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 },
345 /* ifidx get helper */
346 static int nl80211_get_ifidx(struct netlink_callback *cb)
350 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
351 nl80211_fam.attrbuf, nl80211_fam.maxattr,
356 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
359 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
365 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
366 struct netlink_callback *cb,
367 struct cfg80211_registered_device **rdev,
368 struct net_device **dev)
370 int ifidx = cb->args[0];
374 ifidx = nl80211_get_ifidx(cb);
382 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
388 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
390 err = PTR_ERR(*rdev);
400 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
402 cfg80211_unlock_rdev(rdev);
407 static bool is_valid_ie_attr(const struct nlattr *attr)
415 pos = nla_data(attr);
436 /* message building helper */
437 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
440 /* since there is no private header just add the generic one */
441 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
444 static int nl80211_msg_put_channel(struct sk_buff *msg,
445 struct ieee80211_channel *chan)
447 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
449 goto nla_put_failure;
451 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
452 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
453 goto nla_put_failure;
454 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
455 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
456 goto nla_put_failure;
457 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
458 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
459 goto nla_put_failure;
460 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
461 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
462 goto nla_put_failure;
464 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
465 DBM_TO_MBM(chan->max_power)))
466 goto nla_put_failure;
474 /* netlink command implementations */
481 bool def_uni, def_multi;
484 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
486 struct nlattr *tb[NL80211_KEY_MAX + 1];
487 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
492 k->def = !!tb[NL80211_KEY_DEFAULT];
493 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
502 if (tb[NL80211_KEY_IDX])
503 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
505 if (tb[NL80211_KEY_DATA]) {
506 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
507 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
510 if (tb[NL80211_KEY_SEQ]) {
511 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
512 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
515 if (tb[NL80211_KEY_CIPHER])
516 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
518 if (tb[NL80211_KEY_TYPE]) {
519 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
520 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
524 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
525 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
526 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
527 tb[NL80211_KEY_DEFAULT_TYPES],
528 nl80211_key_default_policy);
532 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
533 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
539 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
541 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
542 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
543 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
546 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
547 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
548 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
551 if (info->attrs[NL80211_ATTR_KEY_IDX])
552 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
554 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
555 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
557 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
558 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
567 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
568 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
569 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
573 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
574 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
575 int err = nla_parse_nested(
576 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
577 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
578 nl80211_key_default_policy);
582 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
583 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
589 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
593 memset(k, 0, sizeof(*k));
597 if (info->attrs[NL80211_ATTR_KEY])
598 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
600 err = nl80211_parse_key_old(info, k);
605 if (k->def && k->defmgmt)
609 if (k->def_uni || !k->def_multi)
615 if (k->idx < 4 || k->idx > 5)
618 if (k->idx < 0 || k->idx > 3)
621 if (k->idx < 0 || k->idx > 5)
629 static struct cfg80211_cached_keys *
630 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
633 struct key_parse parse;
635 struct cfg80211_cached_keys *result;
636 int rem, err, def = 0;
638 result = kzalloc(sizeof(*result), GFP_KERNEL);
640 return ERR_PTR(-ENOMEM);
643 result->defmgmt = -1;
645 nla_for_each_nested(key, keys, rem) {
646 memset(&parse, 0, sizeof(parse));
649 err = nl80211_parse_key_new(key, &parse);
655 if (parse.idx < 0 || parse.idx > 4)
661 result->def = parse.idx;
662 if (!parse.def_uni || !parse.def_multi)
664 } else if (parse.defmgmt)
666 err = cfg80211_validate_key_settings(rdev, &parse.p,
667 parse.idx, false, NULL);
670 result->params[parse.idx].cipher = parse.p.cipher;
671 result->params[parse.idx].key_len = parse.p.key_len;
672 result->params[parse.idx].key = result->data[parse.idx];
673 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
682 static int nl80211_key_allowed(struct wireless_dev *wdev)
684 ASSERT_WDEV_LOCK(wdev);
686 switch (wdev->iftype) {
687 case NL80211_IFTYPE_AP:
688 case NL80211_IFTYPE_AP_VLAN:
689 case NL80211_IFTYPE_P2P_GO:
690 case NL80211_IFTYPE_MESH_POINT:
692 case NL80211_IFTYPE_ADHOC:
693 if (!wdev->current_bss)
696 case NL80211_IFTYPE_STATION:
697 case NL80211_IFTYPE_P2P_CLIENT:
698 if (wdev->sme_state != CFG80211_SME_CONNECTED)
708 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
710 struct nlattr *nl_modes = nla_nest_start(msg, attr);
714 goto nla_put_failure;
718 if ((ifmodes & 1) && nla_put_flag(msg, i))
719 goto nla_put_failure;
724 nla_nest_end(msg, nl_modes);
731 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
734 struct nlattr *nl_combis;
737 nl_combis = nla_nest_start(msg,
738 NL80211_ATTR_INTERFACE_COMBINATIONS);
740 goto nla_put_failure;
742 for (i = 0; i < wiphy->n_iface_combinations; i++) {
743 const struct ieee80211_iface_combination *c;
744 struct nlattr *nl_combi, *nl_limits;
746 c = &wiphy->iface_combinations[i];
748 nl_combi = nla_nest_start(msg, i + 1);
750 goto nla_put_failure;
752 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
754 goto nla_put_failure;
756 for (j = 0; j < c->n_limits; j++) {
757 struct nlattr *nl_limit;
759 nl_limit = nla_nest_start(msg, j + 1);
761 goto nla_put_failure;
762 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
764 goto nla_put_failure;
765 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
767 goto nla_put_failure;
768 nla_nest_end(msg, nl_limit);
771 nla_nest_end(msg, nl_limits);
773 if (c->beacon_int_infra_match &&
774 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
775 goto nla_put_failure;
776 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
777 c->num_different_channels) ||
778 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
780 goto nla_put_failure;
782 nla_nest_end(msg, nl_combi);
785 nla_nest_end(msg, nl_combis);
792 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
793 struct cfg80211_registered_device *dev)
796 struct nlattr *nl_bands, *nl_band;
797 struct nlattr *nl_freqs, *nl_freq;
798 struct nlattr *nl_rates, *nl_rate;
799 struct nlattr *nl_cmds;
800 enum ieee80211_band band;
801 struct ieee80211_channel *chan;
802 struct ieee80211_rate *rate;
804 const struct ieee80211_txrx_stypes *mgmt_stypes =
805 dev->wiphy.mgmt_stypes;
807 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
811 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
812 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
813 nla_put_u32(msg, NL80211_ATTR_GENERATION,
814 cfg80211_rdev_list_generation) ||
815 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
816 dev->wiphy.retry_short) ||
817 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
818 dev->wiphy.retry_long) ||
819 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
820 dev->wiphy.frag_threshold) ||
821 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
822 dev->wiphy.rts_threshold) ||
823 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
824 dev->wiphy.coverage_class) ||
825 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
826 dev->wiphy.max_scan_ssids) ||
827 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
828 dev->wiphy.max_sched_scan_ssids) ||
829 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
830 dev->wiphy.max_scan_ie_len) ||
831 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
832 dev->wiphy.max_sched_scan_ie_len) ||
833 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
834 dev->wiphy.max_match_sets))
835 goto nla_put_failure;
837 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
838 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
839 goto nla_put_failure;
840 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
841 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
842 goto nla_put_failure;
843 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
844 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
845 goto nla_put_failure;
846 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
847 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
848 goto nla_put_failure;
849 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
850 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
851 goto nla_put_failure;
852 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
853 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
854 goto nla_put_failure;
856 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
857 sizeof(u32) * dev->wiphy.n_cipher_suites,
858 dev->wiphy.cipher_suites))
859 goto nla_put_failure;
861 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
862 dev->wiphy.max_num_pmkids))
863 goto nla_put_failure;
865 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
866 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
867 goto nla_put_failure;
869 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
870 dev->wiphy.available_antennas_tx) ||
871 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
872 dev->wiphy.available_antennas_rx))
873 goto nla_put_failure;
875 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
876 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
877 dev->wiphy.probe_resp_offload))
878 goto nla_put_failure;
880 if ((dev->wiphy.available_antennas_tx ||
881 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
882 u32 tx_ant = 0, rx_ant = 0;
884 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
886 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
888 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
890 goto nla_put_failure;
894 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
895 dev->wiphy.interface_modes))
896 goto nla_put_failure;
898 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
900 goto nla_put_failure;
902 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
903 if (!dev->wiphy.bands[band])
906 nl_band = nla_nest_start(msg, band);
908 goto nla_put_failure;
911 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
912 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
913 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
914 &dev->wiphy.bands[band]->ht_cap.mcs) ||
915 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
916 dev->wiphy.bands[band]->ht_cap.cap) ||
917 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
918 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
919 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
920 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
921 goto nla_put_failure;
923 /* add frequencies */
924 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
926 goto nla_put_failure;
928 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
929 nl_freq = nla_nest_start(msg, i);
931 goto nla_put_failure;
933 chan = &dev->wiphy.bands[band]->channels[i];
935 if (nl80211_msg_put_channel(msg, chan))
936 goto nla_put_failure;
938 nla_nest_end(msg, nl_freq);
941 nla_nest_end(msg, nl_freqs);
944 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
946 goto nla_put_failure;
948 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
949 nl_rate = nla_nest_start(msg, i);
951 goto nla_put_failure;
953 rate = &dev->wiphy.bands[band]->bitrates[i];
954 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
956 goto nla_put_failure;
957 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
959 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
960 goto nla_put_failure;
962 nla_nest_end(msg, nl_rate);
965 nla_nest_end(msg, nl_rates);
967 nla_nest_end(msg, nl_band);
969 nla_nest_end(msg, nl_bands);
971 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
973 goto nla_put_failure;
978 if (dev->ops->op) { \
980 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
981 goto nla_put_failure; \
985 CMD(add_virtual_intf, NEW_INTERFACE);
986 CMD(change_virtual_intf, SET_INTERFACE);
987 CMD(add_key, NEW_KEY);
988 CMD(start_ap, START_AP);
989 CMD(add_station, NEW_STATION);
990 CMD(add_mpath, NEW_MPATH);
991 CMD(update_mesh_config, SET_MESH_CONFIG);
992 CMD(change_bss, SET_BSS);
993 CMD(auth, AUTHENTICATE);
994 CMD(assoc, ASSOCIATE);
995 CMD(deauth, DEAUTHENTICATE);
996 CMD(disassoc, DISASSOCIATE);
997 CMD(join_ibss, JOIN_IBSS);
998 CMD(join_mesh, JOIN_MESH);
999 CMD(set_pmksa, SET_PMKSA);
1000 CMD(del_pmksa, DEL_PMKSA);
1001 CMD(flush_pmksa, FLUSH_PMKSA);
1002 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1003 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1004 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1005 CMD(mgmt_tx, FRAME);
1006 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1007 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1009 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1010 goto nla_put_failure;
1012 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1013 dev->ops->join_mesh) {
1015 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1016 goto nla_put_failure;
1018 CMD(set_wds_peer, SET_WDS_PEER);
1019 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1020 CMD(tdls_mgmt, TDLS_MGMT);
1021 CMD(tdls_oper, TDLS_OPER);
1023 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1024 CMD(sched_scan_start, START_SCHED_SCAN);
1025 CMD(probe_client, PROBE_CLIENT);
1026 CMD(set_noack_map, SET_NOACK_MAP);
1027 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1029 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1030 goto nla_put_failure;
1033 #ifdef CONFIG_NL80211_TESTMODE
1034 CMD(testmode_cmd, TESTMODE);
1039 if (dev->ops->connect || dev->ops->auth) {
1041 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1042 goto nla_put_failure;
1045 if (dev->ops->disconnect || dev->ops->deauth) {
1047 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1048 goto nla_put_failure;
1051 nla_nest_end(msg, nl_cmds);
1053 if (dev->ops->remain_on_channel &&
1054 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1055 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1056 dev->wiphy.max_remain_on_channel_duration))
1057 goto nla_put_failure;
1059 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1060 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1061 goto nla_put_failure;
1065 struct nlattr *nl_ftypes, *nl_ifs;
1066 enum nl80211_iftype ift;
1068 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1070 goto nla_put_failure;
1072 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1073 nl_ftypes = nla_nest_start(msg, ift);
1075 goto nla_put_failure;
1077 stypes = mgmt_stypes[ift].tx;
1080 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1081 (i << 4) | IEEE80211_FTYPE_MGMT))
1082 goto nla_put_failure;
1086 nla_nest_end(msg, nl_ftypes);
1089 nla_nest_end(msg, nl_ifs);
1091 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1093 goto nla_put_failure;
1095 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1096 nl_ftypes = nla_nest_start(msg, ift);
1098 goto nla_put_failure;
1100 stypes = mgmt_stypes[ift].rx;
1103 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1104 (i << 4) | IEEE80211_FTYPE_MGMT))
1105 goto nla_put_failure;
1109 nla_nest_end(msg, nl_ftypes);
1111 nla_nest_end(msg, nl_ifs);
1114 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1115 struct nlattr *nl_wowlan;
1117 nl_wowlan = nla_nest_start(msg,
1118 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1120 goto nla_put_failure;
1122 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1123 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1124 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1125 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1126 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1127 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1128 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1129 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1130 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1131 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1132 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1133 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1134 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1135 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1136 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1137 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1138 goto nla_put_failure;
1139 if (dev->wiphy.wowlan.n_patterns) {
1140 struct nl80211_wowlan_pattern_support pat = {
1141 .max_patterns = dev->wiphy.wowlan.n_patterns,
1143 dev->wiphy.wowlan.pattern_min_len,
1145 dev->wiphy.wowlan.pattern_max_len,
1147 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1149 goto nla_put_failure;
1152 nla_nest_end(msg, nl_wowlan);
1155 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1156 dev->wiphy.software_iftypes))
1157 goto nla_put_failure;
1159 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1160 goto nla_put_failure;
1162 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1163 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1164 dev->wiphy.ap_sme_capa))
1165 goto nla_put_failure;
1167 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1168 dev->wiphy.features))
1169 goto nla_put_failure;
1171 if (dev->wiphy.ht_capa_mod_mask &&
1172 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1173 sizeof(*dev->wiphy.ht_capa_mod_mask),
1174 dev->wiphy.ht_capa_mod_mask))
1175 goto nla_put_failure;
1177 return genlmsg_end(msg, hdr);
1180 genlmsg_cancel(msg, hdr);
1184 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1187 int start = cb->args[0];
1188 struct cfg80211_registered_device *dev;
1190 mutex_lock(&cfg80211_mutex);
1191 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1192 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1196 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1197 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1203 mutex_unlock(&cfg80211_mutex);
1210 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1212 struct sk_buff *msg;
1213 struct cfg80211_registered_device *dev = info->user_ptr[0];
1215 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1219 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1224 return genlmsg_reply(msg, info);
1227 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1228 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1229 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1230 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1231 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1232 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1235 static int parse_txq_params(struct nlattr *tb[],
1236 struct ieee80211_txq_params *txq_params)
1238 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1239 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1240 !tb[NL80211_TXQ_ATTR_AIFS])
1243 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1244 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1245 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1246 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1247 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1249 if (txq_params->ac >= NL80211_NUM_ACS)
1255 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1258 * You can only set the channel explicitly for WDS interfaces,
1259 * all others have their channel managed via their respective
1260 * "establish a connection" command (connect, join, ...)
1262 * For AP/GO and mesh mode, the channel can be set with the
1263 * channel userspace API, but is only stored and passed to the
1264 * low-level driver when the AP starts or the mesh is joined.
1265 * This is for backward compatibility, userspace can also give
1266 * the channel in the start-ap or join-mesh commands instead.
1268 * Monitors are special as they are normally slaved to
1269 * whatever else is going on, so they have their own special
1270 * operation to set the monitor channel if possible.
1273 wdev->iftype == NL80211_IFTYPE_AP ||
1274 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1275 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1276 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1279 static bool nl80211_valid_channel_type(struct genl_info *info,
1280 enum nl80211_channel_type *channel_type)
1282 enum nl80211_channel_type tmp;
1284 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1287 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1288 if (tmp != NL80211_CHAN_NO_HT &&
1289 tmp != NL80211_CHAN_HT20 &&
1290 tmp != NL80211_CHAN_HT40PLUS &&
1291 tmp != NL80211_CHAN_HT40MINUS)
1295 *channel_type = tmp;
1300 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1301 struct wireless_dev *wdev,
1302 struct genl_info *info)
1304 struct ieee80211_channel *channel;
1305 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1308 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1311 iftype = wdev->iftype;
1313 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1316 if (!nl80211_can_set_dev_channel(wdev))
1319 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1320 !nl80211_valid_channel_type(info, &channel_type))
1323 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1325 mutex_lock(&rdev->devlist_mtx);
1327 case NL80211_IFTYPE_AP:
1328 case NL80211_IFTYPE_P2P_GO:
1329 if (wdev->beacon_interval) {
1333 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1334 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1340 wdev->preset_chan = channel;
1341 wdev->preset_chantype = channel_type;
1344 case NL80211_IFTYPE_MESH_POINT:
1345 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1347 case NL80211_IFTYPE_MONITOR:
1348 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1353 mutex_unlock(&rdev->devlist_mtx);
1358 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1361 struct net_device *netdev = info->user_ptr[1];
1363 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1366 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1368 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1369 struct net_device *dev = info->user_ptr[1];
1370 struct wireless_dev *wdev = dev->ieee80211_ptr;
1373 if (!info->attrs[NL80211_ATTR_MAC])
1376 if (netif_running(dev))
1379 if (!rdev->ops->set_wds_peer)
1382 if (wdev->iftype != NL80211_IFTYPE_WDS)
1385 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1386 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1390 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1392 struct cfg80211_registered_device *rdev;
1393 struct net_device *netdev = NULL;
1394 struct wireless_dev *wdev;
1395 int result = 0, rem_txq_params = 0;
1396 struct nlattr *nl_txq_params;
1398 u8 retry_short = 0, retry_long = 0;
1399 u32 frag_threshold = 0, rts_threshold = 0;
1400 u8 coverage_class = 0;
1403 * Try to find the wiphy and netdev. Normally this
1404 * function shouldn't need the netdev, but this is
1405 * done for backward compatibility -- previously
1406 * setting the channel was done per wiphy, but now
1407 * it is per netdev. Previous userland like hostapd
1408 * also passed a netdev to set_wiphy, so that it is
1409 * possible to let that go to the right netdev!
