2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/slab.h>
11 #include <linux/list.h>
12 #include <linux/if_ether.h>
13 #include <linux/ieee80211.h>
14 #include <linux/nl80211.h>
15 #include <linux/rtnetlink.h>
16 #include <linux/netlink.h>
17 #include <linux/etherdevice.h>
18 #include <net/net_namespace.h>
19 #include <net/genetlink.h>
20 #include <net/cfg80211.h>
26 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
32 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
37 /* the netlink family */
38 static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
49 /* internal helper: get rdev and dev */
50 static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
56 if (!attrs[NL80211_ATTR_IFINDEX])
59 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
60 *dev = dev_get_by_index(netns, ifindex);
64 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
67 return PTR_ERR(*rdev);
73 static struct cfg80211_registered_device *
74 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
76 struct cfg80211_registered_device *rdev = NULL, *tmp;
77 struct net_device *netdev;
79 assert_cfg80211_lock();
81 if (!attrs[NL80211_ATTR_WIPHY] &&
82 !attrs[NL80211_ATTR_IFINDEX])
83 return ERR_PTR(-EINVAL);
85 if (attrs[NL80211_ATTR_WIPHY])
86 rdev = cfg80211_rdev_by_wiphy_idx(
87 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
89 if (attrs[NL80211_ATTR_IFINDEX]) {
90 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 netdev = dev_get_by_index(netns, ifindex);
93 if (netdev->ieee80211_ptr)
95 netdev->ieee80211_ptr->wiphy);
101 /* not wireless device -- return error */
103 return ERR_PTR(-EINVAL);
105 /* mismatch -- return error */
106 if (rdev && tmp != rdev)
107 return ERR_PTR(-EINVAL);
114 return ERR_PTR(-ENODEV);
116 if (netns != wiphy_net(&rdev->wiphy))
117 return ERR_PTR(-ENODEV);
123 * This function returns a pointer to the driver
124 * that the genl_info item that is passed refers to.
125 * If successful, it returns non-NULL and also locks
126 * the driver's mutex!
128 * This means that you need to call cfg80211_unlock_rdev()
129 * before being allowed to acquire &cfg80211_mutex!
131 * This is necessary because we need to lock the global
132 * mutex to get an item off the list safely, and then
133 * we lock the rdev mutex so it doesn't go away under us.
135 * We don't want to keep cfg80211_mutex locked
136 * for all the time in order to allow requests on
137 * other interfaces to go through at the same time.
139 * The result of this can be a PTR_ERR and hence must
140 * be checked with IS_ERR() for errors.
142 static struct cfg80211_registered_device *
143 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
145 struct cfg80211_registered_device *rdev;
147 mutex_lock(&cfg80211_mutex);
148 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
150 /* if it is not an error we grab the lock on
151 * it to assure it won't be going away while
152 * we operate on it */
154 mutex_lock(&rdev->mtx);
156 mutex_unlock(&cfg80211_mutex);
161 /* policy for the attributes */
162 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
163 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
164 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
166 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
167 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
168 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
169 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
170 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
171 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
172 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
173 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
175 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
176 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
177 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
179 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
180 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
182 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
183 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
184 .len = WLAN_MAX_KEY_LEN },
185 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
186 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
187 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
188 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
189 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
191 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
192 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
193 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
194 .len = IEEE80211_MAX_DATA_LEN },
195 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
196 .len = IEEE80211_MAX_DATA_LEN },
197 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
198 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
199 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
200 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
201 .len = NL80211_MAX_SUPP_RATES },
202 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
203 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
204 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
205 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
206 .len = IEEE80211_MAX_MESH_ID_LEN },
207 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
209 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
210 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
212 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
213 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
214 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
215 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
216 .len = NL80211_MAX_SUPP_RATES },
217 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
219 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
220 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
222 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
224 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
225 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
226 .len = IEEE80211_MAX_DATA_LEN },
227 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
228 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
230 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_SSID_LEN },
232 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
234 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
235 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
236 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
237 [NL80211_ATTR_STA_FLAGS2] = {
238 .len = sizeof(struct nl80211_sta_flag_update),
240 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
241 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
242 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
243 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
244 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
245 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
246 [NL80211_ATTR_PID] = { .type = NLA_U32 },
247 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
248 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
249 .len = WLAN_PMKID_LEN },
250 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
251 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
252 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
253 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_DATA_LEN },
255 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
256 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
257 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
258 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
259 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
260 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
261 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
262 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
263 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
264 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
265 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
266 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
267 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
268 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
269 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
270 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
271 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
272 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
273 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
274 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
275 .len = IEEE80211_MAX_DATA_LEN },
276 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
277 .len = IEEE80211_MAX_DATA_LEN },
278 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
279 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
280 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
281 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
282 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
283 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
284 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
285 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
286 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
287 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_DATA_LEN },
289 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
290 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
291 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
292 .len = NL80211_HT_CAPABILITY_LEN
294 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
295 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
296 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
299 /* policy for the key attributes */
300 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
301 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
302 [NL80211_KEY_IDX] = { .type = NLA_U8 },
303 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
304 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
305 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
306 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
307 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
308 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
311 /* policy for the key default flags */
312 static const struct nla_policy
313 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
314 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
315 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
318 /* policy for WoWLAN attributes */
319 static const struct nla_policy
320 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
321 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
322 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
323 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
324 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
325 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
326 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
327 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
328 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
331 /* policy for GTK rekey offload attributes */
332 static const struct nla_policy
333 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
334 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
335 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
336 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
339 static const struct nla_policy
340 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
341 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_SSID_LEN },
343 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
346 /* ifidx get helper */
347 static int nl80211_get_ifidx(struct netlink_callback *cb)
351 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
352 nl80211_fam.attrbuf, nl80211_fam.maxattr,
357 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
360 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
366 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
367 struct netlink_callback *cb,
368 struct cfg80211_registered_device **rdev,
369 struct net_device **dev)
371 int ifidx = cb->args[0];
375 ifidx = nl80211_get_ifidx(cb);
383 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
389 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
391 err = PTR_ERR(*rdev);
401 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
403 cfg80211_unlock_rdev(rdev);
408 static bool is_valid_ie_attr(const struct nlattr *attr)
416 pos = nla_data(attr);
437 /* message building helper */
438 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
441 /* since there is no private header just add the generic one */
442 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
445 static int nl80211_msg_put_channel(struct sk_buff *msg,
446 struct ieee80211_channel *chan)
448 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
450 goto nla_put_failure;
452 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
453 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
454 goto nla_put_failure;
455 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
456 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
457 goto nla_put_failure;
458 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
459 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
460 goto nla_put_failure;
461 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
462 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
463 goto nla_put_failure;
465 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
466 DBM_TO_MBM(chan->max_power)))
467 goto nla_put_failure;
475 /* netlink command implementations */
482 bool def_uni, def_multi;
485 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
487 struct nlattr *tb[NL80211_KEY_MAX + 1];
488 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
493 k->def = !!tb[NL80211_KEY_DEFAULT];
494 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
503 if (tb[NL80211_KEY_IDX])
504 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
506 if (tb[NL80211_KEY_DATA]) {
507 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
508 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
511 if (tb[NL80211_KEY_SEQ]) {
512 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
513 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
516 if (tb[NL80211_KEY_CIPHER])
517 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
519 if (tb[NL80211_KEY_TYPE]) {
520 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
521 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
525 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
526 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
527 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
528 tb[NL80211_KEY_DEFAULT_TYPES],
529 nl80211_key_default_policy);
533 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
534 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
540 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
542 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
543 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
544 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
547 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
548 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
549 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
552 if (info->attrs[NL80211_ATTR_KEY_IDX])
553 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
555 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
556 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
558 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
559 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
568 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
569 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
570 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
574 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
575 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
576 int err = nla_parse_nested(
577 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
578 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
579 nl80211_key_default_policy);
583 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
584 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
590 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
594 memset(k, 0, sizeof(*k));
598 if (info->attrs[NL80211_ATTR_KEY])
599 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
601 err = nl80211_parse_key_old(info, k);
606 if (k->def && k->defmgmt)
610 if (k->def_uni || !k->def_multi)
616 if (k->idx < 4 || k->idx > 5)
619 if (k->idx < 0 || k->idx > 3)
622 if (k->idx < 0 || k->idx > 5)
630 static struct cfg80211_cached_keys *
631 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
634 struct key_parse parse;
636 struct cfg80211_cached_keys *result;
637 int rem, err, def = 0;
639 result = kzalloc(sizeof(*result), GFP_KERNEL);
641 return ERR_PTR(-ENOMEM);
644 result->defmgmt = -1;
646 nla_for_each_nested(key, keys, rem) {
647 memset(&parse, 0, sizeof(parse));
650 err = nl80211_parse_key_new(key, &parse);
656 if (parse.idx < 0 || parse.idx > 4)
662 result->def = parse.idx;
663 if (!parse.def_uni || !parse.def_multi)
665 } else if (parse.defmgmt)
667 err = cfg80211_validate_key_settings(rdev, &parse.p,
668 parse.idx, false, NULL);
671 result->params[parse.idx].cipher = parse.p.cipher;
672 result->params[parse.idx].key_len = parse.p.key_len;
673 result->params[parse.idx].key = result->data[parse.idx];
674 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
683 static int nl80211_key_allowed(struct wireless_dev *wdev)
685 ASSERT_WDEV_LOCK(wdev);
687 switch (wdev->iftype) {
688 case NL80211_IFTYPE_AP:
689 case NL80211_IFTYPE_AP_VLAN:
690 case NL80211_IFTYPE_P2P_GO:
691 case NL80211_IFTYPE_MESH_POINT:
693 case NL80211_IFTYPE_ADHOC:
694 if (!wdev->current_bss)
697 case NL80211_IFTYPE_STATION:
698 case NL80211_IFTYPE_P2P_CLIENT:
699 if (wdev->sme_state != CFG80211_SME_CONNECTED)
709 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
711 struct nlattr *nl_modes = nla_nest_start(msg, attr);
715 goto nla_put_failure;
719 if ((ifmodes & 1) && nla_put_flag(msg, i))
720 goto nla_put_failure;
725 nla_nest_end(msg, nl_modes);
732 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
735 struct nlattr *nl_combis;
738 nl_combis = nla_nest_start(msg,
739 NL80211_ATTR_INTERFACE_COMBINATIONS);
741 goto nla_put_failure;
743 for (i = 0; i < wiphy->n_iface_combinations; i++) {
744 const struct ieee80211_iface_combination *c;
745 struct nlattr *nl_combi, *nl_limits;
747 c = &wiphy->iface_combinations[i];
749 nl_combi = nla_nest_start(msg, i + 1);
751 goto nla_put_failure;
753 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
755 goto nla_put_failure;
757 for (j = 0; j < c->n_limits; j++) {
758 struct nlattr *nl_limit;
760 nl_limit = nla_nest_start(msg, j + 1);
762 goto nla_put_failure;
763 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
765 goto nla_put_failure;
766 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
768 goto nla_put_failure;
769 nla_nest_end(msg, nl_limit);
772 nla_nest_end(msg, nl_limits);
774 if (c->beacon_int_infra_match &&
775 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
776 goto nla_put_failure;
777 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
778 c->num_different_channels) ||
779 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
781 goto nla_put_failure;
783 nla_nest_end(msg, nl_combi);
786 nla_nest_end(msg, nl_combis);
793 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
794 struct cfg80211_registered_device *dev)
797 struct nlattr *nl_bands, *nl_band;
798 struct nlattr *nl_freqs, *nl_freq;
799 struct nlattr *nl_rates, *nl_rate;
800 struct nlattr *nl_cmds;
801 enum ieee80211_band band;
802 struct ieee80211_channel *chan;
803 struct ieee80211_rate *rate;
805 const struct ieee80211_txrx_stypes *mgmt_stypes =
806 dev->wiphy.mgmt_stypes;
808 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
812 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
813 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
814 nla_put_u32(msg, NL80211_ATTR_GENERATION,
815 cfg80211_rdev_list_generation) ||
816 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
817 dev->wiphy.retry_short) ||
818 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
819 dev->wiphy.retry_long) ||
820 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
821 dev->wiphy.frag_threshold) ||
822 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
823 dev->wiphy.rts_threshold) ||
824 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
825 dev->wiphy.coverage_class) ||
826 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
827 dev->wiphy.max_scan_ssids) ||
828 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
829 dev->wiphy.max_sched_scan_ssids) ||
830 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
831 dev->wiphy.max_scan_ie_len) ||
832 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
833 dev->wiphy.max_sched_scan_ie_len) ||
834 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
835 dev->wiphy.max_match_sets))
836 goto nla_put_failure;
838 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
839 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
840 goto nla_put_failure;
841 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
842 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
843 goto nla_put_failure;
844 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
845 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
846 goto nla_put_failure;
847 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
848 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
849 goto nla_put_failure;
850 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
851 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
852 goto nla_put_failure;
853 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
854 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
855 goto nla_put_failure;
857 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
858 sizeof(u32) * dev->wiphy.n_cipher_suites,
859 dev->wiphy.cipher_suites))
860 goto nla_put_failure;
862 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
863 dev->wiphy.max_num_pmkids))
864 goto nla_put_failure;
866 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
867 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
868 goto nla_put_failure;
870 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
871 dev->wiphy.available_antennas_tx) ||
872 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
873 dev->wiphy.available_antennas_rx))
874 goto nla_put_failure;
876 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
877 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
878 dev->wiphy.probe_resp_offload))
879 goto nla_put_failure;
881 if ((dev->wiphy.available_antennas_tx ||
882 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
883 u32 tx_ant = 0, rx_ant = 0;
885 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
887 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
889 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
891 goto nla_put_failure;
895 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
896 dev->wiphy.interface_modes))
897 goto nla_put_failure;
899 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
901 goto nla_put_failure;
903 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
904 if (!dev->wiphy.bands[band])
907 nl_band = nla_nest_start(msg, band);
909 goto nla_put_failure;
912 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
913 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
914 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
915 &dev->wiphy.bands[band]->ht_cap.mcs) ||
916 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
917 dev->wiphy.bands[band]->ht_cap.cap) ||
918 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
919 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
920 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
921 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
922 goto nla_put_failure;
925 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
926 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
927 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
928 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
929 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
930 dev->wiphy.bands[band]->vht_cap.cap)))
931 goto nla_put_failure;
933 /* add frequencies */
934 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
936 goto nla_put_failure;
938 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
939 nl_freq = nla_nest_start(msg, i);
941 goto nla_put_failure;
943 chan = &dev->wiphy.bands[band]->channels[i];
945 if (nl80211_msg_put_channel(msg, chan))
946 goto nla_put_failure;
948 nla_nest_end(msg, nl_freq);
951 nla_nest_end(msg, nl_freqs);
954 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
956 goto nla_put_failure;
958 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
959 nl_rate = nla_nest_start(msg, i);
961 goto nla_put_failure;
963 rate = &dev->wiphy.bands[band]->bitrates[i];
964 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
966 goto nla_put_failure;
967 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
969 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
970 goto nla_put_failure;
972 nla_nest_end(msg, nl_rate);
975 nla_nest_end(msg, nl_rates);
977 nla_nest_end(msg, nl_band);
979 nla_nest_end(msg, nl_bands);
981 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
983 goto nla_put_failure;
988 if (dev->ops->op) { \
990 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
991 goto nla_put_failure; \
995 CMD(add_virtual_intf, NEW_INTERFACE);
996 CMD(change_virtual_intf, SET_INTERFACE);
997 CMD(add_key, NEW_KEY);
998 CMD(start_ap, START_AP);
999 CMD(add_station, NEW_STATION);
1000 CMD(add_mpath, NEW_MPATH);
1001 CMD(update_mesh_config, SET_MESH_CONFIG);
1002 CMD(change_bss, SET_BSS);
1003 CMD(auth, AUTHENTICATE);
1004 CMD(assoc, ASSOCIATE);
1005 CMD(deauth, DEAUTHENTICATE);
1006 CMD(disassoc, DISASSOCIATE);
1007 CMD(join_ibss, JOIN_IBSS);
1008 CMD(join_mesh, JOIN_MESH);
1009 CMD(set_pmksa, SET_PMKSA);
1010 CMD(del_pmksa, DEL_PMKSA);
1011 CMD(flush_pmksa, FLUSH_PMKSA);
1012 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1013 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1014 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1015 CMD(mgmt_tx, FRAME);
1016 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1017 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1019 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1020 goto nla_put_failure;
1022 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1023 dev->ops->join_mesh) {
1025 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1026 goto nla_put_failure;
1028 CMD(set_wds_peer, SET_WDS_PEER);
1029 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1030 CMD(tdls_mgmt, TDLS_MGMT);
1031 CMD(tdls_oper, TDLS_OPER);
1033 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1034 CMD(sched_scan_start, START_SCHED_SCAN);
1035 CMD(probe_client, PROBE_CLIENT);
1036 CMD(set_noack_map, SET_NOACK_MAP);
1037 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1039 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1040 goto nla_put_failure;
1043 #ifdef CONFIG_NL80211_TESTMODE
1044 CMD(testmode_cmd, TESTMODE);
1049 if (dev->ops->connect || dev->ops->auth) {
1051 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1052 goto nla_put_failure;
1055 if (dev->ops->disconnect || dev->ops->deauth) {
1057 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1058 goto nla_put_failure;
1061 nla_nest_end(msg, nl_cmds);
1063 if (dev->ops->remain_on_channel &&
1064 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1065 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1066 dev->wiphy.max_remain_on_channel_duration))
1067 goto nla_put_failure;
1069 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1070 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1071 goto nla_put_failure;
1075 struct nlattr *nl_ftypes, *nl_ifs;
1076 enum nl80211_iftype ift;
1078 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1080 goto nla_put_failure;
1082 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1083 nl_ftypes = nla_nest_start(msg, ift);
1085 goto nla_put_failure;
1087 stypes = mgmt_stypes[ift].tx;
1090 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1091 (i << 4) | IEEE80211_FTYPE_MGMT))
1092 goto nla_put_failure;
1096 nla_nest_end(msg, nl_ftypes);
1099 nla_nest_end(msg, nl_ifs);
1101 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1103 goto nla_put_failure;
1105 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1106 nl_ftypes = nla_nest_start(msg, ift);
1108 goto nla_put_failure;
1110 stypes = mgmt_stypes[ift].rx;
1113 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1114 (i << 4) | IEEE80211_FTYPE_MGMT))
1115 goto nla_put_failure;
1119 nla_nest_end(msg, nl_ftypes);
1121 nla_nest_end(msg, nl_ifs);
1125 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1126 struct nlattr *nl_wowlan;
1128 nl_wowlan = nla_nest_start(msg,
1129 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1131 goto nla_put_failure;
1133 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1134 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1135 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1136 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1137 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1138 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1139 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1140 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1141 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1142 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1143 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1144 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1145 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1146 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1147 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1148 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1149 goto nla_put_failure;
1150 if (dev->wiphy.wowlan.n_patterns) {
1151 struct nl80211_wowlan_pattern_support pat = {
1152 .max_patterns = dev->wiphy.wowlan.n_patterns,
1154 dev->wiphy.wowlan.pattern_min_len,
1156 dev->wiphy.wowlan.pattern_max_len,
1158 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1160 goto nla_put_failure;
1163 nla_nest_end(msg, nl_wowlan);
1167 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1168 dev->wiphy.software_iftypes))
1169 goto nla_put_failure;
1171 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1172 goto nla_put_failure;
1174 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1175 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1176 dev->wiphy.ap_sme_capa))
1177 goto nla_put_failure;
1179 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1180 dev->wiphy.features))
1181 goto nla_put_failure;
1183 if (dev->wiphy.ht_capa_mod_mask &&
1184 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1185 sizeof(*dev->wiphy.ht_capa_mod_mask),
1186 dev->wiphy.ht_capa_mod_mask))
1187 goto nla_put_failure;
1189 return genlmsg_end(msg, hdr);
1192 genlmsg_cancel(msg, hdr);
1196 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1199 int start = cb->args[0];
1200 struct cfg80211_registered_device *dev;
1202 mutex_lock(&cfg80211_mutex);
1203 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1204 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1208 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1209 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1215 mutex_unlock(&cfg80211_mutex);
1222 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1224 struct sk_buff *msg;
1225 struct cfg80211_registered_device *dev = info->user_ptr[0];
1227 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1231 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1236 return genlmsg_reply(msg, info);
1239 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1240 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1241 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1242 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1243 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1244 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1247 static int parse_txq_params(struct nlattr *tb[],
1248 struct ieee80211_txq_params *txq_params)
1250 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1251 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1252 !tb[NL80211_TXQ_ATTR_AIFS])
1255 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1256 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1257 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1258 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1259 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1261 if (txq_params->ac >= NL80211_NUM_ACS)
1267 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1270 * You can only set the channel explicitly for WDS interfaces,
1271 * all others have their channel managed via their respective
1272 * "establish a connection" command (connect, join, ...)
