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 /* policy for the attributes */
74 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
75 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
76 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
78 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
79 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
80 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
81 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
82 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
84 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
85 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
87 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
88 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
91 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
92 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
94 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
95 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
96 .len = WLAN_MAX_KEY_LEN },
97 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
98 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
99 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
100 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
101 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
103 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
104 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
105 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
106 .len = IEEE80211_MAX_DATA_LEN },
107 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
108 .len = IEEE80211_MAX_DATA_LEN },
109 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
110 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
111 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
112 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
113 .len = NL80211_MAX_SUPP_RATES },
114 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
115 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
116 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
117 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
118 .len = IEEE80211_MAX_MESH_ID_LEN },
119 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
121 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
122 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
124 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
125 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
127 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
128 .len = NL80211_MAX_SUPP_RATES },
129 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
131 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
132 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
134 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
136 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
137 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
138 .len = IEEE80211_MAX_DATA_LEN },
139 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
140 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
142 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
143 .len = IEEE80211_MAX_SSID_LEN },
144 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
145 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
146 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
147 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
148 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
149 [NL80211_ATTR_STA_FLAGS2] = {
150 .len = sizeof(struct nl80211_sta_flag_update),
152 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
153 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
154 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
155 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
156 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
157 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
158 [NL80211_ATTR_PID] = { .type = NLA_U32 },
159 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
160 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
161 .len = WLAN_PMKID_LEN },
162 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
163 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
164 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
165 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
166 .len = IEEE80211_MAX_DATA_LEN },
167 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
168 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
169 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
170 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
171 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
172 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
173 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
174 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
175 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
176 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
177 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
178 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
179 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
180 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
181 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
182 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
183 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
184 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
185 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
186 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
187 .len = IEEE80211_MAX_DATA_LEN },
188 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
190 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
191 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
192 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
193 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
194 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
197 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
198 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
199 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
200 .len = IEEE80211_MAX_DATA_LEN },
201 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
202 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
203 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
204 .len = NL80211_HT_CAPABILITY_LEN
206 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
207 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
208 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
211 /* policy for the key attributes */
212 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
213 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
214 [NL80211_KEY_IDX] = { .type = NLA_U8 },
215 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
216 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
217 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
218 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
219 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
220 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
223 /* policy for the key default flags */
224 static const struct nla_policy
225 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
226 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
227 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
230 /* policy for WoWLAN attributes */
231 static const struct nla_policy
232 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
233 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
234 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
235 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
236 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
237 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
238 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
239 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
240 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
243 /* policy for GTK rekey offload attributes */
244 static const struct nla_policy
245 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
246 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
247 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
248 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
251 static const struct nla_policy
252 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
253 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_SSID_LEN },
257 /* ifidx get helper */
258 static int nl80211_get_ifidx(struct netlink_callback *cb)
262 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
263 nl80211_fam.attrbuf, nl80211_fam.maxattr,
268 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
271 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
277 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
278 struct netlink_callback *cb,
279 struct cfg80211_registered_device **rdev,
280 struct net_device **dev)
282 int ifidx = cb->args[0];
286 ifidx = nl80211_get_ifidx(cb);
294 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
300 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
302 err = PTR_ERR(*rdev);
312 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
314 cfg80211_unlock_rdev(rdev);
319 static bool is_valid_ie_attr(const struct nlattr *attr)
327 pos = nla_data(attr);
348 /* message building helper */
349 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
352 /* since there is no private header just add the generic one */
353 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
356 static int nl80211_msg_put_channel(struct sk_buff *msg,
357 struct ieee80211_channel *chan)
359 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
361 goto nla_put_failure;
363 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
364 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
365 goto nla_put_failure;
366 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
367 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
368 goto nla_put_failure;
369 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
370 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
371 goto nla_put_failure;
372 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
373 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
374 goto nla_put_failure;
376 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
377 DBM_TO_MBM(chan->max_power)))
378 goto nla_put_failure;
386 /* netlink command implementations */
393 bool def_uni, def_multi;
396 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
398 struct nlattr *tb[NL80211_KEY_MAX + 1];
399 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
404 k->def = !!tb[NL80211_KEY_DEFAULT];
405 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
414 if (tb[NL80211_KEY_IDX])
415 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
417 if (tb[NL80211_KEY_DATA]) {
418 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
419 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
422 if (tb[NL80211_KEY_SEQ]) {
423 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
424 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
427 if (tb[NL80211_KEY_CIPHER])
428 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
430 if (tb[NL80211_KEY_TYPE]) {
431 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
432 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
436 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
437 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
438 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
439 tb[NL80211_KEY_DEFAULT_TYPES],
440 nl80211_key_default_policy);
444 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
445 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
451 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
453 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
454 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
455 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
458 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
459 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
460 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
463 if (info->attrs[NL80211_ATTR_KEY_IDX])
464 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
466 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
467 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
469 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
470 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
479 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
480 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
481 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
485 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
486 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
487 int err = nla_parse_nested(
488 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
489 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
490 nl80211_key_default_policy);
494 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
495 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
501 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
505 memset(k, 0, sizeof(*k));
509 if (info->attrs[NL80211_ATTR_KEY])
510 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
512 err = nl80211_parse_key_old(info, k);
517 if (k->def && k->defmgmt)
521 if (k->def_uni || !k->def_multi)
527 if (k->idx < 4 || k->idx > 5)
530 if (k->idx < 0 || k->idx > 3)
533 if (k->idx < 0 || k->idx > 5)
541 static struct cfg80211_cached_keys *
542 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
545 struct key_parse parse;
547 struct cfg80211_cached_keys *result;
548 int rem, err, def = 0;
550 result = kzalloc(sizeof(*result), GFP_KERNEL);
552 return ERR_PTR(-ENOMEM);
555 result->defmgmt = -1;
557 nla_for_each_nested(key, keys, rem) {
558 memset(&parse, 0, sizeof(parse));
561 err = nl80211_parse_key_new(key, &parse);
567 if (parse.idx < 0 || parse.idx > 4)
573 result->def = parse.idx;
574 if (!parse.def_uni || !parse.def_multi)
576 } else if (parse.defmgmt)
578 err = cfg80211_validate_key_settings(rdev, &parse.p,
579 parse.idx, false, NULL);
582 result->params[parse.idx].cipher = parse.p.cipher;
583 result->params[parse.idx].key_len = parse.p.key_len;
584 result->params[parse.idx].key = result->data[parse.idx];
585 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
594 static int nl80211_key_allowed(struct wireless_dev *wdev)
596 ASSERT_WDEV_LOCK(wdev);
598 switch (wdev->iftype) {
599 case NL80211_IFTYPE_AP:
600 case NL80211_IFTYPE_AP_VLAN:
601 case NL80211_IFTYPE_P2P_GO:
602 case NL80211_IFTYPE_MESH_POINT:
604 case NL80211_IFTYPE_ADHOC:
605 if (!wdev->current_bss)
608 case NL80211_IFTYPE_STATION:
609 case NL80211_IFTYPE_P2P_CLIENT:
610 if (wdev->sme_state != CFG80211_SME_CONNECTED)
620 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
622 struct nlattr *nl_modes = nla_nest_start(msg, attr);
626 goto nla_put_failure;
630 if ((ifmodes & 1) && nla_put_flag(msg, i))
631 goto nla_put_failure;
636 nla_nest_end(msg, nl_modes);
643 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
646 struct nlattr *nl_combis;
649 nl_combis = nla_nest_start(msg,
650 NL80211_ATTR_INTERFACE_COMBINATIONS);
652 goto nla_put_failure;
654 for (i = 0; i < wiphy->n_iface_combinations; i++) {
655 const struct ieee80211_iface_combination *c;
656 struct nlattr *nl_combi, *nl_limits;
658 c = &wiphy->iface_combinations[i];
660 nl_combi = nla_nest_start(msg, i + 1);
662 goto nla_put_failure;
664 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
666 goto nla_put_failure;
668 for (j = 0; j < c->n_limits; j++) {
669 struct nlattr *nl_limit;
671 nl_limit = nla_nest_start(msg, j + 1);
673 goto nla_put_failure;
674 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
676 goto nla_put_failure;
677 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
679 goto nla_put_failure;
680 nla_nest_end(msg, nl_limit);
683 nla_nest_end(msg, nl_limits);
685 if (c->beacon_int_infra_match &&
686 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
687 goto nla_put_failure;
688 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
689 c->num_different_channels) ||
690 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
692 goto nla_put_failure;
694 nla_nest_end(msg, nl_combi);
697 nla_nest_end(msg, nl_combis);
704 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
705 struct cfg80211_registered_device *dev)
708 struct nlattr *nl_bands, *nl_band;
709 struct nlattr *nl_freqs, *nl_freq;
710 struct nlattr *nl_rates, *nl_rate;
711 struct nlattr *nl_cmds;
712 enum ieee80211_band band;
713 struct ieee80211_channel *chan;
714 struct ieee80211_rate *rate;
716 const struct ieee80211_txrx_stypes *mgmt_stypes =
717 dev->wiphy.mgmt_stypes;
719 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
723 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
724 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
725 nla_put_u32(msg, NL80211_ATTR_GENERATION,
726 cfg80211_rdev_list_generation) ||
727 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
728 dev->wiphy.retry_short) ||
729 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
730 dev->wiphy.retry_long) ||
731 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
732 dev->wiphy.frag_threshold) ||
733 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
734 dev->wiphy.rts_threshold) ||
735 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
736 dev->wiphy.coverage_class) ||
737 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
738 dev->wiphy.max_scan_ssids) ||
739 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
740 dev->wiphy.max_sched_scan_ssids) ||
741 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
742 dev->wiphy.max_scan_ie_len) ||
743 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
744 dev->wiphy.max_sched_scan_ie_len) ||
745 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
746 dev->wiphy.max_match_sets))
747 goto nla_put_failure;
749 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
750 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
751 goto nla_put_failure;
752 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
753 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
754 goto nla_put_failure;
755 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
756 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
757 goto nla_put_failure;
758 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
759 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
760 goto nla_put_failure;
761 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
762 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
763 goto nla_put_failure;
764 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
765 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
766 goto nla_put_failure;
768 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
769 sizeof(u32) * dev->wiphy.n_cipher_suites,
770 dev->wiphy.cipher_suites))
771 goto nla_put_failure;
773 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
774 dev->wiphy.max_num_pmkids))
775 goto nla_put_failure;
777 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
778 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
779 goto nla_put_failure;
781 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
782 dev->wiphy.available_antennas_tx) ||
783 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
784 dev->wiphy.available_antennas_rx))
785 goto nla_put_failure;
787 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
788 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
789 dev->wiphy.probe_resp_offload))
790 goto nla_put_failure;
792 if ((dev->wiphy.available_antennas_tx ||
793 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
794 u32 tx_ant = 0, rx_ant = 0;
796 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
798 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
800 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
802 goto nla_put_failure;
806 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
807 dev->wiphy.interface_modes))
808 goto nla_put_failure;
810 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
812 goto nla_put_failure;
814 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
815 if (!dev->wiphy.bands[band])
818 nl_band = nla_nest_start(msg, band);
820 goto nla_put_failure;
823 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
824 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
825 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
826 &dev->wiphy.bands[band]->ht_cap.mcs) ||
827 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
828 dev->wiphy.bands[band]->ht_cap.cap) ||
829 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
830 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
831 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
832 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
833 goto nla_put_failure;
835 /* add frequencies */
836 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
838 goto nla_put_failure;
840 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
841 nl_freq = nla_nest_start(msg, i);
843 goto nla_put_failure;
845 chan = &dev->wiphy.bands[band]->channels[i];
847 if (nl80211_msg_put_channel(msg, chan))
848 goto nla_put_failure;
850 nla_nest_end(msg, nl_freq);
853 nla_nest_end(msg, nl_freqs);
856 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
858 goto nla_put_failure;
860 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
861 nl_rate = nla_nest_start(msg, i);
863 goto nla_put_failure;
865 rate = &dev->wiphy.bands[band]->bitrates[i];
866 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
868 goto nla_put_failure;
869 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
871 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
872 goto nla_put_failure;
874 nla_nest_end(msg, nl_rate);
877 nla_nest_end(msg, nl_rates);
879 nla_nest_end(msg, nl_band);
881 nla_nest_end(msg, nl_bands);
883 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
885 goto nla_put_failure;
890 if (dev->ops->op) { \
892 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
893 goto nla_put_failure; \
897 CMD(add_virtual_intf, NEW_INTERFACE);
898 CMD(change_virtual_intf, SET_INTERFACE);
899 CMD(add_key, NEW_KEY);
900 CMD(start_ap, START_AP);
901 CMD(add_station, NEW_STATION);
902 CMD(add_mpath, NEW_MPATH);
903 CMD(update_mesh_config, SET_MESH_CONFIG);
904 CMD(change_bss, SET_BSS);
905 CMD(auth, AUTHENTICATE);
906 CMD(assoc, ASSOCIATE);
907 CMD(deauth, DEAUTHENTICATE);
908 CMD(disassoc, DISASSOCIATE);
909 CMD(join_ibss, JOIN_IBSS);
910 CMD(join_mesh, JOIN_MESH);
911 CMD(set_pmksa, SET_PMKSA);
912 CMD(del_pmksa, DEL_PMKSA);
913 CMD(flush_pmksa, FLUSH_PMKSA);
914 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
915 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
916 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
918 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
919 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
921 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
922 goto nla_put_failure;
924 CMD(set_channel, SET_CHANNEL);
925 CMD(set_wds_peer, SET_WDS_PEER);
926 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
927 CMD(tdls_mgmt, TDLS_MGMT);
928 CMD(tdls_oper, TDLS_OPER);
930 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
931 CMD(sched_scan_start, START_SCHED_SCAN);
932 CMD(probe_client, PROBE_CLIENT);
933 CMD(set_noack_map, SET_NOACK_MAP);
934 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
936 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
937 goto nla_put_failure;
940 #ifdef CONFIG_NL80211_TESTMODE
941 CMD(testmode_cmd, TESTMODE);
946 if (dev->ops->connect || dev->ops->auth) {
948 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
949 goto nla_put_failure;
952 if (dev->ops->disconnect || dev->ops->deauth) {
954 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
955 goto nla_put_failure;
958 nla_nest_end(msg, nl_cmds);
960 if (dev->ops->remain_on_channel &&
961 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
962 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
963 dev->wiphy.max_remain_on_channel_duration))
964 goto nla_put_failure;
966 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
967 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
968 goto nla_put_failure;
972 struct nlattr *nl_ftypes, *nl_ifs;
973 enum nl80211_iftype ift;
975 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
977 goto nla_put_failure;
979 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
980 nl_ftypes = nla_nest_start(msg, ift);
982 goto nla_put_failure;
984 stypes = mgmt_stypes[ift].tx;
987 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
988 (i << 4) | IEEE80211_FTYPE_MGMT))
989 goto nla_put_failure;
993 nla_nest_end(msg, nl_ftypes);
996 nla_nest_end(msg, nl_ifs);
998 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1000 goto nla_put_failure;
1002 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1003 nl_ftypes = nla_nest_start(msg, ift);
1005 goto nla_put_failure;
1007 stypes = mgmt_stypes[ift].rx;
1010 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1011 (i << 4) | IEEE80211_FTYPE_MGMT))
1012 goto nla_put_failure;
1016 nla_nest_end(msg, nl_ftypes);
1018 nla_nest_end(msg, nl_ifs);
1021 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1022 struct nlattr *nl_wowlan;
1024 nl_wowlan = nla_nest_start(msg,
1025 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1027 goto nla_put_failure;
1029 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1030 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1031 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1032 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1033 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1034 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1035 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1036 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1037 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1038 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1039 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1040 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1041 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1042 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1043 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1044 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1045 goto nla_put_failure;
1046 if (dev->wiphy.wowlan.n_patterns) {
1047 struct nl80211_wowlan_pattern_support pat = {
1048 .max_patterns = dev->wiphy.wowlan.n_patterns,
1050 dev->wiphy.wowlan.pattern_min_len,
1052 dev->wiphy.wowlan.pattern_max_len,
1054 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1056 goto nla_put_failure;
1059 nla_nest_end(msg, nl_wowlan);
1062 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1063 dev->wiphy.software_iftypes))
1064 goto nla_put_failure;
1066 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1067 goto nla_put_failure;
1069 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1070 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1071 dev->wiphy.ap_sme_capa))
1072 goto nla_put_failure;
1074 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1075 dev->wiphy.features))
1076 goto nla_put_failure;
1078 if (dev->wiphy.ht_capa_mod_mask &&
1079 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1080 sizeof(*dev->wiphy.ht_capa_mod_mask),
1081 dev->wiphy.ht_capa_mod_mask))
1082 goto nla_put_failure;
1084 return genlmsg_end(msg, hdr);
1087 genlmsg_cancel(msg, hdr);
1091 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1094 int start = cb->args[0];
1095 struct cfg80211_registered_device *dev;
1097 mutex_lock(&cfg80211_mutex);
1098 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1099 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1103 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1104 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1110 mutex_unlock(&cfg80211_mutex);
1117 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1119 struct sk_buff *msg;
1120 struct cfg80211_registered_device *dev = info->user_ptr[0];
1122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1126 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1131 return genlmsg_reply(msg, info);
1134 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1135 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1136 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1137 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1138 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1139 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1142 static int parse_txq_params(struct nlattr *tb[],
1143 struct ieee80211_txq_params *txq_params)
1145 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1146 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1147 !tb[NL80211_TXQ_ATTR_AIFS])
1150 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1151 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1152 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1153 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1154 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1156 if (txq_params->ac >= NL80211_NUM_ACS)
1162 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1165 * You can only set the channel explicitly for AP, mesh
1166 * and WDS type interfaces; all others have their channel
1167 * managed via their respective "establish a connection"
1168 * command (connect, join, ...)
