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 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2348 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2349 sizeof(struct nl80211_sta_flag_update),
2351 nla_nest_end(msg, sinfoattr);
2353 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
2354 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2355 sinfo->assoc_req_ies);
2357 return genlmsg_end(msg, hdr);
2360 genlmsg_cancel(msg, hdr);
2364 static int nl80211_dump_station(struct sk_buff *skb,
2365 struct netlink_callback *cb)
2367 struct station_info sinfo;
2368 struct cfg80211_registered_device *dev;
2369 struct net_device *netdev;
2370 u8 mac_addr[ETH_ALEN];
2371 int sta_idx = cb->args[1];
2374 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2378 if (!dev->ops->dump_station) {
2384 memset(&sinfo, 0, sizeof(sinfo));
2385 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2392 if (nl80211_send_station(skb,
2393 NETLINK_CB(cb->skb).pid,
2394 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2404 cb->args[1] = sta_idx;
2407 nl80211_finish_netdev_dump(dev);
2412 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2414 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2415 struct net_device *dev = info->user_ptr[1];
2416 struct station_info sinfo;
2417 struct sk_buff *msg;
2418 u8 *mac_addr = NULL;
2421 memset(&sinfo, 0, sizeof(sinfo));
2423 if (!info->attrs[NL80211_ATTR_MAC])
2426 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2428 if (!rdev->ops->get_station)
2431 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2439 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2440 dev, mac_addr, &sinfo) < 0) {
2445 return genlmsg_reply(msg, info);
2449 * Get vlan interface making sure it is running and on the right wiphy.
2451 static int get_vlan(struct genl_info *info,
2452 struct cfg80211_registered_device *rdev,
2453 struct net_device **vlan)
2455 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2459 *vlan = dev_get_by_index(genl_info_net(info),
2460 nla_get_u32(vlanattr));
2463 if (!(*vlan)->ieee80211_ptr)
2465 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2467 if (!netif_running(*vlan))
2473 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2477 struct net_device *dev = info->user_ptr[1];
2478 struct station_parameters params;
2479 u8 *mac_addr = NULL;
2481 memset(¶ms, 0, sizeof(params));
2483 params.listen_interval = -1;
2484 params.plink_state = -1;
2486 if (info->attrs[NL80211_ATTR_STA_AID])
2489 if (!info->attrs[NL80211_ATTR_MAC])
2492 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2494 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2495 params.supported_rates =
2496 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2497 params.supported_rates_len =
2498 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2501 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2502 params.listen_interval =
2503 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2505 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2507 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2509 if (parse_station_flags(info, ¶ms))
2512 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2513 params.plink_action =
2514 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2516 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2517 params.plink_state =
2518 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2520 err = get_vlan(info, rdev, ¶ms.vlan);
2524 /* validate settings */
2527 switch (dev->ieee80211_ptr->iftype) {
2528 case NL80211_IFTYPE_AP:
2529 case NL80211_IFTYPE_AP_VLAN:
2530 case NL80211_IFTYPE_P2P_GO:
2531 /* disallow mesh-specific things */
2532 if (params.plink_action)
2535 case NL80211_IFTYPE_P2P_CLIENT:
2536 case NL80211_IFTYPE_STATION:
2537 /* disallow things sta doesn't support */
2538 if (params.plink_action)
2542 if (params.supported_rates &&
2543 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2547 if (params.listen_interval >= 0)
2549 if (params.sta_flags_mask &
2550 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2551 BIT(NL80211_STA_FLAG_TDLS_PEER)))
2553 /* can't change the TDLS bit */
2554 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2555 (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2558 case NL80211_IFTYPE_MESH_POINT:
2559 /* disallow things mesh doesn't support */
2564 if (params.listen_interval >= 0)
2566 if (params.sta_flags_mask &
2567 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2568 BIT(NL80211_STA_FLAG_MFP) |
2569 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2579 if (!rdev->ops->change_station) {
2584 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2588 dev_put(params.vlan);
2593 static struct nla_policy
2594 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2595 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2596 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2599 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2603 struct net_device *dev = info->user_ptr[1];
2604 struct station_parameters params;
2605 u8 *mac_addr = NULL;
2607 memset(¶ms, 0, sizeof(params));
2609 if (!info->attrs[NL80211_ATTR_MAC])
2612 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2615 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2618 if (!info->attrs[NL80211_ATTR_STA_AID])
2621 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2622 params.supported_rates =
2623 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2624 params.supported_rates_len =
2625 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2626 params.listen_interval =
2627 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2629 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2630 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2633 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2635 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2637 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2638 params.plink_action =
2639 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2641 if (parse_station_flags(info, ¶ms))
2644 /* parse WME attributes if sta is WME capable */
2645 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2646 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2647 info->attrs[NL80211_ATTR_STA_WME]) {
2648 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2651 nla = info->attrs[NL80211_ATTR_STA_WME];
2652 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2653 nl80211_sta_wme_policy);
2657 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2658 params.uapsd_queues =
2659 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2660 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2663 if (tb[NL80211_STA_WME_MAX_SP])
2665 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2667 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2670 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2673 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2674 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2675 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2676 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
2677 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
2681 * Only managed stations can add TDLS peers, and only when the
2682 * wiphy supports external TDLS setup.
2684 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION &&
2685 !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2686 (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2687 (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
2690 err = get_vlan(info, rdev, ¶ms.vlan);
2694 /* validate settings */
2697 if (!rdev->ops->add_station) {
2702 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2706 dev_put(params.vlan);
2710 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2712 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2713 struct net_device *dev = info->user_ptr[1];
2714 u8 *mac_addr = NULL;
2716 if (info->attrs[NL80211_ATTR_MAC])
2717 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2720 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2721 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2722 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2725 if (!rdev->ops->del_station)
2728 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2731 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2732 int flags, struct net_device *dev,
2733 u8 *dst, u8 *next_hop,
2734 struct mpath_info *pinfo)
2737 struct nlattr *pinfoattr;
2739 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2743 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2744 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2745 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2747 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2749 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2751 goto nla_put_failure;
2752 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2753 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2755 if (pinfo->filled & MPATH_INFO_SN)
2756 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2758 if (pinfo->filled & MPATH_INFO_METRIC)
2759 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2761 if (pinfo->filled & MPATH_INFO_EXPTIME)
2762 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2764 if (pinfo->filled & MPATH_INFO_FLAGS)
2765 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2767 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2768 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2769 pinfo->discovery_timeout);
2770 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2771 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2772 pinfo->discovery_retries);
2774 nla_nest_end(msg, pinfoattr);
2776 return genlmsg_end(msg, hdr);
2779 genlmsg_cancel(msg, hdr);
2783 static int nl80211_dump_mpath(struct sk_buff *skb,
2784 struct netlink_callback *cb)
2786 struct mpath_info pinfo;
2787 struct cfg80211_registered_device *dev;
2788 struct net_device *netdev;
2790 u8 next_hop[ETH_ALEN];
2791 int path_idx = cb->args[1];
2794 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2798 if (!dev->ops->dump_mpath) {
2803 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2809 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2810 dst, next_hop, &pinfo);
2816 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2817 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2818 netdev, dst, next_hop,
2827 cb->args[1] = path_idx;
2830 nl80211_finish_netdev_dump(dev);
2834 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2838 struct net_device *dev = info->user_ptr[1];
2839 struct mpath_info pinfo;
2840 struct sk_buff *msg;
2842 u8 next_hop[ETH_ALEN];
2844 memset(&pinfo, 0, sizeof(pinfo));
2846 if (!info->attrs[NL80211_ATTR_MAC])
2849 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2851 if (!rdev->ops->get_mpath)
2854 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2857 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2861 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2865 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2866 dev, dst, next_hop, &pinfo) < 0) {
2871 return genlmsg_reply(msg, info);
2874 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2877 struct net_device *dev = info->user_ptr[1];
2879 u8 *next_hop = NULL;
2881 if (!info->attrs[NL80211_ATTR_MAC])
2884 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2887 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2888 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2890 if (!rdev->ops->change_mpath)
2893 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2896 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2899 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2902 struct net_device *dev = info->user_ptr[1];
2904 u8 *next_hop = NULL;
2906 if (!info->attrs[NL80211_ATTR_MAC])
2909 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2912 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2913 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2915 if (!rdev->ops->add_mpath)
2918 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2921 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2924 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2927 struct net_device *dev = info->user_ptr[1];
2930 if (info->attrs[NL80211_ATTR_MAC])
2931 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2933 if (!rdev->ops->del_mpath)
2936 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2939 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2942 struct net_device *dev = info->user_ptr[1];
2943 struct bss_parameters params;
2945 memset(¶ms, 0, sizeof(params));
2946 /* default to not changing parameters */
2947 params.use_cts_prot = -1;
2948 params.use_short_preamble = -1;
2949 params.use_short_slot_time = -1;
2950 params.ap_isolate = -1;
2951 params.ht_opmode = -1;
2953 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2954 params.use_cts_prot =
2955 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2956 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2957 params.use_short_preamble =
2958 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2959 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2960 params.use_short_slot_time =
2961 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2962 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2963 params.basic_rates =
2964 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2965 params.basic_rates_len =
2966 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2968 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2969 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2970 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2972 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
2974 if (!rdev->ops->change_bss)
2977 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2978 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2981 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2984 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2985 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2986 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2987 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2988 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2989 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2990 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2993 static int parse_reg_rule(struct nlattr *tb[],
2994 struct ieee80211_reg_rule *reg_rule)
2996 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2997 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2999 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3001 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3003 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3005 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3007 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3010 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3012 freq_range->start_freq_khz =
3013 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3014 freq_range->end_freq_khz =
3015 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3016 freq_range->max_bandwidth_khz =
3017 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3019 power_rule->max_eirp =
3020 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3022 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3023 power_rule->max_antenna_gain =
3024 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3029 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3035 * You should only get this when cfg80211 hasn't yet initialized
