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);
1115 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1116 struct nlattr *nl_wowlan;
1118 nl_wowlan = nla_nest_start(msg,
1119 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1121 goto nla_put_failure;
1123 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1124 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1125 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1126 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1127 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1128 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1129 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1130 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1131 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1132 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1133 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1134 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1135 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1136 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1137 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1138 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1139 goto nla_put_failure;
1140 if (dev->wiphy.wowlan.n_patterns) {
1141 struct nl80211_wowlan_pattern_support pat = {
1142 .max_patterns = dev->wiphy.wowlan.n_patterns,
1144 dev->wiphy.wowlan.pattern_min_len,
1146 dev->wiphy.wowlan.pattern_max_len,
1148 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1150 goto nla_put_failure;
1153 nla_nest_end(msg, nl_wowlan);
1156 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1157 dev->wiphy.software_iftypes))
1158 goto nla_put_failure;
1160 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1161 goto nla_put_failure;
1163 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1164 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1165 dev->wiphy.ap_sme_capa))
1166 goto nla_put_failure;
1168 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1169 dev->wiphy.features))
1170 goto nla_put_failure;
1172 if (dev->wiphy.ht_capa_mod_mask &&
1173 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1174 sizeof(*dev->wiphy.ht_capa_mod_mask),
1175 dev->wiphy.ht_capa_mod_mask))
1176 goto nla_put_failure;
1178 return genlmsg_end(msg, hdr);
1181 genlmsg_cancel(msg, hdr);
1185 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1188 int start = cb->args[0];
1189 struct cfg80211_registered_device *dev;
1191 mutex_lock(&cfg80211_mutex);
1192 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1193 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1197 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1198 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1204 mutex_unlock(&cfg80211_mutex);
1211 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1213 struct sk_buff *msg;
1214 struct cfg80211_registered_device *dev = info->user_ptr[0];
1216 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1220 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1225 return genlmsg_reply(msg, info);
1228 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1229 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1230 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1231 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1232 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1233 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1236 static int parse_txq_params(struct nlattr *tb[],
1237 struct ieee80211_txq_params *txq_params)
1239 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1240 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1241 !tb[NL80211_TXQ_ATTR_AIFS])
1244 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1245 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1246 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1247 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1248 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1250 if (txq_params->ac >= NL80211_NUM_ACS)
1256 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1259 * You can only set the channel explicitly for WDS interfaces,
1260 * all others have their channel managed via their respective
1261 * "establish a connection" command (connect, join, ...)
1263 * For AP/GO and mesh mode, the channel can be set with the
1264 * channel userspace API, but is only stored and passed to the
1265 * low-level driver when the AP starts or the mesh is joined.
1266 * This is for backward compatibility, userspace can also give
1267 * the channel in the start-ap or join-mesh commands instead.
1269 * Monitors are special as they are normally slaved to
1270 * whatever else is going on, so they have their own special
1271 * operation to set the monitor channel if possible.
1274 wdev->iftype == NL80211_IFTYPE_AP ||
1275 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1276 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1277 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1280 static bool nl80211_valid_channel_type(struct genl_info *info,
1281 enum nl80211_channel_type *channel_type)
1283 enum nl80211_channel_type tmp;
1285 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1288 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1289 if (tmp != NL80211_CHAN_NO_HT &&
1290 tmp != NL80211_CHAN_HT20 &&
1291 tmp != NL80211_CHAN_HT40PLUS &&
1292 tmp != NL80211_CHAN_HT40MINUS)
1296 *channel_type = tmp;
1301 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1302 struct wireless_dev *wdev,
1303 struct genl_info *info)
1305 struct ieee80211_channel *channel;
1306 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1309 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1312 iftype = wdev->iftype;
1314 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1317 if (!nl80211_can_set_dev_channel(wdev))
1320 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1321 !nl80211_valid_channel_type(info, &channel_type))
1324 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1326 mutex_lock(&rdev->devlist_mtx);
1328 case NL80211_IFTYPE_AP:
1329 case NL80211_IFTYPE_P2P_GO:
1330 if (wdev->beacon_interval) {
1334 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1335 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1341 wdev->preset_chan = channel;
1342 wdev->preset_chantype = channel_type;
1345 case NL80211_IFTYPE_MESH_POINT:
1346 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1348 case NL80211_IFTYPE_MONITOR:
1349 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1354 mutex_unlock(&rdev->devlist_mtx);
1359 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1362 struct net_device *netdev = info->user_ptr[1];
1364 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1367 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1370 struct net_device *dev = info->user_ptr[1];
1371 struct wireless_dev *wdev = dev->ieee80211_ptr;
1374 if (!info->attrs[NL80211_ATTR_MAC])
1377 if (netif_running(dev))
1380 if (!rdev->ops->set_wds_peer)
1383 if (wdev->iftype != NL80211_IFTYPE_WDS)
1386 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1387 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1391 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1393 struct cfg80211_registered_device *rdev;
1394 struct net_device *netdev = NULL;
1395 struct wireless_dev *wdev;
1396 int result = 0, rem_txq_params = 0;
1397 struct nlattr *nl_txq_params;
1399 u8 retry_short = 0, retry_long = 0;
1400 u32 frag_threshold = 0, rts_threshold = 0;
1401 u8 coverage_class = 0;
1404 * Try to find the wiphy and netdev. Normally this
1405 * function shouldn't need the netdev, but this is
1406 * done for backward compatibility -- previously
1407 * setting the channel was done per wiphy, but now
1408 * it is per netdev. Previous userland like hostapd
1409 * also passed a netdev to set_wiphy, so that it is
1410 * possible to let that go to the right netdev!
1412 mutex_lock(&cfg80211_mutex);
1414 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1415 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1417 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1418 if (netdev && netdev->ieee80211_ptr) {
1419 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1420 mutex_lock(&rdev->mtx);
1426 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1429 mutex_unlock(&cfg80211_mutex);
1430 return PTR_ERR(rdev);
1436 mutex_lock(&rdev->mtx);
1437 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1438 wdev = netdev->ieee80211_ptr;
1443 * end workaround code, by now the rdev is available
1444 * and locked, and wdev may or may not be NULL.
1447 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1448 result = cfg80211_dev_rename(
1449 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1451 mutex_unlock(&cfg80211_mutex);
1456 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1457 struct ieee80211_txq_params txq_params;
1458 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1460 if (!rdev->ops->set_txq_params) {
1461 result = -EOPNOTSUPP;
1470 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1471 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1476 if (!netif_running(netdev)) {
1481 nla_for_each_nested(nl_txq_params,
1482 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1484 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1485 nla_data(nl_txq_params),
1486 nla_len(nl_txq_params),
1488 result = parse_txq_params(tb, &txq_params);
1492 result = rdev->ops->set_txq_params(&rdev->wiphy,
1500 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1501 result = __nl80211_set_channel(rdev, wdev, info);
1506 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1507 enum nl80211_tx_power_setting type;
1510 if (!rdev->ops->set_tx_power) {
1511 result = -EOPNOTSUPP;
1515 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1516 type = nla_get_u32(info->attrs[idx]);
1518 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1519 (type != NL80211_TX_POWER_AUTOMATIC)) {
1524 if (type != NL80211_TX_POWER_AUTOMATIC) {
1525 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1526 mbm = nla_get_u32(info->attrs[idx]);
1529 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1534 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1535 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1537 if ((!rdev->wiphy.available_antennas_tx &&
1538 !rdev->wiphy.available_antennas_rx) ||
1539 !rdev->ops->set_antenna) {
1540 result = -EOPNOTSUPP;
1544 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1545 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1547 /* reject antenna configurations which don't match the
1548 * available antenna masks, except for the "all" mask */
1549 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1550 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1555 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1556 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1558 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1565 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1566 retry_short = nla_get_u8(
1567 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1568 if (retry_short == 0) {
1572 changed |= WIPHY_PARAM_RETRY_SHORT;
1575 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1576 retry_long = nla_get_u8(
1577 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1578 if (retry_long == 0) {
1582 changed |= WIPHY_PARAM_RETRY_LONG;
1585 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1586 frag_threshold = nla_get_u32(
1587 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1588 if (frag_threshold < 256) {
1592 if (frag_threshold != (u32) -1) {
1594 * Fragments (apart from the last one) are required to
1595 * have even length. Make the fragmentation code
1596 * simpler by stripping LSB should someone try to use
1597 * odd threshold value.
1599 frag_threshold &= ~0x1;
1601 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1604 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1605 rts_threshold = nla_get_u32(
1606 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1607 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1610 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1611 coverage_class = nla_get_u8(
1612 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1613 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1617 u8 old_retry_short, old_retry_long;
1618 u32 old_frag_threshold, old_rts_threshold;
1619 u8 old_coverage_class;
1621 if (!rdev->ops->set_wiphy_params) {
1622 result = -EOPNOTSUPP;
1626 old_retry_short = rdev->wiphy.retry_short;
1627 old_retry_long = rdev->wiphy.retry_long;
1628 old_frag_threshold = rdev->wiphy.frag_threshold;
1629 old_rts_threshold = rdev->wiphy.rts_threshold;
1630 old_coverage_class = rdev->wiphy.coverage_class;
1632 if (changed & WIPHY_PARAM_RETRY_SHORT)
1633 rdev->wiphy.retry_short = retry_short;
1634 if (changed & WIPHY_PARAM_RETRY_LONG)
1635 rdev->wiphy.retry_long = retry_long;
1636 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1637 rdev->wiphy.frag_threshold = frag_threshold;
1638 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1639 rdev->wiphy.rts_threshold = rts_threshold;
1640 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1641 rdev->wiphy.coverage_class = coverage_class;
1643 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1645 rdev->wiphy.retry_short = old_retry_short;
1646 rdev->wiphy.retry_long = old_retry_long;
1647 rdev->wiphy.frag_threshold = old_frag_threshold;
1648 rdev->wiphy.rts_threshold = old_rts_threshold;
1649 rdev->wiphy.coverage_class = old_coverage_class;
1654 mutex_unlock(&rdev->mtx);
1661 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1662 struct cfg80211_registered_device *rdev,
1663 struct net_device *dev)
1667 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1671 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1672 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1673 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1674 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1675 dev->ieee80211_ptr->iftype) ||
1676 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1677 rdev->devlist_generation ^
1678 (cfg80211_rdev_list_generation << 2)))
1679 goto nla_put_failure;
1681 if (rdev->ops->get_channel) {
1682 struct ieee80211_channel *chan;
1683 enum nl80211_channel_type channel_type;
1685 chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type);
1687 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1688 chan->center_freq) ||
1689 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1691 goto nla_put_failure;
1694 return genlmsg_end(msg, hdr);
1697 genlmsg_cancel(msg, hdr);
1701 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1705 int wp_start = cb->args[0];
1706 int if_start = cb->args[1];
1707 struct cfg80211_registered_device *rdev;
1708 struct wireless_dev *wdev;
1710 mutex_lock(&cfg80211_mutex);
1711 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1712 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1714 if (wp_idx < wp_start) {
1720 mutex_lock(&rdev->devlist_mtx);
1721 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1722 if (if_idx < if_start) {
1726 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1727 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1728 rdev, wdev->netdev) < 0) {
1729 mutex_unlock(&rdev->devlist_mtx);
1734 mutex_unlock(&rdev->devlist_mtx);
1739 mutex_unlock(&cfg80211_mutex);
1741 cb->args[0] = wp_idx;
1742 cb->args[1] = if_idx;
1747 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1749 struct sk_buff *msg;
1750 struct cfg80211_registered_device *dev = info->user_ptr[0];
1751 struct net_device *netdev = info->user_ptr[1];
1753 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1757 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1763 return genlmsg_reply(msg, info);
1766 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1767 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1768 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1769 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1770 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1771 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1774 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1776 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1784 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1785 nla, mntr_flags_policy))
1788 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1790 *mntrflags |= (1<<flag);
1795 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1796 struct net_device *netdev, u8 use_4addr,
1797 enum nl80211_iftype iftype)
1800 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1806 case NL80211_IFTYPE_AP_VLAN:
1807 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1810 case NL80211_IFTYPE_STATION:
1811 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1821 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1824 struct vif_params params;
1826 enum nl80211_iftype otype, ntype;
1827 struct net_device *dev = info->user_ptr[1];
1828 u32 _flags, *flags = NULL;
1829 bool change = false;
1831 memset(¶ms, 0, sizeof(params));
1833 otype = ntype = dev->ieee80211_ptr->iftype;
1835 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1836 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1839 if (ntype > NL80211_IFTYPE_MAX)
1843 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1844 struct wireless_dev *wdev = dev->ieee80211_ptr;
1846 if (ntype != NL80211_IFTYPE_MESH_POINT)
1848 if (netif_running(dev))
1852 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1853 IEEE80211_MAX_MESH_ID_LEN);
1854 wdev->mesh_id_up_len =
1855 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1856 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1857 wdev->mesh_id_up_len);
1861 if (info->attrs[NL80211_ATTR_4ADDR]) {
1862 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1864 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1868 params.use_4addr = -1;
1871 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1872 if (ntype != NL80211_IFTYPE_MONITOR)
1874 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1884 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1888 if (!err && params.use_4addr != -1)
1889 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1894 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1897 struct vif_params params;
1898 struct net_device *dev;
1900 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1903 memset(¶ms, 0, sizeof(params));
1905 if (!info->attrs[NL80211_ATTR_IFNAME])
1908 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1909 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1910 if (type > NL80211_IFTYPE_MAX)
1914 if (!rdev->ops->add_virtual_intf ||
1915 !(rdev->wiphy.interface_modes & (1 << type)))
1918 if (info->attrs[NL80211_ATTR_4ADDR]) {
1919 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1920 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1925 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1926 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1928 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1929 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1930 type, err ? NULL : &flags, ¶ms);
1932 return PTR_ERR(dev);
1934 if (type == NL80211_IFTYPE_MESH_POINT &&
1935 info->attrs[NL80211_ATTR_MESH_ID]) {
1936 struct wireless_dev *wdev = dev->ieee80211_ptr;
1939 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1940 IEEE80211_MAX_MESH_ID_LEN);
1941 wdev->mesh_id_up_len =
1942 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1943 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1944 wdev->mesh_id_up_len);
1951 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1954 struct net_device *dev = info->user_ptr[1];
1956 if (!rdev->ops->del_virtual_intf)
1959 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1962 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1965 struct net_device *dev = info->user_ptr[1];
1968 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1971 if (!rdev->ops->set_noack_map)
1974 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1976 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1979 struct get_key_cookie {
1980 struct sk_buff *msg;
1985 static void get_key_callback(void *c, struct key_params *params)
1988 struct get_key_cookie *cookie = c;
1991 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
1992 params->key_len, params->key)) ||
1994 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
1995 params->seq_len, params->seq)) ||
1997 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1999 goto nla_put_failure;
2001 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2003 goto nla_put_failure;
2006 nla_put(cookie->msg, NL80211_KEY_DATA,
2007 params->key_len, params->key)) ||
2009 nla_put(cookie->msg, NL80211_KEY_SEQ,
2010 params->seq_len, params->seq)) ||
2012 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2014 goto nla_put_failure;
2016 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2017 goto nla_put_failure;
2019 nla_nest_end(cookie->msg, key);
2026 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2030 struct net_device *dev = info->user_ptr[1];
2032 const u8 *mac_addr = NULL;
2034 struct get_key_cookie cookie = {
2038 struct sk_buff *msg;
2040 if (info->attrs[NL80211_ATTR_KEY_IDX])
2041 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2046 if (info->attrs[NL80211_ATTR_MAC])
2047 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2049 pairwise = !!mac_addr;
2050 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2051 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2052 if (kt >= NUM_NL80211_KEYTYPES)
2054 if (kt != NL80211_KEYTYPE_GROUP &&
2055 kt != NL80211_KEYTYPE_PAIRWISE)
2057 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2060 if (!rdev->ops->get_key)
2063 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2067 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2068 NL80211_CMD_NEW_KEY);
2070 return PTR_ERR(hdr);
2073 cookie.idx = key_idx;