1274 * For AP/GO and mesh mode, the channel can be set with the
1275 * channel userspace API, but is only stored and passed to the
1276 * low-level driver when the AP starts or the mesh is joined.
1277 * This is for backward compatibility, userspace can also give
1278 * the channel in the start-ap or join-mesh commands instead.
1280 * Monitors are special as they are normally slaved to
1281 * whatever else is going on, so they have their own special
1282 * operation to set the monitor channel if possible.
1285 wdev->iftype == NL80211_IFTYPE_AP ||
1286 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1287 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1288 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1291 static bool nl80211_valid_channel_type(struct genl_info *info,
1292 enum nl80211_channel_type *channel_type)
1294 enum nl80211_channel_type tmp;
1296 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1299 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1300 if (tmp != NL80211_CHAN_NO_HT &&
1301 tmp != NL80211_CHAN_HT20 &&
1302 tmp != NL80211_CHAN_HT40PLUS &&
1303 tmp != NL80211_CHAN_HT40MINUS)
1307 *channel_type = tmp;
1312 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1313 struct wireless_dev *wdev,
1314 struct genl_info *info)
1316 struct ieee80211_channel *channel;
1317 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1320 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1323 iftype = wdev->iftype;
1325 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1328 if (!nl80211_can_set_dev_channel(wdev))
1331 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1332 !nl80211_valid_channel_type(info, &channel_type))
1335 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1337 mutex_lock(&rdev->devlist_mtx);
1339 case NL80211_IFTYPE_AP:
1340 case NL80211_IFTYPE_P2P_GO:
1341 if (wdev->beacon_interval) {
1345 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1346 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1352 wdev->preset_chan = channel;
1353 wdev->preset_chantype = channel_type;
1356 case NL80211_IFTYPE_MESH_POINT:
1357 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1359 case NL80211_IFTYPE_MONITOR:
1360 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1365 mutex_unlock(&rdev->devlist_mtx);
1370 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1373 struct net_device *netdev = info->user_ptr[1];
1375 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1378 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1381 struct net_device *dev = info->user_ptr[1];
1382 struct wireless_dev *wdev = dev->ieee80211_ptr;
1385 if (!info->attrs[NL80211_ATTR_MAC])
1388 if (netif_running(dev))
1391 if (!rdev->ops->set_wds_peer)
1394 if (wdev->iftype != NL80211_IFTYPE_WDS)
1397 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1398 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1402 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1404 struct cfg80211_registered_device *rdev;
1405 struct net_device *netdev = NULL;
1406 struct wireless_dev *wdev;
1407 int result = 0, rem_txq_params = 0;
1408 struct nlattr *nl_txq_params;
1410 u8 retry_short = 0, retry_long = 0;
1411 u32 frag_threshold = 0, rts_threshold = 0;
1412 u8 coverage_class = 0;
1415 * Try to find the wiphy and netdev. Normally this
1416 * function shouldn't need the netdev, but this is
1417 * done for backward compatibility -- previously
1418 * setting the channel was done per wiphy, but now
1419 * it is per netdev. Previous userland like hostapd
1420 * also passed a netdev to set_wiphy, so that it is
1421 * possible to let that go to the right netdev!
1423 mutex_lock(&cfg80211_mutex);
1425 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1426 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1428 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1429 if (netdev && netdev->ieee80211_ptr) {
1430 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1431 mutex_lock(&rdev->mtx);
1437 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1440 mutex_unlock(&cfg80211_mutex);
1441 return PTR_ERR(rdev);
1447 mutex_lock(&rdev->mtx);
1448 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1449 wdev = netdev->ieee80211_ptr;
1454 * end workaround code, by now the rdev is available
1455 * and locked, and wdev may or may not be NULL.
1458 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1459 result = cfg80211_dev_rename(
1460 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1462 mutex_unlock(&cfg80211_mutex);
1467 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1468 struct ieee80211_txq_params txq_params;
1469 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1471 if (!rdev->ops->set_txq_params) {
1472 result = -EOPNOTSUPP;
1481 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1482 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1487 if (!netif_running(netdev)) {
1492 nla_for_each_nested(nl_txq_params,
1493 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1495 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1496 nla_data(nl_txq_params),
1497 nla_len(nl_txq_params),
1499 result = parse_txq_params(tb, &txq_params);
1503 result = rdev->ops->set_txq_params(&rdev->wiphy,
1511 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1512 result = __nl80211_set_channel(rdev, wdev, info);
1517 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1518 enum nl80211_tx_power_setting type;
1521 if (!rdev->ops->set_tx_power) {
1522 result = -EOPNOTSUPP;
1526 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1527 type = nla_get_u32(info->attrs[idx]);
1529 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1530 (type != NL80211_TX_POWER_AUTOMATIC)) {
1535 if (type != NL80211_TX_POWER_AUTOMATIC) {
1536 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1537 mbm = nla_get_u32(info->attrs[idx]);
1540 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1545 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1546 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1548 if ((!rdev->wiphy.available_antennas_tx &&
1549 !rdev->wiphy.available_antennas_rx) ||
1550 !rdev->ops->set_antenna) {
1551 result = -EOPNOTSUPP;
1555 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1556 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1558 /* reject antenna configurations which don't match the
1559 * available antenna masks, except for the "all" mask */
1560 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1561 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1566 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1567 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1569 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1576 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1577 retry_short = nla_get_u8(
1578 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1579 if (retry_short == 0) {
1583 changed |= WIPHY_PARAM_RETRY_SHORT;
1586 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1587 retry_long = nla_get_u8(
1588 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1589 if (retry_long == 0) {
1593 changed |= WIPHY_PARAM_RETRY_LONG;
1596 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1597 frag_threshold = nla_get_u32(
1598 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1599 if (frag_threshold < 256) {
1603 if (frag_threshold != (u32) -1) {
1605 * Fragments (apart from the last one) are required to
1606 * have even length. Make the fragmentation code
1607 * simpler by stripping LSB should someone try to use
1608 * odd threshold value.
1610 frag_threshold &= ~0x1;
1612 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1615 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1616 rts_threshold = nla_get_u32(
1617 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1618 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1621 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1622 coverage_class = nla_get_u8(
1623 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1624 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1628 u8 old_retry_short, old_retry_long;
1629 u32 old_frag_threshold, old_rts_threshold;
1630 u8 old_coverage_class;
1632 if (!rdev->ops->set_wiphy_params) {
1633 result = -EOPNOTSUPP;
1637 old_retry_short = rdev->wiphy.retry_short;
1638 old_retry_long = rdev->wiphy.retry_long;
1639 old_frag_threshold = rdev->wiphy.frag_threshold;
1640 old_rts_threshold = rdev->wiphy.rts_threshold;
1641 old_coverage_class = rdev->wiphy.coverage_class;
1643 if (changed & WIPHY_PARAM_RETRY_SHORT)
1644 rdev->wiphy.retry_short = retry_short;
1645 if (changed & WIPHY_PARAM_RETRY_LONG)
1646 rdev->wiphy.retry_long = retry_long;
1647 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1648 rdev->wiphy.frag_threshold = frag_threshold;
1649 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1650 rdev->wiphy.rts_threshold = rts_threshold;
1651 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1652 rdev->wiphy.coverage_class = coverage_class;
1654 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1656 rdev->wiphy.retry_short = old_retry_short;
1657 rdev->wiphy.retry_long = old_retry_long;
1658 rdev->wiphy.frag_threshold = old_frag_threshold;
1659 rdev->wiphy.rts_threshold = old_rts_threshold;
1660 rdev->wiphy.coverage_class = old_coverage_class;
1665 mutex_unlock(&rdev->mtx);
1672 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1673 struct cfg80211_registered_device *rdev,
1674 struct net_device *dev)
1678 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1682 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1683 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1684 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1685 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1686 dev->ieee80211_ptr->iftype) ||
1687 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1688 rdev->devlist_generation ^
1689 (cfg80211_rdev_list_generation << 2)))
1690 goto nla_put_failure;
1692 if (rdev->ops->get_channel) {
1693 struct ieee80211_channel *chan;
1694 enum nl80211_channel_type channel_type;
1696 chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type);
1698 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1699 chan->center_freq) ||
1700 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1702 goto nla_put_failure;
1705 return genlmsg_end(msg, hdr);
1708 genlmsg_cancel(msg, hdr);
1712 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1716 int wp_start = cb->args[0];
1717 int if_start = cb->args[1];
1718 struct cfg80211_registered_device *rdev;
1719 struct wireless_dev *wdev;
1721 mutex_lock(&cfg80211_mutex);
1722 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1723 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1725 if (wp_idx < wp_start) {
1731 mutex_lock(&rdev->devlist_mtx);
1732 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1733 if (if_idx < if_start) {
1737 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1738 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1739 rdev, wdev->netdev) < 0) {
1740 mutex_unlock(&rdev->devlist_mtx);
1745 mutex_unlock(&rdev->devlist_mtx);
1750 mutex_unlock(&cfg80211_mutex);
1752 cb->args[0] = wp_idx;
1753 cb->args[1] = if_idx;
1758 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1760 struct sk_buff *msg;
1761 struct cfg80211_registered_device *dev = info->user_ptr[0];
1762 struct net_device *netdev = info->user_ptr[1];
1764 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1768 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1774 return genlmsg_reply(msg, info);
1777 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1778 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1779 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1780 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1781 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1782 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1785 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1787 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1795 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1796 nla, mntr_flags_policy))
1799 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1801 *mntrflags |= (1<<flag);
1806 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1807 struct net_device *netdev, u8 use_4addr,
1808 enum nl80211_iftype iftype)
1811 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1817 case NL80211_IFTYPE_AP_VLAN:
1818 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1821 case NL80211_IFTYPE_STATION:
1822 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1832 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1835 struct vif_params params;
1837 enum nl80211_iftype otype, ntype;
1838 struct net_device *dev = info->user_ptr[1];
1839 u32 _flags, *flags = NULL;
1840 bool change = false;
1842 memset(¶ms, 0, sizeof(params));
1844 otype = ntype = dev->ieee80211_ptr->iftype;
1846 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1847 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1850 if (ntype > NL80211_IFTYPE_MAX)
1854 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1855 struct wireless_dev *wdev = dev->ieee80211_ptr;
1857 if (ntype != NL80211_IFTYPE_MESH_POINT)
1859 if (netif_running(dev))
1863 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1864 IEEE80211_MAX_MESH_ID_LEN);
1865 wdev->mesh_id_up_len =
1866 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1867 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1868 wdev->mesh_id_up_len);
1872 if (info->attrs[NL80211_ATTR_4ADDR]) {
1873 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1875 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1879 params.use_4addr = -1;
1882 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1883 if (ntype != NL80211_IFTYPE_MONITOR)
1885 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1895 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1899 if (!err && params.use_4addr != -1)
1900 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1905 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1908 struct vif_params params;
1909 struct net_device *dev;
1911 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1914 memset(¶ms, 0, sizeof(params));
1916 if (!info->attrs[NL80211_ATTR_IFNAME])
1919 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1920 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1921 if (type > NL80211_IFTYPE_MAX)
1925 if (!rdev->ops->add_virtual_intf ||
1926 !(rdev->wiphy.interface_modes & (1 << type)))
1929 if (info->attrs[NL80211_ATTR_4ADDR]) {
1930 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1931 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1936 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1937 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1939 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1940 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1941 type, err ? NULL : &flags, ¶ms);
1943 return PTR_ERR(dev);
1945 if (type == NL80211_IFTYPE_MESH_POINT &&
1946 info->attrs[NL80211_ATTR_MESH_ID]) {
1947 struct wireless_dev *wdev = dev->ieee80211_ptr;
1950 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1951 IEEE80211_MAX_MESH_ID_LEN);
1952 wdev->mesh_id_up_len =
1953 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1954 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1955 wdev->mesh_id_up_len);
1962 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1965 struct net_device *dev = info->user_ptr[1];
1967 if (!rdev->ops->del_virtual_intf)
1970 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1973 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1976 struct net_device *dev = info->user_ptr[1];
1979 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1982 if (!rdev->ops->set_noack_map)
1985 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1987 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1990 struct get_key_cookie {
1991 struct sk_buff *msg;
1996 static void get_key_callback(void *c, struct key_params *params)
1999 struct get_key_cookie *cookie = c;
2002 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2003 params->key_len, params->key)) ||
2005 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2006 params->seq_len, params->seq)) ||
2008 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2010 goto nla_put_failure;
2012 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2014 goto nla_put_failure;
2017 nla_put(cookie->msg, NL80211_KEY_DATA,
2018 params->key_len, params->key)) ||
2020 nla_put(cookie->msg, NL80211_KEY_SEQ,
2021 params->seq_len, params->seq)) ||
2023 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2025 goto nla_put_failure;
2027 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2028 goto nla_put_failure;
2030 nla_nest_end(cookie->msg, key);
2037 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2041 struct net_device *dev = info->user_ptr[1];
2043 const u8 *mac_addr = NULL;
2045 struct get_key_cookie cookie = {
2049 struct sk_buff *msg;
2051 if (info->attrs[NL80211_ATTR_KEY_IDX])
2052 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2057 if (info->attrs[NL80211_ATTR_MAC])
2058 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2060 pairwise = !!mac_addr;
2061 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2062 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2063 if (kt >= NUM_NL80211_KEYTYPES)
2065 if (kt != NL80211_KEYTYPE_GROUP &&
2066 kt != NL80211_KEYTYPE_PAIRWISE)
2068 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2071 if (!rdev->ops->get_key)
2074 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2078 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2079 NL80211_CMD_NEW_KEY);
2081 return PTR_ERR(hdr);
2084 cookie.idx = key_idx;
2086 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2087 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2088 goto nla_put_failure;
2090 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2091 goto nla_put_failure;
2093 if (pairwise && mac_addr &&
2094 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2097 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2098 mac_addr, &cookie, get_key_callback);
2104 goto nla_put_failure;
2106 genlmsg_end(msg, hdr);
2107 return genlmsg_reply(msg, info);
2116 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2119 struct key_parse key;
2121 struct net_device *dev = info->user_ptr[1];
2123 err = nl80211_parse_key(info, &key);
2130 /* only support setting default key */
2131 if (!key.def && !key.defmgmt)
2134 wdev_lock(dev->ieee80211_ptr);
2137 if (!rdev->ops->set_default_key) {
2142 err = nl80211_key_allowed(dev->ieee80211_ptr);
2146 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2147 key.def_uni, key.def_multi);
2152 #ifdef CONFIG_CFG80211_WEXT
2153 dev->ieee80211_ptr->wext.default_key = key.idx;
2156 if (key.def_uni || !key.def_multi) {
2161 if (!rdev->ops->set_default_mgmt_key) {
2166 err = nl80211_key_allowed(dev->ieee80211_ptr);
2170 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2175 #ifdef CONFIG_CFG80211_WEXT
2176 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2181 wdev_unlock(dev->ieee80211_ptr);
2186 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2190 struct net_device *dev = info->user_ptr[1];
2191 struct key_parse key;
2192 const u8 *mac_addr = NULL;
2194 err = nl80211_parse_key(info, &key);
2201 if (info->attrs[NL80211_ATTR_MAC])
2202 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2204 if (key.type == -1) {
2206 key.type = NL80211_KEYTYPE_PAIRWISE;
2208 key.type = NL80211_KEYTYPE_GROUP;
2212 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2213 key.type != NL80211_KEYTYPE_GROUP)
2216 if (!rdev->ops->add_key)
2219 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2220 key.type == NL80211_KEYTYPE_PAIRWISE,
2224 wdev_lock(dev->ieee80211_ptr);
2225 err = nl80211_key_allowed(dev->ieee80211_ptr);
2227 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2228 key.type == NL80211_KEYTYPE_PAIRWISE,
2230 wdev_unlock(dev->ieee80211_ptr);
2235 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2239 struct net_device *dev = info->user_ptr[1];
2240 u8 *mac_addr = NULL;
2241 struct key_parse key;
2243 err = nl80211_parse_key(info, &key);
2247 if (info->attrs[NL80211_ATTR_MAC])
2248 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2250 if (key.type == -1) {
2252 key.type = NL80211_KEYTYPE_PAIRWISE;
2254 key.type = NL80211_KEYTYPE_GROUP;
2258 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2259 key.type != NL80211_KEYTYPE_GROUP)
2262 if (!rdev->ops->del_key)
2265 wdev_lock(dev->ieee80211_ptr);
2266 err = nl80211_key_allowed(dev->ieee80211_ptr);
2268 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2269 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2273 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2274 key.type == NL80211_KEYTYPE_PAIRWISE,
2277 #ifdef CONFIG_CFG80211_WEXT
2279 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2280 dev->ieee80211_ptr->wext.default_key = -1;
2281 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2282 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2285 wdev_unlock(dev->ieee80211_ptr);
2290 static int nl80211_parse_beacon(struct genl_info *info,
2291 struct cfg80211_beacon_data *bcn)
2293 bool haveinfo = false;
2295 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2296 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2297 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2298 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2301 memset(bcn, 0, sizeof(*bcn));
2303 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2304 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2305 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2311 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2312 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2314 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2321 if (info->attrs[NL80211_ATTR_IE]) {
2322 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2323 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2326 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2327 bcn->proberesp_ies =
2328 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2329 bcn->proberesp_ies_len =
2330 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2333 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2334 bcn->assocresp_ies =
2335 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2336 bcn->assocresp_ies_len =
2337 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2340 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2342 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2343 bcn->probe_resp_len =
2344 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2350 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2351 struct cfg80211_ap_settings *params)
2353 struct wireless_dev *wdev;
2356 mutex_lock(&rdev->devlist_mtx);
2358 list_for_each_entry(wdev, &rdev->netdev_list, list) {
2359 if (wdev->iftype != NL80211_IFTYPE_AP &&
2360 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2363 if (!wdev->preset_chan)
2366 params->channel = wdev->preset_chan;
2367 params->channel_type = wdev->preset_chantype;
2372 mutex_unlock(&rdev->devlist_mtx);
2377 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2379 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2380 struct net_device *dev = info->user_ptr[1];
2381 struct wireless_dev *wdev = dev->ieee80211_ptr;
2382 struct cfg80211_ap_settings params;
2385 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2386 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2389 if (!rdev->ops->start_ap)
2392 if (wdev->beacon_interval)
2395 memset(¶ms, 0, sizeof(params));
2397 /* these are required for START_AP */
2398 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2399 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2400 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2403 err = nl80211_parse_beacon(info, ¶ms.beacon);
2407 params.beacon_interval =
2408 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2409 params.dtim_period =
2410 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2412 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2417 * In theory, some of these attributes should be required here
2418 * but since they were not used when the command was originally
2419 * added, keep them optional for old user space programs to let
2420 * them continue to work with drivers that do not need the
2421 * additional information -- drivers must check!
