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 int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
27 struct genl_info *info);
28 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
29 struct genl_info *info);
31 /* the netlink family */
32 static struct genl_family nl80211_fam = {
33 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
34 .name = "nl80211", /* have users key off the name instead */
35 .hdrsize = 0, /* no private header */
36 .version = 1, /* no particular meaning now */
37 .maxattr = NL80211_ATTR_MAX,
39 .pre_doit = nl80211_pre_doit,
40 .post_doit = nl80211_post_doit,
43 /* internal helper: get rdev and dev */
44 static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
45 struct cfg80211_registered_device **rdev,
46 struct net_device **dev)
48 struct nlattr **attrs = info->attrs;
51 if (!attrs[NL80211_ATTR_IFINDEX])
54 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
55 *dev = dev_get_by_index(genl_info_net(info), ifindex);
59 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
62 return PTR_ERR(*rdev);
68 /* policy for the attributes */
69 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
70 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
73 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
74 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
75 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
76 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
77 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
78 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
79 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
80 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
82 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
83 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
84 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
86 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
87 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
89 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
90 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
91 .len = WLAN_MAX_KEY_LEN },
92 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
93 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
94 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
95 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
96 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
98 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
99 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
100 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
101 .len = IEEE80211_MAX_DATA_LEN },
102 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_DATA_LEN },
104 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
105 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
107 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
109 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
110 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
111 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
112 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
113 .len = IEEE80211_MAX_MESH_ID_LEN },
114 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
116 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
117 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
119 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
120 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
121 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
122 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
123 .len = NL80211_MAX_SUPP_RATES },
124 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
126 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
127 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
129 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
130 .len = NL80211_HT_CAPABILITY_LEN },
132 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
133 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
134 .len = IEEE80211_MAX_DATA_LEN },
135 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
136 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
138 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
139 .len = IEEE80211_MAX_SSID_LEN },
140 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
141 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
142 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
143 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
144 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
145 [NL80211_ATTR_STA_FLAGS2] = {
146 .len = sizeof(struct nl80211_sta_flag_update),
148 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
149 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
150 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
151 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
152 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
153 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
154 [NL80211_ATTR_PID] = { .type = NLA_U32 },
155 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
156 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
157 .len = WLAN_PMKID_LEN },
158 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
159 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
160 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
161 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
162 .len = IEEE80211_MAX_DATA_LEN },
163 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
164 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
165 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
166 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
167 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
168 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
169 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
170 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
171 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
172 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
173 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
174 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
175 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
176 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
177 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
178 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
179 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
182 /* policy for the key attributes */
183 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
184 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
185 [NL80211_KEY_IDX] = { .type = NLA_U8 },
186 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
187 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
188 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
189 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
190 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
191 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
194 /* policy for the key default flags */
195 static const struct nla_policy
196 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
197 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
198 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
201 /* policy for WoWLAN attributes */
202 static const struct nla_policy
203 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
204 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
205 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
206 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
207 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
210 /* policy for GTK rekey offload attributes */
211 static const struct nla_policy
212 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
213 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
214 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
215 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
218 /* ifidx get helper */
219 static int nl80211_get_ifidx(struct netlink_callback *cb)
223 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
224 nl80211_fam.attrbuf, nl80211_fam.maxattr,
229 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
232 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
238 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
239 struct netlink_callback *cb,
240 struct cfg80211_registered_device **rdev,
241 struct net_device **dev)
243 int ifidx = cb->args[0];
247 ifidx = nl80211_get_ifidx(cb);
255 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
261 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
263 err = PTR_ERR(*rdev);
273 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
275 cfg80211_unlock_rdev(rdev);
280 static bool is_valid_ie_attr(const struct nlattr *attr)
288 pos = nla_data(attr);
309 /* message building helper */
310 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
313 /* since there is no private header just add the generic one */
314 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
317 static int nl80211_msg_put_channel(struct sk_buff *msg,
318 struct ieee80211_channel *chan)
320 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
323 if (chan->flags & IEEE80211_CHAN_DISABLED)
324 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
325 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
326 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
327 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
328 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
329 if (chan->flags & IEEE80211_CHAN_RADAR)
330 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
332 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
333 DBM_TO_MBM(chan->max_power));
341 /* netlink command implementations */
348 bool def_uni, def_multi;
351 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
353 struct nlattr *tb[NL80211_KEY_MAX + 1];
354 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
359 k->def = !!tb[NL80211_KEY_DEFAULT];
360 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
369 if (tb[NL80211_KEY_IDX])
370 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
372 if (tb[NL80211_KEY_DATA]) {
373 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
374 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
377 if (tb[NL80211_KEY_SEQ]) {
378 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
379 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
382 if (tb[NL80211_KEY_CIPHER])
383 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
385 if (tb[NL80211_KEY_TYPE]) {
386 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
387 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
391 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
392 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
393 int err = nla_parse_nested(kdt,
394 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
395 tb[NL80211_KEY_DEFAULT_TYPES],
396 nl80211_key_default_policy);
400 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
401 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
407 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
409 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
410 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
411 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
414 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
415 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
416 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
419 if (info->attrs[NL80211_ATTR_KEY_IDX])
420 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
422 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
423 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
425 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
426 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
435 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
436 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
437 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
441 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
442 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
443 int err = nla_parse_nested(
444 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
445 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
446 nl80211_key_default_policy);
450 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
451 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
457 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
461 memset(k, 0, sizeof(*k));
465 if (info->attrs[NL80211_ATTR_KEY])
466 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
468 err = nl80211_parse_key_old(info, k);
473 if (k->def && k->defmgmt)
477 if (k->def_uni || !k->def_multi)
483 if (k->idx < 4 || k->idx > 5)
486 if (k->idx < 0 || k->idx > 3)
489 if (k->idx < 0 || k->idx > 5)
497 static struct cfg80211_cached_keys *
498 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
501 struct key_parse parse;
503 struct cfg80211_cached_keys *result;
504 int rem, err, def = 0;
506 result = kzalloc(sizeof(*result), GFP_KERNEL);
508 return ERR_PTR(-ENOMEM);
511 result->defmgmt = -1;
513 nla_for_each_nested(key, keys, rem) {
514 memset(&parse, 0, sizeof(parse));
517 err = nl80211_parse_key_new(key, &parse);
523 if (parse.idx < 0 || parse.idx > 4)
529 result->def = parse.idx;
530 if (!parse.def_uni || !parse.def_multi)
532 } else if (parse.defmgmt)
534 err = cfg80211_validate_key_settings(rdev, &parse.p,
535 parse.idx, false, NULL);
538 result->params[parse.idx].cipher = parse.p.cipher;
539 result->params[parse.idx].key_len = parse.p.key_len;
540 result->params[parse.idx].key = result->data[parse.idx];
541 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
550 static int nl80211_key_allowed(struct wireless_dev *wdev)
552 ASSERT_WDEV_LOCK(wdev);
554 switch (wdev->iftype) {
555 case NL80211_IFTYPE_AP:
556 case NL80211_IFTYPE_AP_VLAN:
557 case NL80211_IFTYPE_P2P_GO:
558 case NL80211_IFTYPE_MESH_POINT:
560 case NL80211_IFTYPE_ADHOC:
561 if (!wdev->current_bss)
564 case NL80211_IFTYPE_STATION:
565 case NL80211_IFTYPE_P2P_CLIENT:
566 if (wdev->sme_state != CFG80211_SME_CONNECTED)
576 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
578 struct nlattr *nl_modes = nla_nest_start(msg, attr);
582 goto nla_put_failure;
587 NLA_PUT_FLAG(msg, i);
592 nla_nest_end(msg, nl_modes);
599 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
602 struct nlattr *nl_combis;
605 nl_combis = nla_nest_start(msg,
