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 },
196 /* policy for the key attributes */
197 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
198 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
199 [NL80211_KEY_IDX] = { .type = NLA_U8 },
200 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
201 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
202 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
203 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
204 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
205 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
208 /* policy for the key default flags */
209 static const struct nla_policy
210 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
211 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
212 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
215 /* policy for WoWLAN attributes */
216 static const struct nla_policy
217 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
218 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
219 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
220 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
221 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
222 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
223 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
224 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
225 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
228 /* policy for GTK rekey offload attributes */
229 static const struct nla_policy
230 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
231 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
232 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
233 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
236 static const struct nla_policy
237 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
238 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
239 .len = IEEE80211_MAX_SSID_LEN },
242 /* ifidx get helper */
243 static int nl80211_get_ifidx(struct netlink_callback *cb)
247 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
248 nl80211_fam.attrbuf, nl80211_fam.maxattr,
253 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
256 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
262 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
263 struct netlink_callback *cb,
264 struct cfg80211_registered_device **rdev,
265 struct net_device **dev)
267 int ifidx = cb->args[0];
271 ifidx = nl80211_get_ifidx(cb);
279 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
285 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
287 err = PTR_ERR(*rdev);
297 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
299 cfg80211_unlock_rdev(rdev);
304 static bool is_valid_ie_attr(const struct nlattr *attr)
312 pos = nla_data(attr);
333 /* message building helper */
334 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
337 /* since there is no private header just add the generic one */
338 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
341 static int nl80211_msg_put_channel(struct sk_buff *msg,
342 struct ieee80211_channel *chan)
344 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
347 if (chan->flags & IEEE80211_CHAN_DISABLED)
348 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
349 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
350 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
351 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
352 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
353 if (chan->flags & IEEE80211_CHAN_RADAR)
354 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
356 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
357 DBM_TO_MBM(chan->max_power));
365 /* netlink command implementations */
372 bool def_uni, def_multi;
375 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
377 struct nlattr *tb[NL80211_KEY_MAX + 1];
378 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
383 k->def = !!tb[NL80211_KEY_DEFAULT];
384 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
393 if (tb[NL80211_KEY_IDX])
394 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
396 if (tb[NL80211_KEY_DATA]) {
397 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
398 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
401 if (tb[NL80211_KEY_SEQ]) {
402 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
403 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
406 if (tb[NL80211_KEY_CIPHER])
407 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
409 if (tb[NL80211_KEY_TYPE]) {
410 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
411 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
415 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
416 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
417 int err = nla_parse_nested(kdt,
418 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
419 tb[NL80211_KEY_DEFAULT_TYPES],
420 nl80211_key_default_policy);
424 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
425 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
431 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
433 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
434 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
435 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
438 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
439 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
440 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
443 if (info->attrs[NL80211_ATTR_KEY_IDX])
444 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
446 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
447 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
449 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
450 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
459 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
460 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
461 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
465 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
466 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
467 int err = nla_parse_nested(
468 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
469 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
470 nl80211_key_default_policy);
474 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
475 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
481 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
485 memset(k, 0, sizeof(*k));
489 if (info->attrs[NL80211_ATTR_KEY])
490 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
492 err = nl80211_parse_key_old(info, k);
497 if (k->def && k->defmgmt)
501 if (k->def_uni || !k->def_multi)
507 if (k->idx < 4 || k->idx > 5)
510 if (k->idx < 0 || k->idx > 3)
513 if (k->idx < 0 || k->idx > 5)
521 static struct cfg80211_cached_keys *
522 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
525 struct key_parse parse;
527 struct cfg80211_cached_keys *result;
528 int rem, err, def = 0;
530 result = kzalloc(sizeof(*result), GFP_KERNEL);
532 return ERR_PTR(-ENOMEM);
535 result->defmgmt = -1;
537 nla_for_each_nested(key, keys, rem) {
538 memset(&parse, 0, sizeof(parse));
541 err = nl80211_parse_key_new(key, &parse);
547 if (parse.idx < 0 || parse.idx > 4)
553 result->def = parse.idx;
554 if (!parse.def_uni || !parse.def_multi)
556 } else if (parse.defmgmt)
558 err = cfg80211_validate_key_settings(rdev, &parse.p,
559 parse.idx, false, NULL);
562 result->params[parse.idx].cipher = parse.p.cipher;
563 result->params[parse.idx].key_len = parse.p.key_len;
564 result->params[parse.idx].key = result->data[parse.idx];
565 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
574 static int nl80211_key_allowed(struct wireless_dev *wdev)
576 ASSERT_WDEV_LOCK(wdev);
578 switch (wdev->iftype) {
579 case NL80211_IFTYPE_AP:
580 case NL80211_IFTYPE_AP_VLAN:
581 case NL80211_IFTYPE_P2P_GO:
582 case NL80211_IFTYPE_MESH_POINT:
584 case NL80211_IFTYPE_ADHOC:
585 if (!wdev->current_bss)
588 case NL80211_IFTYPE_STATION:
589 case NL80211_IFTYPE_P2P_CLIENT:
590 if (wdev->sme_state != CFG80211_SME_CONNECTED)
600 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
602 struct nlattr *nl_modes = nla_nest_start(msg, attr);
606 goto nla_put_failure;
611 NLA_PUT_FLAG(msg, i);
616 nla_nest_end(msg, nl_modes);
623 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
626 struct nlattr *nl_combis;
629 nl_combis = nla_nest_start(msg,
630 NL80211_ATTR_INTERFACE_COMBINATIONS);
632 goto nla_put_failure;
634 for (i = 0; i < wiphy->n_iface_combinations; i++) {
635 const struct ieee80211_iface_combination *c;
636 struct nlattr *nl_combi, *nl_limits;
638 c = &wiphy->iface_combinations[i];
640 nl_combi = nla_nest_start(msg, i + 1);
642 goto nla_put_failure;
644 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
646 goto nla_put_failure;
648 for (j = 0; j < c->n_limits; j++) {
649 struct nlattr *nl_limit;
651 nl_limit = nla_nest_start(msg, j + 1);
653 goto nla_put_failure;
654 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
656 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
658 goto nla_put_failure;
659 nla_nest_end(msg, nl_limit);
662 nla_nest_end(msg, nl_limits);
664 if (c->beacon_int_infra_match)
666 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
667 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
668 c->num_different_channels);
669 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
672 nla_nest_end(msg, nl_combi);
675 nla_nest_end(msg, nl_combis);
682 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
683 struct cfg80211_registered_device *dev)
686 struct nlattr *nl_bands, *nl_band;
687 struct nlattr *nl_freqs, *nl_freq;
688 struct nlattr *nl_rates, *nl_rate;
689 struct nlattr *nl_cmds;
690 enum ieee80211_band band;
691 struct ieee80211_channel *chan;
692 struct ieee80211_rate *rate;
694 const struct ieee80211_txrx_stypes *mgmt_stypes =
695 dev->wiphy.mgmt_stypes;
697 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
701 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
702 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
704 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
705 cfg80211_rdev_list_generation);
707 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
708 dev->wiphy.retry_short);
709 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
710 dev->wiphy.retry_long);
711 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
712 dev->wiphy.frag_threshold);
713 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
714 dev->wiphy.rts_threshold);
715 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
716 dev->wiphy.coverage_class);
717 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
718 dev->wiphy.max_scan_ssids);
719 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
720 dev->wiphy.max_sched_scan_ssids);
721 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
722 dev->wiphy.max_scan_ie_len);
723 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
724 dev->wiphy.max_sched_scan_ie_len);
725 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
726 dev->wiphy.max_match_sets);
728 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
729 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
730 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
731 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
732 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
733 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
735 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
736 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
738 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
739 sizeof(u32) * dev->wiphy.n_cipher_suites,
740 dev->wiphy.cipher_suites);
742 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
743 dev->wiphy.max_num_pmkids);
745 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
746 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
748 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
749 dev->wiphy.available_antennas_tx);
750 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
751 dev->wiphy.available_antennas_rx);
753 if ((dev->wiphy.available_antennas_tx ||
754 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
755 u32 tx_ant = 0, rx_ant = 0;
757 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
759 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
760 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
764 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
765 dev->wiphy.interface_modes))
766 goto nla_put_failure;
768 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
770 goto nla_put_failure;
772 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
773 if (!dev->wiphy.bands[band])
776 nl_band = nla_nest_start(msg, band);
778 goto nla_put_failure;
781 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
782 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
783 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
784 &dev->wiphy.bands[band]->ht_cap.mcs);
785 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
786 dev->wiphy.bands[band]->ht_cap.cap);
787 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
788 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
789 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
790 dev->wiphy.bands[band]->ht_cap.ampdu_density);
793 /* add frequencies */
794 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
796 goto nla_put_failure;
798 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
799 nl_freq = nla_nest_start(msg, i);
801 goto nla_put_failure;
803 chan = &dev->wiphy.bands[band]->channels[i];
805 if (nl80211_msg_put_channel(msg, chan))
806 goto nla_put_failure;
808 nla_nest_end(msg, nl_freq);
811 nla_nest_end(msg, nl_freqs);
814 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
816 goto nla_put_failure;
818 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
819 nl_rate = nla_nest_start(msg, i);
821 goto nla_put_failure;
823 rate = &dev->wiphy.bands[band]->bitrates[i];
824 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
826 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
828 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
830 nla_nest_end(msg, nl_rate);
833 nla_nest_end(msg, nl_rates);
835 nla_nest_end(msg, nl_band);
837 nla_nest_end(msg, nl_bands);
839 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
841 goto nla_put_failure;
846 if (dev->ops->op) { \
848 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
852 CMD(add_virtual_intf, NEW_INTERFACE);
853 CMD(change_virtual_intf, SET_INTERFACE);
854 CMD(add_key, NEW_KEY);
855 CMD(add_beacon, NEW_BEACON);
856 CMD(add_station, NEW_STATION);
857 CMD(add_mpath, NEW_MPATH);
858 CMD(update_mesh_config, SET_MESH_CONFIG);
859 CMD(change_bss, SET_BSS);
860 CMD(auth, AUTHENTICATE);
861 CMD(assoc, ASSOCIATE);
862 CMD(deauth, DEAUTHENTICATE);
863 CMD(disassoc, DISASSOCIATE);
864 CMD(join_ibss, JOIN_IBSS);
865 CMD(join_mesh, JOIN_MESH);
866 CMD(set_pmksa, SET_PMKSA);
867 CMD(del_pmksa, DEL_PMKSA);
868 CMD(flush_pmksa, FLUSH_PMKSA);
869 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
870 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
872 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
873 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
875 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
877 CMD(set_channel, SET_CHANNEL);
878 CMD(set_wds_peer, SET_WDS_PEER);
879 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
880 CMD(sched_scan_start, START_SCHED_SCAN);
884 if (dev->ops->connect || dev->ops->auth) {
886 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
889 if (dev->ops->disconnect || dev->ops->deauth) {
891 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
894 nla_nest_end(msg, nl_cmds);
896 if (dev->ops->remain_on_channel)
897 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
898 dev->wiphy.max_remain_on_channel_duration);
900 if (dev->ops->mgmt_tx_cancel_wait)
901 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
905 struct nlattr *nl_ftypes, *nl_ifs;
906 enum nl80211_iftype ift;
908 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
910 goto nla_put_failure;
912 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
913 nl_ftypes = nla_nest_start(msg, ift);
915 goto nla_put_failure;
917 stypes = mgmt_stypes[ift].tx;
920 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
921 (i << 4) | IEEE80211_FTYPE_MGMT);
925 nla_nest_end(msg, nl_ftypes);
928 nla_nest_end(msg, nl_ifs);
930 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
932 goto nla_put_failure;
934 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
935 nl_ftypes = nla_nest_start(msg, ift);
937 goto nla_put_failure;
939 stypes = mgmt_stypes[ift].rx;
942 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
943 (i << 4) | IEEE80211_FTYPE_MGMT);
947 nla_nest_end(msg, nl_ftypes);
949 nla_nest_end(msg, nl_ifs);
952 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
953 struct nlattr *nl_wowlan;
955 nl_wowlan = nla_nest_start(msg,
956 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
958 goto nla_put_failure;
960 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
961 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
962 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
963 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
964 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
965 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
966 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
967 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
968 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
969 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
970 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
971 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
972 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
973 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
974 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
975 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
976 if (dev->wiphy.wowlan.n_patterns) {
977 struct nl80211_wowlan_pattern_support pat = {
978 .max_patterns = dev->wiphy.wowlan.n_patterns,
980 dev->wiphy.wowlan.pattern_min_len,
982 dev->wiphy.wowlan.pattern_max_len,
984 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
988 nla_nest_end(msg, nl_wowlan);
991 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
992 dev->wiphy.software_iftypes))
993 goto nla_put_failure;
995 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
996 goto nla_put_failure;
998 return genlmsg_end(msg, hdr);
1001 genlmsg_cancel(msg, hdr);
1005 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1008 int start = cb->args[0];
1009 struct cfg80211_registered_device *dev;
1011 mutex_lock(&cfg80211_mutex);
1012 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1013 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1017 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1018 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1024 mutex_unlock(&cfg80211_mutex);
1031 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1033 struct sk_buff *msg;
1034 struct cfg80211_registered_device *dev = info->user_ptr[0];
1036 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1040 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1045 return genlmsg_reply(msg, info);
1048 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1049 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1050 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1051 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1052 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1053 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1056 static int parse_txq_params(struct nlattr *tb[],
1057 struct ieee80211_txq_params *txq_params)
1059 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1060 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1061 !tb[NL80211_TXQ_ATTR_AIFS])
1064 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1065 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1066 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1067 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1068 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1073 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1076 * You can only set the channel explicitly for AP, mesh
1077 * and WDS type interfaces; all others have their channel
1078 * managed via their respective "establish a connection"
1079 * command (connect, join, ...)
1081 * Monitors are special as they are normally slaved to
1082 * whatever else is going on, so they behave as though
1083 * you tried setting the wiphy channel itself.
