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] = { .len = WLAN_PMKID_LEN },
162 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
163 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
164 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
165 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
166 .len = IEEE80211_MAX_DATA_LEN },
167 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
168 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
169 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
170 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
171 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
172 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
173 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
174 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
175 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
176 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
177 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
178 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
179 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
180 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
181 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
182 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
183 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
184 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
185 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
186 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
187 .len = IEEE80211_MAX_DATA_LEN },
188 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
190 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
191 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
192 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
193 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
194 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
197 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
200 /* policy for the key attributes */
201 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
202 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
203 [NL80211_KEY_IDX] = { .type = NLA_U8 },
204 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
205 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
206 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
207 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
208 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
209 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
212 /* policy for the key default flags */
213 static const struct nla_policy
214 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
215 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
216 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
219 /* policy for WoWLAN attributes */
220 static const struct nla_policy
221 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
222 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
223 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
224 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
225 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
226 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
227 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
228 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
229 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
232 /* policy for GTK rekey offload attributes */
233 static const struct nla_policy
234 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
235 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
236 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
237 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
240 static const struct nla_policy
241 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
242 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
243 .len = IEEE80211_MAX_SSID_LEN },
246 /* ifidx get helper */
247 static int nl80211_get_ifidx(struct netlink_callback *cb)
251 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
252 nl80211_fam.attrbuf, nl80211_fam.maxattr,
257 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
260 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
266 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
267 struct netlink_callback *cb,
268 struct cfg80211_registered_device **rdev,
269 struct net_device **dev)
271 int ifidx = cb->args[0];
275 ifidx = nl80211_get_ifidx(cb);
283 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
289 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
291 err = PTR_ERR(*rdev);
301 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
303 cfg80211_unlock_rdev(rdev);
308 static bool is_valid_ie_attr(const struct nlattr *attr)
316 pos = nla_data(attr);
337 /* message building helper */
338 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
341 /* since there is no private header just add the generic one */
342 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
345 static int nl80211_msg_put_channel(struct sk_buff *msg,
346 struct ieee80211_channel *chan)
348 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
351 if (chan->flags & IEEE80211_CHAN_DISABLED)
352 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
353 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
354 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
355 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
356 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
357 if (chan->flags & IEEE80211_CHAN_RADAR)
358 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
360 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
361 DBM_TO_MBM(chan->max_power));
369 /* netlink command implementations */
376 bool def_uni, def_multi;
379 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
381 struct nlattr *tb[NL80211_KEY_MAX + 1];
382 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
387 k->def = !!tb[NL80211_KEY_DEFAULT];
388 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
397 if (tb[NL80211_KEY_IDX])
398 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
400 if (tb[NL80211_KEY_DATA]) {
401 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
402 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
405 if (tb[NL80211_KEY_SEQ]) {
406 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
407 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
410 if (tb[NL80211_KEY_CIPHER])
411 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
413 if (tb[NL80211_KEY_TYPE]) {
414 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
415 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
419 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
420 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
421 int err = nla_parse_nested(kdt,
422 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
423 tb[NL80211_KEY_DEFAULT_TYPES],
424 nl80211_key_default_policy);
428 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
429 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
435 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
437 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
438 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
439 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
442 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
443 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
444 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
447 if (info->attrs[NL80211_ATTR_KEY_IDX])
448 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
450 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
451 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
453 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
454 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
463 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
464 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
465 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
469 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
470 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
471 int err = nla_parse_nested(
472 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
473 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
474 nl80211_key_default_policy);
478 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
479 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
485 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
489 memset(k, 0, sizeof(*k));
493 if (info->attrs[NL80211_ATTR_KEY])
494 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
496 err = nl80211_parse_key_old(info, k);
501 if (k->def && k->defmgmt)
505 if (k->def_uni || !k->def_multi)
511 if (k->idx < 4 || k->idx > 5)
514 if (k->idx < 0 || k->idx > 3)
517 if (k->idx < 0 || k->idx > 5)
525 static struct cfg80211_cached_keys *
526 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
529 struct key_parse parse;
531 struct cfg80211_cached_keys *result;
532 int rem, err, def = 0;
534 result = kzalloc(sizeof(*result), GFP_KERNEL);
536 return ERR_PTR(-ENOMEM);
539 result->defmgmt = -1;
541 nla_for_each_nested(key, keys, rem) {
542 memset(&parse, 0, sizeof(parse));
545 err = nl80211_parse_key_new(key, &parse);
551 if (parse.idx < 0 || parse.idx > 4)
557 result->def = parse.idx;
558 if (!parse.def_uni || !parse.def_multi)
560 } else if (parse.defmgmt)
562 err = cfg80211_validate_key_settings(rdev, &parse.p,
563 parse.idx, false, NULL);
566 result->params[parse.idx].cipher = parse.p.cipher;
567 result->params[parse.idx].key_len = parse.p.key_len;
568 result->params[parse.idx].key = result->data[parse.idx];
569 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
578 static int nl80211_key_allowed(struct wireless_dev *wdev)
580 ASSERT_WDEV_LOCK(wdev);
582 switch (wdev->iftype) {
583 case NL80211_IFTYPE_AP:
584 case NL80211_IFTYPE_AP_VLAN:
585 case NL80211_IFTYPE_P2P_GO:
586 case NL80211_IFTYPE_MESH_POINT:
588 case NL80211_IFTYPE_ADHOC:
589 if (!wdev->current_bss)
592 case NL80211_IFTYPE_STATION:
593 case NL80211_IFTYPE_P2P_CLIENT:
594 if (wdev->sme_state != CFG80211_SME_CONNECTED)
604 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
606 struct nlattr *nl_modes = nla_nest_start(msg, attr);
610 goto nla_put_failure;
615 NLA_PUT_FLAG(msg, i);
620 nla_nest_end(msg, nl_modes);
627 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
630 struct nlattr *nl_combis;
633 nl_combis = nla_nest_start(msg,
634 NL80211_ATTR_INTERFACE_COMBINATIONS);
636 goto nla_put_failure;
638 for (i = 0; i < wiphy->n_iface_combinations; i++) {
639 const struct ieee80211_iface_combination *c;
640 struct nlattr *nl_combi, *nl_limits;
642 c = &wiphy->iface_combinations[i];
644 nl_combi = nla_nest_start(msg, i + 1);
646 goto nla_put_failure;
648 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
650 goto nla_put_failure;
652 for (j = 0; j < c->n_limits; j++) {
653 struct nlattr *nl_limit;
655 nl_limit = nla_nest_start(msg, j + 1);
657 goto nla_put_failure;
658 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
660 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
662 goto nla_put_failure;
663 nla_nest_end(msg, nl_limit);
666 nla_nest_end(msg, nl_limits);
668 if (c->beacon_int_infra_match)
670 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
671 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
672 c->num_different_channels);
673 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
676 nla_nest_end(msg, nl_combi);
679 nla_nest_end(msg, nl_combis);
686 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
687 struct cfg80211_registered_device *dev)
690 struct nlattr *nl_bands, *nl_band;
691 struct nlattr *nl_freqs, *nl_freq;
692 struct nlattr *nl_rates, *nl_rate;
693 struct nlattr *nl_cmds;
694 enum ieee80211_band band;
695 struct ieee80211_channel *chan;
696 struct ieee80211_rate *rate;
698 const struct ieee80211_txrx_stypes *mgmt_stypes =
699 dev->wiphy.mgmt_stypes;
701 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
705 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
706 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
708 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
709 cfg80211_rdev_list_generation);
711 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
712 dev->wiphy.retry_short);
713 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
714 dev->wiphy.retry_long);
715 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
716 dev->wiphy.frag_threshold);
717 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
718 dev->wiphy.rts_threshold);
719 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
720 dev->wiphy.coverage_class);
721 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
722 dev->wiphy.max_scan_ssids);
723 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
724 dev->wiphy.max_sched_scan_ssids);
725 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
726 dev->wiphy.max_scan_ie_len);
727 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
728 dev->wiphy.max_sched_scan_ie_len);
729 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
730 dev->wiphy.max_match_sets);
732 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
733 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
734 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
735 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
736 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
737 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
738 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
739 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
740 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
741 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
742 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
743 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
745 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
746 sizeof(u32) * dev->wiphy.n_cipher_suites,
747 dev->wiphy.cipher_suites);
749 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
750 dev->wiphy.max_num_pmkids);
752 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
753 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
755 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
756 dev->wiphy.available_antennas_tx);
757 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
758 dev->wiphy.available_antennas_rx);
760 if ((dev->wiphy.available_antennas_tx ||
761 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
762 u32 tx_ant = 0, rx_ant = 0;
764 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
766 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
767 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
771 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
772 dev->wiphy.interface_modes))
773 goto nla_put_failure;
775 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
777 goto nla_put_failure;
779 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
780 if (!dev->wiphy.bands[band])
783 nl_band = nla_nest_start(msg, band);
785 goto nla_put_failure;
788 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
789 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
790 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
791 &dev->wiphy.bands[band]->ht_cap.mcs);
792 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
793 dev->wiphy.bands[band]->ht_cap.cap);
794 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
795 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
796 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
797 dev->wiphy.bands[band]->ht_cap.ampdu_density);
800 /* add frequencies */
801 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
803 goto nla_put_failure;
805 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
806 nl_freq = nla_nest_start(msg, i);
808 goto nla_put_failure;
810 chan = &dev->wiphy.bands[band]->channels[i];
812 if (nl80211_msg_put_channel(msg, chan))
813 goto nla_put_failure;
815 nla_nest_end(msg, nl_freq);
818 nla_nest_end(msg, nl_freqs);
821 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
823 goto nla_put_failure;
825 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
826 nl_rate = nla_nest_start(msg, i);
828 goto nla_put_failure;
830 rate = &dev->wiphy.bands[band]->bitrates[i];
831 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
833 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
835 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
837 nla_nest_end(msg, nl_rate);
840 nla_nest_end(msg, nl_rates);
842 nla_nest_end(msg, nl_band);
844 nla_nest_end(msg, nl_bands);
846 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
848 goto nla_put_failure;
853 if (dev->ops->op) { \
855 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
859 CMD(add_virtual_intf, NEW_INTERFACE);
860 CMD(change_virtual_intf, SET_INTERFACE);
861 CMD(add_key, NEW_KEY);
862 CMD(add_beacon, NEW_BEACON);
863 CMD(add_station, NEW_STATION);
864 CMD(add_mpath, NEW_MPATH);
865 CMD(update_mesh_config, SET_MESH_CONFIG);
866 CMD(change_bss, SET_BSS);
867 CMD(auth, AUTHENTICATE);
868 CMD(assoc, ASSOCIATE);
869 CMD(deauth, DEAUTHENTICATE);
870 CMD(disassoc, DISASSOCIATE);
871 CMD(join_ibss, JOIN_IBSS);
872 CMD(join_mesh, JOIN_MESH);
873 CMD(set_pmksa, SET_PMKSA);
874 CMD(del_pmksa, DEL_PMKSA);
875 CMD(flush_pmksa, FLUSH_PMKSA);
876 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
877 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
879 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
880 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
882 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
884 CMD(set_channel, SET_CHANNEL);
885 CMD(set_wds_peer, SET_WDS_PEER);
886 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
887 CMD(tdls_mgmt, TDLS_MGMT);
888 CMD(tdls_oper, TDLS_OPER);
890 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
891 CMD(sched_scan_start, START_SCHED_SCAN);
895 if (dev->ops->connect || dev->ops->auth) {
897 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
900 if (dev->ops->disconnect || dev->ops->deauth) {
902 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
905 nla_nest_end(msg, nl_cmds);
907 if (dev->ops->remain_on_channel)
908 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
909 dev->wiphy.max_remain_on_channel_duration);
911 if (dev->ops->mgmt_tx_cancel_wait)
912 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
916 struct nlattr *nl_ftypes, *nl_ifs;
917 enum nl80211_iftype ift;
919 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
921 goto nla_put_failure;
923 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
924 nl_ftypes = nla_nest_start(msg, ift);
926 goto nla_put_failure;
928 stypes = mgmt_stypes[ift].tx;
931 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
932 (i << 4) | IEEE80211_FTYPE_MGMT);
936 nla_nest_end(msg, nl_ftypes);
939 nla_nest_end(msg, nl_ifs);
941 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
943 goto nla_put_failure;
945 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
946 nl_ftypes = nla_nest_start(msg, ift);
948 goto nla_put_failure;
950 stypes = mgmt_stypes[ift].rx;
953 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
954 (i << 4) | IEEE80211_FTYPE_MGMT);
958 nla_nest_end(msg, nl_ftypes);
960 nla_nest_end(msg, nl_ifs);
963 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
964 struct nlattr *nl_wowlan;
966 nl_wowlan = nla_nest_start(msg,
967 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
969 goto nla_put_failure;
971 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
972 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
973 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
974 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
975 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
976 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
977 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
978 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
979 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
980 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
981 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
982 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
983 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
984 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
985 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
986 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
987 if (dev->wiphy.wowlan.n_patterns) {
988 struct nl80211_wowlan_pattern_support pat = {
989 .max_patterns = dev->wiphy.wowlan.n_patterns,
991 dev->wiphy.wowlan.pattern_min_len,
993 dev->wiphy.wowlan.pattern_max_len,
995 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
999 nla_nest_end(msg, nl_wowlan);
1002 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1003 dev->wiphy.software_iftypes))
1004 goto nla_put_failure;
1006 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1007 goto nla_put_failure;
1009 return genlmsg_end(msg, hdr);
1012 genlmsg_cancel(msg, hdr);
1016 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1019 int start = cb->args[0];
1020 struct cfg80211_registered_device *dev;
1022 mutex_lock(&cfg80211_mutex);
1023 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1024 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1028 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1029 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1035 mutex_unlock(&cfg80211_mutex);
1042 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1044 struct sk_buff *msg;
1045 struct cfg80211_registered_device *dev = info->user_ptr[0];
1047 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1051 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1056 return genlmsg_reply(msg, info);
1059 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1060 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1061 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1062 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1063 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1064 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1067 static int parse_txq_params(struct nlattr *tb[],
1068 struct ieee80211_txq_params *txq_params)
1070 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1071 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1072 !tb[NL80211_TXQ_ATTR_AIFS])
1075 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1076 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1077 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1078 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1079 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1084 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1087 * You can only set the channel explicitly for AP, mesh
1088 * and WDS type interfaces; all others have their channel
1089 * managed via their respective "establish a connection"
1090 * command (connect, join, ...)
1092 * Monitors are special as they are normally slaved to
1093 * whatever else is going on, so they behave as though
1094 * you tried setting the wiphy channel itself.