1411 mutex_lock(&cfg80211_mutex);
1413 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1414 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1416 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1417 if (netdev && netdev->ieee80211_ptr) {
1418 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1419 mutex_lock(&rdev->mtx);
1425 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1428 mutex_unlock(&cfg80211_mutex);
1429 return PTR_ERR(rdev);
1435 mutex_lock(&rdev->mtx);
1436 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1437 wdev = netdev->ieee80211_ptr;
1442 * end workaround code, by now the rdev is available
1443 * and locked, and wdev may or may not be NULL.
1446 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1447 result = cfg80211_dev_rename(
1448 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1450 mutex_unlock(&cfg80211_mutex);
1455 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1456 struct ieee80211_txq_params txq_params;
1457 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1459 if (!rdev->ops->set_txq_params) {
1460 result = -EOPNOTSUPP;
1469 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1470 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1475 if (!netif_running(netdev)) {
1480 nla_for_each_nested(nl_txq_params,
1481 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1483 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1484 nla_data(nl_txq_params),
1485 nla_len(nl_txq_params),
1487 result = parse_txq_params(tb, &txq_params);
1491 result = rdev->ops->set_txq_params(&rdev->wiphy,
1499 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1500 result = __nl80211_set_channel(rdev, wdev, info);
1505 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1506 enum nl80211_tx_power_setting type;
1509 if (!rdev->ops->set_tx_power) {
1510 result = -EOPNOTSUPP;
1514 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1515 type = nla_get_u32(info->attrs[idx]);
1517 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1518 (type != NL80211_TX_POWER_AUTOMATIC)) {
1523 if (type != NL80211_TX_POWER_AUTOMATIC) {
1524 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1525 mbm = nla_get_u32(info->attrs[idx]);
1528 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1533 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1534 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1536 if ((!rdev->wiphy.available_antennas_tx &&
1537 !rdev->wiphy.available_antennas_rx) ||
1538 !rdev->ops->set_antenna) {
1539 result = -EOPNOTSUPP;
1543 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1544 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1546 /* reject antenna configurations which don't match the
1547 * available antenna masks, except for the "all" mask */
1548 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1549 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1554 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1555 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1557 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1564 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1565 retry_short = nla_get_u8(
1566 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1567 if (retry_short == 0) {
1571 changed |= WIPHY_PARAM_RETRY_SHORT;
1574 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1575 retry_long = nla_get_u8(
1576 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1577 if (retry_long == 0) {
1581 changed |= WIPHY_PARAM_RETRY_LONG;
1584 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1585 frag_threshold = nla_get_u32(
1586 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1587 if (frag_threshold < 256) {
1591 if (frag_threshold != (u32) -1) {
1593 * Fragments (apart from the last one) are required to
1594 * have even length. Make the fragmentation code
1595 * simpler by stripping LSB should someone try to use
1596 * odd threshold value.
1598 frag_threshold &= ~0x1;
1600 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1603 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1604 rts_threshold = nla_get_u32(
1605 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1606 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1609 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1610 coverage_class = nla_get_u8(
1611 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1612 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1616 u8 old_retry_short, old_retry_long;
1617 u32 old_frag_threshold, old_rts_threshold;
1618 u8 old_coverage_class;
1620 if (!rdev->ops->set_wiphy_params) {
1621 result = -EOPNOTSUPP;
1625 old_retry_short = rdev->wiphy.retry_short;
1626 old_retry_long = rdev->wiphy.retry_long;
1627 old_frag_threshold = rdev->wiphy.frag_threshold;
1628 old_rts_threshold = rdev->wiphy.rts_threshold;
1629 old_coverage_class = rdev->wiphy.coverage_class;
1631 if (changed & WIPHY_PARAM_RETRY_SHORT)
1632 rdev->wiphy.retry_short = retry_short;
1633 if (changed & WIPHY_PARAM_RETRY_LONG)
1634 rdev->wiphy.retry_long = retry_long;
1635 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1636 rdev->wiphy.frag_threshold = frag_threshold;
1637 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1638 rdev->wiphy.rts_threshold = rts_threshold;
1639 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1640 rdev->wiphy.coverage_class = coverage_class;
1642 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1644 rdev->wiphy.retry_short = old_retry_short;
1645 rdev->wiphy.retry_long = old_retry_long;
1646 rdev->wiphy.frag_threshold = old_frag_threshold;
1647 rdev->wiphy.rts_threshold = old_rts_threshold;
1648 rdev->wiphy.coverage_class = old_coverage_class;
1653 mutex_unlock(&rdev->mtx);
1660 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1661 struct cfg80211_registered_device *rdev,
1662 struct net_device *dev)
1666 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1670 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1671 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1672 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1673 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1674 dev->ieee80211_ptr->iftype) ||
1675 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1676 rdev->devlist_generation ^
1677 (cfg80211_rdev_list_generation << 2)))
1678 goto nla_put_failure;
1680 if (rdev->ops->get_channel) {
1681 struct ieee80211_channel *chan;
1682 enum nl80211_channel_type channel_type;
1684 chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type);
1686 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1687 chan->center_freq) ||
1688 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1690 goto nla_put_failure;
1693 return genlmsg_end(msg, hdr);
1696 genlmsg_cancel(msg, hdr);
1700 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1704 int wp_start = cb->args[0];
1705 int if_start = cb->args[1];
1706 struct cfg80211_registered_device *rdev;
1707 struct wireless_dev *wdev;
1709 mutex_lock(&cfg80211_mutex);
1710 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1711 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1713 if (wp_idx < wp_start) {
1719 mutex_lock(&rdev->devlist_mtx);
1720 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1721 if (if_idx < if_start) {
1725 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1726 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1727 rdev, wdev->netdev) < 0) {
1728 mutex_unlock(&rdev->devlist_mtx);
1733 mutex_unlock(&rdev->devlist_mtx);
1738 mutex_unlock(&cfg80211_mutex);
1740 cb->args[0] = wp_idx;
1741 cb->args[1] = if_idx;
1746 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1748 struct sk_buff *msg;
1749 struct cfg80211_registered_device *dev = info->user_ptr[0];
1750 struct net_device *netdev = info->user_ptr[1];
1752 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1756 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1762 return genlmsg_reply(msg, info);
1765 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1766 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1767 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1768 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1769 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1770 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1773 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1775 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1783 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1784 nla, mntr_flags_policy))
1787 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1789 *mntrflags |= (1<<flag);
1794 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1795 struct net_device *netdev, u8 use_4addr,
1796 enum nl80211_iftype iftype)
1799 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1805 case NL80211_IFTYPE_AP_VLAN:
1806 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1809 case NL80211_IFTYPE_STATION:
1810 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1820 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1823 struct vif_params params;
1825 enum nl80211_iftype otype, ntype;
1826 struct net_device *dev = info->user_ptr[1];
1827 u32 _flags, *flags = NULL;
1828 bool change = false;
1830 memset(¶ms, 0, sizeof(params));
1832 otype = ntype = dev->ieee80211_ptr->iftype;
1834 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1835 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1838 if (ntype > NL80211_IFTYPE_MAX)
1842 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1843 struct wireless_dev *wdev = dev->ieee80211_ptr;
1845 if (ntype != NL80211_IFTYPE_MESH_POINT)
1847 if (netif_running(dev))
1851 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1852 IEEE80211_MAX_MESH_ID_LEN);
1853 wdev->mesh_id_up_len =
1854 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1855 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1856 wdev->mesh_id_up_len);
1860 if (info->attrs[NL80211_ATTR_4ADDR]) {
1861 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1863 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1867 params.use_4addr = -1;
1870 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1871 if (ntype != NL80211_IFTYPE_MONITOR)
1873 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1883 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1887 if (!err && params.use_4addr != -1)
1888 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1893 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1896 struct vif_params params;
1897 struct net_device *dev;
1899 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1902 memset(¶ms, 0, sizeof(params));
1904 if (!info->attrs[NL80211_ATTR_IFNAME])
1907 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1908 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1909 if (type > NL80211_IFTYPE_MAX)
1913 if (!rdev->ops->add_virtual_intf ||
1914 !(rdev->wiphy.interface_modes & (1 << type)))
1917 if (info->attrs[NL80211_ATTR_4ADDR]) {
1918 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1919 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1924 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1925 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1927 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1928 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1929 type, err ? NULL : &flags, ¶ms);
1931 return PTR_ERR(dev);
1933 if (type == NL80211_IFTYPE_MESH_POINT &&
1934 info->attrs[NL80211_ATTR_MESH_ID]) {
1935 struct wireless_dev *wdev = dev->ieee80211_ptr;
1938 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1939 IEEE80211_MAX_MESH_ID_LEN);
1940 wdev->mesh_id_up_len =
1941 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1942 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1943 wdev->mesh_id_up_len);
1950 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1953 struct net_device *dev = info->user_ptr[1];
1955 if (!rdev->ops->del_virtual_intf)
1958 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1961 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1964 struct net_device *dev = info->user_ptr[1];
1967 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1970 if (!rdev->ops->set_noack_map)
1973 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1975 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1978 struct get_key_cookie {
1979 struct sk_buff *msg;
1984 static void get_key_callback(void *c, struct key_params *params)
1987 struct get_key_cookie *cookie = c;
1990 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
1991 params->key_len, params->key)) ||
1993 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
1994 params->seq_len, params->seq)) ||
1996 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1998 goto nla_put_failure;
2000 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2002 goto nla_put_failure;
2005 nla_put(cookie->msg, NL80211_KEY_DATA,
2006 params->key_len, params->key)) ||
2008 nla_put(cookie->msg, NL80211_KEY_SEQ,
2009 params->seq_len, params->seq)) ||
2011 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2013 goto nla_put_failure;
2015 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2016 goto nla_put_failure;
2018 nla_nest_end(cookie->msg, key);
2025 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2029 struct net_device *dev = info->user_ptr[1];
2031 const u8 *mac_addr = NULL;
2033 struct get_key_cookie cookie = {
2037 struct sk_buff *msg;
2039 if (info->attrs[NL80211_ATTR_KEY_IDX])
2040 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2045 if (info->attrs[NL80211_ATTR_MAC])
2046 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2048 pairwise = !!mac_addr;
2049 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2050 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2051 if (kt >= NUM_NL80211_KEYTYPES)
2053 if (kt != NL80211_KEYTYPE_GROUP &&
2054 kt != NL80211_KEYTYPE_PAIRWISE)
2056 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2059 if (!rdev->ops->get_key)
2062 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2066 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2067 NL80211_CMD_NEW_KEY);
2069 return PTR_ERR(hdr);
2072 cookie.idx = key_idx;
2074 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2075 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2076 goto nla_put_failure;
2078 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2079 goto nla_put_failure;
2081 if (pairwise && mac_addr &&
2082 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2085 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2086 mac_addr, &cookie, get_key_callback);
2092 goto nla_put_failure;
2094 genlmsg_end(msg, hdr);
2095 return genlmsg_reply(msg, info);
2104 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2107 struct key_parse key;
2109 struct net_device *dev = info->user_ptr[1];
2111 err = nl80211_parse_key(info, &key);
2118 /* only support setting default key */
2119 if (!key.def && !key.defmgmt)
2122 wdev_lock(dev->ieee80211_ptr);
2125 if (!rdev->ops->set_default_key) {
2130 err = nl80211_key_allowed(dev->ieee80211_ptr);
2134 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2135 key.def_uni, key.def_multi);
2140 #ifdef CONFIG_CFG80211_WEXT
2141 dev->ieee80211_ptr->wext.default_key = key.idx;
2144 if (key.def_uni || !key.def_multi) {
2149 if (!rdev->ops->set_default_mgmt_key) {
2154 err = nl80211_key_allowed(dev->ieee80211_ptr);
2158 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2163 #ifdef CONFIG_CFG80211_WEXT
2164 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2169 wdev_unlock(dev->ieee80211_ptr);
2174 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2178 struct net_device *dev = info->user_ptr[1];
2179 struct key_parse key;
2180 const u8 *mac_addr = NULL;
2182 err = nl80211_parse_key(info, &key);
2189 if (info->attrs[NL80211_ATTR_MAC])
2190 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2192 if (key.type == -1) {
2194 key.type = NL80211_KEYTYPE_PAIRWISE;
2196 key.type = NL80211_KEYTYPE_GROUP;
2200 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2201 key.type != NL80211_KEYTYPE_GROUP)
2204 if (!rdev->ops->add_key)
2207 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2208 key.type == NL80211_KEYTYPE_PAIRWISE,
2212 wdev_lock(dev->ieee80211_ptr);
2213 err = nl80211_key_allowed(dev->ieee80211_ptr);
2215 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2216 key.type == NL80211_KEYTYPE_PAIRWISE,
2218 wdev_unlock(dev->ieee80211_ptr);
2223 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2227 struct net_device *dev = info->user_ptr[1];
2228 u8 *mac_addr = NULL;
2229 struct key_parse key;
2231 err = nl80211_parse_key(info, &key);
2235 if (info->attrs[NL80211_ATTR_MAC])
2236 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2238 if (key.type == -1) {
2240 key.type = NL80211_KEYTYPE_PAIRWISE;
2242 key.type = NL80211_KEYTYPE_GROUP;
2246 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2247 key.type != NL80211_KEYTYPE_GROUP)
2250 if (!rdev->ops->del_key)
2253 wdev_lock(dev->ieee80211_ptr);
2254 err = nl80211_key_allowed(dev->ieee80211_ptr);
2256 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2257 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2261 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2262 key.type == NL80211_KEYTYPE_PAIRWISE,
2265 #ifdef CONFIG_CFG80211_WEXT
2267 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2268 dev->ieee80211_ptr->wext.default_key = -1;
2269 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2270 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2273 wdev_unlock(dev->ieee80211_ptr);
2278 static int nl80211_parse_beacon(struct genl_info *info,
2279 struct cfg80211_beacon_data *bcn)
2281 bool haveinfo = false;
2283 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2284 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2285 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2286 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2289 memset(bcn, 0, sizeof(*bcn));
2291 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2292 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2293 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2299 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2300 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2302 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2309 if (info->attrs[NL80211_ATTR_IE]) {
2310 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2311 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2314 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2315 bcn->proberesp_ies =
2316 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2317 bcn->proberesp_ies_len =
2318 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2321 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2322 bcn->assocresp_ies =
2323 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2324 bcn->assocresp_ies_len =
2325 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2328 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2330 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2331 bcn->probe_resp_len =
2332 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2338 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2341 struct net_device *dev = info->user_ptr[1];
2342 struct wireless_dev *wdev = dev->ieee80211_ptr;
2343 struct cfg80211_ap_settings params;
2346 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2347 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2350 if (!rdev->ops->start_ap)
2353 if (wdev->beacon_interval)
2356 memset(¶ms, 0, sizeof(params));
2358 /* these are required for START_AP */
2359 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2360 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2361 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2364 err = nl80211_parse_beacon(info, ¶ms.beacon);
2368 params.beacon_interval =
2369 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2370 params.dtim_period =
2371 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2373 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2378 * In theory, some of these attributes should be required here
2379 * but since they were not used when the command was originally
2380 * added, keep them optional for old user space programs to let
2381 * them continue to work with drivers that do not need the
2382 * additional information -- drivers must check!