1086 wdev->iftype == NL80211_IFTYPE_AP ||
1087 wdev->iftype == NL80211_IFTYPE_WDS ||
1088 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1089 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1090 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1093 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1094 struct wireless_dev *wdev,
1095 struct genl_info *info)
1097 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1101 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1104 if (!nl80211_can_set_dev_channel(wdev))
1107 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1108 channel_type = nla_get_u32(info->attrs[
1109 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1110 if (channel_type != NL80211_CHAN_NO_HT &&
1111 channel_type != NL80211_CHAN_HT20 &&
1112 channel_type != NL80211_CHAN_HT40PLUS &&
1113 channel_type != NL80211_CHAN_HT40MINUS)
1117 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1119 mutex_lock(&rdev->devlist_mtx);
1122 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1125 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1127 mutex_unlock(&rdev->devlist_mtx);
1132 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1135 struct net_device *netdev = info->user_ptr[1];
1137 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1140 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1143 struct net_device *dev = info->user_ptr[1];
1144 struct wireless_dev *wdev = dev->ieee80211_ptr;
1147 if (!info->attrs[NL80211_ATTR_MAC])
1150 if (netif_running(dev))
1153 if (!rdev->ops->set_wds_peer)
1156 if (wdev->iftype != NL80211_IFTYPE_WDS)
1159 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1160 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1164 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1166 struct cfg80211_registered_device *rdev;
1167 struct net_device *netdev = NULL;
1168 struct wireless_dev *wdev;
1169 int result = 0, rem_txq_params = 0;
1170 struct nlattr *nl_txq_params;
1172 u8 retry_short = 0, retry_long = 0;
1173 u32 frag_threshold = 0, rts_threshold = 0;
1174 u8 coverage_class = 0;
1177 * Try to find the wiphy and netdev. Normally this
1178 * function shouldn't need the netdev, but this is
1179 * done for backward compatibility -- previously
1180 * setting the channel was done per wiphy, but now
1181 * it is per netdev. Previous userland like hostapd
1182 * also passed a netdev to set_wiphy, so that it is
1183 * possible to let that go to the right netdev!
1185 mutex_lock(&cfg80211_mutex);
1187 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1188 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1190 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1191 if (netdev && netdev->ieee80211_ptr) {
1192 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1193 mutex_lock(&rdev->mtx);
1199 rdev = __cfg80211_rdev_from_info(info);
1201 mutex_unlock(&cfg80211_mutex);
1202 return PTR_ERR(rdev);
1208 mutex_lock(&rdev->mtx);
1209 } else if (netif_running(netdev) &&
1210 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1211 wdev = netdev->ieee80211_ptr;
1216 * end workaround code, by now the rdev is available
1217 * and locked, and wdev may or may not be NULL.
1220 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1221 result = cfg80211_dev_rename(
1222 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1224 mutex_unlock(&cfg80211_mutex);
1229 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1230 struct ieee80211_txq_params txq_params;
1231 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1233 if (!rdev->ops->set_txq_params) {
1234 result = -EOPNOTSUPP;
1238 nla_for_each_nested(nl_txq_params,
1239 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1241 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1242 nla_data(nl_txq_params),
1243 nla_len(nl_txq_params),
1245 result = parse_txq_params(tb, &txq_params);
1249 result = rdev->ops->set_txq_params(&rdev->wiphy,
1256 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1257 result = __nl80211_set_channel(rdev, wdev, info);
1262 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1263 enum nl80211_tx_power_setting type;
1266 if (!rdev->ops->set_tx_power) {
1267 result = -EOPNOTSUPP;
1271 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1272 type = nla_get_u32(info->attrs[idx]);
1274 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1275 (type != NL80211_TX_POWER_AUTOMATIC)) {
1280 if (type != NL80211_TX_POWER_AUTOMATIC) {
1281 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1282 mbm = nla_get_u32(info->attrs[idx]);
1285 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1290 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1291 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1293 if ((!rdev->wiphy.available_antennas_tx &&
1294 !rdev->wiphy.available_antennas_rx) ||
1295 !rdev->ops->set_antenna) {
1296 result = -EOPNOTSUPP;
1300 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1301 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1303 /* reject antenna configurations which don't match the
1304 * available antenna masks, except for the "all" mask */
1305 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1306 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1311 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1312 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1314 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1321 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1322 retry_short = nla_get_u8(
1323 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1324 if (retry_short == 0) {
1328 changed |= WIPHY_PARAM_RETRY_SHORT;
1331 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1332 retry_long = nla_get_u8(
1333 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1334 if (retry_long == 0) {
1338 changed |= WIPHY_PARAM_RETRY_LONG;
1341 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1342 frag_threshold = nla_get_u32(
1343 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1344 if (frag_threshold < 256) {
1348 if (frag_threshold != (u32) -1) {
1350 * Fragments (apart from the last one) are required to
1351 * have even length. Make the fragmentation code
1352 * simpler by stripping LSB should someone try to use
1353 * odd threshold value.
1355 frag_threshold &= ~0x1;
1357 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1360 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1361 rts_threshold = nla_get_u32(
1362 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1363 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1366 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1367 coverage_class = nla_get_u8(
1368 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1369 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1373 u8 old_retry_short, old_retry_long;
1374 u32 old_frag_threshold, old_rts_threshold;
1375 u8 old_coverage_class;
1377 if (!rdev->ops->set_wiphy_params) {
1378 result = -EOPNOTSUPP;
1382 old_retry_short = rdev->wiphy.retry_short;
1383 old_retry_long = rdev->wiphy.retry_long;
1384 old_frag_threshold = rdev->wiphy.frag_threshold;
1385 old_rts_threshold = rdev->wiphy.rts_threshold;
1386 old_coverage_class = rdev->wiphy.coverage_class;
1388 if (changed & WIPHY_PARAM_RETRY_SHORT)
1389 rdev->wiphy.retry_short = retry_short;
1390 if (changed & WIPHY_PARAM_RETRY_LONG)
1391 rdev->wiphy.retry_long = retry_long;
1392 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1393 rdev->wiphy.frag_threshold = frag_threshold;
1394 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1395 rdev->wiphy.rts_threshold = rts_threshold;
1396 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1397 rdev->wiphy.coverage_class = coverage_class;
1399 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1401 rdev->wiphy.retry_short = old_retry_short;
1402 rdev->wiphy.retry_long = old_retry_long;
1403 rdev->wiphy.frag_threshold = old_frag_threshold;
1404 rdev->wiphy.rts_threshold = old_rts_threshold;
1405 rdev->wiphy.coverage_class = old_coverage_class;
1410 mutex_unlock(&rdev->mtx);
1417 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1418 struct cfg80211_registered_device *rdev,
1419 struct net_device *dev)
1423 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1427 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1428 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1429 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1430 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1432 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1433 rdev->devlist_generation ^
1434 (cfg80211_rdev_list_generation << 2));
1436 return genlmsg_end(msg, hdr);
1439 genlmsg_cancel(msg, hdr);
1443 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1447 int wp_start = cb->args[0];
1448 int if_start = cb->args[1];
1449 struct cfg80211_registered_device *rdev;
1450 struct wireless_dev *wdev;
1452 mutex_lock(&cfg80211_mutex);
1453 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1454 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1456 if (wp_idx < wp_start) {
1462 mutex_lock(&rdev->devlist_mtx);
1463 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1464 if (if_idx < if_start) {
1468 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1469 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1470 rdev, wdev->netdev) < 0) {
1471 mutex_unlock(&rdev->devlist_mtx);
1476 mutex_unlock(&rdev->devlist_mtx);
1481 mutex_unlock(&cfg80211_mutex);
1483 cb->args[0] = wp_idx;
1484 cb->args[1] = if_idx;
1489 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1491 struct sk_buff *msg;
1492 struct cfg80211_registered_device *dev = info->user_ptr[0];
1493 struct net_device *netdev = info->user_ptr[1];
1495 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1499 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1505 return genlmsg_reply(msg, info);
1508 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1509 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1510 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1511 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1512 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1513 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1516 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1518 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1526 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1527 nla, mntr_flags_policy))
1530 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1532 *mntrflags |= (1<<flag);
1537 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1538 struct net_device *netdev, u8 use_4addr,
1539 enum nl80211_iftype iftype)
1542 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1548 case NL80211_IFTYPE_AP_VLAN:
1549 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1552 case NL80211_IFTYPE_STATION:
1553 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1563 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1565 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1566 struct vif_params params;
1568 enum nl80211_iftype otype, ntype;
1569 struct net_device *dev = info->user_ptr[1];
1570 u32 _flags, *flags = NULL;
1571 bool change = false;
1573 memset(¶ms, 0, sizeof(params));
1575 otype = ntype = dev->ieee80211_ptr->iftype;
1577 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1578 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1581 if (ntype > NL80211_IFTYPE_MAX)
1585 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1586 struct wireless_dev *wdev = dev->ieee80211_ptr;
1588 if (ntype != NL80211_IFTYPE_MESH_POINT)
1590 if (netif_running(dev))
1594 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1595 IEEE80211_MAX_MESH_ID_LEN);
1596 wdev->mesh_id_up_len =
1597 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1598 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1599 wdev->mesh_id_up_len);
1603 if (info->attrs[NL80211_ATTR_4ADDR]) {
1604 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1606 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1610 params.use_4addr = -1;
1613 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1614 if (ntype != NL80211_IFTYPE_MONITOR)
1616 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1626 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1630 if (!err && params.use_4addr != -1)
1631 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1636 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1639 struct vif_params params;
1640 struct net_device *dev;
1642 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1645 memset(¶ms, 0, sizeof(params));
1647 if (!info->attrs[NL80211_ATTR_IFNAME])
1650 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1651 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1652 if (type > NL80211_IFTYPE_MAX)
1656 if (!rdev->ops->add_virtual_intf ||
1657 !(rdev->wiphy.interface_modes & (1 << type)))
1660 if (info->attrs[NL80211_ATTR_4ADDR]) {
1661 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1662 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1667 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1668 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1670 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1671 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1672 type, err ? NULL : &flags, ¶ms);
1674 return PTR_ERR(dev);
1676 if (type == NL80211_IFTYPE_MESH_POINT &&
1677 info->attrs[NL80211_ATTR_MESH_ID]) {
1678 struct wireless_dev *wdev = dev->ieee80211_ptr;
1681 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1682 IEEE80211_MAX_MESH_ID_LEN);
1683 wdev->mesh_id_up_len =
1684 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1685 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1686 wdev->mesh_id_up_len);
1693 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1696 struct net_device *dev = info->user_ptr[1];
1698 if (!rdev->ops->del_virtual_intf)
1701 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1704 struct get_key_cookie {
1705 struct sk_buff *msg;
1710 static void get_key_callback(void *c, struct key_params *params)
1713 struct get_key_cookie *cookie = c;
1716 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1717 params->key_len, params->key);
1720 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1721 params->seq_len, params->seq);
1724 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1727 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1729 goto nla_put_failure;
1732 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1733 params->key_len, params->key);
1736 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1737 params->seq_len, params->seq);
1740 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1743 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1745 nla_nest_end(cookie->msg, key);
1752 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1756 struct net_device *dev = info->user_ptr[1];
1758 const u8 *mac_addr = NULL;
1760 struct get_key_cookie cookie = {
1764 struct sk_buff *msg;
1766 if (info->attrs[NL80211_ATTR_KEY_IDX])
1767 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1772 if (info->attrs[NL80211_ATTR_MAC])
1773 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1775 pairwise = !!mac_addr;
1776 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1777 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1778 if (kt >= NUM_NL80211_KEYTYPES)
1780 if (kt != NL80211_KEYTYPE_GROUP &&
1781 kt != NL80211_KEYTYPE_PAIRWISE)
1783 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1786 if (!rdev->ops->get_key)
1789 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1793 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1794 NL80211_CMD_NEW_KEY);
1796 return PTR_ERR(hdr);
1799 cookie.idx = key_idx;
1801 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1802 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1804 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1806 if (pairwise && mac_addr &&
1807 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1810 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1811 mac_addr, &cookie, get_key_callback);
1817 goto nla_put_failure;
1819 genlmsg_end(msg, hdr);
1820 return genlmsg_reply(msg, info);
1829 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1832 struct key_parse key;
1834 struct net_device *dev = info->user_ptr[1];
1836 err = nl80211_parse_key(info, &key);
1843 /* only support setting default key */
1844 if (!key.def && !key.defmgmt)
1847 wdev_lock(dev->ieee80211_ptr);
1850 if (!rdev->ops->set_default_key) {
1855 err = nl80211_key_allowed(dev->ieee80211_ptr);
1859 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1860 key.def_uni, key.def_multi);
1865 #ifdef CONFIG_CFG80211_WEXT
1866 dev->ieee80211_ptr->wext.default_key = key.idx;
1869 if (key.def_uni || !key.def_multi) {
1874 if (!rdev->ops->set_default_mgmt_key) {
1879 err = nl80211_key_allowed(dev->ieee80211_ptr);
1883 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1888 #ifdef CONFIG_CFG80211_WEXT
1889 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1894 wdev_unlock(dev->ieee80211_ptr);
1899 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1903 struct net_device *dev = info->user_ptr[1];
1904 struct key_parse key;
1905 const u8 *mac_addr = NULL;
1907 err = nl80211_parse_key(info, &key);
1914 if (info->attrs[NL80211_ATTR_MAC])
1915 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1917 if (key.type == -1) {
1919 key.type = NL80211_KEYTYPE_PAIRWISE;
1921 key.type = NL80211_KEYTYPE_GROUP;
1925 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1926 key.type != NL80211_KEYTYPE_GROUP)
1929 if (!rdev->ops->add_key)
1932 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1933 key.type == NL80211_KEYTYPE_PAIRWISE,
1937 wdev_lock(dev->ieee80211_ptr);
1938 err = nl80211_key_allowed(dev->ieee80211_ptr);
1940 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1941 key.type == NL80211_KEYTYPE_PAIRWISE,
1943 wdev_unlock(dev->ieee80211_ptr);
1948 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1952 struct net_device *dev = info->user_ptr[1];
1953 u8 *mac_addr = NULL;
1954 struct key_parse key;
1956 err = nl80211_parse_key(info, &key);
1960 if (info->attrs[NL80211_ATTR_MAC])
1961 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1963 if (key.type == -1) {
1965 key.type = NL80211_KEYTYPE_PAIRWISE;
1967 key.type = NL80211_KEYTYPE_GROUP;
1971 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1972 key.type != NL80211_KEYTYPE_GROUP)
1975 if (!rdev->ops->del_key)
1978 wdev_lock(dev->ieee80211_ptr);
1979 err = nl80211_key_allowed(dev->ieee80211_ptr);
1981 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1982 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1986 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1987 key.type == NL80211_KEYTYPE_PAIRWISE,
1990 #ifdef CONFIG_CFG80211_WEXT
1992 if (key.idx == dev->ieee80211_ptr->wext.default_key)
1993 dev->ieee80211_ptr->wext.default_key = -1;
1994 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1995 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1998 wdev_unlock(dev->ieee80211_ptr);
2003 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2005 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2006 struct beacon_parameters *info);
2007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2008 struct net_device *dev = info->user_ptr[1];
2009 struct wireless_dev *wdev = dev->ieee80211_ptr;
2010 struct beacon_parameters params;
2011 int haveinfo = 0, err;
2013 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2014 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2015 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2016 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2019 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2020 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2023 memset(¶ms, 0, sizeof(params));
2025 switch (info->genlhdr->cmd) {
2026 case NL80211_CMD_NEW_BEACON:
2027 /* these are required for NEW_BEACON */
2028 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2029 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2030 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2034 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2035 params.dtim_period =
2036 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2038 err = cfg80211_validate_beacon_int(rdev, params.interval);
2043 * In theory, some of these attributes could be required for
2044 * NEW_BEACON, but since they were not used when the command was
2045 * originally added, keep them optional for old user space
2046 * programs to work with drivers that do not need the additional
2049 if (info->attrs[NL80211_ATTR_SSID]) {
2050 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2052 nla_len(info->attrs[NL80211_ATTR_SSID]);
2053 if (params.ssid_len == 0 ||
2054 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2058 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2059 params.hidden_ssid = nla_get_u32(
2060 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2061 if (params.hidden_ssid !=
2062 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2063 params.hidden_ssid !=
2064 NL80211_HIDDEN_SSID_ZERO_LEN &&
2065 params.hidden_ssid !=
2066 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2070 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2072 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2073 params.auth_type = nla_get_u32(
2074 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2075 if (!nl80211_valid_auth_type(params.auth_type))
2078 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2080 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2081 NL80211_MAX_NR_CIPHER_SUITES);
2085 call = rdev->ops->add_beacon;
2087 case NL80211_CMD_SET_BEACON:
2088 call = rdev->ops->set_beacon;
2098 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2099 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2101 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2105 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2106 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2108 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2115 if (info->attrs[NL80211_ATTR_IE]) {
2116 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2117 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2120 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2121 params.proberesp_ies =
2122 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2123 params.proberesp_ies_len =
2124 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2127 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2128 params.assocresp_ies =
2129 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2130 params.assocresp_ies_len =
2131 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2134 err = call(&rdev->wiphy, dev, ¶ms);
2135 if (!err && params.interval)
2136 wdev->beacon_interval = params.interval;
2140 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2143 struct net_device *dev = info->user_ptr[1];
2144 struct wireless_dev *wdev = dev->ieee80211_ptr;
2147 if (!rdev->ops->del_beacon)
2150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2154 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2156 wdev->beacon_interval = 0;
2160 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2161 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2162 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2163 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2164 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2165 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2168 static int parse_station_flags(struct genl_info *info,
2169 struct station_parameters *params)
2171 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2176 * Try parsing the new attribute first so userspace
2177 * can specify both for older kernels.
