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 bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2339 struct cfg80211_ap_settings *params)
2341 struct wireless_dev *wdev;
2344 mutex_lock(&rdev->devlist_mtx);
2346 list_for_each_entry(wdev, &rdev->netdev_list, list) {
2347 if (wdev->iftype != NL80211_IFTYPE_AP &&
2348 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2351 if (!wdev->preset_chan)
2354 params->channel = wdev->preset_chan;
2355 params->channel_type = wdev->preset_chantype;
2360 mutex_unlock(&rdev->devlist_mtx);
2365 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2368 struct net_device *dev = info->user_ptr[1];
2369 struct wireless_dev *wdev = dev->ieee80211_ptr;
2370 struct cfg80211_ap_settings params;
2373 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2374 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2377 if (!rdev->ops->start_ap)
2380 if (wdev->beacon_interval)
2383 memset(¶ms, 0, sizeof(params));
2385 /* these are required for START_AP */
2386 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2387 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2388 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2391 err = nl80211_parse_beacon(info, ¶ms.beacon);
2395 params.beacon_interval =
2396 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2397 params.dtim_period =
2398 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2400 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2405 * In theory, some of these attributes should be required here
2406 * but since they were not used when the command was originally
2407 * added, keep them optional for old user space programs to let
2408 * them continue to work with drivers that do not need the
2409 * additional information -- drivers must check!
2411 if (info->attrs[NL80211_ATTR_SSID]) {
2412 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2414 nla_len(info->attrs[NL80211_ATTR_SSID]);
2415 if (params.ssid_len == 0 ||
2416 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2420 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2421 params.hidden_ssid = nla_get_u32(
2422 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2423 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2424 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2425 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2429 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2431 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2432 params.auth_type = nla_get_u32(
2433 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2434 if (!nl80211_valid_auth_type(params.auth_type))
2437 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2439 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2440 NL80211_MAX_NR_CIPHER_SUITES);
2444 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2445 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2447 params.inactivity_timeout = nla_get_u16(
2448 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2451 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2452 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2454 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2455 !nl80211_valid_channel_type(info, &channel_type))
2458 params.channel = rdev_freq_to_chan(rdev,
2459 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2461 if (!params.channel)
2463 params.channel_type = channel_type;
2464 } else if (wdev->preset_chan) {
2465 params.channel = wdev->preset_chan;
2466 params.channel_type = wdev->preset_chantype;
2467 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2470 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2471 params.channel_type))
2474 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2476 wdev->preset_chan = params.channel;
2477 wdev->preset_chantype = params.channel_type;
2478 wdev->beacon_interval = params.beacon_interval;
2483 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2486 struct net_device *dev = info->user_ptr[1];
2487 struct wireless_dev *wdev = dev->ieee80211_ptr;
2488 struct cfg80211_beacon_data params;
2491 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2492 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2495 if (!rdev->ops->change_beacon)
2498 if (!wdev->beacon_interval)
2501 err = nl80211_parse_beacon(info, ¶ms);
2505 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2508 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2511 struct net_device *dev = info->user_ptr[1];
2512 struct wireless_dev *wdev = dev->ieee80211_ptr;
2515 if (!rdev->ops->stop_ap)
2518 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2519 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2522 if (!wdev->beacon_interval)
2525 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
2527 wdev->beacon_interval = 0;
2531 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2532 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2533 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2534 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2535 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2536 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2537 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2540 static int parse_station_flags(struct genl_info *info,
2541 enum nl80211_iftype iftype,
2542 struct station_parameters *params)
2544 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2549 * Try parsing the new attribute first so userspace
2550 * can specify both for older kernels.
2552 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2554 struct nl80211_sta_flag_update *sta_flags;
2556 sta_flags = nla_data(nla);
2557 params->sta_flags_mask = sta_flags->mask;
2558 params->sta_flags_set = sta_flags->set;
2559 if ((params->sta_flags_mask |
2560 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2565 /* if present, parse the old attribute */
2567 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2571 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2572 nla, sta_flags_policy))
2576 * Only allow certain flags for interface types so that
2577 * other attributes are silently ignored. Remember that
2578 * this is backward compatibility code with old userspace
2579 * and shouldn't be hit in other cases anyway.
2582 case NL80211_IFTYPE_AP:
2583 case NL80211_IFTYPE_AP_VLAN:
2584 case NL80211_IFTYPE_P2P_GO:
2585 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2586 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2587 BIT(NL80211_STA_FLAG_WME) |
2588 BIT(NL80211_STA_FLAG_MFP);
2590 case NL80211_IFTYPE_P2P_CLIENT:
2591 case NL80211_IFTYPE_STATION:
2592 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2593 BIT(NL80211_STA_FLAG_TDLS_PEER);
2595 case NL80211_IFTYPE_MESH_POINT:
2596 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2597 BIT(NL80211_STA_FLAG_MFP) |
2598 BIT(NL80211_STA_FLAG_AUTHORIZED);
2603 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2605 params->sta_flags_set |= (1<<flag);
2607 /* no longer support new API additions in old API */
2608 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2616 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2619 struct nlattr *rate;
2622 rate = nla_nest_start(msg, attr);
2624 goto nla_put_failure;
2626 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2627 bitrate = cfg80211_calculate_bitrate(info);
2629 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2630 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2631 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2632 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2633 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2634 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2635 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2636 goto nla_put_failure;
2638 nla_nest_end(msg, rate);
2645 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2647 struct cfg80211_registered_device *rdev,
2648 struct net_device *dev,
2649 const u8 *mac_addr, struct station_info *sinfo)
2652 struct nlattr *sinfoattr, *bss_param;
2654 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2658 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2659 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2660 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2661 goto nla_put_failure;
2663 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2665 goto nla_put_failure;
2666 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2667 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2668 sinfo->connected_time))
2669 goto nla_put_failure;
2670 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2671 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2672 sinfo->inactive_time))
2673 goto nla_put_failure;
2674 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2675 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2677 goto nla_put_failure;
2678 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2679 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2681 goto nla_put_failure;
2682 if ((sinfo->filled & STATION_INFO_LLID) &&
2683 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2684 goto nla_put_failure;
2685 if ((sinfo->filled & STATION_INFO_PLID) &&
2686 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2687 goto nla_put_failure;
2688 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2689 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2690 sinfo->plink_state))
2691 goto nla_put_failure;
2692 switch (rdev->wiphy.signal_type) {
2693 case CFG80211_SIGNAL_TYPE_MBM:
2694 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2695 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2697 goto nla_put_failure;
2698 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2699 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2701 goto nla_put_failure;
2706 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2707 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2708 NL80211_STA_INFO_TX_BITRATE))
2709 goto nla_put_failure;
2711 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2712 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2713 NL80211_STA_INFO_RX_BITRATE))
2714 goto nla_put_failure;
2716 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2717 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2719 goto nla_put_failure;
2720 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2721 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2723 goto nla_put_failure;
2724 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2725 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2727 goto nla_put_failure;
2728 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2729 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2731 goto nla_put_failure;
2732 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2733 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2734 sinfo->beacon_loss_count))
2735 goto nla_put_failure;
2736 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2737 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2739 goto nla_put_failure;
2741 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2742 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2743 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2744 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2745 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2746 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2747 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2748 sinfo->bss_param.dtim_period) ||
2749 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2750 sinfo->bss_param.beacon_interval))
2751 goto nla_put_failure;
2753 nla_nest_end(msg, bss_param);
2755 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2756 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2757 sizeof(struct nl80211_sta_flag_update),
2759 goto nla_put_failure;
2760 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2761 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2763 goto nla_put_failure;
2764 nla_nest_end(msg, sinfoattr);
2766 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2767 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2768 sinfo->assoc_req_ies))
2769 goto nla_put_failure;
2771 return genlmsg_end(msg, hdr);
2774 genlmsg_cancel(msg, hdr);
2778 static int nl80211_dump_station(struct sk_buff *skb,
2779 struct netlink_callback *cb)
2781 struct station_info sinfo;
2782 struct cfg80211_registered_device *dev;
2783 struct net_device *netdev;
2784 u8 mac_addr[ETH_ALEN];
2785 int sta_idx = cb->args[1];
2788 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2792 if (!dev->ops->dump_station) {
2798 memset(&sinfo, 0, sizeof(sinfo));
2799 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2806 if (nl80211_send_station(skb,
2807 NETLINK_CB(cb->skb).pid,
2808 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2809 dev, netdev, mac_addr,
2818 cb->args[1] = sta_idx;
2821 nl80211_finish_netdev_dump(dev);
2826 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2829 struct net_device *dev = info->user_ptr[1];
2830 struct station_info sinfo;
2831 struct sk_buff *msg;
2832 u8 *mac_addr = NULL;
2835 memset(&sinfo, 0, sizeof(sinfo));
2837 if (!info->attrs[NL80211_ATTR_MAC])
2840 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2842 if (!rdev->ops->get_station)
2845 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2853 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2854 rdev, dev, mac_addr, &sinfo) < 0) {
2859 return genlmsg_reply(msg, info);
2863 * Get vlan interface making sure it is running and on the right wiphy.
2865 static struct net_device *get_vlan(struct genl_info *info,
2866 struct cfg80211_registered_device *rdev)
2868 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2869 struct net_device *v;
2875 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2877 return ERR_PTR(-ENODEV);
2879 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2884 if (!netif_running(v)) {
2892 return ERR_PTR(ret);
2895 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2899 struct net_device *dev = info->user_ptr[1];
2900 struct station_parameters params;
2901 u8 *mac_addr = NULL;
2903 memset(¶ms, 0, sizeof(params));
2905 params.listen_interval = -1;
2906 params.plink_state = -1;
2908 if (info->attrs[NL80211_ATTR_STA_AID])
2911 if (!info->attrs[NL80211_ATTR_MAC])
2914 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2916 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2917 params.supported_rates =
2918 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2919 params.supported_rates_len =
2920 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2923 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2924 params.listen_interval =
2925 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2927 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2929 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2931 if (!rdev->ops->change_station)
2934 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2937 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2938 params.plink_action =
2939 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2941 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2942 params.plink_state =
2943 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2945 switch (dev->ieee80211_ptr->iftype) {
2946 case NL80211_IFTYPE_AP:
2947 case NL80211_IFTYPE_AP_VLAN:
2948 case NL80211_IFTYPE_P2P_GO:
2949 /* disallow mesh-specific things */
2950 if (params.plink_action)
2953 /* TDLS can't be set, ... */
2954 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2957 * ... but don't bother the driver with it. This works around
2958 * a hostapd/wpa_supplicant issue -- it always includes the
2959 * TLDS_PEER flag in the mask even for AP mode.
2961 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2963 /* accept only the listed bits */
2964 if (params.sta_flags_mask &
2965 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2966 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2967 BIT(NL80211_STA_FLAG_WME) |
2968 BIT(NL80211_STA_FLAG_MFP)))
2971 /* must be last in here for error handling */
2972 params.vlan = get_vlan(info, rdev);
2973 if (IS_ERR(params.vlan))
2974 return PTR_ERR(params.vlan);
2976 case NL80211_IFTYPE_P2P_CLIENT:
2977 case NL80211_IFTYPE_STATION:
2979 * Don't allow userspace to change the TDLS_PEER flag,
2980 * but silently ignore attempts to change it since we
2981 * don't have state here to verify that it doesn't try
2982 * to change the flag.
2984 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2986 case NL80211_IFTYPE_ADHOC:
2987 /* disallow things sta doesn't support */
2988 if (params.plink_action)
2992 if (params.listen_interval >= 0)
2994 /* reject any changes other than AUTHORIZED */
2995 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2998 case NL80211_IFTYPE_MESH_POINT:
2999 /* disallow things mesh doesn't support */
3004 if (params.listen_interval >= 0)
3007 * No special handling for TDLS here -- the userspace
3008 * mesh code doesn't have this bug.