606 NL80211_ATTR_INTERFACE_COMBINATIONS);
608 goto nla_put_failure;
610 for (i = 0; i < wiphy->n_iface_combinations; i++) {
611 const struct ieee80211_iface_combination *c;
612 struct nlattr *nl_combi, *nl_limits;
614 c = &wiphy->iface_combinations[i];
616 nl_combi = nla_nest_start(msg, i + 1);
618 goto nla_put_failure;
620 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
622 goto nla_put_failure;
624 for (j = 0; j < c->n_limits; j++) {
625 struct nlattr *nl_limit;
627 nl_limit = nla_nest_start(msg, j + 1);
629 goto nla_put_failure;
630 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
632 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
634 goto nla_put_failure;
635 nla_nest_end(msg, nl_limit);
638 nla_nest_end(msg, nl_limits);
640 if (c->beacon_int_infra_match)
642 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
643 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
644 c->num_different_channels);
645 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
648 nla_nest_end(msg, nl_combi);
651 nla_nest_end(msg, nl_combis);
658 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
659 struct cfg80211_registered_device *dev)
662 struct nlattr *nl_bands, *nl_band;
663 struct nlattr *nl_freqs, *nl_freq;
664 struct nlattr *nl_rates, *nl_rate;
665 struct nlattr *nl_cmds;
666 enum ieee80211_band band;
667 struct ieee80211_channel *chan;
668 struct ieee80211_rate *rate;
670 const struct ieee80211_txrx_stypes *mgmt_stypes =
671 dev->wiphy.mgmt_stypes;
673 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
677 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
678 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
680 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
681 cfg80211_rdev_list_generation);
683 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
684 dev->wiphy.retry_short);
685 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
686 dev->wiphy.retry_long);
687 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
688 dev->wiphy.frag_threshold);
689 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
690 dev->wiphy.rts_threshold);
691 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
692 dev->wiphy.coverage_class);
693 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
694 dev->wiphy.max_scan_ssids);
695 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
696 dev->wiphy.max_scan_ie_len);
698 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
699 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
700 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
701 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
703 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
704 sizeof(u32) * dev->wiphy.n_cipher_suites,
705 dev->wiphy.cipher_suites);
707 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
708 dev->wiphy.max_num_pmkids);
710 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
711 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
713 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
714 dev->wiphy.available_antennas_tx);
715 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
716 dev->wiphy.available_antennas_rx);
718 if ((dev->wiphy.available_antennas_tx ||
719 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
720 u32 tx_ant = 0, rx_ant = 0;
722 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
724 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
725 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
729 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
730 dev->wiphy.interface_modes))
731 goto nla_put_failure;
733 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
735 goto nla_put_failure;
737 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
738 if (!dev->wiphy.bands[band])
741 nl_band = nla_nest_start(msg, band);
743 goto nla_put_failure;
746 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
747 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
748 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
749 &dev->wiphy.bands[band]->ht_cap.mcs);
750 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
751 dev->wiphy.bands[band]->ht_cap.cap);
752 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
753 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
754 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
755 dev->wiphy.bands[band]->ht_cap.ampdu_density);
758 /* add frequencies */
759 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
761 goto nla_put_failure;
763 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
764 nl_freq = nla_nest_start(msg, i);
766 goto nla_put_failure;
768 chan = &dev->wiphy.bands[band]->channels[i];
770 if (nl80211_msg_put_channel(msg, chan))
771 goto nla_put_failure;
773 nla_nest_end(msg, nl_freq);
776 nla_nest_end(msg, nl_freqs);
779 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
781 goto nla_put_failure;
783 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
784 nl_rate = nla_nest_start(msg, i);
786 goto nla_put_failure;
788 rate = &dev->wiphy.bands[band]->bitrates[i];
789 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
791 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
793 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
795 nla_nest_end(msg, nl_rate);
798 nla_nest_end(msg, nl_rates);
800 nla_nest_end(msg, nl_band);
802 nla_nest_end(msg, nl_bands);
804 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
806 goto nla_put_failure;
811 if (dev->ops->op) { \
813 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
817 CMD(add_virtual_intf, NEW_INTERFACE);
818 CMD(change_virtual_intf, SET_INTERFACE);
819 CMD(add_key, NEW_KEY);
820 CMD(add_beacon, NEW_BEACON);
821 CMD(add_station, NEW_STATION);
822 CMD(add_mpath, NEW_MPATH);
823 CMD(update_mesh_config, SET_MESH_CONFIG);
824 CMD(change_bss, SET_BSS);
825 CMD(auth, AUTHENTICATE);
826 CMD(assoc, ASSOCIATE);
827 CMD(deauth, DEAUTHENTICATE);
828 CMD(disassoc, DISASSOCIATE);
829 CMD(join_ibss, JOIN_IBSS);
830 CMD(join_mesh, JOIN_MESH);
831 CMD(set_pmksa, SET_PMKSA);
832 CMD(del_pmksa, DEL_PMKSA);
833 CMD(flush_pmksa, FLUSH_PMKSA);
834 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
835 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
837 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
838 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
840 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
842 CMD(set_channel, SET_CHANNEL);
843 CMD(set_wds_peer, SET_WDS_PEER);
844 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
845 CMD(sched_scan_start, START_SCHED_SCAN);
849 if (dev->ops->connect || dev->ops->auth) {
851 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
854 if (dev->ops->disconnect || dev->ops->deauth) {
856 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
859 nla_nest_end(msg, nl_cmds);
861 if (dev->ops->remain_on_channel)
862 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
863 dev->wiphy.max_remain_on_channel_duration);
865 /* for now at least assume all drivers have it */
866 if (dev->ops->mgmt_tx)
867 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
871 struct nlattr *nl_ftypes, *nl_ifs;
872 enum nl80211_iftype ift;
874 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
876 goto nla_put_failure;
878 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
879 nl_ftypes = nla_nest_start(msg, ift);
881 goto nla_put_failure;
883 stypes = mgmt_stypes[ift].tx;
886 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
887 (i << 4) | IEEE80211_FTYPE_MGMT);
891 nla_nest_end(msg, nl_ftypes);
894 nla_nest_end(msg, nl_ifs);
896 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
898 goto nla_put_failure;
900 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
901 nl_ftypes = nla_nest_start(msg, ift);
903 goto nla_put_failure;
905 stypes = mgmt_stypes[ift].rx;
908 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
909 (i << 4) | IEEE80211_FTYPE_MGMT);
913 nla_nest_end(msg, nl_ftypes);
915 nla_nest_end(msg, nl_ifs);
918 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
919 struct nlattr *nl_wowlan;
921 nl_wowlan = nla_nest_start(msg,
922 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
924 goto nla_put_failure;
926 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
927 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
928 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
929 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
930 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
931 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
932 if (dev->wiphy.wowlan.n_patterns) {
933 struct nl80211_wowlan_pattern_support pat = {
934 .max_patterns = dev->wiphy.wowlan.n_patterns,
936 dev->wiphy.wowlan.pattern_min_len,
938 dev->wiphy.wowlan.pattern_max_len,
940 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
944 nla_nest_end(msg, nl_wowlan);
947 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
948 dev->wiphy.software_iftypes))
949 goto nla_put_failure;
951 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
952 goto nla_put_failure;
954 return genlmsg_end(msg, hdr);
957 genlmsg_cancel(msg, hdr);
961 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
964 int start = cb->args[0];
965 struct cfg80211_registered_device *dev;
967 mutex_lock(&cfg80211_mutex);
968 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
969 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
973 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
974 cb->nlh->nlmsg_seq, NLM_F_MULTI,
980 mutex_unlock(&cfg80211_mutex);
987 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
990 struct cfg80211_registered_device *dev = info->user_ptr[0];
992 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
996 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1001 return genlmsg_reply(msg, info);
1004 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1005 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1006 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1007 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1008 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1009 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1012 static int parse_txq_params(struct nlattr *tb[],
1013 struct ieee80211_txq_params *txq_params)
1015 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1016 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1017 !tb[NL80211_TXQ_ATTR_AIFS])
1020 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1021 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1022 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1023 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1024 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1029 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1032 * You can only set the channel explicitly for AP, mesh
1033 * and WDS type interfaces; all others have their channel
1034 * managed via their respective "establish a connection"
1035 * command (connect, join, ...)
1037 * Monitors are special as they are normally slaved to
1038 * whatever else is going on, so they behave as though
1039 * you tried setting the wiphy channel itself.
1042 wdev->iftype == NL80211_IFTYPE_AP ||
1043 wdev->iftype == NL80211_IFTYPE_WDS ||
1044 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1045 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1046 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1049 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1050 struct wireless_dev *wdev,
1051 struct genl_info *info)
1053 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1057 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1060 if (!nl80211_can_set_dev_channel(wdev))
1063 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1064 channel_type = nla_get_u32(info->attrs[
1065 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1066 if (channel_type != NL80211_CHAN_NO_HT &&
1067 channel_type != NL80211_CHAN_HT20 &&
1068 channel_type != NL80211_CHAN_HT40PLUS &&
1069 channel_type != NL80211_CHAN_HT40MINUS)
1073 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1075 mutex_lock(&rdev->devlist_mtx);
1078 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1081 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1083 mutex_unlock(&rdev->devlist_mtx);
1088 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1091 struct net_device *netdev = info->user_ptr[1];
1093 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1096 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1099 struct net_device *dev = info->user_ptr[1];
1100 struct wireless_dev *wdev = dev->ieee80211_ptr;
1103 if (!info->attrs[NL80211_ATTR_MAC])
1106 if (netif_running(dev))
1109 if (!rdev->ops->set_wds_peer)
1112 if (wdev->iftype != NL80211_IFTYPE_WDS)
1115 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1116 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1120 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1122 struct cfg80211_registered_device *rdev;
1123 struct net_device *netdev = NULL;
1124 struct wireless_dev *wdev;
1125 int result = 0, rem_txq_params = 0;
1126 struct nlattr *nl_txq_params;
1128 u8 retry_short = 0, retry_long = 0;
1129 u32 frag_threshold = 0, rts_threshold = 0;
1130 u8 coverage_class = 0;
1133 * Try to find the wiphy and netdev. Normally this
1134 * function shouldn't need the netdev, but this is
1135 * done for backward compatibility -- previously
1136 * setting the channel was done per wiphy, but now
1137 * it is per netdev. Previous userland like hostapd
1138 * also passed a netdev to set_wiphy, so that it is
1139 * possible to let that go to the right netdev!
1141 mutex_lock(&cfg80211_mutex);
1143 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1144 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1146 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1147 if (netdev && netdev->ieee80211_ptr) {
1148 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1149 mutex_lock(&rdev->mtx);
1155 rdev = __cfg80211_rdev_from_info(info);
1157 mutex_unlock(&cfg80211_mutex);
1158 return PTR_ERR(rdev);
1164 mutex_lock(&rdev->mtx);
1165 } else if (netif_running(netdev) &&
1166 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1167 wdev = netdev->ieee80211_ptr;
1172 * end workaround code, by now the rdev is available
1173 * and locked, and wdev may or may not be NULL.
