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;
2491 wdev->channel = params.channel;
2496 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2498 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2499 struct net_device *dev = info->user_ptr[1];
2500 struct wireless_dev *wdev = dev->ieee80211_ptr;
2501 struct cfg80211_beacon_data params;
2504 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2505 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2508 if (!rdev->ops->change_beacon)
2511 if (!wdev->beacon_interval)
2514 err = nl80211_parse_beacon(info, ¶ms);
2518 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2521 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2524 struct net_device *dev = info->user_ptr[1];
2526 return cfg80211_stop_ap(rdev, dev);
2529 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2530 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2531 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2532 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2533 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2534 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2535 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2538 static int parse_station_flags(struct genl_info *info,
2539 enum nl80211_iftype iftype,
2540 struct station_parameters *params)
2542 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2547 * Try parsing the new attribute first so userspace
2548 * can specify both for older kernels.
2550 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2552 struct nl80211_sta_flag_update *sta_flags;
2554 sta_flags = nla_data(nla);
2555 params->sta_flags_mask = sta_flags->mask;
2556 params->sta_flags_set = sta_flags->set;
2557 if ((params->sta_flags_mask |
2558 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2563 /* if present, parse the old attribute */
2565 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2569 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2570 nla, sta_flags_policy))
2574 * Only allow certain flags for interface types so that
2575 * other attributes are silently ignored. Remember that
2576 * this is backward compatibility code with old userspace
2577 * and shouldn't be hit in other cases anyway.
2580 case NL80211_IFTYPE_AP:
2581 case NL80211_IFTYPE_AP_VLAN:
2582 case NL80211_IFTYPE_P2P_GO:
2583 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2584 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2585 BIT(NL80211_STA_FLAG_WME) |
2586 BIT(NL80211_STA_FLAG_MFP);
2588 case NL80211_IFTYPE_P2P_CLIENT:
2589 case NL80211_IFTYPE_STATION:
2590 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2591 BIT(NL80211_STA_FLAG_TDLS_PEER);
2593 case NL80211_IFTYPE_MESH_POINT:
2594 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2595 BIT(NL80211_STA_FLAG_MFP) |
2596 BIT(NL80211_STA_FLAG_AUTHORIZED);
2601 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2603 params->sta_flags_set |= (1<<flag);
2605 /* no longer support new API additions in old API */
2606 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2614 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2617 struct nlattr *rate;
2620 rate = nla_nest_start(msg, attr);
2622 goto nla_put_failure;
2624 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2625 bitrate = cfg80211_calculate_bitrate(info);
2627 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2628 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2629 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2630 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2631 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2632 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2633 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2634 goto nla_put_failure;
2636 nla_nest_end(msg, rate);
2643 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2645 struct cfg80211_registered_device *rdev,
2646 struct net_device *dev,
2647 const u8 *mac_addr, struct station_info *sinfo)
2650 struct nlattr *sinfoattr, *bss_param;
2652 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2656 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2657 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2658 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2659 goto nla_put_failure;
2661 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2663 goto nla_put_failure;
2664 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2665 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2666 sinfo->connected_time))
2667 goto nla_put_failure;
2668 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2669 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2670 sinfo->inactive_time))
2671 goto nla_put_failure;
2672 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2673 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2675 goto nla_put_failure;
2676 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2677 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2679 goto nla_put_failure;
2680 if ((sinfo->filled & STATION_INFO_LLID) &&
2681 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2682 goto nla_put_failure;
2683 if ((sinfo->filled & STATION_INFO_PLID) &&
2684 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2685 goto nla_put_failure;
2686 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2687 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2688 sinfo->plink_state))
2689 goto nla_put_failure;
2690 switch (rdev->wiphy.signal_type) {
2691 case CFG80211_SIGNAL_TYPE_MBM:
2692 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2693 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2695 goto nla_put_failure;
2696 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2697 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2699 goto nla_put_failure;
2704 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2705 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2706 NL80211_STA_INFO_TX_BITRATE))
2707 goto nla_put_failure;
2709 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2710 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2711 NL80211_STA_INFO_RX_BITRATE))
2712 goto nla_put_failure;
2714 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2715 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2717 goto nla_put_failure;
2718 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2719 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2721 goto nla_put_failure;
2722 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2723 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2725 goto nla_put_failure;
2726 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2727 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2729 goto nla_put_failure;
2730 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2731 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2732 sinfo->beacon_loss_count))
2733 goto nla_put_failure;
2734 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2735 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2737 goto nla_put_failure;
2739 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2740 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2741 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2742 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2743 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2744 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2745 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2746 sinfo->bss_param.dtim_period) ||
2747 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2748 sinfo->bss_param.beacon_interval))
2749 goto nla_put_failure;
2751 nla_nest_end(msg, bss_param);
2753 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2754 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2755 sizeof(struct nl80211_sta_flag_update),
2757 goto nla_put_failure;
2758 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2759 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2761 goto nla_put_failure;
2762 nla_nest_end(msg, sinfoattr);
2764 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2765 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2766 sinfo->assoc_req_ies))
2767 goto nla_put_failure;
2769 return genlmsg_end(msg, hdr);
2772 genlmsg_cancel(msg, hdr);
2776 static int nl80211_dump_station(struct sk_buff *skb,
2777 struct netlink_callback *cb)
2779 struct station_info sinfo;
2780 struct cfg80211_registered_device *dev;
2781 struct net_device *netdev;
2782 u8 mac_addr[ETH_ALEN];
2783 int sta_idx = cb->args[1];
2786 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2790 if (!dev->ops->dump_station) {
2796 memset(&sinfo, 0, sizeof(sinfo));
2797 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2804 if (nl80211_send_station(skb,
2805 NETLINK_CB(cb->skb).pid,
2806 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2807 dev, netdev, mac_addr,
2816 cb->args[1] = sta_idx;
2819 nl80211_finish_netdev_dump(dev);
2824 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2827 struct net_device *dev = info->user_ptr[1];
2828 struct station_info sinfo;
2829 struct sk_buff *msg;
2830 u8 *mac_addr = NULL;
2833 memset(&sinfo, 0, sizeof(sinfo));
2835 if (!info->attrs[NL80211_ATTR_MAC])
2838 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2840 if (!rdev->ops->get_station)
2843 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2851 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2852 rdev, dev, mac_addr, &sinfo) < 0) {
2857 return genlmsg_reply(msg, info);
2861 * Get vlan interface making sure it is running and on the right wiphy.
2863 static struct net_device *get_vlan(struct genl_info *info,
2864 struct cfg80211_registered_device *rdev)
2866 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2867 struct net_device *v;
2873 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2875 return ERR_PTR(-ENODEV);
2877 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2882 if (!netif_running(v)) {
2890 return ERR_PTR(ret);
2893 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2897 struct net_device *dev = info->user_ptr[1];
2898 struct station_parameters params;
2899 u8 *mac_addr = NULL;
2901 memset(¶ms, 0, sizeof(params));
2903 params.listen_interval = -1;
2904 params.plink_state = -1;
2906 if (info->attrs[NL80211_ATTR_STA_AID])
2909 if (!info->attrs[NL80211_ATTR_MAC])
2912 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2914 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2915 params.supported_rates =
2916 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2917 params.supported_rates_len =
2918 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2921 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2922 params.listen_interval =
2923 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2925 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2927 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2929 if (!rdev->ops->change_station)
2932 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2935 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2936 params.plink_action =
2937 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2939 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2940 params.plink_state =
2941 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2943 switch (dev->ieee80211_ptr->iftype) {
2944 case NL80211_IFTYPE_AP:
2945 case NL80211_IFTYPE_AP_VLAN:
2946 case NL80211_IFTYPE_P2P_GO:
2947 /* disallow mesh-specific things */
2948 if (params.plink_action)
2951 /* TDLS can't be set, ... */
2952 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2955 * ... but don't bother the driver with it. This works around
2956 * a hostapd/wpa_supplicant issue -- it always includes the
2957 * TLDS_PEER flag in the mask even for AP mode.
2959 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2961 /* accept only the listed bits */
2962 if (params.sta_flags_mask &
2963 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2964 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2965 BIT(NL80211_STA_FLAG_WME) |
2966 BIT(NL80211_STA_FLAG_MFP)))
2969 /* must be last in here for error handling */
2970 params.vlan = get_vlan(info, rdev);
2971 if (IS_ERR(params.vlan))
2972 return PTR_ERR(params.vlan);
2974 case NL80211_IFTYPE_P2P_CLIENT:
2975 case NL80211_IFTYPE_STATION:
2977 * Don't allow userspace to change the TDLS_PEER flag,
2978 * but silently ignore attempts to change it since we
2979 * don't have state here to verify that it doesn't try
2980 * to change the flag.
2982 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2984 case NL80211_IFTYPE_ADHOC:
2985 /* disallow things sta doesn't support */
2986 if (params.plink_action)
2990 if (params.listen_interval >= 0)
2992 /* reject any changes other than AUTHORIZED */
2993 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2996 case NL80211_IFTYPE_MESH_POINT:
2997 /* disallow things mesh doesn't support */
3002 if (params.listen_interval >= 0)
3005 * No special handling for TDLS here -- the userspace
3006 * mesh code doesn't have this bug.