3010 if (params.sta_flags_mask &
3011 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3012 BIT(NL80211_STA_FLAG_MFP) |
3013 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3020 /* be aware of params.vlan when changing code here */
3022 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3025 dev_put(params.vlan);
3030 static struct nla_policy
3031 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3032 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3033 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3036 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3040 struct net_device *dev = info->user_ptr[1];
3041 struct station_parameters params;
3042 u8 *mac_addr = NULL;
3044 memset(¶ms, 0, sizeof(params));
3046 if (!info->attrs[NL80211_ATTR_MAC])
3049 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3052 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3055 if (!info->attrs[NL80211_ATTR_STA_AID])
3058 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3059 params.supported_rates =
3060 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3061 params.supported_rates_len =
3062 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3063 params.listen_interval =
3064 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3066 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3067 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3070 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3072 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3074 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3075 params.plink_action =
3076 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3078 if (!rdev->ops->add_station)
3081 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3084 switch (dev->ieee80211_ptr->iftype) {
3085 case NL80211_IFTYPE_AP:
3086 case NL80211_IFTYPE_AP_VLAN:
3087 case NL80211_IFTYPE_P2P_GO:
3088 /* parse WME attributes if sta is WME capable */
3089 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3090 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3091 info->attrs[NL80211_ATTR_STA_WME]) {
3092 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3095 nla = info->attrs[NL80211_ATTR_STA_WME];
3096 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3097 nl80211_sta_wme_policy);
3101 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3102 params.uapsd_queues =
3103 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3104 if (params.uapsd_queues &
3105 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3108 if (tb[NL80211_STA_WME_MAX_SP])
3110 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3113 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3116 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3118 /* TDLS peers cannot be added */
3119 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3121 /* but don't bother the driver with it */
3122 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3124 /* must be last in here for error handling */
3125 params.vlan = get_vlan(info, rdev);
3126 if (IS_ERR(params.vlan))
3127 return PTR_ERR(params.vlan);
3129 case NL80211_IFTYPE_MESH_POINT:
3130 /* TDLS peers cannot be added */
3131 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3134 case NL80211_IFTYPE_STATION:
3135 /* Only TDLS peers can be added */
3136 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3138 /* Can only add if TDLS ... */
3139 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3141 /* ... with external setup is supported */
3142 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3149 /* be aware of params.vlan when changing code here */
3151 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3154 dev_put(params.vlan);
3158 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3160 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3161 struct net_device *dev = info->user_ptr[1];
3162 u8 *mac_addr = NULL;
3164 if (info->attrs[NL80211_ATTR_MAC])
3165 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3167 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3168 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3169 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3170 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3173 if (!rdev->ops->del_station)
3176 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3179 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3180 int flags, struct net_device *dev,
3181 u8 *dst, u8 *next_hop,
3182 struct mpath_info *pinfo)
3185 struct nlattr *pinfoattr;
3187 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3191 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3192 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3193 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3194 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3195 goto nla_put_failure;
3197 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3199 goto nla_put_failure;
3200 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3201 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3203 goto nla_put_failure;
3204 if (((pinfo->filled & MPATH_INFO_SN) &&
3205 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3206 ((pinfo->filled & MPATH_INFO_METRIC) &&
3207 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3209 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3210 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3212 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3213 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3215 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3216 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3217 pinfo->discovery_timeout)) ||
3218 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3219 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3220 pinfo->discovery_retries)))
3221 goto nla_put_failure;
3223 nla_nest_end(msg, pinfoattr);
3225 return genlmsg_end(msg, hdr);
3228 genlmsg_cancel(msg, hdr);
3232 static int nl80211_dump_mpath(struct sk_buff *skb,
3233 struct netlink_callback *cb)
3235 struct mpath_info pinfo;
3236 struct cfg80211_registered_device *dev;
3237 struct net_device *netdev;
3239 u8 next_hop[ETH_ALEN];
3240 int path_idx = cb->args[1];
3243 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3247 if (!dev->ops->dump_mpath) {
3252 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3258 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3259 dst, next_hop, &pinfo);
3265 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3266 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3267 netdev, dst, next_hop,
3276 cb->args[1] = path_idx;
3279 nl80211_finish_netdev_dump(dev);
3283 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3287 struct net_device *dev = info->user_ptr[1];
3288 struct mpath_info pinfo;
3289 struct sk_buff *msg;
3291 u8 next_hop[ETH_ALEN];
3293 memset(&pinfo, 0, sizeof(pinfo));
3295 if (!info->attrs[NL80211_ATTR_MAC])
3298 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3300 if (!rdev->ops->get_mpath)
3303 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3306 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3310 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3314 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3315 dev, dst, next_hop, &pinfo) < 0) {
3320 return genlmsg_reply(msg, info);
3323 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3326 struct net_device *dev = info->user_ptr[1];
3328 u8 *next_hop = NULL;
3330 if (!info->attrs[NL80211_ATTR_MAC])
3333 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3336 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3337 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3339 if (!rdev->ops->change_mpath)
3342 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3345 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3348 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3351 struct net_device *dev = info->user_ptr[1];
3353 u8 *next_hop = NULL;
3355 if (!info->attrs[NL80211_ATTR_MAC])
3358 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3361 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3362 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3364 if (!rdev->ops->add_mpath)
3367 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3370 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3373 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3376 struct net_device *dev = info->user_ptr[1];
3379 if (info->attrs[NL80211_ATTR_MAC])
3380 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3382 if (!rdev->ops->del_mpath)
3385 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3388 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3391 struct net_device *dev = info->user_ptr[1];
3392 struct bss_parameters params;
3394 memset(¶ms, 0, sizeof(params));
3395 /* default to not changing parameters */
3396 params.use_cts_prot = -1;
3397 params.use_short_preamble = -1;
3398 params.use_short_slot_time = -1;
3399 params.ap_isolate = -1;
3400 params.ht_opmode = -1;
3402 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3403 params.use_cts_prot =
3404 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3405 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3406 params.use_short_preamble =
3407 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3408 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3409 params.use_short_slot_time =
3410 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3411 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3412 params.basic_rates =
3413 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3414 params.basic_rates_len =
3415 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3417 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3418 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3419 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3421 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3423 if (!rdev->ops->change_bss)
3426 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3427 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3430 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3433 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3434 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3435 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3436 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3437 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3438 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3439 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3442 static int parse_reg_rule(struct nlattr *tb[],
3443 struct ieee80211_reg_rule *reg_rule)
3445 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3446 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3448 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3450 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3452 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3454 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3456 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3459 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3461 freq_range->start_freq_khz =
3462 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3463 freq_range->end_freq_khz =
3464 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3465 freq_range->max_bandwidth_khz =
3466 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3468 power_rule->max_eirp =
3469 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3471 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3472 power_rule->max_antenna_gain =
3473 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3478 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3484 * You should only get this when cfg80211 hasn't yet initialized
3485 * completely when built-in to the kernel right between the time
3486 * window between nl80211_init() and regulatory_init(), if that is
3489 mutex_lock(&cfg80211_mutex);
3490 if (unlikely(!cfg80211_regdomain)) {
3491 mutex_unlock(&cfg80211_mutex);
3492 return -EINPROGRESS;
3494 mutex_unlock(&cfg80211_mutex);
3496 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3499 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3501 r = regulatory_hint_user(data);
3506 static int nl80211_get_mesh_config(struct sk_buff *skb,
3507 struct genl_info *info)
3509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3510 struct net_device *dev = info->user_ptr[1];
3511 struct wireless_dev *wdev = dev->ieee80211_ptr;
3512 struct mesh_config cur_params;
3515 struct nlattr *pinfoattr;
3516 struct sk_buff *msg;
3518 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3521 if (!rdev->ops->get_mesh_config)
3525 /* If not connected, get default parameters */
3526 if (!wdev->mesh_id_len)
3527 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3529 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3536 /* Draw up a netlink message to send back */
3537 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3540 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3541 NL80211_CMD_GET_MESH_CONFIG);
3544 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3546 goto nla_put_failure;
3547 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3548 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3549 cur_params.dot11MeshRetryTimeout) ||
3550 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3551 cur_params.dot11MeshConfirmTimeout) ||
3552 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3553 cur_params.dot11MeshHoldingTimeout) ||
3554 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3555 cur_params.dot11MeshMaxPeerLinks) ||
3556 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3557 cur_params.dot11MeshMaxRetries) ||
3558 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3559 cur_params.dot11MeshTTL) ||
3560 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3561 cur_params.element_ttl) ||
3562 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3563 cur_params.auto_open_plinks) ||
3564 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3565 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3566 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3567 cur_params.dot11MeshHWMPmaxPREQretries) ||
3568 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3569 cur_params.path_refresh_time) ||
3570 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3571 cur_params.min_discovery_timeout) ||
3572 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3573 cur_params.dot11MeshHWMPactivePathTimeout) ||
3574 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3575 cur_params.dot11MeshHWMPpreqMinInterval) ||
3576 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3577 cur_params.dot11MeshHWMPperrMinInterval) ||
3578 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3579 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3580 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3581 cur_params.dot11MeshHWMPRootMode) ||
3582 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3583 cur_params.dot11MeshHWMPRannInterval) ||
3584 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3585 cur_params.dot11MeshGateAnnouncementProtocol) ||
3586 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3587 cur_params.dot11MeshForwarding) ||
3588 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3589 cur_params.rssi_threshold) ||
3590 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3591 cur_params.ht_opmode) ||
3592 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3593 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3594 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3595 cur_params.dot11MeshHWMProotInterval) ||
3596 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3597 cur_params.dot11MeshHWMPconfirmationInterval))
3598 goto nla_put_failure;
3599 nla_nest_end(msg, pinfoattr);
3600 genlmsg_end(msg, hdr);
3601 return genlmsg_reply(msg, info);
3604 genlmsg_cancel(msg, hdr);
3610 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3611 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3612 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3613 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3614 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3615 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3616 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3617 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3618 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3619 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3620 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3621 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3622 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3623 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3624 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3625 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3626 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3627 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3628 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3629 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3630 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3631 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3632 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3633 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3634 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3635 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3638 static const struct nla_policy
3639 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3640 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3641 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3642 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3643 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3644 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3645 .len = IEEE80211_MAX_DATA_LEN },
3646 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3649 static int nl80211_parse_mesh_config(struct genl_info *info,
3650 struct mesh_config *cfg,
3653 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3656 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3658 if (table[attr_num]) {\
3659 cfg->param = nla_fn(table[attr_num]); \
3660 mask |= (1 << (attr_num - 1)); \
3665 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3667 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3668 info->attrs[NL80211_ATTR_MESH_CONFIG],
3669 nl80211_meshconf_params_policy))
3672 /* This makes sure that there aren't more than 32 mesh config
3673 * parameters (otherwise our bitfield scheme would not work.) */
3674 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3676 /* Fill in the params struct */
3677 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3678 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3680 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3681 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3683 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3684 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3686 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3687 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3689 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3690 mask, NL80211_MESHCONF_MAX_RETRIES,
3692 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3693 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3694 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3695 mask, NL80211_MESHCONF_ELEMENT_TTL,
3697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3698 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3701 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3704 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3707 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3710 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3712 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3713 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3716 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3718 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3719 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3722 dot11MeshHWMPnetDiameterTraversalTime, mask,
3723 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3725 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3726 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3727 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3728 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3730 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3731 dot11MeshGateAnnouncementProtocol, mask,
3732 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3734 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3735 mask, NL80211_MESHCONF_FORWARDING,
3737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3738 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3740 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3741 mask, NL80211_MESHCONF_HT_OPMODE,
3743 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3745 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3747 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3748 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3750 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3751 dot11MeshHWMPconfirmationInterval, mask,
3752 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3759 #undef FILL_IN_MESH_PARAM_IF_SET
3762 static int nl80211_parse_mesh_setup(struct genl_info *info,
3763 struct mesh_setup *setup)
3765 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3767 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3769 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3770 info->attrs[NL80211_ATTR_MESH_SETUP],
3771 nl80211_mesh_setup_params_policy))
3774 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3775 setup->sync_method =
3776 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3777 IEEE80211_SYNC_METHOD_VENDOR :
3778 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3780 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3781 setup->path_sel_proto =
3782 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3783 IEEE80211_PATH_PROTOCOL_VENDOR :
3784 IEEE80211_PATH_PROTOCOL_HWMP;
3786 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3787 setup->path_metric =
3788 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3789 IEEE80211_PATH_METRIC_VENDOR :
3790 IEEE80211_PATH_METRIC_AIRTIME;
3793 if (tb[NL80211_MESH_SETUP_IE]) {
3794 struct nlattr *ieattr =
3795 tb[NL80211_MESH_SETUP_IE];
3796 if (!is_valid_ie_attr(ieattr))
3798 setup->ie = nla_data(ieattr);
3799 setup->ie_len = nla_len(ieattr);
3801 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3802 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3807 static int nl80211_update_mesh_config(struct sk_buff *skb,
3808 struct genl_info *info)
3810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3811 struct net_device *dev = info->user_ptr[1];
3812 struct wireless_dev *wdev = dev->ieee80211_ptr;
3813 struct mesh_config cfg;
3817 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3820 if (!rdev->ops->update_mesh_config)
3823 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3828 if (!wdev->mesh_id_len)
3832 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3840 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3842 struct sk_buff *msg;
3844 struct nlattr *nl_reg_rules;
3848 mutex_lock(&cfg80211_mutex);
3850 if (!cfg80211_regdomain)
3853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3859 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3860 NL80211_CMD_GET_REG);
3864 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3865 cfg80211_regdomain->alpha2) ||
3866 (cfg80211_regdomain->dfs_region &&
3867 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3868 cfg80211_regdomain->dfs_region)))
3869 goto nla_put_failure;
3871 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3873 goto nla_put_failure;
3875 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3876 struct nlattr *nl_reg_rule;
3877 const struct ieee80211_reg_rule *reg_rule;
3878 const struct ieee80211_freq_range *freq_range;
3879 const struct ieee80211_power_rule *power_rule;
3881 reg_rule = &cfg80211_regdomain->reg_rules[i];
3882 freq_range = ®_rule->freq_range;
3883 power_rule = ®_rule->power_rule;
3885 nl_reg_rule = nla_nest_start(msg, i);
3887 goto nla_put_failure;
3889 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3891 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3892 freq_range->start_freq_khz) ||
3893 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3894 freq_range->end_freq_khz) ||
3895 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3896 freq_range->max_bandwidth_khz) ||
3897 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3898 power_rule->max_antenna_gain) ||
3899 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3900 power_rule->max_eirp))
3901 goto nla_put_failure;
3903 nla_nest_end(msg, nl_reg_rule);
3906 nla_nest_end(msg, nl_reg_rules);
3908 genlmsg_end(msg, hdr);
3909 err = genlmsg_reply(msg, info);
3913 genlmsg_cancel(msg, hdr);
3918 mutex_unlock(&cfg80211_mutex);
3922 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3924 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3925 struct nlattr *nl_reg_rule;
3926 char *alpha2 = NULL;
3927 int rem_reg_rules = 0, r = 0;
3928 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3930 struct ieee80211_regdomain *rd = NULL;
3932 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3935 if (!info->attrs[NL80211_ATTR_REG_RULES])
3938 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3940 if (info->attrs[NL80211_ATTR_DFS_REGION])
3941 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3943 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3946 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3950 mutex_lock(&cfg80211_mutex);
3952 if (!reg_is_valid_request(alpha2)) {
3957 size_of_regd = sizeof(struct ieee80211_regdomain) +
3958 (num_rules * sizeof(struct ieee80211_reg_rule));
3960 rd = kzalloc(size_of_regd, GFP_KERNEL);
3966 rd->n_reg_rules = num_rules;
3967 rd->alpha2[0] = alpha2[0];
3968 rd->alpha2[1] = alpha2[1];
3971 * Disable DFS master mode if the DFS region was
3972 * not supported or known on this kernel.
