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;
924 /* add frequencies */
925 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
927 goto nla_put_failure;
929 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
930 nl_freq = nla_nest_start(msg, i);
932 goto nla_put_failure;
934 chan = &dev->wiphy.bands[band]->channels[i];
936 if (nl80211_msg_put_channel(msg, chan))
937 goto nla_put_failure;
939 nla_nest_end(msg, nl_freq);
942 nla_nest_end(msg, nl_freqs);
945 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
947 goto nla_put_failure;
949 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
950 nl_rate = nla_nest_start(msg, i);
952 goto nla_put_failure;
954 rate = &dev->wiphy.bands[band]->bitrates[i];
955 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
957 goto nla_put_failure;
958 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
960 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
961 goto nla_put_failure;
963 nla_nest_end(msg, nl_rate);
966 nla_nest_end(msg, nl_rates);
968 nla_nest_end(msg, nl_band);
970 nla_nest_end(msg, nl_bands);
972 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
974 goto nla_put_failure;
979 if (dev->ops->op) { \
981 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
982 goto nla_put_failure; \
986 CMD(add_virtual_intf, NEW_INTERFACE);
987 CMD(change_virtual_intf, SET_INTERFACE);
988 CMD(add_key, NEW_KEY);
989 CMD(start_ap, START_AP);
990 CMD(add_station, NEW_STATION);
991 CMD(add_mpath, NEW_MPATH);
992 CMD(update_mesh_config, SET_MESH_CONFIG);
993 CMD(change_bss, SET_BSS);
994 CMD(auth, AUTHENTICATE);
995 CMD(assoc, ASSOCIATE);
996 CMD(deauth, DEAUTHENTICATE);
997 CMD(disassoc, DISASSOCIATE);
998 CMD(join_ibss, JOIN_IBSS);
999 CMD(join_mesh, JOIN_MESH);
1000 CMD(set_pmksa, SET_PMKSA);
1001 CMD(del_pmksa, DEL_PMKSA);
1002 CMD(flush_pmksa, FLUSH_PMKSA);
1003 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1004 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1005 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1006 CMD(mgmt_tx, FRAME);
1007 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1008 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1010 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1011 goto nla_put_failure;
1013 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1014 dev->ops->join_mesh) {
1016 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1017 goto nla_put_failure;
1019 CMD(set_wds_peer, SET_WDS_PEER);
1020 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1021 CMD(tdls_mgmt, TDLS_MGMT);
1022 CMD(tdls_oper, TDLS_OPER);
1024 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1025 CMD(sched_scan_start, START_SCHED_SCAN);
1026 CMD(probe_client, PROBE_CLIENT);
1027 CMD(set_noack_map, SET_NOACK_MAP);
1028 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1030 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1031 goto nla_put_failure;
1034 #ifdef CONFIG_NL80211_TESTMODE
1035 CMD(testmode_cmd, TESTMODE);
1040 if (dev->ops->connect || dev->ops->auth) {
1042 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1043 goto nla_put_failure;
1046 if (dev->ops->disconnect || dev->ops->deauth) {
1048 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1049 goto nla_put_failure;
1052 nla_nest_end(msg, nl_cmds);
1054 if (dev->ops->remain_on_channel &&
1055 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1056 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1057 dev->wiphy.max_remain_on_channel_duration))
1058 goto nla_put_failure;
1060 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1061 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1062 goto nla_put_failure;
1066 struct nlattr *nl_ftypes, *nl_ifs;
1067 enum nl80211_iftype ift;
1069 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1071 goto nla_put_failure;
1073 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1074 nl_ftypes = nla_nest_start(msg, ift);
1076 goto nla_put_failure;
1078 stypes = mgmt_stypes[ift].tx;
1081 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1082 (i << 4) | IEEE80211_FTYPE_MGMT))
1083 goto nla_put_failure;
1087 nla_nest_end(msg, nl_ftypes);
1090 nla_nest_end(msg, nl_ifs);
1092 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1094 goto nla_put_failure;
1096 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1097 nl_ftypes = nla_nest_start(msg, ift);
1099 goto nla_put_failure;
1101 stypes = mgmt_stypes[ift].rx;
1104 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1105 (i << 4) | IEEE80211_FTYPE_MGMT))
1106 goto nla_put_failure;
1110 nla_nest_end(msg, nl_ftypes);
1112 nla_nest_end(msg, nl_ifs);
1116 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1117 struct nlattr *nl_wowlan;
1119 nl_wowlan = nla_nest_start(msg,
1120 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1122 goto nla_put_failure;
1124 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1125 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1126 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1127 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1128 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1129 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1130 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1131 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1132 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1133 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1134 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1135 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1136 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1137 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1138 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1139 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1140 goto nla_put_failure;
1141 if (dev->wiphy.wowlan.n_patterns) {
1142 struct nl80211_wowlan_pattern_support pat = {
1143 .max_patterns = dev->wiphy.wowlan.n_patterns,
1145 dev->wiphy.wowlan.pattern_min_len,
1147 dev->wiphy.wowlan.pattern_max_len,
1149 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1151 goto nla_put_failure;
1154 nla_nest_end(msg, nl_wowlan);
1158 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1159 dev->wiphy.software_iftypes))
1160 goto nla_put_failure;
1162 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1163 goto nla_put_failure;
1165 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1166 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1167 dev->wiphy.ap_sme_capa))
1168 goto nla_put_failure;
1170 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1171 dev->wiphy.features))
1172 goto nla_put_failure;
1174 if (dev->wiphy.ht_capa_mod_mask &&
1175 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1176 sizeof(*dev->wiphy.ht_capa_mod_mask),
1177 dev->wiphy.ht_capa_mod_mask))
1178 goto nla_put_failure;
1180 return genlmsg_end(msg, hdr);
1183 genlmsg_cancel(msg, hdr);
1187 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1190 int start = cb->args[0];
1191 struct cfg80211_registered_device *dev;
1193 mutex_lock(&cfg80211_mutex);
1194 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1195 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1199 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1200 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1206 mutex_unlock(&cfg80211_mutex);
1213 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1215 struct sk_buff *msg;
1216 struct cfg80211_registered_device *dev = info->user_ptr[0];
1218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1222 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1227 return genlmsg_reply(msg, info);
1230 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1231 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1232 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1233 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1234 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1235 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1238 static int parse_txq_params(struct nlattr *tb[],
1239 struct ieee80211_txq_params *txq_params)
1241 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1242 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1243 !tb[NL80211_TXQ_ATTR_AIFS])
1246 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1247 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1248 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1249 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1250 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1252 if (txq_params->ac >= NL80211_NUM_ACS)
1258 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1261 * You can only set the channel explicitly for WDS interfaces,
1262 * all others have their channel managed via their respective
1263 * "establish a connection" command (connect, join, ...)
1265 * For AP/GO and mesh mode, the channel can be set with the
1266 * channel userspace API, but is only stored and passed to the
1267 * low-level driver when the AP starts or the mesh is joined.
1268 * This is for backward compatibility, userspace can also give
1269 * the channel in the start-ap or join-mesh commands instead.
1271 * Monitors are special as they are normally slaved to
1272 * whatever else is going on, so they have their own special
1273 * operation to set the monitor channel if possible.
1276 wdev->iftype == NL80211_IFTYPE_AP ||
1277 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1278 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1279 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1282 static bool nl80211_valid_channel_type(struct genl_info *info,
1283 enum nl80211_channel_type *channel_type)
1285 enum nl80211_channel_type tmp;
1287 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1290 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1291 if (tmp != NL80211_CHAN_NO_HT &&
1292 tmp != NL80211_CHAN_HT20 &&
1293 tmp != NL80211_CHAN_HT40PLUS &&
1294 tmp != NL80211_CHAN_HT40MINUS)
1298 *channel_type = tmp;
1303 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1304 struct wireless_dev *wdev,
1305 struct genl_info *info)
1307 struct ieee80211_channel *channel;
1308 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1311 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1314 iftype = wdev->iftype;
1316 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1319 if (!nl80211_can_set_dev_channel(wdev))
1322 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1323 !nl80211_valid_channel_type(info, &channel_type))
1326 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1328 mutex_lock(&rdev->devlist_mtx);
1330 case NL80211_IFTYPE_AP:
1331 case NL80211_IFTYPE_P2P_GO:
1332 if (wdev->beacon_interval) {
1336 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1337 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1343 wdev->preset_chan = channel;
1344 wdev->preset_chantype = channel_type;
1347 case NL80211_IFTYPE_MESH_POINT:
1348 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1350 case NL80211_IFTYPE_MONITOR:
1351 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1356 mutex_unlock(&rdev->devlist_mtx);
1361 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1364 struct net_device *netdev = info->user_ptr[1];
1366 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1369 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1371 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1372 struct net_device *dev = info->user_ptr[1];
1373 struct wireless_dev *wdev = dev->ieee80211_ptr;
1376 if (!info->attrs[NL80211_ATTR_MAC])
1379 if (netif_running(dev))
1382 if (!rdev->ops->set_wds_peer)
1385 if (wdev->iftype != NL80211_IFTYPE_WDS)
1388 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1389 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1393 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1395 struct cfg80211_registered_device *rdev;
1396 struct net_device *netdev = NULL;
1397 struct wireless_dev *wdev;
1398 int result = 0, rem_txq_params = 0;
1399 struct nlattr *nl_txq_params;
1401 u8 retry_short = 0, retry_long = 0;
1402 u32 frag_threshold = 0, rts_threshold = 0;
1403 u8 coverage_class = 0;
1406 * Try to find the wiphy and netdev. Normally this
1407 * function shouldn't need the netdev, but this is
1408 * done for backward compatibility -- previously
1409 * setting the channel was done per wiphy, but now
1410 * it is per netdev. Previous userland like hostapd
1411 * also passed a netdev to set_wiphy, so that it is
1412 * possible to let that go to the right netdev!
1414 mutex_lock(&cfg80211_mutex);
1416 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1417 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1419 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1420 if (netdev && netdev->ieee80211_ptr) {
1421 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1422 mutex_lock(&rdev->mtx);
1428 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1431 mutex_unlock(&cfg80211_mutex);
1432 return PTR_ERR(rdev);
1438 mutex_lock(&rdev->mtx);
1439 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1440 wdev = netdev->ieee80211_ptr;
1445 * end workaround code, by now the rdev is available
1446 * and locked, and wdev may or may not be NULL.
1449 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1450 result = cfg80211_dev_rename(
1451 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1453 mutex_unlock(&cfg80211_mutex);
1458 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1459 struct ieee80211_txq_params txq_params;
1460 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1462 if (!rdev->ops->set_txq_params) {
1463 result = -EOPNOTSUPP;
1472 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1473 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1478 if (!netif_running(netdev)) {
1483 nla_for_each_nested(nl_txq_params,
1484 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1486 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1487 nla_data(nl_txq_params),
1488 nla_len(nl_txq_params),
1490 result = parse_txq_params(tb, &txq_params);
1494 result = rdev->ops->set_txq_params(&rdev->wiphy,
1502 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1503 result = __nl80211_set_channel(rdev, wdev, info);
1508 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1509 enum nl80211_tx_power_setting type;
1512 if (!rdev->ops->set_tx_power) {
1513 result = -EOPNOTSUPP;
1517 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1518 type = nla_get_u32(info->attrs[idx]);
1520 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1521 (type != NL80211_TX_POWER_AUTOMATIC)) {
1526 if (type != NL80211_TX_POWER_AUTOMATIC) {
1527 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1528 mbm = nla_get_u32(info->attrs[idx]);
1531 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1536 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1537 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1539 if ((!rdev->wiphy.available_antennas_tx &&
1540 !rdev->wiphy.available_antennas_rx) ||
1541 !rdev->ops->set_antenna) {
1542 result = -EOPNOTSUPP;
1546 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1547 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1549 /* reject antenna configurations which don't match the
1550 * available antenna masks, except for the "all" mask */
1551 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1552 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1557 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1558 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1560 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1567 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1568 retry_short = nla_get_u8(
1569 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1570 if (retry_short == 0) {
1574 changed |= WIPHY_PARAM_RETRY_SHORT;
1577 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1578 retry_long = nla_get_u8(
1579 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1580 if (retry_long == 0) {
1584 changed |= WIPHY_PARAM_RETRY_LONG;
1587 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1588 frag_threshold = nla_get_u32(
1589 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1590 if (frag_threshold < 256) {
1594 if (frag_threshold != (u32) -1) {
1596 * Fragments (apart from the last one) are required to
1597 * have even length. Make the fragmentation code
1598 * simpler by stripping LSB should someone try to use
1599 * odd threshold value.