3008 if (params.sta_flags_mask &
3009 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3010 BIT(NL80211_STA_FLAG_MFP) |
3011 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3018 /* be aware of params.vlan when changing code here */
3020 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3023 dev_put(params.vlan);
3028 static struct nla_policy
3029 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3030 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3031 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3034 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3038 struct net_device *dev = info->user_ptr[1];
3039 struct station_parameters params;
3040 u8 *mac_addr = NULL;
3042 memset(¶ms, 0, sizeof(params));
3044 if (!info->attrs[NL80211_ATTR_MAC])
3047 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3050 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3053 if (!info->attrs[NL80211_ATTR_STA_AID])
3056 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3057 params.supported_rates =
3058 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3059 params.supported_rates_len =
3060 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3061 params.listen_interval =
3062 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3064 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3065 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3068 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3070 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3072 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3073 params.plink_action =
3074 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3076 if (!rdev->ops->add_station)
3079 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3082 switch (dev->ieee80211_ptr->iftype) {
3083 case NL80211_IFTYPE_AP:
3084 case NL80211_IFTYPE_AP_VLAN:
3085 case NL80211_IFTYPE_P2P_GO:
3086 /* parse WME attributes if sta is WME capable */
3087 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3088 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3089 info->attrs[NL80211_ATTR_STA_WME]) {
3090 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3093 nla = info->attrs[NL80211_ATTR_STA_WME];
3094 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3095 nl80211_sta_wme_policy);
3099 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3100 params.uapsd_queues =
3101 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3102 if (params.uapsd_queues &
3103 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3106 if (tb[NL80211_STA_WME_MAX_SP])
3108 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3111 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3114 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3116 /* TDLS peers cannot be added */
3117 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3119 /* but don't bother the driver with it */
3120 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3122 /* must be last in here for error handling */
3123 params.vlan = get_vlan(info, rdev);
3124 if (IS_ERR(params.vlan))
3125 return PTR_ERR(params.vlan);
3127 case NL80211_IFTYPE_MESH_POINT:
3128 /* TDLS peers cannot be added */
3129 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3132 case NL80211_IFTYPE_STATION:
3133 /* Only TDLS peers can be added */
3134 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3136 /* Can only add if TDLS ... */
3137 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3139 /* ... with external setup is supported */
3140 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3147 /* be aware of params.vlan when changing code here */
3149 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3152 dev_put(params.vlan);
3156 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3159 struct net_device *dev = info->user_ptr[1];
3160 u8 *mac_addr = NULL;
3162 if (info->attrs[NL80211_ATTR_MAC])
3163 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3165 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3166 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3167 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3168 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3171 if (!rdev->ops->del_station)
3174 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3177 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3178 int flags, struct net_device *dev,
3179 u8 *dst, u8 *next_hop,
3180 struct mpath_info *pinfo)
3183 struct nlattr *pinfoattr;
3185 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3189 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3190 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3191 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3192 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3193 goto nla_put_failure;
3195 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3197 goto nla_put_failure;
3198 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3199 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3201 goto nla_put_failure;
3202 if (((pinfo->filled & MPATH_INFO_SN) &&
3203 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3204 ((pinfo->filled & MPATH_INFO_METRIC) &&
3205 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3207 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3208 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3210 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3211 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3213 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3214 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3215 pinfo->discovery_timeout)) ||
3216 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3217 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3218 pinfo->discovery_retries)))
3219 goto nla_put_failure;
3221 nla_nest_end(msg, pinfoattr);
3223 return genlmsg_end(msg, hdr);
3226 genlmsg_cancel(msg, hdr);
3230 static int nl80211_dump_mpath(struct sk_buff *skb,
3231 struct netlink_callback *cb)
3233 struct mpath_info pinfo;
3234 struct cfg80211_registered_device *dev;
3235 struct net_device *netdev;
3237 u8 next_hop[ETH_ALEN];
3238 int path_idx = cb->args[1];
3241 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3245 if (!dev->ops->dump_mpath) {
3250 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3256 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3257 dst, next_hop, &pinfo);
3263 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3264 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3265 netdev, dst, next_hop,
3274 cb->args[1] = path_idx;
3277 nl80211_finish_netdev_dump(dev);
3281 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3285 struct net_device *dev = info->user_ptr[1];
3286 struct mpath_info pinfo;
3287 struct sk_buff *msg;
3289 u8 next_hop[ETH_ALEN];
3291 memset(&pinfo, 0, sizeof(pinfo));
3293 if (!info->attrs[NL80211_ATTR_MAC])
3296 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3298 if (!rdev->ops->get_mpath)
3301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3304 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3308 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3312 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3313 dev, dst, next_hop, &pinfo) < 0) {
3318 return genlmsg_reply(msg, info);
3321 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3324 struct net_device *dev = info->user_ptr[1];
3326 u8 *next_hop = NULL;
3328 if (!info->attrs[NL80211_ATTR_MAC])
3331 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3334 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3335 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3337 if (!rdev->ops->change_mpath)
3340 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3343 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3346 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3349 struct net_device *dev = info->user_ptr[1];
3351 u8 *next_hop = NULL;
3353 if (!info->attrs[NL80211_ATTR_MAC])
3356 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3359 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3360 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3362 if (!rdev->ops->add_mpath)
3365 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3368 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3371 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3373 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3374 struct net_device *dev = info->user_ptr[1];
3377 if (info->attrs[NL80211_ATTR_MAC])
3378 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3380 if (!rdev->ops->del_mpath)
3383 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3386 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3389 struct net_device *dev = info->user_ptr[1];
3390 struct bss_parameters params;
3392 memset(¶ms, 0, sizeof(params));
3393 /* default to not changing parameters */
3394 params.use_cts_prot = -1;
3395 params.use_short_preamble = -1;
3396 params.use_short_slot_time = -1;
3397 params.ap_isolate = -1;
3398 params.ht_opmode = -1;
3400 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3401 params.use_cts_prot =
3402 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3403 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3404 params.use_short_preamble =
3405 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3406 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3407 params.use_short_slot_time =
3408 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3409 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3410 params.basic_rates =
3411 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3412 params.basic_rates_len =
3413 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3415 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3416 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3417 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3419 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3421 if (!rdev->ops->change_bss)
3424 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3425 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3428 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3431 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3432 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3433 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3434 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3435 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3436 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3437 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3440 static int parse_reg_rule(struct nlattr *tb[],
3441 struct ieee80211_reg_rule *reg_rule)
3443 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3444 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3446 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3448 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3450 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3452 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3454 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3457 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3459 freq_range->start_freq_khz =
3460 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3461 freq_range->end_freq_khz =
3462 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3463 freq_range->max_bandwidth_khz =
3464 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3466 power_rule->max_eirp =
3467 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3469 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3470 power_rule->max_antenna_gain =
3471 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3476 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3482 * You should only get this when cfg80211 hasn't yet initialized
3483 * completely when built-in to the kernel right between the time
3484 * window between nl80211_init() and regulatory_init(), if that is
3487 mutex_lock(&cfg80211_mutex);
3488 if (unlikely(!cfg80211_regdomain)) {
3489 mutex_unlock(&cfg80211_mutex);
3490 return -EINPROGRESS;
3492 mutex_unlock(&cfg80211_mutex);
3494 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3497 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3499 r = regulatory_hint_user(data);
3504 static int nl80211_get_mesh_config(struct sk_buff *skb,
3505 struct genl_info *info)
3507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3508 struct net_device *dev = info->user_ptr[1];
3509 struct wireless_dev *wdev = dev->ieee80211_ptr;
3510 struct mesh_config cur_params;
3513 struct nlattr *pinfoattr;
3514 struct sk_buff *msg;
3516 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3519 if (!rdev->ops->get_mesh_config)
3523 /* If not connected, get default parameters */
3524 if (!wdev->mesh_id_len)
3525 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3527 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3534 /* Draw up a netlink message to send back */
3535 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3538 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3539 NL80211_CMD_GET_MESH_CONFIG);
3542 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3544 goto nla_put_failure;
3545 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3546 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3547 cur_params.dot11MeshRetryTimeout) ||
3548 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3549 cur_params.dot11MeshConfirmTimeout) ||
3550 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3551 cur_params.dot11MeshHoldingTimeout) ||
3552 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3553 cur_params.dot11MeshMaxPeerLinks) ||
3554 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3555 cur_params.dot11MeshMaxRetries) ||
3556 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3557 cur_params.dot11MeshTTL) ||
3558 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3559 cur_params.element_ttl) ||
3560 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3561 cur_params.auto_open_plinks) ||
3562 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3563 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3564 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3565 cur_params.dot11MeshHWMPmaxPREQretries) ||
3566 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3567 cur_params.path_refresh_time) ||
3568 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3569 cur_params.min_discovery_timeout) ||
3570 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3571 cur_params.dot11MeshHWMPactivePathTimeout) ||
3572 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3573 cur_params.dot11MeshHWMPpreqMinInterval) ||
3574 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3575 cur_params.dot11MeshHWMPperrMinInterval) ||
3576 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3577 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3578 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3579 cur_params.dot11MeshHWMPRootMode) ||
3580 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3581 cur_params.dot11MeshHWMPRannInterval) ||
3582 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3583 cur_params.dot11MeshGateAnnouncementProtocol) ||
3584 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3585 cur_params.dot11MeshForwarding) ||
3586 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3587 cur_params.rssi_threshold) ||
3588 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3589 cur_params.ht_opmode) ||
3590 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3591 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3592 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3593 cur_params.dot11MeshHWMProotInterval) ||
3594 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3595 cur_params.dot11MeshHWMPconfirmationInterval))
3596 goto nla_put_failure;
3597 nla_nest_end(msg, pinfoattr);
3598 genlmsg_end(msg, hdr);
3599 return genlmsg_reply(msg, info);
3602 genlmsg_cancel(msg, hdr);
3608 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3609 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3610 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3611 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3612 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3613 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3614 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3615 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3616 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3617 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3618 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3619 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3620 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3621 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3622 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3623 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3624 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3625 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3626 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3627 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3628 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3629 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3630 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3631 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3632 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3633 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3636 static const struct nla_policy
3637 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3638 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3639 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3640 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3641 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3642 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3643 .len = IEEE80211_MAX_DATA_LEN },
3644 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3647 static int nl80211_parse_mesh_config(struct genl_info *info,
3648 struct mesh_config *cfg,
3651 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3654 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3656 if (table[attr_num]) {\
3657 cfg->param = nla_fn(table[attr_num]); \
3658 mask |= (1 << (attr_num - 1)); \
3663 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3665 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3666 info->attrs[NL80211_ATTR_MESH_CONFIG],
3667 nl80211_meshconf_params_policy))
3670 /* This makes sure that there aren't more than 32 mesh config
3671 * parameters (otherwise our bitfield scheme would not work.) */
3672 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3674 /* Fill in the params struct */
3675 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3676 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3678 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3679 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3681 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3682 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3685 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3688 mask, NL80211_MESHCONF_MAX_RETRIES,
3690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3691 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3692 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3693 mask, NL80211_MESHCONF_ELEMENT_TTL,
3695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3696 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3698 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3699 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3702 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3705 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3708 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3710 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3711 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3714 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3717 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3720 dot11MeshHWMPnetDiameterTraversalTime, mask,
3721 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3723 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3724 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3725 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3726 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3729 dot11MeshGateAnnouncementProtocol, mask,
3730 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3732 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3733 mask, NL80211_MESHCONF_FORWARDING,
3735 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3736 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3738 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3739 mask, NL80211_MESHCONF_HT_OPMODE,
3741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3743 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3745 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3746 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3748 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3749 dot11MeshHWMPconfirmationInterval, mask,
3750 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3757 #undef FILL_IN_MESH_PARAM_IF_SET
3760 static int nl80211_parse_mesh_setup(struct genl_info *info,
3761 struct mesh_setup *setup)
3763 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3765 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3767 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3768 info->attrs[NL80211_ATTR_MESH_SETUP],
3769 nl80211_mesh_setup_params_policy))
3772 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3773 setup->sync_method =
3774 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3775 IEEE80211_SYNC_METHOD_VENDOR :
3776 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3778 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3779 setup->path_sel_proto =
3780 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3781 IEEE80211_PATH_PROTOCOL_VENDOR :
3782 IEEE80211_PATH_PROTOCOL_HWMP;
3784 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3785 setup->path_metric =
3786 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3787 IEEE80211_PATH_METRIC_VENDOR :
3788 IEEE80211_PATH_METRIC_AIRTIME;
3791 if (tb[NL80211_MESH_SETUP_IE]) {
3792 struct nlattr *ieattr =
3793 tb[NL80211_MESH_SETUP_IE];
3794 if (!is_valid_ie_attr(ieattr))
3796 setup->ie = nla_data(ieattr);
3797 setup->ie_len = nla_len(ieattr);
3799 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3800 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3805 static int nl80211_update_mesh_config(struct sk_buff *skb,
3806 struct genl_info *info)
3808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3809 struct net_device *dev = info->user_ptr[1];
3810 struct wireless_dev *wdev = dev->ieee80211_ptr;
3811 struct mesh_config cfg;
3815 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3818 if (!rdev->ops->update_mesh_config)
3821 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3826 if (!wdev->mesh_id_len)
3830 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3838 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3840 struct sk_buff *msg;
3842 struct nlattr *nl_reg_rules;
3846 mutex_lock(&cfg80211_mutex);
3848 if (!cfg80211_regdomain)
3851 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3857 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3858 NL80211_CMD_GET_REG);
3862 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3863 cfg80211_regdomain->alpha2) ||
3864 (cfg80211_regdomain->dfs_region &&
3865 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3866 cfg80211_regdomain->dfs_region)))
3867 goto nla_put_failure;
3869 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3871 goto nla_put_failure;
3873 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3874 struct nlattr *nl_reg_rule;
3875 const struct ieee80211_reg_rule *reg_rule;
3876 const struct ieee80211_freq_range *freq_range;
3877 const struct ieee80211_power_rule *power_rule;
3879 reg_rule = &cfg80211_regdomain->reg_rules[i];
3880 freq_range = ®_rule->freq_range;
3881 power_rule = ®_rule->power_rule;
3883 nl_reg_rule = nla_nest_start(msg, i);
3885 goto nla_put_failure;
3887 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3889 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3890 freq_range->start_freq_khz) ||
3891 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3892 freq_range->end_freq_khz) ||
3893 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3894 freq_range->max_bandwidth_khz) ||
3895 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3896 power_rule->max_antenna_gain) ||
3897 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3898 power_rule->max_eirp))
3899 goto nla_put_failure;
3901 nla_nest_end(msg, nl_reg_rule);
3904 nla_nest_end(msg, nl_reg_rules);
3906 genlmsg_end(msg, hdr);
3907 err = genlmsg_reply(msg, info);
3911 genlmsg_cancel(msg, hdr);
3916 mutex_unlock(&cfg80211_mutex);
3920 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3922 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3923 struct nlattr *nl_reg_rule;
3924 char *alpha2 = NULL;
3925 int rem_reg_rules = 0, r = 0;
3926 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3928 struct ieee80211_regdomain *rd = NULL;
3930 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3933 if (!info->attrs[NL80211_ATTR_REG_RULES])
3936 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3938 if (info->attrs[NL80211_ATTR_DFS_REGION])
3939 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3941 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3944 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3948 mutex_lock(&cfg80211_mutex);
3950 if (!reg_is_valid_request(alpha2)) {
3955 size_of_regd = sizeof(struct ieee80211_regdomain) +
3956 (num_rules * sizeof(struct ieee80211_reg_rule));
3958 rd = kzalloc(size_of_regd, GFP_KERNEL);
3964 rd->n_reg_rules = num_rules;
3965 rd->alpha2[0] = alpha2[0];
3966 rd->alpha2[1] = alpha2[1];
3969 * Disable DFS master mode if the DFS region was
3970 * not supported or known on this kernel.
3972 if (reg_supported_dfs_region(dfs_region))
3973 rd->dfs_region = dfs_region;
3975 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3977 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3978 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3980 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3986 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3992 BUG_ON(rule_idx != num_rules);
3996 mutex_unlock(&cfg80211_mutex);
4001 mutex_unlock(&cfg80211_mutex);
4006 static int validate_scan_freqs(struct nlattr *freqs)
4008 struct nlattr *attr1, *attr2;
4009 int n_channels = 0, tmp1, tmp2;
4011 nla_for_each_nested(attr1, freqs, tmp1) {
4014 * Some hardware has a limited channel list for
4015 * scanning, and it is pretty much nonsensical
4016 * to scan for a channel twice, so disallow that
4017 * and don't require drivers to check that the
4018 * channel list they get isn't longer than what
4019 * they can scan, as long as they can scan all
4020 * the channels they registered at once.