2075 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2076 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2077 goto nla_put_failure;
2079 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2080 goto nla_put_failure;
2082 if (pairwise && mac_addr &&
2083 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2086 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2087 mac_addr, &cookie, get_key_callback);
2093 goto nla_put_failure;
2095 genlmsg_end(msg, hdr);
2096 return genlmsg_reply(msg, info);
2105 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2107 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2108 struct key_parse key;
2110 struct net_device *dev = info->user_ptr[1];
2112 err = nl80211_parse_key(info, &key);
2119 /* only support setting default key */
2120 if (!key.def && !key.defmgmt)
2123 wdev_lock(dev->ieee80211_ptr);
2126 if (!rdev->ops->set_default_key) {
2131 err = nl80211_key_allowed(dev->ieee80211_ptr);
2135 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2136 key.def_uni, key.def_multi);
2141 #ifdef CONFIG_CFG80211_WEXT
2142 dev->ieee80211_ptr->wext.default_key = key.idx;
2145 if (key.def_uni || !key.def_multi) {
2150 if (!rdev->ops->set_default_mgmt_key) {
2155 err = nl80211_key_allowed(dev->ieee80211_ptr);
2159 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2164 #ifdef CONFIG_CFG80211_WEXT
2165 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2170 wdev_unlock(dev->ieee80211_ptr);
2175 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2179 struct net_device *dev = info->user_ptr[1];
2180 struct key_parse key;
2181 const u8 *mac_addr = NULL;
2183 err = nl80211_parse_key(info, &key);
2190 if (info->attrs[NL80211_ATTR_MAC])
2191 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2193 if (key.type == -1) {
2195 key.type = NL80211_KEYTYPE_PAIRWISE;
2197 key.type = NL80211_KEYTYPE_GROUP;
2201 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2202 key.type != NL80211_KEYTYPE_GROUP)
2205 if (!rdev->ops->add_key)
2208 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2209 key.type == NL80211_KEYTYPE_PAIRWISE,
2213 wdev_lock(dev->ieee80211_ptr);
2214 err = nl80211_key_allowed(dev->ieee80211_ptr);
2216 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2217 key.type == NL80211_KEYTYPE_PAIRWISE,
2219 wdev_unlock(dev->ieee80211_ptr);
2224 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2228 struct net_device *dev = info->user_ptr[1];
2229 u8 *mac_addr = NULL;
2230 struct key_parse key;
2232 err = nl80211_parse_key(info, &key);
2236 if (info->attrs[NL80211_ATTR_MAC])
2237 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2239 if (key.type == -1) {
2241 key.type = NL80211_KEYTYPE_PAIRWISE;
2243 key.type = NL80211_KEYTYPE_GROUP;
2247 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2248 key.type != NL80211_KEYTYPE_GROUP)
2251 if (!rdev->ops->del_key)
2254 wdev_lock(dev->ieee80211_ptr);
2255 err = nl80211_key_allowed(dev->ieee80211_ptr);
2257 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2258 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2262 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2263 key.type == NL80211_KEYTYPE_PAIRWISE,
2266 #ifdef CONFIG_CFG80211_WEXT
2268 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2269 dev->ieee80211_ptr->wext.default_key = -1;
2270 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2271 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2274 wdev_unlock(dev->ieee80211_ptr);
2279 static int nl80211_parse_beacon(struct genl_info *info,
2280 struct cfg80211_beacon_data *bcn)
2282 bool haveinfo = false;
2284 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2285 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2286 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2287 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2290 memset(bcn, 0, sizeof(*bcn));
2292 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2293 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2294 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2300 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2301 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2303 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2310 if (info->attrs[NL80211_ATTR_IE]) {
2311 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2312 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2315 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2316 bcn->proberesp_ies =
2317 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2318 bcn->proberesp_ies_len =
2319 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2322 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2323 bcn->assocresp_ies =
2324 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2325 bcn->assocresp_ies_len =
2326 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2329 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2331 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2332 bcn->probe_resp_len =
2333 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2339 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2340 struct cfg80211_ap_settings *params)
2342 struct wireless_dev *wdev;
2345 mutex_lock(&rdev->devlist_mtx);
2347 list_for_each_entry(wdev, &rdev->netdev_list, list) {
2348 if (wdev->iftype != NL80211_IFTYPE_AP &&
2349 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2352 if (!wdev->preset_chan)
2355 params->channel = wdev->preset_chan;
2356 params->channel_type = wdev->preset_chantype;
2361 mutex_unlock(&rdev->devlist_mtx);
2366 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2368 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2369 struct net_device *dev = info->user_ptr[1];
2370 struct wireless_dev *wdev = dev->ieee80211_ptr;
2371 struct cfg80211_ap_settings params;
2374 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2375 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2378 if (!rdev->ops->start_ap)
2381 if (wdev->beacon_interval)
2384 memset(¶ms, 0, sizeof(params));
2386 /* these are required for START_AP */
2387 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2388 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2389 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2392 err = nl80211_parse_beacon(info, ¶ms.beacon);
2396 params.beacon_interval =
2397 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2398 params.dtim_period =
2399 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2401 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2406 * In theory, some of these attributes should be required here
2407 * but since they were not used when the command was originally
2408 * added, keep them optional for old user space programs to let
2409 * them continue to work with drivers that do not need the
2410 * additional information -- drivers must check!
2412 if (info->attrs[NL80211_ATTR_SSID]) {
2413 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2415 nla_len(info->attrs[NL80211_ATTR_SSID]);
2416 if (params.ssid_len == 0 ||
2417 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2421 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2422 params.hidden_ssid = nla_get_u32(
2423 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2424 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2425 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2426 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2430 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2432 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2433 params.auth_type = nla_get_u32(
2434 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2435 if (!nl80211_valid_auth_type(params.auth_type))
2438 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2440 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2441 NL80211_MAX_NR_CIPHER_SUITES);
2445 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2446 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2448 params.inactivity_timeout = nla_get_u16(
2449 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2452 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2453 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2455 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2456 !nl80211_valid_channel_type(info, &channel_type))
2459 params.channel = rdev_freq_to_chan(rdev,
2460 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2462 if (!params.channel)
2464 params.channel_type = channel_type;
2465 } else if (wdev->preset_chan) {
2466 params.channel = wdev->preset_chan;
2467 params.channel_type = wdev->preset_chantype;
2468 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2471 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2472 params.channel_type))
2475 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2477 wdev->preset_chan = params.channel;
2478 wdev->preset_chantype = params.channel_type;
2479 wdev->beacon_interval = params.beacon_interval;
2484 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2487 struct net_device *dev = info->user_ptr[1];
2488 struct wireless_dev *wdev = dev->ieee80211_ptr;
2489 struct cfg80211_beacon_data params;
2492 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2493 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2496 if (!rdev->ops->change_beacon)
2499 if (!wdev->beacon_interval)
2502 err = nl80211_parse_beacon(info, ¶ms);
2506 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2509 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2512 struct net_device *dev = info->user_ptr[1];
2513 struct wireless_dev *wdev = dev->ieee80211_ptr;
2516 if (!rdev->ops->stop_ap)
2519 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2520 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2523 if (!wdev->beacon_interval)
2526 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
2528 wdev->beacon_interval = 0;
2532 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2533 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2534 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2535 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2536 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2537 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2538 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2541 static int parse_station_flags(struct genl_info *info,
2542 enum nl80211_iftype iftype,
2543 struct station_parameters *params)
2545 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2550 * Try parsing the new attribute first so userspace
2551 * can specify both for older kernels.
2553 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2555 struct nl80211_sta_flag_update *sta_flags;
2557 sta_flags = nla_data(nla);
2558 params->sta_flags_mask = sta_flags->mask;
2559 params->sta_flags_set = sta_flags->set;
2560 if ((params->sta_flags_mask |
2561 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2566 /* if present, parse the old attribute */
2568 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2572 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2573 nla, sta_flags_policy))
2577 * Only allow certain flags for interface types so that
2578 * other attributes are silently ignored. Remember that
2579 * this is backward compatibility code with old userspace
2580 * and shouldn't be hit in other cases anyway.
2583 case NL80211_IFTYPE_AP:
2584 case NL80211_IFTYPE_AP_VLAN:
2585 case NL80211_IFTYPE_P2P_GO:
2586 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2587 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2588 BIT(NL80211_STA_FLAG_WME) |
2589 BIT(NL80211_STA_FLAG_MFP);
2591 case NL80211_IFTYPE_P2P_CLIENT:
2592 case NL80211_IFTYPE_STATION:
2593 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2594 BIT(NL80211_STA_FLAG_TDLS_PEER);
2596 case NL80211_IFTYPE_MESH_POINT:
2597 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2598 BIT(NL80211_STA_FLAG_MFP) |
2599 BIT(NL80211_STA_FLAG_AUTHORIZED);
2604 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2606 params->sta_flags_set |= (1<<flag);
2608 /* no longer support new API additions in old API */
2609 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2617 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2620 struct nlattr *rate;
2623 rate = nla_nest_start(msg, attr);
2625 goto nla_put_failure;
2627 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2628 bitrate = cfg80211_calculate_bitrate(info);
2630 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2631 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2632 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2633 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2634 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2635 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2636 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2637 goto nla_put_failure;
2639 nla_nest_end(msg, rate);
2646 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2648 struct cfg80211_registered_device *rdev,
2649 struct net_device *dev,
2650 const u8 *mac_addr, struct station_info *sinfo)
2653 struct nlattr *sinfoattr, *bss_param;
2655 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2659 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2660 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2661 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2662 goto nla_put_failure;
2664 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2666 goto nla_put_failure;
2667 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2668 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2669 sinfo->connected_time))
2670 goto nla_put_failure;
2671 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2672 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2673 sinfo->inactive_time))
2674 goto nla_put_failure;
2675 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2676 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2678 goto nla_put_failure;
2679 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2680 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2682 goto nla_put_failure;
2683 if ((sinfo->filled & STATION_INFO_LLID) &&
2684 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2685 goto nla_put_failure;
2686 if ((sinfo->filled & STATION_INFO_PLID) &&
2687 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2688 goto nla_put_failure;
2689 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2690 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2691 sinfo->plink_state))
2692 goto nla_put_failure;
2693 switch (rdev->wiphy.signal_type) {
2694 case CFG80211_SIGNAL_TYPE_MBM:
2695 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2696 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2698 goto nla_put_failure;
2699 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2700 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2702 goto nla_put_failure;
2707 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2708 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2709 NL80211_STA_INFO_TX_BITRATE))
2710 goto nla_put_failure;
2712 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2713 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2714 NL80211_STA_INFO_RX_BITRATE))
2715 goto nla_put_failure;
2717 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2718 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2720 goto nla_put_failure;
2721 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2722 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2724 goto nla_put_failure;
2725 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2726 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2728 goto nla_put_failure;
2729 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2730 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2732 goto nla_put_failure;
2733 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2734 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2735 sinfo->beacon_loss_count))
2736 goto nla_put_failure;
2737 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2738 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2740 goto nla_put_failure;
2742 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2743 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2744 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2745 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2746 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2747 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2748 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2749 sinfo->bss_param.dtim_period) ||
2750 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2751 sinfo->bss_param.beacon_interval))
2752 goto nla_put_failure;
2754 nla_nest_end(msg, bss_param);
2756 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2757 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2758 sizeof(struct nl80211_sta_flag_update),
2760 goto nla_put_failure;
2761 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2762 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2764 goto nla_put_failure;
2765 nla_nest_end(msg, sinfoattr);
2767 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2768 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2769 sinfo->assoc_req_ies))
2770 goto nla_put_failure;
2772 return genlmsg_end(msg, hdr);
2775 genlmsg_cancel(msg, hdr);
2779 static int nl80211_dump_station(struct sk_buff *skb,
2780 struct netlink_callback *cb)
2782 struct station_info sinfo;
2783 struct cfg80211_registered_device *dev;
2784 struct net_device *netdev;
2785 u8 mac_addr[ETH_ALEN];
2786 int sta_idx = cb->args[1];
2789 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2793 if (!dev->ops->dump_station) {
2799 memset(&sinfo, 0, sizeof(sinfo));
2800 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2807 if (nl80211_send_station(skb,
2808 NETLINK_CB(cb->skb).pid,
2809 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2810 dev, netdev, mac_addr,
2819 cb->args[1] = sta_idx;
2822 nl80211_finish_netdev_dump(dev);
2827 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2830 struct net_device *dev = info->user_ptr[1];
2831 struct station_info sinfo;
2832 struct sk_buff *msg;
2833 u8 *mac_addr = NULL;
2836 memset(&sinfo, 0, sizeof(sinfo));
2838 if (!info->attrs[NL80211_ATTR_MAC])
2841 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2843 if (!rdev->ops->get_station)
2846 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2854 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2855 rdev, dev, mac_addr, &sinfo) < 0) {
2860 return genlmsg_reply(msg, info);
2864 * Get vlan interface making sure it is running and on the right wiphy.
2866 static struct net_device *get_vlan(struct genl_info *info,
2867 struct cfg80211_registered_device *rdev)
2869 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2870 struct net_device *v;
2876 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2878 return ERR_PTR(-ENODEV);
2880 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2885 if (!netif_running(v)) {
2893 return ERR_PTR(ret);
2896 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2900 struct net_device *dev = info->user_ptr[1];
2901 struct station_parameters params;
2902 u8 *mac_addr = NULL;
2904 memset(¶ms, 0, sizeof(params));
2906 params.listen_interval = -1;
2907 params.plink_state = -1;
2909 if (info->attrs[NL80211_ATTR_STA_AID])
2912 if (!info->attrs[NL80211_ATTR_MAC])
2915 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2917 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2918 params.supported_rates =
2919 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2920 params.supported_rates_len =
2921 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2924 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2925 params.listen_interval =
2926 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2928 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2930 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2932 if (!rdev->ops->change_station)
2935 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2938 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2939 params.plink_action =
2940 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2942 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2943 params.plink_state =
2944 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2946 switch (dev->ieee80211_ptr->iftype) {
2947 case NL80211_IFTYPE_AP:
2948 case NL80211_IFTYPE_AP_VLAN:
2949 case NL80211_IFTYPE_P2P_GO:
2950 /* disallow mesh-specific things */
2951 if (params.plink_action)
2954 /* TDLS can't be set, ... */
2955 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2958 * ... but don't bother the driver with it. This works around
2959 * a hostapd/wpa_supplicant issue -- it always includes the
2960 * TLDS_PEER flag in the mask even for AP mode.
2962 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2964 /* accept only the listed bits */
2965 if (params.sta_flags_mask &
2966 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2967 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2968 BIT(NL80211_STA_FLAG_WME) |
2969 BIT(NL80211_STA_FLAG_MFP)))
2972 /* must be last in here for error handling */
2973 params.vlan = get_vlan(info, rdev);
2974 if (IS_ERR(params.vlan))
2975 return PTR_ERR(params.vlan);
2977 case NL80211_IFTYPE_P2P_CLIENT:
2978 case NL80211_IFTYPE_STATION:
2980 * Don't allow userspace to change the TDLS_PEER flag,
2981 * but silently ignore attempts to change it since we
2982 * don't have state here to verify that it doesn't try
2983 * to change the flag.
2985 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2987 case NL80211_IFTYPE_ADHOC:
2988 /* disallow things sta doesn't support */
2989 if (params.plink_action)
2993 if (params.listen_interval >= 0)
2995 /* reject any changes other than AUTHORIZED */
2996 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2999 case NL80211_IFTYPE_MESH_POINT:
3000 /* disallow things mesh doesn't support */
3005 if (params.listen_interval >= 0)
3008 * No special handling for TDLS here -- the userspace
3009 * mesh code doesn't have this bug.