1601 frag_threshold &= ~0x1;
1603 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1606 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1607 rts_threshold = nla_get_u32(
1608 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1609 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1612 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1613 coverage_class = nla_get_u8(
1614 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1615 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1619 u8 old_retry_short, old_retry_long;
1620 u32 old_frag_threshold, old_rts_threshold;
1621 u8 old_coverage_class;
1623 if (!rdev->ops->set_wiphy_params) {
1624 result = -EOPNOTSUPP;
1628 old_retry_short = rdev->wiphy.retry_short;
1629 old_retry_long = rdev->wiphy.retry_long;
1630 old_frag_threshold = rdev->wiphy.frag_threshold;
1631 old_rts_threshold = rdev->wiphy.rts_threshold;
1632 old_coverage_class = rdev->wiphy.coverage_class;
1634 if (changed & WIPHY_PARAM_RETRY_SHORT)
1635 rdev->wiphy.retry_short = retry_short;
1636 if (changed & WIPHY_PARAM_RETRY_LONG)
1637 rdev->wiphy.retry_long = retry_long;
1638 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1639 rdev->wiphy.frag_threshold = frag_threshold;
1640 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1641 rdev->wiphy.rts_threshold = rts_threshold;
1642 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1643 rdev->wiphy.coverage_class = coverage_class;
1645 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1647 rdev->wiphy.retry_short = old_retry_short;
1648 rdev->wiphy.retry_long = old_retry_long;
1649 rdev->wiphy.frag_threshold = old_frag_threshold;
1650 rdev->wiphy.rts_threshold = old_rts_threshold;
1651 rdev->wiphy.coverage_class = old_coverage_class;
1656 mutex_unlock(&rdev->mtx);
1663 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1664 struct cfg80211_registered_device *rdev,
1665 struct net_device *dev)
1669 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1673 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1674 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1675 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1676 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1677 dev->ieee80211_ptr->iftype) ||
1678 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1679 rdev->devlist_generation ^
1680 (cfg80211_rdev_list_generation << 2)))
1681 goto nla_put_failure;
1683 if (rdev->ops->get_channel) {
1684 struct ieee80211_channel *chan;
1685 enum nl80211_channel_type channel_type;
1687 chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type);
1689 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1690 chan->center_freq) ||
1691 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1693 goto nla_put_failure;
1696 return genlmsg_end(msg, hdr);
1699 genlmsg_cancel(msg, hdr);
1703 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1707 int wp_start = cb->args[0];
1708 int if_start = cb->args[1];
1709 struct cfg80211_registered_device *rdev;
1710 struct wireless_dev *wdev;
1712 mutex_lock(&cfg80211_mutex);
1713 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1714 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1716 if (wp_idx < wp_start) {
1722 mutex_lock(&rdev->devlist_mtx);
1723 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1724 if (if_idx < if_start) {
1728 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1729 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1730 rdev, wdev->netdev) < 0) {
1731 mutex_unlock(&rdev->devlist_mtx);
1736 mutex_unlock(&rdev->devlist_mtx);
1741 mutex_unlock(&cfg80211_mutex);
1743 cb->args[0] = wp_idx;
1744 cb->args[1] = if_idx;
1749 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1751 struct sk_buff *msg;
1752 struct cfg80211_registered_device *dev = info->user_ptr[0];
1753 struct net_device *netdev = info->user_ptr[1];
1755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1759 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1765 return genlmsg_reply(msg, info);
1768 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1769 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1770 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1771 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1772 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1773 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1776 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1778 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1786 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1787 nla, mntr_flags_policy))
1790 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1792 *mntrflags |= (1<<flag);
1797 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1798 struct net_device *netdev, u8 use_4addr,
1799 enum nl80211_iftype iftype)
1802 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1808 case NL80211_IFTYPE_AP_VLAN:
1809 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1812 case NL80211_IFTYPE_STATION:
1813 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1823 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1825 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1826 struct vif_params params;
1828 enum nl80211_iftype otype, ntype;
1829 struct net_device *dev = info->user_ptr[1];
1830 u32 _flags, *flags = NULL;
1831 bool change = false;
1833 memset(¶ms, 0, sizeof(params));
1835 otype = ntype = dev->ieee80211_ptr->iftype;
1837 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1838 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1841 if (ntype > NL80211_IFTYPE_MAX)
1845 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1846 struct wireless_dev *wdev = dev->ieee80211_ptr;
1848 if (ntype != NL80211_IFTYPE_MESH_POINT)
1850 if (netif_running(dev))
1854 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1855 IEEE80211_MAX_MESH_ID_LEN);
1856 wdev->mesh_id_up_len =
1857 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1858 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1859 wdev->mesh_id_up_len);
1863 if (info->attrs[NL80211_ATTR_4ADDR]) {
1864 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1866 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1870 params.use_4addr = -1;
1873 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1874 if (ntype != NL80211_IFTYPE_MONITOR)
1876 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1886 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1890 if (!err && params.use_4addr != -1)
1891 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1896 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1899 struct vif_params params;
1900 struct net_device *dev;
1902 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1905 memset(¶ms, 0, sizeof(params));
1907 if (!info->attrs[NL80211_ATTR_IFNAME])
1910 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1911 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1912 if (type > NL80211_IFTYPE_MAX)
1916 if (!rdev->ops->add_virtual_intf ||
1917 !(rdev->wiphy.interface_modes & (1 << type)))
1920 if (info->attrs[NL80211_ATTR_4ADDR]) {
1921 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1922 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1927 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1928 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1930 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1931 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1932 type, err ? NULL : &flags, ¶ms);
1934 return PTR_ERR(dev);
1936 if (type == NL80211_IFTYPE_MESH_POINT &&
1937 info->attrs[NL80211_ATTR_MESH_ID]) {
1938 struct wireless_dev *wdev = dev->ieee80211_ptr;
1941 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1942 IEEE80211_MAX_MESH_ID_LEN);
1943 wdev->mesh_id_up_len =
1944 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1945 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1946 wdev->mesh_id_up_len);
1953 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1956 struct net_device *dev = info->user_ptr[1];
1958 if (!rdev->ops->del_virtual_intf)
1961 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1964 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1967 struct net_device *dev = info->user_ptr[1];
1970 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1973 if (!rdev->ops->set_noack_map)
1976 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1978 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1981 struct get_key_cookie {
1982 struct sk_buff *msg;
1987 static void get_key_callback(void *c, struct key_params *params)
1990 struct get_key_cookie *cookie = c;
1993 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
1994 params->key_len, params->key)) ||
1996 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
1997 params->seq_len, params->seq)) ||
1999 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2001 goto nla_put_failure;
2003 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2005 goto nla_put_failure;
2008 nla_put(cookie->msg, NL80211_KEY_DATA,
2009 params->key_len, params->key)) ||
2011 nla_put(cookie->msg, NL80211_KEY_SEQ,
2012 params->seq_len, params->seq)) ||
2014 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2016 goto nla_put_failure;
2018 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2019 goto nla_put_failure;
2021 nla_nest_end(cookie->msg, key);
2028 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2032 struct net_device *dev = info->user_ptr[1];
2034 const u8 *mac_addr = NULL;
2036 struct get_key_cookie cookie = {
2040 struct sk_buff *msg;
2042 if (info->attrs[NL80211_ATTR_KEY_IDX])
2043 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2048 if (info->attrs[NL80211_ATTR_MAC])
2049 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2051 pairwise = !!mac_addr;
2052 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2053 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2054 if (kt >= NUM_NL80211_KEYTYPES)
2056 if (kt != NL80211_KEYTYPE_GROUP &&
2057 kt != NL80211_KEYTYPE_PAIRWISE)
2059 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2062 if (!rdev->ops->get_key)
2065 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2069 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2070 NL80211_CMD_NEW_KEY);
2072 return PTR_ERR(hdr);
2075 cookie.idx = key_idx;
2077 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2078 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2079 goto nla_put_failure;
2081 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2082 goto nla_put_failure;
2084 if (pairwise && mac_addr &&
2085 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2088 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2089 mac_addr, &cookie, get_key_callback);
2095 goto nla_put_failure;
2097 genlmsg_end(msg, hdr);
2098 return genlmsg_reply(msg, info);
2107 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2110 struct key_parse key;
2112 struct net_device *dev = info->user_ptr[1];
2114 err = nl80211_parse_key(info, &key);
2121 /* only support setting default key */
2122 if (!key.def && !key.defmgmt)
2125 wdev_lock(dev->ieee80211_ptr);
2128 if (!rdev->ops->set_default_key) {
2133 err = nl80211_key_allowed(dev->ieee80211_ptr);
2137 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2138 key.def_uni, key.def_multi);
2143 #ifdef CONFIG_CFG80211_WEXT
2144 dev->ieee80211_ptr->wext.default_key = key.idx;
2147 if (key.def_uni || !key.def_multi) {
2152 if (!rdev->ops->set_default_mgmt_key) {
2157 err = nl80211_key_allowed(dev->ieee80211_ptr);
2161 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2166 #ifdef CONFIG_CFG80211_WEXT
2167 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2172 wdev_unlock(dev->ieee80211_ptr);
2177 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2179 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2181 struct net_device *dev = info->user_ptr[1];
2182 struct key_parse key;
2183 const u8 *mac_addr = NULL;
2185 err = nl80211_parse_key(info, &key);
2192 if (info->attrs[NL80211_ATTR_MAC])
2193 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2195 if (key.type == -1) {
2197 key.type = NL80211_KEYTYPE_PAIRWISE;
2199 key.type = NL80211_KEYTYPE_GROUP;
2203 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2204 key.type != NL80211_KEYTYPE_GROUP)
2207 if (!rdev->ops->add_key)
2210 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2211 key.type == NL80211_KEYTYPE_PAIRWISE,
2215 wdev_lock(dev->ieee80211_ptr);
2216 err = nl80211_key_allowed(dev->ieee80211_ptr);
2218 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2219 key.type == NL80211_KEYTYPE_PAIRWISE,
2221 wdev_unlock(dev->ieee80211_ptr);
2226 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2230 struct net_device *dev = info->user_ptr[1];
2231 u8 *mac_addr = NULL;
2232 struct key_parse key;
2234 err = nl80211_parse_key(info, &key);
2238 if (info->attrs[NL80211_ATTR_MAC])
2239 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2241 if (key.type == -1) {
2243 key.type = NL80211_KEYTYPE_PAIRWISE;
2245 key.type = NL80211_KEYTYPE_GROUP;
2249 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2250 key.type != NL80211_KEYTYPE_GROUP)
2253 if (!rdev->ops->del_key)
2256 wdev_lock(dev->ieee80211_ptr);
2257 err = nl80211_key_allowed(dev->ieee80211_ptr);
2259 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2260 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2264 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2265 key.type == NL80211_KEYTYPE_PAIRWISE,
2268 #ifdef CONFIG_CFG80211_WEXT
2270 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2271 dev->ieee80211_ptr->wext.default_key = -1;
2272 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2273 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2276 wdev_unlock(dev->ieee80211_ptr);
2281 static int nl80211_parse_beacon(struct genl_info *info,
2282 struct cfg80211_beacon_data *bcn)
2284 bool haveinfo = false;
2286 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2287 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2288 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2289 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2292 memset(bcn, 0, sizeof(*bcn));
2294 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2295 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2296 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2302 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2303 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2305 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2312 if (info->attrs[NL80211_ATTR_IE]) {
2313 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2314 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2317 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2318 bcn->proberesp_ies =
2319 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2320 bcn->proberesp_ies_len =
2321 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2324 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2325 bcn->assocresp_ies =
2326 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2327 bcn->assocresp_ies_len =
2328 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2331 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2333 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2334 bcn->probe_resp_len =
2335 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2341 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2342 struct cfg80211_ap_settings *params)
2344 struct wireless_dev *wdev;
2347 mutex_lock(&rdev->devlist_mtx);
2349 list_for_each_entry(wdev, &rdev->netdev_list, list) {
2350 if (wdev->iftype != NL80211_IFTYPE_AP &&
2351 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2354 if (!wdev->preset_chan)
2357 params->channel = wdev->preset_chan;
2358 params->channel_type = wdev->preset_chantype;
2363 mutex_unlock(&rdev->devlist_mtx);
2368 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2371 struct net_device *dev = info->user_ptr[1];
2372 struct wireless_dev *wdev = dev->ieee80211_ptr;
2373 struct cfg80211_ap_settings params;
2376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2377 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2380 if (!rdev->ops->start_ap)
2383 if (wdev->beacon_interval)
2386 memset(¶ms, 0, sizeof(params));
2388 /* these are required for START_AP */
2389 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2390 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2391 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2394 err = nl80211_parse_beacon(info, ¶ms.beacon);
2398 params.beacon_interval =
2399 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2400 params.dtim_period =
2401 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2403 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2408 * In theory, some of these attributes should be required here
2409 * but since they were not used when the command was originally
2410 * added, keep them optional for old user space programs to let
2411 * them continue to work with drivers that do not need the
2412 * additional information -- drivers must check!
2414 if (info->attrs[NL80211_ATTR_SSID]) {
2415 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2417 nla_len(info->attrs[NL80211_ATTR_SSID]);
2418 if (params.ssid_len == 0 ||
2419 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2423 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2424 params.hidden_ssid = nla_get_u32(
2425 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2426 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2427 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2428 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2432 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2434 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2435 params.auth_type = nla_get_u32(
2436 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2437 if (!nl80211_valid_auth_type(params.auth_type))
2440 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2442 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2443 NL80211_MAX_NR_CIPHER_SUITES);
2447 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2448 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2450 params.inactivity_timeout = nla_get_u16(
2451 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2454 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2455 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2457 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2458 !nl80211_valid_channel_type(info, &channel_type))
2461 params.channel = rdev_freq_to_chan(rdev,
2462 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2464 if (!params.channel)
2466 params.channel_type = channel_type;
2467 } else if (wdev->preset_chan) {
2468 params.channel = wdev->preset_chan;
2469 params.channel_type = wdev->preset_chantype;
2470 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2473 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2474 params.channel_type))
2477 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2479 wdev->preset_chan = params.channel;
2480 wdev->preset_chantype = params.channel_type;
2481 wdev->beacon_interval = params.beacon_interval;
2486 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2489 struct net_device *dev = info->user_ptr[1];
2490 struct wireless_dev *wdev = dev->ieee80211_ptr;
2491 struct cfg80211_beacon_data params;
2494 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2495 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2498 if (!rdev->ops->change_beacon)
2501 if (!wdev->beacon_interval)
2504 err = nl80211_parse_beacon(info, ¶ms);
2508 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2511 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2514 struct net_device *dev = info->user_ptr[1];
2515 struct wireless_dev *wdev = dev->ieee80211_ptr;
2518 if (!rdev->ops->stop_ap)
2521 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2522 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2525 if (!wdev->beacon_interval)
2528 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
2530 wdev->beacon_interval = 0;
2534 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2535 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2536 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2537 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2538 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2539 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2540 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2543 static int parse_station_flags(struct genl_info *info,
2544 enum nl80211_iftype iftype,
2545 struct station_parameters *params)
2547 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2552 * Try parsing the new attribute first so userspace
2553 * can specify both for older kernels.
2555 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2557 struct nl80211_sta_flag_update *sta_flags;
2559 sta_flags = nla_data(nla);
2560 params->sta_flags_mask = sta_flags->mask;
2561 params->sta_flags_set = sta_flags->set;
2562 if ((params->sta_flags_mask |
2563 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2568 /* if present, parse the old attribute */
2570 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2574 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2575 nla, sta_flags_policy))
2579 * Only allow certain flags for interface types so that
2580 * other attributes are silently ignored. Remember that
2581 * this is backward compatibility code with old userspace
2582 * and shouldn't be hit in other cases anyway.
2585 case NL80211_IFTYPE_AP:
2586 case NL80211_IFTYPE_AP_VLAN:
2587 case NL80211_IFTYPE_P2P_GO:
2588 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2589 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2590 BIT(NL80211_STA_FLAG_WME) |
2591 BIT(NL80211_STA_FLAG_MFP);
2593 case NL80211_IFTYPE_P2P_CLIENT:
2594 case NL80211_IFTYPE_STATION:
2595 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2596 BIT(NL80211_STA_FLAG_TDLS_PEER);
2598 case NL80211_IFTYPE_MESH_POINT:
2599 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2600 BIT(NL80211_STA_FLAG_MFP) |
2601 BIT(NL80211_STA_FLAG_AUTHORIZED);
2606 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2608 params->sta_flags_set |= (1<<flag);
2610 /* no longer support new API additions in old API */
2611 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2619 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2622 struct nlattr *rate;
2625 rate = nla_nest_start(msg, attr);
2627 goto nla_put_failure;
2629 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2630 bitrate = cfg80211_calculate_bitrate(info);
2632 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2633 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2634 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2635 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2636 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2637 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2638 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2639 goto nla_put_failure;
2641 nla_nest_end(msg, rate);
2648 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2650 struct cfg80211_registered_device *rdev,
2651 struct net_device *dev,
2652 const u8 *mac_addr, struct station_info *sinfo)
2655 struct nlattr *sinfoattr, *bss_param;
2657 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2661 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2662 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2663 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2664 goto nla_put_failure;
2666 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2668 goto nla_put_failure;
2669 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2670 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2671 sinfo->connected_time))
2672 goto nla_put_failure;
2673 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2674 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2675 sinfo->inactive_time))
2676 goto nla_put_failure;
2677 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2678 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2680 goto nla_put_failure;
2681 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2682 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2684 goto nla_put_failure;
2685 if ((sinfo->filled & STATION_INFO_LLID) &&
2686 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2687 goto nla_put_failure;
2688 if ((sinfo->filled & STATION_INFO_PLID) &&
2689 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2690 goto nla_put_failure;
2691 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2692 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2693 sinfo->plink_state))
2694 goto nla_put_failure;
2695 switch (rdev->wiphy.signal_type) {
2696 case CFG80211_SIGNAL_TYPE_MBM:
2697 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2698 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2700 goto nla_put_failure;
2701 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2702 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2704 goto nla_put_failure;
2709 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2710 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2711 NL80211_STA_INFO_TX_BITRATE))
2712 goto nla_put_failure;
2714 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2715 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2716 NL80211_STA_INFO_RX_BITRATE))
2717 goto nla_put_failure;
2719 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2720 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2722 goto nla_put_failure;
2723 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2724 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2726 goto nla_put_failure;
2727 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2728 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2730 goto nla_put_failure;
2731 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2732 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2734 goto nla_put_failure;
2735 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2736 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2737 sinfo->beacon_loss_count))
2738 goto nla_put_failure;
2739 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2740 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2742 goto nla_put_failure;
2744 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2745 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2746 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2747 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2748 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2749 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2750 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2751 sinfo->bss_param.dtim_period) ||
2752 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2753 sinfo->bss_param.beacon_interval))
2754 goto nla_put_failure;
2756 nla_nest_end(msg, bss_param);
2758 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2759 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2760 sizeof(struct nl80211_sta_flag_update),
2762 goto nla_put_failure;
2763 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2764 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2766 goto nla_put_failure;
2767 nla_nest_end(msg, sinfoattr);
2769 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2770 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2771 sinfo->assoc_req_ies))
2772 goto nla_put_failure;
2774 return genlmsg_end(msg, hdr);
2777 genlmsg_cancel(msg, hdr);
2781 static int nl80211_dump_station(struct sk_buff *skb,
2782 struct netlink_callback *cb)
2784 struct station_info sinfo;
2785 struct cfg80211_registered_device *dev;
2786 struct net_device *netdev;
2787 u8 mac_addr[ETH_ALEN];
2788 int sta_idx = cb->args[1];
2791 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2795 if (!dev->ops->dump_station) {
2801 memset(&sinfo, 0, sizeof(sinfo));
2802 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2809 if (nl80211_send_station(skb,
2810 NETLINK_CB(cb->skb).pid,
2811 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2812 dev, netdev, mac_addr,
2821 cb->args[1] = sta_idx;
2824 nl80211_finish_netdev_dump(dev);
2829 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2832 struct net_device *dev = info->user_ptr[1];
2833 struct station_info sinfo;
2834 struct sk_buff *msg;
2835 u8 *mac_addr = NULL;
2838 memset(&sinfo, 0, sizeof(sinfo));
2840 if (!info->attrs[NL80211_ATTR_MAC])
2843 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2845 if (!rdev->ops->get_station)
2848 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2852 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2856 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2857 rdev, dev, mac_addr, &sinfo) < 0) {
2862 return genlmsg_reply(msg, info);
2866 * Get vlan interface making sure it is running and on the right wiphy.