2423 if (info->attrs[NL80211_ATTR_SSID]) {
2424 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2426 nla_len(info->attrs[NL80211_ATTR_SSID]);
2427 if (params.ssid_len == 0 ||
2428 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2432 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2433 params.hidden_ssid = nla_get_u32(
2434 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2435 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2436 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2437 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2441 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2443 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2444 params.auth_type = nla_get_u32(
2445 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2446 if (!nl80211_valid_auth_type(params.auth_type))
2449 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2451 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2452 NL80211_MAX_NR_CIPHER_SUITES);
2456 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2457 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2459 params.inactivity_timeout = nla_get_u16(
2460 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2463 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2464 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2466 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2467 !nl80211_valid_channel_type(info, &channel_type))
2470 params.channel = rdev_freq_to_chan(rdev,
2471 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2473 if (!params.channel)
2475 params.channel_type = channel_type;
2476 } else if (wdev->preset_chan) {
2477 params.channel = wdev->preset_chan;
2478 params.channel_type = wdev->preset_chantype;
2479 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2482 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2483 params.channel_type))
2486 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2488 wdev->preset_chan = params.channel;
2489 wdev->preset_chantype = params.channel_type;
2490 wdev->beacon_interval = params.beacon_interval;
2495 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2498 struct net_device *dev = info->user_ptr[1];
2499 struct wireless_dev *wdev = dev->ieee80211_ptr;
2500 struct cfg80211_beacon_data params;
2503 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2504 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2507 if (!rdev->ops->change_beacon)
2510 if (!wdev->beacon_interval)
2513 err = nl80211_parse_beacon(info, ¶ms);
2517 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2520 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2523 struct net_device *dev = info->user_ptr[1];
2524 struct wireless_dev *wdev = dev->ieee80211_ptr;
2527 if (!rdev->ops->stop_ap)
2530 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2531 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2534 if (!wdev->beacon_interval)
2537 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
2539 wdev->beacon_interval = 0;
2543 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2544 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2545 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2546 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2547 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2548 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2549 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2552 static int parse_station_flags(struct genl_info *info,
2553 enum nl80211_iftype iftype,
2554 struct station_parameters *params)
2556 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2561 * Try parsing the new attribute first so userspace
2562 * can specify both for older kernels.
2564 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2566 struct nl80211_sta_flag_update *sta_flags;
2568 sta_flags = nla_data(nla);
2569 params->sta_flags_mask = sta_flags->mask;
2570 params->sta_flags_set = sta_flags->set;
2571 if ((params->sta_flags_mask |
2572 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2577 /* if present, parse the old attribute */
2579 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2583 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2584 nla, sta_flags_policy))
2588 * Only allow certain flags for interface types so that
2589 * other attributes are silently ignored. Remember that
2590 * this is backward compatibility code with old userspace
2591 * and shouldn't be hit in other cases anyway.
2594 case NL80211_IFTYPE_AP:
2595 case NL80211_IFTYPE_AP_VLAN:
2596 case NL80211_IFTYPE_P2P_GO:
2597 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2598 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2599 BIT(NL80211_STA_FLAG_WME) |
2600 BIT(NL80211_STA_FLAG_MFP);
2602 case NL80211_IFTYPE_P2P_CLIENT:
2603 case NL80211_IFTYPE_STATION:
2604 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2605 BIT(NL80211_STA_FLAG_TDLS_PEER);
2607 case NL80211_IFTYPE_MESH_POINT:
2608 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2609 BIT(NL80211_STA_FLAG_MFP) |
2610 BIT(NL80211_STA_FLAG_AUTHORIZED);
2615 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2617 params->sta_flags_set |= (1<<flag);
2619 /* no longer support new API additions in old API */
2620 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2628 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2631 struct nlattr *rate;
2634 rate = nla_nest_start(msg, attr);
2636 goto nla_put_failure;
2638 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2639 bitrate = cfg80211_calculate_bitrate(info);
2641 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2642 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2643 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2644 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2645 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2646 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2647 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2648 goto nla_put_failure;
2650 nla_nest_end(msg, rate);
2657 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2659 struct cfg80211_registered_device *rdev,
2660 struct net_device *dev,
2661 const u8 *mac_addr, struct station_info *sinfo)
2664 struct nlattr *sinfoattr, *bss_param;
2666 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2670 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2671 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2672 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2673 goto nla_put_failure;
2675 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2677 goto nla_put_failure;
2678 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2679 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2680 sinfo->connected_time))
2681 goto nla_put_failure;
2682 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2683 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2684 sinfo->inactive_time))
2685 goto nla_put_failure;
2686 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2687 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2689 goto nla_put_failure;
2690 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2691 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2693 goto nla_put_failure;
2694 if ((sinfo->filled & STATION_INFO_LLID) &&
2695 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2696 goto nla_put_failure;
2697 if ((sinfo->filled & STATION_INFO_PLID) &&
2698 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2699 goto nla_put_failure;
2700 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2701 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2702 sinfo->plink_state))
2703 goto nla_put_failure;
2704 switch (rdev->wiphy.signal_type) {
2705 case CFG80211_SIGNAL_TYPE_MBM:
2706 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2707 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2709 goto nla_put_failure;
2710 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2711 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2713 goto nla_put_failure;
2718 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2719 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2720 NL80211_STA_INFO_TX_BITRATE))
2721 goto nla_put_failure;
2723 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2724 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2725 NL80211_STA_INFO_RX_BITRATE))
2726 goto nla_put_failure;
2728 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2729 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2731 goto nla_put_failure;
2732 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2733 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2735 goto nla_put_failure;
2736 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2737 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2739 goto nla_put_failure;
2740 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2741 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2743 goto nla_put_failure;
2744 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2745 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2746 sinfo->beacon_loss_count))
2747 goto nla_put_failure;
2748 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2749 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2751 goto nla_put_failure;
2753 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2754 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2755 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2756 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2757 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2758 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2759 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2760 sinfo->bss_param.dtim_period) ||
2761 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2762 sinfo->bss_param.beacon_interval))
2763 goto nla_put_failure;
2765 nla_nest_end(msg, bss_param);
2767 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2768 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2769 sizeof(struct nl80211_sta_flag_update),
2771 goto nla_put_failure;
2772 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2773 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2775 goto nla_put_failure;
2776 nla_nest_end(msg, sinfoattr);
2778 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2779 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2780 sinfo->assoc_req_ies))
2781 goto nla_put_failure;
2783 return genlmsg_end(msg, hdr);
2786 genlmsg_cancel(msg, hdr);
2790 static int nl80211_dump_station(struct sk_buff *skb,
2791 struct netlink_callback *cb)
2793 struct station_info sinfo;
2794 struct cfg80211_registered_device *dev;
2795 struct net_device *netdev;
2796 u8 mac_addr[ETH_ALEN];
2797 int sta_idx = cb->args[1];
2800 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2804 if (!dev->ops->dump_station) {
2810 memset(&sinfo, 0, sizeof(sinfo));
2811 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2818 if (nl80211_send_station(skb,
2819 NETLINK_CB(cb->skb).pid,
2820 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2821 dev, netdev, mac_addr,
2830 cb->args[1] = sta_idx;
2833 nl80211_finish_netdev_dump(dev);
2838 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2840 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2841 struct net_device *dev = info->user_ptr[1];
2842 struct station_info sinfo;
2843 struct sk_buff *msg;
2844 u8 *mac_addr = NULL;
2847 memset(&sinfo, 0, sizeof(sinfo));
2849 if (!info->attrs[NL80211_ATTR_MAC])
2852 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2854 if (!rdev->ops->get_station)
2857 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2861 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2865 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2866 rdev, dev, mac_addr, &sinfo) < 0) {
2871 return genlmsg_reply(msg, info);
2875 * Get vlan interface making sure it is running and on the right wiphy.
2877 static struct net_device *get_vlan(struct genl_info *info,
2878 struct cfg80211_registered_device *rdev)
2880 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2881 struct net_device *v;
2887 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2889 return ERR_PTR(-ENODEV);
2891 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2896 if (!netif_running(v)) {
2904 return ERR_PTR(ret);
2907 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2911 struct net_device *dev = info->user_ptr[1];
2912 struct station_parameters params;
2913 u8 *mac_addr = NULL;
2915 memset(¶ms, 0, sizeof(params));
2917 params.listen_interval = -1;
2918 params.plink_state = -1;
2920 if (info->attrs[NL80211_ATTR_STA_AID])
2923 if (!info->attrs[NL80211_ATTR_MAC])
2926 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2928 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2929 params.supported_rates =
2930 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2931 params.supported_rates_len =
2932 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2935 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2936 params.listen_interval =
2937 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2939 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2941 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2943 if (!rdev->ops->change_station)
2946 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2949 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2950 params.plink_action =
2951 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2953 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2954 params.plink_state =
2955 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2957 switch (dev->ieee80211_ptr->iftype) {
2958 case NL80211_IFTYPE_AP:
2959 case NL80211_IFTYPE_AP_VLAN:
2960 case NL80211_IFTYPE_P2P_GO:
2961 /* disallow mesh-specific things */
2962 if (params.plink_action)
2965 /* TDLS can't be set, ... */
2966 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2969 * ... but don't bother the driver with it. This works around
2970 * a hostapd/wpa_supplicant issue -- it always includes the
2971 * TLDS_PEER flag in the mask even for AP mode.
2973 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2975 /* accept only the listed bits */
2976 if (params.sta_flags_mask &
2977 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2978 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2979 BIT(NL80211_STA_FLAG_WME) |
2980 BIT(NL80211_STA_FLAG_MFP)))
2983 /* must be last in here for error handling */
2984 params.vlan = get_vlan(info, rdev);
2985 if (IS_ERR(params.vlan))
2986 return PTR_ERR(params.vlan);
2988 case NL80211_IFTYPE_P2P_CLIENT:
2989 case NL80211_IFTYPE_STATION:
2991 * Don't allow userspace to change the TDLS_PEER flag,
2992 * but silently ignore attempts to change it since we
2993 * don't have state here to verify that it doesn't try
2994 * to change the flag.
2996 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2998 case NL80211_IFTYPE_ADHOC:
2999 /* disallow things sta doesn't support */
3000 if (params.plink_action)
3004 if (params.listen_interval >= 0)
3006 /* reject any changes other than AUTHORIZED */
3007 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3010 case NL80211_IFTYPE_MESH_POINT:
3011 /* disallow things mesh doesn't support */
3016 if (params.listen_interval >= 0)
3019 * No special handling for TDLS here -- the userspace
3020 * mesh code doesn't have this bug.