3011 if (params.sta_flags_mask &
3012 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3013 BIT(NL80211_STA_FLAG_MFP) |
3014 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3021 /* be aware of params.vlan when changing code here */
3023 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3026 dev_put(params.vlan);
3031 static struct nla_policy
3032 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3033 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3034 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3037 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3041 struct net_device *dev = info->user_ptr[1];
3042 struct station_parameters params;
3043 u8 *mac_addr = NULL;
3045 memset(¶ms, 0, sizeof(params));
3047 if (!info->attrs[NL80211_ATTR_MAC])
3050 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3053 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3056 if (!info->attrs[NL80211_ATTR_STA_AID])
3059 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3060 params.supported_rates =
3061 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3062 params.supported_rates_len =
3063 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3064 params.listen_interval =
3065 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3067 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3068 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3071 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3073 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3075 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3076 params.plink_action =
3077 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3079 if (!rdev->ops->add_station)
3082 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3085 switch (dev->ieee80211_ptr->iftype) {
3086 case NL80211_IFTYPE_AP:
3087 case NL80211_IFTYPE_AP_VLAN:
3088 case NL80211_IFTYPE_P2P_GO:
3089 /* parse WME attributes if sta is WME capable */
3090 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3091 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3092 info->attrs[NL80211_ATTR_STA_WME]) {
3093 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3096 nla = info->attrs[NL80211_ATTR_STA_WME];
3097 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3098 nl80211_sta_wme_policy);
3102 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3103 params.uapsd_queues =
3104 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3105 if (params.uapsd_queues &
3106 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3109 if (tb[NL80211_STA_WME_MAX_SP])
3111 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3114 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3117 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3119 /* TDLS peers cannot be added */
3120 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3122 /* but don't bother the driver with it */
3123 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3125 /* must be last in here for error handling */
3126 params.vlan = get_vlan(info, rdev);
3127 if (IS_ERR(params.vlan))
3128 return PTR_ERR(params.vlan);
3130 case NL80211_IFTYPE_MESH_POINT:
3131 /* TDLS peers cannot be added */
3132 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3135 case NL80211_IFTYPE_STATION:
3136 /* Only TDLS peers can be added */
3137 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3139 /* Can only add if TDLS ... */
3140 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3142 /* ... with external setup is supported */
3143 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3150 /* be aware of params.vlan when changing code here */
3152 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3155 dev_put(params.vlan);
3159 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3162 struct net_device *dev = info->user_ptr[1];
3163 u8 *mac_addr = NULL;
3165 if (info->attrs[NL80211_ATTR_MAC])
3166 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3168 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3169 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3170 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3171 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3174 if (!rdev->ops->del_station)
3177 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3180 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3181 int flags, struct net_device *dev,
3182 u8 *dst, u8 *next_hop,
3183 struct mpath_info *pinfo)
3186 struct nlattr *pinfoattr;
3188 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3192 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3193 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3194 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3195 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3196 goto nla_put_failure;
3198 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3200 goto nla_put_failure;
3201 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3202 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3204 goto nla_put_failure;
3205 if (((pinfo->filled & MPATH_INFO_SN) &&
3206 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3207 ((pinfo->filled & MPATH_INFO_METRIC) &&
3208 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3210 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3211 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3213 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3214 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3216 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3217 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3218 pinfo->discovery_timeout)) ||
3219 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3220 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3221 pinfo->discovery_retries)))
3222 goto nla_put_failure;
3224 nla_nest_end(msg, pinfoattr);
3226 return genlmsg_end(msg, hdr);
3229 genlmsg_cancel(msg, hdr);
3233 static int nl80211_dump_mpath(struct sk_buff *skb,
3234 struct netlink_callback *cb)
3236 struct mpath_info pinfo;
3237 struct cfg80211_registered_device *dev;
3238 struct net_device *netdev;
3240 u8 next_hop[ETH_ALEN];
3241 int path_idx = cb->args[1];
3244 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3248 if (!dev->ops->dump_mpath) {
3253 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3259 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3260 dst, next_hop, &pinfo);
3266 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3267 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3268 netdev, dst, next_hop,
3277 cb->args[1] = path_idx;
3280 nl80211_finish_netdev_dump(dev);
3284 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3286 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3288 struct net_device *dev = info->user_ptr[1];
3289 struct mpath_info pinfo;
3290 struct sk_buff *msg;
3292 u8 next_hop[ETH_ALEN];
3294 memset(&pinfo, 0, sizeof(pinfo));
3296 if (!info->attrs[NL80211_ATTR_MAC])
3299 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3301 if (!rdev->ops->get_mpath)
3304 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3307 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3315 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3316 dev, dst, next_hop, &pinfo) < 0) {
3321 return genlmsg_reply(msg, info);
3324 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3327 struct net_device *dev = info->user_ptr[1];
3329 u8 *next_hop = NULL;
3331 if (!info->attrs[NL80211_ATTR_MAC])
3334 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3337 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3338 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3340 if (!rdev->ops->change_mpath)
3343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3346 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3349 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3352 struct net_device *dev = info->user_ptr[1];
3354 u8 *next_hop = NULL;
3356 if (!info->attrs[NL80211_ATTR_MAC])
3359 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3362 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3363 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3365 if (!rdev->ops->add_mpath)
3368 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3371 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3374 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3377 struct net_device *dev = info->user_ptr[1];
3380 if (info->attrs[NL80211_ATTR_MAC])
3381 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3383 if (!rdev->ops->del_mpath)
3386 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3389 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3392 struct net_device *dev = info->user_ptr[1];
3393 struct bss_parameters params;
3395 memset(¶ms, 0, sizeof(params));
3396 /* default to not changing parameters */
3397 params.use_cts_prot = -1;
3398 params.use_short_preamble = -1;
3399 params.use_short_slot_time = -1;
3400 params.ap_isolate = -1;
3401 params.ht_opmode = -1;
3403 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3404 params.use_cts_prot =
3405 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3406 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3407 params.use_short_preamble =
3408 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3409 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3410 params.use_short_slot_time =
3411 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3412 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3413 params.basic_rates =
3414 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3415 params.basic_rates_len =
3416 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3418 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3419 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3420 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3422 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3424 if (!rdev->ops->change_bss)
3427 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3428 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3431 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3434 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3435 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3436 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3437 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3438 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3439 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3440 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3443 static int parse_reg_rule(struct nlattr *tb[],
3444 struct ieee80211_reg_rule *reg_rule)
3446 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3447 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3449 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3451 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3453 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3455 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3457 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3460 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3462 freq_range->start_freq_khz =
3463 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3464 freq_range->end_freq_khz =
3465 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3466 freq_range->max_bandwidth_khz =
3467 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3469 power_rule->max_eirp =
3470 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3472 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3473 power_rule->max_antenna_gain =
3474 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3479 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3485 * You should only get this when cfg80211 hasn't yet initialized
3486 * completely when built-in to the kernel right between the time
3487 * window between nl80211_init() and regulatory_init(), if that is
3490 mutex_lock(&cfg80211_mutex);
3491 if (unlikely(!cfg80211_regdomain)) {
3492 mutex_unlock(&cfg80211_mutex);
3493 return -EINPROGRESS;
3495 mutex_unlock(&cfg80211_mutex);
3497 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3500 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3502 r = regulatory_hint_user(data);
3507 static int nl80211_get_mesh_config(struct sk_buff *skb,
3508 struct genl_info *info)
3510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3511 struct net_device *dev = info->user_ptr[1];
3512 struct wireless_dev *wdev = dev->ieee80211_ptr;
3513 struct mesh_config cur_params;
3516 struct nlattr *pinfoattr;
3517 struct sk_buff *msg;
3519 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3522 if (!rdev->ops->get_mesh_config)
3526 /* If not connected, get default parameters */
3527 if (!wdev->mesh_id_len)
3528 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3530 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3537 /* Draw up a netlink message to send back */
3538 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3541 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3542 NL80211_CMD_GET_MESH_CONFIG);
3545 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3547 goto nla_put_failure;
3548 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3549 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3550 cur_params.dot11MeshRetryTimeout) ||
3551 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3552 cur_params.dot11MeshConfirmTimeout) ||
3553 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3554 cur_params.dot11MeshHoldingTimeout) ||
3555 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3556 cur_params.dot11MeshMaxPeerLinks) ||
3557 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3558 cur_params.dot11MeshMaxRetries) ||
3559 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3560 cur_params.dot11MeshTTL) ||
3561 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3562 cur_params.element_ttl) ||
3563 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3564 cur_params.auto_open_plinks) ||
3565 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3566 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3567 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3568 cur_params.dot11MeshHWMPmaxPREQretries) ||
3569 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3570 cur_params.path_refresh_time) ||
3571 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3572 cur_params.min_discovery_timeout) ||
3573 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3574 cur_params.dot11MeshHWMPactivePathTimeout) ||
3575 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3576 cur_params.dot11MeshHWMPpreqMinInterval) ||
3577 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3578 cur_params.dot11MeshHWMPperrMinInterval) ||
3579 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3580 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3581 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3582 cur_params.dot11MeshHWMPRootMode) ||
3583 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3584 cur_params.dot11MeshHWMPRannInterval) ||
3585 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3586 cur_params.dot11MeshGateAnnouncementProtocol) ||
3587 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3588 cur_params.dot11MeshForwarding) ||
3589 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3590 cur_params.rssi_threshold) ||
3591 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3592 cur_params.ht_opmode) ||
3593 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3594 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3595 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3596 cur_params.dot11MeshHWMProotInterval) ||
3597 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3598 cur_params.dot11MeshHWMPconfirmationInterval))
3599 goto nla_put_failure;
3600 nla_nest_end(msg, pinfoattr);
3601 genlmsg_end(msg, hdr);
3602 return genlmsg_reply(msg, info);
3605 genlmsg_cancel(msg, hdr);
3611 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3612 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3613 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3614 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3615 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3616 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3617 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3618 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3619 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3620 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3621 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3622 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3623 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3624 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3625 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3626 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3627 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3628 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3629 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3630 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3631 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3632 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3633 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3634 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3635 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3636 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3639 static const struct nla_policy
3640 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3641 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3642 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3643 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3644 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3645 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3646 .len = IEEE80211_MAX_DATA_LEN },
3647 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3650 static int nl80211_parse_mesh_config(struct genl_info *info,
3651 struct mesh_config *cfg,
3654 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3657 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3659 if (table[attr_num]) {\
3660 cfg->param = nla_fn(table[attr_num]); \
3661 mask |= (1 << (attr_num - 1)); \
3666 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3668 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3669 info->attrs[NL80211_ATTR_MESH_CONFIG],
3670 nl80211_meshconf_params_policy))
3673 /* This makes sure that there aren't more than 32 mesh config
3674 * parameters (otherwise our bitfield scheme would not work.) */
3675 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3677 /* Fill in the params struct */
3678 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3679 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3681 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3682 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3685 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3688 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3691 mask, NL80211_MESHCONF_MAX_RETRIES,
3693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3694 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3696 mask, NL80211_MESHCONF_ELEMENT_TTL,
3698 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3699 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3702 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3705 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3708 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3710 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3711 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3714 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3717 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3720 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3722 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3723 dot11MeshHWMPnetDiameterTraversalTime, mask,
3724 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3727 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3729 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3731 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3732 dot11MeshGateAnnouncementProtocol, mask,
3733 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3735 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3736 mask, NL80211_MESHCONF_FORWARDING,
3738 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3739 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3742 mask, NL80211_MESHCONF_HT_OPMODE,
3744 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3746 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3748 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3749 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3751 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3752 dot11MeshHWMPconfirmationInterval, mask,
3753 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3760 #undef FILL_IN_MESH_PARAM_IF_SET
3763 static int nl80211_parse_mesh_setup(struct genl_info *info,
3764 struct mesh_setup *setup)
3766 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3768 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3770 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3771 info->attrs[NL80211_ATTR_MESH_SETUP],
3772 nl80211_mesh_setup_params_policy))
3775 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3776 setup->sync_method =
3777 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3778 IEEE80211_SYNC_METHOD_VENDOR :
3779 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3781 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3782 setup->path_sel_proto =
3783 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3784 IEEE80211_PATH_PROTOCOL_VENDOR :
3785 IEEE80211_PATH_PROTOCOL_HWMP;
3787 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3788 setup->path_metric =
3789 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3790 IEEE80211_PATH_METRIC_VENDOR :
3791 IEEE80211_PATH_METRIC_AIRTIME;
3794 if (tb[NL80211_MESH_SETUP_IE]) {
3795 struct nlattr *ieattr =
3796 tb[NL80211_MESH_SETUP_IE];
3797 if (!is_valid_ie_attr(ieattr))
3799 setup->ie = nla_data(ieattr);
3800 setup->ie_len = nla_len(ieattr);
3802 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3803 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3808 static int nl80211_update_mesh_config(struct sk_buff *skb,
3809 struct genl_info *info)
3811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3812 struct net_device *dev = info->user_ptr[1];
3813 struct wireless_dev *wdev = dev->ieee80211_ptr;
3814 struct mesh_config cfg;
3818 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3821 if (!rdev->ops->update_mesh_config)
3824 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3829 if (!wdev->mesh_id_len)
3833 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3841 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3843 struct sk_buff *msg;
3845 struct nlattr *nl_reg_rules;
3849 mutex_lock(&cfg80211_mutex);
3851 if (!cfg80211_regdomain)
3854 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3860 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3861 NL80211_CMD_GET_REG);
3865 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3866 cfg80211_regdomain->alpha2) ||
3867 (cfg80211_regdomain->dfs_region &&
3868 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3869 cfg80211_regdomain->dfs_region)))
3870 goto nla_put_failure;
3872 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3874 goto nla_put_failure;
3876 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3877 struct nlattr *nl_reg_rule;
3878 const struct ieee80211_reg_rule *reg_rule;
3879 const struct ieee80211_freq_range *freq_range;
3880 const struct ieee80211_power_rule *power_rule;
3882 reg_rule = &cfg80211_regdomain->reg_rules[i];
3883 freq_range = ®_rule->freq_range;
3884 power_rule = ®_rule->power_rule;
3886 nl_reg_rule = nla_nest_start(msg, i);
3888 goto nla_put_failure;
3890 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3892 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3893 freq_range->start_freq_khz) ||
3894 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3895 freq_range->end_freq_khz) ||
3896 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3897 freq_range->max_bandwidth_khz) ||
3898 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3899 power_rule->max_antenna_gain) ||
3900 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3901 power_rule->max_eirp))
3902 goto nla_put_failure;
3904 nla_nest_end(msg, nl_reg_rule);
3907 nla_nest_end(msg, nl_reg_rules);
3909 genlmsg_end(msg, hdr);
3910 err = genlmsg_reply(msg, info);
3914 genlmsg_cancel(msg, hdr);
3919 mutex_unlock(&cfg80211_mutex);
3923 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3925 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3926 struct nlattr *nl_reg_rule;
3927 char *alpha2 = NULL;
3928 int rem_reg_rules = 0, r = 0;
3929 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3931 struct ieee80211_regdomain *rd = NULL;
3933 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3936 if (!info->attrs[NL80211_ATTR_REG_RULES])
3939 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3941 if (info->attrs[NL80211_ATTR_DFS_REGION])
3942 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3944 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3947 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3951 mutex_lock(&cfg80211_mutex);
3953 if (!reg_is_valid_request(alpha2)) {
3958 size_of_regd = sizeof(struct ieee80211_regdomain) +
3959 (num_rules * sizeof(struct ieee80211_reg_rule));
3961 rd = kzalloc(size_of_regd, GFP_KERNEL);
3967 rd->n_reg_rules = num_rules;
3968 rd->alpha2[0] = alpha2[0];
3969 rd->alpha2[1] = alpha2[1];
3972 * Disable DFS master mode if the DFS region was
3973 * not supported or known on this kernel.