2868 static struct net_device *get_vlan(struct genl_info *info,
2869 struct cfg80211_registered_device *rdev)
2871 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2872 struct net_device *v;
2878 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2880 return ERR_PTR(-ENODEV);
2882 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2887 if (!netif_running(v)) {
2895 return ERR_PTR(ret);
2898 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2902 struct net_device *dev = info->user_ptr[1];
2903 struct station_parameters params;
2904 u8 *mac_addr = NULL;
2906 memset(¶ms, 0, sizeof(params));
2908 params.listen_interval = -1;
2909 params.plink_state = -1;
2911 if (info->attrs[NL80211_ATTR_STA_AID])
2914 if (!info->attrs[NL80211_ATTR_MAC])
2917 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2919 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2920 params.supported_rates =
2921 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2922 params.supported_rates_len =
2923 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2926 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2927 params.listen_interval =
2928 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2930 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2932 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2934 if (!rdev->ops->change_station)
2937 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2940 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2941 params.plink_action =
2942 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2944 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2945 params.plink_state =
2946 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2948 switch (dev->ieee80211_ptr->iftype) {
2949 case NL80211_IFTYPE_AP:
2950 case NL80211_IFTYPE_AP_VLAN:
2951 case NL80211_IFTYPE_P2P_GO:
2952 /* disallow mesh-specific things */
2953 if (params.plink_action)
2956 /* TDLS can't be set, ... */
2957 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2960 * ... but don't bother the driver with it. This works around
2961 * a hostapd/wpa_supplicant issue -- it always includes the
2962 * TLDS_PEER flag in the mask even for AP mode.
2964 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2966 /* accept only the listed bits */
2967 if (params.sta_flags_mask &
2968 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2969 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2970 BIT(NL80211_STA_FLAG_WME) |
2971 BIT(NL80211_STA_FLAG_MFP)))
2974 /* must be last in here for error handling */
2975 params.vlan = get_vlan(info, rdev);
2976 if (IS_ERR(params.vlan))
2977 return PTR_ERR(params.vlan);
2979 case NL80211_IFTYPE_P2P_CLIENT:
2980 case NL80211_IFTYPE_STATION:
2982 * Don't allow userspace to change the TDLS_PEER flag,
2983 * but silently ignore attempts to change it since we
2984 * don't have state here to verify that it doesn't try
2985 * to change the flag.
2987 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2989 case NL80211_IFTYPE_ADHOC:
2990 /* disallow things sta doesn't support */
2991 if (params.plink_action)
2995 if (params.listen_interval >= 0)
2997 /* reject any changes other than AUTHORIZED */
2998 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3001 case NL80211_IFTYPE_MESH_POINT:
3002 /* disallow things mesh doesn't support */
3007 if (params.listen_interval >= 0)
3010 * No special handling for TDLS here -- the userspace
3011 * mesh code doesn't have this bug.
3013 if (params.sta_flags_mask &
3014 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3015 BIT(NL80211_STA_FLAG_MFP) |
3016 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3023 /* be aware of params.vlan when changing code here */
3025 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3028 dev_put(params.vlan);
3033 static struct nla_policy
3034 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3035 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3036 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3039 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3043 struct net_device *dev = info->user_ptr[1];
3044 struct station_parameters params;
3045 u8 *mac_addr = NULL;
3047 memset(¶ms, 0, sizeof(params));
3049 if (!info->attrs[NL80211_ATTR_MAC])
3052 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3055 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3058 if (!info->attrs[NL80211_ATTR_STA_AID])
3061 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3062 params.supported_rates =
3063 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3064 params.supported_rates_len =
3065 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3066 params.listen_interval =
3067 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3069 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3070 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3073 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3075 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3077 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3078 params.plink_action =
3079 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3081 if (!rdev->ops->add_station)
3084 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3087 switch (dev->ieee80211_ptr->iftype) {
3088 case NL80211_IFTYPE_AP:
3089 case NL80211_IFTYPE_AP_VLAN:
3090 case NL80211_IFTYPE_P2P_GO:
3091 /* parse WME attributes if sta is WME capable */
3092 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3093 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3094 info->attrs[NL80211_ATTR_STA_WME]) {
3095 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3098 nla = info->attrs[NL80211_ATTR_STA_WME];
3099 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3100 nl80211_sta_wme_policy);
3104 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3105 params.uapsd_queues =
3106 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3107 if (params.uapsd_queues &
3108 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3111 if (tb[NL80211_STA_WME_MAX_SP])
3113 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3116 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3119 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3121 /* TDLS peers cannot be added */
3122 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3124 /* but don't bother the driver with it */
3125 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3127 /* must be last in here for error handling */
3128 params.vlan = get_vlan(info, rdev);
3129 if (IS_ERR(params.vlan))
3130 return PTR_ERR(params.vlan);
3132 case NL80211_IFTYPE_MESH_POINT:
3133 /* TDLS peers cannot be added */
3134 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3137 case NL80211_IFTYPE_STATION:
3138 /* Only TDLS peers can be added */
3139 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3141 /* Can only add if TDLS ... */
3142 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3144 /* ... with external setup is supported */
3145 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3152 /* be aware of params.vlan when changing code here */
3154 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3157 dev_put(params.vlan);
3161 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3164 struct net_device *dev = info->user_ptr[1];
3165 u8 *mac_addr = NULL;
3167 if (info->attrs[NL80211_ATTR_MAC])
3168 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3170 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3171 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3172 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3173 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3176 if (!rdev->ops->del_station)
3179 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3182 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3183 int flags, struct net_device *dev,
3184 u8 *dst, u8 *next_hop,
3185 struct mpath_info *pinfo)
3188 struct nlattr *pinfoattr;
3190 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3194 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3195 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3196 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3197 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3198 goto nla_put_failure;
3200 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3202 goto nla_put_failure;
3203 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3204 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3206 goto nla_put_failure;
3207 if (((pinfo->filled & MPATH_INFO_SN) &&
3208 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3209 ((pinfo->filled & MPATH_INFO_METRIC) &&
3210 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3212 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3213 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3215 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3216 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3218 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3219 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3220 pinfo->discovery_timeout)) ||
3221 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3222 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3223 pinfo->discovery_retries)))
3224 goto nla_put_failure;
3226 nla_nest_end(msg, pinfoattr);
3228 return genlmsg_end(msg, hdr);
3231 genlmsg_cancel(msg, hdr);
3235 static int nl80211_dump_mpath(struct sk_buff *skb,
3236 struct netlink_callback *cb)
3238 struct mpath_info pinfo;
3239 struct cfg80211_registered_device *dev;
3240 struct net_device *netdev;
3242 u8 next_hop[ETH_ALEN];
3243 int path_idx = cb->args[1];
3246 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3250 if (!dev->ops->dump_mpath) {
3255 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3261 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3262 dst, next_hop, &pinfo);
3268 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3269 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3270 netdev, dst, next_hop,
3279 cb->args[1] = path_idx;
3282 nl80211_finish_netdev_dump(dev);
3286 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3290 struct net_device *dev = info->user_ptr[1];
3291 struct mpath_info pinfo;
3292 struct sk_buff *msg;
3294 u8 next_hop[ETH_ALEN];
3296 memset(&pinfo, 0, sizeof(pinfo));
3298 if (!info->attrs[NL80211_ATTR_MAC])
3301 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3303 if (!rdev->ops->get_mpath)
3306 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3309 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3313 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3317 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3318 dev, dst, next_hop, &pinfo) < 0) {
3323 return genlmsg_reply(msg, info);
3326 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3328 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3329 struct net_device *dev = info->user_ptr[1];
3331 u8 *next_hop = NULL;
3333 if (!info->attrs[NL80211_ATTR_MAC])
3336 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3339 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3340 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3342 if (!rdev->ops->change_mpath)
3345 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3348 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3351 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3354 struct net_device *dev = info->user_ptr[1];
3356 u8 *next_hop = NULL;
3358 if (!info->attrs[NL80211_ATTR_MAC])
3361 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3364 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3365 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3367 if (!rdev->ops->add_mpath)
3370 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3373 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3376 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3378 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3379 struct net_device *dev = info->user_ptr[1];
3382 if (info->attrs[NL80211_ATTR_MAC])
3383 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3385 if (!rdev->ops->del_mpath)
3388 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3391 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3393 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3394 struct net_device *dev = info->user_ptr[1];
3395 struct bss_parameters params;
3397 memset(¶ms, 0, sizeof(params));
3398 /* default to not changing parameters */
3399 params.use_cts_prot = -1;
3400 params.use_short_preamble = -1;
3401 params.use_short_slot_time = -1;
3402 params.ap_isolate = -1;
3403 params.ht_opmode = -1;
3405 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3406 params.use_cts_prot =
3407 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3408 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3409 params.use_short_preamble =
3410 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3411 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3412 params.use_short_slot_time =
3413 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3414 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3415 params.basic_rates =
3416 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3417 params.basic_rates_len =
3418 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3420 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3421 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3422 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3424 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3426 if (!rdev->ops->change_bss)
3429 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3430 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3433 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3436 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3437 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3438 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3439 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3440 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3441 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3442 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3445 static int parse_reg_rule(struct nlattr *tb[],
3446 struct ieee80211_reg_rule *reg_rule)
3448 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3449 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3451 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3453 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3455 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3457 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3459 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3462 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3464 freq_range->start_freq_khz =
3465 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3466 freq_range->end_freq_khz =
3467 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3468 freq_range->max_bandwidth_khz =
3469 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3471 power_rule->max_eirp =
3472 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3474 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3475 power_rule->max_antenna_gain =
3476 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3481 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3487 * You should only get this when cfg80211 hasn't yet initialized
3488 * completely when built-in to the kernel right between the time
3489 * window between nl80211_init() and regulatory_init(), if that is
3492 mutex_lock(&cfg80211_mutex);
3493 if (unlikely(!cfg80211_regdomain)) {
3494 mutex_unlock(&cfg80211_mutex);
3495 return -EINPROGRESS;
3497 mutex_unlock(&cfg80211_mutex);
3499 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3502 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3504 r = regulatory_hint_user(data);
3509 static int nl80211_get_mesh_config(struct sk_buff *skb,
3510 struct genl_info *info)
3512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3513 struct net_device *dev = info->user_ptr[1];
3514 struct wireless_dev *wdev = dev->ieee80211_ptr;
3515 struct mesh_config cur_params;
3518 struct nlattr *pinfoattr;
3519 struct sk_buff *msg;
3521 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3524 if (!rdev->ops->get_mesh_config)
3528 /* If not connected, get default parameters */
3529 if (!wdev->mesh_id_len)
3530 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3532 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3539 /* Draw up a netlink message to send back */
3540 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3543 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3544 NL80211_CMD_GET_MESH_CONFIG);
3547 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3549 goto nla_put_failure;
3550 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3551 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3552 cur_params.dot11MeshRetryTimeout) ||
3553 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3554 cur_params.dot11MeshConfirmTimeout) ||
3555 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3556 cur_params.dot11MeshHoldingTimeout) ||
3557 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3558 cur_params.dot11MeshMaxPeerLinks) ||
3559 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3560 cur_params.dot11MeshMaxRetries) ||
3561 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3562 cur_params.dot11MeshTTL) ||
3563 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3564 cur_params.element_ttl) ||
3565 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3566 cur_params.auto_open_plinks) ||
3567 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3568 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3569 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3570 cur_params.dot11MeshHWMPmaxPREQretries) ||
3571 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3572 cur_params.path_refresh_time) ||
3573 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3574 cur_params.min_discovery_timeout) ||
3575 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3576 cur_params.dot11MeshHWMPactivePathTimeout) ||
3577 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3578 cur_params.dot11MeshHWMPpreqMinInterval) ||
3579 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3580 cur_params.dot11MeshHWMPperrMinInterval) ||
3581 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3582 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3583 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3584 cur_params.dot11MeshHWMPRootMode) ||
3585 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3586 cur_params.dot11MeshHWMPRannInterval) ||
3587 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3588 cur_params.dot11MeshGateAnnouncementProtocol) ||
3589 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3590 cur_params.dot11MeshForwarding) ||
3591 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3592 cur_params.rssi_threshold) ||
3593 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3594 cur_params.ht_opmode) ||
3595 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3596 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3597 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3598 cur_params.dot11MeshHWMProotInterval) ||
3599 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3600 cur_params.dot11MeshHWMPconfirmationInterval))
3601 goto nla_put_failure;
3602 nla_nest_end(msg, pinfoattr);
3603 genlmsg_end(msg, hdr);
3604 return genlmsg_reply(msg, info);
3607 genlmsg_cancel(msg, hdr);
3613 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3614 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3615 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3616 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3617 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3618 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3619 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3620 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3621 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3622 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3623 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3624 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3625 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3626 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3627 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3628 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3629 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3630 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3631 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3632 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3633 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3634 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3635 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3636 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3637 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3638 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3641 static const struct nla_policy
3642 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3643 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3644 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3645 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3646 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3647 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3648 .len = IEEE80211_MAX_DATA_LEN },
3649 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3652 static int nl80211_parse_mesh_config(struct genl_info *info,
3653 struct mesh_config *cfg,
3656 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3659 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3661 if (table[attr_num]) {\
3662 cfg->param = nla_fn(table[attr_num]); \
3663 mask |= (1 << (attr_num - 1)); \
3668 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3670 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3671 info->attrs[NL80211_ATTR_MESH_CONFIG],
3672 nl80211_meshconf_params_policy))
3675 /* This makes sure that there aren't more than 32 mesh config
3676 * parameters (otherwise our bitfield scheme would not work.) */
3677 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3679 /* Fill in the params struct */
3680 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3681 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3683 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3684 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3686 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3687 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3689 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3690 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3692 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3693 mask, NL80211_MESHCONF_MAX_RETRIES,
3695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3696 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3698 mask, NL80211_MESHCONF_ELEMENT_TTL,
3700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3701 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3704 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3707 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3710 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3712 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3713 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3716 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3718 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3719 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3722 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3725 dot11MeshHWMPnetDiameterTraversalTime, mask,
3726 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3729 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3730 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3731 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3733 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3734 dot11MeshGateAnnouncementProtocol, mask,
3735 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3738 mask, NL80211_MESHCONF_FORWARDING,
3740 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3741 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3743 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3744 mask, NL80211_MESHCONF_HT_OPMODE,
3746 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3748 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3750 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3751 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3753 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3754 dot11MeshHWMPconfirmationInterval, mask,
3755 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3762 #undef FILL_IN_MESH_PARAM_IF_SET
3765 static int nl80211_parse_mesh_setup(struct genl_info *info,
3766 struct mesh_setup *setup)
3768 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3770 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3772 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3773 info->attrs[NL80211_ATTR_MESH_SETUP],
3774 nl80211_mesh_setup_params_policy))
3777 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3778 setup->sync_method =
3779 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3780 IEEE80211_SYNC_METHOD_VENDOR :
3781 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3783 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3784 setup->path_sel_proto =
3785 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3786 IEEE80211_PATH_PROTOCOL_VENDOR :
3787 IEEE80211_PATH_PROTOCOL_HWMP;
3789 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3790 setup->path_metric =
3791 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3792 IEEE80211_PATH_METRIC_VENDOR :
3793 IEEE80211_PATH_METRIC_AIRTIME;
3796 if (tb[NL80211_MESH_SETUP_IE]) {
3797 struct nlattr *ieattr =
3798 tb[NL80211_MESH_SETUP_IE];
3799 if (!is_valid_ie_attr(ieattr))
3801 setup->ie = nla_data(ieattr);
3802 setup->ie_len = nla_len(ieattr);
3804 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3805 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3810 static int nl80211_update_mesh_config(struct sk_buff *skb,
3811 struct genl_info *info)
3813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3814 struct net_device *dev = info->user_ptr[1];
3815 struct wireless_dev *wdev = dev->ieee80211_ptr;
3816 struct mesh_config cfg;
3820 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3823 if (!rdev->ops->update_mesh_config)
3826 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3831 if (!wdev->mesh_id_len)
3835 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3843 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3845 struct sk_buff *msg;
3847 struct nlattr *nl_reg_rules;
3851 mutex_lock(&cfg80211_mutex);
3853 if (!cfg80211_regdomain)
3856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3862 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3863 NL80211_CMD_GET_REG);
3867 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3868 cfg80211_regdomain->alpha2) ||
3869 (cfg80211_regdomain->dfs_region &&
3870 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3871 cfg80211_regdomain->dfs_region)))
3872 goto nla_put_failure;
3874 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3876 goto nla_put_failure;
3878 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3879 struct nlattr *nl_reg_rule;
3880 const struct ieee80211_reg_rule *reg_rule;
3881 const struct ieee80211_freq_range *freq_range;
3882 const struct ieee80211_power_rule *power_rule;
3884 reg_rule = &cfg80211_regdomain->reg_rules[i];
3885 freq_range = ®_rule->freq_range;
3886 power_rule = ®_rule->power_rule;
3888 nl_reg_rule = nla_nest_start(msg, i);
3890 goto nla_put_failure;
3892 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3894 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3895 freq_range->start_freq_khz) ||
3896 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3897 freq_range->end_freq_khz) ||
3898 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3899 freq_range->max_bandwidth_khz) ||
3900 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3901 power_rule->max_antenna_gain) ||
3902 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3903 power_rule->max_eirp))
3904 goto nla_put_failure;
3906 nla_nest_end(msg, nl_reg_rule);
3909 nla_nest_end(msg, nl_reg_rules);
3911 genlmsg_end(msg, hdr);
3912 err = genlmsg_reply(msg, info);
3916 genlmsg_cancel(msg, hdr);
3921 mutex_unlock(&cfg80211_mutex);
3925 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3927 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3928 struct nlattr *nl_reg_rule;
3929 char *alpha2 = NULL;
3930 int rem_reg_rules = 0, r = 0;
3931 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3933 struct ieee80211_regdomain *rd = NULL;
3935 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3938 if (!info->attrs[NL80211_ATTR_REG_RULES])
3941 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3943 if (info->attrs[NL80211_ATTR_DFS_REGION])
3944 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3946 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3949 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3953 mutex_lock(&cfg80211_mutex);
3955 if (!reg_is_valid_request(alpha2)) {
3960 size_of_regd = sizeof(struct ieee80211_regdomain) +
3961 (num_rules * sizeof(struct ieee80211_reg_rule));
3963 rd = kzalloc(size_of_regd, GFP_KERNEL);
3969 rd->n_reg_rules = num_rules;
3970 rd->alpha2[0] = alpha2[0];
3971 rd->alpha2[1] = alpha2[1];
3974 * Disable DFS master mode if the DFS region was
3975 * not supported or known on this kernel.
