2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/slab.h>
11 #include <linux/list.h>
12 #include <linux/if_ether.h>
13 #include <linux/ieee80211.h>
14 #include <linux/nl80211.h>
15 #include <linux/rtnetlink.h>
16 #include <linux/netlink.h>
17 #include <linux/etherdevice.h>
18 #include <net/net_namespace.h>
19 #include <net/genetlink.h>
20 #include <net/cfg80211.h>
26 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
32 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
37 /* the netlink family */
38 static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
49 /* internal helper: get rdev and dev */
50 static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
54 struct nlattr **attrs = info->attrs;
57 if (!attrs[NL80211_ATTR_IFINDEX])
60 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
61 *dev = dev_get_by_index(genl_info_net(info), ifindex);
65 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
68 return PTR_ERR(*rdev);
74 /* policy for the attributes */
75 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
76 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
77 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
79 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
80 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
81 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
82 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
84 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
85 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
86 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
88 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
90 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
92 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
93 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
95 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
96 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
97 .len = WLAN_MAX_KEY_LEN },
98 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
99 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
100 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
101 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
102 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
104 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
105 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
106 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
107 .len = IEEE80211_MAX_DATA_LEN },
108 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
109 .len = IEEE80211_MAX_DATA_LEN },
110 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
111 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
112 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
113 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
114 .len = NL80211_MAX_SUPP_RATES },
115 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
116 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
117 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
118 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
119 .len = IEEE80211_MAX_MESH_ID_LEN },
120 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
122 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
123 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
125 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
127 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
128 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
129 .len = NL80211_MAX_SUPP_RATES },
130 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
132 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
133 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
135 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
136 .len = NL80211_HT_CAPABILITY_LEN },
138 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
139 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
140 .len = IEEE80211_MAX_DATA_LEN },
141 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
142 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
144 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
145 .len = IEEE80211_MAX_SSID_LEN },
146 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
147 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
148 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
149 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
150 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
151 [NL80211_ATTR_STA_FLAGS2] = {
152 .len = sizeof(struct nl80211_sta_flag_update),
154 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
155 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
156 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
157 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
158 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
159 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
160 [NL80211_ATTR_PID] = { .type = NLA_U32 },
161 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
162 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
163 .len = WLAN_PMKID_LEN },
164 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
165 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
166 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
167 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
168 .len = IEEE80211_MAX_DATA_LEN },
169 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
170 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
171 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
172 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
173 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
174 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
175 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
176 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
177 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
178 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
179 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
180 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
181 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
182 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
183 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
184 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
185 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
186 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
187 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
188 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
190 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
191 .len = IEEE80211_MAX_DATA_LEN },
194 /* policy for the key attributes */
195 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
196 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
197 [NL80211_KEY_IDX] = { .type = NLA_U8 },
198 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
199 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
200 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
201 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
202 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
203 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
206 /* policy for the key default flags */
207 static const struct nla_policy
208 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
209 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
210 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
213 /* policy for WoWLAN attributes */
214 static const struct nla_policy
215 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
216 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
217 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
218 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
219 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
220 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
221 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
222 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
223 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
226 /* policy for GTK rekey offload attributes */
227 static const struct nla_policy
228 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
229 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
230 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
231 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
234 /* ifidx get helper */
235 static int nl80211_get_ifidx(struct netlink_callback *cb)
239 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
240 nl80211_fam.attrbuf, nl80211_fam.maxattr,
245 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
248 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
254 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
255 struct netlink_callback *cb,
256 struct cfg80211_registered_device **rdev,
257 struct net_device **dev)
259 int ifidx = cb->args[0];
263 ifidx = nl80211_get_ifidx(cb);
271 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
277 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
279 err = PTR_ERR(*rdev);
289 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
291 cfg80211_unlock_rdev(rdev);
296 static bool is_valid_ie_attr(const struct nlattr *attr)
304 pos = nla_data(attr);
325 /* message building helper */
326 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
329 /* since there is no private header just add the generic one */
330 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
333 static int nl80211_msg_put_channel(struct sk_buff *msg,
334 struct ieee80211_channel *chan)
336 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
339 if (chan->flags & IEEE80211_CHAN_DISABLED)
340 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
341 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
342 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
343 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
344 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
345 if (chan->flags & IEEE80211_CHAN_RADAR)
346 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
348 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
349 DBM_TO_MBM(chan->max_power));
357 /* netlink command implementations */
364 bool def_uni, def_multi;
367 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
369 struct nlattr *tb[NL80211_KEY_MAX + 1];
370 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
375 k->def = !!tb[NL80211_KEY_DEFAULT];
376 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
385 if (tb[NL80211_KEY_IDX])
386 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
388 if (tb[NL80211_KEY_DATA]) {
389 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
390 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
393 if (tb[NL80211_KEY_SEQ]) {
394 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
395 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
398 if (tb[NL80211_KEY_CIPHER])
399 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
401 if (tb[NL80211_KEY_TYPE]) {
402 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
403 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
407 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
408 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
409 int err = nla_parse_nested(kdt,
410 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
411 tb[NL80211_KEY_DEFAULT_TYPES],
412 nl80211_key_default_policy);
416 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
417 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
423 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
425 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
426 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
427 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
430 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
431 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
432 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
435 if (info->attrs[NL80211_ATTR_KEY_IDX])
436 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
438 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
439 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
441 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
442 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
451 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
452 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
453 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
457 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
458 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
459 int err = nla_parse_nested(
460 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
461 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
462 nl80211_key_default_policy);
466 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
467 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
473 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
477 memset(k, 0, sizeof(*k));
481 if (info->attrs[NL80211_ATTR_KEY])
482 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
484 err = nl80211_parse_key_old(info, k);
489 if (k->def && k->defmgmt)
493 if (k->def_uni || !k->def_multi)
499 if (k->idx < 4 || k->idx > 5)
502 if (k->idx < 0 || k->idx > 3)
505 if (k->idx < 0 || k->idx > 5)
513 static struct cfg80211_cached_keys *
514 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
517 struct key_parse parse;
519 struct cfg80211_cached_keys *result;
520 int rem, err, def = 0;
522 result = kzalloc(sizeof(*result), GFP_KERNEL);
524 return ERR_PTR(-ENOMEM);
527 result->defmgmt = -1;
529 nla_for_each_nested(key, keys, rem) {
530 memset(&parse, 0, sizeof(parse));
533 err = nl80211_parse_key_new(key, &parse);
539 if (parse.idx < 0 || parse.idx > 4)
545 result->def = parse.idx;
546 if (!parse.def_uni || !parse.def_multi)
548 } else if (parse.defmgmt)
550 err = cfg80211_validate_key_settings(rdev, &parse.p,
551 parse.idx, false, NULL);
554 result->params[parse.idx].cipher = parse.p.cipher;
555 result->params[parse.idx].key_len = parse.p.key_len;
556 result->params[parse.idx].key = result->data[parse.idx];
557 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
566 static int nl80211_key_allowed(struct wireless_dev *wdev)
568 ASSERT_WDEV_LOCK(wdev);
570 switch (wdev->iftype) {
571 case NL80211_IFTYPE_AP:
572 case NL80211_IFTYPE_AP_VLAN:
573 case NL80211_IFTYPE_P2P_GO:
574 case NL80211_IFTYPE_MESH_POINT:
576 case NL80211_IFTYPE_ADHOC:
577 if (!wdev->current_bss)
580 case NL80211_IFTYPE_STATION:
581 case NL80211_IFTYPE_P2P_CLIENT:
582 if (wdev->sme_state != CFG80211_SME_CONNECTED)
592 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
594 struct nlattr *nl_modes = nla_nest_start(msg, attr);
598 goto nla_put_failure;
603 NLA_PUT_FLAG(msg, i);
608 nla_nest_end(msg, nl_modes);
615 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
618 struct nlattr *nl_combis;
621 nl_combis = nla_nest_start(msg,
622 NL80211_ATTR_INTERFACE_COMBINATIONS);
624 goto nla_put_failure;
626 for (i = 0; i < wiphy->n_iface_combinations; i++) {
627 const struct ieee80211_iface_combination *c;
628 struct nlattr *nl_combi, *nl_limits;
630 c = &wiphy->iface_combinations[i];
632 nl_combi = nla_nest_start(msg, i + 1);
634 goto nla_put_failure;
636 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
638 goto nla_put_failure;
640 for (j = 0; j < c->n_limits; j++) {
641 struct nlattr *nl_limit;
643 nl_limit = nla_nest_start(msg, j + 1);
645 goto nla_put_failure;
646 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
648 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
650 goto nla_put_failure;
651 nla_nest_end(msg, nl_limit);
654 nla_nest_end(msg, nl_limits);
656 if (c->beacon_int_infra_match)
658 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
659 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
660 c->num_different_channels);
661 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
664 nla_nest_end(msg, nl_combi);
667 nla_nest_end(msg, nl_combis);
674 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
675 struct cfg80211_registered_device *dev)
678 struct nlattr *nl_bands, *nl_band;
679 struct nlattr *nl_freqs, *nl_freq;
680 struct nlattr *nl_rates, *nl_rate;
681 struct nlattr *nl_cmds;
682 enum ieee80211_band band;
683 struct ieee80211_channel *chan;
684 struct ieee80211_rate *rate;
686 const struct ieee80211_txrx_stypes *mgmt_stypes =
687 dev->wiphy.mgmt_stypes;
689 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
693 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
694 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
696 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
697 cfg80211_rdev_list_generation);
699 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
700 dev->wiphy.retry_short);
701 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
702 dev->wiphy.retry_long);
703 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
704 dev->wiphy.frag_threshold);
705 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
706 dev->wiphy.rts_threshold);
707 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
708 dev->wiphy.coverage_class);
709 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
710 dev->wiphy.max_scan_ssids);
711 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
712 dev->wiphy.max_sched_scan_ssids);
713 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
714 dev->wiphy.max_scan_ie_len);
715 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
716 dev->wiphy.max_sched_scan_ie_len);
718 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
719 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
720 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
721 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
723 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
724 sizeof(u32) * dev->wiphy.n_cipher_suites,
725 dev->wiphy.cipher_suites);
727 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
728 dev->wiphy.max_num_pmkids);
730 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
731 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
733 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
734 dev->wiphy.available_antennas_tx);
735 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
736 dev->wiphy.available_antennas_rx);
738 if ((dev->wiphy.available_antennas_tx ||
739 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
740 u32 tx_ant = 0, rx_ant = 0;
742 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
744 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
745 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
749 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
750 dev->wiphy.interface_modes))
751 goto nla_put_failure;
753 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
755 goto nla_put_failure;
757 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
758 if (!dev->wiphy.bands[band])
761 nl_band = nla_nest_start(msg, band);
763 goto nla_put_failure;
766 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
767 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
768 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
769 &dev->wiphy.bands[band]->ht_cap.mcs);
770 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
771 dev->wiphy.bands[band]->ht_cap.cap);
772 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
773 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
774 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
775 dev->wiphy.bands[band]->ht_cap.ampdu_density);
778 /* add frequencies */
779 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
781 goto nla_put_failure;
783 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
784 nl_freq = nla_nest_start(msg, i);
786 goto nla_put_failure;
788 chan = &dev->wiphy.bands[band]->channels[i];
790 if (nl80211_msg_put_channel(msg, chan))
791 goto nla_put_failure;
793 nla_nest_end(msg, nl_freq);
796 nla_nest_end(msg, nl_freqs);
799 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
801 goto nla_put_failure;
803 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
804 nl_rate = nla_nest_start(msg, i);
806 goto nla_put_failure;
808 rate = &dev->wiphy.bands[band]->bitrates[i];
809 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
811 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
813 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
815 nla_nest_end(msg, nl_rate);
818 nla_nest_end(msg, nl_rates);
820 nla_nest_end(msg, nl_band);
822 nla_nest_end(msg, nl_bands);
824 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
826 goto nla_put_failure;
831 if (dev->ops->op) { \
833 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
837 CMD(add_virtual_intf, NEW_INTERFACE);
838 CMD(change_virtual_intf, SET_INTERFACE);
839 CMD(add_key, NEW_KEY);
840 CMD(add_beacon, NEW_BEACON);
841 CMD(add_station, NEW_STATION);
842 CMD(add_mpath, NEW_MPATH);
843 CMD(update_mesh_config, SET_MESH_CONFIG);
844 CMD(change_bss, SET_BSS);
845 CMD(auth, AUTHENTICATE);
846 CMD(assoc, ASSOCIATE);
847 CMD(deauth, DEAUTHENTICATE);
848 CMD(disassoc, DISASSOCIATE);
849 CMD(join_ibss, JOIN_IBSS);
850 CMD(join_mesh, JOIN_MESH);
851 CMD(set_pmksa, SET_PMKSA);
852 CMD(del_pmksa, DEL_PMKSA);
853 CMD(flush_pmksa, FLUSH_PMKSA);
854 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
855 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
857 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
858 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
860 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
862 CMD(set_channel, SET_CHANNEL);
863 CMD(set_wds_peer, SET_WDS_PEER);
864 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
865 CMD(sched_scan_start, START_SCHED_SCAN);
869 if (dev->ops->connect || dev->ops->auth) {
871 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
874 if (dev->ops->disconnect || dev->ops->deauth) {
876 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
879 nla_nest_end(msg, nl_cmds);
881 if (dev->ops->remain_on_channel)
882 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
883 dev->wiphy.max_remain_on_channel_duration);
885 if (dev->ops->mgmt_tx_cancel_wait)
886 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
890 struct nlattr *nl_ftypes, *nl_ifs;
891 enum nl80211_iftype ift;
893 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
895 goto nla_put_failure;
897 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
898 nl_ftypes = nla_nest_start(msg, ift);
900 goto nla_put_failure;
902 stypes = mgmt_stypes[ift].tx;
905 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
906 (i << 4) | IEEE80211_FTYPE_MGMT);
910 nla_nest_end(msg, nl_ftypes);
913 nla_nest_end(msg, nl_ifs);
915 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
917 goto nla_put_failure;
919 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
920 nl_ftypes = nla_nest_start(msg, ift);
922 goto nla_put_failure;
924 stypes = mgmt_stypes[ift].rx;
927 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
928 (i << 4) | IEEE80211_FTYPE_MGMT);
932 nla_nest_end(msg, nl_ftypes);
934 nla_nest_end(msg, nl_ifs);
937 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
938 struct nlattr *nl_wowlan;
940 nl_wowlan = nla_nest_start(msg,
941 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
943 goto nla_put_failure;
945 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
946 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
947 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
948 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
949 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
950 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
951 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
952 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
953 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
954 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
955 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
956 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
957 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
958 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
959 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
960 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
961 if (dev->wiphy.wowlan.n_patterns) {
962 struct nl80211_wowlan_pattern_support pat = {
963 .max_patterns = dev->wiphy.wowlan.n_patterns,
965 dev->wiphy.wowlan.pattern_min_len,
967 dev->wiphy.wowlan.pattern_max_len,
969 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
973 nla_nest_end(msg, nl_wowlan);
976 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
977 dev->wiphy.software_iftypes))
978 goto nla_put_failure;
980 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
981 goto nla_put_failure;
983 return genlmsg_end(msg, hdr);
986 genlmsg_cancel(msg, hdr);
990 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
993 int start = cb->args[0];
994 struct cfg80211_registered_device *dev;
996 mutex_lock(&cfg80211_mutex);
997 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
998 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1002 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1003 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1009 mutex_unlock(&cfg80211_mutex);
1016 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1018 struct sk_buff *msg;
1019 struct cfg80211_registered_device *dev = info->user_ptr[0];
1021 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1025 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1030 return genlmsg_reply(msg, info);
1033 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1034 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1035 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1036 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1037 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1038 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1041 static int parse_txq_params(struct nlattr *tb[],
1042 struct ieee80211_txq_params *txq_params)
1044 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1045 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1046 !tb[NL80211_TXQ_ATTR_AIFS])
1049 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1050 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1051 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1052 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1053 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1058 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1061 * You can only set the channel explicitly for AP, mesh
1062 * and WDS type interfaces; all others have their channel
1063 * managed via their respective "establish a connection"
1064 * command (connect, join, ...)