3022 if (params.sta_flags_mask &
3023 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3024 BIT(NL80211_STA_FLAG_MFP) |
3025 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3032 /* be aware of params.vlan when changing code here */
3034 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3037 dev_put(params.vlan);
3042 static struct nla_policy
3043 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3044 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3045 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3048 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3052 struct net_device *dev = info->user_ptr[1];
3053 struct station_parameters params;
3054 u8 *mac_addr = NULL;
3056 memset(¶ms, 0, sizeof(params));
3058 if (!info->attrs[NL80211_ATTR_MAC])
3061 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3064 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3067 if (!info->attrs[NL80211_ATTR_STA_AID])
3070 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3071 params.supported_rates =
3072 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3073 params.supported_rates_len =
3074 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3075 params.listen_interval =
3076 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3078 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3079 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3082 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3084 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3086 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3087 params.plink_action =
3088 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3090 if (!rdev->ops->add_station)
3093 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3096 switch (dev->ieee80211_ptr->iftype) {
3097 case NL80211_IFTYPE_AP:
3098 case NL80211_IFTYPE_AP_VLAN:
3099 case NL80211_IFTYPE_P2P_GO:
3100 /* parse WME attributes if sta is WME capable */
3101 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3102 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3103 info->attrs[NL80211_ATTR_STA_WME]) {
3104 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3107 nla = info->attrs[NL80211_ATTR_STA_WME];
3108 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3109 nl80211_sta_wme_policy);
3113 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3114 params.uapsd_queues =
3115 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3116 if (params.uapsd_queues &
3117 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3120 if (tb[NL80211_STA_WME_MAX_SP])
3122 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3125 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3128 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3130 /* TDLS peers cannot be added */
3131 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3133 /* but don't bother the driver with it */
3134 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3136 /* must be last in here for error handling */
3137 params.vlan = get_vlan(info, rdev);
3138 if (IS_ERR(params.vlan))
3139 return PTR_ERR(params.vlan);
3141 case NL80211_IFTYPE_MESH_POINT:
3142 /* TDLS peers cannot be added */
3143 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3146 case NL80211_IFTYPE_STATION:
3147 /* Only TDLS peers can be added */
3148 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3150 /* Can only add if TDLS ... */
3151 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3153 /* ... with external setup is supported */
3154 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3161 /* be aware of params.vlan when changing code here */
3163 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3166 dev_put(params.vlan);
3170 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3173 struct net_device *dev = info->user_ptr[1];
3174 u8 *mac_addr = NULL;
3176 if (info->attrs[NL80211_ATTR_MAC])
3177 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3179 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3180 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3181 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3182 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3185 if (!rdev->ops->del_station)
3188 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3191 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3192 int flags, struct net_device *dev,
3193 u8 *dst, u8 *next_hop,
3194 struct mpath_info *pinfo)
3197 struct nlattr *pinfoattr;
3199 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3203 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3204 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3205 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3206 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3207 goto nla_put_failure;
3209 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3211 goto nla_put_failure;
3212 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3213 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3215 goto nla_put_failure;
3216 if (((pinfo->filled & MPATH_INFO_SN) &&
3217 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3218 ((pinfo->filled & MPATH_INFO_METRIC) &&
3219 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3221 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3222 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3224 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3225 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3227 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3228 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3229 pinfo->discovery_timeout)) ||
3230 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3231 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3232 pinfo->discovery_retries)))
3233 goto nla_put_failure;
3235 nla_nest_end(msg, pinfoattr);
3237 return genlmsg_end(msg, hdr);
3240 genlmsg_cancel(msg, hdr);
3244 static int nl80211_dump_mpath(struct sk_buff *skb,
3245 struct netlink_callback *cb)
3247 struct mpath_info pinfo;
3248 struct cfg80211_registered_device *dev;
3249 struct net_device *netdev;
3251 u8 next_hop[ETH_ALEN];
3252 int path_idx = cb->args[1];
3255 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3259 if (!dev->ops->dump_mpath) {
3264 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3270 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3271 dst, next_hop, &pinfo);
3277 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3278 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3279 netdev, dst, next_hop,
3288 cb->args[1] = path_idx;
3291 nl80211_finish_netdev_dump(dev);
3295 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3297 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3299 struct net_device *dev = info->user_ptr[1];
3300 struct mpath_info pinfo;
3301 struct sk_buff *msg;
3303 u8 next_hop[ETH_ALEN];
3305 memset(&pinfo, 0, sizeof(pinfo));
3307 if (!info->attrs[NL80211_ATTR_MAC])
3310 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3312 if (!rdev->ops->get_mpath)
3315 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3318 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3322 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3326 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3327 dev, dst, next_hop, &pinfo) < 0) {
3332 return genlmsg_reply(msg, info);
3335 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3338 struct net_device *dev = info->user_ptr[1];
3340 u8 *next_hop = NULL;
3342 if (!info->attrs[NL80211_ATTR_MAC])
3345 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3348 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3349 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3351 if (!rdev->ops->change_mpath)
3354 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3357 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3360 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3363 struct net_device *dev = info->user_ptr[1];
3365 u8 *next_hop = NULL;
3367 if (!info->attrs[NL80211_ATTR_MAC])
3370 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3373 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3374 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3376 if (!rdev->ops->add_mpath)
3379 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3382 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3385 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3387 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3388 struct net_device *dev = info->user_ptr[1];
3391 if (info->attrs[NL80211_ATTR_MAC])
3392 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3394 if (!rdev->ops->del_mpath)
3397 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3400 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3403 struct net_device *dev = info->user_ptr[1];
3404 struct bss_parameters params;
3406 memset(¶ms, 0, sizeof(params));
3407 /* default to not changing parameters */
3408 params.use_cts_prot = -1;
3409 params.use_short_preamble = -1;
3410 params.use_short_slot_time = -1;
3411 params.ap_isolate = -1;
3412 params.ht_opmode = -1;
3414 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3415 params.use_cts_prot =
3416 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3417 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3418 params.use_short_preamble =
3419 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3420 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3421 params.use_short_slot_time =
3422 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3423 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3424 params.basic_rates =
3425 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3426 params.basic_rates_len =
3427 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3429 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3430 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3431 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3433 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3435 if (!rdev->ops->change_bss)
3438 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3439 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3442 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3445 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3446 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3447 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3448 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3449 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3450 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3451 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3454 static int parse_reg_rule(struct nlattr *tb[],
3455 struct ieee80211_reg_rule *reg_rule)
3457 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3458 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3460 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3462 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3464 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3466 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3468 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3471 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3473 freq_range->start_freq_khz =
3474 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3475 freq_range->end_freq_khz =
3476 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3477 freq_range->max_bandwidth_khz =
3478 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3480 power_rule->max_eirp =
3481 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3483 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3484 power_rule->max_antenna_gain =
3485 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3490 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3496 * You should only get this when cfg80211 hasn't yet initialized
3497 * completely when built-in to the kernel right between the time
3498 * window between nl80211_init() and regulatory_init(), if that is
3501 mutex_lock(&cfg80211_mutex);
3502 if (unlikely(!cfg80211_regdomain)) {
3503 mutex_unlock(&cfg80211_mutex);
3504 return -EINPROGRESS;
3506 mutex_unlock(&cfg80211_mutex);
3508 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3511 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3513 r = regulatory_hint_user(data);
3518 static int nl80211_get_mesh_config(struct sk_buff *skb,
3519 struct genl_info *info)
3521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3522 struct net_device *dev = info->user_ptr[1];
3523 struct wireless_dev *wdev = dev->ieee80211_ptr;
3524 struct mesh_config cur_params;
3527 struct nlattr *pinfoattr;
3528 struct sk_buff *msg;
3530 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3533 if (!rdev->ops->get_mesh_config)
3537 /* If not connected, get default parameters */
3538 if (!wdev->mesh_id_len)
3539 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3541 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3548 /* Draw up a netlink message to send back */
3549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3552 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3553 NL80211_CMD_GET_MESH_CONFIG);
3556 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3558 goto nla_put_failure;
3559 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3560 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3561 cur_params.dot11MeshRetryTimeout) ||
3562 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3563 cur_params.dot11MeshConfirmTimeout) ||
3564 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3565 cur_params.dot11MeshHoldingTimeout) ||
3566 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3567 cur_params.dot11MeshMaxPeerLinks) ||
3568 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3569 cur_params.dot11MeshMaxRetries) ||
3570 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3571 cur_params.dot11MeshTTL) ||
3572 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3573 cur_params.element_ttl) ||
3574 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3575 cur_params.auto_open_plinks) ||
3576 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3577 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3578 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3579 cur_params.dot11MeshHWMPmaxPREQretries) ||
3580 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3581 cur_params.path_refresh_time) ||
3582 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3583 cur_params.min_discovery_timeout) ||
3584 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3585 cur_params.dot11MeshHWMPactivePathTimeout) ||
3586 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3587 cur_params.dot11MeshHWMPpreqMinInterval) ||
3588 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3589 cur_params.dot11MeshHWMPperrMinInterval) ||
3590 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3591 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3592 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3593 cur_params.dot11MeshHWMPRootMode) ||
3594 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3595 cur_params.dot11MeshHWMPRannInterval) ||
3596 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3597 cur_params.dot11MeshGateAnnouncementProtocol) ||
3598 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3599 cur_params.dot11MeshForwarding) ||
3600 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3601 cur_params.rssi_threshold) ||
3602 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3603 cur_params.ht_opmode) ||
3604 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3605 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3606 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3607 cur_params.dot11MeshHWMProotInterval) ||
3608 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3609 cur_params.dot11MeshHWMPconfirmationInterval))
3610 goto nla_put_failure;
3611 nla_nest_end(msg, pinfoattr);
3612 genlmsg_end(msg, hdr);
3613 return genlmsg_reply(msg, info);
3616 genlmsg_cancel(msg, hdr);
3622 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3623 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3624 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3625 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3626 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3627 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3628 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3629 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3630 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3631 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3632 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3633 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3634 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3635 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3636 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3637 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3638 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3639 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3640 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3641 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3642 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3643 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3644 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3645 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3646 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3647 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3650 static const struct nla_policy
3651 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3652 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3653 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3654 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3655 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3656 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3657 .len = IEEE80211_MAX_DATA_LEN },
3658 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3661 static int nl80211_parse_mesh_config(struct genl_info *info,
3662 struct mesh_config *cfg,
3665 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3668 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3670 if (table[attr_num]) {\
3671 cfg->param = nla_fn(table[attr_num]); \
3672 mask |= (1 << (attr_num - 1)); \
3677 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3679 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3680 info->attrs[NL80211_ATTR_MESH_CONFIG],
3681 nl80211_meshconf_params_policy))
3684 /* This makes sure that there aren't more than 32 mesh config
3685 * parameters (otherwise our bitfield scheme would not work.) */
3686 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3688 /* Fill in the params struct */
3689 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3690 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3692 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3693 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3696 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3698 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3699 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3702 mask, NL80211_MESHCONF_MAX_RETRIES,
3704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3705 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3707 mask, NL80211_MESHCONF_ELEMENT_TTL,
3709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3710 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3712 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3713 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3716 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3718 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3719 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3722 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3725 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3727 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3728 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3730 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3731 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3733 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3734 dot11MeshHWMPnetDiameterTraversalTime, mask,
3735 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3738 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3739 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3740 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3742 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3743 dot11MeshGateAnnouncementProtocol, mask,
3744 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3746 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3747 mask, NL80211_MESHCONF_FORWARDING,
3749 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3750 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3752 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3753 mask, NL80211_MESHCONF_HT_OPMODE,
3755 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3757 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3759 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3760 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3762 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3763 dot11MeshHWMPconfirmationInterval, mask,
3764 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3771 #undef FILL_IN_MESH_PARAM_IF_SET
3774 static int nl80211_parse_mesh_setup(struct genl_info *info,
3775 struct mesh_setup *setup)
3777 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3779 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3781 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3782 info->attrs[NL80211_ATTR_MESH_SETUP],
3783 nl80211_mesh_setup_params_policy))
3786 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3787 setup->sync_method =
3788 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3789 IEEE80211_SYNC_METHOD_VENDOR :
3790 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3792 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3793 setup->path_sel_proto =
3794 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3795 IEEE80211_PATH_PROTOCOL_VENDOR :
3796 IEEE80211_PATH_PROTOCOL_HWMP;
3798 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3799 setup->path_metric =
3800 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3801 IEEE80211_PATH_METRIC_VENDOR :
3802 IEEE80211_PATH_METRIC_AIRTIME;
3805 if (tb[NL80211_MESH_SETUP_IE]) {
3806 struct nlattr *ieattr =
3807 tb[NL80211_MESH_SETUP_IE];
3808 if (!is_valid_ie_attr(ieattr))
3810 setup->ie = nla_data(ieattr);
3811 setup->ie_len = nla_len(ieattr);
3813 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3814 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3819 static int nl80211_update_mesh_config(struct sk_buff *skb,
3820 struct genl_info *info)
3822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3823 struct net_device *dev = info->user_ptr[1];
3824 struct wireless_dev *wdev = dev->ieee80211_ptr;
3825 struct mesh_config cfg;
3829 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3832 if (!rdev->ops->update_mesh_config)
3835 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3840 if (!wdev->mesh_id_len)
3844 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3852 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3854 struct sk_buff *msg;
3856 struct nlattr *nl_reg_rules;
3860 mutex_lock(&cfg80211_mutex);
3862 if (!cfg80211_regdomain)
3865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3871 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3872 NL80211_CMD_GET_REG);
3876 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3877 cfg80211_regdomain->alpha2) ||
3878 (cfg80211_regdomain->dfs_region &&
3879 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3880 cfg80211_regdomain->dfs_region)))
3881 goto nla_put_failure;
3883 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3885 goto nla_put_failure;
3887 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3888 struct nlattr *nl_reg_rule;
3889 const struct ieee80211_reg_rule *reg_rule;
3890 const struct ieee80211_freq_range *freq_range;
3891 const struct ieee80211_power_rule *power_rule;
3893 reg_rule = &cfg80211_regdomain->reg_rules[i];
3894 freq_range = ®_rule->freq_range;
3895 power_rule = ®_rule->power_rule;
3897 nl_reg_rule = nla_nest_start(msg, i);
3899 goto nla_put_failure;
3901 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3903 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3904 freq_range->start_freq_khz) ||
3905 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3906 freq_range->end_freq_khz) ||
3907 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3908 freq_range->max_bandwidth_khz) ||
3909 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3910 power_rule->max_antenna_gain) ||
3911 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3912 power_rule->max_eirp))
3913 goto nla_put_failure;
3915 nla_nest_end(msg, nl_reg_rule);
3918 nla_nest_end(msg, nl_reg_rules);
3920 genlmsg_end(msg, hdr);
3921 err = genlmsg_reply(msg, info);
3925 genlmsg_cancel(msg, hdr);
3930 mutex_unlock(&cfg80211_mutex);
3934 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3936 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3937 struct nlattr *nl_reg_rule;
3938 char *alpha2 = NULL;
3939 int rem_reg_rules = 0, r = 0;
3940 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3942 struct ieee80211_regdomain *rd = NULL;
3944 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3947 if (!info->attrs[NL80211_ATTR_REG_RULES])
3950 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3952 if (info->attrs[NL80211_ATTR_DFS_REGION])
3953 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3955 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3958 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3962 mutex_lock(&cfg80211_mutex);
3964 if (!reg_is_valid_request(alpha2)) {
3969 size_of_regd = sizeof(struct ieee80211_regdomain) +
3970 (num_rules * sizeof(struct ieee80211_reg_rule));
3972 rd = kzalloc(size_of_regd, GFP_KERNEL);
3978 rd->n_reg_rules = num_rules;
3979 rd->alpha2[0] = alpha2[0];
3980 rd->alpha2[1] = alpha2[1];
3983 * Disable DFS master mode if the DFS region was
3984 * not supported or known on this kernel.
3986 if (reg_supported_dfs_region(dfs_region))
3987 rd->dfs_region = dfs_region;
3989 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3991 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3992 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3994 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4000 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4006 BUG_ON(rule_idx != num_rules);
4010 mutex_unlock(&cfg80211_mutex);
4015 mutex_unlock(&cfg80211_mutex);
4020 static int validate_scan_freqs(struct nlattr *freqs)
4022 struct nlattr *attr1, *attr2;
4023 int n_channels = 0, tmp1, tmp2;
4025 nla_for_each_nested(attr1, freqs, tmp1) {
4028 * Some hardware has a limited channel list for
4029 * scanning, and it is pretty much nonsensical
4030 * to scan for a channel twice, so disallow that
4031 * and don't require drivers to check that the
4032 * channel list they get isn't longer than what
4033 * they can scan, as long as they can scan all
4034 * the channels they registered at once.