1097 wdev->iftype == NL80211_IFTYPE_AP ||
1098 wdev->iftype == NL80211_IFTYPE_WDS ||
1099 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1100 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1101 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1104 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1105 struct wireless_dev *wdev,
1106 struct genl_info *info)
1108 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1112 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1115 if (!nl80211_can_set_dev_channel(wdev))
1118 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1119 channel_type = nla_get_u32(info->attrs[
1120 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1121 if (channel_type != NL80211_CHAN_NO_HT &&
1122 channel_type != NL80211_CHAN_HT20 &&
1123 channel_type != NL80211_CHAN_HT40PLUS &&
1124 channel_type != NL80211_CHAN_HT40MINUS)
1128 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1130 mutex_lock(&rdev->devlist_mtx);
1133 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1136 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1138 mutex_unlock(&rdev->devlist_mtx);
1143 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1145 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1146 struct net_device *netdev = info->user_ptr[1];
1148 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1151 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1154 struct net_device *dev = info->user_ptr[1];
1155 struct wireless_dev *wdev = dev->ieee80211_ptr;
1158 if (!info->attrs[NL80211_ATTR_MAC])
1161 if (netif_running(dev))
1164 if (!rdev->ops->set_wds_peer)
1167 if (wdev->iftype != NL80211_IFTYPE_WDS)
1170 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1171 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1175 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1177 struct cfg80211_registered_device *rdev;
1178 struct net_device *netdev = NULL;
1179 struct wireless_dev *wdev;
1180 int result = 0, rem_txq_params = 0;
1181 struct nlattr *nl_txq_params;
1183 u8 retry_short = 0, retry_long = 0;
1184 u32 frag_threshold = 0, rts_threshold = 0;
1185 u8 coverage_class = 0;
1188 * Try to find the wiphy and netdev. Normally this
1189 * function shouldn't need the netdev, but this is
1190 * done for backward compatibility -- previously
1191 * setting the channel was done per wiphy, but now
1192 * it is per netdev. Previous userland like hostapd
1193 * also passed a netdev to set_wiphy, so that it is
1194 * possible to let that go to the right netdev!
1196 mutex_lock(&cfg80211_mutex);
1198 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1199 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1201 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1202 if (netdev && netdev->ieee80211_ptr) {
1203 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1204 mutex_lock(&rdev->mtx);
1210 rdev = __cfg80211_rdev_from_info(info);
1212 mutex_unlock(&cfg80211_mutex);
1213 return PTR_ERR(rdev);
1219 mutex_lock(&rdev->mtx);
1220 } else if (netif_running(netdev) &&
1221 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1222 wdev = netdev->ieee80211_ptr;
1227 * end workaround code, by now the rdev is available
1228 * and locked, and wdev may or may not be NULL.
1231 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1232 result = cfg80211_dev_rename(
1233 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1235 mutex_unlock(&cfg80211_mutex);
1240 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1241 struct ieee80211_txq_params txq_params;
1242 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1244 if (!rdev->ops->set_txq_params) {
1245 result = -EOPNOTSUPP;
1254 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1255 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1260 if (!netif_running(netdev)) {
1265 nla_for_each_nested(nl_txq_params,
1266 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1268 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1269 nla_data(nl_txq_params),
1270 nla_len(nl_txq_params),
1272 result = parse_txq_params(tb, &txq_params);
1276 result = rdev->ops->set_txq_params(&rdev->wiphy,
1284 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1285 result = __nl80211_set_channel(rdev, wdev, info);
1290 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1291 enum nl80211_tx_power_setting type;
1294 if (!rdev->ops->set_tx_power) {
1295 result = -EOPNOTSUPP;
1299 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1300 type = nla_get_u32(info->attrs[idx]);
1302 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1303 (type != NL80211_TX_POWER_AUTOMATIC)) {
1308 if (type != NL80211_TX_POWER_AUTOMATIC) {
1309 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1310 mbm = nla_get_u32(info->attrs[idx]);
1313 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1318 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1319 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1321 if ((!rdev->wiphy.available_antennas_tx &&
1322 !rdev->wiphy.available_antennas_rx) ||
1323 !rdev->ops->set_antenna) {
1324 result = -EOPNOTSUPP;
1328 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1329 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1331 /* reject antenna configurations which don't match the
1332 * available antenna masks, except for the "all" mask */
1333 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1334 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1339 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1340 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1342 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1349 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1350 retry_short = nla_get_u8(
1351 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1352 if (retry_short == 0) {
1356 changed |= WIPHY_PARAM_RETRY_SHORT;
1359 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1360 retry_long = nla_get_u8(
1361 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1362 if (retry_long == 0) {
1366 changed |= WIPHY_PARAM_RETRY_LONG;
1369 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1370 frag_threshold = nla_get_u32(
1371 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1372 if (frag_threshold < 256) {
1376 if (frag_threshold != (u32) -1) {
1378 * Fragments (apart from the last one) are required to
1379 * have even length. Make the fragmentation code
1380 * simpler by stripping LSB should someone try to use
1381 * odd threshold value.
1383 frag_threshold &= ~0x1;
1385 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1388 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1389 rts_threshold = nla_get_u32(
1390 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1391 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1394 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1395 coverage_class = nla_get_u8(
1396 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1397 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1401 u8 old_retry_short, old_retry_long;
1402 u32 old_frag_threshold, old_rts_threshold;
1403 u8 old_coverage_class;
1405 if (!rdev->ops->set_wiphy_params) {
1406 result = -EOPNOTSUPP;
1410 old_retry_short = rdev->wiphy.retry_short;
1411 old_retry_long = rdev->wiphy.retry_long;
1412 old_frag_threshold = rdev->wiphy.frag_threshold;
1413 old_rts_threshold = rdev->wiphy.rts_threshold;
1414 old_coverage_class = rdev->wiphy.coverage_class;
1416 if (changed & WIPHY_PARAM_RETRY_SHORT)
1417 rdev->wiphy.retry_short = retry_short;
1418 if (changed & WIPHY_PARAM_RETRY_LONG)
1419 rdev->wiphy.retry_long = retry_long;
1420 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1421 rdev->wiphy.frag_threshold = frag_threshold;
1422 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1423 rdev->wiphy.rts_threshold = rts_threshold;
1424 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1425 rdev->wiphy.coverage_class = coverage_class;
1427 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1429 rdev->wiphy.retry_short = old_retry_short;
1430 rdev->wiphy.retry_long = old_retry_long;
1431 rdev->wiphy.frag_threshold = old_frag_threshold;
1432 rdev->wiphy.rts_threshold = old_rts_threshold;
1433 rdev->wiphy.coverage_class = old_coverage_class;
1438 mutex_unlock(&rdev->mtx);
1445 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1446 struct cfg80211_registered_device *rdev,
1447 struct net_device *dev)
1451 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1455 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1456 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1457 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1458 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1460 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1461 rdev->devlist_generation ^
1462 (cfg80211_rdev_list_generation << 2));
1464 return genlmsg_end(msg, hdr);
1467 genlmsg_cancel(msg, hdr);
1471 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1475 int wp_start = cb->args[0];
1476 int if_start = cb->args[1];
1477 struct cfg80211_registered_device *rdev;
1478 struct wireless_dev *wdev;
1480 mutex_lock(&cfg80211_mutex);
1481 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1482 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1484 if (wp_idx < wp_start) {
1490 mutex_lock(&rdev->devlist_mtx);
1491 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1492 if (if_idx < if_start) {
1496 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1497 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1498 rdev, wdev->netdev) < 0) {
1499 mutex_unlock(&rdev->devlist_mtx);
1504 mutex_unlock(&rdev->devlist_mtx);
1509 mutex_unlock(&cfg80211_mutex);
1511 cb->args[0] = wp_idx;
1512 cb->args[1] = if_idx;
1517 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1519 struct sk_buff *msg;
1520 struct cfg80211_registered_device *dev = info->user_ptr[0];
1521 struct net_device *netdev = info->user_ptr[1];
1523 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1527 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1533 return genlmsg_reply(msg, info);
1536 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1537 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1538 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1539 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1540 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1541 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1544 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1546 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1554 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1555 nla, mntr_flags_policy))
1558 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1560 *mntrflags |= (1<<flag);
1565 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1566 struct net_device *netdev, u8 use_4addr,
1567 enum nl80211_iftype iftype)
1570 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1576 case NL80211_IFTYPE_AP_VLAN:
1577 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1580 case NL80211_IFTYPE_STATION:
1581 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1591 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1594 struct vif_params params;
1596 enum nl80211_iftype otype, ntype;
1597 struct net_device *dev = info->user_ptr[1];
1598 u32 _flags, *flags = NULL;
1599 bool change = false;
1601 memset(¶ms, 0, sizeof(params));
1603 otype = ntype = dev->ieee80211_ptr->iftype;
1605 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1606 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1609 if (ntype > NL80211_IFTYPE_MAX)
1613 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1614 struct wireless_dev *wdev = dev->ieee80211_ptr;
1616 if (ntype != NL80211_IFTYPE_MESH_POINT)
1618 if (netif_running(dev))
1622 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1623 IEEE80211_MAX_MESH_ID_LEN);
1624 wdev->mesh_id_up_len =
1625 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1626 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1627 wdev->mesh_id_up_len);
1631 if (info->attrs[NL80211_ATTR_4ADDR]) {
1632 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1634 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1638 params.use_4addr = -1;
1641 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1642 if (ntype != NL80211_IFTYPE_MONITOR)
1644 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1654 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1658 if (!err && params.use_4addr != -1)
1659 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1664 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1667 struct vif_params params;
1668 struct net_device *dev;
1670 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1673 memset(¶ms, 0, sizeof(params));
1675 if (!info->attrs[NL80211_ATTR_IFNAME])
1678 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1679 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1680 if (type > NL80211_IFTYPE_MAX)
1684 if (!rdev->ops->add_virtual_intf ||
1685 !(rdev->wiphy.interface_modes & (1 << type)))
1688 if (info->attrs[NL80211_ATTR_4ADDR]) {
1689 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1690 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1695 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1696 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1698 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1699 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1700 type, err ? NULL : &flags, ¶ms);
1702 return PTR_ERR(dev);
1704 if (type == NL80211_IFTYPE_MESH_POINT &&
1705 info->attrs[NL80211_ATTR_MESH_ID]) {
1706 struct wireless_dev *wdev = dev->ieee80211_ptr;
1709 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1710 IEEE80211_MAX_MESH_ID_LEN);
1711 wdev->mesh_id_up_len =
1712 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1713 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1714 wdev->mesh_id_up_len);
1721 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1724 struct net_device *dev = info->user_ptr[1];
1726 if (!rdev->ops->del_virtual_intf)
1729 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1732 struct get_key_cookie {
1733 struct sk_buff *msg;
1738 static void get_key_callback(void *c, struct key_params *params)
1741 struct get_key_cookie *cookie = c;
1744 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1745 params->key_len, params->key);
1748 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1749 params->seq_len, params->seq);
1752 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1755 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1757 goto nla_put_failure;
1760 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1761 params->key_len, params->key);
1764 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1765 params->seq_len, params->seq);
1768 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1771 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1773 nla_nest_end(cookie->msg, key);
1780 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1782 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1784 struct net_device *dev = info->user_ptr[1];
1786 const u8 *mac_addr = NULL;
1788 struct get_key_cookie cookie = {
1792 struct sk_buff *msg;
1794 if (info->attrs[NL80211_ATTR_KEY_IDX])
1795 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1800 if (info->attrs[NL80211_ATTR_MAC])
1801 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1803 pairwise = !!mac_addr;
1804 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1805 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1806 if (kt >= NUM_NL80211_KEYTYPES)
1808 if (kt != NL80211_KEYTYPE_GROUP &&
1809 kt != NL80211_KEYTYPE_PAIRWISE)
1811 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1814 if (!rdev->ops->get_key)
1817 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1820 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1824 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1825 NL80211_CMD_NEW_KEY);
1827 return PTR_ERR(hdr);
1830 cookie.idx = key_idx;
1832 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1833 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1835 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1837 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1838 mac_addr, &cookie, get_key_callback);
1844 goto nla_put_failure;
1846 genlmsg_end(msg, hdr);
1847 return genlmsg_reply(msg, info);
1856 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1858 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1859 struct key_parse key;
1861 struct net_device *dev = info->user_ptr[1];
1863 err = nl80211_parse_key(info, &key);
1870 /* only support setting default key */
1871 if (!key.def && !key.defmgmt)
1874 wdev_lock(dev->ieee80211_ptr);
1877 if (!rdev->ops->set_default_key) {
1882 err = nl80211_key_allowed(dev->ieee80211_ptr);
1886 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1887 key.def_uni, key.def_multi);
1892 #ifdef CONFIG_CFG80211_WEXT
1893 dev->ieee80211_ptr->wext.default_key = key.idx;
1896 if (key.def_uni || !key.def_multi) {
1901 if (!rdev->ops->set_default_mgmt_key) {
1906 err = nl80211_key_allowed(dev->ieee80211_ptr);
1910 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1915 #ifdef CONFIG_CFG80211_WEXT
1916 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1921 wdev_unlock(dev->ieee80211_ptr);
1926 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1928 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1930 struct net_device *dev = info->user_ptr[1];
1931 struct key_parse key;
1932 const u8 *mac_addr = NULL;
1934 err = nl80211_parse_key(info, &key);
1941 if (info->attrs[NL80211_ATTR_MAC])
1942 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1944 if (key.type == -1) {
1946 key.type = NL80211_KEYTYPE_PAIRWISE;
1948 key.type = NL80211_KEYTYPE_GROUP;
1952 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1953 key.type != NL80211_KEYTYPE_GROUP)
1956 if (!rdev->ops->add_key)
1959 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1960 key.type == NL80211_KEYTYPE_PAIRWISE,
1964 wdev_lock(dev->ieee80211_ptr);
1965 err = nl80211_key_allowed(dev->ieee80211_ptr);
1967 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1968 key.type == NL80211_KEYTYPE_PAIRWISE,
1970 wdev_unlock(dev->ieee80211_ptr);
1975 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1979 struct net_device *dev = info->user_ptr[1];
1980 u8 *mac_addr = NULL;
1981 struct key_parse key;
1983 err = nl80211_parse_key(info, &key);
1987 if (info->attrs[NL80211_ATTR_MAC])
1988 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1990 if (key.type == -1) {
1992 key.type = NL80211_KEYTYPE_PAIRWISE;
1994 key.type = NL80211_KEYTYPE_GROUP;
1998 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1999 key.type != NL80211_KEYTYPE_GROUP)
2002 if (!rdev->ops->del_key)
2005 wdev_lock(dev->ieee80211_ptr);
2006 err = nl80211_key_allowed(dev->ieee80211_ptr);
2008 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
2009 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2013 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2014 key.type == NL80211_KEYTYPE_PAIRWISE,
2017 #ifdef CONFIG_CFG80211_WEXT
2019 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2020 dev->ieee80211_ptr->wext.default_key = -1;
2021 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2022 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2025 wdev_unlock(dev->ieee80211_ptr);
2030 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2032 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2033 struct beacon_parameters *info);
2034 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2035 struct net_device *dev = info->user_ptr[1];
2036 struct wireless_dev *wdev = dev->ieee80211_ptr;
2037 struct beacon_parameters params;
2038 int haveinfo = 0, err;
2040 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2041 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2042 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2043 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2046 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2047 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2050 memset(¶ms, 0, sizeof(params));
2052 switch (info->genlhdr->cmd) {
2053 case NL80211_CMD_NEW_BEACON:
2054 /* these are required for NEW_BEACON */
2055 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2056 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2057 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2061 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2062 params.dtim_period =
2063 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2065 err = cfg80211_validate_beacon_int(rdev, params.interval);
2070 * In theory, some of these attributes could be required for
2071 * NEW_BEACON, but since they were not used when the command was
2072 * originally added, keep them optional for old user space
2073 * programs to work with drivers that do not need the additional
2076 if (info->attrs[NL80211_ATTR_SSID]) {
2077 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2079 nla_len(info->attrs[NL80211_ATTR_SSID]);
2080 if (params.ssid_len == 0 ||
2081 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2085 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2086 params.hidden_ssid = nla_get_u32(
2087 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2088 if (params.hidden_ssid !=
2089 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2090 params.hidden_ssid !=
2091 NL80211_HIDDEN_SSID_ZERO_LEN &&
2092 params.hidden_ssid !=
2093 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2097 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2099 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2100 params.auth_type = nla_get_u32(
2101 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2102 if (!nl80211_valid_auth_type(params.auth_type))
2105 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2107 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2108 NL80211_MAX_NR_CIPHER_SUITES);
2112 call = rdev->ops->add_beacon;
2114 case NL80211_CMD_SET_BEACON:
2115 call = rdev->ops->set_beacon;
2125 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2126 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2128 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2132 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2133 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2135 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2142 if (info->attrs[NL80211_ATTR_IE]) {
2143 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2144 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2147 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2148 params.proberesp_ies =
2149 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2150 params.proberesp_ies_len =
2151 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2154 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2155 params.assocresp_ies =
2156 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2157 params.assocresp_ies_len =
2158 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2161 err = call(&rdev->wiphy, dev, ¶ms);
2162 if (!err && params.interval)
2163 wdev->beacon_interval = params.interval;
2167 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2170 struct net_device *dev = info->user_ptr[1];
2171 struct wireless_dev *wdev = dev->ieee80211_ptr;
2174 if (!rdev->ops->del_beacon)
2177 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2178 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2181 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2183 wdev->beacon_interval = 0;
2187 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2188 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2189 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2190 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2191 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2192 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2195 static int parse_station_flags(struct genl_info *info,
2196 struct station_parameters *params)
2198 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2203 * Try parsing the new attribute first so userspace
2204 * can specify both for older kernels.