3975 if (reg_supported_dfs_region(dfs_region))
3976 rd->dfs_region = dfs_region;
3978 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3980 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3981 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3983 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3989 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3995 BUG_ON(rule_idx != num_rules);
3999 mutex_unlock(&cfg80211_mutex);
4004 mutex_unlock(&cfg80211_mutex);
4009 static int validate_scan_freqs(struct nlattr *freqs)
4011 struct nlattr *attr1, *attr2;
4012 int n_channels = 0, tmp1, tmp2;
4014 nla_for_each_nested(attr1, freqs, tmp1) {
4017 * Some hardware has a limited channel list for
4018 * scanning, and it is pretty much nonsensical
4019 * to scan for a channel twice, so disallow that
4020 * and don't require drivers to check that the
4021 * channel list they get isn't longer than what
4022 * they can scan, as long as they can scan all
4023 * the channels they registered at once.
4025 nla_for_each_nested(attr2, freqs, tmp2)
4026 if (attr1 != attr2 &&
4027 nla_get_u32(attr1) == nla_get_u32(attr2))
4034 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4037 struct net_device *dev = info->user_ptr[1];
4038 struct cfg80211_scan_request *request;
4039 struct nlattr *attr;
4040 struct wiphy *wiphy;
4041 int err, tmp, n_ssids = 0, n_channels, i;
4044 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4047 wiphy = &rdev->wiphy;
4049 if (!rdev->ops->scan)
4055 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4056 n_channels = validate_scan_freqs(
4057 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4061 enum ieee80211_band band;
4064 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4065 if (wiphy->bands[band])
4066 n_channels += wiphy->bands[band]->n_channels;
4069 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4070 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4073 if (n_ssids > wiphy->max_scan_ssids)
4076 if (info->attrs[NL80211_ATTR_IE])
4077 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4081 if (ie_len > wiphy->max_scan_ie_len)
4084 request = kzalloc(sizeof(*request)
4085 + sizeof(*request->ssids) * n_ssids
4086 + sizeof(*request->channels) * n_channels
4087 + ie_len, GFP_KERNEL);
4092 request->ssids = (void *)&request->channels[n_channels];
4093 request->n_ssids = n_ssids;
4096 request->ie = (void *)(request->ssids + n_ssids);
4098 request->ie = (void *)(request->channels + n_channels);
4102 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4103 /* user specified, bail out if channel not found */
4104 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4105 struct ieee80211_channel *chan;
4107 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4114 /* ignore disabled channels */
4115 if (chan->flags & IEEE80211_CHAN_DISABLED)
4118 request->channels[i] = chan;
4122 enum ieee80211_band band;
4125 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4127 if (!wiphy->bands[band])
4129 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4130 struct ieee80211_channel *chan;
4132 chan = &wiphy->bands[band]->channels[j];
4134 if (chan->flags & IEEE80211_CHAN_DISABLED)
4137 request->channels[i] = chan;
4148 request->n_channels = i;
4151 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4152 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4153 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4157 request->ssids[i].ssid_len = nla_len(attr);
4158 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4163 if (info->attrs[NL80211_ATTR_IE]) {
4164 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4165 memcpy((void *)request->ie,
4166 nla_data(info->attrs[NL80211_ATTR_IE]),
4170 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4171 if (wiphy->bands[i])
4173 (1 << wiphy->bands[i]->n_bitrates) - 1;
4175 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4176 nla_for_each_nested(attr,
4177 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4179 enum ieee80211_band band = nla_type(attr);
4181 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4185 err = ieee80211_get_ratemask(wiphy->bands[band],
4188 &request->rates[band]);
4195 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4198 request->wiphy = &rdev->wiphy;
4200 rdev->scan_req = request;
4201 err = rdev->ops->scan(&rdev->wiphy, dev, request);
4204 nl80211_send_scan_start(rdev, dev);
4208 rdev->scan_req = NULL;
4215 static int nl80211_start_sched_scan(struct sk_buff *skb,
4216 struct genl_info *info)
4218 struct cfg80211_sched_scan_request *request;
4219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4220 struct net_device *dev = info->user_ptr[1];
4221 struct nlattr *attr;
4222 struct wiphy *wiphy;
4223 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4225 enum ieee80211_band band;
4227 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4229 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4230 !rdev->ops->sched_scan_start)
4233 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4236 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4239 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4243 wiphy = &rdev->wiphy;
4245 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4246 n_channels = validate_scan_freqs(
4247 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4253 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4254 if (wiphy->bands[band])
4255 n_channels += wiphy->bands[band]->n_channels;
4258 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4259 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4263 if (n_ssids > wiphy->max_sched_scan_ssids)
4266 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4267 nla_for_each_nested(attr,
4268 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4272 if (n_match_sets > wiphy->max_match_sets)
4275 if (info->attrs[NL80211_ATTR_IE])
4276 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4280 if (ie_len > wiphy->max_sched_scan_ie_len)
4283 mutex_lock(&rdev->sched_scan_mtx);
4285 if (rdev->sched_scan_req) {
4290 request = kzalloc(sizeof(*request)
4291 + sizeof(*request->ssids) * n_ssids
4292 + sizeof(*request->match_sets) * n_match_sets
4293 + sizeof(*request->channels) * n_channels
4294 + ie_len, GFP_KERNEL);
4301 request->ssids = (void *)&request->channels[n_channels];
4302 request->n_ssids = n_ssids;
4305 request->ie = (void *)(request->ssids + n_ssids);
4307 request->ie = (void *)(request->channels + n_channels);
4312 request->match_sets = (void *)(request->ie + ie_len);
4313 else if (request->ssids)
4314 request->match_sets =
4315 (void *)(request->ssids + n_ssids);
4317 request->match_sets =
4318 (void *)(request->channels + n_channels);
4320 request->n_match_sets = n_match_sets;
4323 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4324 /* user specified, bail out if channel not found */
4325 nla_for_each_nested(attr,
4326 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4328 struct ieee80211_channel *chan;
4330 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4337 /* ignore disabled channels */
4338 if (chan->flags & IEEE80211_CHAN_DISABLED)
4341 request->channels[i] = chan;
4346 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4348 if (!wiphy->bands[band])
4350 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4351 struct ieee80211_channel *chan;
4353 chan = &wiphy->bands[band]->channels[j];
4355 if (chan->flags & IEEE80211_CHAN_DISABLED)
4358 request->channels[i] = chan;
4369 request->n_channels = i;
4372 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4373 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4375 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4379 request->ssids[i].ssid_len = nla_len(attr);
4380 memcpy(request->ssids[i].ssid, nla_data(attr),
4387 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4388 nla_for_each_nested(attr,
4389 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4391 struct nlattr *ssid, *rssi;
4393 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4394 nla_data(attr), nla_len(attr),
4395 nl80211_match_policy);
4396 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4398 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4402 memcpy(request->match_sets[i].ssid.ssid,
4403 nla_data(ssid), nla_len(ssid));
4404 request->match_sets[i].ssid.ssid_len =
4407 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4409 request->rssi_thold = nla_get_u32(rssi);
4411 request->rssi_thold =
4412 NL80211_SCAN_RSSI_THOLD_OFF;
4417 if (info->attrs[NL80211_ATTR_IE]) {
4418 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4419 memcpy((void *)request->ie,
4420 nla_data(info->attrs[NL80211_ATTR_IE]),
4425 request->wiphy = &rdev->wiphy;
4426 request->interval = interval;
4428 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4430 rdev->sched_scan_req = request;
4431 nl80211_send_sched_scan(rdev, dev,
4432 NL80211_CMD_START_SCHED_SCAN);
4439 mutex_unlock(&rdev->sched_scan_mtx);
4443 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4444 struct genl_info *info)
4446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4449 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4450 !rdev->ops->sched_scan_stop)
4453 mutex_lock(&rdev->sched_scan_mtx);
4454 err = __cfg80211_stop_sched_scan(rdev, false);
4455 mutex_unlock(&rdev->sched_scan_mtx);
4460 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4462 struct cfg80211_registered_device *rdev,
4463 struct wireless_dev *wdev,
4464 struct cfg80211_internal_bss *intbss)
4466 struct cfg80211_bss *res = &intbss->pub;
4470 ASSERT_WDEV_LOCK(wdev);
4472 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4473 NL80211_CMD_NEW_SCAN_RESULTS);
4477 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4479 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4480 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4481 goto nla_put_failure;
4483 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4485 goto nla_put_failure;
4486 if ((!is_zero_ether_addr(res->bssid) &&
4487 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4488 (res->information_elements && res->len_information_elements &&
4489 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4490 res->len_information_elements,
4491 res->information_elements)) ||
4492 (res->beacon_ies && res->len_beacon_ies &&
4493 res->beacon_ies != res->information_elements &&
4494 nla_put(msg, NL80211_BSS_BEACON_IES,
4495 res->len_beacon_ies, res->beacon_ies)))
4496 goto nla_put_failure;
4498 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4499 goto nla_put_failure;
4500 if (res->beacon_interval &&
4501 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4502 goto nla_put_failure;
4503 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4504 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4505 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4506 jiffies_to_msecs(jiffies - intbss->ts)))
4507 goto nla_put_failure;
4509 switch (rdev->wiphy.signal_type) {
4510 case CFG80211_SIGNAL_TYPE_MBM:
4511 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4512 goto nla_put_failure;
4514 case CFG80211_SIGNAL_TYPE_UNSPEC:
4515 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4516 goto nla_put_failure;
4522 switch (wdev->iftype) {
4523 case NL80211_IFTYPE_P2P_CLIENT:
4524 case NL80211_IFTYPE_STATION:
4525 if (intbss == wdev->current_bss &&
4526 nla_put_u32(msg, NL80211_BSS_STATUS,
4527 NL80211_BSS_STATUS_ASSOCIATED))
4528 goto nla_put_failure;
4530 case NL80211_IFTYPE_ADHOC:
4531 if (intbss == wdev->current_bss &&
4532 nla_put_u32(msg, NL80211_BSS_STATUS,
4533 NL80211_BSS_STATUS_IBSS_JOINED))
4534 goto nla_put_failure;
4540 nla_nest_end(msg, bss);
4542 return genlmsg_end(msg, hdr);
4545 genlmsg_cancel(msg, hdr);
4549 static int nl80211_dump_scan(struct sk_buff *skb,
4550 struct netlink_callback *cb)
4552 struct cfg80211_registered_device *rdev;
4553 struct net_device *dev;
4554 struct cfg80211_internal_bss *scan;
4555 struct wireless_dev *wdev;
4556 int start = cb->args[1], idx = 0;
4559 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4563 wdev = dev->ieee80211_ptr;
4566 spin_lock_bh(&rdev->bss_lock);
4567 cfg80211_bss_expire(rdev);
4569 cb->seq = rdev->bss_generation;
4571 list_for_each_entry(scan, &rdev->bss_list, list) {
4574 if (nl80211_send_bss(skb, cb,
4575 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4576 rdev, wdev, scan) < 0) {
4582 spin_unlock_bh(&rdev->bss_lock);
4586 nl80211_finish_netdev_dump(rdev);
4591 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4592 int flags, struct net_device *dev,
4593 struct survey_info *survey)
4596 struct nlattr *infoattr;
4598 hdr = nl80211hdr_put(msg, pid, seq, flags,
4599 NL80211_CMD_NEW_SURVEY_RESULTS);
4603 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4604 goto nla_put_failure;
4606 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4608 goto nla_put_failure;
4610 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4611 survey->channel->center_freq))
4612 goto nla_put_failure;
4614 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4615 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4616 goto nla_put_failure;
4617 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4618 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4619 goto nla_put_failure;
4620 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4621 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4622 survey->channel_time))
4623 goto nla_put_failure;
4624 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4625 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4626 survey->channel_time_busy))
4627 goto nla_put_failure;
4628 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4629 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4630 survey->channel_time_ext_busy))
4631 goto nla_put_failure;
4632 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4633 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4634 survey->channel_time_rx))
4635 goto nla_put_failure;
4636 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4637 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4638 survey->channel_time_tx))
4639 goto nla_put_failure;
4641 nla_nest_end(msg, infoattr);
4643 return genlmsg_end(msg, hdr);
4646 genlmsg_cancel(msg, hdr);
4650 static int nl80211_dump_survey(struct sk_buff *skb,
4651 struct netlink_callback *cb)
4653 struct survey_info survey;
4654 struct cfg80211_registered_device *dev;
4655 struct net_device *netdev;
4656 int survey_idx = cb->args[1];
4659 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4663 if (!dev->ops->dump_survey) {
4669 struct ieee80211_channel *chan;
4671 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4678 /* Survey without a channel doesn't make sense */
4679 if (!survey.channel) {
4684 chan = ieee80211_get_channel(&dev->wiphy,
4685 survey.channel->center_freq);
4686 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4691 if (nl80211_send_survey(skb,
4692 NETLINK_CB(cb->skb).pid,
4693 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4701 cb->args[1] = survey_idx;
4704 nl80211_finish_netdev_dump(dev);
4708 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4710 return auth_type <= NL80211_AUTHTYPE_MAX;
4713 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4715 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4716 NL80211_WPA_VERSION_2));
4719 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4722 struct net_device *dev = info->user_ptr[1];
4723 struct ieee80211_channel *chan;
4724 const u8 *bssid, *ssid, *ie = NULL;
4725 int err, ssid_len, ie_len = 0;
4726 enum nl80211_auth_type auth_type;
4727 struct key_parse key;
4728 bool local_state_change;
4730 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4733 if (!info->attrs[NL80211_ATTR_MAC])
4736 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4739 if (!info->attrs[NL80211_ATTR_SSID])
4742 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4745 err = nl80211_parse_key(info, &key);
4750 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4752 if (!key.p.key || !key.p.key_len)
4754 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4755 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4756 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4757 key.p.key_len != WLAN_KEY_LEN_WEP104))
4769 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4770 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4779 if (!rdev->ops->auth)
4782 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4783 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4786 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4787 chan = ieee80211_get_channel(&rdev->wiphy,
4788 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4789 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4792 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4793 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4795 if (info->attrs[NL80211_ATTR_IE]) {
4796 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4797 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4800 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4801 if (!nl80211_valid_auth_type(auth_type))
4804 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4807 * Since we no longer track auth state, ignore
4808 * requests to only change local state.
