_tb[NL80211_NAN_SRF_MAC_ADDRS];
11341 int n_entries, rem, i = 0;
11348 n_entries = validate_acl_mac_addrs(mac_attr);
11349 if (n_entries <= 0) {
11354 func->srf_num_macs = n_entries;
11356 kzalloc(sizeof(*func->srf_macs) * n_entries,
11358 if (!func->srf_macs) {
11363 nla_for_each_nested(attr, mac_attr, rem)
11364 memcpy(func->srf_macs[i++].addr, nla_data(attr),
11365 sizeof(*func->srf_macs));
11369 if (tb[NL80211_NAN_FUNC_TX_MATCH_FILTER]) {
11370 err = handle_nan_filter(tb[NL80211_NAN_FUNC_TX_MATCH_FILTER],
11376 if (tb[NL80211_NAN_FUNC_RX_MATCH_FILTER]) {
11377 err = handle_nan_filter(tb[NL80211_NAN_FUNC_RX_MATCH_FILTER],
11383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11389 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11390 NL80211_CMD_ADD_NAN_FUNCTION);
11391 /* This can't really happen - we just allocated 4KB */
11392 if (WARN_ON(!hdr)) {
11397 err = rdev_add_nan_func(rdev, wdev, func);
11400 cfg80211_free_nan_func(func);
11405 /* propagate the instance id and cookie to userspace */
11406 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, func->cookie,
11408 goto nla_put_failure;
11410 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11412 goto nla_put_failure;
11414 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID,
11415 func->instance_id))
11416 goto nla_put_failure;
11418 nla_nest_end(msg, func_attr);
11420 genlmsg_end(msg, hdr);
11421 return genlmsg_reply(msg, info);
11428 static int nl80211_nan_del_func(struct sk_buff *skb,
11429 struct genl_info *info)
11431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11432 struct wireless_dev *wdev = info->user_ptr[1];
11435 if (wdev->iftype != NL80211_IFTYPE_NAN)
11436 return -EOPNOTSUPP;
11438 if (!wdev_running(wdev))
11441 if (!info->attrs[NL80211_ATTR_COOKIE])
11444 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
11446 rdev_del_nan_func(rdev, wdev, cookie);
11451 static int nl80211_nan_change_config(struct sk_buff *skb,
11452 struct genl_info *info)
11454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11455 struct wireless_dev *wdev = info->user_ptr[1];
11456 struct cfg80211_nan_conf conf = {};
11459 if (wdev->iftype != NL80211_IFTYPE_NAN)
11460 return -EOPNOTSUPP;
11462 if (!wdev_running(wdev))
11465 if (info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) {
11467 nla_get_u8(info->attrs[NL80211_ATTR_NAN_MASTER_PREF]);
11468 if (conf.master_pref <= 1 || conf.master_pref == 255)
11471 changed |= CFG80211_NAN_CONF_CHANGED_PREF;
11474 if (info->attrs[NL80211_ATTR_BANDS]) {
11475 u32 bands = nla_get_u32(info->attrs[NL80211_ATTR_BANDS]);
11477 if (bands & ~(u32)wdev->wiphy->nan_supported_bands)
11478 return -EOPNOTSUPP;
11480 if (bands && !(bands & BIT(NL80211_BAND_2GHZ)))
11483 conf.bands = bands;
11484 changed |= CFG80211_NAN_CONF_CHANGED_BANDS;
11490 return rdev_nan_change_conf(rdev, wdev, &conf, changed);
11493 void cfg80211_nan_match(struct wireless_dev *wdev,
11494 struct cfg80211_nan_match_params *match, gfp_t gfp)
11496 struct wiphy *wiphy = wdev->wiphy;
11497 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11498 struct nlattr *match_attr, *local_func_attr, *peer_func_attr;
11499 struct sk_buff *msg;
11502 if (WARN_ON(!match->inst_id || !match->peer_inst_id || !match->addr))
11505 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11509 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NAN_MATCH);
11515 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11516 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11517 wdev->netdev->ifindex)) ||
11518 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11520 goto nla_put_failure;
11522 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, match->cookie,
11523 NL80211_ATTR_PAD) ||
11524 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, match->addr))
11525 goto nla_put_failure;
11527 match_attr = nla_nest_start(msg, NL80211_ATTR_NAN_MATCH);
11529 goto nla_put_failure;
11531 local_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_LOCAL);
11532 if (!local_func_attr)
11533 goto nla_put_failure;
11535 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->inst_id))
11536 goto nla_put_failure;
11538 nla_nest_end(msg, local_func_attr);
11540 peer_func_attr = nla_nest_start(msg, NL80211_NAN_MATCH_FUNC_PEER);
11541 if (!peer_func_attr)
11542 goto nla_put_failure;
11544 if (nla_put_u8(msg, NL80211_NAN_FUNC_TYPE, match->type) ||
11545 nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, match->peer_inst_id))
11546 goto nla_put_failure;
11548 if (match->info && match->info_len &&
11549 nla_put(msg, NL80211_NAN_FUNC_SERVICE_INFO, match->info_len,
11551 goto nla_put_failure;
11553 nla_nest_end(msg, peer_func_attr);
11554 nla_nest_end(msg, match_attr);
11555 genlmsg_end(msg, hdr);
11557 if (!wdev->owner_nlportid)
11558 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11559 msg, 0, NL80211_MCGRP_NAN, gfp);
11561 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11562 wdev->owner_nlportid);
11569 EXPORT_SYMBOL(cfg80211_nan_match);
11571 void cfg80211_nan_func_terminated(struct wireless_dev *wdev,
11573 enum nl80211_nan_func_term_reason reason,
11574 u64 cookie, gfp_t gfp)
11576 struct wiphy *wiphy = wdev->wiphy;
11577 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11578 struct sk_buff *msg;
11579 struct nlattr *func_attr;
11582 if (WARN_ON(!inst_id))
11585 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11589 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_NAN_FUNCTION);
11595 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11596 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11597 wdev->netdev->ifindex)) ||
11598 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
11600 goto nla_put_failure;
11602 if (nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
11604 goto nla_put_failure;
11606 func_attr = nla_nest_start(msg, NL80211_ATTR_NAN_FUNC);
11608 goto nla_put_failure;
11610 if (nla_put_u8(msg, NL80211_NAN_FUNC_INSTANCE_ID, inst_id) ||
11611 nla_put_u8(msg, NL80211_NAN_FUNC_TERM_REASON, reason))
11612 goto nla_put_failure;
11614 nla_nest_end(msg, func_attr);
11615 genlmsg_end(msg, hdr);
11617 if (!wdev->owner_nlportid)
11618 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
11619 msg, 0, NL80211_MCGRP_NAN, gfp);
11621 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg,
11622 wdev->owner_nlportid);
11629 EXPORT_SYMBOL(cfg80211_nan_func_terminated);
11631 static int nl80211_get_protocol_features(struct sk_buff *skb,
11632 struct genl_info *info)
11635 struct sk_buff *msg;
11637 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11641 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
11642 NL80211_CMD_GET_PROTOCOL_FEATURES);
11644 goto nla_put_failure;
11646 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
11647 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
11648 goto nla_put_failure;
11650 genlmsg_end(msg, hdr);
11651 return genlmsg_reply(msg, info);
11658 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
11660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11661 struct cfg80211_update_ft_ies_params ft_params;
11662 struct net_device *dev = info->user_ptr[1];
11664 if (!rdev->ops->update_ft_ies)
11665 return -EOPNOTSUPP;
11667 if (!info->attrs[NL80211_ATTR_MDID] ||
11668 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
11671 memset(&ft_params, 0, sizeof(ft_params));
11672 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
11673 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
11674 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
11676 return rdev_update_ft_ies(rdev, dev, &ft_params);
11679 static int nl80211_crit_protocol_start(struct sk_buff *skb,
11680 struct genl_info *info)
11682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11683 struct wireless_dev *wdev = info->user_ptr[1];
11684 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
11688 if (!rdev->ops->crit_proto_start)
11689 return -EOPNOTSUPP;
11691 if (WARN_ON(!rdev->ops->crit_proto_stop))
11694 if (rdev->crit_proto_nlportid)
11697 /* determine protocol if provided */
11698 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
11699 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
11701 if (proto >= NUM_NL80211_CRIT_PROTO)
11704 /* timeout must be provided */
11705 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
11709 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
11711 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
11714 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
11716 rdev->crit_proto_nlportid = info->snd_portid;
11721 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
11722 struct genl_info *info)
11724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11725 struct wireless_dev *wdev = info->user_ptr[1];
11727 if (!rdev->ops->crit_proto_stop)
11728 return -EOPNOTSUPP;
11730 if (rdev->crit_proto_nlportid) {
11731 rdev->crit_proto_nlportid = 0;
11732 rdev_crit_proto_stop(rdev, wdev);
11737 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
11739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
11740 struct wireless_dev *wdev =
11741 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
11745 if (!rdev->wiphy.vendor_commands)
11746 return -EOPNOTSUPP;
11748 if (IS_ERR(wdev)) {
11749 err = PTR_ERR(wdev);
11750 if (err != -EINVAL)
11753 } else if (wdev->wiphy != &rdev->wiphy) {
11757 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
11758 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
11761 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
11762 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
11763 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
11764 const struct wiphy_vendor_command *vcmd;
11768 vcmd = &rdev->wiphy.vendor_commands[i];
11770 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11773 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11774 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11777 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11781 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
11782 if (!wdev_running(wdev))
11787 return -EOPNOTSUPP;
11792 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
11793 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11794 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
11797 rdev->cur_cmd_info = info;
11798 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
11800 rdev->cur_cmd_info = NULL;
11804 return -EOPNOTSUPP;
11807 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
11808 struct netlink_callback *cb,
11809 struct cfg80211_registered_device **rdev,
11810 struct wireless_dev **wdev)
11812 struct nlattr **attrbuf = genl_family_attrbuf(&nl80211_fam);
11818 unsigned int data_len = 0;
11821 /* subtract the 1 again here */
11822 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
11823 struct wireless_dev *tmp;
11827 *rdev = wiphy_to_rdev(wiphy);
11831 list_for_each_entry(tmp, &wiphy->wdev_list, list) {
11832 if (tmp->identifier == cb->args[1] - 1) {
11839 /* keep rtnl locked in successful case */
11843 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, attrbuf,
11844 nl80211_fam.maxattr, nl80211_policy, NULL);
11848 if (!attrbuf[NL80211_ATTR_VENDOR_ID] ||
11849 !attrbuf[NL80211_ATTR_VENDOR_SUBCMD])
11852 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), attrbuf);
11856 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), attrbuf);
11858 return PTR_ERR(*rdev);
11860 vid = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_ID]);
11861 subcmd = nla_get_u32(attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
11863 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
11864 const struct wiphy_vendor_command *vcmd;
11866 vcmd = &(*rdev)->wiphy.vendor_commands[i];
11868 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
11872 return -EOPNOTSUPP;
11879 return -EOPNOTSUPP;
11881 if (attrbuf[NL80211_ATTR_VENDOR_DATA]) {
11882 data = nla_data(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11883 data_len = nla_len(attrbuf[NL80211_ATTR_VENDOR_DATA]);
11886 /* 0 is the first index - add 1 to parse only once */
11887 cb->args[0] = (*rdev)->wiphy_idx + 1;
11888 /* add 1 to know if it was NULL */
11889 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
11890 cb->args[2] = vcmd_idx;
11891 cb->args[3] = (unsigned long)data;
11892 cb->args[4] = data_len;
11894 /* keep rtnl locked in successful case */
11898 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
11899 struct netlink_callback *cb)