3036 * completely when built-in to the kernel right between the time
3037 * window between nl80211_init() and regulatory_init(), if that is
3040 mutex_lock(&cfg80211_mutex);
3041 if (unlikely(!cfg80211_regdomain)) {
3042 mutex_unlock(&cfg80211_mutex);
3043 return -EINPROGRESS;
3045 mutex_unlock(&cfg80211_mutex);
3047 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3050 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3052 r = regulatory_hint_user(data);
3057 static int nl80211_get_mesh_config(struct sk_buff *skb,
3058 struct genl_info *info)
3060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3061 struct net_device *dev = info->user_ptr[1];
3062 struct wireless_dev *wdev = dev->ieee80211_ptr;
3063 struct mesh_config cur_params;
3066 struct nlattr *pinfoattr;
3067 struct sk_buff *msg;
3069 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3072 if (!rdev->ops->get_mesh_config)
3076 /* If not connected, get default parameters */
3077 if (!wdev->mesh_id_len)
3078 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3080 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3087 /* Draw up a netlink message to send back */
3088 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3091 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3092 NL80211_CMD_GET_MESH_CONFIG);
3095 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3097 goto nla_put_failure;
3098 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3099 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3100 cur_params.dot11MeshRetryTimeout);
3101 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3102 cur_params.dot11MeshConfirmTimeout);
3103 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3104 cur_params.dot11MeshHoldingTimeout);
3105 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3106 cur_params.dot11MeshMaxPeerLinks);
3107 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3108 cur_params.dot11MeshMaxRetries);
3109 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3110 cur_params.dot11MeshTTL);
3111 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3112 cur_params.element_ttl);
3113 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3114 cur_params.auto_open_plinks);
3115 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3116 cur_params.dot11MeshHWMPmaxPREQretries);
3117 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3118 cur_params.path_refresh_time);
3119 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3120 cur_params.min_discovery_timeout);
3121 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3122 cur_params.dot11MeshHWMPactivePathTimeout);
3123 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3124 cur_params.dot11MeshHWMPpreqMinInterval);
3125 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3126 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
3127 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3128 cur_params.dot11MeshHWMPRootMode);
3129 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3130 cur_params.dot11MeshHWMPRannInterval);
3131 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3132 cur_params.dot11MeshGateAnnouncementProtocol);
3133 nla_nest_end(msg, pinfoattr);
3134 genlmsg_end(msg, hdr);
3135 return genlmsg_reply(msg, info);
3138 genlmsg_cancel(msg, hdr);
3144 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3145 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3146 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3147 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3148 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3149 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3150 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3151 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3152 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3154 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3155 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3156 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3157 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3158 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3159 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3160 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3161 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3162 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3165 static const struct nla_policy
3166 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3167 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3168 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3169 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3170 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3171 .len = IEEE80211_MAX_DATA_LEN },
3172 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3175 static int nl80211_parse_mesh_config(struct genl_info *info,
3176 struct mesh_config *cfg,
3179 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3182 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3184 if (table[attr_num]) {\
3185 cfg->param = nla_fn(table[attr_num]); \
3186 mask |= (1 << (attr_num - 1)); \
3191 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3193 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3194 info->attrs[NL80211_ATTR_MESH_CONFIG],
3195 nl80211_meshconf_params_policy))
3198 /* This makes sure that there aren't more than 32 mesh config
3199 * parameters (otherwise our bitfield scheme would not work.) */
3200 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3202 /* Fill in the params struct */
3203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3204 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3206 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3207 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3208 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3210 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3211 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3212 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3213 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3214 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3216 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3217 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3218 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3219 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3220 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3222 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3223 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3225 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3227 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3228 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3230 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3231 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3234 dot11MeshHWMPnetDiameterTraversalTime,
3235 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3237 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3238 dot11MeshHWMPRootMode, mask,
3239 NL80211_MESHCONF_HWMP_ROOTMODE,
3241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3242 dot11MeshHWMPRannInterval, mask,
3243 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3245 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3246 dot11MeshGateAnnouncementProtocol, mask,
3247 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3254 #undef FILL_IN_MESH_PARAM_IF_SET
3257 static int nl80211_parse_mesh_setup(struct genl_info *info,
3258 struct mesh_setup *setup)
3260 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3262 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3264 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3265 info->attrs[NL80211_ATTR_MESH_SETUP],
3266 nl80211_mesh_setup_params_policy))
3269 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3270 setup->path_sel_proto =
3271 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3272 IEEE80211_PATH_PROTOCOL_VENDOR :
3273 IEEE80211_PATH_PROTOCOL_HWMP;
3275 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3276 setup->path_metric =
3277 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3278 IEEE80211_PATH_METRIC_VENDOR :
3279 IEEE80211_PATH_METRIC_AIRTIME;
3282 if (tb[NL80211_MESH_SETUP_IE]) {
3283 struct nlattr *ieattr =
3284 tb[NL80211_MESH_SETUP_IE];
3285 if (!is_valid_ie_attr(ieattr))
3287 setup->ie = nla_data(ieattr);
3288 setup->ie_len = nla_len(ieattr);
3290 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3291 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3296 static int nl80211_update_mesh_config(struct sk_buff *skb,
3297 struct genl_info *info)
3299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3300 struct net_device *dev = info->user_ptr[1];
3301 struct wireless_dev *wdev = dev->ieee80211_ptr;
3302 struct mesh_config cfg;
3306 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3309 if (!rdev->ops->update_mesh_config)
3312 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3317 if (!wdev->mesh_id_len)
3321 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3329 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3331 struct sk_buff *msg;
3333 struct nlattr *nl_reg_rules;
3337 mutex_lock(&cfg80211_mutex);
3339 if (!cfg80211_regdomain)
3342 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3348 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3349 NL80211_CMD_GET_REG);
3353 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3354 cfg80211_regdomain->alpha2);
3356 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3358 goto nla_put_failure;
3360 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3361 struct nlattr *nl_reg_rule;
3362 const struct ieee80211_reg_rule *reg_rule;
3363 const struct ieee80211_freq_range *freq_range;
3364 const struct ieee80211_power_rule *power_rule;
3366 reg_rule = &cfg80211_regdomain->reg_rules[i];
3367 freq_range = ®_rule->freq_range;
3368 power_rule = ®_rule->power_rule;
3370 nl_reg_rule = nla_nest_start(msg, i);
3372 goto nla_put_failure;
3374 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3376 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3377 freq_range->start_freq_khz);
3378 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3379 freq_range->end_freq_khz);
3380 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3381 freq_range->max_bandwidth_khz);
3382 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3383 power_rule->max_antenna_gain);
3384 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3385 power_rule->max_eirp);
3387 nla_nest_end(msg, nl_reg_rule);
3390 nla_nest_end(msg, nl_reg_rules);
3392 genlmsg_end(msg, hdr);
3393 err = genlmsg_reply(msg, info);
3397 genlmsg_cancel(msg, hdr);
3402 mutex_unlock(&cfg80211_mutex);
3406 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3408 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3409 struct nlattr *nl_reg_rule;
3410 char *alpha2 = NULL;
3411 int rem_reg_rules = 0, r = 0;
3412 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3413 struct ieee80211_regdomain *rd = NULL;
3415 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3418 if (!info->attrs[NL80211_ATTR_REG_RULES])
3421 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3423 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3426 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3430 mutex_lock(&cfg80211_mutex);
3432 if (!reg_is_valid_request(alpha2)) {
3437 size_of_regd = sizeof(struct ieee80211_regdomain) +
3438 (num_rules * sizeof(struct ieee80211_reg_rule));
3440 rd = kzalloc(size_of_regd, GFP_KERNEL);
3446 rd->n_reg_rules = num_rules;
3447 rd->alpha2[0] = alpha2[0];
3448 rd->alpha2[1] = alpha2[1];
3450 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3452 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3453 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3455 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3461 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3467 BUG_ON(rule_idx != num_rules);
3471 mutex_unlock(&cfg80211_mutex);
3476 mutex_unlock(&cfg80211_mutex);
3481 static int validate_scan_freqs(struct nlattr *freqs)
3483 struct nlattr *attr1, *attr2;
3484 int n_channels = 0, tmp1, tmp2;
3486 nla_for_each_nested(attr1, freqs, tmp1) {
3489 * Some hardware has a limited channel list for
3490 * scanning, and it is pretty much nonsensical
3491 * to scan for a channel twice, so disallow that
3492 * and don't require drivers to check that the
3493 * channel list they get isn't longer than what
3494 * they can scan, as long as they can scan all
3495 * the channels they registered at once.
3497 nla_for_each_nested(attr2, freqs, tmp2)
3498 if (attr1 != attr2 &&
3499 nla_get_u32(attr1) == nla_get_u32(attr2))
3506 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3509 struct net_device *dev = info->user_ptr[1];
3510 struct cfg80211_scan_request *request;
3511 struct nlattr *attr;
3512 struct wiphy *wiphy;
3513 int err, tmp, n_ssids = 0, n_channels, i;
3516 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3519 wiphy = &rdev->wiphy;
3521 if (!rdev->ops->scan)
3527 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3528 n_channels = validate_scan_freqs(
3529 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3533 enum ieee80211_band band;
3536 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3537 if (wiphy->bands[band])
3538 n_channels += wiphy->bands[band]->n_channels;
3541 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3542 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3545 if (n_ssids > wiphy->max_scan_ssids)
3548 if (info->attrs[NL80211_ATTR_IE])
3549 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3553 if (ie_len > wiphy->max_scan_ie_len)
3556 request = kzalloc(sizeof(*request)
3557 + sizeof(*request->ssids) * n_ssids
3558 + sizeof(*request->channels) * n_channels
3559 + ie_len, GFP_KERNEL);
3564 request->ssids = (void *)&request->channels[n_channels];
3565 request->n_ssids = n_ssids;
3568 request->ie = (void *)(request->ssids + n_ssids);
3570 request->ie = (void *)(request->channels + n_channels);
3574 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3575 /* user specified, bail out if channel not found */
3576 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3577 struct ieee80211_channel *chan;
3579 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3586 /* ignore disabled channels */
3587 if (chan->flags & IEEE80211_CHAN_DISABLED)
3590 request->channels[i] = chan;
3594 enum ieee80211_band band;
3597 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3599 if (!wiphy->bands[band])
3601 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3602 struct ieee80211_channel *chan;
3604 chan = &wiphy->bands[band]->channels[j];
3606 if (chan->flags & IEEE80211_CHAN_DISABLED)
3609 request->channels[i] = chan;
3620 request->n_channels = i;
3623 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3624 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3625 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3629 request->ssids[i].ssid_len = nla_len(attr);
3630 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3635 if (info->attrs[NL80211_ATTR_IE]) {
3636 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3637 memcpy((void *)request->ie,
3638 nla_data(info->attrs[NL80211_ATTR_IE]),
3642 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3643 if (wiphy->bands[i])
3645 (1 << wiphy->bands[i]->n_bitrates) - 1;
3647 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3648 nla_for_each_nested(attr,
3649 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3651 enum ieee80211_band band = nla_type(attr);