2206 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2208 struct nl80211_sta_flag_update *sta_flags;
2210 sta_flags = nla_data(nla);
2211 params->sta_flags_mask = sta_flags->mask;
2212 params->sta_flags_set = sta_flags->set;
2213 if ((params->sta_flags_mask |
2214 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2219 /* if present, parse the old attribute */
2221 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2225 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2226 nla, sta_flags_policy))
2229 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2230 params->sta_flags_mask &= ~1;
2232 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2234 params->sta_flags_set |= (1<<flag);
2239 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2242 struct nlattr *rate;
2245 rate = nla_nest_start(msg, attr);
2247 goto nla_put_failure;
2249 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2250 bitrate = cfg80211_calculate_bitrate(info);
2252 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2254 if (info->flags & RATE_INFO_FLAGS_MCS)
2255 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2256 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2257 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2258 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2259 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2261 nla_nest_end(msg, rate);
2268 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2269 int flags, struct net_device *dev,
2270 const u8 *mac_addr, struct station_info *sinfo)
2273 struct nlattr *sinfoattr, *bss_param;
2275 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2279 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2280 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2282 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2284 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2286 goto nla_put_failure;
2287 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2288 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2289 sinfo->connected_time);
2290 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2291 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2292 sinfo->inactive_time);
2293 if (sinfo->filled & STATION_INFO_RX_BYTES)
2294 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2296 if (sinfo->filled & STATION_INFO_TX_BYTES)
2297 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2299 if (sinfo->filled & STATION_INFO_LLID)
2300 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2302 if (sinfo->filled & STATION_INFO_PLID)
2303 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2305 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2306 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2307 sinfo->plink_state);
2308 if (sinfo->filled & STATION_INFO_SIGNAL)
2309 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2311 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2312 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2314 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2315 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2316 NL80211_STA_INFO_TX_BITRATE))
2317 goto nla_put_failure;
2319 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2320 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2321 NL80211_STA_INFO_RX_BITRATE))
2322 goto nla_put_failure;
2324 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2325 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2327 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2328 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2330 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2331 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2333 if (sinfo->filled & STATION_INFO_TX_FAILED)
2334 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2336 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2337 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2339 goto nla_put_failure;
2341 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2342 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2343 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2344 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2345 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2347 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2348 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2349 sinfo->bss_param.dtim_period);
2350 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2351 sinfo->bss_param.beacon_interval);
2353 nla_nest_end(msg, bss_param);
2355 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2356 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2357 sizeof(struct nl80211_sta_flag_update),
2359 nla_nest_end(msg, sinfoattr);
2361 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
2362 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2363 sinfo->assoc_req_ies);
2365 return genlmsg_end(msg, hdr);
2368 genlmsg_cancel(msg, hdr);
2372 static int nl80211_dump_station(struct sk_buff *skb,
2373 struct netlink_callback *cb)
2375 struct station_info sinfo;
2376 struct cfg80211_registered_device *dev;
2377 struct net_device *netdev;
2378 u8 mac_addr[ETH_ALEN];
2379 int sta_idx = cb->args[1];
2382 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2386 if (!dev->ops->dump_station) {
2392 memset(&sinfo, 0, sizeof(sinfo));
2393 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2400 if (nl80211_send_station(skb,
2401 NETLINK_CB(cb->skb).pid,
2402 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2412 cb->args[1] = sta_idx;
2415 nl80211_finish_netdev_dump(dev);
2420 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2423 struct net_device *dev = info->user_ptr[1];
2424 struct station_info sinfo;
2425 struct sk_buff *msg;
2426 u8 *mac_addr = NULL;
2429 memset(&sinfo, 0, sizeof(sinfo));
2431 if (!info->attrs[NL80211_ATTR_MAC])
2434 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2436 if (!rdev->ops->get_station)
2439 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2443 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2447 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2448 dev, mac_addr, &sinfo) < 0) {
2453 return genlmsg_reply(msg, info);
2457 * Get vlan interface making sure it is running and on the right wiphy.
2459 static int get_vlan(struct genl_info *info,
2460 struct cfg80211_registered_device *rdev,
2461 struct net_device **vlan)
2463 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2467 *vlan = dev_get_by_index(genl_info_net(info),
2468 nla_get_u32(vlanattr));
2471 if (!(*vlan)->ieee80211_ptr)
2473 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2475 if (!netif_running(*vlan))
2481 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2485 struct net_device *dev = info->user_ptr[1];
2486 struct station_parameters params;
2487 u8 *mac_addr = NULL;
2489 memset(¶ms, 0, sizeof(params));
2491 params.listen_interval = -1;
2492 params.plink_state = -1;
2494 if (info->attrs[NL80211_ATTR_STA_AID])
2497 if (!info->attrs[NL80211_ATTR_MAC])
2500 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2502 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2503 params.supported_rates =
2504 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2505 params.supported_rates_len =
2506 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2509 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2510 params.listen_interval =
2511 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2513 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2515 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2517 if (parse_station_flags(info, ¶ms))
2520 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2521 params.plink_action =
2522 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2524 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2525 params.plink_state =
2526 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2528 err = get_vlan(info, rdev, ¶ms.vlan);
2532 /* validate settings */
2535 switch (dev->ieee80211_ptr->iftype) {
2536 case NL80211_IFTYPE_AP:
2537 case NL80211_IFTYPE_AP_VLAN:
2538 case NL80211_IFTYPE_P2P_GO:
2539 /* disallow mesh-specific things */
2540 if (params.plink_action)
2543 case NL80211_IFTYPE_P2P_CLIENT:
2544 case NL80211_IFTYPE_STATION:
2545 /* disallow things sta doesn't support */
2546 if (params.plink_action)
2550 if (params.supported_rates &&
2551 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2555 if (params.listen_interval >= 0)
2557 if (params.sta_flags_mask &
2558 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2559 BIT(NL80211_STA_FLAG_TDLS_PEER)))
2561 /* can't change the TDLS bit */
2562 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2563 (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2566 case NL80211_IFTYPE_MESH_POINT:
2567 /* disallow things mesh doesn't support */
2572 if (params.listen_interval >= 0)
2574 if (params.sta_flags_mask &
2575 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2576 BIT(NL80211_STA_FLAG_MFP) |
2577 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2587 if (!rdev->ops->change_station) {
2592 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2596 dev_put(params.vlan);
2601 static struct nla_policy
2602 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2603 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2604 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2607 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2611 struct net_device *dev = info->user_ptr[1];
2612 struct station_parameters params;
2613 u8 *mac_addr = NULL;
2615 memset(¶ms, 0, sizeof(params));
2617 if (!info->attrs[NL80211_ATTR_MAC])
2620 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2623 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2626 if (!info->attrs[NL80211_ATTR_STA_AID])
2629 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2630 params.supported_rates =
2631 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2632 params.supported_rates_len =
2633 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2634 params.listen_interval =
2635 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2637 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2638 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2641 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2643 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2645 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2646 params.plink_action =
2647 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2649 if (parse_station_flags(info, ¶ms))
2652 /* HT requires QoS, but if we don't have that just ignore HT/VHT
2653 * as userspace might just pass through the capabilities from the IEs
2654 * directly, rather than enforcing this restriction and returning an
2655 * error in this case.
2657 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
2658 params.ht_capa = NULL;
2660 /* parse WME attributes if sta is WME capable */
2661 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2662 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2663 info->attrs[NL80211_ATTR_STA_WME]) {
2664 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2667 nla = info->attrs[NL80211_ATTR_STA_WME];
2668 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2669 nl80211_sta_wme_policy);
2673 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2674 params.uapsd_queues =
2675 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2676 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2679 if (tb[NL80211_STA_WME_MAX_SP])
2681 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2683 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2686 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2689 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2690 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2691 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2692 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
2693 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
2697 * Only managed stations can add TDLS peers, and only when the
2698 * wiphy supports external TDLS setup.
2700 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION &&
2701 !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2702 (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2703 (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
2706 err = get_vlan(info, rdev, ¶ms.vlan);
2710 /* validate settings */
2713 if (!rdev->ops->add_station) {
2718 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2722 dev_put(params.vlan);
2726 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2728 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2729 struct net_device *dev = info->user_ptr[1];
2730 u8 *mac_addr = NULL;
2732 if (info->attrs[NL80211_ATTR_MAC])
2733 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2735 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2736 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2737 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2738 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2741 if (!rdev->ops->del_station)
2744 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2747 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2748 int flags, struct net_device *dev,
2749 u8 *dst, u8 *next_hop,
2750 struct mpath_info *pinfo)
2753 struct nlattr *pinfoattr;
2755 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2759 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2760 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2761 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2763 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2765 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2767 goto nla_put_failure;
2768 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2769 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2771 if (pinfo->filled & MPATH_INFO_SN)
2772 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2774 if (pinfo->filled & MPATH_INFO_METRIC)
2775 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2777 if (pinfo->filled & MPATH_INFO_EXPTIME)
2778 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2780 if (pinfo->filled & MPATH_INFO_FLAGS)
2781 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2783 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2784 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2785 pinfo->discovery_timeout);
2786 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2787 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2788 pinfo->discovery_retries);
2790 nla_nest_end(msg, pinfoattr);
2792 return genlmsg_end(msg, hdr);
2795 genlmsg_cancel(msg, hdr);
2799 static int nl80211_dump_mpath(struct sk_buff *skb,
2800 struct netlink_callback *cb)
2802 struct mpath_info pinfo;
2803 struct cfg80211_registered_device *dev;
2804 struct net_device *netdev;
2806 u8 next_hop[ETH_ALEN];
2807 int path_idx = cb->args[1];
2810 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2814 if (!dev->ops->dump_mpath) {
2819 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2825 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2826 dst, next_hop, &pinfo);
2832 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2833 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2834 netdev, dst, next_hop,
2843 cb->args[1] = path_idx;
2846 nl80211_finish_netdev_dump(dev);
2850 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2854 struct net_device *dev = info->user_ptr[1];
2855 struct mpath_info pinfo;
2856 struct sk_buff *msg;
2858 u8 next_hop[ETH_ALEN];
2860 memset(&pinfo, 0, sizeof(pinfo));
2862 if (!info->attrs[NL80211_ATTR_MAC])
2865 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2867 if (!rdev->ops->get_mpath)
2870 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2873 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2877 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2881 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2882 dev, dst, next_hop, &pinfo) < 0) {
2887 return genlmsg_reply(msg, info);
2890 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2893 struct net_device *dev = info->user_ptr[1];
2895 u8 *next_hop = NULL;
2897 if (!info->attrs[NL80211_ATTR_MAC])
2900 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2903 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2904 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2906 if (!rdev->ops->change_mpath)
2909 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2912 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2915 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2917 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2918 struct net_device *dev = info->user_ptr[1];
2920 u8 *next_hop = NULL;
2922 if (!info->attrs[NL80211_ATTR_MAC])
2925 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2928 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2929 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2931 if (!rdev->ops->add_mpath)
2934 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2937 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2940 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2943 struct net_device *dev = info->user_ptr[1];
2946 if (info->attrs[NL80211_ATTR_MAC])
2947 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2949 if (!rdev->ops->del_mpath)
2952 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2955 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2958 struct net_device *dev = info->user_ptr[1];
2959 struct bss_parameters params;
2961 memset(¶ms, 0, sizeof(params));
2962 /* default to not changing parameters */
2963 params.use_cts_prot = -1;
2964 params.use_short_preamble = -1;
2965 params.use_short_slot_time = -1;
2966 params.ap_isolate = -1;
2967 params.ht_opmode = -1;
2969 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2970 params.use_cts_prot =
2971 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2972 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2973 params.use_short_preamble =
2974 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2975 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2976 params.use_short_slot_time =
2977 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2978 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2979 params.basic_rates =
2980 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2981 params.basic_rates_len =
2982 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2984 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2985 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2986 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2988 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
2990 if (!rdev->ops->change_bss)
2993 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2994 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2997 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3000 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3001 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3002 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3003 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3004 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3005 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3006 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3009 static int parse_reg_rule(struct nlattr *tb[],
3010 struct ieee80211_reg_rule *reg_rule)
3012 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3013 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3015 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3017 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3019 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3021 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3023 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3026 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3028 freq_range->start_freq_khz =
3029 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3030 freq_range->end_freq_khz =
3031 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3032 freq_range->max_bandwidth_khz =
3033 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3035 power_rule->max_eirp =
3036 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3038 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3039 power_rule->max_antenna_gain =
3040 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3045 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3051 * You should only get this when cfg80211 hasn't yet initialized
3052 * completely when built-in to the kernel right between the time
3053 * window between nl80211_init() and regulatory_init(), if that is
3056 mutex_lock(&cfg80211_mutex);
3057 if (unlikely(!cfg80211_regdomain)) {
3058 mutex_unlock(&cfg80211_mutex);
3059 return -EINPROGRESS;
3061 mutex_unlock(&cfg80211_mutex);
3063 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3066 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3068 r = regulatory_hint_user(data);
3073 static int nl80211_get_mesh_config(struct sk_buff *skb,
3074 struct genl_info *info)
3076 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3077 struct net_device *dev = info->user_ptr[1];
3078 struct wireless_dev *wdev = dev->ieee80211_ptr;
3079 struct mesh_config cur_params;
3082 struct nlattr *pinfoattr;
3083 struct sk_buff *msg;
3085 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3088 if (!rdev->ops->get_mesh_config)
3092 /* If not connected, get default parameters */
3093 if (!wdev->mesh_id_len)
3094 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3096 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3103 /* Draw up a netlink message to send back */
3104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3107 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3108 NL80211_CMD_GET_MESH_CONFIG);
3111 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3113 goto nla_put_failure;
3114 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3115 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3116 cur_params.dot11MeshRetryTimeout);
3117 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3118 cur_params.dot11MeshConfirmTimeout);
3119 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3120 cur_params.dot11MeshHoldingTimeout);
3121 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3122 cur_params.dot11MeshMaxPeerLinks);
3123 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3124 cur_params.dot11MeshMaxRetries);
3125 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3126 cur_params.dot11MeshTTL);
3127 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3128 cur_params.element_ttl);