11901 struct cfg80211_registered_device *rdev;
11902 struct wireless_dev *wdev;
11903 unsigned int vcmd_idx;
11904 const struct wiphy_vendor_command *vcmd;
11908 struct nlattr *vendor_data;
11911 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
11915 vcmd_idx = cb->args[2];
11916 data = (void *)cb->args[3];
11917 data_len = cb->args[4];
11918 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
11920 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
11921 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
11926 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
11932 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
11933 if (!wdev_running(wdev)) {
11941 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
11942 cb->nlh->nlmsg_seq, NLM_F_MULTI,
11943 NL80211_CMD_VENDOR);
11947 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11948 (wdev && nla_put_u64_64bit(skb, NL80211_ATTR_WDEV,
11950 NL80211_ATTR_PAD))) {
11951 genlmsg_cancel(skb, hdr);
11955 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
11956 if (!vendor_data) {
11957 genlmsg_cancel(skb, hdr);
11961 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
11962 (unsigned long *)&cb->args[5]);
11963 nla_nest_end(skb, vendor_data);
11965 if (err == -ENOBUFS || err == -ENOENT) {
11966 genlmsg_cancel(skb, hdr);
11969 genlmsg_cancel(skb, hdr);
11973 genlmsg_end(skb, hdr);
11982 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
11983 enum nl80211_commands cmd,
11984 enum nl80211_attrs attr,
11987 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11989 if (WARN_ON(!rdev->cur_cmd_info))
11992 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
11993 rdev->cur_cmd_info->snd_portid,
11994 rdev->cur_cmd_info->snd_seq,
11995 cmd, attr, NULL, GFP_KERNEL);
11997 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
11999 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
12001 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
12002 void *hdr = ((void **)skb->cb)[1];
12003 struct nlattr *data = ((void **)skb->cb)[2];
12005 /* clear CB data for netlink core to own from now on */
12006 memset(skb->cb, 0, sizeof(skb->cb));
12008 if (WARN_ON(!rdev->cur_cmd_info)) {
12013 nla_nest_end(skb, data);
12014 genlmsg_end(skb, hdr);
12015 return genlmsg_reply(skb, rdev->cur_cmd_info);
12017 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
12019 static int nl80211_set_qos_map(struct sk_buff *skb,
12020 struct genl_info *info)
12022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12023 struct cfg80211_qos_map *qos_map = NULL;
12024 struct net_device *dev = info->user_ptr[1];
12025 u8 *pos, len, num_des, des_len, des;
12028 if (!rdev->ops->set_qos_map)
12029 return -EOPNOTSUPP;
12031 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
12032 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
12033 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
12035 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
12036 len > IEEE80211_QOS_MAP_LEN_MAX)
12039 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
12043 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
12045 des_len = num_des *
12046 sizeof(struct cfg80211_dscp_exception);
12047 memcpy(qos_map->dscp_exception, pos, des_len);
12048 qos_map->num_des = num_des;
12049 for (des = 0; des < num_des; des++) {
12050 if (qos_map->dscp_exception[des].up > 7) {
12057 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
12060 wdev_lock(dev->ieee80211_ptr);
12061 ret = nl80211_key_allowed(dev->ieee80211_ptr);
12063 ret = rdev_set_qos_map(rdev, dev, qos_map);
12064 wdev_unlock(dev->ieee80211_ptr);
12070 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
12072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12073 struct net_device *dev = info->user_ptr[1];
12074 struct wireless_dev *wdev = dev->ieee80211_ptr;
12077 u16 admitted_time = 0;
12080 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
12081 return -EOPNOTSUPP;
12083 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
12084 !info->attrs[NL80211_ATTR_USER_PRIO])
12087 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12088 if (tsid >= IEEE80211_NUM_TIDS)
12091 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
12092 if (up >= IEEE80211_NUM_UPS)
12095 /* WMM uses TIDs 0-7 even for TSPEC */
12096 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
12097 /* TODO: handle 802.11 TSPEC/admission control
12098 * need more attributes for that (e.g. BA session requirement);
12099 * change the WMM adminssion test above to allow both then
12104 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12106 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
12108 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
12109 if (!admitted_time)
12114 switch (wdev->iftype) {
12115 case NL80211_IFTYPE_STATION:
12116 case NL80211_IFTYPE_P2P_CLIENT:
12117 if (wdev->current_bss)
12126 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
12133 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
12135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12136 struct net_device *dev = info->user_ptr[1];
12137 struct wireless_dev *wdev = dev->ieee80211_ptr;
12142 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
12145 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
12146 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
12149 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
12155 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
12156 struct genl_info *info)
12158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12159 struct net_device *dev = info->user_ptr[1];
12160 struct wireless_dev *wdev = dev->ieee80211_ptr;
12161 struct cfg80211_chan_def chandef = {};
12166 if (!rdev->ops->tdls_channel_switch ||
12167 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12168 return -EOPNOTSUPP;
12170 switch (dev->ieee80211_ptr->iftype) {
12171 case NL80211_IFTYPE_STATION:
12172 case NL80211_IFTYPE_P2P_CLIENT:
12175 return -EOPNOTSUPP;
12178 if (!info->attrs[NL80211_ATTR_MAC] ||
12179 !info->attrs[NL80211_ATTR_OPER_CLASS])
12182 err = nl80211_parse_chandef(rdev, info, &chandef);
12187 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
12188 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
12189 * specification is not defined for them.
12191 if (chandef.chan->band == NL80211_BAND_2GHZ &&
12192 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
12193 chandef.width != NL80211_CHAN_WIDTH_20)
12196 /* we will be active on the TDLS link */
12197 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
12201 /* don't allow switching to DFS channels */
12202 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
12205 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12206 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
12209 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
12215 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
12216 struct genl_info *info)
12218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12219 struct net_device *dev = info->user_ptr[1];
12220 struct wireless_dev *wdev = dev->ieee80211_ptr;
12223 if (!rdev->ops->tdls_channel_switch ||
12224 !rdev->ops->tdls_cancel_channel_switch ||
12225 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
12226 return -EOPNOTSUPP;
12228 switch (dev->ieee80211_ptr->iftype) {
12229 case NL80211_IFTYPE_STATION:
12230 case NL80211_IFTYPE_P2P_CLIENT:
12233 return -EOPNOTSUPP;
12236 if (!info->attrs[NL80211_ATTR_MAC])
12239 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
12242 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
12248 static int nl80211_set_multicast_to_unicast(struct sk_buff *skb,
12249 struct genl_info *info)
12251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12252 struct net_device *dev = info->user_ptr[1];
12253 struct wireless_dev *wdev = dev->ieee80211_ptr;
12254 const struct nlattr *nla;
12257 if (!rdev->ops->set_multicast_to_unicast)
12258 return -EOPNOTSUPP;
12260 if (wdev->iftype != NL80211_IFTYPE_AP &&
12261 wdev->iftype != NL80211_IFTYPE_P2P_GO)
12262 return -EOPNOTSUPP;
12264 nla = info->attrs[NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED];
12265 enabled = nla_get_flag(nla);
12267 return rdev_set_multicast_to_unicast(rdev, dev, enabled);
12270 static int nl80211_set_pmk(struct sk_buff *skb, struct genl_info *info)
12272 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12273 struct net_device *dev = info->user_ptr[1];
12274 struct wireless_dev *wdev = dev->ieee80211_ptr;
12275 struct cfg80211_pmk_conf pmk_conf = {};
12278 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12279 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12280 return -EOPNOTSUPP;
12282 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12283 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12284 return -EOPNOTSUPP;
12286 if (!info->attrs[NL80211_ATTR_MAC] || !info->attrs[NL80211_ATTR_PMK])
12290 if (!wdev->current_bss) {
12295 pmk_conf.aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12296 if (memcmp(pmk_conf.aa, wdev->current_bss->pub.bssid, ETH_ALEN)) {
12301 pmk_conf.pmk = nla_data(info->attrs[NL80211_ATTR_PMK]);
12302 pmk_conf.pmk_len = nla_len(info->attrs[NL80211_ATTR_PMK]);
12303 if (pmk_conf.pmk_len != WLAN_PMK_LEN &&
12304 pmk_conf.pmk_len != WLAN_PMK_LEN_SUITE_B_192) {
12309 if (info->attrs[NL80211_ATTR_PMKR0_NAME]) {
12310 int r0_name_len = nla_len(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12312 if (r0_name_len != WLAN_PMK_NAME_LEN) {
12317 pmk_conf.pmk_r0_name =
12318 nla_data(info->attrs[NL80211_ATTR_PMKR0_NAME]);
12321 ret = rdev_set_pmk(rdev, dev, &pmk_conf);
12327 static int nl80211_del_pmk(struct sk_buff *skb, struct genl_info *info)
12329 struct cfg80211_registered_device *rdev = info->user_ptr[0];
12330 struct net_device *dev = info->user_ptr[1];
12331 struct wireless_dev *wdev = dev->ieee80211_ptr;
12335 if (wdev->iftype != NL80211_IFTYPE_STATION &&
12336 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
12337 return -EOPNOTSUPP;
12339 if (!wiphy_ext_feature_isset(&rdev->wiphy,
12340 NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
12341 return -EOPNOTSUPP;
12343 if (!info->attrs[NL80211_ATTR_MAC])
12347 aa = nla_data(info->attrs[NL80211_ATTR_MAC]);
12348 ret = rdev_del_pmk(rdev, dev, aa);
12354 #define NL80211_FLAG_NEED_WIPHY 0x01
12355 #define NL80211_FLAG_NEED_NETDEV 0x02
12356 #define NL80211_FLAG_NEED_RTNL 0x04
12357 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
12358 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
12359 NL80211_FLAG_CHECK_NETDEV_UP)
12360 #define NL80211_FLAG_NEED_WDEV 0x10
12361 /* If a netdev is associated, it must be UP, P2P must be started */
12362 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
12363 NL80211_FLAG_CHECK_NETDEV_UP)
12364 #define NL80211_FLAG_CLEAR_SKB 0x20
12366 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
12367 struct genl_info *info)
12369 struct cfg80211_registered_device *rdev;
12370 struct wireless_dev *wdev;
12371 struct net_device *dev;
12372 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
12377 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
12378 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
12379 if (IS_ERR(rdev)) {
12382 return PTR_ERR(rdev);
12384 info->user_ptr[0] = rdev;
12385 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
12386 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12389 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
12391 if (IS_ERR(wdev)) {
12394 return PTR_ERR(wdev);
12397 dev = wdev->netdev;
12398 rdev = wiphy_to_rdev(wdev->wiphy);
12400 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
12407 info->user_ptr[1] = dev;
12409 info->user_ptr[1] = wdev;
12412 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
12413 !wdev_running(wdev)) {
12422 info->user_ptr[0] = rdev;
12428 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
12429 struct genl_info *info)
12431 if (info->user_ptr[1]) {
12432 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
12433 struct wireless_dev *wdev = info->user_ptr[1];
12436 dev_put(wdev->netdev);
12438 dev_put(info->user_ptr[1]);
12442 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
12445 /* If needed, clear the netlink message payload from the SKB
12446 * as it might contain key data that shouldn't stick around on
12447 * the heap after the SKB is freed. The netlink message header
12448 * is still needed for further processing, so leave it intact.