4022 nla_for_each_nested(attr2, freqs, tmp2)
4023 if (attr1 != attr2 &&
4024 nla_get_u32(attr1) == nla_get_u32(attr2))
4031 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4034 struct net_device *dev = info->user_ptr[1];
4035 struct cfg80211_scan_request *request;
4036 struct nlattr *attr;
4037 struct wiphy *wiphy;
4038 int err, tmp, n_ssids = 0, n_channels, i;
4041 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4044 wiphy = &rdev->wiphy;
4046 if (!rdev->ops->scan)
4052 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4053 n_channels = validate_scan_freqs(
4054 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4058 enum ieee80211_band band;
4061 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4062 if (wiphy->bands[band])
4063 n_channels += wiphy->bands[band]->n_channels;
4066 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4067 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4070 if (n_ssids > wiphy->max_scan_ssids)
4073 if (info->attrs[NL80211_ATTR_IE])
4074 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4078 if (ie_len > wiphy->max_scan_ie_len)
4081 request = kzalloc(sizeof(*request)
4082 + sizeof(*request->ssids) * n_ssids
4083 + sizeof(*request->channels) * n_channels
4084 + ie_len, GFP_KERNEL);
4089 request->ssids = (void *)&request->channels[n_channels];
4090 request->n_ssids = n_ssids;
4093 request->ie = (void *)(request->ssids + n_ssids);
4095 request->ie = (void *)(request->channels + n_channels);
4099 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4100 /* user specified, bail out if channel not found */
4101 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4102 struct ieee80211_channel *chan;
4104 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4111 /* ignore disabled channels */
4112 if (chan->flags & IEEE80211_CHAN_DISABLED)
4115 request->channels[i] = chan;
4119 enum ieee80211_band band;
4122 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4124 if (!wiphy->bands[band])
4126 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4127 struct ieee80211_channel *chan;
4129 chan = &wiphy->bands[band]->channels[j];
4131 if (chan->flags & IEEE80211_CHAN_DISABLED)
4134 request->channels[i] = chan;
4145 request->n_channels = i;
4148 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4149 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4150 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4154 request->ssids[i].ssid_len = nla_len(attr);
4155 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4160 if (info->attrs[NL80211_ATTR_IE]) {
4161 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4162 memcpy((void *)request->ie,
4163 nla_data(info->attrs[NL80211_ATTR_IE]),
4167 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4168 if (wiphy->bands[i])
4170 (1 << wiphy->bands[i]->n_bitrates) - 1;
4172 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4173 nla_for_each_nested(attr,
4174 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4176 enum ieee80211_band band = nla_type(attr);
4178 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4182 err = ieee80211_get_ratemask(wiphy->bands[band],
4185 &request->rates[band]);
4192 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4195 request->wiphy = &rdev->wiphy;
4197 rdev->scan_req = request;
4198 err = rdev->ops->scan(&rdev->wiphy, dev, request);
4201 nl80211_send_scan_start(rdev, dev);
4205 rdev->scan_req = NULL;
4212 static int nl80211_start_sched_scan(struct sk_buff *skb,
4213 struct genl_info *info)
4215 struct cfg80211_sched_scan_request *request;
4216 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4217 struct net_device *dev = info->user_ptr[1];
4218 struct nlattr *attr;
4219 struct wiphy *wiphy;
4220 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4222 enum ieee80211_band band;
4224 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4226 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4227 !rdev->ops->sched_scan_start)
4230 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4233 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4236 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4240 wiphy = &rdev->wiphy;
4242 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4243 n_channels = validate_scan_freqs(
4244 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4250 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4251 if (wiphy->bands[band])
4252 n_channels += wiphy->bands[band]->n_channels;
4255 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4256 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4260 if (n_ssids > wiphy->max_sched_scan_ssids)
4263 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4264 nla_for_each_nested(attr,
4265 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4269 if (n_match_sets > wiphy->max_match_sets)
4272 if (info->attrs[NL80211_ATTR_IE])
4273 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4277 if (ie_len > wiphy->max_sched_scan_ie_len)
4280 mutex_lock(&rdev->sched_scan_mtx);
4282 if (rdev->sched_scan_req) {
4287 request = kzalloc(sizeof(*request)
4288 + sizeof(*request->ssids) * n_ssids
4289 + sizeof(*request->match_sets) * n_match_sets
4290 + sizeof(*request->channels) * n_channels
4291 + ie_len, GFP_KERNEL);
4298 request->ssids = (void *)&request->channels[n_channels];
4299 request->n_ssids = n_ssids;
4302 request->ie = (void *)(request->ssids + n_ssids);
4304 request->ie = (void *)(request->channels + n_channels);
4309 request->match_sets = (void *)(request->ie + ie_len);
4310 else if (request->ssids)
4311 request->match_sets =
4312 (void *)(request->ssids + n_ssids);
4314 request->match_sets =
4315 (void *)(request->channels + n_channels);
4317 request->n_match_sets = n_match_sets;
4320 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4321 /* user specified, bail out if channel not found */
4322 nla_for_each_nested(attr,
4323 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4325 struct ieee80211_channel *chan;
4327 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4334 /* ignore disabled channels */
4335 if (chan->flags & IEEE80211_CHAN_DISABLED)
4338 request->channels[i] = chan;
4343 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4345 if (!wiphy->bands[band])
4347 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4348 struct ieee80211_channel *chan;
4350 chan = &wiphy->bands[band]->channels[j];
4352 if (chan->flags & IEEE80211_CHAN_DISABLED)
4355 request->channels[i] = chan;
4366 request->n_channels = i;
4369 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4370 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4372 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4376 request->ssids[i].ssid_len = nla_len(attr);
4377 memcpy(request->ssids[i].ssid, nla_data(attr),
4384 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4385 nla_for_each_nested(attr,
4386 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4388 struct nlattr *ssid, *rssi;
4390 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4391 nla_data(attr), nla_len(attr),
4392 nl80211_match_policy);
4393 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4395 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4399 memcpy(request->match_sets[i].ssid.ssid,
4400 nla_data(ssid), nla_len(ssid));
4401 request->match_sets[i].ssid.ssid_len =
4404 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4406 request->rssi_thold = nla_get_u32(rssi);
4408 request->rssi_thold =
4409 NL80211_SCAN_RSSI_THOLD_OFF;
4414 if (info->attrs[NL80211_ATTR_IE]) {
4415 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4416 memcpy((void *)request->ie,
4417 nla_data(info->attrs[NL80211_ATTR_IE]),
4422 request->wiphy = &rdev->wiphy;
4423 request->interval = interval;
4425 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4427 rdev->sched_scan_req = request;
4428 nl80211_send_sched_scan(rdev, dev,
4429 NL80211_CMD_START_SCHED_SCAN);
4436 mutex_unlock(&rdev->sched_scan_mtx);
4440 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4441 struct genl_info *info)
4443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4446 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4447 !rdev->ops->sched_scan_stop)
4450 mutex_lock(&rdev->sched_scan_mtx);
4451 err = __cfg80211_stop_sched_scan(rdev, false);
4452 mutex_unlock(&rdev->sched_scan_mtx);
4457 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4459 struct cfg80211_registered_device *rdev,
4460 struct wireless_dev *wdev,
4461 struct cfg80211_internal_bss *intbss)
4463 struct cfg80211_bss *res = &intbss->pub;
4467 ASSERT_WDEV_LOCK(wdev);
4469 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4470 NL80211_CMD_NEW_SCAN_RESULTS);
4474 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4476 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4477 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4478 goto nla_put_failure;
4480 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4482 goto nla_put_failure;
4483 if ((!is_zero_ether_addr(res->bssid) &&
4484 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4485 (res->information_elements && res->len_information_elements &&
4486 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4487 res->len_information_elements,
4488 res->information_elements)) ||
4489 (res->beacon_ies && res->len_beacon_ies &&
4490 res->beacon_ies != res->information_elements &&
4491 nla_put(msg, NL80211_BSS_BEACON_IES,
4492 res->len_beacon_ies, res->beacon_ies)))
4493 goto nla_put_failure;
4495 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4496 goto nla_put_failure;
4497 if (res->beacon_interval &&
4498 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4499 goto nla_put_failure;
4500 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4501 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4502 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4503 jiffies_to_msecs(jiffies - intbss->ts)))
4504 goto nla_put_failure;
4506 switch (rdev->wiphy.signal_type) {
4507 case CFG80211_SIGNAL_TYPE_MBM:
4508 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4509 goto nla_put_failure;
4511 case CFG80211_SIGNAL_TYPE_UNSPEC:
4512 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4513 goto nla_put_failure;
4519 switch (wdev->iftype) {
4520 case NL80211_IFTYPE_P2P_CLIENT:
4521 case NL80211_IFTYPE_STATION:
4522 if (intbss == wdev->current_bss &&
4523 nla_put_u32(msg, NL80211_BSS_STATUS,
4524 NL80211_BSS_STATUS_ASSOCIATED))
4525 goto nla_put_failure;
4527 case NL80211_IFTYPE_ADHOC:
4528 if (intbss == wdev->current_bss &&
4529 nla_put_u32(msg, NL80211_BSS_STATUS,
4530 NL80211_BSS_STATUS_IBSS_JOINED))
4531 goto nla_put_failure;
4537 nla_nest_end(msg, bss);
4539 return genlmsg_end(msg, hdr);
4542 genlmsg_cancel(msg, hdr);
4546 static int nl80211_dump_scan(struct sk_buff *skb,
4547 struct netlink_callback *cb)
4549 struct cfg80211_registered_device *rdev;
4550 struct net_device *dev;
4551 struct cfg80211_internal_bss *scan;
4552 struct wireless_dev *wdev;
4553 int start = cb->args[1], idx = 0;
4556 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4560 wdev = dev->ieee80211_ptr;
4563 spin_lock_bh(&rdev->bss_lock);
4564 cfg80211_bss_expire(rdev);
4566 cb->seq = rdev->bss_generation;
4568 list_for_each_entry(scan, &rdev->bss_list, list) {
4571 if (nl80211_send_bss(skb, cb,
4572 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4573 rdev, wdev, scan) < 0) {
4579 spin_unlock_bh(&rdev->bss_lock);
4583 nl80211_finish_netdev_dump(rdev);
4588 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4589 int flags, struct net_device *dev,
4590 struct survey_info *survey)
4593 struct nlattr *infoattr;
4595 hdr = nl80211hdr_put(msg, pid, seq, flags,
4596 NL80211_CMD_NEW_SURVEY_RESULTS);
4600 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4601 goto nla_put_failure;
4603 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4605 goto nla_put_failure;
4607 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4608 survey->channel->center_freq))
4609 goto nla_put_failure;
4611 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4612 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4613 goto nla_put_failure;
4614 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4615 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4616 goto nla_put_failure;
4617 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4618 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4619 survey->channel_time))
4620 goto nla_put_failure;
4621 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4622 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4623 survey->channel_time_busy))
4624 goto nla_put_failure;
4625 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4626 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4627 survey->channel_time_ext_busy))
4628 goto nla_put_failure;
4629 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4630 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4631 survey->channel_time_rx))
4632 goto nla_put_failure;
4633 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4634 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4635 survey->channel_time_tx))
4636 goto nla_put_failure;
4638 nla_nest_end(msg, infoattr);
4640 return genlmsg_end(msg, hdr);
4643 genlmsg_cancel(msg, hdr);
4647 static int nl80211_dump_survey(struct sk_buff *skb,
4648 struct netlink_callback *cb)
4650 struct survey_info survey;
4651 struct cfg80211_registered_device *dev;
4652 struct net_device *netdev;
4653 int survey_idx = cb->args[1];
4656 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4660 if (!dev->ops->dump_survey) {
4666 struct ieee80211_channel *chan;
4668 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4675 /* Survey without a channel doesn't make sense */
4676 if (!survey.channel) {
4681 chan = ieee80211_get_channel(&dev->wiphy,
4682 survey.channel->center_freq);
4683 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4688 if (nl80211_send_survey(skb,
4689 NETLINK_CB(cb->skb).pid,
4690 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4698 cb->args[1] = survey_idx;
4701 nl80211_finish_netdev_dump(dev);
4705 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4707 return auth_type <= NL80211_AUTHTYPE_MAX;
4710 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4712 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4713 NL80211_WPA_VERSION_2));
4716 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4718 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4719 struct net_device *dev = info->user_ptr[1];
4720 struct ieee80211_channel *chan;
4721 const u8 *bssid, *ssid, *ie = NULL;
4722 int err, ssid_len, ie_len = 0;
4723 enum nl80211_auth_type auth_type;
4724 struct key_parse key;
4725 bool local_state_change;
4727 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4730 if (!info->attrs[NL80211_ATTR_MAC])
4733 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4736 if (!info->attrs[NL80211_ATTR_SSID])
4739 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4742 err = nl80211_parse_key(info, &key);
4747 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4749 if (!key.p.key || !key.p.key_len)
4751 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4752 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4753 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4754 key.p.key_len != WLAN_KEY_LEN_WEP104))
4766 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4767 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4776 if (!rdev->ops->auth)
4779 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4780 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4783 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4784 chan = ieee80211_get_channel(&rdev->wiphy,
4785 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4786 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4789 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4790 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4792 if (info->attrs[NL80211_ATTR_IE]) {
4793 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4794 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4797 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4798 if (!nl80211_valid_auth_type(auth_type))
4801 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4804 * Since we no longer track auth state, ignore
4805 * requests to only change local state.