2384 if (info->attrs[NL80211_ATTR_SSID]) {
2385 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2387 nla_len(info->attrs[NL80211_ATTR_SSID]);
2388 if (params.ssid_len == 0 ||
2389 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2393 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2394 params.hidden_ssid = nla_get_u32(
2395 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2396 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2397 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2398 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2402 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2404 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2405 params.auth_type = nla_get_u32(
2406 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2407 if (!nl80211_valid_auth_type(params.auth_type))
2410 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2412 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2413 NL80211_MAX_NR_CIPHER_SUITES);
2417 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2418 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2420 params.inactivity_timeout = nla_get_u16(
2421 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2424 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2425 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2427 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2428 !nl80211_valid_channel_type(info, &channel_type))
2431 params.channel = rdev_freq_to_chan(rdev,
2432 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2434 if (!params.channel)
2436 params.channel_type = channel_type;
2437 } else if (wdev->preset_chan) {
2438 params.channel = wdev->preset_chan;
2439 params.channel_type = wdev->preset_chantype;
2443 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2444 params.channel_type))
2447 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2449 wdev->beacon_interval = params.beacon_interval;
2453 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2456 struct net_device *dev = info->user_ptr[1];
2457 struct wireless_dev *wdev = dev->ieee80211_ptr;
2458 struct cfg80211_beacon_data params;
2461 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2462 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2465 if (!rdev->ops->change_beacon)
2468 if (!wdev->beacon_interval)
2471 err = nl80211_parse_beacon(info, ¶ms);
2475 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2478 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2481 struct net_device *dev = info->user_ptr[1];
2482 struct wireless_dev *wdev = dev->ieee80211_ptr;
2485 if (!rdev->ops->stop_ap)
2488 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2489 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2492 if (!wdev->beacon_interval)
2495 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
2497 wdev->beacon_interval = 0;
2501 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2502 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2503 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2504 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2505 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2506 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2507 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2510 static int parse_station_flags(struct genl_info *info,
2511 enum nl80211_iftype iftype,
2512 struct station_parameters *params)
2514 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2519 * Try parsing the new attribute first so userspace
2520 * can specify both for older kernels.
2522 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2524 struct nl80211_sta_flag_update *sta_flags;
2526 sta_flags = nla_data(nla);
2527 params->sta_flags_mask = sta_flags->mask;
2528 params->sta_flags_set = sta_flags->set;
2529 if ((params->sta_flags_mask |
2530 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2535 /* if present, parse the old attribute */
2537 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2541 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2542 nla, sta_flags_policy))
2546 * Only allow certain flags for interface types so that
2547 * other attributes are silently ignored. Remember that
2548 * this is backward compatibility code with old userspace
2549 * and shouldn't be hit in other cases anyway.
2552 case NL80211_IFTYPE_AP:
2553 case NL80211_IFTYPE_AP_VLAN:
2554 case NL80211_IFTYPE_P2P_GO:
2555 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2556 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2557 BIT(NL80211_STA_FLAG_WME) |
2558 BIT(NL80211_STA_FLAG_MFP);
2560 case NL80211_IFTYPE_P2P_CLIENT:
2561 case NL80211_IFTYPE_STATION:
2562 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2563 BIT(NL80211_STA_FLAG_TDLS_PEER);
2565 case NL80211_IFTYPE_MESH_POINT:
2566 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2567 BIT(NL80211_STA_FLAG_MFP) |
2568 BIT(NL80211_STA_FLAG_AUTHORIZED);
2573 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2575 params->sta_flags_set |= (1<<flag);
2577 /* no longer support new API additions in old API */
2578 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2586 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2589 struct nlattr *rate;
2592 rate = nla_nest_start(msg, attr);
2594 goto nla_put_failure;
2596 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2597 bitrate = cfg80211_calculate_bitrate(info);
2599 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2600 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2601 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2602 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2603 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2604 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2605 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2606 goto nla_put_failure;
2608 nla_nest_end(msg, rate);
2615 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2617 struct cfg80211_registered_device *rdev,
2618 struct net_device *dev,
2619 const u8 *mac_addr, struct station_info *sinfo)
2622 struct nlattr *sinfoattr, *bss_param;
2624 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2628 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2629 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2630 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2631 goto nla_put_failure;
2633 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2635 goto nla_put_failure;
2636 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2637 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2638 sinfo->connected_time))
2639 goto nla_put_failure;
2640 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2641 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2642 sinfo->inactive_time))
2643 goto nla_put_failure;
2644 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2645 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2647 goto nla_put_failure;
2648 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2649 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2651 goto nla_put_failure;
2652 if ((sinfo->filled & STATION_INFO_LLID) &&
2653 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2654 goto nla_put_failure;
2655 if ((sinfo->filled & STATION_INFO_PLID) &&
2656 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2657 goto nla_put_failure;
2658 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2659 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2660 sinfo->plink_state))
2661 goto nla_put_failure;
2662 switch (rdev->wiphy.signal_type) {
2663 case CFG80211_SIGNAL_TYPE_MBM:
2664 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2665 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2667 goto nla_put_failure;
2668 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2669 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2671 goto nla_put_failure;
2676 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2677 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2678 NL80211_STA_INFO_TX_BITRATE))
2679 goto nla_put_failure;
2681 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2682 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2683 NL80211_STA_INFO_RX_BITRATE))
2684 goto nla_put_failure;
2686 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2687 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2689 goto nla_put_failure;
2690 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2691 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2693 goto nla_put_failure;
2694 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2695 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2697 goto nla_put_failure;
2698 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2699 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2701 goto nla_put_failure;
2702 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2703 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2704 sinfo->beacon_loss_count))
2705 goto nla_put_failure;
2706 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2707 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2709 goto nla_put_failure;
2711 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2712 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2713 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2714 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2715 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2716 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2717 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2718 sinfo->bss_param.dtim_period) ||
2719 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2720 sinfo->bss_param.beacon_interval))
2721 goto nla_put_failure;
2723 nla_nest_end(msg, bss_param);
2725 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2726 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2727 sizeof(struct nl80211_sta_flag_update),
2729 goto nla_put_failure;
2730 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2731 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2733 goto nla_put_failure;
2734 nla_nest_end(msg, sinfoattr);
2736 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2737 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2738 sinfo->assoc_req_ies))
2739 goto nla_put_failure;
2741 return genlmsg_end(msg, hdr);
2744 genlmsg_cancel(msg, hdr);
2748 static int nl80211_dump_station(struct sk_buff *skb,
2749 struct netlink_callback *cb)
2751 struct station_info sinfo;
2752 struct cfg80211_registered_device *dev;
2753 struct net_device *netdev;
2754 u8 mac_addr[ETH_ALEN];
2755 int sta_idx = cb->args[1];
2758 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2762 if (!dev->ops->dump_station) {
2768 memset(&sinfo, 0, sizeof(sinfo));
2769 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2776 if (nl80211_send_station(skb,
2777 NETLINK_CB(cb->skb).pid,
2778 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2779 dev, netdev, mac_addr,
2788 cb->args[1] = sta_idx;
2791 nl80211_finish_netdev_dump(dev);
2796 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2798 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2799 struct net_device *dev = info->user_ptr[1];
2800 struct station_info sinfo;
2801 struct sk_buff *msg;
2802 u8 *mac_addr = NULL;
2805 memset(&sinfo, 0, sizeof(sinfo));
2807 if (!info->attrs[NL80211_ATTR_MAC])
2810 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2812 if (!rdev->ops->get_station)
2815 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2819 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2823 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2824 rdev, dev, mac_addr, &sinfo) < 0) {
2829 return genlmsg_reply(msg, info);
2833 * Get vlan interface making sure it is running and on the right wiphy.
2835 static struct net_device *get_vlan(struct genl_info *info,
2836 struct cfg80211_registered_device *rdev)
2838 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2839 struct net_device *v;
2845 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2847 return ERR_PTR(-ENODEV);
2849 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2854 if (!netif_running(v)) {
2862 return ERR_PTR(ret);
2865 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2869 struct net_device *dev = info->user_ptr[1];
2870 struct station_parameters params;
2871 u8 *mac_addr = NULL;
2873 memset(¶ms, 0, sizeof(params));
2875 params.listen_interval = -1;
2876 params.plink_state = -1;
2878 if (info->attrs[NL80211_ATTR_STA_AID])
2881 if (!info->attrs[NL80211_ATTR_MAC])
2884 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2886 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2887 params.supported_rates =
2888 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2889 params.supported_rates_len =
2890 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2893 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2894 params.listen_interval =
2895 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2897 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2899 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2901 if (!rdev->ops->change_station)
2904 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2907 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2908 params.plink_action =
2909 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2911 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2912 params.plink_state =
2913 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2915 switch (dev->ieee80211_ptr->iftype) {
2916 case NL80211_IFTYPE_AP:
2917 case NL80211_IFTYPE_AP_VLAN:
2918 case NL80211_IFTYPE_P2P_GO:
2919 /* disallow mesh-specific things */
2920 if (params.plink_action)
2923 /* TDLS can't be set, ... */
2924 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2927 * ... but don't bother the driver with it. This works around
2928 * a hostapd/wpa_supplicant issue -- it always includes the
2929 * TLDS_PEER flag in the mask even for AP mode.
2931 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2933 /* accept only the listed bits */
2934 if (params.sta_flags_mask &
2935 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2936 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2937 BIT(NL80211_STA_FLAG_WME) |
2938 BIT(NL80211_STA_FLAG_MFP)))
2941 /* must be last in here for error handling */
2942 params.vlan = get_vlan(info, rdev);
2943 if (IS_ERR(params.vlan))
2944 return PTR_ERR(params.vlan);
2946 case NL80211_IFTYPE_P2P_CLIENT:
2947 case NL80211_IFTYPE_STATION:
2949 * Don't allow userspace to change the TDLS_PEER flag,
2950 * but silently ignore attempts to change it since we
2951 * don't have state here to verify that it doesn't try
2952 * to change the flag.
2954 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2956 case NL80211_IFTYPE_ADHOC:
2957 /* disallow things sta doesn't support */
2958 if (params.plink_action)
2962 if (params.listen_interval >= 0)
2964 /* reject any changes other than AUTHORIZED */
2965 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2968 case NL80211_IFTYPE_MESH_POINT:
2969 /* disallow things mesh doesn't support */
2974 if (params.listen_interval >= 0)
2977 * No special handling for TDLS here -- the userspace
2978 * mesh code doesn't have this bug.
2980 if (params.sta_flags_mask &
2981 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2982 BIT(NL80211_STA_FLAG_MFP) |
2983 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2990 /* be aware of params.vlan when changing code here */
2992 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2995 dev_put(params.vlan);
3000 static struct nla_policy
3001 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3002 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3003 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3006 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3010 struct net_device *dev = info->user_ptr[1];
3011 struct station_parameters params;
3012 u8 *mac_addr = NULL;
3014 memset(¶ms, 0, sizeof(params));
3016 if (!info->attrs[NL80211_ATTR_MAC])
3019 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3022 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3025 if (!info->attrs[NL80211_ATTR_STA_AID])
3028 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3029 params.supported_rates =
3030 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3031 params.supported_rates_len =
3032 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3033 params.listen_interval =
3034 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3036 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3037 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3040 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3042 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3044 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3045 params.plink_action =
3046 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3048 if (!rdev->ops->add_station)
3051 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3054 switch (dev->ieee80211_ptr->iftype) {
3055 case NL80211_IFTYPE_AP:
3056 case NL80211_IFTYPE_AP_VLAN:
3057 case NL80211_IFTYPE_P2P_GO:
3058 /* parse WME attributes if sta is WME capable */
3059 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3060 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3061 info->attrs[NL80211_ATTR_STA_WME]) {
3062 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3065 nla = info->attrs[NL80211_ATTR_STA_WME];
3066 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3067 nl80211_sta_wme_policy);
3071 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3072 params.uapsd_queues =
3073 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3074 if (params.uapsd_queues &
3075 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3078 if (tb[NL80211_STA_WME_MAX_SP])
3080 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3083 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3086 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3088 /* TDLS peers cannot be added */
3089 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3091 /* but don't bother the driver with it */
3092 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3094 /* must be last in here for error handling */
3095 params.vlan = get_vlan(info, rdev);
3096 if (IS_ERR(params.vlan))
3097 return PTR_ERR(params.vlan);
3099 case NL80211_IFTYPE_MESH_POINT:
3100 /* TDLS peers cannot be added */
3101 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3104 case NL80211_IFTYPE_STATION:
3105 /* Only TDLS peers can be added */
3106 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3108 /* Can only add if TDLS ... */
3109 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3111 /* ... with external setup is supported */
3112 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3119 /* be aware of params.vlan when changing code here */
3121 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3124 dev_put(params.vlan);
3128 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3131 struct net_device *dev = info->user_ptr[1];
3132 u8 *mac_addr = NULL;
3134 if (info->attrs[NL80211_ATTR_MAC])
3135 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3137 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3138 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3139 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3140 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3143 if (!rdev->ops->del_station)
3146 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3149 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3150 int flags, struct net_device *dev,
3151 u8 *dst, u8 *next_hop,
3152 struct mpath_info *pinfo)
3155 struct nlattr *pinfoattr;
3157 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3161 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3162 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3163 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3164 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3165 goto nla_put_failure;
3167 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3169 goto nla_put_failure;
3170 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3171 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3173 goto nla_put_failure;
3174 if (((pinfo->filled & MPATH_INFO_SN) &&
3175 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3176 ((pinfo->filled & MPATH_INFO_METRIC) &&
3177 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3179 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3180 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3182 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3183 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3185 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3186 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3187 pinfo->discovery_timeout)) ||
3188 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3189 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3190 pinfo->discovery_retries)))
3191 goto nla_put_failure;
3193 nla_nest_end(msg, pinfoattr);
3195 return genlmsg_end(msg, hdr);
3198 genlmsg_cancel(msg, hdr);
3202 static int nl80211_dump_mpath(struct sk_buff *skb,
3203 struct netlink_callback *cb)
3205 struct mpath_info pinfo;
3206 struct cfg80211_registered_device *dev;
3207 struct net_device *netdev;
3209 u8 next_hop[ETH_ALEN];
3210 int path_idx = cb->args[1];
3213 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3217 if (!dev->ops->dump_mpath) {
3222 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3228 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3229 dst, next_hop, &pinfo);
3235 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3236 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3237 netdev, dst, next_hop,
3246 cb->args[1] = path_idx;
3249 nl80211_finish_netdev_dump(dev);
3253 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3257 struct net_device *dev = info->user_ptr[1];
3258 struct mpath_info pinfo;
3259 struct sk_buff *msg;
3261 u8 next_hop[ETH_ALEN];
3263 memset(&pinfo, 0, sizeof(pinfo));
3265 if (!info->attrs[NL80211_ATTR_MAC])
3268 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3270 if (!rdev->ops->get_mpath)
3273 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3276 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3280 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3284 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3285 dev, dst, next_hop, &pinfo) < 0) {
3290 return genlmsg_reply(msg, info);
3293 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3296 struct net_device *dev = info->user_ptr[1];
3298 u8 *next_hop = NULL;
3300 if (!info->attrs[NL80211_ATTR_MAC])
3303 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3306 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3307 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3309 if (!rdev->ops->change_mpath)
3312 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3315 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3318 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3321 struct net_device *dev = info->user_ptr[1];
3323 u8 *next_hop = NULL;
3325 if (!info->attrs[NL80211_ATTR_MAC])
3328 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3331 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3332 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3334 if (!rdev->ops->add_mpath)
3337 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3340 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3343 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3346 struct net_device *dev = info->user_ptr[1];
3349 if (info->attrs[NL80211_ATTR_MAC])
3350 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3352 if (!rdev->ops->del_mpath)
3355 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3358 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3361 struct net_device *dev = info->user_ptr[1];
3362 struct bss_parameters params;
3364 memset(¶ms, 0, sizeof(params));
3365 /* default to not changing parameters */
3366 params.use_cts_prot = -1;
3367 params.use_short_preamble = -1;
3368 params.use_short_slot_time = -1;
3369 params.ap_isolate = -1;
3370 params.ht_opmode = -1;
3372 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3373 params.use_cts_prot =
3374 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3375 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3376 params.use_short_preamble =
3377 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3378 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3379 params.use_short_slot_time =
3380 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3381 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3382 params.basic_rates =
3383 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3384 params.basic_rates_len =
3385 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3387 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3388 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3389 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3391 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3393 if (!rdev->ops->change_bss)
3396 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3397 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3400 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3403 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3404 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3405 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3406 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3407 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3408 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3409 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3412 static int parse_reg_rule(struct nlattr *tb[],
3413 struct ieee80211_reg_rule *reg_rule)
3415 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3416 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3418 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3420 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3422 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3424 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3426 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3429 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3431 freq_range->start_freq_khz =
3432 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3433 freq_range->end_freq_khz =
3434 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3435 freq_range->max_bandwidth_khz =
3436 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3438 power_rule->max_eirp =
3439 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3441 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3442 power_rule->max_antenna_gain =
3443 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3448 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3454 * You should only get this when cfg80211 hasn't yet initialized
3455 * completely when built-in to the kernel right between the time
3456 * window between nl80211_init() and regulatory_init(), if that is
3459 mutex_lock(&cfg80211_mutex);
3460 if (unlikely(!cfg80211_regdomain)) {
3461 mutex_unlock(&cfg80211_mutex);
3462 return -EINPROGRESS;
3464 mutex_unlock(&cfg80211_mutex);
3466 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3469 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3471 r = regulatory_hint_user(data);
3476 static int nl80211_get_mesh_config(struct sk_buff *skb,
3477 struct genl_info *info)
3479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3480 struct net_device *dev = info->user_ptr[1];
3481 struct wireless_dev *wdev = dev->ieee80211_ptr;
3482 struct mesh_config cur_params;
3485 struct nlattr *pinfoattr;
3486 struct sk_buff *msg;
3488 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3491 if (!rdev->ops->get_mesh_config)
3495 /* If not connected, get default parameters */
3496 if (!wdev->mesh_id_len)
3497 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3499 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3506 /* Draw up a netlink message to send back */
3507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3510 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3511 NL80211_CMD_GET_MESH_CONFIG);
3514 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3516 goto nla_put_failure;
3517 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3518 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3519 cur_params.dot11MeshRetryTimeout) ||
3520 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3521 cur_params.dot11MeshConfirmTimeout) ||
3522 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3523 cur_params.dot11MeshHoldingTimeout) ||
3524 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3525 cur_params.dot11MeshMaxPeerLinks) ||
3526 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3527 cur_params.dot11MeshMaxRetries) ||
3528 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3529 cur_params.dot11MeshTTL) ||
3530 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3531 cur_params.element_ttl) ||
3532 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3533 cur_params.auto_open_plinks) ||
3534 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3535 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3536 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3537 cur_params.dot11MeshHWMPmaxPREQretries) ||