4810 if (local_state_change)
4813 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4814 ssid, ssid_len, ie, ie_len,
4815 key.p.key, key.p.key_len, key.idx);
4818 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4819 struct genl_info *info,
4820 struct cfg80211_crypto_settings *settings,
4823 memset(settings, 0, sizeof(*settings));
4825 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4827 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4829 proto = nla_get_u16(
4830 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4831 settings->control_port_ethertype = cpu_to_be16(proto);
4832 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4835 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4836 settings->control_port_no_encrypt = true;
4838 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4840 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4844 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4845 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4846 settings->n_ciphers_pairwise = len / sizeof(u32);
4848 if (len % sizeof(u32))
4851 if (settings->n_ciphers_pairwise > cipher_limit)
4854 memcpy(settings->ciphers_pairwise, data, len);
4856 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4857 if (!cfg80211_supported_cipher_suite(
4859 settings->ciphers_pairwise[i]))
4863 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4864 settings->cipher_group =
4865 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4866 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4867 settings->cipher_group))
4871 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4872 settings->wpa_versions =
4873 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4874 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4878 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4882 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4883 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4884 settings->n_akm_suites = len / sizeof(u32);
4886 if (len % sizeof(u32))
4889 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4892 memcpy(settings->akm_suites, data, len);
4898 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4901 struct net_device *dev = info->user_ptr[1];
4902 struct cfg80211_crypto_settings crypto;
4903 struct ieee80211_channel *chan;
4904 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4905 int err, ssid_len, ie_len = 0;
4906 bool use_mfp = false;
4908 struct ieee80211_ht_cap *ht_capa = NULL;
4909 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4911 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4914 if (!info->attrs[NL80211_ATTR_MAC] ||
4915 !info->attrs[NL80211_ATTR_SSID] ||
4916 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4919 if (!rdev->ops->assoc)
4922 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4923 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4926 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4928 chan = ieee80211_get_channel(&rdev->wiphy,
4929 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4930 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4933 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4934 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4936 if (info->attrs[NL80211_ATTR_IE]) {
4937 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4938 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4941 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4942 enum nl80211_mfp mfp =
4943 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4944 if (mfp == NL80211_MFP_REQUIRED)
4946 else if (mfp != NL80211_MFP_NO)
4950 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4951 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4953 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4954 flags |= ASSOC_REQ_DISABLE_HT;
4956 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4958 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4960 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4963 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4966 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4968 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4969 ssid, ssid_len, ie, ie_len, use_mfp,
4970 &crypto, flags, ht_capa,
4976 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4979 struct net_device *dev = info->user_ptr[1];
4980 const u8 *ie = NULL, *bssid;
4983 bool local_state_change;
4985 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4988 if (!info->attrs[NL80211_ATTR_MAC])
4991 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4994 if (!rdev->ops->deauth)
4997 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4998 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5001 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5003 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5004 if (reason_code == 0) {
5005 /* Reason Code 0 is reserved */
5009 if (info->attrs[NL80211_ATTR_IE]) {
5010 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5011 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5014 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5016 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5017 local_state_change);
5020 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5023 struct net_device *dev = info->user_ptr[1];
5024 const u8 *ie = NULL, *bssid;
5027 bool local_state_change;
5029 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5032 if (!info->attrs[NL80211_ATTR_MAC])
5035 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5038 if (!rdev->ops->disassoc)
5041 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5042 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5045 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5047 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5048 if (reason_code == 0) {
5049 /* Reason Code 0 is reserved */
5053 if (info->attrs[NL80211_ATTR_IE]) {
5054 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5055 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5058 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5060 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5061 local_state_change);
5065 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5066 int mcast_rate[IEEE80211_NUM_BANDS],
5069 struct wiphy *wiphy = &rdev->wiphy;
5073 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5074 struct ieee80211_supported_band *sband;
5076 sband = wiphy->bands[band];
5080 for (i = 0; i < sband->n_bitrates; i++) {
5081 if (sband->bitrates[i].bitrate == rateval) {
5082 mcast_rate[band] = i + 1;
5092 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5095 struct net_device *dev = info->user_ptr[1];
5096 struct cfg80211_ibss_params ibss;
5097 struct wiphy *wiphy;
5098 struct cfg80211_cached_keys *connkeys = NULL;
5101 memset(&ibss, 0, sizeof(ibss));
5103 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5106 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5107 !info->attrs[NL80211_ATTR_SSID] ||
5108 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5111 ibss.beacon_interval = 100;
5113 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5114 ibss.beacon_interval =
5115 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5116 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5120 if (!rdev->ops->join_ibss)
5123 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5126 wiphy = &rdev->wiphy;
5128 if (info->attrs[NL80211_ATTR_MAC]) {
5129 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5131 if (!is_valid_ether_addr(ibss.bssid))
5134 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5135 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5137 if (info->attrs[NL80211_ATTR_IE]) {
5138 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5139 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5142 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5143 enum nl80211_channel_type channel_type;
5145 if (!nl80211_valid_channel_type(info, &channel_type))
5148 if (channel_type != NL80211_CHAN_NO_HT &&
5149 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5152 ibss.channel_type = channel_type;
5154 ibss.channel_type = NL80211_CHAN_NO_HT;
5157 ibss.channel = rdev_freq_to_chan(rdev,
5158 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5160 if (!ibss.channel ||
5161 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5162 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5165 /* Both channels should be able to initiate communication */
5166 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5167 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5168 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5172 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5173 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5175 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5177 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5179 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5180 struct ieee80211_supported_band *sband =
5181 wiphy->bands[ibss.channel->band];
5183 err = ieee80211_get_ratemask(sband, rates, n_rates,
5189 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5190 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5191 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5194 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5195 connkeys = nl80211_parse_connkeys(rdev,
5196 info->attrs[NL80211_ATTR_KEYS]);
5197 if (IS_ERR(connkeys))
5198 return PTR_ERR(connkeys);
5202 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5204 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5210 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5213 struct net_device *dev = info->user_ptr[1];
5215 if (!rdev->ops->leave_ibss)
5218 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5221 return cfg80211_leave_ibss(rdev, dev, false);
5224 #ifdef CONFIG_NL80211_TESTMODE
5225 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5229 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5234 if (!info->attrs[NL80211_ATTR_TESTDATA])
5238 if (rdev->ops->testmode_cmd) {
5239 rdev->testmode_info = info;
5240 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5241 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5242 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5243 rdev->testmode_info = NULL;
5249 static int nl80211_testmode_dump(struct sk_buff *skb,
5250 struct netlink_callback *cb)
5252 struct cfg80211_registered_device *rdev;
5260 * 0 is a valid index, but not valid for args[0],
5261 * so we need to offset by 1.
5263 phy_idx = cb->args[0] - 1;
5265 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5266 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5271 mutex_lock(&cfg80211_mutex);
5272 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5273 nl80211_fam.attrbuf);
5275 mutex_unlock(&cfg80211_mutex);
5276 return PTR_ERR(rdev);
5278 phy_idx = rdev->wiphy_idx;
5280 mutex_unlock(&cfg80211_mutex);
5282 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5284 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5288 data = nla_data((void *)cb->args[1]);
5289 data_len = nla_len((void *)cb->args[1]);
5292 mutex_lock(&cfg80211_mutex);
5293 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5295 mutex_unlock(&cfg80211_mutex);
5298 cfg80211_lock_rdev(rdev);
5299 mutex_unlock(&cfg80211_mutex);
5301 if (!rdev->ops->testmode_dump) {
5307 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5308 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5309 NL80211_CMD_TESTMODE);
5310 struct nlattr *tmdata;
5312 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5313 genlmsg_cancel(skb, hdr);
5317 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5319 genlmsg_cancel(skb, hdr);
5322 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5324 nla_nest_end(skb, tmdata);
5326 if (err == -ENOBUFS || err == -ENOENT) {
5327 genlmsg_cancel(skb, hdr);
5330 genlmsg_cancel(skb, hdr);
5334 genlmsg_end(skb, hdr);
5339 cb->args[0] = phy_idx + 1;
5341 cfg80211_unlock_rdev(rdev);
5345 static struct sk_buff *
5346 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5347 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5349 struct sk_buff *skb;
5351 struct nlattr *data;
5353 skb = nlmsg_new(approxlen + 100, gfp);
5357 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5363 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5364 goto nla_put_failure;
5365 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5367 ((void **)skb->cb)[0] = rdev;
5368 ((void **)skb->cb)[1] = hdr;
5369 ((void **)skb->cb)[2] = data;
5378 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5381 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5383 if (WARN_ON(!rdev->testmode_info))
5386 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5387 rdev->testmode_info->snd_pid,
5388 rdev->testmode_info->snd_seq,
5391 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5393 int cfg80211_testmode_reply(struct sk_buff *skb)
5395 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5396 void *hdr = ((void **)skb->cb)[1];
5397 struct nlattr *data = ((void **)skb->cb)[2];
5399 if (WARN_ON(!rdev->testmode_info)) {
5404 nla_nest_end(skb, data);
5405 genlmsg_end(skb, hdr);
5406 return genlmsg_reply(skb, rdev->testmode_info);
5408 EXPORT_SYMBOL(cfg80211_testmode_reply);
5410 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5411 int approxlen, gfp_t gfp)
5413 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5415 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5417 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5419 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5421 void *hdr = ((void **)skb->cb)[1];
5422 struct nlattr *data = ((void **)skb->cb)[2];
5424 nla_nest_end(skb, data);
5425 genlmsg_end(skb, hdr);
5426 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5428 EXPORT_SYMBOL(cfg80211_testmode_event);
5431 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5434 struct net_device *dev = info->user_ptr[1];
5435 struct cfg80211_connect_params connect;
5436 struct wiphy *wiphy;
5437 struct cfg80211_cached_keys *connkeys = NULL;
5440 memset(&connect, 0, sizeof(connect));
5442 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5445 if (!info->attrs[NL80211_ATTR_SSID] ||
5446 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5449 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5451 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5452 if (!nl80211_valid_auth_type(connect.auth_type))
5455 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5457 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5459 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5460 NL80211_MAX_NR_CIPHER_SUITES);
5464 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5465 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5468 wiphy = &rdev->wiphy;
5470 connect.bg_scan_period = -1;
5471 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5472 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5473 connect.bg_scan_period =
5474 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5477 if (info->attrs[NL80211_ATTR_MAC])
5478 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5479 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5480 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5482 if (info->attrs[NL80211_ATTR_IE]) {
5483 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5484 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5487 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5489 ieee80211_get_channel(wiphy,
5490 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5491 if (!connect.channel ||
5492 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5496 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5497 connkeys = nl80211_parse_connkeys(rdev,
5498 info->attrs[NL80211_ATTR_KEYS]);
5499 if (IS_ERR(connkeys))
5500 return PTR_ERR(connkeys);
5503 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5504 connect.flags |= ASSOC_REQ_DISABLE_HT;
5506 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5507 memcpy(&connect.ht_capa_mask,
5508 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5509 sizeof(connect.ht_capa_mask));
5511 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5512 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5514 memcpy(&connect.ht_capa,
5515 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5516 sizeof(connect.ht_capa));
5519 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5525 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5528 struct net_device *dev = info->user_ptr[1];
5531 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5532 reason = WLAN_REASON_DEAUTH_LEAVING;
5534 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5539 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5540 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5543 return cfg80211_disconnect(rdev, dev, reason, true);
5546 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5553 if (!info->attrs[NL80211_ATTR_PID])
5556 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5558 net = get_net_ns_by_pid(pid);
5560 return PTR_ERR(net);
5564 /* check if anything to do */
5565 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5566 err = cfg80211_switch_netns(rdev, net);
5572 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5575 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5576 struct cfg80211_pmksa *pmksa) = NULL;
5577 struct net_device *dev = info->user_ptr[1];
5578 struct cfg80211_pmksa pmksa;
5580 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5582 if (!info->attrs[NL80211_ATTR_MAC])
5585 if (!info->attrs[NL80211_ATTR_PMKID])
5588 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5589 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5591 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5592 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5595 switch (info->genlhdr->cmd) {
5596 case NL80211_CMD_SET_PMKSA:
5597 rdev_ops = rdev->ops->set_pmksa;
5599 case NL80211_CMD_DEL_PMKSA:
5600 rdev_ops = rdev->ops->del_pmksa;
5610 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5613 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5616 struct net_device *dev = info->user_ptr[1];
5618 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5619 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5622 if (!rdev->ops->flush_pmksa)
5625 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5628 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5631 struct net_device *dev = info->user_ptr[1];
5632 u8 action_code, dialog_token;
5636 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5637 !rdev->ops->tdls_mgmt)
5640 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5641 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5642 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5643 !info->attrs[NL80211_ATTR_IE] ||
5644 !info->attrs[NL80211_ATTR_MAC])
5647 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5648 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5649 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5650 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5652 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5653 dialog_token, status_code,
5654 nla_data(info->attrs[NL80211_ATTR_IE]),
5655 nla_len(info->attrs[NL80211_ATTR_IE]));
5658 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5661 struct net_device *dev = info->user_ptr[1];
5662 enum nl80211_tdls_operation operation;
5665 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5666 !rdev->ops->tdls_oper)
5669 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5670 !info->attrs[NL80211_ATTR_MAC])
5673 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5674 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5676 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5679 static int nl80211_remain_on_channel(struct sk_buff *skb,
5680 struct genl_info *info)
5682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5683 struct net_device *dev = info->user_ptr[1];
5684 struct ieee80211_channel *chan;
5685 struct sk_buff *msg;
5688 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5692 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5693 !info->attrs[NL80211_ATTR_DURATION])
5696 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5698 if (!rdev->ops->remain_on_channel ||
5699 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5703 * We should be on that channel for at least a minimum amount of
5704 * time (10ms) but no longer than the driver supports.
5706 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5707 duration > rdev->wiphy.max_remain_on_channel_duration)
5710 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5711 !nl80211_valid_channel_type(info, &channel_type))
5714 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5715 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5719 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5723 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5724 NL80211_CMD_REMAIN_ON_CHANNEL);
5731 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5732 channel_type, duration, &cookie);
5737 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5738 goto nla_put_failure;
5740 genlmsg_end(msg, hdr);
5742 return genlmsg_reply(msg, info);
5751 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5752 struct genl_info *info)
5754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5755 struct net_device *dev = info->user_ptr[1];
5758 if (!info->attrs[NL80211_ATTR_COOKIE])
5761 if (!rdev->ops->cancel_remain_on_channel)
5764 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5766 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5769 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5770 u8 *rates, u8 rates_len)
5775 for (i = 0; i < rates_len; i++) {
5776 int rate = (rates[i] & 0x7f) * 5;
5778 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5779 struct ieee80211_rate *srate =
5780 &sband->bitrates[ridx];
5781 if (rate == srate->bitrate) {
5786 if (ridx == sband->n_bitrates)
5787 return 0; /* rate not found */
5793 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5794 u8 *rates, u8 rates_len,
5795 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5799 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5801 for (i = 0; i < rates_len; i++) {
5804 ridx = rates[i] / 8;
5805 rbit = BIT(rates[i] % 8);
5807 /* check validity */
5808 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5811 /* check availability */
5812 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5821 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5822 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5823 .len = NL80211_MAX_SUPP_RATES },
5824 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5825 .len = NL80211_MAX_SUPP_HT_RATES },
5828 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5829 struct genl_info *info)
5831 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5833 struct cfg80211_bitrate_mask mask;
5835 struct net_device *dev = info->user_ptr[1];
5836 struct nlattr *tx_rates;
5837 struct ieee80211_supported_band *sband;
5839 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5842 if (!rdev->ops->set_bitrate_mask)
5845 memset(&mask, 0, sizeof(mask));
5846 /* Default to all rates enabled */
5847 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5848 sband = rdev->wiphy.bands[i];
5849 mask.control[i].legacy =
5850 sband ? (1 << sband->n_bitrates) - 1 : 0;
5852 memcpy(mask.control[i].mcs,
5853 sband->ht_cap.mcs.rx_mask,
5854 sizeof(mask.control[i].mcs));
5856 memset(mask.control[i].mcs, 0,
5857 sizeof(mask.control[i].mcs));
5861 * The nested attribute uses enum nl80211_band as the index. This maps
5862 * directly to the enum ieee80211_band values used in cfg80211.