1176 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1177 result = cfg80211_dev_rename(
1178 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1180 mutex_unlock(&cfg80211_mutex);
1185 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1186 struct ieee80211_txq_params txq_params;
1187 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1189 if (!rdev->ops->set_txq_params) {
1190 result = -EOPNOTSUPP;
1194 nla_for_each_nested(nl_txq_params,
1195 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1197 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1198 nla_data(nl_txq_params),
1199 nla_len(nl_txq_params),
1201 result = parse_txq_params(tb, &txq_params);
1205 result = rdev->ops->set_txq_params(&rdev->wiphy,
1212 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1213 result = __nl80211_set_channel(rdev, wdev, info);
1218 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1219 enum nl80211_tx_power_setting type;
1222 if (!rdev->ops->set_tx_power) {
1223 result = -EOPNOTSUPP;
1227 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1228 type = nla_get_u32(info->attrs[idx]);
1230 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1231 (type != NL80211_TX_POWER_AUTOMATIC)) {
1236 if (type != NL80211_TX_POWER_AUTOMATIC) {
1237 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1238 mbm = nla_get_u32(info->attrs[idx]);
1241 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1246 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1247 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1249 if ((!rdev->wiphy.available_antennas_tx &&
1250 !rdev->wiphy.available_antennas_rx) ||
1251 !rdev->ops->set_antenna) {
1252 result = -EOPNOTSUPP;
1256 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1257 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1259 /* reject antenna configurations which don't match the
1260 * available antenna masks, except for the "all" mask */
1261 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1262 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1267 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1268 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1270 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1277 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1278 retry_short = nla_get_u8(
1279 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1280 if (retry_short == 0) {
1284 changed |= WIPHY_PARAM_RETRY_SHORT;
1287 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1288 retry_long = nla_get_u8(
1289 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1290 if (retry_long == 0) {
1294 changed |= WIPHY_PARAM_RETRY_LONG;
1297 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1298 frag_threshold = nla_get_u32(
1299 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1300 if (frag_threshold < 256) {
1304 if (frag_threshold != (u32) -1) {
1306 * Fragments (apart from the last one) are required to
1307 * have even length. Make the fragmentation code
1308 * simpler by stripping LSB should someone try to use
1309 * odd threshold value.
1311 frag_threshold &= ~0x1;
1313 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1316 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1317 rts_threshold = nla_get_u32(
1318 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1319 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1322 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1323 coverage_class = nla_get_u8(
1324 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1325 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1329 u8 old_retry_short, old_retry_long;
1330 u32 old_frag_threshold, old_rts_threshold;
1331 u8 old_coverage_class;
1333 if (!rdev->ops->set_wiphy_params) {
1334 result = -EOPNOTSUPP;
1338 old_retry_short = rdev->wiphy.retry_short;
1339 old_retry_long = rdev->wiphy.retry_long;
1340 old_frag_threshold = rdev->wiphy.frag_threshold;
1341 old_rts_threshold = rdev->wiphy.rts_threshold;
1342 old_coverage_class = rdev->wiphy.coverage_class;
1344 if (changed & WIPHY_PARAM_RETRY_SHORT)
1345 rdev->wiphy.retry_short = retry_short;
1346 if (changed & WIPHY_PARAM_RETRY_LONG)
1347 rdev->wiphy.retry_long = retry_long;
1348 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1349 rdev->wiphy.frag_threshold = frag_threshold;
1350 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1351 rdev->wiphy.rts_threshold = rts_threshold;
1352 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1353 rdev->wiphy.coverage_class = coverage_class;
1355 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1357 rdev->wiphy.retry_short = old_retry_short;
1358 rdev->wiphy.retry_long = old_retry_long;
1359 rdev->wiphy.frag_threshold = old_frag_threshold;
1360 rdev->wiphy.rts_threshold = old_rts_threshold;
1361 rdev->wiphy.coverage_class = old_coverage_class;
1366 mutex_unlock(&rdev->mtx);
1373 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1374 struct cfg80211_registered_device *rdev,
1375 struct net_device *dev)
1379 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1383 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1384 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1385 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1386 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1388 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1389 rdev->devlist_generation ^
1390 (cfg80211_rdev_list_generation << 2));
1392 return genlmsg_end(msg, hdr);
1395 genlmsg_cancel(msg, hdr);
1399 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1403 int wp_start = cb->args[0];
1404 int if_start = cb->args[1];
1405 struct cfg80211_registered_device *rdev;
1406 struct wireless_dev *wdev;
1408 mutex_lock(&cfg80211_mutex);
1409 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1410 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1412 if (wp_idx < wp_start) {
1418 mutex_lock(&rdev->devlist_mtx);
1419 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1420 if (if_idx < if_start) {
1424 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1425 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1426 rdev, wdev->netdev) < 0) {
1427 mutex_unlock(&rdev->devlist_mtx);
1432 mutex_unlock(&rdev->devlist_mtx);
1437 mutex_unlock(&cfg80211_mutex);
1439 cb->args[0] = wp_idx;
1440 cb->args[1] = if_idx;
1445 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1447 struct sk_buff *msg;
1448 struct cfg80211_registered_device *dev = info->user_ptr[0];
1449 struct net_device *netdev = info->user_ptr[1];
1451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1455 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1461 return genlmsg_reply(msg, info);
1464 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1465 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1466 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1467 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1468 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1469 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1472 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1474 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1482 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1483 nla, mntr_flags_policy))
1486 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1488 *mntrflags |= (1<<flag);
1493 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1494 struct net_device *netdev, u8 use_4addr,
1495 enum nl80211_iftype iftype)
1498 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1504 case NL80211_IFTYPE_AP_VLAN:
1505 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1508 case NL80211_IFTYPE_STATION:
1509 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1519 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1522 struct vif_params params;
1524 enum nl80211_iftype otype, ntype;
1525 struct net_device *dev = info->user_ptr[1];
1526 u32 _flags, *flags = NULL;
1527 bool change = false;
1529 memset(¶ms, 0, sizeof(params));
1531 otype = ntype = dev->ieee80211_ptr->iftype;
1533 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1534 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1537 if (ntype > NL80211_IFTYPE_MAX)
1541 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1542 struct wireless_dev *wdev = dev->ieee80211_ptr;
1544 if (ntype != NL80211_IFTYPE_MESH_POINT)
1546 if (netif_running(dev))
1550 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1551 IEEE80211_MAX_MESH_ID_LEN);
1552 wdev->mesh_id_up_len =
1553 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1554 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1555 wdev->mesh_id_up_len);
1559 if (info->attrs[NL80211_ATTR_4ADDR]) {
1560 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1562 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1566 params.use_4addr = -1;
1569 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1570 if (ntype != NL80211_IFTYPE_MONITOR)
1572 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1582 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1586 if (!err && params.use_4addr != -1)
1587 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1592 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1594 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1595 struct vif_params params;
1596 struct net_device *dev;
1598 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1601 memset(¶ms, 0, sizeof(params));
1603 if (!info->attrs[NL80211_ATTR_IFNAME])
1606 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1607 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1608 if (type > NL80211_IFTYPE_MAX)
1612 if (!rdev->ops->add_virtual_intf ||
1613 !(rdev->wiphy.interface_modes & (1 << type)))
1616 if (info->attrs[NL80211_ATTR_4ADDR]) {
1617 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1618 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1623 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1624 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1626 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1627 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1628 type, err ? NULL : &flags, ¶ms);
1630 return PTR_ERR(dev);
1632 if (type == NL80211_IFTYPE_MESH_POINT &&
1633 info->attrs[NL80211_ATTR_MESH_ID]) {
1634 struct wireless_dev *wdev = dev->ieee80211_ptr;
1637 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1638 IEEE80211_MAX_MESH_ID_LEN);
1639 wdev->mesh_id_up_len =
1640 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1641 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1642 wdev->mesh_id_up_len);
1649 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1651 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1652 struct net_device *dev = info->user_ptr[1];
1654 if (!rdev->ops->del_virtual_intf)
1657 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1660 struct get_key_cookie {
1661 struct sk_buff *msg;
1666 static void get_key_callback(void *c, struct key_params *params)
1669 struct get_key_cookie *cookie = c;
1672 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1673 params->key_len, params->key);
1676 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1677 params->seq_len, params->seq);
1680 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1683 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1685 goto nla_put_failure;
1688 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1689 params->key_len, params->key);
1692 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1693 params->seq_len, params->seq);
1696 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1699 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1701 nla_nest_end(cookie->msg, key);
1708 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1710 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1712 struct net_device *dev = info->user_ptr[1];
1714 const u8 *mac_addr = NULL;
1716 struct get_key_cookie cookie = {
1720 struct sk_buff *msg;
1722 if (info->attrs[NL80211_ATTR_KEY_IDX])
1723 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1728 if (info->attrs[NL80211_ATTR_MAC])
1729 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1731 pairwise = !!mac_addr;
1732 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1733 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1734 if (kt >= NUM_NL80211_KEYTYPES)
1736 if (kt != NL80211_KEYTYPE_GROUP &&
1737 kt != NL80211_KEYTYPE_PAIRWISE)
1739 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1742 if (!rdev->ops->get_key)
1745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1749 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1750 NL80211_CMD_NEW_KEY);
1752 return PTR_ERR(hdr);
1755 cookie.idx = key_idx;
1757 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1758 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1760 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1762 if (pairwise && mac_addr &&
1763 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1766 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1767 mac_addr, &cookie, get_key_callback);
1773 goto nla_put_failure;
1775 genlmsg_end(msg, hdr);
1776 return genlmsg_reply(msg, info);
1785 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1788 struct key_parse key;
1790 struct net_device *dev = info->user_ptr[1];
1792 err = nl80211_parse_key(info, &key);
1799 /* only support setting default key */
1800 if (!key.def && !key.defmgmt)
1803 wdev_lock(dev->ieee80211_ptr);
1806 if (!rdev->ops->set_default_key) {
1811 err = nl80211_key_allowed(dev->ieee80211_ptr);
1815 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1816 key.def_uni, key.def_multi);
1821 #ifdef CONFIG_CFG80211_WEXT
1822 dev->ieee80211_ptr->wext.default_key = key.idx;
1825 if (key.def_uni || !key.def_multi) {
1830 if (!rdev->ops->set_default_mgmt_key) {
1835 err = nl80211_key_allowed(dev->ieee80211_ptr);
1839 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1844 #ifdef CONFIG_CFG80211_WEXT
1845 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1850 wdev_unlock(dev->ieee80211_ptr);
1855 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1859 struct net_device *dev = info->user_ptr[1];
1860 struct key_parse key;
1861 const u8 *mac_addr = NULL;
1863 err = nl80211_parse_key(info, &key);
1870 if (info->attrs[NL80211_ATTR_MAC])
1871 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1873 if (key.type == -1) {
1875 key.type = NL80211_KEYTYPE_PAIRWISE;
1877 key.type = NL80211_KEYTYPE_GROUP;
1881 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1882 key.type != NL80211_KEYTYPE_GROUP)
1885 if (!rdev->ops->add_key)
1888 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1889 key.type == NL80211_KEYTYPE_PAIRWISE,
1893 wdev_lock(dev->ieee80211_ptr);
1894 err = nl80211_key_allowed(dev->ieee80211_ptr);
1896 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1897 key.type == NL80211_KEYTYPE_PAIRWISE,
1899 wdev_unlock(dev->ieee80211_ptr);
1904 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1908 struct net_device *dev = info->user_ptr[1];
1909 u8 *mac_addr = NULL;
1910 struct key_parse key;
1912 err = nl80211_parse_key(info, &key);
1916 if (info->attrs[NL80211_ATTR_MAC])
1917 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1919 if (key.type == -1) {
1921 key.type = NL80211_KEYTYPE_PAIRWISE;
1923 key.type = NL80211_KEYTYPE_GROUP;
1927 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1928 key.type != NL80211_KEYTYPE_GROUP)
1931 if (!rdev->ops->del_key)
1934 wdev_lock(dev->ieee80211_ptr);
1935 err = nl80211_key_allowed(dev->ieee80211_ptr);
1937 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1938 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1942 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1943 key.type == NL80211_KEYTYPE_PAIRWISE,
1946 #ifdef CONFIG_CFG80211_WEXT
1948 if (key.idx == dev->ieee80211_ptr->wext.default_key)
1949 dev->ieee80211_ptr->wext.default_key = -1;
1950 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1951 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1954 wdev_unlock(dev->ieee80211_ptr);
1959 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1961 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1962 struct beacon_parameters *info);