4036 nla_for_each_nested(attr2, freqs, tmp2)
4037 if (attr1 != attr2 &&
4038 nla_get_u32(attr1) == nla_get_u32(attr2))
4045 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4048 struct net_device *dev = info->user_ptr[1];
4049 struct cfg80211_scan_request *request;
4050 struct nlattr *attr;
4051 struct wiphy *wiphy;
4052 int err, tmp, n_ssids = 0, n_channels, i;
4055 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4058 wiphy = &rdev->wiphy;
4060 if (!rdev->ops->scan)
4066 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4067 n_channels = validate_scan_freqs(
4068 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4072 enum ieee80211_band band;
4075 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4076 if (wiphy->bands[band])
4077 n_channels += wiphy->bands[band]->n_channels;
4080 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4081 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4084 if (n_ssids > wiphy->max_scan_ssids)
4087 if (info->attrs[NL80211_ATTR_IE])
4088 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4092 if (ie_len > wiphy->max_scan_ie_len)
4095 request = kzalloc(sizeof(*request)
4096 + sizeof(*request->ssids) * n_ssids
4097 + sizeof(*request->channels) * n_channels
4098 + ie_len, GFP_KERNEL);
4103 request->ssids = (void *)&request->channels[n_channels];
4104 request->n_ssids = n_ssids;
4107 request->ie = (void *)(request->ssids + n_ssids);
4109 request->ie = (void *)(request->channels + n_channels);
4113 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4114 /* user specified, bail out if channel not found */
4115 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4116 struct ieee80211_channel *chan;
4118 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4125 /* ignore disabled channels */
4126 if (chan->flags & IEEE80211_CHAN_DISABLED)
4129 request->channels[i] = chan;
4133 enum ieee80211_band band;
4136 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4138 if (!wiphy->bands[band])
4140 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4141 struct ieee80211_channel *chan;
4143 chan = &wiphy->bands[band]->channels[j];
4145 if (chan->flags & IEEE80211_CHAN_DISABLED)
4148 request->channels[i] = chan;
4159 request->n_channels = i;
4162 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4163 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4164 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4168 request->ssids[i].ssid_len = nla_len(attr);
4169 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4174 if (info->attrs[NL80211_ATTR_IE]) {
4175 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4176 memcpy((void *)request->ie,
4177 nla_data(info->attrs[NL80211_ATTR_IE]),
4181 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4182 if (wiphy->bands[i])
4184 (1 << wiphy->bands[i]->n_bitrates) - 1;
4186 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4187 nla_for_each_nested(attr,
4188 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4190 enum ieee80211_band band = nla_type(attr);
4192 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4196 err = ieee80211_get_ratemask(wiphy->bands[band],
4199 &request->rates[band]);
4206 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4209 request->wiphy = &rdev->wiphy;
4211 rdev->scan_req = request;
4212 err = rdev->ops->scan(&rdev->wiphy, dev, request);
4215 nl80211_send_scan_start(rdev, dev);
4219 rdev->scan_req = NULL;
4226 static int nl80211_start_sched_scan(struct sk_buff *skb,
4227 struct genl_info *info)
4229 struct cfg80211_sched_scan_request *request;
4230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4231 struct net_device *dev = info->user_ptr[1];
4232 struct nlattr *attr;
4233 struct wiphy *wiphy;
4234 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4236 enum ieee80211_band band;
4238 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4240 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4241 !rdev->ops->sched_scan_start)
4244 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4247 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4250 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4254 wiphy = &rdev->wiphy;
4256 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4257 n_channels = validate_scan_freqs(
4258 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4264 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4265 if (wiphy->bands[band])
4266 n_channels += wiphy->bands[band]->n_channels;
4269 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4270 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4274 if (n_ssids > wiphy->max_sched_scan_ssids)
4277 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4278 nla_for_each_nested(attr,
4279 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4283 if (n_match_sets > wiphy->max_match_sets)
4286 if (info->attrs[NL80211_ATTR_IE])
4287 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4291 if (ie_len > wiphy->max_sched_scan_ie_len)
4294 mutex_lock(&rdev->sched_scan_mtx);
4296 if (rdev->sched_scan_req) {
4301 request = kzalloc(sizeof(*request)
4302 + sizeof(*request->ssids) * n_ssids
4303 + sizeof(*request->match_sets) * n_match_sets
4304 + sizeof(*request->channels) * n_channels
4305 + ie_len, GFP_KERNEL);
4312 request->ssids = (void *)&request->channels[n_channels];
4313 request->n_ssids = n_ssids;
4316 request->ie = (void *)(request->ssids + n_ssids);
4318 request->ie = (void *)(request->channels + n_channels);
4323 request->match_sets = (void *)(request->ie + ie_len);
4324 else if (request->ssids)
4325 request->match_sets =
4326 (void *)(request->ssids + n_ssids);
4328 request->match_sets =
4329 (void *)(request->channels + n_channels);
4331 request->n_match_sets = n_match_sets;
4334 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4335 /* user specified, bail out if channel not found */
4336 nla_for_each_nested(attr,
4337 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4339 struct ieee80211_channel *chan;
4341 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4348 /* ignore disabled channels */
4349 if (chan->flags & IEEE80211_CHAN_DISABLED)
4352 request->channels[i] = chan;
4357 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4359 if (!wiphy->bands[band])
4361 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4362 struct ieee80211_channel *chan;
4364 chan = &wiphy->bands[band]->channels[j];
4366 if (chan->flags & IEEE80211_CHAN_DISABLED)
4369 request->channels[i] = chan;
4380 request->n_channels = i;
4383 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4384 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4386 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4390 request->ssids[i].ssid_len = nla_len(attr);
4391 memcpy(request->ssids[i].ssid, nla_data(attr),
4398 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4399 nla_for_each_nested(attr,
4400 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4402 struct nlattr *ssid, *rssi;
4404 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4405 nla_data(attr), nla_len(attr),
4406 nl80211_match_policy);
4407 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4409 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4413 memcpy(request->match_sets[i].ssid.ssid,
4414 nla_data(ssid), nla_len(ssid));
4415 request->match_sets[i].ssid.ssid_len =
4418 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4420 request->rssi_thold = nla_get_u32(rssi);
4422 request->rssi_thold =
4423 NL80211_SCAN_RSSI_THOLD_OFF;
4428 if (info->attrs[NL80211_ATTR_IE]) {
4429 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4430 memcpy((void *)request->ie,
4431 nla_data(info->attrs[NL80211_ATTR_IE]),
4436 request->wiphy = &rdev->wiphy;
4437 request->interval = interval;
4439 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4441 rdev->sched_scan_req = request;
4442 nl80211_send_sched_scan(rdev, dev,
4443 NL80211_CMD_START_SCHED_SCAN);
4450 mutex_unlock(&rdev->sched_scan_mtx);
4454 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4455 struct genl_info *info)
4457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4460 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4461 !rdev->ops->sched_scan_stop)
4464 mutex_lock(&rdev->sched_scan_mtx);
4465 err = __cfg80211_stop_sched_scan(rdev, false);
4466 mutex_unlock(&rdev->sched_scan_mtx);
4471 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4473 struct cfg80211_registered_device *rdev,
4474 struct wireless_dev *wdev,
4475 struct cfg80211_internal_bss *intbss)
4477 struct cfg80211_bss *res = &intbss->pub;
4481 ASSERT_WDEV_LOCK(wdev);
4483 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4484 NL80211_CMD_NEW_SCAN_RESULTS);
4488 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4490 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4491 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4492 goto nla_put_failure;
4494 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4496 goto nla_put_failure;
4497 if ((!is_zero_ether_addr(res->bssid) &&
4498 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4499 (res->information_elements && res->len_information_elements &&
4500 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4501 res->len_information_elements,
4502 res->information_elements)) ||
4503 (res->beacon_ies && res->len_beacon_ies &&
4504 res->beacon_ies != res->information_elements &&
4505 nla_put(msg, NL80211_BSS_BEACON_IES,
4506 res->len_beacon_ies, res->beacon_ies)))
4507 goto nla_put_failure;
4509 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4510 goto nla_put_failure;
4511 if (res->beacon_interval &&
4512 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4513 goto nla_put_failure;
4514 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4515 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4516 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4517 jiffies_to_msecs(jiffies - intbss->ts)))
4518 goto nla_put_failure;
4520 switch (rdev->wiphy.signal_type) {
4521 case CFG80211_SIGNAL_TYPE_MBM:
4522 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4523 goto nla_put_failure;
4525 case CFG80211_SIGNAL_TYPE_UNSPEC:
4526 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4527 goto nla_put_failure;
4533 switch (wdev->iftype) {
4534 case NL80211_IFTYPE_P2P_CLIENT:
4535 case NL80211_IFTYPE_STATION:
4536 if (intbss == wdev->current_bss &&
4537 nla_put_u32(msg, NL80211_BSS_STATUS,
4538 NL80211_BSS_STATUS_ASSOCIATED))
4539 goto nla_put_failure;
4541 case NL80211_IFTYPE_ADHOC:
4542 if (intbss == wdev->current_bss &&
4543 nla_put_u32(msg, NL80211_BSS_STATUS,
4544 NL80211_BSS_STATUS_IBSS_JOINED))
4545 goto nla_put_failure;
4551 nla_nest_end(msg, bss);
4553 return genlmsg_end(msg, hdr);
4556 genlmsg_cancel(msg, hdr);
4560 static int nl80211_dump_scan(struct sk_buff *skb,
4561 struct netlink_callback *cb)
4563 struct cfg80211_registered_device *rdev;
4564 struct net_device *dev;
4565 struct cfg80211_internal_bss *scan;
4566 struct wireless_dev *wdev;
4567 int start = cb->args[1], idx = 0;
4570 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4574 wdev = dev->ieee80211_ptr;
4577 spin_lock_bh(&rdev->bss_lock);
4578 cfg80211_bss_expire(rdev);
4580 cb->seq = rdev->bss_generation;
4582 list_for_each_entry(scan, &rdev->bss_list, list) {
4585 if (nl80211_send_bss(skb, cb,
4586 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4587 rdev, wdev, scan) < 0) {
4593 spin_unlock_bh(&rdev->bss_lock);
4597 nl80211_finish_netdev_dump(rdev);
4602 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4603 int flags, struct net_device *dev,
4604 struct survey_info *survey)
4607 struct nlattr *infoattr;
4609 hdr = nl80211hdr_put(msg, pid, seq, flags,
4610 NL80211_CMD_NEW_SURVEY_RESULTS);
4614 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4615 goto nla_put_failure;
4617 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4619 goto nla_put_failure;
4621 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4622 survey->channel->center_freq))
4623 goto nla_put_failure;
4625 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4626 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4627 goto nla_put_failure;
4628 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4629 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4630 goto nla_put_failure;
4631 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4632 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4633 survey->channel_time))
4634 goto nla_put_failure;
4635 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4636 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4637 survey->channel_time_busy))
4638 goto nla_put_failure;
4639 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4640 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4641 survey->channel_time_ext_busy))
4642 goto nla_put_failure;
4643 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4644 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4645 survey->channel_time_rx))
4646 goto nla_put_failure;
4647 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4648 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4649 survey->channel_time_tx))
4650 goto nla_put_failure;
4652 nla_nest_end(msg, infoattr);
4654 return genlmsg_end(msg, hdr);
4657 genlmsg_cancel(msg, hdr);
4661 static int nl80211_dump_survey(struct sk_buff *skb,
4662 struct netlink_callback *cb)
4664 struct survey_info survey;
4665 struct cfg80211_registered_device *dev;
4666 struct net_device *netdev;
4667 int survey_idx = cb->args[1];
4670 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4674 if (!dev->ops->dump_survey) {
4680 struct ieee80211_channel *chan;
4682 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4689 /* Survey without a channel doesn't make sense */
4690 if (!survey.channel) {
4695 chan = ieee80211_get_channel(&dev->wiphy,
4696 survey.channel->center_freq);
4697 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4702 if (nl80211_send_survey(skb,
4703 NETLINK_CB(cb->skb).pid,
4704 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4712 cb->args[1] = survey_idx;
4715 nl80211_finish_netdev_dump(dev);
4719 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4721 return auth_type <= NL80211_AUTHTYPE_MAX;
4724 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4726 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4727 NL80211_WPA_VERSION_2));
4730 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4733 struct net_device *dev = info->user_ptr[1];
4734 struct ieee80211_channel *chan;
4735 const u8 *bssid, *ssid, *ie = NULL;
4736 int err, ssid_len, ie_len = 0;
4737 enum nl80211_auth_type auth_type;
4738 struct key_parse key;
4739 bool local_state_change;
4741 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4744 if (!info->attrs[NL80211_ATTR_MAC])
4747 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4750 if (!info->attrs[NL80211_ATTR_SSID])
4753 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4756 err = nl80211_parse_key(info, &key);
4761 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4763 if (!key.p.key || !key.p.key_len)
4765 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4766 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4767 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4768 key.p.key_len != WLAN_KEY_LEN_WEP104))
4780 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4781 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4790 if (!rdev->ops->auth)
4793 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4794 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4797 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4798 chan = ieee80211_get_channel(&rdev->wiphy,
4799 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4800 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4803 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4804 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4806 if (info->attrs[NL80211_ATTR_IE]) {
4807 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4808 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4811 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4812 if (!nl80211_valid_auth_type(auth_type))
4815 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4818 * Since we no longer track auth state, ignore
4819 * requests to only change local state.
4821 if (local_state_change)
4824 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4825 ssid, ssid_len, ie, ie_len,
4826 key.p.key, key.p.key_len, key.idx);
4829 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4830 struct genl_info *info,
4831 struct cfg80211_crypto_settings *settings,
4834 memset(settings, 0, sizeof(*settings));
4836 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4838 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4840 proto = nla_get_u16(
4841 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4842 settings->control_port_ethertype = cpu_to_be16(proto);
4843 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4846 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4847 settings->control_port_no_encrypt = true;
4849 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4851 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4855 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4856 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4857 settings->n_ciphers_pairwise = len / sizeof(u32);
4859 if (len % sizeof(u32))
4862 if (settings->n_ciphers_pairwise > cipher_limit)
4865 memcpy(settings->ciphers_pairwise, data, len);
4867 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4868 if (!cfg80211_supported_cipher_suite(
4870 settings->ciphers_pairwise[i]))
4874 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4875 settings->cipher_group =
4876 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4877 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4878 settings->cipher_group))
4882 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4883 settings->wpa_versions =
4884 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4885 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4889 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4893 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4894 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4895 settings->n_akm_suites = len / sizeof(u32);
4897 if (len % sizeof(u32))
4900 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4903 memcpy(settings->akm_suites, data, len);
4909 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4912 struct net_device *dev = info->user_ptr[1];
4913 struct cfg80211_crypto_settings crypto;
4914 struct ieee80211_channel *chan;
4915 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4916 int err, ssid_len, ie_len = 0;
4917 bool use_mfp = false;
4919 struct ieee80211_ht_cap *ht_capa = NULL;
4920 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4922 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4925 if (!info->attrs[NL80211_ATTR_MAC] ||
4926 !info->attrs[NL80211_ATTR_SSID] ||
4927 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4930 if (!rdev->ops->assoc)
4933 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4934 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4937 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4939 chan = ieee80211_get_channel(&rdev->wiphy,
4940 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4941 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4944 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4945 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4947 if (info->attrs[NL80211_ATTR_IE]) {
4948 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4949 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4952 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4953 enum nl80211_mfp mfp =
4954 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4955 if (mfp == NL80211_MFP_REQUIRED)
4957 else if (mfp != NL80211_MFP_NO)
4961 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4962 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4964 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4965 flags |= ASSOC_REQ_DISABLE_HT;
4967 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4969 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4971 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4974 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4977 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4979 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4980 ssid, ssid_len, ie, ie_len, use_mfp,
4981 &crypto, flags, ht_capa,
4987 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4990 struct net_device *dev = info->user_ptr[1];
4991 const u8 *ie = NULL, *bssid;
4994 bool local_state_change;
4996 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4999 if (!info->attrs[NL80211_ATTR_MAC])
5002 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5005 if (!rdev->ops->deauth)
5008 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5009 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5012 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5014 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5015 if (reason_code == 0) {
5016 /* Reason Code 0 is reserved */
5020 if (info->attrs[NL80211_ATTR_IE]) {
5021 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5022 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5025 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5027 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5028 local_state_change);
5031 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5034 struct net_device *dev = info->user_ptr[1];
5035 const u8 *ie = NULL, *bssid;
5038 bool local_state_change;
5040 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5043 if (!info->attrs[NL80211_ATTR_MAC])
5046 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5049 if (!rdev->ops->disassoc)
5052 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5053 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5056 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5058 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5059 if (reason_code == 0) {
5060 /* Reason Code 0 is reserved */
5064 if (info->attrs[NL80211_ATTR_IE]) {
5065 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5066 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5069 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5071 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5072 local_state_change);
5076 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5077 int mcast_rate[IEEE80211_NUM_BANDS],
5080 struct wiphy *wiphy = &rdev->wiphy;
5084 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5085 struct ieee80211_supported_band *sband;
5087 sband = wiphy->bands[band];
5091 for (i = 0; i < sband->n_bitrates; i++) {
5092 if (sband->bitrates[i].bitrate == rateval) {
5093 mcast_rate[band] = i + 1;
5103 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5106 struct net_device *dev = info->user_ptr[1];
5107 struct cfg80211_ibss_params ibss;
5108 struct wiphy *wiphy;
5109 struct cfg80211_cached_keys *connkeys = NULL;
5112 memset(&ibss, 0, sizeof(ibss));
5114 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5117 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5118 !info->attrs[NL80211_ATTR_SSID] ||
5119 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5122 ibss.beacon_interval = 100;
5124 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5125 ibss.beacon_interval =
5126 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5127 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5131 if (!rdev->ops->join_ibss)
5134 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5137 wiphy = &rdev->wiphy;
5139 if (info->attrs[NL80211_ATTR_MAC]) {
5140 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5142 if (!is_valid_ether_addr(ibss.bssid))
5145 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5146 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5148 if (info->attrs[NL80211_ATTR_IE]) {
5149 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5150 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5153 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5154 enum nl80211_channel_type channel_type;
5156 if (!nl80211_valid_channel_type(info, &channel_type))
5159 if (channel_type != NL80211_CHAN_NO_HT &&
5160 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5163 ibss.channel_type = channel_type;
5165 ibss.channel_type = NL80211_CHAN_NO_HT;
5168 ibss.channel = rdev_freq_to_chan(rdev,
5169 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5171 if (!ibss.channel ||
5172 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5173 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5176 /* Both channels should be able to initiate communication */
5177 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5178 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5179 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5183 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5184 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5186 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5188 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5190 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5191 struct ieee80211_supported_band *sband =
5192 wiphy->bands[ibss.channel->band];
5194 err = ieee80211_get_ratemask(sband, rates, n_rates,
5200 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5201 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5202 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5205 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5206 connkeys = nl80211_parse_connkeys(rdev,
5207 info->attrs[NL80211_ATTR_KEYS]);
5208 if (IS_ERR(connkeys))
5209 return PTR_ERR(connkeys);
5213 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5215 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5221 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5224 struct net_device *dev = info->user_ptr[1];
5226 if (!rdev->ops->leave_ibss)
5229 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5232 return cfg80211_leave_ibss(rdev, dev, false);
5235 #ifdef CONFIG_NL80211_TESTMODE
5236 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5240 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5242 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5245 if (!info->attrs[NL80211_ATTR_TESTDATA])
5249 if (rdev->ops->testmode_cmd) {
5250 rdev->testmode_info = info;
5251 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5252 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5253 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5254 rdev->testmode_info = NULL;
5260 static int nl80211_testmode_dump(struct sk_buff *skb,
5261 struct netlink_callback *cb)
5263 struct cfg80211_registered_device *rdev;
5271 * 0 is a valid index, but not valid for args[0],
5272 * so we need to offset by 1.