5864 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5865 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5867 enum ieee80211_band band = nla_type(tx_rates);
5868 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5870 sband = rdev->wiphy.bands[band];
5873 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5874 nla_len(tx_rates), nl80211_txattr_policy);
5875 if (tb[NL80211_TXRATE_LEGACY]) {
5876 mask.control[band].legacy = rateset_to_mask(
5878 nla_data(tb[NL80211_TXRATE_LEGACY]),
5879 nla_len(tb[NL80211_TXRATE_LEGACY]));
5880 if ((mask.control[band].legacy == 0) &&
5881 nla_len(tb[NL80211_TXRATE_LEGACY]))
5884 if (tb[NL80211_TXRATE_MCS]) {
5885 if (!ht_rateset_to_mask(
5887 nla_data(tb[NL80211_TXRATE_MCS]),
5888 nla_len(tb[NL80211_TXRATE_MCS]),
5889 mask.control[band].mcs))
5893 if (mask.control[band].legacy == 0) {
5894 /* don't allow empty legacy rates if HT
5895 * is not even supported. */
5896 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5899 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5900 if (mask.control[band].mcs[i])
5903 /* legacy and mcs rates may not be both empty */
5904 if (i == IEEE80211_HT_MCS_MASK_LEN)
5909 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5912 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5915 struct net_device *dev = info->user_ptr[1];
5916 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5918 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5921 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5922 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5924 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5925 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5926 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5927 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5928 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5929 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5930 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5933 /* not much point in registering if we can't reply */
5934 if (!rdev->ops->mgmt_tx)
5937 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5939 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5940 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5943 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5946 struct net_device *dev = info->user_ptr[1];
5947 struct ieee80211_channel *chan;
5948 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5949 bool channel_type_valid = false;
5954 struct sk_buff *msg = NULL;
5955 unsigned int wait = 0;
5956 bool offchan, no_cck, dont_wait_for_ack;
5958 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5960 if (!info->attrs[NL80211_ATTR_FRAME] ||
5961 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5964 if (!rdev->ops->mgmt_tx)
5967 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5968 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5969 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5970 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5971 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5972 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5976 if (info->attrs[NL80211_ATTR_DURATION]) {
5977 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5979 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5982 * We should wait on the channel for at least a minimum amount
5983 * of time (10ms) but no longer than the driver supports.
5985 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5986 wait > rdev->wiphy.max_remain_on_channel_duration)
5991 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5992 if (!nl80211_valid_channel_type(info, &channel_type))
5994 channel_type_valid = true;
5997 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5999 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6002 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6004 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6005 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6009 if (!dont_wait_for_ack) {
6010 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6014 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6023 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6024 channel_type_valid, wait,
6025 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6026 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6027 no_cck, dont_wait_for_ack, &cookie);
6032 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6033 goto nla_put_failure;
6035 genlmsg_end(msg, hdr);
6036 return genlmsg_reply(msg, info);
6048 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6051 struct net_device *dev = info->user_ptr[1];
6054 if (!info->attrs[NL80211_ATTR_COOKIE])
6057 if (!rdev->ops->mgmt_tx_cancel_wait)
6060 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6061 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6062 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6063 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6064 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6065 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6068 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6070 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6073 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6076 struct wireless_dev *wdev;
6077 struct net_device *dev = info->user_ptr[1];
6082 if (!info->attrs[NL80211_ATTR_PS_STATE])
6085 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6087 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6090 wdev = dev->ieee80211_ptr;
6092 if (!rdev->ops->set_power_mgmt)
6095 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6097 if (state == wdev->ps)
6100 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6107 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6110 enum nl80211_ps_state ps_state;
6111 struct wireless_dev *wdev;
6112 struct net_device *dev = info->user_ptr[1];
6113 struct sk_buff *msg;
6117 wdev = dev->ieee80211_ptr;
6119 if (!rdev->ops->set_power_mgmt)
6122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6126 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6127 NL80211_CMD_GET_POWER_SAVE);
6134 ps_state = NL80211_PS_ENABLED;
6136 ps_state = NL80211_PS_DISABLED;
6138 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6139 goto nla_put_failure;
6141 genlmsg_end(msg, hdr);
6142 return genlmsg_reply(msg, info);
6151 static struct nla_policy
6152 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6153 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6154 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6155 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6158 static int nl80211_set_cqm_rssi(struct genl_info *info,
6159 s32 threshold, u32 hysteresis)
6161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6162 struct wireless_dev *wdev;
6163 struct net_device *dev = info->user_ptr[1];
6168 wdev = dev->ieee80211_ptr;
6170 if (!rdev->ops->set_cqm_rssi_config)
6173 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6174 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6177 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6178 threshold, hysteresis);
6181 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6183 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6187 cqm = info->attrs[NL80211_ATTR_CQM];
6193 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6194 nl80211_attr_cqm_policy);
6198 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6199 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6202 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6203 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6204 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6212 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6215 struct net_device *dev = info->user_ptr[1];
6216 struct mesh_config cfg;
6217 struct mesh_setup setup;
6220 /* start with default */
6221 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6222 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6224 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6225 /* and parse parameters if given */
6226 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6231 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6232 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6235 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6236 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6238 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6239 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6240 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6243 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6244 /* parse additional setup parameters if given */
6245 err = nl80211_parse_mesh_setup(info, &setup);
6250 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6251 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6253 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6254 !nl80211_valid_channel_type(info, &channel_type))
6257 setup.channel = rdev_freq_to_chan(rdev,
6258 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6262 setup.channel_type = channel_type;
6264 /* cfg80211_join_mesh() will sort it out */
6265 setup.channel = NULL;
6268 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6271 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6274 struct net_device *dev = info->user_ptr[1];
6276 return cfg80211_leave_mesh(rdev, dev);
6279 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6282 struct sk_buff *msg;
6285 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6288 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6292 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6293 NL80211_CMD_GET_WOWLAN);
6295 goto nla_put_failure;
6298 struct nlattr *nl_wowlan;
6300 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6302 goto nla_put_failure;
6304 if ((rdev->wowlan->any &&
6305 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6306 (rdev->wowlan->disconnect &&
6307 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6308 (rdev->wowlan->magic_pkt &&
6309 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6310 (rdev->wowlan->gtk_rekey_failure &&
6311 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6312 (rdev->wowlan->eap_identity_req &&
6313 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6314 (rdev->wowlan->four_way_handshake &&
6315 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6316 (rdev->wowlan->rfkill_release &&
6317 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6318 goto nla_put_failure;
6319 if (rdev->wowlan->n_patterns) {
6320 struct nlattr *nl_pats, *nl_pat;
6323 nl_pats = nla_nest_start(msg,
6324 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6326 goto nla_put_failure;
6328 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6329 nl_pat = nla_nest_start(msg, i + 1);
6331 goto nla_put_failure;
6332 pat_len = rdev->wowlan->patterns[i].pattern_len;
6333 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6334 DIV_ROUND_UP(pat_len, 8),
6335 rdev->wowlan->patterns[i].mask) ||
6336 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6338 rdev->wowlan->patterns[i].pattern))
6339 goto nla_put_failure;
6340 nla_nest_end(msg, nl_pat);
6342 nla_nest_end(msg, nl_pats);
6345 nla_nest_end(msg, nl_wowlan);
6348 genlmsg_end(msg, hdr);
6349 return genlmsg_reply(msg, info);
6356 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6359 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6360 struct cfg80211_wowlan no_triggers = {};
6361 struct cfg80211_wowlan new_triggers = {};
6362 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6364 bool prev_enabled = rdev->wowlan;
6366 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6369 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6372 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6373 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6374 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6375 nl80211_wowlan_policy);
6379 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6380 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6382 new_triggers.any = true;
6385 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6386 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6388 new_triggers.disconnect = true;
6391 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6392 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6394 new_triggers.magic_pkt = true;
6397 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6400 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6401 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6403 new_triggers.gtk_rekey_failure = true;
6406 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6407 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6409 new_triggers.eap_identity_req = true;
6412 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6413 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6415 new_triggers.four_way_handshake = true;
6418 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6419 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6421 new_triggers.rfkill_release = true;
6424 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6427 int rem, pat_len, mask_len;
6428 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6430 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6433 if (n_patterns > wowlan->n_patterns)
6436 new_triggers.patterns = kcalloc(n_patterns,
6437 sizeof(new_triggers.patterns[0]),
6439 if (!new_triggers.patterns)
6442 new_triggers.n_patterns = n_patterns;
6445 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6447 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6448 nla_data(pat), nla_len(pat), NULL);
6450 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6451 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6453 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6454 mask_len = DIV_ROUND_UP(pat_len, 8);
6455 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6458 if (pat_len > wowlan->pattern_max_len ||
6459 pat_len < wowlan->pattern_min_len)
6462 new_triggers.patterns[i].mask =
6463 kmalloc(mask_len + pat_len, GFP_KERNEL);
6464 if (!new_triggers.patterns[i].mask) {
6468 new_triggers.patterns[i].pattern =
6469 new_triggers.patterns[i].mask + mask_len;
6470 memcpy(new_triggers.patterns[i].mask,
6471 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6473 new_triggers.patterns[i].pattern_len = pat_len;
6474 memcpy(new_triggers.patterns[i].pattern,
6475 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6481 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6482 struct cfg80211_wowlan *ntrig;
6483 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6489 cfg80211_rdev_free_wowlan(rdev);
6490 rdev->wowlan = ntrig;
6493 cfg80211_rdev_free_wowlan(rdev);
6494 rdev->wowlan = NULL;
6497 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6498 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6502 for (i = 0; i < new_triggers.n_patterns; i++)
6503 kfree(new_triggers.patterns[i].mask);
6504 kfree(new_triggers.patterns);
6508 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6511 struct net_device *dev = info->user_ptr[1];
6512 struct wireless_dev *wdev = dev->ieee80211_ptr;
6513 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6514 struct cfg80211_gtk_rekey_data rekey_data;
6517 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6520 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6521 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6522 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6523 nl80211_rekey_policy);
6527 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6529 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6531 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6534 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6536 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6538 memcpy(rekey_data.replay_ctr,
6539 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6540 NL80211_REPLAY_CTR_LEN);
6543 if (!wdev->current_bss) {
6548 if (!rdev->ops->set_rekey_data) {
6553 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6559 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6560 struct genl_info *info)
6562 struct net_device *dev = info->user_ptr[1];
6563 struct wireless_dev *wdev = dev->ieee80211_ptr;
6565 if (wdev->iftype != NL80211_IFTYPE_AP &&
6566 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6569 if (wdev->ap_unexpected_nlpid)
6572 wdev->ap_unexpected_nlpid = info->snd_pid;
6576 static int nl80211_probe_client(struct sk_buff *skb,
6577 struct genl_info *info)
6579 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6580 struct net_device *dev = info->user_ptr[1];
6581 struct wireless_dev *wdev = dev->ieee80211_ptr;
6582 struct sk_buff *msg;
6588 if (wdev->iftype != NL80211_IFTYPE_AP &&
6589 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6592 if (!info->attrs[NL80211_ATTR_MAC])
6595 if (!rdev->ops->probe_client)
6598 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6602 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6603 NL80211_CMD_PROBE_CLIENT);
6610 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6612 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6616 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6617 goto nla_put_failure;
6619 genlmsg_end(msg, hdr);
6621 return genlmsg_reply(msg, info);
6630 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6634 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6637 if (rdev->ap_beacons_nlpid)
6640 rdev->ap_beacons_nlpid = info->snd_pid;
6645 #define NL80211_FLAG_NEED_WIPHY 0x01
6646 #define NL80211_FLAG_NEED_NETDEV 0x02
6647 #define NL80211_FLAG_NEED_RTNL 0x04
6648 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6649 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6650 NL80211_FLAG_CHECK_NETDEV_UP)
6652 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6653 struct genl_info *info)
6655 struct cfg80211_registered_device *rdev;
6656 struct net_device *dev;
6658 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6663 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6664 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6668 return PTR_ERR(rdev);
6670 info->user_ptr[0] = rdev;
6671 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6672 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6679 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6680 !netif_running(dev)) {
6681 cfg80211_unlock_rdev(rdev);
6687 info->user_ptr[0] = rdev;
6688 info->user_ptr[1] = dev;
6694 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6695 struct genl_info *info)
6697 if (info->user_ptr[0])
6698 cfg80211_unlock_rdev(info->user_ptr[0]);
6699 if (info->user_ptr[1])
6700 dev_put(info->user_ptr[1]);
6701 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6705 static struct genl_ops nl80211_ops[] = {
6707 .cmd = NL80211_CMD_GET_WIPHY,
6708 .doit = nl80211_get_wiphy,
6709 .dumpit = nl80211_dump_wiphy,