12450 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
12451 struct nlmsghdr *nlh = nlmsg_hdr(skb);
12453 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
12457 static const struct genl_ops nl80211_ops[] = {
12459 .cmd = NL80211_CMD_GET_WIPHY,
12460 .doit = nl80211_get_wiphy,
12461 .dumpit = nl80211_dump_wiphy,
12462 .done = nl80211_dump_wiphy_done,
12463 .policy = nl80211_policy,
12464 /* can be retrieved by unprivileged users */
12465 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12466 NL80211_FLAG_NEED_RTNL,
12469 .cmd = NL80211_CMD_SET_WIPHY,
12470 .doit = nl80211_set_wiphy,
12471 .policy = nl80211_policy,
12472 .flags = GENL_UNS_ADMIN_PERM,
12473 .internal_flags = NL80211_FLAG_NEED_RTNL,
12476 .cmd = NL80211_CMD_GET_INTERFACE,
12477 .doit = nl80211_get_interface,
12478 .dumpit = nl80211_dump_interface,
12479 .policy = nl80211_policy,
12480 /* can be retrieved by unprivileged users */
12481 .internal_flags = NL80211_FLAG_NEED_WDEV |
12482 NL80211_FLAG_NEED_RTNL,
12485 .cmd = NL80211_CMD_SET_INTERFACE,
12486 .doit = nl80211_set_interface,
12487 .policy = nl80211_policy,
12488 .flags = GENL_UNS_ADMIN_PERM,
12489 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12490 NL80211_FLAG_NEED_RTNL,
12493 .cmd = NL80211_CMD_NEW_INTERFACE,
12494 .doit = nl80211_new_interface,
12495 .policy = nl80211_policy,
12496 .flags = GENL_UNS_ADMIN_PERM,
12497 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12498 NL80211_FLAG_NEED_RTNL,
12501 .cmd = NL80211_CMD_DEL_INTERFACE,
12502 .doit = nl80211_del_interface,
12503 .policy = nl80211_policy,
12504 .flags = GENL_UNS_ADMIN_PERM,
12505 .internal_flags = NL80211_FLAG_NEED_WDEV |
12506 NL80211_FLAG_NEED_RTNL,
12509 .cmd = NL80211_CMD_GET_KEY,
12510 .doit = nl80211_get_key,
12511 .policy = nl80211_policy,
12512 .flags = GENL_UNS_ADMIN_PERM,
12513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12514 NL80211_FLAG_NEED_RTNL,
12517 .cmd = NL80211_CMD_SET_KEY,
12518 .doit = nl80211_set_key,
12519 .policy = nl80211_policy,
12520 .flags = GENL_UNS_ADMIN_PERM,
12521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12522 NL80211_FLAG_NEED_RTNL |
12523 NL80211_FLAG_CLEAR_SKB,
12526 .cmd = NL80211_CMD_NEW_KEY,
12527 .doit = nl80211_new_key,
12528 .policy = nl80211_policy,
12529 .flags = GENL_UNS_ADMIN_PERM,
12530 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12531 NL80211_FLAG_NEED_RTNL |
12532 NL80211_FLAG_CLEAR_SKB,
12535 .cmd = NL80211_CMD_DEL_KEY,
12536 .doit = nl80211_del_key,
12537 .policy = nl80211_policy,
12538 .flags = GENL_UNS_ADMIN_PERM,
12539 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12540 NL80211_FLAG_NEED_RTNL,
12543 .cmd = NL80211_CMD_SET_BEACON,
12544 .policy = nl80211_policy,
12545 .flags = GENL_UNS_ADMIN_PERM,
12546 .doit = nl80211_set_beacon,
12547 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12548 NL80211_FLAG_NEED_RTNL,
12551 .cmd = NL80211_CMD_START_AP,
12552 .policy = nl80211_policy,
12553 .flags = GENL_UNS_ADMIN_PERM,
12554 .doit = nl80211_start_ap,
12555 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12556 NL80211_FLAG_NEED_RTNL,
12559 .cmd = NL80211_CMD_STOP_AP,
12560 .policy = nl80211_policy,
12561 .flags = GENL_UNS_ADMIN_PERM,
12562 .doit = nl80211_stop_ap,
12563 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12564 NL80211_FLAG_NEED_RTNL,
12567 .cmd = NL80211_CMD_GET_STATION,
12568 .doit = nl80211_get_station,
12569 .dumpit = nl80211_dump_station,
12570 .policy = nl80211_policy,
12571 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12572 NL80211_FLAG_NEED_RTNL,
12575 .cmd = NL80211_CMD_SET_STATION,
12576 .doit = nl80211_set_station,
12577 .policy = nl80211_policy,
12578 .flags = GENL_UNS_ADMIN_PERM,
12579 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12580 NL80211_FLAG_NEED_RTNL,
12583 .cmd = NL80211_CMD_NEW_STATION,
12584 .doit = nl80211_new_station,
12585 .policy = nl80211_policy,
12586 .flags = GENL_UNS_ADMIN_PERM,
12587 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12588 NL80211_FLAG_NEED_RTNL,
12591 .cmd = NL80211_CMD_DEL_STATION,
12592 .doit = nl80211_del_station,
12593 .policy = nl80211_policy,
12594 .flags = GENL_UNS_ADMIN_PERM,
12595 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12596 NL80211_FLAG_NEED_RTNL,
12599 .cmd = NL80211_CMD_GET_MPATH,
12600 .doit = nl80211_get_mpath,
12601 .dumpit = nl80211_dump_mpath,
12602 .policy = nl80211_policy,
12603 .flags = GENL_UNS_ADMIN_PERM,
12604 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12605 NL80211_FLAG_NEED_RTNL,
12608 .cmd = NL80211_CMD_GET_MPP,
12609 .doit = nl80211_get_mpp,
12610 .dumpit = nl80211_dump_mpp,
12611 .policy = nl80211_policy,
12612 .flags = GENL_UNS_ADMIN_PERM,
12613 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12614 NL80211_FLAG_NEED_RTNL,
12617 .cmd = NL80211_CMD_SET_MPATH,
12618 .doit = nl80211_set_mpath,
12619 .policy = nl80211_policy,
12620 .flags = GENL_UNS_ADMIN_PERM,
12621 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12622 NL80211_FLAG_NEED_RTNL,
12625 .cmd = NL80211_CMD_NEW_MPATH,
12626 .doit = nl80211_new_mpath,
12627 .policy = nl80211_policy,
12628 .flags = GENL_UNS_ADMIN_PERM,
12629 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12630 NL80211_FLAG_NEED_RTNL,
12633 .cmd = NL80211_CMD_DEL_MPATH,
12634 .doit = nl80211_del_mpath,
12635 .policy = nl80211_policy,
12636 .flags = GENL_UNS_ADMIN_PERM,
12637 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12638 NL80211_FLAG_NEED_RTNL,
12641 .cmd = NL80211_CMD_SET_BSS,
12642 .doit = nl80211_set_bss,
12643 .policy = nl80211_policy,
12644 .flags = GENL_UNS_ADMIN_PERM,
12645 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12646 NL80211_FLAG_NEED_RTNL,
12649 .cmd = NL80211_CMD_GET_REG,
12650 .doit = nl80211_get_reg_do,
12651 .dumpit = nl80211_get_reg_dump,
12652 .policy = nl80211_policy,
12653 .internal_flags = NL80211_FLAG_NEED_RTNL,
12654 /* can be retrieved by unprivileged users */
12656 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
12658 .cmd = NL80211_CMD_SET_REG,
12659 .doit = nl80211_set_reg,
12660 .policy = nl80211_policy,
12661 .flags = GENL_ADMIN_PERM,
12662 .internal_flags = NL80211_FLAG_NEED_RTNL,
12666 .cmd = NL80211_CMD_REQ_SET_REG,
12667 .doit = nl80211_req_set_reg,
12668 .policy = nl80211_policy,
12669 .flags = GENL_ADMIN_PERM,
12672 .cmd = NL80211_CMD_GET_MESH_CONFIG,
12673 .doit = nl80211_get_mesh_config,
12674 .policy = nl80211_policy,
12675 /* can be retrieved by unprivileged users */
12676 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12677 NL80211_FLAG_NEED_RTNL,
12680 .cmd = NL80211_CMD_SET_MESH_CONFIG,
12681 .doit = nl80211_update_mesh_config,
12682 .policy = nl80211_policy,
12683 .flags = GENL_UNS_ADMIN_PERM,
12684 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12685 NL80211_FLAG_NEED_RTNL,
12688 .cmd = NL80211_CMD_TRIGGER_SCAN,
12689 .doit = nl80211_trigger_scan,
12690 .policy = nl80211_policy,
12691 .flags = GENL_UNS_ADMIN_PERM,
12692 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12693 NL80211_FLAG_NEED_RTNL,
12696 .cmd = NL80211_CMD_ABORT_SCAN,
12697 .doit = nl80211_abort_scan,
12698 .policy = nl80211_policy,
12699 .flags = GENL_UNS_ADMIN_PERM,
12700 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12701 NL80211_FLAG_NEED_RTNL,
12704 .cmd = NL80211_CMD_GET_SCAN,
12705 .policy = nl80211_policy,
12706 .dumpit = nl80211_dump_scan,
12709 .cmd = NL80211_CMD_START_SCHED_SCAN,
12710 .doit = nl80211_start_sched_scan,
12711 .policy = nl80211_policy,
12712 .flags = GENL_UNS_ADMIN_PERM,
12713 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12714 NL80211_FLAG_NEED_RTNL,
12717 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
12718 .doit = nl80211_stop_sched_scan,
12719 .policy = nl80211_policy,
12720 .flags = GENL_UNS_ADMIN_PERM,
12721 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12722 NL80211_FLAG_NEED_RTNL,
12725 .cmd = NL80211_CMD_AUTHENTICATE,
12726 .doit = nl80211_authenticate,
12727 .policy = nl80211_policy,
12728 .flags = GENL_UNS_ADMIN_PERM,
12729 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12730 NL80211_FLAG_NEED_RTNL |
12731 NL80211_FLAG_CLEAR_SKB,
12734 .cmd = NL80211_CMD_ASSOCIATE,
12735 .doit = nl80211_associate,
12736 .policy = nl80211_policy,
12737 .flags = GENL_UNS_ADMIN_PERM,
12738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12739 NL80211_FLAG_NEED_RTNL,
12742 .cmd = NL80211_CMD_DEAUTHENTICATE,
12743 .doit = nl80211_deauthenticate,
12744 .policy = nl80211_policy,
12745 .flags = GENL_UNS_ADMIN_PERM,
12746 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12747 NL80211_FLAG_NEED_RTNL,
12750 .cmd = NL80211_CMD_DISASSOCIATE,
12751 .doit = nl80211_disassociate,
12752 .policy = nl80211_policy,
12753 .flags = GENL_UNS_ADMIN_PERM,
12754 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12755 NL80211_FLAG_NEED_RTNL,
12758 .cmd = NL80211_CMD_JOIN_IBSS,
12759 .doit = nl80211_join_ibss,
12760 .policy = nl80211_policy,
12761 .flags = GENL_UNS_ADMIN_PERM,
12762 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12763 NL80211_FLAG_NEED_RTNL,
12766 .cmd = NL80211_CMD_LEAVE_IBSS,
12767 .doit = nl80211_leave_ibss,
12768 .policy = nl80211_policy,
12769 .flags = GENL_UNS_ADMIN_PERM,
12770 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12771 NL80211_FLAG_NEED_RTNL,
12773 #ifdef CONFIG_NL80211_TESTMODE
12775 .cmd = NL80211_CMD_TESTMODE,
12776 .doit = nl80211_testmode_do,
12777 .dumpit = nl80211_testmode_dump,
12778 .policy = nl80211_policy,
12779 .flags = GENL_UNS_ADMIN_PERM,
12780 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12781 NL80211_FLAG_NEED_RTNL,
12785 .cmd = NL80211_CMD_CONNECT,
12786 .doit = nl80211_connect,
12787 .policy = nl80211_policy,
12788 .flags = GENL_UNS_ADMIN_PERM,
12789 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12790 NL80211_FLAG_NEED_RTNL,
12793 .cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
12794 .doit = nl80211_update_connect_params,
12795 .policy = nl80211_policy,