1066 * Monitors are special as they are normally slaved to
1067 * whatever else is going on, so they behave as though
1068 * you tried setting the wiphy channel itself.
1071 wdev->iftype == NL80211_IFTYPE_AP ||
1072 wdev->iftype == NL80211_IFTYPE_WDS ||
1073 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1074 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1075 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1078 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1079 struct wireless_dev *wdev,
1080 struct genl_info *info)
1082 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1086 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1089 if (!nl80211_can_set_dev_channel(wdev))
1092 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1093 channel_type = nla_get_u32(info->attrs[
1094 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1095 if (channel_type != NL80211_CHAN_NO_HT &&
1096 channel_type != NL80211_CHAN_HT20 &&
1097 channel_type != NL80211_CHAN_HT40PLUS &&
1098 channel_type != NL80211_CHAN_HT40MINUS)
1102 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1104 mutex_lock(&rdev->devlist_mtx);
1107 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1110 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1112 mutex_unlock(&rdev->devlist_mtx);
1117 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1119 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1120 struct net_device *netdev = info->user_ptr[1];
1122 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1125 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1128 struct net_device *dev = info->user_ptr[1];
1129 struct wireless_dev *wdev = dev->ieee80211_ptr;
1132 if (!info->attrs[NL80211_ATTR_MAC])
1135 if (netif_running(dev))
1138 if (!rdev->ops->set_wds_peer)
1141 if (wdev->iftype != NL80211_IFTYPE_WDS)
1144 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1145 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1149 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1151 struct cfg80211_registered_device *rdev;
1152 struct net_device *netdev = NULL;
1153 struct wireless_dev *wdev;
1154 int result = 0, rem_txq_params = 0;
1155 struct nlattr *nl_txq_params;
1157 u8 retry_short = 0, retry_long = 0;
1158 u32 frag_threshold = 0, rts_threshold = 0;
1159 u8 coverage_class = 0;
1162 * Try to find the wiphy and netdev. Normally this
1163 * function shouldn't need the netdev, but this is
1164 * done for backward compatibility -- previously
1165 * setting the channel was done per wiphy, but now
1166 * it is per netdev. Previous userland like hostapd
1167 * also passed a netdev to set_wiphy, so that it is
1168 * possible to let that go to the right netdev!
1170 mutex_lock(&cfg80211_mutex);
1172 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1173 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1175 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1176 if (netdev && netdev->ieee80211_ptr) {
1177 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1178 mutex_lock(&rdev->mtx);
1184 rdev = __cfg80211_rdev_from_info(info);
1186 mutex_unlock(&cfg80211_mutex);
1187 return PTR_ERR(rdev);
1193 mutex_lock(&rdev->mtx);
1194 } else if (netif_running(netdev) &&
1195 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1196 wdev = netdev->ieee80211_ptr;
1201 * end workaround code, by now the rdev is available
1202 * and locked, and wdev may or may not be NULL.
1205 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1206 result = cfg80211_dev_rename(
1207 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1209 mutex_unlock(&cfg80211_mutex);
1214 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1215 struct ieee80211_txq_params txq_params;
1216 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1218 if (!rdev->ops->set_txq_params) {
1219 result = -EOPNOTSUPP;
1223 nla_for_each_nested(nl_txq_params,
1224 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1226 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1227 nla_data(nl_txq_params),
1228 nla_len(nl_txq_params),
1230 result = parse_txq_params(tb, &txq_params);
1234 result = rdev->ops->set_txq_params(&rdev->wiphy,
1241 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1242 result = __nl80211_set_channel(rdev, wdev, info);
1247 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1248 enum nl80211_tx_power_setting type;
1251 if (!rdev->ops->set_tx_power) {
1252 result = -EOPNOTSUPP;
1256 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1257 type = nla_get_u32(info->attrs[idx]);
1259 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1260 (type != NL80211_TX_POWER_AUTOMATIC)) {
1265 if (type != NL80211_TX_POWER_AUTOMATIC) {
1266 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1267 mbm = nla_get_u32(info->attrs[idx]);
1270 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1275 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1276 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1278 if ((!rdev->wiphy.available_antennas_tx &&
1279 !rdev->wiphy.available_antennas_rx) ||
1280 !rdev->ops->set_antenna) {
1281 result = -EOPNOTSUPP;
1285 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1286 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1288 /* reject antenna configurations which don't match the
1289 * available antenna masks, except for the "all" mask */
1290 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1291 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1296 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1297 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1299 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1306 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1307 retry_short = nla_get_u8(
1308 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1309 if (retry_short == 0) {
1313 changed |= WIPHY_PARAM_RETRY_SHORT;
1316 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1317 retry_long = nla_get_u8(
1318 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1319 if (retry_long == 0) {
1323 changed |= WIPHY_PARAM_RETRY_LONG;
1326 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1327 frag_threshold = nla_get_u32(
1328 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1329 if (frag_threshold < 256) {
1333 if (frag_threshold != (u32) -1) {
1335 * Fragments (apart from the last one) are required to
1336 * have even length. Make the fragmentation code
1337 * simpler by stripping LSB should someone try to use
1338 * odd threshold value.
1340 frag_threshold &= ~0x1;
1342 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1345 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1346 rts_threshold = nla_get_u32(
1347 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1348 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1351 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1352 coverage_class = nla_get_u8(
1353 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1354 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1358 u8 old_retry_short, old_retry_long;
1359 u32 old_frag_threshold, old_rts_threshold;
1360 u8 old_coverage_class;
1362 if (!rdev->ops->set_wiphy_params) {
1363 result = -EOPNOTSUPP;
1367 old_retry_short = rdev->wiphy.retry_short;
1368 old_retry_long = rdev->wiphy.retry_long;
1369 old_frag_threshold = rdev->wiphy.frag_threshold;
1370 old_rts_threshold = rdev->wiphy.rts_threshold;
1371 old_coverage_class = rdev->wiphy.coverage_class;
1373 if (changed & WIPHY_PARAM_RETRY_SHORT)
1374 rdev->wiphy.retry_short = retry_short;
1375 if (changed & WIPHY_PARAM_RETRY_LONG)
1376 rdev->wiphy.retry_long = retry_long;
1377 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1378 rdev->wiphy.frag_threshold = frag_threshold;
1379 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1380 rdev->wiphy.rts_threshold = rts_threshold;
1381 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1382 rdev->wiphy.coverage_class = coverage_class;
1384 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1386 rdev->wiphy.retry_short = old_retry_short;
1387 rdev->wiphy.retry_long = old_retry_long;
1388 rdev->wiphy.frag_threshold = old_frag_threshold;
1389 rdev->wiphy.rts_threshold = old_rts_threshold;
1390 rdev->wiphy.coverage_class = old_coverage_class;
1395 mutex_unlock(&rdev->mtx);
1402 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1403 struct cfg80211_registered_device *rdev,
1404 struct net_device *dev)
1408 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1412 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1413 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1414 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1415 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1417 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1418 rdev->devlist_generation ^
1419 (cfg80211_rdev_list_generation << 2));
1421 return genlmsg_end(msg, hdr);
1424 genlmsg_cancel(msg, hdr);
1428 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1432 int wp_start = cb->args[0];
1433 int if_start = cb->args[1];
1434 struct cfg80211_registered_device *rdev;
1435 struct wireless_dev *wdev;
1437 mutex_lock(&cfg80211_mutex);
1438 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1439 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1441 if (wp_idx < wp_start) {
1447 mutex_lock(&rdev->devlist_mtx);
1448 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1449 if (if_idx < if_start) {
1453 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1454 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1455 rdev, wdev->netdev) < 0) {
1456 mutex_unlock(&rdev->devlist_mtx);
1461 mutex_unlock(&rdev->devlist_mtx);
1466 mutex_unlock(&cfg80211_mutex);
1468 cb->args[0] = wp_idx;
1469 cb->args[1] = if_idx;
1474 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1476 struct sk_buff *msg;
1477 struct cfg80211_registered_device *dev = info->user_ptr[0];
1478 struct net_device *netdev = info->user_ptr[1];
1480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1484 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1490 return genlmsg_reply(msg, info);
1493 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1494 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1495 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1496 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1497 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1498 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1501 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1503 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1511 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1512 nla, mntr_flags_policy))
1515 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1517 *mntrflags |= (1<<flag);
1522 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1523 struct net_device *netdev, u8 use_4addr,
1524 enum nl80211_iftype iftype)
1527 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1533 case NL80211_IFTYPE_AP_VLAN:
1534 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1537 case NL80211_IFTYPE_STATION:
1538 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1548 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1551 struct vif_params params;
1553 enum nl80211_iftype otype, ntype;
1554 struct net_device *dev = info->user_ptr[1];
1555 u32 _flags, *flags = NULL;
1556 bool change = false;
1558 memset(¶ms, 0, sizeof(params));
1560 otype = ntype = dev->ieee80211_ptr->iftype;
1562 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1563 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1566 if (ntype > NL80211_IFTYPE_MAX)
1570 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1571 struct wireless_dev *wdev = dev->ieee80211_ptr;
1573 if (ntype != NL80211_IFTYPE_MESH_POINT)
1575 if (netif_running(dev))
1579 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1580 IEEE80211_MAX_MESH_ID_LEN);
1581 wdev->mesh_id_up_len =
1582 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1583 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1584 wdev->mesh_id_up_len);
1588 if (info->attrs[NL80211_ATTR_4ADDR]) {
1589 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1591 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1595 params.use_4addr = -1;
1598 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1599 if (ntype != NL80211_IFTYPE_MONITOR)
1601 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1611 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1615 if (!err && params.use_4addr != -1)
1616 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1621 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1624 struct vif_params params;
1625 struct net_device *dev;
1627 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1630 memset(¶ms, 0, sizeof(params));
1632 if (!info->attrs[NL80211_ATTR_IFNAME])
1635 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1636 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1637 if (type > NL80211_IFTYPE_MAX)
1641 if (!rdev->ops->add_virtual_intf ||
1642 !(rdev->wiphy.interface_modes & (1 << type)))
1645 if (info->attrs[NL80211_ATTR_4ADDR]) {
1646 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1647 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1652 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1653 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1655 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1656 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1657 type, err ? NULL : &flags, ¶ms);
1659 return PTR_ERR(dev);
1661 if (type == NL80211_IFTYPE_MESH_POINT &&
1662 info->attrs[NL80211_ATTR_MESH_ID]) {
1663 struct wireless_dev *wdev = dev->ieee80211_ptr;
1666 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1667 IEEE80211_MAX_MESH_ID_LEN);
1668 wdev->mesh_id_up_len =
1669 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1670 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1671 wdev->mesh_id_up_len);
1678 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1680 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1681 struct net_device *dev = info->user_ptr[1];
1683 if (!rdev->ops->del_virtual_intf)
1686 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1689 struct get_key_cookie {
1690 struct sk_buff *msg;
1695 static void get_key_callback(void *c, struct key_params *params)
1698 struct get_key_cookie *cookie = c;
1701 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1702 params->key_len, params->key);
1705 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1706 params->seq_len, params->seq);
1709 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1712 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1714 goto nla_put_failure;
1717 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1718 params->key_len, params->key);
1721 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1722 params->seq_len, params->seq);
1725 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1728 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1730 nla_nest_end(cookie->msg, key);
1737 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1741 struct net_device *dev = info->user_ptr[1];
1743 const u8 *mac_addr = NULL;
1745 struct get_key_cookie cookie = {
1749 struct sk_buff *msg;
1751 if (info->attrs[NL80211_ATTR_KEY_IDX])
1752 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1757 if (info->attrs[NL80211_ATTR_MAC])
1758 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1760 pairwise = !!mac_addr;
1761 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1762 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1763 if (kt >= NUM_NL80211_KEYTYPES)
1765 if (kt != NL80211_KEYTYPE_GROUP &&
1766 kt != NL80211_KEYTYPE_PAIRWISE)
1768 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1771 if (!rdev->ops->get_key)
1774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1778 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1779 NL80211_CMD_NEW_KEY);
1781 return PTR_ERR(hdr);
1784 cookie.idx = key_idx;
1786 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1787 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1789 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1791 if (pairwise && mac_addr &&
1792 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1795 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1796 mac_addr, &cookie, get_key_callback);
1802 goto nla_put_failure;
1804 genlmsg_end(msg, hdr);
1805 return genlmsg_reply(msg, info);
1814 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1816 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1817 struct key_parse key;
1819 struct net_device *dev = info->user_ptr[1];
1821 err = nl80211_parse_key(info, &key);
1828 /* only support setting default key */
1829 if (!key.def && !key.defmgmt)
1832 wdev_lock(dev->ieee80211_ptr);
1835 if (!rdev->ops->set_default_key) {
1840 err = nl80211_key_allowed(dev->ieee80211_ptr);
1844 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1845 key.def_uni, key.def_multi);
1850 #ifdef CONFIG_CFG80211_WEXT
1851 dev->ieee80211_ptr->wext.default_key = key.idx;
1854 if (key.def_uni || !key.def_multi) {
1859 if (!rdev->ops->set_default_mgmt_key) {
1864 err = nl80211_key_allowed(dev->ieee80211_ptr);
1868 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1873 #ifdef CONFIG_CFG80211_WEXT
1874 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1879 wdev_unlock(dev->ieee80211_ptr);
1884 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1888 struct net_device *dev = info->user_ptr[1];
1889 struct key_parse key;
1890 const u8 *mac_addr = NULL;
1892 err = nl80211_parse_key(info, &key);
1899 if (info->attrs[NL80211_ATTR_MAC])
1900 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1902 if (key.type == -1) {
1904 key.type = NL80211_KEYTYPE_PAIRWISE;
1906 key.type = NL80211_KEYTYPE_GROUP;
1910 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1911 key.type != NL80211_KEYTYPE_GROUP)
1914 if (!rdev->ops->add_key)
1917 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1918 key.type == NL80211_KEYTYPE_PAIRWISE,
1922 wdev_lock(dev->ieee80211_ptr);
1923 err = nl80211_key_allowed(dev->ieee80211_ptr);
1925 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1926 key.type == NL80211_KEYTYPE_PAIRWISE,
1928 wdev_unlock(dev->ieee80211_ptr);
1933 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1937 struct net_device *dev = info->user_ptr[1];
1938 u8 *mac_addr = NULL;
1939 struct key_parse key;
1941 err = nl80211_parse_key(info, &key);
1945 if (info->attrs[NL80211_ATTR_MAC])
1946 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1948 if (key.type == -1) {
1950 key.type = NL80211_KEYTYPE_PAIRWISE;
1952 key.type = NL80211_KEYTYPE_GROUP;
1956 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1957 key.type != NL80211_KEYTYPE_GROUP)
1960 if (!rdev->ops->del_key)
1963 wdev_lock(dev->ieee80211_ptr);
1964 err = nl80211_key_allowed(dev->ieee80211_ptr);
1966 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1967 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1971 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1972 key.type == NL80211_KEYTYPE_PAIRWISE,
1975 #ifdef CONFIG_CFG80211_WEXT
1977 if (key.idx == dev->ieee80211_ptr->wext.default_key)
1978 dev->ieee80211_ptr->wext.default_key = -1;
1979 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1980 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1983 wdev_unlock(dev->ieee80211_ptr);
1988 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1990 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1991 struct beacon_parameters *info);
1992 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1993 struct net_device *dev = info->user_ptr[1];
1994 struct wireless_dev *wdev = dev->ieee80211_ptr;
1995 struct beacon_parameters params;
1996 int haveinfo = 0, err;
1998 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
1999 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2000 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2001 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2004 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2005 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2008 memset(¶ms, 0, sizeof(params));
2010 switch (info->genlhdr->cmd) {
2011 case NL80211_CMD_NEW_BEACON:
2012 /* these are required for NEW_BEACON */
2013 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2014 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2015 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2019 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2020 params.dtim_period =
2021 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2023 err = cfg80211_validate_beacon_int(rdev, params.interval);
2028 * In theory, some of these attributes could be required for
2029 * NEW_BEACON, but since they were not used when the command was
2030 * originally added, keep them optional for old user space
2031 * programs to work with drivers that do not need the additional
2034 if (info->attrs[NL80211_ATTR_SSID]) {
2035 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2037 nla_len(info->attrs[NL80211_ATTR_SSID]);
2038 if (params.ssid_len == 0 ||
2039 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2043 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2044 params.hidden_ssid = nla_get_u32(
2045 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2046 if (params.hidden_ssid !=
2047 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2048 params.hidden_ssid !=
2049 NL80211_HIDDEN_SSID_ZERO_LEN &&
2050 params.hidden_ssid !=
2051 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2055 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2057 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2058 params.auth_type = nla_get_u32(
2059 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2060 if (!nl80211_valid_auth_type(params.auth_type))
2063 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2065 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2066 NL80211_MAX_NR_CIPHER_SUITES);
2070 call = rdev->ops->add_beacon;
2072 case NL80211_CMD_SET_BEACON:
2073 call = rdev->ops->set_beacon;
2083 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2084 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2086 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2090 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2091 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2093 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2100 if (info->attrs[NL80211_ATTR_IE]) {
2101 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2102 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2105 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2106 params.proberesp_ies =
2107 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2108 params.proberesp_ies_len =
2109 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2112 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2113 params.assocresp_ies =
2114 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2115 params.assocresp_ies_len =
2116 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2119 err = call(&rdev->wiphy, dev, ¶ms);
2120 if (!err && params.interval)
2121 wdev->beacon_interval = params.interval;
2125 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2128 struct net_device *dev = info->user_ptr[1];
2129 struct wireless_dev *wdev = dev->ieee80211_ptr;
2132 if (!rdev->ops->del_beacon)
2135 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2136 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2139 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2141 wdev->beacon_interval = 0;
2145 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2146 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2147 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2148 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2149 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2150 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2153 static int parse_station_flags(struct genl_info *info,
2154 struct station_parameters *params)
2156 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2161 * Try parsing the new attribute first so userspace
2162 * can specify both for older kernels.