3538 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3539 cur_params.path_refresh_time) ||
3540 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3541 cur_params.min_discovery_timeout) ||
3542 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3543 cur_params.dot11MeshHWMPactivePathTimeout) ||
3544 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3545 cur_params.dot11MeshHWMPpreqMinInterval) ||
3546 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3547 cur_params.dot11MeshHWMPperrMinInterval) ||
3548 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3549 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3550 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3551 cur_params.dot11MeshHWMPRootMode) ||
3552 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3553 cur_params.dot11MeshHWMPRannInterval) ||
3554 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3555 cur_params.dot11MeshGateAnnouncementProtocol) ||
3556 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3557 cur_params.dot11MeshForwarding) ||
3558 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3559 cur_params.rssi_threshold) ||
3560 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3561 cur_params.ht_opmode) ||
3562 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3563 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3564 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3565 cur_params.dot11MeshHWMProotInterval) ||
3566 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3567 cur_params.dot11MeshHWMPconfirmationInterval))
3568 goto nla_put_failure;
3569 nla_nest_end(msg, pinfoattr);
3570 genlmsg_end(msg, hdr);
3571 return genlmsg_reply(msg, info);
3574 genlmsg_cancel(msg, hdr);
3580 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3581 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3582 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3583 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3584 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3585 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3586 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3587 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3588 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3589 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3590 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3591 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3592 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3593 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3594 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3595 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3596 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3597 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3598 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3599 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3600 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3601 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3602 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3603 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3604 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3605 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3608 static const struct nla_policy
3609 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3610 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3611 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3612 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3613 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3614 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3615 .len = IEEE80211_MAX_DATA_LEN },
3616 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3619 static int nl80211_parse_mesh_config(struct genl_info *info,
3620 struct mesh_config *cfg,
3623 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3626 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3628 if (table[attr_num]) {\
3629 cfg->param = nla_fn(table[attr_num]); \
3630 mask |= (1 << (attr_num - 1)); \
3635 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3637 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3638 info->attrs[NL80211_ATTR_MESH_CONFIG],
3639 nl80211_meshconf_params_policy))
3642 /* This makes sure that there aren't more than 32 mesh config
3643 * parameters (otherwise our bitfield scheme would not work.) */
3644 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3646 /* Fill in the params struct */
3647 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3648 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3650 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3651 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3653 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3654 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3656 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3657 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3659 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3660 mask, NL80211_MESHCONF_MAX_RETRIES,
3662 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3663 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3664 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3665 mask, NL80211_MESHCONF_ELEMENT_TTL,
3667 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3668 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3670 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3671 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3673 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3674 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3676 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3677 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3679 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3680 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3682 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3683 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3685 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3686 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3688 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3689 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3691 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3692 dot11MeshHWMPnetDiameterTraversalTime, mask,
3693 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3696 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3698 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3701 dot11MeshGateAnnouncementProtocol, mask,
3702 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3705 mask, NL80211_MESHCONF_FORWARDING,
3707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3708 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3710 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3711 mask, NL80211_MESHCONF_HT_OPMODE,
3713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3715 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3718 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3721 dot11MeshHWMPconfirmationInterval, mask,
3722 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3729 #undef FILL_IN_MESH_PARAM_IF_SET
3732 static int nl80211_parse_mesh_setup(struct genl_info *info,
3733 struct mesh_setup *setup)
3735 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3737 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3739 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3740 info->attrs[NL80211_ATTR_MESH_SETUP],
3741 nl80211_mesh_setup_params_policy))
3744 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3745 setup->sync_method =
3746 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3747 IEEE80211_SYNC_METHOD_VENDOR :
3748 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3750 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3751 setup->path_sel_proto =
3752 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3753 IEEE80211_PATH_PROTOCOL_VENDOR :
3754 IEEE80211_PATH_PROTOCOL_HWMP;
3756 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3757 setup->path_metric =
3758 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3759 IEEE80211_PATH_METRIC_VENDOR :
3760 IEEE80211_PATH_METRIC_AIRTIME;
3763 if (tb[NL80211_MESH_SETUP_IE]) {
3764 struct nlattr *ieattr =
3765 tb[NL80211_MESH_SETUP_IE];
3766 if (!is_valid_ie_attr(ieattr))
3768 setup->ie = nla_data(ieattr);
3769 setup->ie_len = nla_len(ieattr);
3771 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3772 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3777 static int nl80211_update_mesh_config(struct sk_buff *skb,
3778 struct genl_info *info)
3780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3781 struct net_device *dev = info->user_ptr[1];
3782 struct wireless_dev *wdev = dev->ieee80211_ptr;
3783 struct mesh_config cfg;
3787 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3790 if (!rdev->ops->update_mesh_config)
3793 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3798 if (!wdev->mesh_id_len)
3802 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3810 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3812 struct sk_buff *msg;
3814 struct nlattr *nl_reg_rules;
3818 mutex_lock(&cfg80211_mutex);
3820 if (!cfg80211_regdomain)
3823 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3829 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3830 NL80211_CMD_GET_REG);
3834 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3835 cfg80211_regdomain->alpha2) ||
3836 (cfg80211_regdomain->dfs_region &&
3837 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3838 cfg80211_regdomain->dfs_region)))
3839 goto nla_put_failure;
3841 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3843 goto nla_put_failure;
3845 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3846 struct nlattr *nl_reg_rule;
3847 const struct ieee80211_reg_rule *reg_rule;
3848 const struct ieee80211_freq_range *freq_range;
3849 const struct ieee80211_power_rule *power_rule;
3851 reg_rule = &cfg80211_regdomain->reg_rules[i];
3852 freq_range = ®_rule->freq_range;
3853 power_rule = ®_rule->power_rule;
3855 nl_reg_rule = nla_nest_start(msg, i);
3857 goto nla_put_failure;
3859 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3861 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3862 freq_range->start_freq_khz) ||
3863 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3864 freq_range->end_freq_khz) ||
3865 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3866 freq_range->max_bandwidth_khz) ||
3867 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3868 power_rule->max_antenna_gain) ||
3869 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3870 power_rule->max_eirp))
3871 goto nla_put_failure;
3873 nla_nest_end(msg, nl_reg_rule);
3876 nla_nest_end(msg, nl_reg_rules);
3878 genlmsg_end(msg, hdr);
3879 err = genlmsg_reply(msg, info);
3883 genlmsg_cancel(msg, hdr);
3888 mutex_unlock(&cfg80211_mutex);
3892 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3894 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3895 struct nlattr *nl_reg_rule;
3896 char *alpha2 = NULL;
3897 int rem_reg_rules = 0, r = 0;
3898 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3900 struct ieee80211_regdomain *rd = NULL;
3902 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3905 if (!info->attrs[NL80211_ATTR_REG_RULES])
3908 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3910 if (info->attrs[NL80211_ATTR_DFS_REGION])
3911 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3913 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3916 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3920 mutex_lock(&cfg80211_mutex);
3922 if (!reg_is_valid_request(alpha2)) {
3927 size_of_regd = sizeof(struct ieee80211_regdomain) +
3928 (num_rules * sizeof(struct ieee80211_reg_rule));
3930 rd = kzalloc(size_of_regd, GFP_KERNEL);
3936 rd->n_reg_rules = num_rules;
3937 rd->alpha2[0] = alpha2[0];
3938 rd->alpha2[1] = alpha2[1];
3941 * Disable DFS master mode if the DFS region was
3942 * not supported or known on this kernel.
3944 if (reg_supported_dfs_region(dfs_region))
3945 rd->dfs_region = dfs_region;
3947 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3949 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3950 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3952 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3958 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3964 BUG_ON(rule_idx != num_rules);
3968 mutex_unlock(&cfg80211_mutex);
3973 mutex_unlock(&cfg80211_mutex);
3978 static int validate_scan_freqs(struct nlattr *freqs)
3980 struct nlattr *attr1, *attr2;
3981 int n_channels = 0, tmp1, tmp2;
3983 nla_for_each_nested(attr1, freqs, tmp1) {
3986 * Some hardware has a limited channel list for
3987 * scanning, and it is pretty much nonsensical
3988 * to scan for a channel twice, so disallow that
3989 * and don't require drivers to check that the
3990 * channel list they get isn't longer than what
3991 * they can scan, as long as they can scan all
3992 * the channels they registered at once.
3994 nla_for_each_nested(attr2, freqs, tmp2)
3995 if (attr1 != attr2 &&
3996 nla_get_u32(attr1) == nla_get_u32(attr2))
4003 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4006 struct net_device *dev = info->user_ptr[1];
4007 struct cfg80211_scan_request *request;
4008 struct nlattr *attr;
4009 struct wiphy *wiphy;
4010 int err, tmp, n_ssids = 0, n_channels, i;
4013 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4016 wiphy = &rdev->wiphy;
4018 if (!rdev->ops->scan)
4024 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4025 n_channels = validate_scan_freqs(
4026 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4030 enum ieee80211_band band;
4033 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4034 if (wiphy->bands[band])
4035 n_channels += wiphy->bands[band]->n_channels;
4038 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4039 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4042 if (n_ssids > wiphy->max_scan_ssids)
4045 if (info->attrs[NL80211_ATTR_IE])
4046 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4050 if (ie_len > wiphy->max_scan_ie_len)
4053 request = kzalloc(sizeof(*request)
4054 + sizeof(*request->ssids) * n_ssids
4055 + sizeof(*request->channels) * n_channels
4056 + ie_len, GFP_KERNEL);
4061 request->ssids = (void *)&request->channels[n_channels];
4062 request->n_ssids = n_ssids;
4065 request->ie = (void *)(request->ssids + n_ssids);
4067 request->ie = (void *)(request->channels + n_channels);
4071 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4072 /* user specified, bail out if channel not found */
4073 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4074 struct ieee80211_channel *chan;
4076 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4083 /* ignore disabled channels */
4084 if (chan->flags & IEEE80211_CHAN_DISABLED)
4087 request->channels[i] = chan;
4091 enum ieee80211_band band;
4094 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4096 if (!wiphy->bands[band])
4098 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4099 struct ieee80211_channel *chan;
4101 chan = &wiphy->bands[band]->channels[j];
4103 if (chan->flags & IEEE80211_CHAN_DISABLED)
4106 request->channels[i] = chan;
4117 request->n_channels = i;
4120 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4121 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4122 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4126 request->ssids[i].ssid_len = nla_len(attr);
4127 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4132 if (info->attrs[NL80211_ATTR_IE]) {
4133 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4134 memcpy((void *)request->ie,
4135 nla_data(info->attrs[NL80211_ATTR_IE]),
4139 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4140 if (wiphy->bands[i])
4142 (1 << wiphy->bands[i]->n_bitrates) - 1;
4144 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4145 nla_for_each_nested(attr,
4146 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4148 enum ieee80211_band band = nla_type(attr);
4150 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4154 err = ieee80211_get_ratemask(wiphy->bands[band],
4157 &request->rates[band]);
4164 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4167 request->wiphy = &rdev->wiphy;
4169 rdev->scan_req = request;
4170 err = rdev->ops->scan(&rdev->wiphy, dev, request);
4173 nl80211_send_scan_start(rdev, dev);
4177 rdev->scan_req = NULL;
4184 static int nl80211_start_sched_scan(struct sk_buff *skb,
4185 struct genl_info *info)
4187 struct cfg80211_sched_scan_request *request;
4188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4189 struct net_device *dev = info->user_ptr[1];
4190 struct nlattr *attr;
4191 struct wiphy *wiphy;
4192 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4194 enum ieee80211_band band;
4196 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4198 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4199 !rdev->ops->sched_scan_start)
4202 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4205 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4208 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4212 wiphy = &rdev->wiphy;
4214 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4215 n_channels = validate_scan_freqs(
4216 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4222 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4223 if (wiphy->bands[band])
4224 n_channels += wiphy->bands[band]->n_channels;
4227 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4228 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4232 if (n_ssids > wiphy->max_sched_scan_ssids)
4235 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4236 nla_for_each_nested(attr,
4237 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4241 if (n_match_sets > wiphy->max_match_sets)
4244 if (info->attrs[NL80211_ATTR_IE])
4245 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4249 if (ie_len > wiphy->max_sched_scan_ie_len)
4252 mutex_lock(&rdev->sched_scan_mtx);
4254 if (rdev->sched_scan_req) {
4259 request = kzalloc(sizeof(*request)
4260 + sizeof(*request->ssids) * n_ssids
4261 + sizeof(*request->match_sets) * n_match_sets
4262 + sizeof(*request->channels) * n_channels
4263 + ie_len, GFP_KERNEL);
4270 request->ssids = (void *)&request->channels[n_channels];
4271 request->n_ssids = n_ssids;
4274 request->ie = (void *)(request->ssids + n_ssids);
4276 request->ie = (void *)(request->channels + n_channels);
4281 request->match_sets = (void *)(request->ie + ie_len);
4282 else if (request->ssids)
4283 request->match_sets =
4284 (void *)(request->ssids + n_ssids);
4286 request->match_sets =
4287 (void *)(request->channels + n_channels);
4289 request->n_match_sets = n_match_sets;
4292 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4293 /* user specified, bail out if channel not found */
4294 nla_for_each_nested(attr,
4295 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4297 struct ieee80211_channel *chan;
4299 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4306 /* ignore disabled channels */
4307 if (chan->flags & IEEE80211_CHAN_DISABLED)
4310 request->channels[i] = chan;
4315 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4317 if (!wiphy->bands[band])
4319 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4320 struct ieee80211_channel *chan;
4322 chan = &wiphy->bands[band]->channels[j];
4324 if (chan->flags & IEEE80211_CHAN_DISABLED)
4327 request->channels[i] = chan;
4338 request->n_channels = i;
4341 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4342 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4344 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4348 request->ssids[i].ssid_len = nla_len(attr);
4349 memcpy(request->ssids[i].ssid, nla_data(attr),
4356 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4357 nla_for_each_nested(attr,
4358 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4360 struct nlattr *ssid;
4362 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4363 nla_data(attr), nla_len(attr),
4364 nl80211_match_policy);
4365 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4367 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4371 memcpy(request->match_sets[i].ssid.ssid,
4372 nla_data(ssid), nla_len(ssid));
4373 request->match_sets[i].ssid.ssid_len =
4380 if (info->attrs[NL80211_ATTR_IE]) {
4381 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4382 memcpy((void *)request->ie,
4383 nla_data(info->attrs[NL80211_ATTR_IE]),
4388 request->wiphy = &rdev->wiphy;
4389 request->interval = interval;
4391 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4393 rdev->sched_scan_req = request;
4394 nl80211_send_sched_scan(rdev, dev,
4395 NL80211_CMD_START_SCHED_SCAN);
4402 mutex_unlock(&rdev->sched_scan_mtx);
4406 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4407 struct genl_info *info)
4409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4412 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4413 !rdev->ops->sched_scan_stop)
4416 mutex_lock(&rdev->sched_scan_mtx);
4417 err = __cfg80211_stop_sched_scan(rdev, false);
4418 mutex_unlock(&rdev->sched_scan_mtx);
4423 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4425 struct cfg80211_registered_device *rdev,
4426 struct wireless_dev *wdev,
4427 struct cfg80211_internal_bss *intbss)
4429 struct cfg80211_bss *res = &intbss->pub;
4433 ASSERT_WDEV_LOCK(wdev);
4435 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4436 NL80211_CMD_NEW_SCAN_RESULTS);
4440 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4442 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4443 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4444 goto nla_put_failure;
4446 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4448 goto nla_put_failure;
4449 if ((!is_zero_ether_addr(res->bssid) &&
4450 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4451 (res->information_elements && res->len_information_elements &&
4452 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4453 res->len_information_elements,
4454 res->information_elements)) ||
4455 (res->beacon_ies && res->len_beacon_ies &&
4456 res->beacon_ies != res->information_elements &&
4457 nla_put(msg, NL80211_BSS_BEACON_IES,
4458 res->len_beacon_ies, res->beacon_ies)))
4459 goto nla_put_failure;
4461 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4462 goto nla_put_failure;
4463 if (res->beacon_interval &&
4464 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4465 goto nla_put_failure;
4466 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4467 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4468 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4469 jiffies_to_msecs(jiffies - intbss->ts)))
4470 goto nla_put_failure;
4472 switch (rdev->wiphy.signal_type) {
4473 case CFG80211_SIGNAL_TYPE_MBM:
4474 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4475 goto nla_put_failure;
4477 case CFG80211_SIGNAL_TYPE_UNSPEC:
4478 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4479 goto nla_put_failure;
4485 switch (wdev->iftype) {
4486 case NL80211_IFTYPE_P2P_CLIENT:
4487 case NL80211_IFTYPE_STATION:
4488 if (intbss == wdev->current_bss &&
4489 nla_put_u32(msg, NL80211_BSS_STATUS,
4490 NL80211_BSS_STATUS_ASSOCIATED))
4491 goto nla_put_failure;
4493 case NL80211_IFTYPE_ADHOC:
4494 if (intbss == wdev->current_bss &&
4495 nla_put_u32(msg, NL80211_BSS_STATUS,
4496 NL80211_BSS_STATUS_IBSS_JOINED))
4497 goto nla_put_failure;
4503 nla_nest_end(msg, bss);
4505 return genlmsg_end(msg, hdr);
4508 genlmsg_cancel(msg, hdr);
4512 static int nl80211_dump_scan(struct sk_buff *skb,
4513 struct netlink_callback *cb)
4515 struct cfg80211_registered_device *rdev;
4516 struct net_device *dev;
4517 struct cfg80211_internal_bss *scan;
4518 struct wireless_dev *wdev;
4519 int start = cb->args[1], idx = 0;
4522 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4526 wdev = dev->ieee80211_ptr;
4529 spin_lock_bh(&rdev->bss_lock);
4530 cfg80211_bss_expire(rdev);
4532 cb->seq = rdev->bss_generation;
4534 list_for_each_entry(scan, &rdev->bss_list, list) {
4537 if (nl80211_send_bss(skb, cb,
4538 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4539 rdev, wdev, scan) < 0) {
4545 spin_unlock_bh(&rdev->bss_lock);
4549 nl80211_finish_netdev_dump(rdev);
4554 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4555 int flags, struct net_device *dev,
4556 struct survey_info *survey)
4559 struct nlattr *infoattr;
4561 hdr = nl80211hdr_put(msg, pid, seq, flags,
4562 NL80211_CMD_NEW_SURVEY_RESULTS);
4566 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4567 goto nla_put_failure;
4569 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4571 goto nla_put_failure;
4573 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4574 survey->channel->center_freq))
4575 goto nla_put_failure;
4577 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4578 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4579 goto nla_put_failure;
4580 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4581 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4582 goto nla_put_failure;
4583 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4584 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4585 survey->channel_time))
4586 goto nla_put_failure;
4587 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4588 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4589 survey->channel_time_busy))
4590 goto nla_put_failure;
4591 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4592 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4593 survey->channel_time_ext_busy))
4594 goto nla_put_failure;
4595 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4596 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4597 survey->channel_time_rx))
4598 goto nla_put_failure;
4599 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4600 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4601 survey->channel_time_tx))
4602 goto nla_put_failure;
4604 nla_nest_end(msg, infoattr);
4606 return genlmsg_end(msg, hdr);
4609 genlmsg_cancel(msg, hdr);
4613 static int nl80211_dump_survey(struct sk_buff *skb,
4614 struct netlink_callback *cb)
4616 struct survey_info survey;
4617 struct cfg80211_registered_device *dev;
4618 struct net_device *netdev;
4619 int survey_idx = cb->args[1];
4622 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4626 if (!dev->ops->dump_survey) {
4632 struct ieee80211_channel *chan;
4634 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4641 /* Survey without a channel doesn't make sense */
4642 if (!survey.channel) {
4647 chan = ieee80211_get_channel(&dev->wiphy,
4648 survey.channel->center_freq);
4649 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4654 if (nl80211_send_survey(skb,
4655 NETLINK_CB(cb->skb).pid,
4656 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4664 cb->args[1] = survey_idx;
4667 nl80211_finish_netdev_dump(dev);
4671 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4673 return auth_type <= NL80211_AUTHTYPE_MAX;
4676 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4678 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4679 NL80211_WPA_VERSION_2));
4682 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4685 struct net_device *dev = info->user_ptr[1];
4686 struct ieee80211_channel *chan;
4687 const u8 *bssid, *ssid, *ie = NULL;
4688 int err, ssid_len, ie_len = 0;
4689 enum nl80211_auth_type auth_type;
4690 struct key_parse key;
4691 bool local_state_change;
4693 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4696 if (!info->attrs[NL80211_ATTR_MAC])
4699 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4702 if (!info->attrs[NL80211_ATTR_SSID])
4705 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4708 err = nl80211_parse_key(info, &key);
4713 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4715 if (!key.p.key || !key.p.key_len)
4717 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4718 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4719 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4720 key.p.key_len != WLAN_KEY_LEN_WEP104))
4732 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4733 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4742 if (!rdev->ops->auth)
4745 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4746 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4749 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4750 chan = ieee80211_get_channel(&rdev->wiphy,
4751 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4752 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4755 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4756 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4758 if (info->attrs[NL80211_ATTR_IE]) {
4759 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4760 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4763 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4764 if (!nl80211_valid_auth_type(auth_type))
4767 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4770 * Since we no longer track auth state, ignore
4771 * requests to only change local state.