3977 if (reg_supported_dfs_region(dfs_region))
3978 rd->dfs_region = dfs_region;
3980 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3982 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3983 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3985 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3991 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3997 BUG_ON(rule_idx != num_rules);
4001 mutex_unlock(&cfg80211_mutex);
4006 mutex_unlock(&cfg80211_mutex);
4011 static int validate_scan_freqs(struct nlattr *freqs)
4013 struct nlattr *attr1, *attr2;
4014 int n_channels = 0, tmp1, tmp2;
4016 nla_for_each_nested(attr1, freqs, tmp1) {
4019 * Some hardware has a limited channel list for
4020 * scanning, and it is pretty much nonsensical
4021 * to scan for a channel twice, so disallow that
4022 * and don't require drivers to check that the
4023 * channel list they get isn't longer than what
4024 * they can scan, as long as they can scan all
4025 * the channels they registered at once.
4027 nla_for_each_nested(attr2, freqs, tmp2)
4028 if (attr1 != attr2 &&
4029 nla_get_u32(attr1) == nla_get_u32(attr2))
4036 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4039 struct net_device *dev = info->user_ptr[1];
4040 struct cfg80211_scan_request *request;
4041 struct nlattr *attr;
4042 struct wiphy *wiphy;
4043 int err, tmp, n_ssids = 0, n_channels, i;
4046 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4049 wiphy = &rdev->wiphy;
4051 if (!rdev->ops->scan)
4057 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4058 n_channels = validate_scan_freqs(
4059 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4063 enum ieee80211_band band;
4066 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4067 if (wiphy->bands[band])
4068 n_channels += wiphy->bands[band]->n_channels;
4071 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4072 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4075 if (n_ssids > wiphy->max_scan_ssids)
4078 if (info->attrs[NL80211_ATTR_IE])
4079 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4083 if (ie_len > wiphy->max_scan_ie_len)
4086 request = kzalloc(sizeof(*request)
4087 + sizeof(*request->ssids) * n_ssids
4088 + sizeof(*request->channels) * n_channels
4089 + ie_len, GFP_KERNEL);
4094 request->ssids = (void *)&request->channels[n_channels];
4095 request->n_ssids = n_ssids;
4098 request->ie = (void *)(request->ssids + n_ssids);
4100 request->ie = (void *)(request->channels + n_channels);
4104 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4105 /* user specified, bail out if channel not found */
4106 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4107 struct ieee80211_channel *chan;
4109 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4116 /* ignore disabled channels */
4117 if (chan->flags & IEEE80211_CHAN_DISABLED)
4120 request->channels[i] = chan;
4124 enum ieee80211_band band;
4127 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4129 if (!wiphy->bands[band])
4131 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4132 struct ieee80211_channel *chan;
4134 chan = &wiphy->bands[band]->channels[j];
4136 if (chan->flags & IEEE80211_CHAN_DISABLED)
4139 request->channels[i] = chan;
4150 request->n_channels = i;
4153 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4154 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4155 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4159 request->ssids[i].ssid_len = nla_len(attr);
4160 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4165 if (info->attrs[NL80211_ATTR_IE]) {
4166 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4167 memcpy((void *)request->ie,
4168 nla_data(info->attrs[NL80211_ATTR_IE]),
4172 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4173 if (wiphy->bands[i])
4175 (1 << wiphy->bands[i]->n_bitrates) - 1;
4177 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4178 nla_for_each_nested(attr,
4179 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4181 enum ieee80211_band band = nla_type(attr);
4183 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4187 err = ieee80211_get_ratemask(wiphy->bands[band],
4190 &request->rates[band]);
4197 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4200 request->wiphy = &rdev->wiphy;
4202 rdev->scan_req = request;
4203 err = rdev->ops->scan(&rdev->wiphy, dev, request);
4206 nl80211_send_scan_start(rdev, dev);
4210 rdev->scan_req = NULL;
4217 static int nl80211_start_sched_scan(struct sk_buff *skb,
4218 struct genl_info *info)
4220 struct cfg80211_sched_scan_request *request;
4221 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4222 struct net_device *dev = info->user_ptr[1];
4223 struct nlattr *attr;
4224 struct wiphy *wiphy;
4225 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4227 enum ieee80211_band band;
4229 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4231 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4232 !rdev->ops->sched_scan_start)
4235 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4238 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4241 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4245 wiphy = &rdev->wiphy;
4247 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4248 n_channels = validate_scan_freqs(
4249 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4255 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4256 if (wiphy->bands[band])
4257 n_channels += wiphy->bands[band]->n_channels;
4260 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4261 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4265 if (n_ssids > wiphy->max_sched_scan_ssids)
4268 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4269 nla_for_each_nested(attr,
4270 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4274 if (n_match_sets > wiphy->max_match_sets)
4277 if (info->attrs[NL80211_ATTR_IE])
4278 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4282 if (ie_len > wiphy->max_sched_scan_ie_len)
4285 mutex_lock(&rdev->sched_scan_mtx);
4287 if (rdev->sched_scan_req) {
4292 request = kzalloc(sizeof(*request)
4293 + sizeof(*request->ssids) * n_ssids
4294 + sizeof(*request->match_sets) * n_match_sets
4295 + sizeof(*request->channels) * n_channels
4296 + ie_len, GFP_KERNEL);
4303 request->ssids = (void *)&request->channels[n_channels];
4304 request->n_ssids = n_ssids;
4307 request->ie = (void *)(request->ssids + n_ssids);
4309 request->ie = (void *)(request->channels + n_channels);
4314 request->match_sets = (void *)(request->ie + ie_len);
4315 else if (request->ssids)
4316 request->match_sets =
4317 (void *)(request->ssids + n_ssids);
4319 request->match_sets =
4320 (void *)(request->channels + n_channels);
4322 request->n_match_sets = n_match_sets;
4325 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4326 /* user specified, bail out if channel not found */
4327 nla_for_each_nested(attr,
4328 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4330 struct ieee80211_channel *chan;
4332 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4339 /* ignore disabled channels */
4340 if (chan->flags & IEEE80211_CHAN_DISABLED)
4343 request->channels[i] = chan;
4348 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4350 if (!wiphy->bands[band])
4352 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4353 struct ieee80211_channel *chan;
4355 chan = &wiphy->bands[band]->channels[j];
4357 if (chan->flags & IEEE80211_CHAN_DISABLED)
4360 request->channels[i] = chan;
4371 request->n_channels = i;
4374 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4375 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4377 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4381 request->ssids[i].ssid_len = nla_len(attr);
4382 memcpy(request->ssids[i].ssid, nla_data(attr),
4389 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4390 nla_for_each_nested(attr,
4391 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4393 struct nlattr *ssid, *rssi;
4395 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4396 nla_data(attr), nla_len(attr),
4397 nl80211_match_policy);
4398 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4400 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4404 memcpy(request->match_sets[i].ssid.ssid,
4405 nla_data(ssid), nla_len(ssid));
4406 request->match_sets[i].ssid.ssid_len =
4409 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4411 request->rssi_thold = nla_get_u32(rssi);
4413 request->rssi_thold =
4414 NL80211_SCAN_RSSI_THOLD_OFF;
4419 if (info->attrs[NL80211_ATTR_IE]) {
4420 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4421 memcpy((void *)request->ie,
4422 nla_data(info->attrs[NL80211_ATTR_IE]),
4427 request->wiphy = &rdev->wiphy;
4428 request->interval = interval;
4430 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4432 rdev->sched_scan_req = request;
4433 nl80211_send_sched_scan(rdev, dev,
4434 NL80211_CMD_START_SCHED_SCAN);
4441 mutex_unlock(&rdev->sched_scan_mtx);
4445 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4446 struct genl_info *info)
4448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4451 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4452 !rdev->ops->sched_scan_stop)
4455 mutex_lock(&rdev->sched_scan_mtx);
4456 err = __cfg80211_stop_sched_scan(rdev, false);
4457 mutex_unlock(&rdev->sched_scan_mtx);
4462 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4464 struct cfg80211_registered_device *rdev,
4465 struct wireless_dev *wdev,
4466 struct cfg80211_internal_bss *intbss)
4468 struct cfg80211_bss *res = &intbss->pub;
4472 ASSERT_WDEV_LOCK(wdev);
4474 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4475 NL80211_CMD_NEW_SCAN_RESULTS);
4479 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4481 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4482 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4483 goto nla_put_failure;
4485 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4487 goto nla_put_failure;
4488 if ((!is_zero_ether_addr(res->bssid) &&
4489 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4490 (res->information_elements && res->len_information_elements &&
4491 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4492 res->len_information_elements,
4493 res->information_elements)) ||
4494 (res->beacon_ies && res->len_beacon_ies &&
4495 res->beacon_ies != res->information_elements &&
4496 nla_put(msg, NL80211_BSS_BEACON_IES,
4497 res->len_beacon_ies, res->beacon_ies)))
4498 goto nla_put_failure;
4500 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4501 goto nla_put_failure;
4502 if (res->beacon_interval &&
4503 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4504 goto nla_put_failure;
4505 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4506 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4507 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4508 jiffies_to_msecs(jiffies - intbss->ts)))
4509 goto nla_put_failure;
4511 switch (rdev->wiphy.signal_type) {
4512 case CFG80211_SIGNAL_TYPE_MBM:
4513 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4514 goto nla_put_failure;
4516 case CFG80211_SIGNAL_TYPE_UNSPEC:
4517 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4518 goto nla_put_failure;
4524 switch (wdev->iftype) {
4525 case NL80211_IFTYPE_P2P_CLIENT:
4526 case NL80211_IFTYPE_STATION:
4527 if (intbss == wdev->current_bss &&
4528 nla_put_u32(msg, NL80211_BSS_STATUS,
4529 NL80211_BSS_STATUS_ASSOCIATED))
4530 goto nla_put_failure;
4532 case NL80211_IFTYPE_ADHOC:
4533 if (intbss == wdev->current_bss &&
4534 nla_put_u32(msg, NL80211_BSS_STATUS,
4535 NL80211_BSS_STATUS_IBSS_JOINED))
4536 goto nla_put_failure;
4542 nla_nest_end(msg, bss);
4544 return genlmsg_end(msg, hdr);
4547 genlmsg_cancel(msg, hdr);
4551 static int nl80211_dump_scan(struct sk_buff *skb,
4552 struct netlink_callback *cb)
4554 struct cfg80211_registered_device *rdev;
4555 struct net_device *dev;
4556 struct cfg80211_internal_bss *scan;
4557 struct wireless_dev *wdev;
4558 int start = cb->args[1], idx = 0;
4561 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4565 wdev = dev->ieee80211_ptr;
4568 spin_lock_bh(&rdev->bss_lock);
4569 cfg80211_bss_expire(rdev);
4571 cb->seq = rdev->bss_generation;
4573 list_for_each_entry(scan, &rdev->bss_list, list) {
4576 if (nl80211_send_bss(skb, cb,
4577 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4578 rdev, wdev, scan) < 0) {
4584 spin_unlock_bh(&rdev->bss_lock);
4588 nl80211_finish_netdev_dump(rdev);
4593 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4594 int flags, struct net_device *dev,
4595 struct survey_info *survey)
4598 struct nlattr *infoattr;
4600 hdr = nl80211hdr_put(msg, pid, seq, flags,
4601 NL80211_CMD_NEW_SURVEY_RESULTS);
4605 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4606 goto nla_put_failure;
4608 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4610 goto nla_put_failure;
4612 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4613 survey->channel->center_freq))
4614 goto nla_put_failure;
4616 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4617 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4618 goto nla_put_failure;
4619 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4620 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4621 goto nla_put_failure;
4622 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4623 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4624 survey->channel_time))
4625 goto nla_put_failure;
4626 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4627 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4628 survey->channel_time_busy))
4629 goto nla_put_failure;
4630 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4631 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4632 survey->channel_time_ext_busy))
4633 goto nla_put_failure;
4634 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4635 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4636 survey->channel_time_rx))
4637 goto nla_put_failure;
4638 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4639 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4640 survey->channel_time_tx))
4641 goto nla_put_failure;
4643 nla_nest_end(msg, infoattr);
4645 return genlmsg_end(msg, hdr);
4648 genlmsg_cancel(msg, hdr);
4652 static int nl80211_dump_survey(struct sk_buff *skb,
4653 struct netlink_callback *cb)
4655 struct survey_info survey;
4656 struct cfg80211_registered_device *dev;
4657 struct net_device *netdev;
4658 int survey_idx = cb->args[1];
4661 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4665 if (!dev->ops->dump_survey) {
4671 struct ieee80211_channel *chan;
4673 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4680 /* Survey without a channel doesn't make sense */
4681 if (!survey.channel) {
4686 chan = ieee80211_get_channel(&dev->wiphy,
4687 survey.channel->center_freq);
4688 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4693 if (nl80211_send_survey(skb,
4694 NETLINK_CB(cb->skb).pid,
4695 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4703 cb->args[1] = survey_idx;
4706 nl80211_finish_netdev_dump(dev);
4710 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4712 return auth_type <= NL80211_AUTHTYPE_MAX;
4715 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4717 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4718 NL80211_WPA_VERSION_2));
4721 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4724 struct net_device *dev = info->user_ptr[1];
4725 struct ieee80211_channel *chan;
4726 const u8 *bssid, *ssid, *ie = NULL;
4727 int err, ssid_len, ie_len = 0;
4728 enum nl80211_auth_type auth_type;
4729 struct key_parse key;
4730 bool local_state_change;
4732 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4735 if (!info->attrs[NL80211_ATTR_MAC])
4738 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4741 if (!info->attrs[NL80211_ATTR_SSID])
4744 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4747 err = nl80211_parse_key(info, &key);
4752 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4754 if (!key.p.key || !key.p.key_len)
4756 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4757 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4758 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4759 key.p.key_len != WLAN_KEY_LEN_WEP104))
4771 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4772 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4781 if (!rdev->ops->auth)
4784 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4785 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4788 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4789 chan = ieee80211_get_channel(&rdev->wiphy,
4790 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4791 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4794 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4795 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4797 if (info->attrs[NL80211_ATTR_IE]) {
4798 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4799 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4802 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4803 if (!nl80211_valid_auth_type(auth_type))
4806 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4809 * Since we no longer track auth state, ignore
4810 * requests to only change local state.