3129 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3130 cur_params.auto_open_plinks);
3131 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3132 cur_params.dot11MeshHWMPmaxPREQretries);
3133 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3134 cur_params.path_refresh_time);
3135 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3136 cur_params.min_discovery_timeout);
3137 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3138 cur_params.dot11MeshHWMPactivePathTimeout);
3139 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3140 cur_params.dot11MeshHWMPpreqMinInterval);
3141 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3142 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
3143 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3144 cur_params.dot11MeshHWMPRootMode);
3145 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3146 cur_params.dot11MeshHWMPRannInterval);
3147 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3148 cur_params.dot11MeshGateAnnouncementProtocol);
3149 nla_nest_end(msg, pinfoattr);
3150 genlmsg_end(msg, hdr);
3151 return genlmsg_reply(msg, info);
3154 genlmsg_cancel(msg, hdr);
3160 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3161 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3162 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3163 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3164 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3165 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3166 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3167 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3168 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3170 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3171 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3172 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3173 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3174 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3175 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3176 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3177 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3178 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3181 static const struct nla_policy
3182 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3183 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3184 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3185 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3186 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3187 .len = IEEE80211_MAX_DATA_LEN },
3188 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3191 static int nl80211_parse_mesh_config(struct genl_info *info,
3192 struct mesh_config *cfg,
3195 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3198 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3200 if (table[attr_num]) {\
3201 cfg->param = nla_fn(table[attr_num]); \
3202 mask |= (1 << (attr_num - 1)); \
3207 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3209 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3210 info->attrs[NL80211_ATTR_MESH_CONFIG],
3211 nl80211_meshconf_params_policy))
3214 /* This makes sure that there aren't more than 32 mesh config
3215 * parameters (otherwise our bitfield scheme would not work.) */
3216 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3218 /* Fill in the params struct */
3219 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3220 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3221 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3222 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3223 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3224 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3225 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3226 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3227 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3228 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3230 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3231 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3232 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3234 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3236 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3239 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3240 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3241 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3243 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3244 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3246 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3247 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3249 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3250 dot11MeshHWMPnetDiameterTraversalTime,
3251 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3253 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3254 dot11MeshHWMPRootMode, mask,
3255 NL80211_MESHCONF_HWMP_ROOTMODE,
3257 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3258 dot11MeshHWMPRannInterval, mask,
3259 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3261 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3262 dot11MeshGateAnnouncementProtocol, mask,
3263 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3270 #undef FILL_IN_MESH_PARAM_IF_SET
3273 static int nl80211_parse_mesh_setup(struct genl_info *info,
3274 struct mesh_setup *setup)
3276 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3278 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3280 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3281 info->attrs[NL80211_ATTR_MESH_SETUP],
3282 nl80211_mesh_setup_params_policy))
3285 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3286 setup->path_sel_proto =
3287 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3288 IEEE80211_PATH_PROTOCOL_VENDOR :
3289 IEEE80211_PATH_PROTOCOL_HWMP;
3291 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3292 setup->path_metric =
3293 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3294 IEEE80211_PATH_METRIC_VENDOR :
3295 IEEE80211_PATH_METRIC_AIRTIME;
3298 if (tb[NL80211_MESH_SETUP_IE]) {
3299 struct nlattr *ieattr =
3300 tb[NL80211_MESH_SETUP_IE];
3301 if (!is_valid_ie_attr(ieattr))
3303 setup->ie = nla_data(ieattr);
3304 setup->ie_len = nla_len(ieattr);
3306 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3307 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3312 static int nl80211_update_mesh_config(struct sk_buff *skb,
3313 struct genl_info *info)
3315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3316 struct net_device *dev = info->user_ptr[1];
3317 struct wireless_dev *wdev = dev->ieee80211_ptr;
3318 struct mesh_config cfg;
3322 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3325 if (!rdev->ops->update_mesh_config)
3328 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3333 if (!wdev->mesh_id_len)
3337 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3345 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3347 struct sk_buff *msg;
3349 struct nlattr *nl_reg_rules;
3353 mutex_lock(&cfg80211_mutex);
3355 if (!cfg80211_regdomain)
3358 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3364 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3365 NL80211_CMD_GET_REG);
3369 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3370 cfg80211_regdomain->alpha2);
3372 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3374 goto nla_put_failure;
3376 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3377 struct nlattr *nl_reg_rule;
3378 const struct ieee80211_reg_rule *reg_rule;
3379 const struct ieee80211_freq_range *freq_range;
3380 const struct ieee80211_power_rule *power_rule;
3382 reg_rule = &cfg80211_regdomain->reg_rules[i];
3383 freq_range = ®_rule->freq_range;
3384 power_rule = ®_rule->power_rule;
3386 nl_reg_rule = nla_nest_start(msg, i);
3388 goto nla_put_failure;
3390 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3392 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3393 freq_range->start_freq_khz);
3394 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3395 freq_range->end_freq_khz);
3396 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3397 freq_range->max_bandwidth_khz);
3398 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3399 power_rule->max_antenna_gain);
3400 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3401 power_rule->max_eirp);
3403 nla_nest_end(msg, nl_reg_rule);
3406 nla_nest_end(msg, nl_reg_rules);
3408 genlmsg_end(msg, hdr);
3409 err = genlmsg_reply(msg, info);
3413 genlmsg_cancel(msg, hdr);
3418 mutex_unlock(&cfg80211_mutex);
3422 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3424 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3425 struct nlattr *nl_reg_rule;
3426 char *alpha2 = NULL;
3427 int rem_reg_rules = 0, r = 0;
3428 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3429 struct ieee80211_regdomain *rd = NULL;
3431 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3434 if (!info->attrs[NL80211_ATTR_REG_RULES])
3437 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3439 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3442 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3446 mutex_lock(&cfg80211_mutex);
3448 if (!reg_is_valid_request(alpha2)) {
3453 size_of_regd = sizeof(struct ieee80211_regdomain) +
3454 (num_rules * sizeof(struct ieee80211_reg_rule));
3456 rd = kzalloc(size_of_regd, GFP_KERNEL);
3462 rd->n_reg_rules = num_rules;
3463 rd->alpha2[0] = alpha2[0];
3464 rd->alpha2[1] = alpha2[1];
3466 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3468 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3469 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3471 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3477 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3483 BUG_ON(rule_idx != num_rules);
3487 mutex_unlock(&cfg80211_mutex);
3492 mutex_unlock(&cfg80211_mutex);
3497 static int validate_scan_freqs(struct nlattr *freqs)
3499 struct nlattr *attr1, *attr2;
3500 int n_channels = 0, tmp1, tmp2;
3502 nla_for_each_nested(attr1, freqs, tmp1)
3503 if (nla_len(attr1) != sizeof(u32))
3506 nla_for_each_nested(attr1, freqs, tmp1) {
3509 * Some hardware has a limited channel list for
3510 * scanning, and it is pretty much nonsensical
3511 * to scan for a channel twice, so disallow that
3512 * and don't require drivers to check that the
3513 * channel list they get isn't longer than what
3514 * they can scan, as long as they can scan all
3515 * the channels they registered at once.
3517 nla_for_each_nested(attr2, freqs, tmp2)
3518 if (attr1 != attr2 &&
3519 nla_get_u32(attr1) == nla_get_u32(attr2))
3526 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3529 struct net_device *dev = info->user_ptr[1];
3530 struct cfg80211_scan_request *request;
3531 struct nlattr *attr;
3532 struct wiphy *wiphy;
3533 int err, tmp, n_ssids = 0, n_channels, i;
3536 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3539 wiphy = &rdev->wiphy;
3541 if (!rdev->ops->scan)
3547 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3548 n_channels = validate_scan_freqs(
3549 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3553 enum ieee80211_band band;
3556 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3557 if (wiphy->bands[band])
3558 n_channels += wiphy->bands[band]->n_channels;
3561 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3562 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3565 if (n_ssids > wiphy->max_scan_ssids)
3568 if (info->attrs[NL80211_ATTR_IE])
3569 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3573 if (ie_len > wiphy->max_scan_ie_len)
3576 request = kzalloc(sizeof(*request)
3577 + sizeof(*request->ssids) * n_ssids
3578 + sizeof(*request->channels) * n_channels
3579 + ie_len, GFP_KERNEL);
3584 request->ssids = (void *)&request->channels[n_channels];
3585 request->n_ssids = n_ssids;
3588 request->ie = (void *)(request->ssids + n_ssids);
3590 request->ie = (void *)(request->channels + n_channels);
3594 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3595 /* user specified, bail out if channel not found */
3596 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3597 struct ieee80211_channel *chan;
3599 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3606 /* ignore disabled channels */
3607 if (chan->flags & IEEE80211_CHAN_DISABLED)
3610 request->channels[i] = chan;
3614 enum ieee80211_band band;
3617 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3619 if (!wiphy->bands[band])
3621 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3622 struct ieee80211_channel *chan;
3624 chan = &wiphy->bands[band]->channels[j];
3626 if (chan->flags & IEEE80211_CHAN_DISABLED)
3629 request->channels[i] = chan;
3640 request->n_channels = i;
3643 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3644 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3645 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3649 request->ssids[i].ssid_len = nla_len(attr);
3650 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3655 if (info->attrs[NL80211_ATTR_IE]) {
3656 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3657 memcpy((void *)request->ie,
3658 nla_data(info->attrs[NL80211_ATTR_IE]),
3662 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3663 if (wiphy->bands[i])
3665 (1 << wiphy->bands[i]->n_bitrates) - 1;
3667 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3668 nla_for_each_nested(attr,
3669 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3671 enum ieee80211_band band = nla_type(attr);
3673 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3677 err = ieee80211_get_ratemask(wiphy->bands[band],
3680 &request->rates[band]);
3687 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3690 request->wiphy = &rdev->wiphy;
3692 rdev->scan_req = request;
3693 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3696 nl80211_send_scan_start(rdev, dev);
3700 rdev->scan_req = NULL;
3707 static int nl80211_start_sched_scan(struct sk_buff *skb,
3708 struct genl_info *info)
3710 struct cfg80211_sched_scan_request *request;
3711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3712 struct net_device *dev = info->user_ptr[1];
3713 struct nlattr *attr;
3714 struct wiphy *wiphy;
3715 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
3717 enum ieee80211_band band;
3719 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
3721 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3722 !rdev->ops->sched_scan_start)
3725 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3728 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3731 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3735 wiphy = &rdev->wiphy;
3737 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3738 n_channels = validate_scan_freqs(
3739 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3745 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3746 if (wiphy->bands[band])
3747 n_channels += wiphy->bands[band]->n_channels;
3750 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3751 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3755 if (n_ssids > wiphy->max_sched_scan_ssids)
3758 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3759 nla_for_each_nested(attr,
3760 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3764 if (n_match_sets > wiphy->max_match_sets)
3767 if (info->attrs[NL80211_ATTR_IE])
3768 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3772 if (ie_len > wiphy->max_sched_scan_ie_len)
3775 mutex_lock(&rdev->sched_scan_mtx);
3777 if (rdev->sched_scan_req) {
3782 request = kzalloc(sizeof(*request)
3783 + sizeof(*request->ssids) * n_ssids
3784 + sizeof(*request->match_sets) * n_match_sets
3785 + sizeof(*request->channels) * n_channels
3786 + ie_len, GFP_KERNEL);
3793 request->ssids = (void *)&request->channels[n_channels];
3794 request->n_ssids = n_ssids;
3797 request->ie = (void *)(request->ssids + n_ssids);
3799 request->ie = (void *)(request->channels + n_channels);
3804 request->match_sets = (void *)(request->ie + ie_len);
3805 else if (request->ssids)
3806 request->match_sets =
3807 (void *)(request->ssids + n_ssids);
3809 request->match_sets =
3810 (void *)(request->channels + n_channels);
3812 request->n_match_sets = n_match_sets;
3815 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3816 /* user specified, bail out if channel not found */
3817 nla_for_each_nested(attr,
3818 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3820 struct ieee80211_channel *chan;
3822 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3829 /* ignore disabled channels */
3830 if (chan->flags & IEEE80211_CHAN_DISABLED)
3833 request->channels[i] = chan;
3838 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3840 if (!wiphy->bands[band])
3842 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3843 struct ieee80211_channel *chan;
3845 chan = &wiphy->bands[band]->channels[j];
3847 if (chan->flags & IEEE80211_CHAN_DISABLED)
3850 request->channels[i] = chan;
3861 request->n_channels = i;
3864 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3865 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3867 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3871 request->ssids[i].ssid_len = nla_len(attr);
3872 memcpy(request->ssids[i].ssid, nla_data(attr),
3879 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3880 nla_for_each_nested(attr,
3881 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3883 struct nlattr *ssid;
3885 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3886 nla_data(attr), nla_len(attr),
3887 nl80211_match_policy);
3888 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3890 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3894 memcpy(request->match_sets[i].ssid.ssid,
3895 nla_data(ssid), nla_len(ssid));
3896 request->match_sets[i].ssid.ssid_len =
3903 if (info->attrs[NL80211_ATTR_IE]) {
3904 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3905 memcpy((void *)request->ie,
3906 nla_data(info->attrs[NL80211_ATTR_IE]),
3911 request->wiphy = &rdev->wiphy;
3912 request->interval = interval;
3914 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3916 rdev->sched_scan_req = request;
3917 nl80211_send_sched_scan(rdev, dev,
3918 NL80211_CMD_START_SCHED_SCAN);
3925 mutex_unlock(&rdev->sched_scan_mtx);
3929 static int nl80211_stop_sched_scan(struct sk_buff *skb,
3930 struct genl_info *info)
3932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3935 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3936 !rdev->ops->sched_scan_stop)
3939 mutex_lock(&rdev->sched_scan_mtx);
3940 err = __cfg80211_stop_sched_scan(rdev, false);
3941 mutex_unlock(&rdev->sched_scan_mtx);
3946 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3948 struct cfg80211_registered_device *rdev,
3949 struct wireless_dev *wdev,
3950 struct cfg80211_internal_bss *intbss)
3952 struct cfg80211_bss *res = &intbss->pub;
3957 ASSERT_WDEV_LOCK(wdev);
3959 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
3960 NL80211_CMD_NEW_SCAN_RESULTS);
3964 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3966 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3967 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3969 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3971 goto nla_put_failure;
3972 if (!is_zero_ether_addr(res->bssid))
3973 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3974 if (res->information_elements && res->len_information_elements)
3975 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3976 res->len_information_elements,
3977 res->information_elements);
3978 if (res->beacon_ies && res->len_beacon_ies &&
3979 res->beacon_ies != res->information_elements)
3980 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3981 res->len_beacon_ies, res->beacon_ies);
3983 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3984 if (res->beacon_interval)
3985 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3986 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3987 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3988 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3989 jiffies_to_msecs(jiffies - intbss->ts));
3991 switch (rdev->wiphy.signal_type) {
3992 case CFG80211_SIGNAL_TYPE_MBM:
3993 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3995 case CFG80211_SIGNAL_TYPE_UNSPEC:
3996 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4002 switch (wdev->iftype) {
4003 case NL80211_IFTYPE_P2P_CLIENT:
4004 case NL80211_IFTYPE_STATION:
4005 if (intbss == wdev->current_bss)
4006 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4007 NL80211_BSS_STATUS_ASSOCIATED);
4008 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
4009 if (intbss != wdev->auth_bsses[i])
4011 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4012 NL80211_BSS_STATUS_AUTHENTICATED);
4016 case NL80211_IFTYPE_ADHOC:
4017 if (intbss == wdev->current_bss)
4018 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4019 NL80211_BSS_STATUS_IBSS_JOINED);
4025 nla_nest_end(msg, bss);
4027 return genlmsg_end(msg, hdr);
4030 genlmsg_cancel(msg, hdr);
4034 static int nl80211_dump_scan(struct sk_buff *skb,
4035 struct netlink_callback *cb)
4037 struct cfg80211_registered_device *rdev;
4038 struct net_device *dev;
4039 struct cfg80211_internal_bss *scan;
4040 struct wireless_dev *wdev;
4041 int start = cb->args[1], idx = 0;
4044 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4048 wdev = dev->ieee80211_ptr;
4051 spin_lock_bh(&rdev->bss_lock);
4052 cfg80211_bss_expire(rdev);
4054 cb->seq = rdev->bss_generation;
4056 list_for_each_entry(scan, &rdev->bss_list, list) {
4059 if (nl80211_send_bss(skb, cb,
4060 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4061 rdev, wdev, scan) < 0) {
4067 spin_unlock_bh(&rdev->bss_lock);
4071 nl80211_finish_netdev_dump(rdev);
4076 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4077 int flags, struct net_device *dev,
4078 struct survey_info *survey)
4081 struct nlattr *infoattr;
4083 hdr = nl80211hdr_put(msg, pid, seq, flags,
4084 NL80211_CMD_NEW_SURVEY_RESULTS);
4088 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4090 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4092 goto nla_put_failure;
4094 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4095 survey->channel->center_freq);
4096 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4097 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4099 if (survey->filled & SURVEY_INFO_IN_USE)
4100 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