1963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1964 struct net_device *dev = info->user_ptr[1];
1965 struct wireless_dev *wdev = dev->ieee80211_ptr;
1966 struct beacon_parameters params;
1967 int haveinfo = 0, err;
1969 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1976 memset(¶ms, 0, sizeof(params));
1978 switch (info->genlhdr->cmd) {
1979 case NL80211_CMD_NEW_BEACON:
1980 /* these are required for NEW_BEACON */
1981 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1982 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1983 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1987 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1988 params.dtim_period =
1989 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1991 err = cfg80211_validate_beacon_int(rdev, params.interval);
1995 call = rdev->ops->add_beacon;
1997 case NL80211_CMD_SET_BEACON:
1998 call = rdev->ops->set_beacon;
2008 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2009 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2011 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2015 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2016 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2018 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2025 err = call(&rdev->wiphy, dev, ¶ms);
2026 if (!err && params.interval)
2027 wdev->beacon_interval = params.interval;
2031 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2034 struct net_device *dev = info->user_ptr[1];
2035 struct wireless_dev *wdev = dev->ieee80211_ptr;
2038 if (!rdev->ops->del_beacon)
2041 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2042 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2045 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2047 wdev->beacon_interval = 0;
2051 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2052 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2053 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2054 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2055 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2056 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2059 static int parse_station_flags(struct genl_info *info,
2060 struct station_parameters *params)
2062 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2067 * Try parsing the new attribute first so userspace
2068 * can specify both for older kernels.
2070 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2072 struct nl80211_sta_flag_update *sta_flags;
2074 sta_flags = nla_data(nla);
2075 params->sta_flags_mask = sta_flags->mask;
2076 params->sta_flags_set = sta_flags->set;
2077 if ((params->sta_flags_mask |
2078 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2083 /* if present, parse the old attribute */
2085 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2089 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2090 nla, sta_flags_policy))
2093 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2094 params->sta_flags_mask &= ~1;
2096 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2098 params->sta_flags_set |= (1<<flag);
2103 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2106 struct nlattr *rate;
2109 rate = nla_nest_start(msg, attr);
2111 goto nla_put_failure;
2113 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2114 bitrate = cfg80211_calculate_bitrate(info);
2116 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2118 if (info->flags & RATE_INFO_FLAGS_MCS)
2119 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2120 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2121 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2122 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2123 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2125 nla_nest_end(msg, rate);
2132 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2133 int flags, struct net_device *dev,
2134 const u8 *mac_addr, struct station_info *sinfo)
2137 struct nlattr *sinfoattr, *bss_param;
2139 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2143 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2144 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2146 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2148 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2150 goto nla_put_failure;
2151 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2152 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2153 sinfo->connected_time);
2154 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2155 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2156 sinfo->inactive_time);
2157 if (sinfo->filled & STATION_INFO_RX_BYTES)
2158 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2160 if (sinfo->filled & STATION_INFO_TX_BYTES)
2161 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2163 if (sinfo->filled & STATION_INFO_LLID)
2164 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2166 if (sinfo->filled & STATION_INFO_PLID)
2167 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2169 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2170 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2171 sinfo->plink_state);
2172 if (sinfo->filled & STATION_INFO_SIGNAL)
2173 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2175 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2176 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2178 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2179 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2180 NL80211_STA_INFO_TX_BITRATE))
2181 goto nla_put_failure;
2183 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2184 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2185 NL80211_STA_INFO_RX_BITRATE))
2186 goto nla_put_failure;
2188 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2189 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2191 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2192 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2194 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2195 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2197 if (sinfo->filled & STATION_INFO_TX_FAILED)
2198 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2200 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2201 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2203 goto nla_put_failure;
2205 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2206 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2207 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2208 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2209 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2211 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2212 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2213 sinfo->bss_param.dtim_period);
2214 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2215 sinfo->bss_param.beacon_interval);
2217 nla_nest_end(msg, bss_param);
2219 nla_nest_end(msg, sinfoattr);
2221 return genlmsg_end(msg, hdr);
2224 genlmsg_cancel(msg, hdr);
2228 static int nl80211_dump_station(struct sk_buff *skb,
2229 struct netlink_callback *cb)
2231 struct station_info sinfo;
2232 struct cfg80211_registered_device *dev;
2233 struct net_device *netdev;
2234 u8 mac_addr[ETH_ALEN];
2235 int sta_idx = cb->args[1];
2238 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2242 if (!dev->ops->dump_station) {
2248 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2255 if (nl80211_send_station(skb,
2256 NETLINK_CB(cb->skb).pid,
2257 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2267 cb->args[1] = sta_idx;
2270 nl80211_finish_netdev_dump(dev);
2275 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2277 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2278 struct net_device *dev = info->user_ptr[1];
2279 struct station_info sinfo;
2280 struct sk_buff *msg;
2281 u8 *mac_addr = NULL;
2284 memset(&sinfo, 0, sizeof(sinfo));
2286 if (!info->attrs[NL80211_ATTR_MAC])
2289 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2291 if (!rdev->ops->get_station)
2294 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2298 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2302 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2303 dev, mac_addr, &sinfo) < 0) {
2308 return genlmsg_reply(msg, info);
2312 * Get vlan interface making sure it is running and on the right wiphy.
2314 static int get_vlan(struct genl_info *info,
2315 struct cfg80211_registered_device *rdev,
2316 struct net_device **vlan)
2318 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2322 *vlan = dev_get_by_index(genl_info_net(info),
2323 nla_get_u32(vlanattr));
2326 if (!(*vlan)->ieee80211_ptr)
2328 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2330 if (!netif_running(*vlan))
2336 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2338 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2340 struct net_device *dev = info->user_ptr[1];
2341 struct station_parameters params;
2342 u8 *mac_addr = NULL;
2344 memset(¶ms, 0, sizeof(params));
2346 params.listen_interval = -1;
2347 params.plink_state = -1;
2349 if (info->attrs[NL80211_ATTR_STA_AID])
2352 if (!info->attrs[NL80211_ATTR_MAC])
2355 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2357 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2358 params.supported_rates =
2359 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2360 params.supported_rates_len =
2361 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2364 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2365 params.listen_interval =
2366 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2368 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2370 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2372 if (parse_station_flags(info, ¶ms))
2375 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2376 params.plink_action =
2377 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2379 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2380 params.plink_state =
2381 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2383 err = get_vlan(info, rdev, ¶ms.vlan);
2387 /* validate settings */
2390 switch (dev->ieee80211_ptr->iftype) {
2391 case NL80211_IFTYPE_AP:
2392 case NL80211_IFTYPE_AP_VLAN:
2393 case NL80211_IFTYPE_P2P_GO:
2394 /* disallow mesh-specific things */
2395 if (params.plink_action)
2398 case NL80211_IFTYPE_P2P_CLIENT:
2399 case NL80211_IFTYPE_STATION:
2400 /* disallow everything but AUTHORIZED flag */
2401 if (params.plink_action)
2405 if (params.supported_rates)
2409 if (params.listen_interval >= 0)
2411 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2414 case NL80211_IFTYPE_MESH_POINT:
2415 /* disallow things mesh doesn't support */
2420 if (params.listen_interval >= 0)
2422 if (params.sta_flags_mask &
2423 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2424 BIT(NL80211_STA_FLAG_MFP) |
2425 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2435 if (!rdev->ops->change_station) {
2440 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2444 dev_put(params.vlan);
2449 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2453 struct net_device *dev = info->user_ptr[1];
2454 struct station_parameters params;
2455 u8 *mac_addr = NULL;
2457 memset(¶ms, 0, sizeof(params));
2459 if (!info->attrs[NL80211_ATTR_MAC])
2462 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2465 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2468 if (!info->attrs[NL80211_ATTR_STA_AID])
2471 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2472 params.supported_rates =
2473 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2474 params.supported_rates_len =
2475 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2476 params.listen_interval =
2477 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2479 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2480 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2483 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2485 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2487 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2488 params.plink_action =
2489 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2491 if (parse_station_flags(info, ¶ms))
2494 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2495 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2496 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2497 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2500 err = get_vlan(info, rdev, ¶ms.vlan);
2504 /* validate settings */
2507 if (!rdev->ops->add_station) {
2512 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2516 dev_put(params.vlan);
2520 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2523 struct net_device *dev = info->user_ptr[1];
2524 u8 *mac_addr = NULL;
2526 if (info->attrs[NL80211_ATTR_MAC])
2527 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2529 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2530 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2531 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2532 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2535 if (!rdev->ops->del_station)
2538 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2541 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2542 int flags, struct net_device *dev,
2543 u8 *dst, u8 *next_hop,
2544 struct mpath_info *pinfo)
2547 struct nlattr *pinfoattr;
2549 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2553 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2554 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2555 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2557 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2559 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2561 goto nla_put_failure;
2562 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2563 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2565 if (pinfo->filled & MPATH_INFO_SN)
2566 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2568 if (pinfo->filled & MPATH_INFO_METRIC)
2569 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2571 if (pinfo->filled & MPATH_INFO_EXPTIME)
2572 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2574 if (pinfo->filled & MPATH_INFO_FLAGS)
2575 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2577 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2578 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2579 pinfo->discovery_timeout);
2580 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2581 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2582 pinfo->discovery_retries);
2584 nla_nest_end(msg, pinfoattr);
2586 return genlmsg_end(msg, hdr);
2589 genlmsg_cancel(msg, hdr);
2593 static int nl80211_dump_mpath(struct sk_buff *skb,
2594 struct netlink_callback *cb)
2596 struct mpath_info pinfo;
2597 struct cfg80211_registered_device *dev;
2598 struct net_device *netdev;
2600 u8 next_hop[ETH_ALEN];
2601 int path_idx = cb->args[1];
2604 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2608 if (!dev->ops->dump_mpath) {
2613 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2619 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2620 dst, next_hop, &pinfo);
2626 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2627 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2628 netdev, dst, next_hop,
2637 cb->args[1] = path_idx;
2640 nl80211_finish_netdev_dump(dev);
2644 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2648 struct net_device *dev = info->user_ptr[1];
2649 struct mpath_info pinfo;
2650 struct sk_buff *msg;
2652 u8 next_hop[ETH_ALEN];
2654 memset(&pinfo, 0, sizeof(pinfo));
2656 if (!info->attrs[NL80211_ATTR_MAC])
2659 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2661 if (!rdev->ops->get_mpath)
2664 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2667 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2675 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2676 dev, dst, next_hop, &pinfo) < 0) {
2681 return genlmsg_reply(msg, info);
2684 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2687 struct net_device *dev = info->user_ptr[1];
2689 u8 *next_hop = NULL;
2691 if (!info->attrs[NL80211_ATTR_MAC])