6710 .policy = nl80211_policy,
6711 /* can be retrieved by unprivileged users */
6712 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6715 .cmd = NL80211_CMD_SET_WIPHY,
6716 .doit = nl80211_set_wiphy,
6717 .policy = nl80211_policy,
6718 .flags = GENL_ADMIN_PERM,
6719 .internal_flags = NL80211_FLAG_NEED_RTNL,
6722 .cmd = NL80211_CMD_GET_INTERFACE,
6723 .doit = nl80211_get_interface,
6724 .dumpit = nl80211_dump_interface,
6725 .policy = nl80211_policy,
6726 /* can be retrieved by unprivileged users */
6727 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6730 .cmd = NL80211_CMD_SET_INTERFACE,
6731 .doit = nl80211_set_interface,
6732 .policy = nl80211_policy,
6733 .flags = GENL_ADMIN_PERM,
6734 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6735 NL80211_FLAG_NEED_RTNL,
6738 .cmd = NL80211_CMD_NEW_INTERFACE,
6739 .doit = nl80211_new_interface,
6740 .policy = nl80211_policy,
6741 .flags = GENL_ADMIN_PERM,
6742 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6743 NL80211_FLAG_NEED_RTNL,
6746 .cmd = NL80211_CMD_DEL_INTERFACE,
6747 .doit = nl80211_del_interface,
6748 .policy = nl80211_policy,
6749 .flags = GENL_ADMIN_PERM,
6750 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6751 NL80211_FLAG_NEED_RTNL,
6754 .cmd = NL80211_CMD_GET_KEY,
6755 .doit = nl80211_get_key,
6756 .policy = nl80211_policy,
6757 .flags = GENL_ADMIN_PERM,
6758 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6759 NL80211_FLAG_NEED_RTNL,
6762 .cmd = NL80211_CMD_SET_KEY,
6763 .doit = nl80211_set_key,
6764 .policy = nl80211_policy,
6765 .flags = GENL_ADMIN_PERM,
6766 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6767 NL80211_FLAG_NEED_RTNL,
6770 .cmd = NL80211_CMD_NEW_KEY,
6771 .doit = nl80211_new_key,
6772 .policy = nl80211_policy,
6773 .flags = GENL_ADMIN_PERM,
6774 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6775 NL80211_FLAG_NEED_RTNL,
6778 .cmd = NL80211_CMD_DEL_KEY,
6779 .doit = nl80211_del_key,
6780 .policy = nl80211_policy,
6781 .flags = GENL_ADMIN_PERM,
6782 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6783 NL80211_FLAG_NEED_RTNL,
6786 .cmd = NL80211_CMD_SET_BEACON,
6787 .policy = nl80211_policy,
6788 .flags = GENL_ADMIN_PERM,
6789 .doit = nl80211_set_beacon,
6790 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6791 NL80211_FLAG_NEED_RTNL,
6794 .cmd = NL80211_CMD_START_AP,
6795 .policy = nl80211_policy,
6796 .flags = GENL_ADMIN_PERM,
6797 .doit = nl80211_start_ap,
6798 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6799 NL80211_FLAG_NEED_RTNL,
6802 .cmd = NL80211_CMD_STOP_AP,
6803 .policy = nl80211_policy,
6804 .flags = GENL_ADMIN_PERM,
6805 .doit = nl80211_stop_ap,
6806 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6807 NL80211_FLAG_NEED_RTNL,
6810 .cmd = NL80211_CMD_GET_STATION,
6811 .doit = nl80211_get_station,
6812 .dumpit = nl80211_dump_station,
6813 .policy = nl80211_policy,
6814 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6815 NL80211_FLAG_NEED_RTNL,
6818 .cmd = NL80211_CMD_SET_STATION,
6819 .doit = nl80211_set_station,
6820 .policy = nl80211_policy,
6821 .flags = GENL_ADMIN_PERM,
6822 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6823 NL80211_FLAG_NEED_RTNL,
6826 .cmd = NL80211_CMD_NEW_STATION,
6827 .doit = nl80211_new_station,
6828 .policy = nl80211_policy,
6829 .flags = GENL_ADMIN_PERM,
6830 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6831 NL80211_FLAG_NEED_RTNL,
6834 .cmd = NL80211_CMD_DEL_STATION,
6835 .doit = nl80211_del_station,
6836 .policy = nl80211_policy,
6837 .flags = GENL_ADMIN_PERM,
6838 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6839 NL80211_FLAG_NEED_RTNL,
6842 .cmd = NL80211_CMD_GET_MPATH,
6843 .doit = nl80211_get_mpath,
6844 .dumpit = nl80211_dump_mpath,
6845 .policy = nl80211_policy,
6846 .flags = GENL_ADMIN_PERM,
6847 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6848 NL80211_FLAG_NEED_RTNL,
6851 .cmd = NL80211_CMD_SET_MPATH,
6852 .doit = nl80211_set_mpath,
6853 .policy = nl80211_policy,
6854 .flags = GENL_ADMIN_PERM,
6855 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6856 NL80211_FLAG_NEED_RTNL,
6859 .cmd = NL80211_CMD_NEW_MPATH,
6860 .doit = nl80211_new_mpath,
6861 .policy = nl80211_policy,
6862 .flags = GENL_ADMIN_PERM,
6863 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6864 NL80211_FLAG_NEED_RTNL,
6867 .cmd = NL80211_CMD_DEL_MPATH,
6868 .doit = nl80211_del_mpath,
6869 .policy = nl80211_policy,
6870 .flags = GENL_ADMIN_PERM,
6871 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6872 NL80211_FLAG_NEED_RTNL,
6875 .cmd = NL80211_CMD_SET_BSS,
6876 .doit = nl80211_set_bss,
6877 .policy = nl80211_policy,
6878 .flags = GENL_ADMIN_PERM,
6879 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6880 NL80211_FLAG_NEED_RTNL,
6883 .cmd = NL80211_CMD_GET_REG,
6884 .doit = nl80211_get_reg,
6885 .policy = nl80211_policy,
6886 /* can be retrieved by unprivileged users */
6889 .cmd = NL80211_CMD_SET_REG,
6890 .doit = nl80211_set_reg,
6891 .policy = nl80211_policy,
6892 .flags = GENL_ADMIN_PERM,
6895 .cmd = NL80211_CMD_REQ_SET_REG,
6896 .doit = nl80211_req_set_reg,
6897 .policy = nl80211_policy,
6898 .flags = GENL_ADMIN_PERM,
6901 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6902 .doit = nl80211_get_mesh_config,
6903 .policy = nl80211_policy,
6904 /* can be retrieved by unprivileged users */
6905 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6906 NL80211_FLAG_NEED_RTNL,
6909 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6910 .doit = nl80211_update_mesh_config,
6911 .policy = nl80211_policy,
6912 .flags = GENL_ADMIN_PERM,
6913 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6914 NL80211_FLAG_NEED_RTNL,
6917 .cmd = NL80211_CMD_TRIGGER_SCAN,
6918 .doit = nl80211_trigger_scan,
6919 .policy = nl80211_policy,
6920 .flags = GENL_ADMIN_PERM,
6921 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6922 NL80211_FLAG_NEED_RTNL,
6925 .cmd = NL80211_CMD_GET_SCAN,
6926 .policy = nl80211_policy,
6927 .dumpit = nl80211_dump_scan,
6930 .cmd = NL80211_CMD_START_SCHED_SCAN,
6931 .doit = nl80211_start_sched_scan,
6932 .policy = nl80211_policy,
6933 .flags = GENL_ADMIN_PERM,
6934 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6935 NL80211_FLAG_NEED_RTNL,
6938 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6939 .doit = nl80211_stop_sched_scan,
6940 .policy = nl80211_policy,
6941 .flags = GENL_ADMIN_PERM,
6942 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6943 NL80211_FLAG_NEED_RTNL,
6946 .cmd = NL80211_CMD_AUTHENTICATE,
6947 .doit = nl80211_authenticate,
6948 .policy = nl80211_policy,
6949 .flags = GENL_ADMIN_PERM,
6950 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6951 NL80211_FLAG_NEED_RTNL,
6954 .cmd = NL80211_CMD_ASSOCIATE,
6955 .doit = nl80211_associate,
6956 .policy = nl80211_policy,
6957 .flags = GENL_ADMIN_PERM,
6958 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6959 NL80211_FLAG_NEED_RTNL,
6962 .cmd = NL80211_CMD_DEAUTHENTICATE,
6963 .doit = nl80211_deauthenticate,
6964 .policy = nl80211_policy,
6965 .flags = GENL_ADMIN_PERM,
6966 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6967 NL80211_FLAG_NEED_RTNL,
6970 .cmd = NL80211_CMD_DISASSOCIATE,
6971 .doit = nl80211_disassociate,
6972 .policy = nl80211_policy,
6973 .flags = GENL_ADMIN_PERM,
6974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6975 NL80211_FLAG_NEED_RTNL,
6978 .cmd = NL80211_CMD_JOIN_IBSS,
6979 .doit = nl80211_join_ibss,
6980 .policy = nl80211_policy,
6981 .flags = GENL_ADMIN_PERM,
6982 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6983 NL80211_FLAG_NEED_RTNL,
6986 .cmd = NL80211_CMD_LEAVE_IBSS,
6987 .doit = nl80211_leave_ibss,
6988 .policy = nl80211_policy,
6989 .flags = GENL_ADMIN_PERM,
6990 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6991 NL80211_FLAG_NEED_RTNL,
6993 #ifdef CONFIG_NL80211_TESTMODE
6995 .cmd = NL80211_CMD_TESTMODE,
6996 .doit = nl80211_testmode_do,
6997 .dumpit = nl80211_testmode_dump,
6998 .policy = nl80211_policy,
6999 .flags = GENL_ADMIN_PERM,
7000 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7001 NL80211_FLAG_NEED_RTNL,
7005 .cmd = NL80211_CMD_CONNECT,
7006 .doit = nl80211_connect,
7007 .policy = nl80211_policy,
7008 .flags = GENL_ADMIN_PERM,
7009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7010 NL80211_FLAG_NEED_RTNL,
7013 .cmd = NL80211_CMD_DISCONNECT,
7014 .doit = nl80211_disconnect,
7015 .policy = nl80211_policy,
7016 .flags = GENL_ADMIN_PERM,
7017 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7018 NL80211_FLAG_NEED_RTNL,
7021 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7022 .doit = nl80211_wiphy_netns,
7023 .policy = nl80211_policy,
7024 .flags = GENL_ADMIN_PERM,
7025 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7026 NL80211_FLAG_NEED_RTNL,
7029 .cmd = NL80211_CMD_GET_SURVEY,
7030 .policy = nl80211_policy,
7031 .dumpit = nl80211_dump_survey,
7034 .cmd = NL80211_CMD_SET_PMKSA,
7035 .doit = nl80211_setdel_pmksa,
7036 .policy = nl80211_policy,
7037 .flags = GENL_ADMIN_PERM,
7038 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7039 NL80211_FLAG_NEED_RTNL,
7042 .cmd = NL80211_CMD_DEL_PMKSA,
7043 .doit = nl80211_setdel_pmksa,
7044 .policy = nl80211_policy,
7045 .flags = GENL_ADMIN_PERM,
7046 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7047 NL80211_FLAG_NEED_RTNL,
7050 .cmd = NL80211_CMD_FLUSH_PMKSA,
7051 .doit = nl80211_flush_pmksa,
7052 .policy = nl80211_policy,
7053 .flags = GENL_ADMIN_PERM,
7054 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7055 NL80211_FLAG_NEED_RTNL,
7058 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7059 .doit = nl80211_remain_on_channel,
7060 .policy = nl80211_policy,
7061 .flags = GENL_ADMIN_PERM,
7062 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7063 NL80211_FLAG_NEED_RTNL,
7066 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7067 .doit = nl80211_cancel_remain_on_channel,
7068 .policy = nl80211_policy,
7069 .flags = GENL_ADMIN_PERM,
7070 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7071 NL80211_FLAG_NEED_RTNL,
7074 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7075 .doit = nl80211_set_tx_bitrate_mask,
7076 .policy = nl80211_policy,
7077 .flags = GENL_ADMIN_PERM,
7078 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7079 NL80211_FLAG_NEED_RTNL,
7082 .cmd = NL80211_CMD_REGISTER_FRAME,
7083 .doit = nl80211_register_mgmt,
7084 .policy = nl80211_policy,
7085 .flags = GENL_ADMIN_PERM,
7086 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7087 NL80211_FLAG_NEED_RTNL,
7090 .cmd = NL80211_CMD_FRAME,
7091 .doit = nl80211_tx_mgmt,
7092 .policy = nl80211_policy,
7093 .flags = GENL_ADMIN_PERM,
7094 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7095 NL80211_FLAG_NEED_RTNL,
7098 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7099 .doit = nl80211_tx_mgmt_cancel_wait,
7100 .policy = nl80211_policy,
7101 .flags = GENL_ADMIN_PERM,
7102 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7103 NL80211_FLAG_NEED_RTNL,
7106 .cmd = NL80211_CMD_SET_POWER_SAVE,
7107 .doit = nl80211_set_power_save,
7108 .policy = nl80211_policy,
7109 .flags = GENL_ADMIN_PERM,
7110 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7111 NL80211_FLAG_NEED_RTNL,
7114 .cmd = NL80211_CMD_GET_POWER_SAVE,
7115 .doit = nl80211_get_power_save,
7116 .policy = nl80211_policy,
7117 /* can be retrieved by unprivileged users */
7118 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7119 NL80211_FLAG_NEED_RTNL,
7122 .cmd = NL80211_CMD_SET_CQM,
7123 .doit = nl80211_set_cqm,
7124 .policy = nl80211_policy,
7125 .flags = GENL_ADMIN_PERM,
7126 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7127 NL80211_FLAG_NEED_RTNL,
7130 .cmd = NL80211_CMD_SET_CHANNEL,
7131 .doit = nl80211_set_channel,
7132 .policy = nl80211_policy,
7133 .flags = GENL_ADMIN_PERM,
7134 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7135 NL80211_FLAG_NEED_RTNL,
7138 .cmd = NL80211_CMD_SET_WDS_PEER,
7139 .doit = nl80211_set_wds_peer,
7140 .policy = nl80211_policy,
7141 .flags = GENL_ADMIN_PERM,
7142 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7143 NL80211_FLAG_NEED_RTNL,
7146 .cmd = NL80211_CMD_JOIN_MESH,
7147 .doit = nl80211_join_mesh,
7148 .policy = nl80211_policy,
7149 .flags = GENL_ADMIN_PERM,
7150 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7151 NL80211_FLAG_NEED_RTNL,
7154 .cmd = NL80211_CMD_LEAVE_MESH,
7155 .doit = nl80211_leave_mesh,
7156 .policy = nl80211_policy,
7157 .flags = GENL_ADMIN_PERM,
7158 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7159 NL80211_FLAG_NEED_RTNL,
7162 .cmd = NL80211_CMD_GET_WOWLAN,
7163 .doit = nl80211_get_wowlan,
7164 .policy = nl80211_policy,
7165 /* can be retrieved by unprivileged users */
7166 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7167 NL80211_FLAG_NEED_RTNL,
7170 .cmd = NL80211_CMD_SET_WOWLAN,
7171 .doit = nl80211_set_wowlan,
7172 .policy = nl80211_policy,
7173 .flags = GENL_ADMIN_PERM,
7174 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7175 NL80211_FLAG_NEED_RTNL,
7178 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7179 .doit = nl80211_set_rekey_data,
7180 .policy = nl80211_policy,
7181 .flags = GENL_ADMIN_PERM,
7182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7183 NL80211_FLAG_NEED_RTNL,
7186 .cmd = NL80211_CMD_TDLS_MGMT,
7187 .doit = nl80211_tdls_mgmt,
7188 .policy = nl80211_policy,
7189 .flags = GENL_ADMIN_PERM,
7190 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7191 NL80211_FLAG_NEED_RTNL,
7194 .cmd = NL80211_CMD_TDLS_OPER,
7195 .doit = nl80211_tdls_oper,
7196 .policy = nl80211_policy,
7197 .flags = GENL_ADMIN_PERM,
7198 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7199 NL80211_FLAG_NEED_RTNL,
7202 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7203 .doit = nl80211_register_unexpected_frame,
7204 .policy = nl80211_policy,
7205 .flags = GENL_ADMIN_PERM,
7206 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7207 NL80211_FLAG_NEED_RTNL,
7210 .cmd = NL80211_CMD_PROBE_CLIENT,
7211 .doit = nl80211_probe_client,
7212 .policy = nl80211_policy,
7213 .flags = GENL_ADMIN_PERM,
7214 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7215 NL80211_FLAG_NEED_RTNL,
7218 .cmd = NL80211_CMD_REGISTER_BEACONS,
7219 .doit = nl80211_register_beacons,
7220 .policy = nl80211_policy,
7221 .flags = GENL_ADMIN_PERM,
7222 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7223 NL80211_FLAG_NEED_RTNL,
7226 .cmd = NL80211_CMD_SET_NOACK_MAP,
7227 .doit = nl80211_set_noack_map,
7228 .policy = nl80211_policy,
7229 .flags = GENL_ADMIN_PERM,
7230 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7231 NL80211_FLAG_NEED_RTNL,
7236 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7240 /* multicast groups */
7241 static struct genl_multicast_group nl80211_config_mcgrp = {
7244 static struct genl_multicast_group nl80211_scan_mcgrp = {
7247 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7248 .name = "regulatory",
7251 /* notification functions */
7253 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7255 struct sk_buff *msg;
7257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7261 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7266 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7267 nl80211_config_mcgrp.id, GFP_KERNEL);
7270 static int nl80211_add_scan_req(struct sk_buff *msg,
7271 struct cfg80211_registered_device *rdev)
7273 struct cfg80211_scan_request *req = rdev->scan_req;
7274 struct nlattr *nest;
7277 ASSERT_RDEV_LOCK(rdev);
7282 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7284 goto nla_put_failure;
7285 for (i = 0; i < req->n_ssids; i++) {
7286 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7287 goto nla_put_failure;
7289 nla_nest_end(msg, nest);
7291 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7293 goto nla_put_failure;
7294 for (i = 0; i < req->n_channels; i++) {
7295 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7296 goto nla_put_failure;
7298 nla_nest_end(msg, nest);
7301 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7302 goto nla_put_failure;
7309 static int nl80211_send_scan_msg(struct sk_buff *msg,
7310 struct cfg80211_registered_device *rdev,
7311 struct net_device *netdev,
7312 u32 pid, u32 seq, int flags,
7317 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7322 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7323 goto nla_put_failure;
7325 /* ignore errors and send incomplete event anyway */
7326 nl80211_add_scan_req(msg, rdev);
7328 return genlmsg_end(msg, hdr);
7331 genlmsg_cancel(msg, hdr);
7336 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7337 struct cfg80211_registered_device *rdev,
7338 struct net_device *netdev,
7339 u32 pid, u32 seq, int flags, u32 cmd)
7343 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7347 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7348 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7349 goto nla_put_failure;
7351 return genlmsg_end(msg, hdr);
7354 genlmsg_cancel(msg, hdr);
7358 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7359 struct net_device *netdev)
7361 struct sk_buff *msg;
7363 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7367 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7368 NL80211_CMD_TRIGGER_SCAN) < 0) {
7373 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7374 nl80211_scan_mcgrp.id, GFP_KERNEL);
7377 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7378 struct net_device *netdev)
7380 struct sk_buff *msg;
7382 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7386 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7387 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7392 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7393 nl80211_scan_mcgrp.id, GFP_KERNEL);
7396 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7397 struct net_device *netdev)
7399 struct sk_buff *msg;
7401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7405 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7406 NL80211_CMD_SCAN_ABORTED) < 0) {
7411 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7412 nl80211_scan_mcgrp.id, GFP_KERNEL);
7415 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7416 struct net_device *netdev)
7418 struct sk_buff *msg;
7420 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7424 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7425 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7430 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7431 nl80211_scan_mcgrp.id, GFP_KERNEL);
7434 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7435 struct net_device *netdev, u32 cmd)
7437 struct sk_buff *msg;
7439 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7443 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7448 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7449 nl80211_scan_mcgrp.id, GFP_KERNEL);
7453 * This can happen on global regulatory changes or device specific settings
7454 * based on custom world regulatory domains.