1170 * Monitors are special as they are normally slaved to
1171 * whatever else is going on, so they behave as though
1172 * you tried setting the wiphy channel itself.
1175 wdev->iftype == NL80211_IFTYPE_AP ||
1176 wdev->iftype == NL80211_IFTYPE_WDS ||
1177 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1178 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1179 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1182 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1183 struct wireless_dev *wdev,
1184 struct genl_info *info)
1186 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1190 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1193 if (!nl80211_can_set_dev_channel(wdev))
1196 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1197 channel_type = nla_get_u32(info->attrs[
1198 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1199 if (channel_type != NL80211_CHAN_NO_HT &&
1200 channel_type != NL80211_CHAN_HT20 &&
1201 channel_type != NL80211_CHAN_HT40PLUS &&
1202 channel_type != NL80211_CHAN_HT40MINUS)
1206 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1208 mutex_lock(&rdev->devlist_mtx);
1211 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1214 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1216 mutex_unlock(&rdev->devlist_mtx);
1221 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1224 struct net_device *netdev = info->user_ptr[1];
1226 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1229 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1232 struct net_device *dev = info->user_ptr[1];
1233 struct wireless_dev *wdev = dev->ieee80211_ptr;
1236 if (!info->attrs[NL80211_ATTR_MAC])
1239 if (netif_running(dev))
1242 if (!rdev->ops->set_wds_peer)
1245 if (wdev->iftype != NL80211_IFTYPE_WDS)
1248 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1249 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1253 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1255 struct cfg80211_registered_device *rdev;
1256 struct net_device *netdev = NULL;
1257 struct wireless_dev *wdev;
1258 int result = 0, rem_txq_params = 0;
1259 struct nlattr *nl_txq_params;
1261 u8 retry_short = 0, retry_long = 0;
1262 u32 frag_threshold = 0, rts_threshold = 0;
1263 u8 coverage_class = 0;
1266 * Try to find the wiphy and netdev. Normally this
1267 * function shouldn't need the netdev, but this is
1268 * done for backward compatibility -- previously
1269 * setting the channel was done per wiphy, but now
1270 * it is per netdev. Previous userland like hostapd
1271 * also passed a netdev to set_wiphy, so that it is
1272 * possible to let that go to the right netdev!
1274 mutex_lock(&cfg80211_mutex);
1276 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1277 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1279 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1280 if (netdev && netdev->ieee80211_ptr) {
1281 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1282 mutex_lock(&rdev->mtx);
1288 rdev = __cfg80211_rdev_from_info(info);
1290 mutex_unlock(&cfg80211_mutex);
1291 return PTR_ERR(rdev);
1297 mutex_lock(&rdev->mtx);
1298 } else if (netif_running(netdev) &&
1299 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1300 wdev = netdev->ieee80211_ptr;
1305 * end workaround code, by now the rdev is available
1306 * and locked, and wdev may or may not be NULL.
1309 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1310 result = cfg80211_dev_rename(
1311 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1313 mutex_unlock(&cfg80211_mutex);
1318 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1319 struct ieee80211_txq_params txq_params;
1320 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1322 if (!rdev->ops->set_txq_params) {
1323 result = -EOPNOTSUPP;
1332 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1333 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1338 if (!netif_running(netdev)) {
1343 nla_for_each_nested(nl_txq_params,
1344 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1346 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1347 nla_data(nl_txq_params),
1348 nla_len(nl_txq_params),
1350 result = parse_txq_params(tb, &txq_params);
1354 result = rdev->ops->set_txq_params(&rdev->wiphy,
1362 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1363 result = __nl80211_set_channel(rdev, wdev, info);
1368 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1369 enum nl80211_tx_power_setting type;
1372 if (!rdev->ops->set_tx_power) {
1373 result = -EOPNOTSUPP;
1377 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1378 type = nla_get_u32(info->attrs[idx]);
1380 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1381 (type != NL80211_TX_POWER_AUTOMATIC)) {
1386 if (type != NL80211_TX_POWER_AUTOMATIC) {
1387 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1388 mbm = nla_get_u32(info->attrs[idx]);
1391 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1396 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1397 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1399 if ((!rdev->wiphy.available_antennas_tx &&
1400 !rdev->wiphy.available_antennas_rx) ||
1401 !rdev->ops->set_antenna) {
1402 result = -EOPNOTSUPP;
1406 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1407 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1409 /* reject antenna configurations which don't match the
1410 * available antenna masks, except for the "all" mask */
1411 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1412 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1417 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1418 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1420 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1427 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1428 retry_short = nla_get_u8(
1429 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1430 if (retry_short == 0) {
1434 changed |= WIPHY_PARAM_RETRY_SHORT;
1437 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1438 retry_long = nla_get_u8(
1439 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1440 if (retry_long == 0) {
1444 changed |= WIPHY_PARAM_RETRY_LONG;
1447 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1448 frag_threshold = nla_get_u32(
1449 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1450 if (frag_threshold < 256) {
1454 if (frag_threshold != (u32) -1) {
1456 * Fragments (apart from the last one) are required to
1457 * have even length. Make the fragmentation code
1458 * simpler by stripping LSB should someone try to use
1459 * odd threshold value.
1461 frag_threshold &= ~0x1;
1463 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1466 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1467 rts_threshold = nla_get_u32(
1468 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1469 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1472 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1473 coverage_class = nla_get_u8(
1474 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1475 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1479 u8 old_retry_short, old_retry_long;
1480 u32 old_frag_threshold, old_rts_threshold;
1481 u8 old_coverage_class;
1483 if (!rdev->ops->set_wiphy_params) {
1484 result = -EOPNOTSUPP;
1488 old_retry_short = rdev->wiphy.retry_short;
1489 old_retry_long = rdev->wiphy.retry_long;
1490 old_frag_threshold = rdev->wiphy.frag_threshold;
1491 old_rts_threshold = rdev->wiphy.rts_threshold;
1492 old_coverage_class = rdev->wiphy.coverage_class;
1494 if (changed & WIPHY_PARAM_RETRY_SHORT)
1495 rdev->wiphy.retry_short = retry_short;
1496 if (changed & WIPHY_PARAM_RETRY_LONG)
1497 rdev->wiphy.retry_long = retry_long;
1498 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1499 rdev->wiphy.frag_threshold = frag_threshold;
1500 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1501 rdev->wiphy.rts_threshold = rts_threshold;
1502 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1503 rdev->wiphy.coverage_class = coverage_class;
1505 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1507 rdev->wiphy.retry_short = old_retry_short;
1508 rdev->wiphy.retry_long = old_retry_long;
1509 rdev->wiphy.frag_threshold = old_frag_threshold;
1510 rdev->wiphy.rts_threshold = old_rts_threshold;
1511 rdev->wiphy.coverage_class = old_coverage_class;
1516 mutex_unlock(&rdev->mtx);
1523 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1524 struct cfg80211_registered_device *rdev,
1525 struct net_device *dev)
1529 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1533 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1534 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1535 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1536 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1537 dev->ieee80211_ptr->iftype) ||
1538 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1539 rdev->devlist_generation ^
1540 (cfg80211_rdev_list_generation << 2)))
1541 goto nla_put_failure;
1543 if (rdev->ops->get_channel) {
1544 struct ieee80211_channel *chan;
1545 enum nl80211_channel_type channel_type;
1547 chan = rdev->ops->get_channel(&rdev->wiphy, &channel_type);
1549 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1550 chan->center_freq) ||
1551 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1553 goto nla_put_failure;
1556 return genlmsg_end(msg, hdr);
1559 genlmsg_cancel(msg, hdr);
1563 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1567 int wp_start = cb->args[0];
1568 int if_start = cb->args[1];
1569 struct cfg80211_registered_device *rdev;
1570 struct wireless_dev *wdev;
1572 mutex_lock(&cfg80211_mutex);
1573 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1574 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1576 if (wp_idx < wp_start) {
1582 mutex_lock(&rdev->devlist_mtx);
1583 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1584 if (if_idx < if_start) {
1588 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1589 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1590 rdev, wdev->netdev) < 0) {
1591 mutex_unlock(&rdev->devlist_mtx);
1596 mutex_unlock(&rdev->devlist_mtx);
1601 mutex_unlock(&cfg80211_mutex);
1603 cb->args[0] = wp_idx;
1604 cb->args[1] = if_idx;
1609 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1611 struct sk_buff *msg;
1612 struct cfg80211_registered_device *dev = info->user_ptr[0];
1613 struct net_device *netdev = info->user_ptr[1];
1615 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1619 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1625 return genlmsg_reply(msg, info);
1628 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1629 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1630 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1631 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1632 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1633 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1636 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1638 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1646 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1647 nla, mntr_flags_policy))
1650 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1652 *mntrflags |= (1<<flag);
1657 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1658 struct net_device *netdev, u8 use_4addr,
1659 enum nl80211_iftype iftype)
1662 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1668 case NL80211_IFTYPE_AP_VLAN:
1669 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1672 case NL80211_IFTYPE_STATION:
1673 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1683 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1686 struct vif_params params;
1688 enum nl80211_iftype otype, ntype;
1689 struct net_device *dev = info->user_ptr[1];
1690 u32 _flags, *flags = NULL;
1691 bool change = false;
1693 memset(¶ms, 0, sizeof(params));
1695 otype = ntype = dev->ieee80211_ptr->iftype;
1697 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1698 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1701 if (ntype > NL80211_IFTYPE_MAX)
1705 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1706 struct wireless_dev *wdev = dev->ieee80211_ptr;
1708 if (ntype != NL80211_IFTYPE_MESH_POINT)
1710 if (netif_running(dev))
1714 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1715 IEEE80211_MAX_MESH_ID_LEN);
1716 wdev->mesh_id_up_len =
1717 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1718 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1719 wdev->mesh_id_up_len);
1723 if (info->attrs[NL80211_ATTR_4ADDR]) {
1724 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1726 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1730 params.use_4addr = -1;
1733 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1734 if (ntype != NL80211_IFTYPE_MONITOR)
1736 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1746 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1750 if (!err && params.use_4addr != -1)
1751 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1756 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1759 struct vif_params params;
1760 struct net_device *dev;
1762 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1765 memset(¶ms, 0, sizeof(params));
1767 if (!info->attrs[NL80211_ATTR_IFNAME])
1770 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1771 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1772 if (type > NL80211_IFTYPE_MAX)
1776 if (!rdev->ops->add_virtual_intf ||
1777 !(rdev->wiphy.interface_modes & (1 << type)))
1780 if (info->attrs[NL80211_ATTR_4ADDR]) {
1781 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1782 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1787 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1788 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1790 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1791 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1792 type, err ? NULL : &flags, ¶ms);
1794 return PTR_ERR(dev);
1796 if (type == NL80211_IFTYPE_MESH_POINT &&
1797 info->attrs[NL80211_ATTR_MESH_ID]) {
1798 struct wireless_dev *wdev = dev->ieee80211_ptr;
1801 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1802 IEEE80211_MAX_MESH_ID_LEN);
1803 wdev->mesh_id_up_len =
1804 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1805 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1806 wdev->mesh_id_up_len);
1813 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1816 struct net_device *dev = info->user_ptr[1];
1818 if (!rdev->ops->del_virtual_intf)
1821 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1824 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1827 struct net_device *dev = info->user_ptr[1];
1830 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1833 if (!rdev->ops->set_noack_map)
1836 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1838 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1841 struct get_key_cookie {
1842 struct sk_buff *msg;
1847 static void get_key_callback(void *c, struct key_params *params)
1850 struct get_key_cookie *cookie = c;
1853 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
1854 params->key_len, params->key)) ||
1856 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
1857 params->seq_len, params->seq)) ||
1859 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1861 goto nla_put_failure;
1863 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1865 goto nla_put_failure;
1868 nla_put(cookie->msg, NL80211_KEY_DATA,
1869 params->key_len, params->key)) ||
1871 nla_put(cookie->msg, NL80211_KEY_SEQ,
1872 params->seq_len, params->seq)) ||
1874 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
1876 goto nla_put_failure;
1878 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
1879 goto nla_put_failure;
1881 nla_nest_end(cookie->msg, key);
1888 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1892 struct net_device *dev = info->user_ptr[1];
1894 const u8 *mac_addr = NULL;
1896 struct get_key_cookie cookie = {
1900 struct sk_buff *msg;
1902 if (info->attrs[NL80211_ATTR_KEY_IDX])
1903 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1908 if (info->attrs[NL80211_ATTR_MAC])
1909 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1911 pairwise = !!mac_addr;
1912 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1913 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1914 if (kt >= NUM_NL80211_KEYTYPES)
1916 if (kt != NL80211_KEYTYPE_GROUP &&
1917 kt != NL80211_KEYTYPE_PAIRWISE)
1919 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1922 if (!rdev->ops->get_key)
1925 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1929 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1930 NL80211_CMD_NEW_KEY);
1932 return PTR_ERR(hdr);
1935 cookie.idx = key_idx;
1937 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1938 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
1939 goto nla_put_failure;
1941 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
1942 goto nla_put_failure;
1944 if (pairwise && mac_addr &&
1945 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1948 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1949 mac_addr, &cookie, get_key_callback);
1955 goto nla_put_failure;
1957 genlmsg_end(msg, hdr);
1958 return genlmsg_reply(msg, info);
1967 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1969 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1970 struct key_parse key;
1972 struct net_device *dev = info->user_ptr[1];
1974 err = nl80211_parse_key(info, &key);
1981 /* only support setting default key */
1982 if (!key.def && !key.defmgmt)
1985 wdev_lock(dev->ieee80211_ptr);
1988 if (!rdev->ops->set_default_key) {
1993 err = nl80211_key_allowed(dev->ieee80211_ptr);
1997 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1998 key.def_uni, key.def_multi);
2003 #ifdef CONFIG_CFG80211_WEXT
2004 dev->ieee80211_ptr->wext.default_key = key.idx;
2007 if (key.def_uni || !key.def_multi) {
2012 if (!rdev->ops->set_default_mgmt_key) {
2017 err = nl80211_key_allowed(dev->ieee80211_ptr);
2021 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2026 #ifdef CONFIG_CFG80211_WEXT
2027 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2032 wdev_unlock(dev->ieee80211_ptr);
2037 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2041 struct net_device *dev = info->user_ptr[1];
2042 struct key_parse key;
2043 const u8 *mac_addr = NULL;
2045 err = nl80211_parse_key(info, &key);
2052 if (info->attrs[NL80211_ATTR_MAC])
2053 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2055 if (key.type == -1) {
2057 key.type = NL80211_KEYTYPE_PAIRWISE;
2059 key.type = NL80211_KEYTYPE_GROUP;
2063 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2064 key.type != NL80211_KEYTYPE_GROUP)
2067 if (!rdev->ops->add_key)
2070 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2071 key.type == NL80211_KEYTYPE_PAIRWISE,
2075 wdev_lock(dev->ieee80211_ptr);
2076 err = nl80211_key_allowed(dev->ieee80211_ptr);
2078 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2079 key.type == NL80211_KEYTYPE_PAIRWISE,
2081 wdev_unlock(dev->ieee80211_ptr);
2086 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2090 struct net_device *dev = info->user_ptr[1];
2091 u8 *mac_addr = NULL;
2092 struct key_parse key;
2094 err = nl80211_parse_key(info, &key);
2098 if (info->attrs[NL80211_ATTR_MAC])
2099 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2101 if (key.type == -1) {
2103 key.type = NL80211_KEYTYPE_PAIRWISE;
2105 key.type = NL80211_KEYTYPE_GROUP;
2109 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2110 key.type != NL80211_KEYTYPE_GROUP)
2113 if (!rdev->ops->del_key)
2116 wdev_lock(dev->ieee80211_ptr);
2117 err = nl80211_key_allowed(dev->ieee80211_ptr);
2119 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2120 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2124 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2125 key.type == NL80211_KEYTYPE_PAIRWISE,
2128 #ifdef CONFIG_CFG80211_WEXT
2130 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2131 dev->ieee80211_ptr->wext.default_key = -1;
2132 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2133 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2136 wdev_unlock(dev->ieee80211_ptr);
2141 static int nl80211_parse_beacon(struct genl_info *info,
2142 struct cfg80211_beacon_data *bcn)
2144 bool haveinfo = false;
2146 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2147 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2148 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2149 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2152 memset(bcn, 0, sizeof(*bcn));
2154 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2155 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2156 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2162 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2163 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2165 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2172 if (info->attrs[NL80211_ATTR_IE]) {
2173 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2174 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2177 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2178 bcn->proberesp_ies =
2179 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2180 bcn->proberesp_ies_len =
2181 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2184 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2185 bcn->assocresp_ies =
2186 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2187 bcn->assocresp_ies_len =
2188 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2191 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2193 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2194 bcn->probe_resp_len =
2195 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2201 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2204 struct net_device *dev = info->user_ptr[1];
2205 struct wireless_dev *wdev = dev->ieee80211_ptr;
2206 struct cfg80211_ap_settings params;
2209 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2210 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2213 if (!rdev->ops->start_ap)
2216 if (wdev->beacon_interval)
2219 memset(¶ms, 0, sizeof(params));
2221 /* these are required for START_AP */
2222 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2223 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2224 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2227 err = nl80211_parse_beacon(info, ¶ms.beacon);
2231 params.beacon_interval =
2232 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2233 params.dtim_period =
2234 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2236 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2241 * In theory, some of these attributes should be required here
2242 * but since they were not used when the command was originally
2243 * added, keep them optional for old user space programs to let
2244 * them continue to work with drivers that do not need the
2245 * additional information -- drivers must check!
