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_info_ifindex(struct genl_info *info,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
54 struct nlattr **attrs = info->attrs;
57 if (!attrs[NL80211_ATTR_IFINDEX])
60 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
61 *dev = dev_get_by_index(genl_info_net(info), ifindex);
65 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
68 return PTR_ERR(*rdev);
74 /* policy for the attributes */
75 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
76 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
77 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
79 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
80 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
81 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
82 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
84 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
85 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
86 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
88 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
90 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
92 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
93 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
95 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
96 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
97 .len = WLAN_MAX_KEY_LEN },
98 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
99 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
100 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
101 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
102 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
104 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
105 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
106 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
107 .len = IEEE80211_MAX_DATA_LEN },
108 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
109 .len = IEEE80211_MAX_DATA_LEN },
110 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
111 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
112 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
113 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
114 .len = NL80211_MAX_SUPP_RATES },
115 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
116 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
117 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
118 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
119 .len = IEEE80211_MAX_MESH_ID_LEN },
120 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
122 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
123 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
125 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
127 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
128 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
129 .len = NL80211_MAX_SUPP_RATES },
130 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
132 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
133 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
135 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
136 .len = NL80211_HT_CAPABILITY_LEN },
138 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
139 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
140 .len = IEEE80211_MAX_DATA_LEN },
141 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
142 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
144 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
145 .len = IEEE80211_MAX_SSID_LEN },
146 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
147 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
148 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
149 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
150 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
151 [NL80211_ATTR_STA_FLAGS2] = {
152 .len = sizeof(struct nl80211_sta_flag_update),
154 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
155 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
156 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
157 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
158 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
159 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
160 [NL80211_ATTR_PID] = { .type = NLA_U32 },
161 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
162 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
163 .len = WLAN_PMKID_LEN },
164 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
165 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
166 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
167 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
168 .len = IEEE80211_MAX_DATA_LEN },
169 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
170 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
171 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
172 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
173 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
174 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
175 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
176 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
177 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
178 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
179 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
180 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
181 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
182 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
183 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
184 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
185 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
186 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
187 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
188 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
190 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
191 .len = IEEE80211_MAX_DATA_LEN },
192 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
193 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
194 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
195 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
197 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
198 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
199 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
202 /* policy for the key attributes */
203 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
204 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
205 [NL80211_KEY_IDX] = { .type = NLA_U8 },
206 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
207 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
208 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
209 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
210 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
211 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
214 /* policy for the key default flags */
215 static const struct nla_policy
216 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
217 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
218 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
221 /* policy for WoWLAN attributes */
222 static const struct nla_policy
223 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
224 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
225 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
226 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
227 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
228 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
229 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
230 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
231 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
234 /* policy for GTK rekey offload attributes */
235 static const struct nla_policy
236 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
237 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
238 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
239 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
242 static const struct nla_policy
243 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
244 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
245 .len = IEEE80211_MAX_SSID_LEN },
248 /* ifidx get helper */
249 static int nl80211_get_ifidx(struct netlink_callback *cb)
253 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
254 nl80211_fam.attrbuf, nl80211_fam.maxattr,
259 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
262 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
268 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
269 struct netlink_callback *cb,
270 struct cfg80211_registered_device **rdev,
271 struct net_device **dev)
273 int ifidx = cb->args[0];
277 ifidx = nl80211_get_ifidx(cb);
285 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
291 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
293 err = PTR_ERR(*rdev);
303 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
305 cfg80211_unlock_rdev(rdev);
310 static bool is_valid_ie_attr(const struct nlattr *attr)
318 pos = nla_data(attr);
339 /* message building helper */
340 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
343 /* since there is no private header just add the generic one */
344 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
347 static int nl80211_msg_put_channel(struct sk_buff *msg,
348 struct ieee80211_channel *chan)
350 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
353 if (chan->flags & IEEE80211_CHAN_DISABLED)
354 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
355 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
356 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
357 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
358 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
359 if (chan->flags & IEEE80211_CHAN_RADAR)
360 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
362 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
363 DBM_TO_MBM(chan->max_power));
371 /* netlink command implementations */
378 bool def_uni, def_multi;
381 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
383 struct nlattr *tb[NL80211_KEY_MAX + 1];
384 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
389 k->def = !!tb[NL80211_KEY_DEFAULT];
390 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
399 if (tb[NL80211_KEY_IDX])
400 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
402 if (tb[NL80211_KEY_DATA]) {
403 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
404 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
407 if (tb[NL80211_KEY_SEQ]) {
408 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
409 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
412 if (tb[NL80211_KEY_CIPHER])
413 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
415 if (tb[NL80211_KEY_TYPE]) {
416 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
417 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
421 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
422 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
423 int err = nla_parse_nested(kdt,
424 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
425 tb[NL80211_KEY_DEFAULT_TYPES],
426 nl80211_key_default_policy);
430 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
431 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
437 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
439 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
440 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
441 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
444 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
445 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
446 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
449 if (info->attrs[NL80211_ATTR_KEY_IDX])
450 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
452 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
453 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
455 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
456 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
465 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
466 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
467 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
471 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
472 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
473 int err = nla_parse_nested(
474 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
475 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
476 nl80211_key_default_policy);
480 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
481 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
487 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
491 memset(k, 0, sizeof(*k));
495 if (info->attrs[NL80211_ATTR_KEY])
496 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
498 err = nl80211_parse_key_old(info, k);
503 if (k->def && k->defmgmt)
507 if (k->def_uni || !k->def_multi)
513 if (k->idx < 4 || k->idx > 5)
516 if (k->idx < 0 || k->idx > 3)
519 if (k->idx < 0 || k->idx > 5)
527 static struct cfg80211_cached_keys *
528 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
531 struct key_parse parse;
533 struct cfg80211_cached_keys *result;
534 int rem, err, def = 0;
536 result = kzalloc(sizeof(*result), GFP_KERNEL);
538 return ERR_PTR(-ENOMEM);
541 result->defmgmt = -1;
543 nla_for_each_nested(key, keys, rem) {
544 memset(&parse, 0, sizeof(parse));
547 err = nl80211_parse_key_new(key, &parse);
553 if (parse.idx < 0 || parse.idx > 4)
559 result->def = parse.idx;
560 if (!parse.def_uni || !parse.def_multi)
562 } else if (parse.defmgmt)
564 err = cfg80211_validate_key_settings(rdev, &parse.p,
565 parse.idx, false, NULL);
568 result->params[parse.idx].cipher = parse.p.cipher;
569 result->params[parse.idx].key_len = parse.p.key_len;
570 result->params[parse.idx].key = result->data[parse.idx];
571 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
580 static int nl80211_key_allowed(struct wireless_dev *wdev)
582 ASSERT_WDEV_LOCK(wdev);
584 switch (wdev->iftype) {
585 case NL80211_IFTYPE_AP:
586 case NL80211_IFTYPE_AP_VLAN:
587 case NL80211_IFTYPE_P2P_GO:
588 case NL80211_IFTYPE_MESH_POINT:
590 case NL80211_IFTYPE_ADHOC:
591 if (!wdev->current_bss)
594 case NL80211_IFTYPE_STATION:
595 case NL80211_IFTYPE_P2P_CLIENT:
596 if (wdev->sme_state != CFG80211_SME_CONNECTED)
606 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
608 struct nlattr *nl_modes = nla_nest_start(msg, attr);
612 goto nla_put_failure;
617 NLA_PUT_FLAG(msg, i);
622 nla_nest_end(msg, nl_modes);
629 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
632 struct nlattr *nl_combis;
635 nl_combis = nla_nest_start(msg,
636 NL80211_ATTR_INTERFACE_COMBINATIONS);
638 goto nla_put_failure;
640 for (i = 0; i < wiphy->n_iface_combinations; i++) {
641 const struct ieee80211_iface_combination *c;
642 struct nlattr *nl_combi, *nl_limits;
644 c = &wiphy->iface_combinations[i];
646 nl_combi = nla_nest_start(msg, i + 1);
648 goto nla_put_failure;
650 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
652 goto nla_put_failure;
654 for (j = 0; j < c->n_limits; j++) {
655 struct nlattr *nl_limit;
657 nl_limit = nla_nest_start(msg, j + 1);
659 goto nla_put_failure;
660 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
662 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
664 goto nla_put_failure;
665 nla_nest_end(msg, nl_limit);
668 nla_nest_end(msg, nl_limits);
670 if (c->beacon_int_infra_match)
672 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
673 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
674 c->num_different_channels);
675 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
678 nla_nest_end(msg, nl_combi);
681 nla_nest_end(msg, nl_combis);
688 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
689 struct cfg80211_registered_device *dev)
692 struct nlattr *nl_bands, *nl_band;
693 struct nlattr *nl_freqs, *nl_freq;
694 struct nlattr *nl_rates, *nl_rate;
695 struct nlattr *nl_cmds;
696 enum ieee80211_band band;
697 struct ieee80211_channel *chan;
698 struct ieee80211_rate *rate;
700 const struct ieee80211_txrx_stypes *mgmt_stypes =
701 dev->wiphy.mgmt_stypes;
703 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
707 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
708 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
710 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
711 cfg80211_rdev_list_generation);
713 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
714 dev->wiphy.retry_short);
715 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
716 dev->wiphy.retry_long);
717 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
718 dev->wiphy.frag_threshold);
719 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
720 dev->wiphy.rts_threshold);
721 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
722 dev->wiphy.coverage_class);
723 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
724 dev->wiphy.max_scan_ssids);
725 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
726 dev->wiphy.max_sched_scan_ssids);
727 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
728 dev->wiphy.max_scan_ie_len);
729 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
730 dev->wiphy.max_sched_scan_ie_len);
731 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
732 dev->wiphy.max_match_sets);
734 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
735 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
736 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
737 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
738 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
739 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
740 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
741 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
742 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
743 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
744 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
745 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
747 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
748 sizeof(u32) * dev->wiphy.n_cipher_suites,
749 dev->wiphy.cipher_suites);
751 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
752 dev->wiphy.max_num_pmkids);
754 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
755 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
757 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
758 dev->wiphy.available_antennas_tx);
759 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
760 dev->wiphy.available_antennas_rx);
762 if ((dev->wiphy.available_antennas_tx ||
763 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
764 u32 tx_ant = 0, rx_ant = 0;
766 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
768 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
769 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
773 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
774 dev->wiphy.interface_modes))
775 goto nla_put_failure;
777 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
779 goto nla_put_failure;
781 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
782 if (!dev->wiphy.bands[band])
785 nl_band = nla_nest_start(msg, band);
787 goto nla_put_failure;
790 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
791 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
792 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
793 &dev->wiphy.bands[band]->ht_cap.mcs);
794 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
795 dev->wiphy.bands[band]->ht_cap.cap);
796 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
797 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
798 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
799 dev->wiphy.bands[band]->ht_cap.ampdu_density);
802 /* add frequencies */
803 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
805 goto nla_put_failure;
807 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
808 nl_freq = nla_nest_start(msg, i);
810 goto nla_put_failure;
812 chan = &dev->wiphy.bands[band]->channels[i];
814 if (nl80211_msg_put_channel(msg, chan))
815 goto nla_put_failure;
817 nla_nest_end(msg, nl_freq);
820 nla_nest_end(msg, nl_freqs);
823 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
825 goto nla_put_failure;
827 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
828 nl_rate = nla_nest_start(msg, i);
830 goto nla_put_failure;
832 rate = &dev->wiphy.bands[band]->bitrates[i];
833 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
835 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
837 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
839 nla_nest_end(msg, nl_rate);
842 nla_nest_end(msg, nl_rates);
844 nla_nest_end(msg, nl_band);
846 nla_nest_end(msg, nl_bands);
848 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
850 goto nla_put_failure;
855 if (dev->ops->op) { \
857 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
861 CMD(add_virtual_intf, NEW_INTERFACE);
862 CMD(change_virtual_intf, SET_INTERFACE);
863 CMD(add_key, NEW_KEY);
864 CMD(add_beacon, NEW_BEACON);
865 CMD(add_station, NEW_STATION);
866 CMD(add_mpath, NEW_MPATH);
867 CMD(update_mesh_config, SET_MESH_CONFIG);
868 CMD(change_bss, SET_BSS);
869 CMD(auth, AUTHENTICATE);
870 CMD(assoc, ASSOCIATE);
871 CMD(deauth, DEAUTHENTICATE);
872 CMD(disassoc, DISASSOCIATE);
873 CMD(join_ibss, JOIN_IBSS);
874 CMD(join_mesh, JOIN_MESH);
875 CMD(set_pmksa, SET_PMKSA);
876 CMD(del_pmksa, DEL_PMKSA);
877 CMD(flush_pmksa, FLUSH_PMKSA);
878 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
879 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
881 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
882 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
884 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
886 CMD(set_channel, SET_CHANNEL);
887 CMD(set_wds_peer, SET_WDS_PEER);
888 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
889 CMD(tdls_mgmt, TDLS_MGMT);
890 CMD(tdls_oper, TDLS_OPER);
892 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
893 CMD(sched_scan_start, START_SCHED_SCAN);
897 if (dev->ops->connect || dev->ops->auth) {
899 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
902 if (dev->ops->disconnect || dev->ops->deauth) {
904 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
907 nla_nest_end(msg, nl_cmds);
909 if (dev->ops->remain_on_channel)
910 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
911 dev->wiphy.max_remain_on_channel_duration);
913 if (dev->ops->mgmt_tx_cancel_wait)
914 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
918 struct nlattr *nl_ftypes, *nl_ifs;
919 enum nl80211_iftype ift;
921 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
923 goto nla_put_failure;
925 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
926 nl_ftypes = nla_nest_start(msg, ift);
928 goto nla_put_failure;
930 stypes = mgmt_stypes[ift].tx;
933 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
934 (i << 4) | IEEE80211_FTYPE_MGMT);
938 nla_nest_end(msg, nl_ftypes);
941 nla_nest_end(msg, nl_ifs);
943 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
945 goto nla_put_failure;
947 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
948 nl_ftypes = nla_nest_start(msg, ift);
950 goto nla_put_failure;
952 stypes = mgmt_stypes[ift].rx;
955 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
956 (i << 4) | IEEE80211_FTYPE_MGMT);
960 nla_nest_end(msg, nl_ftypes);
962 nla_nest_end(msg, nl_ifs);
965 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
966 struct nlattr *nl_wowlan;
968 nl_wowlan = nla_nest_start(msg,
969 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
971 goto nla_put_failure;
973 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
974 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
975 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
976 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
977 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
978 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
979 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
980 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
981 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
982 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
983 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
984 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
985 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
986 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
987 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
988 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
989 if (dev->wiphy.wowlan.n_patterns) {
990 struct nl80211_wowlan_pattern_support pat = {
991 .max_patterns = dev->wiphy.wowlan.n_patterns,
993 dev->wiphy.wowlan.pattern_min_len,
995 dev->wiphy.wowlan.pattern_max_len,
997 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1001 nla_nest_end(msg, nl_wowlan);
1004 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1005 dev->wiphy.software_iftypes))
1006 goto nla_put_failure;
1008 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1009 goto nla_put_failure;
1011 return genlmsg_end(msg, hdr);
1014 genlmsg_cancel(msg, hdr);
1018 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1021 int start = cb->args[0];
1022 struct cfg80211_registered_device *dev;
1024 mutex_lock(&cfg80211_mutex);
1025 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1026 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1030 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1031 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1037 mutex_unlock(&cfg80211_mutex);
1044 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1046 struct sk_buff *msg;
1047 struct cfg80211_registered_device *dev = info->user_ptr[0];
1049 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1053 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1058 return genlmsg_reply(msg, info);
1061 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1062 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1063 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1064 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1065 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1066 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1069 static int parse_txq_params(struct nlattr *tb[],
1070 struct ieee80211_txq_params *txq_params)
1072 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1073 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1074 !tb[NL80211_TXQ_ATTR_AIFS])
1077 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1078 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1079 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1080 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1081 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1086 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1089 * You can only set the channel explicitly for AP, mesh
1090 * and WDS type interfaces; all others have their channel
1091 * managed via their respective "establish a connection"
1092 * command (connect, join, ...)