3974 if (reg_supported_dfs_region(dfs_region))
3975 rd->dfs_region = dfs_region;
3977 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3979 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3980 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3982 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3988 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3994 BUG_ON(rule_idx != num_rules);
3998 mutex_unlock(&cfg80211_mutex);
4003 mutex_unlock(&cfg80211_mutex);
4008 static int validate_scan_freqs(struct nlattr *freqs)
4010 struct nlattr *attr1, *attr2;
4011 int n_channels = 0, tmp1, tmp2;
4013 nla_for_each_nested(attr1, freqs, tmp1) {
4016 * Some hardware has a limited channel list for
4017 * scanning, and it is pretty much nonsensical
4018 * to scan for a channel twice, so disallow that
4019 * and don't require drivers to check that the
4020 * channel list they get isn't longer than what
4021 * they can scan, as long as they can scan all
4022 * the channels they registered at once.
4024 nla_for_each_nested(attr2, freqs, tmp2)
4025 if (attr1 != attr2 &&
4026 nla_get_u32(attr1) == nla_get_u32(attr2))
4033 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4036 struct net_device *dev = info->user_ptr[1];
4037 struct cfg80211_scan_request *request;
4038 struct nlattr *attr;
4039 struct wiphy *wiphy;
4040 int err, tmp, n_ssids = 0, n_channels, i;
4043 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4046 wiphy = &rdev->wiphy;
4048 if (!rdev->ops->scan)
4054 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4055 n_channels = validate_scan_freqs(
4056 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4060 enum ieee80211_band band;
4063 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4064 if (wiphy->bands[band])
4065 n_channels += wiphy->bands[band]->n_channels;
4068 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4069 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4072 if (n_ssids > wiphy->max_scan_ssids)
4075 if (info->attrs[NL80211_ATTR_IE])
4076 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4080 if (ie_len > wiphy->max_scan_ie_len)
4083 request = kzalloc(sizeof(*request)
4084 + sizeof(*request->ssids) * n_ssids
4085 + sizeof(*request->channels) * n_channels
4086 + ie_len, GFP_KERNEL);
4091 request->ssids = (void *)&request->channels[n_channels];
4092 request->n_ssids = n_ssids;
4095 request->ie = (void *)(request->ssids + n_ssids);
4097 request->ie = (void *)(request->channels + n_channels);
4101 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4102 /* user specified, bail out if channel not found */
4103 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4104 struct ieee80211_channel *chan;
4106 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4113 /* ignore disabled channels */
4114 if (chan->flags & IEEE80211_CHAN_DISABLED)
4117 request->channels[i] = chan;
4121 enum ieee80211_band band;
4124 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4126 if (!wiphy->bands[band])
4128 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4129 struct ieee80211_channel *chan;
4131 chan = &wiphy->bands[band]->channels[j];
4133 if (chan->flags & IEEE80211_CHAN_DISABLED)
4136 request->channels[i] = chan;
4147 request->n_channels = i;
4150 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4151 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4152 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4156 request->ssids[i].ssid_len = nla_len(attr);
4157 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4162 if (info->attrs[NL80211_ATTR_IE]) {
4163 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4164 memcpy((void *)request->ie,
4165 nla_data(info->attrs[NL80211_ATTR_IE]),
4169 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4170 if (wiphy->bands[i])
4172 (1 << wiphy->bands[i]->n_bitrates) - 1;
4174 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4175 nla_for_each_nested(attr,
4176 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4178 enum ieee80211_band band = nla_type(attr);
4180 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4184 err = ieee80211_get_ratemask(wiphy->bands[band],
4187 &request->rates[band]);
4194 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4197 request->wiphy = &rdev->wiphy;
4199 rdev->scan_req = request;
4200 err = rdev->ops->scan(&rdev->wiphy, dev, request);
4203 nl80211_send_scan_start(rdev, dev);
4207 rdev->scan_req = NULL;
4214 static int nl80211_start_sched_scan(struct sk_buff *skb,
4215 struct genl_info *info)
4217 struct cfg80211_sched_scan_request *request;
4218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4219 struct net_device *dev = info->user_ptr[1];
4220 struct nlattr *attr;
4221 struct wiphy *wiphy;
4222 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4224 enum ieee80211_band band;
4226 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4228 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4229 !rdev->ops->sched_scan_start)
4232 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4235 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4238 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4242 wiphy = &rdev->wiphy;
4244 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4245 n_channels = validate_scan_freqs(
4246 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4252 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4253 if (wiphy->bands[band])
4254 n_channels += wiphy->bands[band]->n_channels;
4257 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4258 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4262 if (n_ssids > wiphy->max_sched_scan_ssids)
4265 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4266 nla_for_each_nested(attr,
4267 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4271 if (n_match_sets > wiphy->max_match_sets)
4274 if (info->attrs[NL80211_ATTR_IE])
4275 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4279 if (ie_len > wiphy->max_sched_scan_ie_len)
4282 mutex_lock(&rdev->sched_scan_mtx);
4284 if (rdev->sched_scan_req) {
4289 request = kzalloc(sizeof(*request)
4290 + sizeof(*request->ssids) * n_ssids
4291 + sizeof(*request->match_sets) * n_match_sets
4292 + sizeof(*request->channels) * n_channels
4293 + ie_len, GFP_KERNEL);
4300 request->ssids = (void *)&request->channels[n_channels];
4301 request->n_ssids = n_ssids;
4304 request->ie = (void *)(request->ssids + n_ssids);
4306 request->ie = (void *)(request->channels + n_channels);
4311 request->match_sets = (void *)(request->ie + ie_len);
4312 else if (request->ssids)
4313 request->match_sets =
4314 (void *)(request->ssids + n_ssids);
4316 request->match_sets =
4317 (void *)(request->channels + n_channels);
4319 request->n_match_sets = n_match_sets;
4322 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4323 /* user specified, bail out if channel not found */
4324 nla_for_each_nested(attr,
4325 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4327 struct ieee80211_channel *chan;
4329 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4336 /* ignore disabled channels */
4337 if (chan->flags & IEEE80211_CHAN_DISABLED)
4340 request->channels[i] = chan;
4345 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4347 if (!wiphy->bands[band])
4349 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4350 struct ieee80211_channel *chan;
4352 chan = &wiphy->bands[band]->channels[j];
4354 if (chan->flags & IEEE80211_CHAN_DISABLED)
4357 request->channels[i] = chan;
4368 request->n_channels = i;
4371 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4372 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4374 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4378 request->ssids[i].ssid_len = nla_len(attr);
4379 memcpy(request->ssids[i].ssid, nla_data(attr),
4386 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4387 nla_for_each_nested(attr,
4388 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4390 struct nlattr *ssid;
4392 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4393 nla_data(attr), nla_len(attr),
4394 nl80211_match_policy);
4395 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4397 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4401 memcpy(request->match_sets[i].ssid.ssid,
4402 nla_data(ssid), nla_len(ssid));
4403 request->match_sets[i].ssid.ssid_len =
4410 if (info->attrs[NL80211_ATTR_IE]) {
4411 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4412 memcpy((void *)request->ie,
4413 nla_data(info->attrs[NL80211_ATTR_IE]),
4418 request->wiphy = &rdev->wiphy;
4419 request->interval = interval;
4421 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4423 rdev->sched_scan_req = request;
4424 nl80211_send_sched_scan(rdev, dev,
4425 NL80211_CMD_START_SCHED_SCAN);
4432 mutex_unlock(&rdev->sched_scan_mtx);
4436 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4437 struct genl_info *info)
4439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4442 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4443 !rdev->ops->sched_scan_stop)
4446 mutex_lock(&rdev->sched_scan_mtx);
4447 err = __cfg80211_stop_sched_scan(rdev, false);
4448 mutex_unlock(&rdev->sched_scan_mtx);
4453 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4455 struct cfg80211_registered_device *rdev,
4456 struct wireless_dev *wdev,
4457 struct cfg80211_internal_bss *intbss)
4459 struct cfg80211_bss *res = &intbss->pub;
4463 ASSERT_WDEV_LOCK(wdev);
4465 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4466 NL80211_CMD_NEW_SCAN_RESULTS);
4470 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4472 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4473 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4474 goto nla_put_failure;
4476 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4478 goto nla_put_failure;
4479 if ((!is_zero_ether_addr(res->bssid) &&
4480 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4481 (res->information_elements && res->len_information_elements &&
4482 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4483 res->len_information_elements,
4484 res->information_elements)) ||
4485 (res->beacon_ies && res->len_beacon_ies &&
4486 res->beacon_ies != res->information_elements &&
4487 nla_put(msg, NL80211_BSS_BEACON_IES,
4488 res->len_beacon_ies, res->beacon_ies)))
4489 goto nla_put_failure;
4491 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4492 goto nla_put_failure;
4493 if (res->beacon_interval &&
4494 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4495 goto nla_put_failure;
4496 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4497 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4498 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4499 jiffies_to_msecs(jiffies - intbss->ts)))
4500 goto nla_put_failure;
4502 switch (rdev->wiphy.signal_type) {
4503 case CFG80211_SIGNAL_TYPE_MBM:
4504 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4505 goto nla_put_failure;
4507 case CFG80211_SIGNAL_TYPE_UNSPEC:
4508 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4509 goto nla_put_failure;
4515 switch (wdev->iftype) {
4516 case NL80211_IFTYPE_P2P_CLIENT:
4517 case NL80211_IFTYPE_STATION:
4518 if (intbss == wdev->current_bss &&
4519 nla_put_u32(msg, NL80211_BSS_STATUS,
4520 NL80211_BSS_STATUS_ASSOCIATED))
4521 goto nla_put_failure;
4523 case NL80211_IFTYPE_ADHOC:
4524 if (intbss == wdev->current_bss &&
4525 nla_put_u32(msg, NL80211_BSS_STATUS,
4526 NL80211_BSS_STATUS_IBSS_JOINED))
4527 goto nla_put_failure;
4533 nla_nest_end(msg, bss);
4535 return genlmsg_end(msg, hdr);
4538 genlmsg_cancel(msg, hdr);
4542 static int nl80211_dump_scan(struct sk_buff *skb,
4543 struct netlink_callback *cb)
4545 struct cfg80211_registered_device *rdev;
4546 struct net_device *dev;
4547 struct cfg80211_internal_bss *scan;
4548 struct wireless_dev *wdev;
4549 int start = cb->args[1], idx = 0;
4552 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4556 wdev = dev->ieee80211_ptr;
4559 spin_lock_bh(&rdev->bss_lock);
4560 cfg80211_bss_expire(rdev);
4562 cb->seq = rdev->bss_generation;
4564 list_for_each_entry(scan, &rdev->bss_list, list) {
4567 if (nl80211_send_bss(skb, cb,
4568 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4569 rdev, wdev, scan) < 0) {
4575 spin_unlock_bh(&rdev->bss_lock);
4579 nl80211_finish_netdev_dump(rdev);
4584 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4585 int flags, struct net_device *dev,
4586 struct survey_info *survey)
4589 struct nlattr *infoattr;
4591 hdr = nl80211hdr_put(msg, pid, seq, flags,
4592 NL80211_CMD_NEW_SURVEY_RESULTS);
4596 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4597 goto nla_put_failure;
4599 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4601 goto nla_put_failure;
4603 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4604 survey->channel->center_freq))
4605 goto nla_put_failure;
4607 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4608 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4609 goto nla_put_failure;
4610 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4611 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4612 goto nla_put_failure;
4613 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4614 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4615 survey->channel_time))
4616 goto nla_put_failure;
4617 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4618 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4619 survey->channel_time_busy))
4620 goto nla_put_failure;
4621 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4622 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4623 survey->channel_time_ext_busy))
4624 goto nla_put_failure;
4625 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4626 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4627 survey->channel_time_rx))
4628 goto nla_put_failure;
4629 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4630 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4631 survey->channel_time_tx))
4632 goto nla_put_failure;
4634 nla_nest_end(msg, infoattr);
4636 return genlmsg_end(msg, hdr);
4639 genlmsg_cancel(msg, hdr);
4643 static int nl80211_dump_survey(struct sk_buff *skb,
4644 struct netlink_callback *cb)
4646 struct survey_info survey;
4647 struct cfg80211_registered_device *dev;
4648 struct net_device *netdev;
4649 int survey_idx = cb->args[1];
4652 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4656 if (!dev->ops->dump_survey) {
4662 struct ieee80211_channel *chan;
4664 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4671 /* Survey without a channel doesn't make sense */
4672 if (!survey.channel) {
4677 chan = ieee80211_get_channel(&dev->wiphy,
4678 survey.channel->center_freq);
4679 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4684 if (nl80211_send_survey(skb,
4685 NETLINK_CB(cb->skb).pid,
4686 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4694 cb->args[1] = survey_idx;
4697 nl80211_finish_netdev_dump(dev);
4701 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4703 return auth_type <= NL80211_AUTHTYPE_MAX;
4706 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4708 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4709 NL80211_WPA_VERSION_2));
4712 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4715 struct net_device *dev = info->user_ptr[1];
4716 struct ieee80211_channel *chan;
4717 const u8 *bssid, *ssid, *ie = NULL;
4718 int err, ssid_len, ie_len = 0;
4719 enum nl80211_auth_type auth_type;
4720 struct key_parse key;
4721 bool local_state_change;
4723 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4726 if (!info->attrs[NL80211_ATTR_MAC])
4729 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4732 if (!info->attrs[NL80211_ATTR_SSID])
4735 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4738 err = nl80211_parse_key(info, &key);
4743 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4745 if (!key.p.key || !key.p.key_len)
4747 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4748 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4749 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4750 key.p.key_len != WLAN_KEY_LEN_WEP104))
4762 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4763 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4772 if (!rdev->ops->auth)
4775 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4776 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4779 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4780 chan = ieee80211_get_channel(&rdev->wiphy,
4781 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4782 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4785 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4786 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4788 if (info->attrs[NL80211_ATTR_IE]) {
4789 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4790 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4793 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4794 if (!nl80211_valid_auth_type(auth_type))
4797 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4800 * Since we no longer track auth state, ignore
4801 * requests to only change local state.