2179 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2181 struct nl80211_sta_flag_update *sta_flags;
2183 sta_flags = nla_data(nla);
2184 params->sta_flags_mask = sta_flags->mask;
2185 params->sta_flags_set = sta_flags->set;
2186 if ((params->sta_flags_mask |
2187 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2192 /* if present, parse the old attribute */
2194 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2198 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2199 nla, sta_flags_policy))
2202 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2203 params->sta_flags_mask &= ~1;
2205 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2207 params->sta_flags_set |= (1<<flag);
2212 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2215 struct nlattr *rate;
2218 rate = nla_nest_start(msg, attr);
2220 goto nla_put_failure;
2222 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2223 bitrate = cfg80211_calculate_bitrate(info);
2225 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2227 if (info->flags & RATE_INFO_FLAGS_MCS)
2228 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2229 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2230 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2231 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2232 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2234 nla_nest_end(msg, rate);
2241 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2242 int flags, struct net_device *dev,
2243 const u8 *mac_addr, struct station_info *sinfo)
2246 struct nlattr *sinfoattr, *bss_param;
2248 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2252 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2253 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2255 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2257 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2259 goto nla_put_failure;
2260 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2261 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2262 sinfo->connected_time);
2263 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2264 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2265 sinfo->inactive_time);
2266 if (sinfo->filled & STATION_INFO_RX_BYTES)
2267 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2269 if (sinfo->filled & STATION_INFO_TX_BYTES)
2270 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2272 if (sinfo->filled & STATION_INFO_LLID)
2273 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2275 if (sinfo->filled & STATION_INFO_PLID)
2276 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2278 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2279 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2280 sinfo->plink_state);
2281 if (sinfo->filled & STATION_INFO_SIGNAL)
2282 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2284 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2285 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2287 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2288 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2289 NL80211_STA_INFO_TX_BITRATE))
2290 goto nla_put_failure;
2292 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2293 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2294 NL80211_STA_INFO_RX_BITRATE))
2295 goto nla_put_failure;
2297 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2298 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2300 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2301 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2303 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2304 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2306 if (sinfo->filled & STATION_INFO_TX_FAILED)
2307 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2309 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2310 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2312 goto nla_put_failure;
2314 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2315 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2316 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2317 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2318 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2320 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2321 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2322 sinfo->bss_param.dtim_period);
2323 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2324 sinfo->bss_param.beacon_interval);
2326 nla_nest_end(msg, bss_param);
2328 nla_nest_end(msg, sinfoattr);
2330 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
2331 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2332 sinfo->assoc_req_ies);
2334 return genlmsg_end(msg, hdr);
2337 genlmsg_cancel(msg, hdr);
2341 static int nl80211_dump_station(struct sk_buff *skb,
2342 struct netlink_callback *cb)
2344 struct station_info sinfo;
2345 struct cfg80211_registered_device *dev;
2346 struct net_device *netdev;
2347 u8 mac_addr[ETH_ALEN];
2348 int sta_idx = cb->args[1];
2351 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2355 if (!dev->ops->dump_station) {
2361 memset(&sinfo, 0, sizeof(sinfo));
2362 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2369 if (nl80211_send_station(skb,
2370 NETLINK_CB(cb->skb).pid,
2371 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2381 cb->args[1] = sta_idx;
2384 nl80211_finish_netdev_dump(dev);
2389 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2392 struct net_device *dev = info->user_ptr[1];
2393 struct station_info sinfo;
2394 struct sk_buff *msg;
2395 u8 *mac_addr = NULL;
2398 memset(&sinfo, 0, sizeof(sinfo));
2400 if (!info->attrs[NL80211_ATTR_MAC])
2403 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2405 if (!rdev->ops->get_station)
2408 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2412 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2416 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2417 dev, mac_addr, &sinfo) < 0) {
2422 return genlmsg_reply(msg, info);
2426 * Get vlan interface making sure it is running and on the right wiphy.
2428 static int get_vlan(struct genl_info *info,
2429 struct cfg80211_registered_device *rdev,
2430 struct net_device **vlan)
2432 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2436 *vlan = dev_get_by_index(genl_info_net(info),
2437 nla_get_u32(vlanattr));
2440 if (!(*vlan)->ieee80211_ptr)
2442 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2444 if (!netif_running(*vlan))
2450 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2454 struct net_device *dev = info->user_ptr[1];
2455 struct station_parameters params;
2456 u8 *mac_addr = NULL;
2458 memset(¶ms, 0, sizeof(params));
2460 params.listen_interval = -1;
2461 params.plink_state = -1;
2463 if (info->attrs[NL80211_ATTR_STA_AID])
2466 if (!info->attrs[NL80211_ATTR_MAC])
2469 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2471 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2472 params.supported_rates =
2473 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2474 params.supported_rates_len =
2475 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2478 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2479 params.listen_interval =
2480 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2482 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2484 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2486 if (parse_station_flags(info, ¶ms))
2489 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2490 params.plink_action =
2491 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2493 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2494 params.plink_state =
2495 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2497 err = get_vlan(info, rdev, ¶ms.vlan);
2501 /* validate settings */
2504 switch (dev->ieee80211_ptr->iftype) {
2505 case NL80211_IFTYPE_AP:
2506 case NL80211_IFTYPE_AP_VLAN:
2507 case NL80211_IFTYPE_P2P_GO:
2508 /* disallow mesh-specific things */
2509 if (params.plink_action)
2512 case NL80211_IFTYPE_P2P_CLIENT:
2513 case NL80211_IFTYPE_STATION:
2514 /* disallow everything but AUTHORIZED flag */
2515 if (params.plink_action)
2519 if (params.supported_rates)
2523 if (params.listen_interval >= 0)
2525 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2528 case NL80211_IFTYPE_MESH_POINT:
2529 /* disallow things mesh doesn't support */
2534 if (params.listen_interval >= 0)
2536 if (params.sta_flags_mask &
2537 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2538 BIT(NL80211_STA_FLAG_MFP) |
2539 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2549 if (!rdev->ops->change_station) {
2554 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2558 dev_put(params.vlan);
2563 static struct nla_policy
2564 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2565 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2566 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2569 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2573 struct net_device *dev = info->user_ptr[1];
2574 struct station_parameters params;
2575 u8 *mac_addr = NULL;
2577 memset(¶ms, 0, sizeof(params));
2579 if (!info->attrs[NL80211_ATTR_MAC])
2582 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2585 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2588 if (!info->attrs[NL80211_ATTR_STA_AID])
2591 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2592 params.supported_rates =
2593 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2594 params.supported_rates_len =
2595 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2596 params.listen_interval =
2597 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2599 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2600 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2603 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2605 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2607 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2608 params.plink_action =
2609 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2611 if (parse_station_flags(info, ¶ms))
2614 /* parse WME attributes if sta is WME capable */
2615 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2616 (params.sta_flags_set & NL80211_STA_FLAG_WME) &&
2617 info->attrs[NL80211_ATTR_STA_WME]) {
2618 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2621 nla = info->attrs[NL80211_ATTR_STA_WME];
2622 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2623 nl80211_sta_wme_policy);
2627 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2628 params.uapsd_queues =
2629 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2630 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2633 if (tb[NL80211_STA_WME_MAX_SP])
2635 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2637 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2641 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2642 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2643 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2644 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2647 err = get_vlan(info, rdev, ¶ms.vlan);
2651 /* validate settings */
2654 if (!rdev->ops->add_station) {
2659 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2663 dev_put(params.vlan);
2667 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2670 struct net_device *dev = info->user_ptr[1];
2671 u8 *mac_addr = NULL;
2673 if (info->attrs[NL80211_ATTR_MAC])
2674 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2676 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2677 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2678 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2679 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2682 if (!rdev->ops->del_station)
2685 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2688 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2689 int flags, struct net_device *dev,
2690 u8 *dst, u8 *next_hop,
2691 struct mpath_info *pinfo)
2694 struct nlattr *pinfoattr;
2696 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2700 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2701 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2702 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2704 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2706 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2708 goto nla_put_failure;
2709 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2710 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2712 if (pinfo->filled & MPATH_INFO_SN)
2713 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2715 if (pinfo->filled & MPATH_INFO_METRIC)
2716 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2718 if (pinfo->filled & MPATH_INFO_EXPTIME)
2719 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2721 if (pinfo->filled & MPATH_INFO_FLAGS)
2722 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2724 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2725 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2726 pinfo->discovery_timeout);
2727 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2728 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2729 pinfo->discovery_retries);
2731 nla_nest_end(msg, pinfoattr);
2733 return genlmsg_end(msg, hdr);
2736 genlmsg_cancel(msg, hdr);
2740 static int nl80211_dump_mpath(struct sk_buff *skb,
2741 struct netlink_callback *cb)
2743 struct mpath_info pinfo;
2744 struct cfg80211_registered_device *dev;
2745 struct net_device *netdev;
2747 u8 next_hop[ETH_ALEN];
2748 int path_idx = cb->args[1];
2751 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2755 if (!dev->ops->dump_mpath) {
2760 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2766 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2767 dst, next_hop, &pinfo);
2773 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2774 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2775 netdev, dst, next_hop,
2784 cb->args[1] = path_idx;
2787 nl80211_finish_netdev_dump(dev);
2791 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2795 struct net_device *dev = info->user_ptr[1];
2796 struct mpath_info pinfo;
2797 struct sk_buff *msg;
2799 u8 next_hop[ETH_ALEN];
2801 memset(&pinfo, 0, sizeof(pinfo));
2803 if (!info->attrs[NL80211_ATTR_MAC])
2806 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2808 if (!rdev->ops->get_mpath)
2811 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2814 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2818 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2822 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2823 dev, dst, next_hop, &pinfo) < 0) {
2828 return genlmsg_reply(msg, info);
2831 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2834 struct net_device *dev = info->user_ptr[1];
2836 u8 *next_hop = NULL;
2838 if (!info->attrs[NL80211_ATTR_MAC])
2841 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2844 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2845 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2847 if (!rdev->ops->change_mpath)
2850 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2853 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2856 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2858 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2859 struct net_device *dev = info->user_ptr[1];
2861 u8 *next_hop = NULL;
2863 if (!info->attrs[NL80211_ATTR_MAC])
2866 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2869 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2870 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2872 if (!rdev->ops->add_mpath)
2875 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2878 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2881 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2883 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2884 struct net_device *dev = info->user_ptr[1];
2887 if (info->attrs[NL80211_ATTR_MAC])
2888 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2890 if (!rdev->ops->del_mpath)
2893 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2896 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2899 struct net_device *dev = info->user_ptr[1];
2900 struct bss_parameters params;
2902 memset(¶ms, 0, sizeof(params));
2903 /* default to not changing parameters */
2904 params.use_cts_prot = -1;
2905 params.use_short_preamble = -1;
2906 params.use_short_slot_time = -1;
2907 params.ap_isolate = -1;
2908 params.ht_opmode = -1;
2910 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2911 params.use_cts_prot =
2912 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2913 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2914 params.use_short_preamble =
2915 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2916 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2917 params.use_short_slot_time =
2918 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2919 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2920 params.basic_rates =
2921 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2922 params.basic_rates_len =
2923 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2925 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2926 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2927 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2929 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
2931 if (!rdev->ops->change_bss)
2934 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2935 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2938 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2941 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2942 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2943 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2944 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2945 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2946 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2947 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2950 static int parse_reg_rule(struct nlattr *tb[],
2951 struct ieee80211_reg_rule *reg_rule)
2953 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2954 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2956 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2958 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2960 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2962 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2964 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2967 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2969 freq_range->start_freq_khz =
2970 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2971 freq_range->end_freq_khz =
2972 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2973 freq_range->max_bandwidth_khz =
2974 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2976 power_rule->max_eirp =
2977 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2979 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2980 power_rule->max_antenna_gain =
2981 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2986 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2992 * You should only get this when cfg80211 hasn't yet initialized
2993 * completely when built-in to the kernel right between the time
2994 * window between nl80211_init() and regulatory_init(), if that is
2997 mutex_lock(&cfg80211_mutex);
2998 if (unlikely(!cfg80211_regdomain)) {
2999 mutex_unlock(&cfg80211_mutex);
3000 return -EINPROGRESS;
3002 mutex_unlock(&cfg80211_mutex);
3004 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3007 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3009 r = regulatory_hint_user(data);
3014 static int nl80211_get_mesh_config(struct sk_buff *skb,
3015 struct genl_info *info)
3017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3018 struct net_device *dev = info->user_ptr[1];
3019 struct wireless_dev *wdev = dev->ieee80211_ptr;
3020 struct mesh_config cur_params;
3023 struct nlattr *pinfoattr;
3024 struct sk_buff *msg;
3026 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3029 if (!rdev->ops->get_mesh_config)
3033 /* If not connected, get default parameters */
3034 if (!wdev->mesh_id_len)
3035 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3037 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3044 /* Draw up a netlink message to send back */
3045 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3048 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3049 NL80211_CMD_GET_MESH_CONFIG);
3052 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3054 goto nla_put_failure;
3055 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3056 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3057 cur_params.dot11MeshRetryTimeout);
3058 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3059 cur_params.dot11MeshConfirmTimeout);
3060 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3061 cur_params.dot11MeshHoldingTimeout);
3062 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3063 cur_params.dot11MeshMaxPeerLinks);
3064 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3065 cur_params.dot11MeshMaxRetries);
3066 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3067 cur_params.dot11MeshTTL);
3068 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3069 cur_params.element_ttl);
3070 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3071 cur_params.auto_open_plinks);
3072 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3073 cur_params.dot11MeshHWMPmaxPREQretries);
3074 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3075 cur_params.path_refresh_time);
3076 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3077 cur_params.min_discovery_timeout);