12796 .flags = GENL_ADMIN_PERM,
12797 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12798 NL80211_FLAG_NEED_RTNL,
12801 .cmd = NL80211_CMD_DISCONNECT,
12802 .doit = nl80211_disconnect,
12803 .policy = nl80211_policy,
12804 .flags = GENL_UNS_ADMIN_PERM,
12805 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12806 NL80211_FLAG_NEED_RTNL,
12809 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
12810 .doit = nl80211_wiphy_netns,
12811 .policy = nl80211_policy,
12812 .flags = GENL_UNS_ADMIN_PERM,
12813 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12814 NL80211_FLAG_NEED_RTNL,
12817 .cmd = NL80211_CMD_GET_SURVEY,
12818 .policy = nl80211_policy,
12819 .dumpit = nl80211_dump_survey,
12822 .cmd = NL80211_CMD_SET_PMKSA,
12823 .doit = nl80211_setdel_pmksa,
12824 .policy = nl80211_policy,
12825 .flags = GENL_UNS_ADMIN_PERM,
12826 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12827 NL80211_FLAG_NEED_RTNL,
12830 .cmd = NL80211_CMD_DEL_PMKSA,
12831 .doit = nl80211_setdel_pmksa,
12832 .policy = nl80211_policy,
12833 .flags = GENL_UNS_ADMIN_PERM,
12834 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12835 NL80211_FLAG_NEED_RTNL,
12838 .cmd = NL80211_CMD_FLUSH_PMKSA,
12839 .doit = nl80211_flush_pmksa,
12840 .policy = nl80211_policy,
12841 .flags = GENL_UNS_ADMIN_PERM,
12842 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12843 NL80211_FLAG_NEED_RTNL,
12846 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
12847 .doit = nl80211_remain_on_channel,
12848 .policy = nl80211_policy,
12849 .flags = GENL_UNS_ADMIN_PERM,
12850 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12851 NL80211_FLAG_NEED_RTNL,
12854 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12855 .doit = nl80211_cancel_remain_on_channel,
12856 .policy = nl80211_policy,
12857 .flags = GENL_UNS_ADMIN_PERM,
12858 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12859 NL80211_FLAG_NEED_RTNL,
12862 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
12863 .doit = nl80211_set_tx_bitrate_mask,
12864 .policy = nl80211_policy,
12865 .flags = GENL_UNS_ADMIN_PERM,
12866 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12867 NL80211_FLAG_NEED_RTNL,
12870 .cmd = NL80211_CMD_REGISTER_FRAME,
12871 .doit = nl80211_register_mgmt,
12872 .policy = nl80211_policy,
12873 .flags = GENL_UNS_ADMIN_PERM,
12874 .internal_flags = NL80211_FLAG_NEED_WDEV |
12875 NL80211_FLAG_NEED_RTNL,
12878 .cmd = NL80211_CMD_FRAME,
12879 .doit = nl80211_tx_mgmt,
12880 .policy = nl80211_policy,
12881 .flags = GENL_UNS_ADMIN_PERM,
12882 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12883 NL80211_FLAG_NEED_RTNL,
12886 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
12887 .doit = nl80211_tx_mgmt_cancel_wait,
12888 .policy = nl80211_policy,
12889 .flags = GENL_UNS_ADMIN_PERM,
12890 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
12891 NL80211_FLAG_NEED_RTNL,
12894 .cmd = NL80211_CMD_SET_POWER_SAVE,
12895 .doit = nl80211_set_power_save,
12896 .policy = nl80211_policy,
12897 .flags = GENL_UNS_ADMIN_PERM,
12898 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12899 NL80211_FLAG_NEED_RTNL,
12902 .cmd = NL80211_CMD_GET_POWER_SAVE,
12903 .doit = nl80211_get_power_save,
12904 .policy = nl80211_policy,
12905 /* can be retrieved by unprivileged users */
12906 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12907 NL80211_FLAG_NEED_RTNL,
12910 .cmd = NL80211_CMD_SET_CQM,
12911 .doit = nl80211_set_cqm,
12912 .policy = nl80211_policy,
12913 .flags = GENL_UNS_ADMIN_PERM,
12914 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12915 NL80211_FLAG_NEED_RTNL,
12918 .cmd = NL80211_CMD_SET_CHANNEL,
12919 .doit = nl80211_set_channel,
12920 .policy = nl80211_policy,
12921 .flags = GENL_UNS_ADMIN_PERM,
12922 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12923 NL80211_FLAG_NEED_RTNL,
12926 .cmd = NL80211_CMD_SET_WDS_PEER,
12927 .doit = nl80211_set_wds_peer,
12928 .policy = nl80211_policy,
12929 .flags = GENL_UNS_ADMIN_PERM,
12930 .internal_flags = NL80211_FLAG_NEED_NETDEV |
12931 NL80211_FLAG_NEED_RTNL,
12934 .cmd = NL80211_CMD_JOIN_MESH,
12935 .doit = nl80211_join_mesh,
12936 .policy = nl80211_policy,
12937 .flags = GENL_UNS_ADMIN_PERM,
12938 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12939 NL80211_FLAG_NEED_RTNL,
12942 .cmd = NL80211_CMD_LEAVE_MESH,
12943 .doit = nl80211_leave_mesh,
12944 .policy = nl80211_policy,
12945 .flags = GENL_UNS_ADMIN_PERM,
12946 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12947 NL80211_FLAG_NEED_RTNL,
12950 .cmd = NL80211_CMD_JOIN_OCB,
12951 .doit = nl80211_join_ocb,
12952 .policy = nl80211_policy,
12953 .flags = GENL_UNS_ADMIN_PERM,
12954 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12955 NL80211_FLAG_NEED_RTNL,
12958 .cmd = NL80211_CMD_LEAVE_OCB,
12959 .doit = nl80211_leave_ocb,
12960 .policy = nl80211_policy,
12961 .flags = GENL_UNS_ADMIN_PERM,
12962 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12963 NL80211_FLAG_NEED_RTNL,
12967 .cmd = NL80211_CMD_GET_WOWLAN,
12968 .doit = nl80211_get_wowlan,
12969 .policy = nl80211_policy,
12970 /* can be retrieved by unprivileged users */
12971 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12972 NL80211_FLAG_NEED_RTNL,
12975 .cmd = NL80211_CMD_SET_WOWLAN,
12976 .doit = nl80211_set_wowlan,
12977 .policy = nl80211_policy,
12978 .flags = GENL_UNS_ADMIN_PERM,
12979 .internal_flags = NL80211_FLAG_NEED_WIPHY |
12980 NL80211_FLAG_NEED_RTNL,
12984 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
12985 .doit = nl80211_set_rekey_data,
12986 .policy = nl80211_policy,
12987 .flags = GENL_UNS_ADMIN_PERM,
12988 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12989 NL80211_FLAG_NEED_RTNL |
12990 NL80211_FLAG_CLEAR_SKB,
12993 .cmd = NL80211_CMD_TDLS_MGMT,
12994 .doit = nl80211_tdls_mgmt,
12995 .policy = nl80211_policy,
12996 .flags = GENL_UNS_ADMIN_PERM,
12997 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
12998 NL80211_FLAG_NEED_RTNL,
13001 .cmd = NL80211_CMD_TDLS_OPER,
13002 .doit = nl80211_tdls_oper,
13003 .policy = nl80211_policy,
13004 .flags = GENL_UNS_ADMIN_PERM,
13005 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13006 NL80211_FLAG_NEED_RTNL,
13009 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
13010 .doit = nl80211_register_unexpected_frame,
13011 .policy = nl80211_policy,
13012 .flags = GENL_UNS_ADMIN_PERM,
13013 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13014 NL80211_FLAG_NEED_RTNL,
13017 .cmd = NL80211_CMD_PROBE_CLIENT,
13018 .doit = nl80211_probe_client,
13019 .policy = nl80211_policy,
13020 .flags = GENL_UNS_ADMIN_PERM,
13021 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13022 NL80211_FLAG_NEED_RTNL,
13025 .cmd = NL80211_CMD_REGISTER_BEACONS,
13026 .doit = nl80211_register_beacons,
13027 .policy = nl80211_policy,
13028 .flags = GENL_UNS_ADMIN_PERM,
13029 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13030 NL80211_FLAG_NEED_RTNL,
13033 .cmd = NL80211_CMD_SET_NOACK_MAP,
13034 .doit = nl80211_set_noack_map,
13035 .policy = nl80211_policy,
13036 .flags = GENL_UNS_ADMIN_PERM,
13037 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13038 NL80211_FLAG_NEED_RTNL,
13041 .cmd = NL80211_CMD_START_P2P_DEVICE,
13042 .doit = nl80211_start_p2p_device,
13043 .policy = nl80211_policy,
13044 .flags = GENL_UNS_ADMIN_PERM,
13045 .internal_flags = NL80211_FLAG_NEED_WDEV |
13046 NL80211_FLAG_NEED_RTNL,
13049 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
13050 .doit = nl80211_stop_p2p_device,
13051 .policy = nl80211_policy,
13052 .flags = GENL_UNS_ADMIN_PERM,
13053 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13054 NL80211_FLAG_NEED_RTNL,
13057 .cmd = NL80211_CMD_START_NAN,
13058 .doit = nl80211_start_nan,
13059 .policy = nl80211_policy,
13060 .flags = GENL_ADMIN_PERM,
13061 .internal_flags = NL80211_FLAG_NEED_WDEV |
13062 NL80211_FLAG_NEED_RTNL,
13065 .cmd = NL80211_CMD_STOP_NAN,
13066 .doit = nl80211_stop_nan,
13067 .policy = nl80211_policy,
13068 .flags = GENL_ADMIN_PERM,
13069 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13070 NL80211_FLAG_NEED_RTNL,
13073 .cmd = NL80211_CMD_ADD_NAN_FUNCTION,
13074 .doit = nl80211_nan_add_func,
13075 .policy = nl80211_policy,
13076 .flags = GENL_ADMIN_PERM,
13077 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13078 NL80211_FLAG_NEED_RTNL,
13081 .cmd = NL80211_CMD_DEL_NAN_FUNCTION,
13082 .doit = nl80211_nan_del_func,
13083 .policy = nl80211_policy,
13084 .flags = GENL_ADMIN_PERM,
13085 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13086 NL80211_FLAG_NEED_RTNL,
13089 .cmd = NL80211_CMD_CHANGE_NAN_CONFIG,
13090 .doit = nl80211_nan_change_config,
13091 .policy = nl80211_policy,
13092 .flags = GENL_ADMIN_PERM,
13093 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13094 NL80211_FLAG_NEED_RTNL,
13097 .cmd = NL80211_CMD_SET_MCAST_RATE,
13098 .doit = nl80211_set_mcast_rate,
13099 .policy = nl80211_policy,
13100 .flags = GENL_UNS_ADMIN_PERM,
13101 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13102 NL80211_FLAG_NEED_RTNL,
13105 .cmd = NL80211_CMD_SET_MAC_ACL,
13106 .doit = nl80211_set_mac_acl,
13107 .policy = nl80211_policy,
13108 .flags = GENL_UNS_ADMIN_PERM,
13109 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13110 NL80211_FLAG_NEED_RTNL,
13113 .cmd = NL80211_CMD_RADAR_DETECT,
13114 .doit = nl80211_start_radar_detection,
13115 .policy = nl80211_policy,
13116 .flags = GENL_UNS_ADMIN_PERM,
13117 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13118 NL80211_FLAG_NEED_RTNL,
13121 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
13122 .doit = nl80211_get_protocol_features,
13123 .policy = nl80211_policy,
13126 .cmd = NL80211_CMD_UPDATE_FT_IES,
13127 .doit = nl80211_update_ft_ies,
13128 .policy = nl80211_policy,
13129 .flags = GENL_UNS_ADMIN_PERM,
13130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13131 NL80211_FLAG_NEED_RTNL,
13134 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
13135 .doit = nl80211_crit_protocol_start,