5274 phy_idx = cb->args[0] - 1;
5276 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5277 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5282 mutex_lock(&cfg80211_mutex);
5283 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5284 nl80211_fam.attrbuf);
5286 mutex_unlock(&cfg80211_mutex);
5287 return PTR_ERR(rdev);
5289 phy_idx = rdev->wiphy_idx;
5291 mutex_unlock(&cfg80211_mutex);
5293 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5295 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5299 data = nla_data((void *)cb->args[1]);
5300 data_len = nla_len((void *)cb->args[1]);
5303 mutex_lock(&cfg80211_mutex);
5304 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5306 mutex_unlock(&cfg80211_mutex);
5309 cfg80211_lock_rdev(rdev);
5310 mutex_unlock(&cfg80211_mutex);
5312 if (!rdev->ops->testmode_dump) {
5318 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5319 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5320 NL80211_CMD_TESTMODE);
5321 struct nlattr *tmdata;
5323 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5324 genlmsg_cancel(skb, hdr);
5328 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5330 genlmsg_cancel(skb, hdr);
5333 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5335 nla_nest_end(skb, tmdata);
5337 if (err == -ENOBUFS || err == -ENOENT) {
5338 genlmsg_cancel(skb, hdr);
5341 genlmsg_cancel(skb, hdr);
5345 genlmsg_end(skb, hdr);
5350 cb->args[0] = phy_idx + 1;
5352 cfg80211_unlock_rdev(rdev);
5356 static struct sk_buff *
5357 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5358 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5360 struct sk_buff *skb;
5362 struct nlattr *data;
5364 skb = nlmsg_new(approxlen + 100, gfp);
5368 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5374 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5375 goto nla_put_failure;
5376 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5378 ((void **)skb->cb)[0] = rdev;
5379 ((void **)skb->cb)[1] = hdr;
5380 ((void **)skb->cb)[2] = data;
5389 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5392 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5394 if (WARN_ON(!rdev->testmode_info))
5397 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5398 rdev->testmode_info->snd_pid,
5399 rdev->testmode_info->snd_seq,
5402 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5404 int cfg80211_testmode_reply(struct sk_buff *skb)
5406 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5407 void *hdr = ((void **)skb->cb)[1];
5408 struct nlattr *data = ((void **)skb->cb)[2];
5410 if (WARN_ON(!rdev->testmode_info)) {
5415 nla_nest_end(skb, data);
5416 genlmsg_end(skb, hdr);
5417 return genlmsg_reply(skb, rdev->testmode_info);
5419 EXPORT_SYMBOL(cfg80211_testmode_reply);
5421 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5422 int approxlen, gfp_t gfp)
5424 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5426 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5428 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5430 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5432 void *hdr = ((void **)skb->cb)[1];
5433 struct nlattr *data = ((void **)skb->cb)[2];
5435 nla_nest_end(skb, data);
5436 genlmsg_end(skb, hdr);
5437 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5439 EXPORT_SYMBOL(cfg80211_testmode_event);
5442 static int nl80211_connect(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];
5446 struct cfg80211_connect_params connect;
5447 struct wiphy *wiphy;
5448 struct cfg80211_cached_keys *connkeys = NULL;
5451 memset(&connect, 0, sizeof(connect));
5453 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5456 if (!info->attrs[NL80211_ATTR_SSID] ||
5457 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5460 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5462 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5463 if (!nl80211_valid_auth_type(connect.auth_type))
5466 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5468 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5470 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5471 NL80211_MAX_NR_CIPHER_SUITES);
5475 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5476 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5479 wiphy = &rdev->wiphy;
5481 connect.bg_scan_period = -1;
5482 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5483 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5484 connect.bg_scan_period =
5485 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5488 if (info->attrs[NL80211_ATTR_MAC])
5489 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5490 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5491 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5493 if (info->attrs[NL80211_ATTR_IE]) {
5494 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5495 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5498 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5500 ieee80211_get_channel(wiphy,
5501 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5502 if (!connect.channel ||
5503 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5507 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5508 connkeys = nl80211_parse_connkeys(rdev,
5509 info->attrs[NL80211_ATTR_KEYS]);
5510 if (IS_ERR(connkeys))
5511 return PTR_ERR(connkeys);
5514 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5515 connect.flags |= ASSOC_REQ_DISABLE_HT;
5517 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5518 memcpy(&connect.ht_capa_mask,
5519 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5520 sizeof(connect.ht_capa_mask));
5522 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5523 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5525 memcpy(&connect.ht_capa,
5526 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5527 sizeof(connect.ht_capa));
5530 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5536 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5538 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5539 struct net_device *dev = info->user_ptr[1];
5542 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5543 reason = WLAN_REASON_DEAUTH_LEAVING;
5545 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5550 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5551 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5554 return cfg80211_disconnect(rdev, dev, reason, true);
5557 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5564 if (!info->attrs[NL80211_ATTR_PID])
5567 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5569 net = get_net_ns_by_pid(pid);
5571 return PTR_ERR(net);
5575 /* check if anything to do */
5576 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5577 err = cfg80211_switch_netns(rdev, net);
5583 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5586 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5587 struct cfg80211_pmksa *pmksa) = NULL;
5588 struct net_device *dev = info->user_ptr[1];
5589 struct cfg80211_pmksa pmksa;
5591 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5593 if (!info->attrs[NL80211_ATTR_MAC])
5596 if (!info->attrs[NL80211_ATTR_PMKID])
5599 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5600 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5603 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5606 switch (info->genlhdr->cmd) {
5607 case NL80211_CMD_SET_PMKSA:
5608 rdev_ops = rdev->ops->set_pmksa;
5610 case NL80211_CMD_DEL_PMKSA:
5611 rdev_ops = rdev->ops->del_pmksa;
5621 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5624 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5627 struct net_device *dev = info->user_ptr[1];
5629 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5630 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5633 if (!rdev->ops->flush_pmksa)
5636 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5639 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5641 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5642 struct net_device *dev = info->user_ptr[1];
5643 u8 action_code, dialog_token;
5647 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5648 !rdev->ops->tdls_mgmt)
5651 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5652 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5653 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5654 !info->attrs[NL80211_ATTR_IE] ||
5655 !info->attrs[NL80211_ATTR_MAC])
5658 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5659 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5660 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5661 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5663 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5664 dialog_token, status_code,
5665 nla_data(info->attrs[NL80211_ATTR_IE]),
5666 nla_len(info->attrs[NL80211_ATTR_IE]));
5669 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5671 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5672 struct net_device *dev = info->user_ptr[1];
5673 enum nl80211_tdls_operation operation;
5676 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5677 !rdev->ops->tdls_oper)
5680 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5681 !info->attrs[NL80211_ATTR_MAC])
5684 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5685 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5687 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5690 static int nl80211_remain_on_channel(struct sk_buff *skb,
5691 struct genl_info *info)
5693 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5694 struct net_device *dev = info->user_ptr[1];
5695 struct ieee80211_channel *chan;
5696 struct sk_buff *msg;
5699 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5703 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5704 !info->attrs[NL80211_ATTR_DURATION])
5707 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5709 if (!rdev->ops->remain_on_channel ||
5710 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5714 * We should be on that channel for at least a minimum amount of
5715 * time (10ms) but no longer than the driver supports.
5717 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5718 duration > rdev->wiphy.max_remain_on_channel_duration)
5721 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5722 !nl80211_valid_channel_type(info, &channel_type))
5725 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5726 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5730 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5734 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5735 NL80211_CMD_REMAIN_ON_CHANNEL);
5742 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5743 channel_type, duration, &cookie);
5748 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5749 goto nla_put_failure;
5751 genlmsg_end(msg, hdr);
5753 return genlmsg_reply(msg, info);
5762 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5763 struct genl_info *info)
5765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5766 struct net_device *dev = info->user_ptr[1];
5769 if (!info->attrs[NL80211_ATTR_COOKIE])
5772 if (!rdev->ops->cancel_remain_on_channel)
5775 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5777 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5780 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5781 u8 *rates, u8 rates_len)
5786 for (i = 0; i < rates_len; i++) {
5787 int rate = (rates[i] & 0x7f) * 5;
5789 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5790 struct ieee80211_rate *srate =
5791 &sband->bitrates[ridx];
5792 if (rate == srate->bitrate) {
5797 if (ridx == sband->n_bitrates)
5798 return 0; /* rate not found */
5804 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5805 u8 *rates, u8 rates_len,
5806 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5810 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5812 for (i = 0; i < rates_len; i++) {
5815 ridx = rates[i] / 8;
5816 rbit = BIT(rates[i] % 8);
5818 /* check validity */
5819 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5822 /* check availability */
5823 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5832 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5833 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5834 .len = NL80211_MAX_SUPP_RATES },
5835 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5836 .len = NL80211_MAX_SUPP_HT_RATES },
5839 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5840 struct genl_info *info)
5842 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5844 struct cfg80211_bitrate_mask mask;
5846 struct net_device *dev = info->user_ptr[1];
5847 struct nlattr *tx_rates;
5848 struct ieee80211_supported_band *sband;
5850 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5853 if (!rdev->ops->set_bitrate_mask)
5856 memset(&mask, 0, sizeof(mask));
5857 /* Default to all rates enabled */
5858 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5859 sband = rdev->wiphy.bands[i];
5860 mask.control[i].legacy =
5861 sband ? (1 << sband->n_bitrates) - 1 : 0;
5863 memcpy(mask.control[i].mcs,
5864 sband->ht_cap.mcs.rx_mask,
5865 sizeof(mask.control[i].mcs));
5867 memset(mask.control[i].mcs, 0,
5868 sizeof(mask.control[i].mcs));
5872 * The nested attribute uses enum nl80211_band as the index. This maps
5873 * directly to the enum ieee80211_band values used in cfg80211.
5875 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5876 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5878 enum ieee80211_band band = nla_type(tx_rates);
5879 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5881 sband = rdev->wiphy.bands[band];
5884 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5885 nla_len(tx_rates), nl80211_txattr_policy);
5886 if (tb[NL80211_TXRATE_LEGACY]) {
5887 mask.control[band].legacy = rateset_to_mask(
5889 nla_data(tb[NL80211_TXRATE_LEGACY]),
5890 nla_len(tb[NL80211_TXRATE_LEGACY]));
5891 if ((mask.control[band].legacy == 0) &&
5892 nla_len(tb[NL80211_TXRATE_LEGACY]))
5895 if (tb[NL80211_TXRATE_MCS]) {
5896 if (!ht_rateset_to_mask(
5898 nla_data(tb[NL80211_TXRATE_MCS]),
5899 nla_len(tb[NL80211_TXRATE_MCS]),
5900 mask.control[band].mcs))
5904 if (mask.control[band].legacy == 0) {
5905 /* don't allow empty legacy rates if HT
5906 * is not even supported. */
5907 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5910 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5911 if (mask.control[band].mcs[i])
5914 /* legacy and mcs rates may not be both empty */
5915 if (i == IEEE80211_HT_MCS_MASK_LEN)
5920 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5923 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5926 struct net_device *dev = info->user_ptr[1];
5927 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5929 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5932 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5933 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5935 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5936 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5938 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5939 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5940 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5941 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5944 /* not much point in registering if we can't reply */
5945 if (!rdev->ops->mgmt_tx)
5948 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5950 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5951 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5954 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5957 struct net_device *dev = info->user_ptr[1];
5958 struct ieee80211_channel *chan;
5959 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5960 bool channel_type_valid = false;
5965 struct sk_buff *msg = NULL;
5966 unsigned int wait = 0;
5967 bool offchan, no_cck, dont_wait_for_ack;
5969 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5971 if (!info->attrs[NL80211_ATTR_FRAME] ||
5972 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5975 if (!rdev->ops->mgmt_tx)
5978 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5979 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5980 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5981 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5982 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5983 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5984 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5987 if (info->attrs[NL80211_ATTR_DURATION]) {
5988 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5990 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5993 * We should wait on the channel for at least a minimum amount
5994 * of time (10ms) but no longer than the driver supports.
5996 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5997 wait > rdev->wiphy.max_remain_on_channel_duration)
6002 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
6003 if (!nl80211_valid_channel_type(info, &channel_type))
6005 channel_type_valid = true;
6008 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6010 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6013 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6015 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6016 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6020 if (!dont_wait_for_ack) {
6021 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6025 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6034 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6035 channel_type_valid, wait,
6036 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6037 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6038 no_cck, dont_wait_for_ack, &cookie);
6043 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6044 goto nla_put_failure;
6046 genlmsg_end(msg, hdr);
6047 return genlmsg_reply(msg, info);
6059 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6062 struct net_device *dev = info->user_ptr[1];
6065 if (!info->attrs[NL80211_ATTR_COOKIE])
6068 if (!rdev->ops->mgmt_tx_cancel_wait)
6071 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6072 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6073 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6074 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6075 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6076 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6079 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6081 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6084 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6086 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6087 struct wireless_dev *wdev;
6088 struct net_device *dev = info->user_ptr[1];
6093 if (!info->attrs[NL80211_ATTR_PS_STATE])
6096 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6098 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6101 wdev = dev->ieee80211_ptr;
6103 if (!rdev->ops->set_power_mgmt)
6106 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6108 if (state == wdev->ps)
6111 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6118 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6121 enum nl80211_ps_state ps_state;
6122 struct wireless_dev *wdev;
6123 struct net_device *dev = info->user_ptr[1];
6124 struct sk_buff *msg;
6128 wdev = dev->ieee80211_ptr;
6130 if (!rdev->ops->set_power_mgmt)
6133 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6137 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6138 NL80211_CMD_GET_POWER_SAVE);
6145 ps_state = NL80211_PS_ENABLED;
6147 ps_state = NL80211_PS_DISABLED;
6149 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6150 goto nla_put_failure;
6152 genlmsg_end(msg, hdr);
6153 return genlmsg_reply(msg, info);
6162 static struct nla_policy
6163 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6164 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6165 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6166 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6169 static int nl80211_set_cqm_rssi(struct genl_info *info,
6170 s32 threshold, u32 hysteresis)
6172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6173 struct wireless_dev *wdev;
6174 struct net_device *dev = info->user_ptr[1];
6179 wdev = dev->ieee80211_ptr;
6181 if (!rdev->ops->set_cqm_rssi_config)
6184 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6185 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6188 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6189 threshold, hysteresis);
6192 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6194 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6198 cqm = info->attrs[NL80211_ATTR_CQM];
6204 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6205 nl80211_attr_cqm_policy);
6209 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6210 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6213 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6214 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6215 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6223 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6226 struct net_device *dev = info->user_ptr[1];
6227 struct mesh_config cfg;
6228 struct mesh_setup setup;
6231 /* start with default */
6232 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6233 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6235 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6236 /* and parse parameters if given */
6237 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6242 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6243 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6246 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6247 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6249 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6250 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6251 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6254 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6255 /* parse additional setup parameters if given */
6256 err = nl80211_parse_mesh_setup(info, &setup);
6261 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6262 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6264 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6265 !nl80211_valid_channel_type(info, &channel_type))
6268 setup.channel = rdev_freq_to_chan(rdev,
6269 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6273 setup.channel_type = channel_type;
6275 /* cfg80211_join_mesh() will sort it out */
6276 setup.channel = NULL;
6279 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6282 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6285 struct net_device *dev = info->user_ptr[1];
6287 return cfg80211_leave_mesh(rdev, dev);
6291 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6294 struct sk_buff *msg;
6297 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6300 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6304 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6305 NL80211_CMD_GET_WOWLAN);
6307 goto nla_put_failure;
6310 struct nlattr *nl_wowlan;
6312 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6314 goto nla_put_failure;
6316 if ((rdev->wowlan->any &&
6317 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6318 (rdev->wowlan->disconnect &&
6319 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6320 (rdev->wowlan->magic_pkt &&
6321 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6322 (rdev->wowlan->gtk_rekey_failure &&
6323 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6324 (rdev->wowlan->eap_identity_req &&
6325 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6326 (rdev->wowlan->four_way_handshake &&
6327 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6328 (rdev->wowlan->rfkill_release &&
6329 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6330 goto nla_put_failure;
6331 if (rdev->wowlan->n_patterns) {
6332 struct nlattr *nl_pats, *nl_pat;
6335 nl_pats = nla_nest_start(msg,
6336 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6338 goto nla_put_failure;
6340 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6341 nl_pat = nla_nest_start(msg, i + 1);
6343 goto nla_put_failure;
6344 pat_len = rdev->wowlan->patterns[i].pattern_len;
6345 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6346 DIV_ROUND_UP(pat_len, 8),
6347 rdev->wowlan->patterns[i].mask) ||
6348 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6350 rdev->wowlan->patterns[i].pattern))
6351 goto nla_put_failure;
6352 nla_nest_end(msg, nl_pat);
6354 nla_nest_end(msg, nl_pats);
6357 nla_nest_end(msg, nl_wowlan);
6360 genlmsg_end(msg, hdr);
6361 return genlmsg_reply(msg, info);
6368 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6371 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6372 struct cfg80211_wowlan no_triggers = {};
6373 struct cfg80211_wowlan new_triggers = {};
6374 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6376 bool prev_enabled = rdev->wowlan;
6378 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6381 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6384 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6385 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6386 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6387 nl80211_wowlan_policy);
6391 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6392 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6394 new_triggers.any = true;
6397 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6398 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6400 new_triggers.disconnect = true;