4803 if (local_state_change)
4806 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4807 ssid, ssid_len, ie, ie_len,
4808 key.p.key, key.p.key_len, key.idx);
4811 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4812 struct genl_info *info,
4813 struct cfg80211_crypto_settings *settings,
4816 memset(settings, 0, sizeof(*settings));
4818 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4820 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4822 proto = nla_get_u16(
4823 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4824 settings->control_port_ethertype = cpu_to_be16(proto);
4825 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4828 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4829 settings->control_port_no_encrypt = true;
4831 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4833 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4837 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4838 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4839 settings->n_ciphers_pairwise = len / sizeof(u32);
4841 if (len % sizeof(u32))
4844 if (settings->n_ciphers_pairwise > cipher_limit)
4847 memcpy(settings->ciphers_pairwise, data, len);
4849 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4850 if (!cfg80211_supported_cipher_suite(
4852 settings->ciphers_pairwise[i]))
4856 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4857 settings->cipher_group =
4858 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4859 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4860 settings->cipher_group))
4864 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4865 settings->wpa_versions =
4866 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4867 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4871 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4875 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4876 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4877 settings->n_akm_suites = len / sizeof(u32);
4879 if (len % sizeof(u32))
4882 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4885 memcpy(settings->akm_suites, data, len);
4891 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4894 struct net_device *dev = info->user_ptr[1];
4895 struct cfg80211_crypto_settings crypto;
4896 struct ieee80211_channel *chan;
4897 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4898 int err, ssid_len, ie_len = 0;
4899 bool use_mfp = false;
4901 struct ieee80211_ht_cap *ht_capa = NULL;
4902 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4904 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4907 if (!info->attrs[NL80211_ATTR_MAC] ||
4908 !info->attrs[NL80211_ATTR_SSID] ||
4909 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4912 if (!rdev->ops->assoc)
4915 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4916 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4919 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4921 chan = ieee80211_get_channel(&rdev->wiphy,
4922 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4923 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4926 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4927 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4929 if (info->attrs[NL80211_ATTR_IE]) {
4930 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4931 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4934 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4935 enum nl80211_mfp mfp =
4936 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4937 if (mfp == NL80211_MFP_REQUIRED)
4939 else if (mfp != NL80211_MFP_NO)
4943 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4944 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4946 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4947 flags |= ASSOC_REQ_DISABLE_HT;
4949 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4951 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4953 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4956 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4959 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4961 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4962 ssid, ssid_len, ie, ie_len, use_mfp,
4963 &crypto, flags, ht_capa,
4969 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4972 struct net_device *dev = info->user_ptr[1];
4973 const u8 *ie = NULL, *bssid;
4976 bool local_state_change;
4978 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4981 if (!info->attrs[NL80211_ATTR_MAC])
4984 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4987 if (!rdev->ops->deauth)
4990 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4991 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4994 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4996 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4997 if (reason_code == 0) {
4998 /* Reason Code 0 is reserved */
5002 if (info->attrs[NL80211_ATTR_IE]) {
5003 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5004 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5007 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5009 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5010 local_state_change);
5013 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5015 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5016 struct net_device *dev = info->user_ptr[1];
5017 const u8 *ie = NULL, *bssid;
5020 bool local_state_change;
5022 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5025 if (!info->attrs[NL80211_ATTR_MAC])
5028 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5031 if (!rdev->ops->disassoc)
5034 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5035 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5038 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5040 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5041 if (reason_code == 0) {
5042 /* Reason Code 0 is reserved */
5046 if (info->attrs[NL80211_ATTR_IE]) {
5047 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5048 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5051 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5053 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5054 local_state_change);
5058 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5059 int mcast_rate[IEEE80211_NUM_BANDS],
5062 struct wiphy *wiphy = &rdev->wiphy;
5066 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5067 struct ieee80211_supported_band *sband;
5069 sband = wiphy->bands[band];
5073 for (i = 0; i < sband->n_bitrates; i++) {
5074 if (sband->bitrates[i].bitrate == rateval) {
5075 mcast_rate[band] = i + 1;
5085 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5088 struct net_device *dev = info->user_ptr[1];
5089 struct cfg80211_ibss_params ibss;
5090 struct wiphy *wiphy;
5091 struct cfg80211_cached_keys *connkeys = NULL;
5094 memset(&ibss, 0, sizeof(ibss));
5096 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5099 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5100 !info->attrs[NL80211_ATTR_SSID] ||
5101 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5104 ibss.beacon_interval = 100;
5106 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5107 ibss.beacon_interval =
5108 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5109 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5113 if (!rdev->ops->join_ibss)
5116 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5119 wiphy = &rdev->wiphy;
5121 if (info->attrs[NL80211_ATTR_MAC]) {
5122 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5124 if (!is_valid_ether_addr(ibss.bssid))
5127 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5128 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5130 if (info->attrs[NL80211_ATTR_IE]) {
5131 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5132 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5135 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5136 enum nl80211_channel_type channel_type;
5138 if (!nl80211_valid_channel_type(info, &channel_type))
5141 if (channel_type != NL80211_CHAN_NO_HT &&
5142 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5145 ibss.channel_type = channel_type;
5147 ibss.channel_type = NL80211_CHAN_NO_HT;
5150 ibss.channel = rdev_freq_to_chan(rdev,
5151 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5153 if (!ibss.channel ||
5154 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5155 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5158 /* Both channels should be able to initiate communication */
5159 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5160 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5161 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5165 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5166 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5168 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5170 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5172 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5173 struct ieee80211_supported_band *sband =
5174 wiphy->bands[ibss.channel->band];
5176 err = ieee80211_get_ratemask(sband, rates, n_rates,
5182 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5183 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5184 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5187 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5188 connkeys = nl80211_parse_connkeys(rdev,
5189 info->attrs[NL80211_ATTR_KEYS]);
5190 if (IS_ERR(connkeys))
5191 return PTR_ERR(connkeys);
5195 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5197 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5203 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5205 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5206 struct net_device *dev = info->user_ptr[1];
5208 if (!rdev->ops->leave_ibss)
5211 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5214 return cfg80211_leave_ibss(rdev, dev, false);
5217 #ifdef CONFIG_NL80211_TESTMODE
5218 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5222 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5227 if (!info->attrs[NL80211_ATTR_TESTDATA])
5231 if (rdev->ops->testmode_cmd) {
5232 rdev->testmode_info = info;
5233 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5234 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5235 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5236 rdev->testmode_info = NULL;
5242 static int nl80211_testmode_dump(struct sk_buff *skb,
5243 struct netlink_callback *cb)
5245 struct cfg80211_registered_device *rdev;
5253 * 0 is a valid index, but not valid for args[0],
5254 * so we need to offset by 1.
5256 phy_idx = cb->args[0] - 1;
5258 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5259 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5264 mutex_lock(&cfg80211_mutex);
5265 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5266 nl80211_fam.attrbuf);
5268 mutex_unlock(&cfg80211_mutex);
5269 return PTR_ERR(rdev);
5271 phy_idx = rdev->wiphy_idx;
5273 mutex_unlock(&cfg80211_mutex);
5275 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5277 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5281 data = nla_data((void *)cb->args[1]);
5282 data_len = nla_len((void *)cb->args[1]);
5285 mutex_lock(&cfg80211_mutex);
5286 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5288 mutex_unlock(&cfg80211_mutex);
5291 cfg80211_lock_rdev(rdev);
5292 mutex_unlock(&cfg80211_mutex);
5294 if (!rdev->ops->testmode_dump) {
5300 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5301 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5302 NL80211_CMD_TESTMODE);
5303 struct nlattr *tmdata;
5305 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5306 genlmsg_cancel(skb, hdr);
5310 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5312 genlmsg_cancel(skb, hdr);
5315 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5317 nla_nest_end(skb, tmdata);
5319 if (err == -ENOBUFS || err == -ENOENT) {
5320 genlmsg_cancel(skb, hdr);
5323 genlmsg_cancel(skb, hdr);
5327 genlmsg_end(skb, hdr);
5332 cb->args[0] = phy_idx + 1;
5334 cfg80211_unlock_rdev(rdev);
5338 static struct sk_buff *
5339 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5340 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5342 struct sk_buff *skb;
5344 struct nlattr *data;
5346 skb = nlmsg_new(approxlen + 100, gfp);
5350 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5356 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5357 goto nla_put_failure;
5358 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5360 ((void **)skb->cb)[0] = rdev;
5361 ((void **)skb->cb)[1] = hdr;
5362 ((void **)skb->cb)[2] = data;
5371 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5374 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5376 if (WARN_ON(!rdev->testmode_info))
5379 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5380 rdev->testmode_info->snd_pid,
5381 rdev->testmode_info->snd_seq,
5384 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5386 int cfg80211_testmode_reply(struct sk_buff *skb)
5388 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5389 void *hdr = ((void **)skb->cb)[1];
5390 struct nlattr *data = ((void **)skb->cb)[2];
5392 if (WARN_ON(!rdev->testmode_info)) {
5397 nla_nest_end(skb, data);
5398 genlmsg_end(skb, hdr);
5399 return genlmsg_reply(skb, rdev->testmode_info);
5401 EXPORT_SYMBOL(cfg80211_testmode_reply);
5403 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5404 int approxlen, gfp_t gfp)
5406 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5408 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5410 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5412 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5414 void *hdr = ((void **)skb->cb)[1];
5415 struct nlattr *data = ((void **)skb->cb)[2];
5417 nla_nest_end(skb, data);
5418 genlmsg_end(skb, hdr);
5419 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5421 EXPORT_SYMBOL(cfg80211_testmode_event);
5424 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5427 struct net_device *dev = info->user_ptr[1];
5428 struct cfg80211_connect_params connect;
5429 struct wiphy *wiphy;
5430 struct cfg80211_cached_keys *connkeys = NULL;
5433 memset(&connect, 0, sizeof(connect));
5435 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5438 if (!info->attrs[NL80211_ATTR_SSID] ||
5439 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5442 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5444 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5445 if (!nl80211_valid_auth_type(connect.auth_type))
5448 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5450 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5452 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5453 NL80211_MAX_NR_CIPHER_SUITES);
5457 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5458 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5461 wiphy = &rdev->wiphy;
5463 connect.bg_scan_period = -1;
5464 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5465 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5466 connect.bg_scan_period =
5467 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5470 if (info->attrs[NL80211_ATTR_MAC])
5471 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5472 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5473 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5475 if (info->attrs[NL80211_ATTR_IE]) {
5476 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5477 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5480 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5482 ieee80211_get_channel(wiphy,
5483 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5484 if (!connect.channel ||
5485 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5489 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5490 connkeys = nl80211_parse_connkeys(rdev,
5491 info->attrs[NL80211_ATTR_KEYS]);
5492 if (IS_ERR(connkeys))
5493 return PTR_ERR(connkeys);
5496 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5497 connect.flags |= ASSOC_REQ_DISABLE_HT;
5499 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5500 memcpy(&connect.ht_capa_mask,
5501 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5502 sizeof(connect.ht_capa_mask));
5504 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5505 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5507 memcpy(&connect.ht_capa,
5508 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5509 sizeof(connect.ht_capa));
5512 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5518 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5521 struct net_device *dev = info->user_ptr[1];
5524 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5525 reason = WLAN_REASON_DEAUTH_LEAVING;
5527 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5532 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5533 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5536 return cfg80211_disconnect(rdev, dev, reason, true);
5539 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5546 if (!info->attrs[NL80211_ATTR_PID])
5549 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5551 net = get_net_ns_by_pid(pid);
5553 return PTR_ERR(net);
5557 /* check if anything to do */
5558 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5559 err = cfg80211_switch_netns(rdev, net);
5565 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5567 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5568 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5569 struct cfg80211_pmksa *pmksa) = NULL;
5570 struct net_device *dev = info->user_ptr[1];
5571 struct cfg80211_pmksa pmksa;
5573 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5575 if (!info->attrs[NL80211_ATTR_MAC])
5578 if (!info->attrs[NL80211_ATTR_PMKID])
5581 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5582 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5585 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5588 switch (info->genlhdr->cmd) {
5589 case NL80211_CMD_SET_PMKSA:
5590 rdev_ops = rdev->ops->set_pmksa;
5592 case NL80211_CMD_DEL_PMKSA:
5593 rdev_ops = rdev->ops->del_pmksa;
5603 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5606 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5609 struct net_device *dev = info->user_ptr[1];
5611 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5612 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5615 if (!rdev->ops->flush_pmksa)
5618 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5621 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5624 struct net_device *dev = info->user_ptr[1];
5625 u8 action_code, dialog_token;
5629 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5630 !rdev->ops->tdls_mgmt)
5633 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5634 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5635 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5636 !info->attrs[NL80211_ATTR_IE] ||
5637 !info->attrs[NL80211_ATTR_MAC])
5640 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5641 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5642 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5643 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5645 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5646 dialog_token, status_code,
5647 nla_data(info->attrs[NL80211_ATTR_IE]),
5648 nla_len(info->attrs[NL80211_ATTR_IE]));
5651 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5654 struct net_device *dev = info->user_ptr[1];
5655 enum nl80211_tdls_operation operation;
5658 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5659 !rdev->ops->tdls_oper)
5662 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5663 !info->attrs[NL80211_ATTR_MAC])
5666 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5667 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5669 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5672 static int nl80211_remain_on_channel(struct sk_buff *skb,
5673 struct genl_info *info)
5675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5676 struct net_device *dev = info->user_ptr[1];
5677 struct ieee80211_channel *chan;
5678 struct sk_buff *msg;
5681 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5685 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5686 !info->attrs[NL80211_ATTR_DURATION])
5689 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5691 if (!rdev->ops->remain_on_channel ||
5692 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5696 * We should be on that channel for at least a minimum amount of
5697 * time (10ms) but no longer than the driver supports.