1094 * Monitors are special as they are normally slaved to
1095 * whatever else is going on, so they behave as though
1096 * you tried setting the wiphy channel itself.
1099 wdev->iftype == NL80211_IFTYPE_AP ||
1100 wdev->iftype == NL80211_IFTYPE_WDS ||
1101 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1102 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1103 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1106 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1107 struct wireless_dev *wdev,
1108 struct genl_info *info)
1110 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1114 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1117 if (!nl80211_can_set_dev_channel(wdev))
1120 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1121 channel_type = nla_get_u32(info->attrs[
1122 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1123 if (channel_type != NL80211_CHAN_NO_HT &&
1124 channel_type != NL80211_CHAN_HT20 &&
1125 channel_type != NL80211_CHAN_HT40PLUS &&
1126 channel_type != NL80211_CHAN_HT40MINUS)
1130 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1132 mutex_lock(&rdev->devlist_mtx);
1135 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1138 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1140 mutex_unlock(&rdev->devlist_mtx);
1145 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1148 struct net_device *netdev = info->user_ptr[1];
1150 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1153 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1156 struct net_device *dev = info->user_ptr[1];
1157 struct wireless_dev *wdev = dev->ieee80211_ptr;
1160 if (!info->attrs[NL80211_ATTR_MAC])
1163 if (netif_running(dev))
1166 if (!rdev->ops->set_wds_peer)
1169 if (wdev->iftype != NL80211_IFTYPE_WDS)
1172 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1173 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1177 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1179 struct cfg80211_registered_device *rdev;
1180 struct net_device *netdev = NULL;
1181 struct wireless_dev *wdev;
1182 int result = 0, rem_txq_params = 0;
1183 struct nlattr *nl_txq_params;
1185 u8 retry_short = 0, retry_long = 0;
1186 u32 frag_threshold = 0, rts_threshold = 0;
1187 u8 coverage_class = 0;
1190 * Try to find the wiphy and netdev. Normally this
1191 * function shouldn't need the netdev, but this is
1192 * done for backward compatibility -- previously
1193 * setting the channel was done per wiphy, but now
1194 * it is per netdev. Previous userland like hostapd
1195 * also passed a netdev to set_wiphy, so that it is
1196 * possible to let that go to the right netdev!
1198 mutex_lock(&cfg80211_mutex);
1200 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1201 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1203 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1204 if (netdev && netdev->ieee80211_ptr) {
1205 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1206 mutex_lock(&rdev->mtx);
1212 rdev = __cfg80211_rdev_from_info(info);
1214 mutex_unlock(&cfg80211_mutex);
1215 return PTR_ERR(rdev);
1221 mutex_lock(&rdev->mtx);
1222 } else if (netif_running(netdev) &&
1223 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1224 wdev = netdev->ieee80211_ptr;
1229 * end workaround code, by now the rdev is available
1230 * and locked, and wdev may or may not be NULL.
1233 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1234 result = cfg80211_dev_rename(
1235 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1237 mutex_unlock(&cfg80211_mutex);
1242 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1243 struct ieee80211_txq_params txq_params;
1244 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1246 if (!rdev->ops->set_txq_params) {
1247 result = -EOPNOTSUPP;
1256 nla_for_each_nested(nl_txq_params,
1257 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1259 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1260 nla_data(nl_txq_params),
1261 nla_len(nl_txq_params),
1263 result = parse_txq_params(tb, &txq_params);
1267 result = rdev->ops->set_txq_params(&rdev->wiphy,
1275 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1276 result = __nl80211_set_channel(rdev, wdev, info);
1281 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1282 enum nl80211_tx_power_setting type;
1285 if (!rdev->ops->set_tx_power) {
1286 result = -EOPNOTSUPP;
1290 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1291 type = nla_get_u32(info->attrs[idx]);
1293 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1294 (type != NL80211_TX_POWER_AUTOMATIC)) {
1299 if (type != NL80211_TX_POWER_AUTOMATIC) {
1300 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1301 mbm = nla_get_u32(info->attrs[idx]);
1304 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1309 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1310 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1312 if ((!rdev->wiphy.available_antennas_tx &&
1313 !rdev->wiphy.available_antennas_rx) ||
1314 !rdev->ops->set_antenna) {
1315 result = -EOPNOTSUPP;
1319 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1320 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1322 /* reject antenna configurations which don't match the
1323 * available antenna masks, except for the "all" mask */
1324 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1325 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1330 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1331 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1333 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1340 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1341 retry_short = nla_get_u8(
1342 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1343 if (retry_short == 0) {
1347 changed |= WIPHY_PARAM_RETRY_SHORT;
1350 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1351 retry_long = nla_get_u8(
1352 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1353 if (retry_long == 0) {
1357 changed |= WIPHY_PARAM_RETRY_LONG;
1360 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1361 frag_threshold = nla_get_u32(
1362 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1363 if (frag_threshold < 256) {
1367 if (frag_threshold != (u32) -1) {
1369 * Fragments (apart from the last one) are required to
1370 * have even length. Make the fragmentation code
1371 * simpler by stripping LSB should someone try to use
1372 * odd threshold value.
1374 frag_threshold &= ~0x1;
1376 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1379 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1380 rts_threshold = nla_get_u32(
1381 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1382 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1385 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1386 coverage_class = nla_get_u8(
1387 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1388 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1392 u8 old_retry_short, old_retry_long;
1393 u32 old_frag_threshold, old_rts_threshold;
1394 u8 old_coverage_class;
1396 if (!rdev->ops->set_wiphy_params) {
1397 result = -EOPNOTSUPP;
1401 old_retry_short = rdev->wiphy.retry_short;
1402 old_retry_long = rdev->wiphy.retry_long;
1403 old_frag_threshold = rdev->wiphy.frag_threshold;
1404 old_rts_threshold = rdev->wiphy.rts_threshold;
1405 old_coverage_class = rdev->wiphy.coverage_class;
1407 if (changed & WIPHY_PARAM_RETRY_SHORT)
1408 rdev->wiphy.retry_short = retry_short;
1409 if (changed & WIPHY_PARAM_RETRY_LONG)
1410 rdev->wiphy.retry_long = retry_long;
1411 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1412 rdev->wiphy.frag_threshold = frag_threshold;
1413 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1414 rdev->wiphy.rts_threshold = rts_threshold;
1415 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1416 rdev->wiphy.coverage_class = coverage_class;
1418 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1420 rdev->wiphy.retry_short = old_retry_short;
1421 rdev->wiphy.retry_long = old_retry_long;
1422 rdev->wiphy.frag_threshold = old_frag_threshold;
1423 rdev->wiphy.rts_threshold = old_rts_threshold;
1424 rdev->wiphy.coverage_class = old_coverage_class;
1429 mutex_unlock(&rdev->mtx);
1436 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1437 struct cfg80211_registered_device *rdev,
1438 struct net_device *dev)
1442 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1446 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1447 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1448 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1449 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1451 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1452 rdev->devlist_generation ^
1453 (cfg80211_rdev_list_generation << 2));
1455 return genlmsg_end(msg, hdr);
1458 genlmsg_cancel(msg, hdr);
1462 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1466 int wp_start = cb->args[0];
1467 int if_start = cb->args[1];
1468 struct cfg80211_registered_device *rdev;
1469 struct wireless_dev *wdev;
1471 mutex_lock(&cfg80211_mutex);
1472 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1473 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1475 if (wp_idx < wp_start) {
1481 mutex_lock(&rdev->devlist_mtx);
1482 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1483 if (if_idx < if_start) {
1487 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1488 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1489 rdev, wdev->netdev) < 0) {
1490 mutex_unlock(&rdev->devlist_mtx);
1495 mutex_unlock(&rdev->devlist_mtx);
1500 mutex_unlock(&cfg80211_mutex);
1502 cb->args[0] = wp_idx;
1503 cb->args[1] = if_idx;
1508 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1510 struct sk_buff *msg;
1511 struct cfg80211_registered_device *dev = info->user_ptr[0];
1512 struct net_device *netdev = info->user_ptr[1];
1514 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1518 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1524 return genlmsg_reply(msg, info);
1527 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1528 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1529 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1530 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1531 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1532 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1535 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1537 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1545 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1546 nla, mntr_flags_policy))
1549 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1551 *mntrflags |= (1<<flag);
1556 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1557 struct net_device *netdev, u8 use_4addr,
1558 enum nl80211_iftype iftype)
1561 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1567 case NL80211_IFTYPE_AP_VLAN:
1568 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1571 case NL80211_IFTYPE_STATION:
1572 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1582 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1585 struct vif_params params;
1587 enum nl80211_iftype otype, ntype;
1588 struct net_device *dev = info->user_ptr[1];
1589 u32 _flags, *flags = NULL;
1590 bool change = false;
1592 memset(¶ms, 0, sizeof(params));
1594 otype = ntype = dev->ieee80211_ptr->iftype;
1596 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1597 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1600 if (ntype > NL80211_IFTYPE_MAX)
1604 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1605 struct wireless_dev *wdev = dev->ieee80211_ptr;
1607 if (ntype != NL80211_IFTYPE_MESH_POINT)
1609 if (netif_running(dev))
1613 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1614 IEEE80211_MAX_MESH_ID_LEN);
1615 wdev->mesh_id_up_len =
1616 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1617 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1618 wdev->mesh_id_up_len);
1622 if (info->attrs[NL80211_ATTR_4ADDR]) {
1623 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1625 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1629 params.use_4addr = -1;
1632 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1633 if (ntype != NL80211_IFTYPE_MONITOR)
1635 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1645 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1649 if (!err && params.use_4addr != -1)
1650 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1655 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1657 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1658 struct vif_params params;
1659 struct net_device *dev;
1661 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1664 memset(¶ms, 0, sizeof(params));
1666 if (!info->attrs[NL80211_ATTR_IFNAME])
1669 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1670 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1671 if (type > NL80211_IFTYPE_MAX)
1675 if (!rdev->ops->add_virtual_intf ||
1676 !(rdev->wiphy.interface_modes & (1 << type)))
1679 if (info->attrs[NL80211_ATTR_4ADDR]) {
1680 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1681 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1686 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1687 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1689 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1690 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1691 type, err ? NULL : &flags, ¶ms);
1693 return PTR_ERR(dev);
1695 if (type == NL80211_IFTYPE_MESH_POINT &&
1696 info->attrs[NL80211_ATTR_MESH_ID]) {
1697 struct wireless_dev *wdev = dev->ieee80211_ptr;
1700 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1701 IEEE80211_MAX_MESH_ID_LEN);
1702 wdev->mesh_id_up_len =
1703 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1704 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1705 wdev->mesh_id_up_len);
1712 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1715 struct net_device *dev = info->user_ptr[1];
1717 if (!rdev->ops->del_virtual_intf)
1720 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1723 struct get_key_cookie {
1724 struct sk_buff *msg;
1729 static void get_key_callback(void *c, struct key_params *params)
1732 struct get_key_cookie *cookie = c;
1735 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1736 params->key_len, params->key);
1739 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1740 params->seq_len, params->seq);
1743 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1746 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1748 goto nla_put_failure;
1751 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1752 params->key_len, params->key);
1755 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1756 params->seq_len, params->seq);
1759 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1762 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1764 nla_nest_end(cookie->msg, key);
1771 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1775 struct net_device *dev = info->user_ptr[1];
1777 const u8 *mac_addr = NULL;
1779 struct get_key_cookie cookie = {
1783 struct sk_buff *msg;
1785 if (info->attrs[NL80211_ATTR_KEY_IDX])
1786 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1791 if (info->attrs[NL80211_ATTR_MAC])
1792 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1794 pairwise = !!mac_addr;
1795 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1796 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1797 if (kt >= NUM_NL80211_KEYTYPES)
1799 if (kt != NL80211_KEYTYPE_GROUP &&
1800 kt != NL80211_KEYTYPE_PAIRWISE)
1802 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1805 if (!rdev->ops->get_key)
1808 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1812 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1813 NL80211_CMD_NEW_KEY);
1815 return PTR_ERR(hdr);
1818 cookie.idx = key_idx;
1820 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1821 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1823 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1825 if (pairwise && mac_addr &&
1826 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1829 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1830 mac_addr, &cookie, get_key_callback);
1836 goto nla_put_failure;
1838 genlmsg_end(msg, hdr);
1839 return genlmsg_reply(msg, info);
1848 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1851 struct key_parse key;
1853 struct net_device *dev = info->user_ptr[1];
1855 err = nl80211_parse_key(info, &key);
1862 /* only support setting default key */
1863 if (!key.def && !key.defmgmt)
1866 wdev_lock(dev->ieee80211_ptr);
1869 if (!rdev->ops->set_default_key) {
1874 err = nl80211_key_allowed(dev->ieee80211_ptr);
1878 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1879 key.def_uni, key.def_multi);
1884 #ifdef CONFIG_CFG80211_WEXT
1885 dev->ieee80211_ptr->wext.default_key = key.idx;
1888 if (key.def_uni || !key.def_multi) {
1893 if (!rdev->ops->set_default_mgmt_key) {
1898 err = nl80211_key_allowed(dev->ieee80211_ptr);
1902 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1907 #ifdef CONFIG_CFG80211_WEXT
1908 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1913 wdev_unlock(dev->ieee80211_ptr);
1918 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1920 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1922 struct net_device *dev = info->user_ptr[1];
1923 struct key_parse key;
1924 const u8 *mac_addr = NULL;
1926 err = nl80211_parse_key(info, &key);
1933 if (info->attrs[NL80211_ATTR_MAC])
1934 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1936 if (key.type == -1) {
1938 key.type = NL80211_KEYTYPE_PAIRWISE;
1940 key.type = NL80211_KEYTYPE_GROUP;
1944 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1945 key.type != NL80211_KEYTYPE_GROUP)
1948 if (!rdev->ops->add_key)
1951 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1952 key.type == NL80211_KEYTYPE_PAIRWISE,
1956 wdev_lock(dev->ieee80211_ptr);
1957 err = nl80211_key_allowed(dev->ieee80211_ptr);
1959 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1960 key.type == NL80211_KEYTYPE_PAIRWISE,
1962 wdev_unlock(dev->ieee80211_ptr);
1967 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1969 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1971 struct net_device *dev = info->user_ptr[1];
1972 u8 *mac_addr = NULL;
1973 struct key_parse key;
1975 err = nl80211_parse_key(info, &key);
1979 if (info->attrs[NL80211_ATTR_MAC])
1980 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1982 if (key.type == -1) {
1984 key.type = NL80211_KEYTYPE_PAIRWISE;
1986 key.type = NL80211_KEYTYPE_GROUP;
1990 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1991 key.type != NL80211_KEYTYPE_GROUP)
1994 if (!rdev->ops->del_key)
1997 wdev_lock(dev->ieee80211_ptr);
1998 err = nl80211_key_allowed(dev->ieee80211_ptr);
2000 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2001 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2005 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2006 key.type == NL80211_KEYTYPE_PAIRWISE,
2009 #ifdef CONFIG_CFG80211_WEXT
2011 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2012 dev->ieee80211_ptr->wext.default_key = -1;
2013 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2014 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2017 wdev_unlock(dev->ieee80211_ptr);
2022 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2024 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2025 struct beacon_parameters *info);
2026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2027 struct net_device *dev = info->user_ptr[1];
2028 struct wireless_dev *wdev = dev->ieee80211_ptr;
2029 struct beacon_parameters params;
2030 int haveinfo = 0, err;
2032 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2033 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2034 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2035 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2038 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2039 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2042 memset(¶ms, 0, sizeof(params));
2044 switch (info->genlhdr->cmd) {
2045 case NL80211_CMD_NEW_BEACON:
2046 /* these are required for NEW_BEACON */
2047 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2048 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2049 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2053 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2054 params.dtim_period =
2055 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2057 err = cfg80211_validate_beacon_int(rdev, params.interval);
2062 * In theory, some of these attributes could be required for
2063 * NEW_BEACON, but since they were not used when the command was
2064 * originally added, keep them optional for old user space
2065 * programs to work with drivers that do not need the additional
2068 if (info->attrs[NL80211_ATTR_SSID]) {
2069 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2071 nla_len(info->attrs[NL80211_ATTR_SSID]);
2072 if (params.ssid_len == 0 ||
2073 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2077 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2078 params.hidden_ssid = nla_get_u32(
2079 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2080 if (params.hidden_ssid !=
2081 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2082 params.hidden_ssid !=
2083 NL80211_HIDDEN_SSID_ZERO_LEN &&
2084 params.hidden_ssid !=
2085 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2089 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2091 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2092 params.auth_type = nla_get_u32(
2093 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2094 if (!nl80211_valid_auth_type(params.auth_type))
2097 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2099 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2100 NL80211_MAX_NR_CIPHER_SUITES);
2104 call = rdev->ops->add_beacon;
2106 case NL80211_CMD_SET_BEACON:
2107 call = rdev->ops->set_beacon;
2117 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2118 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2120 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2124 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2125 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2127 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2134 if (info->attrs[NL80211_ATTR_IE]) {
2135 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2136 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2139 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2140 params.proberesp_ies =
2141 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2142 params.proberesp_ies_len =
2143 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2146 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2147 params.assocresp_ies =
2148 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2149 params.assocresp_ies_len =
2150 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2153 err = call(&rdev->wiphy, dev, ¶ms);
2154 if (!err && params.interval)
2155 wdev->beacon_interval = params.interval;
2159 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2162 struct net_device *dev = info->user_ptr[1];
2163 struct wireless_dev *wdev = dev->ieee80211_ptr;
2166 if (!rdev->ops->del_beacon)
2169 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2170 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2173 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2175 wdev->beacon_interval = 0;
2179 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2180 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2181 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2182 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2183 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2184 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2187 static int parse_station_flags(struct genl_info *info,
2188 struct station_parameters *params)
2190 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2195 * Try parsing the new attribute first so userspace
2196 * can specify both for older kernels.