2694 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2697 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2698 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2700 if (!rdev->ops->change_mpath)
2703 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2706 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2709 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2712 struct net_device *dev = info->user_ptr[1];
2714 u8 *next_hop = NULL;
2716 if (!info->attrs[NL80211_ATTR_MAC])
2719 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2722 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2723 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2725 if (!rdev->ops->add_mpath)
2728 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2731 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2734 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2737 struct net_device *dev = info->user_ptr[1];
2740 if (info->attrs[NL80211_ATTR_MAC])
2741 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2743 if (!rdev->ops->del_mpath)
2746 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2749 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2752 struct net_device *dev = info->user_ptr[1];
2753 struct bss_parameters params;
2755 memset(¶ms, 0, sizeof(params));
2756 /* default to not changing parameters */
2757 params.use_cts_prot = -1;
2758 params.use_short_preamble = -1;
2759 params.use_short_slot_time = -1;
2760 params.ap_isolate = -1;
2761 params.ht_opmode = -1;
2763 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2764 params.use_cts_prot =
2765 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2766 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2767 params.use_short_preamble =
2768 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2769 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2770 params.use_short_slot_time =
2771 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2772 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2773 params.basic_rates =
2774 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2775 params.basic_rates_len =
2776 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2778 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2779 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2780 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2782 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
2784 if (!rdev->ops->change_bss)
2787 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2788 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2791 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2794 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2795 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2796 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2797 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2798 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2799 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2800 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2803 static int parse_reg_rule(struct nlattr *tb[],
2804 struct ieee80211_reg_rule *reg_rule)
2806 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2807 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2809 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2811 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2813 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2815 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2817 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2820 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2822 freq_range->start_freq_khz =
2823 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2824 freq_range->end_freq_khz =
2825 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2826 freq_range->max_bandwidth_khz =
2827 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2829 power_rule->max_eirp =
2830 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2832 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2833 power_rule->max_antenna_gain =
2834 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2839 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2845 * You should only get this when cfg80211 hasn't yet initialized
2846 * completely when built-in to the kernel right between the time
2847 * window between nl80211_init() and regulatory_init(), if that is
2850 mutex_lock(&cfg80211_mutex);
2851 if (unlikely(!cfg80211_regdomain)) {
2852 mutex_unlock(&cfg80211_mutex);
2853 return -EINPROGRESS;
2855 mutex_unlock(&cfg80211_mutex);
2857 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2860 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2862 r = regulatory_hint_user(data);
2867 static int nl80211_get_mesh_config(struct sk_buff *skb,
2868 struct genl_info *info)
2870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2871 struct net_device *dev = info->user_ptr[1];
2872 struct wireless_dev *wdev = dev->ieee80211_ptr;
2873 struct mesh_config cur_params;
2876 struct nlattr *pinfoattr;
2877 struct sk_buff *msg;
2879 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2882 if (!rdev->ops->get_mesh_config)
2886 /* If not connected, get default parameters */
2887 if (!wdev->mesh_id_len)
2888 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
2890 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
2897 /* Draw up a netlink message to send back */
2898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2901 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2902 NL80211_CMD_GET_MESH_CONFIG);
2905 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
2907 goto nla_put_failure;
2908 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2909 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2910 cur_params.dot11MeshRetryTimeout);
2911 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2912 cur_params.dot11MeshConfirmTimeout);
2913 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2914 cur_params.dot11MeshHoldingTimeout);
2915 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2916 cur_params.dot11MeshMaxPeerLinks);
2917 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2918 cur_params.dot11MeshMaxRetries);
2919 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2920 cur_params.dot11MeshTTL);
2921 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2922 cur_params.element_ttl);
2923 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2924 cur_params.auto_open_plinks);
2925 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2926 cur_params.dot11MeshHWMPmaxPREQretries);
2927 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2928 cur_params.path_refresh_time);
2929 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2930 cur_params.min_discovery_timeout);
2931 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2932 cur_params.dot11MeshHWMPactivePathTimeout);
2933 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2934 cur_params.dot11MeshHWMPpreqMinInterval);
2935 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2936 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2937 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2938 cur_params.dot11MeshHWMPRootMode);
2939 nla_nest_end(msg, pinfoattr);
2940 genlmsg_end(msg, hdr);
2941 return genlmsg_reply(msg, info);
2944 genlmsg_cancel(msg, hdr);
2950 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
2951 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2952 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2953 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2954 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2955 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2956 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2957 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
2958 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2960 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2961 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2962 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2963 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2964 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2965 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2968 static const struct nla_policy
2969 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
2970 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
2971 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
2972 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
2973 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
2974 .len = IEEE80211_MAX_DATA_LEN },
2975 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
2978 static int nl80211_parse_mesh_config(struct genl_info *info,
2979 struct mesh_config *cfg,
2982 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2985 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2987 if (table[attr_num]) {\
2988 cfg->param = nla_fn(table[attr_num]); \
2989 mask |= (1 << (attr_num - 1)); \
2994 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
2996 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2997 info->attrs[NL80211_ATTR_MESH_CONFIG],
2998 nl80211_meshconf_params_policy))
3001 /* This makes sure that there aren't more than 32 mesh config
3002 * parameters (otherwise our bitfield scheme would not work.) */
3003 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3005 /* Fill in the params struct */
3006 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3007 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3009 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3010 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3011 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3012 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3013 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3014 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3015 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3016 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3017 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3019 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3021 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3022 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3023 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3025 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3026 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3027 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3028 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3030 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3031 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3033 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3034 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3036 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3037 dot11MeshHWMPnetDiameterTraversalTime,
3038 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3040 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3041 dot11MeshHWMPRootMode, mask,
3042 NL80211_MESHCONF_HWMP_ROOTMODE,
3049 #undef FILL_IN_MESH_PARAM_IF_SET
3052 static int nl80211_parse_mesh_setup(struct genl_info *info,
3053 struct mesh_setup *setup)
3055 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3057 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3059 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3060 info->attrs[NL80211_ATTR_MESH_SETUP],
3061 nl80211_mesh_setup_params_policy))
3064 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3065 setup->path_sel_proto =
3066 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3067 IEEE80211_PATH_PROTOCOL_VENDOR :
3068 IEEE80211_PATH_PROTOCOL_HWMP;
3070 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3071 setup->path_metric =
3072 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3073 IEEE80211_PATH_METRIC_VENDOR :
3074 IEEE80211_PATH_METRIC_AIRTIME;
3077 if (tb[NL80211_MESH_SETUP_IE]) {
3078 struct nlattr *ieattr =
3079 tb[NL80211_MESH_SETUP_IE];
3080 if (!is_valid_ie_attr(ieattr))
3082 setup->ie = nla_data(ieattr);
3083 setup->ie_len = nla_len(ieattr);
3085 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3086 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3091 static int nl80211_update_mesh_config(struct sk_buff *skb,
3092 struct genl_info *info)
3094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3095 struct net_device *dev = info->user_ptr[1];
3096 struct wireless_dev *wdev = dev->ieee80211_ptr;
3097 struct mesh_config cfg;
3101 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3104 if (!rdev->ops->update_mesh_config)
3107 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3112 if (!wdev->mesh_id_len)
3116 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3124 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3126 struct sk_buff *msg;
3128 struct nlattr *nl_reg_rules;
3132 mutex_lock(&cfg80211_mutex);
3134 if (!cfg80211_regdomain)
3137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3143 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3144 NL80211_CMD_GET_REG);
3148 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3149 cfg80211_regdomain->alpha2);
3151 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3153 goto nla_put_failure;
3155 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3156 struct nlattr *nl_reg_rule;
3157 const struct ieee80211_reg_rule *reg_rule;
3158 const struct ieee80211_freq_range *freq_range;
3159 const struct ieee80211_power_rule *power_rule;
3161 reg_rule = &cfg80211_regdomain->reg_rules[i];
3162 freq_range = ®_rule->freq_range;
3163 power_rule = ®_rule->power_rule;
3165 nl_reg_rule = nla_nest_start(msg, i);
3167 goto nla_put_failure;
3169 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3171 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3172 freq_range->start_freq_khz);
3173 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3174 freq_range->end_freq_khz);
3175 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3176 freq_range->max_bandwidth_khz);
3177 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3178 power_rule->max_antenna_gain);
3179 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3180 power_rule->max_eirp);
3182 nla_nest_end(msg, nl_reg_rule);
3185 nla_nest_end(msg, nl_reg_rules);
3187 genlmsg_end(msg, hdr);
3188 err = genlmsg_reply(msg, info);
3192 genlmsg_cancel(msg, hdr);
3197 mutex_unlock(&cfg80211_mutex);
3201 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3203 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3204 struct nlattr *nl_reg_rule;
3205 char *alpha2 = NULL;
3206 int rem_reg_rules = 0, r = 0;
3207 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3208 struct ieee80211_regdomain *rd = NULL;
3210 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3213 if (!info->attrs[NL80211_ATTR_REG_RULES])
3216 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3218 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3221 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3225 mutex_lock(&cfg80211_mutex);
3227 if (!reg_is_valid_request(alpha2)) {
3232 size_of_regd = sizeof(struct ieee80211_regdomain) +
3233 (num_rules * sizeof(struct ieee80211_reg_rule));
3235 rd = kzalloc(size_of_regd, GFP_KERNEL);
3241 rd->n_reg_rules = num_rules;
3242 rd->alpha2[0] = alpha2[0];
3243 rd->alpha2[1] = alpha2[1];
3245 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3247 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3248 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3250 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3256 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3262 BUG_ON(rule_idx != num_rules);
3266 mutex_unlock(&cfg80211_mutex);
3271 mutex_unlock(&cfg80211_mutex);
3276 static int validate_scan_freqs(struct nlattr *freqs)
3278 struct nlattr *attr1, *attr2;
3279 int n_channels = 0, tmp1, tmp2;
3281 nla_for_each_nested(attr1, freqs, tmp1) {
3284 * Some hardware has a limited channel list for
3285 * scanning, and it is pretty much nonsensical
3286 * to scan for a channel twice, so disallow that
3287 * and don't require drivers to check that the
3288 * channel list they get isn't longer than what
3289 * they can scan, as long as they can scan all
3290 * the channels they registered at once.