3653 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3657 err = ieee80211_get_ratemask(wiphy->bands[band],
3660 &request->rates[band]);
3667 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3670 request->wiphy = &rdev->wiphy;
3672 rdev->scan_req = request;
3673 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3676 nl80211_send_scan_start(rdev, dev);
3680 rdev->scan_req = NULL;
3687 static int nl80211_start_sched_scan(struct sk_buff *skb,
3688 struct genl_info *info)
3690 struct cfg80211_sched_scan_request *request;
3691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3692 struct net_device *dev = info->user_ptr[1];
3693 struct nlattr *attr;
3694 struct wiphy *wiphy;
3695 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
3697 enum ieee80211_band band;
3699 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
3701 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3702 !rdev->ops->sched_scan_start)
3705 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3708 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3711 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3715 wiphy = &rdev->wiphy;
3717 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3718 n_channels = validate_scan_freqs(
3719 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3725 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3726 if (wiphy->bands[band])
3727 n_channels += wiphy->bands[band]->n_channels;
3730 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3731 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3735 if (n_ssids > wiphy->max_sched_scan_ssids)
3738 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3739 nla_for_each_nested(attr,
3740 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3744 if (n_match_sets > wiphy->max_match_sets)
3747 if (info->attrs[NL80211_ATTR_IE])
3748 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3752 if (ie_len > wiphy->max_sched_scan_ie_len)
3755 mutex_lock(&rdev->sched_scan_mtx);
3757 if (rdev->sched_scan_req) {
3762 request = kzalloc(sizeof(*request)
3763 + sizeof(*request->ssids) * n_ssids
3764 + sizeof(*request->match_sets) * n_match_sets
3765 + sizeof(*request->channels) * n_channels
3766 + ie_len, GFP_KERNEL);
3773 request->ssids = (void *)&request->channels[n_channels];
3774 request->n_ssids = n_ssids;
3777 request->ie = (void *)(request->ssids + n_ssids);
3779 request->ie = (void *)(request->channels + n_channels);
3784 request->match_sets = (void *)(request->ie + ie_len);
3785 else if (request->ssids)
3786 request->match_sets =
3787 (void *)(request->ssids + n_ssids);
3789 request->match_sets =
3790 (void *)(request->channels + n_channels);
3792 request->n_match_sets = n_match_sets;
3795 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3796 /* user specified, bail out if channel not found */
3797 nla_for_each_nested(attr,
3798 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3800 struct ieee80211_channel *chan;
3802 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3809 /* ignore disabled channels */
3810 if (chan->flags & IEEE80211_CHAN_DISABLED)
3813 request->channels[i] = chan;
3818 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3820 if (!wiphy->bands[band])
3822 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3823 struct ieee80211_channel *chan;
3825 chan = &wiphy->bands[band]->channels[j];
3827 if (chan->flags & IEEE80211_CHAN_DISABLED)
3830 request->channels[i] = chan;
3841 request->n_channels = i;
3844 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3845 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3847 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3851 request->ssids[i].ssid_len = nla_len(attr);
3852 memcpy(request->ssids[i].ssid, nla_data(attr),
3859 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3860 nla_for_each_nested(attr,
3861 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3863 struct nlattr *ssid;
3865 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3866 nla_data(attr), nla_len(attr),
3867 nl80211_match_policy);
3868 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3870 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3874 memcpy(request->match_sets[i].ssid.ssid,
3875 nla_data(ssid), nla_len(ssid));
3876 request->match_sets[i].ssid.ssid_len =
3883 if (info->attrs[NL80211_ATTR_IE]) {
3884 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3885 memcpy((void *)request->ie,
3886 nla_data(info->attrs[NL80211_ATTR_IE]),
3891 request->wiphy = &rdev->wiphy;
3892 request->interval = interval;
3894 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3896 rdev->sched_scan_req = request;
3897 nl80211_send_sched_scan(rdev, dev,
3898 NL80211_CMD_START_SCHED_SCAN);
3905 mutex_unlock(&rdev->sched_scan_mtx);
3909 static int nl80211_stop_sched_scan(struct sk_buff *skb,
3910 struct genl_info *info)
3912 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3915 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3916 !rdev->ops->sched_scan_stop)
3919 mutex_lock(&rdev->sched_scan_mtx);
3920 err = __cfg80211_stop_sched_scan(rdev, false);
3921 mutex_unlock(&rdev->sched_scan_mtx);
3926 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3928 struct cfg80211_registered_device *rdev,
3929 struct wireless_dev *wdev,
3930 struct cfg80211_internal_bss *intbss)
3932 struct cfg80211_bss *res = &intbss->pub;
3937 ASSERT_WDEV_LOCK(wdev);
3939 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
3940 NL80211_CMD_NEW_SCAN_RESULTS);
3944 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3946 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3947 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3949 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3951 goto nla_put_failure;
3952 if (!is_zero_ether_addr(res->bssid))
3953 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3954 if (res->information_elements && res->len_information_elements)
3955 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3956 res->len_information_elements,
3957 res->information_elements);
3958 if (res->beacon_ies && res->len_beacon_ies &&
3959 res->beacon_ies != res->information_elements)
3960 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3961 res->len_beacon_ies, res->beacon_ies);
3963 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3964 if (res->beacon_interval)
3965 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3966 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3967 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3968 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3969 jiffies_to_msecs(jiffies - intbss->ts));
3971 switch (rdev->wiphy.signal_type) {
3972 case CFG80211_SIGNAL_TYPE_MBM:
3973 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3975 case CFG80211_SIGNAL_TYPE_UNSPEC:
3976 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3982 switch (wdev->iftype) {
3983 case NL80211_IFTYPE_P2P_CLIENT:
3984 case NL80211_IFTYPE_STATION:
3985 if (intbss == wdev->current_bss)
3986 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3987 NL80211_BSS_STATUS_ASSOCIATED);
3988 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3989 if (intbss != wdev->auth_bsses[i])
3991 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3992 NL80211_BSS_STATUS_AUTHENTICATED);
3996 case NL80211_IFTYPE_ADHOC:
3997 if (intbss == wdev->current_bss)
3998 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3999 NL80211_BSS_STATUS_IBSS_JOINED);
4005 nla_nest_end(msg, bss);
4007 return genlmsg_end(msg, hdr);
4010 genlmsg_cancel(msg, hdr);
4014 static int nl80211_dump_scan(struct sk_buff *skb,
4015 struct netlink_callback *cb)
4017 struct cfg80211_registered_device *rdev;
4018 struct net_device *dev;
4019 struct cfg80211_internal_bss *scan;
4020 struct wireless_dev *wdev;
4021 int start = cb->args[1], idx = 0;
4024 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4028 wdev = dev->ieee80211_ptr;
4031 spin_lock_bh(&rdev->bss_lock);
4032 cfg80211_bss_expire(rdev);
4034 cb->seq = rdev->bss_generation;
4036 list_for_each_entry(scan, &rdev->bss_list, list) {
4039 if (nl80211_send_bss(skb, cb,
4040 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4041 rdev, wdev, scan) < 0) {
4047 spin_unlock_bh(&rdev->bss_lock);
4051 nl80211_finish_netdev_dump(rdev);
4056 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4057 int flags, struct net_device *dev,
4058 struct survey_info *survey)
4061 struct nlattr *infoattr;
4063 hdr = nl80211hdr_put(msg, pid, seq, flags,
4064 NL80211_CMD_NEW_SURVEY_RESULTS);
4068 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4070 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4072 goto nla_put_failure;
4074 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4075 survey->channel->center_freq);
4076 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4077 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4079 if (survey->filled & SURVEY_INFO_IN_USE)
4080 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
4081 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4082 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4083 survey->channel_time);
4084 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4085 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4086 survey->channel_time_busy);
4087 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4088 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4089 survey->channel_time_ext_busy);
4090 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4091 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4092 survey->channel_time_rx);
4093 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4094 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4095 survey->channel_time_tx);
4097 nla_nest_end(msg, infoattr);
4099 return genlmsg_end(msg, hdr);
4102 genlmsg_cancel(msg, hdr);
4106 static int nl80211_dump_survey(struct sk_buff *skb,
4107 struct netlink_callback *cb)
4109 struct survey_info survey;
4110 struct cfg80211_registered_device *dev;
4111 struct net_device *netdev;
4112 int survey_idx = cb->args[1];
4115 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4119 if (!dev->ops->dump_survey) {
4125 struct ieee80211_channel *chan;
4127 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4134 /* Survey without a channel doesn't make sense */
4135 if (!survey.channel) {
4140 chan = ieee80211_get_channel(&dev->wiphy,
4141 survey.channel->center_freq);
4142 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4147 if (nl80211_send_survey(skb,
4148 NETLINK_CB(cb->skb).pid,
4149 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4157 cb->args[1] = survey_idx;
4160 nl80211_finish_netdev_dump(dev);
4164 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4166 return auth_type <= NL80211_AUTHTYPE_MAX;
4169 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4171 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4172 NL80211_WPA_VERSION_2));
4175 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4178 struct net_device *dev = info->user_ptr[1];
4179 struct ieee80211_channel *chan;
4180 const u8 *bssid, *ssid, *ie = NULL;
4181 int err, ssid_len, ie_len = 0;
4182 enum nl80211_auth_type auth_type;
4183 struct key_parse key;
4184 bool local_state_change;
4186 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4189 if (!info->attrs[NL80211_ATTR_MAC])
4192 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4195 if (!info->attrs[NL80211_ATTR_SSID])
4198 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4201 err = nl80211_parse_key(info, &key);
4206 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4208 if (!key.p.key || !key.p.key_len)
4210 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4211 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4212 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4213 key.p.key_len != WLAN_KEY_LEN_WEP104))
4225 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4226 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4235 if (!rdev->ops->auth)
4238 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4239 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4242 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4243 chan = ieee80211_get_channel(&rdev->wiphy,
4244 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4245 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4248 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4249 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4251 if (info->attrs[NL80211_ATTR_IE]) {
4252 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4253 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4256 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4257 if (!nl80211_valid_auth_type(auth_type))
4260 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4262 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4263 ssid, ssid_len, ie, ie_len,
4264 key.p.key, key.p.key_len, key.idx,
4265 local_state_change);
4268 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4269 struct genl_info *info,
4270 struct cfg80211_crypto_settings *settings,
4273 memset(settings, 0, sizeof(*settings));
4275 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4277 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4279 proto = nla_get_u16(
4280 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4281 settings->control_port_ethertype = cpu_to_be16(proto);
4282 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4285 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4286 settings->control_port_no_encrypt = true;
4288 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4290 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4294 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4295 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4296 settings->n_ciphers_pairwise = len / sizeof(u32);
4298 if (len % sizeof(u32))
4301 if (settings->n_ciphers_pairwise > cipher_limit)
4304 memcpy(settings->ciphers_pairwise, data, len);
4306 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4307 if (!cfg80211_supported_cipher_suite(
4309 settings->ciphers_pairwise[i]))
4313 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4314 settings->cipher_group =
4315 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4316 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4317 settings->cipher_group))
4321 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4322 settings->wpa_versions =
4323 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4324 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4328 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4332 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4333 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4334 settings->n_akm_suites = len / sizeof(u32);
4336 if (len % sizeof(u32))
4339 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4342 memcpy(settings->akm_suites, data, len);
4348 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4351 struct net_device *dev = info->user_ptr[1];
4352 struct cfg80211_crypto_settings crypto;
4353 struct ieee80211_channel *chan;
4354 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4355 int err, ssid_len, ie_len = 0;
4356 bool use_mfp = false;
4358 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4361 if (!info->attrs[NL80211_ATTR_MAC] ||
4362 !info->attrs[NL80211_ATTR_SSID] ||
4363 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4366 if (!rdev->ops->assoc)
4369 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4370 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4373 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4375 chan = ieee80211_get_channel(&rdev->wiphy,
