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] = { .len = ETH_ALEN },
93 [NL80211_ATTR_PREV_BSSID] = { .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] = { .len = NL80211_HT_CAPABILITY_LEN },
137 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
138 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
139 .len = IEEE80211_MAX_DATA_LEN },
140 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
141 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
143 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
144 .len = IEEE80211_MAX_SSID_LEN },
145 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
146 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
147 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
148 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
149 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
150 [NL80211_ATTR_STA_FLAGS2] = {
151 .len = sizeof(struct nl80211_sta_flag_update),
153 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
154 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
155 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
156 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
157 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
158 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
159 [NL80211_ATTR_PID] = { .type = NLA_U32 },
160 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
161 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
162 .len = WLAN_PMKID_LEN },
163 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
164 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
165 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
166 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
167 .len = IEEE80211_MAX_DATA_LEN },
168 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
169 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
170 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
171 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
172 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
173 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
174 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
175 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
176 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
177 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
178 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
179 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
180 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
181 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
182 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
183 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
184 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
185 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
186 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
187 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
188 .len = IEEE80211_MAX_DATA_LEN },
189 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
190 .len = IEEE80211_MAX_DATA_LEN },
191 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
192 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
193 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
194 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
197 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
198 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
201 /* policy for the key attributes */
202 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
203 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
204 [NL80211_KEY_IDX] = { .type = NLA_U8 },
205 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
206 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
207 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
208 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
209 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
210 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
213 /* policy for the key default flags */
214 static const struct nla_policy
215 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
216 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
217 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
220 /* policy for WoWLAN attributes */
221 static const struct nla_policy
222 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
223 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
224 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
225 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
226 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
227 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
228 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
229 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
230 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
233 /* policy for GTK rekey offload attributes */
234 static const struct nla_policy
235 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
236 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
237 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
238 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
241 static const struct nla_policy
242 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
243 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
244 .len = IEEE80211_MAX_SSID_LEN },
247 /* ifidx get helper */
248 static int nl80211_get_ifidx(struct netlink_callback *cb)
252 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
253 nl80211_fam.attrbuf, nl80211_fam.maxattr,
258 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
261 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
267 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
268 struct netlink_callback *cb,
269 struct cfg80211_registered_device **rdev,
270 struct net_device **dev)
272 int ifidx = cb->args[0];
276 ifidx = nl80211_get_ifidx(cb);
284 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
290 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
292 err = PTR_ERR(*rdev);
302 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
304 cfg80211_unlock_rdev(rdev);
309 static bool is_valid_ie_attr(const struct nlattr *attr)
317 pos = nla_data(attr);
338 /* message building helper */
339 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
342 /* since there is no private header just add the generic one */
343 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
346 static int nl80211_msg_put_channel(struct sk_buff *msg,
347 struct ieee80211_channel *chan)
349 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
352 if (chan->flags & IEEE80211_CHAN_DISABLED)
353 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
354 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
355 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
356 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
357 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
358 if (chan->flags & IEEE80211_CHAN_RADAR)
359 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
361 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
362 DBM_TO_MBM(chan->max_power));
370 /* netlink command implementations */
377 bool def_uni, def_multi;
380 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
382 struct nlattr *tb[NL80211_KEY_MAX + 1];
383 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
388 k->def = !!tb[NL80211_KEY_DEFAULT];
389 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
398 if (tb[NL80211_KEY_IDX])
399 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
401 if (tb[NL80211_KEY_DATA]) {
402 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
403 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
406 if (tb[NL80211_KEY_SEQ]) {
407 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
408 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
411 if (tb[NL80211_KEY_CIPHER])
412 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
414 if (tb[NL80211_KEY_TYPE]) {
415 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
416 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
420 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
421 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
422 int err = nla_parse_nested(kdt,
423 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
424 tb[NL80211_KEY_DEFAULT_TYPES],
425 nl80211_key_default_policy);
429 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
430 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
436 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
438 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
439 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
440 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
443 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
444 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
445 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
448 if (info->attrs[NL80211_ATTR_KEY_IDX])
449 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
451 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
452 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
454 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
455 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
464 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
465 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
466 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
470 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
471 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
472 int err = nla_parse_nested(
473 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
474 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
475 nl80211_key_default_policy);
479 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
480 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
486 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
490 memset(k, 0, sizeof(*k));
494 if (info->attrs[NL80211_ATTR_KEY])
495 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
497 err = nl80211_parse_key_old(info, k);
502 if (k->def && k->defmgmt)
506 if (k->def_uni || !k->def_multi)
512 if (k->idx < 4 || k->idx > 5)
515 if (k->idx < 0 || k->idx > 3)
518 if (k->idx < 0 || k->idx > 5)
526 static struct cfg80211_cached_keys *
527 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
530 struct key_parse parse;
532 struct cfg80211_cached_keys *result;
533 int rem, err, def = 0;
535 result = kzalloc(sizeof(*result), GFP_KERNEL);
537 return ERR_PTR(-ENOMEM);
540 result->defmgmt = -1;
542 nla_for_each_nested(key, keys, rem) {
543 memset(&parse, 0, sizeof(parse));
546 err = nl80211_parse_key_new(key, &parse);
552 if (parse.idx < 0 || parse.idx > 4)
558 result->def = parse.idx;
559 if (!parse.def_uni || !parse.def_multi)
561 } else if (parse.defmgmt)
563 err = cfg80211_validate_key_settings(rdev, &parse.p,
564 parse.idx, false, NULL);
567 result->params[parse.idx].cipher = parse.p.cipher;
568 result->params[parse.idx].key_len = parse.p.key_len;
569 result->params[parse.idx].key = result->data[parse.idx];
570 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
579 static int nl80211_key_allowed(struct wireless_dev *wdev)
581 ASSERT_WDEV_LOCK(wdev);
583 switch (wdev->iftype) {
584 case NL80211_IFTYPE_AP:
585 case NL80211_IFTYPE_AP_VLAN:
586 case NL80211_IFTYPE_P2P_GO:
587 case NL80211_IFTYPE_MESH_POINT:
589 case NL80211_IFTYPE_ADHOC:
590 if (!wdev->current_bss)
593 case NL80211_IFTYPE_STATION:
594 case NL80211_IFTYPE_P2P_CLIENT:
595 if (wdev->sme_state != CFG80211_SME_CONNECTED)
605 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
607 struct nlattr *nl_modes = nla_nest_start(msg, attr);
611 goto nla_put_failure;
616 NLA_PUT_FLAG(msg, i);
621 nla_nest_end(msg, nl_modes);
628 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
631 struct nlattr *nl_combis;
634 nl_combis = nla_nest_start(msg,
635 NL80211_ATTR_INTERFACE_COMBINATIONS);
637 goto nla_put_failure;
639 for (i = 0; i < wiphy->n_iface_combinations; i++) {
640 const struct ieee80211_iface_combination *c;
641 struct nlattr *nl_combi, *nl_limits;
643 c = &wiphy->iface_combinations[i];
645 nl_combi = nla_nest_start(msg, i + 1);
647 goto nla_put_failure;
649 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
651 goto nla_put_failure;
653 for (j = 0; j < c->n_limits; j++) {
654 struct nlattr *nl_limit;
656 nl_limit = nla_nest_start(msg, j + 1);
658 goto nla_put_failure;
659 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
661 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
663 goto nla_put_failure;
664 nla_nest_end(msg, nl_limit);
667 nla_nest_end(msg, nl_limits);
669 if (c->beacon_int_infra_match)
671 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
672 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
673 c->num_different_channels);
674 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
677 nla_nest_end(msg, nl_combi);
680 nla_nest_end(msg, nl_combis);
687 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
688 struct cfg80211_registered_device *dev)
691 struct nlattr *nl_bands, *nl_band;
692 struct nlattr *nl_freqs, *nl_freq;
693 struct nlattr *nl_rates, *nl_rate;
694 struct nlattr *nl_cmds;
695 enum ieee80211_band band;
696 struct ieee80211_channel *chan;
697 struct ieee80211_rate *rate;
699 const struct ieee80211_txrx_stypes *mgmt_stypes =
700 dev->wiphy.mgmt_stypes;
702 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
706 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
707 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
709 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
710 cfg80211_rdev_list_generation);
712 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
713 dev->wiphy.retry_short);
714 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
715 dev->wiphy.retry_long);
716 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
717 dev->wiphy.frag_threshold);
718 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
719 dev->wiphy.rts_threshold);
720 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
721 dev->wiphy.coverage_class);
722 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
723 dev->wiphy.max_scan_ssids);
724 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
725 dev->wiphy.max_sched_scan_ssids);
726 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
727 dev->wiphy.max_scan_ie_len);
728 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
729 dev->wiphy.max_sched_scan_ie_len);
730 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
731 dev->wiphy.max_match_sets);
733 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
734 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
735 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
736 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
737 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
738 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
739 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
740 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
741 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
742 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
743 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
744 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
746 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
747 sizeof(u32) * dev->wiphy.n_cipher_suites,
748 dev->wiphy.cipher_suites);
750 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
751 dev->wiphy.max_num_pmkids);
753 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
754 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
756 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
757 dev->wiphy.available_antennas_tx);
758 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
759 dev->wiphy.available_antennas_rx);
761 if ((dev->wiphy.available_antennas_tx ||
762 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
763 u32 tx_ant = 0, rx_ant = 0;
765 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
767 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
768 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
772 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
773 dev->wiphy.interface_modes))
774 goto nla_put_failure;
776 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
778 goto nla_put_failure;
780 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
781 if (!dev->wiphy.bands[band])
784 nl_band = nla_nest_start(msg, band);
786 goto nla_put_failure;
789 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
790 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
791 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
792 &dev->wiphy.bands[band]->ht_cap.mcs);
793 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
794 dev->wiphy.bands[band]->ht_cap.cap);
795 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
796 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
797 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
798 dev->wiphy.bands[band]->ht_cap.ampdu_density);
801 /* add frequencies */
802 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
804 goto nla_put_failure;
806 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
807 nl_freq = nla_nest_start(msg, i);
809 goto nla_put_failure;
811 chan = &dev->wiphy.bands[band]->channels[i];
813 if (nl80211_msg_put_channel(msg, chan))
814 goto nla_put_failure;
816 nla_nest_end(msg, nl_freq);
819 nla_nest_end(msg, nl_freqs);
822 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
824 goto nla_put_failure;
826 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
827 nl_rate = nla_nest_start(msg, i);
829 goto nla_put_failure;
831 rate = &dev->wiphy.bands[band]->bitrates[i];
832 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
834 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
836 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
838 nla_nest_end(msg, nl_rate);
841 nla_nest_end(msg, nl_rates);
843 nla_nest_end(msg, nl_band);
845 nla_nest_end(msg, nl_bands);
847 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
849 goto nla_put_failure;
854 if (dev->ops->op) { \
856 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
860 CMD(add_virtual_intf, NEW_INTERFACE);
861 CMD(change_virtual_intf, SET_INTERFACE);
862 CMD(add_key, NEW_KEY);
863 CMD(add_beacon, NEW_BEACON);
864 CMD(add_station, NEW_STATION);
865 CMD(add_mpath, NEW_MPATH);
866 CMD(update_mesh_config, SET_MESH_CONFIG);
867 CMD(change_bss, SET_BSS);
868 CMD(auth, AUTHENTICATE);
869 CMD(assoc, ASSOCIATE);
870 CMD(deauth, DEAUTHENTICATE);
871 CMD(disassoc, DISASSOCIATE);
872 CMD(join_ibss, JOIN_IBSS);
873 CMD(join_mesh, JOIN_MESH);
874 CMD(set_pmksa, SET_PMKSA);
875 CMD(del_pmksa, DEL_PMKSA);
876 CMD(flush_pmksa, FLUSH_PMKSA);
877 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
878 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
880 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
881 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
883 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
885 CMD(set_channel, SET_CHANNEL);
886 CMD(set_wds_peer, SET_WDS_PEER);
887 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
888 CMD(tdls_mgmt, TDLS_MGMT);
889 CMD(tdls_oper, TDLS_OPER);
891 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
892 CMD(sched_scan_start, START_SCHED_SCAN);
896 if (dev->ops->connect || dev->ops->auth) {
898 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
901 if (dev->ops->disconnect || dev->ops->deauth) {
903 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
906 nla_nest_end(msg, nl_cmds);
908 if (dev->ops->remain_on_channel)
909 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
910 dev->wiphy.max_remain_on_channel_duration);
912 if (dev->ops->mgmt_tx_cancel_wait)
913 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
917 struct nlattr *nl_ftypes, *nl_ifs;
918 enum nl80211_iftype ift;
920 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
922 goto nla_put_failure;
924 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
925 nl_ftypes = nla_nest_start(msg, ift);
927 goto nla_put_failure;
929 stypes = mgmt_stypes[ift].tx;
932 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
933 (i << 4) | IEEE80211_FTYPE_MGMT);
937 nla_nest_end(msg, nl_ftypes);
940 nla_nest_end(msg, nl_ifs);
942 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
944 goto nla_put_failure;
946 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
947 nl_ftypes = nla_nest_start(msg, ift);
949 goto nla_put_failure;
951 stypes = mgmt_stypes[ift].rx;
954 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
955 (i << 4) | IEEE80211_FTYPE_MGMT);
959 nla_nest_end(msg, nl_ftypes);
961 nla_nest_end(msg, nl_ifs);
964 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
965 struct nlattr *nl_wowlan;
967 nl_wowlan = nla_nest_start(msg,
968 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
970 goto nla_put_failure;
972 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
973 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
974 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
975 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
976 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
977 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
978 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
979 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
980 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
981 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
982 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
983 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
984 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
985 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
986 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
987 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
988 if (dev->wiphy.wowlan.n_patterns) {
989 struct nl80211_wowlan_pattern_support pat = {
990 .max_patterns = dev->wiphy.wowlan.n_patterns,
992 dev->wiphy.wowlan.pattern_min_len,
994 dev->wiphy.wowlan.pattern_max_len,
996 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1000 nla_nest_end(msg, nl_wowlan);
1003 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1004 dev->wiphy.software_iftypes))
1005 goto nla_put_failure;
1007 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1008 goto nla_put_failure;
1010 return genlmsg_end(msg, hdr);
1013 genlmsg_cancel(msg, hdr);
1017 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1020 int start = cb->args[0];
1021 struct cfg80211_registered_device *dev;
1023 mutex_lock(&cfg80211_mutex);
1024 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1025 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1029 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1030 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1036 mutex_unlock(&cfg80211_mutex);
1043 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1045 struct sk_buff *msg;
1046 struct cfg80211_registered_device *dev = info->user_ptr[0];
1048 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1052 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1057 return genlmsg_reply(msg, info);
1060 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1061 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1062 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1063 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1064 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1065 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1068 static int parse_txq_params(struct nlattr *tb[],
1069 struct ieee80211_txq_params *txq_params)
1071 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1072 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1073 !tb[NL80211_TXQ_ATTR_AIFS])
1076 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1077 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1078 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1079 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1080 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1085 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1088 * You can only set the channel explicitly for AP, mesh
1089 * and WDS type interfaces; all others have their channel
1090 * managed via their respective "establish a connection"
1091 * command (connect, join, ...)
1093 * Monitors are special as they are normally slaved to
1094 * whatever else is going on, so they behave as though
1095 * you tried setting the wiphy channel itself.