3292 nla_for_each_nested(attr2, freqs, tmp2)
3293 if (attr1 != attr2 &&
3294 nla_get_u32(attr1) == nla_get_u32(attr2))
3301 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3304 struct net_device *dev = info->user_ptr[1];
3305 struct cfg80211_scan_request *request;
3306 struct nlattr *attr;
3307 struct wiphy *wiphy;
3308 int err, tmp, n_ssids = 0, n_channels, i;
3309 enum ieee80211_band band;
3312 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3315 wiphy = &rdev->wiphy;
3317 if (!rdev->ops->scan)
3323 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3324 n_channels = validate_scan_freqs(
3325 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3331 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3332 if (wiphy->bands[band])
3333 n_channels += wiphy->bands[band]->n_channels;
3336 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3337 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3340 if (n_ssids > wiphy->max_scan_ssids)
3343 if (info->attrs[NL80211_ATTR_IE])
3344 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3348 if (ie_len > wiphy->max_scan_ie_len)
3351 request = kzalloc(sizeof(*request)
3352 + sizeof(*request->ssids) * n_ssids
3353 + sizeof(*request->channels) * n_channels
3354 + ie_len, GFP_KERNEL);
3359 request->ssids = (void *)&request->channels[n_channels];
3360 request->n_ssids = n_ssids;
3363 request->ie = (void *)(request->ssids + n_ssids);
3365 request->ie = (void *)(request->channels + n_channels);
3369 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3370 /* user specified, bail out if channel not found */
3371 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3372 struct ieee80211_channel *chan;
3374 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3381 /* ignore disabled channels */
3382 if (chan->flags & IEEE80211_CHAN_DISABLED)
3385 request->channels[i] = chan;
3390 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3392 if (!wiphy->bands[band])
3394 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3395 struct ieee80211_channel *chan;
3397 chan = &wiphy->bands[band]->channels[j];
3399 if (chan->flags & IEEE80211_CHAN_DISABLED)
3402 request->channels[i] = chan;
3413 request->n_channels = i;
3416 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3417 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3418 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3422 request->ssids[i].ssid_len = nla_len(attr);
3423 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3428 if (info->attrs[NL80211_ATTR_IE]) {
3429 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3430 memcpy((void *)request->ie,
3431 nla_data(info->attrs[NL80211_ATTR_IE]),
3436 request->wiphy = &rdev->wiphy;
3438 rdev->scan_req = request;
3439 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3442 nl80211_send_scan_start(rdev, dev);
3446 rdev->scan_req = NULL;
3453 static int nl80211_start_sched_scan(struct sk_buff *skb,
3454 struct genl_info *info)
3456 struct cfg80211_sched_scan_request *request;
3457 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3458 struct net_device *dev = info->user_ptr[1];
3459 struct nlattr *attr;
3460 struct wiphy *wiphy;
3461 int err, tmp, n_ssids = 0, n_channels, i;
3463 enum ieee80211_band band;
3466 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3467 !rdev->ops->sched_scan_start)
3470 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3473 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3476 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3480 wiphy = &rdev->wiphy;
3482 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3483 n_channels = validate_scan_freqs(
3484 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3490 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3491 if (wiphy->bands[band])
3492 n_channels += wiphy->bands[band]->n_channels;
3495 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3496 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3500 if (n_ssids > wiphy->max_scan_ssids)
3503 if (info->attrs[NL80211_ATTR_IE])
3504 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3508 if (ie_len > wiphy->max_scan_ie_len)
3511 mutex_lock(&rdev->sched_scan_mtx);
3513 if (rdev->sched_scan_req) {
3518 request = kzalloc(sizeof(*request)
3519 + sizeof(*request->ssids) * n_ssids
3520 + sizeof(*request->channels) * n_channels
3521 + ie_len, GFP_KERNEL);
3528 request->ssids = (void *)&request->channels[n_channels];
3529 request->n_ssids = n_ssids;
3532 request->ie = (void *)(request->ssids + n_ssids);
3534 request->ie = (void *)(request->channels + n_channels);
3538 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3539 /* user specified, bail out if channel not found */
3540 nla_for_each_nested(attr,
3541 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3543 struct ieee80211_channel *chan;
3545 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3552 /* ignore disabled channels */
3553 if (chan->flags & IEEE80211_CHAN_DISABLED)
3556 request->channels[i] = chan;
3561 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3563 if (!wiphy->bands[band])
3565 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3566 struct ieee80211_channel *chan;
3568 chan = &wiphy->bands[band]->channels[j];
3570 if (chan->flags & IEEE80211_CHAN_DISABLED)
3573 request->channels[i] = chan;
3584 request->n_channels = i;
3587 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3588 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3590 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3594 request->ssids[i].ssid_len = nla_len(attr);
3595 memcpy(request->ssids[i].ssid, nla_data(attr),
3601 if (info->attrs[NL80211_ATTR_IE]) {
3602 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3603 memcpy((void *)request->ie,
3604 nla_data(info->attrs[NL80211_ATTR_IE]),
3609 request->wiphy = &rdev->wiphy;
3610 request->interval = interval;
3612 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3614 rdev->sched_scan_req = request;
3615 nl80211_send_sched_scan(rdev, dev,
3616 NL80211_CMD_START_SCHED_SCAN);
3623 mutex_unlock(&rdev->sched_scan_mtx);
3627 static int nl80211_stop_sched_scan(struct sk_buff *skb,
3628 struct genl_info *info)
3630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3633 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3634 !rdev->ops->sched_scan_stop)
3637 mutex_lock(&rdev->sched_scan_mtx);
3638 err = __cfg80211_stop_sched_scan(rdev, false);
3639 mutex_unlock(&rdev->sched_scan_mtx);
3644 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3646 struct cfg80211_registered_device *rdev,
3647 struct wireless_dev *wdev,
3648 struct cfg80211_internal_bss *intbss)
3650 struct cfg80211_bss *res = &intbss->pub;
3655 ASSERT_WDEV_LOCK(wdev);
3657 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
3658 NL80211_CMD_NEW_SCAN_RESULTS);
3662 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3664 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3665 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3667 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3669 goto nla_put_failure;
3670 if (!is_zero_ether_addr(res->bssid))
3671 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3672 if (res->information_elements && res->len_information_elements)
3673 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3674 res->len_information_elements,
3675 res->information_elements);
3676 if (res->beacon_ies && res->len_beacon_ies &&
3677 res->beacon_ies != res->information_elements)
3678 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3679 res->len_beacon_ies, res->beacon_ies);
3681 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3682 if (res->beacon_interval)
3683 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3684 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3685 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3686 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3687 jiffies_to_msecs(jiffies - intbss->ts));
3689 switch (rdev->wiphy.signal_type) {
3690 case CFG80211_SIGNAL_TYPE_MBM:
3691 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3693 case CFG80211_SIGNAL_TYPE_UNSPEC:
3694 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3700 switch (wdev->iftype) {
3701 case NL80211_IFTYPE_P2P_CLIENT:
3702 case NL80211_IFTYPE_STATION:
3703 if (intbss == wdev->current_bss)
3704 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3705 NL80211_BSS_STATUS_ASSOCIATED);
3706 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3707 if (intbss != wdev->auth_bsses[i])
3709 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3710 NL80211_BSS_STATUS_AUTHENTICATED);
3714 case NL80211_IFTYPE_ADHOC:
3715 if (intbss == wdev->current_bss)
3716 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3717 NL80211_BSS_STATUS_IBSS_JOINED);
3723 nla_nest_end(msg, bss);
3725 return genlmsg_end(msg, hdr);
3728 genlmsg_cancel(msg, hdr);
3732 static int nl80211_dump_scan(struct sk_buff *skb,
3733 struct netlink_callback *cb)
3735 struct cfg80211_registered_device *rdev;
3736 struct net_device *dev;
3737 struct cfg80211_internal_bss *scan;
3738 struct wireless_dev *wdev;
3739 int start = cb->args[1], idx = 0;
3742 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3746 wdev = dev->ieee80211_ptr;
3749 spin_lock_bh(&rdev->bss_lock);
3750 cfg80211_bss_expire(rdev);
3752 cb->seq = rdev->bss_generation;
3754 list_for_each_entry(scan, &rdev->bss_list, list) {
3757 if (nl80211_send_bss(skb, cb,
3758 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3759 rdev, wdev, scan) < 0) {
3765 spin_unlock_bh(&rdev->bss_lock);
3769 nl80211_finish_netdev_dump(rdev);
3774 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3775 int flags, struct net_device *dev,
3776 struct survey_info *survey)
3779 struct nlattr *infoattr;
3781 hdr = nl80211hdr_put(msg, pid, seq, flags,
3782 NL80211_CMD_NEW_SURVEY_RESULTS);
3786 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3788 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3790 goto nla_put_failure;
3792 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3793 survey->channel->center_freq);
3794 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3795 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3797 if (survey->filled & SURVEY_INFO_IN_USE)
3798 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
3799 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3800 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3801 survey->channel_time);
3802 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3803 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3804 survey->channel_time_busy);
3805 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3806 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3807 survey->channel_time_ext_busy);
3808 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3809 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3810 survey->channel_time_rx);
3811 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3812 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3813 survey->channel_time_tx);
3815 nla_nest_end(msg, infoattr);
3817 return genlmsg_end(msg, hdr);
3820 genlmsg_cancel(msg, hdr);
3824 static int nl80211_dump_survey(struct sk_buff *skb,
3825 struct netlink_callback *cb)
3827 struct survey_info survey;
3828 struct cfg80211_registered_device *dev;
3829 struct net_device *netdev;
3830 int survey_idx = cb->args[1];
3833 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3837 if (!dev->ops->dump_survey) {
3843 struct ieee80211_channel *chan;
3845 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3852 /* Survey without a channel doesn't make sense */
3853 if (!survey.channel) {
3858 chan = ieee80211_get_channel(&dev->wiphy,
3859 survey.channel->center_freq);
3860 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
3865 if (nl80211_send_survey(skb,
3866 NETLINK_CB(cb->skb).pid,
3867 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3875 cb->args[1] = survey_idx;
3878 nl80211_finish_netdev_dump(dev);
3882 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3884 return auth_type <= NL80211_AUTHTYPE_MAX;