2198 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2200 struct nl80211_sta_flag_update *sta_flags;
2202 sta_flags = nla_data(nla);
2203 params->sta_flags_mask = sta_flags->mask;
2204 params->sta_flags_set = sta_flags->set;
2205 if ((params->sta_flags_mask |
2206 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2211 /* if present, parse the old attribute */
2213 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2217 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2218 nla, sta_flags_policy))
2221 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2222 params->sta_flags_mask &= ~1;
2224 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2226 params->sta_flags_set |= (1<<flag);
2231 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2234 struct nlattr *rate;
2237 rate = nla_nest_start(msg, attr);
2239 goto nla_put_failure;
2241 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2242 bitrate = cfg80211_calculate_bitrate(info);
2244 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2246 if (info->flags & RATE_INFO_FLAGS_MCS)
2247 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2248 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2249 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2250 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2251 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2253 nla_nest_end(msg, rate);
2260 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2261 int flags, struct net_device *dev,
2262 const u8 *mac_addr, struct station_info *sinfo)
2265 struct nlattr *sinfoattr, *bss_param;
2267 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2271 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2272 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2274 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2276 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2278 goto nla_put_failure;
2279 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2280 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2281 sinfo->connected_time);
2282 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2283 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2284 sinfo->inactive_time);
2285 if (sinfo->filled & STATION_INFO_RX_BYTES)
2286 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2288 if (sinfo->filled & STATION_INFO_TX_BYTES)
2289 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2291 if (sinfo->filled & STATION_INFO_LLID)
2292 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2294 if (sinfo->filled & STATION_INFO_PLID)
2295 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2297 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2298 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2299 sinfo->plink_state);
2300 if (sinfo->filled & STATION_INFO_SIGNAL)
2301 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2303 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2304 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2306 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2307 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2308 NL80211_STA_INFO_TX_BITRATE))
2309 goto nla_put_failure;
2311 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2312 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2313 NL80211_STA_INFO_RX_BITRATE))
2314 goto nla_put_failure;
2316 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2317 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2319 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2320 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2322 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2323 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2325 if (sinfo->filled & STATION_INFO_TX_FAILED)
2326 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2328 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2329 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2331 goto nla_put_failure;
2333 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2334 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2335 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2336 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2337 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2339 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2340 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2341 sinfo->bss_param.dtim_period);
2342 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2343 sinfo->bss_param.beacon_interval);
2345 nla_nest_end(msg, bss_param);
2347 nla_nest_end(msg, sinfoattr);
2349 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
2350 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2351 sinfo->assoc_req_ies);
2353 return genlmsg_end(msg, hdr);
2356 genlmsg_cancel(msg, hdr);
2360 static int nl80211_dump_station(struct sk_buff *skb,
2361 struct netlink_callback *cb)
2363 struct station_info sinfo;
2364 struct cfg80211_registered_device *dev;
2365 struct net_device *netdev;
2366 u8 mac_addr[ETH_ALEN];
2367 int sta_idx = cb->args[1];
2370 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2374 if (!dev->ops->dump_station) {
2380 memset(&sinfo, 0, sizeof(sinfo));
2381 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2388 if (nl80211_send_station(skb,
2389 NETLINK_CB(cb->skb).pid,
2390 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2400 cb->args[1] = sta_idx;
2403 nl80211_finish_netdev_dump(dev);
2408 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2410 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2411 struct net_device *dev = info->user_ptr[1];
2412 struct station_info sinfo;
2413 struct sk_buff *msg;
2414 u8 *mac_addr = NULL;
2417 memset(&sinfo, 0, sizeof(sinfo));
2419 if (!info->attrs[NL80211_ATTR_MAC])
2422 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2424 if (!rdev->ops->get_station)
2427 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2431 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2435 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2436 dev, mac_addr, &sinfo) < 0) {
2441 return genlmsg_reply(msg, info);
2445 * Get vlan interface making sure it is running and on the right wiphy.
2447 static int get_vlan(struct genl_info *info,
2448 struct cfg80211_registered_device *rdev,
2449 struct net_device **vlan)
2451 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2455 *vlan = dev_get_by_index(genl_info_net(info),
2456 nla_get_u32(vlanattr));
2459 if (!(*vlan)->ieee80211_ptr)
2461 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2463 if (!netif_running(*vlan))
2469 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2471 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2473 struct net_device *dev = info->user_ptr[1];
2474 struct station_parameters params;
2475 u8 *mac_addr = NULL;
2477 memset(¶ms, 0, sizeof(params));
2479 params.listen_interval = -1;
2480 params.plink_state = -1;
2482 if (info->attrs[NL80211_ATTR_STA_AID])
2485 if (!info->attrs[NL80211_ATTR_MAC])
2488 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2490 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2491 params.supported_rates =
2492 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2493 params.supported_rates_len =
2494 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2497 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2498 params.listen_interval =
2499 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2501 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2503 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2505 if (parse_station_flags(info, ¶ms))
2508 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2509 params.plink_action =
2510 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2512 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2513 params.plink_state =
2514 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2516 err = get_vlan(info, rdev, ¶ms.vlan);
2520 /* validate settings */
2523 switch (dev->ieee80211_ptr->iftype) {
2524 case NL80211_IFTYPE_AP:
2525 case NL80211_IFTYPE_AP_VLAN:
2526 case NL80211_IFTYPE_P2P_GO:
2527 /* disallow mesh-specific things */
2528 if (params.plink_action)
2531 case NL80211_IFTYPE_P2P_CLIENT:
2532 case NL80211_IFTYPE_STATION:
2533 /* disallow things sta doesn't support */
2534 if (params.plink_action)
2538 if (params.supported_rates &&
2539 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2543 if (params.listen_interval >= 0)
2545 if (params.sta_flags_mask &
2546 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2547 BIT(NL80211_STA_FLAG_TDLS_PEER)))
2549 /* can't change the TDLS bit */
2550 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2551 (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2554 case NL80211_IFTYPE_MESH_POINT:
2555 /* disallow things mesh doesn't support */
2560 if (params.listen_interval >= 0)
2562 if (params.sta_flags_mask &
2563 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2564 BIT(NL80211_STA_FLAG_MFP) |
2565 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2575 if (!rdev->ops->change_station) {
2580 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2584 dev_put(params.vlan);
2589 static struct nla_policy
2590 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2591 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2592 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2595 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2599 struct net_device *dev = info->user_ptr[1];
2600 struct station_parameters params;
2601 u8 *mac_addr = NULL;
2603 memset(¶ms, 0, sizeof(params));
2605 if (!info->attrs[NL80211_ATTR_MAC])
2608 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2611 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2614 if (!info->attrs[NL80211_ATTR_STA_AID])
2617 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2618 params.supported_rates =
2619 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2620 params.supported_rates_len =
2621 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2622 params.listen_interval =
2623 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2625 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2626 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2629 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2631 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2633 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2634 params.plink_action =
2635 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2637 if (parse_station_flags(info, ¶ms))
2640 /* parse WME attributes if sta is WME capable */
2641 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2642 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2643 info->attrs[NL80211_ATTR_STA_WME]) {
2644 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2647 nla = info->attrs[NL80211_ATTR_STA_WME];
2648 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2649 nl80211_sta_wme_policy);
2653 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2654 params.uapsd_queues =
2655 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2656 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2659 if (tb[NL80211_STA_WME_MAX_SP])
2661 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2663 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2666 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2669 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2670 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2671 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2672 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
2673 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
2677 * Only managed stations can add TDLS peers, and only when the
2678 * wiphy supports external TDLS setup.
2680 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION &&
2681 !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2682 (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2683 (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
2686 err = get_vlan(info, rdev, ¶ms.vlan);
2690 /* validate settings */
2693 if (!rdev->ops->add_station) {
2698 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2702 dev_put(params.vlan);
2706 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2709 struct net_device *dev = info->user_ptr[1];
2710 u8 *mac_addr = NULL;
2712 if (info->attrs[NL80211_ATTR_MAC])
2713 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2715 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2716 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2717 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2718 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2721 if (!rdev->ops->del_station)
2724 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2727 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2728 int flags, struct net_device *dev,
2729 u8 *dst, u8 *next_hop,
2730 struct mpath_info *pinfo)
2733 struct nlattr *pinfoattr;
2735 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2739 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2740 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2741 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2743 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2745 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2747 goto nla_put_failure;
2748 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2749 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2751 if (pinfo->filled & MPATH_INFO_SN)
2752 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2754 if (pinfo->filled & MPATH_INFO_METRIC)
2755 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2757 if (pinfo->filled & MPATH_INFO_EXPTIME)
2758 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2760 if (pinfo->filled & MPATH_INFO_FLAGS)
2761 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2763 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2764 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2765 pinfo->discovery_timeout);
2766 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2767 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2768 pinfo->discovery_retries);
2770 nla_nest_end(msg, pinfoattr);
2772 return genlmsg_end(msg, hdr);
2775 genlmsg_cancel(msg, hdr);
2779 static int nl80211_dump_mpath(struct sk_buff *skb,
2780 struct netlink_callback *cb)
2782 struct mpath_info pinfo;
2783 struct cfg80211_registered_device *dev;
2784 struct net_device *netdev;
2786 u8 next_hop[ETH_ALEN];
2787 int path_idx = cb->args[1];
2790 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2794 if (!dev->ops->dump_mpath) {
2799 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2805 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2806 dst, next_hop, &pinfo);
2812 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2813 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2814 netdev, dst, next_hop,
2823 cb->args[1] = path_idx;
2826 nl80211_finish_netdev_dump(dev);
2830 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2834 struct net_device *dev = info->user_ptr[1];
2835 struct mpath_info pinfo;
2836 struct sk_buff *msg;
2838 u8 next_hop[ETH_ALEN];
2840 memset(&pinfo, 0, sizeof(pinfo));
2842 if (!info->attrs[NL80211_ATTR_MAC])
2845 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2847 if (!rdev->ops->get_mpath)
2850 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2853 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2857 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2861 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2862 dev, dst, next_hop, &pinfo) < 0) {
2867 return genlmsg_reply(msg, info);
2870 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2873 struct net_device *dev = info->user_ptr[1];
2875 u8 *next_hop = NULL;
2877 if (!info->attrs[NL80211_ATTR_MAC])
2880 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2883 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2884 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2886 if (!rdev->ops->change_mpath)
2889 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2892 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2895 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2898 struct net_device *dev = info->user_ptr[1];
2900 u8 *next_hop = NULL;
2902 if (!info->attrs[NL80211_ATTR_MAC])
2905 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2908 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2909 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2911 if (!rdev->ops->add_mpath)
2914 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2917 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2920 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2922 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2923 struct net_device *dev = info->user_ptr[1];
2926 if (info->attrs[NL80211_ATTR_MAC])
2927 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2929 if (!rdev->ops->del_mpath)
2932 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2935 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2938 struct net_device *dev = info->user_ptr[1];
2939 struct bss_parameters params;
2941 memset(¶ms, 0, sizeof(params));
2942 /* default to not changing parameters */
2943 params.use_cts_prot = -1;
2944 params.use_short_preamble = -1;
2945 params.use_short_slot_time = -1;
2946 params.ap_isolate = -1;
2947 params.ht_opmode = -1;
2949 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2950 params.use_cts_prot =
2951 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2952 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2953 params.use_short_preamble =
2954 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2955 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2956 params.use_short_slot_time =
2957 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2958 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2959 params.basic_rates =
2960 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2961 params.basic_rates_len =
2962 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2964 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2965 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2966 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2968 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
2970 if (!rdev->ops->change_bss)
2973 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2974 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2977 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2980 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2981 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2982 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2983 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2984 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2985 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2986 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2989 static int parse_reg_rule(struct nlattr *tb[],
2990 struct ieee80211_reg_rule *reg_rule)
2992 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2993 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2995 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2997 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2999 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3001 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3003 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3006 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3008 freq_range->start_freq_khz =
3009 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3010 freq_range->end_freq_khz =
3011 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3012 freq_range->max_bandwidth_khz =
3013 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3015 power_rule->max_eirp =
3016 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3018 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3019 power_rule->max_antenna_gain =
3020 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3025 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3031 * You should only get this when cfg80211 hasn't yet initialized
3032 * completely when built-in to the kernel right between the time
3033 * window between nl80211_init() and regulatory_init(), if that is
3036 mutex_lock(&cfg80211_mutex);
3037 if (unlikely(!cfg80211_regdomain)) {
3038 mutex_unlock(&cfg80211_mutex);
3039 return -EINPROGRESS;
3041 mutex_unlock(&cfg80211_mutex);
3043 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3046 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3048 r = regulatory_hint_user(data);
3053 static int nl80211_get_mesh_config(struct sk_buff *skb,
3054 struct genl_info *info)
3056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3057 struct net_device *dev = info->user_ptr[1];
3058 struct wireless_dev *wdev = dev->ieee80211_ptr;
3059 struct mesh_config cur_params;
3062 struct nlattr *pinfoattr;
3063 struct sk_buff *msg;
3065 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3068 if (!rdev->ops->get_mesh_config)
3072 /* If not connected, get default parameters */
3073 if (!wdev->mesh_id_len)
3074 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3076 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3083 /* Draw up a netlink message to send back */
3084 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3087 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3088 NL80211_CMD_GET_MESH_CONFIG);
3091 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3093 goto nla_put_failure;
3094 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3095 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3096 cur_params.dot11MeshRetryTimeout);
3097 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3098 cur_params.dot11MeshConfirmTimeout);
3099 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3100 cur_params.dot11MeshHoldingTimeout);
3101 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3102 cur_params.dot11MeshMaxPeerLinks);
3103 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3104 cur_params.dot11MeshMaxRetries);
3105 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3106 cur_params.dot11MeshTTL);
3107 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3108 cur_params.element_ttl);