4812 if (local_state_change)
4815 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4816 ssid, ssid_len, ie, ie_len,
4817 key.p.key, key.p.key_len, key.idx);
4820 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4821 struct genl_info *info,
4822 struct cfg80211_crypto_settings *settings,
4825 memset(settings, 0, sizeof(*settings));
4827 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4829 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4831 proto = nla_get_u16(
4832 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4833 settings->control_port_ethertype = cpu_to_be16(proto);
4834 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4837 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4838 settings->control_port_no_encrypt = true;
4840 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4842 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4846 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4847 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4848 settings->n_ciphers_pairwise = len / sizeof(u32);
4850 if (len % sizeof(u32))
4853 if (settings->n_ciphers_pairwise > cipher_limit)
4856 memcpy(settings->ciphers_pairwise, data, len);
4858 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4859 if (!cfg80211_supported_cipher_suite(
4861 settings->ciphers_pairwise[i]))
4865 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4866 settings->cipher_group =
4867 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4868 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4869 settings->cipher_group))
4873 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4874 settings->wpa_versions =
4875 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4876 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4880 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4884 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4885 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4886 settings->n_akm_suites = len / sizeof(u32);
4888 if (len % sizeof(u32))
4891 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4894 memcpy(settings->akm_suites, data, len);
4900 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4903 struct net_device *dev = info->user_ptr[1];
4904 struct cfg80211_crypto_settings crypto;
4905 struct ieee80211_channel *chan;
4906 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4907 int err, ssid_len, ie_len = 0;
4908 bool use_mfp = false;
4910 struct ieee80211_ht_cap *ht_capa = NULL;
4911 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4913 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4916 if (!info->attrs[NL80211_ATTR_MAC] ||
4917 !info->attrs[NL80211_ATTR_SSID] ||
4918 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4921 if (!rdev->ops->assoc)
4924 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4925 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4928 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4930 chan = ieee80211_get_channel(&rdev->wiphy,
4931 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4932 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4935 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4936 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4938 if (info->attrs[NL80211_ATTR_IE]) {
4939 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4940 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4943 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4944 enum nl80211_mfp mfp =
4945 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4946 if (mfp == NL80211_MFP_REQUIRED)
4948 else if (mfp != NL80211_MFP_NO)
4952 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4953 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4955 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4956 flags |= ASSOC_REQ_DISABLE_HT;
4958 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4960 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4962 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4965 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4968 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4970 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4971 ssid, ssid_len, ie, ie_len, use_mfp,
4972 &crypto, flags, ht_capa,
4978 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4980 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4981 struct net_device *dev = info->user_ptr[1];
4982 const u8 *ie = NULL, *bssid;
4985 bool local_state_change;
4987 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4990 if (!info->attrs[NL80211_ATTR_MAC])
4993 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4996 if (!rdev->ops->deauth)
4999 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5000 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5003 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5005 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5006 if (reason_code == 0) {
5007 /* Reason Code 0 is reserved */
5011 if (info->attrs[NL80211_ATTR_IE]) {
5012 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5013 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5016 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5018 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5019 local_state_change);
5022 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5025 struct net_device *dev = info->user_ptr[1];
5026 const u8 *ie = NULL, *bssid;
5029 bool local_state_change;
5031 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5034 if (!info->attrs[NL80211_ATTR_MAC])
5037 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5040 if (!rdev->ops->disassoc)
5043 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5044 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5047 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5049 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5050 if (reason_code == 0) {
5051 /* Reason Code 0 is reserved */
5055 if (info->attrs[NL80211_ATTR_IE]) {
5056 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5057 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5060 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5062 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5063 local_state_change);
5067 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5068 int mcast_rate[IEEE80211_NUM_BANDS],
5071 struct wiphy *wiphy = &rdev->wiphy;
5075 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5076 struct ieee80211_supported_band *sband;
5078 sband = wiphy->bands[band];
5082 for (i = 0; i < sband->n_bitrates; i++) {
5083 if (sband->bitrates[i].bitrate == rateval) {
5084 mcast_rate[band] = i + 1;
5094 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5097 struct net_device *dev = info->user_ptr[1];
5098 struct cfg80211_ibss_params ibss;
5099 struct wiphy *wiphy;
5100 struct cfg80211_cached_keys *connkeys = NULL;
5103 memset(&ibss, 0, sizeof(ibss));
5105 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5108 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5109 !info->attrs[NL80211_ATTR_SSID] ||
5110 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5113 ibss.beacon_interval = 100;
5115 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5116 ibss.beacon_interval =
5117 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5118 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5122 if (!rdev->ops->join_ibss)
5125 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5128 wiphy = &rdev->wiphy;
5130 if (info->attrs[NL80211_ATTR_MAC]) {
5131 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5133 if (!is_valid_ether_addr(ibss.bssid))
5136 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5137 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5139 if (info->attrs[NL80211_ATTR_IE]) {
5140 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5141 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5144 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5145 enum nl80211_channel_type channel_type;
5147 if (!nl80211_valid_channel_type(info, &channel_type))
5150 if (channel_type != NL80211_CHAN_NO_HT &&
5151 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5154 ibss.channel_type = channel_type;
5156 ibss.channel_type = NL80211_CHAN_NO_HT;
5159 ibss.channel = rdev_freq_to_chan(rdev,
5160 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5162 if (!ibss.channel ||
5163 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5164 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5167 /* Both channels should be able to initiate communication */
5168 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5169 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5170 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5174 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5175 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5177 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5179 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5181 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5182 struct ieee80211_supported_band *sband =
5183 wiphy->bands[ibss.channel->band];
5185 err = ieee80211_get_ratemask(sband, rates, n_rates,
5191 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5192 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5193 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5196 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5197 connkeys = nl80211_parse_connkeys(rdev,
5198 info->attrs[NL80211_ATTR_KEYS]);
5199 if (IS_ERR(connkeys))
5200 return PTR_ERR(connkeys);
5204 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5206 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5212 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5215 struct net_device *dev = info->user_ptr[1];
5217 if (!rdev->ops->leave_ibss)
5220 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5223 return cfg80211_leave_ibss(rdev, dev, false);
5226 #ifdef CONFIG_NL80211_TESTMODE
5227 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5231 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5236 if (!info->attrs[NL80211_ATTR_TESTDATA])
5240 if (rdev->ops->testmode_cmd) {
5241 rdev->testmode_info = info;
5242 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5243 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5244 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5245 rdev->testmode_info = NULL;
5251 static int nl80211_testmode_dump(struct sk_buff *skb,
5252 struct netlink_callback *cb)
5254 struct cfg80211_registered_device *rdev;
5262 * 0 is a valid index, but not valid for args[0],
5263 * so we need to offset by 1.
5265 phy_idx = cb->args[0] - 1;
5267 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5268 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5273 mutex_lock(&cfg80211_mutex);
5274 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5275 nl80211_fam.attrbuf);
5277 mutex_unlock(&cfg80211_mutex);
5278 return PTR_ERR(rdev);
5280 phy_idx = rdev->wiphy_idx;
5282 mutex_unlock(&cfg80211_mutex);
5284 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5286 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5290 data = nla_data((void *)cb->args[1]);
5291 data_len = nla_len((void *)cb->args[1]);
5294 mutex_lock(&cfg80211_mutex);
5295 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5297 mutex_unlock(&cfg80211_mutex);
5300 cfg80211_lock_rdev(rdev);
5301 mutex_unlock(&cfg80211_mutex);
5303 if (!rdev->ops->testmode_dump) {
5309 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5310 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5311 NL80211_CMD_TESTMODE);
5312 struct nlattr *tmdata;
5314 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5315 genlmsg_cancel(skb, hdr);
5319 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5321 genlmsg_cancel(skb, hdr);
5324 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5326 nla_nest_end(skb, tmdata);
5328 if (err == -ENOBUFS || err == -ENOENT) {
5329 genlmsg_cancel(skb, hdr);
5332 genlmsg_cancel(skb, hdr);
5336 genlmsg_end(skb, hdr);
5341 cb->args[0] = phy_idx + 1;
5343 cfg80211_unlock_rdev(rdev);
5347 static struct sk_buff *
5348 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5349 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5351 struct sk_buff *skb;
5353 struct nlattr *data;
5355 skb = nlmsg_new(approxlen + 100, gfp);
5359 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5365 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5366 goto nla_put_failure;
5367 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5369 ((void **)skb->cb)[0] = rdev;
5370 ((void **)skb->cb)[1] = hdr;
5371 ((void **)skb->cb)[2] = data;
5380 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5383 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5385 if (WARN_ON(!rdev->testmode_info))
5388 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5389 rdev->testmode_info->snd_pid,
5390 rdev->testmode_info->snd_seq,
5393 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5395 int cfg80211_testmode_reply(struct sk_buff *skb)
5397 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5398 void *hdr = ((void **)skb->cb)[1];
5399 struct nlattr *data = ((void **)skb->cb)[2];
5401 if (WARN_ON(!rdev->testmode_info)) {
5406 nla_nest_end(skb, data);
5407 genlmsg_end(skb, hdr);
5408 return genlmsg_reply(skb, rdev->testmode_info);
5410 EXPORT_SYMBOL(cfg80211_testmode_reply);
5412 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5413 int approxlen, gfp_t gfp)
5415 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5417 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5419 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5421 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5423 void *hdr = ((void **)skb->cb)[1];
5424 struct nlattr *data = ((void **)skb->cb)[2];
5426 nla_nest_end(skb, data);
5427 genlmsg_end(skb, hdr);
5428 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5430 EXPORT_SYMBOL(cfg80211_testmode_event);
5433 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5435 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5436 struct net_device *dev = info->user_ptr[1];
5437 struct cfg80211_connect_params connect;
5438 struct wiphy *wiphy;
5439 struct cfg80211_cached_keys *connkeys = NULL;
5442 memset(&connect, 0, sizeof(connect));
5444 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5447 if (!info->attrs[NL80211_ATTR_SSID] ||
5448 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5451 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5453 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5454 if (!nl80211_valid_auth_type(connect.auth_type))
5457 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5459 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5461 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5462 NL80211_MAX_NR_CIPHER_SUITES);
5466 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5467 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5470 wiphy = &rdev->wiphy;
5472 connect.bg_scan_period = -1;
5473 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5474 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5475 connect.bg_scan_period =
5476 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5479 if (info->attrs[NL80211_ATTR_MAC])
5480 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5481 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5482 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5484 if (info->attrs[NL80211_ATTR_IE]) {
5485 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5486 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5489 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5491 ieee80211_get_channel(wiphy,
5492 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5493 if (!connect.channel ||
5494 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5498 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5499 connkeys = nl80211_parse_connkeys(rdev,
5500 info->attrs[NL80211_ATTR_KEYS]);
5501 if (IS_ERR(connkeys))
5502 return PTR_ERR(connkeys);
5505 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5506 connect.flags |= ASSOC_REQ_DISABLE_HT;
5508 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5509 memcpy(&connect.ht_capa_mask,
5510 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5511 sizeof(connect.ht_capa_mask));
5513 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5514 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5516 memcpy(&connect.ht_capa,
5517 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5518 sizeof(connect.ht_capa));
5521 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5527 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5529 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5530 struct net_device *dev = info->user_ptr[1];
5533 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5534 reason = WLAN_REASON_DEAUTH_LEAVING;
5536 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5541 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5542 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5545 return cfg80211_disconnect(rdev, dev, reason, true);
5548 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5555 if (!info->attrs[NL80211_ATTR_PID])
5558 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5560 net = get_net_ns_by_pid(pid);
5562 return PTR_ERR(net);
5566 /* check if anything to do */
5567 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5568 err = cfg80211_switch_netns(rdev, net);
5574 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5577 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5578 struct cfg80211_pmksa *pmksa) = NULL;
5579 struct net_device *dev = info->user_ptr[1];
5580 struct cfg80211_pmksa pmksa;
5582 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5584 if (!info->attrs[NL80211_ATTR_MAC])
5587 if (!info->attrs[NL80211_ATTR_PMKID])
5590 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5591 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5593 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5594 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5597 switch (info->genlhdr->cmd) {
5598 case NL80211_CMD_SET_PMKSA:
5599 rdev_ops = rdev->ops->set_pmksa;
5601 case NL80211_CMD_DEL_PMKSA:
5602 rdev_ops = rdev->ops->del_pmksa;
5612 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5615 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5617 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5618 struct net_device *dev = info->user_ptr[1];
5620 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5621 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5624 if (!rdev->ops->flush_pmksa)
5627 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5630 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5633 struct net_device *dev = info->user_ptr[1];
5634 u8 action_code, dialog_token;
5638 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5639 !rdev->ops->tdls_mgmt)
5642 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5643 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5644 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5645 !info->attrs[NL80211_ATTR_IE] ||
5646 !info->attrs[NL80211_ATTR_MAC])
5649 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5650 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5651 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5652 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5654 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5655 dialog_token, status_code,
5656 nla_data(info->attrs[NL80211_ATTR_IE]),
5657 nla_len(info->attrs[NL80211_ATTR_IE]));
5660 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5663 struct net_device *dev = info->user_ptr[1];
5664 enum nl80211_tdls_operation operation;
5667 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5668 !rdev->ops->tdls_oper)
5671 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5672 !info->attrs[NL80211_ATTR_MAC])
5675 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5676 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5678 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5681 static int nl80211_remain_on_channel(struct sk_buff *skb,
5682 struct genl_info *info)
5684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5685 struct net_device *dev = info->user_ptr[1];
5686 struct ieee80211_channel *chan;
5687 struct sk_buff *msg;
5690 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5694 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5695 !info->attrs[NL80211_ATTR_DURATION])
5698 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5700 if (!rdev->ops->remain_on_channel ||
5701 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5705 * We should be on that channel for at least a minimum amount of
5706 * time (10ms) but no longer than the driver supports.
5708 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5709 duration > rdev->wiphy.max_remain_on_channel_duration)
5712 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5713 !nl80211_valid_channel_type(info, &channel_type))
5716 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5717 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5721 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5725 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5726 NL80211_CMD_REMAIN_ON_CHANNEL);
5733 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5734 channel_type, duration, &cookie);
5739 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5740 goto nla_put_failure;
5742 genlmsg_end(msg, hdr);
5744 return genlmsg_reply(msg, info);
5753 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5754 struct genl_info *info)
5756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5757 struct net_device *dev = info->user_ptr[1];
5760 if (!info->attrs[NL80211_ATTR_COOKIE])
5763 if (!rdev->ops->cancel_remain_on_channel)
5766 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5768 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5771 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5772 u8 *rates, u8 rates_len)
5777 for (i = 0; i < rates_len; i++) {
5778 int rate = (rates[i] & 0x7f) * 5;
5780 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5781 struct ieee80211_rate *srate =
5782 &sband->bitrates[ridx];
5783 if (rate == srate->bitrate) {
5788 if (ridx == sband->n_bitrates)
5789 return 0; /* rate not found */
5795 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5796 u8 *rates, u8 rates_len,
5797 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5801 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5803 for (i = 0; i < rates_len; i++) {
5806 ridx = rates[i] / 8;
5807 rbit = BIT(rates[i] % 8);
5809 /* check validity */
5810 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5813 /* check availability */
5814 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5823 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5824 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5825 .len = NL80211_MAX_SUPP_RATES },
5826 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5827 .len = NL80211_MAX_SUPP_HT_RATES },
5830 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5831 struct genl_info *info)
5833 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5835 struct cfg80211_bitrate_mask mask;
5837 struct net_device *dev = info->user_ptr[1];
5838 struct nlattr *tx_rates;
5839 struct ieee80211_supported_band *sband;
5841 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5844 if (!rdev->ops->set_bitrate_mask)
5847 memset(&mask, 0, sizeof(mask));
5848 /* Default to all rates enabled */
5849 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5850 sband = rdev->wiphy.bands[i];
5851 mask.control[i].legacy =
5852 sband ? (1 << sband->n_bitrates) - 1 : 0;
5854 memcpy(mask.control[i].mcs,
5855 sband->ht_cap.mcs.rx_mask,
5856 sizeof(mask.control[i].mcs));
5858 memset(mask.control[i].mcs, 0,
5859 sizeof(mask.control[i].mcs));
5863 * The nested attribute uses enum nl80211_band as the index. This maps
5864 * directly to the enum ieee80211_band values used in cfg80211.