4376 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4377 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4380 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4381 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4383 if (info->attrs[NL80211_ATTR_IE]) {
4384 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4385 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4388 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4389 enum nl80211_mfp mfp =
4390 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4391 if (mfp == NL80211_MFP_REQUIRED)
4393 else if (mfp != NL80211_MFP_NO)
4397 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4398 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4400 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4402 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4403 ssid, ssid_len, ie, ie_len, use_mfp,
4409 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4412 struct net_device *dev = info->user_ptr[1];
4413 const u8 *ie = NULL, *bssid;
4416 bool local_state_change;
4418 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4421 if (!info->attrs[NL80211_ATTR_MAC])
4424 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4427 if (!rdev->ops->deauth)
4430 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4431 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4434 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4436 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4437 if (reason_code == 0) {
4438 /* Reason Code 0 is reserved */
4442 if (info->attrs[NL80211_ATTR_IE]) {
4443 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4444 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4447 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4449 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4450 local_state_change);
4453 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4456 struct net_device *dev = info->user_ptr[1];
4457 const u8 *ie = NULL, *bssid;
4460 bool local_state_change;
4462 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4465 if (!info->attrs[NL80211_ATTR_MAC])
4468 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4471 if (!rdev->ops->disassoc)
4474 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4475 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4478 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4480 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4481 if (reason_code == 0) {
4482 /* Reason Code 0 is reserved */
4486 if (info->attrs[NL80211_ATTR_IE]) {
4487 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4488 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4491 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4493 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4494 local_state_change);
4498 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4499 int mcast_rate[IEEE80211_NUM_BANDS],
4502 struct wiphy *wiphy = &rdev->wiphy;
4506 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4507 struct ieee80211_supported_band *sband;
4509 sband = wiphy->bands[band];
4513 for (i = 0; i < sband->n_bitrates; i++) {
4514 if (sband->bitrates[i].bitrate == rateval) {
4515 mcast_rate[band] = i + 1;
4525 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4528 struct net_device *dev = info->user_ptr[1];
4529 struct cfg80211_ibss_params ibss;
4530 struct wiphy *wiphy;
4531 struct cfg80211_cached_keys *connkeys = NULL;
4534 memset(&ibss, 0, sizeof(ibss));
4536 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4539 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4540 !info->attrs[NL80211_ATTR_SSID] ||
4541 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4544 ibss.beacon_interval = 100;
4546 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4547 ibss.beacon_interval =
4548 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4549 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4553 if (!rdev->ops->join_ibss)
4556 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4559 wiphy = &rdev->wiphy;
4561 if (info->attrs[NL80211_ATTR_MAC]) {
4562 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4564 if (!is_valid_ether_addr(ibss.bssid))
4567 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4568 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4570 if (info->attrs[NL80211_ATTR_IE]) {
4571 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4572 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4575 ibss.channel = ieee80211_get_channel(wiphy,
4576 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4577 if (!ibss.channel ||
4578 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4579 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4582 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4583 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4585 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4587 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4589 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4590 struct ieee80211_supported_band *sband =
4591 wiphy->bands[ibss.channel->band];
4594 err = ieee80211_get_ratemask(sband, rates, n_rates,
4600 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4601 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4602 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4605 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4606 connkeys = nl80211_parse_connkeys(rdev,
4607 info->attrs[NL80211_ATTR_KEYS]);
4608 if (IS_ERR(connkeys))
4609 return PTR_ERR(connkeys);
4612 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4618 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4621 struct net_device *dev = info->user_ptr[1];
4623 if (!rdev->ops->leave_ibss)
4626 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4629 return cfg80211_leave_ibss(rdev, dev, false);
4632 #ifdef CONFIG_NL80211_TESTMODE
4633 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4637 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4642 if (!info->attrs[NL80211_ATTR_TESTDATA])
4646 if (rdev->ops->testmode_cmd) {
4647 rdev->testmode_info = info;
4648 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4649 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4650 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4651 rdev->testmode_info = NULL;
4657 static int nl80211_testmode_dump(struct sk_buff *skb,
4658 struct netlink_callback *cb)
4660 struct cfg80211_registered_device *dev;
4668 * 0 is a valid index, but not valid for args[0],
4669 * so we need to offset by 1.
4671 phy_idx = cb->args[0] - 1;
4673 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4674 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4678 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4680 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4681 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4683 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4687 data = nla_data((void *)cb->args[1]);
4688 data_len = nla_len((void *)cb->args[1]);
4691 mutex_lock(&cfg80211_mutex);
4692 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4694 mutex_unlock(&cfg80211_mutex);
4697 cfg80211_lock_rdev(dev);
4698 mutex_unlock(&cfg80211_mutex);
4700 if (!dev->ops->testmode_dump) {
4706 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4707 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4708 NL80211_CMD_TESTMODE);
4709 struct nlattr *tmdata;
4711 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4712 genlmsg_cancel(skb, hdr);
4716 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4718 genlmsg_cancel(skb, hdr);
4721 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4723 nla_nest_end(skb, tmdata);
4725 if (err == -ENOBUFS || err == -ENOENT) {
4726 genlmsg_cancel(skb, hdr);
4729 genlmsg_cancel(skb, hdr);
4733 genlmsg_end(skb, hdr);
4738 cb->args[0] = phy_idx + 1;
4740 cfg80211_unlock_rdev(dev);
4744 static struct sk_buff *
4745 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4746 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4748 struct sk_buff *skb;
4750 struct nlattr *data;
4752 skb = nlmsg_new(approxlen + 100, gfp);
4756 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4762 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4763 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4765 ((void **)skb->cb)[0] = rdev;
4766 ((void **)skb->cb)[1] = hdr;
4767 ((void **)skb->cb)[2] = data;
4776 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4779 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4781 if (WARN_ON(!rdev->testmode_info))
4784 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4785 rdev->testmode_info->snd_pid,
4786 rdev->testmode_info->snd_seq,
4789 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4791 int cfg80211_testmode_reply(struct sk_buff *skb)
4793 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4794 void *hdr = ((void **)skb->cb)[1];
4795 struct nlattr *data = ((void **)skb->cb)[2];
4797 if (WARN_ON(!rdev->testmode_info)) {
4802 nla_nest_end(skb, data);
4803 genlmsg_end(skb, hdr);
4804 return genlmsg_reply(skb, rdev->testmode_info);
4806 EXPORT_SYMBOL(cfg80211_testmode_reply);
4808 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4809 int approxlen, gfp_t gfp)
4811 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4813 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4815 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4817 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4819 void *hdr = ((void **)skb->cb)[1];
4820 struct nlattr *data = ((void **)skb->cb)[2];
4822 nla_nest_end(skb, data);
4823 genlmsg_end(skb, hdr);
4824 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4826 EXPORT_SYMBOL(cfg80211_testmode_event);
4829 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4832 struct net_device *dev = info->user_ptr[1];
4833 struct cfg80211_connect_params connect;
4834 struct wiphy *wiphy;
4835 struct cfg80211_cached_keys *connkeys = NULL;
4838 memset(&connect, 0, sizeof(connect));
4840 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4843 if (!info->attrs[NL80211_ATTR_SSID] ||
4844 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4847 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4849 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4850 if (!nl80211_valid_auth_type(connect.auth_type))
4853 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4855 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4857 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
4858 NL80211_MAX_NR_CIPHER_SUITES);
4862 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4863 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4866 wiphy = &rdev->wiphy;
4868 if (info->attrs[NL80211_ATTR_MAC])
4869 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4870 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4871 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4873 if (info->attrs[NL80211_ATTR_IE]) {
4874 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4875 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4878 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4880 ieee80211_get_channel(wiphy,
4881 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4882 if (!connect.channel ||
4883 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4887 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4888 connkeys = nl80211_parse_connkeys(rdev,
4889 info->attrs[NL80211_ATTR_KEYS]);
4890 if (IS_ERR(connkeys))
4891 return PTR_ERR(connkeys);
4894 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4900 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4903 struct net_device *dev = info->user_ptr[1];
4906 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4907 reason = WLAN_REASON_DEAUTH_LEAVING;
4909 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4914 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4915 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4918 return cfg80211_disconnect(rdev, dev, reason, true);
4921 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4923 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4928 if (!info->attrs[NL80211_ATTR_PID])
4931 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4933 net = get_net_ns_by_pid(pid);
4935 return PTR_ERR(net);
4939 /* check if anything to do */
4940 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4941 err = cfg80211_switch_netns(rdev, net);
4947 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4950 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4951 struct cfg80211_pmksa *pmksa) = NULL;
4952 struct net_device *dev = info->user_ptr[1];
4953 struct cfg80211_pmksa pmksa;
4955 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4957 if (!info->attrs[NL80211_ATTR_MAC])
4960 if (!info->attrs[NL80211_ATTR_PMKID])
4963 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4964 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4966 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4967 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4970 switch (info->genlhdr->cmd) {
4971 case NL80211_CMD_SET_PMKSA:
4972 rdev_ops = rdev->ops->set_pmksa;
4974 case NL80211_CMD_DEL_PMKSA:
4975 rdev_ops = rdev->ops->del_pmksa;
4985 return rdev_ops(&rdev->wiphy, dev, &pmksa);
4988 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4991 struct net_device *dev = info->user_ptr[1];
4993 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4994 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4997 if (!rdev->ops->flush_pmksa)
5000 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5003 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5006 struct net_device *dev = info->user_ptr[1];
5007 u8 action_code, dialog_token;
5011 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5012 !rdev->ops->tdls_mgmt)
5015 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5016 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5017 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5018 !info->attrs[NL80211_ATTR_IE] ||
5019 !info->attrs[NL80211_ATTR_MAC])
5022 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5023 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5024 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5025 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5027 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5028 dialog_token, status_code,
5029 nla_data(info->attrs[NL80211_ATTR_IE]),
5030 nla_len(info->attrs[NL80211_ATTR_IE]));
5033 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5036 struct net_device *dev = info->user_ptr[1];
5037 enum nl80211_tdls_operation operation;
5040 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5041 !rdev->ops->tdls_oper)
5044 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5045 !info->attrs[NL80211_ATTR_MAC])
5048 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5049 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5051 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5054 static int nl80211_remain_on_channel(struct sk_buff *skb,
5055 struct genl_info *info)
5057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5058 struct net_device *dev = info->user_ptr[1];
5059 struct ieee80211_channel *chan;
5060 struct sk_buff *msg;
5063 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5067 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5068 !info->attrs[NL80211_ATTR_DURATION])
5071 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5074 * We should be on that channel for at least one jiffie,
5075 * and more than 5 seconds seems excessive.