1098 wdev->iftype == NL80211_IFTYPE_AP ||
1099 wdev->iftype == NL80211_IFTYPE_WDS ||
1100 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1101 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1102 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1105 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1106 struct wireless_dev *wdev,
1107 struct genl_info *info)
1109 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1113 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1116 if (!nl80211_can_set_dev_channel(wdev))
1119 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1120 channel_type = nla_get_u32(info->attrs[
1121 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1122 if (channel_type != NL80211_CHAN_NO_HT &&
1123 channel_type != NL80211_CHAN_HT20 &&
1124 channel_type != NL80211_CHAN_HT40PLUS &&
1125 channel_type != NL80211_CHAN_HT40MINUS)
1129 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1131 mutex_lock(&rdev->devlist_mtx);
1134 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1137 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1139 mutex_unlock(&rdev->devlist_mtx);
1144 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1147 struct net_device *netdev = info->user_ptr[1];
1149 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1152 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1155 struct net_device *dev = info->user_ptr[1];
1156 struct wireless_dev *wdev = dev->ieee80211_ptr;
1159 if (!info->attrs[NL80211_ATTR_MAC])
1162 if (netif_running(dev))
1165 if (!rdev->ops->set_wds_peer)
1168 if (wdev->iftype != NL80211_IFTYPE_WDS)
1171 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1172 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1176 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1178 struct cfg80211_registered_device *rdev;
1179 struct net_device *netdev = NULL;
1180 struct wireless_dev *wdev;
1181 int result = 0, rem_txq_params = 0;
1182 struct nlattr *nl_txq_params;
1184 u8 retry_short = 0, retry_long = 0;
1185 u32 frag_threshold = 0, rts_threshold = 0;
1186 u8 coverage_class = 0;
1189 * Try to find the wiphy and netdev. Normally this
1190 * function shouldn't need the netdev, but this is
1191 * done for backward compatibility -- previously
1192 * setting the channel was done per wiphy, but now
1193 * it is per netdev. Previous userland like hostapd
1194 * also passed a netdev to set_wiphy, so that it is
1195 * possible to let that go to the right netdev!
1197 mutex_lock(&cfg80211_mutex);
1199 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1200 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1202 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1203 if (netdev && netdev->ieee80211_ptr) {
1204 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1205 mutex_lock(&rdev->mtx);
1211 rdev = __cfg80211_rdev_from_info(info);
1213 mutex_unlock(&cfg80211_mutex);
1214 return PTR_ERR(rdev);
1220 mutex_lock(&rdev->mtx);
1221 } else if (netif_running(netdev) &&
1222 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1223 wdev = netdev->ieee80211_ptr;
1228 * end workaround code, by now the rdev is available
1229 * and locked, and wdev may or may not be NULL.
1232 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1233 result = cfg80211_dev_rename(
1234 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1236 mutex_unlock(&cfg80211_mutex);
1241 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1242 struct ieee80211_txq_params txq_params;
1243 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1245 if (!rdev->ops->set_txq_params) {
1246 result = -EOPNOTSUPP;
1255 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1256 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1261 if (!netif_running(netdev)) {
1266 nla_for_each_nested(nl_txq_params,
1267 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1269 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1270 nla_data(nl_txq_params),
1271 nla_len(nl_txq_params),
1273 result = parse_txq_params(tb, &txq_params);
1277 result = rdev->ops->set_txq_params(&rdev->wiphy,
1285 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1286 result = __nl80211_set_channel(rdev, wdev, info);
1291 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1292 enum nl80211_tx_power_setting type;
1295 if (!rdev->ops->set_tx_power) {
1296 result = -EOPNOTSUPP;
1300 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1301 type = nla_get_u32(info->attrs[idx]);
1303 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1304 (type != NL80211_TX_POWER_AUTOMATIC)) {
1309 if (type != NL80211_TX_POWER_AUTOMATIC) {
1310 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1311 mbm = nla_get_u32(info->attrs[idx]);
1314 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1319 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1320 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1322 if ((!rdev->wiphy.available_antennas_tx &&
1323 !rdev->wiphy.available_antennas_rx) ||
1324 !rdev->ops->set_antenna) {
1325 result = -EOPNOTSUPP;
1329 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1330 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1332 /* reject antenna configurations which don't match the
1333 * available antenna masks, except for the "all" mask */
1334 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1335 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1340 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1341 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1343 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1350 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1351 retry_short = nla_get_u8(
1352 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1353 if (retry_short == 0) {
1357 changed |= WIPHY_PARAM_RETRY_SHORT;
1360 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1361 retry_long = nla_get_u8(
1362 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1363 if (retry_long == 0) {
1367 changed |= WIPHY_PARAM_RETRY_LONG;
1370 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1371 frag_threshold = nla_get_u32(
1372 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1373 if (frag_threshold < 256) {
1377 if (frag_threshold != (u32) -1) {
1379 * Fragments (apart from the last one) are required to
1380 * have even length. Make the fragmentation code
1381 * simpler by stripping LSB should someone try to use
1382 * odd threshold value.
1384 frag_threshold &= ~0x1;
1386 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1389 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1390 rts_threshold = nla_get_u32(
1391 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1392 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1395 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1396 coverage_class = nla_get_u8(
1397 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1398 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1402 u8 old_retry_short, old_retry_long;
1403 u32 old_frag_threshold, old_rts_threshold;
1404 u8 old_coverage_class;
1406 if (!rdev->ops->set_wiphy_params) {
1407 result = -EOPNOTSUPP;
1411 old_retry_short = rdev->wiphy.retry_short;
1412 old_retry_long = rdev->wiphy.retry_long;
1413 old_frag_threshold = rdev->wiphy.frag_threshold;
1414 old_rts_threshold = rdev->wiphy.rts_threshold;
1415 old_coverage_class = rdev->wiphy.coverage_class;
1417 if (changed & WIPHY_PARAM_RETRY_SHORT)
1418 rdev->wiphy.retry_short = retry_short;
1419 if (changed & WIPHY_PARAM_RETRY_LONG)
1420 rdev->wiphy.retry_long = retry_long;
1421 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1422 rdev->wiphy.frag_threshold = frag_threshold;
1423 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1424 rdev->wiphy.rts_threshold = rts_threshold;
1425 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1426 rdev->wiphy.coverage_class = coverage_class;
1428 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1430 rdev->wiphy.retry_short = old_retry_short;
1431 rdev->wiphy.retry_long = old_retry_long;
1432 rdev->wiphy.frag_threshold = old_frag_threshold;
1433 rdev->wiphy.rts_threshold = old_rts_threshold;
1434 rdev->wiphy.coverage_class = old_coverage_class;
1439 mutex_unlock(&rdev->mtx);
1446 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1447 struct cfg80211_registered_device *rdev,
1448 struct net_device *dev)
1452 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1456 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1457 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1458 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1459 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1461 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1462 rdev->devlist_generation ^
1463 (cfg80211_rdev_list_generation << 2));
1465 return genlmsg_end(msg, hdr);
1468 genlmsg_cancel(msg, hdr);
1472 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1476 int wp_start = cb->args[0];
1477 int if_start = cb->args[1];
1478 struct cfg80211_registered_device *rdev;
1479 struct wireless_dev *wdev;
1481 mutex_lock(&cfg80211_mutex);
1482 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1483 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1485 if (wp_idx < wp_start) {
1491 mutex_lock(&rdev->devlist_mtx);
1492 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1493 if (if_idx < if_start) {
1497 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1498 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1499 rdev, wdev->netdev) < 0) {
1500 mutex_unlock(&rdev->devlist_mtx);
1505 mutex_unlock(&rdev->devlist_mtx);
1510 mutex_unlock(&cfg80211_mutex);
1512 cb->args[0] = wp_idx;
1513 cb->args[1] = if_idx;
1518 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1520 struct sk_buff *msg;
1521 struct cfg80211_registered_device *dev = info->user_ptr[0];
1522 struct net_device *netdev = info->user_ptr[1];
1524 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1528 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1534 return genlmsg_reply(msg, info);
1537 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1538 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1539 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1540 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1541 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1542 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1545 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1547 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1555 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1556 nla, mntr_flags_policy))
1559 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1561 *mntrflags |= (1<<flag);
1566 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1567 struct net_device *netdev, u8 use_4addr,
1568 enum nl80211_iftype iftype)
1571 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1577 case NL80211_IFTYPE_AP_VLAN:
1578 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1581 case NL80211_IFTYPE_STATION:
1582 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1592 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1594 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1595 struct vif_params params;
1597 enum nl80211_iftype otype, ntype;
1598 struct net_device *dev = info->user_ptr[1];
1599 u32 _flags, *flags = NULL;
1600 bool change = false;
1602 memset(¶ms, 0, sizeof(params));
1604 otype = ntype = dev->ieee80211_ptr->iftype;
1606 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1607 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1610 if (ntype > NL80211_IFTYPE_MAX)
1614 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1615 struct wireless_dev *wdev = dev->ieee80211_ptr;
1617 if (ntype != NL80211_IFTYPE_MESH_POINT)
1619 if (netif_running(dev))
1623 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1624 IEEE80211_MAX_MESH_ID_LEN);
1625 wdev->mesh_id_up_len =
1626 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1627 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1628 wdev->mesh_id_up_len);
1632 if (info->attrs[NL80211_ATTR_4ADDR]) {
1633 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1635 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1639 params.use_4addr = -1;
1642 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1643 if (ntype != NL80211_IFTYPE_MONITOR)
1645 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1655 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1659 if (!err && params.use_4addr != -1)
1660 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1665 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1668 struct vif_params params;
1669 struct net_device *dev;
1671 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1674 memset(¶ms, 0, sizeof(params));
1676 if (!info->attrs[NL80211_ATTR_IFNAME])
1679 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1680 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1681 if (type > NL80211_IFTYPE_MAX)
1685 if (!rdev->ops->add_virtual_intf ||
1686 !(rdev->wiphy.interface_modes & (1 << type)))
1689 if (info->attrs[NL80211_ATTR_4ADDR]) {
1690 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1691 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1696 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1697 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1699 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1700 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1701 type, err ? NULL : &flags, ¶ms);
1703 return PTR_ERR(dev);
1705 if (type == NL80211_IFTYPE_MESH_POINT &&
1706 info->attrs[NL80211_ATTR_MESH_ID]) {
1707 struct wireless_dev *wdev = dev->ieee80211_ptr;
1710 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1711 IEEE80211_MAX_MESH_ID_LEN);
1712 wdev->mesh_id_up_len =
1713 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1714 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1715 wdev->mesh_id_up_len);
1722 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1725 struct net_device *dev = info->user_ptr[1];
1727 if (!rdev->ops->del_virtual_intf)
1730 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1733 struct get_key_cookie {
1734 struct sk_buff *msg;
1739 static void get_key_callback(void *c, struct key_params *params)
1742 struct get_key_cookie *cookie = c;
1745 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1746 params->key_len, params->key);
1749 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1750 params->seq_len, params->seq);
1753 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1756 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1758 goto nla_put_failure;
1761 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1762 params->key_len, params->key);
1765 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1766 params->seq_len, params->seq);
1769 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1772 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1774 nla_nest_end(cookie->msg, key);
1781 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1783 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1785 struct net_device *dev = info->user_ptr[1];
1787 const u8 *mac_addr = NULL;
1789 struct get_key_cookie cookie = {
1793 struct sk_buff *msg;
1795 if (info->attrs[NL80211_ATTR_KEY_IDX])
1796 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1801 if (info->attrs[NL80211_ATTR_MAC])
1802 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1804 pairwise = !!mac_addr;
1805 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1806 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1807 if (kt >= NUM_NL80211_KEYTYPES)
1809 if (kt != NL80211_KEYTYPE_GROUP &&
1810 kt != NL80211_KEYTYPE_PAIRWISE)
1812 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1815 if (!rdev->ops->get_key)
1818 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1821 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1825 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1826 NL80211_CMD_NEW_KEY);
1828 return PTR_ERR(hdr);
1831 cookie.idx = key_idx;
1833 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1834 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1836 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1838 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1839 mac_addr, &cookie, get_key_callback);
1845 goto nla_put_failure;
1847 genlmsg_end(msg, hdr);
1848 return genlmsg_reply(msg, info);
1857 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1860 struct key_parse key;
1862 struct net_device *dev = info->user_ptr[1];
1864 err = nl80211_parse_key(info, &key);
1871 /* only support setting default key */
1872 if (!key.def && !key.defmgmt)
1875 wdev_lock(dev->ieee80211_ptr);
1878 if (!rdev->ops->set_default_key) {
1883 err = nl80211_key_allowed(dev->ieee80211_ptr);
1887 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1888 key.def_uni, key.def_multi);
1893 #ifdef CONFIG_CFG80211_WEXT
1894 dev->ieee80211_ptr->wext.default_key = key.idx;
1897 if (key.def_uni || !key.def_multi) {
1902 if (!rdev->ops->set_default_mgmt_key) {
1907 err = nl80211_key_allowed(dev->ieee80211_ptr);
1911 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1916 #ifdef CONFIG_CFG80211_WEXT
1917 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1922 wdev_unlock(dev->ieee80211_ptr);
1927 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1931 struct net_device *dev = info->user_ptr[1];
1932 struct key_parse key;
1933 const u8 *mac_addr = NULL;
1935 err = nl80211_parse_key(info, &key);
1942 if (info->attrs[NL80211_ATTR_MAC])
1943 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1945 if (key.type == -1) {
1947 key.type = NL80211_KEYTYPE_PAIRWISE;
1949 key.type = NL80211_KEYTYPE_GROUP;
1953 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1954 key.type != NL80211_KEYTYPE_GROUP)
1957 if (!rdev->ops->add_key)
1960 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1961 key.type == NL80211_KEYTYPE_PAIRWISE,
1965 wdev_lock(dev->ieee80211_ptr);
1966 err = nl80211_key_allowed(dev->ieee80211_ptr);
1968 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1969 key.type == NL80211_KEYTYPE_PAIRWISE,
1971 wdev_unlock(dev->ieee80211_ptr);
1976 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1980 struct net_device *dev = info->user_ptr[1];
1981 u8 *mac_addr = NULL;
1982 struct key_parse key;
1984 err = nl80211_parse_key(info, &key);
1988 if (info->attrs[NL80211_ATTR_MAC])
1989 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1991 if (key.type == -1) {
1993 key.type = NL80211_KEYTYPE_PAIRWISE;
1995 key.type = NL80211_KEYTYPE_GROUP;
1999 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2000 key.type != NL80211_KEYTYPE_GROUP)
2003 if (!rdev->ops->del_key)
2006 wdev_lock(dev->ieee80211_ptr);
2007 err = nl80211_key_allowed(dev->ieee80211_ptr);
2009 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
2010 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2014 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2015 key.type == NL80211_KEYTYPE_PAIRWISE,
2018 #ifdef CONFIG_CFG80211_WEXT
2020 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2021 dev->ieee80211_ptr->wext.default_key = -1;
2022 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2023 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2026 wdev_unlock(dev->ieee80211_ptr);
2031 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2033 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2034 struct beacon_parameters *info);
2035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2036 struct net_device *dev = info->user_ptr[1];
2037 struct wireless_dev *wdev = dev->ieee80211_ptr;
2038 struct beacon_parameters params;
2039 int haveinfo = 0, err;
2041 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2042 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2043 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2044 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2047 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2048 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2051 memset(¶ms, 0, sizeof(params));
2053 switch (info->genlhdr->cmd) {
2054 case NL80211_CMD_NEW_BEACON:
2055 /* these are required for NEW_BEACON */
2056 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2057 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2058 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2062 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2063 params.dtim_period =
2064 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2066 err = cfg80211_validate_beacon_int(rdev, params.interval);
2071 * In theory, some of these attributes could be required for
2072 * NEW_BEACON, but since they were not used when the command was
2073 * originally added, keep them optional for old user space
2074 * programs to work with drivers that do not need the additional
2077 if (info->attrs[NL80211_ATTR_SSID]) {
2078 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2080 nla_len(info->attrs[NL80211_ATTR_SSID]);
2081 if (params.ssid_len == 0 ||
2082 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2086 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2087 params.hidden_ssid = nla_get_u32(
2088 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2089 if (params.hidden_ssid !=
2090 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2091 params.hidden_ssid !=
2092 NL80211_HIDDEN_SSID_ZERO_LEN &&
2093 params.hidden_ssid !=
2094 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2098 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2100 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2101 params.auth_type = nla_get_u32(
2102 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2103 if (!nl80211_valid_auth_type(params.auth_type))
2106 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2108 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2109 NL80211_MAX_NR_CIPHER_SUITES);
2113 call = rdev->ops->add_beacon;
2115 case NL80211_CMD_SET_BEACON:
2116 call = rdev->ops->set_beacon;
2126 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2127 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2129 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2133 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2134 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2136 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2143 if (info->attrs[NL80211_ATTR_IE]) {
2144 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2145 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2148 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2149 params.proberesp_ies =
2150 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2151 params.proberesp_ies_len =
2152 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2155 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2156 params.assocresp_ies =
2157 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2158 params.assocresp_ies_len =
2159 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2162 err = call(&rdev->wiphy, dev, ¶ms);
2163 if (!err && params.interval)
2164 wdev->beacon_interval = params.interval;
2168 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2171 struct net_device *dev = info->user_ptr[1];
2172 struct wireless_dev *wdev = dev->ieee80211_ptr;
2175 if (!rdev->ops->del_beacon)
2178 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2179 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2182 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2184 wdev->beacon_interval = 0;
2188 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2189 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2190 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2191 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2192 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2193 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2196 static int parse_station_flags(struct genl_info *info,
2197 struct station_parameters *params)
2199 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2204 * Try parsing the new attribute first so userspace
2205 * can specify both for older kernels.