5866 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5867 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5869 enum ieee80211_band band = nla_type(tx_rates);
5870 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5872 sband = rdev->wiphy.bands[band];
5875 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5876 nla_len(tx_rates), nl80211_txattr_policy);
5877 if (tb[NL80211_TXRATE_LEGACY]) {
5878 mask.control[band].legacy = rateset_to_mask(
5880 nla_data(tb[NL80211_TXRATE_LEGACY]),
5881 nla_len(tb[NL80211_TXRATE_LEGACY]));
5882 if ((mask.control[band].legacy == 0) &&
5883 nla_len(tb[NL80211_TXRATE_LEGACY]))
5886 if (tb[NL80211_TXRATE_MCS]) {
5887 if (!ht_rateset_to_mask(
5889 nla_data(tb[NL80211_TXRATE_MCS]),
5890 nla_len(tb[NL80211_TXRATE_MCS]),
5891 mask.control[band].mcs))
5895 if (mask.control[band].legacy == 0) {
5896 /* don't allow empty legacy rates if HT
5897 * is not even supported. */
5898 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5901 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5902 if (mask.control[band].mcs[i])
5905 /* legacy and mcs rates may not be both empty */
5906 if (i == IEEE80211_HT_MCS_MASK_LEN)
5911 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5914 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5917 struct net_device *dev = info->user_ptr[1];
5918 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5920 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5923 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5924 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5926 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5927 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5928 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5929 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5930 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5931 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5932 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5935 /* not much point in registering if we can't reply */
5936 if (!rdev->ops->mgmt_tx)
5939 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5941 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5942 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5945 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5947 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5948 struct net_device *dev = info->user_ptr[1];
5949 struct ieee80211_channel *chan;
5950 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5951 bool channel_type_valid = false;
5956 struct sk_buff *msg = NULL;
5957 unsigned int wait = 0;
5958 bool offchan, no_cck, dont_wait_for_ack;
5960 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5962 if (!info->attrs[NL80211_ATTR_FRAME] ||
5963 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5966 if (!rdev->ops->mgmt_tx)
5969 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5970 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5971 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5972 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5974 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5975 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5978 if (info->attrs[NL80211_ATTR_DURATION]) {
5979 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5981 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5984 * We should wait on the channel for at least a minimum amount
5985 * of time (10ms) but no longer than the driver supports.
5987 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5988 wait > rdev->wiphy.max_remain_on_channel_duration)
5993 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5994 if (!nl80211_valid_channel_type(info, &channel_type))
5996 channel_type_valid = true;
5999 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6001 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6004 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6006 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6007 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6011 if (!dont_wait_for_ack) {
6012 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6016 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6025 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6026 channel_type_valid, wait,
6027 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6028 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6029 no_cck, dont_wait_for_ack, &cookie);
6034 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6035 goto nla_put_failure;
6037 genlmsg_end(msg, hdr);
6038 return genlmsg_reply(msg, info);
6050 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6053 struct net_device *dev = info->user_ptr[1];
6056 if (!info->attrs[NL80211_ATTR_COOKIE])
6059 if (!rdev->ops->mgmt_tx_cancel_wait)
6062 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6063 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6064 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6065 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6066 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6067 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6070 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6072 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6075 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6077 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6078 struct wireless_dev *wdev;
6079 struct net_device *dev = info->user_ptr[1];
6084 if (!info->attrs[NL80211_ATTR_PS_STATE])
6087 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6089 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6092 wdev = dev->ieee80211_ptr;
6094 if (!rdev->ops->set_power_mgmt)
6097 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6099 if (state == wdev->ps)
6102 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6109 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6111 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6112 enum nl80211_ps_state ps_state;
6113 struct wireless_dev *wdev;
6114 struct net_device *dev = info->user_ptr[1];
6115 struct sk_buff *msg;
6119 wdev = dev->ieee80211_ptr;
6121 if (!rdev->ops->set_power_mgmt)
6124 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6128 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6129 NL80211_CMD_GET_POWER_SAVE);
6136 ps_state = NL80211_PS_ENABLED;
6138 ps_state = NL80211_PS_DISABLED;
6140 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6141 goto nla_put_failure;
6143 genlmsg_end(msg, hdr);
6144 return genlmsg_reply(msg, info);
6153 static struct nla_policy
6154 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6155 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6156 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6157 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6160 static int nl80211_set_cqm_rssi(struct genl_info *info,
6161 s32 threshold, u32 hysteresis)
6163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6164 struct wireless_dev *wdev;
6165 struct net_device *dev = info->user_ptr[1];
6170 wdev = dev->ieee80211_ptr;
6172 if (!rdev->ops->set_cqm_rssi_config)
6175 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6176 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6179 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6180 threshold, hysteresis);
6183 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6185 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6189 cqm = info->attrs[NL80211_ATTR_CQM];
6195 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6196 nl80211_attr_cqm_policy);
6200 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6201 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6204 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6205 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6206 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6214 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6216 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6217 struct net_device *dev = info->user_ptr[1];
6218 struct mesh_config cfg;
6219 struct mesh_setup setup;
6222 /* start with default */
6223 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6224 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6226 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6227 /* and parse parameters if given */
6228 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6233 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6234 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6237 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6238 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6240 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6241 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6242 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6245 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6246 /* parse additional setup parameters if given */
6247 err = nl80211_parse_mesh_setup(info, &setup);
6252 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6253 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6255 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6256 !nl80211_valid_channel_type(info, &channel_type))
6259 setup.channel = rdev_freq_to_chan(rdev,
6260 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6264 setup.channel_type = channel_type;
6266 /* cfg80211_join_mesh() will sort it out */
6267 setup.channel = NULL;
6270 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6273 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6276 struct net_device *dev = info->user_ptr[1];
6278 return cfg80211_leave_mesh(rdev, dev);
6282 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6285 struct sk_buff *msg;
6288 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6291 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6295 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6296 NL80211_CMD_GET_WOWLAN);
6298 goto nla_put_failure;
6301 struct nlattr *nl_wowlan;
6303 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6305 goto nla_put_failure;
6307 if ((rdev->wowlan->any &&
6308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6309 (rdev->wowlan->disconnect &&
6310 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6311 (rdev->wowlan->magic_pkt &&
6312 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6313 (rdev->wowlan->gtk_rekey_failure &&
6314 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6315 (rdev->wowlan->eap_identity_req &&
6316 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6317 (rdev->wowlan->four_way_handshake &&
6318 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6319 (rdev->wowlan->rfkill_release &&
6320 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6321 goto nla_put_failure;
6322 if (rdev->wowlan->n_patterns) {
6323 struct nlattr *nl_pats, *nl_pat;
6326 nl_pats = nla_nest_start(msg,
6327 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6329 goto nla_put_failure;
6331 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6332 nl_pat = nla_nest_start(msg, i + 1);
6334 goto nla_put_failure;
6335 pat_len = rdev->wowlan->patterns[i].pattern_len;
6336 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6337 DIV_ROUND_UP(pat_len, 8),
6338 rdev->wowlan->patterns[i].mask) ||
6339 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6341 rdev->wowlan->patterns[i].pattern))
6342 goto nla_put_failure;
6343 nla_nest_end(msg, nl_pat);
6345 nla_nest_end(msg, nl_pats);
6348 nla_nest_end(msg, nl_wowlan);
6351 genlmsg_end(msg, hdr);
6352 return genlmsg_reply(msg, info);
6359 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6362 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6363 struct cfg80211_wowlan no_triggers = {};
6364 struct cfg80211_wowlan new_triggers = {};
6365 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6367 bool prev_enabled = rdev->wowlan;
6369 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6372 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6375 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6376 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6377 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6378 nl80211_wowlan_policy);
6382 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6383 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6385 new_triggers.any = true;
6388 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6389 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6391 new_triggers.disconnect = true;
6394 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6395 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6397 new_triggers.magic_pkt = true;
6400 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6403 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6404 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6406 new_triggers.gtk_rekey_failure = true;
6409 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6410 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6412 new_triggers.eap_identity_req = true;
6415 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6416 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6418 new_triggers.four_way_handshake = true;
6421 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6422 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6424 new_triggers.rfkill_release = true;
6427 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6430 int rem, pat_len, mask_len;
6431 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6433 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6436 if (n_patterns > wowlan->n_patterns)
6439 new_triggers.patterns = kcalloc(n_patterns,
6440 sizeof(new_triggers.patterns[0]),
6442 if (!new_triggers.patterns)
6445 new_triggers.n_patterns = n_patterns;
6448 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6450 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6451 nla_data(pat), nla_len(pat), NULL);
6453 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6454 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6456 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6457 mask_len = DIV_ROUND_UP(pat_len, 8);
6458 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6461 if (pat_len > wowlan->pattern_max_len ||
6462 pat_len < wowlan->pattern_min_len)
6465 new_triggers.patterns[i].mask =
6466 kmalloc(mask_len + pat_len, GFP_KERNEL);
6467 if (!new_triggers.patterns[i].mask) {
6471 new_triggers.patterns[i].pattern =
6472 new_triggers.patterns[i].mask + mask_len;
6473 memcpy(new_triggers.patterns[i].mask,
6474 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6476 new_triggers.patterns[i].pattern_len = pat_len;
6477 memcpy(new_triggers.patterns[i].pattern,
6478 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6484 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6485 struct cfg80211_wowlan *ntrig;
6486 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6492 cfg80211_rdev_free_wowlan(rdev);
6493 rdev->wowlan = ntrig;
6496 cfg80211_rdev_free_wowlan(rdev);
6497 rdev->wowlan = NULL;
6500 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6501 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6505 for (i = 0; i < new_triggers.n_patterns; i++)
6506 kfree(new_triggers.patterns[i].mask);
6507 kfree(new_triggers.patterns);
6512 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6515 struct net_device *dev = info->user_ptr[1];
6516 struct wireless_dev *wdev = dev->ieee80211_ptr;
6517 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6518 struct cfg80211_gtk_rekey_data rekey_data;
6521 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6524 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6525 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6526 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6527 nl80211_rekey_policy);
6531 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6533 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6535 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6538 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6540 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6542 memcpy(rekey_data.replay_ctr,
6543 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6544 NL80211_REPLAY_CTR_LEN);
6547 if (!wdev->current_bss) {
6552 if (!rdev->ops->set_rekey_data) {
6557 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6563 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6564 struct genl_info *info)
6566 struct net_device *dev = info->user_ptr[1];
6567 struct wireless_dev *wdev = dev->ieee80211_ptr;
6569 if (wdev->iftype != NL80211_IFTYPE_AP &&
6570 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6573 if (wdev->ap_unexpected_nlpid)
6576 wdev->ap_unexpected_nlpid = info->snd_pid;
6580 static int nl80211_probe_client(struct sk_buff *skb,
6581 struct genl_info *info)
6583 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6584 struct net_device *dev = info->user_ptr[1];
6585 struct wireless_dev *wdev = dev->ieee80211_ptr;
6586 struct sk_buff *msg;
6592 if (wdev->iftype != NL80211_IFTYPE_AP &&
6593 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6596 if (!info->attrs[NL80211_ATTR_MAC])
6599 if (!rdev->ops->probe_client)
6602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6606 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6607 NL80211_CMD_PROBE_CLIENT);
6614 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6616 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6620 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6621 goto nla_put_failure;
6623 genlmsg_end(msg, hdr);
6625 return genlmsg_reply(msg, info);
6634 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6638 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6641 if (rdev->ap_beacons_nlpid)
6644 rdev->ap_beacons_nlpid = info->snd_pid;
6649 #define NL80211_FLAG_NEED_WIPHY 0x01
6650 #define NL80211_FLAG_NEED_NETDEV 0x02
6651 #define NL80211_FLAG_NEED_RTNL 0x04
6652 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6653 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6654 NL80211_FLAG_CHECK_NETDEV_UP)
6656 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6657 struct genl_info *info)
6659 struct cfg80211_registered_device *rdev;
6660 struct net_device *dev;
6662 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6667 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6668 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6672 return PTR_ERR(rdev);
6674 info->user_ptr[0] = rdev;
6675 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6676 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6683 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6684 !netif_running(dev)) {
6685 cfg80211_unlock_rdev(rdev);
6691 info->user_ptr[0] = rdev;
6692 info->user_ptr[1] = dev;
6698 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6699 struct genl_info *info)
6701 if (info->user_ptr[0])
6702 cfg80211_unlock_rdev(info->user_ptr[0]);
6703 if (info->user_ptr[1])
6704 dev_put(info->user_ptr[1]);
6705 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6709 static struct genl_ops nl80211_ops[] = {
6711 .cmd = NL80211_CMD_GET_WIPHY,