4101 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4102 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4103 survey->channel_time);
4104 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4105 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4106 survey->channel_time_busy);
4107 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4108 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4109 survey->channel_time_ext_busy);
4110 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4111 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4112 survey->channel_time_rx);
4113 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4114 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4115 survey->channel_time_tx);
4117 nla_nest_end(msg, infoattr);
4119 return genlmsg_end(msg, hdr);
4122 genlmsg_cancel(msg, hdr);
4126 static int nl80211_dump_survey(struct sk_buff *skb,
4127 struct netlink_callback *cb)
4129 struct survey_info survey;
4130 struct cfg80211_registered_device *dev;
4131 struct net_device *netdev;
4132 int survey_idx = cb->args[1];
4135 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4139 if (!dev->ops->dump_survey) {
4145 struct ieee80211_channel *chan;
4147 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4154 /* Survey without a channel doesn't make sense */
4155 if (!survey.channel) {
4160 chan = ieee80211_get_channel(&dev->wiphy,
4161 survey.channel->center_freq);
4162 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4167 if (nl80211_send_survey(skb,
4168 NETLINK_CB(cb->skb).pid,
4169 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4177 cb->args[1] = survey_idx;
4180 nl80211_finish_netdev_dump(dev);
4184 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4186 return auth_type <= NL80211_AUTHTYPE_MAX;
4189 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4191 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4192 NL80211_WPA_VERSION_2));
4195 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4198 struct net_device *dev = info->user_ptr[1];
4199 struct ieee80211_channel *chan;
4200 const u8 *bssid, *ssid, *ie = NULL;
4201 int err, ssid_len, ie_len = 0;
4202 enum nl80211_auth_type auth_type;
4203 struct key_parse key;
4204 bool local_state_change;
4206 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4209 if (!info->attrs[NL80211_ATTR_MAC])
4212 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4215 if (!info->attrs[NL80211_ATTR_SSID])
4218 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4221 err = nl80211_parse_key(info, &key);
4226 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4228 if (!key.p.key || !key.p.key_len)
4230 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4231 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4232 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4233 key.p.key_len != WLAN_KEY_LEN_WEP104))
4245 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4246 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4255 if (!rdev->ops->auth)
4258 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4259 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4262 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4263 chan = ieee80211_get_channel(&rdev->wiphy,
4264 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4265 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4268 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4269 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4271 if (info->attrs[NL80211_ATTR_IE]) {
4272 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4273 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4276 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4277 if (!nl80211_valid_auth_type(auth_type))
4280 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4282 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4283 ssid, ssid_len, ie, ie_len,
4284 key.p.key, key.p.key_len, key.idx,
4285 local_state_change);
4288 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4289 struct genl_info *info,
4290 struct cfg80211_crypto_settings *settings,
4293 memset(settings, 0, sizeof(*settings));
4295 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4297 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4299 proto = nla_get_u16(
4300 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4301 settings->control_port_ethertype = cpu_to_be16(proto);
4302 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4305 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4306 settings->control_port_no_encrypt = true;
4308 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4310 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4314 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4315 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4316 settings->n_ciphers_pairwise = len / sizeof(u32);
4318 if (len % sizeof(u32))
4321 if (settings->n_ciphers_pairwise > cipher_limit)
4324 memcpy(settings->ciphers_pairwise, data, len);
4326 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4327 if (!cfg80211_supported_cipher_suite(
4329 settings->ciphers_pairwise[i]))
4333 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4334 settings->cipher_group =
4335 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4336 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4337 settings->cipher_group))
4341 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4342 settings->wpa_versions =
4343 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4344 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4348 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4352 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4353 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4354 settings->n_akm_suites = len / sizeof(u32);
4356 if (len % sizeof(u32))
4359 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4362 memcpy(settings->akm_suites, data, len);
4368 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4371 struct net_device *dev = info->user_ptr[1];
4372 struct cfg80211_crypto_settings crypto;
4373 struct ieee80211_channel *chan;
4374 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4375 int err, ssid_len, ie_len = 0;
4376 bool use_mfp = false;
4378 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4381 if (!info->attrs[NL80211_ATTR_MAC] ||
4382 !info->attrs[NL80211_ATTR_SSID] ||
4383 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4386 if (!rdev->ops->assoc)
4389 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4390 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4393 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4395 chan = ieee80211_get_channel(&rdev->wiphy,
4396 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4397 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4400 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4401 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4403 if (info->attrs[NL80211_ATTR_IE]) {
4404 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4405 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4408 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4409 enum nl80211_mfp mfp =
4410 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4411 if (mfp == NL80211_MFP_REQUIRED)
4413 else if (mfp != NL80211_MFP_NO)
4417 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4418 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4420 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4422 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4423 ssid, ssid_len, ie, ie_len, use_mfp,
4429 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4432 struct net_device *dev = info->user_ptr[1];
4433 const u8 *ie = NULL, *bssid;
4436 bool local_state_change;
4438 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4441 if (!info->attrs[NL80211_ATTR_MAC])
4444 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4447 if (!rdev->ops->deauth)
4450 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4451 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4454 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4456 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4457 if (reason_code == 0) {
4458 /* Reason Code 0 is reserved */
4462 if (info->attrs[NL80211_ATTR_IE]) {
4463 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4464 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4467 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4469 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4470 local_state_change);
4473 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4476 struct net_device *dev = info->user_ptr[1];
4477 const u8 *ie = NULL, *bssid;
4480 bool local_state_change;
4482 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4485 if (!info->attrs[NL80211_ATTR_MAC])
4488 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4491 if (!rdev->ops->disassoc)
4494 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4495 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4498 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4500 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4501 if (reason_code == 0) {
4502 /* Reason Code 0 is reserved */
4506 if (info->attrs[NL80211_ATTR_IE]) {
4507 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4508 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4511 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4513 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4514 local_state_change);
4518 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4519 int mcast_rate[IEEE80211_NUM_BANDS],
4522 struct wiphy *wiphy = &rdev->wiphy;
4526 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4527 struct ieee80211_supported_band *sband;
4529 sband = wiphy->bands[band];
4533 for (i = 0; i < sband->n_bitrates; i++) {
4534 if (sband->bitrates[i].bitrate == rateval) {
4535 mcast_rate[band] = i + 1;
4545 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4547 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4548 struct net_device *dev = info->user_ptr[1];
4549 struct cfg80211_ibss_params ibss;
4550 struct wiphy *wiphy;
4551 struct cfg80211_cached_keys *connkeys = NULL;
4554 memset(&ibss, 0, sizeof(ibss));
4556 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4559 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4560 !info->attrs[NL80211_ATTR_SSID] ||
4561 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4564 ibss.beacon_interval = 100;
4566 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4567 ibss.beacon_interval =
4568 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4569 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4573 if (!rdev->ops->join_ibss)
4576 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4579 wiphy = &rdev->wiphy;
4581 if (info->attrs[NL80211_ATTR_MAC]) {
4582 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4584 if (!is_valid_ether_addr(ibss.bssid))
4587 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4588 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4590 if (info->attrs[NL80211_ATTR_IE]) {
4591 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4592 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4595 ibss.channel = ieee80211_get_channel(wiphy,
4596 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4597 if (!ibss.channel ||
4598 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4599 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4602 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4603 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4605 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4607 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4609 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4610 struct ieee80211_supported_band *sband =
4611 wiphy->bands[ibss.channel->band];
4614 err = ieee80211_get_ratemask(sband, rates, n_rates,
4620 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4621 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4622 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4625 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4626 connkeys = nl80211_parse_connkeys(rdev,
4627 info->attrs[NL80211_ATTR_KEYS]);
4628 if (IS_ERR(connkeys))
4629 return PTR_ERR(connkeys);
4632 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4638 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4641 struct net_device *dev = info->user_ptr[1];
4643 if (!rdev->ops->leave_ibss)
4646 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4649 return cfg80211_leave_ibss(rdev, dev, false);
4652 #ifdef CONFIG_NL80211_TESTMODE
4653 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4657 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4659 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4662 if (!info->attrs[NL80211_ATTR_TESTDATA])
4666 if (rdev->ops->testmode_cmd) {
4667 rdev->testmode_info = info;
4668 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4669 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4670 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4671 rdev->testmode_info = NULL;
4677 static int nl80211_testmode_dump(struct sk_buff *skb,
4678 struct netlink_callback *cb)
4680 struct cfg80211_registered_device *dev;
4688 * 0 is a valid index, but not valid for args[0],
4689 * so we need to offset by 1.
4691 phy_idx = cb->args[0] - 1;
4693 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4694 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4698 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4700 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4701 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4703 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4707 data = nla_data((void *)cb->args[1]);
4708 data_len = nla_len((void *)cb->args[1]);
4711 mutex_lock(&cfg80211_mutex);
4712 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4714 mutex_unlock(&cfg80211_mutex);
4717 cfg80211_lock_rdev(dev);
4718 mutex_unlock(&cfg80211_mutex);
4720 if (!dev->ops->testmode_dump) {
4726 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4727 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4728 NL80211_CMD_TESTMODE);
4729 struct nlattr *tmdata;
4731 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4732 genlmsg_cancel(skb, hdr);
4736 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4738 genlmsg_cancel(skb, hdr);
4741 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4743 nla_nest_end(skb, tmdata);
4745 if (err == -ENOBUFS || err == -ENOENT) {
4746 genlmsg_cancel(skb, hdr);
4749 genlmsg_cancel(skb, hdr);
4753 genlmsg_end(skb, hdr);
4758 cb->args[0] = phy_idx + 1;
4760 cfg80211_unlock_rdev(dev);
4764 static struct sk_buff *
4765 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4766 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4768 struct sk_buff *skb;
4770 struct nlattr *data;
4772 skb = nlmsg_new(approxlen + 100, gfp);
4776 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4782 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4783 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4785 ((void **)skb->cb)[0] = rdev;
4786 ((void **)skb->cb)[1] = hdr;
4787 ((void **)skb->cb)[2] = data;
4796 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4799 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4801 if (WARN_ON(!rdev->testmode_info))
4804 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4805 rdev->testmode_info->snd_pid,
4806 rdev->testmode_info->snd_seq,
4809 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4811 int cfg80211_testmode_reply(struct sk_buff *skb)
4813 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4814 void *hdr = ((void **)skb->cb)[1];
4815 struct nlattr *data = ((void **)skb->cb)[2];
4817 /* clear CB data for netlink core to own from now on */
4818 memset(skb->cb, 0, sizeof(skb->cb));
4820 if (WARN_ON(!rdev->testmode_info)) {
4825 nla_nest_end(skb, data);
4826 genlmsg_end(skb, hdr);
4827 return genlmsg_reply(skb, rdev->testmode_info);
4829 EXPORT_SYMBOL(cfg80211_testmode_reply);
4831 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4832 int approxlen, gfp_t gfp)
4834 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4836 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4838 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4840 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4842 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4843 void *hdr = ((void **)skb->cb)[1];
4844 struct nlattr *data = ((void **)skb->cb)[2];
4846 /* clear CB data for netlink core to own from now on */
4847 memset(skb->cb, 0, sizeof(skb->cb));
4849 nla_nest_end(skb, data);
4850 genlmsg_end(skb, hdr);
4851 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
4852 nl80211_testmode_mcgrp.id, gfp);
4854 EXPORT_SYMBOL(cfg80211_testmode_event);
4857 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4860 struct net_device *dev = info->user_ptr[1];
4861 struct cfg80211_connect_params connect;
4862 struct wiphy *wiphy;
4863 struct cfg80211_cached_keys *connkeys = NULL;
4866 memset(&connect, 0, sizeof(connect));
4868 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4871 if (!info->attrs[NL80211_ATTR_SSID] ||
4872 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4875 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4877 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4878 if (!nl80211_valid_auth_type(connect.auth_type))
4881 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4883 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4885 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
4886 NL80211_MAX_NR_CIPHER_SUITES);
4890 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4891 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4894 wiphy = &rdev->wiphy;
4896 if (info->attrs[NL80211_ATTR_MAC])
4897 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4898 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4899 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4901 if (info->attrs[NL80211_ATTR_IE]) {
4902 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4903 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4906 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4908 ieee80211_get_channel(wiphy,
4909 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4910 if (!connect.channel ||
4911 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4915 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4916 connkeys = nl80211_parse_connkeys(rdev,
4917 info->attrs[NL80211_ATTR_KEYS]);
4918 if (IS_ERR(connkeys))
4919 return PTR_ERR(connkeys);
4922 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4928 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4931 struct net_device *dev = info->user_ptr[1];
4934 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4935 reason = WLAN_REASON_DEAUTH_LEAVING;
4937 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4942 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4943 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4946 return cfg80211_disconnect(rdev, dev, reason, true);
4949 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4956 if (!info->attrs[NL80211_ATTR_PID])
4959 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4961 net = get_net_ns_by_pid(pid);
4963 return PTR_ERR(net);
4967 /* check if anything to do */
4968 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4969 err = cfg80211_switch_netns(rdev, net);
4975 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4978 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4979 struct cfg80211_pmksa *pmksa) = NULL;
4980 struct net_device *dev = info->user_ptr[1];
4981 struct cfg80211_pmksa pmksa;
4983 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4985 if (!info->attrs[NL80211_ATTR_MAC])
4988 if (!info->attrs[NL80211_ATTR_PMKID])
4991 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4992 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4994 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4995 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4998 switch (info->genlhdr->cmd) {
4999 case NL80211_CMD_SET_PMKSA:
5000 rdev_ops = rdev->ops->set_pmksa;
5002 case NL80211_CMD_DEL_PMKSA:
5003 rdev_ops = rdev->ops->del_pmksa;
5013 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5016 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5019 struct net_device *dev = info->user_ptr[1];
5021 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5022 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5025 if (!rdev->ops->flush_pmksa)
5028 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5031 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5034 struct net_device *dev = info->user_ptr[1];
5035 u8 action_code, dialog_token;
5039 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5040 !rdev->ops->tdls_mgmt)
5043 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5044 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5045 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5046 !info->attrs[NL80211_ATTR_IE] ||
5047 !info->attrs[NL80211_ATTR_MAC])
5050 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5051 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5052 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5053 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5055 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5056 dialog_token, status_code,
5057 nla_data(info->attrs[NL80211_ATTR_IE]),
5058 nla_len(info->attrs[NL80211_ATTR_IE]));
5061 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5064 struct net_device *dev = info->user_ptr[1];
5065 enum nl80211_tdls_operation operation;
5068 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5069 !rdev->ops->tdls_oper)
5072 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5073 !info->attrs[NL80211_ATTR_MAC])
5076 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5077 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5079 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5082 static int nl80211_remain_on_channel(struct sk_buff *skb,
5083 struct genl_info *info)
5085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5086 struct net_device *dev = info->user_ptr[1];
5087 struct ieee80211_channel *chan;
5088 struct sk_buff *msg;
5091 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5095 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5096 !info->attrs[NL80211_ATTR_DURATION])
5099 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5102 * We should be on that channel for at least one jiffie,
5103 * and more than 5 seconds seems excessive.