2207 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2209 struct nl80211_sta_flag_update *sta_flags;
2211 sta_flags = nla_data(nla);
2212 params->sta_flags_mask = sta_flags->mask;
2213 params->sta_flags_set = sta_flags->set;
2214 if ((params->sta_flags_mask |
2215 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2220 /* if present, parse the old attribute */
2222 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2226 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2227 nla, sta_flags_policy))
2230 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2231 params->sta_flags_mask &= ~1;
2233 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2235 params->sta_flags_set |= (1<<flag);
2240 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2243 struct nlattr *rate;
2246 rate = nla_nest_start(msg, attr);
2248 goto nla_put_failure;
2250 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2251 bitrate = cfg80211_calculate_bitrate(info);
2253 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2255 if (info->flags & RATE_INFO_FLAGS_MCS)
2256 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2257 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2258 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2259 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2260 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2262 nla_nest_end(msg, rate);
2269 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2270 int flags, struct net_device *dev,
2271 const u8 *mac_addr, struct station_info *sinfo)
2274 struct nlattr *sinfoattr, *bss_param;
2276 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2280 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2281 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2283 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2285 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2287 goto nla_put_failure;
2288 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2289 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2290 sinfo->connected_time);
2291 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2292 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2293 sinfo->inactive_time);
2294 if (sinfo->filled & STATION_INFO_RX_BYTES)
2295 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2297 if (sinfo->filled & STATION_INFO_TX_BYTES)
2298 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2300 if (sinfo->filled & STATION_INFO_LLID)
2301 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2303 if (sinfo->filled & STATION_INFO_PLID)
2304 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2306 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2307 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2308 sinfo->plink_state);
2309 if (sinfo->filled & STATION_INFO_SIGNAL)
2310 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2312 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2313 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2315 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2316 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2317 NL80211_STA_INFO_TX_BITRATE))
2318 goto nla_put_failure;
2320 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2321 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2322 NL80211_STA_INFO_RX_BITRATE))
2323 goto nla_put_failure;
2325 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2326 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2328 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2329 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2331 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2332 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2334 if (sinfo->filled & STATION_INFO_TX_FAILED)
2335 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2337 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2338 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2340 goto nla_put_failure;
2342 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2343 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2344 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2345 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2346 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2348 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2349 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2350 sinfo->bss_param.dtim_period);
2351 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2352 sinfo->bss_param.beacon_interval);
2354 nla_nest_end(msg, bss_param);
2356 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2357 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2358 sizeof(struct nl80211_sta_flag_update),
2360 nla_nest_end(msg, sinfoattr);
2362 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
2363 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2364 sinfo->assoc_req_ies);
2366 return genlmsg_end(msg, hdr);
2369 genlmsg_cancel(msg, hdr);
2373 static int nl80211_dump_station(struct sk_buff *skb,
2374 struct netlink_callback *cb)
2376 struct station_info sinfo;
2377 struct cfg80211_registered_device *dev;
2378 struct net_device *netdev;
2379 u8 mac_addr[ETH_ALEN];
2380 int sta_idx = cb->args[1];
2383 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2387 if (!dev->ops->dump_station) {
2393 memset(&sinfo, 0, sizeof(sinfo));
2394 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2401 if (nl80211_send_station(skb,
2402 NETLINK_CB(cb->skb).pid,
2403 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2413 cb->args[1] = sta_idx;
2416 nl80211_finish_netdev_dump(dev);
2421 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2423 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2424 struct net_device *dev = info->user_ptr[1];
2425 struct station_info sinfo;
2426 struct sk_buff *msg;
2427 u8 *mac_addr = NULL;
2430 memset(&sinfo, 0, sizeof(sinfo));
2432 if (!info->attrs[NL80211_ATTR_MAC])
2435 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2437 if (!rdev->ops->get_station)
2440 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2444 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2448 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2449 dev, mac_addr, &sinfo) < 0) {
2454 return genlmsg_reply(msg, info);
2458 * Get vlan interface making sure it is running and on the right wiphy.
2460 static int get_vlan(struct genl_info *info,
2461 struct cfg80211_registered_device *rdev,
2462 struct net_device **vlan)
2464 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2468 *vlan = dev_get_by_index(genl_info_net(info),
2469 nla_get_u32(vlanattr));
2472 if (!(*vlan)->ieee80211_ptr)
2474 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2476 if (!netif_running(*vlan))
2482 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2486 struct net_device *dev = info->user_ptr[1];
2487 struct station_parameters params;
2488 u8 *mac_addr = NULL;
2490 memset(¶ms, 0, sizeof(params));
2492 params.listen_interval = -1;
2493 params.plink_state = -1;
2495 if (info->attrs[NL80211_ATTR_STA_AID])
2498 if (!info->attrs[NL80211_ATTR_MAC])
2501 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2503 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2504 params.supported_rates =
2505 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2506 params.supported_rates_len =
2507 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2510 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2511 params.listen_interval =
2512 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2514 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2516 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2518 if (parse_station_flags(info, ¶ms))
2521 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2522 params.plink_action =
2523 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2525 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2526 params.plink_state =
2527 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2529 err = get_vlan(info, rdev, ¶ms.vlan);
2533 /* validate settings */
2536 switch (dev->ieee80211_ptr->iftype) {
2537 case NL80211_IFTYPE_AP:
2538 case NL80211_IFTYPE_AP_VLAN:
2539 case NL80211_IFTYPE_P2P_GO:
2540 /* disallow mesh-specific things */
2541 if (params.plink_action)
2544 case NL80211_IFTYPE_P2P_CLIENT:
2545 case NL80211_IFTYPE_STATION:
2546 /* disallow things sta doesn't support */
2547 if (params.plink_action)
2551 if (params.supported_rates &&
2552 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2556 if (params.listen_interval >= 0)
2558 if (params.sta_flags_mask &
2559 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2560 BIT(NL80211_STA_FLAG_TDLS_PEER)))
2562 /* can't change the TDLS bit */
2563 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2564 (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2567 case NL80211_IFTYPE_MESH_POINT:
2568 /* disallow things mesh doesn't support */
2573 if (params.listen_interval >= 0)
2575 if (params.sta_flags_mask &
2576 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2577 BIT(NL80211_STA_FLAG_MFP) |
2578 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2588 if (!rdev->ops->change_station) {
2593 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2597 dev_put(params.vlan);
2602 static struct nla_policy
2603 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2604 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2605 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2608 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2610 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2612 struct net_device *dev = info->user_ptr[1];
2613 struct station_parameters params;
2614 u8 *mac_addr = NULL;
2616 memset(¶ms, 0, sizeof(params));
2618 if (!info->attrs[NL80211_ATTR_MAC])
2621 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2624 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2627 if (!info->attrs[NL80211_ATTR_STA_AID])
2630 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2631 params.supported_rates =
2632 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2633 params.supported_rates_len =
2634 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2635 params.listen_interval =
2636 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2638 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2639 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2642 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2644 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2646 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2647 params.plink_action =
2648 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2650 if (parse_station_flags(info, ¶ms))
2653 /* HT requires QoS, but if we don't have that just ignore HT/VHT
2654 * as userspace might just pass through the capabilities from the IEs
2655 * directly, rather than enforcing this restriction and returning an
2656 * error in this case.
2658 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
2659 params.ht_capa = NULL;
2661 /* parse WME attributes if sta is WME capable */
2662 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2663 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2664 info->attrs[NL80211_ATTR_STA_WME]) {
2665 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2668 nla = info->attrs[NL80211_ATTR_STA_WME];
2669 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2670 nl80211_sta_wme_policy);
2674 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2675 params.uapsd_queues =
2676 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2677 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2680 if (tb[NL80211_STA_WME_MAX_SP])
2682 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2684 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2687 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2690 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2691 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2692 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2693 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
2694 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
2698 * Only managed stations can add TDLS peers, and only when the
2699 * wiphy supports external TDLS setup.
2701 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION &&
2702 !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2703 (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2704 (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
2707 err = get_vlan(info, rdev, ¶ms.vlan);
2711 /* validate settings */
2714 if (!rdev->ops->add_station) {
2719 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2723 dev_put(params.vlan);
2727 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2729 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2730 struct net_device *dev = info->user_ptr[1];
2731 u8 *mac_addr = NULL;
2733 if (info->attrs[NL80211_ATTR_MAC])
2734 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2736 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2737 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2738 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2739 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2742 if (!rdev->ops->del_station)
2745 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2748 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2749 int flags, struct net_device *dev,
2750 u8 *dst, u8 *next_hop,
2751 struct mpath_info *pinfo)
2754 struct nlattr *pinfoattr;
2756 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2760 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2761 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2762 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2764 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2766 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2768 goto nla_put_failure;
2769 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2770 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2772 if (pinfo->filled & MPATH_INFO_SN)
2773 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2775 if (pinfo->filled & MPATH_INFO_METRIC)
2776 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2778 if (pinfo->filled & MPATH_INFO_EXPTIME)
2779 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2781 if (pinfo->filled & MPATH_INFO_FLAGS)
2782 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2784 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2785 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2786 pinfo->discovery_timeout);
2787 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2788 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2789 pinfo->discovery_retries);
2791 nla_nest_end(msg, pinfoattr);
2793 return genlmsg_end(msg, hdr);
2796 genlmsg_cancel(msg, hdr);
2800 static int nl80211_dump_mpath(struct sk_buff *skb,
2801 struct netlink_callback *cb)
2803 struct mpath_info pinfo;
2804 struct cfg80211_registered_device *dev;
2805 struct net_device *netdev;
2807 u8 next_hop[ETH_ALEN];
2808 int path_idx = cb->args[1];
2811 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2815 if (!dev->ops->dump_mpath) {
2820 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2826 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2827 dst, next_hop, &pinfo);
2833 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2834 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2835 netdev, dst, next_hop,
2844 cb->args[1] = path_idx;
2847 nl80211_finish_netdev_dump(dev);
2851 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2855 struct net_device *dev = info->user_ptr[1];
2856 struct mpath_info pinfo;
2857 struct sk_buff *msg;
2859 u8 next_hop[ETH_ALEN];
2861 memset(&pinfo, 0, sizeof(pinfo));
2863 if (!info->attrs[NL80211_ATTR_MAC])
2866 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2868 if (!rdev->ops->get_mpath)
2871 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2874 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2878 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2882 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2883 dev, dst, next_hop, &pinfo) < 0) {
2888 return genlmsg_reply(msg, info);
2891 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2894 struct net_device *dev = info->user_ptr[1];
2896 u8 *next_hop = NULL;
2898 if (!info->attrs[NL80211_ATTR_MAC])
2901 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2904 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2905 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2907 if (!rdev->ops->change_mpath)
2910 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2913 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2916 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2919 struct net_device *dev = info->user_ptr[1];
2921 u8 *next_hop = NULL;
2923 if (!info->attrs[NL80211_ATTR_MAC])
2926 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2929 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2930 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2932 if (!rdev->ops->add_mpath)
2935 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2938 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2941 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2943 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2944 struct net_device *dev = info->user_ptr[1];
2947 if (info->attrs[NL80211_ATTR_MAC])
2948 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2950 if (!rdev->ops->del_mpath)
2953 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2956 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2959 struct net_device *dev = info->user_ptr[1];
2960 struct bss_parameters params;
2962 memset(¶ms, 0, sizeof(params));
2963 /* default to not changing parameters */
2964 params.use_cts_prot = -1;
2965 params.use_short_preamble = -1;
2966 params.use_short_slot_time = -1;
2967 params.ap_isolate = -1;
2968 params.ht_opmode = -1;
2970 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2971 params.use_cts_prot =
2972 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2973 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2974 params.use_short_preamble =
2975 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2976 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2977 params.use_short_slot_time =
2978 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2979 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2980 params.basic_rates =
2981 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2982 params.basic_rates_len =
2983 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2985 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2986 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2987 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2989 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
2991 if (!rdev->ops->change_bss)
2994 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2995 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2998 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3001 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3002 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3003 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3004 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3005 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3006 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3007 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3010 static int parse_reg_rule(struct nlattr *tb[],
3011 struct ieee80211_reg_rule *reg_rule)
3013 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3014 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3016 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3018 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3020 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3022 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3024 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3027 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3029 freq_range->start_freq_khz =
3030 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3031 freq_range->end_freq_khz =
3032 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3033 freq_range->max_bandwidth_khz =
3034 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3036 power_rule->max_eirp =
3037 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3039 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3040 power_rule->max_antenna_gain =
3041 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3046 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3052 * You should only get this when cfg80211 hasn't yet initialized
3053 * completely when built-in to the kernel right between the time
3054 * window between nl80211_init() and regulatory_init(), if that is
3057 mutex_lock(&cfg80211_mutex);
3058 if (unlikely(!cfg80211_regdomain)) {
3059 mutex_unlock(&cfg80211_mutex);
3060 return -EINPROGRESS;
3062 mutex_unlock(&cfg80211_mutex);
3064 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3067 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3069 r = regulatory_hint_user(data);
3074 static int nl80211_get_mesh_config(struct sk_buff *skb,
3075 struct genl_info *info)
3077 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3078 struct net_device *dev = info->user_ptr[1];
3079 struct wireless_dev *wdev = dev->ieee80211_ptr;
3080 struct mesh_config cur_params;
3083 struct nlattr *pinfoattr;
3084 struct sk_buff *msg;
3086 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3089 if (!rdev->ops->get_mesh_config)
3093 /* If not connected, get default parameters */
3094 if (!wdev->mesh_id_len)
3095 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3097 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3104 /* Draw up a netlink message to send back */
3105 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3108 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3109 NL80211_CMD_GET_MESH_CONFIG);
3112 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3114 goto nla_put_failure;
3115 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3116 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3117 cur_params.dot11MeshRetryTimeout);
3118 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3119 cur_params.dot11MeshConfirmTimeout);
3120 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3121 cur_params.dot11MeshHoldingTimeout);
3122 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3123 cur_params.dot11MeshMaxPeerLinks);
3124 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3125 cur_params.dot11MeshMaxRetries);
3126 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3127 cur_params.dot11MeshTTL);