3109 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3110 cur_params.auto_open_plinks);
3111 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3112 cur_params.dot11MeshHWMPmaxPREQretries);
3113 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3114 cur_params.path_refresh_time);
3115 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3116 cur_params.min_discovery_timeout);
3117 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3118 cur_params.dot11MeshHWMPactivePathTimeout);
3119 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3120 cur_params.dot11MeshHWMPpreqMinInterval);
3121 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3122 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
3123 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3124 cur_params.dot11MeshHWMPRootMode);
3125 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3126 cur_params.dot11MeshHWMPRannInterval);
3127 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3128 cur_params.dot11MeshGateAnnouncementProtocol);
3129 nla_nest_end(msg, pinfoattr);
3130 genlmsg_end(msg, hdr);
3131 return genlmsg_reply(msg, info);
3134 genlmsg_cancel(msg, hdr);
3140 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3141 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3142 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3143 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3144 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3145 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3146 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3147 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3148 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3150 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3151 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3152 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3153 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3154 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3155 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3156 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3157 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3158 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3161 static const struct nla_policy
3162 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3163 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3164 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3165 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3166 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3167 .len = IEEE80211_MAX_DATA_LEN },
3168 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3171 static int nl80211_parse_mesh_config(struct genl_info *info,
3172 struct mesh_config *cfg,
3175 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3178 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3180 if (table[attr_num]) {\
3181 cfg->param = nla_fn(table[attr_num]); \
3182 mask |= (1 << (attr_num - 1)); \
3187 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3189 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3190 info->attrs[NL80211_ATTR_MESH_CONFIG],
3191 nl80211_meshconf_params_policy))
3194 /* This makes sure that there aren't more than 32 mesh config
3195 * parameters (otherwise our bitfield scheme would not work.) */
3196 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3198 /* Fill in the params struct */
3199 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3200 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3201 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3202 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3204 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3206 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3207 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3208 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3210 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3211 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3212 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3213 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3214 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3216 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3218 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3219 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3221 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3223 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3224 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3227 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3230 dot11MeshHWMPnetDiameterTraversalTime,
3231 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3234 dot11MeshHWMPRootMode, mask,
3235 NL80211_MESHCONF_HWMP_ROOTMODE,
3237 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3238 dot11MeshHWMPRannInterval, mask,
3239 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3242 dot11MeshGateAnnouncementProtocol, mask,
3243 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3250 #undef FILL_IN_MESH_PARAM_IF_SET
3253 static int nl80211_parse_mesh_setup(struct genl_info *info,
3254 struct mesh_setup *setup)
3256 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3258 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3260 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3261 info->attrs[NL80211_ATTR_MESH_SETUP],
3262 nl80211_mesh_setup_params_policy))
3265 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3266 setup->path_sel_proto =
3267 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3268 IEEE80211_PATH_PROTOCOL_VENDOR :
3269 IEEE80211_PATH_PROTOCOL_HWMP;
3271 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3272 setup->path_metric =
3273 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3274 IEEE80211_PATH_METRIC_VENDOR :
3275 IEEE80211_PATH_METRIC_AIRTIME;
3278 if (tb[NL80211_MESH_SETUP_IE]) {
3279 struct nlattr *ieattr =
3280 tb[NL80211_MESH_SETUP_IE];
3281 if (!is_valid_ie_attr(ieattr))
3283 setup->ie = nla_data(ieattr);
3284 setup->ie_len = nla_len(ieattr);
3286 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3287 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3292 static int nl80211_update_mesh_config(struct sk_buff *skb,
3293 struct genl_info *info)
3295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3296 struct net_device *dev = info->user_ptr[1];
3297 struct wireless_dev *wdev = dev->ieee80211_ptr;
3298 struct mesh_config cfg;
3302 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3305 if (!rdev->ops->update_mesh_config)
3308 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3313 if (!wdev->mesh_id_len)
3317 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3325 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3327 struct sk_buff *msg;
3329 struct nlattr *nl_reg_rules;
3333 mutex_lock(&cfg80211_mutex);
3335 if (!cfg80211_regdomain)
3338 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3344 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3345 NL80211_CMD_GET_REG);
3349 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3350 cfg80211_regdomain->alpha2);
3352 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3354 goto nla_put_failure;
3356 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3357 struct nlattr *nl_reg_rule;
3358 const struct ieee80211_reg_rule *reg_rule;
3359 const struct ieee80211_freq_range *freq_range;
3360 const struct ieee80211_power_rule *power_rule;
3362 reg_rule = &cfg80211_regdomain->reg_rules[i];
3363 freq_range = ®_rule->freq_range;
3364 power_rule = ®_rule->power_rule;
3366 nl_reg_rule = nla_nest_start(msg, i);
3368 goto nla_put_failure;
3370 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3372 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3373 freq_range->start_freq_khz);
3374 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3375 freq_range->end_freq_khz);
3376 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3377 freq_range->max_bandwidth_khz);
3378 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3379 power_rule->max_antenna_gain);
3380 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3381 power_rule->max_eirp);
3383 nla_nest_end(msg, nl_reg_rule);
3386 nla_nest_end(msg, nl_reg_rules);
3388 genlmsg_end(msg, hdr);
3389 err = genlmsg_reply(msg, info);
3393 genlmsg_cancel(msg, hdr);
3398 mutex_unlock(&cfg80211_mutex);
3402 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3404 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3405 struct nlattr *nl_reg_rule;
3406 char *alpha2 = NULL;
3407 int rem_reg_rules = 0, r = 0;
3408 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3409 struct ieee80211_regdomain *rd = NULL;
3411 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3414 if (!info->attrs[NL80211_ATTR_REG_RULES])
3417 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3419 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3422 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3426 mutex_lock(&cfg80211_mutex);
3428 if (!reg_is_valid_request(alpha2)) {
3433 size_of_regd = sizeof(struct ieee80211_regdomain) +
3434 (num_rules * sizeof(struct ieee80211_reg_rule));
3436 rd = kzalloc(size_of_regd, GFP_KERNEL);
3442 rd->n_reg_rules = num_rules;
3443 rd->alpha2[0] = alpha2[0];
3444 rd->alpha2[1] = alpha2[1];
3446 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3448 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3449 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3451 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3457 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3463 BUG_ON(rule_idx != num_rules);
3467 mutex_unlock(&cfg80211_mutex);
3472 mutex_unlock(&cfg80211_mutex);
3477 static int validate_scan_freqs(struct nlattr *freqs)
3479 struct nlattr *attr1, *attr2;
3480 int n_channels = 0, tmp1, tmp2;
3482 nla_for_each_nested(attr1, freqs, tmp1) {
3485 * Some hardware has a limited channel list for
3486 * scanning, and it is pretty much nonsensical
3487 * to scan for a channel twice, so disallow that
3488 * and don't require drivers to check that the
3489 * channel list they get isn't longer than what
3490 * they can scan, as long as they can scan all
3491 * the channels they registered at once.
3493 nla_for_each_nested(attr2, freqs, tmp2)
3494 if (attr1 != attr2 &&
3495 nla_get_u32(attr1) == nla_get_u32(attr2))
3502 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3505 struct net_device *dev = info->user_ptr[1];
3506 struct cfg80211_scan_request *request;
3507 struct nlattr *attr;
3508 struct wiphy *wiphy;
3509 int err, tmp, n_ssids = 0, n_channels, i;
3512 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3515 wiphy = &rdev->wiphy;
3517 if (!rdev->ops->scan)
3523 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3524 n_channels = validate_scan_freqs(
3525 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3529 enum ieee80211_band band;
3532 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3533 if (wiphy->bands[band])
3534 n_channels += wiphy->bands[band]->n_channels;
3537 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3538 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3541 if (n_ssids > wiphy->max_scan_ssids)
3544 if (info->attrs[NL80211_ATTR_IE])
3545 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3549 if (ie_len > wiphy->max_scan_ie_len)
3552 request = kzalloc(sizeof(*request)
3553 + sizeof(*request->ssids) * n_ssids
3554 + sizeof(*request->channels) * n_channels
3555 + ie_len, GFP_KERNEL);
3560 request->ssids = (void *)&request->channels[n_channels];
3561 request->n_ssids = n_ssids;
3564 request->ie = (void *)(request->ssids + n_ssids);
3566 request->ie = (void *)(request->channels + n_channels);
3570 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3571 /* user specified, bail out if channel not found */
3572 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3573 struct ieee80211_channel *chan;
3575 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3582 /* ignore disabled channels */
3583 if (chan->flags & IEEE80211_CHAN_DISABLED)
3586 request->channels[i] = chan;
3590 enum ieee80211_band band;
3593 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3595 if (!wiphy->bands[band])
3597 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3598 struct ieee80211_channel *chan;
3600 chan = &wiphy->bands[band]->channels[j];
3602 if (chan->flags & IEEE80211_CHAN_DISABLED)
3605 request->channels[i] = chan;
3616 request->n_channels = i;
3619 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3620 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3621 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3625 request->ssids[i].ssid_len = nla_len(attr);
3626 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3631 if (info->attrs[NL80211_ATTR_IE]) {
3632 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3633 memcpy((void *)request->ie,
3634 nla_data(info->attrs[NL80211_ATTR_IE]),
3638 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3639 if (wiphy->bands[i])
3641 (1 << wiphy->bands[i]->n_bitrates) - 1;
3643 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3644 nla_for_each_nested(attr,
3645 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3647 enum ieee80211_band band = nla_type(attr);
3649 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3653 err = ieee80211_get_ratemask(wiphy->bands[band],
3656 &request->rates[band]);
3663 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3666 request->wiphy = &rdev->wiphy;
3668 rdev->scan_req = request;
3669 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3672 nl80211_send_scan_start(rdev, dev);
3676 rdev->scan_req = NULL;
3683 static int nl80211_start_sched_scan(struct sk_buff *skb,
3684 struct genl_info *info)
3686 struct cfg80211_sched_scan_request *request;
3687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3688 struct net_device *dev = info->user_ptr[1];
3689 struct nlattr *attr;
3690 struct wiphy *wiphy;
3691 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
3693 enum ieee80211_band band;
3695 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
3697 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3698 !rdev->ops->sched_scan_start)
3701 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3704 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3707 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3711 wiphy = &rdev->wiphy;
3713 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3714 n_channels = validate_scan_freqs(
3715 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3721 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3722 if (wiphy->bands[band])
3723 n_channels += wiphy->bands[band]->n_channels;
3726 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3727 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3731 if (n_ssids > wiphy->max_sched_scan_ssids)
3734 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3735 nla_for_each_nested(attr,
3736 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3740 if (n_match_sets > wiphy->max_match_sets)
3743 if (info->attrs[NL80211_ATTR_IE])
3744 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3748 if (ie_len > wiphy->max_sched_scan_ie_len)
3751 mutex_lock(&rdev->sched_scan_mtx);
3753 if (rdev->sched_scan_req) {
3758 request = kzalloc(sizeof(*request)
3759 + sizeof(*request->ssids) * n_ssids
3760 + sizeof(*request->match_sets) * n_match_sets
3761 + sizeof(*request->channels) * n_channels
3762 + ie_len, GFP_KERNEL);
3769 request->ssids = (void *)&request->channels[n_channels];
3770 request->n_ssids = n_ssids;
3773 request->ie = (void *)(request->ssids + n_ssids);
3775 request->ie = (void *)(request->channels + n_channels);
3780 request->match_sets = (void *)(request->ie + ie_len);
3781 else if (request->ssids)
3782 request->match_sets =
3783 (void *)(request->ssids + n_ssids);
3785 request->match_sets =
3786 (void *)(request->channels + n_channels);
3788 request->n_match_sets = n_match_sets;
3791 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3792 /* user specified, bail out if channel not found */
3793 nla_for_each_nested(attr,
3794 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3796 struct ieee80211_channel *chan;
3798 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3805 /* ignore disabled channels */
3806 if (chan->flags & IEEE80211_CHAN_DISABLED)
3809 request->channels[i] = chan;
3814 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3816 if (!wiphy->bands[band])
3818 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3819 struct ieee80211_channel *chan;
3821 chan = &wiphy->bands[band]->channels[j];
3823 if (chan->flags & IEEE80211_CHAN_DISABLED)
3826 request->channels[i] = chan;
3837 request->n_channels = i;
3840 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3841 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3843 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3847 request->ssids[i].ssid_len = nla_len(attr);
3848 memcpy(request->ssids[i].ssid, nla_data(attr),
3855 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3856 nla_for_each_nested(attr,
3857 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3859 struct nlattr *ssid;
3861 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3862 nla_data(attr), nla_len(attr),
3863 nl80211_match_policy);
3864 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3866 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3870 memcpy(request->match_sets[i].ssid.ssid,
3871 nla_data(ssid), nla_len(ssid));
3872 request->match_sets[i].ssid.ssid_len =
3879 if (info->attrs[NL80211_ATTR_IE]) {
3880 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3881 memcpy((void *)request->ie,
3882 nla_data(info->attrs[NL80211_ATTR_IE]),
3887 request->wiphy = &rdev->wiphy;
3888 request->interval = interval;
3890 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3892 rdev->sched_scan_req = request;
3893 nl80211_send_sched_scan(rdev, dev,
3894 NL80211_CMD_START_SCHED_SCAN);
3901 mutex_unlock(&rdev->sched_scan_mtx);
3905 static int nl80211_stop_sched_scan(struct sk_buff *skb,
3906 struct genl_info *info)
3908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3911 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3912 !rdev->ops->sched_scan_stop)
3915 mutex_lock(&rdev->sched_scan_mtx);
3916 err = __cfg80211_stop_sched_scan(rdev, false);
3917 mutex_unlock(&rdev->sched_scan_mtx);
3922 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3924 struct cfg80211_registered_device *rdev,
3925 struct wireless_dev *wdev,
3926 struct cfg80211_internal_bss *intbss)
3928 struct cfg80211_bss *res = &intbss->pub;
3933 ASSERT_WDEV_LOCK(wdev);
3935 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
3936 NL80211_CMD_NEW_SCAN_RESULTS);
3940 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3942 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3943 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3945 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3947 goto nla_put_failure;
3948 if (!is_zero_ether_addr(res->bssid))
3949 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3950 if (res->information_elements && res->len_information_elements)
3951 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3952 res->len_information_elements,
3953 res->information_elements);
3954 if (res->beacon_ies && res->len_beacon_ies &&
3955 res->beacon_ies != res->information_elements)
3956 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3957 res->len_beacon_ies, res->beacon_ies);
3959 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3960 if (res->beacon_interval)
3961 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3962 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3963 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3964 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3965 jiffies_to_msecs(jiffies - intbss->ts));
3967 switch (rdev->wiphy.signal_type) {
3968 case CFG80211_SIGNAL_TYPE_MBM:
3969 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3971 case CFG80211_SIGNAL_TYPE_UNSPEC:
3972 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3978 switch (wdev->iftype) {
3979 case NL80211_IFTYPE_P2P_CLIENT:
3980 case NL80211_IFTYPE_STATION:
3981 if (intbss == wdev->current_bss)
3982 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3983 NL80211_BSS_STATUS_ASSOCIATED);
3984 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3985 if (intbss != wdev->auth_bsses[i])
3987 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3988 NL80211_BSS_STATUS_AUTHENTICATED);
3992 case NL80211_IFTYPE_ADHOC:
3993 if (intbss == wdev->current_bss)
3994 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3995 NL80211_BSS_STATUS_IBSS_JOINED);
4001 nla_nest_end(msg, bss);
4003 return genlmsg_end(msg, hdr);
4006 genlmsg_cancel(msg, hdr);
4010 static int nl80211_dump_scan(struct sk_buff *skb,
4011 struct netlink_callback *cb)
4013 struct cfg80211_registered_device *rdev;
4014 struct net_device *dev;
4015 struct cfg80211_internal_bss *scan;
4016 struct wireless_dev *wdev;
4017 int start = cb->args[1], idx = 0;
4020 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4024 wdev = dev->ieee80211_ptr;
4027 spin_lock_bh(&rdev->bss_lock);
4028 cfg80211_bss_expire(rdev);
4030 cb->seq = rdev->bss_generation;
4032 list_for_each_entry(scan, &rdev->bss_list, list) {
4035 if (nl80211_send_bss(skb, cb,
4036 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4037 rdev, wdev, scan) < 0) {
4043 spin_unlock_bh(&rdev->bss_lock);
4047 nl80211_finish_netdev_dump(rdev);
4052 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4053 int flags, struct net_device *dev,
4054 struct survey_info *survey)
4057 struct nlattr *infoattr;
4059 hdr = nl80211hdr_put(msg, pid, seq, flags,
4060 NL80211_CMD_NEW_SURVEY_RESULTS);
4064 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4066 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4068 goto nla_put_failure;
4070 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4071 survey->channel->center_freq);
4072 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4073 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4075 if (survey->filled & SURVEY_INFO_IN_USE)
4076 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