5699 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5700 duration > rdev->wiphy.max_remain_on_channel_duration)
5703 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5704 !nl80211_valid_channel_type(info, &channel_type))
5707 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5708 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5712 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5716 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5717 NL80211_CMD_REMAIN_ON_CHANNEL);
5724 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5725 channel_type, duration, &cookie);
5730 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5731 goto nla_put_failure;
5733 genlmsg_end(msg, hdr);
5735 return genlmsg_reply(msg, info);
5744 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5745 struct genl_info *info)
5747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5748 struct net_device *dev = info->user_ptr[1];
5751 if (!info->attrs[NL80211_ATTR_COOKIE])
5754 if (!rdev->ops->cancel_remain_on_channel)
5757 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5759 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5762 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5763 u8 *rates, u8 rates_len)
5768 for (i = 0; i < rates_len; i++) {
5769 int rate = (rates[i] & 0x7f) * 5;
5771 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5772 struct ieee80211_rate *srate =
5773 &sband->bitrates[ridx];
5774 if (rate == srate->bitrate) {
5779 if (ridx == sband->n_bitrates)
5780 return 0; /* rate not found */
5786 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5787 u8 *rates, u8 rates_len,
5788 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5792 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5794 for (i = 0; i < rates_len; i++) {
5797 ridx = rates[i] / 8;
5798 rbit = BIT(rates[i] % 8);
5800 /* check validity */
5801 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5804 /* check availability */
5805 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5814 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5815 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5816 .len = NL80211_MAX_SUPP_RATES },
5817 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5818 .len = NL80211_MAX_SUPP_HT_RATES },
5821 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5822 struct genl_info *info)
5824 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5825 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5826 struct cfg80211_bitrate_mask mask;
5828 struct net_device *dev = info->user_ptr[1];
5829 struct nlattr *tx_rates;
5830 struct ieee80211_supported_band *sband;
5832 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5835 if (!rdev->ops->set_bitrate_mask)
5838 memset(&mask, 0, sizeof(mask));
5839 /* Default to all rates enabled */
5840 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5841 sband = rdev->wiphy.bands[i];
5842 mask.control[i].legacy =
5843 sband ? (1 << sband->n_bitrates) - 1 : 0;
5845 memcpy(mask.control[i].mcs,
5846 sband->ht_cap.mcs.rx_mask,
5847 sizeof(mask.control[i].mcs));
5849 memset(mask.control[i].mcs, 0,
5850 sizeof(mask.control[i].mcs));
5854 * The nested attribute uses enum nl80211_band as the index. This maps
5855 * directly to the enum ieee80211_band values used in cfg80211.
5857 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5858 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5860 enum ieee80211_band band = nla_type(tx_rates);
5861 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5863 sband = rdev->wiphy.bands[band];
5866 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5867 nla_len(tx_rates), nl80211_txattr_policy);
5868 if (tb[NL80211_TXRATE_LEGACY]) {
5869 mask.control[band].legacy = rateset_to_mask(
5871 nla_data(tb[NL80211_TXRATE_LEGACY]),
5872 nla_len(tb[NL80211_TXRATE_LEGACY]));
5873 if ((mask.control[band].legacy == 0) &&
5874 nla_len(tb[NL80211_TXRATE_LEGACY]))
5877 if (tb[NL80211_TXRATE_MCS]) {
5878 if (!ht_rateset_to_mask(
5880 nla_data(tb[NL80211_TXRATE_MCS]),
5881 nla_len(tb[NL80211_TXRATE_MCS]),
5882 mask.control[band].mcs))
5886 if (mask.control[band].legacy == 0) {
5887 /* don't allow empty legacy rates if HT
5888 * is not even supported. */
5889 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5892 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5893 if (mask.control[band].mcs[i])
5896 /* legacy and mcs rates may not be both empty */
5897 if (i == IEEE80211_HT_MCS_MASK_LEN)
5902 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5905 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5908 struct net_device *dev = info->user_ptr[1];
5909 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5911 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5914 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5915 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5917 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5918 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5919 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5920 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5921 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5922 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5923 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5926 /* not much point in registering if we can't reply */
5927 if (!rdev->ops->mgmt_tx)
5930 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5932 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5933 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5936 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5939 struct net_device *dev = info->user_ptr[1];
5940 struct ieee80211_channel *chan;
5941 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5942 bool channel_type_valid = false;
5947 struct sk_buff *msg = NULL;
5948 unsigned int wait = 0;
5949 bool offchan, no_cck, dont_wait_for_ack;
5951 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5953 if (!info->attrs[NL80211_ATTR_FRAME] ||
5954 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5957 if (!rdev->ops->mgmt_tx)
5960 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5961 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5962 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5963 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5964 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5965 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5966 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5969 if (info->attrs[NL80211_ATTR_DURATION]) {
5970 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5972 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5975 * We should wait on the channel for at least a minimum amount
5976 * of time (10ms) but no longer than the driver supports.
5978 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5979 wait > rdev->wiphy.max_remain_on_channel_duration)
5984 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5985 if (!nl80211_valid_channel_type(info, &channel_type))
5987 channel_type_valid = true;
5990 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5992 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5995 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5997 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5998 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6002 if (!dont_wait_for_ack) {
6003 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6007 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6016 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6017 channel_type_valid, wait,
6018 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6019 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6020 no_cck, dont_wait_for_ack, &cookie);
6025 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6026 goto nla_put_failure;
6028 genlmsg_end(msg, hdr);
6029 return genlmsg_reply(msg, info);
6041 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6044 struct net_device *dev = info->user_ptr[1];
6047 if (!info->attrs[NL80211_ATTR_COOKIE])
6050 if (!rdev->ops->mgmt_tx_cancel_wait)
6053 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6054 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6055 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6056 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6057 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6058 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6061 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6063 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6066 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6069 struct wireless_dev *wdev;
6070 struct net_device *dev = info->user_ptr[1];
6075 if (!info->attrs[NL80211_ATTR_PS_STATE])
6078 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6080 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6083 wdev = dev->ieee80211_ptr;
6085 if (!rdev->ops->set_power_mgmt)
6088 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6090 if (state == wdev->ps)
6093 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6100 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6103 enum nl80211_ps_state ps_state;
6104 struct wireless_dev *wdev;
6105 struct net_device *dev = info->user_ptr[1];
6106 struct sk_buff *msg;
6110 wdev = dev->ieee80211_ptr;
6112 if (!rdev->ops->set_power_mgmt)
6115 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6119 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6120 NL80211_CMD_GET_POWER_SAVE);
6127 ps_state = NL80211_PS_ENABLED;
6129 ps_state = NL80211_PS_DISABLED;
6131 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6132 goto nla_put_failure;
6134 genlmsg_end(msg, hdr);
6135 return genlmsg_reply(msg, info);
6144 static struct nla_policy
6145 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6146 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6147 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6148 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6151 static int nl80211_set_cqm_rssi(struct genl_info *info,
6152 s32 threshold, u32 hysteresis)
6154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6155 struct wireless_dev *wdev;
6156 struct net_device *dev = info->user_ptr[1];
6161 wdev = dev->ieee80211_ptr;
6163 if (!rdev->ops->set_cqm_rssi_config)
6166 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6167 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6170 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6171 threshold, hysteresis);
6174 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6176 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6180 cqm = info->attrs[NL80211_ATTR_CQM];
6186 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6187 nl80211_attr_cqm_policy);
6191 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6192 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6195 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6196 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6197 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6205 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6208 struct net_device *dev = info->user_ptr[1];
6209 struct mesh_config cfg;
6210 struct mesh_setup setup;
6213 /* start with default */
6214 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6215 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6217 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6218 /* and parse parameters if given */
6219 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6224 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6225 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6228 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6229 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6231 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6232 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6233 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6236 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6237 /* parse additional setup parameters if given */
6238 err = nl80211_parse_mesh_setup(info, &setup);
6243 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6244 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6246 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6247 !nl80211_valid_channel_type(info, &channel_type))
6250 setup.channel = rdev_freq_to_chan(rdev,
6251 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6255 setup.channel_type = channel_type;
6257 /* cfg80211_join_mesh() will sort it out */
6258 setup.channel = NULL;
6261 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6264 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6266 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6267 struct net_device *dev = info->user_ptr[1];
6269 return cfg80211_leave_mesh(rdev, dev);
6272 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6275 struct sk_buff *msg;
6278 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6281 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6285 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6286 NL80211_CMD_GET_WOWLAN);
6288 goto nla_put_failure;
6291 struct nlattr *nl_wowlan;
6293 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6295 goto nla_put_failure;
6297 if ((rdev->wowlan->any &&
6298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6299 (rdev->wowlan->disconnect &&
6300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6301 (rdev->wowlan->magic_pkt &&
6302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6303 (rdev->wowlan->gtk_rekey_failure &&
6304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6305 (rdev->wowlan->eap_identity_req &&
6306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6307 (rdev->wowlan->four_way_handshake &&