3128 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3129 cur_params.element_ttl);
3130 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3131 cur_params.auto_open_plinks);
3132 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3133 cur_params.dot11MeshHWMPmaxPREQretries);
3134 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3135 cur_params.path_refresh_time);
3136 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3137 cur_params.min_discovery_timeout);
3138 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3139 cur_params.dot11MeshHWMPactivePathTimeout);
3140 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3141 cur_params.dot11MeshHWMPpreqMinInterval);
3142 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3143 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
3144 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3145 cur_params.dot11MeshHWMPRootMode);
3146 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3147 cur_params.dot11MeshHWMPRannInterval);
3148 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3149 cur_params.dot11MeshGateAnnouncementProtocol);
3150 nla_nest_end(msg, pinfoattr);
3151 genlmsg_end(msg, hdr);
3152 return genlmsg_reply(msg, info);
3155 genlmsg_cancel(msg, hdr);
3161 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3162 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3163 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3164 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3165 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3166 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3167 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3168 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3169 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3171 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3172 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3173 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3174 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3175 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3176 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3177 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3178 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3179 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3182 static const struct nla_policy
3183 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3184 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3185 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3186 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3187 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3188 .len = IEEE80211_MAX_DATA_LEN },
3189 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3192 static int nl80211_parse_mesh_config(struct genl_info *info,
3193 struct mesh_config *cfg,
3196 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3199 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3201 if (table[attr_num]) {\
3202 cfg->param = nla_fn(table[attr_num]); \
3203 mask |= (1 << (attr_num - 1)); \
3208 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3210 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3211 info->attrs[NL80211_ATTR_MESH_CONFIG],
3212 nl80211_meshconf_params_policy))
3215 /* This makes sure that there aren't more than 32 mesh config
3216 * parameters (otherwise our bitfield scheme would not work.) */
3217 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3219 /* Fill in the params struct */
3220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3221 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3222 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3223 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3225 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3227 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3229 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3230 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3231 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3233 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3234 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3235 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3236 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3237 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3239 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3240 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3242 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3244 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3245 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3247 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3248 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3250 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3251 dot11MeshHWMPnetDiameterTraversalTime,
3252 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3254 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3255 dot11MeshHWMPRootMode, mask,
3256 NL80211_MESHCONF_HWMP_ROOTMODE,
3258 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3259 dot11MeshHWMPRannInterval, mask,
3260 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3262 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3263 dot11MeshGateAnnouncementProtocol, mask,
3264 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3271 #undef FILL_IN_MESH_PARAM_IF_SET
3274 static int nl80211_parse_mesh_setup(struct genl_info *info,
3275 struct mesh_setup *setup)
3277 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3279 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3281 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3282 info->attrs[NL80211_ATTR_MESH_SETUP],
3283 nl80211_mesh_setup_params_policy))
3286 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3287 setup->path_sel_proto =
3288 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3289 IEEE80211_PATH_PROTOCOL_VENDOR :
3290 IEEE80211_PATH_PROTOCOL_HWMP;
3292 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3293 setup->path_metric =
3294 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3295 IEEE80211_PATH_METRIC_VENDOR :
3296 IEEE80211_PATH_METRIC_AIRTIME;
3299 if (tb[NL80211_MESH_SETUP_IE]) {
3300 struct nlattr *ieattr =
3301 tb[NL80211_MESH_SETUP_IE];
3302 if (!is_valid_ie_attr(ieattr))
3304 setup->ie = nla_data(ieattr);
3305 setup->ie_len = nla_len(ieattr);
3307 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3308 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3313 static int nl80211_update_mesh_config(struct sk_buff *skb,
3314 struct genl_info *info)
3316 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3317 struct net_device *dev = info->user_ptr[1];
3318 struct wireless_dev *wdev = dev->ieee80211_ptr;
3319 struct mesh_config cfg;
3323 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3326 if (!rdev->ops->update_mesh_config)
3329 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3334 if (!wdev->mesh_id_len)
3338 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3346 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3348 struct sk_buff *msg;
3350 struct nlattr *nl_reg_rules;
3354 mutex_lock(&cfg80211_mutex);
3356 if (!cfg80211_regdomain)
3359 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3365 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3366 NL80211_CMD_GET_REG);
3370 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3371 cfg80211_regdomain->alpha2);
3373 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3375 goto nla_put_failure;
3377 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3378 struct nlattr *nl_reg_rule;
3379 const struct ieee80211_reg_rule *reg_rule;
3380 const struct ieee80211_freq_range *freq_range;
3381 const struct ieee80211_power_rule *power_rule;
3383 reg_rule = &cfg80211_regdomain->reg_rules[i];
3384 freq_range = ®_rule->freq_range;
3385 power_rule = ®_rule->power_rule;
3387 nl_reg_rule = nla_nest_start(msg, i);
3389 goto nla_put_failure;
3391 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3393 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3394 freq_range->start_freq_khz);
3395 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3396 freq_range->end_freq_khz);
3397 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3398 freq_range->max_bandwidth_khz);
3399 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3400 power_rule->max_antenna_gain);
3401 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3402 power_rule->max_eirp);
3404 nla_nest_end(msg, nl_reg_rule);
3407 nla_nest_end(msg, nl_reg_rules);
3409 genlmsg_end(msg, hdr);
3410 err = genlmsg_reply(msg, info);
3414 genlmsg_cancel(msg, hdr);
3419 mutex_unlock(&cfg80211_mutex);
3423 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3425 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3426 struct nlattr *nl_reg_rule;
3427 char *alpha2 = NULL;
3428 int rem_reg_rules = 0, r = 0;
3429 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3430 struct ieee80211_regdomain *rd = NULL;
3432 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3435 if (!info->attrs[NL80211_ATTR_REG_RULES])
3438 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3440 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3443 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3447 mutex_lock(&cfg80211_mutex);
3449 if (!reg_is_valid_request(alpha2)) {
3454 size_of_regd = sizeof(struct ieee80211_regdomain) +
3455 (num_rules * sizeof(struct ieee80211_reg_rule));
3457 rd = kzalloc(size_of_regd, GFP_KERNEL);
3463 rd->n_reg_rules = num_rules;
3464 rd->alpha2[0] = alpha2[0];
3465 rd->alpha2[1] = alpha2[1];
3467 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3469 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3470 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3472 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3478 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3484 BUG_ON(rule_idx != num_rules);
3488 mutex_unlock(&cfg80211_mutex);
3493 mutex_unlock(&cfg80211_mutex);
3498 static int validate_scan_freqs(struct nlattr *freqs)
3500 struct nlattr *attr1, *attr2;
3501 int n_channels = 0, tmp1, tmp2;
3503 nla_for_each_nested(attr1, freqs, tmp1) {
3506 * Some hardware has a limited channel list for
3507 * scanning, and it is pretty much nonsensical
3508 * to scan for a channel twice, so disallow that
3509 * and don't require drivers to check that the
3510 * channel list they get isn't longer than what
3511 * they can scan, as long as they can scan all
3512 * the channels they registered at once.
3514 nla_for_each_nested(attr2, freqs, tmp2)
3515 if (attr1 != attr2 &&
3516 nla_get_u32(attr1) == nla_get_u32(attr2))
3523 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3526 struct net_device *dev = info->user_ptr[1];
3527 struct cfg80211_scan_request *request;
3528 struct nlattr *attr;
3529 struct wiphy *wiphy;
3530 int err, tmp, n_ssids = 0, n_channels, i;
3533 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3536 wiphy = &rdev->wiphy;
3538 if (!rdev->ops->scan)
3544 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3545 n_channels = validate_scan_freqs(
3546 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3550 enum ieee80211_band band;
3553 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3554 if (wiphy->bands[band])
3555 n_channels += wiphy->bands[band]->n_channels;
3558 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3559 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3562 if (n_ssids > wiphy->max_scan_ssids)
3565 if (info->attrs[NL80211_ATTR_IE])
3566 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3570 if (ie_len > wiphy->max_scan_ie_len)
3573 request = kzalloc(sizeof(*request)
3574 + sizeof(*request->ssids) * n_ssids
3575 + sizeof(*request->channels) * n_channels
3576 + ie_len, GFP_KERNEL);
3581 request->ssids = (void *)&request->channels[n_channels];
3582 request->n_ssids = n_ssids;
3585 request->ie = (void *)(request->ssids + n_ssids);
3587 request->ie = (void *)(request->channels + n_channels);
3591 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3592 /* user specified, bail out if channel not found */
3593 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3594 struct ieee80211_channel *chan;
3596 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3603 /* ignore disabled channels */
3604 if (chan->flags & IEEE80211_CHAN_DISABLED)
3607 request->channels[i] = chan;
3611 enum ieee80211_band band;
3614 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3616 if (!wiphy->bands[band])
3618 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3619 struct ieee80211_channel *chan;
3621 chan = &wiphy->bands[band]->channels[j];
3623 if (chan->flags & IEEE80211_CHAN_DISABLED)
3626 request->channels[i] = chan;
3637 request->n_channels = i;
3640 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3641 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3642 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3646 request->ssids[i].ssid_len = nla_len(attr);
3647 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3652 if (info->attrs[NL80211_ATTR_IE]) {
3653 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3654 memcpy((void *)request->ie,
3655 nla_data(info->attrs[NL80211_ATTR_IE]),
3659 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3660 if (wiphy->bands[i])
3662 (1 << wiphy->bands[i]->n_bitrates) - 1;
3664 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3665 nla_for_each_nested(attr,
3666 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3668 enum ieee80211_band band = nla_type(attr);
3670 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3674 err = ieee80211_get_ratemask(wiphy->bands[band],
3677 &request->rates[band]);
3684 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3687 request->wiphy = &rdev->wiphy;
3689 rdev->scan_req = request;
3690 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3693 nl80211_send_scan_start(rdev, dev);
3697 rdev->scan_req = NULL;
3704 static int nl80211_start_sched_scan(struct sk_buff *skb,
3705 struct genl_info *info)
3707 struct cfg80211_sched_scan_request *request;
3708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3709 struct net_device *dev = info->user_ptr[1];
3710 struct nlattr *attr;
3711 struct wiphy *wiphy;
3712 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
3714 enum ieee80211_band band;
3716 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
3718 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3719 !rdev->ops->sched_scan_start)
3722 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3725 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3728 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3732 wiphy = &rdev->wiphy;
3734 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3735 n_channels = validate_scan_freqs(
3736 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3742 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3743 if (wiphy->bands[band])
3744 n_channels += wiphy->bands[band]->n_channels;
3747 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3748 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3752 if (n_ssids > wiphy->max_sched_scan_ssids)
3755 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3756 nla_for_each_nested(attr,
3757 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3761 if (n_match_sets > wiphy->max_match_sets)
3764 if (info->attrs[NL80211_ATTR_IE])
3765 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3769 if (ie_len > wiphy->max_sched_scan_ie_len)
3772 mutex_lock(&rdev->sched_scan_mtx);
3774 if (rdev->sched_scan_req) {
3779 request = kzalloc(sizeof(*request)
3780 + sizeof(*request->ssids) * n_ssids
3781 + sizeof(*request->match_sets) * n_match_sets
3782 + sizeof(*request->channels) * n_channels
3783 + ie_len, GFP_KERNEL);
3790 request->ssids = (void *)&request->channels[n_channels];
3791 request->n_ssids = n_ssids;
3794 request->ie = (void *)(request->ssids + n_ssids);
3796 request->ie = (void *)(request->channels + n_channels);
3801 request->match_sets = (void *)(request->ie + ie_len);
3802 else if (request->ssids)
3803 request->match_sets =
3804 (void *)(request->ssids + n_ssids);
3806 request->match_sets =
3807 (void *)(request->channels + n_channels);
3809 request->n_match_sets = n_match_sets;
3812 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3813 /* user specified, bail out if channel not found */
3814 nla_for_each_nested(attr,
3815 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3817 struct ieee80211_channel *chan;
3819 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3826 /* ignore disabled channels */
3827 if (chan->flags & IEEE80211_CHAN_DISABLED)
3830 request->channels[i] = chan;
3835 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3837 if (!wiphy->bands[band])
3839 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3840 struct ieee80211_channel *chan;
3842 chan = &wiphy->bands[band]->channels[j];
3844 if (chan->flags & IEEE80211_CHAN_DISABLED)
3847 request->channels[i] = chan;
3858 request->n_channels = i;
3861 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3862 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3864 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3868 request->ssids[i].ssid_len = nla_len(attr);
3869 memcpy(request->ssids[i].ssid, nla_data(attr),
3876 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3877 nla_for_each_nested(attr,
3878 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3880 struct nlattr *ssid;
3882 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3883 nla_data(attr), nla_len(attr),
3884 nl80211_match_policy);
3885 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3887 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3891 memcpy(request->match_sets[i].ssid.ssid,
3892 nla_data(ssid), nla_len(ssid));
3893 request->match_sets[i].ssid.ssid_len =
3900 if (info->attrs[NL80211_ATTR_IE]) {
3901 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3902 memcpy((void *)request->ie,
3903 nla_data(info->attrs[NL80211_ATTR_IE]),
3908 request->wiphy = &rdev->wiphy;
3909 request->interval = interval;
3911 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3913 rdev->sched_scan_req = request;
3914 nl80211_send_sched_scan(rdev, dev,
3915 NL80211_CMD_START_SCHED_SCAN);
3922 mutex_unlock(&rdev->sched_scan_mtx);
3926 static int nl80211_stop_sched_scan(struct sk_buff *skb,
3927 struct genl_info *info)
3929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3932 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3933 !rdev->ops->sched_scan_stop)
3936 mutex_lock(&rdev->sched_scan_mtx);
3937 err = __cfg80211_stop_sched_scan(rdev, false);
3938 mutex_unlock(&rdev->sched_scan_mtx);
3943 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3945 struct cfg80211_registered_device *rdev,
3946 struct wireless_dev *wdev,
3947 struct cfg80211_internal_bss *intbss)
3949 struct cfg80211_bss *res = &intbss->pub;
3954 ASSERT_WDEV_LOCK(wdev);
3956 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
3957 NL80211_CMD_NEW_SCAN_RESULTS);
3961 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3963 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3964 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3966 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3968 goto nla_put_failure;
3969 if (!is_zero_ether_addr(res->bssid))
3970 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3971 if (res->information_elements && res->len_information_elements)
3972 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3973 res->len_information_elements,
3974 res->information_elements);
3975 if (res->beacon_ies && res->len_beacon_ies &&
3976 res->beacon_ies != res->information_elements)
3977 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3978 res->len_beacon_ies, res->beacon_ies);
3980 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3981 if (res->beacon_interval)
3982 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3983 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3984 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3985 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3986 jiffies_to_msecs(jiffies - intbss->ts));
3988 switch (rdev->wiphy.signal_type) {
3989 case CFG80211_SIGNAL_TYPE_MBM:
3990 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3992 case CFG80211_SIGNAL_TYPE_UNSPEC:
3993 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3999 switch (wdev->iftype) {
4000 case NL80211_IFTYPE_P2P_CLIENT:
4001 case NL80211_IFTYPE_STATION:
4002 if (intbss == wdev->current_bss)
4003 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4004 NL80211_BSS_STATUS_ASSOCIATED);
4005 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
4006 if (intbss != wdev->auth_bsses[i])
4008 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4009 NL80211_BSS_STATUS_AUTHENTICATED);
4013 case NL80211_IFTYPE_ADHOC:
4014 if (intbss == wdev->current_bss)
4015 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4016 NL80211_BSS_STATUS_IBSS_JOINED);
4022 nla_nest_end(msg, bss);
4024 return genlmsg_end(msg, hdr);
4027 genlmsg_cancel(msg, hdr);
4031 static int nl80211_dump_scan(struct sk_buff *skb,
4032 struct netlink_callback *cb)
4034 struct cfg80211_registered_device *rdev;
4035 struct net_device *dev;
4036 struct cfg80211_internal_bss *scan;
4037 struct wireless_dev *wdev;
4038 int start = cb->args[1], idx = 0;
4041 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4045 wdev = dev->ieee80211_ptr;
4048 spin_lock_bh(&rdev->bss_lock);
4049 cfg80211_bss_expire(rdev);
4051 cb->seq = rdev->bss_generation;
4053 list_for_each_entry(scan, &rdev->bss_list, list) {
4056 if (nl80211_send_bss(skb, cb,
4057 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4058 rdev, wdev, scan) < 0) {
4064 spin_unlock_bh(&rdev->bss_lock);
4068 nl80211_finish_netdev_dump(rdev);
4073 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4074 int flags, struct net_device *dev,
4075 struct survey_info *survey)
4078 struct nlattr *infoattr;
4080 hdr = nl80211hdr_put(msg, pid, seq, flags,
4081 NL80211_CMD_NEW_SURVEY_RESULTS);
4085 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4087 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4089 goto nla_put_failure;
4091 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4092 survey->channel->center_freq);
4093 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4094 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4096 if (survey->filled & SURVEY_INFO_IN_USE)
4097 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