5077 if (!duration || !msecs_to_jiffies(duration) ||
5078 duration > rdev->wiphy.max_remain_on_channel_duration)
5081 if (!rdev->ops->remain_on_channel)
5084 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5085 channel_type = nla_get_u32(
5086 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5087 if (channel_type != NL80211_CHAN_NO_HT &&
5088 channel_type != NL80211_CHAN_HT20 &&
5089 channel_type != NL80211_CHAN_HT40PLUS &&
5090 channel_type != NL80211_CHAN_HT40MINUS)
5094 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5095 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5099 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5103 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5104 NL80211_CMD_REMAIN_ON_CHANNEL);
5111 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5112 channel_type, duration, &cookie);
5117 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5119 genlmsg_end(msg, hdr);
5121 return genlmsg_reply(msg, info);
5130 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5131 struct genl_info *info)
5133 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5134 struct net_device *dev = info->user_ptr[1];
5137 if (!info->attrs[NL80211_ATTR_COOKIE])
5140 if (!rdev->ops->cancel_remain_on_channel)
5143 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5145 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5148 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5149 u8 *rates, u8 rates_len)
5154 for (i = 0; i < rates_len; i++) {
5155 int rate = (rates[i] & 0x7f) * 5;
5157 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5158 struct ieee80211_rate *srate =
5159 &sband->bitrates[ridx];
5160 if (rate == srate->bitrate) {
5165 if (ridx == sband->n_bitrates)
5166 return 0; /* rate not found */
5172 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5173 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5174 .len = NL80211_MAX_SUPP_RATES },
5177 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5178 struct genl_info *info)
5180 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5182 struct cfg80211_bitrate_mask mask;
5184 struct net_device *dev = info->user_ptr[1];
5185 struct nlattr *tx_rates;
5186 struct ieee80211_supported_band *sband;
5188 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5191 if (!rdev->ops->set_bitrate_mask)
5194 memset(&mask, 0, sizeof(mask));
5195 /* Default to all rates enabled */
5196 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5197 sband = rdev->wiphy.bands[i];
5198 mask.control[i].legacy =
5199 sband ? (1 << sband->n_bitrates) - 1 : 0;
5203 * The nested attribute uses enum nl80211_band as the index. This maps
5204 * directly to the enum ieee80211_band values used in cfg80211.
5206 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5208 enum ieee80211_band band = nla_type(tx_rates);
5209 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5211 sband = rdev->wiphy.bands[band];
5214 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5215 nla_len(tx_rates), nl80211_txattr_policy);
5216 if (tb[NL80211_TXRATE_LEGACY]) {
5217 mask.control[band].legacy = rateset_to_mask(
5219 nla_data(tb[NL80211_TXRATE_LEGACY]),
5220 nla_len(tb[NL80211_TXRATE_LEGACY]));
5221 if (mask.control[band].legacy == 0)
5226 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5229 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5232 struct net_device *dev = info->user_ptr[1];
5233 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5235 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5238 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5239 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5241 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5242 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5243 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5244 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5245 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5246 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5247 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5250 /* not much point in registering if we can't reply */
5251 if (!rdev->ops->mgmt_tx)
5254 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5256 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5257 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5260 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5263 struct net_device *dev = info->user_ptr[1];
5264 struct ieee80211_channel *chan;
5265 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5266 bool channel_type_valid = false;
5271 struct sk_buff *msg;
5272 unsigned int wait = 0;
5276 if (!info->attrs[NL80211_ATTR_FRAME] ||
5277 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5280 if (!rdev->ops->mgmt_tx)
5283 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5284 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5285 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5286 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5287 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5288 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5289 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5292 if (info->attrs[NL80211_ATTR_DURATION]) {
5293 if (!rdev->ops->mgmt_tx_cancel_wait)
5295 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5298 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5299 channel_type = nla_get_u32(
5300 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5301 if (channel_type != NL80211_CHAN_NO_HT &&
5302 channel_type != NL80211_CHAN_HT20 &&
5303 channel_type != NL80211_CHAN_HT40PLUS &&
5304 channel_type != NL80211_CHAN_HT40MINUS)
5306 channel_type_valid = true;
5309 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5311 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5313 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5314 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5318 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5322 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5329 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5330 channel_type_valid, wait,
5331 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5332 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5337 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5339 genlmsg_end(msg, hdr);
5340 return genlmsg_reply(msg, info);
5349 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5352 struct net_device *dev = info->user_ptr[1];
5355 if (!info->attrs[NL80211_ATTR_COOKIE])
5358 if (!rdev->ops->mgmt_tx_cancel_wait)
5361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5363 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5364 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5366 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5369 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5371 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5374 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5377 struct wireless_dev *wdev;
5378 struct net_device *dev = info->user_ptr[1];
5383 if (!info->attrs[NL80211_ATTR_PS_STATE])
5386 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5388 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5391 wdev = dev->ieee80211_ptr;
5393 if (!rdev->ops->set_power_mgmt)
5396 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5398 if (state == wdev->ps)
5401 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5408 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5410 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5411 enum nl80211_ps_state ps_state;
5412 struct wireless_dev *wdev;
5413 struct net_device *dev = info->user_ptr[1];
5414 struct sk_buff *msg;
5418 wdev = dev->ieee80211_ptr;
5420 if (!rdev->ops->set_power_mgmt)
5423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5427 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5428 NL80211_CMD_GET_POWER_SAVE);
5435 ps_state = NL80211_PS_ENABLED;
5437 ps_state = NL80211_PS_DISABLED;
5439 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5441 genlmsg_end(msg, hdr);
5442 return genlmsg_reply(msg, info);
5451 static struct nla_policy
5452 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5453 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5454 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5455 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5458 static int nl80211_set_cqm_rssi(struct genl_info *info,
5459 s32 threshold, u32 hysteresis)
5461 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5462 struct wireless_dev *wdev;
5463 struct net_device *dev = info->user_ptr[1];
5468 wdev = dev->ieee80211_ptr;
5470 if (!rdev->ops->set_cqm_rssi_config)
5473 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5474 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5477 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5478 threshold, hysteresis);
5481 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5483 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5487 cqm = info->attrs[NL80211_ATTR_CQM];
5493 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5494 nl80211_attr_cqm_policy);
5498 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5499 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5502 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5503 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5504 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5512 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5515 struct net_device *dev = info->user_ptr[1];
5516 struct mesh_config cfg;
5517 struct mesh_setup setup;
5520 /* start with default */
5521 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5522 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5524 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5525 /* and parse parameters if given */
5526 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5531 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5532 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5535 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5536 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5538 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5539 /* parse additional setup parameters if given */
5540 err = nl80211_parse_mesh_setup(info, &setup);
5545 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5548 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5551 struct net_device *dev = info->user_ptr[1];
5553 return cfg80211_leave_mesh(rdev, dev);
5556 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5558 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5559 struct sk_buff *msg;
5562 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5569 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5570 NL80211_CMD_GET_WOWLAN);
5572 goto nla_put_failure;
5575 struct nlattr *nl_wowlan;
5577 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5579 goto nla_put_failure;
5581 if (rdev->wowlan->any)
5582 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5583 if (rdev->wowlan->disconnect)
5584 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5585 if (rdev->wowlan->magic_pkt)
5586 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5587 if (rdev->wowlan->gtk_rekey_failure)
5588 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5589 if (rdev->wowlan->eap_identity_req)
5590 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5591 if (rdev->wowlan->four_way_handshake)
5592 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5593 if (rdev->wowlan->rfkill_release)
5594 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
5595 if (rdev->wowlan->n_patterns) {
5596 struct nlattr *nl_pats, *nl_pat;
5599 nl_pats = nla_nest_start(msg,
5600 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5602 goto nla_put_failure;
5604 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5605 nl_pat = nla_nest_start(msg, i + 1);
5607 goto nla_put_failure;
5608 pat_len = rdev->wowlan->patterns[i].pattern_len;
5609 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5610 DIV_ROUND_UP(pat_len, 8),
5611 rdev->wowlan->patterns[i].mask);