4077 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4078 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4079 survey->channel_time);
4080 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4081 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4082 survey->channel_time_busy);
4083 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4084 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4085 survey->channel_time_ext_busy);
4086 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4087 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4088 survey->channel_time_rx);
4089 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4090 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4091 survey->channel_time_tx);
4093 nla_nest_end(msg, infoattr);
4095 return genlmsg_end(msg, hdr);
4098 genlmsg_cancel(msg, hdr);
4102 static int nl80211_dump_survey(struct sk_buff *skb,
4103 struct netlink_callback *cb)
4105 struct survey_info survey;
4106 struct cfg80211_registered_device *dev;
4107 struct net_device *netdev;
4108 int survey_idx = cb->args[1];
4111 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4115 if (!dev->ops->dump_survey) {
4121 struct ieee80211_channel *chan;
4123 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4130 /* Survey without a channel doesn't make sense */
4131 if (!survey.channel) {
4136 chan = ieee80211_get_channel(&dev->wiphy,
4137 survey.channel->center_freq);
4138 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4143 if (nl80211_send_survey(skb,
4144 NETLINK_CB(cb->skb).pid,
4145 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4153 cb->args[1] = survey_idx;
4156 nl80211_finish_netdev_dump(dev);
4160 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4162 return auth_type <= NL80211_AUTHTYPE_MAX;
4165 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4167 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4168 NL80211_WPA_VERSION_2));
4171 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4174 struct net_device *dev = info->user_ptr[1];
4175 struct ieee80211_channel *chan;
4176 const u8 *bssid, *ssid, *ie = NULL;
4177 int err, ssid_len, ie_len = 0;
4178 enum nl80211_auth_type auth_type;
4179 struct key_parse key;
4180 bool local_state_change;
4182 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4185 if (!info->attrs[NL80211_ATTR_MAC])
4188 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4191 if (!info->attrs[NL80211_ATTR_SSID])
4194 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4197 err = nl80211_parse_key(info, &key);
4202 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4204 if (!key.p.key || !key.p.key_len)
4206 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4207 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4208 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4209 key.p.key_len != WLAN_KEY_LEN_WEP104))
4221 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4222 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4231 if (!rdev->ops->auth)
4234 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4235 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4238 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4239 chan = ieee80211_get_channel(&rdev->wiphy,
4240 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4241 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4244 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4245 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4247 if (info->attrs[NL80211_ATTR_IE]) {
4248 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4249 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4252 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4253 if (!nl80211_valid_auth_type(auth_type))
4256 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4258 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4259 ssid, ssid_len, ie, ie_len,
4260 key.p.key, key.p.key_len, key.idx,
4261 local_state_change);
4264 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4265 struct genl_info *info,
4266 struct cfg80211_crypto_settings *settings,
4269 memset(settings, 0, sizeof(*settings));
4271 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4273 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4275 proto = nla_get_u16(
4276 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4277 settings->control_port_ethertype = cpu_to_be16(proto);
4278 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4281 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4282 settings->control_port_no_encrypt = true;
4284 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4286 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4290 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4291 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4292 settings->n_ciphers_pairwise = len / sizeof(u32);
4294 if (len % sizeof(u32))
4297 if (settings->n_ciphers_pairwise > cipher_limit)
4300 memcpy(settings->ciphers_pairwise, data, len);
4302 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4303 if (!cfg80211_supported_cipher_suite(
4305 settings->ciphers_pairwise[i]))
4309 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4310 settings->cipher_group =
4311 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4312 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4313 settings->cipher_group))
4317 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4318 settings->wpa_versions =
4319 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4320 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4324 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4328 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4329 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4330 settings->n_akm_suites = len / sizeof(u32);
4332 if (len % sizeof(u32))
4335 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4338 memcpy(settings->akm_suites, data, len);
4344 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4347 struct net_device *dev = info->user_ptr[1];
4348 struct cfg80211_crypto_settings crypto;
4349 struct ieee80211_channel *chan;
4350 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4351 int err, ssid_len, ie_len = 0;
4352 bool use_mfp = false;
4354 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4357 if (!info->attrs[NL80211_ATTR_MAC] ||
4358 !info->attrs[NL80211_ATTR_SSID] ||
4359 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4362 if (!rdev->ops->assoc)
4365 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4366 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4369 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4371 chan = ieee80211_get_channel(&rdev->wiphy,
4372 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4373 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4376 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4377 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4379 if (info->attrs[NL80211_ATTR_IE]) {
4380 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4381 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4384 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4385 enum nl80211_mfp mfp =
4386 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4387 if (mfp == NL80211_MFP_REQUIRED)
4389 else if (mfp != NL80211_MFP_NO)
4393 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4394 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4396 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4398 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4399 ssid, ssid_len, ie, ie_len, use_mfp,
4405 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4408 struct net_device *dev = info->user_ptr[1];
4409 const u8 *ie = NULL, *bssid;
4412 bool local_state_change;
4414 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4417 if (!info->attrs[NL80211_ATTR_MAC])
4420 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4423 if (!rdev->ops->deauth)
4426 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4427 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4430 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4432 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4433 if (reason_code == 0) {
4434 /* Reason Code 0 is reserved */
4438 if (info->attrs[NL80211_ATTR_IE]) {
4439 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4440 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4443 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4445 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4446 local_state_change);
4449 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4452 struct net_device *dev = info->user_ptr[1];
4453 const u8 *ie = NULL, *bssid;
4456 bool local_state_change;
4458 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4461 if (!info->attrs[NL80211_ATTR_MAC])
4464 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4467 if (!rdev->ops->disassoc)
4470 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4471 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4474 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4476 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4477 if (reason_code == 0) {
4478 /* Reason Code 0 is reserved */
4482 if (info->attrs[NL80211_ATTR_IE]) {
4483 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4484 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4487 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4489 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4490 local_state_change);
4494 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4495 int mcast_rate[IEEE80211_NUM_BANDS],
4498 struct wiphy *wiphy = &rdev->wiphy;
4502 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4503 struct ieee80211_supported_band *sband;
4505 sband = wiphy->bands[band];
4509 for (i = 0; i < sband->n_bitrates; i++) {
4510 if (sband->bitrates[i].bitrate == rateval) {
4511 mcast_rate[band] = i + 1;
4521 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4524 struct net_device *dev = info->user_ptr[1];
4525 struct cfg80211_ibss_params ibss;
4526 struct wiphy *wiphy;
4527 struct cfg80211_cached_keys *connkeys = NULL;
4530 memset(&ibss, 0, sizeof(ibss));
4532 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4535 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4536 !info->attrs[NL80211_ATTR_SSID] ||
4537 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4540 ibss.beacon_interval = 100;
4542 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4543 ibss.beacon_interval =
4544 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4545 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4549 if (!rdev->ops->join_ibss)
4552 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4555 wiphy = &rdev->wiphy;
4557 if (info->attrs[NL80211_ATTR_MAC]) {
4558 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4560 if (!is_valid_ether_addr(ibss.bssid))
4563 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4564 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4566 if (info->attrs[NL80211_ATTR_IE]) {
4567 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4568 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4571 ibss.channel = ieee80211_get_channel(wiphy,
4572 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4573 if (!ibss.channel ||
4574 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4575 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4578 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4579 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4581 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4583 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4585 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4586 struct ieee80211_supported_band *sband =
4587 wiphy->bands[ibss.channel->band];
4590 err = ieee80211_get_ratemask(sband, rates, n_rates,
4596 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4597 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4598 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4601 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4602 connkeys = nl80211_parse_connkeys(rdev,
4603 info->attrs[NL80211_ATTR_KEYS]);
4604 if (IS_ERR(connkeys))
4605 return PTR_ERR(connkeys);
4608 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4614 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4617 struct net_device *dev = info->user_ptr[1];
4619 if (!rdev->ops->leave_ibss)
4622 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4625 return cfg80211_leave_ibss(rdev, dev, false);
4628 #ifdef CONFIG_NL80211_TESTMODE
4629 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4633 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4635 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4638 if (!info->attrs[NL80211_ATTR_TESTDATA])
4642 if (rdev->ops->testmode_cmd) {
4643 rdev->testmode_info = info;
4644 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4645 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4646 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4647 rdev->testmode_info = NULL;
4653 static int nl80211_testmode_dump(struct sk_buff *skb,
4654 struct netlink_callback *cb)
4656 struct cfg80211_registered_device *dev;
4664 * 0 is a valid index, but not valid for args[0],
4665 * so we need to offset by 1.
4667 phy_idx = cb->args[0] - 1;
4669 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4670 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4674 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4676 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4677 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4679 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4683 data = nla_data((void *)cb->args[1]);
4684 data_len = nla_len((void *)cb->args[1]);
4687 mutex_lock(&cfg80211_mutex);
4688 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4690 mutex_unlock(&cfg80211_mutex);
4693 cfg80211_lock_rdev(dev);
4694 mutex_unlock(&cfg80211_mutex);
4696 if (!dev->ops->testmode_dump) {
4702 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4703 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4704 NL80211_CMD_TESTMODE);
4705 struct nlattr *tmdata;
4707 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4708 genlmsg_cancel(skb, hdr);
4712 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4714 genlmsg_cancel(skb, hdr);
4717 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4719 nla_nest_end(skb, tmdata);
4721 if (err == -ENOBUFS || err == -ENOENT) {
4722 genlmsg_cancel(skb, hdr);
4725 genlmsg_cancel(skb, hdr);
4729 genlmsg_end(skb, hdr);
4734 cb->args[0] = phy_idx + 1;
4736 cfg80211_unlock_rdev(dev);
4740 static struct sk_buff *
4741 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4742 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4744 struct sk_buff *skb;
4746 struct nlattr *data;
4748 skb = nlmsg_new(approxlen + 100, gfp);
4752 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4758 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4759 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4761 ((void **)skb->cb)[0] = rdev;
4762 ((void **)skb->cb)[1] = hdr;
4763 ((void **)skb->cb)[2] = data;
4772 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4775 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4777 if (WARN_ON(!rdev->testmode_info))
4780 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4781 rdev->testmode_info->snd_pid,
4782 rdev->testmode_info->snd_seq,
4785 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4787 int cfg80211_testmode_reply(struct sk_buff *skb)
4789 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4790 void *hdr = ((void **)skb->cb)[1];
4791 struct nlattr *data = ((void **)skb->cb)[2];
4793 if (WARN_ON(!rdev->testmode_info)) {
4798 nla_nest_end(skb, data);
4799 genlmsg_end(skb, hdr);
4800 return genlmsg_reply(skb, rdev->testmode_info);
4802 EXPORT_SYMBOL(cfg80211_testmode_reply);
4804 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4805 int approxlen, gfp_t gfp)
4807 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4809 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4811 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4813 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4815 void *hdr = ((void **)skb->cb)[1];
4816 struct nlattr *data = ((void **)skb->cb)[2];
4818 nla_nest_end(skb, data);
4819 genlmsg_end(skb, hdr);
4820 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4822 EXPORT_SYMBOL(cfg80211_testmode_event);
4825 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4828 struct net_device *dev = info->user_ptr[1];
4829 struct cfg80211_connect_params connect;
4830 struct wiphy *wiphy;
4831 struct cfg80211_cached_keys *connkeys = NULL;
4834 memset(&connect, 0, sizeof(connect));
4836 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4839 if (!info->attrs[NL80211_ATTR_SSID] ||
4840 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4843 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4845 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4846 if (!nl80211_valid_auth_type(connect.auth_type))
4849 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4851 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4853 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
4854 NL80211_MAX_NR_CIPHER_SUITES);
4858 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4859 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4862 wiphy = &rdev->wiphy;
4864 if (info->attrs[NL80211_ATTR_MAC])
4865 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4866 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4867 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4869 if (info->attrs[NL80211_ATTR_IE]) {
4870 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4871 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4874 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4876 ieee80211_get_channel(wiphy,
4877 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4878 if (!connect.channel ||
4879 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4883 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4884 connkeys = nl80211_parse_connkeys(rdev,
4885 info->attrs[NL80211_ATTR_KEYS]);
4886 if (IS_ERR(connkeys))
4887 return PTR_ERR(connkeys);
4890 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4896 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4899 struct net_device *dev = info->user_ptr[1];
4902 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4903 reason = WLAN_REASON_DEAUTH_LEAVING;
4905 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4910 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4911 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4914 return cfg80211_disconnect(rdev, dev, reason, true);
4917 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4924 if (!info->attrs[NL80211_ATTR_PID])
4927 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4929 net = get_net_ns_by_pid(pid);
4931 return PTR_ERR(net);
4935 /* check if anything to do */
4936 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4937 err = cfg80211_switch_netns(rdev, net);
4943 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4946 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4947 struct cfg80211_pmksa *pmksa) = NULL;
4948 struct net_device *dev = info->user_ptr[1];
4949 struct cfg80211_pmksa pmksa;
4951 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4953 if (!info->attrs[NL80211_ATTR_MAC])
4956 if (!info->attrs[NL80211_ATTR_PMKID])
4959 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4960 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4962 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4963 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4966 switch (info->genlhdr->cmd) {
4967 case NL80211_CMD_SET_PMKSA:
4968 rdev_ops = rdev->ops->set_pmksa;
4970 case NL80211_CMD_DEL_PMKSA:
4971 rdev_ops = rdev->ops->del_pmksa;
4981 return rdev_ops(&rdev->wiphy, dev, &pmksa);
4984 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4987 struct net_device *dev = info->user_ptr[1];
4989 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4990 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4993 if (!rdev->ops->flush_pmksa)
4996 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4999 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5002 struct net_device *dev = info->user_ptr[1];
5003 u8 action_code, dialog_token;
5007 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5008 !rdev->ops->tdls_mgmt)
5011 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5012 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5013 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5014 !info->attrs[NL80211_ATTR_IE] ||
5015 !info->attrs[NL80211_ATTR_MAC])
5018 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5019 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5020 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5021 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5023 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5024 dialog_token, status_code,
5025 nla_data(info->attrs[NL80211_ATTR_IE]),
5026 nla_len(info->attrs[NL80211_ATTR_IE]));
5029 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5032 struct net_device *dev = info->user_ptr[1];
5033 enum nl80211_tdls_operation operation;
5036 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5037 !rdev->ops->tdls_oper)
5040 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5041 !info->attrs[NL80211_ATTR_MAC])
5044 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5045 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5047 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5050 static int nl80211_remain_on_channel(struct sk_buff *skb,
5051 struct genl_info *info)
5053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5054 struct net_device *dev = info->user_ptr[1];
5055 struct ieee80211_channel *chan;
5056 struct sk_buff *msg;
5059 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5063 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5064 !info->attrs[NL80211_ATTR_DURATION])
5067 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5070 * We should be on that channel for at least one jiffie,
5071 * and more than 5 seconds seems excessive.