3887 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3889 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3890 NL80211_WPA_VERSION_2));
3893 static bool nl80211_valid_akm_suite(u32 akm)
3895 return akm == WLAN_AKM_SUITE_8021X ||
3896 akm == WLAN_AKM_SUITE_PSK;
3899 static bool nl80211_valid_cipher_suite(u32 cipher)
3901 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3902 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3903 cipher == WLAN_CIPHER_SUITE_TKIP ||
3904 cipher == WLAN_CIPHER_SUITE_CCMP ||
3905 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
3909 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3912 struct net_device *dev = info->user_ptr[1];
3913 struct ieee80211_channel *chan;
3914 const u8 *bssid, *ssid, *ie = NULL;
3915 int err, ssid_len, ie_len = 0;
3916 enum nl80211_auth_type auth_type;
3917 struct key_parse key;
3918 bool local_state_change;
3920 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3923 if (!info->attrs[NL80211_ATTR_MAC])
3926 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3929 if (!info->attrs[NL80211_ATTR_SSID])
3932 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3935 err = nl80211_parse_key(info, &key);
3940 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3942 if (!key.p.key || !key.p.key_len)
3944 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3945 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3946 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3947 key.p.key_len != WLAN_KEY_LEN_WEP104))
3959 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3960 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3969 if (!rdev->ops->auth)
3972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
3973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3976 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3977 chan = ieee80211_get_channel(&rdev->wiphy,
3978 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3979 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3982 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3983 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3985 if (info->attrs[NL80211_ATTR_IE]) {
3986 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3987 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3990 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3991 if (!nl80211_valid_auth_type(auth_type))
3994 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3996 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3997 ssid, ssid_len, ie, ie_len,
3998 key.p.key, key.p.key_len, key.idx,
3999 local_state_change);
4002 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4003 struct genl_info *info,
4004 struct cfg80211_crypto_settings *settings,
4007 memset(settings, 0, sizeof(*settings));
4009 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4011 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4013 proto = nla_get_u16(
4014 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4015 settings->control_port_ethertype = cpu_to_be16(proto);
4016 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4019 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4020 settings->control_port_no_encrypt = true;
4022 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4024 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4028 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4029 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4030 settings->n_ciphers_pairwise = len / sizeof(u32);
4032 if (len % sizeof(u32))
4035 if (settings->n_ciphers_pairwise > cipher_limit)
4038 memcpy(settings->ciphers_pairwise, data, len);
4040 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4041 if (!nl80211_valid_cipher_suite(
4042 settings->ciphers_pairwise[i]))
4046 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4047 settings->cipher_group =
4048 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4049 if (!nl80211_valid_cipher_suite(settings->cipher_group))
4053 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4054 settings->wpa_versions =
4055 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4056 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4060 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4064 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4065 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4066 settings->n_akm_suites = len / sizeof(u32);
4068 if (len % sizeof(u32))
4071 memcpy(settings->akm_suites, data, len);
4073 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4074 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
4081 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4084 struct net_device *dev = info->user_ptr[1];
4085 struct cfg80211_crypto_settings crypto;
4086 struct ieee80211_channel *chan;
4087 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4088 int err, ssid_len, ie_len = 0;
4089 bool use_mfp = false;
4091 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4094 if (!info->attrs[NL80211_ATTR_MAC] ||
4095 !info->attrs[NL80211_ATTR_SSID] ||
4096 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4099 if (!rdev->ops->assoc)
4102 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4103 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4106 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4108 chan = ieee80211_get_channel(&rdev->wiphy,
4109 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4110 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4113 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4114 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4116 if (info->attrs[NL80211_ATTR_IE]) {
4117 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4118 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4121 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4122 enum nl80211_mfp mfp =
4123 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4124 if (mfp == NL80211_MFP_REQUIRED)
4126 else if (mfp != NL80211_MFP_NO)
4130 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4131 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4133 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4135 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4136 ssid, ssid_len, ie, ie_len, use_mfp,
4142 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4144 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4145 struct net_device *dev = info->user_ptr[1];
4146 const u8 *ie = NULL, *bssid;
4149 bool local_state_change;
4151 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4154 if (!info->attrs[NL80211_ATTR_MAC])
4157 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4160 if (!rdev->ops->deauth)
4163 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4164 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4167 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4169 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4170 if (reason_code == 0) {
4171 /* Reason Code 0 is reserved */
4175 if (info->attrs[NL80211_ATTR_IE]) {
4176 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4177 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4180 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4182 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4183 local_state_change);
4186 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4189 struct net_device *dev = info->user_ptr[1];
4190 const u8 *ie = NULL, *bssid;
4193 bool local_state_change;
4195 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4198 if (!info->attrs[NL80211_ATTR_MAC])
4201 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4204 if (!rdev->ops->disassoc)
4207 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4208 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4211 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4213 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4214 if (reason_code == 0) {
4215 /* Reason Code 0 is reserved */
4219 if (info->attrs[NL80211_ATTR_IE]) {
4220 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4221 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4224 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4226 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4227 local_state_change);
4231 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4232 int mcast_rate[IEEE80211_NUM_BANDS],
4235 struct wiphy *wiphy = &rdev->wiphy;
4239 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4240 struct ieee80211_supported_band *sband;
4242 sband = wiphy->bands[band];
4246 for (i = 0; i < sband->n_bitrates; i++) {
4247 if (sband->bitrates[i].bitrate == rateval) {
4248 mcast_rate[band] = i + 1;
4258 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4261 struct net_device *dev = info->user_ptr[1];
4262 struct cfg80211_ibss_params ibss;
4263 struct wiphy *wiphy;
4264 struct cfg80211_cached_keys *connkeys = NULL;
4267 memset(&ibss, 0, sizeof(ibss));
4269 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4272 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4273 !info->attrs[NL80211_ATTR_SSID] ||
4274 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4277 ibss.beacon_interval = 100;
4279 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4280 ibss.beacon_interval =
4281 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4282 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4286 if (!rdev->ops->join_ibss)
4289 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4292 wiphy = &rdev->wiphy;
4294 if (info->attrs[NL80211_ATTR_MAC])
4295 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4296 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4297 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4299 if (info->attrs[NL80211_ATTR_IE]) {
4300 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4301 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4304 ibss.channel = ieee80211_get_channel(wiphy,
4305 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4306 if (!ibss.channel ||
4307 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4308 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4311 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4312 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4314 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4316 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4318 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4319 struct ieee80211_supported_band *sband =
4320 wiphy->bands[ibss.channel->band];
4326 for (i = 0; i < n_rates; i++) {
4327 int rate = (rates[i] & 0x7f) * 5;
4330 for (j = 0; j < sband->n_bitrates; j++) {
4331 if (sband->bitrates[j].bitrate == rate) {
4333 ibss.basic_rates |= BIT(j);
4342 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4343 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4344 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4347 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4348 connkeys = nl80211_parse_connkeys(rdev,
4349 info->attrs[NL80211_ATTR_KEYS]);
4350 if (IS_ERR(connkeys))
4351 return PTR_ERR(connkeys);
4354 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4360 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4363 struct net_device *dev = info->user_ptr[1];
4365 if (!rdev->ops->leave_ibss)
4368 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4371 return cfg80211_leave_ibss(rdev, dev, false);
4374 #ifdef CONFIG_NL80211_TESTMODE
4375 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4379 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4384 if (!info->attrs[NL80211_ATTR_TESTDATA])
4388 if (rdev->ops->testmode_cmd) {
4389 rdev->testmode_info = info;
4390 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4391 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4392 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4393 rdev->testmode_info = NULL;
4399 static int nl80211_testmode_dump(struct sk_buff *skb,
4400 struct netlink_callback *cb)
4402 struct cfg80211_registered_device *dev;
4410 * 0 is a valid index, but not valid for args[0],
4411 * so we need to offset by 1.