2247 if (info->attrs[NL80211_ATTR_SSID]) {
2248 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2250 nla_len(info->attrs[NL80211_ATTR_SSID]);
2251 if (params.ssid_len == 0 ||
2252 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2256 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2257 params.hidden_ssid = nla_get_u32(
2258 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2259 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2260 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2261 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2265 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2267 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2268 params.auth_type = nla_get_u32(
2269 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2270 if (!nl80211_valid_auth_type(params.auth_type))
2273 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2275 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2276 NL80211_MAX_NR_CIPHER_SUITES);
2280 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2281 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2283 params.inactivity_timeout = nla_get_u16(
2284 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2287 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2289 wdev->beacon_interval = params.beacon_interval;
2293 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2296 struct net_device *dev = info->user_ptr[1];
2297 struct wireless_dev *wdev = dev->ieee80211_ptr;
2298 struct cfg80211_beacon_data params;
2301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2302 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2305 if (!rdev->ops->change_beacon)
2308 if (!wdev->beacon_interval)
2311 err = nl80211_parse_beacon(info, ¶ms);
2315 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2318 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2321 struct net_device *dev = info->user_ptr[1];
2322 struct wireless_dev *wdev = dev->ieee80211_ptr;
2325 if (!rdev->ops->stop_ap)
2328 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2329 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2332 if (!wdev->beacon_interval)
2335 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
2337 wdev->beacon_interval = 0;
2341 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2342 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2343 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2344 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2345 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2346 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2347 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2350 static int parse_station_flags(struct genl_info *info,
2351 enum nl80211_iftype iftype,
2352 struct station_parameters *params)
2354 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2359 * Try parsing the new attribute first so userspace
2360 * can specify both for older kernels.
2362 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2364 struct nl80211_sta_flag_update *sta_flags;
2366 sta_flags = nla_data(nla);
2367 params->sta_flags_mask = sta_flags->mask;
2368 params->sta_flags_set = sta_flags->set;
2369 if ((params->sta_flags_mask |
2370 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2375 /* if present, parse the old attribute */
2377 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2381 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2382 nla, sta_flags_policy))
2386 * Only allow certain flags for interface types so that
2387 * other attributes are silently ignored. Remember that
2388 * this is backward compatibility code with old userspace
2389 * and shouldn't be hit in other cases anyway.
2392 case NL80211_IFTYPE_AP:
2393 case NL80211_IFTYPE_AP_VLAN:
2394 case NL80211_IFTYPE_P2P_GO:
2395 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2396 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2397 BIT(NL80211_STA_FLAG_WME) |
2398 BIT(NL80211_STA_FLAG_MFP);
2400 case NL80211_IFTYPE_P2P_CLIENT:
2401 case NL80211_IFTYPE_STATION:
2402 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2403 BIT(NL80211_STA_FLAG_TDLS_PEER);
2405 case NL80211_IFTYPE_MESH_POINT:
2406 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2407 BIT(NL80211_STA_FLAG_MFP) |
2408 BIT(NL80211_STA_FLAG_AUTHORIZED);
2413 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2415 params->sta_flags_set |= (1<<flag);
2420 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2423 struct nlattr *rate;
2426 rate = nla_nest_start(msg, attr);
2428 goto nla_put_failure;
2430 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2431 bitrate = cfg80211_calculate_bitrate(info);
2433 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate)) ||
2434 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2435 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2436 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2437 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2438 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2439 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2440 goto nla_put_failure;
2442 nla_nest_end(msg, rate);
2449 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2451 struct cfg80211_registered_device *rdev,
2452 struct net_device *dev,
2453 const u8 *mac_addr, struct station_info *sinfo)
2456 struct nlattr *sinfoattr, *bss_param;
2458 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2462 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2463 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2464 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2465 goto nla_put_failure;
2467 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2469 goto nla_put_failure;
2470 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2471 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2472 sinfo->connected_time))
2473 goto nla_put_failure;
2474 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2475 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2476 sinfo->inactive_time))
2477 goto nla_put_failure;
2478 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2479 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2481 goto nla_put_failure;
2482 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2483 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2485 goto nla_put_failure;
2486 if ((sinfo->filled & STATION_INFO_LLID) &&
2487 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2488 goto nla_put_failure;
2489 if ((sinfo->filled & STATION_INFO_PLID) &&
2490 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2491 goto nla_put_failure;
2492 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2493 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2494 sinfo->plink_state))
2495 goto nla_put_failure;
2496 switch (rdev->wiphy.signal_type) {
2497 case CFG80211_SIGNAL_TYPE_MBM:
2498 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2499 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2501 goto nla_put_failure;
2502 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2503 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2505 goto nla_put_failure;
2510 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2511 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2512 NL80211_STA_INFO_TX_BITRATE))
2513 goto nla_put_failure;
2515 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2516 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2517 NL80211_STA_INFO_RX_BITRATE))
2518 goto nla_put_failure;
2520 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2521 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2523 goto nla_put_failure;
2524 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2525 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2527 goto nla_put_failure;
2528 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2529 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2531 goto nla_put_failure;
2532 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2533 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2535 goto nla_put_failure;
2536 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2537 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2538 sinfo->beacon_loss_count))
2539 goto nla_put_failure;
2540 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2541 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2543 goto nla_put_failure;
2545 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2546 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2547 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2548 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2549 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2550 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2551 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2552 sinfo->bss_param.dtim_period) ||
2553 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2554 sinfo->bss_param.beacon_interval))
2555 goto nla_put_failure;
2557 nla_nest_end(msg, bss_param);
2559 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2560 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2561 sizeof(struct nl80211_sta_flag_update),
2563 goto nla_put_failure;
2564 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2565 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2567 goto nla_put_failure;
2568 nla_nest_end(msg, sinfoattr);
2570 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2571 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2572 sinfo->assoc_req_ies))
2573 goto nla_put_failure;
2575 return genlmsg_end(msg, hdr);
2578 genlmsg_cancel(msg, hdr);
2582 static int nl80211_dump_station(struct sk_buff *skb,
2583 struct netlink_callback *cb)
2585 struct station_info sinfo;
2586 struct cfg80211_registered_device *dev;
2587 struct net_device *netdev;
2588 u8 mac_addr[ETH_ALEN];
2589 int sta_idx = cb->args[1];
2592 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2596 if (!dev->ops->dump_station) {
2602 memset(&sinfo, 0, sizeof(sinfo));
2603 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2610 if (nl80211_send_station(skb,
2611 NETLINK_CB(cb->skb).pid,
2612 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2613 dev, netdev, mac_addr,
2622 cb->args[1] = sta_idx;
2625 nl80211_finish_netdev_dump(dev);
2630 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2633 struct net_device *dev = info->user_ptr[1];
2634 struct station_info sinfo;
2635 struct sk_buff *msg;
2636 u8 *mac_addr = NULL;
2639 memset(&sinfo, 0, sizeof(sinfo));
2641 if (!info->attrs[NL80211_ATTR_MAC])
2644 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2646 if (!rdev->ops->get_station)
2649 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2657 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2658 rdev, dev, mac_addr, &sinfo) < 0) {
2663 return genlmsg_reply(msg, info);
2667 * Get vlan interface making sure it is running and on the right wiphy.
2669 static struct net_device *get_vlan(struct genl_info *info,
2670 struct cfg80211_registered_device *rdev)
2672 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2673 struct net_device *v;
2679 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2681 return ERR_PTR(-ENODEV);
2683 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2688 if (!netif_running(v)) {
2696 return ERR_PTR(ret);
2699 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2703 struct net_device *dev = info->user_ptr[1];
2704 struct station_parameters params;
2705 u8 *mac_addr = NULL;
2707 memset(¶ms, 0, sizeof(params));
2709 params.listen_interval = -1;
2710 params.plink_state = -1;
2712 if (info->attrs[NL80211_ATTR_STA_AID])
2715 if (!info->attrs[NL80211_ATTR_MAC])
2718 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2720 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2721 params.supported_rates =
2722 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2723 params.supported_rates_len =
2724 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2727 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2728 params.listen_interval =
2729 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2731 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2733 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2735 if (!rdev->ops->change_station)
2738 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2741 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2742 params.plink_action =
2743 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2745 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2746 params.plink_state =
2747 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2749 switch (dev->ieee80211_ptr->iftype) {
2750 case NL80211_IFTYPE_AP:
2751 case NL80211_IFTYPE_AP_VLAN:
2752 case NL80211_IFTYPE_P2P_GO:
2753 /* disallow mesh-specific things */
2754 if (params.plink_action)
2757 /* TDLS can't be set, ... */
2758 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2761 * ... but don't bother the driver with it. This works around
2762 * a hostapd/wpa_supplicant issue -- it always includes the
2763 * TLDS_PEER flag in the mask even for AP mode.
2765 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2767 /* accept only the listed bits */
2768 if (params.sta_flags_mask &
2769 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2770 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2771 BIT(NL80211_STA_FLAG_WME) |
2772 BIT(NL80211_STA_FLAG_MFP)))
2775 /* must be last in here for error handling */
2776 params.vlan = get_vlan(info, rdev);
2777 if (IS_ERR(params.vlan))
2778 return PTR_ERR(params.vlan);
2780 case NL80211_IFTYPE_P2P_CLIENT:
2781 case NL80211_IFTYPE_STATION:
2783 * Don't allow userspace to change the TDLS_PEER flag,
2784 * but silently ignore attempts to change it since we
2785 * don't have state here to verify that it doesn't try
2786 * to change the flag.
2788 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2790 case NL80211_IFTYPE_ADHOC:
2791 /* disallow things sta doesn't support */
2792 if (params.plink_action)
2796 if (params.listen_interval >= 0)
2798 /* reject any changes other than AUTHORIZED */
2799 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2802 case NL80211_IFTYPE_MESH_POINT:
2803 /* disallow things mesh doesn't support */
2808 if (params.listen_interval >= 0)
2811 * No special handling for TDLS here -- the userspace
2812 * mesh code doesn't have this bug.
2814 if (params.sta_flags_mask &
2815 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2816 BIT(NL80211_STA_FLAG_MFP) |
2817 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2824 /* be aware of params.vlan when changing code here */
2826 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2829 dev_put(params.vlan);
2834 static struct nla_policy
2835 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2836 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2837 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2840 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2844 struct net_device *dev = info->user_ptr[1];
2845 struct station_parameters params;
2846 u8 *mac_addr = NULL;
2848 memset(¶ms, 0, sizeof(params));
2850 if (!info->attrs[NL80211_ATTR_MAC])
2853 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2856 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2859 if (!info->attrs[NL80211_ATTR_STA_AID])
2862 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2863 params.supported_rates =
2864 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2865 params.supported_rates_len =
2866 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2867 params.listen_interval =
2868 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2870 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2871 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2874 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2876 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2878 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2879 params.plink_action =
2880 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2882 if (!rdev->ops->add_station)
2885 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
2888 switch (dev->ieee80211_ptr->iftype) {
2889 case NL80211_IFTYPE_AP:
2890 case NL80211_IFTYPE_AP_VLAN:
2891 case NL80211_IFTYPE_P2P_GO:
2892 /* parse WME attributes if sta is WME capable */
2893 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2894 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2895 info->attrs[NL80211_ATTR_STA_WME]) {
2896 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2899 nla = info->attrs[NL80211_ATTR_STA_WME];
2900 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2901 nl80211_sta_wme_policy);
2905 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2906 params.uapsd_queues =
2907 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2908 if (params.uapsd_queues &
2909 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2912 if (tb[NL80211_STA_WME_MAX_SP])
2914 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2917 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2920 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2922 /* TDLS peers cannot be added */
2923 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2925 /* but don't bother the driver with it */
2926 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2928 /* must be last in here for error handling */
2929 params.vlan = get_vlan(info, rdev);
2930 if (IS_ERR(params.vlan))
2931 return PTR_ERR(params.vlan);
2933 case NL80211_IFTYPE_MESH_POINT:
2934 /* TDLS peers cannot be added */
2935 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2938 case NL80211_IFTYPE_STATION:
2939 /* Only TDLS peers can be added */
2940 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2942 /* Can only add if TDLS ... */
2943 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
2945 /* ... with external setup is supported */
2946 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2953 /* be aware of params.vlan when changing code here */
2955 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2958 dev_put(params.vlan);
2962 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2965 struct net_device *dev = info->user_ptr[1];
2966 u8 *mac_addr = NULL;
2968 if (info->attrs[NL80211_ATTR_MAC])
2969 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2971 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2972 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2974 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2977 if (!rdev->ops->del_station)
2980 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2983 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2984 int flags, struct net_device *dev,
2985 u8 *dst, u8 *next_hop,
2986 struct mpath_info *pinfo)
2989 struct nlattr *pinfoattr;
2991 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2995 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2996 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
2997 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
2998 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
2999 goto nla_put_failure;
3001 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3003 goto nla_put_failure;
3004 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3005 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3007 goto nla_put_failure;
3008 if (((pinfo->filled & MPATH_INFO_SN) &&
3009 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3010 ((pinfo->filled & MPATH_INFO_METRIC) &&
3011 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3013 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3014 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3016 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3017 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3019 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3020 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3021 pinfo->discovery_timeout)) ||
3022 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3023 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3024 pinfo->discovery_retries)))
3025 goto nla_put_failure;
3027 nla_nest_end(msg, pinfoattr);
3029 return genlmsg_end(msg, hdr);
3032 genlmsg_cancel(msg, hdr);
3036 static int nl80211_dump_mpath(struct sk_buff *skb,
3037 struct netlink_callback *cb)
3039 struct mpath_info pinfo;
3040 struct cfg80211_registered_device *dev;
3041 struct net_device *netdev;
3043 u8 next_hop[ETH_ALEN];
3044 int path_idx = cb->args[1];
3047 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3051 if (!dev->ops->dump_mpath) {
3056 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3062 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3063 dst, next_hop, &pinfo);
3069 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3070 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3071 netdev, dst, next_hop,
3080 cb->args[1] = path_idx;
3083 nl80211_finish_netdev_dump(dev);
3087 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3089 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3091 struct net_device *dev = info->user_ptr[1];
3092 struct mpath_info pinfo;
3093 struct sk_buff *msg;
3095 u8 next_hop[ETH_ALEN];
3097 memset(&pinfo, 0, sizeof(pinfo));
3099 if (!info->attrs[NL80211_ATTR_MAC])
3102 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3104 if (!rdev->ops->get_mpath)
3107 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3110 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3114 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3118 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3119 dev, dst, next_hop, &pinfo) < 0) {
3124 return genlmsg_reply(msg, info);
3127 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3129 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3130 struct net_device *dev = info->user_ptr[1];
3132 u8 *next_hop = NULL;
3134 if (!info->attrs[NL80211_ATTR_MAC])
3137 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3140 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3141 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3143 if (!rdev->ops->change_mpath)
3146 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3149 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3152 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3155 struct net_device *dev = info->user_ptr[1];
3157 u8 *next_hop = NULL;
3159 if (!info->attrs[NL80211_ATTR_MAC])
3162 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3165 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3166 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3168 if (!rdev->ops->add_mpath)
3171 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3174 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3177 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3179 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3180 struct net_device *dev = info->user_ptr[1];
3183 if (info->attrs[NL80211_ATTR_MAC])
3184 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3186 if (!rdev->ops->del_mpath)
3189 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3192 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3195 struct net_device *dev = info->user_ptr[1];
3196 struct bss_parameters params;
3198 memset(¶ms, 0, sizeof(params));
3199 /* default to not changing parameters */
3200 params.use_cts_prot = -1;
3201 params.use_short_preamble = -1;
3202 params.use_short_slot_time = -1;
3203 params.ap_isolate = -1;
3204 params.ht_opmode = -1;
3206 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3207 params.use_cts_prot =
3208 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3209 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3210 params.use_short_preamble =
3211 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3212 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3213 params.use_short_slot_time =
3214 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3215 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3216 params.basic_rates =
3217 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3218 params.basic_rates_len =
3219 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3221 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3222 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3223 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3225 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3227 if (!rdev->ops->change_bss)
3230 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3231 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3234 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3237 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3238 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3239 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3240 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3241 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3242 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3243 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3246 static int parse_reg_rule(struct nlattr *tb[],
3247 struct ieee80211_reg_rule *reg_rule)
3249 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3250 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3252 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3254 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3256 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3258 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3260 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3263 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3265 freq_range->start_freq_khz =
3266 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3267 freq_range->end_freq_khz =
3268 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3269 freq_range->max_bandwidth_khz =
3270 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3272 power_rule->max_eirp =
3273 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3275 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3276 power_rule->max_antenna_gain =