4098 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4099 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4100 survey->channel_time);
4101 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4102 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4103 survey->channel_time_busy);
4104 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4105 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4106 survey->channel_time_ext_busy);
4107 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4108 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4109 survey->channel_time_rx);
4110 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4111 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4112 survey->channel_time_tx);
4114 nla_nest_end(msg, infoattr);
4116 return genlmsg_end(msg, hdr);
4119 genlmsg_cancel(msg, hdr);
4123 static int nl80211_dump_survey(struct sk_buff *skb,
4124 struct netlink_callback *cb)
4126 struct survey_info survey;
4127 struct cfg80211_registered_device *dev;
4128 struct net_device *netdev;
4129 int survey_idx = cb->args[1];
4132 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4136 if (!dev->ops->dump_survey) {
4142 struct ieee80211_channel *chan;
4144 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4151 /* Survey without a channel doesn't make sense */
4152 if (!survey.channel) {
4157 chan = ieee80211_get_channel(&dev->wiphy,
4158 survey.channel->center_freq);
4159 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4164 if (nl80211_send_survey(skb,
4165 NETLINK_CB(cb->skb).pid,
4166 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4174 cb->args[1] = survey_idx;
4177 nl80211_finish_netdev_dump(dev);
4181 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4183 return auth_type <= NL80211_AUTHTYPE_MAX;
4186 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4188 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4189 NL80211_WPA_VERSION_2));
4192 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4195 struct net_device *dev = info->user_ptr[1];
4196 struct ieee80211_channel *chan;
4197 const u8 *bssid, *ssid, *ie = NULL;
4198 int err, ssid_len, ie_len = 0;
4199 enum nl80211_auth_type auth_type;
4200 struct key_parse key;
4201 bool local_state_change;
4203 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4206 if (!info->attrs[NL80211_ATTR_MAC])
4209 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4212 if (!info->attrs[NL80211_ATTR_SSID])
4215 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4218 err = nl80211_parse_key(info, &key);
4223 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4225 if (!key.p.key || !key.p.key_len)
4227 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4228 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4229 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4230 key.p.key_len != WLAN_KEY_LEN_WEP104))
4242 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4243 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4252 if (!rdev->ops->auth)
4255 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4256 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4259 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4260 chan = ieee80211_get_channel(&rdev->wiphy,
4261 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4262 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4265 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4266 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4268 if (info->attrs[NL80211_ATTR_IE]) {
4269 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4270 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4273 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4274 if (!nl80211_valid_auth_type(auth_type))
4277 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4279 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4280 ssid, ssid_len, ie, ie_len,
4281 key.p.key, key.p.key_len, key.idx,
4282 local_state_change);
4285 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4286 struct genl_info *info,
4287 struct cfg80211_crypto_settings *settings,
4290 memset(settings, 0, sizeof(*settings));
4292 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4294 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4296 proto = nla_get_u16(
4297 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4298 settings->control_port_ethertype = cpu_to_be16(proto);
4299 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4302 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4303 settings->control_port_no_encrypt = true;
4305 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4307 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4311 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4312 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4313 settings->n_ciphers_pairwise = len / sizeof(u32);
4315 if (len % sizeof(u32))
4318 if (settings->n_ciphers_pairwise > cipher_limit)
4321 memcpy(settings->ciphers_pairwise, data, len);
4323 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4324 if (!cfg80211_supported_cipher_suite(
4326 settings->ciphers_pairwise[i]))
4330 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4331 settings->cipher_group =
4332 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4333 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4334 settings->cipher_group))
4338 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4339 settings->wpa_versions =
4340 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4341 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4345 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4349 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4350 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4351 settings->n_akm_suites = len / sizeof(u32);
4353 if (len % sizeof(u32))
4356 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4359 memcpy(settings->akm_suites, data, len);
4365 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4368 struct net_device *dev = info->user_ptr[1];
4369 struct cfg80211_crypto_settings crypto;
4370 struct ieee80211_channel *chan;
4371 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4372 int err, ssid_len, ie_len = 0;
4373 bool use_mfp = false;
4375 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4378 if (!info->attrs[NL80211_ATTR_MAC] ||
4379 !info->attrs[NL80211_ATTR_SSID] ||
4380 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4383 if (!rdev->ops->assoc)
4386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4387 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4390 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4392 chan = ieee80211_get_channel(&rdev->wiphy,
4393 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4394 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4397 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4398 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4400 if (info->attrs[NL80211_ATTR_IE]) {
4401 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4402 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4405 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4406 enum nl80211_mfp mfp =
4407 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4408 if (mfp == NL80211_MFP_REQUIRED)
4410 else if (mfp != NL80211_MFP_NO)
4414 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4415 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4417 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4419 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4420 ssid, ssid_len, ie, ie_len, use_mfp,
4426 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4429 struct net_device *dev = info->user_ptr[1];
4430 const u8 *ie = NULL, *bssid;
4433 bool local_state_change;
4435 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4438 if (!info->attrs[NL80211_ATTR_MAC])
4441 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4444 if (!rdev->ops->deauth)
4447 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4448 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4451 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4453 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4454 if (reason_code == 0) {
4455 /* Reason Code 0 is reserved */
4459 if (info->attrs[NL80211_ATTR_IE]) {
4460 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4461 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4464 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4466 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4467 local_state_change);
4470 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4473 struct net_device *dev = info->user_ptr[1];
4474 const u8 *ie = NULL, *bssid;
4477 bool local_state_change;
4479 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4482 if (!info->attrs[NL80211_ATTR_MAC])
4485 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4488 if (!rdev->ops->disassoc)
4491 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4492 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4495 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4497 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4498 if (reason_code == 0) {
4499 /* Reason Code 0 is reserved */
4503 if (info->attrs[NL80211_ATTR_IE]) {
4504 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4505 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4508 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4510 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4511 local_state_change);
4515 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4516 int mcast_rate[IEEE80211_NUM_BANDS],
4519 struct wiphy *wiphy = &rdev->wiphy;
4523 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4524 struct ieee80211_supported_band *sband;
4526 sband = wiphy->bands[band];
4530 for (i = 0; i < sband->n_bitrates; i++) {
4531 if (sband->bitrates[i].bitrate == rateval) {
4532 mcast_rate[band] = i + 1;
4542 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4545 struct net_device *dev = info->user_ptr[1];
4546 struct cfg80211_ibss_params ibss;
4547 struct wiphy *wiphy;
4548 struct cfg80211_cached_keys *connkeys = NULL;
4551 memset(&ibss, 0, sizeof(ibss));
4553 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4556 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4557 !info->attrs[NL80211_ATTR_SSID] ||
4558 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4561 ibss.beacon_interval = 100;
4563 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4564 ibss.beacon_interval =
4565 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4566 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4570 if (!rdev->ops->join_ibss)
4573 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4576 wiphy = &rdev->wiphy;
4578 if (info->attrs[NL80211_ATTR_MAC]) {
4579 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4581 if (!is_valid_ether_addr(ibss.bssid))
4584 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4585 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4587 if (info->attrs[NL80211_ATTR_IE]) {
4588 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4589 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4592 ibss.channel = ieee80211_get_channel(wiphy,
4593 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4594 if (!ibss.channel ||
4595 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4596 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4599 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4600 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4602 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4604 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4606 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4607 struct ieee80211_supported_band *sband =
4608 wiphy->bands[ibss.channel->band];
4611 err = ieee80211_get_ratemask(sband, rates, n_rates,
4617 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4618 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4619 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4622 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4623 connkeys = nl80211_parse_connkeys(rdev,
4624 info->attrs[NL80211_ATTR_KEYS]);
4625 if (IS_ERR(connkeys))
4626 return PTR_ERR(connkeys);
4629 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4635 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4638 struct net_device *dev = info->user_ptr[1];
4640 if (!rdev->ops->leave_ibss)
4643 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4646 return cfg80211_leave_ibss(rdev, dev, false);
4649 #ifdef CONFIG_NL80211_TESTMODE
4650 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4654 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4659 if (!info->attrs[NL80211_ATTR_TESTDATA])
4663 if (rdev->ops->testmode_cmd) {
4664 rdev->testmode_info = info;
4665 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4666 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4667 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4668 rdev->testmode_info = NULL;
4674 static int nl80211_testmode_dump(struct sk_buff *skb,
4675 struct netlink_callback *cb)
4677 struct cfg80211_registered_device *dev;
4685 * 0 is a valid index, but not valid for args[0],
4686 * so we need to offset by 1.
4688 phy_idx = cb->args[0] - 1;
4690 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4691 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4695 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4697 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4698 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4700 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4704 data = nla_data((void *)cb->args[1]);
4705 data_len = nla_len((void *)cb->args[1]);
4708 mutex_lock(&cfg80211_mutex);
4709 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4711 mutex_unlock(&cfg80211_mutex);
4714 cfg80211_lock_rdev(dev);
4715 mutex_unlock(&cfg80211_mutex);
4717 if (!dev->ops->testmode_dump) {
4723 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4724 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4725 NL80211_CMD_TESTMODE);
4726 struct nlattr *tmdata;
4728 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4729 genlmsg_cancel(skb, hdr);
4733 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4735 genlmsg_cancel(skb, hdr);
4738 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4740 nla_nest_end(skb, tmdata);
4742 if (err == -ENOBUFS || err == -ENOENT) {
4743 genlmsg_cancel(skb, hdr);
4746 genlmsg_cancel(skb, hdr);
4750 genlmsg_end(skb, hdr);
4755 cb->args[0] = phy_idx + 1;
4757 cfg80211_unlock_rdev(dev);
4761 static struct sk_buff *
4762 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4763 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4765 struct sk_buff *skb;
4767 struct nlattr *data;
4769 skb = nlmsg_new(approxlen + 100, gfp);
4773 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4779 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4780 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4782 ((void **)skb->cb)[0] = rdev;
4783 ((void **)skb->cb)[1] = hdr;
4784 ((void **)skb->cb)[2] = data;
4793 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4796 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4798 if (WARN_ON(!rdev->testmode_info))
4801 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4802 rdev->testmode_info->snd_pid,
4803 rdev->testmode_info->snd_seq,
4806 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4808 int cfg80211_testmode_reply(struct sk_buff *skb)
4810 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4811 void *hdr = ((void **)skb->cb)[1];
4812 struct nlattr *data = ((void **)skb->cb)[2];
4814 /* clear CB data for netlink core to own from now on */
4815 memset(skb->cb, 0, sizeof(skb->cb));
4817 if (WARN_ON(!rdev->testmode_info)) {
4822 nla_nest_end(skb, data);
4823 genlmsg_end(skb, hdr);
4824 return genlmsg_reply(skb, rdev->testmode_info);
4826 EXPORT_SYMBOL(cfg80211_testmode_reply);
4828 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4829 int approxlen, gfp_t gfp)
4831 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4833 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4835 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4837 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4839 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4840 void *hdr = ((void **)skb->cb)[1];
4841 struct nlattr *data = ((void **)skb->cb)[2];
4843 /* clear CB data for netlink core to own from now on */
4844 memset(skb->cb, 0, sizeof(skb->cb));
4846 nla_nest_end(skb, data);
4847 genlmsg_end(skb, hdr);
4848 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
4849 nl80211_testmode_mcgrp.id, gfp);
4851 EXPORT_SYMBOL(cfg80211_testmode_event);
4854 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4857 struct net_device *dev = info->user_ptr[1];
4858 struct cfg80211_connect_params connect;
4859 struct wiphy *wiphy;
4860 struct cfg80211_cached_keys *connkeys = NULL;
4863 memset(&connect, 0, sizeof(connect));
4865 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4868 if (!info->attrs[NL80211_ATTR_SSID] ||
4869 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4872 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4874 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4875 if (!nl80211_valid_auth_type(connect.auth_type))
4878 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4880 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4882 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
4883 NL80211_MAX_NR_CIPHER_SUITES);
4887 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4888 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4891 wiphy = &rdev->wiphy;
4893 if (info->attrs[NL80211_ATTR_MAC])
4894 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4895 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4896 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4898 if (info->attrs[NL80211_ATTR_IE]) {
4899 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4900 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4903 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4905 ieee80211_get_channel(wiphy,
4906 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4907 if (!connect.channel ||
4908 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4912 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4913 connkeys = nl80211_parse_connkeys(rdev,
4914 info->attrs[NL80211_ATTR_KEYS]);
4915 if (IS_ERR(connkeys))
4916 return PTR_ERR(connkeys);
4919 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4925 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4927 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4928 struct net_device *dev = info->user_ptr[1];
4931 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4932 reason = WLAN_REASON_DEAUTH_LEAVING;
4934 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4939 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4940 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4943 return cfg80211_disconnect(rdev, dev, reason, true);
4946 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4953 if (!info->attrs[NL80211_ATTR_PID])
4956 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4958 net = get_net_ns_by_pid(pid);
4960 return PTR_ERR(net);
4964 /* check if anything to do */
4965 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4966 err = cfg80211_switch_netns(rdev, net);
4972 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4974 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4975 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4976 struct cfg80211_pmksa *pmksa) = NULL;
4977 struct net_device *dev = info->user_ptr[1];
4978 struct cfg80211_pmksa pmksa;
4980 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4982 if (!info->attrs[NL80211_ATTR_MAC])
4985 if (!info->attrs[NL80211_ATTR_PMKID])
4988 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4989 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4991 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4992 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4995 switch (info->genlhdr->cmd) {
4996 case NL80211_CMD_SET_PMKSA:
4997 rdev_ops = rdev->ops->set_pmksa;
4999 case NL80211_CMD_DEL_PMKSA:
5000 rdev_ops = rdev->ops->del_pmksa;
5010 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5013 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5015 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5016 struct net_device *dev = info->user_ptr[1];
5018 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5019 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5022 if (!rdev->ops->flush_pmksa)
5025 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5028 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5031 struct net_device *dev = info->user_ptr[1];
5032 u8 action_code, dialog_token;
5036 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5037 !rdev->ops->tdls_mgmt)
5040 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5041 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5042 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5043 !info->attrs[NL80211_ATTR_IE] ||
5044 !info->attrs[NL80211_ATTR_MAC])
5047 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5048 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5049 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5050 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5052 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5053 dialog_token, status_code,
5054 nla_data(info->attrs[NL80211_ATTR_IE]),
5055 nla_len(info->attrs[NL80211_ATTR_IE]));
5058 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5061 struct net_device *dev = info->user_ptr[1];
5062 enum nl80211_tdls_operation operation;
5065 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5066 !rdev->ops->tdls_oper)
5069 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5070 !info->attrs[NL80211_ATTR_MAC])
5073 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5074 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5076 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5079 static int nl80211_remain_on_channel(struct sk_buff *skb,
5080 struct genl_info *info)
5082 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5083 struct net_device *dev = info->user_ptr[1];
5084 struct ieee80211_channel *chan;
5085 struct sk_buff *msg;
5088 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5092 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5093 !info->attrs[NL80211_ATTR_DURATION])
5096 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5099 * We should be on that channel for at least one jiffie,
5100 * and more than 5 seconds seems excessive.