6308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6309 (rdev->wowlan->rfkill_release &&
6310 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6311 goto nla_put_failure;
6312 if (rdev->wowlan->n_patterns) {
6313 struct nlattr *nl_pats, *nl_pat;
6316 nl_pats = nla_nest_start(msg,
6317 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6319 goto nla_put_failure;
6321 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6322 nl_pat = nla_nest_start(msg, i + 1);
6324 goto nla_put_failure;
6325 pat_len = rdev->wowlan->patterns[i].pattern_len;
6326 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6327 DIV_ROUND_UP(pat_len, 8),
6328 rdev->wowlan->patterns[i].mask) ||
6329 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6331 rdev->wowlan->patterns[i].pattern))
6332 goto nla_put_failure;
6333 nla_nest_end(msg, nl_pat);
6335 nla_nest_end(msg, nl_pats);
6338 nla_nest_end(msg, nl_wowlan);
6341 genlmsg_end(msg, hdr);
6342 return genlmsg_reply(msg, info);
6349 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6352 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6353 struct cfg80211_wowlan no_triggers = {};
6354 struct cfg80211_wowlan new_triggers = {};
6355 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6357 bool prev_enabled = rdev->wowlan;
6359 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6362 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6365 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6366 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6367 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6368 nl80211_wowlan_policy);
6372 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6373 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6375 new_triggers.any = true;
6378 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6379 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6381 new_triggers.disconnect = true;
6384 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6385 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6387 new_triggers.magic_pkt = true;
6390 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6393 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6394 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6396 new_triggers.gtk_rekey_failure = true;
6399 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6400 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6402 new_triggers.eap_identity_req = true;
6405 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6406 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6408 new_triggers.four_way_handshake = true;
6411 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6412 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6414 new_triggers.rfkill_release = true;
6417 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6420 int rem, pat_len, mask_len;
6421 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6423 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6426 if (n_patterns > wowlan->n_patterns)
6429 new_triggers.patterns = kcalloc(n_patterns,
6430 sizeof(new_triggers.patterns[0]),
6432 if (!new_triggers.patterns)
6435 new_triggers.n_patterns = n_patterns;
6438 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6440 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6441 nla_data(pat), nla_len(pat), NULL);
6443 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6444 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6446 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6447 mask_len = DIV_ROUND_UP(pat_len, 8);
6448 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6451 if (pat_len > wowlan->pattern_max_len ||
6452 pat_len < wowlan->pattern_min_len)
6455 new_triggers.patterns[i].mask =
6456 kmalloc(mask_len + pat_len, GFP_KERNEL);
6457 if (!new_triggers.patterns[i].mask) {
6461 new_triggers.patterns[i].pattern =
6462 new_triggers.patterns[i].mask + mask_len;
6463 memcpy(new_triggers.patterns[i].mask,
6464 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6466 new_triggers.patterns[i].pattern_len = pat_len;
6467 memcpy(new_triggers.patterns[i].pattern,
6468 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6474 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6475 struct cfg80211_wowlan *ntrig;
6476 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6482 cfg80211_rdev_free_wowlan(rdev);
6483 rdev->wowlan = ntrig;
6486 cfg80211_rdev_free_wowlan(rdev);
6487 rdev->wowlan = NULL;
6490 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6491 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6495 for (i = 0; i < new_triggers.n_patterns; i++)
6496 kfree(new_triggers.patterns[i].mask);
6497 kfree(new_triggers.patterns);
6501 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6504 struct net_device *dev = info->user_ptr[1];
6505 struct wireless_dev *wdev = dev->ieee80211_ptr;
6506 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6507 struct cfg80211_gtk_rekey_data rekey_data;
6510 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6513 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6514 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6515 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6516 nl80211_rekey_policy);
6520 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6522 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6524 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6527 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6529 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6531 memcpy(rekey_data.replay_ctr,
6532 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6533 NL80211_REPLAY_CTR_LEN);
6536 if (!wdev->current_bss) {
6541 if (!rdev->ops->set_rekey_data) {
6546 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6552 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6553 struct genl_info *info)
6555 struct net_device *dev = info->user_ptr[1];
6556 struct wireless_dev *wdev = dev->ieee80211_ptr;
6558 if (wdev->iftype != NL80211_IFTYPE_AP &&
6559 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6562 if (wdev->ap_unexpected_nlpid)
6565 wdev->ap_unexpected_nlpid = info->snd_pid;
6569 static int nl80211_probe_client(struct sk_buff *skb,
6570 struct genl_info *info)
6572 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6573 struct net_device *dev = info->user_ptr[1];
6574 struct wireless_dev *wdev = dev->ieee80211_ptr;
6575 struct sk_buff *msg;
6581 if (wdev->iftype != NL80211_IFTYPE_AP &&
6582 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6585 if (!info->attrs[NL80211_ATTR_MAC])
6588 if (!rdev->ops->probe_client)
6591 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6595 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6596 NL80211_CMD_PROBE_CLIENT);
6603 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6605 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6609 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6610 goto nla_put_failure;
6612 genlmsg_end(msg, hdr);
6614 return genlmsg_reply(msg, info);
6623 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6627 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6630 if (rdev->ap_beacons_nlpid)
6633 rdev->ap_beacons_nlpid = info->snd_pid;
6638 #define NL80211_FLAG_NEED_WIPHY 0x01
6639 #define NL80211_FLAG_NEED_NETDEV 0x02
6640 #define NL80211_FLAG_NEED_RTNL 0x04
6641 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6642 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6643 NL80211_FLAG_CHECK_NETDEV_UP)
6645 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6646 struct genl_info *info)
6648 struct cfg80211_registered_device *rdev;
6649 struct net_device *dev;
6651 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6656 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6657 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6661 return PTR_ERR(rdev);
6663 info->user_ptr[0] = rdev;
6664 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6665 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6672 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6673 !netif_running(dev)) {
6674 cfg80211_unlock_rdev(rdev);
6680 info->user_ptr[0] = rdev;
6681 info->user_ptr[1] = dev;
6687 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6688 struct genl_info *info)
6690 if (info->user_ptr[0])
6691 cfg80211_unlock_rdev(info->user_ptr[0]);
6692 if (info->user_ptr[1])
6693 dev_put(info->user_ptr[1]);
6694 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6698 static struct genl_ops nl80211_ops[] = {
6700 .cmd = NL80211_CMD_GET_WIPHY,
6701 .doit = nl80211_get_wiphy,
6702 .dumpit = nl80211_dump_wiphy,
6703 .policy = nl80211_policy,
6704 /* can be retrieved by unprivileged users */
6705 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6708 .cmd = NL80211_CMD_SET_WIPHY,
6709 .doit = nl80211_set_wiphy,
6710 .policy = nl80211_policy,
6711 .flags = GENL_ADMIN_PERM,
6712 .internal_flags = NL80211_FLAG_NEED_RTNL,
6715 .cmd = NL80211_CMD_GET_INTERFACE,
6716 .doit = nl80211_get_interface,
6717 .dumpit = nl80211_dump_interface,
6718 .policy = nl80211_policy,
6719 /* can be retrieved by unprivileged users */
6720 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6723 .cmd = NL80211_CMD_SET_INTERFACE,
6724 .doit = nl80211_set_interface,
6725 .policy = nl80211_policy,
6726 .flags = GENL_ADMIN_PERM,
6727 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6728 NL80211_FLAG_NEED_RTNL,
6731 .cmd = NL80211_CMD_NEW_INTERFACE,
6732 .doit = nl80211_new_interface,
6733 .policy = nl80211_policy,
6734 .flags = GENL_ADMIN_PERM,
6735 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6736 NL80211_FLAG_NEED_RTNL,
6739 .cmd = NL80211_CMD_DEL_INTERFACE,
6740 .doit = nl80211_del_interface,
6741 .policy = nl80211_policy,
6742 .flags = GENL_ADMIN_PERM,
6743 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6744 NL80211_FLAG_NEED_RTNL,
6747 .cmd = NL80211_CMD_GET_KEY,
6748 .doit = nl80211_get_key,
6749 .policy = nl80211_policy,
6750 .flags = GENL_ADMIN_PERM,
6751 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6752 NL80211_FLAG_NEED_RTNL,
6755 .cmd = NL80211_CMD_SET_KEY,
6756 .doit = nl80211_set_key,
6757 .policy = nl80211_policy,
6758 .flags = GENL_ADMIN_PERM,
6759 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6760 NL80211_FLAG_NEED_RTNL,
6763 .cmd = NL80211_CMD_NEW_KEY,
6764 .doit = nl80211_new_key,
6765 .policy = nl80211_policy,
6766 .flags = GENL_ADMIN_PERM,
6767 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6768 NL80211_FLAG_NEED_RTNL,
6771 .cmd = NL80211_CMD_DEL_KEY,
6772 .doit = nl80211_del_key,
6773 .policy = nl80211_policy,
6774 .flags = GENL_ADMIN_PERM,
6775 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6776 NL80211_FLAG_NEED_RTNL,
6779 .cmd = NL80211_CMD_SET_BEACON,
6780 .policy = nl80211_policy,
6781 .flags = GENL_ADMIN_PERM,
6782 .doit = nl80211_set_beacon,
6783 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6784 NL80211_FLAG_NEED_RTNL,
6787 .cmd = NL80211_CMD_START_AP,
6788 .policy = nl80211_policy,
6789 .flags = GENL_ADMIN_PERM,
6790 .doit = nl80211_start_ap,
6791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6792 NL80211_FLAG_NEED_RTNL,
6795 .cmd = NL80211_CMD_STOP_AP,
6796 .policy = nl80211_policy,
6797 .flags = GENL_ADMIN_PERM,
6798 .doit = nl80211_stop_ap,
6799 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6800 NL80211_FLAG_NEED_RTNL,
6803 .cmd = NL80211_CMD_GET_STATION,
6804 .doit = nl80211_get_station,
6805 .dumpit = nl80211_dump_station,
6806 .policy = nl80211_policy,
6807 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6808 NL80211_FLAG_NEED_RTNL,
6811 .cmd = NL80211_CMD_SET_STATION,
6812 .doit = nl80211_set_station,
6813 .policy = nl80211_policy,
6814 .flags = GENL_ADMIN_PERM,
6815 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6816 NL80211_FLAG_NEED_RTNL,
6819 .cmd = NL80211_CMD_NEW_STATION,
6820 .doit = nl80211_new_station,
6821 .policy = nl80211_policy,
6822 .flags = GENL_ADMIN_PERM,
6823 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6824 NL80211_FLAG_NEED_RTNL,
6827 .cmd = NL80211_CMD_DEL_STATION,
6828 .doit = nl80211_del_station,
6829 .policy = nl80211_policy,
6830 .flags = GENL_ADMIN_PERM,
6831 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6832 NL80211_FLAG_NEED_RTNL,
6835 .cmd = NL80211_CMD_GET_MPATH,
6836 .doit = nl80211_get_mpath,
6837 .dumpit = nl80211_dump_mpath,
6838 .policy = nl80211_policy,
6839 .flags = GENL_ADMIN_PERM,
6840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6841 NL80211_FLAG_NEED_RTNL,
6844 .cmd = NL80211_CMD_SET_MPATH,
6845 .doit = nl80211_set_mpath,
6846 .policy = nl80211_policy,
6847 .flags = GENL_ADMIN_PERM,
6848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6849 NL80211_FLAG_NEED_RTNL,
6852 .cmd = NL80211_CMD_NEW_MPATH,
6853 .doit = nl80211_new_mpath,
6854 .policy = nl80211_policy,
6855 .flags = GENL_ADMIN_PERM,
6856 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6857 NL80211_FLAG_NEED_RTNL,
6860 .cmd = NL80211_CMD_DEL_MPATH,
6861 .doit = nl80211_del_mpath,
6862 .policy = nl80211_policy,
6863 .flags = GENL_ADMIN_PERM,
6864 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6865 NL80211_FLAG_NEED_RTNL,
6868 .cmd = NL80211_CMD_SET_BSS,
6869 .doit = nl80211_set_bss,
6870 .policy = nl80211_policy,
6871 .flags = GENL_ADMIN_PERM,
6872 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6873 NL80211_FLAG_NEED_RTNL,
6876 .cmd = NL80211_CMD_GET_REG,
6877 .doit = nl80211_get_reg,
6878 .policy = nl80211_policy,
6879 /* can be retrieved by unprivileged users */
6882 .cmd = NL80211_CMD_SET_REG,
6883 .doit = nl80211_set_reg,
6884 .policy = nl80211_policy,
6885 .flags = GENL_ADMIN_PERM,
6888 .cmd = NL80211_CMD_REQ_SET_REG,
6889 .doit = nl80211_req_set_reg,
6890 .policy = nl80211_policy,