7456 void nl80211_send_reg_change_event(struct regulatory_request *request)
7458 struct sk_buff *msg;
7461 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7465 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7471 /* Userspace can always count this one always being set */
7472 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7473 goto nla_put_failure;
7475 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7476 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7477 NL80211_REGDOM_TYPE_WORLD))
7478 goto nla_put_failure;
7479 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7480 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7481 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7482 goto nla_put_failure;
7483 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7484 request->intersect) {
7485 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7486 NL80211_REGDOM_TYPE_INTERSECTION))
7487 goto nla_put_failure;
7489 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7490 NL80211_REGDOM_TYPE_COUNTRY) ||
7491 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7493 goto nla_put_failure;
7496 if (wiphy_idx_valid(request->wiphy_idx) &&
7497 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7498 goto nla_put_failure;
7500 genlmsg_end(msg, hdr);
7503 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7510 genlmsg_cancel(msg, hdr);
7514 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7515 struct net_device *netdev,
7516 const u8 *buf, size_t len,
7517 enum nl80211_commands cmd, gfp_t gfp)
7519 struct sk_buff *msg;
7522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7526 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7532 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7533 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7534 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7535 goto nla_put_failure;
7537 genlmsg_end(msg, hdr);
7539 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7540 nl80211_mlme_mcgrp.id, gfp);
7544 genlmsg_cancel(msg, hdr);
7548 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7549 struct net_device *netdev, const u8 *buf,
7550 size_t len, gfp_t gfp)
7552 nl80211_send_mlme_event(rdev, netdev, buf, len,
7553 NL80211_CMD_AUTHENTICATE, gfp);
7556 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7557 struct net_device *netdev, const u8 *buf,
7558 size_t len, gfp_t gfp)
7560 nl80211_send_mlme_event(rdev, netdev, buf, len,
7561 NL80211_CMD_ASSOCIATE, gfp);
7564 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7565 struct net_device *netdev, const u8 *buf,
7566 size_t len, gfp_t gfp)
7568 nl80211_send_mlme_event(rdev, netdev, buf, len,
7569 NL80211_CMD_DEAUTHENTICATE, gfp);
7572 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7573 struct net_device *netdev, const u8 *buf,
7574 size_t len, gfp_t gfp)
7576 nl80211_send_mlme_event(rdev, netdev, buf, len,
7577 NL80211_CMD_DISASSOCIATE, gfp);
7580 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7581 struct net_device *netdev, const u8 *buf,
7582 size_t len, gfp_t gfp)
7584 nl80211_send_mlme_event(rdev, netdev, buf, len,
7585 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7588 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7589 struct net_device *netdev, const u8 *buf,
7590 size_t len, gfp_t gfp)
7592 nl80211_send_mlme_event(rdev, netdev, buf, len,
7593 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7596 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7597 struct net_device *netdev, int cmd,
7598 const u8 *addr, gfp_t gfp)
7600 struct sk_buff *msg;
7603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7607 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7613 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7614 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7615 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7616 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7617 goto nla_put_failure;
7619 genlmsg_end(msg, hdr);
7621 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7622 nl80211_mlme_mcgrp.id, gfp);
7626 genlmsg_cancel(msg, hdr);
7630 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7631 struct net_device *netdev, const u8 *addr,
7634 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7638 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7639 struct net_device *netdev, const u8 *addr,
7642 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7646 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7647 struct net_device *netdev, const u8 *bssid,
7648 const u8 *req_ie, size_t req_ie_len,
7649 const u8 *resp_ie, size_t resp_ie_len,
7650 u16 status, gfp_t gfp)
7652 struct sk_buff *msg;
7655 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7659 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7665 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7666 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7667 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7668 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7670 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7672 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7673 goto nla_put_failure;
7675 genlmsg_end(msg, hdr);
7677 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7678 nl80211_mlme_mcgrp.id, gfp);
7682 genlmsg_cancel(msg, hdr);
7687 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7688 struct net_device *netdev, const u8 *bssid,
7689 const u8 *req_ie, size_t req_ie_len,
7690 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7692 struct sk_buff *msg;
7695 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7699 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7705 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7706 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7707 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7709 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7711 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7712 goto nla_put_failure;
7714 genlmsg_end(msg, hdr);
7716 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7717 nl80211_mlme_mcgrp.id, gfp);
7721 genlmsg_cancel(msg, hdr);
7726 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7727 struct net_device *netdev, u16 reason,
7728 const u8 *ie, size_t ie_len, bool from_ap)
7730 struct sk_buff *msg;
7733 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7737 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7743 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7744 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7745 (from_ap && reason &&
7746 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7748 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7749 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7750 goto nla_put_failure;
7752 genlmsg_end(msg, hdr);
7754 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7755 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7759 genlmsg_cancel(msg, hdr);
7764 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7765 struct net_device *netdev, const u8 *bssid,
7768 struct sk_buff *msg;
7771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7775 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7781 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7782 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7783 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7784 goto nla_put_failure;
7786 genlmsg_end(msg, hdr);
7788 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7789 nl80211_mlme_mcgrp.id, gfp);
7793 genlmsg_cancel(msg, hdr);
7797 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7798 struct net_device *netdev,
7799 const u8 *macaddr, const u8* ie, u8 ie_len,
7802 struct sk_buff *msg;
7805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7809 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7815 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7816 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7817 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7819 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7820 goto nla_put_failure;
7822 genlmsg_end(msg, hdr);
7824 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7825 nl80211_mlme_mcgrp.id, gfp);
7829 genlmsg_cancel(msg, hdr);
7833 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7834 struct net_device *netdev, const u8 *addr,
7835 enum nl80211_key_type key_type, int key_id,
7836 const u8 *tsc, gfp_t gfp)
7838 struct sk_buff *msg;
7841 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7845 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7851 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7852 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7853 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7854 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7856 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7857 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7858 goto nla_put_failure;
7860 genlmsg_end(msg, hdr);
7862 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7863 nl80211_mlme_mcgrp.id, gfp);
7867 genlmsg_cancel(msg, hdr);
7871 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7872 struct ieee80211_channel *channel_before,
7873 struct ieee80211_channel *channel_after)
7875 struct sk_buff *msg;
7877 struct nlattr *nl_freq;
7879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7883 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7890 * Since we are applying the beacon hint to a wiphy we know its
7891 * wiphy_idx is valid
7893 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7894 goto nla_put_failure;
7897 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7899 goto nla_put_failure;
7900 if (nl80211_msg_put_channel(msg, channel_before))
7901 goto nla_put_failure;
7902 nla_nest_end(msg, nl_freq);
7905 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7907 goto nla_put_failure;
7908 if (nl80211_msg_put_channel(msg, channel_after))
7909 goto nla_put_failure;
7910 nla_nest_end(msg, nl_freq);
7912 genlmsg_end(msg, hdr);
7915 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7922 genlmsg_cancel(msg, hdr);
7926 static void nl80211_send_remain_on_chan_event(
7927 int cmd, struct cfg80211_registered_device *rdev,
7928 struct net_device *netdev, u64 cookie,
7929 struct ieee80211_channel *chan,
7930 enum nl80211_channel_type channel_type,
7931 unsigned int duration, gfp_t gfp)
7933 struct sk_buff *msg;
7936 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7940 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7946 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7947 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7948 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7949 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7950 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7951 goto nla_put_failure;
7953 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7954 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7955 goto nla_put_failure;
7957 genlmsg_end(msg, hdr);
7959 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7960 nl80211_mlme_mcgrp.id, gfp);
7964 genlmsg_cancel(msg, hdr);
7968 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7969 struct net_device *netdev, u64 cookie,
7970 struct ieee80211_channel *chan,
7971 enum nl80211_channel_type channel_type,
7972 unsigned int duration, gfp_t gfp)
7974 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7975 rdev, netdev, cookie, chan,
7976 channel_type, duration, gfp);
7979 void nl80211_send_remain_on_channel_cancel(
7980 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7981 u64 cookie, struct ieee80211_channel *chan,
7982 enum nl80211_channel_type channel_type, gfp_t gfp)
7984 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7985 rdev, netdev, cookie, chan,
7986 channel_type, 0, gfp);
7989 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7990 struct net_device *dev, const u8 *mac_addr,
7991 struct station_info *sinfo, gfp_t gfp)
7993 struct sk_buff *msg;
7995 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7999 if (nl80211_send_station(msg, 0, 0, 0,
8000 rdev, dev, mac_addr, sinfo) < 0) {
8005 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8006 nl80211_mlme_mcgrp.id, gfp);
8009 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8010 struct net_device *dev, const u8 *mac_addr,
8013 struct sk_buff *msg;
8016 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8020 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8026 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8027 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8028 goto nla_put_failure;
8030 genlmsg_end(msg, hdr);
8032 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8033 nl80211_mlme_mcgrp.id, gfp);
8037 genlmsg_cancel(msg, hdr);
8041 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8042 const u8 *addr, gfp_t gfp)
8044 struct wireless_dev *wdev = dev->ieee80211_ptr;
8045 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8046 struct sk_buff *msg;
8049 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8054 msg = nlmsg_new(100, gfp);
8058 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8064 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8065 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8066 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8067 goto nla_put_failure;
8069 err = genlmsg_end(msg, hdr);
8075 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8079 genlmsg_cancel(msg, hdr);
8084 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8086 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8090 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8091 const u8 *addr, gfp_t gfp)
8093 return __nl80211_unexpected_frame(dev,
8094 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8098 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8099 struct net_device *netdev, u32 nlpid,
8100 int freq, int sig_dbm,
8101 const u8 *buf, size_t len, gfp_t gfp)
8103 struct sk_buff *msg;
8106 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8110 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8116 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8117 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8118 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8120 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8121 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8122 goto nla_put_failure;
8124 genlmsg_end(msg, hdr);
8126 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8129 genlmsg_cancel(msg, hdr);
8134 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8135 struct net_device *netdev, u64 cookie,
8136 const u8 *buf, size_t len, bool ack,
8139 struct sk_buff *msg;
8142 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8146 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8152 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8153 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8154 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8155 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8156 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8157 goto nla_put_failure;
8159 genlmsg_end(msg, hdr);
8161 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8165 genlmsg_cancel(msg, hdr);
8170 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8171 struct net_device *netdev,
8172 enum nl80211_cqm_rssi_threshold_event rssi_event,
8175 struct sk_buff *msg;
8176 struct nlattr *pinfoattr;
8179 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8183 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8189 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8190 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8191 goto nla_put_failure;
8193 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8195 goto nla_put_failure;
8197 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8199 goto nla_put_failure;
8201 nla_nest_end(msg, pinfoattr);
8203 genlmsg_end(msg, hdr);
8205 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8206 nl80211_mlme_mcgrp.id, gfp);
8210 genlmsg_cancel(msg, hdr);
8214 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8215 struct net_device *netdev, const u8 *bssid,
8216 const u8 *replay_ctr, gfp_t gfp)
8218 struct sk_buff *msg;
8219 struct nlattr *rekey_attr;
8222 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8226 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8232 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8233 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8234 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8235 goto nla_put_failure;
8237 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8239 goto nla_put_failure;
8241 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8242 NL80211_REPLAY_CTR_LEN, replay_ctr))
8243 goto nla_put_failure;
8245 nla_nest_end(msg, rekey_attr);
8247 genlmsg_end(msg, hdr);
8249 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8250 nl80211_mlme_mcgrp.id, gfp);
8254 genlmsg_cancel(msg, hdr);
8258 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8259 struct net_device *netdev, int index,
8260 const u8 *bssid, bool preauth, gfp_t gfp)
8262 struct sk_buff *msg;
8263 struct nlattr *attr;
8266 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8270 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8277 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8278 goto nla_put_failure;
8280 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8282 goto nla_put_failure;
8284 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8285 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8287 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8288 goto nla_put_failure;
8290 nla_nest_end(msg, attr);
8292 genlmsg_end(msg, hdr);
8294 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8295 nl80211_mlme_mcgrp.id, gfp);
8299 genlmsg_cancel(msg, hdr);
8303 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8304 struct net_device *netdev, int freq,
8305 enum nl80211_channel_type type, gfp_t gfp)
8307 struct sk_buff *msg;
8310 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8314 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8320 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8321 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8322 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8323 goto nla_put_failure;
8325 genlmsg_end(msg, hdr);
8327 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8328 nl80211_mlme_mcgrp.id, gfp);
8332 genlmsg_cancel(msg, hdr);
8337 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8338 struct net_device *netdev, const u8 *peer,
8339 u32 num_packets, gfp_t gfp)
8341 struct sk_buff *msg;
8342 struct nlattr *pinfoattr;
8345 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8349 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8356 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8357 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8358 goto nla_put_failure;
8360 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8362 goto nla_put_failure;
8364 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8365 goto nla_put_failure;
8367 nla_nest_end(msg, pinfoattr);
8369 genlmsg_end(msg, hdr);
8371 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8372 nl80211_mlme_mcgrp.id, gfp);
8376 genlmsg_cancel(msg, hdr);
8380 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8381 u64 cookie, bool acked, gfp_t gfp)
8383 struct wireless_dev *wdev = dev->ieee80211_ptr;
8384 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8385 struct sk_buff *msg;
8389 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8393 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8400 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8401 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8402 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8403 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8404 goto nla_put_failure;
8406 err = genlmsg_end(msg, hdr);
8412 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8413 nl80211_mlme_mcgrp.id, gfp);
8417 genlmsg_cancel(msg, hdr);
8420 EXPORT_SYMBOL(cfg80211_probe_status);
8422 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8423 const u8 *frame, size_t len,
8424 int freq, int sig_dbm, gfp_t gfp)
8426 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8427 struct sk_buff *msg;
8429 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8434 msg = nlmsg_new(len + 100, gfp);
8438 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8444 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8446 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8448 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8449 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8450 goto nla_put_failure;
8452 genlmsg_end(msg, hdr);
8454 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8458 genlmsg_cancel(msg, hdr);
8461 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8463 static int nl80211_netlink_notify(struct notifier_block * nb,
8464 unsigned long state,
8467 struct netlink_notify *notify = _notify;
8468 struct cfg80211_registered_device *rdev;
8469 struct wireless_dev *wdev;
8471 if (state != NETLINK_URELEASE)
8476 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8477 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8478 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8479 if (rdev->ap_beacons_nlpid == notify->pid)
8480 rdev->ap_beacons_nlpid = 0;
8488 static struct notifier_block nl80211_netlink_notifier = {
8489 .notifier_call = nl80211_netlink_notify,
8492 /* initialisation/exit functions */
8494 int nl80211_init(void)
8498 err = genl_register_family_with_ops(&nl80211_fam,
8499 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8503 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8507 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8511 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8515 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8519 #ifdef CONFIG_NL80211_TESTMODE
8520 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8525 err = netlink_register_notifier(&nl80211_netlink_notifier);
8531 genl_unregister_family(&nl80211_fam);
8535 void nl80211_exit(void)
8537 netlink_unregister_notifier(&nl80211_netlink_notifier);
8538 genl_unregister_family(&nl80211_fam);