2164 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2166 struct nl80211_sta_flag_update *sta_flags;
2168 sta_flags = nla_data(nla);
2169 params->sta_flags_mask = sta_flags->mask;
2170 params->sta_flags_set = sta_flags->set;
2171 if ((params->sta_flags_mask |
2172 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2177 /* if present, parse the old attribute */
2179 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2183 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2184 nla, sta_flags_policy))
2187 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2188 params->sta_flags_mask &= ~1;
2190 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2192 params->sta_flags_set |= (1<<flag);
2197 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2200 struct nlattr *rate;
2203 rate = nla_nest_start(msg, attr);
2205 goto nla_put_failure;
2207 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2208 bitrate = cfg80211_calculate_bitrate(info);
2210 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2212 if (info->flags & RATE_INFO_FLAGS_MCS)
2213 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2214 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2215 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2216 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2217 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2219 nla_nest_end(msg, rate);
2226 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2227 int flags, struct net_device *dev,
2228 const u8 *mac_addr, struct station_info *sinfo)
2231 struct nlattr *sinfoattr, *bss_param;
2233 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2237 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2238 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2240 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2242 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2244 goto nla_put_failure;
2245 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2246 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2247 sinfo->connected_time);
2248 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2249 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2250 sinfo->inactive_time);
2251 if (sinfo->filled & STATION_INFO_RX_BYTES)
2252 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2254 if (sinfo->filled & STATION_INFO_TX_BYTES)
2255 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2257 if (sinfo->filled & STATION_INFO_LLID)
2258 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2260 if (sinfo->filled & STATION_INFO_PLID)
2261 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2263 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2264 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2265 sinfo->plink_state);
2266 if (sinfo->filled & STATION_INFO_SIGNAL)
2267 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2269 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2270 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2272 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2273 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2274 NL80211_STA_INFO_TX_BITRATE))
2275 goto nla_put_failure;
2277 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2278 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2279 NL80211_STA_INFO_RX_BITRATE))
2280 goto nla_put_failure;
2282 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2283 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2285 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2286 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2288 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2289 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2291 if (sinfo->filled & STATION_INFO_TX_FAILED)
2292 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2294 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2295 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2297 goto nla_put_failure;
2299 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2300 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2301 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2302 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2303 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2305 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2306 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2307 sinfo->bss_param.dtim_period);
2308 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2309 sinfo->bss_param.beacon_interval);
2311 nla_nest_end(msg, bss_param);
2313 nla_nest_end(msg, sinfoattr);
2315 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
2316 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2317 sinfo->assoc_req_ies);
2319 return genlmsg_end(msg, hdr);
2322 genlmsg_cancel(msg, hdr);
2326 static int nl80211_dump_station(struct sk_buff *skb,
2327 struct netlink_callback *cb)
2329 struct station_info sinfo;
2330 struct cfg80211_registered_device *dev;
2331 struct net_device *netdev;
2332 u8 mac_addr[ETH_ALEN];
2333 int sta_idx = cb->args[1];
2336 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2340 if (!dev->ops->dump_station) {
2346 memset(&sinfo, 0, sizeof(sinfo));
2347 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2354 if (nl80211_send_station(skb,
2355 NETLINK_CB(cb->skb).pid,
2356 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2366 cb->args[1] = sta_idx;
2369 nl80211_finish_netdev_dump(dev);
2374 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2377 struct net_device *dev = info->user_ptr[1];
2378 struct station_info sinfo;
2379 struct sk_buff *msg;
2380 u8 *mac_addr = NULL;
2383 memset(&sinfo, 0, sizeof(sinfo));
2385 if (!info->attrs[NL80211_ATTR_MAC])
2388 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2390 if (!rdev->ops->get_station)
2393 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2401 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2402 dev, mac_addr, &sinfo) < 0) {
2407 return genlmsg_reply(msg, info);
2411 * Get vlan interface making sure it is running and on the right wiphy.
2413 static int get_vlan(struct genl_info *info,
2414 struct cfg80211_registered_device *rdev,
2415 struct net_device **vlan)
2417 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2421 *vlan = dev_get_by_index(genl_info_net(info),
2422 nla_get_u32(vlanattr));
2425 if (!(*vlan)->ieee80211_ptr)
2427 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2429 if (!netif_running(*vlan))
2435 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2439 struct net_device *dev = info->user_ptr[1];
2440 struct station_parameters params;
2441 u8 *mac_addr = NULL;
2443 memset(¶ms, 0, sizeof(params));
2445 params.listen_interval = -1;
2446 params.plink_state = -1;
2448 if (info->attrs[NL80211_ATTR_STA_AID])
2451 if (!info->attrs[NL80211_ATTR_MAC])
2454 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2456 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2457 params.supported_rates =
2458 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2459 params.supported_rates_len =
2460 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2463 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2464 params.listen_interval =
2465 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2467 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2469 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2471 if (parse_station_flags(info, ¶ms))
2474 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2475 params.plink_action =
2476 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2478 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2479 params.plink_state =
2480 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2482 err = get_vlan(info, rdev, ¶ms.vlan);
2486 /* validate settings */
2489 switch (dev->ieee80211_ptr->iftype) {
2490 case NL80211_IFTYPE_AP:
2491 case NL80211_IFTYPE_AP_VLAN:
2492 case NL80211_IFTYPE_P2P_GO:
2493 /* disallow mesh-specific things */
2494 if (params.plink_action)
2497 case NL80211_IFTYPE_P2P_CLIENT:
2498 case NL80211_IFTYPE_STATION:
2499 /* disallow everything but AUTHORIZED flag */
2500 if (params.plink_action)
2504 if (params.supported_rates)
2508 if (params.listen_interval >= 0)
2510 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2513 case NL80211_IFTYPE_MESH_POINT:
2514 /* disallow things mesh doesn't support */
2519 if (params.listen_interval >= 0)
2521 if (params.sta_flags_mask &
2522 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2523 BIT(NL80211_STA_FLAG_MFP) |
2524 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2534 if (!rdev->ops->change_station) {
2539 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2543 dev_put(params.vlan);
2548 static struct nla_policy
2549 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2550 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2551 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2554 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2558 struct net_device *dev = info->user_ptr[1];
2559 struct station_parameters params;
2560 u8 *mac_addr = NULL;
2562 memset(¶ms, 0, sizeof(params));
2564 if (!info->attrs[NL80211_ATTR_MAC])
2567 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2570 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2573 if (!info->attrs[NL80211_ATTR_STA_AID])
2576 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2577 params.supported_rates =
2578 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2579 params.supported_rates_len =
2580 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2581 params.listen_interval =
2582 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2584 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2585 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2588 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2590 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2592 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2593 params.plink_action =
2594 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2596 if (parse_station_flags(info, ¶ms))
2599 /* parse WME attributes if sta is WME capable */
2600 if ((params.sta_flags_set & NL80211_STA_FLAG_WME) &&
2601 info->attrs[NL80211_ATTR_STA_WME]) {
2602 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2605 nla = info->attrs[NL80211_ATTR_STA_WME];
2606 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2607 nl80211_sta_wme_policy);
2611 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2612 params.uapsd_queues =
2613 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2615 if (tb[NL80211_STA_WME_MAX_SP])
2617 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2620 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2621 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2622 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2623 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2626 err = get_vlan(info, rdev, ¶ms.vlan);
2630 /* validate settings */
2633 if (!rdev->ops->add_station) {
2638 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2642 dev_put(params.vlan);
2646 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2649 struct net_device *dev = info->user_ptr[1];
2650 u8 *mac_addr = NULL;
2652 if (info->attrs[NL80211_ATTR_MAC])
2653 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2655 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2656 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2657 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2658 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2661 if (!rdev->ops->del_station)
2664 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2667 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2668 int flags, struct net_device *dev,
2669 u8 *dst, u8 *next_hop,
2670 struct mpath_info *pinfo)
2673 struct nlattr *pinfoattr;
2675 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2679 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2680 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2681 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2683 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2685 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2687 goto nla_put_failure;
2688 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2689 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2691 if (pinfo->filled & MPATH_INFO_SN)
2692 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2694 if (pinfo->filled & MPATH_INFO_METRIC)
2695 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2697 if (pinfo->filled & MPATH_INFO_EXPTIME)
2698 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2700 if (pinfo->filled & MPATH_INFO_FLAGS)
2701 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2703 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2704 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2705 pinfo->discovery_timeout);
2706 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2707 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2708 pinfo->discovery_retries);
2710 nla_nest_end(msg, pinfoattr);
2712 return genlmsg_end(msg, hdr);
2715 genlmsg_cancel(msg, hdr);
2719 static int nl80211_dump_mpath(struct sk_buff *skb,
2720 struct netlink_callback *cb)
2722 struct mpath_info pinfo;
2723 struct cfg80211_registered_device *dev;
2724 struct net_device *netdev;
2726 u8 next_hop[ETH_ALEN];
2727 int path_idx = cb->args[1];
2730 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2734 if (!dev->ops->dump_mpath) {
2739 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2745 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2746 dst, next_hop, &pinfo);
2752 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2753 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2754 netdev, dst, next_hop,
2763 cb->args[1] = path_idx;
2766 nl80211_finish_netdev_dump(dev);
2770 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2774 struct net_device *dev = info->user_ptr[1];
2775 struct mpath_info pinfo;
2776 struct sk_buff *msg;
2778 u8 next_hop[ETH_ALEN];
2780 memset(&pinfo, 0, sizeof(pinfo));
2782 if (!info->attrs[NL80211_ATTR_MAC])
2785 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2787 if (!rdev->ops->get_mpath)
2790 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2793 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2797 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2801 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2802 dev, dst, next_hop, &pinfo) < 0) {
2807 return genlmsg_reply(msg, info);
2810 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2813 struct net_device *dev = info->user_ptr[1];
2815 u8 *next_hop = NULL;
2817 if (!info->attrs[NL80211_ATTR_MAC])
2820 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2823 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2824 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2826 if (!rdev->ops->change_mpath)
2829 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2832 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2835 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2838 struct net_device *dev = info->user_ptr[1];
2840 u8 *next_hop = NULL;
2842 if (!info->attrs[NL80211_ATTR_MAC])
2845 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2848 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2849 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2851 if (!rdev->ops->add_mpath)
2854 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2857 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2860 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2863 struct net_device *dev = info->user_ptr[1];
2866 if (info->attrs[NL80211_ATTR_MAC])
2867 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2869 if (!rdev->ops->del_mpath)
2872 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2875 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2878 struct net_device *dev = info->user_ptr[1];
2879 struct bss_parameters params;
2881 memset(¶ms, 0, sizeof(params));
2882 /* default to not changing parameters */
2883 params.use_cts_prot = -1;
2884 params.use_short_preamble = -1;
2885 params.use_short_slot_time = -1;
2886 params.ap_isolate = -1;
2887 params.ht_opmode = -1;
2889 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2890 params.use_cts_prot =
2891 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2892 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2893 params.use_short_preamble =
2894 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2895 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2896 params.use_short_slot_time =
2897 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2898 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2899 params.basic_rates =
2900 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2901 params.basic_rates_len =
2902 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2904 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2905 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2906 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2908 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
2910 if (!rdev->ops->change_bss)
2913 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2914 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2917 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2920 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2921 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2922 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2923 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2924 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2925 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2926 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2929 static int parse_reg_rule(struct nlattr *tb[],
2930 struct ieee80211_reg_rule *reg_rule)
2932 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2933 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2935 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2937 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2939 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2941 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2943 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2946 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2948 freq_range->start_freq_khz =
2949 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2950 freq_range->end_freq_khz =
2951 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2952 freq_range->max_bandwidth_khz =
2953 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2955 power_rule->max_eirp =
2956 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2958 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2959 power_rule->max_antenna_gain =
2960 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2965 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2971 * You should only get this when cfg80211 hasn't yet initialized
2972 * completely when built-in to the kernel right between the time
2973 * window between nl80211_init() and regulatory_init(), if that is
2976 mutex_lock(&cfg80211_mutex);
2977 if (unlikely(!cfg80211_regdomain)) {
2978 mutex_unlock(&cfg80211_mutex);
2979 return -EINPROGRESS;
2981 mutex_unlock(&cfg80211_mutex);
2983 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2986 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2988 r = regulatory_hint_user(data);
2993 static int nl80211_get_mesh_config(struct sk_buff *skb,
2994 struct genl_info *info)
2996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2997 struct net_device *dev = info->user_ptr[1];
2998 struct wireless_dev *wdev = dev->ieee80211_ptr;
2999 struct mesh_config cur_params;
3002 struct nlattr *pinfoattr;
3003 struct sk_buff *msg;
3005 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3008 if (!rdev->ops->get_mesh_config)
3012 /* If not connected, get default parameters */
3013 if (!wdev->mesh_id_len)
3014 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3016 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3023 /* Draw up a netlink message to send back */
3024 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3027 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3028 NL80211_CMD_GET_MESH_CONFIG);
3031 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3033 goto nla_put_failure;
3034 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3035 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3036 cur_params.dot11MeshRetryTimeout);
3037 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3038 cur_params.dot11MeshConfirmTimeout);
3039 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3040 cur_params.dot11MeshHoldingTimeout);
3041 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3042 cur_params.dot11MeshMaxPeerLinks);
3043 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3044 cur_params.dot11MeshMaxRetries);
3045 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3046 cur_params.dot11MeshTTL);
3047 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3048 cur_params.element_ttl);
3049 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3050 cur_params.auto_open_plinks);
3051 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3052 cur_params.dot11MeshHWMPmaxPREQretries);
3053 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3054 cur_params.path_refresh_time);