6891 .flags = GENL_ADMIN_PERM,
6894 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6895 .doit = nl80211_get_mesh_config,
6896 .policy = nl80211_policy,
6897 /* can be retrieved by unprivileged users */
6898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6899 NL80211_FLAG_NEED_RTNL,
6902 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6903 .doit = nl80211_update_mesh_config,
6904 .policy = nl80211_policy,
6905 .flags = GENL_ADMIN_PERM,
6906 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6907 NL80211_FLAG_NEED_RTNL,
6910 .cmd = NL80211_CMD_TRIGGER_SCAN,
6911 .doit = nl80211_trigger_scan,
6912 .policy = nl80211_policy,
6913 .flags = GENL_ADMIN_PERM,
6914 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6915 NL80211_FLAG_NEED_RTNL,
6918 .cmd = NL80211_CMD_GET_SCAN,
6919 .policy = nl80211_policy,
6920 .dumpit = nl80211_dump_scan,
6923 .cmd = NL80211_CMD_START_SCHED_SCAN,
6924 .doit = nl80211_start_sched_scan,
6925 .policy = nl80211_policy,
6926 .flags = GENL_ADMIN_PERM,
6927 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6928 NL80211_FLAG_NEED_RTNL,
6931 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6932 .doit = nl80211_stop_sched_scan,
6933 .policy = nl80211_policy,
6934 .flags = GENL_ADMIN_PERM,
6935 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6936 NL80211_FLAG_NEED_RTNL,
6939 .cmd = NL80211_CMD_AUTHENTICATE,
6940 .doit = nl80211_authenticate,
6941 .policy = nl80211_policy,
6942 .flags = GENL_ADMIN_PERM,
6943 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6944 NL80211_FLAG_NEED_RTNL,
6947 .cmd = NL80211_CMD_ASSOCIATE,
6948 .doit = nl80211_associate,
6949 .policy = nl80211_policy,
6950 .flags = GENL_ADMIN_PERM,
6951 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6952 NL80211_FLAG_NEED_RTNL,
6955 .cmd = NL80211_CMD_DEAUTHENTICATE,
6956 .doit = nl80211_deauthenticate,
6957 .policy = nl80211_policy,
6958 .flags = GENL_ADMIN_PERM,
6959 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6960 NL80211_FLAG_NEED_RTNL,
6963 .cmd = NL80211_CMD_DISASSOCIATE,
6964 .doit = nl80211_disassociate,
6965 .policy = nl80211_policy,
6966 .flags = GENL_ADMIN_PERM,
6967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6968 NL80211_FLAG_NEED_RTNL,
6971 .cmd = NL80211_CMD_JOIN_IBSS,
6972 .doit = nl80211_join_ibss,
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_LEAVE_IBSS,
6980 .doit = nl80211_leave_ibss,
6981 .policy = nl80211_policy,
6982 .flags = GENL_ADMIN_PERM,
6983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6984 NL80211_FLAG_NEED_RTNL,
6986 #ifdef CONFIG_NL80211_TESTMODE
6988 .cmd = NL80211_CMD_TESTMODE,
6989 .doit = nl80211_testmode_do,
6990 .dumpit = nl80211_testmode_dump,
6991 .policy = nl80211_policy,
6992 .flags = GENL_ADMIN_PERM,
6993 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6994 NL80211_FLAG_NEED_RTNL,
6998 .cmd = NL80211_CMD_CONNECT,
6999 .doit = nl80211_connect,
7000 .policy = nl80211_policy,
7001 .flags = GENL_ADMIN_PERM,
7002 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7003 NL80211_FLAG_NEED_RTNL,
7006 .cmd = NL80211_CMD_DISCONNECT,
7007 .doit = nl80211_disconnect,
7008 .policy = nl80211_policy,
7009 .flags = GENL_ADMIN_PERM,
7010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7011 NL80211_FLAG_NEED_RTNL,
7014 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7015 .doit = nl80211_wiphy_netns,
7016 .policy = nl80211_policy,
7017 .flags = GENL_ADMIN_PERM,
7018 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7019 NL80211_FLAG_NEED_RTNL,
7022 .cmd = NL80211_CMD_GET_SURVEY,
7023 .policy = nl80211_policy,
7024 .dumpit = nl80211_dump_survey,
7027 .cmd = NL80211_CMD_SET_PMKSA,
7028 .doit = nl80211_setdel_pmksa,
7029 .policy = nl80211_policy,
7030 .flags = GENL_ADMIN_PERM,
7031 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7032 NL80211_FLAG_NEED_RTNL,
7035 .cmd = NL80211_CMD_DEL_PMKSA,
7036 .doit = nl80211_setdel_pmksa,
7037 .policy = nl80211_policy,
7038 .flags = GENL_ADMIN_PERM,
7039 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7040 NL80211_FLAG_NEED_RTNL,
7043 .cmd = NL80211_CMD_FLUSH_PMKSA,
7044 .doit = nl80211_flush_pmksa,
7045 .policy = nl80211_policy,
7046 .flags = GENL_ADMIN_PERM,
7047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7048 NL80211_FLAG_NEED_RTNL,
7051 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7052 .doit = nl80211_remain_on_channel,
7053 .policy = nl80211_policy,
7054 .flags = GENL_ADMIN_PERM,
7055 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7056 NL80211_FLAG_NEED_RTNL,
7059 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7060 .doit = nl80211_cancel_remain_on_channel,
7061 .policy = nl80211_policy,
7062 .flags = GENL_ADMIN_PERM,
7063 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7064 NL80211_FLAG_NEED_RTNL,
7067 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7068 .doit = nl80211_set_tx_bitrate_mask,
7069 .policy = nl80211_policy,
7070 .flags = GENL_ADMIN_PERM,
7071 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7072 NL80211_FLAG_NEED_RTNL,
7075 .cmd = NL80211_CMD_REGISTER_FRAME,
7076 .doit = nl80211_register_mgmt,
7077 .policy = nl80211_policy,
7078 .flags = GENL_ADMIN_PERM,
7079 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7080 NL80211_FLAG_NEED_RTNL,
7083 .cmd = NL80211_CMD_FRAME,
7084 .doit = nl80211_tx_mgmt,
7085 .policy = nl80211_policy,
7086 .flags = GENL_ADMIN_PERM,
7087 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7088 NL80211_FLAG_NEED_RTNL,
7091 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7092 .doit = nl80211_tx_mgmt_cancel_wait,
7093 .policy = nl80211_policy,
7094 .flags = GENL_ADMIN_PERM,
7095 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7096 NL80211_FLAG_NEED_RTNL,
7099 .cmd = NL80211_CMD_SET_POWER_SAVE,
7100 .doit = nl80211_set_power_save,
7101 .policy = nl80211_policy,
7102 .flags = GENL_ADMIN_PERM,
7103 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7104 NL80211_FLAG_NEED_RTNL,
7107 .cmd = NL80211_CMD_GET_POWER_SAVE,
7108 .doit = nl80211_get_power_save,
7109 .policy = nl80211_policy,
7110 /* can be retrieved by unprivileged users */
7111 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7112 NL80211_FLAG_NEED_RTNL,
7115 .cmd = NL80211_CMD_SET_CQM,
7116 .doit = nl80211_set_cqm,
7117 .policy = nl80211_policy,
7118 .flags = GENL_ADMIN_PERM,
7119 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7120 NL80211_FLAG_NEED_RTNL,
7123 .cmd = NL80211_CMD_SET_CHANNEL,
7124 .doit = nl80211_set_channel,
7125 .policy = nl80211_policy,
7126 .flags = GENL_ADMIN_PERM,
7127 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7128 NL80211_FLAG_NEED_RTNL,
7131 .cmd = NL80211_CMD_SET_WDS_PEER,
7132 .doit = nl80211_set_wds_peer,
7133 .policy = nl80211_policy,
7134 .flags = GENL_ADMIN_PERM,
7135 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7136 NL80211_FLAG_NEED_RTNL,
7139 .cmd = NL80211_CMD_JOIN_MESH,
7140 .doit = nl80211_join_mesh,
7141 .policy = nl80211_policy,
7142 .flags = GENL_ADMIN_PERM,
7143 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7144 NL80211_FLAG_NEED_RTNL,
7147 .cmd = NL80211_CMD_LEAVE_MESH,
7148 .doit = nl80211_leave_mesh,
7149 .policy = nl80211_policy,
7150 .flags = GENL_ADMIN_PERM,
7151 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7152 NL80211_FLAG_NEED_RTNL,
7155 .cmd = NL80211_CMD_GET_WOWLAN,
7156 .doit = nl80211_get_wowlan,
7157 .policy = nl80211_policy,
7158 /* can be retrieved by unprivileged users */
7159 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7160 NL80211_FLAG_NEED_RTNL,
7163 .cmd = NL80211_CMD_SET_WOWLAN,
7164 .doit = nl80211_set_wowlan,
7165 .policy = nl80211_policy,
7166 .flags = GENL_ADMIN_PERM,
7167 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7168 NL80211_FLAG_NEED_RTNL,
7171 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7172 .doit = nl80211_set_rekey_data,
7173 .policy = nl80211_policy,
7174 .flags = GENL_ADMIN_PERM,
7175 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7176 NL80211_FLAG_NEED_RTNL,
7179 .cmd = NL80211_CMD_TDLS_MGMT,
7180 .doit = nl80211_tdls_mgmt,
7181 .policy = nl80211_policy,
7182 .flags = GENL_ADMIN_PERM,
7183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7184 NL80211_FLAG_NEED_RTNL,
7187 .cmd = NL80211_CMD_TDLS_OPER,
7188 .doit = nl80211_tdls_oper,
7189 .policy = nl80211_policy,
7190 .flags = GENL_ADMIN_PERM,
7191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7192 NL80211_FLAG_NEED_RTNL,
7195 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7196 .doit = nl80211_register_unexpected_frame,
7197 .policy = nl80211_policy,
7198 .flags = GENL_ADMIN_PERM,
7199 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7200 NL80211_FLAG_NEED_RTNL,
7203 .cmd = NL80211_CMD_PROBE_CLIENT,
7204 .doit = nl80211_probe_client,
7205 .policy = nl80211_policy,
7206 .flags = GENL_ADMIN_PERM,
7207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7208 NL80211_FLAG_NEED_RTNL,
7211 .cmd = NL80211_CMD_REGISTER_BEACONS,
7212 .doit = nl80211_register_beacons,
7213 .policy = nl80211_policy,
7214 .flags = GENL_ADMIN_PERM,
7215 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7216 NL80211_FLAG_NEED_RTNL,
7219 .cmd = NL80211_CMD_SET_NOACK_MAP,
7220 .doit = nl80211_set_noack_map,
7221 .policy = nl80211_policy,
7222 .flags = GENL_ADMIN_PERM,
7223 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7224 NL80211_FLAG_NEED_RTNL,
7229 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7233 /* multicast groups */
7234 static struct genl_multicast_group nl80211_config_mcgrp = {
7237 static struct genl_multicast_group nl80211_scan_mcgrp = {
7240 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7241 .name = "regulatory",
7244 /* notification functions */
7246 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7248 struct sk_buff *msg;
7250 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7254 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7259 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7260 nl80211_config_mcgrp.id, GFP_KERNEL);
7263 static int nl80211_add_scan_req(struct sk_buff *msg,
7264 struct cfg80211_registered_device *rdev)
7266 struct cfg80211_scan_request *req = rdev->scan_req;
7267 struct nlattr *nest;
7270 ASSERT_RDEV_LOCK(rdev);
7275 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7277 goto nla_put_failure;
7278 for (i = 0; i < req->n_ssids; i++) {
7279 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7280 goto nla_put_failure;
7282 nla_nest_end(msg, nest);
7284 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7286 goto nla_put_failure;
7287 for (i = 0; i < req->n_channels; i++) {
7288 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7289 goto nla_put_failure;
7291 nla_nest_end(msg, nest);
7294 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7295 goto nla_put_failure;
7302 static int nl80211_send_scan_msg(struct sk_buff *msg,
7303 struct cfg80211_registered_device *rdev,
7304 struct net_device *netdev,
7305 u32 pid, u32 seq, int flags,
7310 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7314 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7315 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7316 goto nla_put_failure;
7318 /* ignore errors and send incomplete event anyway */
7319 nl80211_add_scan_req(msg, rdev);
7321 return genlmsg_end(msg, hdr);
7324 genlmsg_cancel(msg, hdr);
7329 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7330 struct cfg80211_registered_device *rdev,
7331 struct net_device *netdev,
7332 u32 pid, u32 seq, int flags, u32 cmd)
7336 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7340 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7341 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7342 goto nla_put_failure;
7344 return genlmsg_end(msg, hdr);
7347 genlmsg_cancel(msg, hdr);
7351 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7352 struct net_device *netdev)
7354 struct sk_buff *msg;
7356 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7360 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7361 NL80211_CMD_TRIGGER_SCAN) < 0) {
7366 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7367 nl80211_scan_mcgrp.id, GFP_KERNEL);
7370 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7371 struct net_device *netdev)
7373 struct sk_buff *msg;
7375 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7379 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7380 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7385 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7386 nl80211_scan_mcgrp.id, GFP_KERNEL);
7389 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7390 struct net_device *netdev)
7392 struct sk_buff *msg;
7394 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7398 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7399 NL80211_CMD_SCAN_ABORTED) < 0) {
7404 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7405 nl80211_scan_mcgrp.id, GFP_KERNEL);
7408 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7409 struct net_device *netdev)
7411 struct sk_buff *msg;
7413 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7417 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7418 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7423 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7424 nl80211_scan_mcgrp.id, GFP_KERNEL);
7427 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7428 struct net_device *netdev, u32 cmd)
7430 struct sk_buff *msg;
7432 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7436 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7441 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7442 nl80211_scan_mcgrp.id, GFP_KERNEL);
7446 * This can happen on global regulatory changes or device specific settings
7447 * based on custom world regulatory domains.