5612 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5614 rdev->wowlan->patterns[i].pattern);
5615 nla_nest_end(msg, nl_pat);
5617 nla_nest_end(msg, nl_pats);
5620 nla_nest_end(msg, nl_wowlan);
5623 genlmsg_end(msg, hdr);
5624 return genlmsg_reply(msg, info);
5631 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5633 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5634 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5635 struct cfg80211_wowlan no_triggers = {};
5636 struct cfg80211_wowlan new_triggers = {};
5637 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5640 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5643 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5646 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5647 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5648 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5649 nl80211_wowlan_policy);
5653 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5654 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5656 new_triggers.any = true;
5659 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5660 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5662 new_triggers.disconnect = true;
5665 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5666 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5668 new_triggers.magic_pkt = true;
5671 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5674 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5675 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5677 new_triggers.gtk_rekey_failure = true;
5680 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5681 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5683 new_triggers.eap_identity_req = true;
5686 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5687 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5689 new_triggers.four_way_handshake = true;
5692 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5693 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5695 new_triggers.rfkill_release = true;
5698 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5701 int rem, pat_len, mask_len;
5702 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5704 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5707 if (n_patterns > wowlan->n_patterns)
5710 new_triggers.patterns = kcalloc(n_patterns,
5711 sizeof(new_triggers.patterns[0]),
5713 if (!new_triggers.patterns)
5716 new_triggers.n_patterns = n_patterns;
5719 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5721 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5722 nla_data(pat), nla_len(pat), NULL);
5724 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5725 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5727 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5728 mask_len = DIV_ROUND_UP(pat_len, 8);
5729 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5732 if (pat_len > wowlan->pattern_max_len ||
5733 pat_len < wowlan->pattern_min_len)
5736 new_triggers.patterns[i].mask =
5737 kmalloc(mask_len + pat_len, GFP_KERNEL);
5738 if (!new_triggers.patterns[i].mask) {
5742 new_triggers.patterns[i].pattern =
5743 new_triggers.patterns[i].mask + mask_len;
5744 memcpy(new_triggers.patterns[i].mask,
5745 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5747 new_triggers.patterns[i].pattern_len = pat_len;
5748 memcpy(new_triggers.patterns[i].pattern,
5749 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5755 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5756 struct cfg80211_wowlan *ntrig;
5757 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5763 cfg80211_rdev_free_wowlan(rdev);
5764 rdev->wowlan = ntrig;
5767 cfg80211_rdev_free_wowlan(rdev);
5768 rdev->wowlan = NULL;
5773 for (i = 0; i < new_triggers.n_patterns; i++)
5774 kfree(new_triggers.patterns[i].mask);
5775 kfree(new_triggers.patterns);
5779 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5782 struct net_device *dev = info->user_ptr[1];
5783 struct wireless_dev *wdev = dev->ieee80211_ptr;
5784 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5785 struct cfg80211_gtk_rekey_data rekey_data;
5788 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5791 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5792 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5793 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5794 nl80211_rekey_policy);
5798 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5800 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5802 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5805 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5807 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5809 memcpy(rekey_data.replay_ctr,
5810 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5811 NL80211_REPLAY_CTR_LEN);
5814 if (!wdev->current_bss) {
5819 if (!rdev->ops->set_rekey_data) {
5824 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5830 #define NL80211_FLAG_NEED_WIPHY 0x01
5831 #define NL80211_FLAG_NEED_NETDEV 0x02
5832 #define NL80211_FLAG_NEED_RTNL 0x04
5833 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5834 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5835 NL80211_FLAG_CHECK_NETDEV_UP)
5837 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5838 struct genl_info *info)
5840 struct cfg80211_registered_device *rdev;
5841 struct net_device *dev;
5843 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5848 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5849 rdev = cfg80211_get_dev_from_info(info);
5853 return PTR_ERR(rdev);
5855 info->user_ptr[0] = rdev;
5856 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5857 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5863 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5864 !netif_running(dev)) {
5865 cfg80211_unlock_rdev(rdev);
5871 info->user_ptr[0] = rdev;
5872 info->user_ptr[1] = dev;
5878 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5879 struct genl_info *info)
5881 if (info->user_ptr[0])
5882 cfg80211_unlock_rdev(info->user_ptr[0]);
5883 if (info->user_ptr[1])
5884 dev_put(info->user_ptr[1]);
5885 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5889 static struct genl_ops nl80211_ops[] = {
5891 .cmd = NL80211_CMD_GET_WIPHY,
5892 .doit = nl80211_get_wiphy,
5893 .dumpit = nl80211_dump_wiphy,
5894 .policy = nl80211_policy,
5895 /* can be retrieved by unprivileged users */
5896 .internal_flags = NL80211_FLAG_NEED_WIPHY,
5899 .cmd = NL80211_CMD_SET_WIPHY,
5900 .doit = nl80211_set_wiphy,
5901 .policy = nl80211_policy,
5902 .flags = GENL_ADMIN_PERM,
5903 .internal_flags = NL80211_FLAG_NEED_RTNL,
5906 .cmd = NL80211_CMD_GET_INTERFACE,
5907 .doit = nl80211_get_interface,
5908 .dumpit = nl80211_dump_interface,
5909 .policy = nl80211_policy,
5910 /* can be retrieved by unprivileged users */
5911 .internal_flags = NL80211_FLAG_NEED_NETDEV,
5914 .cmd = NL80211_CMD_SET_INTERFACE,
5915 .doit = nl80211_set_interface,
5916 .policy = nl80211_policy,
5917 .flags = GENL_ADMIN_PERM,
5918 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5919 NL80211_FLAG_NEED_RTNL,
5922 .cmd = NL80211_CMD_NEW_INTERFACE,
5923 .doit = nl80211_new_interface,
5924 .policy = nl80211_policy,
5925 .flags = GENL_ADMIN_PERM,
5926 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5927 NL80211_FLAG_NEED_RTNL,
5930 .cmd = NL80211_CMD_DEL_INTERFACE,
5931 .doit = nl80211_del_interface,
5932 .policy = nl80211_policy,
5933 .flags = GENL_ADMIN_PERM,
5934 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5935 NL80211_FLAG_NEED_RTNL,
5938 .cmd = NL80211_CMD_GET_KEY,
5939 .doit = nl80211_get_key,
5940 .policy = nl80211_policy,
5941 .flags = GENL_ADMIN_PERM,
5942 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5943 NL80211_FLAG_NEED_RTNL,
5946 .cmd = NL80211_CMD_SET_KEY,
5947 .doit = nl80211_set_key,
5948 .policy = nl80211_policy,
5949 .flags = GENL_ADMIN_PERM,
5950 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5951 NL80211_FLAG_NEED_RTNL,
5954 .cmd = NL80211_CMD_NEW_KEY,
5955 .doit = nl80211_new_key,
5956 .policy = nl80211_policy,
5957 .flags = GENL_ADMIN_PERM,
5958 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5959 NL80211_FLAG_NEED_RTNL,
5962 .cmd = NL80211_CMD_DEL_KEY,
5963 .doit = nl80211_del_key,
5964 .policy = nl80211_policy,
5965 .flags = GENL_ADMIN_PERM,
5966 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5967 NL80211_FLAG_NEED_RTNL,
5970 .cmd = NL80211_CMD_SET_BEACON,
5971 .policy = nl80211_policy,
5972 .flags = GENL_ADMIN_PERM,
5973 .doit = nl80211_addset_beacon,
5974 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5975 NL80211_FLAG_NEED_RTNL,
5978 .cmd = NL80211_CMD_NEW_BEACON,
5979 .policy = nl80211_policy,
5980 .flags = GENL_ADMIN_PERM,
5981 .doit = nl80211_addset_beacon,
5982 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5983 NL80211_FLAG_NEED_RTNL,
5986 .cmd = NL80211_CMD_DEL_BEACON,
5987 .policy = nl80211_policy,
5988 .flags = GENL_ADMIN_PERM,
5989 .doit = nl80211_del_beacon,
5990 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5991 NL80211_FLAG_NEED_RTNL,
5994 .cmd = NL80211_CMD_GET_STATION,
5995 .doit = nl80211_get_station,
5996 .dumpit = nl80211_dump_station,
5997 .policy = nl80211_policy,
5998 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5999 NL80211_FLAG_NEED_RTNL,
6002 .cmd = NL80211_CMD_SET_STATION,
6003 .doit = nl80211_set_station,
6004 .policy = nl80211_policy,
6005 .flags = GENL_ADMIN_PERM,
6006 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6007 NL80211_FLAG_NEED_RTNL,
6010 .cmd = NL80211_CMD_NEW_STATION,
6011 .doit = nl80211_new_station,
6012 .policy = nl80211_policy,
6013 .flags = GENL_ADMIN_PERM,
6014 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6015 NL80211_FLAG_NEED_RTNL,
6018 .cmd = NL80211_CMD_DEL_STATION,
6019 .doit = nl80211_del_station,
6020 .policy = nl80211_policy,
6021 .flags = GENL_ADMIN_PERM,
6022 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6023 NL80211_FLAG_NEED_RTNL,
6026 .cmd = NL80211_CMD_GET_MPATH,
6027 .doit = nl80211_get_mpath,
6028 .dumpit = nl80211_dump_mpath,
6029 .policy = nl80211_policy,
6030 .flags = GENL_ADMIN_PERM,
6031 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6032 NL80211_FLAG_NEED_RTNL,
6035 .cmd = NL80211_CMD_SET_MPATH,
6036 .doit = nl80211_set_mpath,
6037 .policy = nl80211_policy,
6038 .flags = GENL_ADMIN_PERM,
6039 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6040 NL80211_FLAG_NEED_RTNL,
6043 .cmd = NL80211_CMD_NEW_MPATH,
6044 .doit = nl80211_new_mpath,
6045 .policy = nl80211_policy,
6046 .flags = GENL_ADMIN_PERM,
6047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6048 NL80211_FLAG_NEED_RTNL,
6051 .cmd = NL80211_CMD_DEL_MPATH,
6052 .doit = nl80211_del_mpath,
6053 .policy = nl80211_policy,
6054 .flags = GENL_ADMIN_PERM,
6055 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6056 NL80211_FLAG_NEED_RTNL,
6059 .cmd = NL80211_CMD_SET_BSS,
6060 .doit = nl80211_set_bss,
6061 .policy = nl80211_policy,
6062 .flags = GENL_ADMIN_PERM,
6063 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6064 NL80211_FLAG_NEED_RTNL,
6067 .cmd = NL80211_CMD_GET_REG,
6068 .doit = nl80211_get_reg,
6069 .policy = nl80211_policy,
6070 /* can be retrieved by unprivileged users */
6073 .cmd = NL80211_CMD_SET_REG,
6074 .doit = nl80211_set_reg,
6075 .policy = nl80211_policy,
6076 .flags = GENL_ADMIN_PERM,
6079 .cmd = NL80211_CMD_REQ_SET_REG,
6080 .doit = nl80211_req_set_reg,
6081 .policy = nl80211_policy,
6082 .flags = GENL_ADMIN_PERM,
6085 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6086 .doit = nl80211_get_mesh_config,
6087 .policy = nl80211_policy,
6088 /* can be retrieved by unprivileged users */
6089 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6090 NL80211_FLAG_NEED_RTNL,
6093 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6094 .doit = nl80211_update_mesh_config,
6095 .policy = nl80211_policy,
6096 .flags = GENL_ADMIN_PERM,
6097 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6098 NL80211_FLAG_NEED_RTNL,
6101 .cmd = NL80211_CMD_TRIGGER_SCAN,
6102 .doit = nl80211_trigger_scan,
6103 .policy = nl80211_policy,
6104 .flags = GENL_ADMIN_PERM,