3055 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3056 cur_params.min_discovery_timeout);
3057 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3058 cur_params.dot11MeshHWMPactivePathTimeout);
3059 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3060 cur_params.dot11MeshHWMPpreqMinInterval);
3061 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3062 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
3063 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3064 cur_params.dot11MeshHWMPRootMode);
3065 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3066 cur_params.dot11MeshHWMPRannInterval);
3067 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3068 cur_params.dot11MeshGateAnnouncementProtocol);
3069 nla_nest_end(msg, pinfoattr);
3070 genlmsg_end(msg, hdr);
3071 return genlmsg_reply(msg, info);
3074 genlmsg_cancel(msg, hdr);
3080 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3081 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3082 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3083 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3084 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3085 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3086 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3087 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3088 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3090 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3091 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3092 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3093 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3094 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3095 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3096 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3097 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3098 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3101 static const struct nla_policy
3102 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3103 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3104 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3105 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3106 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3107 .len = IEEE80211_MAX_DATA_LEN },
3108 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3111 static int nl80211_parse_mesh_config(struct genl_info *info,
3112 struct mesh_config *cfg,
3115 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3118 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3120 if (table[attr_num]) {\
3121 cfg->param = nla_fn(table[attr_num]); \
3122 mask |= (1 << (attr_num - 1)); \
3127 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3129 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3130 info->attrs[NL80211_ATTR_MESH_CONFIG],
3131 nl80211_meshconf_params_policy))
3134 /* This makes sure that there aren't more than 32 mesh config
3135 * parameters (otherwise our bitfield scheme would not work.) */
3136 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3138 /* Fill in the params struct */
3139 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3140 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3141 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3142 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3143 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3144 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3145 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3146 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3147 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3148 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3149 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3150 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3151 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3152 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3153 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3154 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3155 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3156 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3158 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3159 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3160 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3161 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3163 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3164 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3166 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3167 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3169 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3170 dot11MeshHWMPnetDiameterTraversalTime,
3171 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3173 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3174 dot11MeshHWMPRootMode, mask,
3175 NL80211_MESHCONF_HWMP_ROOTMODE,
3177 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3178 dot11MeshHWMPRannInterval, mask,
3179 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3181 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3182 dot11MeshGateAnnouncementProtocol, mask,
3183 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3190 #undef FILL_IN_MESH_PARAM_IF_SET
3193 static int nl80211_parse_mesh_setup(struct genl_info *info,
3194 struct mesh_setup *setup)
3196 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3198 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3200 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3201 info->attrs[NL80211_ATTR_MESH_SETUP],
3202 nl80211_mesh_setup_params_policy))
3205 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3206 setup->path_sel_proto =
3207 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3208 IEEE80211_PATH_PROTOCOL_VENDOR :
3209 IEEE80211_PATH_PROTOCOL_HWMP;
3211 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3212 setup->path_metric =
3213 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3214 IEEE80211_PATH_METRIC_VENDOR :
3215 IEEE80211_PATH_METRIC_AIRTIME;
3218 if (tb[NL80211_MESH_SETUP_IE]) {
3219 struct nlattr *ieattr =
3220 tb[NL80211_MESH_SETUP_IE];
3221 if (!is_valid_ie_attr(ieattr))
3223 setup->ie = nla_data(ieattr);
3224 setup->ie_len = nla_len(ieattr);
3226 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3227 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3232 static int nl80211_update_mesh_config(struct sk_buff *skb,
3233 struct genl_info *info)
3235 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3236 struct net_device *dev = info->user_ptr[1];
3237 struct wireless_dev *wdev = dev->ieee80211_ptr;
3238 struct mesh_config cfg;
3242 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3245 if (!rdev->ops->update_mesh_config)
3248 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3253 if (!wdev->mesh_id_len)
3257 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3265 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3267 struct sk_buff *msg;
3269 struct nlattr *nl_reg_rules;
3273 mutex_lock(&cfg80211_mutex);
3275 if (!cfg80211_regdomain)
3278 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3284 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3285 NL80211_CMD_GET_REG);
3289 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3290 cfg80211_regdomain->alpha2);
3292 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3294 goto nla_put_failure;
3296 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3297 struct nlattr *nl_reg_rule;
3298 const struct ieee80211_reg_rule *reg_rule;
3299 const struct ieee80211_freq_range *freq_range;
3300 const struct ieee80211_power_rule *power_rule;
3302 reg_rule = &cfg80211_regdomain->reg_rules[i];
3303 freq_range = ®_rule->freq_range;
3304 power_rule = ®_rule->power_rule;
3306 nl_reg_rule = nla_nest_start(msg, i);
3308 goto nla_put_failure;
3310 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3312 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3313 freq_range->start_freq_khz);
3314 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3315 freq_range->end_freq_khz);
3316 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3317 freq_range->max_bandwidth_khz);
3318 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3319 power_rule->max_antenna_gain);
3320 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3321 power_rule->max_eirp);
3323 nla_nest_end(msg, nl_reg_rule);
3326 nla_nest_end(msg, nl_reg_rules);
3328 genlmsg_end(msg, hdr);
3329 err = genlmsg_reply(msg, info);
3333 genlmsg_cancel(msg, hdr);
3338 mutex_unlock(&cfg80211_mutex);
3342 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3344 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3345 struct nlattr *nl_reg_rule;
3346 char *alpha2 = NULL;
3347 int rem_reg_rules = 0, r = 0;
3348 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3349 struct ieee80211_regdomain *rd = NULL;
3351 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3354 if (!info->attrs[NL80211_ATTR_REG_RULES])
3357 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3359 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3362 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3366 mutex_lock(&cfg80211_mutex);
3368 if (!reg_is_valid_request(alpha2)) {
3373 size_of_regd = sizeof(struct ieee80211_regdomain) +
3374 (num_rules * sizeof(struct ieee80211_reg_rule));
3376 rd = kzalloc(size_of_regd, GFP_KERNEL);
3382 rd->n_reg_rules = num_rules;
3383 rd->alpha2[0] = alpha2[0];
3384 rd->alpha2[1] = alpha2[1];
3386 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3388 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3389 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3391 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3397 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3403 BUG_ON(rule_idx != num_rules);
3407 mutex_unlock(&cfg80211_mutex);
3412 mutex_unlock(&cfg80211_mutex);
3417 static int validate_scan_freqs(struct nlattr *freqs)
3419 struct nlattr *attr1, *attr2;
3420 int n_channels = 0, tmp1, tmp2;
3422 nla_for_each_nested(attr1, freqs, tmp1) {
3425 * Some hardware has a limited channel list for
3426 * scanning, and it is pretty much nonsensical
3427 * to scan for a channel twice, so disallow that
3428 * and don't require drivers to check that the
3429 * channel list they get isn't longer than what
3430 * they can scan, as long as they can scan all
3431 * the channels they registered at once.
3433 nla_for_each_nested(attr2, freqs, tmp2)
3434 if (attr1 != attr2 &&
3435 nla_get_u32(attr1) == nla_get_u32(attr2))
3442 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3445 struct net_device *dev = info->user_ptr[1];
3446 struct cfg80211_scan_request *request;
3447 struct nlattr *attr;
3448 struct wiphy *wiphy;
3449 int err, tmp, n_ssids = 0, n_channels, i;
3452 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3455 wiphy = &rdev->wiphy;
3457 if (!rdev->ops->scan)
3463 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3464 n_channels = validate_scan_freqs(
3465 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3469 enum ieee80211_band band;
3472 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3473 if (wiphy->bands[band])
3474 n_channels += wiphy->bands[band]->n_channels;
3477 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3478 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3481 if (n_ssids > wiphy->max_scan_ssids)
3484 if (info->attrs[NL80211_ATTR_IE])
3485 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3489 if (ie_len > wiphy->max_scan_ie_len)
3492 request = kzalloc(sizeof(*request)
3493 + sizeof(*request->ssids) * n_ssids
3494 + sizeof(*request->channels) * n_channels
3495 + ie_len, GFP_KERNEL);
3500 request->ssids = (void *)&request->channels[n_channels];
3501 request->n_ssids = n_ssids;
3504 request->ie = (void *)(request->ssids + n_ssids);
3506 request->ie = (void *)(request->channels + n_channels);
3510 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3511 /* user specified, bail out if channel not found */
3512 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3513 struct ieee80211_channel *chan;
3515 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3522 /* ignore disabled channels */
3523 if (chan->flags & IEEE80211_CHAN_DISABLED)
3526 request->channels[i] = chan;
3530 enum ieee80211_band band;
3533 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3535 if (!wiphy->bands[band])
3537 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3538 struct ieee80211_channel *chan;
3540 chan = &wiphy->bands[band]->channels[j];
3542 if (chan->flags & IEEE80211_CHAN_DISABLED)
3545 request->channels[i] = chan;
3556 request->n_channels = i;
3559 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3560 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3561 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3565 request->ssids[i].ssid_len = nla_len(attr);
3566 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3571 if (info->attrs[NL80211_ATTR_IE]) {
3572 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3573 memcpy((void *)request->ie,
3574 nla_data(info->attrs[NL80211_ATTR_IE]),
3578 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3579 if (wiphy->bands[i])
3581 (1 << wiphy->bands[i]->n_bitrates) - 1;
3583 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3584 nla_for_each_nested(attr,
3585 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3587 enum ieee80211_band band = nla_type(attr);
3589 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
3593 err = ieee80211_get_ratemask(wiphy->bands[band],
3596 &request->rates[band]);
3603 request->wiphy = &rdev->wiphy;
3605 rdev->scan_req = request;
3606 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3609 nl80211_send_scan_start(rdev, dev);
3613 rdev->scan_req = NULL;
3620 static int nl80211_start_sched_scan(struct sk_buff *skb,
3621 struct genl_info *info)
3623 struct cfg80211_sched_scan_request *request;
3624 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3625 struct net_device *dev = info->user_ptr[1];
3626 struct nlattr *attr;
3627 struct wiphy *wiphy;
3628 int err, tmp, n_ssids = 0, n_channels, i;
3630 enum ieee80211_band band;
3633 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3634 !rdev->ops->sched_scan_start)
3637 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3640 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3643 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3647 wiphy = &rdev->wiphy;
3649 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3650 n_channels = validate_scan_freqs(
3651 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3657 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3658 if (wiphy->bands[band])
3659 n_channels += wiphy->bands[band]->n_channels;
3662 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3663 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3667 if (n_ssids > wiphy->max_sched_scan_ssids)
3670 if (info->attrs[NL80211_ATTR_IE])
3671 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3675 if (ie_len > wiphy->max_sched_scan_ie_len)
3678 mutex_lock(&rdev->sched_scan_mtx);
3680 if (rdev->sched_scan_req) {
3685 request = kzalloc(sizeof(*request)
3686 + sizeof(*request->ssids) * n_ssids
3687 + sizeof(*request->channels) * n_channels
3688 + ie_len, GFP_KERNEL);
3695 request->ssids = (void *)&request->channels[n_channels];
3696 request->n_ssids = n_ssids;
3699 request->ie = (void *)(request->ssids + n_ssids);
3701 request->ie = (void *)(request->channels + n_channels);
3705 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3706 /* user specified, bail out if channel not found */
3707 nla_for_each_nested(attr,
3708 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3710 struct ieee80211_channel *chan;
3712 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3719 /* ignore disabled channels */
3720 if (chan->flags & IEEE80211_CHAN_DISABLED)
3723 request->channels[i] = chan;
3728 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3730 if (!wiphy->bands[band])
3732 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3733 struct ieee80211_channel *chan;
3735 chan = &wiphy->bands[band]->channels[j];
3737 if (chan->flags & IEEE80211_CHAN_DISABLED)
3740 request->channels[i] = chan;
3751 request->n_channels = i;
3754 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3755 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3757 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3761 request->ssids[i].ssid_len = nla_len(attr);
3762 memcpy(request->ssids[i].ssid, nla_data(attr),
3768 if (info->attrs[NL80211_ATTR_IE]) {
3769 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3770 memcpy((void *)request->ie,
3771 nla_data(info->attrs[NL80211_ATTR_IE]),
3776 request->wiphy = &rdev->wiphy;
3777 request->interval = interval;
3779 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3781 rdev->sched_scan_req = request;
3782 nl80211_send_sched_scan(rdev, dev,
3783 NL80211_CMD_START_SCHED_SCAN);
3790 mutex_unlock(&rdev->sched_scan_mtx);
3794 static int nl80211_stop_sched_scan(struct sk_buff *skb,
3795 struct genl_info *info)
3797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3800 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3801 !rdev->ops->sched_scan_stop)
3804 mutex_lock(&rdev->sched_scan_mtx);
3805 err = __cfg80211_stop_sched_scan(rdev, false);
3806 mutex_unlock(&rdev->sched_scan_mtx);
3811 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3813 struct cfg80211_registered_device *rdev,
3814 struct wireless_dev *wdev,
3815 struct cfg80211_internal_bss *intbss)
3817 struct cfg80211_bss *res = &intbss->pub;
3822 ASSERT_WDEV_LOCK(wdev);
3824 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
3825 NL80211_CMD_NEW_SCAN_RESULTS);
3829 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3831 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3832 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3834 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3836 goto nla_put_failure;
3837 if (!is_zero_ether_addr(res->bssid))
3838 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3839 if (res->information_elements && res->len_information_elements)
3840 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3841 res->len_information_elements,
3842 res->information_elements);
3843 if (res->beacon_ies && res->len_beacon_ies &&
3844 res->beacon_ies != res->information_elements)
3845 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3846 res->len_beacon_ies, res->beacon_ies);
3848 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3849 if (res->beacon_interval)
3850 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3851 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3852 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3853 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3854 jiffies_to_msecs(jiffies - intbss->ts));
3856 switch (rdev->wiphy.signal_type) {
3857 case CFG80211_SIGNAL_TYPE_MBM:
3858 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3860 case CFG80211_SIGNAL_TYPE_UNSPEC:
3861 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3867 switch (wdev->iftype) {
3868 case NL80211_IFTYPE_P2P_CLIENT:
3869 case NL80211_IFTYPE_STATION:
3870 if (intbss == wdev->current_bss)
3871 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3872 NL80211_BSS_STATUS_ASSOCIATED);
3873 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3874 if (intbss != wdev->auth_bsses[i])
3876 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3877 NL80211_BSS_STATUS_AUTHENTICATED);
3881 case NL80211_IFTYPE_ADHOC:
3882 if (intbss == wdev->current_bss)
3883 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3884 NL80211_BSS_STATUS_IBSS_JOINED);
3890 nla_nest_end(msg, bss);
3892 return genlmsg_end(msg, hdr);
3895 genlmsg_cancel(msg, hdr);
3899 static int nl80211_dump_scan(struct sk_buff *skb,
3900 struct netlink_callback *cb)
3902 struct cfg80211_registered_device *rdev;
3903 struct net_device *dev;
3904 struct cfg80211_internal_bss *scan;
3905 struct wireless_dev *wdev;
3906 int start = cb->args[1], idx = 0;
3909 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3913 wdev = dev->ieee80211_ptr;
3916 spin_lock_bh(&rdev->bss_lock);
3917 cfg80211_bss_expire(rdev);
3919 cb->seq = rdev->bss_generation;
3921 list_for_each_entry(scan, &rdev->bss_list, list) {
3924 if (nl80211_send_bss(skb, cb,
3925 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3926 rdev, wdev, scan) < 0) {
3932 spin_unlock_bh(&rdev->bss_lock);
3936 nl80211_finish_netdev_dump(rdev);
3941 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3942 int flags, struct net_device *dev,
3943 struct survey_info *survey)
3946 struct nlattr *infoattr;
3948 hdr = nl80211hdr_put(msg, pid, seq, flags,
3949 NL80211_CMD_NEW_SURVEY_RESULTS);
3953 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3955 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3957 goto nla_put_failure;
3959 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3960 survey->channel->center_freq);
3961 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3962 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3964 if (survey->filled & SURVEY_INFO_IN_USE)
3965 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
3966 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3967 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3968 survey->channel_time);