7449 void nl80211_send_reg_change_event(struct regulatory_request *request)
7451 struct sk_buff *msg;
7454 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7458 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7464 /* Userspace can always count this one always being set */
7465 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7466 goto nla_put_failure;
7468 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7469 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7470 NL80211_REGDOM_TYPE_WORLD))
7471 goto nla_put_failure;
7472 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7473 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7474 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7475 goto nla_put_failure;
7476 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7477 request->intersect) {
7478 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7479 NL80211_REGDOM_TYPE_INTERSECTION))
7480 goto nla_put_failure;
7482 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7483 NL80211_REGDOM_TYPE_COUNTRY) ||
7484 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7486 goto nla_put_failure;
7489 if (wiphy_idx_valid(request->wiphy_idx) &&
7490 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7491 goto nla_put_failure;
7493 genlmsg_end(msg, hdr);
7496 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7503 genlmsg_cancel(msg, hdr);
7507 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7508 struct net_device *netdev,
7509 const u8 *buf, size_t len,
7510 enum nl80211_commands cmd, gfp_t gfp)
7512 struct sk_buff *msg;
7515 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7519 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7525 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7526 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7527 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7528 goto nla_put_failure;
7530 genlmsg_end(msg, hdr);
7532 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7533 nl80211_mlme_mcgrp.id, gfp);
7537 genlmsg_cancel(msg, hdr);
7541 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7542 struct net_device *netdev, const u8 *buf,
7543 size_t len, gfp_t gfp)
7545 nl80211_send_mlme_event(rdev, netdev, buf, len,
7546 NL80211_CMD_AUTHENTICATE, gfp);
7549 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7550 struct net_device *netdev, const u8 *buf,
7551 size_t len, gfp_t gfp)
7553 nl80211_send_mlme_event(rdev, netdev, buf, len,
7554 NL80211_CMD_ASSOCIATE, gfp);
7557 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7558 struct net_device *netdev, const u8 *buf,
7559 size_t len, gfp_t gfp)
7561 nl80211_send_mlme_event(rdev, netdev, buf, len,
7562 NL80211_CMD_DEAUTHENTICATE, gfp);
7565 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7566 struct net_device *netdev, const u8 *buf,
7567 size_t len, gfp_t gfp)
7569 nl80211_send_mlme_event(rdev, netdev, buf, len,
7570 NL80211_CMD_DISASSOCIATE, gfp);
7573 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7574 struct net_device *netdev, const u8 *buf,
7575 size_t len, gfp_t gfp)
7577 nl80211_send_mlme_event(rdev, netdev, buf, len,
7578 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7581 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7582 struct net_device *netdev, const u8 *buf,
7583 size_t len, gfp_t gfp)
7585 nl80211_send_mlme_event(rdev, netdev, buf, len,
7586 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7589 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7590 struct net_device *netdev, int cmd,
7591 const u8 *addr, gfp_t gfp)
7593 struct sk_buff *msg;
7596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7600 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7606 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7607 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7608 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7609 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7610 goto nla_put_failure;
7612 genlmsg_end(msg, hdr);
7614 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7615 nl80211_mlme_mcgrp.id, gfp);
7619 genlmsg_cancel(msg, hdr);
7623 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7624 struct net_device *netdev, const u8 *addr,
7627 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7631 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7632 struct net_device *netdev, const u8 *addr,
7635 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7639 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7640 struct net_device *netdev, const u8 *bssid,
7641 const u8 *req_ie, size_t req_ie_len,
7642 const u8 *resp_ie, size_t resp_ie_len,
7643 u16 status, gfp_t gfp)
7645 struct sk_buff *msg;
7648 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7652 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7658 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7659 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7660 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7661 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7663 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7665 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7666 goto nla_put_failure;
7668 genlmsg_end(msg, hdr);
7670 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7671 nl80211_mlme_mcgrp.id, gfp);
7675 genlmsg_cancel(msg, hdr);
7680 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7681 struct net_device *netdev, const u8 *bssid,
7682 const u8 *req_ie, size_t req_ie_len,
7683 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7685 struct sk_buff *msg;
7688 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7692 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7698 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7699 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7700 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7702 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7704 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7705 goto nla_put_failure;
7707 genlmsg_end(msg, hdr);
7709 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7710 nl80211_mlme_mcgrp.id, gfp);
7714 genlmsg_cancel(msg, hdr);
7719 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7720 struct net_device *netdev, u16 reason,
7721 const u8 *ie, size_t ie_len, bool from_ap)
7723 struct sk_buff *msg;
7726 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7730 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7736 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7737 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7738 (from_ap && reason &&
7739 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7741 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7742 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7743 goto nla_put_failure;
7745 genlmsg_end(msg, hdr);
7747 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7748 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7752 genlmsg_cancel(msg, hdr);
7757 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7758 struct net_device *netdev, const u8 *bssid,
7761 struct sk_buff *msg;
7764 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7768 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7774 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7775 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7776 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7777 goto nla_put_failure;
7779 genlmsg_end(msg, hdr);
7781 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7782 nl80211_mlme_mcgrp.id, gfp);
7786 genlmsg_cancel(msg, hdr);
7790 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7791 struct net_device *netdev,
7792 const u8 *macaddr, const u8* ie, u8 ie_len,
7795 struct sk_buff *msg;
7798 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7802 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7808 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7809 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7810 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7812 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7813 goto nla_put_failure;
7815 genlmsg_end(msg, hdr);
7817 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7818 nl80211_mlme_mcgrp.id, gfp);
7822 genlmsg_cancel(msg, hdr);
7826 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7827 struct net_device *netdev, const u8 *addr,
7828 enum nl80211_key_type key_type, int key_id,
7829 const u8 *tsc, gfp_t gfp)
7831 struct sk_buff *msg;
7834 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7838 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7844 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7845 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7846 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7847 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7849 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7850 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7851 goto nla_put_failure;
7853 genlmsg_end(msg, hdr);
7855 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7856 nl80211_mlme_mcgrp.id, gfp);
7860 genlmsg_cancel(msg, hdr);
7864 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7865 struct ieee80211_channel *channel_before,
7866 struct ieee80211_channel *channel_after)
7868 struct sk_buff *msg;
7870 struct nlattr *nl_freq;
7872 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7876 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7883 * Since we are applying the beacon hint to a wiphy we know its
7884 * wiphy_idx is valid
7886 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7887 goto nla_put_failure;
7890 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7892 goto nla_put_failure;
7893 if (nl80211_msg_put_channel(msg, channel_before))
7894 goto nla_put_failure;
7895 nla_nest_end(msg, nl_freq);
7898 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7900 goto nla_put_failure;
7901 if (nl80211_msg_put_channel(msg, channel_after))
7902 goto nla_put_failure;
7903 nla_nest_end(msg, nl_freq);
7905 genlmsg_end(msg, hdr);
7908 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7915 genlmsg_cancel(msg, hdr);
7919 static void nl80211_send_remain_on_chan_event(
7920 int cmd, struct cfg80211_registered_device *rdev,
7921 struct net_device *netdev, u64 cookie,
7922 struct ieee80211_channel *chan,
7923 enum nl80211_channel_type channel_type,
7924 unsigned int duration, gfp_t gfp)
7926 struct sk_buff *msg;
7929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7933 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7939 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7940 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7941 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7942 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7943 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7944 goto nla_put_failure;
7946 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7947 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7948 goto nla_put_failure;
7950 genlmsg_end(msg, hdr);
7952 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7953 nl80211_mlme_mcgrp.id, gfp);
7957 genlmsg_cancel(msg, hdr);
7961 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7962 struct net_device *netdev, u64 cookie,
7963 struct ieee80211_channel *chan,
7964 enum nl80211_channel_type channel_type,
7965 unsigned int duration, gfp_t gfp)
7967 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7968 rdev, netdev, cookie, chan,
7969 channel_type, duration, gfp);
7972 void nl80211_send_remain_on_channel_cancel(
7973 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7974 u64 cookie, struct ieee80211_channel *chan,
7975 enum nl80211_channel_type channel_type, gfp_t gfp)
7977 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7978 rdev, netdev, cookie, chan,
7979 channel_type, 0, gfp);
7982 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7983 struct net_device *dev, const u8 *mac_addr,
7984 struct station_info *sinfo, gfp_t gfp)
7986 struct sk_buff *msg;
7988 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7992 if (nl80211_send_station(msg, 0, 0, 0,
7993 rdev, dev, mac_addr, sinfo) < 0) {
7998 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7999 nl80211_mlme_mcgrp.id, gfp);
8002 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8003 struct net_device *dev, const u8 *mac_addr,
8006 struct sk_buff *msg;
8009 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8013 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8019 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8020 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8021 goto nla_put_failure;
8023 genlmsg_end(msg, hdr);
8025 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8026 nl80211_mlme_mcgrp.id, gfp);
8030 genlmsg_cancel(msg, hdr);
8034 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8035 const u8 *addr, gfp_t gfp)
8037 struct wireless_dev *wdev = dev->ieee80211_ptr;
8038 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8039 struct sk_buff *msg;
8042 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8047 msg = nlmsg_new(100, gfp);
8051 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8057 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8058 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8059 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8060 goto nla_put_failure;
8062 err = genlmsg_end(msg, hdr);
8068 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8072 genlmsg_cancel(msg, hdr);
8077 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8079 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8083 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8084 const u8 *addr, gfp_t gfp)
8086 return __nl80211_unexpected_frame(dev,
8087 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8091 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8092 struct net_device *netdev, u32 nlpid,
8093 int freq, int sig_dbm,
8094 const u8 *buf, size_t len, gfp_t gfp)
8096 struct sk_buff *msg;
8099 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8103 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8109 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8110 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8111 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8113 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8114 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8115 goto nla_put_failure;
8117 genlmsg_end(msg, hdr);
8119 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8122 genlmsg_cancel(msg, hdr);
8127 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8128 struct net_device *netdev, u64 cookie,
8129 const u8 *buf, size_t len, bool ack,
8132 struct sk_buff *msg;
8135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8139 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8145 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8146 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8147 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8148 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8149 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8150 goto nla_put_failure;
8152 genlmsg_end(msg, hdr);
8154 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8158 genlmsg_cancel(msg, hdr);
8163 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8164 struct net_device *netdev,
8165 enum nl80211_cqm_rssi_threshold_event rssi_event,
8168 struct sk_buff *msg;
8169 struct nlattr *pinfoattr;
8172 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8176 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8182 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8183 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8184 goto nla_put_failure;
8186 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8188 goto nla_put_failure;
8190 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8192 goto nla_put_failure;
8194 nla_nest_end(msg, pinfoattr);
8196 genlmsg_end(msg, hdr);
8198 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8199 nl80211_mlme_mcgrp.id, gfp);
8203 genlmsg_cancel(msg, hdr);
8207 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8208 struct net_device *netdev, const u8 *bssid,
8209 const u8 *replay_ctr, gfp_t gfp)
8211 struct sk_buff *msg;
8212 struct nlattr *rekey_attr;
8215 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8219 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8225 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8226 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8227 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8228 goto nla_put_failure;
8230 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8232 goto nla_put_failure;
8234 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8235 NL80211_REPLAY_CTR_LEN, replay_ctr))
8236 goto nla_put_failure;
8238 nla_nest_end(msg, rekey_attr);
8240 genlmsg_end(msg, hdr);
8242 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8243 nl80211_mlme_mcgrp.id, gfp);
8247 genlmsg_cancel(msg, hdr);
8251 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8252 struct net_device *netdev, int index,
8253 const u8 *bssid, bool preauth, gfp_t gfp)
8255 struct sk_buff *msg;
8256 struct nlattr *attr;
8259 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8263 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8269 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8270 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8271 goto nla_put_failure;
8273 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8275 goto nla_put_failure;
8277 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8278 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8280 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8281 goto nla_put_failure;
8283 nla_nest_end(msg, attr);
8285 genlmsg_end(msg, hdr);
8287 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8288 nl80211_mlme_mcgrp.id, gfp);
8292 genlmsg_cancel(msg, hdr);
8296 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8297 struct net_device *netdev, int freq,
8298 enum nl80211_channel_type type, gfp_t gfp)
8300 struct sk_buff *msg;
8303 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8307 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8313 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8314 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8315 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8316 goto nla_put_failure;
8318 genlmsg_end(msg, hdr);
8320 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8321 nl80211_mlme_mcgrp.id, gfp);
8325 genlmsg_cancel(msg, hdr);
8330 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8331 struct net_device *netdev, const u8 *peer,
8332 u32 num_packets, gfp_t gfp)
8334 struct sk_buff *msg;
8335 struct nlattr *pinfoattr;
8338 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8342 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8349 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8350 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8351 goto nla_put_failure;
8353 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8355 goto nla_put_failure;
8357 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8358 goto nla_put_failure;
8360 nla_nest_end(msg, pinfoattr);
8362 genlmsg_end(msg, hdr);
8364 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8365 nl80211_mlme_mcgrp.id, gfp);
8369 genlmsg_cancel(msg, hdr);
8373 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8374 u64 cookie, bool acked, gfp_t gfp)
8376 struct wireless_dev *wdev = dev->ieee80211_ptr;
8377 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8378 struct sk_buff *msg;
8382 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8386 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8392 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8393 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8394 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8395 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8396 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8397 goto nla_put_failure;
8399 err = genlmsg_end(msg, hdr);
8405 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8406 nl80211_mlme_mcgrp.id, gfp);
8410 genlmsg_cancel(msg, hdr);
8413 EXPORT_SYMBOL(cfg80211_probe_status);
8415 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8416 const u8 *frame, size_t len,
8417 int freq, int sig_dbm, gfp_t gfp)
8419 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8420 struct sk_buff *msg;
8422 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8427 msg = nlmsg_new(len + 100, gfp);
8431 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8437 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8439 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8441 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8442 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8443 goto nla_put_failure;
8445 genlmsg_end(msg, hdr);
8447 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8451 genlmsg_cancel(msg, hdr);
8454 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8456 static int nl80211_netlink_notify(struct notifier_block * nb,
8457 unsigned long state,
8460 struct netlink_notify *notify = _notify;
8461 struct cfg80211_registered_device *rdev;
8462 struct wireless_dev *wdev;
8464 if (state != NETLINK_URELEASE)
8469 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8470 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8471 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8472 if (rdev->ap_beacons_nlpid == notify->pid)
8473 rdev->ap_beacons_nlpid = 0;
8481 static struct notifier_block nl80211_netlink_notifier = {
8482 .notifier_call = nl80211_netlink_notify,
8485 /* initialisation/exit functions */
8487 int nl80211_init(void)
8491 err = genl_register_family_with_ops(&nl80211_fam,
8492 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8496 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8500 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8504 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8508 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8512 #ifdef CONFIG_NL80211_TESTMODE
8513 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8518 err = netlink_register_notifier(&nl80211_netlink_notifier);
8524 genl_unregister_family(&nl80211_fam);
8528 void nl80211_exit(void)
8530 netlink_unregister_notifier(&nl80211_netlink_notifier);
8531 genl_unregister_family(&nl80211_fam);