5073 if (!duration || !msecs_to_jiffies(duration) ||
5074 duration > rdev->wiphy.max_remain_on_channel_duration)
5077 if (!rdev->ops->remain_on_channel)
5080 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5081 channel_type = nla_get_u32(
5082 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5083 if (channel_type != NL80211_CHAN_NO_HT &&
5084 channel_type != NL80211_CHAN_HT20 &&
5085 channel_type != NL80211_CHAN_HT40PLUS &&
5086 channel_type != NL80211_CHAN_HT40MINUS)
5090 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5091 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5095 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5099 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5100 NL80211_CMD_REMAIN_ON_CHANNEL);
5107 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5108 channel_type, duration, &cookie);
5113 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5115 genlmsg_end(msg, hdr);
5117 return genlmsg_reply(msg, info);
5126 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5127 struct genl_info *info)
5129 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5130 struct net_device *dev = info->user_ptr[1];
5133 if (!info->attrs[NL80211_ATTR_COOKIE])
5136 if (!rdev->ops->cancel_remain_on_channel)
5139 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5141 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5144 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5145 u8 *rates, u8 rates_len)
5150 for (i = 0; i < rates_len; i++) {
5151 int rate = (rates[i] & 0x7f) * 5;
5153 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5154 struct ieee80211_rate *srate =
5155 &sband->bitrates[ridx];
5156 if (rate == srate->bitrate) {
5161 if (ridx == sband->n_bitrates)
5162 return 0; /* rate not found */
5168 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5169 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5170 .len = NL80211_MAX_SUPP_RATES },
5173 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5174 struct genl_info *info)
5176 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5178 struct cfg80211_bitrate_mask mask;
5180 struct net_device *dev = info->user_ptr[1];
5181 struct nlattr *tx_rates;
5182 struct ieee80211_supported_band *sband;
5184 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5187 if (!rdev->ops->set_bitrate_mask)
5190 memset(&mask, 0, sizeof(mask));
5191 /* Default to all rates enabled */
5192 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5193 sband = rdev->wiphy.bands[i];
5194 mask.control[i].legacy =
5195 sband ? (1 << sband->n_bitrates) - 1 : 0;
5199 * The nested attribute uses enum nl80211_band as the index. This maps
5200 * directly to the enum ieee80211_band values used in cfg80211.
5202 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5204 enum ieee80211_band band = nla_type(tx_rates);
5205 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5207 sband = rdev->wiphy.bands[band];
5210 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5211 nla_len(tx_rates), nl80211_txattr_policy);
5212 if (tb[NL80211_TXRATE_LEGACY]) {
5213 mask.control[band].legacy = rateset_to_mask(
5215 nla_data(tb[NL80211_TXRATE_LEGACY]),
5216 nla_len(tb[NL80211_TXRATE_LEGACY]));
5217 if (mask.control[band].legacy == 0)
5222 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5225 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5228 struct net_device *dev = info->user_ptr[1];
5229 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5231 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5234 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5235 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5237 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5238 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5239 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5240 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5241 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5242 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5243 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5246 /* not much point in registering if we can't reply */
5247 if (!rdev->ops->mgmt_tx)
5250 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5252 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5253 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5256 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5259 struct net_device *dev = info->user_ptr[1];
5260 struct ieee80211_channel *chan;
5261 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5262 bool channel_type_valid = false;
5267 struct sk_buff *msg;
5268 unsigned int wait = 0;
5272 if (!info->attrs[NL80211_ATTR_FRAME] ||
5273 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5276 if (!rdev->ops->mgmt_tx)
5279 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5280 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5281 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5282 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5283 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5284 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5285 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5288 if (info->attrs[NL80211_ATTR_DURATION]) {
5289 if (!rdev->ops->mgmt_tx_cancel_wait)
5291 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5294 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5295 channel_type = nla_get_u32(
5296 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5297 if (channel_type != NL80211_CHAN_NO_HT &&
5298 channel_type != NL80211_CHAN_HT20 &&
5299 channel_type != NL80211_CHAN_HT40PLUS &&
5300 channel_type != NL80211_CHAN_HT40MINUS)
5302 channel_type_valid = true;
5305 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5307 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5309 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5310 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5314 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5318 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5325 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5326 channel_type_valid, wait,
5327 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5328 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5333 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5335 genlmsg_end(msg, hdr);
5336 return genlmsg_reply(msg, info);
5345 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5348 struct net_device *dev = info->user_ptr[1];
5351 if (!info->attrs[NL80211_ATTR_COOKIE])
5354 if (!rdev->ops->mgmt_tx_cancel_wait)
5357 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5358 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5359 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5360 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5361 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5365 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5367 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5370 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5373 struct wireless_dev *wdev;
5374 struct net_device *dev = info->user_ptr[1];
5379 if (!info->attrs[NL80211_ATTR_PS_STATE])
5382 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5384 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5387 wdev = dev->ieee80211_ptr;
5389 if (!rdev->ops->set_power_mgmt)
5392 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5394 if (state == wdev->ps)
5397 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5404 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5407 enum nl80211_ps_state ps_state;
5408 struct wireless_dev *wdev;
5409 struct net_device *dev = info->user_ptr[1];
5410 struct sk_buff *msg;
5414 wdev = dev->ieee80211_ptr;
5416 if (!rdev->ops->set_power_mgmt)
5419 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5423 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5424 NL80211_CMD_GET_POWER_SAVE);
5431 ps_state = NL80211_PS_ENABLED;
5433 ps_state = NL80211_PS_DISABLED;
5435 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5437 genlmsg_end(msg, hdr);
5438 return genlmsg_reply(msg, info);
5447 static struct nla_policy
5448 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5449 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5450 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5451 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5454 static int nl80211_set_cqm_rssi(struct genl_info *info,
5455 s32 threshold, u32 hysteresis)
5457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5458 struct wireless_dev *wdev;
5459 struct net_device *dev = info->user_ptr[1];
5464 wdev = dev->ieee80211_ptr;
5466 if (!rdev->ops->set_cqm_rssi_config)
5469 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5470 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5473 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5474 threshold, hysteresis);
5477 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5479 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5483 cqm = info->attrs[NL80211_ATTR_CQM];
5489 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5490 nl80211_attr_cqm_policy);
5494 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5495 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5498 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5499 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5500 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5508 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5511 struct net_device *dev = info->user_ptr[1];
5512 struct mesh_config cfg;
5513 struct mesh_setup setup;
5516 /* start with default */
5517 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5518 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5520 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5521 /* and parse parameters if given */
5522 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5527 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5528 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5531 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5532 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5534 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5535 /* parse additional setup parameters if given */
5536 err = nl80211_parse_mesh_setup(info, &setup);
5541 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5544 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5547 struct net_device *dev = info->user_ptr[1];
5549 return cfg80211_leave_mesh(rdev, dev);
5552 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5555 struct sk_buff *msg;
5558 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5561 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5565 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5566 NL80211_CMD_GET_WOWLAN);
5568 goto nla_put_failure;
5571 struct nlattr *nl_wowlan;
5573 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5575 goto nla_put_failure;
5577 if (rdev->wowlan->any)
5578 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5579 if (rdev->wowlan->disconnect)
5580 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5581 if (rdev->wowlan->magic_pkt)
5582 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5583 if (rdev->wowlan->gtk_rekey_failure)
5584 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5585 if (rdev->wowlan->eap_identity_req)
5586 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5587 if (rdev->wowlan->four_way_handshake)
5588 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5589 if (rdev->wowlan->rfkill_release)
5590 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
5591 if (rdev->wowlan->n_patterns) {
5592 struct nlattr *nl_pats, *nl_pat;
5595 nl_pats = nla_nest_start(msg,
5596 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5598 goto nla_put_failure;
5600 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5601 nl_pat = nla_nest_start(msg, i + 1);
5603 goto nla_put_failure;
5604 pat_len = rdev->wowlan->patterns[i].pattern_len;
5605 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5606 DIV_ROUND_UP(pat_len, 8),
5607 rdev->wowlan->patterns[i].mask);
5608 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5610 rdev->wowlan->patterns[i].pattern);
5611 nla_nest_end(msg, nl_pat);
5613 nla_nest_end(msg, nl_pats);
5616 nla_nest_end(msg, nl_wowlan);
5619 genlmsg_end(msg, hdr);
5620 return genlmsg_reply(msg, info);
5627 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5630 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5631 struct cfg80211_wowlan no_triggers = {};
5632 struct cfg80211_wowlan new_triggers = {};
5633 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5636 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5639 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5642 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5643 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5644 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5645 nl80211_wowlan_policy);
5649 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5650 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5652 new_triggers.any = true;
5655 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5656 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5658 new_triggers.disconnect = true;
5661 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5662 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5664 new_triggers.magic_pkt = true;
5667 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5670 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5671 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5673 new_triggers.gtk_rekey_failure = true;
5676 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5677 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5679 new_triggers.eap_identity_req = true;
5682 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5683 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5685 new_triggers.four_way_handshake = true;
5688 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5689 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5691 new_triggers.rfkill_release = true;
5694 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5697 int rem, pat_len, mask_len;
5698 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5700 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5703 if (n_patterns > wowlan->n_patterns)
5706 new_triggers.patterns = kcalloc(n_patterns,
5707 sizeof(new_triggers.patterns[0]),
5709 if (!new_triggers.patterns)
5712 new_triggers.n_patterns = n_patterns;
5715 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5717 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5718 nla_data(pat), nla_len(pat), NULL);
5720 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5721 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5723 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5724 mask_len = DIV_ROUND_UP(pat_len, 8);
5725 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5728 if (pat_len > wowlan->pattern_max_len ||
5729 pat_len < wowlan->pattern_min_len)
5732 new_triggers.patterns[i].mask =
5733 kmalloc(mask_len + pat_len, GFP_KERNEL);
5734 if (!new_triggers.patterns[i].mask) {
5738 new_triggers.patterns[i].pattern =
5739 new_triggers.patterns[i].mask + mask_len;
5740 memcpy(new_triggers.patterns[i].mask,
5741 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5743 new_triggers.patterns[i].pattern_len = pat_len;
5744 memcpy(new_triggers.patterns[i].pattern,
5745 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5751 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5752 struct cfg80211_wowlan *ntrig;
5753 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5759 cfg80211_rdev_free_wowlan(rdev);
5760 rdev->wowlan = ntrig;
5763 cfg80211_rdev_free_wowlan(rdev);
5764 rdev->wowlan = NULL;
5769 for (i = 0; i < new_triggers.n_patterns; i++)
5770 kfree(new_triggers.patterns[i].mask);
5771 kfree(new_triggers.patterns);
5775 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5778 struct net_device *dev = info->user_ptr[1];
5779 struct wireless_dev *wdev = dev->ieee80211_ptr;
5780 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5781 struct cfg80211_gtk_rekey_data rekey_data;
5784 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5787 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5788 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5789 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5790 nl80211_rekey_policy);
5794 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5796 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5798 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5801 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5803 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5805 memcpy(rekey_data.replay_ctr,
5806 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5807 NL80211_REPLAY_CTR_LEN);
5810 if (!wdev->current_bss) {
5815 if (!rdev->ops->set_rekey_data) {
5820 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5826 #define NL80211_FLAG_NEED_WIPHY 0x01
5827 #define NL80211_FLAG_NEED_NETDEV 0x02
5828 #define NL80211_FLAG_NEED_RTNL 0x04
5829 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5830 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5831 NL80211_FLAG_CHECK_NETDEV_UP)
5833 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5834 struct genl_info *info)
5836 struct cfg80211_registered_device *rdev;
5837 struct net_device *dev;
5839 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5844 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5845 rdev = cfg80211_get_dev_from_info(info);
5849 return PTR_ERR(rdev);
5851 info->user_ptr[0] = rdev;
5852 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5853 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5859 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5860 !netif_running(dev)) {
5861 cfg80211_unlock_rdev(rdev);
5867 info->user_ptr[0] = rdev;
5868 info->user_ptr[1] = dev;
5874 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5875 struct genl_info *info)
5877 if (info->user_ptr[0])
5878 cfg80211_unlock_rdev(info->user_ptr[0]);
5879 if (info->user_ptr[1])