4807 if (local_state_change)
4810 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4811 ssid, ssid_len, ie, ie_len,
4812 key.p.key, key.p.key_len, key.idx);
4815 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4816 struct genl_info *info,
4817 struct cfg80211_crypto_settings *settings,
4820 memset(settings, 0, sizeof(*settings));
4822 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4824 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4826 proto = nla_get_u16(
4827 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4828 settings->control_port_ethertype = cpu_to_be16(proto);
4829 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4832 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4833 settings->control_port_no_encrypt = true;
4835 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4837 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4841 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4842 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4843 settings->n_ciphers_pairwise = len / sizeof(u32);
4845 if (len % sizeof(u32))
4848 if (settings->n_ciphers_pairwise > cipher_limit)
4851 memcpy(settings->ciphers_pairwise, data, len);
4853 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4854 if (!cfg80211_supported_cipher_suite(
4856 settings->ciphers_pairwise[i]))
4860 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4861 settings->cipher_group =
4862 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4863 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4864 settings->cipher_group))
4868 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4869 settings->wpa_versions =
4870 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4871 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4875 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4879 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4880 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4881 settings->n_akm_suites = len / sizeof(u32);
4883 if (len % sizeof(u32))
4886 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4889 memcpy(settings->akm_suites, data, len);
4895 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4898 struct net_device *dev = info->user_ptr[1];
4899 struct cfg80211_crypto_settings crypto;
4900 struct ieee80211_channel *chan;
4901 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4902 int err, ssid_len, ie_len = 0;
4903 bool use_mfp = false;
4905 struct ieee80211_ht_cap *ht_capa = NULL;
4906 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4908 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4911 if (!info->attrs[NL80211_ATTR_MAC] ||
4912 !info->attrs[NL80211_ATTR_SSID] ||
4913 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4916 if (!rdev->ops->assoc)
4919 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4920 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4923 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4925 chan = ieee80211_get_channel(&rdev->wiphy,
4926 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4927 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4930 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4931 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4933 if (info->attrs[NL80211_ATTR_IE]) {
4934 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4935 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4938 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4939 enum nl80211_mfp mfp =
4940 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4941 if (mfp == NL80211_MFP_REQUIRED)
4943 else if (mfp != NL80211_MFP_NO)
4947 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4948 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4950 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4951 flags |= ASSOC_REQ_DISABLE_HT;
4953 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4955 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4957 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4960 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4963 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4965 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4966 ssid, ssid_len, ie, ie_len, use_mfp,
4967 &crypto, flags, ht_capa,
4973 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4976 struct net_device *dev = info->user_ptr[1];
4977 const u8 *ie = NULL, *bssid;
4980 bool local_state_change;
4982 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4985 if (!info->attrs[NL80211_ATTR_MAC])
4988 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4991 if (!rdev->ops->deauth)
4994 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4995 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4998 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5000 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5001 if (reason_code == 0) {
5002 /* Reason Code 0 is reserved */
5006 if (info->attrs[NL80211_ATTR_IE]) {
5007 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5008 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5011 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5013 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5014 local_state_change);
5017 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5020 struct net_device *dev = info->user_ptr[1];
5021 const u8 *ie = NULL, *bssid;
5024 bool local_state_change;
5026 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5029 if (!info->attrs[NL80211_ATTR_MAC])
5032 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5035 if (!rdev->ops->disassoc)
5038 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5039 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5042 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5044 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5045 if (reason_code == 0) {
5046 /* Reason Code 0 is reserved */
5050 if (info->attrs[NL80211_ATTR_IE]) {
5051 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5052 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5055 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5057 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5058 local_state_change);
5062 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5063 int mcast_rate[IEEE80211_NUM_BANDS],
5066 struct wiphy *wiphy = &rdev->wiphy;
5070 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5071 struct ieee80211_supported_band *sband;
5073 sband = wiphy->bands[band];
5077 for (i = 0; i < sband->n_bitrates; i++) {
5078 if (sband->bitrates[i].bitrate == rateval) {
5079 mcast_rate[band] = i + 1;
5089 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5092 struct net_device *dev = info->user_ptr[1];
5093 struct cfg80211_ibss_params ibss;
5094 struct wiphy *wiphy;
5095 struct cfg80211_cached_keys *connkeys = NULL;
5098 memset(&ibss, 0, sizeof(ibss));
5100 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5103 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5104 !info->attrs[NL80211_ATTR_SSID] ||
5105 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5108 ibss.beacon_interval = 100;
5110 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5111 ibss.beacon_interval =
5112 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5113 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5117 if (!rdev->ops->join_ibss)
5120 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5123 wiphy = &rdev->wiphy;
5125 if (info->attrs[NL80211_ATTR_MAC]) {
5126 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5128 if (!is_valid_ether_addr(ibss.bssid))
5131 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5132 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5134 if (info->attrs[NL80211_ATTR_IE]) {
5135 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5136 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5139 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5140 enum nl80211_channel_type channel_type;
5142 if (!nl80211_valid_channel_type(info, &channel_type))
5145 if (channel_type != NL80211_CHAN_NO_HT &&
5146 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5149 ibss.channel_type = channel_type;
5151 ibss.channel_type = NL80211_CHAN_NO_HT;
5154 ibss.channel = rdev_freq_to_chan(rdev,
5155 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5157 if (!ibss.channel ||
5158 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5159 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5162 /* Both channels should be able to initiate communication */
5163 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5164 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5165 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5169 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5170 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5172 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5174 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5176 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5177 struct ieee80211_supported_band *sband =
5178 wiphy->bands[ibss.channel->band];
5180 err = ieee80211_get_ratemask(sband, rates, n_rates,
5186 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5187 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5188 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5191 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5192 connkeys = nl80211_parse_connkeys(rdev,
5193 info->attrs[NL80211_ATTR_KEYS]);
5194 if (IS_ERR(connkeys))
5195 return PTR_ERR(connkeys);
5199 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5201 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5207 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5210 struct net_device *dev = info->user_ptr[1];
5212 if (!rdev->ops->leave_ibss)
5215 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5218 return cfg80211_leave_ibss(rdev, dev, false);
5221 #ifdef CONFIG_NL80211_TESTMODE
5222 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5226 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5231 if (!info->attrs[NL80211_ATTR_TESTDATA])
5235 if (rdev->ops->testmode_cmd) {
5236 rdev->testmode_info = info;
5237 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5238 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5239 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5240 rdev->testmode_info = NULL;
5246 static int nl80211_testmode_dump(struct sk_buff *skb,
5247 struct netlink_callback *cb)
5249 struct cfg80211_registered_device *rdev;
5257 * 0 is a valid index, but not valid for args[0],
5258 * so we need to offset by 1.
5260 phy_idx = cb->args[0] - 1;
5262 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5263 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5268 mutex_lock(&cfg80211_mutex);
5269 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5270 nl80211_fam.attrbuf);
5272 mutex_unlock(&cfg80211_mutex);
5273 return PTR_ERR(rdev);
5275 phy_idx = rdev->wiphy_idx;
5277 mutex_unlock(&cfg80211_mutex);
5279 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5281 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5285 data = nla_data((void *)cb->args[1]);
5286 data_len = nla_len((void *)cb->args[1]);
5289 mutex_lock(&cfg80211_mutex);
5290 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5292 mutex_unlock(&cfg80211_mutex);
5295 cfg80211_lock_rdev(rdev);
5296 mutex_unlock(&cfg80211_mutex);
5298 if (!rdev->ops->testmode_dump) {
5304 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5305 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5306 NL80211_CMD_TESTMODE);
5307 struct nlattr *tmdata;
5309 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5310 genlmsg_cancel(skb, hdr);
5314 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5316 genlmsg_cancel(skb, hdr);
5319 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5321 nla_nest_end(skb, tmdata);
5323 if (err == -ENOBUFS || err == -ENOENT) {
5324 genlmsg_cancel(skb, hdr);
5327 genlmsg_cancel(skb, hdr);
5331 genlmsg_end(skb, hdr);
5336 cb->args[0] = phy_idx + 1;
5338 cfg80211_unlock_rdev(rdev);
5342 static struct sk_buff *
5343 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5344 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5346 struct sk_buff *skb;
5348 struct nlattr *data;
5350 skb = nlmsg_new(approxlen + 100, gfp);
5354 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5360 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5361 goto nla_put_failure;
5362 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5364 ((void **)skb->cb)[0] = rdev;
5365 ((void **)skb->cb)[1] = hdr;
5366 ((void **)skb->cb)[2] = data;
5375 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5378 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5380 if (WARN_ON(!rdev->testmode_info))
5383 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5384 rdev->testmode_info->snd_pid,
5385 rdev->testmode_info->snd_seq,
5388 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5390 int cfg80211_testmode_reply(struct sk_buff *skb)
5392 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5393 void *hdr = ((void **)skb->cb)[1];
5394 struct nlattr *data = ((void **)skb->cb)[2];
5396 if (WARN_ON(!rdev->testmode_info)) {
5401 nla_nest_end(skb, data);
5402 genlmsg_end(skb, hdr);
5403 return genlmsg_reply(skb, rdev->testmode_info);
5405 EXPORT_SYMBOL(cfg80211_testmode_reply);
5407 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5408 int approxlen, gfp_t gfp)
5410 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5412 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5414 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5416 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5418 void *hdr = ((void **)skb->cb)[1];
5419 struct nlattr *data = ((void **)skb->cb)[2];
5421 nla_nest_end(skb, data);
5422 genlmsg_end(skb, hdr);
5423 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5425 EXPORT_SYMBOL(cfg80211_testmode_event);
5428 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5431 struct net_device *dev = info->user_ptr[1];
5432 struct cfg80211_connect_params connect;
5433 struct wiphy *wiphy;
5434 struct cfg80211_cached_keys *connkeys = NULL;
5437 memset(&connect, 0, sizeof(connect));
5439 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5442 if (!info->attrs[NL80211_ATTR_SSID] ||
5443 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5446 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5448 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5449 if (!nl80211_valid_auth_type(connect.auth_type))
5452 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5454 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5456 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5457 NL80211_MAX_NR_CIPHER_SUITES);
5461 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5462 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5465 wiphy = &rdev->wiphy;
5467 connect.bg_scan_period = -1;
5468 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5469 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5470 connect.bg_scan_period =
5471 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5474 if (info->attrs[NL80211_ATTR_MAC])
5475 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5476 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5477 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5479 if (info->attrs[NL80211_ATTR_IE]) {
5480 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5481 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5484 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5486 ieee80211_get_channel(wiphy,
5487 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5488 if (!connect.channel ||
5489 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5493 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5494 connkeys = nl80211_parse_connkeys(rdev,
5495 info->attrs[NL80211_ATTR_KEYS]);
5496 if (IS_ERR(connkeys))
5497 return PTR_ERR(connkeys);
5500 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5501 connect.flags |= ASSOC_REQ_DISABLE_HT;
5503 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5504 memcpy(&connect.ht_capa_mask,
5505 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5506 sizeof(connect.ht_capa_mask));
5508 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5509 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5511 memcpy(&connect.ht_capa,
5512 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5513 sizeof(connect.ht_capa));
5516 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5522 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5525 struct net_device *dev = info->user_ptr[1];
5528 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5529 reason = WLAN_REASON_DEAUTH_LEAVING;
5531 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5536 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5537 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5540 return cfg80211_disconnect(rdev, dev, reason, true);
5543 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5550 if (!info->attrs[NL80211_ATTR_PID])
5553 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5555 net = get_net_ns_by_pid(pid);
5557 return PTR_ERR(net);
5561 /* check if anything to do */
5562 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5563 err = cfg80211_switch_netns(rdev, net);
5569 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5572 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5573 struct cfg80211_pmksa *pmksa) = NULL;
5574 struct net_device *dev = info->user_ptr[1];
5575 struct cfg80211_pmksa pmksa;
5577 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5579 if (!info->attrs[NL80211_ATTR_MAC])
5582 if (!info->attrs[NL80211_ATTR_PMKID])
5585 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5586 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5588 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5589 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5592 switch (info->genlhdr->cmd) {
5593 case NL80211_CMD_SET_PMKSA:
5594 rdev_ops = rdev->ops->set_pmksa;
5596 case NL80211_CMD_DEL_PMKSA:
5597 rdev_ops = rdev->ops->del_pmksa;
5607 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5610 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5613 struct net_device *dev = info->user_ptr[1];
5615 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5616 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5619 if (!rdev->ops->flush_pmksa)
5622 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5625 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5627 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5628 struct net_device *dev = info->user_ptr[1];
5629 u8 action_code, dialog_token;
5633 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5634 !rdev->ops->tdls_mgmt)
5637 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5638 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5639 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5640 !info->attrs[NL80211_ATTR_IE] ||
5641 !info->attrs[NL80211_ATTR_MAC])
5644 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5645 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5646 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5647 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5649 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5650 dialog_token, status_code,
5651 nla_data(info->attrs[NL80211_ATTR_IE]),
5652 nla_len(info->attrs[NL80211_ATTR_IE]));
5655 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5657 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5658 struct net_device *dev = info->user_ptr[1];
5659 enum nl80211_tdls_operation operation;
5662 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5663 !rdev->ops->tdls_oper)
5666 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5667 !info->attrs[NL80211_ATTR_MAC])
5670 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5671 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5673 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5676 static int nl80211_remain_on_channel(struct sk_buff *skb,
5677 struct genl_info *info)
5679 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5680 struct net_device *dev = info->user_ptr[1];
5681 struct ieee80211_channel *chan;
5682 struct sk_buff *msg;
5685 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5689 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5690 !info->attrs[NL80211_ATTR_DURATION])
5693 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5695 if (!rdev->ops->remain_on_channel ||
5696 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5700 * We should be on that channel for at least a minimum amount of
5701 * time (10ms) but no longer than the driver supports.