6403 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6404 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6406 new_triggers.magic_pkt = true;
6409 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6412 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6413 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6415 new_triggers.gtk_rekey_failure = true;
6418 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6419 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6421 new_triggers.eap_identity_req = true;
6424 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6425 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6427 new_triggers.four_way_handshake = true;
6430 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6431 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6433 new_triggers.rfkill_release = true;
6436 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6439 int rem, pat_len, mask_len;
6440 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6442 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6445 if (n_patterns > wowlan->n_patterns)
6448 new_triggers.patterns = kcalloc(n_patterns,
6449 sizeof(new_triggers.patterns[0]),
6451 if (!new_triggers.patterns)
6454 new_triggers.n_patterns = n_patterns;
6457 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6459 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6460 nla_data(pat), nla_len(pat), NULL);
6462 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6463 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6465 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6466 mask_len = DIV_ROUND_UP(pat_len, 8);
6467 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6470 if (pat_len > wowlan->pattern_max_len ||
6471 pat_len < wowlan->pattern_min_len)
6474 new_triggers.patterns[i].mask =
6475 kmalloc(mask_len + pat_len, GFP_KERNEL);
6476 if (!new_triggers.patterns[i].mask) {
6480 new_triggers.patterns[i].pattern =
6481 new_triggers.patterns[i].mask + mask_len;
6482 memcpy(new_triggers.patterns[i].mask,
6483 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6485 new_triggers.patterns[i].pattern_len = pat_len;
6486 memcpy(new_triggers.patterns[i].pattern,
6487 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6493 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6494 struct cfg80211_wowlan *ntrig;
6495 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6501 cfg80211_rdev_free_wowlan(rdev);
6502 rdev->wowlan = ntrig;
6505 cfg80211_rdev_free_wowlan(rdev);
6506 rdev->wowlan = NULL;
6509 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6510 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6514 for (i = 0; i < new_triggers.n_patterns; i++)
6515 kfree(new_triggers.patterns[i].mask);
6516 kfree(new_triggers.patterns);
6521 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6524 struct net_device *dev = info->user_ptr[1];
6525 struct wireless_dev *wdev = dev->ieee80211_ptr;
6526 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6527 struct cfg80211_gtk_rekey_data rekey_data;
6530 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6533 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6534 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6535 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6536 nl80211_rekey_policy);
6540 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6542 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6544 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6547 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6549 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6551 memcpy(rekey_data.replay_ctr,
6552 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6553 NL80211_REPLAY_CTR_LEN);
6556 if (!wdev->current_bss) {
6561 if (!rdev->ops->set_rekey_data) {
6566 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6572 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6573 struct genl_info *info)
6575 struct net_device *dev = info->user_ptr[1];
6576 struct wireless_dev *wdev = dev->ieee80211_ptr;
6578 if (wdev->iftype != NL80211_IFTYPE_AP &&
6579 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6582 if (wdev->ap_unexpected_nlpid)
6585 wdev->ap_unexpected_nlpid = info->snd_pid;
6589 static int nl80211_probe_client(struct sk_buff *skb,
6590 struct genl_info *info)
6592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6593 struct net_device *dev = info->user_ptr[1];
6594 struct wireless_dev *wdev = dev->ieee80211_ptr;
6595 struct sk_buff *msg;
6601 if (wdev->iftype != NL80211_IFTYPE_AP &&
6602 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6605 if (!info->attrs[NL80211_ATTR_MAC])
6608 if (!rdev->ops->probe_client)
6611 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6615 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6616 NL80211_CMD_PROBE_CLIENT);
6623 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6625 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6629 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6630 goto nla_put_failure;
6632 genlmsg_end(msg, hdr);
6634 return genlmsg_reply(msg, info);
6643 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6645 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6647 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6650 if (rdev->ap_beacons_nlpid)
6653 rdev->ap_beacons_nlpid = info->snd_pid;
6658 #define NL80211_FLAG_NEED_WIPHY 0x01
6659 #define NL80211_FLAG_NEED_NETDEV 0x02
6660 #define NL80211_FLAG_NEED_RTNL 0x04
6661 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6662 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6663 NL80211_FLAG_CHECK_NETDEV_UP)
6665 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6666 struct genl_info *info)
6668 struct cfg80211_registered_device *rdev;
6669 struct net_device *dev;
6671 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6676 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6677 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6681 return PTR_ERR(rdev);
6683 info->user_ptr[0] = rdev;
6684 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6685 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6692 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6693 !netif_running(dev)) {
6694 cfg80211_unlock_rdev(rdev);
6700 info->user_ptr[0] = rdev;
6701 info->user_ptr[1] = dev;
6707 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6708 struct genl_info *info)
6710 if (info->user_ptr[0])
6711 cfg80211_unlock_rdev(info->user_ptr[0]);
6712 if (info->user_ptr[1])
6713 dev_put(info->user_ptr[1]);
6714 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6718 static struct genl_ops nl80211_ops[] = {
6720 .cmd = NL80211_CMD_GET_WIPHY,
6721 .doit = nl80211_get_wiphy,
6722 .dumpit = nl80211_dump_wiphy,
6723 .policy = nl80211_policy,
6724 /* can be retrieved by unprivileged users */
6725 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6728 .cmd = NL80211_CMD_SET_WIPHY,
6729 .doit = nl80211_set_wiphy,
6730 .policy = nl80211_policy,
6731 .flags = GENL_ADMIN_PERM,
6732 .internal_flags = NL80211_FLAG_NEED_RTNL,
6735 .cmd = NL80211_CMD_GET_INTERFACE,
6736 .doit = nl80211_get_interface,
6737 .dumpit = nl80211_dump_interface,
6738 .policy = nl80211_policy,
6739 /* can be retrieved by unprivileged users */
6740 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6743 .cmd = NL80211_CMD_SET_INTERFACE,
6744 .doit = nl80211_set_interface,
6745 .policy = nl80211_policy,
6746 .flags = GENL_ADMIN_PERM,
6747 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6748 NL80211_FLAG_NEED_RTNL,
6751 .cmd = NL80211_CMD_NEW_INTERFACE,
6752 .doit = nl80211_new_interface,
6753 .policy = nl80211_policy,
6754 .flags = GENL_ADMIN_PERM,
6755 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6756 NL80211_FLAG_NEED_RTNL,
6759 .cmd = NL80211_CMD_DEL_INTERFACE,
6760 .doit = nl80211_del_interface,
6761 .policy = nl80211_policy,
6762 .flags = GENL_ADMIN_PERM,
6763 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6764 NL80211_FLAG_NEED_RTNL,
6767 .cmd = NL80211_CMD_GET_KEY,
6768 .doit = nl80211_get_key,
6769 .policy = nl80211_policy,
6770 .flags = GENL_ADMIN_PERM,
6771 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6772 NL80211_FLAG_NEED_RTNL,
6775 .cmd = NL80211_CMD_SET_KEY,
6776 .doit = nl80211_set_key,
6777 .policy = nl80211_policy,
6778 .flags = GENL_ADMIN_PERM,
6779 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6780 NL80211_FLAG_NEED_RTNL,
6783 .cmd = NL80211_CMD_NEW_KEY,
6784 .doit = nl80211_new_key,
6785 .policy = nl80211_policy,
6786 .flags = GENL_ADMIN_PERM,
6787 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6788 NL80211_FLAG_NEED_RTNL,
6791 .cmd = NL80211_CMD_DEL_KEY,
6792 .doit = nl80211_del_key,
6793 .policy = nl80211_policy,
6794 .flags = GENL_ADMIN_PERM,
6795 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6796 NL80211_FLAG_NEED_RTNL,
6799 .cmd = NL80211_CMD_SET_BEACON,
6800 .policy = nl80211_policy,
6801 .flags = GENL_ADMIN_PERM,
6802 .doit = nl80211_set_beacon,
6803 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6804 NL80211_FLAG_NEED_RTNL,
6807 .cmd = NL80211_CMD_START_AP,
6808 .policy = nl80211_policy,
6809 .flags = GENL_ADMIN_PERM,
6810 .doit = nl80211_start_ap,
6811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6812 NL80211_FLAG_NEED_RTNL,
6815 .cmd = NL80211_CMD_STOP_AP,
6816 .policy = nl80211_policy,
6817 .flags = GENL_ADMIN_PERM,
6818 .doit = nl80211_stop_ap,
6819 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6820 NL80211_FLAG_NEED_RTNL,
6823 .cmd = NL80211_CMD_GET_STATION,
6824 .doit = nl80211_get_station,
6825 .dumpit = nl80211_dump_station,
6826 .policy = nl80211_policy,
6827 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6828 NL80211_FLAG_NEED_RTNL,
6831 .cmd = NL80211_CMD_SET_STATION,
6832 .doit = nl80211_set_station,
6833 .policy = nl80211_policy,
6834 .flags = GENL_ADMIN_PERM,
6835 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6836 NL80211_FLAG_NEED_RTNL,
6839 .cmd = NL80211_CMD_NEW_STATION,
6840 .doit = nl80211_new_station,
6841 .policy = nl80211_policy,
6842 .flags = GENL_ADMIN_PERM,
6843 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6844 NL80211_FLAG_NEED_RTNL,
6847 .cmd = NL80211_CMD_DEL_STATION,
6848 .doit = nl80211_del_station,
6849 .policy = nl80211_policy,
6850 .flags = GENL_ADMIN_PERM,
6851 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6852 NL80211_FLAG_NEED_RTNL,
6855 .cmd = NL80211_CMD_GET_MPATH,
6856 .doit = nl80211_get_mpath,
6857 .dumpit = nl80211_dump_mpath,
6858 .policy = nl80211_policy,
6859 .flags = GENL_ADMIN_PERM,
6860 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6861 NL80211_FLAG_NEED_RTNL,
6864 .cmd = NL80211_CMD_SET_MPATH,
6865 .doit = nl80211_set_mpath,
6866 .policy = nl80211_policy,
6867 .flags = GENL_ADMIN_PERM,
6868 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6869 NL80211_FLAG_NEED_RTNL,
6872 .cmd = NL80211_CMD_NEW_MPATH,
6873 .doit = nl80211_new_mpath,
6874 .policy = nl80211_policy,
6875 .flags = GENL_ADMIN_PERM,
6876 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6877 NL80211_FLAG_NEED_RTNL,
6880 .cmd = NL80211_CMD_DEL_MPATH,
6881 .doit = nl80211_del_mpath,
6882 .policy = nl80211_policy,
6883 .flags = GENL_ADMIN_PERM,
6884 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6885 NL80211_FLAG_NEED_RTNL,
6888 .cmd = NL80211_CMD_SET_BSS,
6889 .doit = nl80211_set_bss,
6890 .policy = nl80211_policy,
6891 .flags = GENL_ADMIN_PERM,
6892 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6893 NL80211_FLAG_NEED_RTNL,
6896 .cmd = NL80211_CMD_GET_REG,
6897 .doit = nl80211_get_reg,
6898 .policy = nl80211_policy,
6899 /* can be retrieved by unprivileged users */
6902 .cmd = NL80211_CMD_SET_REG,
6903 .doit = nl80211_set_reg,
6904 .policy = nl80211_policy,
6905 .flags = GENL_ADMIN_PERM,
6908 .cmd = NL80211_CMD_REQ_SET_REG,
6909 .doit = nl80211_req_set_reg,
6910 .policy = nl80211_policy,
6911 .flags = GENL_ADMIN_PERM,
6914 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6915 .doit = nl80211_get_mesh_config,
6916 .policy = nl80211_policy,
6917 /* can be retrieved by unprivileged users */
6918 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6919 NL80211_FLAG_NEED_RTNL,
6922 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6923 .doit = nl80211_update_mesh_config,
6924 .policy = nl80211_policy,
6925 .flags = GENL_ADMIN_PERM,
6926 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6927 NL80211_FLAG_NEED_RTNL,
6930 .cmd = NL80211_CMD_TRIGGER_SCAN,
6931 .doit = nl80211_trigger_scan,
6932 .policy = nl80211_policy,
6933 .flags = GENL_ADMIN_PERM,
6934 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6935 NL80211_FLAG_NEED_RTNL,
6938 .cmd = NL80211_CMD_GET_SCAN,
6939 .policy = nl80211_policy,
6940 .dumpit = nl80211_dump_scan,
6943 .cmd = NL80211_CMD_START_SCHED_SCAN,
6944 .doit = nl80211_start_sched_scan,
6945 .policy = nl80211_policy,
6946 .flags = GENL_ADMIN_PERM,
6947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6948 NL80211_FLAG_NEED_RTNL,
6951 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6952 .doit = nl80211_stop_sched_scan,
6953 .policy = nl80211_policy,
6954 .flags = GENL_ADMIN_PERM,
6955 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6956 NL80211_FLAG_NEED_RTNL,
6959 .cmd = NL80211_CMD_AUTHENTICATE,
6960 .doit = nl80211_authenticate,
6961 .policy = nl80211_policy,
6962 .flags = GENL_ADMIN_PERM,
6963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6964 NL80211_FLAG_NEED_RTNL,
6967 .cmd = NL80211_CMD_ASSOCIATE,
6968 .doit = nl80211_associate,
6969 .policy = nl80211_policy,
6970 .flags = GENL_ADMIN_PERM,
6971 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6972 NL80211_FLAG_NEED_RTNL,
6975 .cmd = NL80211_CMD_DEAUTHENTICATE,
6976 .doit = nl80211_deauthenticate,
6977 .policy = nl80211_policy,
6978 .flags = GENL_ADMIN_PERM,
6979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6980 NL80211_FLAG_NEED_RTNL,
6983 .cmd = NL80211_CMD_DISASSOCIATE,
6984 .doit = nl80211_disassociate,
6985 .policy = nl80211_policy,
6986 .flags = GENL_ADMIN_PERM,
6987 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6988 NL80211_FLAG_NEED_RTNL,
6991 .cmd = NL80211_CMD_JOIN_IBSS,
6992 .doit = nl80211_join_ibss,
6993 .policy = nl80211_policy,
6994 .flags = GENL_ADMIN_PERM,
6995 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6996 NL80211_FLAG_NEED_RTNL,
6999 .cmd = NL80211_CMD_LEAVE_IBSS,
7000 .doit = nl80211_leave_ibss,
7001 .policy = nl80211_policy,
7002 .flags = GENL_ADMIN_PERM,
7003 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7004 NL80211_FLAG_NEED_RTNL,
7006 #ifdef CONFIG_NL80211_TESTMODE
7008 .cmd = NL80211_CMD_TESTMODE,
7009 .doit = nl80211_testmode_do,
7010 .dumpit = nl80211_testmode_dump,
7011 .policy = nl80211_policy,
7012 .flags = GENL_ADMIN_PERM,
7013 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7014 NL80211_FLAG_NEED_RTNL,
7018 .cmd = NL80211_CMD_CONNECT,
7019 .doit = nl80211_connect,
7020 .policy = nl80211_policy,
7021 .flags = GENL_ADMIN_PERM,
7022 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7023 NL80211_FLAG_NEED_RTNL,
7026 .cmd = NL80211_CMD_DISCONNECT,
7027 .doit = nl80211_disconnect,
7028 .policy = nl80211_policy,
7029 .flags = GENL_ADMIN_PERM,
7030 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7031 NL80211_FLAG_NEED_RTNL,
7034 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7035 .doit = nl80211_wiphy_netns,
7036 .policy = nl80211_policy,
7037 .flags = GENL_ADMIN_PERM,
7038 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7039 NL80211_FLAG_NEED_RTNL,
7042 .cmd = NL80211_CMD_GET_SURVEY,
7043 .policy = nl80211_policy,
7044 .dumpit = nl80211_dump_survey,
7047 .cmd = NL80211_CMD_SET_PMKSA,
7048 .doit = nl80211_setdel_pmksa,
7049 .policy = nl80211_policy,
7050 .flags = GENL_ADMIN_PERM,
7051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7052 NL80211_FLAG_NEED_RTNL,
7055 .cmd = NL80211_CMD_DEL_PMKSA,
7056 .doit = nl80211_setdel_pmksa,
7057 .policy = nl80211_policy,
7058 .flags = GENL_ADMIN_PERM,
7059 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7060 NL80211_FLAG_NEED_RTNL,
7063 .cmd = NL80211_CMD_FLUSH_PMKSA,
7064 .doit = nl80211_flush_pmksa,
7065 .policy = nl80211_policy,
7066 .flags = GENL_ADMIN_PERM,
7067 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7068 NL80211_FLAG_NEED_RTNL,
7071 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7072 .doit = nl80211_remain_on_channel,
7073 .policy = nl80211_policy,
7074 .flags = GENL_ADMIN_PERM,
7075 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7076 NL80211_FLAG_NEED_RTNL,
7079 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7080 .doit = nl80211_cancel_remain_on_channel,
7081 .policy = nl80211_policy,
7082 .flags = GENL_ADMIN_PERM,
7083 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7084 NL80211_FLAG_NEED_RTNL,
7087 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7088 .doit = nl80211_set_tx_bitrate_mask,
7089 .policy = nl80211_policy,
7090 .flags = GENL_ADMIN_PERM,
7091 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7092 NL80211_FLAG_NEED_RTNL,
7095 .cmd = NL80211_CMD_REGISTER_FRAME,
7096 .doit = nl80211_register_mgmt,
7097 .policy = nl80211_policy,
7098 .flags = GENL_ADMIN_PERM,
7099 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7100 NL80211_FLAG_NEED_RTNL,
7103 .cmd = NL80211_CMD_FRAME,
7104 .doit = nl80211_tx_mgmt,
7105 .policy = nl80211_policy,
7106 .flags = GENL_ADMIN_PERM,
7107 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7108 NL80211_FLAG_NEED_RTNL,
7111 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7112 .doit = nl80211_tx_mgmt_cancel_wait,
7113 .policy = nl80211_policy,
7114 .flags = GENL_ADMIN_PERM,
7115 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7116 NL80211_FLAG_NEED_RTNL,
7119 .cmd = NL80211_CMD_SET_POWER_SAVE,
7120 .doit = nl80211_set_power_save,
7121 .policy = nl80211_policy,
7122 .flags = GENL_ADMIN_PERM,
7123 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7124 NL80211_FLAG_NEED_RTNL,
7127 .cmd = NL80211_CMD_GET_POWER_SAVE,
7128 .doit = nl80211_get_power_save,
7129 .policy = nl80211_policy,
7130 /* can be retrieved by unprivileged users */
7131 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7132 NL80211_FLAG_NEED_RTNL,
7135 .cmd = NL80211_CMD_SET_CQM,
7136 .doit = nl80211_set_cqm,
7137 .policy = nl80211_policy,
7138 .flags = GENL_ADMIN_PERM,
7139 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7140 NL80211_FLAG_NEED_RTNL,
7143 .cmd = NL80211_CMD_SET_CHANNEL,
7144 .doit = nl80211_set_channel,
7145 .policy = nl80211_policy,
7146 .flags = GENL_ADMIN_PERM,
7147 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7148 NL80211_FLAG_NEED_RTNL,
7151 .cmd = NL80211_CMD_SET_WDS_PEER,
7152 .doit = nl80211_set_wds_peer,
7153 .policy = nl80211_policy,
7154 .flags = GENL_ADMIN_PERM,
7155 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7156 NL80211_FLAG_NEED_RTNL,
7159 .cmd = NL80211_CMD_JOIN_MESH,
7160 .doit = nl80211_join_mesh,
7161 .policy = nl80211_policy,
7162 .flags = GENL_ADMIN_PERM,
7163 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7164 NL80211_FLAG_NEED_RTNL,
7167 .cmd = NL80211_CMD_LEAVE_MESH,
7168 .doit = nl80211_leave_mesh,
7169 .policy = nl80211_policy,
7170 .flags = GENL_ADMIN_PERM,
7171 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7172 NL80211_FLAG_NEED_RTNL,
7176 .cmd = NL80211_CMD_GET_WOWLAN,
7177 .doit = nl80211_get_wowlan,
7178 .policy = nl80211_policy,
7179 /* can be retrieved by unprivileged users */
7180 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7181 NL80211_FLAG_NEED_RTNL,
7184 .cmd = NL80211_CMD_SET_WOWLAN,
7185 .doit = nl80211_set_wowlan,
7186 .policy = nl80211_policy,
7187 .flags = GENL_ADMIN_PERM,
7188 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7189 NL80211_FLAG_NEED_RTNL,
7193 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7194 .doit = nl80211_set_rekey_data,
7195 .policy = nl80211_policy,
7196 .flags = GENL_ADMIN_PERM,
7197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7198 NL80211_FLAG_NEED_RTNL,
7201 .cmd = NL80211_CMD_TDLS_MGMT,
7202 .doit = nl80211_tdls_mgmt,
7203 .policy = nl80211_policy,
7204 .flags = GENL_ADMIN_PERM,
7205 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7206 NL80211_FLAG_NEED_RTNL,
7209 .cmd = NL80211_CMD_TDLS_OPER,
7210 .doit = nl80211_tdls_oper,
7211 .policy = nl80211_policy,
7212 .flags = GENL_ADMIN_PERM,
7213 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7214 NL80211_FLAG_NEED_RTNL,
7217 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7218 .doit = nl80211_register_unexpected_frame,
7219 .policy = nl80211_policy,
7220 .flags = GENL_ADMIN_PERM,
7221 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7222 NL80211_FLAG_NEED_RTNL,
7225 .cmd = NL80211_CMD_PROBE_CLIENT,
7226 .doit = nl80211_probe_client,
7227 .policy = nl80211_policy,
7228 .flags = GENL_ADMIN_PERM,
7229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7230 NL80211_FLAG_NEED_RTNL,
7233 .cmd = NL80211_CMD_REGISTER_BEACONS,
7234 .doit = nl80211_register_beacons,
7235 .policy = nl80211_policy,
7236 .flags = GENL_ADMIN_PERM,
7237 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7238 NL80211_FLAG_NEED_RTNL,
7241 .cmd = NL80211_CMD_SET_NOACK_MAP,
7242 .doit = nl80211_set_noack_map,
7243 .policy = nl80211_policy,
7244 .flags = GENL_ADMIN_PERM,
7245 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7246 NL80211_FLAG_NEED_RTNL,
7251 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7255 /* multicast groups */
7256 static struct genl_multicast_group nl80211_config_mcgrp = {
7259 static struct genl_multicast_group nl80211_scan_mcgrp = {
7262 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7263 .name = "regulatory",
7266 /* notification functions */
7268 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7270 struct sk_buff *msg;
7272 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7276 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7281 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7282 nl80211_config_mcgrp.id, GFP_KERNEL);
7285 static int nl80211_add_scan_req(struct sk_buff *msg,
7286 struct cfg80211_registered_device *rdev)
7288 struct cfg80211_scan_request *req = rdev->scan_req;
7289 struct nlattr *nest;
7292 ASSERT_RDEV_LOCK(rdev);
7297 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7299 goto nla_put_failure;
7300 for (i = 0; i < req->n_ssids; i++) {
7301 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7302 goto nla_put_failure;
7304 nla_nest_end(msg, nest);
7306 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7308 goto nla_put_failure;
7309 for (i = 0; i < req->n_channels; i++) {
7310 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7311 goto nla_put_failure;
7313 nla_nest_end(msg, nest);
7316 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7317 goto nla_put_failure;
7324 static int nl80211_send_scan_msg(struct sk_buff *msg,
7325 struct cfg80211_registered_device *rdev,
7326 struct net_device *netdev,
7327 u32 pid, u32 seq, int flags,
7332 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7336 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7337 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7338 goto nla_put_failure;
7340 /* ignore errors and send incomplete event anyway */
7341 nl80211_add_scan_req(msg, rdev);
7343 return genlmsg_end(msg, hdr);
7346 genlmsg_cancel(msg, hdr);
7351 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7352 struct cfg80211_registered_device *rdev,
7353 struct net_device *netdev,
7354 u32 pid, u32 seq, int flags, u32 cmd)
7358 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7362 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7363 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7364 goto nla_put_failure;
7366 return genlmsg_end(msg, hdr);
7369 genlmsg_cancel(msg, hdr);
7373 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7374 struct net_device *netdev)
7376 struct sk_buff *msg;
7378 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7382 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7383 NL80211_CMD_TRIGGER_SCAN) < 0) {
7388 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7389 nl80211_scan_mcgrp.id, GFP_KERNEL);
7392 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7393 struct net_device *netdev)
7395 struct sk_buff *msg;
7397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7401 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7402 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7407 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7408 nl80211_scan_mcgrp.id, GFP_KERNEL);
7411 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7412 struct net_device *netdev)
7414 struct sk_buff *msg;
7416 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7420 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7421 NL80211_CMD_SCAN_ABORTED) < 0) {
7426 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7427 nl80211_scan_mcgrp.id, GFP_KERNEL);
7430 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7431 struct net_device *netdev)
7433 struct sk_buff *msg;
7435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7439 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7440 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7445 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7446 nl80211_scan_mcgrp.id, GFP_KERNEL);
7449 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7450 struct net_device *netdev, u32 cmd)
7452 struct sk_buff *msg;
7454 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7458 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7463 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7464 nl80211_scan_mcgrp.id, GFP_KERNEL);
7468 * This can happen on global regulatory changes or device specific settings
7469 * based on custom world regulatory domains.