6712 .doit = nl80211_get_wiphy,
6713 .dumpit = nl80211_dump_wiphy,
6714 .policy = nl80211_policy,
6715 /* can be retrieved by unprivileged users */
6716 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6719 .cmd = NL80211_CMD_SET_WIPHY,
6720 .doit = nl80211_set_wiphy,
6721 .policy = nl80211_policy,
6722 .flags = GENL_ADMIN_PERM,
6723 .internal_flags = NL80211_FLAG_NEED_RTNL,
6726 .cmd = NL80211_CMD_GET_INTERFACE,
6727 .doit = nl80211_get_interface,
6728 .dumpit = nl80211_dump_interface,
6729 .policy = nl80211_policy,
6730 /* can be retrieved by unprivileged users */
6731 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6734 .cmd = NL80211_CMD_SET_INTERFACE,
6735 .doit = nl80211_set_interface,
6736 .policy = nl80211_policy,
6737 .flags = GENL_ADMIN_PERM,
6738 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6739 NL80211_FLAG_NEED_RTNL,
6742 .cmd = NL80211_CMD_NEW_INTERFACE,
6743 .doit = nl80211_new_interface,
6744 .policy = nl80211_policy,
6745 .flags = GENL_ADMIN_PERM,
6746 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6747 NL80211_FLAG_NEED_RTNL,
6750 .cmd = NL80211_CMD_DEL_INTERFACE,
6751 .doit = nl80211_del_interface,
6752 .policy = nl80211_policy,
6753 .flags = GENL_ADMIN_PERM,
6754 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6755 NL80211_FLAG_NEED_RTNL,
6758 .cmd = NL80211_CMD_GET_KEY,
6759 .doit = nl80211_get_key,
6760 .policy = nl80211_policy,
6761 .flags = GENL_ADMIN_PERM,
6762 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6763 NL80211_FLAG_NEED_RTNL,
6766 .cmd = NL80211_CMD_SET_KEY,
6767 .doit = nl80211_set_key,
6768 .policy = nl80211_policy,
6769 .flags = GENL_ADMIN_PERM,
6770 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6771 NL80211_FLAG_NEED_RTNL,
6774 .cmd = NL80211_CMD_NEW_KEY,
6775 .doit = nl80211_new_key,
6776 .policy = nl80211_policy,
6777 .flags = GENL_ADMIN_PERM,
6778 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6779 NL80211_FLAG_NEED_RTNL,
6782 .cmd = NL80211_CMD_DEL_KEY,
6783 .doit = nl80211_del_key,
6784 .policy = nl80211_policy,
6785 .flags = GENL_ADMIN_PERM,
6786 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6787 NL80211_FLAG_NEED_RTNL,
6790 .cmd = NL80211_CMD_SET_BEACON,
6791 .policy = nl80211_policy,
6792 .flags = GENL_ADMIN_PERM,
6793 .doit = nl80211_set_beacon,
6794 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6795 NL80211_FLAG_NEED_RTNL,
6798 .cmd = NL80211_CMD_START_AP,
6799 .policy = nl80211_policy,
6800 .flags = GENL_ADMIN_PERM,
6801 .doit = nl80211_start_ap,
6802 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6803 NL80211_FLAG_NEED_RTNL,
6806 .cmd = NL80211_CMD_STOP_AP,
6807 .policy = nl80211_policy,
6808 .flags = GENL_ADMIN_PERM,
6809 .doit = nl80211_stop_ap,
6810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6811 NL80211_FLAG_NEED_RTNL,
6814 .cmd = NL80211_CMD_GET_STATION,
6815 .doit = nl80211_get_station,
6816 .dumpit = nl80211_dump_station,
6817 .policy = nl80211_policy,
6818 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6819 NL80211_FLAG_NEED_RTNL,
6822 .cmd = NL80211_CMD_SET_STATION,
6823 .doit = nl80211_set_station,
6824 .policy = nl80211_policy,
6825 .flags = GENL_ADMIN_PERM,
6826 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6827 NL80211_FLAG_NEED_RTNL,
6830 .cmd = NL80211_CMD_NEW_STATION,
6831 .doit = nl80211_new_station,
6832 .policy = nl80211_policy,
6833 .flags = GENL_ADMIN_PERM,
6834 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6835 NL80211_FLAG_NEED_RTNL,
6838 .cmd = NL80211_CMD_DEL_STATION,
6839 .doit = nl80211_del_station,
6840 .policy = nl80211_policy,
6841 .flags = GENL_ADMIN_PERM,
6842 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6843 NL80211_FLAG_NEED_RTNL,
6846 .cmd = NL80211_CMD_GET_MPATH,
6847 .doit = nl80211_get_mpath,
6848 .dumpit = nl80211_dump_mpath,
6849 .policy = nl80211_policy,
6850 .flags = GENL_ADMIN_PERM,
6851 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6852 NL80211_FLAG_NEED_RTNL,
6855 .cmd = NL80211_CMD_SET_MPATH,
6856 .doit = nl80211_set_mpath,
6857 .policy = nl80211_policy,
6858 .flags = GENL_ADMIN_PERM,
6859 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6860 NL80211_FLAG_NEED_RTNL,
6863 .cmd = NL80211_CMD_NEW_MPATH,
6864 .doit = nl80211_new_mpath,
6865 .policy = nl80211_policy,
6866 .flags = GENL_ADMIN_PERM,
6867 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6868 NL80211_FLAG_NEED_RTNL,
6871 .cmd = NL80211_CMD_DEL_MPATH,
6872 .doit = nl80211_del_mpath,
6873 .policy = nl80211_policy,
6874 .flags = GENL_ADMIN_PERM,
6875 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6876 NL80211_FLAG_NEED_RTNL,
6879 .cmd = NL80211_CMD_SET_BSS,
6880 .doit = nl80211_set_bss,
6881 .policy = nl80211_policy,
6882 .flags = GENL_ADMIN_PERM,
6883 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6884 NL80211_FLAG_NEED_RTNL,
6887 .cmd = NL80211_CMD_GET_REG,
6888 .doit = nl80211_get_reg,
6889 .policy = nl80211_policy,
6890 /* can be retrieved by unprivileged users */
6893 .cmd = NL80211_CMD_SET_REG,
6894 .doit = nl80211_set_reg,
6895 .policy = nl80211_policy,
6896 .flags = GENL_ADMIN_PERM,
6899 .cmd = NL80211_CMD_REQ_SET_REG,
6900 .doit = nl80211_req_set_reg,
6901 .policy = nl80211_policy,
6902 .flags = GENL_ADMIN_PERM,
6905 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6906 .doit = nl80211_get_mesh_config,
6907 .policy = nl80211_policy,
6908 /* can be retrieved by unprivileged users */
6909 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6910 NL80211_FLAG_NEED_RTNL,
6913 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6914 .doit = nl80211_update_mesh_config,
6915 .policy = nl80211_policy,
6916 .flags = GENL_ADMIN_PERM,
6917 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6918 NL80211_FLAG_NEED_RTNL,
6921 .cmd = NL80211_CMD_TRIGGER_SCAN,
6922 .doit = nl80211_trigger_scan,
6923 .policy = nl80211_policy,
6924 .flags = GENL_ADMIN_PERM,
6925 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6926 NL80211_FLAG_NEED_RTNL,
6929 .cmd = NL80211_CMD_GET_SCAN,
6930 .policy = nl80211_policy,
6931 .dumpit = nl80211_dump_scan,
6934 .cmd = NL80211_CMD_START_SCHED_SCAN,
6935 .doit = nl80211_start_sched_scan,
6936 .policy = nl80211_policy,
6937 .flags = GENL_ADMIN_PERM,
6938 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6939 NL80211_FLAG_NEED_RTNL,
6942 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6943 .doit = nl80211_stop_sched_scan,
6944 .policy = nl80211_policy,
6945 .flags = GENL_ADMIN_PERM,
6946 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6947 NL80211_FLAG_NEED_RTNL,
6950 .cmd = NL80211_CMD_AUTHENTICATE,
6951 .doit = nl80211_authenticate,
6952 .policy = nl80211_policy,
6953 .flags = GENL_ADMIN_PERM,
6954 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6955 NL80211_FLAG_NEED_RTNL,
6958 .cmd = NL80211_CMD_ASSOCIATE,
6959 .doit = nl80211_associate,
6960 .policy = nl80211_policy,
6961 .flags = GENL_ADMIN_PERM,
6962 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6963 NL80211_FLAG_NEED_RTNL,
6966 .cmd = NL80211_CMD_DEAUTHENTICATE,
6967 .doit = nl80211_deauthenticate,
6968 .policy = nl80211_policy,
6969 .flags = GENL_ADMIN_PERM,
6970 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6971 NL80211_FLAG_NEED_RTNL,
6974 .cmd = NL80211_CMD_DISASSOCIATE,
6975 .doit = nl80211_disassociate,
6976 .policy = nl80211_policy,
6977 .flags = GENL_ADMIN_PERM,
6978 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6979 NL80211_FLAG_NEED_RTNL,
6982 .cmd = NL80211_CMD_JOIN_IBSS,
6983 .doit = nl80211_join_ibss,
6984 .policy = nl80211_policy,
6985 .flags = GENL_ADMIN_PERM,
6986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6987 NL80211_FLAG_NEED_RTNL,
6990 .cmd = NL80211_CMD_LEAVE_IBSS,
6991 .doit = nl80211_leave_ibss,
6992 .policy = nl80211_policy,
6993 .flags = GENL_ADMIN_PERM,
6994 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6995 NL80211_FLAG_NEED_RTNL,
6997 #ifdef CONFIG_NL80211_TESTMODE
6999 .cmd = NL80211_CMD_TESTMODE,
7000 .doit = nl80211_testmode_do,
7001 .dumpit = nl80211_testmode_dump,
7002 .policy = nl80211_policy,
7003 .flags = GENL_ADMIN_PERM,
7004 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7005 NL80211_FLAG_NEED_RTNL,
7009 .cmd = NL80211_CMD_CONNECT,
7010 .doit = nl80211_connect,
7011 .policy = nl80211_policy,
7012 .flags = GENL_ADMIN_PERM,
7013 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7014 NL80211_FLAG_NEED_RTNL,
7017 .cmd = NL80211_CMD_DISCONNECT,
7018 .doit = nl80211_disconnect,
7019 .policy = nl80211_policy,
7020 .flags = GENL_ADMIN_PERM,
7021 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7022 NL80211_FLAG_NEED_RTNL,
7025 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7026 .doit = nl80211_wiphy_netns,
7027 .policy = nl80211_policy,
7028 .flags = GENL_ADMIN_PERM,
7029 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7030 NL80211_FLAG_NEED_RTNL,
7033 .cmd = NL80211_CMD_GET_SURVEY,
7034 .policy = nl80211_policy,
7035 .dumpit = nl80211_dump_survey,
7038 .cmd = NL80211_CMD_SET_PMKSA,
7039 .doit = nl80211_setdel_pmksa,
7040 .policy = nl80211_policy,
7041 .flags = GENL_ADMIN_PERM,
7042 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7043 NL80211_FLAG_NEED_RTNL,
7046 .cmd = NL80211_CMD_DEL_PMKSA,
7047 .doit = nl80211_setdel_pmksa,
7048 .policy = nl80211_policy,
7049 .flags = GENL_ADMIN_PERM,
7050 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7051 NL80211_FLAG_NEED_RTNL,
7054 .cmd = NL80211_CMD_FLUSH_PMKSA,
7055 .doit = nl80211_flush_pmksa,
7056 .policy = nl80211_policy,
7057 .flags = GENL_ADMIN_PERM,
7058 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7059 NL80211_FLAG_NEED_RTNL,
7062 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7063 .doit = nl80211_remain_on_channel,
7064 .policy = nl80211_policy,
7065 .flags = GENL_ADMIN_PERM,
7066 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7067 NL80211_FLAG_NEED_RTNL,
7070 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7071 .doit = nl80211_cancel_remain_on_channel,
7072 .policy = nl80211_policy,
7073 .flags = GENL_ADMIN_PERM,
7074 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7075 NL80211_FLAG_NEED_RTNL,
7078 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7079 .doit = nl80211_set_tx_bitrate_mask,
7080 .policy = nl80211_policy,
7081 .flags = GENL_ADMIN_PERM,
7082 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7083 NL80211_FLAG_NEED_RTNL,
7086 .cmd = NL80211_CMD_REGISTER_FRAME,
7087 .doit = nl80211_register_mgmt,
7088 .policy = nl80211_policy,
7089 .flags = GENL_ADMIN_PERM,
7090 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7091 NL80211_FLAG_NEED_RTNL,
7094 .cmd = NL80211_CMD_FRAME,
7095 .doit = nl80211_tx_mgmt,
7096 .policy = nl80211_policy,
7097 .flags = GENL_ADMIN_PERM,
7098 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7099 NL80211_FLAG_NEED_RTNL,
7102 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7103 .doit = nl80211_tx_mgmt_cancel_wait,
7104 .policy = nl80211_policy,
7105 .flags = GENL_ADMIN_PERM,
7106 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7107 NL80211_FLAG_NEED_RTNL,
7110 .cmd = NL80211_CMD_SET_POWER_SAVE,
7111 .doit = nl80211_set_power_save,
7112 .policy = nl80211_policy,
7113 .flags = GENL_ADMIN_PERM,
7114 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7115 NL80211_FLAG_NEED_RTNL,
7118 .cmd = NL80211_CMD_GET_POWER_SAVE,
7119 .doit = nl80211_get_power_save,
7120 .policy = nl80211_policy,
7121 /* can be retrieved by unprivileged users */
7122 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7123 NL80211_FLAG_NEED_RTNL,
7126 .cmd = NL80211_CMD_SET_CQM,
7127 .doit = nl80211_set_cqm,
7128 .policy = nl80211_policy,
7129 .flags = GENL_ADMIN_PERM,
7130 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7131 NL80211_FLAG_NEED_RTNL,
7134 .cmd = NL80211_CMD_SET_CHANNEL,
7135 .doit = nl80211_set_channel,
7136 .policy = nl80211_policy,
7137 .flags = GENL_ADMIN_PERM,
7138 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7139 NL80211_FLAG_NEED_RTNL,
7142 .cmd = NL80211_CMD_SET_WDS_PEER,
7143 .doit = nl80211_set_wds_peer,
7144 .policy = nl80211_policy,
7145 .flags = GENL_ADMIN_PERM,
7146 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7147 NL80211_FLAG_NEED_RTNL,
7150 .cmd = NL80211_CMD_JOIN_MESH,
7151 .doit = nl80211_join_mesh,
7152 .policy = nl80211_policy,
7153 .flags = GENL_ADMIN_PERM,
7154 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7155 NL80211_FLAG_NEED_RTNL,
7158 .cmd = NL80211_CMD_LEAVE_MESH,
7159 .doit = nl80211_leave_mesh,
7160 .policy = nl80211_policy,
7161 .flags = GENL_ADMIN_PERM,
7162 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7163 NL80211_FLAG_NEED_RTNL,
7167 .cmd = NL80211_CMD_GET_WOWLAN,
7168 .doit = nl80211_get_wowlan,
7169 .policy = nl80211_policy,
7170 /* can be retrieved by unprivileged users */
7171 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7172 NL80211_FLAG_NEED_RTNL,
7175 .cmd = NL80211_CMD_SET_WOWLAN,
7176 .doit = nl80211_set_wowlan,
7177 .policy = nl80211_policy,
7178 .flags = GENL_ADMIN_PERM,
7179 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7180 NL80211_FLAG_NEED_RTNL,
7184 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7185 .doit = nl80211_set_rekey_data,
7186 .policy = nl80211_policy,
7187 .flags = GENL_ADMIN_PERM,
7188 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7189 NL80211_FLAG_NEED_RTNL,
7192 .cmd = NL80211_CMD_TDLS_MGMT,
7193 .doit = nl80211_tdls_mgmt,
7194 .policy = nl80211_policy,
7195 .flags = GENL_ADMIN_PERM,
7196 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7197 NL80211_FLAG_NEED_RTNL,
7200 .cmd = NL80211_CMD_TDLS_OPER,
7201 .doit = nl80211_tdls_oper,
7202 .policy = nl80211_policy,
7203 .flags = GENL_ADMIN_PERM,
7204 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7205 NL80211_FLAG_NEED_RTNL,
7208 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7209 .doit = nl80211_register_unexpected_frame,
7210 .policy = nl80211_policy,
7211 .flags = GENL_ADMIN_PERM,
7212 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7213 NL80211_FLAG_NEED_RTNL,
7216 .cmd = NL80211_CMD_PROBE_CLIENT,
7217 .doit = nl80211_probe_client,
7218 .policy = nl80211_policy,
7219 .flags = GENL_ADMIN_PERM,
7220 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7221 NL80211_FLAG_NEED_RTNL,
7224 .cmd = NL80211_CMD_REGISTER_BEACONS,
7225 .doit = nl80211_register_beacons,
7226 .policy = nl80211_policy,
7227 .flags = GENL_ADMIN_PERM,
7228 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7229 NL80211_FLAG_NEED_RTNL,
7232 .cmd = NL80211_CMD_SET_NOACK_MAP,
7233 .doit = nl80211_set_noack_map,
7234 .policy = nl80211_policy,
7235 .flags = GENL_ADMIN_PERM,
7236 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7237 NL80211_FLAG_NEED_RTNL,
7242 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7246 /* multicast groups */
7247 static struct genl_multicast_group nl80211_config_mcgrp = {
7250 static struct genl_multicast_group nl80211_scan_mcgrp = {
7253 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7254 .name = "regulatory",
7257 /* notification functions */
7259 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7261 struct sk_buff *msg;
7263 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7267 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7272 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7273 nl80211_config_mcgrp.id, GFP_KERNEL);
7276 static int nl80211_add_scan_req(struct sk_buff *msg,
7277 struct cfg80211_registered_device *rdev)
7279 struct cfg80211_scan_request *req = rdev->scan_req;
7280 struct nlattr *nest;
7283 ASSERT_RDEV_LOCK(rdev);
7288 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7290 goto nla_put_failure;
7291 for (i = 0; i < req->n_ssids; i++) {
7292 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7293 goto nla_put_failure;
7295 nla_nest_end(msg, nest);
7297 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7299 goto nla_put_failure;
7300 for (i = 0; i < req->n_channels; i++) {
7301 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7302 goto nla_put_failure;
7304 nla_nest_end(msg, nest);
7307 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7308 goto nla_put_failure;
7315 static int nl80211_send_scan_msg(struct sk_buff *msg,
7316 struct cfg80211_registered_device *rdev,
7317 struct net_device *netdev,
7318 u32 pid, u32 seq, int flags,
7323 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7327 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7328 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7329 goto nla_put_failure;
7331 /* ignore errors and send incomplete event anyway */
7332 nl80211_add_scan_req(msg, rdev);
7334 return genlmsg_end(msg, hdr);
7337 genlmsg_cancel(msg, hdr);
7342 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7343 struct cfg80211_registered_device *rdev,
7344 struct net_device *netdev,
7345 u32 pid, u32 seq, int flags, u32 cmd)
7349 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7353 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7354 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7355 goto nla_put_failure;
7357 return genlmsg_end(msg, hdr);
7360 genlmsg_cancel(msg, hdr);
7364 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7365 struct net_device *netdev)
7367 struct sk_buff *msg;
7369 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7373 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7374 NL80211_CMD_TRIGGER_SCAN) < 0) {
7379 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7380 nl80211_scan_mcgrp.id, GFP_KERNEL);
7383 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7384 struct net_device *netdev)
7386 struct sk_buff *msg;
7388 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7392 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7393 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7398 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7399 nl80211_scan_mcgrp.id, GFP_KERNEL);
7402 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7403 struct net_device *netdev)
7405 struct sk_buff *msg;
7407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7411 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7412 NL80211_CMD_SCAN_ABORTED) < 0) {
7417 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7418 nl80211_scan_mcgrp.id, GFP_KERNEL);
7421 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7422 struct net_device *netdev)
7424 struct sk_buff *msg;
7426 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7430 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7431 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7436 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7437 nl80211_scan_mcgrp.id, GFP_KERNEL);
7440 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7441 struct net_device *netdev, u32 cmd)
7443 struct sk_buff *msg;
7445 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7449 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7454 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7455 nl80211_scan_mcgrp.id, GFP_KERNEL);
7459 * This can happen on global regulatory changes or device specific settings
7460 * based on custom world regulatory domains.