3969 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3970 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3971 survey->channel_time_busy);
3972 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3973 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3974 survey->channel_time_ext_busy);
3975 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3976 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3977 survey->channel_time_rx);
3978 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3979 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3980 survey->channel_time_tx);
3982 nla_nest_end(msg, infoattr);
3984 return genlmsg_end(msg, hdr);
3987 genlmsg_cancel(msg, hdr);
3991 static int nl80211_dump_survey(struct sk_buff *skb,
3992 struct netlink_callback *cb)
3994 struct survey_info survey;
3995 struct cfg80211_registered_device *dev;
3996 struct net_device *netdev;
3997 int survey_idx = cb->args[1];
4000 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4004 if (!dev->ops->dump_survey) {
4010 struct ieee80211_channel *chan;
4012 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4019 /* Survey without a channel doesn't make sense */
4020 if (!survey.channel) {
4025 chan = ieee80211_get_channel(&dev->wiphy,
4026 survey.channel->center_freq);
4027 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4032 if (nl80211_send_survey(skb,
4033 NETLINK_CB(cb->skb).pid,
4034 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4042 cb->args[1] = survey_idx;
4045 nl80211_finish_netdev_dump(dev);
4049 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4051 return auth_type <= NL80211_AUTHTYPE_MAX;
4054 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4056 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4057 NL80211_WPA_VERSION_2));
4060 static bool nl80211_valid_akm_suite(u32 akm)
4062 return akm == WLAN_AKM_SUITE_8021X ||
4063 akm == WLAN_AKM_SUITE_PSK;
4066 static bool nl80211_valid_cipher_suite(u32 cipher)
4068 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
4069 cipher == WLAN_CIPHER_SUITE_WEP104 ||
4070 cipher == WLAN_CIPHER_SUITE_TKIP ||
4071 cipher == WLAN_CIPHER_SUITE_CCMP ||
4072 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
4076 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4078 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4079 struct net_device *dev = info->user_ptr[1];
4080 struct ieee80211_channel *chan;
4081 const u8 *bssid, *ssid, *ie = NULL;
4082 int err, ssid_len, ie_len = 0;
4083 enum nl80211_auth_type auth_type;
4084 struct key_parse key;
4085 bool local_state_change;
4087 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4090 if (!info->attrs[NL80211_ATTR_MAC])
4093 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4096 if (!info->attrs[NL80211_ATTR_SSID])
4099 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4102 err = nl80211_parse_key(info, &key);
4107 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4109 if (!key.p.key || !key.p.key_len)
4111 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4112 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4113 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4114 key.p.key_len != WLAN_KEY_LEN_WEP104))
4126 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4127 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4136 if (!rdev->ops->auth)
4139 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4140 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4143 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4144 chan = ieee80211_get_channel(&rdev->wiphy,
4145 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4146 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4149 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4150 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4152 if (info->attrs[NL80211_ATTR_IE]) {
4153 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4154 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4157 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4158 if (!nl80211_valid_auth_type(auth_type))
4161 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4163 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4164 ssid, ssid_len, ie, ie_len,
4165 key.p.key, key.p.key_len, key.idx,
4166 local_state_change);
4169 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4170 struct genl_info *info,
4171 struct cfg80211_crypto_settings *settings,
4174 memset(settings, 0, sizeof(*settings));
4176 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4178 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4180 proto = nla_get_u16(
4181 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4182 settings->control_port_ethertype = cpu_to_be16(proto);
4183 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4186 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4187 settings->control_port_no_encrypt = true;
4189 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4191 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4195 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4196 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4197 settings->n_ciphers_pairwise = len / sizeof(u32);
4199 if (len % sizeof(u32))
4202 if (settings->n_ciphers_pairwise > cipher_limit)
4205 memcpy(settings->ciphers_pairwise, data, len);
4207 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4208 if (!nl80211_valid_cipher_suite(
4209 settings->ciphers_pairwise[i]))
4213 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4214 settings->cipher_group =
4215 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4216 if (!nl80211_valid_cipher_suite(settings->cipher_group))
4220 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4221 settings->wpa_versions =
4222 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4223 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4227 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4231 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4232 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4233 settings->n_akm_suites = len / sizeof(u32);
4235 if (len % sizeof(u32))
4238 memcpy(settings->akm_suites, data, len);
4240 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4241 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
4248 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4251 struct net_device *dev = info->user_ptr[1];
4252 struct cfg80211_crypto_settings crypto;
4253 struct ieee80211_channel *chan;
4254 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4255 int err, ssid_len, ie_len = 0;
4256 bool use_mfp = false;
4258 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4261 if (!info->attrs[NL80211_ATTR_MAC] ||
4262 !info->attrs[NL80211_ATTR_SSID] ||
4263 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4266 if (!rdev->ops->assoc)
4269 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4270 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4273 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4275 chan = ieee80211_get_channel(&rdev->wiphy,
4276 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4277 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4280 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4281 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4283 if (info->attrs[NL80211_ATTR_IE]) {
4284 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4285 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4288 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4289 enum nl80211_mfp mfp =
4290 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4291 if (mfp == NL80211_MFP_REQUIRED)
4293 else if (mfp != NL80211_MFP_NO)
4297 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4298 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4300 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4302 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4303 ssid, ssid_len, ie, ie_len, use_mfp,
4309 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4312 struct net_device *dev = info->user_ptr[1];
4313 const u8 *ie = NULL, *bssid;
4316 bool local_state_change;
4318 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4321 if (!info->attrs[NL80211_ATTR_MAC])
4324 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4327 if (!rdev->ops->deauth)
4330 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4331 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4334 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4336 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4337 if (reason_code == 0) {
4338 /* Reason Code 0 is reserved */
4342 if (info->attrs[NL80211_ATTR_IE]) {
4343 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4344 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4347 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4349 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4350 local_state_change);
4353 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4356 struct net_device *dev = info->user_ptr[1];
4357 const u8 *ie = NULL, *bssid;
4360 bool local_state_change;
4362 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4365 if (!info->attrs[NL80211_ATTR_MAC])
4368 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4371 if (!rdev->ops->disassoc)
4374 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4375 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4378 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4380 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4381 if (reason_code == 0) {
4382 /* Reason Code 0 is reserved */
4386 if (info->attrs[NL80211_ATTR_IE]) {
4387 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4388 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4391 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4393 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4394 local_state_change);
4398 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4399 int mcast_rate[IEEE80211_NUM_BANDS],
4402 struct wiphy *wiphy = &rdev->wiphy;
4406 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4407 struct ieee80211_supported_band *sband;
4409 sband = wiphy->bands[band];
4413 for (i = 0; i < sband->n_bitrates; i++) {
4414 if (sband->bitrates[i].bitrate == rateval) {
4415 mcast_rate[band] = i + 1;
4425 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4428 struct net_device *dev = info->user_ptr[1];
4429 struct cfg80211_ibss_params ibss;
4430 struct wiphy *wiphy;
4431 struct cfg80211_cached_keys *connkeys = NULL;
4434 memset(&ibss, 0, sizeof(ibss));
4436 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4439 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4440 !info->attrs[NL80211_ATTR_SSID] ||
4441 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4444 ibss.beacon_interval = 100;
4446 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4447 ibss.beacon_interval =
4448 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4449 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4453 if (!rdev->ops->join_ibss)
4456 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4459 wiphy = &rdev->wiphy;
4461 if (info->attrs[NL80211_ATTR_MAC])
4462 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4463 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4464 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4466 if (info->attrs[NL80211_ATTR_IE]) {
4467 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4468 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4471 ibss.channel = ieee80211_get_channel(wiphy,
4472 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4473 if (!ibss.channel ||
4474 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4475 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4478 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4479 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4481 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4483 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4485 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4486 struct ieee80211_supported_band *sband =
4487 wiphy->bands[ibss.channel->band];
4490 err = ieee80211_get_ratemask(sband, rates, n_rates,
4496 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4497 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4498 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4501 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4502 connkeys = nl80211_parse_connkeys(rdev,
4503 info->attrs[NL80211_ATTR_KEYS]);
4504 if (IS_ERR(connkeys))
4505 return PTR_ERR(connkeys);
4508 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4514 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4516 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4517 struct net_device *dev = info->user_ptr[1];
4519 if (!rdev->ops->leave_ibss)
4522 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4525 return cfg80211_leave_ibss(rdev, dev, false);
4528 #ifdef CONFIG_NL80211_TESTMODE
4529 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4533 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4535 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4538 if (!info->attrs[NL80211_ATTR_TESTDATA])
4542 if (rdev->ops->testmode_cmd) {
4543 rdev->testmode_info = info;
4544 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4545 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4546 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4547 rdev->testmode_info = NULL;
4553 static int nl80211_testmode_dump(struct sk_buff *skb,
4554 struct netlink_callback *cb)
4556 struct cfg80211_registered_device *dev;
4564 * 0 is a valid index, but not valid for args[0],
4565 * so we need to offset by 1.
4567 phy_idx = cb->args[0] - 1;
4569 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4570 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4574 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4576 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4577 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4579 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4583 data = nla_data((void *)cb->args[1]);
4584 data_len = nla_len((void *)cb->args[1]);
4587 mutex_lock(&cfg80211_mutex);
4588 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4590 mutex_unlock(&cfg80211_mutex);
4593 cfg80211_lock_rdev(dev);
4594 mutex_unlock(&cfg80211_mutex);
4596 if (!dev->ops->testmode_dump) {
4602 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4603 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4604 NL80211_CMD_TESTMODE);
4605 struct nlattr *tmdata;
4607 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4608 genlmsg_cancel(skb, hdr);
4612 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4614 genlmsg_cancel(skb, hdr);
4617 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4619 nla_nest_end(skb, tmdata);
4621 if (err == -ENOBUFS || err == -ENOENT) {
4622 genlmsg_cancel(skb, hdr);
4625 genlmsg_cancel(skb, hdr);
4629 genlmsg_end(skb, hdr);
4634 cb->args[0] = phy_idx + 1;
4636 cfg80211_unlock_rdev(dev);
4640 static struct sk_buff *
4641 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4642 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4644 struct sk_buff *skb;
4646 struct nlattr *data;
4648 skb = nlmsg_new(approxlen + 100, gfp);
4652 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4658 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4659 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4661 ((void **)skb->cb)[0] = rdev;
4662 ((void **)skb->cb)[1] = hdr;
4663 ((void **)skb->cb)[2] = data;
4672 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4675 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4677 if (WARN_ON(!rdev->testmode_info))
4680 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4681 rdev->testmode_info->snd_pid,
4682 rdev->testmode_info->snd_seq,
4685 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4687 int cfg80211_testmode_reply(struct sk_buff *skb)
4689 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4690 void *hdr = ((void **)skb->cb)[1];
4691 struct nlattr *data = ((void **)skb->cb)[2];
4693 if (WARN_ON(!rdev->testmode_info)) {
4698 nla_nest_end(skb, data);
4699 genlmsg_end(skb, hdr);
4700 return genlmsg_reply(skb, rdev->testmode_info);
4702 EXPORT_SYMBOL(cfg80211_testmode_reply);
4704 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4705 int approxlen, gfp_t gfp)
4707 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4709 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4711 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4713 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4715 void *hdr = ((void **)skb->cb)[1];
4716 struct nlattr *data = ((void **)skb->cb)[2];
4718 nla_nest_end(skb, data);
4719 genlmsg_end(skb, hdr);
4720 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4722 EXPORT_SYMBOL(cfg80211_testmode_event);
4725 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4728 struct net_device *dev = info->user_ptr[1];
4729 struct cfg80211_connect_params connect;
4730 struct wiphy *wiphy;
4731 struct cfg80211_cached_keys *connkeys = NULL;
4734 memset(&connect, 0, sizeof(connect));
4736 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4739 if (!info->attrs[NL80211_ATTR_SSID] ||
4740 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4743 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4745 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4746 if (!nl80211_valid_auth_type(connect.auth_type))
4749 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4751 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4753 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
4754 NL80211_MAX_NR_CIPHER_SUITES);
4758 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4759 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4762 wiphy = &rdev->wiphy;
4764 if (info->attrs[NL80211_ATTR_MAC])
4765 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4766 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4767 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4769 if (info->attrs[NL80211_ATTR_IE]) {
4770 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4771 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4774 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4776 ieee80211_get_channel(wiphy,
4777 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4778 if (!connect.channel ||
4779 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4783 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4784 connkeys = nl80211_parse_connkeys(rdev,
4785 info->attrs[NL80211_ATTR_KEYS]);
4786 if (IS_ERR(connkeys))
4787 return PTR_ERR(connkeys);
4790 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4796 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4798 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4799 struct net_device *dev = info->user_ptr[1];
4802 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4803 reason = WLAN_REASON_DEAUTH_LEAVING;
4805 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4810 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4811 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4814 return cfg80211_disconnect(rdev, dev, reason, true);
4817 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4824 if (!info->attrs[NL80211_ATTR_PID])
4827 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4829 net = get_net_ns_by_pid(pid);
4831 return PTR_ERR(net);
4835 /* check if anything to do */
4836 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4837 err = cfg80211_switch_netns(rdev, net);
4843 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4846 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4847 struct cfg80211_pmksa *pmksa) = NULL;
4848 struct net_device *dev = info->user_ptr[1];
4849 struct cfg80211_pmksa pmksa;
4851 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4853 if (!info->attrs[NL80211_ATTR_MAC])
4856 if (!info->attrs[NL80211_ATTR_PMKID])
4859 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4860 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4862 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4863 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4866 switch (info->genlhdr->cmd) {
4867 case NL80211_CMD_SET_PMKSA:
4868 rdev_ops = rdev->ops->set_pmksa;
4870 case NL80211_CMD_DEL_PMKSA:
4871 rdev_ops = rdev->ops->del_pmksa;
4881 return rdev_ops(&rdev->wiphy, dev, &pmksa);
4884 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4887 struct net_device *dev = info->user_ptr[1];
4889 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4890 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4893 if (!rdev->ops->flush_pmksa)
4896 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4899 static int nl80211_remain_on_channel(struct sk_buff *skb,
4900 struct genl_info *info)
4902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4903 struct net_device *dev = info->user_ptr[1];
4904 struct ieee80211_channel *chan;
4905 struct sk_buff *msg;
4908 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4912 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4913 !info->attrs[NL80211_ATTR_DURATION])
4916 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4919 * We should be on that channel for at least one jiffie,
4920 * and more than 5 seconds seems excessive.