3078 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3079 cur_params.dot11MeshHWMPactivePathTimeout);
3080 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3081 cur_params.dot11MeshHWMPpreqMinInterval);
3082 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3083 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
3084 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3085 cur_params.dot11MeshHWMPRootMode);
3086 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3087 cur_params.dot11MeshHWMPRannInterval);
3088 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3089 cur_params.dot11MeshGateAnnouncementProtocol);
3090 nla_nest_end(msg, pinfoattr);
3091 genlmsg_end(msg, hdr);
3092 return genlmsg_reply(msg, info);
3095 genlmsg_cancel(msg, hdr);
3101 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3102 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3103 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3104 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3105 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3106 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3107 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3108 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3109 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3111 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3112 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3113 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3114 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3115 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3116 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3117 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3118 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3119 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3122 static const struct nla_policy
3123 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3124 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3125 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3126 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3127 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3128 .len = IEEE80211_MAX_DATA_LEN },
3129 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3132 static int nl80211_parse_mesh_config(struct genl_info *info,
3133 struct mesh_config *cfg,
3136 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3139 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3141 if (table[attr_num]) {\
3142 cfg->param = nla_fn(table[attr_num]); \
3143 mask |= (1 << (attr_num - 1)); \
3148 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3150 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3151 info->attrs[NL80211_ATTR_MESH_CONFIG],
3152 nl80211_meshconf_params_policy))
3155 /* This makes sure that there aren't more than 32 mesh config
3156 * parameters (otherwise our bitfield scheme would not work.) */
3157 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3159 /* Fill in the params struct */
3160 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3161 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3162 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3163 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3164 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3165 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3166 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3167 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3168 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3169 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3170 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3171 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3172 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3173 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3174 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3175 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3177 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3180 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3181 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3182 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3184 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3185 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3187 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3188 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3190 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3191 dot11MeshHWMPnetDiameterTraversalTime,
3192 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3194 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3195 dot11MeshHWMPRootMode, mask,
3196 NL80211_MESHCONF_HWMP_ROOTMODE,
3198 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3199 dot11MeshHWMPRannInterval, mask,
3200 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3202 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3203 dot11MeshGateAnnouncementProtocol, mask,
3204 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3211 #undef FILL_IN_MESH_PARAM_IF_SET
3214 static int nl80211_parse_mesh_setup(struct genl_info *info,
3215 struct mesh_setup *setup)
3217 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3219 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3221 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3222 info->attrs[NL80211_ATTR_MESH_SETUP],
3223 nl80211_mesh_setup_params_policy))
3226 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3227 setup->path_sel_proto =
3228 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3229 IEEE80211_PATH_PROTOCOL_VENDOR :
3230 IEEE80211_PATH_PROTOCOL_HWMP;
3232 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3233 setup->path_metric =
3234 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3235 IEEE80211_PATH_METRIC_VENDOR :
3236 IEEE80211_PATH_METRIC_AIRTIME;
3239 if (tb[NL80211_MESH_SETUP_IE]) {
3240 struct nlattr *ieattr =
3241 tb[NL80211_MESH_SETUP_IE];
3242 if (!is_valid_ie_attr(ieattr))
3244 setup->ie = nla_data(ieattr);
3245 setup->ie_len = nla_len(ieattr);
3247 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3248 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3253 static int nl80211_update_mesh_config(struct sk_buff *skb,
3254 struct genl_info *info)
3256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3257 struct net_device *dev = info->user_ptr[1];
3258 struct wireless_dev *wdev = dev->ieee80211_ptr;
3259 struct mesh_config cfg;
3263 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3266 if (!rdev->ops->update_mesh_config)
3269 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3274 if (!wdev->mesh_id_len)
3278 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3286 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3288 struct sk_buff *msg;
3290 struct nlattr *nl_reg_rules;
3294 mutex_lock(&cfg80211_mutex);
3296 if (!cfg80211_regdomain)
3299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3305 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3306 NL80211_CMD_GET_REG);
3310 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3311 cfg80211_regdomain->alpha2);
3313 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3315 goto nla_put_failure;
3317 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3318 struct nlattr *nl_reg_rule;
3319 const struct ieee80211_reg_rule *reg_rule;
3320 const struct ieee80211_freq_range *freq_range;
3321 const struct ieee80211_power_rule *power_rule;
3323 reg_rule = &cfg80211_regdomain->reg_rules[i];
3324 freq_range = ®_rule->freq_range;
3325 power_rule = ®_rule->power_rule;
3327 nl_reg_rule = nla_nest_start(msg, i);
3329 goto nla_put_failure;
3331 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3333 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3334 freq_range->start_freq_khz);
3335 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3336 freq_range->end_freq_khz);
3337 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3338 freq_range->max_bandwidth_khz);
3339 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3340 power_rule->max_antenna_gain);
3341 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3342 power_rule->max_eirp);
3344 nla_nest_end(msg, nl_reg_rule);
3347 nla_nest_end(msg, nl_reg_rules);
3349 genlmsg_end(msg, hdr);
3350 err = genlmsg_reply(msg, info);
3354 genlmsg_cancel(msg, hdr);
3359 mutex_unlock(&cfg80211_mutex);
3363 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3365 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3366 struct nlattr *nl_reg_rule;
3367 char *alpha2 = NULL;
3368 int rem_reg_rules = 0, r = 0;
3369 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3370 struct ieee80211_regdomain *rd = NULL;
3372 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3375 if (!info->attrs[NL80211_ATTR_REG_RULES])
3378 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3380 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3383 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3387 mutex_lock(&cfg80211_mutex);
3389 if (!reg_is_valid_request(alpha2)) {
3394 size_of_regd = sizeof(struct ieee80211_regdomain) +
3395 (num_rules * sizeof(struct ieee80211_reg_rule));
3397 rd = kzalloc(size_of_regd, GFP_KERNEL);
3403 rd->n_reg_rules = num_rules;
3404 rd->alpha2[0] = alpha2[0];
3405 rd->alpha2[1] = alpha2[1];
3407 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3409 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3410 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3412 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3418 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3424 BUG_ON(rule_idx != num_rules);
3428 mutex_unlock(&cfg80211_mutex);
3433 mutex_unlock(&cfg80211_mutex);
3438 static int validate_scan_freqs(struct nlattr *freqs)
3440 struct nlattr *attr1, *attr2;
3441 int n_channels = 0, tmp1, tmp2;
3443 nla_for_each_nested(attr1, freqs, tmp1) {
3446 * Some hardware has a limited channel list for
3447 * scanning, and it is pretty much nonsensical
3448 * to scan for a channel twice, so disallow that
3449 * and don't require drivers to check that the
3450 * channel list they get isn't longer than what
3451 * they can scan, as long as they can scan all
3452 * the channels they registered at once.
3454 nla_for_each_nested(attr2, freqs, tmp2)
3455 if (attr1 != attr2 &&
3456 nla_get_u32(attr1) == nla_get_u32(attr2))
3463 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3466 struct net_device *dev = info->user_ptr[1];
3467 struct cfg80211_scan_request *request;
3468 struct nlattr *attr;
3469 struct wiphy *wiphy;
3470 int err, tmp, n_ssids = 0, n_channels, i;
3473 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3476 wiphy = &rdev->wiphy;
3478 if (!rdev->ops->scan)
3484 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3485 n_channels = validate_scan_freqs(
3486 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3490 enum ieee80211_band band;
3493 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3494 if (wiphy->bands[band])
3495 n_channels += wiphy->bands[band]->n_channels;
3498 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3499 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3502 if (n_ssids > wiphy->max_scan_ssids)
3505 if (info->attrs[NL80211_ATTR_IE])
3506 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3510 if (ie_len > wiphy->max_scan_ie_len)
3513 request = kzalloc(sizeof(*request)
3514 + sizeof(*request->ssids) * n_ssids
3515 + sizeof(*request->channels) * n_channels
3516 + ie_len, GFP_KERNEL);
3521 request->ssids = (void *)&request->channels[n_channels];
3522 request->n_ssids = n_ssids;
3525 request->ie = (void *)(request->ssids + n_ssids);
3527 request->ie = (void *)(request->channels + n_channels);
3531 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3532 /* user specified, bail out if channel not found */
3533 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3534 struct ieee80211_channel *chan;
3536 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3543 /* ignore disabled channels */
3544 if (chan->flags & IEEE80211_CHAN_DISABLED)
3547 request->channels[i] = chan;
3551 enum ieee80211_band band;
3554 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3556 if (!wiphy->bands[band])
3558 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3559 struct ieee80211_channel *chan;
3561 chan = &wiphy->bands[band]->channels[j];
3563 if (chan->flags & IEEE80211_CHAN_DISABLED)
3566 request->channels[i] = chan;
3577 request->n_channels = i;
3580 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3581 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3582 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3586 request->ssids[i].ssid_len = nla_len(attr);
3587 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3592 if (info->attrs[NL80211_ATTR_IE]) {
3593 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3594 memcpy((void *)request->ie,
3595 nla_data(info->attrs[NL80211_ATTR_IE]),
3599 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3600 if (wiphy->bands[i])
3602 (1 << wiphy->bands[i]->n_bitrates) - 1;
3604 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3605 nla_for_each_nested(attr,
3606 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3608 enum ieee80211_band band = nla_type(attr);
3610 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3614 err = ieee80211_get_ratemask(wiphy->bands[band],
3617 &request->rates[band]);
3624 request->wiphy = &rdev->wiphy;
3626 rdev->scan_req = request;
3627 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3630 nl80211_send_scan_start(rdev, dev);
3634 rdev->scan_req = NULL;
3641 static int nl80211_start_sched_scan(struct sk_buff *skb,
3642 struct genl_info *info)
3644 struct cfg80211_sched_scan_request *request;
3645 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3646 struct net_device *dev = info->user_ptr[1];
3647 struct nlattr *attr;
3648 struct wiphy *wiphy;
3649 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
3651 enum ieee80211_band band;
3653 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
3655 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3656 !rdev->ops->sched_scan_start)
3659 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3662 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3665 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3669 wiphy = &rdev->wiphy;
3671 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3672 n_channels = validate_scan_freqs(
3673 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3679 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3680 if (wiphy->bands[band])
3681 n_channels += wiphy->bands[band]->n_channels;
3684 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3685 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3689 if (n_ssids > wiphy->max_sched_scan_ssids)
3692 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3693 nla_for_each_nested(attr,
3694 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3698 if (n_match_sets > wiphy->max_match_sets)
3701 if (info->attrs[NL80211_ATTR_IE])
3702 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3706 if (ie_len > wiphy->max_sched_scan_ie_len)
3709 mutex_lock(&rdev->sched_scan_mtx);
3711 if (rdev->sched_scan_req) {
3716 request = kzalloc(sizeof(*request)
3717 + sizeof(*request->ssids) * n_ssids
3718 + sizeof(*request->match_sets) * n_match_sets
3719 + sizeof(*request->channels) * n_channels
3720 + ie_len, GFP_KERNEL);
3727 request->ssids = (void *)&request->channels[n_channels];
3728 request->n_ssids = n_ssids;
3731 request->ie = (void *)(request->ssids + n_ssids);
3733 request->ie = (void *)(request->channels + n_channels);
3738 request->match_sets = (void *)(request->ie + ie_len);
3739 else if (request->ssids)
3740 request->match_sets =
3741 (void *)(request->ssids + n_ssids);
3743 request->match_sets =
3744 (void *)(request->channels + n_channels);
3746 request->n_match_sets = n_match_sets;
3749 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3750 /* user specified, bail out if channel not found */
3751 nla_for_each_nested(attr,
3752 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3754 struct ieee80211_channel *chan;
3756 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3763 /* ignore disabled channels */
3764 if (chan->flags & IEEE80211_CHAN_DISABLED)
3767 request->channels[i] = chan;
3772 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3774 if (!wiphy->bands[band])
3776 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3777 struct ieee80211_channel *chan;
3779 chan = &wiphy->bands[band]->channels[j];
3781 if (chan->flags & IEEE80211_CHAN_DISABLED)
3784 request->channels[i] = chan;
3795 request->n_channels = i;
3798 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3799 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3801 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3805 request->ssids[i].ssid_len = nla_len(attr);
3806 memcpy(request->ssids[i].ssid, nla_data(attr),
3813 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3814 nla_for_each_nested(attr,
3815 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3817 struct nlattr *ssid;
3819 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3820 nla_data(attr), nla_len(attr),
3821 nl80211_match_policy);
3822 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3824 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3828 memcpy(request->match_sets[i].ssid.ssid,
3829 nla_data(ssid), nla_len(ssid));
3830 request->match_sets[i].ssid.ssid_len =
3837 if (info->attrs[NL80211_ATTR_IE]) {
3838 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3839 memcpy((void *)request->ie,
3840 nla_data(info->attrs[NL80211_ATTR_IE]),
3845 request->wiphy = &rdev->wiphy;
3846 request->interval = interval;
3848 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3850 rdev->sched_scan_req = request;
3851 nl80211_send_sched_scan(rdev, dev,
3852 NL80211_CMD_START_SCHED_SCAN);
3859 mutex_unlock(&rdev->sched_scan_mtx);
3863 static int nl80211_stop_sched_scan(struct sk_buff *skb,
3864 struct genl_info *info)
3866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3869 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3870 !rdev->ops->sched_scan_stop)
3873 mutex_lock(&rdev->sched_scan_mtx);
3874 err = __cfg80211_stop_sched_scan(rdev, false);
3875 mutex_unlock(&rdev->sched_scan_mtx);
3880 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3882 struct cfg80211_registered_device *rdev,
3883 struct wireless_dev *wdev,
3884 struct cfg80211_internal_bss *intbss)
3886 struct cfg80211_bss *res = &intbss->pub;
3891 ASSERT_WDEV_LOCK(wdev);
3893 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
3894 NL80211_CMD_NEW_SCAN_RESULTS);
3898 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3900 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3901 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3903 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3905 goto nla_put_failure;
3906 if (!is_zero_ether_addr(res->bssid))
3907 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3908 if (res->information_elements && res->len_information_elements)
3909 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3910 res->len_information_elements,
3911 res->information_elements);
3912 if (res->beacon_ies && res->len_beacon_ies &&
3913 res->beacon_ies != res->information_elements)
3914 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3915 res->len_beacon_ies, res->beacon_ies);
3917 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3918 if (res->beacon_interval)
3919 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3920 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3921 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3922 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3923 jiffies_to_msecs(jiffies - intbss->ts));
3925 switch (rdev->wiphy.signal_type) {
3926 case CFG80211_SIGNAL_TYPE_MBM:
3927 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3929 case CFG80211_SIGNAL_TYPE_UNSPEC:
3930 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3936 switch (wdev->iftype) {
3937 case NL80211_IFTYPE_P2P_CLIENT:
3938 case NL80211_IFTYPE_STATION:
3939 if (intbss == wdev->current_bss)
3940 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3941 NL80211_BSS_STATUS_ASSOCIATED);
3942 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3943 if (intbss != wdev->auth_bsses[i])
3945 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3946 NL80211_BSS_STATUS_AUTHENTICATED);
3950 case NL80211_IFTYPE_ADHOC:
3951 if (intbss == wdev->current_bss)
3952 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3953 NL80211_BSS_STATUS_IBSS_JOINED);
3959 nla_nest_end(msg, bss);
3961 return genlmsg_end(msg, hdr);
3964 genlmsg_cancel(msg, hdr);
3968 static int nl80211_dump_scan(struct sk_buff *skb,
3969 struct netlink_callback *cb)
3971 struct cfg80211_registered_device *rdev;
3972 struct net_device *dev;
3973 struct cfg80211_internal_bss *scan;
3974 struct wireless_dev *wdev;
3975 int start = cb->args[1], idx = 0;
3978 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3982 wdev = dev->ieee80211_ptr;
3985 spin_lock_bh(&rdev->bss_lock);
3986 cfg80211_bss_expire(rdev);
3988 cb->seq = rdev->bss_generation;
3990 list_for_each_entry(scan, &rdev->bss_list, list) {
3993 if (nl80211_send_bss(skb, cb,
3994 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3995 rdev, wdev, scan) < 0) {
4001 spin_unlock_bh(&rdev->bss_lock);
4005 nl80211_finish_netdev_dump(rdev);
4010 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4011 int flags, struct net_device *dev,
4012 struct survey_info *survey)
4015 struct nlattr *infoattr;
4017 hdr = nl80211hdr_put(msg, pid, seq, flags,