3277 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3282 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3288 * You should only get this when cfg80211 hasn't yet initialized
3289 * completely when built-in to the kernel right between the time
3290 * window between nl80211_init() and regulatory_init(), if that is
3293 mutex_lock(&cfg80211_mutex);
3294 if (unlikely(!cfg80211_regdomain)) {
3295 mutex_unlock(&cfg80211_mutex);
3296 return -EINPROGRESS;
3298 mutex_unlock(&cfg80211_mutex);
3300 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3303 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3305 r = regulatory_hint_user(data);
3310 static int nl80211_get_mesh_config(struct sk_buff *skb,
3311 struct genl_info *info)
3313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3314 struct net_device *dev = info->user_ptr[1];
3315 struct wireless_dev *wdev = dev->ieee80211_ptr;
3316 struct mesh_config cur_params;
3319 struct nlattr *pinfoattr;
3320 struct sk_buff *msg;
3322 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3325 if (!rdev->ops->get_mesh_config)
3329 /* If not connected, get default parameters */
3330 if (!wdev->mesh_id_len)
3331 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3333 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3340 /* Draw up a netlink message to send back */
3341 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3344 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3345 NL80211_CMD_GET_MESH_CONFIG);
3348 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3350 goto nla_put_failure;
3351 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3352 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3353 cur_params.dot11MeshRetryTimeout) ||
3354 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3355 cur_params.dot11MeshConfirmTimeout) ||
3356 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3357 cur_params.dot11MeshHoldingTimeout) ||
3358 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3359 cur_params.dot11MeshMaxPeerLinks) ||
3360 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3361 cur_params.dot11MeshMaxRetries) ||
3362 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3363 cur_params.dot11MeshTTL) ||
3364 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3365 cur_params.element_ttl) ||
3366 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3367 cur_params.auto_open_plinks) ||
3368 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3369 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3370 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3371 cur_params.dot11MeshHWMPmaxPREQretries) ||
3372 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3373 cur_params.path_refresh_time) ||
3374 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3375 cur_params.min_discovery_timeout) ||
3376 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3377 cur_params.dot11MeshHWMPactivePathTimeout) ||
3378 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3379 cur_params.dot11MeshHWMPpreqMinInterval) ||
3380 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3381 cur_params.dot11MeshHWMPperrMinInterval) ||
3382 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3383 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3384 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3385 cur_params.dot11MeshHWMPRootMode) ||
3386 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3387 cur_params.dot11MeshHWMPRannInterval) ||
3388 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3389 cur_params.dot11MeshGateAnnouncementProtocol) ||
3390 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3391 cur_params.dot11MeshForwarding) ||
3392 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3393 cur_params.rssi_threshold))
3394 goto nla_put_failure;
3395 nla_nest_end(msg, pinfoattr);
3396 genlmsg_end(msg, hdr);
3397 return genlmsg_reply(msg, info);
3400 genlmsg_cancel(msg, hdr);
3406 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3407 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3408 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3409 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3410 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3411 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3412 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3413 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3414 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3415 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3417 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3418 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3419 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3420 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3421 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3422 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3423 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3424 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3425 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3426 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3427 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3428 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32},
3431 static const struct nla_policy
3432 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3433 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3434 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3435 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3436 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3437 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3438 .len = IEEE80211_MAX_DATA_LEN },
3439 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3442 static int nl80211_parse_mesh_config(struct genl_info *info,
3443 struct mesh_config *cfg,
3446 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3449 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3451 if (table[attr_num]) {\
3452 cfg->param = nla_fn(table[attr_num]); \
3453 mask |= (1 << (attr_num - 1)); \
3458 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3460 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3461 info->attrs[NL80211_ATTR_MESH_CONFIG],
3462 nl80211_meshconf_params_policy))
3465 /* This makes sure that there aren't more than 32 mesh config
3466 * parameters (otherwise our bitfield scheme would not work.) */
3467 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3469 /* Fill in the params struct */
3470 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3471 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3472 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3473 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3474 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3475 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3476 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3477 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3478 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3479 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3480 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3481 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3482 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3483 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3484 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3485 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3486 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
3487 mask, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3489 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3490 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3492 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3493 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3494 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3495 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3497 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3498 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3500 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3501 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3503 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3504 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3506 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3507 dot11MeshHWMPnetDiameterTraversalTime,
3508 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3510 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3511 dot11MeshHWMPRootMode, mask,
3512 NL80211_MESHCONF_HWMP_ROOTMODE,
3514 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3515 dot11MeshHWMPRannInterval, mask,
3516 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3518 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3519 dot11MeshGateAnnouncementProtocol, mask,
3520 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3522 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3523 mask, NL80211_MESHCONF_FORWARDING, nla_get_u8);
3524 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3525 mask, NL80211_MESHCONF_RSSI_THRESHOLD, nla_get_u32);
3531 #undef FILL_IN_MESH_PARAM_IF_SET
3534 static int nl80211_parse_mesh_setup(struct genl_info *info,
3535 struct mesh_setup *setup)
3537 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3539 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3541 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3542 info->attrs[NL80211_ATTR_MESH_SETUP],
3543 nl80211_mesh_setup_params_policy))
3546 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3547 setup->sync_method =
3548 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3549 IEEE80211_SYNC_METHOD_VENDOR :
3550 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3552 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3553 setup->path_sel_proto =
3554 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3555 IEEE80211_PATH_PROTOCOL_VENDOR :
3556 IEEE80211_PATH_PROTOCOL_HWMP;
3558 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3559 setup->path_metric =
3560 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3561 IEEE80211_PATH_METRIC_VENDOR :
3562 IEEE80211_PATH_METRIC_AIRTIME;
3565 if (tb[NL80211_MESH_SETUP_IE]) {
3566 struct nlattr *ieattr =
3567 tb[NL80211_MESH_SETUP_IE];
3568 if (!is_valid_ie_attr(ieattr))
3570 setup->ie = nla_data(ieattr);
3571 setup->ie_len = nla_len(ieattr);
3573 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3574 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3579 static int nl80211_update_mesh_config(struct sk_buff *skb,
3580 struct genl_info *info)
3582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3583 struct net_device *dev = info->user_ptr[1];
3584 struct wireless_dev *wdev = dev->ieee80211_ptr;
3585 struct mesh_config cfg;
3589 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3592 if (!rdev->ops->update_mesh_config)
3595 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3600 if (!wdev->mesh_id_len)
3604 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3612 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3614 struct sk_buff *msg;
3616 struct nlattr *nl_reg_rules;
3620 mutex_lock(&cfg80211_mutex);
3622 if (!cfg80211_regdomain)
3625 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3631 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3632 NL80211_CMD_GET_REG);
3636 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3637 cfg80211_regdomain->alpha2) ||
3638 (cfg80211_regdomain->dfs_region &&
3639 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3640 cfg80211_regdomain->dfs_region)))
3641 goto nla_put_failure;
3643 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3645 goto nla_put_failure;
3647 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3648 struct nlattr *nl_reg_rule;
3649 const struct ieee80211_reg_rule *reg_rule;
3650 const struct ieee80211_freq_range *freq_range;
3651 const struct ieee80211_power_rule *power_rule;
3653 reg_rule = &cfg80211_regdomain->reg_rules[i];
3654 freq_range = ®_rule->freq_range;
3655 power_rule = ®_rule->power_rule;
3657 nl_reg_rule = nla_nest_start(msg, i);
3659 goto nla_put_failure;
3661 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3663 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3664 freq_range->start_freq_khz) ||
3665 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3666 freq_range->end_freq_khz) ||
3667 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3668 freq_range->max_bandwidth_khz) ||
3669 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3670 power_rule->max_antenna_gain) ||
3671 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3672 power_rule->max_eirp))
3673 goto nla_put_failure;
3675 nla_nest_end(msg, nl_reg_rule);
3678 nla_nest_end(msg, nl_reg_rules);
3680 genlmsg_end(msg, hdr);
3681 err = genlmsg_reply(msg, info);
3685 genlmsg_cancel(msg, hdr);
3690 mutex_unlock(&cfg80211_mutex);
3694 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3696 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3697 struct nlattr *nl_reg_rule;
3698 char *alpha2 = NULL;
3699 int rem_reg_rules = 0, r = 0;
3700 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3702 struct ieee80211_regdomain *rd = NULL;
3704 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3707 if (!info->attrs[NL80211_ATTR_REG_RULES])
3710 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3712 if (info->attrs[NL80211_ATTR_DFS_REGION])
3713 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3715 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3718 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3722 mutex_lock(&cfg80211_mutex);
3724 if (!reg_is_valid_request(alpha2)) {
3729 size_of_regd = sizeof(struct ieee80211_regdomain) +
3730 (num_rules * sizeof(struct ieee80211_reg_rule));
3732 rd = kzalloc(size_of_regd, GFP_KERNEL);
3738 rd->n_reg_rules = num_rules;
3739 rd->alpha2[0] = alpha2[0];
3740 rd->alpha2[1] = alpha2[1];
3743 * Disable DFS master mode if the DFS region was
3744 * not supported or known on this kernel.
3746 if (reg_supported_dfs_region(dfs_region))
3747 rd->dfs_region = dfs_region;
3749 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3751 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3752 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3754 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3760 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3766 BUG_ON(rule_idx != num_rules);
3770 mutex_unlock(&cfg80211_mutex);
3775 mutex_unlock(&cfg80211_mutex);
3780 static int validate_scan_freqs(struct nlattr *freqs)
3782 struct nlattr *attr1, *attr2;
3783 int n_channels = 0, tmp1, tmp2;
3785 nla_for_each_nested(attr1, freqs, tmp1) {
3788 * Some hardware has a limited channel list for
3789 * scanning, and it is pretty much nonsensical
3790 * to scan for a channel twice, so disallow that
3791 * and don't require drivers to check that the
3792 * channel list they get isn't longer than what
3793 * they can scan, as long as they can scan all
3794 * the channels they registered at once.
3796 nla_for_each_nested(attr2, freqs, tmp2)
3797 if (attr1 != attr2 &&
3798 nla_get_u32(attr1) == nla_get_u32(attr2))
3805 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3808 struct net_device *dev = info->user_ptr[1];
3809 struct cfg80211_scan_request *request;
3810 struct nlattr *attr;
3811 struct wiphy *wiphy;
3812 int err, tmp, n_ssids = 0, n_channels, i;
3815 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3818 wiphy = &rdev->wiphy;
3820 if (!rdev->ops->scan)
3826 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3827 n_channels = validate_scan_freqs(
3828 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3832 enum ieee80211_band band;
3835 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3836 if (wiphy->bands[band])
3837 n_channels += wiphy->bands[band]->n_channels;
3840 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3841 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3844 if (n_ssids > wiphy->max_scan_ssids)
3847 if (info->attrs[NL80211_ATTR_IE])
3848 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3852 if (ie_len > wiphy->max_scan_ie_len)
3855 request = kzalloc(sizeof(*request)
3856 + sizeof(*request->ssids) * n_ssids
3857 + sizeof(*request->channels) * n_channels
3858 + ie_len, GFP_KERNEL);
3863 request->ssids = (void *)&request->channels[n_channels];
3864 request->n_ssids = n_ssids;
3867 request->ie = (void *)(request->ssids + n_ssids);
3869 request->ie = (void *)(request->channels + n_channels);
3873 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3874 /* user specified, bail out if channel not found */
3875 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3876 struct ieee80211_channel *chan;
3878 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3885 /* ignore disabled channels */
3886 if (chan->flags & IEEE80211_CHAN_DISABLED)
3889 request->channels[i] = chan;
3893 enum ieee80211_band band;
3896 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3898 if (!wiphy->bands[band])
3900 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3901 struct ieee80211_channel *chan;
3903 chan = &wiphy->bands[band]->channels[j];
3905 if (chan->flags & IEEE80211_CHAN_DISABLED)
3908 request->channels[i] = chan;
3919 request->n_channels = i;
3922 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3923 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3924 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3928 request->ssids[i].ssid_len = nla_len(attr);
3929 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3934 if (info->attrs[NL80211_ATTR_IE]) {
3935 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3936 memcpy((void *)request->ie,
3937 nla_data(info->attrs[NL80211_ATTR_IE]),
3941 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3942 if (wiphy->bands[i])
3944 (1 << wiphy->bands[i]->n_bitrates) - 1;
3946 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3947 nla_for_each_nested(attr,
3948 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3950 enum ieee80211_band band = nla_type(attr);
3952 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3956 err = ieee80211_get_ratemask(wiphy->bands[band],
3959 &request->rates[band]);
3966 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3969 request->wiphy = &rdev->wiphy;
3971 rdev->scan_req = request;
3972 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3975 nl80211_send_scan_start(rdev, dev);
3979 rdev->scan_req = NULL;
3986 static int nl80211_start_sched_scan(struct sk_buff *skb,
3987 struct genl_info *info)
3989 struct cfg80211_sched_scan_request *request;
3990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3991 struct net_device *dev = info->user_ptr[1];
3992 struct nlattr *attr;
3993 struct wiphy *wiphy;
3994 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
3996 enum ieee80211_band band;
3998 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4000 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4001 !rdev->ops->sched_scan_start)
4004 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4007 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4010 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4014 wiphy = &rdev->wiphy;
4016 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4017 n_channels = validate_scan_freqs(
4018 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4024 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4025 if (wiphy->bands[band])
4026 n_channels += wiphy->bands[band]->n_channels;
4029 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4030 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4034 if (n_ssids > wiphy->max_sched_scan_ssids)
4037 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4038 nla_for_each_nested(attr,
4039 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4043 if (n_match_sets > wiphy->max_match_sets)
4046 if (info->attrs[NL80211_ATTR_IE])
4047 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4051 if (ie_len > wiphy->max_sched_scan_ie_len)
4054 mutex_lock(&rdev->sched_scan_mtx);
4056 if (rdev->sched_scan_req) {
4061 request = kzalloc(sizeof(*request)
4062 + sizeof(*request->ssids) * n_ssids
4063 + sizeof(*request->match_sets) * n_match_sets
4064 + sizeof(*request->channels) * n_channels
4065 + ie_len, GFP_KERNEL);
4072 request->ssids = (void *)&request->channels[n_channels];
4073 request->n_ssids = n_ssids;
4076 request->ie = (void *)(request->ssids + n_ssids);
4078 request->ie = (void *)(request->channels + n_channels);
4083 request->match_sets = (void *)(request->ie + ie_len);
4084 else if (request->ssids)
4085 request->match_sets =
4086 (void *)(request->ssids + n_ssids);
4088 request->match_sets =
4089 (void *)(request->channels + n_channels);
4091 request->n_match_sets = n_match_sets;
4094 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4095 /* user specified, bail out if channel not found */
4096 nla_for_each_nested(attr,
4097 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4099 struct ieee80211_channel *chan;
4101 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4108 /* ignore disabled channels */
4109 if (chan->flags & IEEE80211_CHAN_DISABLED)
4112 request->channels[i] = chan;
4117 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4119 if (!wiphy->bands[band])
4121 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4122 struct ieee80211_channel *chan;
4124 chan = &wiphy->bands[band]->channels[j];
4126 if (chan->flags & IEEE80211_CHAN_DISABLED)
4129 request->channels[i] = chan;
4140 request->n_channels = i;
4143 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4144 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4146 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4150 request->ssids[i].ssid_len = nla_len(attr);
4151 memcpy(request->ssids[i].ssid, nla_data(attr),
4158 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4159 nla_for_each_nested(attr,
4160 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4162 struct nlattr *ssid;
4164 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4165 nla_data(attr), nla_len(attr),
4166 nl80211_match_policy);
4167 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4169 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4173 memcpy(request->match_sets[i].ssid.ssid,
4174 nla_data(ssid), nla_len(ssid));
4175 request->match_sets[i].ssid.ssid_len =
4182 if (info->attrs[NL80211_ATTR_IE]) {
4183 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4184 memcpy((void *)request->ie,
4185 nla_data(info->attrs[NL80211_ATTR_IE]),
4190 request->wiphy = &rdev->wiphy;
4191 request->interval = interval;
4193 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4195 rdev->sched_scan_req = request;
4196 nl80211_send_sched_scan(rdev, dev,
4197 NL80211_CMD_START_SCHED_SCAN);
4204 mutex_unlock(&rdev->sched_scan_mtx);
4208 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4209 struct genl_info *info)
4211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4214 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4215 !rdev->ops->sched_scan_stop)
4218 mutex_lock(&rdev->sched_scan_mtx);
4219 err = __cfg80211_stop_sched_scan(rdev, false);
4220 mutex_unlock(&rdev->sched_scan_mtx);
4225 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4227 struct cfg80211_registered_device *rdev,
4228 struct wireless_dev *wdev,
4229 struct cfg80211_internal_bss *intbss)
4231 struct cfg80211_bss *res = &intbss->pub;
4235 ASSERT_WDEV_LOCK(wdev);
4237 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4238 NL80211_CMD_NEW_SCAN_RESULTS);
4242 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4244 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4245 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4246 goto nla_put_failure;
4248 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4250 goto nla_put_failure;
4251 if ((!is_zero_ether_addr(res->bssid) &&
4252 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4253 (res->information_elements && res->len_information_elements &&
4254 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4255 res->len_information_elements,
4256 res->information_elements)) ||
4257 (res->beacon_ies && res->len_beacon_ies &&
4258 res->beacon_ies != res->information_elements &&
4259 nla_put(msg, NL80211_BSS_BEACON_IES,
4260 res->len_beacon_ies, res->beacon_ies)))
4261 goto nla_put_failure;
4263 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4264 goto nla_put_failure;
4265 if (res->beacon_interval &&
4266 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4267 goto nla_put_failure;
4268 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4269 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4270 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4271 jiffies_to_msecs(jiffies - intbss->ts)))
4272 goto nla_put_failure;
4274 switch (rdev->wiphy.signal_type) {
4275 case CFG80211_SIGNAL_TYPE_MBM:
4276 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4277 goto nla_put_failure;
4279 case CFG80211_SIGNAL_TYPE_UNSPEC:
4280 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4281 goto nla_put_failure;
4287 switch (wdev->iftype) {
4288 case NL80211_IFTYPE_P2P_CLIENT:
4289 case NL80211_IFTYPE_STATION:
4290 if (intbss == wdev->current_bss &&
4291 nla_put_u32(msg, NL80211_BSS_STATUS,
4292 NL80211_BSS_STATUS_ASSOCIATED))
4293 goto nla_put_failure;
4295 case NL80211_IFTYPE_ADHOC:
4296 if (intbss == wdev->current_bss &&
4297 nla_put_u32(msg, NL80211_BSS_STATUS,
4298 NL80211_BSS_STATUS_IBSS_JOINED))
4299 goto nla_put_failure;
4305 nla_nest_end(msg, bss);
4307 return genlmsg_end(msg, hdr);
4310 genlmsg_cancel(msg, hdr);
4314 static int nl80211_dump_scan(struct sk_buff *skb,
4315 struct netlink_callback *cb)
4317 struct cfg80211_registered_device *rdev;
4318 struct net_device *dev;
4319 struct cfg80211_internal_bss *scan;
4320 struct wireless_dev *wdev;
4321 int start = cb->args[1], idx = 0;