4773 if (local_state_change)
4776 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4777 ssid, ssid_len, ie, ie_len,
4778 key.p.key, key.p.key_len, key.idx);
4781 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4782 struct genl_info *info,
4783 struct cfg80211_crypto_settings *settings,
4786 memset(settings, 0, sizeof(*settings));
4788 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4790 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4792 proto = nla_get_u16(
4793 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4794 settings->control_port_ethertype = cpu_to_be16(proto);
4795 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4798 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4799 settings->control_port_no_encrypt = true;
4801 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4803 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4807 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4808 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4809 settings->n_ciphers_pairwise = len / sizeof(u32);
4811 if (len % sizeof(u32))
4814 if (settings->n_ciphers_pairwise > cipher_limit)
4817 memcpy(settings->ciphers_pairwise, data, len);
4819 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4820 if (!cfg80211_supported_cipher_suite(
4822 settings->ciphers_pairwise[i]))
4826 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4827 settings->cipher_group =
4828 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4829 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4830 settings->cipher_group))
4834 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4835 settings->wpa_versions =
4836 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4837 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4841 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4845 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4846 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4847 settings->n_akm_suites = len / sizeof(u32);
4849 if (len % sizeof(u32))
4852 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4855 memcpy(settings->akm_suites, data, len);
4861 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4863 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4864 struct net_device *dev = info->user_ptr[1];
4865 struct cfg80211_crypto_settings crypto;
4866 struct ieee80211_channel *chan;
4867 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4868 int err, ssid_len, ie_len = 0;
4869 bool use_mfp = false;
4871 struct ieee80211_ht_cap *ht_capa = NULL;
4872 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4874 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4877 if (!info->attrs[NL80211_ATTR_MAC] ||
4878 !info->attrs[NL80211_ATTR_SSID] ||
4879 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4882 if (!rdev->ops->assoc)
4885 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4886 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4889 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4891 chan = ieee80211_get_channel(&rdev->wiphy,
4892 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4893 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4896 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4897 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4899 if (info->attrs[NL80211_ATTR_IE]) {
4900 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4901 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4904 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4905 enum nl80211_mfp mfp =
4906 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4907 if (mfp == NL80211_MFP_REQUIRED)
4909 else if (mfp != NL80211_MFP_NO)
4913 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4914 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4916 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4917 flags |= ASSOC_REQ_DISABLE_HT;
4919 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4921 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4923 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4926 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4929 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4931 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4932 ssid, ssid_len, ie, ie_len, use_mfp,
4933 &crypto, flags, ht_capa,
4939 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4942 struct net_device *dev = info->user_ptr[1];
4943 const u8 *ie = NULL, *bssid;
4946 bool local_state_change;
4948 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4951 if (!info->attrs[NL80211_ATTR_MAC])
4954 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4957 if (!rdev->ops->deauth)
4960 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4961 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4964 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4966 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4967 if (reason_code == 0) {
4968 /* Reason Code 0 is reserved */
4972 if (info->attrs[NL80211_ATTR_IE]) {
4973 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4974 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4977 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4979 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4980 local_state_change);
4983 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4986 struct net_device *dev = info->user_ptr[1];
4987 const u8 *ie = NULL, *bssid;
4990 bool local_state_change;
4992 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4995 if (!info->attrs[NL80211_ATTR_MAC])
4998 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5001 if (!rdev->ops->disassoc)
5004 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5005 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5008 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5010 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5011 if (reason_code == 0) {
5012 /* Reason Code 0 is reserved */
5016 if (info->attrs[NL80211_ATTR_IE]) {
5017 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5018 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5021 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5023 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5024 local_state_change);
5028 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5029 int mcast_rate[IEEE80211_NUM_BANDS],
5032 struct wiphy *wiphy = &rdev->wiphy;
5036 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5037 struct ieee80211_supported_band *sband;
5039 sband = wiphy->bands[band];
5043 for (i = 0; i < sband->n_bitrates; i++) {
5044 if (sband->bitrates[i].bitrate == rateval) {
5045 mcast_rate[band] = i + 1;
5055 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5058 struct net_device *dev = info->user_ptr[1];
5059 struct cfg80211_ibss_params ibss;
5060 struct wiphy *wiphy;
5061 struct cfg80211_cached_keys *connkeys = NULL;
5064 memset(&ibss, 0, sizeof(ibss));
5066 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5069 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5070 !info->attrs[NL80211_ATTR_SSID] ||
5071 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5074 ibss.beacon_interval = 100;
5076 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5077 ibss.beacon_interval =
5078 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5079 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5083 if (!rdev->ops->join_ibss)
5086 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5089 wiphy = &rdev->wiphy;
5091 if (info->attrs[NL80211_ATTR_MAC]) {
5092 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5094 if (!is_valid_ether_addr(ibss.bssid))
5097 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5098 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5100 if (info->attrs[NL80211_ATTR_IE]) {
5101 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5102 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5105 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5106 enum nl80211_channel_type channel_type;
5108 if (!nl80211_valid_channel_type(info, &channel_type))
5111 if (channel_type != NL80211_CHAN_NO_HT &&
5112 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5115 ibss.channel_type = channel_type;
5117 ibss.channel_type = NL80211_CHAN_NO_HT;
5120 ibss.channel = rdev_freq_to_chan(rdev,
5121 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5123 if (!ibss.channel ||
5124 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5125 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5128 /* Both channels should be able to initiate communication */
5129 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5130 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5131 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5135 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5136 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5138 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5140 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5142 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5143 struct ieee80211_supported_band *sband =
5144 wiphy->bands[ibss.channel->band];
5146 err = ieee80211_get_ratemask(sband, rates, n_rates,
5152 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5153 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5154 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5157 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5158 connkeys = nl80211_parse_connkeys(rdev,
5159 info->attrs[NL80211_ATTR_KEYS]);
5160 if (IS_ERR(connkeys))
5161 return PTR_ERR(connkeys);
5165 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5167 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5173 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5176 struct net_device *dev = info->user_ptr[1];
5178 if (!rdev->ops->leave_ibss)
5181 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5184 return cfg80211_leave_ibss(rdev, dev, false);
5187 #ifdef CONFIG_NL80211_TESTMODE
5188 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5192 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5197 if (!info->attrs[NL80211_ATTR_TESTDATA])
5201 if (rdev->ops->testmode_cmd) {
5202 rdev->testmode_info = info;
5203 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5204 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5205 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5206 rdev->testmode_info = NULL;
5212 static int nl80211_testmode_dump(struct sk_buff *skb,
5213 struct netlink_callback *cb)
5215 struct cfg80211_registered_device *rdev;
5223 * 0 is a valid index, but not valid for args[0],
5224 * so we need to offset by 1.
5226 phy_idx = cb->args[0] - 1;
5228 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5229 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5233 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
5234 phy_idx = nla_get_u32(
5235 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
5237 struct net_device *netdev;
5239 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
5240 nl80211_fam.attrbuf,
5245 phy_idx = rdev->wiphy_idx;
5246 cfg80211_unlock_rdev(rdev);
5248 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5250 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5254 data = nla_data((void *)cb->args[1]);
5255 data_len = nla_len((void *)cb->args[1]);
5258 mutex_lock(&cfg80211_mutex);
5259 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5261 mutex_unlock(&cfg80211_mutex);
5264 cfg80211_lock_rdev(rdev);
5265 mutex_unlock(&cfg80211_mutex);
5267 if (!rdev->ops->testmode_dump) {
5273 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5274 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5275 NL80211_CMD_TESTMODE);
5276 struct nlattr *tmdata;
5278 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5279 genlmsg_cancel(skb, hdr);
5283 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5285 genlmsg_cancel(skb, hdr);
5288 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5290 nla_nest_end(skb, tmdata);
5292 if (err == -ENOBUFS || err == -ENOENT) {
5293 genlmsg_cancel(skb, hdr);
5296 genlmsg_cancel(skb, hdr);
5300 genlmsg_end(skb, hdr);
5305 cb->args[0] = phy_idx + 1;
5307 cfg80211_unlock_rdev(rdev);
5311 static struct sk_buff *
5312 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5313 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5315 struct sk_buff *skb;
5317 struct nlattr *data;
5319 skb = nlmsg_new(approxlen + 100, gfp);
5323 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5329 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5330 goto nla_put_failure;
5331 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5333 ((void **)skb->cb)[0] = rdev;
5334 ((void **)skb->cb)[1] = hdr;
5335 ((void **)skb->cb)[2] = data;
5344 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5347 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5349 if (WARN_ON(!rdev->testmode_info))
5352 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5353 rdev->testmode_info->snd_pid,
5354 rdev->testmode_info->snd_seq,
5357 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5359 int cfg80211_testmode_reply(struct sk_buff *skb)
5361 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5362 void *hdr = ((void **)skb->cb)[1];
5363 struct nlattr *data = ((void **)skb->cb)[2];
5365 if (WARN_ON(!rdev->testmode_info)) {
5370 nla_nest_end(skb, data);
5371 genlmsg_end(skb, hdr);
5372 return genlmsg_reply(skb, rdev->testmode_info);
5374 EXPORT_SYMBOL(cfg80211_testmode_reply);
5376 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5377 int approxlen, gfp_t gfp)
5379 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5381 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5383 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5385 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5387 void *hdr = ((void **)skb->cb)[1];
5388 struct nlattr *data = ((void **)skb->cb)[2];
5390 nla_nest_end(skb, data);
5391 genlmsg_end(skb, hdr);
5392 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5394 EXPORT_SYMBOL(cfg80211_testmode_event);
5397 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5399 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5400 struct net_device *dev = info->user_ptr[1];
5401 struct cfg80211_connect_params connect;
5402 struct wiphy *wiphy;
5403 struct cfg80211_cached_keys *connkeys = NULL;
5406 memset(&connect, 0, sizeof(connect));
5408 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5411 if (!info->attrs[NL80211_ATTR_SSID] ||
5412 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5415 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5417 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5418 if (!nl80211_valid_auth_type(connect.auth_type))
5421 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5423 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5425 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5426 NL80211_MAX_NR_CIPHER_SUITES);
5430 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5431 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5434 wiphy = &rdev->wiphy;
5436 connect.bg_scan_period = -1;
5437 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5438 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5439 connect.bg_scan_period =
5440 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5443 if (info->attrs[NL80211_ATTR_MAC])
5444 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5445 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5446 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5448 if (info->attrs[NL80211_ATTR_IE]) {
5449 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5450 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5453 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5455 ieee80211_get_channel(wiphy,
5456 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5457 if (!connect.channel ||
5458 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5462 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5463 connkeys = nl80211_parse_connkeys(rdev,
5464 info->attrs[NL80211_ATTR_KEYS]);
5465 if (IS_ERR(connkeys))
5466 return PTR_ERR(connkeys);
5469 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5470 connect.flags |= ASSOC_REQ_DISABLE_HT;
5472 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5473 memcpy(&connect.ht_capa_mask,
5474 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5475 sizeof(connect.ht_capa_mask));
5477 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5478 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5480 memcpy(&connect.ht_capa,
5481 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5482 sizeof(connect.ht_capa));
5485 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5491 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5494 struct net_device *dev = info->user_ptr[1];
5497 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5498 reason = WLAN_REASON_DEAUTH_LEAVING;
5500 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5505 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5506 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5509 return cfg80211_disconnect(rdev, dev, reason, true);
5512 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5519 if (!info->attrs[NL80211_ATTR_PID])
5522 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5524 net = get_net_ns_by_pid(pid);
5526 return PTR_ERR(net);
5530 /* check if anything to do */
5531 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5532 err = cfg80211_switch_netns(rdev, net);
5538 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5541 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5542 struct cfg80211_pmksa *pmksa) = NULL;
5543 struct net_device *dev = info->user_ptr[1];
5544 struct cfg80211_pmksa pmksa;
5546 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5548 if (!info->attrs[NL80211_ATTR_MAC])
5551 if (!info->attrs[NL80211_ATTR_PMKID])
5554 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5555 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5557 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5558 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5561 switch (info->genlhdr->cmd) {
5562 case NL80211_CMD_SET_PMKSA:
5563 rdev_ops = rdev->ops->set_pmksa;
5565 case NL80211_CMD_DEL_PMKSA:
5566 rdev_ops = rdev->ops->del_pmksa;
5576 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5579 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5581 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5582 struct net_device *dev = info->user_ptr[1];
5584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5585 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5588 if (!rdev->ops->flush_pmksa)
5591 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5594 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5597 struct net_device *dev = info->user_ptr[1];
5598 u8 action_code, dialog_token;
5602 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5603 !rdev->ops->tdls_mgmt)
5606 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5607 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5608 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5609 !info->attrs[NL80211_ATTR_IE] ||
5610 !info->attrs[NL80211_ATTR_MAC])
5613 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5614 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5615 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5616 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5618 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5619 dialog_token, status_code,
5620 nla_data(info->attrs[NL80211_ATTR_IE]),
5621 nla_len(info->attrs[NL80211_ATTR_IE]));
5624 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5627 struct net_device *dev = info->user_ptr[1];
5628 enum nl80211_tdls_operation operation;
5631 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5632 !rdev->ops->tdls_oper)
5635 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5636 !info->attrs[NL80211_ATTR_MAC])
5639 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5640 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5642 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5645 static int nl80211_remain_on_channel(struct sk_buff *skb,
5646 struct genl_info *info)
5648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5649 struct net_device *dev = info->user_ptr[1];
5650 struct ieee80211_channel *chan;
5651 struct sk_buff *msg;
5654 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5658 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5659 !info->attrs[NL80211_ATTR_DURATION])
5662 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5664 if (!rdev->ops->remain_on_channel ||
5665 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5669 * We should be on that channel for at least a minimum amount of
5670 * time (10ms) but no longer than the driver supports.