5102 if (!duration || !msecs_to_jiffies(duration) ||
5103 duration > rdev->wiphy.max_remain_on_channel_duration)
5106 if (!rdev->ops->remain_on_channel)
5109 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5110 channel_type = nla_get_u32(
5111 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5112 if (channel_type != NL80211_CHAN_NO_HT &&
5113 channel_type != NL80211_CHAN_HT20 &&
5114 channel_type != NL80211_CHAN_HT40PLUS &&
5115 channel_type != NL80211_CHAN_HT40MINUS)
5119 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5120 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5124 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5128 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5129 NL80211_CMD_REMAIN_ON_CHANNEL);
5136 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5137 channel_type, duration, &cookie);
5142 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5144 genlmsg_end(msg, hdr);
5146 return genlmsg_reply(msg, info);
5155 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5156 struct genl_info *info)
5158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5159 struct net_device *dev = info->user_ptr[1];
5162 if (!info->attrs[NL80211_ATTR_COOKIE])
5165 if (!rdev->ops->cancel_remain_on_channel)
5168 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5170 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5173 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5174 u8 *rates, u8 rates_len)
5179 for (i = 0; i < rates_len; i++) {
5180 int rate = (rates[i] & 0x7f) * 5;
5182 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5183 struct ieee80211_rate *srate =
5184 &sband->bitrates[ridx];
5185 if (rate == srate->bitrate) {
5190 if (ridx == sband->n_bitrates)
5191 return 0; /* rate not found */
5197 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5198 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5199 .len = NL80211_MAX_SUPP_RATES },
5202 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5203 struct genl_info *info)
5205 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5207 struct cfg80211_bitrate_mask mask;
5209 struct net_device *dev = info->user_ptr[1];
5210 struct nlattr *tx_rates;
5211 struct ieee80211_supported_band *sband;
5213 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5216 if (!rdev->ops->set_bitrate_mask)
5219 memset(&mask, 0, sizeof(mask));
5220 /* Default to all rates enabled */
5221 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5222 sband = rdev->wiphy.bands[i];
5223 mask.control[i].legacy =
5224 sband ? (1 << sband->n_bitrates) - 1 : 0;
5228 * The nested attribute uses enum nl80211_band as the index. This maps
5229 * directly to the enum ieee80211_band values used in cfg80211.
5231 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5233 enum ieee80211_band band = nla_type(tx_rates);
5234 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5236 sband = rdev->wiphy.bands[band];
5239 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5240 nla_len(tx_rates), nl80211_txattr_policy);
5241 if (tb[NL80211_TXRATE_LEGACY]) {
5242 mask.control[band].legacy = rateset_to_mask(
5244 nla_data(tb[NL80211_TXRATE_LEGACY]),
5245 nla_len(tb[NL80211_TXRATE_LEGACY]));
5246 if (mask.control[band].legacy == 0)
5251 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5254 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5257 struct net_device *dev = info->user_ptr[1];
5258 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5260 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5263 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5264 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5266 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5267 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5270 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5271 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5272 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5275 /* not much point in registering if we can't reply */
5276 if (!rdev->ops->mgmt_tx)
5279 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5281 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5282 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5285 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5288 struct net_device *dev = info->user_ptr[1];
5289 struct ieee80211_channel *chan;
5290 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5291 bool channel_type_valid = false;
5296 struct sk_buff *msg;
5297 unsigned int wait = 0;
5301 if (!info->attrs[NL80211_ATTR_FRAME] ||
5302 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5305 if (!rdev->ops->mgmt_tx)
5308 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5309 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5310 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5311 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5312 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5313 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5314 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5317 if (info->attrs[NL80211_ATTR_DURATION]) {
5318 if (!rdev->ops->mgmt_tx_cancel_wait)
5320 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5323 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5324 channel_type = nla_get_u32(
5325 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5326 if (channel_type != NL80211_CHAN_NO_HT &&
5327 channel_type != NL80211_CHAN_HT20 &&
5328 channel_type != NL80211_CHAN_HT40PLUS &&
5329 channel_type != NL80211_CHAN_HT40MINUS)
5331 channel_type_valid = true;
5334 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5336 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5338 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5339 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5343 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5347 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5354 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5355 channel_type_valid, wait,
5356 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5357 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5362 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5364 genlmsg_end(msg, hdr);
5365 return genlmsg_reply(msg, info);
5374 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5377 struct net_device *dev = info->user_ptr[1];
5380 if (!info->attrs[NL80211_ATTR_COOKIE])
5383 if (!rdev->ops->mgmt_tx_cancel_wait)
5386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5387 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5388 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5389 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5390 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5394 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5396 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5399 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5401 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5402 struct wireless_dev *wdev;
5403 struct net_device *dev = info->user_ptr[1];
5408 if (!info->attrs[NL80211_ATTR_PS_STATE])
5411 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5413 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5416 wdev = dev->ieee80211_ptr;
5418 if (!rdev->ops->set_power_mgmt)
5421 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5423 if (state == wdev->ps)
5426 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5433 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5435 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5436 enum nl80211_ps_state ps_state;
5437 struct wireless_dev *wdev;
5438 struct net_device *dev = info->user_ptr[1];
5439 struct sk_buff *msg;
5443 wdev = dev->ieee80211_ptr;
5445 if (!rdev->ops->set_power_mgmt)
5448 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5452 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5453 NL80211_CMD_GET_POWER_SAVE);
5460 ps_state = NL80211_PS_ENABLED;
5462 ps_state = NL80211_PS_DISABLED;
5464 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5466 genlmsg_end(msg, hdr);
5467 return genlmsg_reply(msg, info);
5476 static struct nla_policy
5477 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5478 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5479 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5480 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5483 static int nl80211_set_cqm_rssi(struct genl_info *info,
5484 s32 threshold, u32 hysteresis)
5486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5487 struct wireless_dev *wdev;
5488 struct net_device *dev = info->user_ptr[1];
5493 wdev = dev->ieee80211_ptr;
5495 if (!rdev->ops->set_cqm_rssi_config)
5498 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5499 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5502 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5503 threshold, hysteresis);
5506 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5508 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5512 cqm = info->attrs[NL80211_ATTR_CQM];
5518 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5519 nl80211_attr_cqm_policy);
5523 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5524 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5527 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5528 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5529 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5537 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5540 struct net_device *dev = info->user_ptr[1];
5541 struct mesh_config cfg;
5542 struct mesh_setup setup;
5545 /* start with default */
5546 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5547 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5549 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5550 /* and parse parameters if given */
5551 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5556 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5557 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5560 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5561 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5563 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5564 /* parse additional setup parameters if given */
5565 err = nl80211_parse_mesh_setup(info, &setup);
5570 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5573 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5576 struct net_device *dev = info->user_ptr[1];
5578 return cfg80211_leave_mesh(rdev, dev);
5581 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5583 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5584 struct sk_buff *msg;
5587 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5590 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5594 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5595 NL80211_CMD_GET_WOWLAN);
5597 goto nla_put_failure;
5600 struct nlattr *nl_wowlan;
5602 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5604 goto nla_put_failure;
5606 if (rdev->wowlan->any)
5607 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5608 if (rdev->wowlan->disconnect)
5609 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5610 if (rdev->wowlan->magic_pkt)
5611 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5612 if (rdev->wowlan->gtk_rekey_failure)
5613 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5614 if (rdev->wowlan->eap_identity_req)
5615 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5616 if (rdev->wowlan->four_way_handshake)
5617 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5618 if (rdev->wowlan->rfkill_release)
5619 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
5620 if (rdev->wowlan->n_patterns) {
5621 struct nlattr *nl_pats, *nl_pat;
5624 nl_pats = nla_nest_start(msg,
5625 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5627 goto nla_put_failure;
5629 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5630 nl_pat = nla_nest_start(msg, i + 1);
5632 goto nla_put_failure;
5633 pat_len = rdev->wowlan->patterns[i].pattern_len;
5634 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5635 DIV_ROUND_UP(pat_len, 8),
5636 rdev->wowlan->patterns[i].mask);
5637 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5639 rdev->wowlan->patterns[i].pattern);
5640 nla_nest_end(msg, nl_pat);
5642 nla_nest_end(msg, nl_pats);
5645 nla_nest_end(msg, nl_wowlan);
5648 genlmsg_end(msg, hdr);
5649 return genlmsg_reply(msg, info);
5656 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5659 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5660 struct cfg80211_wowlan no_triggers = {};
5661 struct cfg80211_wowlan new_triggers = {};
5662 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5665 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5668 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5671 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5672 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5673 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5674 nl80211_wowlan_policy);
5678 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5679 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5681 new_triggers.any = true;
5684 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5685 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5687 new_triggers.disconnect = true;
5690 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5691 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5693 new_triggers.magic_pkt = true;
5696 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5699 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5700 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5702 new_triggers.gtk_rekey_failure = true;
5705 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5706 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5708 new_triggers.eap_identity_req = true;
5711 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5712 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5714 new_triggers.four_way_handshake = true;
5717 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5718 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5720 new_triggers.rfkill_release = true;
5723 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5726 int rem, pat_len, mask_len;
5727 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5729 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5732 if (n_patterns > wowlan->n_patterns)
5735 new_triggers.patterns = kcalloc(n_patterns,
5736 sizeof(new_triggers.patterns[0]),
5738 if (!new_triggers.patterns)
5741 new_triggers.n_patterns = n_patterns;
5744 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5746 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5747 nla_data(pat), nla_len(pat), NULL);
5749 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5750 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5752 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5753 mask_len = DIV_ROUND_UP(pat_len, 8);
5754 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5757 if (pat_len > wowlan->pattern_max_len ||
5758 pat_len < wowlan->pattern_min_len)
5761 new_triggers.patterns[i].mask =
5762 kmalloc(mask_len + pat_len, GFP_KERNEL);
5763 if (!new_triggers.patterns[i].mask) {
5767 new_triggers.patterns[i].pattern =
5768 new_triggers.patterns[i].mask + mask_len;
5769 memcpy(new_triggers.patterns[i].mask,
5770 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5772 new_triggers.patterns[i].pattern_len = pat_len;
5773 memcpy(new_triggers.patterns[i].pattern,
5774 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5780 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5781 struct cfg80211_wowlan *ntrig;
5782 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5788 cfg80211_rdev_free_wowlan(rdev);
5789 rdev->wowlan = ntrig;
5792 cfg80211_rdev_free_wowlan(rdev);
5793 rdev->wowlan = NULL;
5798 for (i = 0; i < new_triggers.n_patterns; i++)
5799 kfree(new_triggers.patterns[i].mask);
5800 kfree(new_triggers.patterns);
5804 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5806 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5807 struct net_device *dev = info->user_ptr[1];
5808 struct wireless_dev *wdev = dev->ieee80211_ptr;
5809 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5810 struct cfg80211_gtk_rekey_data rekey_data;
5813 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5816 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5817 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5818 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5819 nl80211_rekey_policy);
5823 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5825 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5827 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5830 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5832 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5834 memcpy(rekey_data.replay_ctr,
5835 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5836 NL80211_REPLAY_CTR_LEN);
5839 if (!wdev->current_bss) {
5844 if (!rdev->ops->set_rekey_data) {
5849 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5855 #define NL80211_FLAG_NEED_WIPHY 0x01
5856 #define NL80211_FLAG_NEED_NETDEV 0x02
5857 #define NL80211_FLAG_NEED_RTNL 0x04
5858 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5859 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5860 NL80211_FLAG_CHECK_NETDEV_UP)
5862 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5863 struct genl_info *info)
5865 struct cfg80211_registered_device *rdev;
5866 struct net_device *dev;
5868 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5873 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5874 rdev = cfg80211_get_dev_from_info(info);
5878 return PTR_ERR(rdev);
5880 info->user_ptr[0] = rdev;
5881 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5882 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5888 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5889 !netif_running(dev)) {
5890 cfg80211_unlock_rdev(rdev);
5896 info->user_ptr[0] = rdev;
5897 info->user_ptr[1] = dev;
5903 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5904 struct genl_info *info)
5906 if (info->user_ptr[0])