5703 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5704 duration > rdev->wiphy.max_remain_on_channel_duration)
5707 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5708 !nl80211_valid_channel_type(info, &channel_type))
5711 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5712 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5716 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5720 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5721 NL80211_CMD_REMAIN_ON_CHANNEL);
5728 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5729 channel_type, duration, &cookie);
5734 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5735 goto nla_put_failure;
5737 genlmsg_end(msg, hdr);
5739 return genlmsg_reply(msg, info);
5748 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5749 struct genl_info *info)
5751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5752 struct net_device *dev = info->user_ptr[1];
5755 if (!info->attrs[NL80211_ATTR_COOKIE])
5758 if (!rdev->ops->cancel_remain_on_channel)
5761 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5763 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5766 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5767 u8 *rates, u8 rates_len)
5772 for (i = 0; i < rates_len; i++) {
5773 int rate = (rates[i] & 0x7f) * 5;
5775 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5776 struct ieee80211_rate *srate =
5777 &sband->bitrates[ridx];
5778 if (rate == srate->bitrate) {
5783 if (ridx == sband->n_bitrates)
5784 return 0; /* rate not found */
5790 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5791 u8 *rates, u8 rates_len,
5792 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5796 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5798 for (i = 0; i < rates_len; i++) {
5801 ridx = rates[i] / 8;
5802 rbit = BIT(rates[i] % 8);
5804 /* check validity */
5805 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5808 /* check availability */
5809 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5818 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5819 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5820 .len = NL80211_MAX_SUPP_RATES },
5821 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5822 .len = NL80211_MAX_SUPP_HT_RATES },
5825 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5826 struct genl_info *info)
5828 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5830 struct cfg80211_bitrate_mask mask;
5832 struct net_device *dev = info->user_ptr[1];
5833 struct nlattr *tx_rates;
5834 struct ieee80211_supported_band *sband;
5836 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5839 if (!rdev->ops->set_bitrate_mask)
5842 memset(&mask, 0, sizeof(mask));
5843 /* Default to all rates enabled */
5844 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5845 sband = rdev->wiphy.bands[i];
5846 mask.control[i].legacy =
5847 sband ? (1 << sband->n_bitrates) - 1 : 0;
5849 memcpy(mask.control[i].mcs,
5850 sband->ht_cap.mcs.rx_mask,
5851 sizeof(mask.control[i].mcs));
5853 memset(mask.control[i].mcs, 0,
5854 sizeof(mask.control[i].mcs));
5858 * The nested attribute uses enum nl80211_band as the index. This maps
5859 * directly to the enum ieee80211_band values used in cfg80211.
5861 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5862 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5864 enum ieee80211_band band = nla_type(tx_rates);
5865 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5867 sband = rdev->wiphy.bands[band];
5870 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5871 nla_len(tx_rates), nl80211_txattr_policy);
5872 if (tb[NL80211_TXRATE_LEGACY]) {
5873 mask.control[band].legacy = rateset_to_mask(
5875 nla_data(tb[NL80211_TXRATE_LEGACY]),
5876 nla_len(tb[NL80211_TXRATE_LEGACY]));
5877 if ((mask.control[band].legacy == 0) &&
5878 nla_len(tb[NL80211_TXRATE_LEGACY]))
5881 if (tb[NL80211_TXRATE_MCS]) {
5882 if (!ht_rateset_to_mask(
5884 nla_data(tb[NL80211_TXRATE_MCS]),
5885 nla_len(tb[NL80211_TXRATE_MCS]),
5886 mask.control[band].mcs))
5890 if (mask.control[band].legacy == 0) {
5891 /* don't allow empty legacy rates if HT
5892 * is not even supported. */
5893 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5896 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5897 if (mask.control[band].mcs[i])
5900 /* legacy and mcs rates may not be both empty */
5901 if (i == IEEE80211_HT_MCS_MASK_LEN)
5906 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5909 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5912 struct net_device *dev = info->user_ptr[1];
5913 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5915 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5918 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5919 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5921 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5922 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5923 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5924 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5925 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5926 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5927 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5930 /* not much point in registering if we can't reply */
5931 if (!rdev->ops->mgmt_tx)
5934 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5936 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5937 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5940 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5943 struct net_device *dev = info->user_ptr[1];
5944 struct ieee80211_channel *chan;
5945 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5946 bool channel_type_valid = false;
5951 struct sk_buff *msg = NULL;
5952 unsigned int wait = 0;
5953 bool offchan, no_cck, dont_wait_for_ack;
5955 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5957 if (!info->attrs[NL80211_ATTR_FRAME] ||
5958 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5961 if (!rdev->ops->mgmt_tx)
5964 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5965 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5966 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5967 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5968 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5969 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5970 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5973 if (info->attrs[NL80211_ATTR_DURATION]) {
5974 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5976 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5979 * We should wait on the channel for at least a minimum amount
5980 * of time (10ms) but no longer than the driver supports.
5982 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5983 wait > rdev->wiphy.max_remain_on_channel_duration)
5988 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5989 if (!nl80211_valid_channel_type(info, &channel_type))
5991 channel_type_valid = true;
5994 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5996 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5999 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6001 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6002 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6006 if (!dont_wait_for_ack) {
6007 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6011 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6020 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6021 channel_type_valid, wait,
6022 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6023 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6024 no_cck, dont_wait_for_ack, &cookie);
6029 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6030 goto nla_put_failure;
6032 genlmsg_end(msg, hdr);
6033 return genlmsg_reply(msg, info);
6045 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6048 struct net_device *dev = info->user_ptr[1];
6051 if (!info->attrs[NL80211_ATTR_COOKIE])
6054 if (!rdev->ops->mgmt_tx_cancel_wait)
6057 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6058 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6059 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6060 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6061 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6062 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6065 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6067 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6070 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6073 struct wireless_dev *wdev;
6074 struct net_device *dev = info->user_ptr[1];
6079 if (!info->attrs[NL80211_ATTR_PS_STATE])
6082 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6084 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6087 wdev = dev->ieee80211_ptr;
6089 if (!rdev->ops->set_power_mgmt)
6092 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6094 if (state == wdev->ps)
6097 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6104 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6107 enum nl80211_ps_state ps_state;
6108 struct wireless_dev *wdev;
6109 struct net_device *dev = info->user_ptr[1];
6110 struct sk_buff *msg;
6114 wdev = dev->ieee80211_ptr;
6116 if (!rdev->ops->set_power_mgmt)
6119 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6123 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6124 NL80211_CMD_GET_POWER_SAVE);
6131 ps_state = NL80211_PS_ENABLED;
6133 ps_state = NL80211_PS_DISABLED;
6135 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6136 goto nla_put_failure;
6138 genlmsg_end(msg, hdr);
6139 return genlmsg_reply(msg, info);
6148 static struct nla_policy
6149 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6150 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6151 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6152 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6155 static int nl80211_set_cqm_rssi(struct genl_info *info,
6156 s32 threshold, u32 hysteresis)
6158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6159 struct wireless_dev *wdev;
6160 struct net_device *dev = info->user_ptr[1];
6165 wdev = dev->ieee80211_ptr;
6167 if (!rdev->ops->set_cqm_rssi_config)
6170 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6171 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6174 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6175 threshold, hysteresis);
6178 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6180 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6184 cqm = info->attrs[NL80211_ATTR_CQM];
6190 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6191 nl80211_attr_cqm_policy);
6195 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6196 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6199 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6200 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6201 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6209 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6212 struct net_device *dev = info->user_ptr[1];
6213 struct mesh_config cfg;
6214 struct mesh_setup setup;
6217 /* start with default */
6218 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6219 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6221 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6222 /* and parse parameters if given */
6223 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6228 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6229 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6232 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6233 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6235 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6236 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6237 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6240 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6241 /* parse additional setup parameters if given */
6242 err = nl80211_parse_mesh_setup(info, &setup);
6247 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6248 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6250 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6251 !nl80211_valid_channel_type(info, &channel_type))
6254 setup.channel = rdev_freq_to_chan(rdev,
6255 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6259 setup.channel_type = channel_type;
6261 /* cfg80211_join_mesh() will sort it out */
6262 setup.channel = NULL;
6265 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6268 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6270 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6271 struct net_device *dev = info->user_ptr[1];
6273 return cfg80211_leave_mesh(rdev, dev);
6277 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6280 struct sk_buff *msg;
6283 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6286 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6290 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6291 NL80211_CMD_GET_WOWLAN);
6293 goto nla_put_failure;
6296 struct nlattr *nl_wowlan;
6298 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6300 goto nla_put_failure;
6302 if ((rdev->wowlan->any &&
6303 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6304 (rdev->wowlan->disconnect &&
6305 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6306 (rdev->wowlan->magic_pkt &&
6307 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6308 (rdev->wowlan->gtk_rekey_failure &&
6309 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6310 (rdev->wowlan->eap_identity_req &&
6311 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6312 (rdev->wowlan->four_way_handshake &&
6313 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6314 (rdev->wowlan->rfkill_release &&