4324 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4328 wdev = dev->ieee80211_ptr;
4331 spin_lock_bh(&rdev->bss_lock);
4332 cfg80211_bss_expire(rdev);
4334 cb->seq = rdev->bss_generation;
4336 list_for_each_entry(scan, &rdev->bss_list, list) {
4339 if (nl80211_send_bss(skb, cb,
4340 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4341 rdev, wdev, scan) < 0) {
4347 spin_unlock_bh(&rdev->bss_lock);
4351 nl80211_finish_netdev_dump(rdev);
4356 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4357 int flags, struct net_device *dev,
4358 struct survey_info *survey)
4361 struct nlattr *infoattr;
4363 hdr = nl80211hdr_put(msg, pid, seq, flags,
4364 NL80211_CMD_NEW_SURVEY_RESULTS);
4368 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4369 goto nla_put_failure;
4371 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4373 goto nla_put_failure;
4375 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4376 survey->channel->center_freq))
4377 goto nla_put_failure;
4379 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4380 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4381 goto nla_put_failure;
4382 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4383 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4384 goto nla_put_failure;
4385 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4386 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4387 survey->channel_time))
4388 goto nla_put_failure;
4389 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4390 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4391 survey->channel_time_busy))
4392 goto nla_put_failure;
4393 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4394 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4395 survey->channel_time_ext_busy))
4396 goto nla_put_failure;
4397 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4398 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4399 survey->channel_time_rx))
4400 goto nla_put_failure;
4401 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4402 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4403 survey->channel_time_tx))
4404 goto nla_put_failure;
4406 nla_nest_end(msg, infoattr);
4408 return genlmsg_end(msg, hdr);
4411 genlmsg_cancel(msg, hdr);
4415 static int nl80211_dump_survey(struct sk_buff *skb,
4416 struct netlink_callback *cb)
4418 struct survey_info survey;
4419 struct cfg80211_registered_device *dev;
4420 struct net_device *netdev;
4421 int survey_idx = cb->args[1];
4424 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4428 if (!dev->ops->dump_survey) {
4434 struct ieee80211_channel *chan;
4436 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4443 /* Survey without a channel doesn't make sense */
4444 if (!survey.channel) {
4449 chan = ieee80211_get_channel(&dev->wiphy,
4450 survey.channel->center_freq);
4451 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4456 if (nl80211_send_survey(skb,
4457 NETLINK_CB(cb->skb).pid,
4458 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4466 cb->args[1] = survey_idx;
4469 nl80211_finish_netdev_dump(dev);
4473 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4475 return auth_type <= NL80211_AUTHTYPE_MAX;
4478 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4480 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4481 NL80211_WPA_VERSION_2));
4484 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4487 struct net_device *dev = info->user_ptr[1];
4488 struct ieee80211_channel *chan;
4489 const u8 *bssid, *ssid, *ie = NULL;
4490 int err, ssid_len, ie_len = 0;
4491 enum nl80211_auth_type auth_type;
4492 struct key_parse key;
4493 bool local_state_change;
4495 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4498 if (!info->attrs[NL80211_ATTR_MAC])
4501 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4504 if (!info->attrs[NL80211_ATTR_SSID])
4507 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4510 err = nl80211_parse_key(info, &key);
4515 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4517 if (!key.p.key || !key.p.key_len)
4519 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4520 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4521 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4522 key.p.key_len != WLAN_KEY_LEN_WEP104))
4534 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4535 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4544 if (!rdev->ops->auth)
4547 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4548 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4551 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4552 chan = ieee80211_get_channel(&rdev->wiphy,
4553 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4554 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4557 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4558 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4560 if (info->attrs[NL80211_ATTR_IE]) {
4561 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4562 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4565 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4566 if (!nl80211_valid_auth_type(auth_type))
4569 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4572 * Since we no longer track auth state, ignore
4573 * requests to only change local state.
4575 if (local_state_change)
4578 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4579 ssid, ssid_len, ie, ie_len,
4580 key.p.key, key.p.key_len, key.idx);
4583 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4584 struct genl_info *info,
4585 struct cfg80211_crypto_settings *settings,
4588 memset(settings, 0, sizeof(*settings));
4590 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4592 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4594 proto = nla_get_u16(
4595 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4596 settings->control_port_ethertype = cpu_to_be16(proto);
4597 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4600 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4601 settings->control_port_no_encrypt = true;
4603 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4605 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4609 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4610 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4611 settings->n_ciphers_pairwise = len / sizeof(u32);
4613 if (len % sizeof(u32))
4616 if (settings->n_ciphers_pairwise > cipher_limit)
4619 memcpy(settings->ciphers_pairwise, data, len);
4621 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4622 if (!cfg80211_supported_cipher_suite(
4624 settings->ciphers_pairwise[i]))
4628 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4629 settings->cipher_group =
4630 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4631 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4632 settings->cipher_group))
4636 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4637 settings->wpa_versions =
4638 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4639 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4643 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4647 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4648 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4649 settings->n_akm_suites = len / sizeof(u32);
4651 if (len % sizeof(u32))
4654 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4657 memcpy(settings->akm_suites, data, len);
4663 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4666 struct net_device *dev = info->user_ptr[1];
4667 struct cfg80211_crypto_settings crypto;
4668 struct ieee80211_channel *chan;
4669 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4670 int err, ssid_len, ie_len = 0;
4671 bool use_mfp = false;
4673 struct ieee80211_ht_cap *ht_capa = NULL;
4674 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4676 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4679 if (!info->attrs[NL80211_ATTR_MAC] ||
4680 !info->attrs[NL80211_ATTR_SSID] ||
4681 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4684 if (!rdev->ops->assoc)
4687 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4688 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4691 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4693 chan = ieee80211_get_channel(&rdev->wiphy,
4694 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4695 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4698 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4699 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4701 if (info->attrs[NL80211_ATTR_IE]) {
4702 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4703 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4706 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4707 enum nl80211_mfp mfp =
4708 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4709 if (mfp == NL80211_MFP_REQUIRED)
4711 else if (mfp != NL80211_MFP_NO)
4715 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4716 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4718 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4719 flags |= ASSOC_REQ_DISABLE_HT;
4721 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4723 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4725 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4728 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4731 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4733 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4734 ssid, ssid_len, ie, ie_len, use_mfp,
4735 &crypto, flags, ht_capa,
4741 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4743 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4744 struct net_device *dev = info->user_ptr[1];
4745 const u8 *ie = NULL, *bssid;
4748 bool local_state_change;
4750 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4753 if (!info->attrs[NL80211_ATTR_MAC])
4756 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4759 if (!rdev->ops->deauth)
4762 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4763 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4766 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4768 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4769 if (reason_code == 0) {
4770 /* Reason Code 0 is reserved */
4774 if (info->attrs[NL80211_ATTR_IE]) {
4775 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4776 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4779 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4781 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4782 local_state_change);
4785 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4788 struct net_device *dev = info->user_ptr[1];
4789 const u8 *ie = NULL, *bssid;
4792 bool local_state_change;
4794 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4797 if (!info->attrs[NL80211_ATTR_MAC])
4800 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4803 if (!rdev->ops->disassoc)
4806 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4807 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4810 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4812 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4813 if (reason_code == 0) {
4814 /* Reason Code 0 is reserved */
4818 if (info->attrs[NL80211_ATTR_IE]) {
4819 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4820 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4823 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4825 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4826 local_state_change);
4830 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4831 int mcast_rate[IEEE80211_NUM_BANDS],
4834 struct wiphy *wiphy = &rdev->wiphy;
4838 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4839 struct ieee80211_supported_band *sband;
4841 sband = wiphy->bands[band];
4845 for (i = 0; i < sband->n_bitrates; i++) {
4846 if (sband->bitrates[i].bitrate == rateval) {
4847 mcast_rate[band] = i + 1;
4857 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4860 struct net_device *dev = info->user_ptr[1];
4861 struct cfg80211_ibss_params ibss;
4862 struct wiphy *wiphy;
4863 struct cfg80211_cached_keys *connkeys = NULL;
4866 memset(&ibss, 0, sizeof(ibss));
4868 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4871 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4872 !info->attrs[NL80211_ATTR_SSID] ||
4873 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4876 ibss.beacon_interval = 100;
4878 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4879 ibss.beacon_interval =
4880 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4881 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4885 if (!rdev->ops->join_ibss)
4888 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4891 wiphy = &rdev->wiphy;
4893 if (info->attrs[NL80211_ATTR_MAC]) {
4894 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4896 if (!is_valid_ether_addr(ibss.bssid))
4899 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4900 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4902 if (info->attrs[NL80211_ATTR_IE]) {
4903 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4904 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4907 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4908 enum nl80211_channel_type channel_type;
4910 channel_type = nla_get_u32(
4911 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4912 if (channel_type != NL80211_CHAN_NO_HT &&
4913 channel_type != NL80211_CHAN_HT20 &&
4914 channel_type != NL80211_CHAN_HT40MINUS &&
4915 channel_type != NL80211_CHAN_HT40PLUS)
4918 if (channel_type != NL80211_CHAN_NO_HT &&
4919 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4922 ibss.channel_type = channel_type;
4924 ibss.channel_type = NL80211_CHAN_NO_HT;
4927 ibss.channel = rdev_freq_to_chan(rdev,
4928 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4930 if (!ibss.channel ||
4931 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4932 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4935 /* Both channels should be able to initiate communication */
4936 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4937 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4938 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4942 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4943 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4945 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4947 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4949 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4950 struct ieee80211_supported_band *sband =
4951 wiphy->bands[ibss.channel->band];
4953 err = ieee80211_get_ratemask(sband, rates, n_rates,
4959 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4960 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4961 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4964 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4965 connkeys = nl80211_parse_connkeys(rdev,
4966 info->attrs[NL80211_ATTR_KEYS]);
4967 if (IS_ERR(connkeys))
4968 return PTR_ERR(connkeys);
4972 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
4974 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4980 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4983 struct net_device *dev = info->user_ptr[1];
4985 if (!rdev->ops->leave_ibss)
4988 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4991 return cfg80211_leave_ibss(rdev, dev, false);
4994 #ifdef CONFIG_NL80211_TESTMODE
4995 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4999 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5004 if (!info->attrs[NL80211_ATTR_TESTDATA])
5008 if (rdev->ops->testmode_cmd) {
5009 rdev->testmode_info = info;
5010 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5011 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5012 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5013 rdev->testmode_info = NULL;
5019 static int nl80211_testmode_dump(struct sk_buff *skb,
5020 struct netlink_callback *cb)
5022 struct cfg80211_registered_device *rdev;
5030 * 0 is a valid index, but not valid for args[0],
5031 * so we need to offset by 1.
5033 phy_idx = cb->args[0] - 1;
5035 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5036 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5040 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
5041 phy_idx = nla_get_u32(
5042 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
5044 struct net_device *netdev;
5046 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
5047 nl80211_fam.attrbuf,
5052 phy_idx = rdev->wiphy_idx;
5053 cfg80211_unlock_rdev(rdev);
5055 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5057 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5061 data = nla_data((void *)cb->args[1]);
5062 data_len = nla_len((void *)cb->args[1]);
5065 mutex_lock(&cfg80211_mutex);
5066 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5068 mutex_unlock(&cfg80211_mutex);
5071 cfg80211_lock_rdev(rdev);
5072 mutex_unlock(&cfg80211_mutex);
5074 if (!rdev->ops->testmode_dump) {
5080 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5081 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5082 NL80211_CMD_TESTMODE);
5083 struct nlattr *tmdata;
5085 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5086 genlmsg_cancel(skb, hdr);
5090 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5092 genlmsg_cancel(skb, hdr);
5095 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5097 nla_nest_end(skb, tmdata);
5099 if (err == -ENOBUFS || err == -ENOENT) {
5100 genlmsg_cancel(skb, hdr);
5103 genlmsg_cancel(skb, hdr);
5107 genlmsg_end(skb, hdr);
5112 cb->args[0] = phy_idx + 1;
5114 cfg80211_unlock_rdev(rdev);
5118 static struct sk_buff *
5119 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5120 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5122 struct sk_buff *skb;
5124 struct nlattr *data;
5126 skb = nlmsg_new(approxlen + 100, gfp);
5130 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5136 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5137 goto nla_put_failure;
5138 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5140 ((void **)skb->cb)[0] = rdev;
5141 ((void **)skb->cb)[1] = hdr;
5142 ((void **)skb->cb)[2] = data;
5151 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5154 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5156 if (WARN_ON(!rdev->testmode_info))
5159 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5160 rdev->testmode_info->snd_pid,
5161 rdev->testmode_info->snd_seq,
5164 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5166 int cfg80211_testmode_reply(struct sk_buff *skb)
5168 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5169 void *hdr = ((void **)skb->cb)[1];
5170 struct nlattr *data = ((void **)skb->cb)[2];
5172 if (WARN_ON(!rdev->testmode_info)) {
5177 nla_nest_end(skb, data);
5178 genlmsg_end(skb, hdr);
5179 return genlmsg_reply(skb, rdev->testmode_info);
5181 EXPORT_SYMBOL(cfg80211_testmode_reply);
5183 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5184 int approxlen, gfp_t gfp)
5186 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5188 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5190 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5192 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5194 void *hdr = ((void **)skb->cb)[1];
5195 struct nlattr *data = ((void **)skb->cb)[2];
5197 nla_nest_end(skb, data);
5198 genlmsg_end(skb, hdr);
5199 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5201 EXPORT_SYMBOL(cfg80211_testmode_event);
5204 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5207 struct net_device *dev = info->user_ptr[1];
5208 struct cfg80211_connect_params connect;
5209 struct wiphy *wiphy;
5210 struct cfg80211_cached_keys *connkeys = NULL;
5213 memset(&connect, 0, sizeof(connect));
5215 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5218 if (!info->attrs[NL80211_ATTR_SSID] ||
5219 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5222 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5224 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5225 if (!nl80211_valid_auth_type(connect.auth_type))
5228 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5230 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5232 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5233 NL80211_MAX_NR_CIPHER_SUITES);
5237 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5238 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5241 wiphy = &rdev->wiphy;
5243 connect.bg_scan_period = -1;
5244 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5245 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5246 connect.bg_scan_period =
5247 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5250 if (info->attrs[NL80211_ATTR_MAC])
5251 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5252 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5253 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5255 if (info->attrs[NL80211_ATTR_IE]) {
5256 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5257 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5260 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5262 ieee80211_get_channel(wiphy,
5263 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5264 if (!connect.channel ||
5265 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5269 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5270 connkeys = nl80211_parse_connkeys(rdev,
5271 info->attrs[NL80211_ATTR_KEYS]);
5272 if (IS_ERR(connkeys))
5273 return PTR_ERR(connkeys);
5276 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5277 connect.flags |= ASSOC_REQ_DISABLE_HT;
5279 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5280 memcpy(&connect.ht_capa_mask,
5281 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5282 sizeof(connect.ht_capa_mask));
5284 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5285 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5287 memcpy(&connect.ht_capa,
5288 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5289 sizeof(connect.ht_capa));
5292 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5298 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5301 struct net_device *dev = info->user_ptr[1];
5304 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5305 reason = WLAN_REASON_DEAUTH_LEAVING;
5307 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5312 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5313 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5316 return cfg80211_disconnect(rdev, dev, reason, true);
5319 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5326 if (!info->attrs[NL80211_ATTR_PID])
5329 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5331 net = get_net_ns_by_pid(pid);
5333 return PTR_ERR(net);
5337 /* check if anything to do */
5338 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5339 err = cfg80211_switch_netns(rdev, net);
5345 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5348 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5349 struct cfg80211_pmksa *pmksa) = NULL;
5350 struct net_device *dev = info->user_ptr[1];
5351 struct cfg80211_pmksa pmksa;
5353 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5355 if (!info->attrs[NL80211_ATTR_MAC])
5358 if (!info->attrs[NL80211_ATTR_PMKID])
5361 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5362 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5368 switch (info->genlhdr->cmd) {
5369 case NL80211_CMD_SET_PMKSA:
5370 rdev_ops = rdev->ops->set_pmksa;
5372 case NL80211_CMD_DEL_PMKSA:
5373 rdev_ops = rdev->ops->del_pmksa;
5383 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5386 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5389 struct net_device *dev = info->user_ptr[1];
5391 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5392 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5395 if (!rdev->ops->flush_pmksa)
5398 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5401 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5404 struct net_device *dev = info->user_ptr[1];
5405 u8 action_code, dialog_token;
5409 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5410 !rdev->ops->tdls_mgmt)
5413 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5414 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5415 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5416 !info->attrs[NL80211_ATTR_IE] ||
5417 !info->attrs[NL80211_ATTR_MAC])
5420 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5421 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5422 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5423 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5425 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5426 dialog_token, status_code,
5427 nla_data(info->attrs[NL80211_ATTR_IE]),
5428 nla_len(info->attrs[NL80211_ATTR_IE]));
5431 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5434 struct net_device *dev = info->user_ptr[1];
5435 enum nl80211_tdls_operation operation;
5438 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5439 !rdev->ops->tdls_oper)
5442 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5443 !info->attrs[NL80211_ATTR_MAC])
5446 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5447 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5449 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5452 static int nl80211_remain_on_channel(struct sk_buff *skb,
5453 struct genl_info *info)
5455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5456 struct net_device *dev = info->user_ptr[1];
5457 struct ieee80211_channel *chan;
5458 struct sk_buff *msg;
5461 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5465 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5466 !info->attrs[NL80211_ATTR_DURATION])
5469 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5472 * We should be on that channel for at least one jiffie,
5473 * and more than 5 seconds seems excessive.