4922 if (!duration || !msecs_to_jiffies(duration) ||
4923 duration > rdev->wiphy.max_remain_on_channel_duration)
4926 if (!rdev->ops->remain_on_channel)
4929 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4930 channel_type = nla_get_u32(
4931 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4932 if (channel_type != NL80211_CHAN_NO_HT &&
4933 channel_type != NL80211_CHAN_HT20 &&
4934 channel_type != NL80211_CHAN_HT40PLUS &&
4935 channel_type != NL80211_CHAN_HT40MINUS)
4939 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4940 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4944 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4948 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4949 NL80211_CMD_REMAIN_ON_CHANNEL);
4956 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4957 channel_type, duration, &cookie);
4962 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4964 genlmsg_end(msg, hdr);
4966 return genlmsg_reply(msg, info);
4975 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4976 struct genl_info *info)
4978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4979 struct net_device *dev = info->user_ptr[1];
4982 if (!info->attrs[NL80211_ATTR_COOKIE])
4985 if (!rdev->ops->cancel_remain_on_channel)
4988 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4990 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
4993 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4994 u8 *rates, u8 rates_len)
4999 for (i = 0; i < rates_len; i++) {
5000 int rate = (rates[i] & 0x7f) * 5;
5002 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5003 struct ieee80211_rate *srate =
5004 &sband->bitrates[ridx];
5005 if (rate == srate->bitrate) {
5010 if (ridx == sband->n_bitrates)
5011 return 0; /* rate not found */
5017 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5018 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5019 .len = NL80211_MAX_SUPP_RATES },
5022 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5023 struct genl_info *info)
5025 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5027 struct cfg80211_bitrate_mask mask;
5029 struct net_device *dev = info->user_ptr[1];
5030 struct nlattr *tx_rates;
5031 struct ieee80211_supported_band *sband;
5033 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5036 if (!rdev->ops->set_bitrate_mask)
5039 memset(&mask, 0, sizeof(mask));
5040 /* Default to all rates enabled */
5041 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5042 sband = rdev->wiphy.bands[i];
5043 mask.control[i].legacy =
5044 sband ? (1 << sband->n_bitrates) - 1 : 0;
5048 * The nested attribute uses enum nl80211_band as the index. This maps
5049 * directly to the enum ieee80211_band values used in cfg80211.
5051 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5053 enum ieee80211_band band = nla_type(tx_rates);
5054 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5056 sband = rdev->wiphy.bands[band];
5059 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5060 nla_len(tx_rates), nl80211_txattr_policy);
5061 if (tb[NL80211_TXRATE_LEGACY]) {
5062 mask.control[band].legacy = rateset_to_mask(
5064 nla_data(tb[NL80211_TXRATE_LEGACY]),
5065 nla_len(tb[NL80211_TXRATE_LEGACY]));
5066 if (mask.control[band].legacy == 0)
5071 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5074 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5076 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5077 struct net_device *dev = info->user_ptr[1];
5078 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5080 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5083 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5084 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5086 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5087 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5088 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5089 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5090 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5091 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5092 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5095 /* not much point in registering if we can't reply */
5096 if (!rdev->ops->mgmt_tx)
5099 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
5101 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5102 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
5105 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
5107 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5108 struct net_device *dev = info->user_ptr[1];
5109 struct ieee80211_channel *chan;
5110 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5111 bool channel_type_valid = false;
5116 struct sk_buff *msg;
5117 unsigned int wait = 0;
5120 if (!info->attrs[NL80211_ATTR_FRAME] ||
5121 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5124 if (!rdev->ops->mgmt_tx)
5127 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5128 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5129 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5130 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5131 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5132 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
5133 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5136 if (info->attrs[NL80211_ATTR_DURATION]) {
5137 if (!rdev->ops->mgmt_tx_cancel_wait)
5139 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5142 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5143 channel_type = nla_get_u32(
5144 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5145 if (channel_type != NL80211_CHAN_NO_HT &&
5146 channel_type != NL80211_CHAN_HT20 &&
5147 channel_type != NL80211_CHAN_HT40PLUS &&
5148 channel_type != NL80211_CHAN_HT40MINUS)
5150 channel_type_valid = true;
5153 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5155 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5156 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5164 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5171 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5172 channel_type_valid, wait,
5173 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5174 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5179 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5181 genlmsg_end(msg, hdr);
5182 return genlmsg_reply(msg, info);
5191 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5194 struct net_device *dev = info->user_ptr[1];
5197 if (!info->attrs[NL80211_ATTR_COOKIE])
5200 if (!rdev->ops->mgmt_tx_cancel_wait)
5203 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5204 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5205 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5206 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5207 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5208 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5211 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5213 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5216 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5219 struct wireless_dev *wdev;
5220 struct net_device *dev = info->user_ptr[1];
5225 if (!info->attrs[NL80211_ATTR_PS_STATE])
5228 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5230 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5233 wdev = dev->ieee80211_ptr;
5235 if (!rdev->ops->set_power_mgmt)
5238 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5240 if (state == wdev->ps)
5243 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5250 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5252 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5253 enum nl80211_ps_state ps_state;
5254 struct wireless_dev *wdev;
5255 struct net_device *dev = info->user_ptr[1];
5256 struct sk_buff *msg;
5260 wdev = dev->ieee80211_ptr;
5262 if (!rdev->ops->set_power_mgmt)
5265 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5269 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5270 NL80211_CMD_GET_POWER_SAVE);
5277 ps_state = NL80211_PS_ENABLED;
5279 ps_state = NL80211_PS_DISABLED;
5281 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5283 genlmsg_end(msg, hdr);
5284 return genlmsg_reply(msg, info);
5293 static struct nla_policy
5294 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5295 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5296 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5297 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5300 static int nl80211_set_cqm_rssi(struct genl_info *info,
5301 s32 threshold, u32 hysteresis)
5303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5304 struct wireless_dev *wdev;
5305 struct net_device *dev = info->user_ptr[1];
5310 wdev = dev->ieee80211_ptr;
5312 if (!rdev->ops->set_cqm_rssi_config)
5315 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5316 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5319 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5320 threshold, hysteresis);
5323 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5325 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5329 cqm = info->attrs[NL80211_ATTR_CQM];
5335 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5336 nl80211_attr_cqm_policy);
5340 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5341 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5344 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5345 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5346 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5354 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5357 struct net_device *dev = info->user_ptr[1];
5358 struct mesh_config cfg;
5359 struct mesh_setup setup;
5362 /* start with default */
5363 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5364 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5366 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5367 /* and parse parameters if given */
5368 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5373 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5374 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5377 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5378 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5380 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5381 /* parse additional setup parameters if given */
5382 err = nl80211_parse_mesh_setup(info, &setup);
5387 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5390 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5392 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5393 struct net_device *dev = info->user_ptr[1];
5395 return cfg80211_leave_mesh(rdev, dev);
5398 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5400 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5401 struct sk_buff *msg;
5404 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5411 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5412 NL80211_CMD_GET_WOWLAN);
5414 goto nla_put_failure;
5417 struct nlattr *nl_wowlan;
5419 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5421 goto nla_put_failure;
5423 if (rdev->wowlan->any)
5424 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5425 if (rdev->wowlan->disconnect)
5426 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5427 if (rdev->wowlan->magic_pkt)
5428 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5429 if (rdev->wowlan->gtk_rekey_failure)
5430 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5431 if (rdev->wowlan->eap_identity_req)
5432 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5433 if (rdev->wowlan->four_way_handshake)
5434 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5435 if (rdev->wowlan->rfkill_release)
5436 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
5437 if (rdev->wowlan->n_patterns) {
5438 struct nlattr *nl_pats, *nl_pat;
5441 nl_pats = nla_nest_start(msg,
5442 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5444 goto nla_put_failure;
5446 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5447 nl_pat = nla_nest_start(msg, i + 1);
5449 goto nla_put_failure;
5450 pat_len = rdev->wowlan->patterns[i].pattern_len;
5451 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5452 DIV_ROUND_UP(pat_len, 8),
5453 rdev->wowlan->patterns[i].mask);
5454 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5456 rdev->wowlan->patterns[i].pattern);
5457 nla_nest_end(msg, nl_pat);
5459 nla_nest_end(msg, nl_pats);
5462 nla_nest_end(msg, nl_wowlan);
5465 genlmsg_end(msg, hdr);
5466 return genlmsg_reply(msg, info);
5473 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5476 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5477 struct cfg80211_wowlan no_triggers = {};
5478 struct cfg80211_wowlan new_triggers = {};
5479 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5482 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5485 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5488 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5489 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5490 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5491 nl80211_wowlan_policy);
5495 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5496 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5498 new_triggers.any = true;
5501 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5502 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5504 new_triggers.disconnect = true;
5507 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5508 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5510 new_triggers.magic_pkt = true;
5513 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5516 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5517 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5519 new_triggers.gtk_rekey_failure = true;
5522 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5523 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5525 new_triggers.eap_identity_req = true;
5528 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5529 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5531 new_triggers.four_way_handshake = true;
5534 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5535 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5537 new_triggers.rfkill_release = true;
5540 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5543 int rem, pat_len, mask_len;
5544 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5546 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5549 if (n_patterns > wowlan->n_patterns)
5552 new_triggers.patterns = kcalloc(n_patterns,
5553 sizeof(new_triggers.patterns[0]),
5555 if (!new_triggers.patterns)
5558 new_triggers.n_patterns = n_patterns;
5561 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5563 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5564 nla_data(pat), nla_len(pat), NULL);
5566 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5567 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5569 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5570 mask_len = DIV_ROUND_UP(pat_len, 8);
5571 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5574 if (pat_len > wowlan->pattern_max_len ||
5575 pat_len < wowlan->pattern_min_len)
5578 new_triggers.patterns[i].mask =
5579 kmalloc(mask_len + pat_len, GFP_KERNEL);
5580 if (!new_triggers.patterns[i].mask) {
5584 new_triggers.patterns[i].pattern =
5585 new_triggers.patterns[i].mask + mask_len;
5586 memcpy(new_triggers.patterns[i].mask,
5587 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5589 new_triggers.patterns[i].pattern_len = pat_len;
5590 memcpy(new_triggers.patterns[i].pattern,
5591 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5597 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5598 struct cfg80211_wowlan *ntrig;
5599 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5605 cfg80211_rdev_free_wowlan(rdev);
5606 rdev->wowlan = ntrig;
5609 cfg80211_rdev_free_wowlan(rdev);
5610 rdev->wowlan = NULL;
5615 for (i = 0; i < new_triggers.n_patterns; i++)
5616 kfree(new_triggers.patterns[i].mask);
5617 kfree(new_triggers.patterns);
5621 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5624 struct net_device *dev = info->user_ptr[1];
5625 struct wireless_dev *wdev = dev->ieee80211_ptr;
5626 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5627 struct cfg80211_gtk_rekey_data rekey_data;
5630 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5633 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5634 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5635 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5636 nl80211_rekey_policy);
5640 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5642 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5644 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5647 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5649 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5651 memcpy(rekey_data.replay_ctr,
5652 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5653 NL80211_REPLAY_CTR_LEN);
5656 if (!wdev->current_bss) {
5661 if (!rdev->ops->set_rekey_data) {
5666 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5672 #define NL80211_FLAG_NEED_WIPHY 0x01
5673 #define NL80211_FLAG_NEED_NETDEV 0x02
5674 #define NL80211_FLAG_NEED_RTNL 0x04
5675 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5676 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5677 NL80211_FLAG_CHECK_NETDEV_UP)
5679 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5680 struct genl_info *info)
5682 struct cfg80211_registered_device *rdev;
5683 struct net_device *dev;
5685 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5690 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5691 rdev = cfg80211_get_dev_from_info(info);
5695 return PTR_ERR(rdev);
5697 info->user_ptr[0] = rdev;
5698 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5699 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5705 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5706 !netif_running(dev)) {