5105 if (!duration || !msecs_to_jiffies(duration) ||
5106 duration > rdev->wiphy.max_remain_on_channel_duration)
5109 if (!rdev->ops->remain_on_channel)
5112 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5113 channel_type = nla_get_u32(
5114 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5115 if (channel_type != NL80211_CHAN_NO_HT &&
5116 channel_type != NL80211_CHAN_HT20 &&
5117 channel_type != NL80211_CHAN_HT40PLUS &&
5118 channel_type != NL80211_CHAN_HT40MINUS)
5122 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5123 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5127 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5131 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5132 NL80211_CMD_REMAIN_ON_CHANNEL);
5139 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5140 channel_type, duration, &cookie);
5145 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5147 genlmsg_end(msg, hdr);
5149 return genlmsg_reply(msg, info);
5158 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5159 struct genl_info *info)
5161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5162 struct net_device *dev = info->user_ptr[1];
5165 if (!info->attrs[NL80211_ATTR_COOKIE])
5168 if (!rdev->ops->cancel_remain_on_channel)
5171 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5173 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5176 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5177 u8 *rates, u8 rates_len)
5182 for (i = 0; i < rates_len; i++) {
5183 int rate = (rates[i] & 0x7f) * 5;
5185 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5186 struct ieee80211_rate *srate =
5187 &sband->bitrates[ridx];
5188 if (rate == srate->bitrate) {
5193 if (ridx == sband->n_bitrates)
5194 return 0; /* rate not found */
5200 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5201 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5202 .len = NL80211_MAX_SUPP_RATES },
5205 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5206 struct genl_info *info)
5208 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5210 struct cfg80211_bitrate_mask mask;
5212 struct net_device *dev = info->user_ptr[1];
5213 struct nlattr *tx_rates;
5214 struct ieee80211_supported_band *sband;
5216 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5219 if (!rdev->ops->set_bitrate_mask)
5222 memset(&mask, 0, sizeof(mask));
5223 /* Default to all rates enabled */
5224 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5225 sband = rdev->wiphy.bands[i];
5226 mask.control[i].legacy =
5227 sband ? (1 << sband->n_bitrates) - 1 : 0;
5231 * The nested attribute uses enum nl80211_band as the index. This maps
5232 * directly to the enum ieee80211_band values used in cfg80211.
5234 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5236 enum ieee80211_band band = nla_type(tx_rates);
5237 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5239 sband = rdev->wiphy.bands[band];
5242 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5243 nla_len(tx_rates), nl80211_txattr_policy);
5244 if (tb[NL80211_TXRATE_LEGACY]) {
5245 mask.control[band].legacy = rateset_to_mask(
5247 nla_data(tb[NL80211_TXRATE_LEGACY]),
5248 nla_len(tb[NL80211_TXRATE_LEGACY]));
5249 if (mask.control[band].legacy == 0)
5254 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5257 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5259 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5260 struct net_device *dev = info->user_ptr[1];
5261 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5263 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5266 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5267 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5269 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5270 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5271 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5272 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5273 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5274 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5275 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5278 /* not much point in registering if we can't reply */
5279 if (!rdev->ops->mgmt_tx)
5282 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5284 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5285 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5288 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5291 struct net_device *dev = info->user_ptr[1];
5292 struct ieee80211_channel *chan;
5293 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5294 bool channel_type_valid = false;
5299 struct sk_buff *msg;
5300 unsigned int wait = 0;
5304 if (!info->attrs[NL80211_ATTR_FRAME] ||
5305 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5308 if (!rdev->ops->mgmt_tx)
5311 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5312 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5313 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5314 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5315 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5316 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5317 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5320 if (info->attrs[NL80211_ATTR_DURATION]) {
5321 if (!rdev->ops->mgmt_tx_cancel_wait)
5323 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5326 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5327 channel_type = nla_get_u32(
5328 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5329 if (channel_type != NL80211_CHAN_NO_HT &&
5330 channel_type != NL80211_CHAN_HT20 &&
5331 channel_type != NL80211_CHAN_HT40PLUS &&
5332 channel_type != NL80211_CHAN_HT40MINUS)
5334 channel_type_valid = true;
5337 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5339 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5341 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5342 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5346 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5350 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5357 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5358 channel_type_valid, wait,
5359 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5360 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5365 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5367 genlmsg_end(msg, hdr);
5368 return genlmsg_reply(msg, info);
5377 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5379 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5380 struct net_device *dev = info->user_ptr[1];
5383 if (!info->attrs[NL80211_ATTR_COOKIE])
5386 if (!rdev->ops->mgmt_tx_cancel_wait)
5389 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5390 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5392 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5393 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5394 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5397 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5399 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5402 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5405 struct wireless_dev *wdev;
5406 struct net_device *dev = info->user_ptr[1];
5411 if (!info->attrs[NL80211_ATTR_PS_STATE])
5414 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5416 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5419 wdev = dev->ieee80211_ptr;
5421 if (!rdev->ops->set_power_mgmt)
5424 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5426 if (state == wdev->ps)
5429 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5436 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5438 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5439 enum nl80211_ps_state ps_state;
5440 struct wireless_dev *wdev;
5441 struct net_device *dev = info->user_ptr[1];
5442 struct sk_buff *msg;
5446 wdev = dev->ieee80211_ptr;
5448 if (!rdev->ops->set_power_mgmt)
5451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5455 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5456 NL80211_CMD_GET_POWER_SAVE);
5463 ps_state = NL80211_PS_ENABLED;
5465 ps_state = NL80211_PS_DISABLED;
5467 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5469 genlmsg_end(msg, hdr);
5470 return genlmsg_reply(msg, info);
5479 static struct nla_policy
5480 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5481 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5482 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5483 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5486 static int nl80211_set_cqm_rssi(struct genl_info *info,
5487 s32 threshold, u32 hysteresis)
5489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5490 struct wireless_dev *wdev;
5491 struct net_device *dev = info->user_ptr[1];
5496 wdev = dev->ieee80211_ptr;
5498 if (!rdev->ops->set_cqm_rssi_config)
5501 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5502 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5505 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5506 threshold, hysteresis);
5509 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5511 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5515 cqm = info->attrs[NL80211_ATTR_CQM];
5521 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5522 nl80211_attr_cqm_policy);
5526 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5527 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5530 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5531 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5532 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5540 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5542 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5543 struct net_device *dev = info->user_ptr[1];
5544 struct mesh_config cfg;
5545 struct mesh_setup setup;
5548 /* start with default */
5549 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5550 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5552 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5553 /* and parse parameters if given */
5554 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5559 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5560 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5563 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5564 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5566 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5567 /* parse additional setup parameters if given */
5568 err = nl80211_parse_mesh_setup(info, &setup);
5573 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5576 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5579 struct net_device *dev = info->user_ptr[1];
5581 return cfg80211_leave_mesh(rdev, dev);
5584 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5586 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5587 struct sk_buff *msg;
5590 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5593 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5597 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5598 NL80211_CMD_GET_WOWLAN);
5600 goto nla_put_failure;
5603 struct nlattr *nl_wowlan;
5605 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5607 goto nla_put_failure;
5609 if (rdev->wowlan->any)
5610 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5611 if (rdev->wowlan->disconnect)
5612 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5613 if (rdev->wowlan->magic_pkt)
5614 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5615 if (rdev->wowlan->gtk_rekey_failure)
5616 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5617 if (rdev->wowlan->eap_identity_req)
5618 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5619 if (rdev->wowlan->four_way_handshake)
5620 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5621 if (rdev->wowlan->rfkill_release)
5622 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
5623 if (rdev->wowlan->n_patterns) {
5624 struct nlattr *nl_pats, *nl_pat;
5627 nl_pats = nla_nest_start(msg,
5628 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5630 goto nla_put_failure;
5632 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5633 nl_pat = nla_nest_start(msg, i + 1);
5635 goto nla_put_failure;
5636 pat_len = rdev->wowlan->patterns[i].pattern_len;
5637 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5638 DIV_ROUND_UP(pat_len, 8),
5639 rdev->wowlan->patterns[i].mask);
5640 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5642 rdev->wowlan->patterns[i].pattern);
5643 nla_nest_end(msg, nl_pat);
5645 nla_nest_end(msg, nl_pats);
5648 nla_nest_end(msg, nl_wowlan);
5651 genlmsg_end(msg, hdr);
5652 return genlmsg_reply(msg, info);
5659 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5661 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5662 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5663 struct cfg80211_wowlan no_triggers = {};
5664 struct cfg80211_wowlan new_triggers = {};
5665 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5668 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5671 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5674 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5675 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5676 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5677 nl80211_wowlan_policy);
5681 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5682 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5684 new_triggers.any = true;
5687 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5688 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5690 new_triggers.disconnect = true;
5693 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5694 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5696 new_triggers.magic_pkt = true;
5699 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5702 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5703 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5705 new_triggers.gtk_rekey_failure = true;
5708 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5709 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5711 new_triggers.eap_identity_req = true;
5714 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5715 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5717 new_triggers.four_way_handshake = true;
5720 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5721 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5723 new_triggers.rfkill_release = true;
5726 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5729 int rem, pat_len, mask_len;
5730 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5732 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5735 if (n_patterns > wowlan->n_patterns)
5738 new_triggers.patterns = kcalloc(n_patterns,
5739 sizeof(new_triggers.patterns[0]),
5741 if (!new_triggers.patterns)
5744 new_triggers.n_patterns = n_patterns;
5747 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5749 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5750 nla_data(pat), nla_len(pat), NULL);
5752 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5753 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5755 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5756 mask_len = DIV_ROUND_UP(pat_len, 8);
5757 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5760 if (pat_len > wowlan->pattern_max_len ||
5761 pat_len < wowlan->pattern_min_len)
5764 new_triggers.patterns[i].mask =
5765 kmalloc(mask_len + pat_len, GFP_KERNEL);
5766 if (!new_triggers.patterns[i].mask) {
5770 new_triggers.patterns[i].pattern =
5771 new_triggers.patterns[i].mask + mask_len;
5772 memcpy(new_triggers.patterns[i].mask,
5773 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5775 new_triggers.patterns[i].pattern_len = pat_len;
5776 memcpy(new_triggers.patterns[i].pattern,
5777 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5783 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5784 struct cfg80211_wowlan *ntrig;
5785 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5791 cfg80211_rdev_free_wowlan(rdev);
5792 rdev->wowlan = ntrig;
5795 cfg80211_rdev_free_wowlan(rdev);
5796 rdev->wowlan = NULL;
5801 for (i = 0; i < new_triggers.n_patterns; i++)
5802 kfree(new_triggers.patterns[i].mask);
5803 kfree(new_triggers.patterns);
5807 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5810 struct net_device *dev = info->user_ptr[1];
5811 struct wireless_dev *wdev = dev->ieee80211_ptr;
5812 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5813 struct cfg80211_gtk_rekey_data rekey_data;
5816 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5819 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5820 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5821 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5822 nl80211_rekey_policy);
5826 if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
5827 !tb[NL80211_REKEY_DATA_KCK])
5829 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5831 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5833 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5836 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5838 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5840 memcpy(rekey_data.replay_ctr,
5841 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5842 NL80211_REPLAY_CTR_LEN);
5845 if (!wdev->current_bss) {
5850 if (!rdev->ops->set_rekey_data) {
5855 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5861 #define NL80211_FLAG_NEED_WIPHY 0x01
5862 #define NL80211_FLAG_NEED_NETDEV 0x02
5863 #define NL80211_FLAG_NEED_RTNL 0x04
5864 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5865 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5866 NL80211_FLAG_CHECK_NETDEV_UP)
5868 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5869 struct genl_info *info)
5871 struct cfg80211_registered_device *rdev;
5872 struct net_device *dev;
5874 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5879 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5880 rdev = cfg80211_get_dev_from_info(info);
5884 return PTR_ERR(rdev);
5886 info->user_ptr[0] = rdev;
5887 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5888 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5894 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5895 !netif_running(dev)) {
5896 cfg80211_unlock_rdev(rdev);
5902 info->user_ptr[0] = rdev;