5475 if (!duration || !msecs_to_jiffies(duration) ||
5476 duration > rdev->wiphy.max_remain_on_channel_duration)
5479 if (!rdev->ops->remain_on_channel ||
5480 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5483 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5484 channel_type = nla_get_u32(
5485 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5486 if (channel_type != NL80211_CHAN_NO_HT &&
5487 channel_type != NL80211_CHAN_HT20 &&
5488 channel_type != NL80211_CHAN_HT40PLUS &&
5489 channel_type != NL80211_CHAN_HT40MINUS)
5493 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5494 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5498 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5502 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5503 NL80211_CMD_REMAIN_ON_CHANNEL);
5510 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5511 channel_type, duration, &cookie);
5516 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5517 goto nla_put_failure;
5519 genlmsg_end(msg, hdr);
5521 return genlmsg_reply(msg, info);
5530 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5531 struct genl_info *info)
5533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5534 struct net_device *dev = info->user_ptr[1];
5537 if (!info->attrs[NL80211_ATTR_COOKIE])
5540 if (!rdev->ops->cancel_remain_on_channel)
5543 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5545 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5548 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5549 u8 *rates, u8 rates_len)
5554 for (i = 0; i < rates_len; i++) {
5555 int rate = (rates[i] & 0x7f) * 5;
5557 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5558 struct ieee80211_rate *srate =
5559 &sband->bitrates[ridx];
5560 if (rate == srate->bitrate) {
5565 if (ridx == sband->n_bitrates)
5566 return 0; /* rate not found */
5572 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5573 u8 *rates, u8 rates_len,
5574 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5578 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5580 for (i = 0; i < rates_len; i++) {
5583 ridx = rates[i] / 8;
5584 rbit = BIT(rates[i] % 8);
5586 /* check validity */
5587 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5590 /* check availability */
5591 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5600 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5601 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5602 .len = NL80211_MAX_SUPP_RATES },
5603 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5604 .len = NL80211_MAX_SUPP_HT_RATES },
5607 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5608 struct genl_info *info)
5610 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5612 struct cfg80211_bitrate_mask mask;
5614 struct net_device *dev = info->user_ptr[1];
5615 struct nlattr *tx_rates;
5616 struct ieee80211_supported_band *sband;
5618 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5621 if (!rdev->ops->set_bitrate_mask)
5624 memset(&mask, 0, sizeof(mask));
5625 /* Default to all rates enabled */
5626 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5627 sband = rdev->wiphy.bands[i];
5628 mask.control[i].legacy =
5629 sband ? (1 << sband->n_bitrates) - 1 : 0;
5631 memcpy(mask.control[i].mcs,
5632 sband->ht_cap.mcs.rx_mask,
5633 sizeof(mask.control[i].mcs));
5635 memset(mask.control[i].mcs, 0,
5636 sizeof(mask.control[i].mcs));
5640 * The nested attribute uses enum nl80211_band as the index. This maps
5641 * directly to the enum ieee80211_band values used in cfg80211.
5643 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5644 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5646 enum ieee80211_band band = nla_type(tx_rates);
5647 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5649 sband = rdev->wiphy.bands[band];
5652 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5653 nla_len(tx_rates), nl80211_txattr_policy);
5654 if (tb[NL80211_TXRATE_LEGACY]) {
5655 mask.control[band].legacy = rateset_to_mask(
5657 nla_data(tb[NL80211_TXRATE_LEGACY]),
5658 nla_len(tb[NL80211_TXRATE_LEGACY]));
5660 if (tb[NL80211_TXRATE_MCS]) {
5661 if (!ht_rateset_to_mask(
5663 nla_data(tb[NL80211_TXRATE_MCS]),
5664 nla_len(tb[NL80211_TXRATE_MCS]),
5665 mask.control[band].mcs))
5669 if (mask.control[band].legacy == 0) {
5670 /* don't allow empty legacy rates if HT
5671 * is not even supported. */
5672 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5675 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5676 if (mask.control[band].mcs[i])
5679 /* legacy and mcs rates may not be both empty */
5680 if (i == IEEE80211_HT_MCS_MASK_LEN)
5685 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5688 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5691 struct net_device *dev = info->user_ptr[1];
5692 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5694 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5697 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5698 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5700 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5701 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5702 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5703 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5704 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5705 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5706 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5709 /* not much point in registering if we can't reply */
5710 if (!rdev->ops->mgmt_tx)
5713 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5715 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5716 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5719 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5722 struct net_device *dev = info->user_ptr[1];
5723 struct ieee80211_channel *chan;
5724 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5725 bool channel_type_valid = false;
5730 struct sk_buff *msg = NULL;
5731 unsigned int wait = 0;
5732 bool offchan, no_cck, dont_wait_for_ack;
5734 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
5736 if (!info->attrs[NL80211_ATTR_FRAME] ||
5737 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5740 if (!rdev->ops->mgmt_tx)
5743 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5744 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5745 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5746 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5747 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5748 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5749 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5752 if (info->attrs[NL80211_ATTR_DURATION]) {
5753 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5755 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5758 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5759 channel_type = nla_get_u32(
5760 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5761 if (channel_type != NL80211_CHAN_NO_HT &&
5762 channel_type != NL80211_CHAN_HT20 &&
5763 channel_type != NL80211_CHAN_HT40PLUS &&
5764 channel_type != NL80211_CHAN_HT40MINUS)
5766 channel_type_valid = true;
5769 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5771 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5774 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5776 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5777 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5781 if (!dont_wait_for_ack) {
5782 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5786 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5795 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5796 channel_type_valid, wait,
5797 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5798 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5799 no_cck, dont_wait_for_ack, &cookie);
5804 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5805 goto nla_put_failure;
5807 genlmsg_end(msg, hdr);
5808 return genlmsg_reply(msg, info);
5820 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5823 struct net_device *dev = info->user_ptr[1];
5826 if (!info->attrs[NL80211_ATTR_COOKIE])
5829 if (!rdev->ops->mgmt_tx_cancel_wait)
5832 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5833 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5834 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5835 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5836 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5837 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5840 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5842 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5845 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5847 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5848 struct wireless_dev *wdev;
5849 struct net_device *dev = info->user_ptr[1];
5854 if (!info->attrs[NL80211_ATTR_PS_STATE])
5857 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5859 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5862 wdev = dev->ieee80211_ptr;
5864 if (!rdev->ops->set_power_mgmt)
5867 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5869 if (state == wdev->ps)
5872 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5879 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5881 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5882 enum nl80211_ps_state ps_state;
5883 struct wireless_dev *wdev;
5884 struct net_device *dev = info->user_ptr[1];
5885 struct sk_buff *msg;
5889 wdev = dev->ieee80211_ptr;
5891 if (!rdev->ops->set_power_mgmt)
5894 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5898 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5899 NL80211_CMD_GET_POWER_SAVE);
5906 ps_state = NL80211_PS_ENABLED;
5908 ps_state = NL80211_PS_DISABLED;
5910 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
5911 goto nla_put_failure;
5913 genlmsg_end(msg, hdr);
5914 return genlmsg_reply(msg, info);
5923 static struct nla_policy
5924 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5925 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5926 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5927 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5930 static int nl80211_set_cqm_rssi(struct genl_info *info,
5931 s32 threshold, u32 hysteresis)
5933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5934 struct wireless_dev *wdev;
5935 struct net_device *dev = info->user_ptr[1];
5940 wdev = dev->ieee80211_ptr;
5942 if (!rdev->ops->set_cqm_rssi_config)
5945 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5946 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5949 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5950 threshold, hysteresis);
5953 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5955 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5959 cqm = info->attrs[NL80211_ATTR_CQM];
5965 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5966 nl80211_attr_cqm_policy);
5970 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5971 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5974 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5975 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5976 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5984 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5987 struct net_device *dev = info->user_ptr[1];
5988 struct mesh_config cfg;
5989 struct mesh_setup setup;
5992 /* start with default */
5993 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5994 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5996 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5997 /* and parse parameters if given */
5998 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6003 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6004 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6007 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6008 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6010 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6011 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6012 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6015 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6016 /* parse additional setup parameters if given */
6017 err = nl80211_parse_mesh_setup(info, &setup);
6022 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6025 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6028 struct net_device *dev = info->user_ptr[1];
6030 return cfg80211_leave_mesh(rdev, dev);
6033 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6036 struct sk_buff *msg;
6039 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6046 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6047 NL80211_CMD_GET_WOWLAN);
6049 goto nla_put_failure;
6052 struct nlattr *nl_wowlan;
6054 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6056 goto nla_put_failure;
6058 if ((rdev->wowlan->any &&
6059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6060 (rdev->wowlan->disconnect &&
6061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6062 (rdev->wowlan->magic_pkt &&
6063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6064 (rdev->wowlan->gtk_rekey_failure &&
6065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6066 (rdev->wowlan->eap_identity_req &&
6067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6068 (rdev->wowlan->four_way_handshake &&
6069 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6070 (rdev->wowlan->rfkill_release &&
6071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6072 goto nla_put_failure;
6073 if (rdev->wowlan->n_patterns) {
6074 struct nlattr *nl_pats, *nl_pat;
6077 nl_pats = nla_nest_start(msg,
6078 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6080 goto nla_put_failure;
6082 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6083 nl_pat = nla_nest_start(msg, i + 1);
6085 goto nla_put_failure;
6086 pat_len = rdev->wowlan->patterns[i].pattern_len;
6087 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6088 DIV_ROUND_UP(pat_len, 8),
6089 rdev->wowlan->patterns[i].mask) ||
6090 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6092 rdev->wowlan->patterns[i].pattern))
6093 goto nla_put_failure;
6094 nla_nest_end(msg, nl_pat);
6096 nla_nest_end(msg, nl_pats);
6099 nla_nest_end(msg, nl_wowlan);
6102 genlmsg_end(msg, hdr);
6103 return genlmsg_reply(msg, info);
6110 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6113 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6114 struct cfg80211_wowlan no_triggers = {};
6115 struct cfg80211_wowlan new_triggers = {};
6116 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6118 bool prev_enabled = rdev->wowlan;
6120 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6123 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6126 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6127 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6128 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6129 nl80211_wowlan_policy);
6133 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6134 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6136 new_triggers.any = true;
6139 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6140 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6142 new_triggers.disconnect = true;
6145 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6146 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6148 new_triggers.magic_pkt = true;
6151 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6154 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6155 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6157 new_triggers.gtk_rekey_failure = true;
6160 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6161 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6163 new_triggers.eap_identity_req = true;
6166 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6167 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6169 new_triggers.four_way_handshake = true;
6172 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6173 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6175 new_triggers.rfkill_release = true;
6178 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6181 int rem, pat_len, mask_len;
6182 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6184 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6187 if (n_patterns > wowlan->n_patterns)
6190 new_triggers.patterns = kcalloc(n_patterns,
6191 sizeof(new_triggers.patterns[0]),
6193 if (!new_triggers.patterns)
6196 new_triggers.n_patterns = n_patterns;
6199 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6201 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6202 nla_data(pat), nla_len(pat), NULL);
6204 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6205 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6207 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6208 mask_len = DIV_ROUND_UP(pat_len, 8);
6209 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6212 if (pat_len > wowlan->pattern_max_len ||
6213 pat_len < wowlan->pattern_min_len)
6216 new_triggers.patterns[i].mask =
6217 kmalloc(mask_len + pat_len, GFP_KERNEL);
6218 if (!new_triggers.patterns[i].mask) {
6222 new_triggers.patterns[i].pattern =
6223 new_triggers.patterns[i].mask + mask_len;
6224 memcpy(new_triggers.patterns[i].mask,
6225 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6227 new_triggers.patterns[i].pattern_len = pat_len;
6228 memcpy(new_triggers.patterns[i].pattern,
6229 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6235 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6236 struct cfg80211_wowlan *ntrig;
6237 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6243 cfg80211_rdev_free_wowlan(rdev);
6244 rdev->wowlan = ntrig;
6247 cfg80211_rdev_free_wowlan(rdev);
6248 rdev->wowlan = NULL;
6251 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6252 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6256 for (i = 0; i < new_triggers.n_patterns; i++)
6257 kfree(new_triggers.patterns[i].mask);
6258 kfree(new_triggers.patterns);
6262 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6265 struct net_device *dev = info->user_ptr[1];
6266 struct wireless_dev *wdev = dev->ieee80211_ptr;
6267 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6268 struct cfg80211_gtk_rekey_data rekey_data;
6271 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6274 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6275 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6276 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6277 nl80211_rekey_policy);
6281 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6283 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6285 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6288 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6290 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6292 memcpy(rekey_data.replay_ctr,
6293 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6294 NL80211_REPLAY_CTR_LEN);
6297 if (!wdev->current_bss) {
6302 if (!rdev->ops->set_rekey_data) {
6307 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6313 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6314 struct genl_info *info)
6316 struct net_device *dev = info->user_ptr[1];
6317 struct wireless_dev *wdev = dev->ieee80211_ptr;
6319 if (wdev->iftype != NL80211_IFTYPE_AP &&
6320 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6323 if (wdev->ap_unexpected_nlpid)
6326 wdev->ap_unexpected_nlpid = info->snd_pid;
6330 static int nl80211_probe_client(struct sk_buff *skb,
6331 struct genl_info *info)
6333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6334 struct net_device *dev = info->user_ptr[1];
6335 struct wireless_dev *wdev = dev->ieee80211_ptr;
6336 struct sk_buff *msg;
6342 if (wdev->iftype != NL80211_IFTYPE_AP &&
6343 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6346 if (!info->attrs[NL80211_ATTR_MAC])
6349 if (!rdev->ops->probe_client)
6352 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6356 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6357 NL80211_CMD_PROBE_CLIENT);
6364 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6366 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6370 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6371 goto nla_put_failure;