5707 cfg80211_unlock_rdev(rdev);
5713 info->user_ptr[0] = rdev;
5714 info->user_ptr[1] = dev;
5720 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5721 struct genl_info *info)
5723 if (info->user_ptr[0])
5724 cfg80211_unlock_rdev(info->user_ptr[0]);
5725 if (info->user_ptr[1])
5726 dev_put(info->user_ptr[1]);
5727 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5731 static struct genl_ops nl80211_ops[] = {
5733 .cmd = NL80211_CMD_GET_WIPHY,
5734 .doit = nl80211_get_wiphy,
5735 .dumpit = nl80211_dump_wiphy,
5736 .policy = nl80211_policy,
5737 /* can be retrieved by unprivileged users */
5738 .internal_flags = NL80211_FLAG_NEED_WIPHY,
5741 .cmd = NL80211_CMD_SET_WIPHY,
5742 .doit = nl80211_set_wiphy,
5743 .policy = nl80211_policy,
5744 .flags = GENL_ADMIN_PERM,
5745 .internal_flags = NL80211_FLAG_NEED_RTNL,
5748 .cmd = NL80211_CMD_GET_INTERFACE,
5749 .doit = nl80211_get_interface,
5750 .dumpit = nl80211_dump_interface,
5751 .policy = nl80211_policy,
5752 /* can be retrieved by unprivileged users */
5753 .internal_flags = NL80211_FLAG_NEED_NETDEV,
5756 .cmd = NL80211_CMD_SET_INTERFACE,
5757 .doit = nl80211_set_interface,
5758 .policy = nl80211_policy,
5759 .flags = GENL_ADMIN_PERM,
5760 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5761 NL80211_FLAG_NEED_RTNL,
5764 .cmd = NL80211_CMD_NEW_INTERFACE,
5765 .doit = nl80211_new_interface,
5766 .policy = nl80211_policy,
5767 .flags = GENL_ADMIN_PERM,
5768 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5769 NL80211_FLAG_NEED_RTNL,
5772 .cmd = NL80211_CMD_DEL_INTERFACE,
5773 .doit = nl80211_del_interface,
5774 .policy = nl80211_policy,
5775 .flags = GENL_ADMIN_PERM,
5776 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5777 NL80211_FLAG_NEED_RTNL,
5780 .cmd = NL80211_CMD_GET_KEY,
5781 .doit = nl80211_get_key,
5782 .policy = nl80211_policy,
5783 .flags = GENL_ADMIN_PERM,
5784 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5785 NL80211_FLAG_NEED_RTNL,
5788 .cmd = NL80211_CMD_SET_KEY,
5789 .doit = nl80211_set_key,
5790 .policy = nl80211_policy,
5791 .flags = GENL_ADMIN_PERM,
5792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5793 NL80211_FLAG_NEED_RTNL,
5796 .cmd = NL80211_CMD_NEW_KEY,
5797 .doit = nl80211_new_key,
5798 .policy = nl80211_policy,
5799 .flags = GENL_ADMIN_PERM,
5800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5801 NL80211_FLAG_NEED_RTNL,
5804 .cmd = NL80211_CMD_DEL_KEY,
5805 .doit = nl80211_del_key,
5806 .policy = nl80211_policy,
5807 .flags = GENL_ADMIN_PERM,
5808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5809 NL80211_FLAG_NEED_RTNL,
5812 .cmd = NL80211_CMD_SET_BEACON,
5813 .policy = nl80211_policy,
5814 .flags = GENL_ADMIN_PERM,
5815 .doit = nl80211_addset_beacon,
5816 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5817 NL80211_FLAG_NEED_RTNL,
5820 .cmd = NL80211_CMD_NEW_BEACON,
5821 .policy = nl80211_policy,
5822 .flags = GENL_ADMIN_PERM,
5823 .doit = nl80211_addset_beacon,
5824 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5825 NL80211_FLAG_NEED_RTNL,
5828 .cmd = NL80211_CMD_DEL_BEACON,
5829 .policy = nl80211_policy,
5830 .flags = GENL_ADMIN_PERM,
5831 .doit = nl80211_del_beacon,
5832 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5833 NL80211_FLAG_NEED_RTNL,
5836 .cmd = NL80211_CMD_GET_STATION,
5837 .doit = nl80211_get_station,
5838 .dumpit = nl80211_dump_station,
5839 .policy = nl80211_policy,
5840 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5841 NL80211_FLAG_NEED_RTNL,
5844 .cmd = NL80211_CMD_SET_STATION,
5845 .doit = nl80211_set_station,
5846 .policy = nl80211_policy,
5847 .flags = GENL_ADMIN_PERM,
5848 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5849 NL80211_FLAG_NEED_RTNL,
5852 .cmd = NL80211_CMD_NEW_STATION,
5853 .doit = nl80211_new_station,
5854 .policy = nl80211_policy,
5855 .flags = GENL_ADMIN_PERM,
5856 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5857 NL80211_FLAG_NEED_RTNL,
5860 .cmd = NL80211_CMD_DEL_STATION,
5861 .doit = nl80211_del_station,
5862 .policy = nl80211_policy,
5863 .flags = GENL_ADMIN_PERM,
5864 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5865 NL80211_FLAG_NEED_RTNL,
5868 .cmd = NL80211_CMD_GET_MPATH,
5869 .doit = nl80211_get_mpath,
5870 .dumpit = nl80211_dump_mpath,
5871 .policy = nl80211_policy,
5872 .flags = GENL_ADMIN_PERM,
5873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5874 NL80211_FLAG_NEED_RTNL,
5877 .cmd = NL80211_CMD_SET_MPATH,
5878 .doit = nl80211_set_mpath,
5879 .policy = nl80211_policy,
5880 .flags = GENL_ADMIN_PERM,
5881 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5882 NL80211_FLAG_NEED_RTNL,
5885 .cmd = NL80211_CMD_NEW_MPATH,
5886 .doit = nl80211_new_mpath,
5887 .policy = nl80211_policy,
5888 .flags = GENL_ADMIN_PERM,
5889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5890 NL80211_FLAG_NEED_RTNL,
5893 .cmd = NL80211_CMD_DEL_MPATH,
5894 .doit = nl80211_del_mpath,
5895 .policy = nl80211_policy,
5896 .flags = GENL_ADMIN_PERM,
5897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5898 NL80211_FLAG_NEED_RTNL,
5901 .cmd = NL80211_CMD_SET_BSS,
5902 .doit = nl80211_set_bss,
5903 .policy = nl80211_policy,
5904 .flags = GENL_ADMIN_PERM,
5905 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5906 NL80211_FLAG_NEED_RTNL,
5909 .cmd = NL80211_CMD_GET_REG,
5910 .doit = nl80211_get_reg,
5911 .policy = nl80211_policy,
5912 /* can be retrieved by unprivileged users */
5915 .cmd = NL80211_CMD_SET_REG,
5916 .doit = nl80211_set_reg,
5917 .policy = nl80211_policy,
5918 .flags = GENL_ADMIN_PERM,
5921 .cmd = NL80211_CMD_REQ_SET_REG,
5922 .doit = nl80211_req_set_reg,
5923 .policy = nl80211_policy,
5924 .flags = GENL_ADMIN_PERM,
5927 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5928 .doit = nl80211_get_mesh_config,
5929 .policy = nl80211_policy,
5930 /* can be retrieved by unprivileged users */
5931 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5932 NL80211_FLAG_NEED_RTNL,
5935 .cmd = NL80211_CMD_SET_MESH_CONFIG,
5936 .doit = nl80211_update_mesh_config,
5937 .policy = nl80211_policy,
5938 .flags = GENL_ADMIN_PERM,
5939 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5940 NL80211_FLAG_NEED_RTNL,
5943 .cmd = NL80211_CMD_TRIGGER_SCAN,
5944 .doit = nl80211_trigger_scan,
5945 .policy = nl80211_policy,
5946 .flags = GENL_ADMIN_PERM,
5947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5948 NL80211_FLAG_NEED_RTNL,
5951 .cmd = NL80211_CMD_GET_SCAN,
5952 .policy = nl80211_policy,
5953 .dumpit = nl80211_dump_scan,
5956 .cmd = NL80211_CMD_START_SCHED_SCAN,
5957 .doit = nl80211_start_sched_scan,
5958 .policy = nl80211_policy,
5959 .flags = GENL_ADMIN_PERM,
5960 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5961 NL80211_FLAG_NEED_RTNL,
5964 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
5965 .doit = nl80211_stop_sched_scan,
5966 .policy = nl80211_policy,
5967 .flags = GENL_ADMIN_PERM,
5968 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5969 NL80211_FLAG_NEED_RTNL,
5972 .cmd = NL80211_CMD_AUTHENTICATE,
5973 .doit = nl80211_authenticate,
5974 .policy = nl80211_policy,
5975 .flags = GENL_ADMIN_PERM,
5976 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5977 NL80211_FLAG_NEED_RTNL,
5980 .cmd = NL80211_CMD_ASSOCIATE,
5981 .doit = nl80211_associate,
5982 .policy = nl80211_policy,
5983 .flags = GENL_ADMIN_PERM,
5984 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5985 NL80211_FLAG_NEED_RTNL,
5988 .cmd = NL80211_CMD_DEAUTHENTICATE,
5989 .doit = nl80211_deauthenticate,
5990 .policy = nl80211_policy,
5991 .flags = GENL_ADMIN_PERM,
5992 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5993 NL80211_FLAG_NEED_RTNL,
5996 .cmd = NL80211_CMD_DISASSOCIATE,
5997 .doit = nl80211_disassociate,
5998 .policy = nl80211_policy,
5999 .flags = GENL_ADMIN_PERM,
6000 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6001 NL80211_FLAG_NEED_RTNL,
6004 .cmd = NL80211_CMD_JOIN_IBSS,
6005 .doit = nl80211_join_ibss,
6006 .policy = nl80211_policy,
6007 .flags = GENL_ADMIN_PERM,
6008 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6009 NL80211_FLAG_NEED_RTNL,
6012 .cmd = NL80211_CMD_LEAVE_IBSS,
6013 .doit = nl80211_leave_ibss,
6014 .policy = nl80211_policy,
6015 .flags = GENL_ADMIN_PERM,
6016 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6017 NL80211_FLAG_NEED_RTNL,
6019 #ifdef CONFIG_NL80211_TESTMODE
6021 .cmd = NL80211_CMD_TESTMODE,
6022 .doit = nl80211_testmode_do,
6023 .dumpit = nl80211_testmode_dump,
6024 .policy = nl80211_policy,
6025 .flags = GENL_ADMIN_PERM,
6026 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6027 NL80211_FLAG_NEED_RTNL,
6031 .cmd = NL80211_CMD_CONNECT,
6032 .doit = nl80211_connect,
6033 .policy = nl80211_policy,
6034 .flags = GENL_ADMIN_PERM,
6035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6036 NL80211_FLAG_NEED_RTNL,
6039 .cmd = NL80211_CMD_DISCONNECT,
6040 .doit = nl80211_disconnect,
6041 .policy = nl80211_policy,
6042 .flags = GENL_ADMIN_PERM,
6043 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6044 NL80211_FLAG_NEED_RTNL,
6047 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6048 .doit = nl80211_wiphy_netns,
6049 .policy = nl80211_policy,
6050 .flags = GENL_ADMIN_PERM,
6051 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6052 NL80211_FLAG_NEED_RTNL,
6055 .cmd = NL80211_CMD_GET_SURVEY,
6056 .policy = nl80211_policy,
6057 .dumpit = nl80211_dump_survey,
6060 .cmd = NL80211_CMD_SET_PMKSA,
6061 .doit = nl80211_setdel_pmksa,
6062 .policy = nl80211_policy,
6063 .flags = GENL_ADMIN_PERM,
6064 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6065 NL80211_FLAG_NEED_RTNL,
6068 .cmd = NL80211_CMD_DEL_PMKSA,
6069 .doit = nl80211_setdel_pmksa,
6070 .policy = nl80211_policy,
6071 .flags = GENL_ADMIN_PERM,
6072 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6073 NL80211_FLAG_NEED_RTNL,
6076 .cmd = NL80211_CMD_FLUSH_PMKSA,
6077 .doit = nl80211_flush_pmksa,
6078 .policy = nl80211_policy,
6079 .flags = GENL_ADMIN_PERM,
6080 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6081 NL80211_FLAG_NEED_RTNL,
6084 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6085 .doit = nl80211_remain_on_channel,
6086 .policy = nl80211_policy,
6087 .flags = GENL_ADMIN_PERM,
6088 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6089 NL80211_FLAG_NEED_RTNL,
6092 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6093 .doit = nl80211_cancel_remain_on_channel,
6094 .policy = nl80211_policy,
6095 .flags = GENL_ADMIN_PERM,
6096 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6097 NL80211_FLAG_NEED_RTNL,
6100 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6101 .doit = nl80211_set_tx_bitrate_mask,
6102 .policy = nl80211_policy,
6103 .flags = GENL_ADMIN_PERM,
6104 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6105 NL80211_FLAG_NEED_RTNL,
6108 .cmd = NL80211_CMD_REGISTER_FRAME,
6109 .doit = nl80211_register_mgmt,
6110 .policy = nl80211_policy,
6111 .flags = GENL_ADMIN_PERM,
6112 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6113 NL80211_FLAG_NEED_RTNL,
6116 .cmd = NL80211_CMD_FRAME,
6117 .doit = nl80211_tx_mgmt,
6118 .policy = nl80211_policy,
6119 .flags = GENL_ADMIN_PERM,
6120 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6121 NL80211_FLAG_NEED_RTNL,
6124 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6125 .doit = nl80211_tx_mgmt_cancel_wait,
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_SET_POWER_SAVE,
6133 .doit = nl80211_set_power_save,
6134 .policy = nl80211_policy,
6135 .flags = GENL_ADMIN_PERM,
6136 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6137 NL80211_FLAG_NEED_RTNL,
6140 .cmd = NL80211_CMD_GET_POWER_SAVE,
6141 .doit = nl80211_get_power_save,
6142 .policy = nl80211_policy,
6143 /* can be retrieved by unprivileged users */
6144 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6145 NL80211_FLAG_NEED_RTNL,
6148 .cmd = NL80211_CMD_SET_CQM,
6149 .doit = nl80211_set_cqm,
6150 .policy = nl80211_policy,
6151 .flags = GENL_ADMIN_PERM,
6152 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6153 NL80211_FLAG_NEED_RTNL,
6156 .cmd = NL80211_CMD_SET_CHANNEL,
6157 .doit = nl80211_set_channel,
6158 .policy = nl80211_policy,
6159 .flags = GENL_ADMIN_PERM,
6160 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6161 NL80211_FLAG_NEED_RTNL,
6164 .cmd = NL80211_CMD_SET_WDS_PEER,
6165 .doit = nl80211_set_wds_peer,
6166 .policy = nl80211_policy,
6167 .flags = GENL_ADMIN_PERM,
6168 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6169 NL80211_FLAG_NEED_RTNL,
6172 .cmd = NL80211_CMD_JOIN_MESH,
6173 .doit = nl80211_join_mesh,
6174 .policy = nl80211_policy,
6175 .flags = GENL_ADMIN_PERM,
6176 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6177 NL80211_FLAG_NEED_RTNL,
6180 .cmd = NL80211_CMD_LEAVE_MESH,
6181 .doit = nl80211_leave_mesh,
6182 .policy = nl80211_policy,
6183 .flags = GENL_ADMIN_PERM,
6184 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6185 NL80211_FLAG_NEED_RTNL,
6188 .cmd = NL80211_CMD_GET_WOWLAN,
6189 .doit = nl80211_get_wowlan,
6190 .policy = nl80211_policy,
6191 /* can be retrieved by unprivileged users */
6192 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6193 NL80211_FLAG_NEED_RTNL,
6196 .cmd = NL80211_CMD_SET_WOWLAN,
6197 .doit = nl80211_set_wowlan,
6198 .policy = nl80211_policy,
6199 .flags = GENL_ADMIN_PERM,
6200 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6201 NL80211_FLAG_NEED_RTNL,
6204 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6205 .doit = nl80211_set_rekey_data,
6206 .policy = nl80211_policy,
6207 .flags = GENL_ADMIN_PERM,
6208 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6209 NL80211_FLAG_NEED_RTNL,
6213 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6217 /* multicast groups */
6218 static struct genl_multicast_group nl80211_config_mcgrp = {
6221 static struct genl_multicast_group nl80211_scan_mcgrp = {
6224 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6225 .name = "regulatory",
6228 /* notification functions */
6230 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6232 struct sk_buff *msg;
6234 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6238 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6243 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6244 nl80211_config_mcgrp.id, GFP_KERNEL);
6247 static int nl80211_add_scan_req(struct sk_buff *msg,
6248 struct cfg80211_registered_device *rdev)
6250 struct cfg80211_scan_request *req = rdev->scan_req;
6251 struct nlattr *nest;
6254 ASSERT_RDEV_LOCK(rdev);
6259 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6261 goto nla_put_failure;
6262 for (i = 0; i < req->n_ssids; i++)
6263 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6264 nla_nest_end(msg, nest);
6266 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6268 goto nla_put_failure;
6269 for (i = 0; i < req->n_channels; i++)
6270 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6271 nla_nest_end(msg, nest);
6274 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6281 static int nl80211_send_scan_msg(struct sk_buff *msg,
6282 struct cfg80211_registered_device *rdev,
6283 struct net_device *netdev,
6284 u32 pid, u32 seq, int flags,
6289 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6293 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6294 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6296 /* ignore errors and send incomplete event anyway */
6297 nl80211_add_scan_req(msg, rdev);
6299 return genlmsg_end(msg, hdr);
6302 genlmsg_cancel(msg, hdr);
6307 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6308 struct cfg80211_registered_device *rdev,
6309 struct net_device *netdev,
6310 u32 pid, u32 seq, int flags, u32 cmd)
6314 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6318 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6319 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6321 return genlmsg_end(msg, hdr);
6324 genlmsg_cancel(msg, hdr);
6328 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6329 struct net_device *netdev)
6331 struct sk_buff *msg;
6333 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6337 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6338 NL80211_CMD_TRIGGER_SCAN) < 0) {
6343 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6344 nl80211_scan_mcgrp.id, GFP_KERNEL);
6347 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6348 struct net_device *netdev)
6350 struct sk_buff *msg;
6352 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6356 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6357 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
6362 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6363 nl80211_scan_mcgrp.id, GFP_KERNEL);
6366 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6367 struct net_device *netdev)
6369 struct sk_buff *msg;
6371 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6375 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6376 NL80211_CMD_SCAN_ABORTED) < 0) {
6381 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6382 nl80211_scan_mcgrp.id, GFP_KERNEL);
6385 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6386 struct net_device *netdev)
6388 struct sk_buff *msg;
6390 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6394 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6395 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6400 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6401 nl80211_scan_mcgrp.id, GFP_KERNEL);
6404 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6405 struct net_device *netdev, u32 cmd)
6407 struct sk_buff *msg;
6409 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6413 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6418 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6419 nl80211_scan_mcgrp.id, GFP_KERNEL);
6423 * This can happen on global regulatory changes or device specific settings
6424 * based on custom world regulatory domains.