5903 info->user_ptr[1] = dev;
5909 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5910 struct genl_info *info)
5912 if (info->user_ptr[0])
5913 cfg80211_unlock_rdev(info->user_ptr[0]);
5914 if (info->user_ptr[1])
5915 dev_put(info->user_ptr[1]);
5916 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5920 static struct genl_ops nl80211_ops[] = {
5922 .cmd = NL80211_CMD_GET_WIPHY,
5923 .doit = nl80211_get_wiphy,
5924 .dumpit = nl80211_dump_wiphy,
5925 .policy = nl80211_policy,
5926 /* can be retrieved by unprivileged users */
5927 .internal_flags = NL80211_FLAG_NEED_WIPHY,
5930 .cmd = NL80211_CMD_SET_WIPHY,
5931 .doit = nl80211_set_wiphy,
5932 .policy = nl80211_policy,
5933 .flags = GENL_ADMIN_PERM,
5934 .internal_flags = NL80211_FLAG_NEED_RTNL,
5937 .cmd = NL80211_CMD_GET_INTERFACE,
5938 .doit = nl80211_get_interface,
5939 .dumpit = nl80211_dump_interface,
5940 .policy = nl80211_policy,
5941 /* can be retrieved by unprivileged users */
5942 .internal_flags = NL80211_FLAG_NEED_NETDEV,
5945 .cmd = NL80211_CMD_SET_INTERFACE,
5946 .doit = nl80211_set_interface,
5947 .policy = nl80211_policy,
5948 .flags = GENL_ADMIN_PERM,
5949 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5950 NL80211_FLAG_NEED_RTNL,
5953 .cmd = NL80211_CMD_NEW_INTERFACE,
5954 .doit = nl80211_new_interface,
5955 .policy = nl80211_policy,
5956 .flags = GENL_ADMIN_PERM,
5957 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5958 NL80211_FLAG_NEED_RTNL,
5961 .cmd = NL80211_CMD_DEL_INTERFACE,
5962 .doit = nl80211_del_interface,
5963 .policy = nl80211_policy,
5964 .flags = GENL_ADMIN_PERM,
5965 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5966 NL80211_FLAG_NEED_RTNL,
5969 .cmd = NL80211_CMD_GET_KEY,
5970 .doit = nl80211_get_key,
5971 .policy = nl80211_policy,
5972 .flags = GENL_ADMIN_PERM,
5973 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5974 NL80211_FLAG_NEED_RTNL,
5977 .cmd = NL80211_CMD_SET_KEY,
5978 .doit = nl80211_set_key,
5979 .policy = nl80211_policy,
5980 .flags = GENL_ADMIN_PERM,
5981 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5982 NL80211_FLAG_NEED_RTNL,
5985 .cmd = NL80211_CMD_NEW_KEY,
5986 .doit = nl80211_new_key,
5987 .policy = nl80211_policy,
5988 .flags = GENL_ADMIN_PERM,
5989 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5990 NL80211_FLAG_NEED_RTNL,
5993 .cmd = NL80211_CMD_DEL_KEY,
5994 .doit = nl80211_del_key,
5995 .policy = nl80211_policy,
5996 .flags = GENL_ADMIN_PERM,
5997 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5998 NL80211_FLAG_NEED_RTNL,
6001 .cmd = NL80211_CMD_SET_BEACON,
6002 .policy = nl80211_policy,
6003 .flags = GENL_ADMIN_PERM,
6004 .doit = nl80211_addset_beacon,
6005 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6006 NL80211_FLAG_NEED_RTNL,
6009 .cmd = NL80211_CMD_NEW_BEACON,
6010 .policy = nl80211_policy,
6011 .flags = GENL_ADMIN_PERM,
6012 .doit = nl80211_addset_beacon,
6013 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6014 NL80211_FLAG_NEED_RTNL,
6017 .cmd = NL80211_CMD_DEL_BEACON,
6018 .policy = nl80211_policy,
6019 .flags = GENL_ADMIN_PERM,
6020 .doit = nl80211_del_beacon,
6021 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6022 NL80211_FLAG_NEED_RTNL,
6025 .cmd = NL80211_CMD_GET_STATION,
6026 .doit = nl80211_get_station,
6027 .dumpit = nl80211_dump_station,
6028 .policy = nl80211_policy,
6029 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6030 NL80211_FLAG_NEED_RTNL,
6033 .cmd = NL80211_CMD_SET_STATION,
6034 .doit = nl80211_set_station,
6035 .policy = nl80211_policy,
6036 .flags = GENL_ADMIN_PERM,
6037 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6038 NL80211_FLAG_NEED_RTNL,
6041 .cmd = NL80211_CMD_NEW_STATION,
6042 .doit = nl80211_new_station,
6043 .policy = nl80211_policy,
6044 .flags = GENL_ADMIN_PERM,
6045 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6046 NL80211_FLAG_NEED_RTNL,
6049 .cmd = NL80211_CMD_DEL_STATION,
6050 .doit = nl80211_del_station,
6051 .policy = nl80211_policy,
6052 .flags = GENL_ADMIN_PERM,
6053 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6054 NL80211_FLAG_NEED_RTNL,
6057 .cmd = NL80211_CMD_GET_MPATH,
6058 .doit = nl80211_get_mpath,
6059 .dumpit = nl80211_dump_mpath,
6060 .policy = nl80211_policy,
6061 .flags = GENL_ADMIN_PERM,
6062 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6063 NL80211_FLAG_NEED_RTNL,
6066 .cmd = NL80211_CMD_SET_MPATH,
6067 .doit = nl80211_set_mpath,
6068 .policy = nl80211_policy,
6069 .flags = GENL_ADMIN_PERM,
6070 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6071 NL80211_FLAG_NEED_RTNL,
6074 .cmd = NL80211_CMD_NEW_MPATH,
6075 .doit = nl80211_new_mpath,
6076 .policy = nl80211_policy,
6077 .flags = GENL_ADMIN_PERM,
6078 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6079 NL80211_FLAG_NEED_RTNL,
6082 .cmd = NL80211_CMD_DEL_MPATH,
6083 .doit = nl80211_del_mpath,
6084 .policy = nl80211_policy,
6085 .flags = GENL_ADMIN_PERM,
6086 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6087 NL80211_FLAG_NEED_RTNL,
6090 .cmd = NL80211_CMD_SET_BSS,
6091 .doit = nl80211_set_bss,
6092 .policy = nl80211_policy,
6093 .flags = GENL_ADMIN_PERM,
6094 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6095 NL80211_FLAG_NEED_RTNL,
6098 .cmd = NL80211_CMD_GET_REG,
6099 .doit = nl80211_get_reg,
6100 .policy = nl80211_policy,
6101 /* can be retrieved by unprivileged users */
6104 .cmd = NL80211_CMD_SET_REG,
6105 .doit = nl80211_set_reg,
6106 .policy = nl80211_policy,
6107 .flags = GENL_ADMIN_PERM,
6110 .cmd = NL80211_CMD_REQ_SET_REG,
6111 .doit = nl80211_req_set_reg,
6112 .policy = nl80211_policy,
6113 .flags = GENL_ADMIN_PERM,
6116 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6117 .doit = nl80211_get_mesh_config,
6118 .policy = nl80211_policy,
6119 /* can be retrieved by unprivileged users */
6120 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6121 NL80211_FLAG_NEED_RTNL,
6124 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6125 .doit = nl80211_update_mesh_config,
6126 .policy = nl80211_policy,
6127 .flags = GENL_ADMIN_PERM,
6128 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6129 NL80211_FLAG_NEED_RTNL,
6132 .cmd = NL80211_CMD_TRIGGER_SCAN,
6133 .doit = nl80211_trigger_scan,
6134 .policy = nl80211_policy,
6135 .flags = GENL_ADMIN_PERM,
6136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6137 NL80211_FLAG_NEED_RTNL,
6140 .cmd = NL80211_CMD_GET_SCAN,
6141 .policy = nl80211_policy,
6142 .dumpit = nl80211_dump_scan,
6145 .cmd = NL80211_CMD_START_SCHED_SCAN,
6146 .doit = nl80211_start_sched_scan,
6147 .policy = nl80211_policy,
6148 .flags = GENL_ADMIN_PERM,
6149 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6150 NL80211_FLAG_NEED_RTNL,
6153 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6154 .doit = nl80211_stop_sched_scan,
6155 .policy = nl80211_policy,
6156 .flags = GENL_ADMIN_PERM,
6157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6158 NL80211_FLAG_NEED_RTNL,
6161 .cmd = NL80211_CMD_AUTHENTICATE,
6162 .doit = nl80211_authenticate,
6163 .policy = nl80211_policy,
6164 .flags = GENL_ADMIN_PERM,
6165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6166 NL80211_FLAG_NEED_RTNL,
6169 .cmd = NL80211_CMD_ASSOCIATE,
6170 .doit = nl80211_associate,
6171 .policy = nl80211_policy,
6172 .flags = GENL_ADMIN_PERM,
6173 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6174 NL80211_FLAG_NEED_RTNL,
6177 .cmd = NL80211_CMD_DEAUTHENTICATE,
6178 .doit = nl80211_deauthenticate,
6179 .policy = nl80211_policy,
6180 .flags = GENL_ADMIN_PERM,
6181 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6182 NL80211_FLAG_NEED_RTNL,
6185 .cmd = NL80211_CMD_DISASSOCIATE,
6186 .doit = nl80211_disassociate,
6187 .policy = nl80211_policy,
6188 .flags = GENL_ADMIN_PERM,
6189 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6190 NL80211_FLAG_NEED_RTNL,
6193 .cmd = NL80211_CMD_JOIN_IBSS,
6194 .doit = nl80211_join_ibss,
6195 .policy = nl80211_policy,
6196 .flags = GENL_ADMIN_PERM,
6197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6198 NL80211_FLAG_NEED_RTNL,
6201 .cmd = NL80211_CMD_LEAVE_IBSS,
6202 .doit = nl80211_leave_ibss,
6203 .policy = nl80211_policy,
6204 .flags = GENL_ADMIN_PERM,
6205 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6206 NL80211_FLAG_NEED_RTNL,
6208 #ifdef CONFIG_NL80211_TESTMODE
6210 .cmd = NL80211_CMD_TESTMODE,
6211 .doit = nl80211_testmode_do,
6212 .dumpit = nl80211_testmode_dump,
6213 .policy = nl80211_policy,
6214 .flags = GENL_ADMIN_PERM,
6215 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6216 NL80211_FLAG_NEED_RTNL,
6220 .cmd = NL80211_CMD_CONNECT,
6221 .doit = nl80211_connect,
6222 .policy = nl80211_policy,
6223 .flags = GENL_ADMIN_PERM,
6224 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6225 NL80211_FLAG_NEED_RTNL,
6228 .cmd = NL80211_CMD_DISCONNECT,
6229 .doit = nl80211_disconnect,
6230 .policy = nl80211_policy,
6231 .flags = GENL_ADMIN_PERM,
6232 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6233 NL80211_FLAG_NEED_RTNL,
6236 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6237 .doit = nl80211_wiphy_netns,
6238 .policy = nl80211_policy,
6239 .flags = GENL_ADMIN_PERM,
6240 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6241 NL80211_FLAG_NEED_RTNL,
6244 .cmd = NL80211_CMD_GET_SURVEY,
6245 .policy = nl80211_policy,
6246 .dumpit = nl80211_dump_survey,
6249 .cmd = NL80211_CMD_SET_PMKSA,
6250 .doit = nl80211_setdel_pmksa,
6251 .policy = nl80211_policy,
6252 .flags = GENL_ADMIN_PERM,
6253 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6254 NL80211_FLAG_NEED_RTNL,
6257 .cmd = NL80211_CMD_DEL_PMKSA,
6258 .doit = nl80211_setdel_pmksa,
6259 .policy = nl80211_policy,
6260 .flags = GENL_ADMIN_PERM,
6261 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6262 NL80211_FLAG_NEED_RTNL,
6265 .cmd = NL80211_CMD_FLUSH_PMKSA,
6266 .doit = nl80211_flush_pmksa,
6267 .policy = nl80211_policy,
6268 .flags = GENL_ADMIN_PERM,
6269 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6270 NL80211_FLAG_NEED_RTNL,
6273 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6274 .doit = nl80211_remain_on_channel,
6275 .policy = nl80211_policy,
6276 .flags = GENL_ADMIN_PERM,
6277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6278 NL80211_FLAG_NEED_RTNL,
6281 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6282 .doit = nl80211_cancel_remain_on_channel,
6283 .policy = nl80211_policy,
6284 .flags = GENL_ADMIN_PERM,
6285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6286 NL80211_FLAG_NEED_RTNL,
6289 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6290 .doit = nl80211_set_tx_bitrate_mask,
6291 .policy = nl80211_policy,
6292 .flags = GENL_ADMIN_PERM,
6293 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6294 NL80211_FLAG_NEED_RTNL,
6297 .cmd = NL80211_CMD_REGISTER_FRAME,
6298 .doit = nl80211_register_mgmt,
6299 .policy = nl80211_policy,
6300 .flags = GENL_ADMIN_PERM,
6301 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6302 NL80211_FLAG_NEED_RTNL,
6305 .cmd = NL80211_CMD_FRAME,
6306 .doit = nl80211_tx_mgmt,
6307 .policy = nl80211_policy,
6308 .flags = GENL_ADMIN_PERM,
6309 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6310 NL80211_FLAG_NEED_RTNL,
6313 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6314 .doit = nl80211_tx_mgmt_cancel_wait,
6315 .policy = nl80211_policy,
6316 .flags = GENL_ADMIN_PERM,
6317 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6318 NL80211_FLAG_NEED_RTNL,
6321 .cmd = NL80211_CMD_SET_POWER_SAVE,
6322 .doit = nl80211_set_power_save,
6323 .policy = nl80211_policy,
6324 .flags = GENL_ADMIN_PERM,
6325 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6326 NL80211_FLAG_NEED_RTNL,
6329 .cmd = NL80211_CMD_GET_POWER_SAVE,
6330 .doit = nl80211_get_power_save,
6331 .policy = nl80211_policy,
6332 /* can be retrieved by unprivileged users */
6333 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6334 NL80211_FLAG_NEED_RTNL,
6337 .cmd = NL80211_CMD_SET_CQM,
6338 .doit = nl80211_set_cqm,
6339 .policy = nl80211_policy,
6340 .flags = GENL_ADMIN_PERM,
6341 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6342 NL80211_FLAG_NEED_RTNL,
6345 .cmd = NL80211_CMD_SET_CHANNEL,
6346 .doit = nl80211_set_channel,
6347 .policy = nl80211_policy,
6348 .flags = GENL_ADMIN_PERM,
6349 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6350 NL80211_FLAG_NEED_RTNL,
6353 .cmd = NL80211_CMD_SET_WDS_PEER,
6354 .doit = nl80211_set_wds_peer,
6355 .policy = nl80211_policy,
6356 .flags = GENL_ADMIN_PERM,
6357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6358 NL80211_FLAG_NEED_RTNL,
6361 .cmd = NL80211_CMD_JOIN_MESH,
6362 .doit = nl80211_join_mesh,
6363 .policy = nl80211_policy,
6364 .flags = GENL_ADMIN_PERM,
6365 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6366 NL80211_FLAG_NEED_RTNL,
6369 .cmd = NL80211_CMD_LEAVE_MESH,
6370 .doit = nl80211_leave_mesh,
6371 .policy = nl80211_policy,
6372 .flags = GENL_ADMIN_PERM,
6373 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6374 NL80211_FLAG_NEED_RTNL,
6377 .cmd = NL80211_CMD_GET_WOWLAN,
6378 .doit = nl80211_get_wowlan,
6379 .policy = nl80211_policy,
6380 /* can be retrieved by unprivileged users */
6381 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6382 NL80211_FLAG_NEED_RTNL,
6385 .cmd = NL80211_CMD_SET_WOWLAN,
6386 .doit = nl80211_set_wowlan,
6387 .policy = nl80211_policy,
6388 .flags = GENL_ADMIN_PERM,
6389 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6390 NL80211_FLAG_NEED_RTNL,
6393 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6394 .doit = nl80211_set_rekey_data,
6395 .policy = nl80211_policy,
6396 .flags = GENL_ADMIN_PERM,
6397 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6398 NL80211_FLAG_NEED_RTNL,
6401 .cmd = NL80211_CMD_TDLS_MGMT,
6402 .doit = nl80211_tdls_mgmt,
6403 .policy = nl80211_policy,
6404 .flags = GENL_ADMIN_PERM,
6405 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6406 NL80211_FLAG_NEED_RTNL,
6409 .cmd = NL80211_CMD_TDLS_OPER,
6410 .doit = nl80211_tdls_oper,
6411 .policy = nl80211_policy,
6412 .flags = GENL_ADMIN_PERM,
6413 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6414 NL80211_FLAG_NEED_RTNL,
6418 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6422 /* multicast groups */
6423 static struct genl_multicast_group nl80211_config_mcgrp = {
6426 static struct genl_multicast_group nl80211_scan_mcgrp = {
6429 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6430 .name = "regulatory",
6433 /* notification functions */
6435 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6437 struct sk_buff *msg;
6439 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6443 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6448 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6449 nl80211_config_mcgrp.id, GFP_KERNEL);
6452 static int nl80211_add_scan_req(struct sk_buff *msg,
6453 struct cfg80211_registered_device *rdev)
6455 struct cfg80211_scan_request *req = rdev->scan_req;
6456 struct nlattr *nest;
6459 ASSERT_RDEV_LOCK(rdev);
6464 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6466 goto nla_put_failure;
6467 for (i = 0; i < req->n_ssids; i++)
6468 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6469 nla_nest_end(msg, nest);
6471 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6473 goto nla_put_failure;
6474 for (i = 0; i < req->n_channels; i++)
6475 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6476 nla_nest_end(msg, nest);
6479 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6486 static int nl80211_send_scan_msg(struct sk_buff *msg,
6487 struct cfg80211_registered_device *rdev,
6488 struct net_device *netdev,
6489 u32 pid, u32 seq, int flags,
6494 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6498 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6499 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6501 /* ignore errors and send incomplete event anyway */
6502 nl80211_add_scan_req(msg, rdev);
6504 return genlmsg_end(msg, hdr);
6507 genlmsg_cancel(msg, hdr);
6512 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6513 struct cfg80211_registered_device *rdev,
6514 struct net_device *netdev,
6515 u32 pid, u32 seq, int flags, u32 cmd)
6519 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6523 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6524 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6526 return genlmsg_end(msg, hdr);
6529 genlmsg_cancel(msg, hdr);
6533 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6534 struct net_device *netdev)
6536 struct sk_buff *msg;
6538 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6542 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6543 NL80211_CMD_TRIGGER_SCAN) < 0) {
6548 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6549 nl80211_scan_mcgrp.id, GFP_KERNEL);
6552 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6553 struct net_device *netdev)
6555 struct sk_buff *msg;
6557 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6561 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6562 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
6567 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6568 nl80211_scan_mcgrp.id, GFP_KERNEL);
6571 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6572 struct net_device *netdev)
6574 struct sk_buff *msg;
6576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6580 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6581 NL80211_CMD_SCAN_ABORTED) < 0) {
6586 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6587 nl80211_scan_mcgrp.id, GFP_KERNEL);
6590 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6591 struct net_device *netdev)
6593 struct sk_buff *msg;
6595 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6599 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6600 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6605 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6606 nl80211_scan_mcgrp.id, GFP_KERNEL);
6609 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6610 struct net_device *netdev, u32 cmd)
6612 struct sk_buff *msg;
6614 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6618 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6623 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6624 nl80211_scan_mcgrp.id, GFP_KERNEL);
6628 * This can happen on global regulatory changes or device specific settings
6629 * based on custom world regulatory domains.