6105 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6106 NL80211_FLAG_NEED_RTNL,
6109 .cmd = NL80211_CMD_GET_SCAN,
6110 .policy = nl80211_policy,
6111 .dumpit = nl80211_dump_scan,
6114 .cmd = NL80211_CMD_START_SCHED_SCAN,
6115 .doit = nl80211_start_sched_scan,
6116 .policy = nl80211_policy,
6117 .flags = GENL_ADMIN_PERM,
6118 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6119 NL80211_FLAG_NEED_RTNL,
6122 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6123 .doit = nl80211_stop_sched_scan,
6124 .policy = nl80211_policy,
6125 .flags = GENL_ADMIN_PERM,
6126 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6127 NL80211_FLAG_NEED_RTNL,
6130 .cmd = NL80211_CMD_AUTHENTICATE,
6131 .doit = nl80211_authenticate,
6132 .policy = nl80211_policy,
6133 .flags = GENL_ADMIN_PERM,
6134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6135 NL80211_FLAG_NEED_RTNL,
6138 .cmd = NL80211_CMD_ASSOCIATE,
6139 .doit = nl80211_associate,
6140 .policy = nl80211_policy,
6141 .flags = GENL_ADMIN_PERM,
6142 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6143 NL80211_FLAG_NEED_RTNL,
6146 .cmd = NL80211_CMD_DEAUTHENTICATE,
6147 .doit = nl80211_deauthenticate,
6148 .policy = nl80211_policy,
6149 .flags = GENL_ADMIN_PERM,
6150 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6151 NL80211_FLAG_NEED_RTNL,
6154 .cmd = NL80211_CMD_DISASSOCIATE,
6155 .doit = nl80211_disassociate,
6156 .policy = nl80211_policy,
6157 .flags = GENL_ADMIN_PERM,
6158 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6159 NL80211_FLAG_NEED_RTNL,
6162 .cmd = NL80211_CMD_JOIN_IBSS,
6163 .doit = nl80211_join_ibss,
6164 .policy = nl80211_policy,
6165 .flags = GENL_ADMIN_PERM,
6166 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6167 NL80211_FLAG_NEED_RTNL,
6170 .cmd = NL80211_CMD_LEAVE_IBSS,
6171 .doit = nl80211_leave_ibss,
6172 .policy = nl80211_policy,
6173 .flags = GENL_ADMIN_PERM,
6174 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6175 NL80211_FLAG_NEED_RTNL,
6177 #ifdef CONFIG_NL80211_TESTMODE
6179 .cmd = NL80211_CMD_TESTMODE,
6180 .doit = nl80211_testmode_do,
6181 .dumpit = nl80211_testmode_dump,
6182 .policy = nl80211_policy,
6183 .flags = GENL_ADMIN_PERM,
6184 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6185 NL80211_FLAG_NEED_RTNL,
6189 .cmd = NL80211_CMD_CONNECT,
6190 .doit = nl80211_connect,
6191 .policy = nl80211_policy,
6192 .flags = GENL_ADMIN_PERM,
6193 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6194 NL80211_FLAG_NEED_RTNL,
6197 .cmd = NL80211_CMD_DISCONNECT,
6198 .doit = nl80211_disconnect,
6199 .policy = nl80211_policy,
6200 .flags = GENL_ADMIN_PERM,
6201 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6202 NL80211_FLAG_NEED_RTNL,
6205 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6206 .doit = nl80211_wiphy_netns,
6207 .policy = nl80211_policy,
6208 .flags = GENL_ADMIN_PERM,
6209 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6210 NL80211_FLAG_NEED_RTNL,
6213 .cmd = NL80211_CMD_GET_SURVEY,
6214 .policy = nl80211_policy,
6215 .dumpit = nl80211_dump_survey,
6218 .cmd = NL80211_CMD_SET_PMKSA,
6219 .doit = nl80211_setdel_pmksa,
6220 .policy = nl80211_policy,
6221 .flags = GENL_ADMIN_PERM,
6222 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6223 NL80211_FLAG_NEED_RTNL,
6226 .cmd = NL80211_CMD_DEL_PMKSA,
6227 .doit = nl80211_setdel_pmksa,
6228 .policy = nl80211_policy,
6229 .flags = GENL_ADMIN_PERM,
6230 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6231 NL80211_FLAG_NEED_RTNL,
6234 .cmd = NL80211_CMD_FLUSH_PMKSA,
6235 .doit = nl80211_flush_pmksa,
6236 .policy = nl80211_policy,
6237 .flags = GENL_ADMIN_PERM,
6238 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6239 NL80211_FLAG_NEED_RTNL,
6242 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6243 .doit = nl80211_remain_on_channel,
6244 .policy = nl80211_policy,
6245 .flags = GENL_ADMIN_PERM,
6246 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6247 NL80211_FLAG_NEED_RTNL,
6250 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6251 .doit = nl80211_cancel_remain_on_channel,
6252 .policy = nl80211_policy,
6253 .flags = GENL_ADMIN_PERM,
6254 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6255 NL80211_FLAG_NEED_RTNL,
6258 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6259 .doit = nl80211_set_tx_bitrate_mask,
6260 .policy = nl80211_policy,
6261 .flags = GENL_ADMIN_PERM,
6262 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6263 NL80211_FLAG_NEED_RTNL,
6266 .cmd = NL80211_CMD_REGISTER_FRAME,
6267 .doit = nl80211_register_mgmt,
6268 .policy = nl80211_policy,
6269 .flags = GENL_ADMIN_PERM,
6270 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6271 NL80211_FLAG_NEED_RTNL,
6274 .cmd = NL80211_CMD_FRAME,
6275 .doit = nl80211_tx_mgmt,
6276 .policy = nl80211_policy,
6277 .flags = GENL_ADMIN_PERM,
6278 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6279 NL80211_FLAG_NEED_RTNL,
6282 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6283 .doit = nl80211_tx_mgmt_cancel_wait,
6284 .policy = nl80211_policy,
6285 .flags = GENL_ADMIN_PERM,
6286 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6287 NL80211_FLAG_NEED_RTNL,
6290 .cmd = NL80211_CMD_SET_POWER_SAVE,
6291 .doit = nl80211_set_power_save,
6292 .policy = nl80211_policy,
6293 .flags = GENL_ADMIN_PERM,
6294 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6295 NL80211_FLAG_NEED_RTNL,
6298 .cmd = NL80211_CMD_GET_POWER_SAVE,
6299 .doit = nl80211_get_power_save,
6300 .policy = nl80211_policy,
6301 /* can be retrieved by unprivileged users */
6302 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6303 NL80211_FLAG_NEED_RTNL,
6306 .cmd = NL80211_CMD_SET_CQM,
6307 .doit = nl80211_set_cqm,
6308 .policy = nl80211_policy,
6309 .flags = GENL_ADMIN_PERM,
6310 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6311 NL80211_FLAG_NEED_RTNL,
6314 .cmd = NL80211_CMD_SET_CHANNEL,
6315 .doit = nl80211_set_channel,
6316 .policy = nl80211_policy,
6317 .flags = GENL_ADMIN_PERM,
6318 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6319 NL80211_FLAG_NEED_RTNL,
6322 .cmd = NL80211_CMD_SET_WDS_PEER,
6323 .doit = nl80211_set_wds_peer,
6324 .policy = nl80211_policy,
6325 .flags = GENL_ADMIN_PERM,
6326 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6327 NL80211_FLAG_NEED_RTNL,
6330 .cmd = NL80211_CMD_JOIN_MESH,
6331 .doit = nl80211_join_mesh,
6332 .policy = nl80211_policy,
6333 .flags = GENL_ADMIN_PERM,
6334 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6335 NL80211_FLAG_NEED_RTNL,
6338 .cmd = NL80211_CMD_LEAVE_MESH,
6339 .doit = nl80211_leave_mesh,
6340 .policy = nl80211_policy,
6341 .flags = GENL_ADMIN_PERM,
6342 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6343 NL80211_FLAG_NEED_RTNL,
6346 .cmd = NL80211_CMD_GET_WOWLAN,
6347 .doit = nl80211_get_wowlan,
6348 .policy = nl80211_policy,
6349 /* can be retrieved by unprivileged users */
6350 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6351 NL80211_FLAG_NEED_RTNL,
6354 .cmd = NL80211_CMD_SET_WOWLAN,
6355 .doit = nl80211_set_wowlan,
6356 .policy = nl80211_policy,
6357 .flags = GENL_ADMIN_PERM,
6358 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6359 NL80211_FLAG_NEED_RTNL,
6362 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6363 .doit = nl80211_set_rekey_data,
6364 .policy = nl80211_policy,
6365 .flags = GENL_ADMIN_PERM,
6366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6367 NL80211_FLAG_NEED_RTNL,
6370 .cmd = NL80211_CMD_TDLS_MGMT,
6371 .doit = nl80211_tdls_mgmt,
6372 .policy = nl80211_policy,
6373 .flags = GENL_ADMIN_PERM,
6374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6375 NL80211_FLAG_NEED_RTNL,
6378 .cmd = NL80211_CMD_TDLS_OPER,
6379 .doit = nl80211_tdls_oper,
6380 .policy = nl80211_policy,
6381 .flags = GENL_ADMIN_PERM,
6382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6383 NL80211_FLAG_NEED_RTNL,
6387 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6391 /* multicast groups */
6392 static struct genl_multicast_group nl80211_config_mcgrp = {
6395 static struct genl_multicast_group nl80211_scan_mcgrp = {
6398 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6399 .name = "regulatory",
6402 /* notification functions */
6404 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6406 struct sk_buff *msg;
6408 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6412 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6417 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6418 nl80211_config_mcgrp.id, GFP_KERNEL);
6421 static int nl80211_add_scan_req(struct sk_buff *msg,
6422 struct cfg80211_registered_device *rdev)
6424 struct cfg80211_scan_request *req = rdev->scan_req;
6425 struct nlattr *nest;
6428 ASSERT_RDEV_LOCK(rdev);
6433 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6435 goto nla_put_failure;
6436 for (i = 0; i < req->n_ssids; i++)
6437 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6438 nla_nest_end(msg, nest);
6440 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6442 goto nla_put_failure;
6443 for (i = 0; i < req->n_channels; i++)
6444 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6445 nla_nest_end(msg, nest);
6448 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6455 static int nl80211_send_scan_msg(struct sk_buff *msg,
6456 struct cfg80211_registered_device *rdev,
6457 struct net_device *netdev,
6458 u32 pid, u32 seq, int flags,
6463 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6467 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6468 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6470 /* ignore errors and send incomplete event anyway */
6471 nl80211_add_scan_req(msg, rdev);
6473 return genlmsg_end(msg, hdr);
6476 genlmsg_cancel(msg, hdr);
6481 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6482 struct cfg80211_registered_device *rdev,
6483 struct net_device *netdev,
6484 u32 pid, u32 seq, int flags, u32 cmd)
6488 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6492 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6493 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6495 return genlmsg_end(msg, hdr);
6498 genlmsg_cancel(msg, hdr);
6502 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6503 struct net_device *netdev)
6505 struct sk_buff *msg;
6507 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6511 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6512 NL80211_CMD_TRIGGER_SCAN) < 0) {
6517 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6518 nl80211_scan_mcgrp.id, GFP_KERNEL);
6521 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6522 struct net_device *netdev)
6524 struct sk_buff *msg;
6526 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6530 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6531 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
6536 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6537 nl80211_scan_mcgrp.id, GFP_KERNEL);
6540 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6541 struct net_device *netdev)
6543 struct sk_buff *msg;
6545 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6549 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6550 NL80211_CMD_SCAN_ABORTED) < 0) {
6555 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6556 nl80211_scan_mcgrp.id, GFP_KERNEL);
6559 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6560 struct net_device *netdev)
6562 struct sk_buff *msg;
6564 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6568 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6569 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6574 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6575 nl80211_scan_mcgrp.id, GFP_KERNEL);
6578 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6579 struct net_device *netdev, u32 cmd)
6581 struct sk_buff *msg;
6583 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6587 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6592 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6593 nl80211_scan_mcgrp.id, GFP_KERNEL);
6597 * This can happen on global regulatory changes or device specific settings
6598 * based on custom world regulatory domains.