5880 dev_put(info->user_ptr[1]);
5881 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5885 static struct genl_ops nl80211_ops[] = {
5887 .cmd = NL80211_CMD_GET_WIPHY,
5888 .doit = nl80211_get_wiphy,
5889 .dumpit = nl80211_dump_wiphy,
5890 .policy = nl80211_policy,
5891 /* can be retrieved by unprivileged users */
5892 .internal_flags = NL80211_FLAG_NEED_WIPHY,
5895 .cmd = NL80211_CMD_SET_WIPHY,
5896 .doit = nl80211_set_wiphy,
5897 .policy = nl80211_policy,
5898 .flags = GENL_ADMIN_PERM,
5899 .internal_flags = NL80211_FLAG_NEED_RTNL,
5902 .cmd = NL80211_CMD_GET_INTERFACE,
5903 .doit = nl80211_get_interface,
5904 .dumpit = nl80211_dump_interface,
5905 .policy = nl80211_policy,
5906 /* can be retrieved by unprivileged users */
5907 .internal_flags = NL80211_FLAG_NEED_NETDEV,
5910 .cmd = NL80211_CMD_SET_INTERFACE,
5911 .doit = nl80211_set_interface,
5912 .policy = nl80211_policy,
5913 .flags = GENL_ADMIN_PERM,
5914 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5915 NL80211_FLAG_NEED_RTNL,
5918 .cmd = NL80211_CMD_NEW_INTERFACE,
5919 .doit = nl80211_new_interface,
5920 .policy = nl80211_policy,
5921 .flags = GENL_ADMIN_PERM,
5922 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5923 NL80211_FLAG_NEED_RTNL,
5926 .cmd = NL80211_CMD_DEL_INTERFACE,
5927 .doit = nl80211_del_interface,
5928 .policy = nl80211_policy,
5929 .flags = GENL_ADMIN_PERM,
5930 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5931 NL80211_FLAG_NEED_RTNL,
5934 .cmd = NL80211_CMD_GET_KEY,
5935 .doit = nl80211_get_key,
5936 .policy = nl80211_policy,
5937 .flags = GENL_ADMIN_PERM,
5938 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5939 NL80211_FLAG_NEED_RTNL,
5942 .cmd = NL80211_CMD_SET_KEY,
5943 .doit = nl80211_set_key,
5944 .policy = nl80211_policy,
5945 .flags = GENL_ADMIN_PERM,
5946 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5947 NL80211_FLAG_NEED_RTNL,
5950 .cmd = NL80211_CMD_NEW_KEY,
5951 .doit = nl80211_new_key,
5952 .policy = nl80211_policy,
5953 .flags = GENL_ADMIN_PERM,
5954 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5955 NL80211_FLAG_NEED_RTNL,
5958 .cmd = NL80211_CMD_DEL_KEY,
5959 .doit = nl80211_del_key,
5960 .policy = nl80211_policy,
5961 .flags = GENL_ADMIN_PERM,
5962 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5963 NL80211_FLAG_NEED_RTNL,
5966 .cmd = NL80211_CMD_SET_BEACON,
5967 .policy = nl80211_policy,
5968 .flags = GENL_ADMIN_PERM,
5969 .doit = nl80211_addset_beacon,
5970 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5971 NL80211_FLAG_NEED_RTNL,
5974 .cmd = NL80211_CMD_NEW_BEACON,
5975 .policy = nl80211_policy,
5976 .flags = GENL_ADMIN_PERM,
5977 .doit = nl80211_addset_beacon,
5978 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5979 NL80211_FLAG_NEED_RTNL,
5982 .cmd = NL80211_CMD_DEL_BEACON,
5983 .policy = nl80211_policy,
5984 .flags = GENL_ADMIN_PERM,
5985 .doit = nl80211_del_beacon,
5986 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5987 NL80211_FLAG_NEED_RTNL,
5990 .cmd = NL80211_CMD_GET_STATION,
5991 .doit = nl80211_get_station,
5992 .dumpit = nl80211_dump_station,
5993 .policy = nl80211_policy,
5994 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5995 NL80211_FLAG_NEED_RTNL,
5998 .cmd = NL80211_CMD_SET_STATION,
5999 .doit = nl80211_set_station,
6000 .policy = nl80211_policy,
6001 .flags = GENL_ADMIN_PERM,
6002 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6003 NL80211_FLAG_NEED_RTNL,
6006 .cmd = NL80211_CMD_NEW_STATION,
6007 .doit = nl80211_new_station,
6008 .policy = nl80211_policy,
6009 .flags = GENL_ADMIN_PERM,
6010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6011 NL80211_FLAG_NEED_RTNL,
6014 .cmd = NL80211_CMD_DEL_STATION,
6015 .doit = nl80211_del_station,
6016 .policy = nl80211_policy,
6017 .flags = GENL_ADMIN_PERM,
6018 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6019 NL80211_FLAG_NEED_RTNL,
6022 .cmd = NL80211_CMD_GET_MPATH,
6023 .doit = nl80211_get_mpath,
6024 .dumpit = nl80211_dump_mpath,
6025 .policy = nl80211_policy,
6026 .flags = GENL_ADMIN_PERM,
6027 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6028 NL80211_FLAG_NEED_RTNL,
6031 .cmd = NL80211_CMD_SET_MPATH,
6032 .doit = nl80211_set_mpath,
6033 .policy = nl80211_policy,
6034 .flags = GENL_ADMIN_PERM,
6035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6036 NL80211_FLAG_NEED_RTNL,
6039 .cmd = NL80211_CMD_NEW_MPATH,
6040 .doit = nl80211_new_mpath,
6041 .policy = nl80211_policy,
6042 .flags = GENL_ADMIN_PERM,
6043 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6044 NL80211_FLAG_NEED_RTNL,
6047 .cmd = NL80211_CMD_DEL_MPATH,
6048 .doit = nl80211_del_mpath,
6049 .policy = nl80211_policy,
6050 .flags = GENL_ADMIN_PERM,
6051 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6052 NL80211_FLAG_NEED_RTNL,
6055 .cmd = NL80211_CMD_SET_BSS,
6056 .doit = nl80211_set_bss,
6057 .policy = nl80211_policy,
6058 .flags = GENL_ADMIN_PERM,
6059 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6060 NL80211_FLAG_NEED_RTNL,
6063 .cmd = NL80211_CMD_GET_REG,
6064 .doit = nl80211_get_reg,
6065 .policy = nl80211_policy,
6066 /* can be retrieved by unprivileged users */
6069 .cmd = NL80211_CMD_SET_REG,
6070 .doit = nl80211_set_reg,
6071 .policy = nl80211_policy,
6072 .flags = GENL_ADMIN_PERM,
6075 .cmd = NL80211_CMD_REQ_SET_REG,
6076 .doit = nl80211_req_set_reg,
6077 .policy = nl80211_policy,
6078 .flags = GENL_ADMIN_PERM,
6081 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6082 .doit = nl80211_get_mesh_config,
6083 .policy = nl80211_policy,
6084 /* can be retrieved by unprivileged users */
6085 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6086 NL80211_FLAG_NEED_RTNL,
6089 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6090 .doit = nl80211_update_mesh_config,
6091 .policy = nl80211_policy,
6092 .flags = GENL_ADMIN_PERM,
6093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6094 NL80211_FLAG_NEED_RTNL,
6097 .cmd = NL80211_CMD_TRIGGER_SCAN,
6098 .doit = nl80211_trigger_scan,
6099 .policy = nl80211_policy,
6100 .flags = GENL_ADMIN_PERM,
6101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6102 NL80211_FLAG_NEED_RTNL,
6105 .cmd = NL80211_CMD_GET_SCAN,
6106 .policy = nl80211_policy,
6107 .dumpit = nl80211_dump_scan,
6110 .cmd = NL80211_CMD_START_SCHED_SCAN,
6111 .doit = nl80211_start_sched_scan,
6112 .policy = nl80211_policy,
6113 .flags = GENL_ADMIN_PERM,
6114 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6115 NL80211_FLAG_NEED_RTNL,
6118 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6119 .doit = nl80211_stop_sched_scan,
6120 .policy = nl80211_policy,
6121 .flags = GENL_ADMIN_PERM,
6122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6123 NL80211_FLAG_NEED_RTNL,
6126 .cmd = NL80211_CMD_AUTHENTICATE,
6127 .doit = nl80211_authenticate,
6128 .policy = nl80211_policy,
6129 .flags = GENL_ADMIN_PERM,
6130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6131 NL80211_FLAG_NEED_RTNL,
6134 .cmd = NL80211_CMD_ASSOCIATE,
6135 .doit = nl80211_associate,
6136 .policy = nl80211_policy,
6137 .flags = GENL_ADMIN_PERM,
6138 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6139 NL80211_FLAG_NEED_RTNL,
6142 .cmd = NL80211_CMD_DEAUTHENTICATE,
6143 .doit = nl80211_deauthenticate,
6144 .policy = nl80211_policy,
6145 .flags = GENL_ADMIN_PERM,
6146 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6147 NL80211_FLAG_NEED_RTNL,
6150 .cmd = NL80211_CMD_DISASSOCIATE,
6151 .doit = nl80211_disassociate,
6152 .policy = nl80211_policy,
6153 .flags = GENL_ADMIN_PERM,
6154 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6155 NL80211_FLAG_NEED_RTNL,
6158 .cmd = NL80211_CMD_JOIN_IBSS,
6159 .doit = nl80211_join_ibss,
6160 .policy = nl80211_policy,
6161 .flags = GENL_ADMIN_PERM,
6162 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6163 NL80211_FLAG_NEED_RTNL,
6166 .cmd = NL80211_CMD_LEAVE_IBSS,
6167 .doit = nl80211_leave_ibss,
6168 .policy = nl80211_policy,
6169 .flags = GENL_ADMIN_PERM,
6170 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6171 NL80211_FLAG_NEED_RTNL,
6173 #ifdef CONFIG_NL80211_TESTMODE
6175 .cmd = NL80211_CMD_TESTMODE,
6176 .doit = nl80211_testmode_do,
6177 .dumpit = nl80211_testmode_dump,
6178 .policy = nl80211_policy,
6179 .flags = GENL_ADMIN_PERM,
6180 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6181 NL80211_FLAG_NEED_RTNL,
6185 .cmd = NL80211_CMD_CONNECT,
6186 .doit = nl80211_connect,
6187 .policy = nl80211_policy,
6188 .flags = GENL_ADMIN_PERM,
6189 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6190 NL80211_FLAG_NEED_RTNL,
6193 .cmd = NL80211_CMD_DISCONNECT,
6194 .doit = nl80211_disconnect,
6195 .policy = nl80211_policy,
6196 .flags = GENL_ADMIN_PERM,
6197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6198 NL80211_FLAG_NEED_RTNL,
6201 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6202 .doit = nl80211_wiphy_netns,
6203 .policy = nl80211_policy,
6204 .flags = GENL_ADMIN_PERM,
6205 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6206 NL80211_FLAG_NEED_RTNL,
6209 .cmd = NL80211_CMD_GET_SURVEY,
6210 .policy = nl80211_policy,
6211 .dumpit = nl80211_dump_survey,
6214 .cmd = NL80211_CMD_SET_PMKSA,
6215 .doit = nl80211_setdel_pmksa,
6216 .policy = nl80211_policy,
6217 .flags = GENL_ADMIN_PERM,
6218 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6219 NL80211_FLAG_NEED_RTNL,
6222 .cmd = NL80211_CMD_DEL_PMKSA,
6223 .doit = nl80211_setdel_pmksa,
6224 .policy = nl80211_policy,
6225 .flags = GENL_ADMIN_PERM,
6226 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6227 NL80211_FLAG_NEED_RTNL,
6230 .cmd = NL80211_CMD_FLUSH_PMKSA,
6231 .doit = nl80211_flush_pmksa,
6232 .policy = nl80211_policy,
6233 .flags = GENL_ADMIN_PERM,
6234 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6235 NL80211_FLAG_NEED_RTNL,
6238 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6239 .doit = nl80211_remain_on_channel,
6240 .policy = nl80211_policy,
6241 .flags = GENL_ADMIN_PERM,
6242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6243 NL80211_FLAG_NEED_RTNL,
6246 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6247 .doit = nl80211_cancel_remain_on_channel,
6248 .policy = nl80211_policy,
6249 .flags = GENL_ADMIN_PERM,
6250 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6251 NL80211_FLAG_NEED_RTNL,
6254 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6255 .doit = nl80211_set_tx_bitrate_mask,
6256 .policy = nl80211_policy,
6257 .flags = GENL_ADMIN_PERM,
6258 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6259 NL80211_FLAG_NEED_RTNL,
6262 .cmd = NL80211_CMD_REGISTER_FRAME,
6263 .doit = nl80211_register_mgmt,
6264 .policy = nl80211_policy,
6265 .flags = GENL_ADMIN_PERM,
6266 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6267 NL80211_FLAG_NEED_RTNL,
6270 .cmd = NL80211_CMD_FRAME,
6271 .doit = nl80211_tx_mgmt,
6272 .policy = nl80211_policy,
6273 .flags = GENL_ADMIN_PERM,
6274 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6275 NL80211_FLAG_NEED_RTNL,
6278 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6279 .doit = nl80211_tx_mgmt_cancel_wait,
6280 .policy = nl80211_policy,
6281 .flags = GENL_ADMIN_PERM,
6282 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6283 NL80211_FLAG_NEED_RTNL,
6286 .cmd = NL80211_CMD_SET_POWER_SAVE,
6287 .doit = nl80211_set_power_save,
6288 .policy = nl80211_policy,
6289 .flags = GENL_ADMIN_PERM,
6290 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6291 NL80211_FLAG_NEED_RTNL,
6294 .cmd = NL80211_CMD_GET_POWER_SAVE,
6295 .doit = nl80211_get_power_save,
6296 .policy = nl80211_policy,
6297 /* can be retrieved by unprivileged users */
6298 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6299 NL80211_FLAG_NEED_RTNL,
6302 .cmd = NL80211_CMD_SET_CQM,
6303 .doit = nl80211_set_cqm,
6304 .policy = nl80211_policy,
6305 .flags = GENL_ADMIN_PERM,
6306 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6307 NL80211_FLAG_NEED_RTNL,
6310 .cmd = NL80211_CMD_SET_CHANNEL,
6311 .doit = nl80211_set_channel,
6312 .policy = nl80211_policy,
6313 .flags = GENL_ADMIN_PERM,
6314 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6315 NL80211_FLAG_NEED_RTNL,
6318 .cmd = NL80211_CMD_SET_WDS_PEER,
6319 .doit = nl80211_set_wds_peer,
6320 .policy = nl80211_policy,
6321 .flags = GENL_ADMIN_PERM,
6322 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6323 NL80211_FLAG_NEED_RTNL,
6326 .cmd = NL80211_CMD_JOIN_MESH,
6327 .doit = nl80211_join_mesh,
6328 .policy = nl80211_policy,
6329 .flags = GENL_ADMIN_PERM,
6330 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6331 NL80211_FLAG_NEED_RTNL,
6334 .cmd = NL80211_CMD_LEAVE_MESH,
6335 .doit = nl80211_leave_mesh,
6336 .policy = nl80211_policy,
6337 .flags = GENL_ADMIN_PERM,
6338 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6339 NL80211_FLAG_NEED_RTNL,
6342 .cmd = NL80211_CMD_GET_WOWLAN,
6343 .doit = nl80211_get_wowlan,
6344 .policy = nl80211_policy,
6345 /* can be retrieved by unprivileged users */
6346 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6347 NL80211_FLAG_NEED_RTNL,
6350 .cmd = NL80211_CMD_SET_WOWLAN,
6351 .doit = nl80211_set_wowlan,
6352 .policy = nl80211_policy,
6353 .flags = GENL_ADMIN_PERM,
6354 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6355 NL80211_FLAG_NEED_RTNL,
6358 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6359 .doit = nl80211_set_rekey_data,
6360 .policy = nl80211_policy,
6361 .flags = GENL_ADMIN_PERM,
6362 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6363 NL80211_FLAG_NEED_RTNL,
6366 .cmd = NL80211_CMD_TDLS_MGMT,
6367 .doit = nl80211_tdls_mgmt,
6368 .policy = nl80211_policy,
6369 .flags = GENL_ADMIN_PERM,
6370 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6371 NL80211_FLAG_NEED_RTNL,
6374 .cmd = NL80211_CMD_TDLS_OPER,
6375 .doit = nl80211_tdls_oper,
6376 .policy = nl80211_policy,
6377 .flags = GENL_ADMIN_PERM,
6378 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6379 NL80211_FLAG_NEED_RTNL,
6383 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6387 /* multicast groups */
6388 static struct genl_multicast_group nl80211_config_mcgrp = {
6391 static struct genl_multicast_group nl80211_scan_mcgrp = {
6394 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6395 .name = "regulatory",
6398 /* notification functions */
6400 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6402 struct sk_buff *msg;
6404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6408 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6413 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6414 nl80211_config_mcgrp.id, GFP_KERNEL);
6417 static int nl80211_add_scan_req(struct sk_buff *msg,
6418 struct cfg80211_registered_device *rdev)
6420 struct cfg80211_scan_request *req = rdev->scan_req;
6421 struct nlattr *nest;
6424 ASSERT_RDEV_LOCK(rdev);
6429 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6431 goto nla_put_failure;
6432 for (i = 0; i < req->n_ssids; i++)
6433 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6434 nla_nest_end(msg, nest);
6436 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6438 goto nla_put_failure;
6439 for (i = 0; i < req->n_channels; i++)
6440 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6441 nla_nest_end(msg, nest);
6444 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6451 static int nl80211_send_scan_msg(struct sk_buff *msg,
6452 struct cfg80211_registered_device *rdev,
6453 struct net_device *netdev,
6454 u32 pid, u32 seq, int flags,
6459 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6463 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6464 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6466 /* ignore errors and send incomplete event anyway */
6467 nl80211_add_scan_req(msg, rdev);
6469 return genlmsg_end(msg, hdr);
6472 genlmsg_cancel(msg, hdr);
6477 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6478 struct cfg80211_registered_device *rdev,
6479 struct net_device *netdev,
6480 u32 pid, u32 seq, int flags, u32 cmd)
6484 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6488 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6489 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6491 return genlmsg_end(msg, hdr);
6494 genlmsg_cancel(msg, hdr);
6498 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6499 struct net_device *netdev)
6501 struct sk_buff *msg;
6503 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6507 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6508 NL80211_CMD_TRIGGER_SCAN) < 0) {
6513 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6514 nl80211_scan_mcgrp.id, GFP_KERNEL);
6517 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6518 struct net_device *netdev)
6520 struct sk_buff *msg;
6522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6526 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6527 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
6532 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6533 nl80211_scan_mcgrp.id, GFP_KERNEL);
6536 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6537 struct net_device *netdev)
6539 struct sk_buff *msg;
6541 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6545 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6546 NL80211_CMD_SCAN_ABORTED) < 0) {
6551 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6552 nl80211_scan_mcgrp.id, GFP_KERNEL);
6555 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6556 struct net_device *netdev)
6558 struct sk_buff *msg;
6560 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6564 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6565 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6570 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6571 nl80211_scan_mcgrp.id, GFP_KERNEL);
6574 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6575 struct net_device *netdev, u32 cmd)
6577 struct sk_buff *msg;
6579 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6583 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6588 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6589 nl80211_scan_mcgrp.id, GFP_KERNEL);
6593 * This can happen on global regulatory changes or device specific settings
6594 * based on custom world regulatory domains.