6631 void nl80211_send_reg_change_event(struct regulatory_request *request)
6633 struct sk_buff *msg;
6636 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6640 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6646 /* Userspace can always count this one always being set */
6647 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6649 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6650 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6651 NL80211_REGDOM_TYPE_WORLD);
6652 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6653 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6654 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6655 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6657 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6658 NL80211_REGDOM_TYPE_INTERSECTION);
6660 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6661 NL80211_REGDOM_TYPE_COUNTRY);
6662 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6665 if (wiphy_idx_valid(request->wiphy_idx))
6666 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6668 if (genlmsg_end(msg, hdr) < 0) {
6674 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6681 genlmsg_cancel(msg, hdr);
6685 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6686 struct net_device *netdev,
6687 const u8 *buf, size_t len,
6688 enum nl80211_commands cmd, gfp_t gfp)
6690 struct sk_buff *msg;
6693 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6697 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6703 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6704 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6705 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6707 if (genlmsg_end(msg, hdr) < 0) {
6712 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6713 nl80211_mlme_mcgrp.id, gfp);
6717 genlmsg_cancel(msg, hdr);
6721 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
6722 struct net_device *netdev, const u8 *buf,
6723 size_t len, gfp_t gfp)
6725 nl80211_send_mlme_event(rdev, netdev, buf, len,
6726 NL80211_CMD_AUTHENTICATE, gfp);
6729 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6730 struct net_device *netdev, const u8 *buf,
6731 size_t len, gfp_t gfp)
6733 nl80211_send_mlme_event(rdev, netdev, buf, len,
6734 NL80211_CMD_ASSOCIATE, gfp);
6737 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
6738 struct net_device *netdev, const u8 *buf,
6739 size_t len, gfp_t gfp)
6741 nl80211_send_mlme_event(rdev, netdev, buf, len,
6742 NL80211_CMD_DEAUTHENTICATE, gfp);
6745 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6746 struct net_device *netdev, const u8 *buf,
6747 size_t len, gfp_t gfp)
6749 nl80211_send_mlme_event(rdev, netdev, buf, len,
6750 NL80211_CMD_DISASSOCIATE, gfp);
6753 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6754 struct net_device *netdev, const u8 *buf,
6755 size_t len, gfp_t gfp)
6757 nl80211_send_mlme_event(rdev, netdev, buf, len,
6758 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6761 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6762 struct net_device *netdev, const u8 *buf,
6763 size_t len, gfp_t gfp)
6765 nl80211_send_mlme_event(rdev, netdev, buf, len,
6766 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6769 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6770 struct net_device *netdev, int cmd,
6771 const u8 *addr, gfp_t gfp)
6773 struct sk_buff *msg;
6776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6780 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6786 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6787 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6788 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6789 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6791 if (genlmsg_end(msg, hdr) < 0) {
6796 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6797 nl80211_mlme_mcgrp.id, gfp);
6801 genlmsg_cancel(msg, hdr);
6805 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
6806 struct net_device *netdev, const u8 *addr,
6809 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
6813 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
6814 struct net_device *netdev, const u8 *addr,
6817 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6821 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6822 struct net_device *netdev, const u8 *bssid,
6823 const u8 *req_ie, size_t req_ie_len,
6824 const u8 *resp_ie, size_t resp_ie_len,
6825 u16 status, gfp_t gfp)
6827 struct sk_buff *msg;
6830 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6834 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6840 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6841 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6843 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6844 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6846 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6848 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6850 if (genlmsg_end(msg, hdr) < 0) {
6855 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6856 nl80211_mlme_mcgrp.id, gfp);
6860 genlmsg_cancel(msg, hdr);
6865 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6866 struct net_device *netdev, const u8 *bssid,
6867 const u8 *req_ie, size_t req_ie_len,
6868 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6870 struct sk_buff *msg;
6873 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6877 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6883 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6884 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6885 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6887 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6889 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6891 if (genlmsg_end(msg, hdr) < 0) {
6896 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6897 nl80211_mlme_mcgrp.id, gfp);
6901 genlmsg_cancel(msg, hdr);
6906 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6907 struct net_device *netdev, u16 reason,
6908 const u8 *ie, size_t ie_len, bool from_ap)
6910 struct sk_buff *msg;
6913 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6917 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6923 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6924 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6925 if (from_ap && reason)
6926 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6928 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6930 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6932 if (genlmsg_end(msg, hdr) < 0) {
6937 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6938 nl80211_mlme_mcgrp.id, GFP_KERNEL);
6942 genlmsg_cancel(msg, hdr);
6947 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6948 struct net_device *netdev, const u8 *bssid,
6951 struct sk_buff *msg;
6954 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6958 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6964 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6965 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6966 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6968 if (genlmsg_end(msg, hdr) < 0) {
6973 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6974 nl80211_mlme_mcgrp.id, gfp);
6978 genlmsg_cancel(msg, hdr);
6982 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6983 struct net_device *netdev,
6984 const u8 *macaddr, const u8* ie, u8 ie_len,
6987 struct sk_buff *msg;
6990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6994 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7000 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7001 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7002 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7004 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7006 if (genlmsg_end(msg, hdr) < 0) {
7011 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7012 nl80211_mlme_mcgrp.id, gfp);
7016 genlmsg_cancel(msg, hdr);
7020 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7021 struct net_device *netdev, const u8 *addr,
7022 enum nl80211_key_type key_type, int key_id,
7023 const u8 *tsc, gfp_t gfp)
7025 struct sk_buff *msg;
7028 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7032 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7038 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7039 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7041 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7042 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
7044 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
7046 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7048 if (genlmsg_end(msg, hdr) < 0) {
7053 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7054 nl80211_mlme_mcgrp.id, gfp);
7058 genlmsg_cancel(msg, hdr);
7062 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7063 struct ieee80211_channel *channel_before,
7064 struct ieee80211_channel *channel_after)
7066 struct sk_buff *msg;
7068 struct nlattr *nl_freq;
7070 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7074 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7081 * Since we are applying the beacon hint to a wiphy we know its
7082 * wiphy_idx is valid
7084 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7087 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7089 goto nla_put_failure;
7090 if (nl80211_msg_put_channel(msg, channel_before))
7091 goto nla_put_failure;
7092 nla_nest_end(msg, nl_freq);
7095 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7097 goto nla_put_failure;
7098 if (nl80211_msg_put_channel(msg, channel_after))
7099 goto nla_put_failure;
7100 nla_nest_end(msg, nl_freq);
7102 if (genlmsg_end(msg, hdr) < 0) {
7108 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7115 genlmsg_cancel(msg, hdr);
7119 static void nl80211_send_remain_on_chan_event(
7120 int cmd, struct cfg80211_registered_device *rdev,
7121 struct net_device *netdev, u64 cookie,
7122 struct ieee80211_channel *chan,
7123 enum nl80211_channel_type channel_type,
7124 unsigned int duration, gfp_t gfp)
7126 struct sk_buff *msg;
7129 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7133 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7139 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7140 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7141 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7142 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7143 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7145 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7146 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7148 if (genlmsg_end(msg, hdr) < 0) {
7153 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7154 nl80211_mlme_mcgrp.id, gfp);
7158 genlmsg_cancel(msg, hdr);
7162 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7163 struct net_device *netdev, u64 cookie,
7164 struct ieee80211_channel *chan,
7165 enum nl80211_channel_type channel_type,
7166 unsigned int duration, gfp_t gfp)
7168 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7169 rdev, netdev, cookie, chan,
7170 channel_type, duration, gfp);
7173 void nl80211_send_remain_on_channel_cancel(
7174 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7175 u64 cookie, struct ieee80211_channel *chan,
7176 enum nl80211_channel_type channel_type, gfp_t gfp)
7178 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7179 rdev, netdev, cookie, chan,
7180 channel_type, 0, gfp);
7183 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7184 struct net_device *dev, const u8 *mac_addr,
7185 struct station_info *sinfo, gfp_t gfp)
7187 struct sk_buff *msg;
7189 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7193 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7198 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7199 nl80211_mlme_mcgrp.id, gfp);
7202 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7203 struct net_device *dev, const u8 *mac_addr,
7206 struct sk_buff *msg;
7209 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7213 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7219 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7220 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7222 if (genlmsg_end(msg, hdr) < 0) {
7227 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7228 nl80211_mlme_mcgrp.id, gfp);
7232 genlmsg_cancel(msg, hdr);
7236 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7237 struct net_device *netdev, u32 nlpid,
7238 int freq, const u8 *buf, size_t len, gfp_t gfp)
7240 struct sk_buff *msg;
7244 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7248 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7254 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7255 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7256 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7257 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7259 err = genlmsg_end(msg, hdr);
7265 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7271 genlmsg_cancel(msg, hdr);
7276 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7277 struct net_device *netdev, u64 cookie,
7278 const u8 *buf, size_t len, bool ack,
7281 struct sk_buff *msg;
7284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7288 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7294 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7295 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7296 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7297 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7299 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7301 if (genlmsg_end(msg, hdr) < 0) {
7306 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7307 nl80211_mlme_mcgrp.id, gfp);
7311 genlmsg_cancel(msg, hdr);
7316 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7317 struct net_device *netdev,
7318 enum nl80211_cqm_rssi_threshold_event rssi_event,
7321 struct sk_buff *msg;
7322 struct nlattr *pinfoattr;
7325 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7335 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7336 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7338 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7340 goto nla_put_failure;
7342 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7345 nla_nest_end(msg, pinfoattr);
7347 if (genlmsg_end(msg, hdr) < 0) {
7352 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7353 nl80211_mlme_mcgrp.id, gfp);
7357 genlmsg_cancel(msg, hdr);
7361 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7362 struct net_device *netdev, const u8 *bssid,
7363 const u8 *replay_ctr, gfp_t gfp)
7365 struct sk_buff *msg;
7366 struct nlattr *rekey_attr;
7369 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7373 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7379 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7380 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7381 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7383 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7385 goto nla_put_failure;
7387 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7388 NL80211_REPLAY_CTR_LEN, replay_ctr);
7390 nla_nest_end(msg, rekey_attr);
7392 if (genlmsg_end(msg, hdr) < 0) {
7397 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7398 nl80211_mlme_mcgrp.id, gfp);
7402 genlmsg_cancel(msg, hdr);
7406 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7407 struct net_device *netdev, int index,
7408 const u8 *bssid, bool preauth, gfp_t gfp)
7410 struct sk_buff *msg;
7411 struct nlattr *attr;
7414 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7418 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7424 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7425 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7427 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7429 goto nla_put_failure;
7431 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7432 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7434 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7436 nla_nest_end(msg, attr);
7438 if (genlmsg_end(msg, hdr) < 0) {
7443 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7444 nl80211_mlme_mcgrp.id, gfp);
7448 genlmsg_cancel(msg, hdr);
7453 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7454 struct net_device *netdev, const u8 *peer,
7455 u32 num_packets, gfp_t gfp)
7457 struct sk_buff *msg;
7458 struct nlattr *pinfoattr;
7461 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7465 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7471 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7472 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7473 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7475 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7477 goto nla_put_failure;
7479 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7481 nla_nest_end(msg, pinfoattr);
7483 if (genlmsg_end(msg, hdr) < 0) {
7488 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7489 nl80211_mlme_mcgrp.id, gfp);
7493 genlmsg_cancel(msg, hdr);
7497 static int nl80211_netlink_notify(struct notifier_block * nb,
7498 unsigned long state,
7501 struct netlink_notify *notify = _notify;
7502 struct cfg80211_registered_device *rdev;
7503 struct wireless_dev *wdev;
7505 if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC)
7510 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7511 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
7512 cfg80211_mlme_unregister_socket(wdev, notify->pid);
7519 static struct notifier_block nl80211_netlink_notifier = {
7520 .notifier_call = nl80211_netlink_notify,
7523 /* initialisation/exit functions */
7525 int nl80211_init(void)
7529 err = genl_register_family_with_ops(&nl80211_fam,
7530 nl80211_ops, ARRAY_SIZE(nl80211_ops));
7534 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7538 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7542 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7546 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7550 #ifdef CONFIG_NL80211_TESTMODE
7551 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7556 err = netlink_register_notifier(&nl80211_netlink_notifier);
7562 genl_unregister_family(&nl80211_fam);
7566 void nl80211_exit(void)
7568 netlink_unregister_notifier(&nl80211_netlink_notifier);
7569 genl_unregister_family(&nl80211_fam);