6600 void nl80211_send_reg_change_event(struct regulatory_request *request)
6602 struct sk_buff *msg;
6605 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6609 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6615 /* Userspace can always count this one always being set */
6616 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6618 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6619 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6620 NL80211_REGDOM_TYPE_WORLD);
6621 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6622 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6623 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6624 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6626 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6627 NL80211_REGDOM_TYPE_INTERSECTION);
6629 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6630 NL80211_REGDOM_TYPE_COUNTRY);
6631 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6634 if (wiphy_idx_valid(request->wiphy_idx))
6635 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6637 if (genlmsg_end(msg, hdr) < 0) {
6643 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6650 genlmsg_cancel(msg, hdr);
6654 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6655 struct net_device *netdev,
6656 const u8 *buf, size_t len,
6657 enum nl80211_commands cmd, gfp_t gfp)
6659 struct sk_buff *msg;
6662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6666 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6672 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6673 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6674 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6676 if (genlmsg_end(msg, hdr) < 0) {
6681 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6682 nl80211_mlme_mcgrp.id, gfp);
6686 genlmsg_cancel(msg, hdr);
6690 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
6691 struct net_device *netdev, const u8 *buf,
6692 size_t len, gfp_t gfp)
6694 nl80211_send_mlme_event(rdev, netdev, buf, len,
6695 NL80211_CMD_AUTHENTICATE, gfp);
6698 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6699 struct net_device *netdev, const u8 *buf,
6700 size_t len, gfp_t gfp)
6702 nl80211_send_mlme_event(rdev, netdev, buf, len,
6703 NL80211_CMD_ASSOCIATE, gfp);
6706 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
6707 struct net_device *netdev, const u8 *buf,
6708 size_t len, gfp_t gfp)
6710 nl80211_send_mlme_event(rdev, netdev, buf, len,
6711 NL80211_CMD_DEAUTHENTICATE, gfp);
6714 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6715 struct net_device *netdev, const u8 *buf,
6716 size_t len, gfp_t gfp)
6718 nl80211_send_mlme_event(rdev, netdev, buf, len,
6719 NL80211_CMD_DISASSOCIATE, gfp);
6722 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6723 struct net_device *netdev, const u8 *buf,
6724 size_t len, gfp_t gfp)
6726 nl80211_send_mlme_event(rdev, netdev, buf, len,
6727 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6730 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6731 struct net_device *netdev, const u8 *buf,
6732 size_t len, gfp_t gfp)
6734 nl80211_send_mlme_event(rdev, netdev, buf, len,
6735 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6738 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6739 struct net_device *netdev, int cmd,
6740 const u8 *addr, gfp_t gfp)
6742 struct sk_buff *msg;
6745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6749 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6755 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6756 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6757 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6758 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6760 if (genlmsg_end(msg, hdr) < 0) {
6765 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6766 nl80211_mlme_mcgrp.id, gfp);
6770 genlmsg_cancel(msg, hdr);
6774 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
6775 struct net_device *netdev, const u8 *addr,
6778 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
6782 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
6783 struct net_device *netdev, const u8 *addr,
6786 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6790 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6791 struct net_device *netdev, const u8 *bssid,
6792 const u8 *req_ie, size_t req_ie_len,
6793 const u8 *resp_ie, size_t resp_ie_len,
6794 u16 status, gfp_t gfp)
6796 struct sk_buff *msg;
6799 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6803 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6809 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6810 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6812 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6813 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6815 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6817 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6819 if (genlmsg_end(msg, hdr) < 0) {
6824 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6825 nl80211_mlme_mcgrp.id, gfp);
6829 genlmsg_cancel(msg, hdr);
6834 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6835 struct net_device *netdev, const u8 *bssid,
6836 const u8 *req_ie, size_t req_ie_len,
6837 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6839 struct sk_buff *msg;
6842 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6846 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6852 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6853 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6854 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6856 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6858 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6860 if (genlmsg_end(msg, hdr) < 0) {
6865 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6866 nl80211_mlme_mcgrp.id, gfp);
6870 genlmsg_cancel(msg, hdr);
6875 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6876 struct net_device *netdev, u16 reason,
6877 const u8 *ie, size_t ie_len, bool from_ap)
6879 struct sk_buff *msg;
6882 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6886 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6892 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6893 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6894 if (from_ap && reason)
6895 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6897 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6899 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6901 if (genlmsg_end(msg, hdr) < 0) {
6906 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6907 nl80211_mlme_mcgrp.id, GFP_KERNEL);
6911 genlmsg_cancel(msg, hdr);
6916 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6917 struct net_device *netdev, const u8 *bssid,
6920 struct sk_buff *msg;
6923 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6927 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6933 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6934 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6935 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6937 if (genlmsg_end(msg, hdr) < 0) {
6942 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6943 nl80211_mlme_mcgrp.id, gfp);
6947 genlmsg_cancel(msg, hdr);
6951 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6952 struct net_device *netdev,
6953 const u8 *macaddr, const u8* ie, u8 ie_len,
6956 struct sk_buff *msg;
6959 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6963 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6969 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6970 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6971 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6973 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6975 if (genlmsg_end(msg, hdr) < 0) {
6980 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6981 nl80211_mlme_mcgrp.id, gfp);
6985 genlmsg_cancel(msg, hdr);
6989 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6990 struct net_device *netdev, const u8 *addr,
6991 enum nl80211_key_type key_type, int key_id,
6992 const u8 *tsc, gfp_t gfp)
6994 struct sk_buff *msg;
6997 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7001 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7007 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7008 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7010 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7011 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
7013 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
7015 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7017 if (genlmsg_end(msg, hdr) < 0) {
7022 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7023 nl80211_mlme_mcgrp.id, gfp);
7027 genlmsg_cancel(msg, hdr);
7031 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7032 struct ieee80211_channel *channel_before,
7033 struct ieee80211_channel *channel_after)
7035 struct sk_buff *msg;
7037 struct nlattr *nl_freq;
7039 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7043 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7050 * Since we are applying the beacon hint to a wiphy we know its
7051 * wiphy_idx is valid
7053 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7056 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7058 goto nla_put_failure;
7059 if (nl80211_msg_put_channel(msg, channel_before))
7060 goto nla_put_failure;
7061 nla_nest_end(msg, nl_freq);
7064 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7066 goto nla_put_failure;
7067 if (nl80211_msg_put_channel(msg, channel_after))
7068 goto nla_put_failure;
7069 nla_nest_end(msg, nl_freq);
7071 if (genlmsg_end(msg, hdr) < 0) {
7077 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7084 genlmsg_cancel(msg, hdr);
7088 static void nl80211_send_remain_on_chan_event(
7089 int cmd, struct cfg80211_registered_device *rdev,
7090 struct net_device *netdev, u64 cookie,
7091 struct ieee80211_channel *chan,
7092 enum nl80211_channel_type channel_type,
7093 unsigned int duration, gfp_t gfp)
7095 struct sk_buff *msg;
7098 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7102 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7108 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7109 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7110 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7111 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7112 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7114 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7115 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7117 if (genlmsg_end(msg, hdr) < 0) {
7122 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7123 nl80211_mlme_mcgrp.id, gfp);
7127 genlmsg_cancel(msg, hdr);
7131 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7132 struct net_device *netdev, u64 cookie,
7133 struct ieee80211_channel *chan,
7134 enum nl80211_channel_type channel_type,
7135 unsigned int duration, gfp_t gfp)
7137 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7138 rdev, netdev, cookie, chan,
7139 channel_type, duration, gfp);
7142 void nl80211_send_remain_on_channel_cancel(
7143 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7144 u64 cookie, struct ieee80211_channel *chan,
7145 enum nl80211_channel_type channel_type, gfp_t gfp)
7147 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7148 rdev, netdev, cookie, chan,
7149 channel_type, 0, gfp);
7152 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7153 struct net_device *dev, const u8 *mac_addr,
7154 struct station_info *sinfo, gfp_t gfp)
7156 struct sk_buff *msg;
7158 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7162 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7167 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7168 nl80211_mlme_mcgrp.id, gfp);
7171 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7172 struct net_device *dev, const u8 *mac_addr,
7175 struct sk_buff *msg;
7178 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7182 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7188 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7189 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7191 if (genlmsg_end(msg, hdr) < 0) {
7196 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7197 nl80211_mlme_mcgrp.id, gfp);
7201 genlmsg_cancel(msg, hdr);
7205 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7206 struct net_device *netdev, u32 nlpid,
7207 int freq, const u8 *buf, size_t len, gfp_t gfp)
7209 struct sk_buff *msg;
7213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7217 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7223 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7224 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7225 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7226 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7228 err = genlmsg_end(msg, hdr);
7234 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7240 genlmsg_cancel(msg, hdr);
7245 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7246 struct net_device *netdev, u64 cookie,
7247 const u8 *buf, size_t len, bool ack,
7250 struct sk_buff *msg;
7253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7257 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7263 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7264 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7265 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7266 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7268 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7270 if (genlmsg_end(msg, hdr) < 0) {
7275 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7279 genlmsg_cancel(msg, hdr);
7284 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7285 struct net_device *netdev,
7286 enum nl80211_cqm_rssi_threshold_event rssi_event,
7289 struct sk_buff *msg;
7290 struct nlattr *pinfoattr;
7293 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7297 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7303 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7304 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7306 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7308 goto nla_put_failure;
7310 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7313 nla_nest_end(msg, pinfoattr);
7315 if (genlmsg_end(msg, hdr) < 0) {
7320 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7321 nl80211_mlme_mcgrp.id, gfp);
7325 genlmsg_cancel(msg, hdr);
7329 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7330 struct net_device *netdev, const u8 *bssid,
7331 const u8 *replay_ctr, gfp_t gfp)
7333 struct sk_buff *msg;
7334 struct nlattr *rekey_attr;
7337 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7341 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7347 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7348 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7349 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7351 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7353 goto nla_put_failure;
7355 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7356 NL80211_REPLAY_CTR_LEN, replay_ctr);
7358 nla_nest_end(msg, rekey_attr);
7360 if (genlmsg_end(msg, hdr) < 0) {
7365 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7366 nl80211_mlme_mcgrp.id, gfp);
7370 genlmsg_cancel(msg, hdr);
7374 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7375 struct net_device *netdev, int index,
7376 const u8 *bssid, bool preauth, gfp_t gfp)
7378 struct sk_buff *msg;
7379 struct nlattr *attr;
7382 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7386 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7392 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7393 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7395 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7397 goto nla_put_failure;
7399 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7400 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7402 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7404 nla_nest_end(msg, attr);
7406 if (genlmsg_end(msg, hdr) < 0) {
7411 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7412 nl80211_mlme_mcgrp.id, gfp);
7416 genlmsg_cancel(msg, hdr);
7421 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7422 struct net_device *netdev, const u8 *peer,
7423 u32 num_packets, gfp_t gfp)
7425 struct sk_buff *msg;
7426 struct nlattr *pinfoattr;
7429 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7433 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7439 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7440 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7441 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7443 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7445 goto nla_put_failure;
7447 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7449 nla_nest_end(msg, pinfoattr);
7451 if (genlmsg_end(msg, hdr) < 0) {
7456 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7457 nl80211_mlme_mcgrp.id, gfp);
7461 genlmsg_cancel(msg, hdr);
7465 static int nl80211_netlink_notify(struct notifier_block * nb,
7466 unsigned long state,
7469 struct netlink_notify *notify = _notify;
7470 struct cfg80211_registered_device *rdev;
7471 struct wireless_dev *wdev;
7473 if (state != NETLINK_URELEASE)
7478 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7479 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
7480 cfg80211_mlme_unregister_socket(wdev, notify->pid);
7487 static struct notifier_block nl80211_netlink_notifier = {
7488 .notifier_call = nl80211_netlink_notify,
7491 /* initialisation/exit functions */
7493 int nl80211_init(void)
7497 err = genl_register_family_with_ops(&nl80211_fam,
7498 nl80211_ops, ARRAY_SIZE(nl80211_ops));
7502 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7506 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7510 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7514 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7518 #ifdef CONFIG_NL80211_TESTMODE
7519 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7524 err = netlink_register_notifier(&nl80211_netlink_notifier);
7530 genl_unregister_family(&nl80211_fam);
7534 void nl80211_exit(void)
7536 netlink_unregister_notifier(&nl80211_netlink_notifier);
7537 genl_unregister_family(&nl80211_fam);