4018 NL80211_CMD_NEW_SURVEY_RESULTS);
4022 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4024 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4026 goto nla_put_failure;
4028 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4029 survey->channel->center_freq);
4030 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4031 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4033 if (survey->filled & SURVEY_INFO_IN_USE)
4034 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
4035 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4036 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4037 survey->channel_time);
4038 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4039 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4040 survey->channel_time_busy);
4041 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4042 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4043 survey->channel_time_ext_busy);
4044 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4045 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4046 survey->channel_time_rx);
4047 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4048 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4049 survey->channel_time_tx);
4051 nla_nest_end(msg, infoattr);
4053 return genlmsg_end(msg, hdr);
4056 genlmsg_cancel(msg, hdr);
4060 static int nl80211_dump_survey(struct sk_buff *skb,
4061 struct netlink_callback *cb)
4063 struct survey_info survey;
4064 struct cfg80211_registered_device *dev;
4065 struct net_device *netdev;
4066 int survey_idx = cb->args[1];
4069 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4073 if (!dev->ops->dump_survey) {
4079 struct ieee80211_channel *chan;
4081 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4088 /* Survey without a channel doesn't make sense */
4089 if (!survey.channel) {
4094 chan = ieee80211_get_channel(&dev->wiphy,
4095 survey.channel->center_freq);
4096 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4101 if (nl80211_send_survey(skb,
4102 NETLINK_CB(cb->skb).pid,
4103 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4111 cb->args[1] = survey_idx;
4114 nl80211_finish_netdev_dump(dev);
4118 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4120 return auth_type <= NL80211_AUTHTYPE_MAX;
4123 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4125 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4126 NL80211_WPA_VERSION_2));
4129 static bool nl80211_valid_akm_suite(u32 akm)
4131 return akm == WLAN_AKM_SUITE_8021X ||
4132 akm == WLAN_AKM_SUITE_PSK;
4135 static bool nl80211_valid_cipher_suite(u32 cipher)
4137 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
4138 cipher == WLAN_CIPHER_SUITE_WEP104 ||
4139 cipher == WLAN_CIPHER_SUITE_TKIP ||
4140 cipher == WLAN_CIPHER_SUITE_CCMP ||
4141 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
4145 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4148 struct net_device *dev = info->user_ptr[1];
4149 struct ieee80211_channel *chan;
4150 const u8 *bssid, *ssid, *ie = NULL;
4151 int err, ssid_len, ie_len = 0;
4152 enum nl80211_auth_type auth_type;
4153 struct key_parse key;
4154 bool local_state_change;
4156 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4159 if (!info->attrs[NL80211_ATTR_MAC])
4162 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4165 if (!info->attrs[NL80211_ATTR_SSID])
4168 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4171 err = nl80211_parse_key(info, &key);
4176 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4178 if (!key.p.key || !key.p.key_len)
4180 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4181 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4182 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4183 key.p.key_len != WLAN_KEY_LEN_WEP104))
4195 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4196 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4205 if (!rdev->ops->auth)
4208 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4209 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4212 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4213 chan = ieee80211_get_channel(&rdev->wiphy,
4214 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4215 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4218 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4219 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4221 if (info->attrs[NL80211_ATTR_IE]) {
4222 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4223 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4226 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4227 if (!nl80211_valid_auth_type(auth_type))
4230 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4232 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4233 ssid, ssid_len, ie, ie_len,
4234 key.p.key, key.p.key_len, key.idx,
4235 local_state_change);
4238 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4239 struct genl_info *info,
4240 struct cfg80211_crypto_settings *settings,
4243 memset(settings, 0, sizeof(*settings));
4245 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4247 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4249 proto = nla_get_u16(
4250 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4251 settings->control_port_ethertype = cpu_to_be16(proto);
4252 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4255 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4256 settings->control_port_no_encrypt = true;
4258 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4260 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4264 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4265 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4266 settings->n_ciphers_pairwise = len / sizeof(u32);
4268 if (len % sizeof(u32))
4271 if (settings->n_ciphers_pairwise > cipher_limit)
4274 memcpy(settings->ciphers_pairwise, data, len);
4276 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4277 if (!nl80211_valid_cipher_suite(
4278 settings->ciphers_pairwise[i]))
4282 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4283 settings->cipher_group =
4284 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4285 if (!nl80211_valid_cipher_suite(settings->cipher_group))
4289 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4290 settings->wpa_versions =
4291 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4292 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4296 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4300 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4301 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4302 settings->n_akm_suites = len / sizeof(u32);
4304 if (len % sizeof(u32))
4307 memcpy(settings->akm_suites, data, len);
4309 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4310 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
4317 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4320 struct net_device *dev = info->user_ptr[1];
4321 struct cfg80211_crypto_settings crypto;
4322 struct ieee80211_channel *chan;
4323 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4324 int err, ssid_len, ie_len = 0;
4325 bool use_mfp = false;
4327 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4330 if (!info->attrs[NL80211_ATTR_MAC] ||
4331 !info->attrs[NL80211_ATTR_SSID] ||
4332 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4335 if (!rdev->ops->assoc)
4338 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4339 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4342 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4344 chan = ieee80211_get_channel(&rdev->wiphy,
4345 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4346 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4349 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4350 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4352 if (info->attrs[NL80211_ATTR_IE]) {
4353 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4354 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4357 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4358 enum nl80211_mfp mfp =
4359 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4360 if (mfp == NL80211_MFP_REQUIRED)
4362 else if (mfp != NL80211_MFP_NO)
4366 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4367 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4369 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4371 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4372 ssid, ssid_len, ie, ie_len, use_mfp,
4378 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4381 struct net_device *dev = info->user_ptr[1];
4382 const u8 *ie = NULL, *bssid;
4385 bool local_state_change;
4387 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4390 if (!info->attrs[NL80211_ATTR_MAC])
4393 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4396 if (!rdev->ops->deauth)
4399 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4400 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4403 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4405 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4406 if (reason_code == 0) {
4407 /* Reason Code 0 is reserved */
4411 if (info->attrs[NL80211_ATTR_IE]) {
4412 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4413 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4416 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4418 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4419 local_state_change);
4422 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4425 struct net_device *dev = info->user_ptr[1];
4426 const u8 *ie = NULL, *bssid;
4429 bool local_state_change;
4431 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4434 if (!info->attrs[NL80211_ATTR_MAC])
4437 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4440 if (!rdev->ops->disassoc)
4443 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4444 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4447 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4449 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4450 if (reason_code == 0) {
4451 /* Reason Code 0 is reserved */
4455 if (info->attrs[NL80211_ATTR_IE]) {
4456 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4457 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4460 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4462 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4463 local_state_change);
4467 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4468 int mcast_rate[IEEE80211_NUM_BANDS],
4471 struct wiphy *wiphy = &rdev->wiphy;
4475 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4476 struct ieee80211_supported_band *sband;
4478 sband = wiphy->bands[band];
4482 for (i = 0; i < sband->n_bitrates; i++) {
4483 if (sband->bitrates[i].bitrate == rateval) {
4484 mcast_rate[band] = i + 1;
4494 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4497 struct net_device *dev = info->user_ptr[1];
4498 struct cfg80211_ibss_params ibss;
4499 struct wiphy *wiphy;
4500 struct cfg80211_cached_keys *connkeys = NULL;
4503 memset(&ibss, 0, sizeof(ibss));
4505 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4508 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4509 !info->attrs[NL80211_ATTR_SSID] ||
4510 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4513 ibss.beacon_interval = 100;
4515 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4516 ibss.beacon_interval =
4517 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4518 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4522 if (!rdev->ops->join_ibss)
4525 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4528 wiphy = &rdev->wiphy;
4530 if (info->attrs[NL80211_ATTR_MAC]) {
4531 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4533 if (!is_valid_ether_addr(ibss.bssid))
4536 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4537 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4539 if (info->attrs[NL80211_ATTR_IE]) {
4540 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4541 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4544 ibss.channel = ieee80211_get_channel(wiphy,
4545 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4546 if (!ibss.channel ||
4547 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4548 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4551 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4552 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4554 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4556 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4558 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4559 struct ieee80211_supported_band *sband =
4560 wiphy->bands[ibss.channel->band];
4563 err = ieee80211_get_ratemask(sband, rates, n_rates,
4569 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4570 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4571 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4574 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4575 connkeys = nl80211_parse_connkeys(rdev,
4576 info->attrs[NL80211_ATTR_KEYS]);
4577 if (IS_ERR(connkeys))
4578 return PTR_ERR(connkeys);
4581 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4587 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4590 struct net_device *dev = info->user_ptr[1];
4592 if (!rdev->ops->leave_ibss)
4595 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4598 return cfg80211_leave_ibss(rdev, dev, false);
4601 #ifdef CONFIG_NL80211_TESTMODE
4602 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4606 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4611 if (!info->attrs[NL80211_ATTR_TESTDATA])
4615 if (rdev->ops->testmode_cmd) {
4616 rdev->testmode_info = info;
4617 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4618 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4619 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4620 rdev->testmode_info = NULL;
4626 static int nl80211_testmode_dump(struct sk_buff *skb,
4627 struct netlink_callback *cb)
4629 struct cfg80211_registered_device *dev;
4637 * 0 is a valid index, but not valid for args[0],
4638 * so we need to offset by 1.
4640 phy_idx = cb->args[0] - 1;
4642 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4643 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4647 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4649 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4650 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4652 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4656 data = nla_data((void *)cb->args[1]);
4657 data_len = nla_len((void *)cb->args[1]);
4660 mutex_lock(&cfg80211_mutex);
4661 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4663 mutex_unlock(&cfg80211_mutex);
4666 cfg80211_lock_rdev(dev);
4667 mutex_unlock(&cfg80211_mutex);
4669 if (!dev->ops->testmode_dump) {
4675 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4676 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4677 NL80211_CMD_TESTMODE);
4678 struct nlattr *tmdata;
4680 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4681 genlmsg_cancel(skb, hdr);
4685 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4687 genlmsg_cancel(skb, hdr);
4690 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4692 nla_nest_end(skb, tmdata);
4694 if (err == -ENOBUFS || err == -ENOENT) {
4695 genlmsg_cancel(skb, hdr);
4698 genlmsg_cancel(skb, hdr);
4702 genlmsg_end(skb, hdr);
4707 cb->args[0] = phy_idx + 1;
4709 cfg80211_unlock_rdev(dev);
4713 static struct sk_buff *
4714 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4715 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4717 struct sk_buff *skb;
4719 struct nlattr *data;
4721 skb = nlmsg_new(approxlen + 100, gfp);
4725 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4731 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4732 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4734 ((void **)skb->cb)[0] = rdev;
4735 ((void **)skb->cb)[1] = hdr;
4736 ((void **)skb->cb)[2] = data;
4745 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4748 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4750 if (WARN_ON(!rdev->testmode_info))
4753 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4754 rdev->testmode_info->snd_pid,
4755 rdev->testmode_info->snd_seq,
4758 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4760 int cfg80211_testmode_reply(struct sk_buff *skb)
4762 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4763 void *hdr = ((void **)skb->cb)[1];
4764 struct nlattr *data = ((void **)skb->cb)[2];
4766 if (WARN_ON(!rdev->testmode_info)) {
4771 nla_nest_end(skb, data);
4772 genlmsg_end(skb, hdr);
4773 return genlmsg_reply(skb, rdev->testmode_info);
4775 EXPORT_SYMBOL(cfg80211_testmode_reply);
4777 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4778 int approxlen, gfp_t gfp)
4780 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4782 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4784 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4786 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4788 void *hdr = ((void **)skb->cb)[1];
4789 struct nlattr *data = ((void **)skb->cb)[2];
4791 nla_nest_end(skb, data);
4792 genlmsg_end(skb, hdr);
4793 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4795 EXPORT_SYMBOL(cfg80211_testmode_event);
4798 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4801 struct net_device *dev = info->user_ptr[1];
4802 struct cfg80211_connect_params connect;
4803 struct wiphy *wiphy;
4804 struct cfg80211_cached_keys *connkeys = NULL;
4807 memset(&connect, 0, sizeof(connect));
4809 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4812 if (!info->attrs[NL80211_ATTR_SSID] ||
4813 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4816 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4818 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4819 if (!nl80211_valid_auth_type(connect.auth_type))
4822 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4824 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4826 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
4827 NL80211_MAX_NR_CIPHER_SUITES);
4831 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4832 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4835 wiphy = &rdev->wiphy;
4837 if (info->attrs[NL80211_ATTR_MAC])
4838 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4839 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4840 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4842 if (info->attrs[NL80211_ATTR_IE]) {
4843 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4844 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4847 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4849 ieee80211_get_channel(wiphy,
4850 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4851 if (!connect.channel ||
4852 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4856 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4857 connkeys = nl80211_parse_connkeys(rdev,
4858 info->attrs[NL80211_ATTR_KEYS]);
4859 if (IS_ERR(connkeys))
4860 return PTR_ERR(connkeys);
4863 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4869 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4872 struct net_device *dev = info->user_ptr[1];
4875 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4876 reason = WLAN_REASON_DEAUTH_LEAVING;
4878 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4883 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4884 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4887 return cfg80211_disconnect(rdev, dev, reason, true);
4890 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4897 if (!info->attrs[NL80211_ATTR_PID])
4900 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4902 net = get_net_ns_by_pid(pid);
4904 return PTR_ERR(net);
4908 /* check if anything to do */
4909 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4910 err = cfg80211_switch_netns(rdev, net);
4916 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4919 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4920 struct cfg80211_pmksa *pmksa) = NULL;
4921 struct net_device *dev = info->user_ptr[1];
4922 struct cfg80211_pmksa pmksa;
4924 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4926 if (!info->attrs[NL80211_ATTR_MAC])
4929 if (!info->attrs[NL80211_ATTR_PMKID])
4932 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4933 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4935 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4936 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4939 switch (info->genlhdr->cmd) {
4940 case NL80211_CMD_SET_PMKSA:
4941 rdev_ops = rdev->ops->set_pmksa;
4943 case NL80211_CMD_DEL_PMKSA:
4944 rdev_ops = rdev->ops->del_pmksa;
4954 return rdev_ops(&rdev->wiphy, dev, &pmksa);
4957 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4960 struct net_device *dev = info->user_ptr[1];
4962 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4963 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4966 if (!rdev->ops->flush_pmksa)
4969 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4972 static int nl80211_remain_on_channel(struct sk_buff *skb,
4973 struct genl_info *info)
4975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4976 struct net_device *dev = info->user_ptr[1];
4977 struct ieee80211_channel *chan;
4978 struct sk_buff *msg;
4981 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4985 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4986 !info->attrs[NL80211_ATTR_DURATION])
4989 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4992 * We should be on that channel for at least one jiffie,
4993 * and more than 5 seconds seems excessive.