6315 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6316 goto nla_put_failure;
6317 if (rdev->wowlan->n_patterns) {
6318 struct nlattr *nl_pats, *nl_pat;
6321 nl_pats = nla_nest_start(msg,
6322 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6324 goto nla_put_failure;
6326 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6327 nl_pat = nla_nest_start(msg, i + 1);
6329 goto nla_put_failure;
6330 pat_len = rdev->wowlan->patterns[i].pattern_len;
6331 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6332 DIV_ROUND_UP(pat_len, 8),
6333 rdev->wowlan->patterns[i].mask) ||
6334 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6336 rdev->wowlan->patterns[i].pattern))
6337 goto nla_put_failure;
6338 nla_nest_end(msg, nl_pat);
6340 nla_nest_end(msg, nl_pats);
6343 nla_nest_end(msg, nl_wowlan);
6346 genlmsg_end(msg, hdr);
6347 return genlmsg_reply(msg, info);
6354 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6357 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6358 struct cfg80211_wowlan no_triggers = {};
6359 struct cfg80211_wowlan new_triggers = {};
6360 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6362 bool prev_enabled = rdev->wowlan;
6364 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6367 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6370 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6371 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6372 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6373 nl80211_wowlan_policy);
6377 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6378 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6380 new_triggers.any = true;
6383 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6384 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6386 new_triggers.disconnect = true;
6389 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6390 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6392 new_triggers.magic_pkt = true;
6395 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6398 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6399 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6401 new_triggers.gtk_rekey_failure = true;
6404 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6405 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6407 new_triggers.eap_identity_req = true;
6410 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6411 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6413 new_triggers.four_way_handshake = true;
6416 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6417 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6419 new_triggers.rfkill_release = true;
6422 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6425 int rem, pat_len, mask_len;
6426 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6428 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6431 if (n_patterns > wowlan->n_patterns)
6434 new_triggers.patterns = kcalloc(n_patterns,
6435 sizeof(new_triggers.patterns[0]),
6437 if (!new_triggers.patterns)
6440 new_triggers.n_patterns = n_patterns;
6443 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6445 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6446 nla_data(pat), nla_len(pat), NULL);
6448 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6449 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6451 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6452 mask_len = DIV_ROUND_UP(pat_len, 8);
6453 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6456 if (pat_len > wowlan->pattern_max_len ||
6457 pat_len < wowlan->pattern_min_len)
6460 new_triggers.patterns[i].mask =
6461 kmalloc(mask_len + pat_len, GFP_KERNEL);
6462 if (!new_triggers.patterns[i].mask) {
6466 new_triggers.patterns[i].pattern =
6467 new_triggers.patterns[i].mask + mask_len;
6468 memcpy(new_triggers.patterns[i].mask,
6469 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6471 new_triggers.patterns[i].pattern_len = pat_len;
6472 memcpy(new_triggers.patterns[i].pattern,
6473 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6479 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6480 struct cfg80211_wowlan *ntrig;
6481 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6487 cfg80211_rdev_free_wowlan(rdev);
6488 rdev->wowlan = ntrig;
6491 cfg80211_rdev_free_wowlan(rdev);
6492 rdev->wowlan = NULL;
6495 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6496 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6500 for (i = 0; i < new_triggers.n_patterns; i++)
6501 kfree(new_triggers.patterns[i].mask);
6502 kfree(new_triggers.patterns);
6507 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6510 struct net_device *dev = info->user_ptr[1];
6511 struct wireless_dev *wdev = dev->ieee80211_ptr;
6512 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6513 struct cfg80211_gtk_rekey_data rekey_data;
6516 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6519 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6520 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6521 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6522 nl80211_rekey_policy);
6526 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6528 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6530 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6533 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6535 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6537 memcpy(rekey_data.replay_ctr,
6538 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6539 NL80211_REPLAY_CTR_LEN);
6542 if (!wdev->current_bss) {
6547 if (!rdev->ops->set_rekey_data) {
6552 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6558 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6559 struct genl_info *info)
6561 struct net_device *dev = info->user_ptr[1];
6562 struct wireless_dev *wdev = dev->ieee80211_ptr;
6564 if (wdev->iftype != NL80211_IFTYPE_AP &&
6565 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6568 if (wdev->ap_unexpected_nlpid)
6571 wdev->ap_unexpected_nlpid = info->snd_pid;
6575 static int nl80211_probe_client(struct sk_buff *skb,
6576 struct genl_info *info)
6578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6579 struct net_device *dev = info->user_ptr[1];
6580 struct wireless_dev *wdev = dev->ieee80211_ptr;
6581 struct sk_buff *msg;
6587 if (wdev->iftype != NL80211_IFTYPE_AP &&
6588 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6591 if (!info->attrs[NL80211_ATTR_MAC])
6594 if (!rdev->ops->probe_client)
6597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6601 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6602 NL80211_CMD_PROBE_CLIENT);
6609 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6611 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6615 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6616 goto nla_put_failure;
6618 genlmsg_end(msg, hdr);
6620 return genlmsg_reply(msg, info);
6629 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6633 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6636 if (rdev->ap_beacons_nlpid)
6639 rdev->ap_beacons_nlpid = info->snd_pid;
6644 #define NL80211_FLAG_NEED_WIPHY 0x01
6645 #define NL80211_FLAG_NEED_NETDEV 0x02
6646 #define NL80211_FLAG_NEED_RTNL 0x04
6647 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6648 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6649 NL80211_FLAG_CHECK_NETDEV_UP)
6651 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6652 struct genl_info *info)
6654 struct cfg80211_registered_device *rdev;
6655 struct net_device *dev;
6657 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6662 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6663 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6667 return PTR_ERR(rdev);
6669 info->user_ptr[0] = rdev;
6670 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6671 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6678 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6679 !netif_running(dev)) {
6680 cfg80211_unlock_rdev(rdev);
6686 info->user_ptr[0] = rdev;
6687 info->user_ptr[1] = dev;
6693 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6694 struct genl_info *info)
6696 if (info->user_ptr[0])
6697 cfg80211_unlock_rdev(info->user_ptr[0]);
6698 if (info->user_ptr[1])
6699 dev_put(info->user_ptr[1]);
6700 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6704 static struct genl_ops nl80211_ops[] = {
6706 .cmd = NL80211_CMD_GET_WIPHY,
6707 .doit = nl80211_get_wiphy,
6708 .dumpit = nl80211_dump_wiphy,
6709 .policy = nl80211_policy,
6710 /* can be retrieved by unprivileged users */
6711 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6714 .cmd = NL80211_CMD_SET_WIPHY,
6715 .doit = nl80211_set_wiphy,
6716 .policy = nl80211_policy,
6717 .flags = GENL_ADMIN_PERM,
6718 .internal_flags = NL80211_FLAG_NEED_RTNL,
6721 .cmd = NL80211_CMD_GET_INTERFACE,
6722 .doit = nl80211_get_interface,
6723 .dumpit = nl80211_dump_interface,
6724 .policy = nl80211_policy,
6725 /* can be retrieved by unprivileged users */
6726 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6729 .cmd = NL80211_CMD_SET_INTERFACE,
6730 .doit = nl80211_set_interface,
6731 .policy = nl80211_policy,
6732 .flags = GENL_ADMIN_PERM,
6733 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6734 NL80211_FLAG_NEED_RTNL,
6737 .cmd = NL80211_CMD_NEW_INTERFACE,
6738 .doit = nl80211_new_interface,
6739 .policy = nl80211_policy,
6740 .flags = GENL_ADMIN_PERM,
6741 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6742 NL80211_FLAG_NEED_RTNL,
6745 .cmd = NL80211_CMD_DEL_INTERFACE,
6746 .doit = nl80211_del_interface,
6747 .policy = nl80211_policy,
6748 .flags = GENL_ADMIN_PERM,
6749 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6750 NL80211_FLAG_NEED_RTNL,
6753 .cmd = NL80211_CMD_GET_KEY,
6754 .doit = nl80211_get_key,
6755 .policy = nl80211_policy,
6756 .flags = GENL_ADMIN_PERM,
6757 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6758 NL80211_FLAG_NEED_RTNL,
6761 .cmd = NL80211_CMD_SET_KEY,
6762 .doit = nl80211_set_key,
6763 .policy = nl80211_policy,
6764 .flags = GENL_ADMIN_PERM,
6765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6766 NL80211_FLAG_NEED_RTNL,
6769 .cmd = NL80211_CMD_NEW_KEY,
6770 .doit = nl80211_new_key,
6771 .policy = nl80211_policy,
6772 .flags = GENL_ADMIN_PERM,
6773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6774 NL80211_FLAG_NEED_RTNL,
6777 .cmd = NL80211_CMD_DEL_KEY,
6778 .doit = nl80211_del_key,
6779 .policy = nl80211_policy,
6780 .flags = GENL_ADMIN_PERM,
6781 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6782 NL80211_FLAG_NEED_RTNL,
6785 .cmd = NL80211_CMD_SET_BEACON,
6786 .policy = nl80211_policy,
6787 .flags = GENL_ADMIN_PERM,
6788 .doit = nl80211_set_beacon,
6789 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6790 NL80211_FLAG_NEED_RTNL,
6793 .cmd = NL80211_CMD_START_AP,
6794 .policy = nl80211_policy,
6795 .flags = GENL_ADMIN_PERM,
6796 .doit = nl80211_start_ap,
6797 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6798 NL80211_FLAG_NEED_RTNL,
6801 .cmd = NL80211_CMD_STOP_AP,
6802 .policy = nl80211_policy,
6803 .flags = GENL_ADMIN_PERM,
6804 .doit = nl80211_stop_ap,
6805 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6806 NL80211_FLAG_NEED_RTNL,
6809 .cmd = NL80211_CMD_GET_STATION,
6810 .doit = nl80211_get_station,
6811 .dumpit = nl80211_dump_station,
6812 .policy = nl80211_policy,
6813 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6814 NL80211_FLAG_NEED_RTNL,
6817 .cmd = NL80211_CMD_SET_STATION,
6818 .doit = nl80211_set_station,
6819 .policy = nl80211_policy,
6820 .flags = GENL_ADMIN_PERM,
6821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6822 NL80211_FLAG_NEED_RTNL,
6825 .cmd = NL80211_CMD_NEW_STATION,
6826 .doit = nl80211_new_station,
6827 .policy = nl80211_policy,
6828 .flags = GENL_ADMIN_PERM,
6829 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6830 NL80211_FLAG_NEED_RTNL,
6833 .cmd = NL80211_CMD_DEL_STATION,
6834 .doit = nl80211_del_station,
6835 .policy = nl80211_policy,
6836 .flags = GENL_ADMIN_PERM,
6837 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6838 NL80211_FLAG_NEED_RTNL,
6841 .cmd = NL80211_CMD_GET_MPATH,
6842 .doit = nl80211_get_mpath,
6843 .dumpit = nl80211_dump_mpath,
6844 .policy = nl80211_policy,
6845 .flags = GENL_ADMIN_PERM,
6846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6847 NL80211_FLAG_NEED_RTNL,
6850 .cmd = NL80211_CMD_SET_MPATH,
6851 .doit = nl80211_set_mpath,
6852 .policy = nl80211_policy,
6853 .flags = GENL_ADMIN_PERM,
6854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6855 NL80211_FLAG_NEED_RTNL,
6858 .cmd = NL80211_CMD_NEW_MPATH,
6859 .doit = nl80211_new_mpath,
6860 .policy = nl80211_policy,
6861 .flags = GENL_ADMIN_PERM,
6862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6863 NL80211_FLAG_NEED_RTNL,
6866 .cmd = NL80211_CMD_DEL_MPATH,
6867 .doit = nl80211_del_mpath,
6868 .policy = nl80211_policy,
6869 .flags = GENL_ADMIN_PERM,
6870 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6871 NL80211_FLAG_NEED_RTNL,
6874 .cmd = NL80211_CMD_SET_BSS,
6875 .doit = nl80211_set_bss,
6876 .policy = nl80211_policy,
6877 .flags = GENL_ADMIN_PERM,
6878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6879 NL80211_FLAG_NEED_RTNL,
6882 .cmd = NL80211_CMD_GET_REG,
6883 .doit = nl80211_get_reg,
6884 .policy = nl80211_policy,
6885 /* can be retrieved by unprivileged users */
6888 .cmd = NL80211_CMD_SET_REG,
6889 .doit = nl80211_set_reg,
6890 .policy = nl80211_policy,
6891 .flags = GENL_ADMIN_PERM,
6894 .cmd = NL80211_CMD_REQ_SET_REG,
6895 .doit = nl80211_req_set_reg,
6896 .policy = nl80211_policy,
6897 .flags = GENL_ADMIN_PERM,