7471 void nl80211_send_reg_change_event(struct regulatory_request *request)
7473 struct sk_buff *msg;
7476 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7480 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7486 /* Userspace can always count this one always being set */
7487 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7488 goto nla_put_failure;
7490 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7491 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7492 NL80211_REGDOM_TYPE_WORLD))
7493 goto nla_put_failure;
7494 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7495 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7496 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7497 goto nla_put_failure;
7498 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7499 request->intersect) {
7500 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7501 NL80211_REGDOM_TYPE_INTERSECTION))
7502 goto nla_put_failure;
7504 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7505 NL80211_REGDOM_TYPE_COUNTRY) ||
7506 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7508 goto nla_put_failure;
7511 if (wiphy_idx_valid(request->wiphy_idx) &&
7512 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7513 goto nla_put_failure;
7515 genlmsg_end(msg, hdr);
7518 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7525 genlmsg_cancel(msg, hdr);
7529 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7530 struct net_device *netdev,
7531 const u8 *buf, size_t len,
7532 enum nl80211_commands cmd, gfp_t gfp)
7534 struct sk_buff *msg;
7537 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7541 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7547 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7548 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7549 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7550 goto nla_put_failure;
7552 genlmsg_end(msg, hdr);
7554 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7555 nl80211_mlme_mcgrp.id, gfp);
7559 genlmsg_cancel(msg, hdr);
7563 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7564 struct net_device *netdev, const u8 *buf,
7565 size_t len, gfp_t gfp)
7567 nl80211_send_mlme_event(rdev, netdev, buf, len,
7568 NL80211_CMD_AUTHENTICATE, gfp);
7571 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7572 struct net_device *netdev, const u8 *buf,
7573 size_t len, gfp_t gfp)
7575 nl80211_send_mlme_event(rdev, netdev, buf, len,
7576 NL80211_CMD_ASSOCIATE, gfp);
7579 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7580 struct net_device *netdev, const u8 *buf,
7581 size_t len, gfp_t gfp)
7583 nl80211_send_mlme_event(rdev, netdev, buf, len,
7584 NL80211_CMD_DEAUTHENTICATE, gfp);
7587 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7588 struct net_device *netdev, const u8 *buf,
7589 size_t len, gfp_t gfp)
7591 nl80211_send_mlme_event(rdev, netdev, buf, len,
7592 NL80211_CMD_DISASSOCIATE, gfp);
7595 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7596 struct net_device *netdev, const u8 *buf,
7597 size_t len, gfp_t gfp)
7599 nl80211_send_mlme_event(rdev, netdev, buf, len,
7600 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7603 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7604 struct net_device *netdev, const u8 *buf,
7605 size_t len, gfp_t gfp)
7607 nl80211_send_mlme_event(rdev, netdev, buf, len,
7608 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7611 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7612 struct net_device *netdev, int cmd,
7613 const u8 *addr, gfp_t gfp)
7615 struct sk_buff *msg;
7618 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7622 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7628 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7629 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7630 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7631 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7632 goto nla_put_failure;
7634 genlmsg_end(msg, hdr);
7636 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7637 nl80211_mlme_mcgrp.id, gfp);
7641 genlmsg_cancel(msg, hdr);
7645 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7646 struct net_device *netdev, const u8 *addr,
7649 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7653 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7654 struct net_device *netdev, const u8 *addr,
7657 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7661 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7662 struct net_device *netdev, const u8 *bssid,
7663 const u8 *req_ie, size_t req_ie_len,
7664 const u8 *resp_ie, size_t resp_ie_len,
7665 u16 status, gfp_t gfp)
7667 struct sk_buff *msg;
7670 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7674 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7680 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7681 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7682 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7683 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7685 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7687 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7688 goto nla_put_failure;
7690 genlmsg_end(msg, hdr);
7692 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7693 nl80211_mlme_mcgrp.id, gfp);
7697 genlmsg_cancel(msg, hdr);
7702 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7703 struct net_device *netdev, const u8 *bssid,
7704 const u8 *req_ie, size_t req_ie_len,
7705 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7707 struct sk_buff *msg;
7710 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7714 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7721 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7722 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7724 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7726 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7727 goto nla_put_failure;
7729 genlmsg_end(msg, hdr);
7731 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7732 nl80211_mlme_mcgrp.id, gfp);
7736 genlmsg_cancel(msg, hdr);
7741 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7742 struct net_device *netdev, u16 reason,
7743 const u8 *ie, size_t ie_len, bool from_ap)
7745 struct sk_buff *msg;
7748 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7752 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7758 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7759 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7760 (from_ap && reason &&
7761 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7763 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7764 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7765 goto nla_put_failure;
7767 genlmsg_end(msg, hdr);
7769 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7770 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7774 genlmsg_cancel(msg, hdr);
7779 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7780 struct net_device *netdev, const u8 *bssid,
7783 struct sk_buff *msg;
7786 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7790 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7796 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7797 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7798 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7799 goto nla_put_failure;
7801 genlmsg_end(msg, hdr);
7803 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7804 nl80211_mlme_mcgrp.id, gfp);
7808 genlmsg_cancel(msg, hdr);
7812 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7813 struct net_device *netdev,
7814 const u8 *macaddr, const u8* ie, u8 ie_len,
7817 struct sk_buff *msg;
7820 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7824 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7830 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7831 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7832 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7834 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7835 goto nla_put_failure;
7837 genlmsg_end(msg, hdr);
7839 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7840 nl80211_mlme_mcgrp.id, gfp);
7844 genlmsg_cancel(msg, hdr);
7848 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7849 struct net_device *netdev, const u8 *addr,
7850 enum nl80211_key_type key_type, int key_id,
7851 const u8 *tsc, gfp_t gfp)
7853 struct sk_buff *msg;
7856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7860 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7866 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7867 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7868 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7869 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7871 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7872 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7873 goto nla_put_failure;
7875 genlmsg_end(msg, hdr);
7877 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7878 nl80211_mlme_mcgrp.id, gfp);
7882 genlmsg_cancel(msg, hdr);
7886 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7887 struct ieee80211_channel *channel_before,
7888 struct ieee80211_channel *channel_after)
7890 struct sk_buff *msg;
7892 struct nlattr *nl_freq;
7894 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7898 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7905 * Since we are applying the beacon hint to a wiphy we know its
7906 * wiphy_idx is valid
7908 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7909 goto nla_put_failure;
7912 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7914 goto nla_put_failure;
7915 if (nl80211_msg_put_channel(msg, channel_before))
7916 goto nla_put_failure;
7917 nla_nest_end(msg, nl_freq);
7920 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7922 goto nla_put_failure;
7923 if (nl80211_msg_put_channel(msg, channel_after))
7924 goto nla_put_failure;
7925 nla_nest_end(msg, nl_freq);
7927 genlmsg_end(msg, hdr);
7930 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7937 genlmsg_cancel(msg, hdr);
7941 static void nl80211_send_remain_on_chan_event(
7942 int cmd, struct cfg80211_registered_device *rdev,
7943 struct net_device *netdev, u64 cookie,
7944 struct ieee80211_channel *chan,
7945 enum nl80211_channel_type channel_type,
7946 unsigned int duration, gfp_t gfp)
7948 struct sk_buff *msg;
7951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7955 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7961 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7962 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7963 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7964 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7965 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7966 goto nla_put_failure;
7968 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7969 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7970 goto nla_put_failure;
7972 genlmsg_end(msg, hdr);
7974 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7975 nl80211_mlme_mcgrp.id, gfp);
7979 genlmsg_cancel(msg, hdr);
7983 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7984 struct net_device *netdev, u64 cookie,
7985 struct ieee80211_channel *chan,
7986 enum nl80211_channel_type channel_type,
7987 unsigned int duration, gfp_t gfp)
7989 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7990 rdev, netdev, cookie, chan,
7991 channel_type, duration, gfp);
7994 void nl80211_send_remain_on_channel_cancel(
7995 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7996 u64 cookie, struct ieee80211_channel *chan,
7997 enum nl80211_channel_type channel_type, gfp_t gfp)
7999 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8000 rdev, netdev, cookie, chan,
8001 channel_type, 0, gfp);
8004 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8005 struct net_device *dev, const u8 *mac_addr,
8006 struct station_info *sinfo, gfp_t gfp)
8008 struct sk_buff *msg;
8010 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8014 if (nl80211_send_station(msg, 0, 0, 0,
8015 rdev, dev, mac_addr, sinfo) < 0) {
8020 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8021 nl80211_mlme_mcgrp.id, gfp);
8024 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8025 struct net_device *dev, const u8 *mac_addr,
8028 struct sk_buff *msg;
8031 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8035 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8041 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8042 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8043 goto nla_put_failure;
8045 genlmsg_end(msg, hdr);
8047 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8048 nl80211_mlme_mcgrp.id, gfp);
8052 genlmsg_cancel(msg, hdr);
8056 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8057 const u8 *addr, gfp_t gfp)
8059 struct wireless_dev *wdev = dev->ieee80211_ptr;
8060 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8061 struct sk_buff *msg;
8064 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8069 msg = nlmsg_new(100, gfp);
8073 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8079 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8080 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8081 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8082 goto nla_put_failure;
8084 err = genlmsg_end(msg, hdr);
8090 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8094 genlmsg_cancel(msg, hdr);
8099 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8101 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8105 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8106 const u8 *addr, gfp_t gfp)
8108 return __nl80211_unexpected_frame(dev,
8109 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8113 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8114 struct net_device *netdev, u32 nlpid,
8115 int freq, int sig_dbm,
8116 const u8 *buf, size_t len, gfp_t gfp)
8118 struct sk_buff *msg;
8121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8125 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8131 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8132 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8133 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8135 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8136 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8137 goto nla_put_failure;
8139 genlmsg_end(msg, hdr);
8141 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8144 genlmsg_cancel(msg, hdr);
8149 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8150 struct net_device *netdev, u64 cookie,
8151 const u8 *buf, size_t len, bool ack,
8154 struct sk_buff *msg;
8157 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8161 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8167 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8168 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8169 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8170 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8171 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8172 goto nla_put_failure;
8174 genlmsg_end(msg, hdr);
8176 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8180 genlmsg_cancel(msg, hdr);
8185 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8186 struct net_device *netdev,
8187 enum nl80211_cqm_rssi_threshold_event rssi_event,
8190 struct sk_buff *msg;
8191 struct nlattr *pinfoattr;
8194 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8198 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8204 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8205 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8206 goto nla_put_failure;
8208 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8210 goto nla_put_failure;
8212 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8214 goto nla_put_failure;
8216 nla_nest_end(msg, pinfoattr);
8218 genlmsg_end(msg, hdr);
8220 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8221 nl80211_mlme_mcgrp.id, gfp);
8225 genlmsg_cancel(msg, hdr);
8229 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8230 struct net_device *netdev, const u8 *bssid,
8231 const u8 *replay_ctr, gfp_t gfp)
8233 struct sk_buff *msg;
8234 struct nlattr *rekey_attr;
8237 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8241 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8248 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8249 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8250 goto nla_put_failure;
8252 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8254 goto nla_put_failure;
8256 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8257 NL80211_REPLAY_CTR_LEN, replay_ctr))
8258 goto nla_put_failure;
8260 nla_nest_end(msg, rekey_attr);
8262 genlmsg_end(msg, hdr);
8264 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8265 nl80211_mlme_mcgrp.id, gfp);
8269 genlmsg_cancel(msg, hdr);
8273 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8274 struct net_device *netdev, int index,
8275 const u8 *bssid, bool preauth, gfp_t gfp)
8277 struct sk_buff *msg;
8278 struct nlattr *attr;
8281 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8285 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8291 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8292 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8293 goto nla_put_failure;
8295 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8297 goto nla_put_failure;
8299 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8300 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8302 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8303 goto nla_put_failure;
8305 nla_nest_end(msg, attr);
8307 genlmsg_end(msg, hdr);
8309 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8310 nl80211_mlme_mcgrp.id, gfp);
8314 genlmsg_cancel(msg, hdr);
8318 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8319 struct net_device *netdev, int freq,
8320 enum nl80211_channel_type type, gfp_t gfp)
8322 struct sk_buff *msg;
8325 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8335 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8336 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8337 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8338 goto nla_put_failure;
8340 genlmsg_end(msg, hdr);
8342 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8343 nl80211_mlme_mcgrp.id, gfp);
8347 genlmsg_cancel(msg, hdr);
8352 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8353 struct net_device *netdev, const u8 *peer,
8354 u32 num_packets, gfp_t gfp)
8356 struct sk_buff *msg;
8357 struct nlattr *pinfoattr;
8360 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8364 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8370 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8371 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8372 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8373 goto nla_put_failure;
8375 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8377 goto nla_put_failure;
8379 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8380 goto nla_put_failure;
8382 nla_nest_end(msg, pinfoattr);
8384 genlmsg_end(msg, hdr);
8386 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8387 nl80211_mlme_mcgrp.id, gfp);
8391 genlmsg_cancel(msg, hdr);
8395 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8396 u64 cookie, bool acked, gfp_t gfp)
8398 struct wireless_dev *wdev = dev->ieee80211_ptr;
8399 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8400 struct sk_buff *msg;
8404 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8408 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8414 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8415 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8416 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8417 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8418 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8419 goto nla_put_failure;
8421 err = genlmsg_end(msg, hdr);
8427 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8428 nl80211_mlme_mcgrp.id, gfp);
8432 genlmsg_cancel(msg, hdr);
8435 EXPORT_SYMBOL(cfg80211_probe_status);
8437 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8438 const u8 *frame, size_t len,
8439 int freq, int sig_dbm, gfp_t gfp)
8441 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8442 struct sk_buff *msg;
8444 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8449 msg = nlmsg_new(len + 100, gfp);
8453 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8459 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8461 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8463 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8464 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8465 goto nla_put_failure;
8467 genlmsg_end(msg, hdr);
8469 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8473 genlmsg_cancel(msg, hdr);
8476 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8478 static int nl80211_netlink_notify(struct notifier_block * nb,
8479 unsigned long state,
8482 struct netlink_notify *notify = _notify;
8483 struct cfg80211_registered_device *rdev;
8484 struct wireless_dev *wdev;
8486 if (state != NETLINK_URELEASE)
8491 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8492 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8493 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8494 if (rdev->ap_beacons_nlpid == notify->pid)
8495 rdev->ap_beacons_nlpid = 0;
8503 static struct notifier_block nl80211_netlink_notifier = {
8504 .notifier_call = nl80211_netlink_notify,
8507 /* initialisation/exit functions */
8509 int nl80211_init(void)
8513 err = genl_register_family_with_ops(&nl80211_fam,
8514 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8518 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8522 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8526 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8530 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8534 #ifdef CONFIG_NL80211_TESTMODE
8535 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8540 err = netlink_register_notifier(&nl80211_netlink_notifier);
8546 genl_unregister_family(&nl80211_fam);
8550 void nl80211_exit(void)
8552 netlink_unregister_notifier(&nl80211_netlink_notifier);
8553 genl_unregister_family(&nl80211_fam);