13136 .policy = nl80211_policy,
13137 .flags = GENL_UNS_ADMIN_PERM,
13138 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13139 NL80211_FLAG_NEED_RTNL,
13142 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
13143 .doit = nl80211_crit_protocol_stop,
13144 .policy = nl80211_policy,
13145 .flags = GENL_UNS_ADMIN_PERM,
13146 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
13147 NL80211_FLAG_NEED_RTNL,
13150 .cmd = NL80211_CMD_GET_COALESCE,
13151 .doit = nl80211_get_coalesce,
13152 .policy = nl80211_policy,
13153 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13154 NL80211_FLAG_NEED_RTNL,
13157 .cmd = NL80211_CMD_SET_COALESCE,
13158 .doit = nl80211_set_coalesce,
13159 .policy = nl80211_policy,
13160 .flags = GENL_UNS_ADMIN_PERM,
13161 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13162 NL80211_FLAG_NEED_RTNL,
13165 .cmd = NL80211_CMD_CHANNEL_SWITCH,
13166 .doit = nl80211_channel_switch,
13167 .policy = nl80211_policy,
13168 .flags = GENL_UNS_ADMIN_PERM,
13169 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13170 NL80211_FLAG_NEED_RTNL,
13173 .cmd = NL80211_CMD_VENDOR,
13174 .doit = nl80211_vendor_cmd,
13175 .dumpit = nl80211_vendor_cmd_dump,
13176 .policy = nl80211_policy,
13177 .flags = GENL_UNS_ADMIN_PERM,
13178 .internal_flags = NL80211_FLAG_NEED_WIPHY |
13179 NL80211_FLAG_NEED_RTNL,
13182 .cmd = NL80211_CMD_SET_QOS_MAP,
13183 .doit = nl80211_set_qos_map,
13184 .policy = nl80211_policy,
13185 .flags = GENL_UNS_ADMIN_PERM,
13186 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13187 NL80211_FLAG_NEED_RTNL,
13190 .cmd = NL80211_CMD_ADD_TX_TS,
13191 .doit = nl80211_add_tx_ts,
13192 .policy = nl80211_policy,
13193 .flags = GENL_UNS_ADMIN_PERM,
13194 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13195 NL80211_FLAG_NEED_RTNL,
13198 .cmd = NL80211_CMD_DEL_TX_TS,
13199 .doit = nl80211_del_tx_ts,
13200 .policy = nl80211_policy,
13201 .flags = GENL_UNS_ADMIN_PERM,
13202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13203 NL80211_FLAG_NEED_RTNL,
13206 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
13207 .doit = nl80211_tdls_channel_switch,
13208 .policy = nl80211_policy,
13209 .flags = GENL_UNS_ADMIN_PERM,
13210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13211 NL80211_FLAG_NEED_RTNL,
13214 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
13215 .doit = nl80211_tdls_cancel_channel_switch,
13216 .policy = nl80211_policy,
13217 .flags = GENL_UNS_ADMIN_PERM,
13218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13219 NL80211_FLAG_NEED_RTNL,
13222 .cmd = NL80211_CMD_SET_MULTICAST_TO_UNICAST,
13223 .doit = nl80211_set_multicast_to_unicast,
13224 .policy = nl80211_policy,
13225 .flags = GENL_UNS_ADMIN_PERM,
13226 .internal_flags = NL80211_FLAG_NEED_NETDEV |
13227 NL80211_FLAG_NEED_RTNL,
13230 .cmd = NL80211_CMD_SET_PMK,
13231 .doit = nl80211_set_pmk,
13232 .policy = nl80211_policy,
13233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13234 NL80211_FLAG_NEED_RTNL,
13237 .cmd = NL80211_CMD_DEL_PMK,
13238 .doit = nl80211_del_pmk,
13239 .policy = nl80211_policy,
13240 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
13241 NL80211_FLAG_NEED_RTNL,
13246 static struct genl_family nl80211_fam __ro_after_init = {
13247 .name = NL80211_GENL_NAME, /* have users key off the name instead */
13248 .hdrsize = 0, /* no private header */
13249 .version = 1, /* no particular meaning now */
13250 .maxattr = NL80211_ATTR_MAX,
13252 .pre_doit = nl80211_pre_doit,
13253 .post_doit = nl80211_post_doit,
13254 .module = THIS_MODULE,
13255 .ops = nl80211_ops,
13256 .n_ops = ARRAY_SIZE(nl80211_ops),
13257 .mcgrps = nl80211_mcgrps,
13258 .n_mcgrps = ARRAY_SIZE(nl80211_mcgrps),
13261 /* notification functions */
13263 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
13264 enum nl80211_commands cmd)
13266 struct sk_buff *msg;
13267 struct nl80211_dump_wiphy_state state = {};
13269 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
13270 cmd != NL80211_CMD_DEL_WIPHY);
13272 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13276 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
13281 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13282 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13285 void nl80211_notify_iface(struct cfg80211_registered_device *rdev,
13286 struct wireless_dev *wdev,
13287 enum nl80211_commands cmd)
13289 struct sk_buff *msg;
13291 WARN_ON(cmd != NL80211_CMD_NEW_INTERFACE &&
13292 cmd != NL80211_CMD_DEL_INTERFACE);
13294 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13298 if (nl80211_send_iface(msg, 0, 0, 0, rdev, wdev,
13299 cmd == NL80211_CMD_DEL_INTERFACE) < 0) {
13304 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13305 NL80211_MCGRP_CONFIG, GFP_KERNEL);
13308 static int nl80211_add_scan_req(struct sk_buff *msg,
13309 struct cfg80211_registered_device *rdev)
13311 struct cfg80211_scan_request *req = rdev->scan_req;
13312 struct nlattr *nest;
13318 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
13320 goto nla_put_failure;
13321 for (i = 0; i < req->n_ssids; i++) {
13322 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
13323 goto nla_put_failure;
13325 nla_nest_end(msg, nest);
13327 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
13329 goto nla_put_failure;
13330 for (i = 0; i < req->n_channels; i++) {
13331 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
13332 goto nla_put_failure;
13334 nla_nest_end(msg, nest);
13337 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
13338 goto nla_put_failure;
13341 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
13342 goto nla_put_failure;
13344 if (req->info.scan_start_tsf &&
13345 (nla_put_u64_64bit(msg, NL80211_ATTR_SCAN_START_TIME_TSF,
13346 req->info.scan_start_tsf, NL80211_BSS_PAD) ||
13347 nla_put(msg, NL80211_ATTR_SCAN_START_TIME_TSF_BSSID, ETH_ALEN,
13348 req->info.tsf_bssid)))
13349 goto nla_put_failure;
13356 static int nl80211_prep_scan_msg(struct sk_buff *msg,
13357 struct cfg80211_registered_device *rdev,
13358 struct wireless_dev *wdev,
13359 u32 portid, u32 seq, int flags,
13364 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
13368 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13369 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13370 wdev->netdev->ifindex)) ||
13371 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
13373 goto nla_put_failure;
13375 /* ignore errors and send incomplete event anyway */
13376 nl80211_add_scan_req(msg, rdev);
13378 genlmsg_end(msg, hdr);
13382 genlmsg_cancel(msg, hdr);
13387 nl80211_prep_sched_scan_msg(struct sk_buff *msg,
13388 struct cfg80211_sched_scan_request *req, u32 cmd)
13392 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13396 if (nla_put_u32(msg, NL80211_ATTR_WIPHY,
13397 wiphy_to_rdev(req->wiphy)->wiphy_idx) ||
13398 nla_put_u32(msg, NL80211_ATTR_IFINDEX, req->dev->ifindex) ||
13399 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, req->reqid,
13401 goto nla_put_failure;
13403 genlmsg_end(msg, hdr);
13407 genlmsg_cancel(msg, hdr);
13411 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
13412 struct wireless_dev *wdev)
13414 struct sk_buff *msg;
13416 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13420 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
13421 NL80211_CMD_TRIGGER_SCAN) < 0) {
13426 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13427 NL80211_MCGRP_SCAN, GFP_KERNEL);
13430 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
13431 struct wireless_dev *wdev, bool aborted)
13433 struct sk_buff *msg;
13435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13439 if (nl80211_prep_scan_msg(msg, rdev, wdev, 0, 0, 0,
13440 aborted ? NL80211_CMD_SCAN_ABORTED :
13441 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
13449 /* send message created by nl80211_build_scan_msg() */
13450 void nl80211_send_scan_msg(struct cfg80211_registered_device *rdev,
13451 struct sk_buff *msg)
13456 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13457 NL80211_MCGRP_SCAN, GFP_KERNEL);
13460 void nl80211_send_sched_scan(struct cfg80211_sched_scan_request *req, u32 cmd)
13462 struct sk_buff *msg;
13464 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13468 if (nl80211_prep_sched_scan_msg(msg, req, cmd) < 0) {
13473 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(req->wiphy), msg, 0,
13474 NL80211_MCGRP_SCAN, GFP_KERNEL);
13477 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
13478 struct regulatory_request *request)
13480 /* Userspace can always count this one always being set */
13481 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
13482 goto nla_put_failure;
13484 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
13485 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13486 NL80211_REGDOM_TYPE_WORLD))
13487 goto nla_put_failure;
13488 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
13489 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13490 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
13491 goto nla_put_failure;
13492 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
13493 request->intersect) {
13494 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13495 NL80211_REGDOM_TYPE_INTERSECTION))
13496 goto nla_put_failure;
13498 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
13499 NL80211_REGDOM_TYPE_COUNTRY) ||
13500 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
13502 goto nla_put_failure;
13505 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
13506 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
13509 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
13510 goto nla_put_failure;
13513 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
13514 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
13515 goto nla_put_failure;
13525 * This can happen on global regulatory changes or device specific settings
13526 * based on custom regulatory domains.