5672 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5673 duration > rdev->wiphy.max_remain_on_channel_duration)
5676 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5677 !nl80211_valid_channel_type(info, &channel_type))
5680 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5681 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5685 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5689 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5690 NL80211_CMD_REMAIN_ON_CHANNEL);
5697 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5698 channel_type, duration, &cookie);
5703 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5704 goto nla_put_failure;
5706 genlmsg_end(msg, hdr);
5708 return genlmsg_reply(msg, info);
5717 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5718 struct genl_info *info)
5720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5721 struct net_device *dev = info->user_ptr[1];
5724 if (!info->attrs[NL80211_ATTR_COOKIE])
5727 if (!rdev->ops->cancel_remain_on_channel)
5730 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5732 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5735 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5736 u8 *rates, u8 rates_len)
5741 for (i = 0; i < rates_len; i++) {
5742 int rate = (rates[i] & 0x7f) * 5;
5744 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5745 struct ieee80211_rate *srate =
5746 &sband->bitrates[ridx];
5747 if (rate == srate->bitrate) {
5752 if (ridx == sband->n_bitrates)
5753 return 0; /* rate not found */
5759 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5760 u8 *rates, u8 rates_len,
5761 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5765 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5767 for (i = 0; i < rates_len; i++) {
5770 ridx = rates[i] / 8;
5771 rbit = BIT(rates[i] % 8);
5773 /* check validity */
5774 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5777 /* check availability */
5778 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5787 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5788 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5789 .len = NL80211_MAX_SUPP_RATES },
5790 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5791 .len = NL80211_MAX_SUPP_HT_RATES },
5794 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5795 struct genl_info *info)
5797 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5798 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5799 struct cfg80211_bitrate_mask mask;
5801 struct net_device *dev = info->user_ptr[1];
5802 struct nlattr *tx_rates;
5803 struct ieee80211_supported_band *sband;
5805 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5808 if (!rdev->ops->set_bitrate_mask)
5811 memset(&mask, 0, sizeof(mask));
5812 /* Default to all rates enabled */
5813 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5814 sband = rdev->wiphy.bands[i];
5815 mask.control[i].legacy =
5816 sband ? (1 << sband->n_bitrates) - 1 : 0;
5818 memcpy(mask.control[i].mcs,
5819 sband->ht_cap.mcs.rx_mask,
5820 sizeof(mask.control[i].mcs));
5822 memset(mask.control[i].mcs, 0,
5823 sizeof(mask.control[i].mcs));
5827 * The nested attribute uses enum nl80211_band as the index. This maps
5828 * directly to the enum ieee80211_band values used in cfg80211.
5830 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5831 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5833 enum ieee80211_band band = nla_type(tx_rates);
5834 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5836 sband = rdev->wiphy.bands[band];
5839 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5840 nla_len(tx_rates), nl80211_txattr_policy);
5841 if (tb[NL80211_TXRATE_LEGACY]) {
5842 mask.control[band].legacy = rateset_to_mask(
5844 nla_data(tb[NL80211_TXRATE_LEGACY]),
5845 nla_len(tb[NL80211_TXRATE_LEGACY]));
5846 if ((mask.control[band].legacy == 0) &&
5847 nla_len(tb[NL80211_TXRATE_LEGACY]))
5850 if (tb[NL80211_TXRATE_MCS]) {
5851 if (!ht_rateset_to_mask(
5853 nla_data(tb[NL80211_TXRATE_MCS]),
5854 nla_len(tb[NL80211_TXRATE_MCS]),
5855 mask.control[band].mcs))
5859 if (mask.control[band].legacy == 0) {
5860 /* don't allow empty legacy rates if HT
5861 * is not even supported. */
5862 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5865 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5866 if (mask.control[band].mcs[i])
5869 /* legacy and mcs rates may not be both empty */
5870 if (i == IEEE80211_HT_MCS_MASK_LEN)
5875 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5878 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5881 struct net_device *dev = info->user_ptr[1];
5882 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5884 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5887 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5888 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5890 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5891 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5892 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5893 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5894 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5895 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5896 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5899 /* not much point in registering if we can't reply */
5900 if (!rdev->ops->mgmt_tx)
5903 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5905 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5906 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5909 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5912 struct net_device *dev = info->user_ptr[1];
5913 struct ieee80211_channel *chan;
5914 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5915 bool channel_type_valid = false;
5920 struct sk_buff *msg = NULL;
5921 unsigned int wait = 0;
5922 bool offchan, no_cck, dont_wait_for_ack;
5924 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5926 if (!info->attrs[NL80211_ATTR_FRAME] ||
5927 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5930 if (!rdev->ops->mgmt_tx)
5933 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5934 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5935 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5936 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5938 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5939 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5942 if (info->attrs[NL80211_ATTR_DURATION]) {
5943 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5945 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5948 * We should wait on the channel for at least a minimum amount
5949 * of time (10ms) but no longer than the driver supports.
5951 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5952 wait > rdev->wiphy.max_remain_on_channel_duration)
5957 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5958 if (!nl80211_valid_channel_type(info, &channel_type))
5960 channel_type_valid = true;
5963 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5965 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5968 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5970 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5971 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5975 if (!dont_wait_for_ack) {
5976 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5980 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5989 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5990 channel_type_valid, wait,
5991 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5992 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5993 no_cck, dont_wait_for_ack, &cookie);
5998 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5999 goto nla_put_failure;
6001 genlmsg_end(msg, hdr);
6002 return genlmsg_reply(msg, info);
6014 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6017 struct net_device *dev = info->user_ptr[1];
6020 if (!info->attrs[NL80211_ATTR_COOKIE])
6023 if (!rdev->ops->mgmt_tx_cancel_wait)
6026 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6027 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6028 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6029 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6030 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6031 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6034 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6036 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6039 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6042 struct wireless_dev *wdev;
6043 struct net_device *dev = info->user_ptr[1];
6048 if (!info->attrs[NL80211_ATTR_PS_STATE])
6051 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6053 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6056 wdev = dev->ieee80211_ptr;
6058 if (!rdev->ops->set_power_mgmt)
6061 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6063 if (state == wdev->ps)
6066 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6073 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6076 enum nl80211_ps_state ps_state;
6077 struct wireless_dev *wdev;
6078 struct net_device *dev = info->user_ptr[1];
6079 struct sk_buff *msg;
6083 wdev = dev->ieee80211_ptr;
6085 if (!rdev->ops->set_power_mgmt)
6088 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6092 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6093 NL80211_CMD_GET_POWER_SAVE);
6100 ps_state = NL80211_PS_ENABLED;
6102 ps_state = NL80211_PS_DISABLED;
6104 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6105 goto nla_put_failure;
6107 genlmsg_end(msg, hdr);
6108 return genlmsg_reply(msg, info);
6117 static struct nla_policy
6118 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6119 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6120 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6121 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6124 static int nl80211_set_cqm_rssi(struct genl_info *info,
6125 s32 threshold, u32 hysteresis)
6127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6128 struct wireless_dev *wdev;
6129 struct net_device *dev = info->user_ptr[1];
6134 wdev = dev->ieee80211_ptr;
6136 if (!rdev->ops->set_cqm_rssi_config)
6139 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6140 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6143 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6144 threshold, hysteresis);
6147 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6149 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6153 cqm = info->attrs[NL80211_ATTR_CQM];
6159 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6160 nl80211_attr_cqm_policy);
6164 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6165 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6168 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6169 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6170 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6178 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6181 struct net_device *dev = info->user_ptr[1];
6182 struct mesh_config cfg;
6183 struct mesh_setup setup;
6186 /* start with default */
6187 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6188 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6190 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6191 /* and parse parameters if given */
6192 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6197 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6198 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6201 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6202 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6204 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6205 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6206 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6209 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6210 /* parse additional setup parameters if given */
6211 err = nl80211_parse_mesh_setup(info, &setup);
6216 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6217 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6219 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6220 !nl80211_valid_channel_type(info, &channel_type))
6223 setup.channel = rdev_freq_to_chan(rdev,
6224 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6228 setup.channel_type = channel_type;
6230 /* cfg80211_join_mesh() will sort it out */
6231 setup.channel = NULL;
6234 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6237 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6239 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6240 struct net_device *dev = info->user_ptr[1];
6242 return cfg80211_leave_mesh(rdev, dev);
6245 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6247 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6248 struct sk_buff *msg;
6251 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6254 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6258 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6259 NL80211_CMD_GET_WOWLAN);
6261 goto nla_put_failure;
6264 struct nlattr *nl_wowlan;
6266 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6268 goto nla_put_failure;
6270 if ((rdev->wowlan->any &&
6271 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6272 (rdev->wowlan->disconnect &&
6273 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6274 (rdev->wowlan->magic_pkt &&
6275 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6276 (rdev->wowlan->gtk_rekey_failure &&
6277 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6278 (rdev->wowlan->eap_identity_req &&
6279 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6280 (rdev->wowlan->four_way_handshake &&
6281 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6282 (rdev->wowlan->rfkill_release &&
6283 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6284 goto nla_put_failure;
6285 if (rdev->wowlan->n_patterns) {
6286 struct nlattr *nl_pats, *nl_pat;
6289 nl_pats = nla_nest_start(msg,
6290 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6292 goto nla_put_failure;
6294 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6295 nl_pat = nla_nest_start(msg, i + 1);
6297 goto nla_put_failure;
6298 pat_len = rdev->wowlan->patterns[i].pattern_len;
6299 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6300 DIV_ROUND_UP(pat_len, 8),
6301 rdev->wowlan->patterns[i].mask) ||
6302 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6304 rdev->wowlan->patterns[i].pattern))
6305 goto nla_put_failure;
6306 nla_nest_end(msg, nl_pat);
6308 nla_nest_end(msg, nl_pats);
6311 nla_nest_end(msg, nl_wowlan);
6314 genlmsg_end(msg, hdr);
6315 return genlmsg_reply(msg, info);
6322 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6325 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6326 struct cfg80211_wowlan no_triggers = {};
6327 struct cfg80211_wowlan new_triggers = {};
6328 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6330 bool prev_enabled = rdev->wowlan;
6332 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6335 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6338 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6339 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6340 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6341 nl80211_wowlan_policy);
6345 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6346 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6348 new_triggers.any = true;
6351 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6352 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6354 new_triggers.disconnect = true;
6357 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6358 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6360 new_triggers.magic_pkt = true;
6363 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6366 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6367 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6369 new_triggers.gtk_rekey_failure = true;
6372 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6373 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6375 new_triggers.eap_identity_req = true;
6378 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6379 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6381 new_triggers.four_way_handshake = true;
6384 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6385 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6387 new_triggers.rfkill_release = true;
6390 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6393 int rem, pat_len, mask_len;
6394 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6396 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6399 if (n_patterns > wowlan->n_patterns)
6402 new_triggers.patterns = kcalloc(n_patterns,
6403 sizeof(new_triggers.patterns[0]),
6405 if (!new_triggers.patterns)
6408 new_triggers.n_patterns = n_patterns;
6411 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6413 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6414 nla_data(pat), nla_len(pat), NULL);
6416 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6417 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6419 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6420 mask_len = DIV_ROUND_UP(pat_len, 8);
6421 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6424 if (pat_len > wowlan->pattern_max_len ||
6425 pat_len < wowlan->pattern_min_len)
6428 new_triggers.patterns[i].mask =
6429 kmalloc(mask_len + pat_len, GFP_KERNEL);
6430 if (!new_triggers.patterns[i].mask) {
6434 new_triggers.patterns[i].pattern =
6435 new_triggers.patterns[i].mask + mask_len;
6436 memcpy(new_triggers.patterns[i].mask,
6437 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6439 new_triggers.patterns[i].pattern_len = pat_len;
6440 memcpy(new_triggers.patterns[i].pattern,
6441 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6447 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6448 struct cfg80211_wowlan *ntrig;
6449 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6455 cfg80211_rdev_free_wowlan(rdev);
6456 rdev->wowlan = ntrig;
6459 cfg80211_rdev_free_wowlan(rdev);
6460 rdev->wowlan = NULL;
6463 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6464 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6468 for (i = 0; i < new_triggers.n_patterns; i++)
6469 kfree(new_triggers.patterns[i].mask);
6470 kfree(new_triggers.patterns);
6474 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6477 struct net_device *dev = info->user_ptr[1];
6478 struct wireless_dev *wdev = dev->ieee80211_ptr;
6479 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6480 struct cfg80211_gtk_rekey_data rekey_data;
6483 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6486 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6487 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6488 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6489 nl80211_rekey_policy);
6493 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6495 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6497 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6500 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6502 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6504 memcpy(rekey_data.replay_ctr,
6505 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6506 NL80211_REPLAY_CTR_LEN);
6509 if (!wdev->current_bss) {
6514 if (!rdev->ops->set_rekey_data) {
6519 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6525 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6526 struct genl_info *info)
6528 struct net_device *dev = info->user_ptr[1];
6529 struct wireless_dev *wdev = dev->ieee80211_ptr;
6531 if (wdev->iftype != NL80211_IFTYPE_AP &&
6532 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6535 if (wdev->ap_unexpected_nlpid)
6538 wdev->ap_unexpected_nlpid = info->snd_pid;
6542 static int nl80211_probe_client(struct sk_buff *skb,
6543 struct genl_info *info)
6545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6546 struct net_device *dev = info->user_ptr[1];
6547 struct wireless_dev *wdev = dev->ieee80211_ptr;
6548 struct sk_buff *msg;
6554 if (wdev->iftype != NL80211_IFTYPE_AP &&
6555 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6558 if (!info->attrs[NL80211_ATTR_MAC])
6561 if (!rdev->ops->probe_client)
6564 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6568 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6569 NL80211_CMD_PROBE_CLIENT);