6426 void nl80211_send_reg_change_event(struct regulatory_request *request)
6428 struct sk_buff *msg;
6431 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6435 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6441 /* Userspace can always count this one always being set */
6442 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6444 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6445 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6446 NL80211_REGDOM_TYPE_WORLD);
6447 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6448 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6449 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6450 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6452 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6453 NL80211_REGDOM_TYPE_INTERSECTION);
6455 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6456 NL80211_REGDOM_TYPE_COUNTRY);
6457 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6460 if (wiphy_idx_valid(request->wiphy_idx))
6461 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6463 if (genlmsg_end(msg, hdr) < 0) {
6469 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6476 genlmsg_cancel(msg, hdr);
6480 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6481 struct net_device *netdev,
6482 const u8 *buf, size_t len,
6483 enum nl80211_commands cmd, gfp_t gfp)
6485 struct sk_buff *msg;
6488 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6492 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6498 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6499 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6500 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6502 if (genlmsg_end(msg, hdr) < 0) {
6507 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6508 nl80211_mlme_mcgrp.id, gfp);
6512 genlmsg_cancel(msg, hdr);
6516 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
6517 struct net_device *netdev, const u8 *buf,
6518 size_t len, gfp_t gfp)
6520 nl80211_send_mlme_event(rdev, netdev, buf, len,
6521 NL80211_CMD_AUTHENTICATE, gfp);
6524 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6525 struct net_device *netdev, const u8 *buf,
6526 size_t len, gfp_t gfp)
6528 nl80211_send_mlme_event(rdev, netdev, buf, len,
6529 NL80211_CMD_ASSOCIATE, gfp);
6532 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
6533 struct net_device *netdev, const u8 *buf,
6534 size_t len, gfp_t gfp)
6536 nl80211_send_mlme_event(rdev, netdev, buf, len,
6537 NL80211_CMD_DEAUTHENTICATE, gfp);
6540 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6541 struct net_device *netdev, const u8 *buf,
6542 size_t len, gfp_t gfp)
6544 nl80211_send_mlme_event(rdev, netdev, buf, len,
6545 NL80211_CMD_DISASSOCIATE, gfp);
6548 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6549 struct net_device *netdev, const u8 *buf,
6550 size_t len, gfp_t gfp)
6552 nl80211_send_mlme_event(rdev, netdev, buf, len,
6553 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6556 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6557 struct net_device *netdev, const u8 *buf,
6558 size_t len, gfp_t gfp)
6560 nl80211_send_mlme_event(rdev, netdev, buf, len,
6561 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6564 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6565 struct net_device *netdev, int cmd,
6566 const u8 *addr, gfp_t gfp)
6568 struct sk_buff *msg;
6571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6575 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6581 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6582 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6583 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6584 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6586 if (genlmsg_end(msg, hdr) < 0) {
6591 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6592 nl80211_mlme_mcgrp.id, gfp);
6596 genlmsg_cancel(msg, hdr);
6600 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
6601 struct net_device *netdev, const u8 *addr,
6604 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
6608 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
6609 struct net_device *netdev, const u8 *addr,
6612 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6616 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6617 struct net_device *netdev, const u8 *bssid,
6618 const u8 *req_ie, size_t req_ie_len,
6619 const u8 *resp_ie, size_t resp_ie_len,
6620 u16 status, gfp_t gfp)
6622 struct sk_buff *msg;
6625 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6629 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6635 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6636 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6638 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6639 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6641 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6643 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6645 if (genlmsg_end(msg, hdr) < 0) {
6650 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6651 nl80211_mlme_mcgrp.id, gfp);
6655 genlmsg_cancel(msg, hdr);
6660 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6661 struct net_device *netdev, const u8 *bssid,
6662 const u8 *req_ie, size_t req_ie_len,
6663 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6665 struct sk_buff *msg;
6668 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6672 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6678 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6679 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6680 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6682 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6684 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6686 if (genlmsg_end(msg, hdr) < 0) {
6691 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6692 nl80211_mlme_mcgrp.id, gfp);
6696 genlmsg_cancel(msg, hdr);
6701 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6702 struct net_device *netdev, u16 reason,
6703 const u8 *ie, size_t ie_len, bool from_ap)
6705 struct sk_buff *msg;
6708 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6712 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6718 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6719 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6720 if (from_ap && reason)
6721 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6723 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6725 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6727 if (genlmsg_end(msg, hdr) < 0) {
6732 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6733 nl80211_mlme_mcgrp.id, GFP_KERNEL);
6737 genlmsg_cancel(msg, hdr);
6742 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6743 struct net_device *netdev, const u8 *bssid,
6746 struct sk_buff *msg;
6749 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6753 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6759 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6760 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6761 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6763 if (genlmsg_end(msg, hdr) < 0) {
6768 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6769 nl80211_mlme_mcgrp.id, gfp);
6773 genlmsg_cancel(msg, hdr);
6777 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6778 struct net_device *netdev,
6779 const u8 *macaddr, const u8* ie, u8 ie_len,
6782 struct sk_buff *msg;
6785 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6789 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6795 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6796 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6797 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6799 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6801 if (genlmsg_end(msg, hdr) < 0) {
6806 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6807 nl80211_mlme_mcgrp.id, gfp);
6811 genlmsg_cancel(msg, hdr);
6815 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6816 struct net_device *netdev, const u8 *addr,
6817 enum nl80211_key_type key_type, int key_id,
6818 const u8 *tsc, gfp_t gfp)
6820 struct sk_buff *msg;
6823 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6827 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
6833 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6834 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6836 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6837 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
6839 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
6841 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
6843 if (genlmsg_end(msg, hdr) < 0) {
6848 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6849 nl80211_mlme_mcgrp.id, gfp);
6853 genlmsg_cancel(msg, hdr);
6857 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
6858 struct ieee80211_channel *channel_before,
6859 struct ieee80211_channel *channel_after)
6861 struct sk_buff *msg;
6863 struct nlattr *nl_freq;
6865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6869 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
6876 * Since we are applying the beacon hint to a wiphy we know its
6877 * wiphy_idx is valid
6879 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
6882 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
6884 goto nla_put_failure;
6885 if (nl80211_msg_put_channel(msg, channel_before))
6886 goto nla_put_failure;
6887 nla_nest_end(msg, nl_freq);
6890 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
6892 goto nla_put_failure;
6893 if (nl80211_msg_put_channel(msg, channel_after))
6894 goto nla_put_failure;
6895 nla_nest_end(msg, nl_freq);
6897 if (genlmsg_end(msg, hdr) < 0) {
6903 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6910 genlmsg_cancel(msg, hdr);
6914 static void nl80211_send_remain_on_chan_event(
6915 int cmd, struct cfg80211_registered_device *rdev,
6916 struct net_device *netdev, u64 cookie,
6917 struct ieee80211_channel *chan,
6918 enum nl80211_channel_type channel_type,
6919 unsigned int duration, gfp_t gfp)
6921 struct sk_buff *msg;
6924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6928 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6934 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6935 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6936 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
6937 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
6938 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6940 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
6941 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6943 if (genlmsg_end(msg, hdr) < 0) {
6948 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6949 nl80211_mlme_mcgrp.id, gfp);
6953 genlmsg_cancel(msg, hdr);
6957 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
6958 struct net_device *netdev, u64 cookie,
6959 struct ieee80211_channel *chan,
6960 enum nl80211_channel_type channel_type,
6961 unsigned int duration, gfp_t gfp)
6963 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
6964 rdev, netdev, cookie, chan,
6965 channel_type, duration, gfp);
6968 void nl80211_send_remain_on_channel_cancel(
6969 struct cfg80211_registered_device *rdev, struct net_device *netdev,
6970 u64 cookie, struct ieee80211_channel *chan,
6971 enum nl80211_channel_type channel_type, gfp_t gfp)
6973 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6974 rdev, netdev, cookie, chan,
6975 channel_type, 0, gfp);
6978 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
6979 struct net_device *dev, const u8 *mac_addr,
6980 struct station_info *sinfo, gfp_t gfp)
6982 struct sk_buff *msg;
6984 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6988 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
6993 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6994 nl80211_mlme_mcgrp.id, gfp);
6997 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
6998 struct net_device *dev, const u8 *mac_addr,
7001 struct sk_buff *msg;
7004 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7008 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7014 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7015 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7017 if (genlmsg_end(msg, hdr) < 0) {
7022 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7023 nl80211_mlme_mcgrp.id, gfp);
7027 genlmsg_cancel(msg, hdr);
7031 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7032 struct net_device *netdev, u32 nlpid,
7033 int freq, const u8 *buf, size_t len, gfp_t gfp)
7035 struct sk_buff *msg;
7039 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7043 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7049 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7051 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7052 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7054 err = genlmsg_end(msg, hdr);
7060 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7066 genlmsg_cancel(msg, hdr);
7071 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7072 struct net_device *netdev, u64 cookie,
7073 const u8 *buf, size_t len, bool ack,
7076 struct sk_buff *msg;
7079 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7083 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
7089 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7090 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7091 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7092 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7094 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7096 if (genlmsg_end(msg, hdr) < 0) {
7101 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7105 genlmsg_cancel(msg, hdr);
7110 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7111 struct net_device *netdev,
7112 enum nl80211_cqm_rssi_threshold_event rssi_event,
7115 struct sk_buff *msg;
7116 struct nlattr *pinfoattr;
7119 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7123 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7129 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7130 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7132 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7134 goto nla_put_failure;
7136 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7139 nla_nest_end(msg, pinfoattr);
7141 if (genlmsg_end(msg, hdr) < 0) {
7146 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7147 nl80211_mlme_mcgrp.id, gfp);
7151 genlmsg_cancel(msg, hdr);
7155 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7156 struct net_device *netdev, const u8 *bssid,
7157 const u8 *replay_ctr, gfp_t gfp)
7159 struct sk_buff *msg;
7160 struct nlattr *rekey_attr;
7163 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7167 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7173 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7174 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7175 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7177 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7179 goto nla_put_failure;
7181 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7182 NL80211_REPLAY_CTR_LEN, replay_ctr);
7184 nla_nest_end(msg, rekey_attr);
7186 if (genlmsg_end(msg, hdr) < 0) {
7191 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7192 nl80211_mlme_mcgrp.id, gfp);
7196 genlmsg_cancel(msg, hdr);
7201 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7202 struct net_device *netdev, const u8 *peer,
7203 u32 num_packets, gfp_t gfp)
7205 struct sk_buff *msg;
7206 struct nlattr *pinfoattr;
7209 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7213 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7219 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7220 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7221 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7223 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7225 goto nla_put_failure;
7227 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7229 nla_nest_end(msg, pinfoattr);
7231 if (genlmsg_end(msg, hdr) < 0) {
7236 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7237 nl80211_mlme_mcgrp.id, gfp);
7241 genlmsg_cancel(msg, hdr);
7245 static int nl80211_netlink_notify(struct notifier_block * nb,
7246 unsigned long state,
7249 struct netlink_notify *notify = _notify;
7250 struct cfg80211_registered_device *rdev;
7251 struct wireless_dev *wdev;
7253 if (state != NETLINK_URELEASE)
7258 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7259 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
7260 cfg80211_mlme_unregister_socket(wdev, notify->pid);
7267 static struct notifier_block nl80211_netlink_notifier = {
7268 .notifier_call = nl80211_netlink_notify,
7271 /* initialisation/exit functions */
7273 int nl80211_init(void)
7277 err = genl_register_family_with_ops(&nl80211_fam,
7278 nl80211_ops, ARRAY_SIZE(nl80211_ops));
7282 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7286 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7290 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7294 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7298 #ifdef CONFIG_NL80211_TESTMODE
7299 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7304 err = netlink_register_notifier(&nl80211_netlink_notifier);
7310 genl_unregister_family(&nl80211_fam);
7314 void nl80211_exit(void)
7316 netlink_unregister_notifier(&nl80211_netlink_notifier);
7317 genl_unregister_family(&nl80211_fam);