13528 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
13529 struct regulatory_request *request)
13531 struct sk_buff *msg;
13534 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13538 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
13544 if (nl80211_reg_change_event_fill(msg, request) == false)
13545 goto nla_put_failure;
13547 genlmsg_end(msg, hdr);
13550 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
13551 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
13557 genlmsg_cancel(msg, hdr);
13561 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
13562 struct net_device *netdev,
13563 const u8 *buf, size_t len,
13564 enum nl80211_commands cmd, gfp_t gfp,
13567 struct sk_buff *msg;
13570 msg = nlmsg_new(100 + len, gfp);
13574 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13580 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13581 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13582 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
13583 goto nla_put_failure;
13585 if (uapsd_queues >= 0) {
13586 struct nlattr *nla_wmm =
13587 nla_nest_start(msg, NL80211_ATTR_STA_WME);
13589 goto nla_put_failure;
13591 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
13593 goto nla_put_failure;
13595 nla_nest_end(msg, nla_wmm);
13598 genlmsg_end(msg, hdr);
13600 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13601 NL80211_MCGRP_MLME, gfp);
13605 genlmsg_cancel(msg, hdr);
13609 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
13610 struct net_device *netdev, const u8 *buf,
13611 size_t len, gfp_t gfp)
13613 nl80211_send_mlme_event(rdev, netdev, buf, len,
13614 NL80211_CMD_AUTHENTICATE, gfp, -1);
13617 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
13618 struct net_device *netdev, const u8 *buf,
13619 size_t len, gfp_t gfp, int uapsd_queues)
13621 nl80211_send_mlme_event(rdev, netdev, buf, len,
13622 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
13625 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
13626 struct net_device *netdev, const u8 *buf,
13627 size_t len, gfp_t gfp)
13629 nl80211_send_mlme_event(rdev, netdev, buf, len,
13630 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
13633 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
13634 struct net_device *netdev, const u8 *buf,
13635 size_t len, gfp_t gfp)
13637 nl80211_send_mlme_event(rdev, netdev, buf, len,
13638 NL80211_CMD_DISASSOCIATE, gfp, -1);
13641 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
13644 struct wireless_dev *wdev = dev->ieee80211_ptr;
13645 struct wiphy *wiphy = wdev->wiphy;
13646 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13647 const struct ieee80211_mgmt *mgmt = (void *)buf;
13650 if (WARN_ON(len < 2))
13653 if (ieee80211_is_deauth(mgmt->frame_control))
13654 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
13656 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
13658 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
13659 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
13661 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
13663 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
13664 struct net_device *netdev, int cmd,
13665 const u8 *addr, gfp_t gfp)
13667 struct sk_buff *msg;
13670 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13674 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
13680 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13681 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13682 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13683 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
13684 goto nla_put_failure;
13686 genlmsg_end(msg, hdr);
13688 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13689 NL80211_MCGRP_MLME, gfp);
13693 genlmsg_cancel(msg, hdr);
13697 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
13698 struct net_device *netdev, const u8 *addr,
13701 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
13705 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
13706 struct net_device *netdev, const u8 *addr,
13709 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
13713 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
13714 struct net_device *netdev,
13715 struct cfg80211_connect_resp_params *cr,
13718 struct sk_buff *msg;
13721 msg = nlmsg_new(100 + cr->req_ie_len + cr->resp_ie_len +
13722 cr->fils_kek_len + cr->pmk_len +
13723 (cr->pmkid ? WLAN_PMKID_LEN : 0), gfp);
13727 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
13733 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13734 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13736 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, cr->bssid)) ||
13737 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE,
13738 cr->status < 0 ? WLAN_STATUS_UNSPECIFIED_FAILURE :
13741 (nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
13742 nla_put_u32(msg, NL80211_ATTR_TIMEOUT_REASON,
13743 cr->timeout_reason))) ||
13745 nla_put(msg, NL80211_ATTR_REQ_IE, cr->req_ie_len, cr->req_ie)) ||
13747 nla_put(msg, NL80211_ATTR_RESP_IE, cr->resp_ie_len,
13749 (cr->update_erp_next_seq_num &&
13750 nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
13751 cr->fils_erp_next_seq_num)) ||
13752 (cr->status == WLAN_STATUS_SUCCESS &&
13754 nla_put(msg, NL80211_ATTR_FILS_KEK, cr->fils_kek_len,
13757 nla_put(msg, NL80211_ATTR_PMK, cr->pmk_len, cr->pmk)) ||
13759 nla_put(msg, NL80211_ATTR_PMKID, WLAN_PMKID_LEN, cr->pmkid)))))
13760 goto nla_put_failure;
13762 genlmsg_end(msg, hdr);
13764 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13765 NL80211_MCGRP_MLME, gfp);
13769 genlmsg_cancel(msg, hdr);
13773 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
13774 struct net_device *netdev,
13775 struct cfg80211_roam_info *info, gfp_t gfp)
13777 struct sk_buff *msg;
13779 const u8 *bssid = info->bss ? info->bss->bssid : info->bssid;
13781 msg = nlmsg_new(100 + info->req_ie_len + info->resp_ie_len, gfp);
13785 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
13791 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13792 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13793 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
13795 nla_put(msg, NL80211_ATTR_REQ_IE, info->req_ie_len,
13798 nla_put(msg, NL80211_ATTR_RESP_IE, info->resp_ie_len,
13800 (info->authorized &&
13801 nla_put_flag(msg, NL80211_ATTR_PORT_AUTHORIZED)))
13802 goto nla_put_failure;
13804 genlmsg_end(msg, hdr);
13806 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13807 NL80211_MCGRP_MLME, gfp);
13811 genlmsg_cancel(msg, hdr);
13815 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
13816 struct net_device *netdev, u16 reason,
13817 const u8 *ie, size_t ie_len, bool from_ap)
13819 struct sk_buff *msg;
13822 msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
13826 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
13832 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13833 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13834 (from_ap && reason &&
13835 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
13837 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
13838 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
13839 goto nla_put_failure;
13841 genlmsg_end(msg, hdr);
13843 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13844 NL80211_MCGRP_MLME, GFP_KERNEL);
13848 genlmsg_cancel(msg, hdr);
13852 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
13853 struct net_device *netdev, const u8 *bssid,
13856 struct sk_buff *msg;
13859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13863 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
13869 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13870 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13871 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
13872 goto nla_put_failure;
13874 genlmsg_end(msg, hdr);
13876 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13877 NL80211_MCGRP_MLME, gfp);
13881 genlmsg_cancel(msg, hdr);
13885 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
13886 const u8* ie, u8 ie_len, gfp_t gfp)
13888 struct wireless_dev *wdev = dev->ieee80211_ptr;
13889 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13890 struct sk_buff *msg;
13893 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
13896 trace_cfg80211_notify_new_peer_candidate(dev, addr);
13898 msg = nlmsg_new(100 + ie_len, gfp);
13902 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
13908 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13909 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13910 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
13912 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
13913 goto nla_put_failure;
13915 genlmsg_end(msg, hdr);
13917 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13918 NL80211_MCGRP_MLME, gfp);
13922 genlmsg_cancel(msg, hdr);
13925 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
13927 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
13928 struct net_device *netdev, const u8 *addr,
13929 enum nl80211_key_type key_type, int key_id,
13930 const u8 *tsc, gfp_t gfp)
13932 struct sk_buff *msg;
13935 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13939 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
13945 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13946 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13947 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
13948 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
13950 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
13951 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
13952 goto nla_put_failure;
13954 genlmsg_end(msg, hdr);
13956 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13957 NL80211_MCGRP_MLME, gfp);
13961 genlmsg_cancel(msg, hdr);
13965 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
13966 struct ieee80211_channel *channel_before,
13967 struct ieee80211_channel *channel_after)
13969 struct sk_buff *msg;
13971 struct nlattr *nl_freq;
13973 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
13977 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
13984 * Since we are applying the beacon hint to a wiphy we know its
13985 * wiphy_idx is valid
13987 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
13988 goto nla_put_failure;
13991 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
13993 goto nla_put_failure;
13994 if (nl80211_msg_put_channel(msg, channel_before, false))
13995 goto nla_put_failure;
13996 nla_nest_end(msg, nl_freq);
13999 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
14001 goto nla_put_failure;
14002 if (nl80211_msg_put_channel(msg, channel_after, false))
14003 goto nla_put_failure;
14004 nla_nest_end(msg, nl_freq);
14006 genlmsg_end(msg, hdr);
14009 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
14010 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
14016 genlmsg_cancel(msg, hdr);
14020 static void nl80211_send_remain_on_chan_event(
14021 int cmd, struct cfg80211_registered_device *rdev,
14022 struct wireless_dev *wdev, u64 cookie,
14023 struct ieee80211_channel *chan,
14024 unsigned int duration, gfp_t gfp)
14026 struct sk_buff *msg;
14029 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14033 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14039 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14040 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14041 wdev->netdev->ifindex)) ||
14042 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14043 NL80211_ATTR_PAD) ||
14044 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
14045 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
14046 NL80211_CHAN_NO_HT) ||
14047 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14049 goto nla_put_failure;
14051 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
14052 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
14053 goto nla_put_failure;
14055 genlmsg_end(msg, hdr);
14057 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14058 NL80211_MCGRP_MLME, gfp);
14062 genlmsg_cancel(msg, hdr);
14066 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
14067 struct ieee80211_channel *chan,
14068 unsigned int duration, gfp_t gfp)
14070 struct wiphy *wiphy = wdev->wiphy;
14071 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14073 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
14074 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
14075 rdev, wdev, cookie, chan,
14078 EXPORT_SYMBOL(cfg80211_ready_on_channel);
14080 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
14081 struct ieee80211_channel *chan,
14084 struct wiphy *wiphy = wdev->wiphy;
14085 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14087 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
14088 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
14089 rdev, wdev, cookie, chan, 0, gfp);
14091 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
14093 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
14094 struct station_info *sinfo, gfp_t gfp)
14096 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14097 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14098 struct sk_buff *msg;