5907 cfg80211_unlock_rdev(info->user_ptr[0]);
5908 if (info->user_ptr[1])
5909 dev_put(info->user_ptr[1]);
5910 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5914 static struct genl_ops nl80211_ops[] = {
5916 .cmd = NL80211_CMD_GET_WIPHY,
5917 .doit = nl80211_get_wiphy,
5918 .dumpit = nl80211_dump_wiphy,
5919 .policy = nl80211_policy,
5920 /* can be retrieved by unprivileged users */
5921 .internal_flags = NL80211_FLAG_NEED_WIPHY,
5924 .cmd = NL80211_CMD_SET_WIPHY,
5925 .doit = nl80211_set_wiphy,
5926 .policy = nl80211_policy,
5927 .flags = GENL_ADMIN_PERM,
5928 .internal_flags = NL80211_FLAG_NEED_RTNL,
5931 .cmd = NL80211_CMD_GET_INTERFACE,
5932 .doit = nl80211_get_interface,
5933 .dumpit = nl80211_dump_interface,
5934 .policy = nl80211_policy,
5935 /* can be retrieved by unprivileged users */
5936 .internal_flags = NL80211_FLAG_NEED_NETDEV,
5939 .cmd = NL80211_CMD_SET_INTERFACE,
5940 .doit = nl80211_set_interface,
5941 .policy = nl80211_policy,
5942 .flags = GENL_ADMIN_PERM,
5943 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5944 NL80211_FLAG_NEED_RTNL,
5947 .cmd = NL80211_CMD_NEW_INTERFACE,
5948 .doit = nl80211_new_interface,
5949 .policy = nl80211_policy,
5950 .flags = GENL_ADMIN_PERM,
5951 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5952 NL80211_FLAG_NEED_RTNL,
5955 .cmd = NL80211_CMD_DEL_INTERFACE,
5956 .doit = nl80211_del_interface,
5957 .policy = nl80211_policy,
5958 .flags = GENL_ADMIN_PERM,
5959 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5960 NL80211_FLAG_NEED_RTNL,
5963 .cmd = NL80211_CMD_GET_KEY,
5964 .doit = nl80211_get_key,
5965 .policy = nl80211_policy,
5966 .flags = GENL_ADMIN_PERM,
5967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5968 NL80211_FLAG_NEED_RTNL,
5971 .cmd = NL80211_CMD_SET_KEY,
5972 .doit = nl80211_set_key,
5973 .policy = nl80211_policy,
5974 .flags = GENL_ADMIN_PERM,
5975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5976 NL80211_FLAG_NEED_RTNL,
5979 .cmd = NL80211_CMD_NEW_KEY,
5980 .doit = nl80211_new_key,
5981 .policy = nl80211_policy,
5982 .flags = GENL_ADMIN_PERM,
5983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5984 NL80211_FLAG_NEED_RTNL,
5987 .cmd = NL80211_CMD_DEL_KEY,
5988 .doit = nl80211_del_key,
5989 .policy = nl80211_policy,
5990 .flags = GENL_ADMIN_PERM,
5991 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5992 NL80211_FLAG_NEED_RTNL,
5995 .cmd = NL80211_CMD_SET_BEACON,
5996 .policy = nl80211_policy,
5997 .flags = GENL_ADMIN_PERM,
5998 .doit = nl80211_addset_beacon,
5999 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6000 NL80211_FLAG_NEED_RTNL,
6003 .cmd = NL80211_CMD_NEW_BEACON,
6004 .policy = nl80211_policy,
6005 .flags = GENL_ADMIN_PERM,
6006 .doit = nl80211_addset_beacon,
6007 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6008 NL80211_FLAG_NEED_RTNL,
6011 .cmd = NL80211_CMD_DEL_BEACON,
6012 .policy = nl80211_policy,
6013 .flags = GENL_ADMIN_PERM,
6014 .doit = nl80211_del_beacon,
6015 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6016 NL80211_FLAG_NEED_RTNL,
6019 .cmd = NL80211_CMD_GET_STATION,
6020 .doit = nl80211_get_station,
6021 .dumpit = nl80211_dump_station,
6022 .policy = nl80211_policy,
6023 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6024 NL80211_FLAG_NEED_RTNL,
6027 .cmd = NL80211_CMD_SET_STATION,
6028 .doit = nl80211_set_station,
6029 .policy = nl80211_policy,
6030 .flags = GENL_ADMIN_PERM,
6031 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6032 NL80211_FLAG_NEED_RTNL,
6035 .cmd = NL80211_CMD_NEW_STATION,
6036 .doit = nl80211_new_station,
6037 .policy = nl80211_policy,
6038 .flags = GENL_ADMIN_PERM,
6039 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6040 NL80211_FLAG_NEED_RTNL,
6043 .cmd = NL80211_CMD_DEL_STATION,
6044 .doit = nl80211_del_station,
6045 .policy = nl80211_policy,
6046 .flags = GENL_ADMIN_PERM,
6047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6048 NL80211_FLAG_NEED_RTNL,
6051 .cmd = NL80211_CMD_GET_MPATH,
6052 .doit = nl80211_get_mpath,
6053 .dumpit = nl80211_dump_mpath,
6054 .policy = nl80211_policy,
6055 .flags = GENL_ADMIN_PERM,
6056 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6057 NL80211_FLAG_NEED_RTNL,
6060 .cmd = NL80211_CMD_SET_MPATH,
6061 .doit = nl80211_set_mpath,
6062 .policy = nl80211_policy,
6063 .flags = GENL_ADMIN_PERM,
6064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6065 NL80211_FLAG_NEED_RTNL,
6068 .cmd = NL80211_CMD_NEW_MPATH,
6069 .doit = nl80211_new_mpath,
6070 .policy = nl80211_policy,
6071 .flags = GENL_ADMIN_PERM,
6072 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6073 NL80211_FLAG_NEED_RTNL,
6076 .cmd = NL80211_CMD_DEL_MPATH,
6077 .doit = nl80211_del_mpath,
6078 .policy = nl80211_policy,
6079 .flags = GENL_ADMIN_PERM,
6080 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6081 NL80211_FLAG_NEED_RTNL,
6084 .cmd = NL80211_CMD_SET_BSS,
6085 .doit = nl80211_set_bss,
6086 .policy = nl80211_policy,
6087 .flags = GENL_ADMIN_PERM,
6088 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6089 NL80211_FLAG_NEED_RTNL,
6092 .cmd = NL80211_CMD_GET_REG,
6093 .doit = nl80211_get_reg,
6094 .policy = nl80211_policy,
6095 /* can be retrieved by unprivileged users */
6098 .cmd = NL80211_CMD_SET_REG,
6099 .doit = nl80211_set_reg,
6100 .policy = nl80211_policy,
6101 .flags = GENL_ADMIN_PERM,
6104 .cmd = NL80211_CMD_REQ_SET_REG,
6105 .doit = nl80211_req_set_reg,
6106 .policy = nl80211_policy,
6107 .flags = GENL_ADMIN_PERM,
6110 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6111 .doit = nl80211_get_mesh_config,
6112 .policy = nl80211_policy,
6113 /* can be retrieved by unprivileged users */
6114 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6115 NL80211_FLAG_NEED_RTNL,
6118 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6119 .doit = nl80211_update_mesh_config,
6120 .policy = nl80211_policy,
6121 .flags = GENL_ADMIN_PERM,
6122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6123 NL80211_FLAG_NEED_RTNL,
6126 .cmd = NL80211_CMD_TRIGGER_SCAN,
6127 .doit = nl80211_trigger_scan,
6128 .policy = nl80211_policy,
6129 .flags = GENL_ADMIN_PERM,
6130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6131 NL80211_FLAG_NEED_RTNL,
6134 .cmd = NL80211_CMD_GET_SCAN,
6135 .policy = nl80211_policy,
6136 .dumpit = nl80211_dump_scan,
6139 .cmd = NL80211_CMD_START_SCHED_SCAN,
6140 .doit = nl80211_start_sched_scan,
6141 .policy = nl80211_policy,
6142 .flags = GENL_ADMIN_PERM,
6143 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6144 NL80211_FLAG_NEED_RTNL,
6147 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6148 .doit = nl80211_stop_sched_scan,
6149 .policy = nl80211_policy,
6150 .flags = GENL_ADMIN_PERM,
6151 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6152 NL80211_FLAG_NEED_RTNL,
6155 .cmd = NL80211_CMD_AUTHENTICATE,
6156 .doit = nl80211_authenticate,
6157 .policy = nl80211_policy,
6158 .flags = GENL_ADMIN_PERM,
6159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6160 NL80211_FLAG_NEED_RTNL,
6163 .cmd = NL80211_CMD_ASSOCIATE,
6164 .doit = nl80211_associate,
6165 .policy = nl80211_policy,
6166 .flags = GENL_ADMIN_PERM,
6167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6168 NL80211_FLAG_NEED_RTNL,
6171 .cmd = NL80211_CMD_DEAUTHENTICATE,
6172 .doit = nl80211_deauthenticate,
6173 .policy = nl80211_policy,
6174 .flags = GENL_ADMIN_PERM,
6175 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6176 NL80211_FLAG_NEED_RTNL,
6179 .cmd = NL80211_CMD_DISASSOCIATE,
6180 .doit = nl80211_disassociate,
6181 .policy = nl80211_policy,
6182 .flags = GENL_ADMIN_PERM,
6183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6184 NL80211_FLAG_NEED_RTNL,
6187 .cmd = NL80211_CMD_JOIN_IBSS,
6188 .doit = nl80211_join_ibss,
6189 .policy = nl80211_policy,
6190 .flags = GENL_ADMIN_PERM,
6191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6192 NL80211_FLAG_NEED_RTNL,
6195 .cmd = NL80211_CMD_LEAVE_IBSS,
6196 .doit = nl80211_leave_ibss,
6197 .policy = nl80211_policy,
6198 .flags = GENL_ADMIN_PERM,
6199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6200 NL80211_FLAG_NEED_RTNL,
6202 #ifdef CONFIG_NL80211_TESTMODE
6204 .cmd = NL80211_CMD_TESTMODE,
6205 .doit = nl80211_testmode_do,
6206 .dumpit = nl80211_testmode_dump,
6207 .policy = nl80211_policy,
6208 .flags = GENL_ADMIN_PERM,
6209 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6210 NL80211_FLAG_NEED_RTNL,
6214 .cmd = NL80211_CMD_CONNECT,
6215 .doit = nl80211_connect,
6216 .policy = nl80211_policy,
6217 .flags = GENL_ADMIN_PERM,
6218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6219 NL80211_FLAG_NEED_RTNL,
6222 .cmd = NL80211_CMD_DISCONNECT,
6223 .doit = nl80211_disconnect,
6224 .policy = nl80211_policy,
6225 .flags = GENL_ADMIN_PERM,
6226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6227 NL80211_FLAG_NEED_RTNL,
6230 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6231 .doit = nl80211_wiphy_netns,
6232 .policy = nl80211_policy,
6233 .flags = GENL_ADMIN_PERM,
6234 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6235 NL80211_FLAG_NEED_RTNL,
6238 .cmd = NL80211_CMD_GET_SURVEY,
6239 .policy = nl80211_policy,
6240 .dumpit = nl80211_dump_survey,
6243 .cmd = NL80211_CMD_SET_PMKSA,
6244 .doit = nl80211_setdel_pmksa,
6245 .policy = nl80211_policy,
6246 .flags = GENL_ADMIN_PERM,
6247 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6248 NL80211_FLAG_NEED_RTNL,
6251 .cmd = NL80211_CMD_DEL_PMKSA,
6252 .doit = nl80211_setdel_pmksa,
6253 .policy = nl80211_policy,
6254 .flags = GENL_ADMIN_PERM,
6255 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6256 NL80211_FLAG_NEED_RTNL,
6259 .cmd = NL80211_CMD_FLUSH_PMKSA,
6260 .doit = nl80211_flush_pmksa,
6261 .policy = nl80211_policy,
6262 .flags = GENL_ADMIN_PERM,
6263 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6264 NL80211_FLAG_NEED_RTNL,
6267 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6268 .doit = nl80211_remain_on_channel,
6269 .policy = nl80211_policy,
6270 .flags = GENL_ADMIN_PERM,
6271 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6272 NL80211_FLAG_NEED_RTNL,
6275 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6276 .doit = nl80211_cancel_remain_on_channel,
6277 .policy = nl80211_policy,
6278 .flags = GENL_ADMIN_PERM,
6279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6280 NL80211_FLAG_NEED_RTNL,
6283 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6284 .doit = nl80211_set_tx_bitrate_mask,
6285 .policy = nl80211_policy,
6286 .flags = GENL_ADMIN_PERM,
6287 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6288 NL80211_FLAG_NEED_RTNL,
6291 .cmd = NL80211_CMD_REGISTER_FRAME,
6292 .doit = nl80211_register_mgmt,
6293 .policy = nl80211_policy,
6294 .flags = GENL_ADMIN_PERM,
6295 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6296 NL80211_FLAG_NEED_RTNL,
6299 .cmd = NL80211_CMD_FRAME,
6300 .doit = nl80211_tx_mgmt,
6301 .policy = nl80211_policy,
6302 .flags = GENL_ADMIN_PERM,
6303 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6304 NL80211_FLAG_NEED_RTNL,
6307 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6308 .doit = nl80211_tx_mgmt_cancel_wait,
6309 .policy = nl80211_policy,
6310 .flags = GENL_ADMIN_PERM,
6311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6312 NL80211_FLAG_NEED_RTNL,
6315 .cmd = NL80211_CMD_SET_POWER_SAVE,
6316 .doit = nl80211_set_power_save,
6317 .policy = nl80211_policy,
6318 .flags = GENL_ADMIN_PERM,
6319 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6320 NL80211_FLAG_NEED_RTNL,
6323 .cmd = NL80211_CMD_GET_POWER_SAVE,
6324 .doit = nl80211_get_power_save,
6325 .policy = nl80211_policy,
6326 /* can be retrieved by unprivileged users */
6327 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6328 NL80211_FLAG_NEED_RTNL,
6331 .cmd = NL80211_CMD_SET_CQM,
6332 .doit = nl80211_set_cqm,
6333 .policy = nl80211_policy,
6334 .flags = GENL_ADMIN_PERM,
6335 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6336 NL80211_FLAG_NEED_RTNL,
6339 .cmd = NL80211_CMD_SET_CHANNEL,
6340 .doit = nl80211_set_channel,
6341 .policy = nl80211_policy,
6342 .flags = GENL_ADMIN_PERM,
6343 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6344 NL80211_FLAG_NEED_RTNL,
6347 .cmd = NL80211_CMD_SET_WDS_PEER,
6348 .doit = nl80211_set_wds_peer,
6349 .policy = nl80211_policy,
6350 .flags = GENL_ADMIN_PERM,
6351 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6352 NL80211_FLAG_NEED_RTNL,
6355 .cmd = NL80211_CMD_JOIN_MESH,
6356 .doit = nl80211_join_mesh,
6357 .policy = nl80211_policy,
6358 .flags = GENL_ADMIN_PERM,
6359 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6360 NL80211_FLAG_NEED_RTNL,
6363 .cmd = NL80211_CMD_LEAVE_MESH,
6364 .doit = nl80211_leave_mesh,
6365 .policy = nl80211_policy,
6366 .flags = GENL_ADMIN_PERM,
6367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6368 NL80211_FLAG_NEED_RTNL,
6371 .cmd = NL80211_CMD_GET_WOWLAN,
6372 .doit = nl80211_get_wowlan,
6373 .policy = nl80211_policy,
6374 /* can be retrieved by unprivileged users */
6375 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6376 NL80211_FLAG_NEED_RTNL,
6379 .cmd = NL80211_CMD_SET_WOWLAN,
6380 .doit = nl80211_set_wowlan,
6381 .policy = nl80211_policy,
6382 .flags = GENL_ADMIN_PERM,
6383 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6384 NL80211_FLAG_NEED_RTNL,
6387 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6388 .doit = nl80211_set_rekey_data,
6389 .policy = nl80211_policy,
6390 .flags = GENL_ADMIN_PERM,
6391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6392 NL80211_FLAG_NEED_RTNL,
6395 .cmd = NL80211_CMD_TDLS_MGMT,
6396 .doit = nl80211_tdls_mgmt,
6397 .policy = nl80211_policy,
6398 .flags = GENL_ADMIN_PERM,
6399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6400 NL80211_FLAG_NEED_RTNL,
6403 .cmd = NL80211_CMD_TDLS_OPER,
6404 .doit = nl80211_tdls_oper,
6405 .policy = nl80211_policy,
6406 .flags = GENL_ADMIN_PERM,
6407 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6408 NL80211_FLAG_NEED_RTNL,
6412 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6416 /* multicast groups */
6417 static struct genl_multicast_group nl80211_config_mcgrp = {
6420 static struct genl_multicast_group nl80211_scan_mcgrp = {
6423 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6424 .name = "regulatory",
6427 /* notification functions */
6429 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6431 struct sk_buff *msg;
6433 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6437 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6442 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6443 nl80211_config_mcgrp.id, GFP_KERNEL);
6446 static int nl80211_add_scan_req(struct sk_buff *msg,
6447 struct cfg80211_registered_device *rdev)
6449 struct cfg80211_scan_request *req = rdev->scan_req;
6450 struct nlattr *nest;
6453 ASSERT_RDEV_LOCK(rdev);
6458 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6460 goto nla_put_failure;
6461 for (i = 0; i < req->n_ssids; i++)
6462 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6463 nla_nest_end(msg, nest);
6465 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6467 goto nla_put_failure;
6468 for (i = 0; i < req->n_channels; i++)
6469 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6470 nla_nest_end(msg, nest);
6473 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6480 static int nl80211_send_scan_msg(struct sk_buff *msg,
6481 struct cfg80211_registered_device *rdev,
6482 struct net_device *netdev,
6483 u32 pid, u32 seq, int flags,
6488 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6492 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6493 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6495 /* ignore errors and send incomplete event anyway */
6496 nl80211_add_scan_req(msg, rdev);
6498 return genlmsg_end(msg, hdr);
6501 genlmsg_cancel(msg, hdr);
6506 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6507 struct cfg80211_registered_device *rdev,
6508 struct net_device *netdev,
6509 u32 pid, u32 seq, int flags, u32 cmd)
6513 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6517 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6518 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6520 return genlmsg_end(msg, hdr);
6523 genlmsg_cancel(msg, hdr);
6527 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6528 struct net_device *netdev)
6530 struct sk_buff *msg;
6532 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6536 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6537 NL80211_CMD_TRIGGER_SCAN) < 0) {
6542 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6543 nl80211_scan_mcgrp.id, GFP_KERNEL);
6546 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6547 struct net_device *netdev)
6549 struct sk_buff *msg;
6551 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6555 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6556 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
6561 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6562 nl80211_scan_mcgrp.id, GFP_KERNEL);
6565 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6566 struct net_device *netdev)
6568 struct sk_buff *msg;
6570 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6574 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6575 NL80211_CMD_SCAN_ABORTED) < 0) {
6580 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6581 nl80211_scan_mcgrp.id, GFP_KERNEL);
6584 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6585 struct net_device *netdev)
6587 struct sk_buff *msg;
6589 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6593 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6594 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6599 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6600 nl80211_scan_mcgrp.id, GFP_KERNEL);
6603 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6604 struct net_device *netdev, u32 cmd)
6606 struct sk_buff *msg;
6608 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6612 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6617 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6618 nl80211_scan_mcgrp.id, GFP_KERNEL);
6622 * This can happen on global regulatory changes or device specific settings
6623 * based on custom world regulatory domains.