6900 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6901 .doit = nl80211_get_mesh_config,
6902 .policy = nl80211_policy,
6903 /* can be retrieved by unprivileged users */
6904 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6905 NL80211_FLAG_NEED_RTNL,
6908 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6909 .doit = nl80211_update_mesh_config,
6910 .policy = nl80211_policy,
6911 .flags = GENL_ADMIN_PERM,
6912 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6913 NL80211_FLAG_NEED_RTNL,
6916 .cmd = NL80211_CMD_TRIGGER_SCAN,
6917 .doit = nl80211_trigger_scan,
6918 .policy = nl80211_policy,
6919 .flags = GENL_ADMIN_PERM,
6920 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6921 NL80211_FLAG_NEED_RTNL,
6924 .cmd = NL80211_CMD_GET_SCAN,
6925 .policy = nl80211_policy,
6926 .dumpit = nl80211_dump_scan,
6929 .cmd = NL80211_CMD_START_SCHED_SCAN,
6930 .doit = nl80211_start_sched_scan,
6931 .policy = nl80211_policy,
6932 .flags = GENL_ADMIN_PERM,
6933 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6934 NL80211_FLAG_NEED_RTNL,
6937 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6938 .doit = nl80211_stop_sched_scan,
6939 .policy = nl80211_policy,
6940 .flags = GENL_ADMIN_PERM,
6941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6942 NL80211_FLAG_NEED_RTNL,
6945 .cmd = NL80211_CMD_AUTHENTICATE,
6946 .doit = nl80211_authenticate,
6947 .policy = nl80211_policy,
6948 .flags = GENL_ADMIN_PERM,
6949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6950 NL80211_FLAG_NEED_RTNL,
6953 .cmd = NL80211_CMD_ASSOCIATE,
6954 .doit = nl80211_associate,
6955 .policy = nl80211_policy,
6956 .flags = GENL_ADMIN_PERM,
6957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6958 NL80211_FLAG_NEED_RTNL,
6961 .cmd = NL80211_CMD_DEAUTHENTICATE,
6962 .doit = nl80211_deauthenticate,
6963 .policy = nl80211_policy,
6964 .flags = GENL_ADMIN_PERM,
6965 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6966 NL80211_FLAG_NEED_RTNL,
6969 .cmd = NL80211_CMD_DISASSOCIATE,
6970 .doit = nl80211_disassociate,
6971 .policy = nl80211_policy,
6972 .flags = GENL_ADMIN_PERM,
6973 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6974 NL80211_FLAG_NEED_RTNL,
6977 .cmd = NL80211_CMD_JOIN_IBSS,
6978 .doit = nl80211_join_ibss,
6979 .policy = nl80211_policy,
6980 .flags = GENL_ADMIN_PERM,
6981 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6982 NL80211_FLAG_NEED_RTNL,
6985 .cmd = NL80211_CMD_LEAVE_IBSS,
6986 .doit = nl80211_leave_ibss,
6987 .policy = nl80211_policy,
6988 .flags = GENL_ADMIN_PERM,
6989 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6990 NL80211_FLAG_NEED_RTNL,
6992 #ifdef CONFIG_NL80211_TESTMODE
6994 .cmd = NL80211_CMD_TESTMODE,
6995 .doit = nl80211_testmode_do,
6996 .dumpit = nl80211_testmode_dump,
6997 .policy = nl80211_policy,
6998 .flags = GENL_ADMIN_PERM,
6999 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7000 NL80211_FLAG_NEED_RTNL,
7004 .cmd = NL80211_CMD_CONNECT,
7005 .doit = nl80211_connect,
7006 .policy = nl80211_policy,
7007 .flags = GENL_ADMIN_PERM,
7008 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7009 NL80211_FLAG_NEED_RTNL,
7012 .cmd = NL80211_CMD_DISCONNECT,
7013 .doit = nl80211_disconnect,
7014 .policy = nl80211_policy,
7015 .flags = GENL_ADMIN_PERM,
7016 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7017 NL80211_FLAG_NEED_RTNL,
7020 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7021 .doit = nl80211_wiphy_netns,
7022 .policy = nl80211_policy,
7023 .flags = GENL_ADMIN_PERM,
7024 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7025 NL80211_FLAG_NEED_RTNL,
7028 .cmd = NL80211_CMD_GET_SURVEY,
7029 .policy = nl80211_policy,
7030 .dumpit = nl80211_dump_survey,
7033 .cmd = NL80211_CMD_SET_PMKSA,
7034 .doit = nl80211_setdel_pmksa,
7035 .policy = nl80211_policy,
7036 .flags = GENL_ADMIN_PERM,
7037 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7038 NL80211_FLAG_NEED_RTNL,
7041 .cmd = NL80211_CMD_DEL_PMKSA,
7042 .doit = nl80211_setdel_pmksa,
7043 .policy = nl80211_policy,
7044 .flags = GENL_ADMIN_PERM,
7045 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7046 NL80211_FLAG_NEED_RTNL,
7049 .cmd = NL80211_CMD_FLUSH_PMKSA,
7050 .doit = nl80211_flush_pmksa,
7051 .policy = nl80211_policy,
7052 .flags = GENL_ADMIN_PERM,
7053 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7054 NL80211_FLAG_NEED_RTNL,
7057 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7058 .doit = nl80211_remain_on_channel,
7059 .policy = nl80211_policy,
7060 .flags = GENL_ADMIN_PERM,
7061 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7062 NL80211_FLAG_NEED_RTNL,
7065 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7066 .doit = nl80211_cancel_remain_on_channel,
7067 .policy = nl80211_policy,
7068 .flags = GENL_ADMIN_PERM,
7069 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7070 NL80211_FLAG_NEED_RTNL,
7073 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7074 .doit = nl80211_set_tx_bitrate_mask,
7075 .policy = nl80211_policy,
7076 .flags = GENL_ADMIN_PERM,
7077 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7078 NL80211_FLAG_NEED_RTNL,
7081 .cmd = NL80211_CMD_REGISTER_FRAME,
7082 .doit = nl80211_register_mgmt,
7083 .policy = nl80211_policy,
7084 .flags = GENL_ADMIN_PERM,
7085 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7086 NL80211_FLAG_NEED_RTNL,
7089 .cmd = NL80211_CMD_FRAME,
7090 .doit = nl80211_tx_mgmt,
7091 .policy = nl80211_policy,
7092 .flags = GENL_ADMIN_PERM,
7093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7094 NL80211_FLAG_NEED_RTNL,
7097 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7098 .doit = nl80211_tx_mgmt_cancel_wait,
7099 .policy = nl80211_policy,
7100 .flags = GENL_ADMIN_PERM,
7101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7102 NL80211_FLAG_NEED_RTNL,
7105 .cmd = NL80211_CMD_SET_POWER_SAVE,
7106 .doit = nl80211_set_power_save,
7107 .policy = nl80211_policy,
7108 .flags = GENL_ADMIN_PERM,
7109 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7110 NL80211_FLAG_NEED_RTNL,
7113 .cmd = NL80211_CMD_GET_POWER_SAVE,
7114 .doit = nl80211_get_power_save,
7115 .policy = nl80211_policy,
7116 /* can be retrieved by unprivileged users */
7117 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7118 NL80211_FLAG_NEED_RTNL,
7121 .cmd = NL80211_CMD_SET_CQM,
7122 .doit = nl80211_set_cqm,
7123 .policy = nl80211_policy,
7124 .flags = GENL_ADMIN_PERM,
7125 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7126 NL80211_FLAG_NEED_RTNL,
7129 .cmd = NL80211_CMD_SET_CHANNEL,
7130 .doit = nl80211_set_channel,
7131 .policy = nl80211_policy,
7132 .flags = GENL_ADMIN_PERM,
7133 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7134 NL80211_FLAG_NEED_RTNL,
7137 .cmd = NL80211_CMD_SET_WDS_PEER,
7138 .doit = nl80211_set_wds_peer,
7139 .policy = nl80211_policy,
7140 .flags = GENL_ADMIN_PERM,
7141 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7142 NL80211_FLAG_NEED_RTNL,
7145 .cmd = NL80211_CMD_JOIN_MESH,
7146 .doit = nl80211_join_mesh,
7147 .policy = nl80211_policy,
7148 .flags = GENL_ADMIN_PERM,
7149 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7150 NL80211_FLAG_NEED_RTNL,
7153 .cmd = NL80211_CMD_LEAVE_MESH,
7154 .doit = nl80211_leave_mesh,
7155 .policy = nl80211_policy,
7156 .flags = GENL_ADMIN_PERM,
7157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7158 NL80211_FLAG_NEED_RTNL,
7162 .cmd = NL80211_CMD_GET_WOWLAN,
7163 .doit = nl80211_get_wowlan,
7164 .policy = nl80211_policy,
7165 /* can be retrieved by unprivileged users */
7166 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7167 NL80211_FLAG_NEED_RTNL,
7170 .cmd = NL80211_CMD_SET_WOWLAN,
7171 .doit = nl80211_set_wowlan,
7172 .policy = nl80211_policy,
7173 .flags = GENL_ADMIN_PERM,
7174 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7175 NL80211_FLAG_NEED_RTNL,
7179 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7180 .doit = nl80211_set_rekey_data,
7181 .policy = nl80211_policy,
7182 .flags = GENL_ADMIN_PERM,
7183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7184 NL80211_FLAG_NEED_RTNL,
7187 .cmd = NL80211_CMD_TDLS_MGMT,
7188 .doit = nl80211_tdls_mgmt,
7189 .policy = nl80211_policy,
7190 .flags = GENL_ADMIN_PERM,
7191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7192 NL80211_FLAG_NEED_RTNL,
7195 .cmd = NL80211_CMD_TDLS_OPER,
7196 .doit = nl80211_tdls_oper,
7197 .policy = nl80211_policy,
7198 .flags = GENL_ADMIN_PERM,
7199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7200 NL80211_FLAG_NEED_RTNL,
7203 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7204 .doit = nl80211_register_unexpected_frame,
7205 .policy = nl80211_policy,
7206 .flags = GENL_ADMIN_PERM,
7207 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7208 NL80211_FLAG_NEED_RTNL,
7211 .cmd = NL80211_CMD_PROBE_CLIENT,
7212 .doit = nl80211_probe_client,
7213 .policy = nl80211_policy,
7214 .flags = GENL_ADMIN_PERM,
7215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7216 NL80211_FLAG_NEED_RTNL,
7219 .cmd = NL80211_CMD_REGISTER_BEACONS,
7220 .doit = nl80211_register_beacons,
7221 .policy = nl80211_policy,
7222 .flags = GENL_ADMIN_PERM,
7223 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7224 NL80211_FLAG_NEED_RTNL,
7227 .cmd = NL80211_CMD_SET_NOACK_MAP,
7228 .doit = nl80211_set_noack_map,
7229 .policy = nl80211_policy,
7230 .flags = GENL_ADMIN_PERM,
7231 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7232 NL80211_FLAG_NEED_RTNL,
7237 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7241 /* multicast groups */
7242 static struct genl_multicast_group nl80211_config_mcgrp = {
7245 static struct genl_multicast_group nl80211_scan_mcgrp = {
7248 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7249 .name = "regulatory",
7252 /* notification functions */
7254 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7256 struct sk_buff *msg;
7258 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7262 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7267 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7268 nl80211_config_mcgrp.id, GFP_KERNEL);
7271 static int nl80211_add_scan_req(struct sk_buff *msg,
7272 struct cfg80211_registered_device *rdev)
7274 struct cfg80211_scan_request *req = rdev->scan_req;
7275 struct nlattr *nest;
7278 ASSERT_RDEV_LOCK(rdev);
7283 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7285 goto nla_put_failure;
7286 for (i = 0; i < req->n_ssids; i++) {
7287 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7288 goto nla_put_failure;
7290 nla_nest_end(msg, nest);
7292 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7294 goto nla_put_failure;
7295 for (i = 0; i < req->n_channels; i++) {
7296 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7297 goto nla_put_failure;
7299 nla_nest_end(msg, nest);
7302 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7303 goto nla_put_failure;
7310 static int nl80211_send_scan_msg(struct sk_buff *msg,
7311 struct cfg80211_registered_device *rdev,
7312 struct net_device *netdev,
7313 u32 pid, u32 seq, int flags,
7318 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7322 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7323 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7324 goto nla_put_failure;
7326 /* ignore errors and send incomplete event anyway */
7327 nl80211_add_scan_req(msg, rdev);
7329 return genlmsg_end(msg, hdr);
7332 genlmsg_cancel(msg, hdr);
7337 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7338 struct cfg80211_registered_device *rdev,
7339 struct net_device *netdev,
7340 u32 pid, u32 seq, int flags, u32 cmd)
7344 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7349 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7350 goto nla_put_failure;
7352 return genlmsg_end(msg, hdr);
7355 genlmsg_cancel(msg, hdr);
7359 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7360 struct net_device *netdev)
7362 struct sk_buff *msg;
7364 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7368 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7369 NL80211_CMD_TRIGGER_SCAN) < 0) {
7374 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7375 nl80211_scan_mcgrp.id, GFP_KERNEL);
7378 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7379 struct net_device *netdev)
7381 struct sk_buff *msg;
7383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7387 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7388 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7393 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7394 nl80211_scan_mcgrp.id, GFP_KERNEL);
7397 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7398 struct net_device *netdev)
7400 struct sk_buff *msg;
7402 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7406 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7407 NL80211_CMD_SCAN_ABORTED) < 0) {
7412 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7413 nl80211_scan_mcgrp.id, GFP_KERNEL);
7416 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7417 struct net_device *netdev)
7419 struct sk_buff *msg;
7421 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7425 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7426 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7431 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7432 nl80211_scan_mcgrp.id, GFP_KERNEL);
7435 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7436 struct net_device *netdev, u32 cmd)
7438 struct sk_buff *msg;
7440 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7444 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7449 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7450 nl80211_scan_mcgrp.id, GFP_KERNEL);
7454 * This can happen on global regulatory changes or device specific settings
7455 * based on custom world regulatory domains.