7462 void nl80211_send_reg_change_event(struct regulatory_request *request)
7464 struct sk_buff *msg;
7467 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7471 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7477 /* Userspace can always count this one always being set */
7478 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7479 goto nla_put_failure;
7481 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7482 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7483 NL80211_REGDOM_TYPE_WORLD))
7484 goto nla_put_failure;
7485 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7486 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7487 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7488 goto nla_put_failure;
7489 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7490 request->intersect) {
7491 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7492 NL80211_REGDOM_TYPE_INTERSECTION))
7493 goto nla_put_failure;
7495 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7496 NL80211_REGDOM_TYPE_COUNTRY) ||
7497 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7499 goto nla_put_failure;
7502 if (wiphy_idx_valid(request->wiphy_idx) &&
7503 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7504 goto nla_put_failure;
7506 genlmsg_end(msg, hdr);
7509 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7516 genlmsg_cancel(msg, hdr);
7520 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7521 struct net_device *netdev,
7522 const u8 *buf, size_t len,
7523 enum nl80211_commands cmd, gfp_t gfp)
7525 struct sk_buff *msg;
7528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7532 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7538 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7539 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7540 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7541 goto nla_put_failure;
7543 genlmsg_end(msg, hdr);
7545 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7546 nl80211_mlme_mcgrp.id, gfp);
7550 genlmsg_cancel(msg, hdr);
7554 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7555 struct net_device *netdev, const u8 *buf,
7556 size_t len, gfp_t gfp)
7558 nl80211_send_mlme_event(rdev, netdev, buf, len,
7559 NL80211_CMD_AUTHENTICATE, gfp);
7562 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7563 struct net_device *netdev, const u8 *buf,
7564 size_t len, gfp_t gfp)
7566 nl80211_send_mlme_event(rdev, netdev, buf, len,
7567 NL80211_CMD_ASSOCIATE, gfp);
7570 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7571 struct net_device *netdev, const u8 *buf,
7572 size_t len, gfp_t gfp)
7574 nl80211_send_mlme_event(rdev, netdev, buf, len,
7575 NL80211_CMD_DEAUTHENTICATE, gfp);
7578 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7579 struct net_device *netdev, const u8 *buf,
7580 size_t len, gfp_t gfp)
7582 nl80211_send_mlme_event(rdev, netdev, buf, len,
7583 NL80211_CMD_DISASSOCIATE, gfp);
7586 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7587 struct net_device *netdev, const u8 *buf,
7588 size_t len, gfp_t gfp)
7590 nl80211_send_mlme_event(rdev, netdev, buf, len,
7591 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7594 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7595 struct net_device *netdev, const u8 *buf,
7596 size_t len, gfp_t gfp)
7598 nl80211_send_mlme_event(rdev, netdev, buf, len,
7599 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7602 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7603 struct net_device *netdev, int cmd,
7604 const u8 *addr, gfp_t gfp)
7606 struct sk_buff *msg;
7609 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7613 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7619 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7620 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7621 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7622 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7623 goto nla_put_failure;
7625 genlmsg_end(msg, hdr);
7627 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7628 nl80211_mlme_mcgrp.id, gfp);
7632 genlmsg_cancel(msg, hdr);
7636 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7637 struct net_device *netdev, const u8 *addr,
7640 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7644 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7645 struct net_device *netdev, const u8 *addr,
7648 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7652 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7653 struct net_device *netdev, const u8 *bssid,
7654 const u8 *req_ie, size_t req_ie_len,
7655 const u8 *resp_ie, size_t resp_ie_len,
7656 u16 status, gfp_t gfp)
7658 struct sk_buff *msg;
7661 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7665 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7671 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7672 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7673 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7674 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7676 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7678 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7679 goto nla_put_failure;
7681 genlmsg_end(msg, hdr);
7683 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7684 nl80211_mlme_mcgrp.id, gfp);
7688 genlmsg_cancel(msg, hdr);
7693 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7694 struct net_device *netdev, const u8 *bssid,
7695 const u8 *req_ie, size_t req_ie_len,
7696 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7698 struct sk_buff *msg;
7701 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7711 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7712 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7713 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7715 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7717 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7718 goto nla_put_failure;
7720 genlmsg_end(msg, hdr);
7722 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7723 nl80211_mlme_mcgrp.id, gfp);
7727 genlmsg_cancel(msg, hdr);
7732 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7733 struct net_device *netdev, u16 reason,
7734 const u8 *ie, size_t ie_len, bool from_ap)
7736 struct sk_buff *msg;
7739 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7743 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7749 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7750 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7751 (from_ap && reason &&
7752 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7754 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7755 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7756 goto nla_put_failure;
7758 genlmsg_end(msg, hdr);
7760 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7761 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7765 genlmsg_cancel(msg, hdr);
7770 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7771 struct net_device *netdev, const u8 *bssid,
7774 struct sk_buff *msg;
7777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7781 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7787 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7788 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7789 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7790 goto nla_put_failure;
7792 genlmsg_end(msg, hdr);
7794 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7795 nl80211_mlme_mcgrp.id, gfp);
7799 genlmsg_cancel(msg, hdr);
7803 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7804 struct net_device *netdev,
7805 const u8 *macaddr, const u8* ie, u8 ie_len,
7808 struct sk_buff *msg;
7811 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7815 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7821 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7822 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7823 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7825 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7826 goto nla_put_failure;
7828 genlmsg_end(msg, hdr);
7830 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7831 nl80211_mlme_mcgrp.id, gfp);
7835 genlmsg_cancel(msg, hdr);
7839 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7840 struct net_device *netdev, const u8 *addr,
7841 enum nl80211_key_type key_type, int key_id,
7842 const u8 *tsc, gfp_t gfp)
7844 struct sk_buff *msg;
7847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7851 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7857 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7858 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7859 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7860 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7862 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7863 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7864 goto nla_put_failure;
7866 genlmsg_end(msg, hdr);
7868 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7869 nl80211_mlme_mcgrp.id, gfp);
7873 genlmsg_cancel(msg, hdr);
7877 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7878 struct ieee80211_channel *channel_before,
7879 struct ieee80211_channel *channel_after)
7881 struct sk_buff *msg;
7883 struct nlattr *nl_freq;
7885 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7889 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7896 * Since we are applying the beacon hint to a wiphy we know its
7897 * wiphy_idx is valid
7899 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7900 goto nla_put_failure;
7903 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7905 goto nla_put_failure;
7906 if (nl80211_msg_put_channel(msg, channel_before))
7907 goto nla_put_failure;
7908 nla_nest_end(msg, nl_freq);
7911 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7913 goto nla_put_failure;
7914 if (nl80211_msg_put_channel(msg, channel_after))
7915 goto nla_put_failure;
7916 nla_nest_end(msg, nl_freq);
7918 genlmsg_end(msg, hdr);
7921 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7928 genlmsg_cancel(msg, hdr);
7932 static void nl80211_send_remain_on_chan_event(
7933 int cmd, struct cfg80211_registered_device *rdev,
7934 struct net_device *netdev, u64 cookie,
7935 struct ieee80211_channel *chan,
7936 enum nl80211_channel_type channel_type,
7937 unsigned int duration, gfp_t gfp)
7939 struct sk_buff *msg;
7942 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7946 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7952 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7953 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7954 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7955 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7956 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7957 goto nla_put_failure;
7959 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7960 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7961 goto nla_put_failure;
7963 genlmsg_end(msg, hdr);
7965 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7966 nl80211_mlme_mcgrp.id, gfp);
7970 genlmsg_cancel(msg, hdr);
7974 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7975 struct net_device *netdev, u64 cookie,
7976 struct ieee80211_channel *chan,
7977 enum nl80211_channel_type channel_type,
7978 unsigned int duration, gfp_t gfp)
7980 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7981 rdev, netdev, cookie, chan,
7982 channel_type, duration, gfp);
7985 void nl80211_send_remain_on_channel_cancel(
7986 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7987 u64 cookie, struct ieee80211_channel *chan,
7988 enum nl80211_channel_type channel_type, gfp_t gfp)
7990 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7991 rdev, netdev, cookie, chan,
7992 channel_type, 0, gfp);
7995 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7996 struct net_device *dev, const u8 *mac_addr,
7997 struct station_info *sinfo, gfp_t gfp)
7999 struct sk_buff *msg;
8001 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8005 if (nl80211_send_station(msg, 0, 0, 0,
8006 rdev, dev, mac_addr, sinfo) < 0) {
8011 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8012 nl80211_mlme_mcgrp.id, gfp);
8015 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8016 struct net_device *dev, const u8 *mac_addr,
8019 struct sk_buff *msg;
8022 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8026 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8032 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8033 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8034 goto nla_put_failure;
8036 genlmsg_end(msg, hdr);
8038 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8039 nl80211_mlme_mcgrp.id, gfp);
8043 genlmsg_cancel(msg, hdr);
8047 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8048 const u8 *addr, gfp_t gfp)
8050 struct wireless_dev *wdev = dev->ieee80211_ptr;
8051 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8052 struct sk_buff *msg;
8055 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8060 msg = nlmsg_new(100, gfp);
8064 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8070 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8071 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8072 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8073 goto nla_put_failure;
8075 err = genlmsg_end(msg, hdr);
8081 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8085 genlmsg_cancel(msg, hdr);
8090 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8092 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8096 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8097 const u8 *addr, gfp_t gfp)
8099 return __nl80211_unexpected_frame(dev,
8100 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8104 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8105 struct net_device *netdev, u32 nlpid,
8106 int freq, int sig_dbm,
8107 const u8 *buf, size_t len, gfp_t gfp)
8109 struct sk_buff *msg;
8112 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8116 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8122 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8123 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8124 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8126 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8127 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8128 goto nla_put_failure;
8130 genlmsg_end(msg, hdr);
8132 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8135 genlmsg_cancel(msg, hdr);
8140 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8141 struct net_device *netdev, u64 cookie,
8142 const u8 *buf, size_t len, bool ack,
8145 struct sk_buff *msg;
8148 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8152 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8158 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8159 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8160 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8161 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8162 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8163 goto nla_put_failure;
8165 genlmsg_end(msg, hdr);
8167 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8171 genlmsg_cancel(msg, hdr);
8176 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8177 struct net_device *netdev,
8178 enum nl80211_cqm_rssi_threshold_event rssi_event,
8181 struct sk_buff *msg;
8182 struct nlattr *pinfoattr;
8185 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8189 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8195 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8196 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8197 goto nla_put_failure;
8199 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8201 goto nla_put_failure;
8203 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8205 goto nla_put_failure;
8207 nla_nest_end(msg, pinfoattr);
8209 genlmsg_end(msg, hdr);
8211 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8212 nl80211_mlme_mcgrp.id, gfp);
8216 genlmsg_cancel(msg, hdr);
8220 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8221 struct net_device *netdev, const u8 *bssid,
8222 const u8 *replay_ctr, gfp_t gfp)
8224 struct sk_buff *msg;
8225 struct nlattr *rekey_attr;
8228 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8232 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8238 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8239 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8240 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8241 goto nla_put_failure;
8243 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8245 goto nla_put_failure;
8247 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8248 NL80211_REPLAY_CTR_LEN, replay_ctr))
8249 goto nla_put_failure;
8251 nla_nest_end(msg, rekey_attr);
8253 genlmsg_end(msg, hdr);
8255 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8256 nl80211_mlme_mcgrp.id, gfp);
8260 genlmsg_cancel(msg, hdr);
8264 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8265 struct net_device *netdev, int index,
8266 const u8 *bssid, bool preauth, gfp_t gfp)
8268 struct sk_buff *msg;
8269 struct nlattr *attr;
8272 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8276 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8282 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8283 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8284 goto nla_put_failure;
8286 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8288 goto nla_put_failure;
8290 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8291 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8293 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8294 goto nla_put_failure;
8296 nla_nest_end(msg, attr);
8298 genlmsg_end(msg, hdr);
8300 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8301 nl80211_mlme_mcgrp.id, gfp);
8305 genlmsg_cancel(msg, hdr);
8309 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8310 struct net_device *netdev, int freq,
8311 enum nl80211_channel_type type, gfp_t gfp)
8313 struct sk_buff *msg;
8316 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8320 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8326 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8327 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8328 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8329 goto nla_put_failure;
8331 genlmsg_end(msg, hdr);
8333 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8334 nl80211_mlme_mcgrp.id, gfp);
8338 genlmsg_cancel(msg, hdr);
8343 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8344 struct net_device *netdev, const u8 *peer,
8345 u32 num_packets, gfp_t gfp)
8347 struct sk_buff *msg;
8348 struct nlattr *pinfoattr;
8351 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8355 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8361 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8362 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8363 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8364 goto nla_put_failure;
8366 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8368 goto nla_put_failure;
8370 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8371 goto nla_put_failure;
8373 nla_nest_end(msg, pinfoattr);
8375 genlmsg_end(msg, hdr);
8377 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8378 nl80211_mlme_mcgrp.id, gfp);
8382 genlmsg_cancel(msg, hdr);
8386 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8387 u64 cookie, bool acked, gfp_t gfp)
8389 struct wireless_dev *wdev = dev->ieee80211_ptr;
8390 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8391 struct sk_buff *msg;
8395 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8399 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8405 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8406 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8407 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8408 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8409 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8410 goto nla_put_failure;
8412 err = genlmsg_end(msg, hdr);
8418 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8419 nl80211_mlme_mcgrp.id, gfp);
8423 genlmsg_cancel(msg, hdr);
8426 EXPORT_SYMBOL(cfg80211_probe_status);
8428 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8429 const u8 *frame, size_t len,
8430 int freq, int sig_dbm, gfp_t gfp)
8432 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8433 struct sk_buff *msg;
8435 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8440 msg = nlmsg_new(len + 100, gfp);
8444 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8452 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8454 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8455 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8456 goto nla_put_failure;
8458 genlmsg_end(msg, hdr);
8460 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8464 genlmsg_cancel(msg, hdr);
8467 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8469 static int nl80211_netlink_notify(struct notifier_block * nb,
8470 unsigned long state,
8473 struct netlink_notify *notify = _notify;
8474 struct cfg80211_registered_device *rdev;
8475 struct wireless_dev *wdev;
8477 if (state != NETLINK_URELEASE)
8482 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8483 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8484 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8485 if (rdev->ap_beacons_nlpid == notify->pid)
8486 rdev->ap_beacons_nlpid = 0;
8494 static struct notifier_block nl80211_netlink_notifier = {
8495 .notifier_call = nl80211_netlink_notify,
8498 /* initialisation/exit functions */
8500 int nl80211_init(void)
8504 err = genl_register_family_with_ops(&nl80211_fam,
8505 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8509 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8513 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8517 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8521 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8525 #ifdef CONFIG_NL80211_TESTMODE
8526 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8531 err = netlink_register_notifier(&nl80211_netlink_notifier);
8537 genl_unregister_family(&nl80211_fam);
8541 void nl80211_exit(void)
8543 netlink_unregister_notifier(&nl80211_netlink_notifier);
8544 genl_unregister_family(&nl80211_fam);