4995 if (!duration || !msecs_to_jiffies(duration) ||
4996 duration > rdev->wiphy.max_remain_on_channel_duration)
4999 if (!rdev->ops->remain_on_channel)
5002 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5003 channel_type = nla_get_u32(
5004 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5005 if (channel_type != NL80211_CHAN_NO_HT &&
5006 channel_type != NL80211_CHAN_HT20 &&
5007 channel_type != NL80211_CHAN_HT40PLUS &&
5008 channel_type != NL80211_CHAN_HT40MINUS)
5012 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5013 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5017 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5021 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5022 NL80211_CMD_REMAIN_ON_CHANNEL);
5029 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5030 channel_type, duration, &cookie);
5035 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5037 genlmsg_end(msg, hdr);
5039 return genlmsg_reply(msg, info);
5048 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5049 struct genl_info *info)
5051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5052 struct net_device *dev = info->user_ptr[1];
5055 if (!info->attrs[NL80211_ATTR_COOKIE])
5058 if (!rdev->ops->cancel_remain_on_channel)
5061 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5063 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5066 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5067 u8 *rates, u8 rates_len)
5072 for (i = 0; i < rates_len; i++) {
5073 int rate = (rates[i] & 0x7f) * 5;
5075 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5076 struct ieee80211_rate *srate =
5077 &sband->bitrates[ridx];
5078 if (rate == srate->bitrate) {
5083 if (ridx == sband->n_bitrates)
5084 return 0; /* rate not found */
5090 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5091 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5092 .len = NL80211_MAX_SUPP_RATES },
5095 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5096 struct genl_info *info)
5098 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5100 struct cfg80211_bitrate_mask mask;
5102 struct net_device *dev = info->user_ptr[1];
5103 struct nlattr *tx_rates;
5104 struct ieee80211_supported_band *sband;
5106 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5109 if (!rdev->ops->set_bitrate_mask)
5112 memset(&mask, 0, sizeof(mask));
5113 /* Default to all rates enabled */
5114 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5115 sband = rdev->wiphy.bands[i];
5116 mask.control[i].legacy =
5117 sband ? (1 << sband->n_bitrates) - 1 : 0;
5121 * The nested attribute uses enum nl80211_band as the index. This maps
5122 * directly to the enum ieee80211_band values used in cfg80211.
5124 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5126 enum ieee80211_band band = nla_type(tx_rates);
5127 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5129 sband = rdev->wiphy.bands[band];
5132 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5133 nla_len(tx_rates), nl80211_txattr_policy);
5134 if (tb[NL80211_TXRATE_LEGACY]) {
5135 mask.control[band].legacy = rateset_to_mask(
5137 nla_data(tb[NL80211_TXRATE_LEGACY]),
5138 nla_len(tb[NL80211_TXRATE_LEGACY]));
5139 if (mask.control[band].legacy == 0)
5144 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5147 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5150 struct net_device *dev = info->user_ptr[1];
5151 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5153 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5156 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5157 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5159 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5160 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5161 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5162 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5163 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5164 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5165 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5168 /* not much point in registering if we can't reply */
5169 if (!rdev->ops->mgmt_tx)
5172 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5174 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5175 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5178 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5181 struct net_device *dev = info->user_ptr[1];
5182 struct ieee80211_channel *chan;
5183 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5184 bool channel_type_valid = false;
5189 struct sk_buff *msg;
5190 unsigned int wait = 0;
5193 if (!info->attrs[NL80211_ATTR_FRAME] ||
5194 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5197 if (!rdev->ops->mgmt_tx)
5200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5202 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5203 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5204 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5205 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5206 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5209 if (info->attrs[NL80211_ATTR_DURATION]) {
5210 if (!rdev->ops->mgmt_tx_cancel_wait)
5212 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5215 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5216 channel_type = nla_get_u32(
5217 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5218 if (channel_type != NL80211_CHAN_NO_HT &&
5219 channel_type != NL80211_CHAN_HT20 &&
5220 channel_type != NL80211_CHAN_HT40PLUS &&
5221 channel_type != NL80211_CHAN_HT40MINUS)
5223 channel_type_valid = true;
5226 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5228 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5229 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5233 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5237 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5244 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5245 channel_type_valid, wait,
5246 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5247 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5252 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5254 genlmsg_end(msg, hdr);
5255 return genlmsg_reply(msg, info);
5264 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5266 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5267 struct net_device *dev = info->user_ptr[1];
5270 if (!info->attrs[NL80211_ATTR_COOKIE])
5273 if (!rdev->ops->mgmt_tx_cancel_wait)
5276 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5277 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5278 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5279 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5280 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5281 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5284 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5286 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5289 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5292 struct wireless_dev *wdev;
5293 struct net_device *dev = info->user_ptr[1];
5298 if (!info->attrs[NL80211_ATTR_PS_STATE])
5301 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5303 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5306 wdev = dev->ieee80211_ptr;
5308 if (!rdev->ops->set_power_mgmt)
5311 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5313 if (state == wdev->ps)
5316 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5323 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5326 enum nl80211_ps_state ps_state;
5327 struct wireless_dev *wdev;
5328 struct net_device *dev = info->user_ptr[1];
5329 struct sk_buff *msg;
5333 wdev = dev->ieee80211_ptr;
5335 if (!rdev->ops->set_power_mgmt)
5338 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5342 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5343 NL80211_CMD_GET_POWER_SAVE);
5350 ps_state = NL80211_PS_ENABLED;
5352 ps_state = NL80211_PS_DISABLED;
5354 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5356 genlmsg_end(msg, hdr);
5357 return genlmsg_reply(msg, info);
5366 static struct nla_policy
5367 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5368 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5369 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5370 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5373 static int nl80211_set_cqm_rssi(struct genl_info *info,
5374 s32 threshold, u32 hysteresis)
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 wdev = dev->ieee80211_ptr;
5385 if (!rdev->ops->set_cqm_rssi_config)
5388 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5389 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5392 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5393 threshold, hysteresis);
5396 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5398 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5402 cqm = info->attrs[NL80211_ATTR_CQM];
5408 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5409 nl80211_attr_cqm_policy);
5413 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5414 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5417 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5418 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5419 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5427 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5430 struct net_device *dev = info->user_ptr[1];
5431 struct mesh_config cfg;
5432 struct mesh_setup setup;
5435 /* start with default */
5436 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5437 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5439 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5440 /* and parse parameters if given */
5441 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5446 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5447 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5450 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5451 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5453 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5454 /* parse additional setup parameters if given */
5455 err = nl80211_parse_mesh_setup(info, &setup);
5460 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5463 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5466 struct net_device *dev = info->user_ptr[1];
5468 return cfg80211_leave_mesh(rdev, dev);
5471 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5474 struct sk_buff *msg;
5477 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5484 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5485 NL80211_CMD_GET_WOWLAN);
5487 goto nla_put_failure;
5490 struct nlattr *nl_wowlan;
5492 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5494 goto nla_put_failure;
5496 if (rdev->wowlan->any)
5497 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5498 if (rdev->wowlan->disconnect)
5499 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5500 if (rdev->wowlan->magic_pkt)
5501 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5502 if (rdev->wowlan->gtk_rekey_failure)
5503 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5504 if (rdev->wowlan->eap_identity_req)
5505 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5506 if (rdev->wowlan->four_way_handshake)
5507 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5508 if (rdev->wowlan->rfkill_release)
5509 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
5510 if (rdev->wowlan->n_patterns) {
5511 struct nlattr *nl_pats, *nl_pat;
5514 nl_pats = nla_nest_start(msg,
5515 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5517 goto nla_put_failure;
5519 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5520 nl_pat = nla_nest_start(msg, i + 1);
5522 goto nla_put_failure;
5523 pat_len = rdev->wowlan->patterns[i].pattern_len;
5524 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5525 DIV_ROUND_UP(pat_len, 8),
5526 rdev->wowlan->patterns[i].mask);
5527 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5529 rdev->wowlan->patterns[i].pattern);
5530 nla_nest_end(msg, nl_pat);
5532 nla_nest_end(msg, nl_pats);
5535 nla_nest_end(msg, nl_wowlan);
5538 genlmsg_end(msg, hdr);
5539 return genlmsg_reply(msg, info);
5546 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5549 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5550 struct cfg80211_wowlan no_triggers = {};
5551 struct cfg80211_wowlan new_triggers = {};
5552 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5555 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5558 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5561 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5562 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5563 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5564 nl80211_wowlan_policy);
5568 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5569 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5571 new_triggers.any = true;
5574 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5575 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5577 new_triggers.disconnect = true;
5580 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5581 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5583 new_triggers.magic_pkt = true;
5586 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5589 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5590 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5592 new_triggers.gtk_rekey_failure = true;
5595 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5596 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5598 new_triggers.eap_identity_req = true;
5601 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5602 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5604 new_triggers.four_way_handshake = true;
5607 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5608 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5610 new_triggers.rfkill_release = true;
5613 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5616 int rem, pat_len, mask_len;
5617 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5619 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5622 if (n_patterns > wowlan->n_patterns)
5625 new_triggers.patterns = kcalloc(n_patterns,
5626 sizeof(new_triggers.patterns[0]),
5628 if (!new_triggers.patterns)
5631 new_triggers.n_patterns = n_patterns;
5634 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5636 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5637 nla_data(pat), nla_len(pat), NULL);
5639 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5640 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5642 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5643 mask_len = DIV_ROUND_UP(pat_len, 8);
5644 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5647 if (pat_len > wowlan->pattern_max_len ||
5648 pat_len < wowlan->pattern_min_len)
5651 new_triggers.patterns[i].mask =
5652 kmalloc(mask_len + pat_len, GFP_KERNEL);
5653 if (!new_triggers.patterns[i].mask) {
5657 new_triggers.patterns[i].pattern =
5658 new_triggers.patterns[i].mask + mask_len;
5659 memcpy(new_triggers.patterns[i].mask,
5660 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5662 new_triggers.patterns[i].pattern_len = pat_len;
5663 memcpy(new_triggers.patterns[i].pattern,
5664 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5670 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5671 struct cfg80211_wowlan *ntrig;
5672 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5678 cfg80211_rdev_free_wowlan(rdev);
5679 rdev->wowlan = ntrig;
5682 cfg80211_rdev_free_wowlan(rdev);
5683 rdev->wowlan = NULL;
5688 for (i = 0; i < new_triggers.n_patterns; i++)
5689 kfree(new_triggers.patterns[i].mask);
5690 kfree(new_triggers.patterns);
5694 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5697 struct net_device *dev = info->user_ptr[1];
5698 struct wireless_dev *wdev = dev->ieee80211_ptr;
5699 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5700 struct cfg80211_gtk_rekey_data rekey_data;
5703 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5706 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5707 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5708 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5709 nl80211_rekey_policy);
5713 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5715 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5717 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5720 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5722 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5724 memcpy(rekey_data.replay_ctr,
5725 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5726 NL80211_REPLAY_CTR_LEN);
5729 if (!wdev->current_bss) {
5734 if (!rdev->ops->set_rekey_data) {
5739 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5745 #define NL80211_FLAG_NEED_WIPHY 0x01
5746 #define NL80211_FLAG_NEED_NETDEV 0x02
5747 #define NL80211_FLAG_NEED_RTNL 0x04
5748 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5749 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5750 NL80211_FLAG_CHECK_NETDEV_UP)
5752 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5753 struct genl_info *info)
5755 struct cfg80211_registered_device *rdev;
5756 struct net_device *dev;
5758 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5763 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5764 rdev = cfg80211_get_dev_from_info(info);
5768 return PTR_ERR(rdev);
5770 info->user_ptr[0] = rdev;
5771 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5772 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5778 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5779 !netif_running(dev)) {
5780 cfg80211_unlock_rdev(rdev);