7457 void nl80211_send_reg_change_event(struct regulatory_request *request)
7459 struct sk_buff *msg;
7462 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7466 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7472 /* Userspace can always count this one always being set */
7473 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7474 goto nla_put_failure;
7476 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7477 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7478 NL80211_REGDOM_TYPE_WORLD))
7479 goto nla_put_failure;
7480 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7481 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7482 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7483 goto nla_put_failure;
7484 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7485 request->intersect) {
7486 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7487 NL80211_REGDOM_TYPE_INTERSECTION))
7488 goto nla_put_failure;
7490 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7491 NL80211_REGDOM_TYPE_COUNTRY) ||
7492 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7494 goto nla_put_failure;
7497 if (wiphy_idx_valid(request->wiphy_idx) &&
7498 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7499 goto nla_put_failure;
7501 genlmsg_end(msg, hdr);
7504 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7511 genlmsg_cancel(msg, hdr);
7515 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7516 struct net_device *netdev,
7517 const u8 *buf, size_t len,
7518 enum nl80211_commands cmd, gfp_t gfp)
7520 struct sk_buff *msg;
7523 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7527 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7533 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7534 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7535 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7536 goto nla_put_failure;
7538 genlmsg_end(msg, hdr);
7540 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7541 nl80211_mlme_mcgrp.id, gfp);
7545 genlmsg_cancel(msg, hdr);
7549 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7550 struct net_device *netdev, const u8 *buf,
7551 size_t len, gfp_t gfp)
7553 nl80211_send_mlme_event(rdev, netdev, buf, len,
7554 NL80211_CMD_AUTHENTICATE, gfp);
7557 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7558 struct net_device *netdev, const u8 *buf,
7559 size_t len, gfp_t gfp)
7561 nl80211_send_mlme_event(rdev, netdev, buf, len,
7562 NL80211_CMD_ASSOCIATE, gfp);
7565 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7566 struct net_device *netdev, const u8 *buf,
7567 size_t len, gfp_t gfp)
7569 nl80211_send_mlme_event(rdev, netdev, buf, len,
7570 NL80211_CMD_DEAUTHENTICATE, gfp);
7573 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7574 struct net_device *netdev, const u8 *buf,
7575 size_t len, gfp_t gfp)
7577 nl80211_send_mlme_event(rdev, netdev, buf, len,
7578 NL80211_CMD_DISASSOCIATE, gfp);
7581 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7582 struct net_device *netdev, const u8 *buf,
7583 size_t len, gfp_t gfp)
7585 nl80211_send_mlme_event(rdev, netdev, buf, len,
7586 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7589 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7590 struct net_device *netdev, const u8 *buf,
7591 size_t len, gfp_t gfp)
7593 nl80211_send_mlme_event(rdev, netdev, buf, len,
7594 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7597 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7598 struct net_device *netdev, int cmd,
7599 const u8 *addr, gfp_t gfp)
7601 struct sk_buff *msg;
7604 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7608 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7614 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7615 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7616 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7617 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7618 goto nla_put_failure;
7620 genlmsg_end(msg, hdr);
7622 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7623 nl80211_mlme_mcgrp.id, gfp);
7627 genlmsg_cancel(msg, hdr);
7631 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7632 struct net_device *netdev, const u8 *addr,
7635 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7639 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7640 struct net_device *netdev, const u8 *addr,
7643 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7647 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7648 struct net_device *netdev, const u8 *bssid,
7649 const u8 *req_ie, size_t req_ie_len,
7650 const u8 *resp_ie, size_t resp_ie_len,
7651 u16 status, gfp_t gfp)
7653 struct sk_buff *msg;
7656 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7660 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7666 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7667 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7668 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7669 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7671 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7673 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7674 goto nla_put_failure;
7676 genlmsg_end(msg, hdr);
7678 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7679 nl80211_mlme_mcgrp.id, gfp);
7683 genlmsg_cancel(msg, hdr);
7688 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7689 struct net_device *netdev, const u8 *bssid,
7690 const u8 *req_ie, size_t req_ie_len,
7691 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7693 struct sk_buff *msg;
7696 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7700 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7706 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7707 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7708 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7710 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7712 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7713 goto nla_put_failure;
7715 genlmsg_end(msg, hdr);
7717 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7718 nl80211_mlme_mcgrp.id, gfp);
7722 genlmsg_cancel(msg, hdr);
7727 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7728 struct net_device *netdev, u16 reason,
7729 const u8 *ie, size_t ie_len, bool from_ap)
7731 struct sk_buff *msg;
7734 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7738 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7744 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7745 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7746 (from_ap && reason &&
7747 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7749 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7750 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7751 goto nla_put_failure;
7753 genlmsg_end(msg, hdr);
7755 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7756 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7760 genlmsg_cancel(msg, hdr);
7765 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7766 struct net_device *netdev, const u8 *bssid,
7769 struct sk_buff *msg;
7772 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7776 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7782 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7783 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7784 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7785 goto nla_put_failure;
7787 genlmsg_end(msg, hdr);
7789 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7790 nl80211_mlme_mcgrp.id, gfp);
7794 genlmsg_cancel(msg, hdr);
7798 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7799 struct net_device *netdev,
7800 const u8 *macaddr, const u8* ie, u8 ie_len,
7803 struct sk_buff *msg;
7806 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7810 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7816 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7817 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7818 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7820 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7821 goto nla_put_failure;
7823 genlmsg_end(msg, hdr);
7825 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7826 nl80211_mlme_mcgrp.id, gfp);
7830 genlmsg_cancel(msg, hdr);
7834 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7835 struct net_device *netdev, const u8 *addr,
7836 enum nl80211_key_type key_type, int key_id,
7837 const u8 *tsc, gfp_t gfp)
7839 struct sk_buff *msg;
7842 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7846 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7852 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7853 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7854 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7855 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7857 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7858 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7859 goto nla_put_failure;
7861 genlmsg_end(msg, hdr);
7863 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7864 nl80211_mlme_mcgrp.id, gfp);
7868 genlmsg_cancel(msg, hdr);
7872 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7873 struct ieee80211_channel *channel_before,
7874 struct ieee80211_channel *channel_after)
7876 struct sk_buff *msg;
7878 struct nlattr *nl_freq;
7880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7884 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7891 * Since we are applying the beacon hint to a wiphy we know its
7892 * wiphy_idx is valid
7894 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7895 goto nla_put_failure;
7898 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7900 goto nla_put_failure;
7901 if (nl80211_msg_put_channel(msg, channel_before))
7902 goto nla_put_failure;
7903 nla_nest_end(msg, nl_freq);
7906 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7908 goto nla_put_failure;
7909 if (nl80211_msg_put_channel(msg, channel_after))
7910 goto nla_put_failure;
7911 nla_nest_end(msg, nl_freq);
7913 genlmsg_end(msg, hdr);
7916 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7923 genlmsg_cancel(msg, hdr);
7927 static void nl80211_send_remain_on_chan_event(
7928 int cmd, struct cfg80211_registered_device *rdev,
7929 struct net_device *netdev, u64 cookie,
7930 struct ieee80211_channel *chan,
7931 enum nl80211_channel_type channel_type,
7932 unsigned int duration, gfp_t gfp)
7934 struct sk_buff *msg;
7937 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7941 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7948 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7949 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7950 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7951 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7952 goto nla_put_failure;
7954 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7955 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7956 goto nla_put_failure;
7958 genlmsg_end(msg, hdr);
7960 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7961 nl80211_mlme_mcgrp.id, gfp);
7965 genlmsg_cancel(msg, hdr);
7969 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7970 struct net_device *netdev, u64 cookie,
7971 struct ieee80211_channel *chan,
7972 enum nl80211_channel_type channel_type,
7973 unsigned int duration, gfp_t gfp)
7975 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7976 rdev, netdev, cookie, chan,
7977 channel_type, duration, gfp);
7980 void nl80211_send_remain_on_channel_cancel(
7981 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7982 u64 cookie, struct ieee80211_channel *chan,
7983 enum nl80211_channel_type channel_type, gfp_t gfp)
7985 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7986 rdev, netdev, cookie, chan,
7987 channel_type, 0, gfp);
7990 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7991 struct net_device *dev, const u8 *mac_addr,
7992 struct station_info *sinfo, gfp_t gfp)
7994 struct sk_buff *msg;
7996 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8000 if (nl80211_send_station(msg, 0, 0, 0,
8001 rdev, dev, mac_addr, sinfo) < 0) {
8006 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8007 nl80211_mlme_mcgrp.id, gfp);
8010 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8011 struct net_device *dev, const u8 *mac_addr,
8014 struct sk_buff *msg;
8017 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8021 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8027 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8028 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8029 goto nla_put_failure;
8031 genlmsg_end(msg, hdr);
8033 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8034 nl80211_mlme_mcgrp.id, gfp);
8038 genlmsg_cancel(msg, hdr);
8042 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8043 const u8 *addr, gfp_t gfp)
8045 struct wireless_dev *wdev = dev->ieee80211_ptr;
8046 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8047 struct sk_buff *msg;
8050 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8055 msg = nlmsg_new(100, gfp);
8059 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8065 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8066 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8067 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8068 goto nla_put_failure;
8070 err = genlmsg_end(msg, hdr);
8076 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8080 genlmsg_cancel(msg, hdr);
8085 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8087 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8091 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8092 const u8 *addr, gfp_t gfp)
8094 return __nl80211_unexpected_frame(dev,
8095 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8099 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8100 struct net_device *netdev, u32 nlpid,
8101 int freq, int sig_dbm,
8102 const u8 *buf, size_t len, gfp_t gfp)
8104 struct sk_buff *msg;
8107 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8111 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8117 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8118 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8119 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8121 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8122 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8123 goto nla_put_failure;
8125 genlmsg_end(msg, hdr);
8127 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8130 genlmsg_cancel(msg, hdr);
8135 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8136 struct net_device *netdev, u64 cookie,
8137 const u8 *buf, size_t len, bool ack,
8140 struct sk_buff *msg;
8143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8147 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8153 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8154 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8155 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8156 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8157 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8158 goto nla_put_failure;
8160 genlmsg_end(msg, hdr);
8162 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8166 genlmsg_cancel(msg, hdr);
8171 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8172 struct net_device *netdev,
8173 enum nl80211_cqm_rssi_threshold_event rssi_event,
8176 struct sk_buff *msg;
8177 struct nlattr *pinfoattr;
8180 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8184 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8190 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8191 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8192 goto nla_put_failure;
8194 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8196 goto nla_put_failure;
8198 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8200 goto nla_put_failure;
8202 nla_nest_end(msg, pinfoattr);
8204 genlmsg_end(msg, hdr);
8206 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8207 nl80211_mlme_mcgrp.id, gfp);
8211 genlmsg_cancel(msg, hdr);
8215 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8216 struct net_device *netdev, const u8 *bssid,
8217 const u8 *replay_ctr, gfp_t gfp)
8219 struct sk_buff *msg;
8220 struct nlattr *rekey_attr;
8223 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8227 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8233 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8234 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8235 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8236 goto nla_put_failure;
8238 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8240 goto nla_put_failure;
8242 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8243 NL80211_REPLAY_CTR_LEN, replay_ctr))
8244 goto nla_put_failure;
8246 nla_nest_end(msg, rekey_attr);
8248 genlmsg_end(msg, hdr);
8250 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8251 nl80211_mlme_mcgrp.id, gfp);
8255 genlmsg_cancel(msg, hdr);
8259 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8260 struct net_device *netdev, int index,
8261 const u8 *bssid, bool preauth, gfp_t gfp)
8263 struct sk_buff *msg;
8264 struct nlattr *attr;
8267 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8271 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8277 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8278 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8279 goto nla_put_failure;
8281 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8283 goto nla_put_failure;
8285 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8286 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8288 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8289 goto nla_put_failure;
8291 nla_nest_end(msg, attr);
8293 genlmsg_end(msg, hdr);
8295 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8296 nl80211_mlme_mcgrp.id, gfp);
8300 genlmsg_cancel(msg, hdr);
8304 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8305 struct net_device *netdev, int freq,
8306 enum nl80211_channel_type type, gfp_t gfp)
8308 struct sk_buff *msg;
8311 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8315 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8321 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8322 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8323 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8324 goto nla_put_failure;
8326 genlmsg_end(msg, hdr);
8328 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8329 nl80211_mlme_mcgrp.id, gfp);
8333 genlmsg_cancel(msg, hdr);
8338 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8339 struct net_device *netdev, const u8 *peer,
8340 u32 num_packets, gfp_t gfp)
8342 struct sk_buff *msg;
8343 struct nlattr *pinfoattr;
8346 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8350 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8356 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8357 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8358 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8359 goto nla_put_failure;
8361 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8363 goto nla_put_failure;
8365 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8366 goto nla_put_failure;
8368 nla_nest_end(msg, pinfoattr);
8370 genlmsg_end(msg, hdr);
8372 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8373 nl80211_mlme_mcgrp.id, gfp);
8377 genlmsg_cancel(msg, hdr);
8381 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8382 u64 cookie, bool acked, gfp_t gfp)
8384 struct wireless_dev *wdev = dev->ieee80211_ptr;
8385 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8386 struct sk_buff *msg;
8390 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8394 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8401 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8402 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8403 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8404 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8405 goto nla_put_failure;
8407 err = genlmsg_end(msg, hdr);
8413 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8414 nl80211_mlme_mcgrp.id, gfp);
8418 genlmsg_cancel(msg, hdr);
8421 EXPORT_SYMBOL(cfg80211_probe_status);
8423 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8424 const u8 *frame, size_t len,
8425 int freq, int sig_dbm, gfp_t gfp)
8427 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8428 struct sk_buff *msg;
8430 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8435 msg = nlmsg_new(len + 100, gfp);
8439 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8445 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8447 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8449 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8450 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8451 goto nla_put_failure;
8453 genlmsg_end(msg, hdr);
8455 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8459 genlmsg_cancel(msg, hdr);
8462 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8464 static int nl80211_netlink_notify(struct notifier_block * nb,
8465 unsigned long state,
8468 struct netlink_notify *notify = _notify;
8469 struct cfg80211_registered_device *rdev;
8470 struct wireless_dev *wdev;
8472 if (state != NETLINK_URELEASE)
8477 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8478 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8479 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8480 if (rdev->ap_beacons_nlpid == notify->pid)
8481 rdev->ap_beacons_nlpid = 0;
8489 static struct notifier_block nl80211_netlink_notifier = {
8490 .notifier_call = nl80211_netlink_notify,
8493 /* initialisation/exit functions */
8495 int nl80211_init(void)
8499 err = genl_register_family_with_ops(&nl80211_fam,
8500 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8504 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8508 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8512 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8516 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8520 #ifdef CONFIG_NL80211_TESTMODE
8521 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8526 err = netlink_register_notifier(&nl80211_netlink_notifier);
8532 genl_unregister_family(&nl80211_fam);
8536 void nl80211_exit(void)
8538 netlink_unregister_notifier(&nl80211_netlink_notifier);
8539 genl_unregister_family(&nl80211_fam);