14100 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
14102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14106 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
14107 rdev, dev, mac_addr, sinfo) < 0) {
14112 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14113 NL80211_MCGRP_MLME, gfp);
14115 EXPORT_SYMBOL(cfg80211_new_sta);
14117 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
14118 struct station_info *sinfo, gfp_t gfp)
14120 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14121 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14122 struct sk_buff *msg;
14123 struct station_info empty_sinfo = {};
14126 sinfo = &empty_sinfo;
14128 trace_cfg80211_del_sta(dev, mac_addr);
14130 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14134 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
14135 rdev, dev, mac_addr, sinfo) < 0) {
14140 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14141 NL80211_MCGRP_MLME, gfp);
14143 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
14145 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
14146 enum nl80211_connect_failed_reason reason,
14149 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
14150 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14151 struct sk_buff *msg;
14154 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
14158 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
14164 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14165 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
14166 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
14167 goto nla_put_failure;
14169 genlmsg_end(msg, hdr);
14171 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14172 NL80211_MCGRP_MLME, gfp);
14176 genlmsg_cancel(msg, hdr);
14179 EXPORT_SYMBOL(cfg80211_conn_failed);
14181 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
14182 const u8 *addr, gfp_t gfp)
14184 struct wireless_dev *wdev = dev->ieee80211_ptr;
14185 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14186 struct sk_buff *msg;
14188 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
14193 msg = nlmsg_new(100, gfp);
14197 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
14203 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14204 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14205 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
14206 goto nla_put_failure;
14208 genlmsg_end(msg, hdr);
14209 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14213 genlmsg_cancel(msg, hdr);
14218 bool cfg80211_rx_spurious_frame(struct net_device *dev,
14219 const u8 *addr, gfp_t gfp)
14221 struct wireless_dev *wdev = dev->ieee80211_ptr;
14224 trace_cfg80211_rx_spurious_frame(dev, addr);
14226 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14227 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
14228 trace_cfg80211_return_bool(false);
14231 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
14233 trace_cfg80211_return_bool(ret);
14236 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
14238 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
14239 const u8 *addr, gfp_t gfp)
14241 struct wireless_dev *wdev = dev->ieee80211_ptr;
14244 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
14246 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
14247 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
14248 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
14249 trace_cfg80211_return_bool(false);
14252 ret = __nl80211_unexpected_frame(dev,
14253 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
14255 trace_cfg80211_return_bool(ret);
14258 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
14260 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
14261 struct wireless_dev *wdev, u32 nlportid,
14262 int freq, int sig_dbm,
14263 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
14265 struct net_device *netdev = wdev->netdev;
14266 struct sk_buff *msg;
14269 msg = nlmsg_new(100 + len, gfp);
14273 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14279 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14280 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14281 netdev->ifindex)) ||
14282 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14283 NL80211_ATTR_PAD) ||
14284 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
14286 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14287 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14289 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
14290 goto nla_put_failure;
14292 genlmsg_end(msg, hdr);
14294 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
14297 genlmsg_cancel(msg, hdr);
14302 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
14303 const u8 *buf, size_t len, bool ack, gfp_t gfp)
14305 struct wiphy *wiphy = wdev->wiphy;
14306 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14307 struct net_device *netdev = wdev->netdev;
14308 struct sk_buff *msg;
14311 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
14313 msg = nlmsg_new(100 + len, gfp);
14317 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
14323 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14324 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14325 netdev->ifindex)) ||
14326 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14327 NL80211_ATTR_PAD) ||
14328 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
14329 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14330 NL80211_ATTR_PAD) ||
14331 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
14332 goto nla_put_failure;
14334 genlmsg_end(msg, hdr);
14336 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14337 NL80211_MCGRP_MLME, gfp);
14341 genlmsg_cancel(msg, hdr);
14344 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
14346 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
14347 const char *mac, gfp_t gfp)
14349 struct wireless_dev *wdev = dev->ieee80211_ptr;
14350 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14351 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14357 cb = (void **)msg->cb;
14359 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
14365 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14366 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
14367 goto nla_put_failure;
14369 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
14370 goto nla_put_failure;
14372 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
14374 goto nla_put_failure;
14384 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
14386 void **cb = (void **)msg->cb;
14387 struct cfg80211_registered_device *rdev = cb[2];
14389 nla_nest_end(msg, cb[1]);
14390 genlmsg_end(msg, cb[0]);
14392 memset(msg->cb, 0, sizeof(msg->cb));
14394 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14395 NL80211_MCGRP_MLME, gfp);
14398 void cfg80211_cqm_rssi_notify(struct net_device *dev,
14399 enum nl80211_cqm_rssi_threshold_event rssi_event,
14400 s32 rssi_level, gfp_t gfp)
14402 struct sk_buff *msg;
14403 struct wireless_dev *wdev = dev->ieee80211_ptr;
14404 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14406 trace_cfg80211_cqm_rssi_notify(dev, rssi_event, rssi_level);
14408 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
14409 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
14412 if (wdev->cqm_config) {
14413 wdev->cqm_config->last_rssi_event_value = rssi_level;
14415 cfg80211_cqm_rssi_update(rdev, dev);
14417 if (rssi_level == 0)
14418 rssi_level = wdev->cqm_config->last_rssi_event_value;
14421 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14425 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
14427 goto nla_put_failure;
14429 if (rssi_level && nla_put_s32(msg, NL80211_ATTR_CQM_RSSI_LEVEL,
14431 goto nla_put_failure;
14433 cfg80211_send_cqm(msg, gfp);
14440 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
14442 void cfg80211_cqm_txe_notify(struct net_device *dev,
14443 const u8 *peer, u32 num_packets,
14444 u32 rate, u32 intvl, gfp_t gfp)
14446 struct sk_buff *msg;
14448 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14452 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
14453 goto nla_put_failure;
14455 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
14456 goto nla_put_failure;
14458 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
14459 goto nla_put_failure;
14461 cfg80211_send_cqm(msg, gfp);
14467 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
14469 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
14470 const u8 *peer, u32 num_packets, gfp_t gfp)
14472 struct sk_buff *msg;
14474 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
14476 msg = cfg80211_prepare_cqm(dev, peer, gfp);
14480 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
14481 goto nla_put_failure;
14483 cfg80211_send_cqm(msg, gfp);
14489 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
14491 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
14493 struct sk_buff *msg;
14495 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
14499 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
14500 goto nla_put_failure;
14502 cfg80211_send_cqm(msg, gfp);
14508 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
14510 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
14511 struct net_device *netdev, const u8 *bssid,
14512 const u8 *replay_ctr, gfp_t gfp)
14514 struct sk_buff *msg;
14515 struct nlattr *rekey_attr;
14518 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14522 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
14528 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14529 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14530 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
14531 goto nla_put_failure;
14533 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
14535 goto nla_put_failure;
14537 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
14538 NL80211_REPLAY_CTR_LEN, replay_ctr))
14539 goto nla_put_failure;
14541 nla_nest_end(msg, rekey_attr);
14543 genlmsg_end(msg, hdr);
14545 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14546 NL80211_MCGRP_MLME, gfp);
14550 genlmsg_cancel(msg, hdr);
14554 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
14555 const u8 *replay_ctr, gfp_t gfp)
14557 struct wireless_dev *wdev = dev->ieee80211_ptr;
14558 struct wiphy *wiphy = wdev->wiphy;
14559 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14561 trace_cfg80211_gtk_rekey_notify(dev, bssid);
14562 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
14564 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
14567 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
14568 struct net_device *netdev, int index,
14569 const u8 *bssid, bool preauth, gfp_t gfp)
14571 struct sk_buff *msg;
14572 struct nlattr *attr;
14575 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14579 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
14585 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14586 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14587 goto nla_put_failure;
14589 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
14591 goto nla_put_failure;
14593 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
14594 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
14596 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
14597 goto nla_put_failure;
14599 nla_nest_end(msg, attr);
14601 genlmsg_end(msg, hdr);
14603 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14604 NL80211_MCGRP_MLME, gfp);
14608 genlmsg_cancel(msg, hdr);
14612 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
14613 const u8 *bssid, bool preauth, gfp_t gfp)
14615 struct wireless_dev *wdev = dev->ieee80211_ptr;
14616 struct wiphy *wiphy = wdev->wiphy;
14617 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14619 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
14620 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
14622 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
14624 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
14625 struct net_device *netdev,
14626 struct cfg80211_chan_def *chandef,
14628 enum nl80211_commands notif,
14631 struct sk_buff *msg;
14634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14638 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
14644 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
14645 goto nla_put_failure;
14647 if (nl80211_send_chandef(msg, chandef))
14648 goto nla_put_failure;
14650 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
14651 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
14652 goto nla_put_failure;
14654 genlmsg_end(msg, hdr);
14656 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14657 NL80211_MCGRP_MLME, gfp);
14661 genlmsg_cancel(msg, hdr);
14665 void cfg80211_ch_switch_notify(struct net_device *dev,
14666 struct cfg80211_chan_def *chandef)
14668 struct wireless_dev *wdev = dev->ieee80211_ptr;
14669 struct wiphy *wiphy = wdev->wiphy;
14670 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14672 ASSERT_WDEV_LOCK(wdev);
14674 trace_cfg80211_ch_switch_notify(dev, chandef);