6576 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6578 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6582 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6583 goto nla_put_failure;
6585 genlmsg_end(msg, hdr);
6587 return genlmsg_reply(msg, info);
6596 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6600 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6603 if (rdev->ap_beacons_nlpid)
6606 rdev->ap_beacons_nlpid = info->snd_pid;
6611 #define NL80211_FLAG_NEED_WIPHY 0x01
6612 #define NL80211_FLAG_NEED_NETDEV 0x02
6613 #define NL80211_FLAG_NEED_RTNL 0x04
6614 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6615 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6616 NL80211_FLAG_CHECK_NETDEV_UP)
6618 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6619 struct genl_info *info)
6621 struct cfg80211_registered_device *rdev;
6622 struct net_device *dev;
6624 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6629 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6630 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6634 return PTR_ERR(rdev);
6636 info->user_ptr[0] = rdev;
6637 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6638 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6645 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6646 !netif_running(dev)) {
6647 cfg80211_unlock_rdev(rdev);
6653 info->user_ptr[0] = rdev;
6654 info->user_ptr[1] = dev;
6660 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6661 struct genl_info *info)
6663 if (info->user_ptr[0])
6664 cfg80211_unlock_rdev(info->user_ptr[0]);
6665 if (info->user_ptr[1])
6666 dev_put(info->user_ptr[1]);
6667 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6671 static struct genl_ops nl80211_ops[] = {
6673 .cmd = NL80211_CMD_GET_WIPHY,
6674 .doit = nl80211_get_wiphy,
6675 .dumpit = nl80211_dump_wiphy,
6676 .policy = nl80211_policy,
6677 /* can be retrieved by unprivileged users */
6678 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6681 .cmd = NL80211_CMD_SET_WIPHY,
6682 .doit = nl80211_set_wiphy,
6683 .policy = nl80211_policy,
6684 .flags = GENL_ADMIN_PERM,
6685 .internal_flags = NL80211_FLAG_NEED_RTNL,
6688 .cmd = NL80211_CMD_GET_INTERFACE,
6689 .doit = nl80211_get_interface,
6690 .dumpit = nl80211_dump_interface,
6691 .policy = nl80211_policy,
6692 /* can be retrieved by unprivileged users */
6693 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6696 .cmd = NL80211_CMD_SET_INTERFACE,
6697 .doit = nl80211_set_interface,
6698 .policy = nl80211_policy,
6699 .flags = GENL_ADMIN_PERM,
6700 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6701 NL80211_FLAG_NEED_RTNL,
6704 .cmd = NL80211_CMD_NEW_INTERFACE,
6705 .doit = nl80211_new_interface,
6706 .policy = nl80211_policy,
6707 .flags = GENL_ADMIN_PERM,
6708 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6709 NL80211_FLAG_NEED_RTNL,
6712 .cmd = NL80211_CMD_DEL_INTERFACE,
6713 .doit = nl80211_del_interface,
6714 .policy = nl80211_policy,
6715 .flags = GENL_ADMIN_PERM,
6716 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6717 NL80211_FLAG_NEED_RTNL,
6720 .cmd = NL80211_CMD_GET_KEY,
6721 .doit = nl80211_get_key,
6722 .policy = nl80211_policy,
6723 .flags = GENL_ADMIN_PERM,
6724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6725 NL80211_FLAG_NEED_RTNL,
6728 .cmd = NL80211_CMD_SET_KEY,
6729 .doit = nl80211_set_key,
6730 .policy = nl80211_policy,
6731 .flags = GENL_ADMIN_PERM,
6732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6733 NL80211_FLAG_NEED_RTNL,
6736 .cmd = NL80211_CMD_NEW_KEY,
6737 .doit = nl80211_new_key,
6738 .policy = nl80211_policy,
6739 .flags = GENL_ADMIN_PERM,
6740 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6741 NL80211_FLAG_NEED_RTNL,
6744 .cmd = NL80211_CMD_DEL_KEY,
6745 .doit = nl80211_del_key,
6746 .policy = nl80211_policy,
6747 .flags = GENL_ADMIN_PERM,
6748 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6749 NL80211_FLAG_NEED_RTNL,
6752 .cmd = NL80211_CMD_SET_BEACON,
6753 .policy = nl80211_policy,
6754 .flags = GENL_ADMIN_PERM,
6755 .doit = nl80211_set_beacon,
6756 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6757 NL80211_FLAG_NEED_RTNL,
6760 .cmd = NL80211_CMD_START_AP,
6761 .policy = nl80211_policy,
6762 .flags = GENL_ADMIN_PERM,
6763 .doit = nl80211_start_ap,
6764 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6765 NL80211_FLAG_NEED_RTNL,
6768 .cmd = NL80211_CMD_STOP_AP,
6769 .policy = nl80211_policy,
6770 .flags = GENL_ADMIN_PERM,
6771 .doit = nl80211_stop_ap,
6772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6773 NL80211_FLAG_NEED_RTNL,
6776 .cmd = NL80211_CMD_GET_STATION,
6777 .doit = nl80211_get_station,
6778 .dumpit = nl80211_dump_station,
6779 .policy = nl80211_policy,
6780 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6781 NL80211_FLAG_NEED_RTNL,
6784 .cmd = NL80211_CMD_SET_STATION,
6785 .doit = nl80211_set_station,
6786 .policy = nl80211_policy,
6787 .flags = GENL_ADMIN_PERM,
6788 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6789 NL80211_FLAG_NEED_RTNL,
6792 .cmd = NL80211_CMD_NEW_STATION,
6793 .doit = nl80211_new_station,
6794 .policy = nl80211_policy,
6795 .flags = GENL_ADMIN_PERM,
6796 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6797 NL80211_FLAG_NEED_RTNL,
6800 .cmd = NL80211_CMD_DEL_STATION,
6801 .doit = nl80211_del_station,
6802 .policy = nl80211_policy,
6803 .flags = GENL_ADMIN_PERM,
6804 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6805 NL80211_FLAG_NEED_RTNL,
6808 .cmd = NL80211_CMD_GET_MPATH,
6809 .doit = nl80211_get_mpath,
6810 .dumpit = nl80211_dump_mpath,
6811 .policy = nl80211_policy,
6812 .flags = GENL_ADMIN_PERM,
6813 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6814 NL80211_FLAG_NEED_RTNL,
6817 .cmd = NL80211_CMD_SET_MPATH,
6818 .doit = nl80211_set_mpath,
6819 .policy = nl80211_policy,
6820 .flags = GENL_ADMIN_PERM,
6821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6822 NL80211_FLAG_NEED_RTNL,
6825 .cmd = NL80211_CMD_NEW_MPATH,
6826 .doit = nl80211_new_mpath,
6827 .policy = nl80211_policy,
6828 .flags = GENL_ADMIN_PERM,
6829 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6830 NL80211_FLAG_NEED_RTNL,
6833 .cmd = NL80211_CMD_DEL_MPATH,
6834 .doit = nl80211_del_mpath,
6835 .policy = nl80211_policy,
6836 .flags = GENL_ADMIN_PERM,
6837 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6838 NL80211_FLAG_NEED_RTNL,
6841 .cmd = NL80211_CMD_SET_BSS,
6842 .doit = nl80211_set_bss,
6843 .policy = nl80211_policy,
6844 .flags = GENL_ADMIN_PERM,
6845 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6846 NL80211_FLAG_NEED_RTNL,
6849 .cmd = NL80211_CMD_GET_REG,
6850 .doit = nl80211_get_reg,
6851 .policy = nl80211_policy,
6852 /* can be retrieved by unprivileged users */
6855 .cmd = NL80211_CMD_SET_REG,
6856 .doit = nl80211_set_reg,
6857 .policy = nl80211_policy,
6858 .flags = GENL_ADMIN_PERM,
6861 .cmd = NL80211_CMD_REQ_SET_REG,
6862 .doit = nl80211_req_set_reg,
6863 .policy = nl80211_policy,
6864 .flags = GENL_ADMIN_PERM,
6867 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6868 .doit = nl80211_get_mesh_config,
6869 .policy = nl80211_policy,
6870 /* can be retrieved by unprivileged users */
6871 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6872 NL80211_FLAG_NEED_RTNL,
6875 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6876 .doit = nl80211_update_mesh_config,
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_TRIGGER_SCAN,
6884 .doit = nl80211_trigger_scan,
6885 .policy = nl80211_policy,
6886 .flags = GENL_ADMIN_PERM,
6887 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6888 NL80211_FLAG_NEED_RTNL,
6891 .cmd = NL80211_CMD_GET_SCAN,
6892 .policy = nl80211_policy,
6893 .dumpit = nl80211_dump_scan,
6896 .cmd = NL80211_CMD_START_SCHED_SCAN,
6897 .doit = nl80211_start_sched_scan,
6898 .policy = nl80211_policy,
6899 .flags = GENL_ADMIN_PERM,
6900 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6901 NL80211_FLAG_NEED_RTNL,
6904 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6905 .doit = nl80211_stop_sched_scan,
6906 .policy = nl80211_policy,
6907 .flags = GENL_ADMIN_PERM,
6908 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6909 NL80211_FLAG_NEED_RTNL,
6912 .cmd = NL80211_CMD_AUTHENTICATE,
6913 .doit = nl80211_authenticate,
6914 .policy = nl80211_policy,
6915 .flags = GENL_ADMIN_PERM,
6916 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6917 NL80211_FLAG_NEED_RTNL,
6920 .cmd = NL80211_CMD_ASSOCIATE,
6921 .doit = nl80211_associate,
6922 .policy = nl80211_policy,
6923 .flags = GENL_ADMIN_PERM,
6924 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6925 NL80211_FLAG_NEED_RTNL,
6928 .cmd = NL80211_CMD_DEAUTHENTICATE,
6929 .doit = nl80211_deauthenticate,
6930 .policy = nl80211_policy,
6931 .flags = GENL_ADMIN_PERM,
6932 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6933 NL80211_FLAG_NEED_RTNL,
6936 .cmd = NL80211_CMD_DISASSOCIATE,
6937 .doit = nl80211_disassociate,
6938 .policy = nl80211_policy,
6939 .flags = GENL_ADMIN_PERM,
6940 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6941 NL80211_FLAG_NEED_RTNL,
6944 .cmd = NL80211_CMD_JOIN_IBSS,
6945 .doit = nl80211_join_ibss,
6946 .policy = nl80211_policy,
6947 .flags = GENL_ADMIN_PERM,
6948 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6949 NL80211_FLAG_NEED_RTNL,
6952 .cmd = NL80211_CMD_LEAVE_IBSS,
6953 .doit = nl80211_leave_ibss,
6954 .policy = nl80211_policy,
6955 .flags = GENL_ADMIN_PERM,
6956 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6957 NL80211_FLAG_NEED_RTNL,
6959 #ifdef CONFIG_NL80211_TESTMODE
6961 .cmd = NL80211_CMD_TESTMODE,
6962 .doit = nl80211_testmode_do,
6963 .dumpit = nl80211_testmode_dump,
6964 .policy = nl80211_policy,
6965 .flags = GENL_ADMIN_PERM,
6966 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6967 NL80211_FLAG_NEED_RTNL,
6971 .cmd = NL80211_CMD_CONNECT,
6972 .doit = nl80211_connect,
6973 .policy = nl80211_policy,
6974 .flags = GENL_ADMIN_PERM,
6975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6976 NL80211_FLAG_NEED_RTNL,
6979 .cmd = NL80211_CMD_DISCONNECT,
6980 .doit = nl80211_disconnect,
6981 .policy = nl80211_policy,
6982 .flags = GENL_ADMIN_PERM,
6983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6984 NL80211_FLAG_NEED_RTNL,
6987 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6988 .doit = nl80211_wiphy_netns,
6989 .policy = nl80211_policy,
6990 .flags = GENL_ADMIN_PERM,
6991 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6992 NL80211_FLAG_NEED_RTNL,
6995 .cmd = NL80211_CMD_GET_SURVEY,
6996 .policy = nl80211_policy,
6997 .dumpit = nl80211_dump_survey,
7000 .cmd = NL80211_CMD_SET_PMKSA,
7001 .doit = nl80211_setdel_pmksa,
7002 .policy = nl80211_policy,
7003 .flags = GENL_ADMIN_PERM,
7004 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7005 NL80211_FLAG_NEED_RTNL,
7008 .cmd = NL80211_CMD_DEL_PMKSA,
7009 .doit = nl80211_setdel_pmksa,
7010 .policy = nl80211_policy,
7011 .flags = GENL_ADMIN_PERM,
7012 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7013 NL80211_FLAG_NEED_RTNL,
7016 .cmd = NL80211_CMD_FLUSH_PMKSA,
7017 .doit = nl80211_flush_pmksa,
7018 .policy = nl80211_policy,
7019 .flags = GENL_ADMIN_PERM,
7020 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7021 NL80211_FLAG_NEED_RTNL,
7024 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7025 .doit = nl80211_remain_on_channel,
7026 .policy = nl80211_policy,
7027 .flags = GENL_ADMIN_PERM,
7028 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7029 NL80211_FLAG_NEED_RTNL,
7032 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7033 .doit = nl80211_cancel_remain_on_channel,
7034 .policy = nl80211_policy,
7035 .flags = GENL_ADMIN_PERM,
7036 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7037 NL80211_FLAG_NEED_RTNL,
7040 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7041 .doit = nl80211_set_tx_bitrate_mask,
7042 .policy = nl80211_policy,
7043 .flags = GENL_ADMIN_PERM,
7044 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7045 NL80211_FLAG_NEED_RTNL,
7048 .cmd = NL80211_CMD_REGISTER_FRAME,
7049 .doit = nl80211_register_mgmt,
7050 .policy = nl80211_policy,
7051 .flags = GENL_ADMIN_PERM,
7052 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7053 NL80211_FLAG_NEED_RTNL,
7056 .cmd = NL80211_CMD_FRAME,
7057 .doit = nl80211_tx_mgmt,
7058 .policy = nl80211_policy,
7059 .flags = GENL_ADMIN_PERM,
7060 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7061 NL80211_FLAG_NEED_RTNL,
7064 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7065 .doit = nl80211_tx_mgmt_cancel_wait,
7066 .policy = nl80211_policy,
7067 .flags = GENL_ADMIN_PERM,
7068 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7069 NL80211_FLAG_NEED_RTNL,
7072 .cmd = NL80211_CMD_SET_POWER_SAVE,
7073 .doit = nl80211_set_power_save,
7074 .policy = nl80211_policy,
7075 .flags = GENL_ADMIN_PERM,
7076 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7077 NL80211_FLAG_NEED_RTNL,
7080 .cmd = NL80211_CMD_GET_POWER_SAVE,
7081 .doit = nl80211_get_power_save,
7082 .policy = nl80211_policy,
7083 /* can be retrieved by unprivileged users */
7084 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7085 NL80211_FLAG_NEED_RTNL,
7088 .cmd = NL80211_CMD_SET_CQM,
7089 .doit = nl80211_set_cqm,
7090 .policy = nl80211_policy,
7091 .flags = GENL_ADMIN_PERM,
7092 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7093 NL80211_FLAG_NEED_RTNL,
7096 .cmd = NL80211_CMD_SET_CHANNEL,
7097 .doit = nl80211_set_channel,
7098 .policy = nl80211_policy,
7099 .flags = GENL_ADMIN_PERM,
7100 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7101 NL80211_FLAG_NEED_RTNL,
7104 .cmd = NL80211_CMD_SET_WDS_PEER,
7105 .doit = nl80211_set_wds_peer,
7106 .policy = nl80211_policy,
7107 .flags = GENL_ADMIN_PERM,
7108 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7109 NL80211_FLAG_NEED_RTNL,
7112 .cmd = NL80211_CMD_JOIN_MESH,
7113 .doit = nl80211_join_mesh,
7114 .policy = nl80211_policy,
7115 .flags = GENL_ADMIN_PERM,
7116 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7117 NL80211_FLAG_NEED_RTNL,
7120 .cmd = NL80211_CMD_LEAVE_MESH,
7121 .doit = nl80211_leave_mesh,
7122 .policy = nl80211_policy,
7123 .flags = GENL_ADMIN_PERM,
7124 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7125 NL80211_FLAG_NEED_RTNL,
7128 .cmd = NL80211_CMD_GET_WOWLAN,
7129 .doit = nl80211_get_wowlan,
7130 .policy = nl80211_policy,
7131 /* can be retrieved by unprivileged users */
7132 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7133 NL80211_FLAG_NEED_RTNL,
7136 .cmd = NL80211_CMD_SET_WOWLAN,
7137 .doit = nl80211_set_wowlan,
7138 .policy = nl80211_policy,
7139 .flags = GENL_ADMIN_PERM,
7140 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7141 NL80211_FLAG_NEED_RTNL,
7144 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7145 .doit = nl80211_set_rekey_data,
7146 .policy = nl80211_policy,
7147 .flags = GENL_ADMIN_PERM,
7148 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7149 NL80211_FLAG_NEED_RTNL,
7152 .cmd = NL80211_CMD_TDLS_MGMT,
7153 .doit = nl80211_tdls_mgmt,
7154 .policy = nl80211_policy,
7155 .flags = GENL_ADMIN_PERM,
7156 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7157 NL80211_FLAG_NEED_RTNL,
7160 .cmd = NL80211_CMD_TDLS_OPER,
7161 .doit = nl80211_tdls_oper,
7162 .policy = nl80211_policy,
7163 .flags = GENL_ADMIN_PERM,
7164 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7165 NL80211_FLAG_NEED_RTNL,
7168 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7169 .doit = nl80211_register_unexpected_frame,
7170 .policy = nl80211_policy,
7171 .flags = GENL_ADMIN_PERM,
7172 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7173 NL80211_FLAG_NEED_RTNL,
7176 .cmd = NL80211_CMD_PROBE_CLIENT,
7177 .doit = nl80211_probe_client,
7178 .policy = nl80211_policy,
7179 .flags = GENL_ADMIN_PERM,
7180 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7181 NL80211_FLAG_NEED_RTNL,
7184 .cmd = NL80211_CMD_REGISTER_BEACONS,
7185 .doit = nl80211_register_beacons,
7186 .policy = nl80211_policy,
7187 .flags = GENL_ADMIN_PERM,
7188 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7189 NL80211_FLAG_NEED_RTNL,
7192 .cmd = NL80211_CMD_SET_NOACK_MAP,
7193 .doit = nl80211_set_noack_map,
7194 .policy = nl80211_policy,
7195 .flags = GENL_ADMIN_PERM,
7196 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7197 NL80211_FLAG_NEED_RTNL,
7202 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7206 /* multicast groups */
7207 static struct genl_multicast_group nl80211_config_mcgrp = {
7210 static struct genl_multicast_group nl80211_scan_mcgrp = {
7213 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7214 .name = "regulatory",
7217 /* notification functions */
7219 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7221 struct sk_buff *msg;
7223 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7227 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7232 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7233 nl80211_config_mcgrp.id, GFP_KERNEL);
7236 static int nl80211_add_scan_req(struct sk_buff *msg,
7237 struct cfg80211_registered_device *rdev)
7239 struct cfg80211_scan_request *req = rdev->scan_req;
7240 struct nlattr *nest;
7243 ASSERT_RDEV_LOCK(rdev);
7248 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7250 goto nla_put_failure;
7251 for (i = 0; i < req->n_ssids; i++) {
7252 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7253 goto nla_put_failure;
7255 nla_nest_end(msg, nest);
7257 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7259 goto nla_put_failure;
7260 for (i = 0; i < req->n_channels; i++) {
7261 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7262 goto nla_put_failure;
7264 nla_nest_end(msg, nest);
7267 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7268 goto nla_put_failure;
7275 static int nl80211_send_scan_msg(struct sk_buff *msg,
7276 struct cfg80211_registered_device *rdev,
7277 struct net_device *netdev,
7278 u32 pid, u32 seq, int flags,
7283 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7287 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7288 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7289 goto nla_put_failure;
7291 /* ignore errors and send incomplete event anyway */
7292 nl80211_add_scan_req(msg, rdev);
7294 return genlmsg_end(msg, hdr);
7297 genlmsg_cancel(msg, hdr);
7302 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7303 struct cfg80211_registered_device *rdev,
7304 struct net_device *netdev,
7305 u32 pid, u32 seq, int flags, u32 cmd)
7309 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7314 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7315 goto nla_put_failure;
7317 return genlmsg_end(msg, hdr);
7320 genlmsg_cancel(msg, hdr);
7324 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7325 struct net_device *netdev)
7327 struct sk_buff *msg;
7329 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7333 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7334 NL80211_CMD_TRIGGER_SCAN) < 0) {
7339 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7340 nl80211_scan_mcgrp.id, GFP_KERNEL);
7343 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7344 struct net_device *netdev)
7346 struct sk_buff *msg;
7348 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7352 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7353 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7358 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7359 nl80211_scan_mcgrp.id, GFP_KERNEL);
7362 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7363 struct net_device *netdev)
7365 struct sk_buff *msg;
7367 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7371 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7372 NL80211_CMD_SCAN_ABORTED) < 0) {
7377 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7378 nl80211_scan_mcgrp.id, GFP_KERNEL);
7381 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7382 struct net_device *netdev)
7384 struct sk_buff *msg;
7386 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7390 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7391 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7396 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7397 nl80211_scan_mcgrp.id, GFP_KERNEL);
7400 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7401 struct net_device *netdev, u32 cmd)
7403 struct sk_buff *msg;
7405 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7409 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7414 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7415 nl80211_scan_mcgrp.id, GFP_KERNEL);
7419 * This can happen on global regulatory changes or device specific settings
7420 * based on custom world regulatory domains.