6373 genlmsg_end(msg, hdr);
6375 return genlmsg_reply(msg, info);
6384 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6388 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6391 if (rdev->ap_beacons_nlpid)
6394 rdev->ap_beacons_nlpid = info->snd_pid;
6399 #define NL80211_FLAG_NEED_WIPHY 0x01
6400 #define NL80211_FLAG_NEED_NETDEV 0x02
6401 #define NL80211_FLAG_NEED_RTNL 0x04
6402 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6403 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6404 NL80211_FLAG_CHECK_NETDEV_UP)
6406 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6407 struct genl_info *info)
6409 struct cfg80211_registered_device *rdev;
6410 struct net_device *dev;
6412 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6417 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6418 rdev = cfg80211_get_dev_from_info(info);
6422 return PTR_ERR(rdev);
6424 info->user_ptr[0] = rdev;
6425 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6426 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6433 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6434 !netif_running(dev)) {
6435 cfg80211_unlock_rdev(rdev);
6441 info->user_ptr[0] = rdev;
6442 info->user_ptr[1] = dev;
6448 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6449 struct genl_info *info)
6451 if (info->user_ptr[0])
6452 cfg80211_unlock_rdev(info->user_ptr[0]);
6453 if (info->user_ptr[1])
6454 dev_put(info->user_ptr[1]);
6455 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6459 static struct genl_ops nl80211_ops[] = {
6461 .cmd = NL80211_CMD_GET_WIPHY,
6462 .doit = nl80211_get_wiphy,
6463 .dumpit = nl80211_dump_wiphy,
6464 .policy = nl80211_policy,
6465 /* can be retrieved by unprivileged users */
6466 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6469 .cmd = NL80211_CMD_SET_WIPHY,
6470 .doit = nl80211_set_wiphy,
6471 .policy = nl80211_policy,
6472 .flags = GENL_ADMIN_PERM,
6473 .internal_flags = NL80211_FLAG_NEED_RTNL,
6476 .cmd = NL80211_CMD_GET_INTERFACE,
6477 .doit = nl80211_get_interface,
6478 .dumpit = nl80211_dump_interface,
6479 .policy = nl80211_policy,
6480 /* can be retrieved by unprivileged users */
6481 .internal_flags = NL80211_FLAG_NEED_NETDEV,
6484 .cmd = NL80211_CMD_SET_INTERFACE,
6485 .doit = nl80211_set_interface,
6486 .policy = nl80211_policy,
6487 .flags = GENL_ADMIN_PERM,
6488 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6489 NL80211_FLAG_NEED_RTNL,
6492 .cmd = NL80211_CMD_NEW_INTERFACE,
6493 .doit = nl80211_new_interface,
6494 .policy = nl80211_policy,
6495 .flags = GENL_ADMIN_PERM,
6496 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6497 NL80211_FLAG_NEED_RTNL,
6500 .cmd = NL80211_CMD_DEL_INTERFACE,
6501 .doit = nl80211_del_interface,
6502 .policy = nl80211_policy,
6503 .flags = GENL_ADMIN_PERM,
6504 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6505 NL80211_FLAG_NEED_RTNL,
6508 .cmd = NL80211_CMD_GET_KEY,
6509 .doit = nl80211_get_key,
6510 .policy = nl80211_policy,
6511 .flags = GENL_ADMIN_PERM,
6512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6513 NL80211_FLAG_NEED_RTNL,
6516 .cmd = NL80211_CMD_SET_KEY,
6517 .doit = nl80211_set_key,
6518 .policy = nl80211_policy,
6519 .flags = GENL_ADMIN_PERM,
6520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6521 NL80211_FLAG_NEED_RTNL,
6524 .cmd = NL80211_CMD_NEW_KEY,
6525 .doit = nl80211_new_key,
6526 .policy = nl80211_policy,
6527 .flags = GENL_ADMIN_PERM,
6528 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6529 NL80211_FLAG_NEED_RTNL,
6532 .cmd = NL80211_CMD_DEL_KEY,
6533 .doit = nl80211_del_key,
6534 .policy = nl80211_policy,
6535 .flags = GENL_ADMIN_PERM,
6536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6537 NL80211_FLAG_NEED_RTNL,
6540 .cmd = NL80211_CMD_SET_BEACON,
6541 .policy = nl80211_policy,
6542 .flags = GENL_ADMIN_PERM,
6543 .doit = nl80211_set_beacon,
6544 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6545 NL80211_FLAG_NEED_RTNL,
6548 .cmd = NL80211_CMD_START_AP,
6549 .policy = nl80211_policy,
6550 .flags = GENL_ADMIN_PERM,
6551 .doit = nl80211_start_ap,
6552 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6553 NL80211_FLAG_NEED_RTNL,
6556 .cmd = NL80211_CMD_STOP_AP,
6557 .policy = nl80211_policy,
6558 .flags = GENL_ADMIN_PERM,
6559 .doit = nl80211_stop_ap,
6560 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6561 NL80211_FLAG_NEED_RTNL,
6564 .cmd = NL80211_CMD_GET_STATION,
6565 .doit = nl80211_get_station,
6566 .dumpit = nl80211_dump_station,
6567 .policy = nl80211_policy,
6568 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6569 NL80211_FLAG_NEED_RTNL,
6572 .cmd = NL80211_CMD_SET_STATION,
6573 .doit = nl80211_set_station,
6574 .policy = nl80211_policy,
6575 .flags = GENL_ADMIN_PERM,
6576 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6577 NL80211_FLAG_NEED_RTNL,
6580 .cmd = NL80211_CMD_NEW_STATION,
6581 .doit = nl80211_new_station,
6582 .policy = nl80211_policy,
6583 .flags = GENL_ADMIN_PERM,
6584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6585 NL80211_FLAG_NEED_RTNL,
6588 .cmd = NL80211_CMD_DEL_STATION,
6589 .doit = nl80211_del_station,
6590 .policy = nl80211_policy,
6591 .flags = GENL_ADMIN_PERM,
6592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6593 NL80211_FLAG_NEED_RTNL,
6596 .cmd = NL80211_CMD_GET_MPATH,
6597 .doit = nl80211_get_mpath,
6598 .dumpit = nl80211_dump_mpath,
6599 .policy = nl80211_policy,
6600 .flags = GENL_ADMIN_PERM,
6601 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6602 NL80211_FLAG_NEED_RTNL,
6605 .cmd = NL80211_CMD_SET_MPATH,
6606 .doit = nl80211_set_mpath,
6607 .policy = nl80211_policy,
6608 .flags = GENL_ADMIN_PERM,
6609 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6610 NL80211_FLAG_NEED_RTNL,
6613 .cmd = NL80211_CMD_NEW_MPATH,
6614 .doit = nl80211_new_mpath,
6615 .policy = nl80211_policy,
6616 .flags = GENL_ADMIN_PERM,
6617 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6618 NL80211_FLAG_NEED_RTNL,
6621 .cmd = NL80211_CMD_DEL_MPATH,
6622 .doit = nl80211_del_mpath,
6623 .policy = nl80211_policy,
6624 .flags = GENL_ADMIN_PERM,
6625 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6626 NL80211_FLAG_NEED_RTNL,
6629 .cmd = NL80211_CMD_SET_BSS,
6630 .doit = nl80211_set_bss,
6631 .policy = nl80211_policy,
6632 .flags = GENL_ADMIN_PERM,
6633 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6634 NL80211_FLAG_NEED_RTNL,
6637 .cmd = NL80211_CMD_GET_REG,
6638 .doit = nl80211_get_reg,
6639 .policy = nl80211_policy,
6640 /* can be retrieved by unprivileged users */
6643 .cmd = NL80211_CMD_SET_REG,
6644 .doit = nl80211_set_reg,
6645 .policy = nl80211_policy,
6646 .flags = GENL_ADMIN_PERM,
6649 .cmd = NL80211_CMD_REQ_SET_REG,
6650 .doit = nl80211_req_set_reg,
6651 .policy = nl80211_policy,
6652 .flags = GENL_ADMIN_PERM,
6655 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6656 .doit = nl80211_get_mesh_config,
6657 .policy = nl80211_policy,
6658 /* can be retrieved by unprivileged users */
6659 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6660 NL80211_FLAG_NEED_RTNL,
6663 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6664 .doit = nl80211_update_mesh_config,
6665 .policy = nl80211_policy,
6666 .flags = GENL_ADMIN_PERM,
6667 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6668 NL80211_FLAG_NEED_RTNL,
6671 .cmd = NL80211_CMD_TRIGGER_SCAN,
6672 .doit = nl80211_trigger_scan,
6673 .policy = nl80211_policy,
6674 .flags = GENL_ADMIN_PERM,
6675 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6676 NL80211_FLAG_NEED_RTNL,
6679 .cmd = NL80211_CMD_GET_SCAN,
6680 .policy = nl80211_policy,
6681 .dumpit = nl80211_dump_scan,
6684 .cmd = NL80211_CMD_START_SCHED_SCAN,
6685 .doit = nl80211_start_sched_scan,
6686 .policy = nl80211_policy,
6687 .flags = GENL_ADMIN_PERM,
6688 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6689 NL80211_FLAG_NEED_RTNL,
6692 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6693 .doit = nl80211_stop_sched_scan,
6694 .policy = nl80211_policy,
6695 .flags = GENL_ADMIN_PERM,
6696 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6697 NL80211_FLAG_NEED_RTNL,
6700 .cmd = NL80211_CMD_AUTHENTICATE,
6701 .doit = nl80211_authenticate,
6702 .policy = nl80211_policy,
6703 .flags = GENL_ADMIN_PERM,
6704 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6705 NL80211_FLAG_NEED_RTNL,
6708 .cmd = NL80211_CMD_ASSOCIATE,
6709 .doit = nl80211_associate,
6710 .policy = nl80211_policy,
6711 .flags = GENL_ADMIN_PERM,
6712 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6713 NL80211_FLAG_NEED_RTNL,
6716 .cmd = NL80211_CMD_DEAUTHENTICATE,
6717 .doit = nl80211_deauthenticate,
6718 .policy = nl80211_policy,
6719 .flags = GENL_ADMIN_PERM,
6720 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6721 NL80211_FLAG_NEED_RTNL,
6724 .cmd = NL80211_CMD_DISASSOCIATE,
6725 .doit = nl80211_disassociate,
6726 .policy = nl80211_policy,
6727 .flags = GENL_ADMIN_PERM,
6728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6729 NL80211_FLAG_NEED_RTNL,
6732 .cmd = NL80211_CMD_JOIN_IBSS,
6733 .doit = nl80211_join_ibss,
6734 .policy = nl80211_policy,
6735 .flags = GENL_ADMIN_PERM,
6736 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6737 NL80211_FLAG_NEED_RTNL,
6740 .cmd = NL80211_CMD_LEAVE_IBSS,
6741 .doit = nl80211_leave_ibss,
6742 .policy = nl80211_policy,
6743 .flags = GENL_ADMIN_PERM,
6744 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6745 NL80211_FLAG_NEED_RTNL,
6747 #ifdef CONFIG_NL80211_TESTMODE
6749 .cmd = NL80211_CMD_TESTMODE,
6750 .doit = nl80211_testmode_do,
6751 .dumpit = nl80211_testmode_dump,
6752 .policy = nl80211_policy,
6753 .flags = GENL_ADMIN_PERM,
6754 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6755 NL80211_FLAG_NEED_RTNL,
6759 .cmd = NL80211_CMD_CONNECT,
6760 .doit = nl80211_connect,
6761 .policy = nl80211_policy,
6762 .flags = GENL_ADMIN_PERM,
6763 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6764 NL80211_FLAG_NEED_RTNL,
6767 .cmd = NL80211_CMD_DISCONNECT,
6768 .doit = nl80211_disconnect,
6769 .policy = nl80211_policy,
6770 .flags = GENL_ADMIN_PERM,
6771 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6772 NL80211_FLAG_NEED_RTNL,
6775 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6776 .doit = nl80211_wiphy_netns,
6777 .policy = nl80211_policy,
6778 .flags = GENL_ADMIN_PERM,
6779 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6780 NL80211_FLAG_NEED_RTNL,
6783 .cmd = NL80211_CMD_GET_SURVEY,
6784 .policy = nl80211_policy,
6785 .dumpit = nl80211_dump_survey,
6788 .cmd = NL80211_CMD_SET_PMKSA,
6789 .doit = nl80211_setdel_pmksa,
6790 .policy = nl80211_policy,
6791 .flags = GENL_ADMIN_PERM,
6792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6793 NL80211_FLAG_NEED_RTNL,
6796 .cmd = NL80211_CMD_DEL_PMKSA,
6797 .doit = nl80211_setdel_pmksa,
6798 .policy = nl80211_policy,
6799 .flags = GENL_ADMIN_PERM,
6800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6801 NL80211_FLAG_NEED_RTNL,
6804 .cmd = NL80211_CMD_FLUSH_PMKSA,
6805 .doit = nl80211_flush_pmksa,
6806 .policy = nl80211_policy,
6807 .flags = GENL_ADMIN_PERM,
6808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6809 NL80211_FLAG_NEED_RTNL,
6812 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6813 .doit = nl80211_remain_on_channel,
6814 .policy = nl80211_policy,
6815 .flags = GENL_ADMIN_PERM,
6816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6817 NL80211_FLAG_NEED_RTNL,
6820 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6821 .doit = nl80211_cancel_remain_on_channel,
6822 .policy = nl80211_policy,
6823 .flags = GENL_ADMIN_PERM,
6824 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6825 NL80211_FLAG_NEED_RTNL,
6828 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6829 .doit = nl80211_set_tx_bitrate_mask,
6830 .policy = nl80211_policy,
6831 .flags = GENL_ADMIN_PERM,
6832 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6833 NL80211_FLAG_NEED_RTNL,
6836 .cmd = NL80211_CMD_REGISTER_FRAME,
6837 .doit = nl80211_register_mgmt,
6838 .policy = nl80211_policy,
6839 .flags = GENL_ADMIN_PERM,
6840 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6841 NL80211_FLAG_NEED_RTNL,
6844 .cmd = NL80211_CMD_FRAME,
6845 .doit = nl80211_tx_mgmt,
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_FRAME_WAIT_CANCEL,
6853 .doit = nl80211_tx_mgmt_cancel_wait,
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_SET_POWER_SAVE,
6861 .doit = nl80211_set_power_save,
6862 .policy = nl80211_policy,
6863 .flags = GENL_ADMIN_PERM,
6864 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6865 NL80211_FLAG_NEED_RTNL,
6868 .cmd = NL80211_CMD_GET_POWER_SAVE,
6869 .doit = nl80211_get_power_save,
6870 .policy = nl80211_policy,
6871 /* can be retrieved by unprivileged users */
6872 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6873 NL80211_FLAG_NEED_RTNL,
6876 .cmd = NL80211_CMD_SET_CQM,
6877 .doit = nl80211_set_cqm,
6878 .policy = nl80211_policy,
6879 .flags = GENL_ADMIN_PERM,
6880 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6881 NL80211_FLAG_NEED_RTNL,
6884 .cmd = NL80211_CMD_SET_CHANNEL,
6885 .doit = nl80211_set_channel,
6886 .policy = nl80211_policy,
6887 .flags = GENL_ADMIN_PERM,
6888 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6889 NL80211_FLAG_NEED_RTNL,
6892 .cmd = NL80211_CMD_SET_WDS_PEER,
6893 .doit = nl80211_set_wds_peer,
6894 .policy = nl80211_policy,
6895 .flags = GENL_ADMIN_PERM,
6896 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6897 NL80211_FLAG_NEED_RTNL,
6900 .cmd = NL80211_CMD_JOIN_MESH,
6901 .doit = nl80211_join_mesh,
6902 .policy = nl80211_policy,
6903 .flags = GENL_ADMIN_PERM,
6904 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6905 NL80211_FLAG_NEED_RTNL,
6908 .cmd = NL80211_CMD_LEAVE_MESH,
6909 .doit = nl80211_leave_mesh,
6910 .policy = nl80211_policy,
6911 .flags = GENL_ADMIN_PERM,
6912 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6913 NL80211_FLAG_NEED_RTNL,
6916 .cmd = NL80211_CMD_GET_WOWLAN,
6917 .doit = nl80211_get_wowlan,
6918 .policy = nl80211_policy,
6919 /* can be retrieved by unprivileged users */
6920 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6921 NL80211_FLAG_NEED_RTNL,
6924 .cmd = NL80211_CMD_SET_WOWLAN,
6925 .doit = nl80211_set_wowlan,
6926 .policy = nl80211_policy,
6927 .flags = GENL_ADMIN_PERM,
6928 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6929 NL80211_FLAG_NEED_RTNL,
6932 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6933 .doit = nl80211_set_rekey_data,
6934 .policy = nl80211_policy,
6935 .flags = GENL_ADMIN_PERM,
6936 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6937 NL80211_FLAG_NEED_RTNL,
6940 .cmd = NL80211_CMD_TDLS_MGMT,
6941 .doit = nl80211_tdls_mgmt,
6942 .policy = nl80211_policy,
6943 .flags = GENL_ADMIN_PERM,
6944 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6945 NL80211_FLAG_NEED_RTNL,
6948 .cmd = NL80211_CMD_TDLS_OPER,
6949 .doit = nl80211_tdls_oper,
6950 .policy = nl80211_policy,
6951 .flags = GENL_ADMIN_PERM,
6952 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6953 NL80211_FLAG_NEED_RTNL,
6956 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6957 .doit = nl80211_register_unexpected_frame,
6958 .policy = nl80211_policy,
6959 .flags = GENL_ADMIN_PERM,
6960 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6961 NL80211_FLAG_NEED_RTNL,
6964 .cmd = NL80211_CMD_PROBE_CLIENT,
6965 .doit = nl80211_probe_client,
6966 .policy = nl80211_policy,
6967 .flags = GENL_ADMIN_PERM,
6968 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6969 NL80211_FLAG_NEED_RTNL,
6972 .cmd = NL80211_CMD_REGISTER_BEACONS,
6973 .doit = nl80211_register_beacons,
6974 .policy = nl80211_policy,
6975 .flags = GENL_ADMIN_PERM,
6976 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6977 NL80211_FLAG_NEED_RTNL,
6980 .cmd = NL80211_CMD_SET_NOACK_MAP,
6981 .doit = nl80211_set_noack_map,
6982 .policy = nl80211_policy,
6983 .flags = GENL_ADMIN_PERM,
6984 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6985 NL80211_FLAG_NEED_RTNL,
6990 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6994 /* multicast groups */
6995 static struct genl_multicast_group nl80211_config_mcgrp = {
6998 static struct genl_multicast_group nl80211_scan_mcgrp = {
7001 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7002 .name = "regulatory",
7005 /* notification functions */
7007 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7009 struct sk_buff *msg;
7011 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7015 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7020 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7021 nl80211_config_mcgrp.id, GFP_KERNEL);
7024 static int nl80211_add_scan_req(struct sk_buff *msg,
7025 struct cfg80211_registered_device *rdev)
7027 struct cfg80211_scan_request *req = rdev->scan_req;
7028 struct nlattr *nest;
7031 ASSERT_RDEV_LOCK(rdev);
7036 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7038 goto nla_put_failure;
7039 for (i = 0; i < req->n_ssids; i++) {
7040 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7041 goto nla_put_failure;
7043 nla_nest_end(msg, nest);
7045 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7047 goto nla_put_failure;
7048 for (i = 0; i < req->n_channels; i++) {
7049 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7050 goto nla_put_failure;
7052 nla_nest_end(msg, nest);
7055 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7056 goto nla_put_failure;
7063 static int nl80211_send_scan_msg(struct sk_buff *msg,
7064 struct cfg80211_registered_device *rdev,
7065 struct net_device *netdev,
7066 u32 pid, u32 seq, int flags,
7071 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7075 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7076 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7077 goto nla_put_failure;
7079 /* ignore errors and send incomplete event anyway */
7080 nl80211_add_scan_req(msg, rdev);
7082 return genlmsg_end(msg, hdr);
7085 genlmsg_cancel(msg, hdr);
7090 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7091 struct cfg80211_registered_device *rdev,
7092 struct net_device *netdev,
7093 u32 pid, u32 seq, int flags, u32 cmd)
7097 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7101 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7102 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7103 goto nla_put_failure;
7105 return genlmsg_end(msg, hdr);
7108 genlmsg_cancel(msg, hdr);
7112 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7113 struct net_device *netdev)
7115 struct sk_buff *msg;
7117 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7121 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7122 NL80211_CMD_TRIGGER_SCAN) < 0) {
7127 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7128 nl80211_scan_mcgrp.id, GFP_KERNEL);
7131 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7132 struct net_device *netdev)
7134 struct sk_buff *msg;
7136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7140 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7141 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7146 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7147 nl80211_scan_mcgrp.id, GFP_KERNEL);
7150 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7151 struct net_device *netdev)
7153 struct sk_buff *msg;
7155 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7159 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7160 NL80211_CMD_SCAN_ABORTED) < 0) {
7165 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7166 nl80211_scan_mcgrp.id, GFP_KERNEL);
7169 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7170 struct net_device *netdev)
7172 struct sk_buff *msg;
7174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7178 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7179 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7184 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7185 nl80211_scan_mcgrp.id, GFP_KERNEL);
7188 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7189 struct net_device *netdev, u32 cmd)
7191 struct sk_buff *msg;
7193 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7197 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7202 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7203 nl80211_scan_mcgrp.id, GFP_KERNEL);
7207 * This can happen on global regulatory changes or device specific settings
7208 * based on custom world regulatory domains.