6625 void nl80211_send_reg_change_event(struct regulatory_request *request)
6627 struct sk_buff *msg;
6630 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6634 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6640 /* Userspace can always count this one always being set */
6641 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6643 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6644 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6645 NL80211_REGDOM_TYPE_WORLD);
6646 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6647 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6648 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6649 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6651 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6652 NL80211_REGDOM_TYPE_INTERSECTION);
6654 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6655 NL80211_REGDOM_TYPE_COUNTRY);
6656 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6659 if (wiphy_idx_valid(request->wiphy_idx))
6660 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6662 if (genlmsg_end(msg, hdr) < 0) {
6668 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6675 genlmsg_cancel(msg, hdr);
6679 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6680 struct net_device *netdev,
6681 const u8 *buf, size_t len,
6682 enum nl80211_commands cmd, gfp_t gfp)
6684 struct sk_buff *msg;
6687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6691 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6697 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6698 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6699 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6701 if (genlmsg_end(msg, hdr) < 0) {
6706 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6707 nl80211_mlme_mcgrp.id, gfp);
6711 genlmsg_cancel(msg, hdr);
6715 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
6716 struct net_device *netdev, const u8 *buf,
6717 size_t len, gfp_t gfp)
6719 nl80211_send_mlme_event(rdev, netdev, buf, len,
6720 NL80211_CMD_AUTHENTICATE, gfp);
6723 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6724 struct net_device *netdev, const u8 *buf,
6725 size_t len, gfp_t gfp)
6727 nl80211_send_mlme_event(rdev, netdev, buf, len,
6728 NL80211_CMD_ASSOCIATE, gfp);
6731 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
6732 struct net_device *netdev, const u8 *buf,
6733 size_t len, gfp_t gfp)
6735 nl80211_send_mlme_event(rdev, netdev, buf, len,
6736 NL80211_CMD_DEAUTHENTICATE, gfp);
6739 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6740 struct net_device *netdev, const u8 *buf,
6741 size_t len, gfp_t gfp)
6743 nl80211_send_mlme_event(rdev, netdev, buf, len,
6744 NL80211_CMD_DISASSOCIATE, gfp);
6747 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6748 struct net_device *netdev, const u8 *buf,
6749 size_t len, gfp_t gfp)
6751 nl80211_send_mlme_event(rdev, netdev, buf, len,
6752 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6755 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6756 struct net_device *netdev, const u8 *buf,
6757 size_t len, gfp_t gfp)
6759 nl80211_send_mlme_event(rdev, netdev, buf, len,
6760 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6763 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6764 struct net_device *netdev, int cmd,
6765 const u8 *addr, gfp_t gfp)
6767 struct sk_buff *msg;
6770 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6774 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6780 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6781 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6782 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6783 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6785 if (genlmsg_end(msg, hdr) < 0) {
6790 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6791 nl80211_mlme_mcgrp.id, gfp);
6795 genlmsg_cancel(msg, hdr);
6799 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
6800 struct net_device *netdev, const u8 *addr,
6803 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
6807 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
6808 struct net_device *netdev, const u8 *addr,
6811 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6815 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6816 struct net_device *netdev, const u8 *bssid,
6817 const u8 *req_ie, size_t req_ie_len,
6818 const u8 *resp_ie, size_t resp_ie_len,
6819 u16 status, gfp_t gfp)
6821 struct sk_buff *msg;
6824 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6828 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6834 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6835 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6837 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6838 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6840 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6842 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6844 if (genlmsg_end(msg, hdr) < 0) {
6849 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6850 nl80211_mlme_mcgrp.id, gfp);
6854 genlmsg_cancel(msg, hdr);
6859 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6860 struct net_device *netdev, const u8 *bssid,
6861 const u8 *req_ie, size_t req_ie_len,
6862 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6864 struct sk_buff *msg;
6867 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6871 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6877 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6878 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6879 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6881 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6883 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6885 if (genlmsg_end(msg, hdr) < 0) {
6890 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6891 nl80211_mlme_mcgrp.id, gfp);
6895 genlmsg_cancel(msg, hdr);
6900 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6901 struct net_device *netdev, u16 reason,
6902 const u8 *ie, size_t ie_len, bool from_ap)
6904 struct sk_buff *msg;
6907 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6911 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6917 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6918 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6919 if (from_ap && reason)
6920 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6922 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6924 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6926 if (genlmsg_end(msg, hdr) < 0) {
6931 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6932 nl80211_mlme_mcgrp.id, GFP_KERNEL);
6936 genlmsg_cancel(msg, hdr);
6941 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6942 struct net_device *netdev, const u8 *bssid,
6945 struct sk_buff *msg;
6948 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6952 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6958 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6959 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6960 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6962 if (genlmsg_end(msg, hdr) < 0) {
6967 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6968 nl80211_mlme_mcgrp.id, gfp);
6972 genlmsg_cancel(msg, hdr);
6976 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6977 struct net_device *netdev,
6978 const u8 *macaddr, const u8* ie, u8 ie_len,
6981 struct sk_buff *msg;
6984 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6988 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6994 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6995 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6996 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6998 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7000 if (genlmsg_end(msg, hdr) < 0) {
7005 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7006 nl80211_mlme_mcgrp.id, gfp);
7010 genlmsg_cancel(msg, hdr);
7014 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7015 struct net_device *netdev, const u8 *addr,
7016 enum nl80211_key_type key_type, int key_id,
7017 const u8 *tsc, gfp_t gfp)
7019 struct sk_buff *msg;
7022 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7026 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7032 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7033 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7035 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7036 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
7038 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
7040 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7042 if (genlmsg_end(msg, hdr) < 0) {
7047 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7048 nl80211_mlme_mcgrp.id, gfp);
7052 genlmsg_cancel(msg, hdr);
7056 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7057 struct ieee80211_channel *channel_before,
7058 struct ieee80211_channel *channel_after)
7060 struct sk_buff *msg;
7062 struct nlattr *nl_freq;
7064 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7068 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7075 * Since we are applying the beacon hint to a wiphy we know its
7076 * wiphy_idx is valid
7078 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7081 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7083 goto nla_put_failure;
7084 if (nl80211_msg_put_channel(msg, channel_before))
7085 goto nla_put_failure;
7086 nla_nest_end(msg, nl_freq);
7089 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7091 goto nla_put_failure;
7092 if (nl80211_msg_put_channel(msg, channel_after))
7093 goto nla_put_failure;
7094 nla_nest_end(msg, nl_freq);
7096 if (genlmsg_end(msg, hdr) < 0) {
7102 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7109 genlmsg_cancel(msg, hdr);
7113 static void nl80211_send_remain_on_chan_event(
7114 int cmd, struct cfg80211_registered_device *rdev,
7115 struct net_device *netdev, u64 cookie,
7116 struct ieee80211_channel *chan,
7117 enum nl80211_channel_type channel_type,
7118 unsigned int duration, gfp_t gfp)
7120 struct sk_buff *msg;
7123 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7127 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7133 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7134 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7135 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7136 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7137 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7139 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7140 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7142 if (genlmsg_end(msg, hdr) < 0) {
7147 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7148 nl80211_mlme_mcgrp.id, gfp);
7152 genlmsg_cancel(msg, hdr);
7156 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7157 struct net_device *netdev, u64 cookie,
7158 struct ieee80211_channel *chan,
7159 enum nl80211_channel_type channel_type,
7160 unsigned int duration, gfp_t gfp)
7162 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7163 rdev, netdev, cookie, chan,
7164 channel_type, duration, gfp);
7167 void nl80211_send_remain_on_channel_cancel(
7168 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7169 u64 cookie, struct ieee80211_channel *chan,
7170 enum nl80211_channel_type channel_type, gfp_t gfp)
7172 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7173 rdev, netdev, cookie, chan,
7174 channel_type, 0, gfp);
7177 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7178 struct net_device *dev, const u8 *mac_addr,
7179 struct station_info *sinfo, gfp_t gfp)
7181 struct sk_buff *msg;
7183 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7187 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7192 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7193 nl80211_mlme_mcgrp.id, gfp);
7196 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7197 struct net_device *dev, const u8 *mac_addr,
7200 struct sk_buff *msg;
7203 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7207 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7213 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7214 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7216 if (genlmsg_end(msg, hdr) < 0) {
7221 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7222 nl80211_mlme_mcgrp.id, gfp);
7226 genlmsg_cancel(msg, hdr);
7230 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7231 struct net_device *netdev, u32 nlpid,
7232 int freq, const u8 *buf, size_t len, gfp_t gfp)
7234 struct sk_buff *msg;
7238 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7242 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7248 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7249 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7250 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7251 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7253 err = genlmsg_end(msg, hdr);
7259 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7265 genlmsg_cancel(msg, hdr);
7270 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7271 struct net_device *netdev, u64 cookie,
7272 const u8 *buf, size_t len, bool ack,
7275 struct sk_buff *msg;
7278 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7282 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7288 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7289 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7290 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7291 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7293 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7295 if (genlmsg_end(msg, hdr) < 0) {
7300 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7301 nl80211_mlme_mcgrp.id, gfp);
7305 genlmsg_cancel(msg, hdr);
7310 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7311 struct net_device *netdev,
7312 enum nl80211_cqm_rssi_threshold_event rssi_event,
7315 struct sk_buff *msg;
7316 struct nlattr *pinfoattr;
7319 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7323 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7329 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7330 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7332 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7334 goto nla_put_failure;
7336 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7339 nla_nest_end(msg, pinfoattr);
7341 if (genlmsg_end(msg, hdr) < 0) {
7346 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7347 nl80211_mlme_mcgrp.id, gfp);
7351 genlmsg_cancel(msg, hdr);
7355 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7356 struct net_device *netdev, const u8 *bssid,
7357 const u8 *replay_ctr, gfp_t gfp)
7359 struct sk_buff *msg;
7360 struct nlattr *rekey_attr;
7363 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7367 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7373 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7374 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7375 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7377 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7379 goto nla_put_failure;
7381 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7382 NL80211_REPLAY_CTR_LEN, replay_ctr);
7384 nla_nest_end(msg, rekey_attr);
7386 if (genlmsg_end(msg, hdr) < 0) {
7391 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7392 nl80211_mlme_mcgrp.id, gfp);
7396 genlmsg_cancel(msg, hdr);
7400 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7401 struct net_device *netdev, int index,
7402 const u8 *bssid, bool preauth, gfp_t gfp)
7404 struct sk_buff *msg;
7405 struct nlattr *attr;
7408 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7412 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7418 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7419 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7421 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7423 goto nla_put_failure;
7425 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7426 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7428 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7430 nla_nest_end(msg, attr);
7432 if (genlmsg_end(msg, hdr) < 0) {
7437 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7438 nl80211_mlme_mcgrp.id, gfp);
7442 genlmsg_cancel(msg, hdr);
7447 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7448 struct net_device *netdev, const u8 *peer,
7449 u32 num_packets, gfp_t gfp)
7451 struct sk_buff *msg;
7452 struct nlattr *pinfoattr;
7455 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7459 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7465 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7466 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7467 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7469 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7471 goto nla_put_failure;
7473 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7475 nla_nest_end(msg, pinfoattr);
7477 if (genlmsg_end(msg, hdr) < 0) {
7482 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7483 nl80211_mlme_mcgrp.id, gfp);
7487 genlmsg_cancel(msg, hdr);
7491 static int nl80211_netlink_notify(struct notifier_block * nb,
7492 unsigned long state,
7495 struct netlink_notify *notify = _notify;
7496 struct cfg80211_registered_device *rdev;
7497 struct wireless_dev *wdev;
7499 if (state != NETLINK_URELEASE)
7504 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7505 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
7506 cfg80211_mlme_unregister_socket(wdev, notify->pid);
7513 static struct notifier_block nl80211_netlink_notifier = {
7514 .notifier_call = nl80211_netlink_notify,
7517 /* initialisation/exit functions */
7519 int nl80211_init(void)
7523 err = genl_register_family_with_ops(&nl80211_fam,
7524 nl80211_ops, ARRAY_SIZE(nl80211_ops));
7528 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7532 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7536 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7540 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7544 #ifdef CONFIG_NL80211_TESTMODE
7545 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7550 err = netlink_register_notifier(&nl80211_netlink_notifier);
7556 genl_unregister_family(&nl80211_fam);
7560 void nl80211_exit(void)
7562 netlink_unregister_notifier(&nl80211_netlink_notifier);
7563 genl_unregister_family(&nl80211_fam);