7422 void nl80211_send_reg_change_event(struct regulatory_request *request)
7424 struct sk_buff *msg;
7427 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7431 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7437 /* Userspace can always count this one always being set */
7438 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7439 goto nla_put_failure;
7441 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7442 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7443 NL80211_REGDOM_TYPE_WORLD))
7444 goto nla_put_failure;
7445 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7446 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7447 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7448 goto nla_put_failure;
7449 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7450 request->intersect) {
7451 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7452 NL80211_REGDOM_TYPE_INTERSECTION))
7453 goto nla_put_failure;
7455 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7456 NL80211_REGDOM_TYPE_COUNTRY) ||
7457 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7459 goto nla_put_failure;
7462 if (wiphy_idx_valid(request->wiphy_idx) &&
7463 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7464 goto nla_put_failure;
7466 genlmsg_end(msg, hdr);
7469 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7476 genlmsg_cancel(msg, hdr);
7480 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7481 struct net_device *netdev,
7482 const u8 *buf, size_t len,
7483 enum nl80211_commands cmd, gfp_t gfp)
7485 struct sk_buff *msg;
7488 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7492 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7498 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7499 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7500 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7501 goto nla_put_failure;
7503 genlmsg_end(msg, hdr);
7505 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7506 nl80211_mlme_mcgrp.id, gfp);
7510 genlmsg_cancel(msg, hdr);
7514 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7515 struct net_device *netdev, const u8 *buf,
7516 size_t len, gfp_t gfp)
7518 nl80211_send_mlme_event(rdev, netdev, buf, len,
7519 NL80211_CMD_AUTHENTICATE, gfp);
7522 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7523 struct net_device *netdev, const u8 *buf,
7524 size_t len, gfp_t gfp)
7526 nl80211_send_mlme_event(rdev, netdev, buf, len,
7527 NL80211_CMD_ASSOCIATE, gfp);
7530 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7531 struct net_device *netdev, const u8 *buf,
7532 size_t len, gfp_t gfp)
7534 nl80211_send_mlme_event(rdev, netdev, buf, len,
7535 NL80211_CMD_DEAUTHENTICATE, gfp);
7538 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7539 struct net_device *netdev, const u8 *buf,
7540 size_t len, gfp_t gfp)
7542 nl80211_send_mlme_event(rdev, netdev, buf, len,
7543 NL80211_CMD_DISASSOCIATE, gfp);
7546 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7547 struct net_device *netdev, const u8 *buf,
7548 size_t len, gfp_t gfp)
7550 nl80211_send_mlme_event(rdev, netdev, buf, len,
7551 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7554 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7555 struct net_device *netdev, const u8 *buf,
7556 size_t len, gfp_t gfp)
7558 nl80211_send_mlme_event(rdev, netdev, buf, len,
7559 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7562 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7563 struct net_device *netdev, int cmd,
7564 const u8 *addr, gfp_t gfp)
7566 struct sk_buff *msg;
7569 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7573 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7579 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7580 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7581 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7582 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7583 goto nla_put_failure;
7585 genlmsg_end(msg, hdr);
7587 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7588 nl80211_mlme_mcgrp.id, gfp);
7592 genlmsg_cancel(msg, hdr);
7596 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7597 struct net_device *netdev, const u8 *addr,
7600 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7604 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7605 struct net_device *netdev, const u8 *addr,
7608 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7612 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7613 struct net_device *netdev, const u8 *bssid,
7614 const u8 *req_ie, size_t req_ie_len,
7615 const u8 *resp_ie, size_t resp_ie_len,
7616 u16 status, gfp_t gfp)
7618 struct sk_buff *msg;
7621 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7625 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7631 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7632 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7633 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7634 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7636 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7638 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7639 goto nla_put_failure;
7641 genlmsg_end(msg, hdr);
7643 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7644 nl80211_mlme_mcgrp.id, gfp);
7648 genlmsg_cancel(msg, hdr);
7653 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7654 struct net_device *netdev, const u8 *bssid,
7655 const u8 *req_ie, size_t req_ie_len,
7656 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7658 struct sk_buff *msg;
7661 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7665 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7671 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7672 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7673 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7675 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7677 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7678 goto nla_put_failure;
7680 genlmsg_end(msg, hdr);
7682 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7683 nl80211_mlme_mcgrp.id, gfp);
7687 genlmsg_cancel(msg, hdr);
7692 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7693 struct net_device *netdev, u16 reason,
7694 const u8 *ie, size_t ie_len, bool from_ap)
7696 struct sk_buff *msg;
7699 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7703 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7709 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7710 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7711 (from_ap && reason &&
7712 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7714 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7715 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7716 goto nla_put_failure;
7718 genlmsg_end(msg, hdr);
7720 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7721 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7725 genlmsg_cancel(msg, hdr);
7730 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7731 struct net_device *netdev, const u8 *bssid,
7734 struct sk_buff *msg;
7737 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7741 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7747 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7748 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7749 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
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);
7759 genlmsg_cancel(msg, hdr);
7763 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7764 struct net_device *netdev,
7765 const u8 *macaddr, const u8* ie, u8 ie_len,
7768 struct sk_buff *msg;
7771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7775 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
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, macaddr) ||
7785 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7786 goto nla_put_failure;
7788 genlmsg_end(msg, hdr);
7790 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7791 nl80211_mlme_mcgrp.id, gfp);
7795 genlmsg_cancel(msg, hdr);
7799 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7800 struct net_device *netdev, const u8 *addr,
7801 enum nl80211_key_type key_type, int key_id,
7802 const u8 *tsc, gfp_t gfp)
7804 struct sk_buff *msg;
7807 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7811 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7817 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7818 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7819 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7820 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7822 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7823 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7824 goto nla_put_failure;
7826 genlmsg_end(msg, hdr);
7828 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7829 nl80211_mlme_mcgrp.id, gfp);
7833 genlmsg_cancel(msg, hdr);
7837 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7838 struct ieee80211_channel *channel_before,
7839 struct ieee80211_channel *channel_after)
7841 struct sk_buff *msg;
7843 struct nlattr *nl_freq;
7845 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7849 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7856 * Since we are applying the beacon hint to a wiphy we know its
7857 * wiphy_idx is valid
7859 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7860 goto nla_put_failure;
7863 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7865 goto nla_put_failure;
7866 if (nl80211_msg_put_channel(msg, channel_before))
7867 goto nla_put_failure;
7868 nla_nest_end(msg, nl_freq);
7871 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7873 goto nla_put_failure;
7874 if (nl80211_msg_put_channel(msg, channel_after))
7875 goto nla_put_failure;
7876 nla_nest_end(msg, nl_freq);
7878 genlmsg_end(msg, hdr);
7881 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7888 genlmsg_cancel(msg, hdr);
7892 static void nl80211_send_remain_on_chan_event(
7893 int cmd, struct cfg80211_registered_device *rdev,
7894 struct net_device *netdev, u64 cookie,
7895 struct ieee80211_channel *chan,
7896 enum nl80211_channel_type channel_type,
7897 unsigned int duration, gfp_t gfp)
7899 struct sk_buff *msg;
7902 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7906 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7912 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7913 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7914 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7915 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7916 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7917 goto nla_put_failure;
7919 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7920 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7921 goto nla_put_failure;
7923 genlmsg_end(msg, hdr);
7925 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7926 nl80211_mlme_mcgrp.id, gfp);
7930 genlmsg_cancel(msg, hdr);
7934 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7935 struct net_device *netdev, u64 cookie,
7936 struct ieee80211_channel *chan,
7937 enum nl80211_channel_type channel_type,
7938 unsigned int duration, gfp_t gfp)
7940 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7941 rdev, netdev, cookie, chan,
7942 channel_type, duration, gfp);
7945 void nl80211_send_remain_on_channel_cancel(
7946 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7947 u64 cookie, struct ieee80211_channel *chan,
7948 enum nl80211_channel_type channel_type, gfp_t gfp)
7950 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7951 rdev, netdev, cookie, chan,
7952 channel_type, 0, gfp);
7955 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7956 struct net_device *dev, const u8 *mac_addr,
7957 struct station_info *sinfo, gfp_t gfp)
7959 struct sk_buff *msg;
7961 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7965 if (nl80211_send_station(msg, 0, 0, 0,
7966 rdev, dev, mac_addr, sinfo) < 0) {
7971 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7972 nl80211_mlme_mcgrp.id, gfp);
7975 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7976 struct net_device *dev, const u8 *mac_addr,
7979 struct sk_buff *msg;
7982 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7986 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7992 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
7993 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
7994 goto nla_put_failure;
7996 genlmsg_end(msg, hdr);
7998 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7999 nl80211_mlme_mcgrp.id, gfp);
8003 genlmsg_cancel(msg, hdr);
8007 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8008 const u8 *addr, gfp_t gfp)
8010 struct wireless_dev *wdev = dev->ieee80211_ptr;
8011 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8012 struct sk_buff *msg;
8015 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8020 msg = nlmsg_new(100, gfp);
8024 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8030 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8031 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8032 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8033 goto nla_put_failure;
8035 err = genlmsg_end(msg, hdr);
8041 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8045 genlmsg_cancel(msg, hdr);
8050 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8052 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8056 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8057 const u8 *addr, gfp_t gfp)
8059 return __nl80211_unexpected_frame(dev,
8060 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8064 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8065 struct net_device *netdev, u32 nlpid,
8066 int freq, int sig_dbm,
8067 const u8 *buf, size_t len, gfp_t gfp)
8069 struct sk_buff *msg;
8072 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8076 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8082 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8083 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8084 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8086 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8087 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8088 goto nla_put_failure;
8090 genlmsg_end(msg, hdr);
8092 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8095 genlmsg_cancel(msg, hdr);
8100 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8101 struct net_device *netdev, u64 cookie,
8102 const u8 *buf, size_t len, bool ack,
8105 struct sk_buff *msg;
8108 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8112 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8118 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8119 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8120 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8121 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8122 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8123 goto nla_put_failure;
8125 genlmsg_end(msg, hdr);
8127 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8131 genlmsg_cancel(msg, hdr);
8136 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8137 struct net_device *netdev,
8138 enum nl80211_cqm_rssi_threshold_event rssi_event,
8141 struct sk_buff *msg;
8142 struct nlattr *pinfoattr;
8145 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8149 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8155 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8156 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8157 goto nla_put_failure;
8159 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8161 goto nla_put_failure;
8163 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8165 goto nla_put_failure;
8167 nla_nest_end(msg, pinfoattr);
8169 genlmsg_end(msg, hdr);
8171 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8172 nl80211_mlme_mcgrp.id, gfp);
8176 genlmsg_cancel(msg, hdr);
8180 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8181 struct net_device *netdev, const u8 *bssid,
8182 const u8 *replay_ctr, gfp_t gfp)
8184 struct sk_buff *msg;
8185 struct nlattr *rekey_attr;
8188 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8192 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8198 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8199 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8200 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8201 goto nla_put_failure;
8203 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8205 goto nla_put_failure;
8207 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8208 NL80211_REPLAY_CTR_LEN, replay_ctr))
8209 goto nla_put_failure;
8211 nla_nest_end(msg, rekey_attr);
8213 genlmsg_end(msg, hdr);
8215 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8216 nl80211_mlme_mcgrp.id, gfp);
8220 genlmsg_cancel(msg, hdr);
8224 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8225 struct net_device *netdev, int index,
8226 const u8 *bssid, bool preauth, gfp_t gfp)
8228 struct sk_buff *msg;
8229 struct nlattr *attr;
8232 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8236 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8242 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8243 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8244 goto nla_put_failure;
8246 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8248 goto nla_put_failure;
8250 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8251 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8253 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8254 goto nla_put_failure;
8256 nla_nest_end(msg, attr);
8258 genlmsg_end(msg, hdr);
8260 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8261 nl80211_mlme_mcgrp.id, gfp);
8265 genlmsg_cancel(msg, hdr);
8269 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8270 struct net_device *netdev, int freq,
8271 enum nl80211_channel_type type, gfp_t gfp)
8273 struct sk_buff *msg;
8276 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8280 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8286 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8287 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8288 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8289 goto nla_put_failure;
8291 genlmsg_end(msg, hdr);
8293 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8294 nl80211_mlme_mcgrp.id, gfp);
8298 genlmsg_cancel(msg, hdr);
8303 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8304 struct net_device *netdev, const u8 *peer,
8305 u32 num_packets, gfp_t gfp)
8307 struct sk_buff *msg;
8308 struct nlattr *pinfoattr;
8311 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8315 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8322 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8323 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8324 goto nla_put_failure;
8326 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8328 goto nla_put_failure;
8330 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8331 goto nla_put_failure;
8333 nla_nest_end(msg, pinfoattr);
8335 genlmsg_end(msg, hdr);
8337 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8338 nl80211_mlme_mcgrp.id, gfp);
8342 genlmsg_cancel(msg, hdr);
8346 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8347 u64 cookie, bool acked, gfp_t gfp)
8349 struct wireless_dev *wdev = dev->ieee80211_ptr;
8350 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8351 struct sk_buff *msg;
8355 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8359 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8365 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8366 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8367 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8368 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8369 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8370 goto nla_put_failure;
8372 err = genlmsg_end(msg, hdr);
8378 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8379 nl80211_mlme_mcgrp.id, gfp);
8383 genlmsg_cancel(msg, hdr);
8386 EXPORT_SYMBOL(cfg80211_probe_status);
8388 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8389 const u8 *frame, size_t len,
8390 int freq, int sig_dbm, gfp_t gfp)
8392 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8393 struct sk_buff *msg;
8395 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8400 msg = nlmsg_new(len + 100, gfp);
8404 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8410 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8412 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8414 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8415 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8416 goto nla_put_failure;
8418 genlmsg_end(msg, hdr);
8420 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8424 genlmsg_cancel(msg, hdr);
8427 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8429 static int nl80211_netlink_notify(struct notifier_block * nb,
8430 unsigned long state,
8433 struct netlink_notify *notify = _notify;
8434 struct cfg80211_registered_device *rdev;
8435 struct wireless_dev *wdev;
8437 if (state != NETLINK_URELEASE)
8442 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8443 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8444 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8445 if (rdev->ap_beacons_nlpid == notify->pid)
8446 rdev->ap_beacons_nlpid = 0;
8454 static struct notifier_block nl80211_netlink_notifier = {
8455 .notifier_call = nl80211_netlink_notify,
8458 /* initialisation/exit functions */
8460 int nl80211_init(void)
8464 err = genl_register_family_with_ops(&nl80211_fam,
8465 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8469 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8473 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8477 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8481 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8485 #ifdef CONFIG_NL80211_TESTMODE
8486 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8491 err = netlink_register_notifier(&nl80211_netlink_notifier);
8497 genl_unregister_family(&nl80211_fam);
8501 void nl80211_exit(void)
8503 netlink_unregister_notifier(&nl80211_netlink_notifier);
8504 genl_unregister_family(&nl80211_fam);