6596 void nl80211_send_reg_change_event(struct regulatory_request *request)
6598 struct sk_buff *msg;
6601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6605 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6611 /* Userspace can always count this one always being set */
6612 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6614 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6615 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6616 NL80211_REGDOM_TYPE_WORLD);
6617 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6618 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6619 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6620 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6622 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6623 NL80211_REGDOM_TYPE_INTERSECTION);
6625 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6626 NL80211_REGDOM_TYPE_COUNTRY);
6627 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6630 if (wiphy_idx_valid(request->wiphy_idx))
6631 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6633 if (genlmsg_end(msg, hdr) < 0) {
6639 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6646 genlmsg_cancel(msg, hdr);
6650 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6651 struct net_device *netdev,
6652 const u8 *buf, size_t len,
6653 enum nl80211_commands cmd, gfp_t gfp)
6655 struct sk_buff *msg;
6658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6662 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6668 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6669 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6670 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6672 if (genlmsg_end(msg, hdr) < 0) {
6677 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6678 nl80211_mlme_mcgrp.id, gfp);
6682 genlmsg_cancel(msg, hdr);
6686 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
6687 struct net_device *netdev, const u8 *buf,
6688 size_t len, gfp_t gfp)
6690 nl80211_send_mlme_event(rdev, netdev, buf, len,
6691 NL80211_CMD_AUTHENTICATE, gfp);
6694 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6695 struct net_device *netdev, const u8 *buf,
6696 size_t len, gfp_t gfp)
6698 nl80211_send_mlme_event(rdev, netdev, buf, len,
6699 NL80211_CMD_ASSOCIATE, gfp);
6702 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
6703 struct net_device *netdev, const u8 *buf,
6704 size_t len, gfp_t gfp)
6706 nl80211_send_mlme_event(rdev, netdev, buf, len,
6707 NL80211_CMD_DEAUTHENTICATE, gfp);
6710 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6711 struct net_device *netdev, const u8 *buf,
6712 size_t len, gfp_t gfp)
6714 nl80211_send_mlme_event(rdev, netdev, buf, len,
6715 NL80211_CMD_DISASSOCIATE, gfp);
6718 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6719 struct net_device *netdev, const u8 *buf,
6720 size_t len, gfp_t gfp)
6722 nl80211_send_mlme_event(rdev, netdev, buf, len,
6723 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6726 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6727 struct net_device *netdev, const u8 *buf,
6728 size_t len, gfp_t gfp)
6730 nl80211_send_mlme_event(rdev, netdev, buf, len,
6731 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6734 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6735 struct net_device *netdev, int cmd,
6736 const u8 *addr, gfp_t gfp)
6738 struct sk_buff *msg;
6741 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6745 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6751 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6752 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6753 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6754 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6756 if (genlmsg_end(msg, hdr) < 0) {
6761 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6762 nl80211_mlme_mcgrp.id, gfp);
6766 genlmsg_cancel(msg, hdr);
6770 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
6771 struct net_device *netdev, const u8 *addr,
6774 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
6778 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
6779 struct net_device *netdev, const u8 *addr,
6782 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6786 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6787 struct net_device *netdev, const u8 *bssid,
6788 const u8 *req_ie, size_t req_ie_len,
6789 const u8 *resp_ie, size_t resp_ie_len,
6790 u16 status, gfp_t gfp)
6792 struct sk_buff *msg;
6795 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6799 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6805 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6806 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6808 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6809 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6811 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6813 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6815 if (genlmsg_end(msg, hdr) < 0) {
6820 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6821 nl80211_mlme_mcgrp.id, gfp);
6825 genlmsg_cancel(msg, hdr);
6830 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6831 struct net_device *netdev, const u8 *bssid,
6832 const u8 *req_ie, size_t req_ie_len,
6833 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6835 struct sk_buff *msg;
6838 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6842 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6848 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6849 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6850 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6852 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6854 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6856 if (genlmsg_end(msg, hdr) < 0) {
6861 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6862 nl80211_mlme_mcgrp.id, gfp);
6866 genlmsg_cancel(msg, hdr);
6871 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6872 struct net_device *netdev, u16 reason,
6873 const u8 *ie, size_t ie_len, bool from_ap)
6875 struct sk_buff *msg;
6878 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6882 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6888 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6889 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6890 if (from_ap && reason)
6891 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6893 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6895 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6897 if (genlmsg_end(msg, hdr) < 0) {
6902 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6903 nl80211_mlme_mcgrp.id, GFP_KERNEL);
6907 genlmsg_cancel(msg, hdr);
6912 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6913 struct net_device *netdev, const u8 *bssid,
6916 struct sk_buff *msg;
6919 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6923 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6929 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6930 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6931 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6933 if (genlmsg_end(msg, hdr) < 0) {
6938 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6939 nl80211_mlme_mcgrp.id, gfp);
6943 genlmsg_cancel(msg, hdr);
6947 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6948 struct net_device *netdev,
6949 const u8 *macaddr, const u8* ie, u8 ie_len,
6952 struct sk_buff *msg;
6955 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6959 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6965 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6966 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6967 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6969 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6971 if (genlmsg_end(msg, hdr) < 0) {
6976 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6977 nl80211_mlme_mcgrp.id, gfp);
6981 genlmsg_cancel(msg, hdr);
6985 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6986 struct net_device *netdev, const u8 *addr,
6987 enum nl80211_key_type key_type, int key_id,
6988 const u8 *tsc, gfp_t gfp)
6990 struct sk_buff *msg;
6993 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6997 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7003 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7004 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7006 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7007 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
7009 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
7011 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7013 if (genlmsg_end(msg, hdr) < 0) {
7018 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7019 nl80211_mlme_mcgrp.id, gfp);
7023 genlmsg_cancel(msg, hdr);
7027 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7028 struct ieee80211_channel *channel_before,
7029 struct ieee80211_channel *channel_after)
7031 struct sk_buff *msg;
7033 struct nlattr *nl_freq;
7035 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7039 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7046 * Since we are applying the beacon hint to a wiphy we know its
7047 * wiphy_idx is valid
7049 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7052 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7054 goto nla_put_failure;
7055 if (nl80211_msg_put_channel(msg, channel_before))
7056 goto nla_put_failure;
7057 nla_nest_end(msg, nl_freq);
7060 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7062 goto nla_put_failure;
7063 if (nl80211_msg_put_channel(msg, channel_after))
7064 goto nla_put_failure;
7065 nla_nest_end(msg, nl_freq);
7067 if (genlmsg_end(msg, hdr) < 0) {
7073 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7080 genlmsg_cancel(msg, hdr);
7084 static void nl80211_send_remain_on_chan_event(
7085 int cmd, struct cfg80211_registered_device *rdev,
7086 struct net_device *netdev, u64 cookie,
7087 struct ieee80211_channel *chan,
7088 enum nl80211_channel_type channel_type,
7089 unsigned int duration, gfp_t gfp)
7091 struct sk_buff *msg;
7094 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7098 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7104 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7105 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7106 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7107 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7108 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7110 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7111 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7113 if (genlmsg_end(msg, hdr) < 0) {
7118 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7119 nl80211_mlme_mcgrp.id, gfp);
7123 genlmsg_cancel(msg, hdr);
7127 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7128 struct net_device *netdev, u64 cookie,
7129 struct ieee80211_channel *chan,
7130 enum nl80211_channel_type channel_type,
7131 unsigned int duration, gfp_t gfp)
7133 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7134 rdev, netdev, cookie, chan,
7135 channel_type, duration, gfp);
7138 void nl80211_send_remain_on_channel_cancel(
7139 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7140 u64 cookie, struct ieee80211_channel *chan,
7141 enum nl80211_channel_type channel_type, gfp_t gfp)
7143 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7144 rdev, netdev, cookie, chan,
7145 channel_type, 0, gfp);
7148 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7149 struct net_device *dev, const u8 *mac_addr,
7150 struct station_info *sinfo, gfp_t gfp)
7152 struct sk_buff *msg;
7154 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7158 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7163 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7164 nl80211_mlme_mcgrp.id, gfp);
7167 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7168 struct net_device *dev, const u8 *mac_addr,
7171 struct sk_buff *msg;
7174 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7178 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7184 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7185 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7187 if (genlmsg_end(msg, hdr) < 0) {
7192 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7193 nl80211_mlme_mcgrp.id, gfp);
7197 genlmsg_cancel(msg, hdr);
7201 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7202 struct net_device *netdev, u32 nlpid,
7203 int freq, const u8 *buf, size_t len, gfp_t gfp)
7205 struct sk_buff *msg;
7209 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7213 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7219 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7220 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7221 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7222 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7224 err = genlmsg_end(msg, hdr);
7230 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7236 genlmsg_cancel(msg, hdr);
7241 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7242 struct net_device *netdev, u64 cookie,
7243 const u8 *buf, size_t len, bool ack,
7246 struct sk_buff *msg;
7249 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7253 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7259 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7260 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7261 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7262 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7264 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7266 if (genlmsg_end(msg, hdr) < 0) {
7271 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7275 genlmsg_cancel(msg, hdr);
7280 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7281 struct net_device *netdev,
7282 enum nl80211_cqm_rssi_threshold_event rssi_event,
7285 struct sk_buff *msg;
7286 struct nlattr *pinfoattr;
7289 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7293 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7299 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7300 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7302 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7304 goto nla_put_failure;
7306 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7309 nla_nest_end(msg, pinfoattr);
7311 if (genlmsg_end(msg, hdr) < 0) {
7316 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7317 nl80211_mlme_mcgrp.id, gfp);
7321 genlmsg_cancel(msg, hdr);
7325 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7326 struct net_device *netdev, const u8 *bssid,
7327 const u8 *replay_ctr, gfp_t gfp)
7329 struct sk_buff *msg;
7330 struct nlattr *rekey_attr;
7333 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7337 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7343 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7344 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7345 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7347 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7349 goto nla_put_failure;
7351 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7352 NL80211_REPLAY_CTR_LEN, replay_ctr);
7354 nla_nest_end(msg, rekey_attr);
7356 if (genlmsg_end(msg, hdr) < 0) {
7361 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7362 nl80211_mlme_mcgrp.id, gfp);
7366 genlmsg_cancel(msg, hdr);
7370 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7371 struct net_device *netdev, int index,
7372 const u8 *bssid, bool preauth, gfp_t gfp)
7374 struct sk_buff *msg;
7375 struct nlattr *attr;
7378 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7382 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7388 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7389 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7391 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7393 goto nla_put_failure;
7395 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7396 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7398 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7400 nla_nest_end(msg, attr);
7402 if (genlmsg_end(msg, hdr) < 0) {
7407 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7408 nl80211_mlme_mcgrp.id, gfp);
7412 genlmsg_cancel(msg, hdr);
7417 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7418 struct net_device *netdev, const u8 *peer,
7419 u32 num_packets, gfp_t gfp)
7421 struct sk_buff *msg;
7422 struct nlattr *pinfoattr;
7425 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7429 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7435 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7436 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7437 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7439 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7441 goto nla_put_failure;
7443 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7445 nla_nest_end(msg, pinfoattr);
7447 if (genlmsg_end(msg, hdr) < 0) {
7452 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7453 nl80211_mlme_mcgrp.id, gfp);
7457 genlmsg_cancel(msg, hdr);
7461 static int nl80211_netlink_notify(struct notifier_block * nb,
7462 unsigned long state,
7465 struct netlink_notify *notify = _notify;
7466 struct cfg80211_registered_device *rdev;
7467 struct wireless_dev *wdev;
7469 if (state != NETLINK_URELEASE)
7474 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7475 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
7476 cfg80211_mlme_unregister_socket(wdev, notify->pid);
7483 static struct notifier_block nl80211_netlink_notifier = {
7484 .notifier_call = nl80211_netlink_notify,
7487 /* initialisation/exit functions */
7489 int nl80211_init(void)
7493 err = genl_register_family_with_ops(&nl80211_fam,
7494 nl80211_ops, ARRAY_SIZE(nl80211_ops));
7498 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7502 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7506 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7510 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7514 #ifdef CONFIG_NL80211_TESTMODE
7515 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7520 err = netlink_register_notifier(&nl80211_netlink_notifier);
7526 genl_unregister_family(&nl80211_fam);
7530 void nl80211_exit(void)
7532 netlink_unregister_notifier(&nl80211_netlink_notifier);
7533 genl_unregister_family(&nl80211_fam);