14676 wdev->chandef = *chandef;
14677 wdev->preset_chandef = *chandef;
14678 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14679 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
14681 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
14683 void cfg80211_ch_switch_started_notify(struct net_device *dev,
14684 struct cfg80211_chan_def *chandef,
14687 struct wireless_dev *wdev = dev->ieee80211_ptr;
14688 struct wiphy *wiphy = wdev->wiphy;
14689 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14691 trace_cfg80211_ch_switch_started_notify(dev, chandef);
14693 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
14694 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
14696 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
14699 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
14700 const struct cfg80211_chan_def *chandef,
14701 enum nl80211_radar_event event,
14702 struct net_device *netdev, gfp_t gfp)
14704 struct sk_buff *msg;
14707 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14711 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
14717 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
14718 goto nla_put_failure;
14720 /* NOP and radar events don't need a netdev parameter */
14722 struct wireless_dev *wdev = netdev->ieee80211_ptr;
14724 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
14725 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14727 goto nla_put_failure;
14730 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
14731 goto nla_put_failure;
14733 if (nl80211_send_chandef(msg, chandef))
14734 goto nla_put_failure;
14736 genlmsg_end(msg, hdr);
14738 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14739 NL80211_MCGRP_MLME, gfp);
14743 genlmsg_cancel(msg, hdr);
14747 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
14748 u64 cookie, bool acked, gfp_t gfp)
14750 struct wireless_dev *wdev = dev->ieee80211_ptr;
14751 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14752 struct sk_buff *msg;
14755 trace_cfg80211_probe_status(dev, addr, cookie, acked);
14757 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
14762 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
14768 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14769 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
14770 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
14771 nla_put_u64_64bit(msg, NL80211_ATTR_COOKIE, cookie,
14772 NL80211_ATTR_PAD) ||
14773 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
14774 goto nla_put_failure;
14776 genlmsg_end(msg, hdr);
14778 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14779 NL80211_MCGRP_MLME, gfp);
14783 genlmsg_cancel(msg, hdr);
14786 EXPORT_SYMBOL(cfg80211_probe_status);
14788 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
14789 const u8 *frame, size_t len,
14790 int freq, int sig_dbm)
14792 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
14793 struct sk_buff *msg;
14795 struct cfg80211_beacon_registration *reg;
14797 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
14799 spin_lock_bh(&rdev->beacon_registrations_lock);
14800 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
14801 msg = nlmsg_new(len + 100, GFP_ATOMIC);
14803 spin_unlock_bh(&rdev->beacon_registrations_lock);
14807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
14809 goto nla_put_failure;
14811 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14813 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
14815 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
14816 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
14817 goto nla_put_failure;
14819 genlmsg_end(msg, hdr);
14821 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
14823 spin_unlock_bh(&rdev->beacon_registrations_lock);
14827 spin_unlock_bh(&rdev->beacon_registrations_lock);
14829 genlmsg_cancel(msg, hdr);
14832 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
14835 static int cfg80211_net_detect_results(struct sk_buff *msg,
14836 struct cfg80211_wowlan_wakeup *wakeup)
14838 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
14839 struct nlattr *nl_results, *nl_match, *nl_freqs;
14842 nl_results = nla_nest_start(
14843 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
14847 for (i = 0; i < nd->n_matches; i++) {
14848 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
14850 nl_match = nla_nest_start(msg, i);
14854 /* The SSID attribute is optional in nl80211, but for
14855 * simplicity reasons it's always present in the
14856 * cfg80211 structure. If a driver can't pass the
14857 * SSID, that needs to be changed. A zero length SSID
14858 * is still a valid SSID (wildcard), so it cannot be
14859 * used for this purpose.
14861 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
14862 match->ssid.ssid)) {
14863 nla_nest_cancel(msg, nl_match);
14867 if (match->n_channels) {
14868 nl_freqs = nla_nest_start(
14869 msg, NL80211_ATTR_SCAN_FREQUENCIES);
14871 nla_nest_cancel(msg, nl_match);
14875 for (j = 0; j < match->n_channels; j++) {
14876 if (nla_put_u32(msg, j, match->channels[j])) {
14877 nla_nest_cancel(msg, nl_freqs);
14878 nla_nest_cancel(msg, nl_match);
14883 nla_nest_end(msg, nl_freqs);
14886 nla_nest_end(msg, nl_match);
14890 nla_nest_end(msg, nl_results);
14894 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
14895 struct cfg80211_wowlan_wakeup *wakeup,
14898 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
14899 struct sk_buff *msg;
14903 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
14906 size += wakeup->packet_present_len;
14908 msg = nlmsg_new(size, gfp);
14912 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
14916 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
14917 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
14921 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
14922 wdev->netdev->ifindex))
14926 struct nlattr *reasons;
14928 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
14932 if (wakeup->disconnect &&
14933 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
14935 if (wakeup->magic_pkt &&
14936 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
14938 if (wakeup->gtk_rekey_failure &&
14939 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
14941 if (wakeup->eap_identity_req &&
14942 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
14944 if (wakeup->four_way_handshake &&
14945 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
14947 if (wakeup->rfkill_release &&
14948 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
14951 if (wakeup->pattern_idx >= 0 &&
14952 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
14953 wakeup->pattern_idx))
14956 if (wakeup->tcp_match &&
14957 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
14960 if (wakeup->tcp_connlost &&
14961 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
14964 if (wakeup->tcp_nomoretokens &&
14966 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
14969 if (wakeup->packet) {
14970 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
14971 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
14973 if (!wakeup->packet_80211) {
14975 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
14977 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
14980 if (wakeup->packet_len &&
14981 nla_put_u32(msg, len_attr, wakeup->packet_len))
14984 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
14989 if (wakeup->net_detect &&
14990 cfg80211_net_detect_results(msg, wakeup))
14993 nla_nest_end(msg, reasons);
14996 genlmsg_end(msg, hdr);
14998 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
14999 NL80211_MCGRP_MLME, gfp);
15005 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
15008 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
15009 enum nl80211_tdls_operation oper,
15010 u16 reason_code, gfp_t gfp)
15012 struct wireless_dev *wdev = dev->ieee80211_ptr;
15013 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
15014 struct sk_buff *msg;
15017 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
15020 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15024 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
15030 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15031 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
15032 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
15033 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
15034 (reason_code > 0 &&
15035 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
15036 goto nla_put_failure;
15038 genlmsg_end(msg, hdr);
15040 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15041 NL80211_MCGRP_MLME, gfp);
15045 genlmsg_cancel(msg, hdr);
15048 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
15050 static int nl80211_netlink_notify(struct notifier_block * nb,
15051 unsigned long state,
15054 struct netlink_notify *notify = _notify;
15055 struct cfg80211_registered_device *rdev;
15056 struct wireless_dev *wdev;
15057 struct cfg80211_beacon_registration *reg, *tmp;
15059 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
15060 return NOTIFY_DONE;
15064 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
15065 struct cfg80211_sched_scan_request *sched_scan_req;
15067 list_for_each_entry_rcu(sched_scan_req,
15068 &rdev->sched_scan_req_list,
15070 if (sched_scan_req->owner_nlportid == notify->portid) {
15071 sched_scan_req->nl_owner_dead = true;
15072 schedule_work(&rdev->sched_scan_stop_wk);
15076 list_for_each_entry_rcu(wdev, &rdev->wiphy.wdev_list, list) {
15077 cfg80211_mlme_unregister_socket(wdev, notify->portid);
15079 if (wdev->owner_nlportid == notify->portid) {
15080 wdev->nl_owner_dead = true;
15081 schedule_work(&rdev->destroy_work);
15082 } else if (wdev->conn_owner_nlportid == notify->portid) {
15083 schedule_work(&wdev->disconnect_wk);
15087 spin_lock_bh(&rdev->beacon_registrations_lock);
15088 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
15090 if (reg->nlportid == notify->portid) {
15091 list_del(®->list);
15096 spin_unlock_bh(&rdev->beacon_registrations_lock);
15102 * It is possible that the user space process that is controlling the
15103 * indoor setting disappeared, so notify the regulatory core.
15105 regulatory_netlink_notify(notify->portid);
15109 static struct notifier_block nl80211_netlink_notifier = {
15110 .notifier_call = nl80211_netlink_notify,
15113 void cfg80211_ft_event(struct net_device *netdev,
15114 struct cfg80211_ft_event_params *ft_event)
15116 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
15117 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15118 struct sk_buff *msg;
15121 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
15123 if (!ft_event->target_ap)
15126 msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
15130 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
15134 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15135 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
15136 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
15139 if (ft_event->ies &&
15140 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
15142 if (ft_event->ric_ies &&
15143 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
15144 ft_event->ric_ies))
15147 genlmsg_end(msg, hdr);
15149 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
15150 NL80211_MCGRP_MLME, GFP_KERNEL);
15155 EXPORT_SYMBOL(cfg80211_ft_event);
15157 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
15159 struct cfg80211_registered_device *rdev;
15160 struct sk_buff *msg;
15164 rdev = wiphy_to_rdev(wdev->wiphy);
15165 if (!rdev->crit_proto_nlportid)
15168 nlportid = rdev->crit_proto_nlportid;
15169 rdev->crit_proto_nlportid = 0;
15171 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
15175 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
15177 goto nla_put_failure;
15179 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15180 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15182 goto nla_put_failure;
15184 genlmsg_end(msg, hdr);
15186 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
15191 genlmsg_cancel(msg, hdr);
15194 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
15196 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
15198 struct wiphy *wiphy = wdev->wiphy;
15199 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
15200 struct sk_buff *msg;
15203 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
15207 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
15211 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
15212 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
15213 nla_put_u64_64bit(msg, NL80211_ATTR_WDEV, wdev_id(wdev),
15217 genlmsg_end(msg, hdr);
15219 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
15220 NL80211_MCGRP_MLME, GFP_KERNEL);
15226 /* initialisation/exit functions */
15228 int __init nl80211_init(void)
15232 err = genl_register_family(&nl80211_fam);
15236 err = netlink_register_notifier(&nl80211_netlink_notifier);
15242 genl_unregister_family(&nl80211_fam);
15246 void nl80211_exit(void)
15248 netlink_unregister_notifier(&nl80211_netlink_notifier);
15249 genl_unregister_family(&nl80211_fam);