5786 info->user_ptr[0] = rdev;
5787 info->user_ptr[1] = dev;
5793 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5794 struct genl_info *info)
5796 if (info->user_ptr[0])
5797 cfg80211_unlock_rdev(info->user_ptr[0]);
5798 if (info->user_ptr[1])
5799 dev_put(info->user_ptr[1]);
5800 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5804 static struct genl_ops nl80211_ops[] = {
5806 .cmd = NL80211_CMD_GET_WIPHY,
5807 .doit = nl80211_get_wiphy,
5808 .dumpit = nl80211_dump_wiphy,
5809 .policy = nl80211_policy,
5810 /* can be retrieved by unprivileged users */
5811 .internal_flags = NL80211_FLAG_NEED_WIPHY,
5814 .cmd = NL80211_CMD_SET_WIPHY,
5815 .doit = nl80211_set_wiphy,
5816 .policy = nl80211_policy,
5817 .flags = GENL_ADMIN_PERM,
5818 .internal_flags = NL80211_FLAG_NEED_RTNL,
5821 .cmd = NL80211_CMD_GET_INTERFACE,
5822 .doit = nl80211_get_interface,
5823 .dumpit = nl80211_dump_interface,
5824 .policy = nl80211_policy,
5825 /* can be retrieved by unprivileged users */
5826 .internal_flags = NL80211_FLAG_NEED_NETDEV,
5829 .cmd = NL80211_CMD_SET_INTERFACE,
5830 .doit = nl80211_set_interface,
5831 .policy = nl80211_policy,
5832 .flags = GENL_ADMIN_PERM,
5833 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5834 NL80211_FLAG_NEED_RTNL,
5837 .cmd = NL80211_CMD_NEW_INTERFACE,
5838 .doit = nl80211_new_interface,
5839 .policy = nl80211_policy,
5840 .flags = GENL_ADMIN_PERM,
5841 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5842 NL80211_FLAG_NEED_RTNL,
5845 .cmd = NL80211_CMD_DEL_INTERFACE,
5846 .doit = nl80211_del_interface,
5847 .policy = nl80211_policy,
5848 .flags = GENL_ADMIN_PERM,
5849 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5850 NL80211_FLAG_NEED_RTNL,
5853 .cmd = NL80211_CMD_GET_KEY,
5854 .doit = nl80211_get_key,
5855 .policy = nl80211_policy,
5856 .flags = GENL_ADMIN_PERM,
5857 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5858 NL80211_FLAG_NEED_RTNL,
5861 .cmd = NL80211_CMD_SET_KEY,
5862 .doit = nl80211_set_key,
5863 .policy = nl80211_policy,
5864 .flags = GENL_ADMIN_PERM,
5865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5866 NL80211_FLAG_NEED_RTNL,
5869 .cmd = NL80211_CMD_NEW_KEY,
5870 .doit = nl80211_new_key,
5871 .policy = nl80211_policy,
5872 .flags = GENL_ADMIN_PERM,
5873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5874 NL80211_FLAG_NEED_RTNL,
5877 .cmd = NL80211_CMD_DEL_KEY,
5878 .doit = nl80211_del_key,
5879 .policy = nl80211_policy,
5880 .flags = GENL_ADMIN_PERM,
5881 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5882 NL80211_FLAG_NEED_RTNL,
5885 .cmd = NL80211_CMD_SET_BEACON,
5886 .policy = nl80211_policy,
5887 .flags = GENL_ADMIN_PERM,
5888 .doit = nl80211_addset_beacon,
5889 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5890 NL80211_FLAG_NEED_RTNL,
5893 .cmd = NL80211_CMD_NEW_BEACON,
5894 .policy = nl80211_policy,
5895 .flags = GENL_ADMIN_PERM,
5896 .doit = nl80211_addset_beacon,
5897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5898 NL80211_FLAG_NEED_RTNL,
5901 .cmd = NL80211_CMD_DEL_BEACON,
5902 .policy = nl80211_policy,
5903 .flags = GENL_ADMIN_PERM,
5904 .doit = nl80211_del_beacon,
5905 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5906 NL80211_FLAG_NEED_RTNL,
5909 .cmd = NL80211_CMD_GET_STATION,
5910 .doit = nl80211_get_station,
5911 .dumpit = nl80211_dump_station,
5912 .policy = nl80211_policy,
5913 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5914 NL80211_FLAG_NEED_RTNL,
5917 .cmd = NL80211_CMD_SET_STATION,
5918 .doit = nl80211_set_station,
5919 .policy = nl80211_policy,
5920 .flags = GENL_ADMIN_PERM,
5921 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5922 NL80211_FLAG_NEED_RTNL,
5925 .cmd = NL80211_CMD_NEW_STATION,
5926 .doit = nl80211_new_station,
5927 .policy = nl80211_policy,
5928 .flags = GENL_ADMIN_PERM,
5929 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5930 NL80211_FLAG_NEED_RTNL,
5933 .cmd = NL80211_CMD_DEL_STATION,
5934 .doit = nl80211_del_station,
5935 .policy = nl80211_policy,
5936 .flags = GENL_ADMIN_PERM,
5937 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5938 NL80211_FLAG_NEED_RTNL,
5941 .cmd = NL80211_CMD_GET_MPATH,
5942 .doit = nl80211_get_mpath,
5943 .dumpit = nl80211_dump_mpath,
5944 .policy = nl80211_policy,
5945 .flags = GENL_ADMIN_PERM,
5946 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5947 NL80211_FLAG_NEED_RTNL,
5950 .cmd = NL80211_CMD_SET_MPATH,
5951 .doit = nl80211_set_mpath,
5952 .policy = nl80211_policy,
5953 .flags = GENL_ADMIN_PERM,
5954 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5955 NL80211_FLAG_NEED_RTNL,
5958 .cmd = NL80211_CMD_NEW_MPATH,
5959 .doit = nl80211_new_mpath,
5960 .policy = nl80211_policy,
5961 .flags = GENL_ADMIN_PERM,
5962 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5963 NL80211_FLAG_NEED_RTNL,
5966 .cmd = NL80211_CMD_DEL_MPATH,
5967 .doit = nl80211_del_mpath,
5968 .policy = nl80211_policy,
5969 .flags = GENL_ADMIN_PERM,
5970 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5971 NL80211_FLAG_NEED_RTNL,
5974 .cmd = NL80211_CMD_SET_BSS,
5975 .doit = nl80211_set_bss,
5976 .policy = nl80211_policy,
5977 .flags = GENL_ADMIN_PERM,
5978 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5979 NL80211_FLAG_NEED_RTNL,
5982 .cmd = NL80211_CMD_GET_REG,
5983 .doit = nl80211_get_reg,
5984 .policy = nl80211_policy,
5985 /* can be retrieved by unprivileged users */
5988 .cmd = NL80211_CMD_SET_REG,
5989 .doit = nl80211_set_reg,
5990 .policy = nl80211_policy,
5991 .flags = GENL_ADMIN_PERM,
5994 .cmd = NL80211_CMD_REQ_SET_REG,
5995 .doit = nl80211_req_set_reg,
5996 .policy = nl80211_policy,
5997 .flags = GENL_ADMIN_PERM,
6000 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6001 .doit = nl80211_get_mesh_config,
6002 .policy = nl80211_policy,
6003 /* can be retrieved by unprivileged users */
6004 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6005 NL80211_FLAG_NEED_RTNL,
6008 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6009 .doit = nl80211_update_mesh_config,
6010 .policy = nl80211_policy,
6011 .flags = GENL_ADMIN_PERM,
6012 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6013 NL80211_FLAG_NEED_RTNL,
6016 .cmd = NL80211_CMD_TRIGGER_SCAN,
6017 .doit = nl80211_trigger_scan,
6018 .policy = nl80211_policy,
6019 .flags = GENL_ADMIN_PERM,
6020 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6021 NL80211_FLAG_NEED_RTNL,
6024 .cmd = NL80211_CMD_GET_SCAN,
6025 .policy = nl80211_policy,
6026 .dumpit = nl80211_dump_scan,
6029 .cmd = NL80211_CMD_START_SCHED_SCAN,
6030 .doit = nl80211_start_sched_scan,
6031 .policy = nl80211_policy,
6032 .flags = GENL_ADMIN_PERM,
6033 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6034 NL80211_FLAG_NEED_RTNL,
6037 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6038 .doit = nl80211_stop_sched_scan,
6039 .policy = nl80211_policy,
6040 .flags = GENL_ADMIN_PERM,
6041 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6042 NL80211_FLAG_NEED_RTNL,
6045 .cmd = NL80211_CMD_AUTHENTICATE,
6046 .doit = nl80211_authenticate,
6047 .policy = nl80211_policy,
6048 .flags = GENL_ADMIN_PERM,
6049 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6050 NL80211_FLAG_NEED_RTNL,
6053 .cmd = NL80211_CMD_ASSOCIATE,
6054 .doit = nl80211_associate,
6055 .policy = nl80211_policy,
6056 .flags = GENL_ADMIN_PERM,
6057 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6058 NL80211_FLAG_NEED_RTNL,
6061 .cmd = NL80211_CMD_DEAUTHENTICATE,
6062 .doit = nl80211_deauthenticate,
6063 .policy = nl80211_policy,
6064 .flags = GENL_ADMIN_PERM,
6065 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6066 NL80211_FLAG_NEED_RTNL,
6069 .cmd = NL80211_CMD_DISASSOCIATE,
6070 .doit = nl80211_disassociate,
6071 .policy = nl80211_policy,
6072 .flags = GENL_ADMIN_PERM,
6073 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6074 NL80211_FLAG_NEED_RTNL,
6077 .cmd = NL80211_CMD_JOIN_IBSS,
6078 .doit = nl80211_join_ibss,
6079 .policy = nl80211_policy,
6080 .flags = GENL_ADMIN_PERM,
6081 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6082 NL80211_FLAG_NEED_RTNL,
6085 .cmd = NL80211_CMD_LEAVE_IBSS,
6086 .doit = nl80211_leave_ibss,
6087 .policy = nl80211_policy,
6088 .flags = GENL_ADMIN_PERM,
6089 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6090 NL80211_FLAG_NEED_RTNL,
6092 #ifdef CONFIG_NL80211_TESTMODE
6094 .cmd = NL80211_CMD_TESTMODE,
6095 .doit = nl80211_testmode_do,
6096 .dumpit = nl80211_testmode_dump,
6097 .policy = nl80211_policy,
6098 .flags = GENL_ADMIN_PERM,
6099 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6100 NL80211_FLAG_NEED_RTNL,
6104 .cmd = NL80211_CMD_CONNECT,
6105 .doit = nl80211_connect,
6106 .policy = nl80211_policy,
6107 .flags = GENL_ADMIN_PERM,
6108 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6109 NL80211_FLAG_NEED_RTNL,
6112 .cmd = NL80211_CMD_DISCONNECT,
6113 .doit = nl80211_disconnect,
6114 .policy = nl80211_policy,
6115 .flags = GENL_ADMIN_PERM,
6116 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6117 NL80211_FLAG_NEED_RTNL,
6120 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6121 .doit = nl80211_wiphy_netns,
6122 .policy = nl80211_policy,
6123 .flags = GENL_ADMIN_PERM,
6124 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6125 NL80211_FLAG_NEED_RTNL,
6128 .cmd = NL80211_CMD_GET_SURVEY,
6129 .policy = nl80211_policy,
6130 .dumpit = nl80211_dump_survey,
6133 .cmd = NL80211_CMD_SET_PMKSA,
6134 .doit = nl80211_setdel_pmksa,
6135 .policy = nl80211_policy,
6136 .flags = GENL_ADMIN_PERM,
6137 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6138 NL80211_FLAG_NEED_RTNL,
6141 .cmd = NL80211_CMD_DEL_PMKSA,
6142 .doit = nl80211_setdel_pmksa,
6143 .policy = nl80211_policy,
6144 .flags = GENL_ADMIN_PERM,
6145 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6146 NL80211_FLAG_NEED_RTNL,
6149 .cmd = NL80211_CMD_FLUSH_PMKSA,
6150 .doit = nl80211_flush_pmksa,
6151 .policy = nl80211_policy,
6152 .flags = GENL_ADMIN_PERM,
6153 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6154 NL80211_FLAG_NEED_RTNL,
6157 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6158 .doit = nl80211_remain_on_channel,
6159 .policy = nl80211_policy,
6160 .flags = GENL_ADMIN_PERM,
6161 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6162 NL80211_FLAG_NEED_RTNL,
6165 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6166 .doit = nl80211_cancel_remain_on_channel,
6167 .policy = nl80211_policy,
6168 .flags = GENL_ADMIN_PERM,
6169 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6170 NL80211_FLAG_NEED_RTNL,
6173 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6174 .doit = nl80211_set_tx_bitrate_mask,
6175 .policy = nl80211_policy,
6176 .flags = GENL_ADMIN_PERM,
6177 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6178 NL80211_FLAG_NEED_RTNL,
6181 .cmd = NL80211_CMD_REGISTER_FRAME,
6182 .doit = nl80211_register_mgmt,
6183 .policy = nl80211_policy,
6184 .flags = GENL_ADMIN_PERM,
6185 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6186 NL80211_FLAG_NEED_RTNL,
6189 .cmd = NL80211_CMD_FRAME,
6190 .doit = nl80211_tx_mgmt,
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_FRAME_WAIT_CANCEL,
6198 .doit = nl80211_tx_mgmt_cancel_wait,
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_POWER_SAVE,
6206 .doit = nl80211_set_power_save,
6207 .policy = nl80211_policy,
6208 .flags = GENL_ADMIN_PERM,
6209 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6210 NL80211_FLAG_NEED_RTNL,
6213 .cmd = NL80211_CMD_GET_POWER_SAVE,
6214 .doit = nl80211_get_power_save,
6215 .policy = nl80211_policy,
6216 /* can be retrieved by unprivileged users */
6217 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6218 NL80211_FLAG_NEED_RTNL,
6221 .cmd = NL80211_CMD_SET_CQM,
6222 .doit = nl80211_set_cqm,
6223 .policy = nl80211_policy,
6224 .flags = GENL_ADMIN_PERM,
6225 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6226 NL80211_FLAG_NEED_RTNL,
6229 .cmd = NL80211_CMD_SET_CHANNEL,
6230 .doit = nl80211_set_channel,
6231 .policy = nl80211_policy,
6232 .flags = GENL_ADMIN_PERM,
6233 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6234 NL80211_FLAG_NEED_RTNL,
6237 .cmd = NL80211_CMD_SET_WDS_PEER,
6238 .doit = nl80211_set_wds_peer,
6239 .policy = nl80211_policy,
6240 .flags = GENL_ADMIN_PERM,
6241 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6242 NL80211_FLAG_NEED_RTNL,
6245 .cmd = NL80211_CMD_JOIN_MESH,
6246 .doit = nl80211_join_mesh,
6247 .policy = nl80211_policy,
6248 .flags = GENL_ADMIN_PERM,
6249 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6250 NL80211_FLAG_NEED_RTNL,
6253 .cmd = NL80211_CMD_LEAVE_MESH,
6254 .doit = nl80211_leave_mesh,
6255 .policy = nl80211_policy,
6256 .flags = GENL_ADMIN_PERM,
6257 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6258 NL80211_FLAG_NEED_RTNL,
6261 .cmd = NL80211_CMD_GET_WOWLAN,
6262 .doit = nl80211_get_wowlan,
6263 .policy = nl80211_policy,
6264 /* can be retrieved by unprivileged users */
6265 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6266 NL80211_FLAG_NEED_RTNL,
6269 .cmd = NL80211_CMD_SET_WOWLAN,
6270 .doit = nl80211_set_wowlan,
6271 .policy = nl80211_policy,
6272 .flags = GENL_ADMIN_PERM,
6273 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6274 NL80211_FLAG_NEED_RTNL,
6277 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6278 .doit = nl80211_set_rekey_data,
6279 .policy = nl80211_policy,
6280 .flags = GENL_ADMIN_PERM,
6281 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6282 NL80211_FLAG_NEED_RTNL,
6286 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6290 /* multicast groups */
6291 static struct genl_multicast_group nl80211_config_mcgrp = {
6294 static struct genl_multicast_group nl80211_scan_mcgrp = {
6297 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6298 .name = "regulatory",
6301 /* notification functions */
6303 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6305 struct sk_buff *msg;
6307 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6311 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6316 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6317 nl80211_config_mcgrp.id, GFP_KERNEL);
6320 static int nl80211_add_scan_req(struct sk_buff *msg,
6321 struct cfg80211_registered_device *rdev)
6323 struct cfg80211_scan_request *req = rdev->scan_req;
6324 struct nlattr *nest;
6327 ASSERT_RDEV_LOCK(rdev);
6332 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6334 goto nla_put_failure;
6335 for (i = 0; i < req->n_ssids; i++)
6336 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6337 nla_nest_end(msg, nest);
6339 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6341 goto nla_put_failure;
6342 for (i = 0; i < req->n_channels; i++)
6343 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6344 nla_nest_end(msg, nest);
6347 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6354 static int nl80211_send_scan_msg(struct sk_buff *msg,
6355 struct cfg80211_registered_device *rdev,
6356 struct net_device *netdev,
6357 u32 pid, u32 seq, int flags,
6362 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6366 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6367 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6369 /* ignore errors and send incomplete event anyway */
6370 nl80211_add_scan_req(msg, rdev);
6372 return genlmsg_end(msg, hdr);
6375 genlmsg_cancel(msg, hdr);
6380 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6381 struct cfg80211_registered_device *rdev,
6382 struct net_device *netdev,
6383 u32 pid, u32 seq, int flags, u32 cmd)
6387 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6391 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6392 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6394 return genlmsg_end(msg, hdr);
6397 genlmsg_cancel(msg, hdr);
6401 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6402 struct net_device *netdev)
6404 struct sk_buff *msg;
6406 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6410 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6411 NL80211_CMD_TRIGGER_SCAN) < 0) {
6416 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6417 nl80211_scan_mcgrp.id, GFP_KERNEL);
6420 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6421 struct net_device *netdev)
6423 struct sk_buff *msg;
6425 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6429 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6430 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
6435 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6436 nl80211_scan_mcgrp.id, GFP_KERNEL);
6439 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6440 struct net_device *netdev)
6442 struct sk_buff *msg;
6444 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6448 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6449 NL80211_CMD_SCAN_ABORTED) < 0) {
6454 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6455 nl80211_scan_mcgrp.id, GFP_KERNEL);
6458 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6459 struct net_device *netdev)
6461 struct sk_buff *msg;
6463 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6467 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6468 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6473 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6474 nl80211_scan_mcgrp.id, GFP_KERNEL);
6477 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6478 struct net_device *netdev, u32 cmd)
6480 struct sk_buff *msg;
6482 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6486 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6491 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6492 nl80211_scan_mcgrp.id, GFP_KERNEL);
6496 * This can happen on global regulatory changes or device specific settings
6497 * based on custom world regulatory domains.