7210 void nl80211_send_reg_change_event(struct regulatory_request *request)
7212 struct sk_buff *msg;
7215 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7219 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7225 /* Userspace can always count this one always being set */
7226 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7227 goto nla_put_failure;
7229 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7230 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7231 NL80211_REGDOM_TYPE_WORLD))
7232 goto nla_put_failure;
7233 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7234 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7235 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7236 goto nla_put_failure;
7237 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7238 request->intersect) {
7239 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7240 NL80211_REGDOM_TYPE_INTERSECTION))
7241 goto nla_put_failure;
7243 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7244 NL80211_REGDOM_TYPE_COUNTRY) ||
7245 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7247 goto nla_put_failure;
7250 if (wiphy_idx_valid(request->wiphy_idx) &&
7251 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7252 goto nla_put_failure;
7254 genlmsg_end(msg, hdr);
7257 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7264 genlmsg_cancel(msg, hdr);
7268 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7269 struct net_device *netdev,
7270 const u8 *buf, size_t len,
7271 enum nl80211_commands cmd, gfp_t gfp)
7273 struct sk_buff *msg;
7276 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7280 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7286 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7287 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7288 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7289 goto nla_put_failure;
7291 genlmsg_end(msg, hdr);
7293 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7294 nl80211_mlme_mcgrp.id, gfp);
7298 genlmsg_cancel(msg, hdr);
7302 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7303 struct net_device *netdev, const u8 *buf,
7304 size_t len, gfp_t gfp)
7306 nl80211_send_mlme_event(rdev, netdev, buf, len,
7307 NL80211_CMD_AUTHENTICATE, gfp);
7310 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7311 struct net_device *netdev, const u8 *buf,
7312 size_t len, gfp_t gfp)
7314 nl80211_send_mlme_event(rdev, netdev, buf, len,
7315 NL80211_CMD_ASSOCIATE, gfp);
7318 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7319 struct net_device *netdev, const u8 *buf,
7320 size_t len, gfp_t gfp)
7322 nl80211_send_mlme_event(rdev, netdev, buf, len,
7323 NL80211_CMD_DEAUTHENTICATE, gfp);
7326 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7327 struct net_device *netdev, const u8 *buf,
7328 size_t len, gfp_t gfp)
7330 nl80211_send_mlme_event(rdev, netdev, buf, len,
7331 NL80211_CMD_DISASSOCIATE, gfp);
7334 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7335 struct net_device *netdev, const u8 *buf,
7336 size_t len, gfp_t gfp)
7338 nl80211_send_mlme_event(rdev, netdev, buf, len,
7339 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7342 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7343 struct net_device *netdev, const u8 *buf,
7344 size_t len, gfp_t gfp)
7346 nl80211_send_mlme_event(rdev, netdev, buf, len,
7347 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7350 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7351 struct net_device *netdev, int cmd,
7352 const u8 *addr, gfp_t gfp)
7354 struct sk_buff *msg;
7357 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7361 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7367 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7368 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7369 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7370 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7371 goto nla_put_failure;
7373 genlmsg_end(msg, hdr);
7375 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7376 nl80211_mlme_mcgrp.id, gfp);
7380 genlmsg_cancel(msg, hdr);
7384 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7385 struct net_device *netdev, const u8 *addr,
7388 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7392 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7393 struct net_device *netdev, const u8 *addr,
7396 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7400 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7401 struct net_device *netdev, const u8 *bssid,
7402 const u8 *req_ie, size_t req_ie_len,
7403 const u8 *resp_ie, size_t resp_ie_len,
7404 u16 status, gfp_t gfp)
7406 struct sk_buff *msg;
7409 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7413 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7419 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7420 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7421 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7422 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7424 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7426 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7427 goto nla_put_failure;
7429 genlmsg_end(msg, hdr);
7431 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7432 nl80211_mlme_mcgrp.id, gfp);
7436 genlmsg_cancel(msg, hdr);
7441 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7442 struct net_device *netdev, const u8 *bssid,
7443 const u8 *req_ie, size_t req_ie_len,
7444 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7446 struct sk_buff *msg;
7449 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7453 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7459 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7460 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7461 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7463 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7465 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7466 goto nla_put_failure;
7468 genlmsg_end(msg, hdr);
7470 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7471 nl80211_mlme_mcgrp.id, gfp);
7475 genlmsg_cancel(msg, hdr);
7480 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7481 struct net_device *netdev, u16 reason,
7482 const u8 *ie, size_t ie_len, bool from_ap)
7484 struct sk_buff *msg;
7487 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7491 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7497 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7498 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7499 (from_ap && reason &&
7500 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7502 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7503 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7504 goto nla_put_failure;
7506 genlmsg_end(msg, hdr);
7508 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7509 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7513 genlmsg_cancel(msg, hdr);
7518 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7519 struct net_device *netdev, const u8 *bssid,
7522 struct sk_buff *msg;
7525 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7529 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7535 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7536 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7537 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7538 goto nla_put_failure;
7540 genlmsg_end(msg, hdr);
7542 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7543 nl80211_mlme_mcgrp.id, gfp);
7547 genlmsg_cancel(msg, hdr);
7551 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7552 struct net_device *netdev,
7553 const u8 *macaddr, const u8* ie, u8 ie_len,
7556 struct sk_buff *msg;
7559 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7563 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7570 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7571 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7573 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7574 goto nla_put_failure;
7576 genlmsg_end(msg, hdr);
7578 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7579 nl80211_mlme_mcgrp.id, gfp);
7583 genlmsg_cancel(msg, hdr);
7587 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7588 struct net_device *netdev, const u8 *addr,
7589 enum nl80211_key_type key_type, int key_id,
7590 const u8 *tsc, gfp_t gfp)
7592 struct sk_buff *msg;
7595 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7599 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7605 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7606 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7607 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7608 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7610 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7611 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7612 goto nla_put_failure;
7614 genlmsg_end(msg, hdr);
7616 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7617 nl80211_mlme_mcgrp.id, gfp);
7621 genlmsg_cancel(msg, hdr);
7625 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7626 struct ieee80211_channel *channel_before,
7627 struct ieee80211_channel *channel_after)
7629 struct sk_buff *msg;
7631 struct nlattr *nl_freq;
7633 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7637 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7644 * Since we are applying the beacon hint to a wiphy we know its
7645 * wiphy_idx is valid
7647 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7648 goto nla_put_failure;
7651 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7653 goto nla_put_failure;
7654 if (nl80211_msg_put_channel(msg, channel_before))
7655 goto nla_put_failure;
7656 nla_nest_end(msg, nl_freq);
7659 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7661 goto nla_put_failure;
7662 if (nl80211_msg_put_channel(msg, channel_after))
7663 goto nla_put_failure;
7664 nla_nest_end(msg, nl_freq);
7666 genlmsg_end(msg, hdr);
7669 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7676 genlmsg_cancel(msg, hdr);
7680 static void nl80211_send_remain_on_chan_event(
7681 int cmd, struct cfg80211_registered_device *rdev,
7682 struct net_device *netdev, u64 cookie,
7683 struct ieee80211_channel *chan,
7684 enum nl80211_channel_type channel_type,
7685 unsigned int duration, gfp_t gfp)
7687 struct sk_buff *msg;
7690 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7694 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7700 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7701 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7702 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
7703 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
7704 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7705 goto nla_put_failure;
7707 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
7708 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
7709 goto nla_put_failure;
7711 genlmsg_end(msg, hdr);
7713 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7714 nl80211_mlme_mcgrp.id, gfp);
7718 genlmsg_cancel(msg, hdr);
7722 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7723 struct net_device *netdev, u64 cookie,
7724 struct ieee80211_channel *chan,
7725 enum nl80211_channel_type channel_type,
7726 unsigned int duration, gfp_t gfp)
7728 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7729 rdev, netdev, cookie, chan,
7730 channel_type, duration, gfp);
7733 void nl80211_send_remain_on_channel_cancel(
7734 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7735 u64 cookie, struct ieee80211_channel *chan,
7736 enum nl80211_channel_type channel_type, gfp_t gfp)
7738 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7739 rdev, netdev, cookie, chan,
7740 channel_type, 0, gfp);
7743 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7744 struct net_device *dev, const u8 *mac_addr,
7745 struct station_info *sinfo, gfp_t gfp)
7747 struct sk_buff *msg;
7749 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7753 if (nl80211_send_station(msg, 0, 0, 0,
7754 rdev, dev, mac_addr, sinfo) < 0) {
7759 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7760 nl80211_mlme_mcgrp.id, gfp);
7763 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7764 struct net_device *dev, const u8 *mac_addr,
7767 struct sk_buff *msg;
7770 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7774 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7780 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
7781 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
7782 goto nla_put_failure;
7784 genlmsg_end(msg, hdr);
7786 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7787 nl80211_mlme_mcgrp.id, gfp);
7791 genlmsg_cancel(msg, hdr);
7795 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7796 const u8 *addr, gfp_t gfp)
7798 struct wireless_dev *wdev = dev->ieee80211_ptr;
7799 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7800 struct sk_buff *msg;
7803 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7808 msg = nlmsg_new(100, gfp);
7812 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7818 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7819 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
7820 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7821 goto nla_put_failure;
7823 err = genlmsg_end(msg, hdr);
7829 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7833 genlmsg_cancel(msg, hdr);
7838 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7840 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7844 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7845 const u8 *addr, gfp_t gfp)
7847 return __nl80211_unexpected_frame(dev,
7848 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7852 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7853 struct net_device *netdev, u32 nlpid,
7854 int freq, int sig_dbm,
7855 const u8 *buf, size_t len, gfp_t gfp)
7857 struct sk_buff *msg;
7860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7864 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7870 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7871 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7872 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
7874 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
7875 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7876 goto nla_put_failure;
7878 genlmsg_end(msg, hdr);
7880 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7883 genlmsg_cancel(msg, hdr);
7888 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7889 struct net_device *netdev, u64 cookie,
7890 const u8 *buf, size_t len, bool ack,
7893 struct sk_buff *msg;
7896 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7900 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7906 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7907 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7908 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
7909 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
7910 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
7911 goto nla_put_failure;
7913 genlmsg_end(msg, hdr);
7915 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7919 genlmsg_cancel(msg, hdr);
7924 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7925 struct net_device *netdev,
7926 enum nl80211_cqm_rssi_threshold_event rssi_event,
7929 struct sk_buff *msg;
7930 struct nlattr *pinfoattr;
7933 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7937 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7943 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7944 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7945 goto nla_put_failure;
7947 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7949 goto nla_put_failure;
7951 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7953 goto nla_put_failure;
7955 nla_nest_end(msg, pinfoattr);
7957 genlmsg_end(msg, hdr);
7959 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7960 nl80211_mlme_mcgrp.id, gfp);
7964 genlmsg_cancel(msg, hdr);
7968 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7969 struct net_device *netdev, const u8 *bssid,
7970 const u8 *replay_ctr, gfp_t gfp)
7972 struct sk_buff *msg;
7973 struct nlattr *rekey_attr;
7976 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7980 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7986 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7987 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7988 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7989 goto nla_put_failure;
7991 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7993 goto nla_put_failure;
7995 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7996 NL80211_REPLAY_CTR_LEN, replay_ctr))
7997 goto nla_put_failure;
7999 nla_nest_end(msg, rekey_attr);
8001 genlmsg_end(msg, hdr);
8003 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8004 nl80211_mlme_mcgrp.id, gfp);
8008 genlmsg_cancel(msg, hdr);
8012 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8013 struct net_device *netdev, int index,
8014 const u8 *bssid, bool preauth, gfp_t gfp)
8016 struct sk_buff *msg;
8017 struct nlattr *attr;
8020 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8024 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8030 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8031 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8032 goto nla_put_failure;
8034 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8036 goto nla_put_failure;
8038 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8039 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8041 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8042 goto nla_put_failure;
8044 nla_nest_end(msg, attr);
8046 genlmsg_end(msg, hdr);
8048 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8049 nl80211_mlme_mcgrp.id, gfp);
8053 genlmsg_cancel(msg, hdr);
8057 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8058 struct net_device *netdev, int freq,
8059 enum nl80211_channel_type type, gfp_t gfp)
8061 struct sk_buff *msg;
8064 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8068 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8074 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8075 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8076 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8077 goto nla_put_failure;
8079 genlmsg_end(msg, hdr);
8081 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8082 nl80211_mlme_mcgrp.id, gfp);
8086 genlmsg_cancel(msg, hdr);
8091 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8092 struct net_device *netdev, const u8 *peer,
8093 u32 num_packets, gfp_t gfp)
8095 struct sk_buff *msg;
8096 struct nlattr *pinfoattr;
8099 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8103 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
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(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8112 goto nla_put_failure;
8114 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8116 goto nla_put_failure;
8118 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8119 goto nla_put_failure;
8121 nla_nest_end(msg, pinfoattr);
8123 genlmsg_end(msg, hdr);
8125 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8126 nl80211_mlme_mcgrp.id, gfp);
8130 genlmsg_cancel(msg, hdr);
8134 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8135 u64 cookie, bool acked, gfp_t gfp)
8137 struct wireless_dev *wdev = dev->ieee80211_ptr;
8138 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8139 struct sk_buff *msg;
8143 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8147 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8153 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8154 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8155 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8156 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8157 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8158 goto nla_put_failure;
8160 err = genlmsg_end(msg, hdr);
8166 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8167 nl80211_mlme_mcgrp.id, gfp);
8171 genlmsg_cancel(msg, hdr);
8174 EXPORT_SYMBOL(cfg80211_probe_status);
8176 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8177 const u8 *frame, size_t len,
8178 int freq, int sig_dbm, gfp_t gfp)
8180 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8181 struct sk_buff *msg;
8183 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8188 msg = nlmsg_new(len + 100, gfp);
8192 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8198 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8200 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8202 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8203 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8204 goto nla_put_failure;
8206 genlmsg_end(msg, hdr);
8208 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8212 genlmsg_cancel(msg, hdr);
8215 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8217 static int nl80211_netlink_notify(struct notifier_block * nb,
8218 unsigned long state,
8221 struct netlink_notify *notify = _notify;
8222 struct cfg80211_registered_device *rdev;
8223 struct wireless_dev *wdev;
8225 if (state != NETLINK_URELEASE)
8230 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8231 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
8232 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8233 if (rdev->ap_beacons_nlpid == notify->pid)
8234 rdev->ap_beacons_nlpid = 0;
8242 static struct notifier_block nl80211_netlink_notifier = {
8243 .notifier_call = nl80211_netlink_notify,
8246 /* initialisation/exit functions */
8248 int nl80211_init(void)
8252 err = genl_register_family_with_ops(&nl80211_fam,
8253 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8257 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8261 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8265 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8269 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8273 #ifdef CONFIG_NL80211_TESTMODE
8274 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8279 err = netlink_register_notifier(&nl80211_netlink_notifier);
8285 genl_unregister_family(&nl80211_fam);
8289 void nl80211_exit(void)
8291 netlink_unregister_notifier(&nl80211_netlink_notifier);
8292 genl_unregister_family(&nl80211_fam);