6499 void nl80211_send_reg_change_event(struct regulatory_request *request)
6501 struct sk_buff *msg;
6504 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6508 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6514 /* Userspace can always count this one always being set */
6515 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6517 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6518 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6519 NL80211_REGDOM_TYPE_WORLD);
6520 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6521 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6522 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6523 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6525 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6526 NL80211_REGDOM_TYPE_INTERSECTION);
6528 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6529 NL80211_REGDOM_TYPE_COUNTRY);
6530 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6533 if (wiphy_idx_valid(request->wiphy_idx))
6534 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6536 if (genlmsg_end(msg, hdr) < 0) {
6542 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6549 genlmsg_cancel(msg, hdr);
6553 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6554 struct net_device *netdev,
6555 const u8 *buf, size_t len,
6556 enum nl80211_commands cmd, gfp_t gfp)
6558 struct sk_buff *msg;
6561 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6565 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6571 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6572 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6573 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6575 if (genlmsg_end(msg, hdr) < 0) {
6580 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6581 nl80211_mlme_mcgrp.id, gfp);
6585 genlmsg_cancel(msg, hdr);
6589 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
6590 struct net_device *netdev, const u8 *buf,
6591 size_t len, gfp_t gfp)
6593 nl80211_send_mlme_event(rdev, netdev, buf, len,
6594 NL80211_CMD_AUTHENTICATE, gfp);
6597 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6598 struct net_device *netdev, const u8 *buf,
6599 size_t len, gfp_t gfp)
6601 nl80211_send_mlme_event(rdev, netdev, buf, len,
6602 NL80211_CMD_ASSOCIATE, gfp);
6605 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
6606 struct net_device *netdev, const u8 *buf,
6607 size_t len, gfp_t gfp)
6609 nl80211_send_mlme_event(rdev, netdev, buf, len,
6610 NL80211_CMD_DEAUTHENTICATE, gfp);
6613 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6614 struct net_device *netdev, const u8 *buf,
6615 size_t len, gfp_t gfp)
6617 nl80211_send_mlme_event(rdev, netdev, buf, len,
6618 NL80211_CMD_DISASSOCIATE, gfp);
6621 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6622 struct net_device *netdev, const u8 *buf,
6623 size_t len, gfp_t gfp)
6625 nl80211_send_mlme_event(rdev, netdev, buf, len,
6626 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6629 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6630 struct net_device *netdev, const u8 *buf,
6631 size_t len, gfp_t gfp)
6633 nl80211_send_mlme_event(rdev, netdev, buf, len,
6634 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6637 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6638 struct net_device *netdev, int cmd,
6639 const u8 *addr, gfp_t gfp)
6641 struct sk_buff *msg;
6644 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6648 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6654 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6655 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6656 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6657 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6659 if (genlmsg_end(msg, hdr) < 0) {
6664 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6665 nl80211_mlme_mcgrp.id, gfp);
6669 genlmsg_cancel(msg, hdr);
6673 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
6674 struct net_device *netdev, const u8 *addr,
6677 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
6681 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
6682 struct net_device *netdev, const u8 *addr,
6685 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6689 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6690 struct net_device *netdev, const u8 *bssid,
6691 const u8 *req_ie, size_t req_ie_len,
6692 const u8 *resp_ie, size_t resp_ie_len,
6693 u16 status, gfp_t gfp)
6695 struct sk_buff *msg;
6698 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6702 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6708 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6709 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6711 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6712 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6714 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6716 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6718 if (genlmsg_end(msg, hdr) < 0) {
6723 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6724 nl80211_mlme_mcgrp.id, gfp);
6728 genlmsg_cancel(msg, hdr);
6733 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6734 struct net_device *netdev, const u8 *bssid,
6735 const u8 *req_ie, size_t req_ie_len,
6736 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6738 struct sk_buff *msg;
6741 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6745 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6751 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6752 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6753 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6755 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6757 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6759 if (genlmsg_end(msg, hdr) < 0) {
6764 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6765 nl80211_mlme_mcgrp.id, gfp);
6769 genlmsg_cancel(msg, hdr);
6774 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6775 struct net_device *netdev, u16 reason,
6776 const u8 *ie, size_t ie_len, bool from_ap)
6778 struct sk_buff *msg;
6781 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6785 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6791 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6792 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6793 if (from_ap && reason)
6794 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6796 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6798 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6800 if (genlmsg_end(msg, hdr) < 0) {
6805 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6806 nl80211_mlme_mcgrp.id, GFP_KERNEL);
6810 genlmsg_cancel(msg, hdr);
6815 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6816 struct net_device *netdev, const u8 *bssid,
6819 struct sk_buff *msg;
6822 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6826 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6832 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6833 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6834 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6836 if (genlmsg_end(msg, hdr) < 0) {
6841 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6842 nl80211_mlme_mcgrp.id, gfp);
6846 genlmsg_cancel(msg, hdr);
6850 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6851 struct net_device *netdev,
6852 const u8 *macaddr, const u8* ie, u8 ie_len,
6855 struct sk_buff *msg;
6858 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6862 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6868 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6869 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6870 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6872 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6874 if (genlmsg_end(msg, hdr) < 0) {
6879 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6880 nl80211_mlme_mcgrp.id, gfp);
6884 genlmsg_cancel(msg, hdr);
6888 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6889 struct net_device *netdev, const u8 *addr,
6890 enum nl80211_key_type key_type, int key_id,
6891 const u8 *tsc, gfp_t gfp)
6893 struct sk_buff *msg;
6896 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6900 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
6906 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6907 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6909 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6910 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
6912 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
6914 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
6916 if (genlmsg_end(msg, hdr) < 0) {
6921 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6922 nl80211_mlme_mcgrp.id, gfp);
6926 genlmsg_cancel(msg, hdr);
6930 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
6931 struct ieee80211_channel *channel_before,
6932 struct ieee80211_channel *channel_after)
6934 struct sk_buff *msg;
6936 struct nlattr *nl_freq;
6938 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6942 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
6949 * Since we are applying the beacon hint to a wiphy we know its
6950 * wiphy_idx is valid
6952 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
6955 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
6957 goto nla_put_failure;
6958 if (nl80211_msg_put_channel(msg, channel_before))
6959 goto nla_put_failure;
6960 nla_nest_end(msg, nl_freq);
6963 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
6965 goto nla_put_failure;
6966 if (nl80211_msg_put_channel(msg, channel_after))
6967 goto nla_put_failure;
6968 nla_nest_end(msg, nl_freq);
6970 if (genlmsg_end(msg, hdr) < 0) {
6976 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6983 genlmsg_cancel(msg, hdr);
6987 static void nl80211_send_remain_on_chan_event(
6988 int cmd, struct cfg80211_registered_device *rdev,
6989 struct net_device *netdev, u64 cookie,
6990 struct ieee80211_channel *chan,
6991 enum nl80211_channel_type channel_type,
6992 unsigned int duration, gfp_t gfp)
6994 struct sk_buff *msg;
6997 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7001 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7007 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7008 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7009 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7010 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7011 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7013 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7014 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7016 if (genlmsg_end(msg, hdr) < 0) {
7021 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7022 nl80211_mlme_mcgrp.id, gfp);
7026 genlmsg_cancel(msg, hdr);
7030 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7031 struct net_device *netdev, u64 cookie,
7032 struct ieee80211_channel *chan,
7033 enum nl80211_channel_type channel_type,
7034 unsigned int duration, gfp_t gfp)
7036 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7037 rdev, netdev, cookie, chan,
7038 channel_type, duration, gfp);
7041 void nl80211_send_remain_on_channel_cancel(
7042 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7043 u64 cookie, struct ieee80211_channel *chan,
7044 enum nl80211_channel_type channel_type, gfp_t gfp)
7046 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7047 rdev, netdev, cookie, chan,
7048 channel_type, 0, gfp);
7051 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7052 struct net_device *dev, const u8 *mac_addr,
7053 struct station_info *sinfo, gfp_t gfp)
7055 struct sk_buff *msg;
7057 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7061 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7066 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7067 nl80211_mlme_mcgrp.id, gfp);
7070 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7071 struct net_device *dev, const u8 *mac_addr,
7074 struct sk_buff *msg;
7077 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7081 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7087 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7088 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7090 if (genlmsg_end(msg, hdr) < 0) {
7095 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7096 nl80211_mlme_mcgrp.id, gfp);
7100 genlmsg_cancel(msg, hdr);
7104 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7105 struct net_device *netdev, u32 nlpid,
7106 int freq, const u8 *buf, size_t len, gfp_t gfp)
7108 struct sk_buff *msg;
7112 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7116 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7122 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7123 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7124 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7125 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7127 err = genlmsg_end(msg, hdr);
7133 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7139 genlmsg_cancel(msg, hdr);
7144 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7145 struct net_device *netdev, u64 cookie,
7146 const u8 *buf, size_t len, bool ack,
7149 struct sk_buff *msg;
7152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7156 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7162 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7163 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7164 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7165 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7167 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7169 if (genlmsg_end(msg, hdr) < 0) {
7174 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7178 genlmsg_cancel(msg, hdr);
7183 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7184 struct net_device *netdev,
7185 enum nl80211_cqm_rssi_threshold_event rssi_event,
7188 struct sk_buff *msg;
7189 struct nlattr *pinfoattr;
7192 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7196 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7202 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7203 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7205 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7207 goto nla_put_failure;
7209 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7212 nla_nest_end(msg, pinfoattr);
7214 if (genlmsg_end(msg, hdr) < 0) {
7219 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7220 nl80211_mlme_mcgrp.id, gfp);
7224 genlmsg_cancel(msg, hdr);
7228 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7229 struct net_device *netdev, const u8 *bssid,
7230 const u8 *replay_ctr, gfp_t gfp)
7232 struct sk_buff *msg;
7233 struct nlattr *rekey_attr;
7236 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7240 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7246 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7247 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7248 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7250 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7252 goto nla_put_failure;
7254 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7255 NL80211_REPLAY_CTR_LEN, replay_ctr);
7257 nla_nest_end(msg, rekey_attr);
7259 if (genlmsg_end(msg, hdr) < 0) {
7264 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7265 nl80211_mlme_mcgrp.id, gfp);
7269 genlmsg_cancel(msg, hdr);
7274 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7275 struct net_device *netdev, const u8 *peer,
7276 u32 num_packets, gfp_t gfp)
7278 struct sk_buff *msg;
7279 struct nlattr *pinfoattr;
7282 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7286 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7292 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7293 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7294 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7296 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7298 goto nla_put_failure;
7300 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7302 nla_nest_end(msg, pinfoattr);
7304 if (genlmsg_end(msg, hdr) < 0) {
7309 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7310 nl80211_mlme_mcgrp.id, gfp);
7314 genlmsg_cancel(msg, hdr);
7318 static int nl80211_netlink_notify(struct notifier_block * nb,
7319 unsigned long state,
7322 struct netlink_notify *notify = _notify;
7323 struct cfg80211_registered_device *rdev;
7324 struct wireless_dev *wdev;
7326 if (state != NETLINK_URELEASE)
7331 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7332 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
7333 cfg80211_mlme_unregister_socket(wdev, notify->pid);
7340 static struct notifier_block nl80211_netlink_notifier = {
7341 .notifier_call = nl80211_netlink_notify,
7344 /* initialisation/exit functions */
7346 int nl80211_init(void)
7350 err = genl_register_family_with_ops(&nl80211_fam,
7351 nl80211_ops, ARRAY_SIZE(nl80211_ops));
7355 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7359 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7363 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7367 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7371 #ifdef CONFIG_NL80211_TESTMODE
7372 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7377 err = netlink_register_notifier(&nl80211_netlink_notifier);
7383 genl_unregister_family(&nl80211_fam);
7387 void nl80211_exit(void)
7389 netlink_unregister_notifier(&nl80211_netlink_notifier);
7390 genl_unregister_family(&nl80211_fam);