4413 phy_idx = cb->args[0] - 1;
4415 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4416 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4420 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4422 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4423 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4425 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4429 data = nla_data((void *)cb->args[1]);
4430 data_len = nla_len((void *)cb->args[1]);
4433 mutex_lock(&cfg80211_mutex);
4434 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4436 mutex_unlock(&cfg80211_mutex);
4439 cfg80211_lock_rdev(dev);
4440 mutex_unlock(&cfg80211_mutex);
4442 if (!dev->ops->testmode_dump) {
4448 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4449 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4450 NL80211_CMD_TESTMODE);
4451 struct nlattr *tmdata;
4453 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4454 genlmsg_cancel(skb, hdr);
4458 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4460 genlmsg_cancel(skb, hdr);
4463 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4465 nla_nest_end(skb, tmdata);
4467 if (err == -ENOBUFS || err == -ENOENT) {
4468 genlmsg_cancel(skb, hdr);
4471 genlmsg_cancel(skb, hdr);
4475 genlmsg_end(skb, hdr);
4480 cb->args[0] = phy_idx + 1;
4482 cfg80211_unlock_rdev(dev);
4486 static struct sk_buff *
4487 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4488 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4490 struct sk_buff *skb;
4492 struct nlattr *data;
4494 skb = nlmsg_new(approxlen + 100, gfp);
4498 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4504 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4505 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4507 ((void **)skb->cb)[0] = rdev;
4508 ((void **)skb->cb)[1] = hdr;
4509 ((void **)skb->cb)[2] = data;
4518 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4521 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4523 if (WARN_ON(!rdev->testmode_info))
4526 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4527 rdev->testmode_info->snd_pid,
4528 rdev->testmode_info->snd_seq,
4531 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4533 int cfg80211_testmode_reply(struct sk_buff *skb)
4535 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4536 void *hdr = ((void **)skb->cb)[1];
4537 struct nlattr *data = ((void **)skb->cb)[2];
4539 if (WARN_ON(!rdev->testmode_info)) {
4544 nla_nest_end(skb, data);
4545 genlmsg_end(skb, hdr);
4546 return genlmsg_reply(skb, rdev->testmode_info);
4548 EXPORT_SYMBOL(cfg80211_testmode_reply);
4550 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4551 int approxlen, gfp_t gfp)
4553 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4555 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4557 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4559 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4561 void *hdr = ((void **)skb->cb)[1];
4562 struct nlattr *data = ((void **)skb->cb)[2];
4564 nla_nest_end(skb, data);
4565 genlmsg_end(skb, hdr);
4566 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4568 EXPORT_SYMBOL(cfg80211_testmode_event);
4571 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4574 struct net_device *dev = info->user_ptr[1];
4575 struct cfg80211_connect_params connect;
4576 struct wiphy *wiphy;
4577 struct cfg80211_cached_keys *connkeys = NULL;
4580 memset(&connect, 0, sizeof(connect));
4582 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4585 if (!info->attrs[NL80211_ATTR_SSID] ||
4586 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4589 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4591 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4592 if (!nl80211_valid_auth_type(connect.auth_type))
4595 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4597 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4599 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
4600 NL80211_MAX_NR_CIPHER_SUITES);
4604 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4605 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4608 wiphy = &rdev->wiphy;
4610 if (info->attrs[NL80211_ATTR_MAC])
4611 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4612 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4613 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4615 if (info->attrs[NL80211_ATTR_IE]) {
4616 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4617 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4620 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4622 ieee80211_get_channel(wiphy,
4623 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4624 if (!connect.channel ||
4625 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4629 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4630 connkeys = nl80211_parse_connkeys(rdev,
4631 info->attrs[NL80211_ATTR_KEYS]);
4632 if (IS_ERR(connkeys))
4633 return PTR_ERR(connkeys);
4636 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4642 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4645 struct net_device *dev = info->user_ptr[1];
4648 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4649 reason = WLAN_REASON_DEAUTH_LEAVING;
4651 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4656 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4657 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4660 return cfg80211_disconnect(rdev, dev, reason, true);
4663 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4670 if (!info->attrs[NL80211_ATTR_PID])
4673 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4675 net = get_net_ns_by_pid(pid);
4677 return PTR_ERR(net);
4681 /* check if anything to do */
4682 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4683 err = cfg80211_switch_netns(rdev, net);
4689 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4692 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4693 struct cfg80211_pmksa *pmksa) = NULL;
4694 struct net_device *dev = info->user_ptr[1];
4695 struct cfg80211_pmksa pmksa;
4697 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4699 if (!info->attrs[NL80211_ATTR_MAC])
4702 if (!info->attrs[NL80211_ATTR_PMKID])
4705 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4706 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4708 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4709 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4712 switch (info->genlhdr->cmd) {
4713 case NL80211_CMD_SET_PMKSA:
4714 rdev_ops = rdev->ops->set_pmksa;
4716 case NL80211_CMD_DEL_PMKSA:
4717 rdev_ops = rdev->ops->del_pmksa;
4727 return rdev_ops(&rdev->wiphy, dev, &pmksa);
4730 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4733 struct net_device *dev = info->user_ptr[1];
4735 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4736 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4739 if (!rdev->ops->flush_pmksa)
4742 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4745 static int nl80211_remain_on_channel(struct sk_buff *skb,
4746 struct genl_info *info)
4748 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4749 struct net_device *dev = info->user_ptr[1];
4750 struct ieee80211_channel *chan;
4751 struct sk_buff *msg;
4754 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4758 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4759 !info->attrs[NL80211_ATTR_DURATION])
4762 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4765 * We should be on that channel for at least one jiffie,
4766 * and more than 5 seconds seems excessive.
4768 if (!duration || !msecs_to_jiffies(duration) ||
4769 duration > rdev->wiphy.max_remain_on_channel_duration)
4772 if (!rdev->ops->remain_on_channel)
4775 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4776 channel_type = nla_get_u32(
4777 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4778 if (channel_type != NL80211_CHAN_NO_HT &&
4779 channel_type != NL80211_CHAN_HT20 &&
4780 channel_type != NL80211_CHAN_HT40PLUS &&
4781 channel_type != NL80211_CHAN_HT40MINUS)
4785 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4786 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4790 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4794 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4795 NL80211_CMD_REMAIN_ON_CHANNEL);
4802 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4803 channel_type, duration, &cookie);
4808 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4810 genlmsg_end(msg, hdr);
4812 return genlmsg_reply(msg, info);
4821 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4822 struct genl_info *info)
4824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4825 struct net_device *dev = info->user_ptr[1];
4828 if (!info->attrs[NL80211_ATTR_COOKIE])
4831 if (!rdev->ops->cancel_remain_on_channel)
4834 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4836 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
4839 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4840 u8 *rates, u8 rates_len)
4845 for (i = 0; i < rates_len; i++) {
4846 int rate = (rates[i] & 0x7f) * 5;
4848 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4849 struct ieee80211_rate *srate =
4850 &sband->bitrates[ridx];
4851 if (rate == srate->bitrate) {
4856 if (ridx == sband->n_bitrates)
4857 return 0; /* rate not found */
4863 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
4864 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4865 .len = NL80211_MAX_SUPP_RATES },
4868 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4869 struct genl_info *info)
4871 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4873 struct cfg80211_bitrate_mask mask;
4875 struct net_device *dev = info->user_ptr[1];
4876 struct nlattr *tx_rates;
4877 struct ieee80211_supported_band *sband;
4879 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4882 if (!rdev->ops->set_bitrate_mask)
4885 memset(&mask, 0, sizeof(mask));
4886 /* Default to all rates enabled */
4887 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4888 sband = rdev->wiphy.bands[i];
4889 mask.control[i].legacy =
4890 sband ? (1 << sband->n_bitrates) - 1 : 0;
4894 * The nested attribute uses enum nl80211_band as the index. This maps
4895 * directly to the enum ieee80211_band values used in cfg80211.
4897 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4899 enum ieee80211_band band = nla_type(tx_rates);
4900 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4902 sband = rdev->wiphy.bands[band];
4905 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4906 nla_len(tx_rates), nl80211_txattr_policy);
4907 if (tb[NL80211_TXRATE_LEGACY]) {
4908 mask.control[band].legacy = rateset_to_mask(
4910 nla_data(tb[NL80211_TXRATE_LEGACY]),
4911 nla_len(tb[NL80211_TXRATE_LEGACY]));
4912 if (mask.control[band].legacy == 0)
4917 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
4920 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
4922 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4923 struct net_device *dev = info->user_ptr[1];
4924 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
4926 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4929 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4930 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
4932 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4933 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4934 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4935 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4936 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4938 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4941 /* not much point in registering if we can't reply */
4942 if (!rdev->ops->mgmt_tx)
4945 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
4947 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4948 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
4951 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
4953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4954 struct net_device *dev = info->user_ptr[1];
4955 struct ieee80211_channel *chan;
4956 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4957 bool channel_type_valid = false;
4962 struct sk_buff *msg;
4963 unsigned int wait = 0;
4966 if (!info->attrs[NL80211_ATTR_FRAME] ||
4967 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4970 if (!rdev->ops->mgmt_tx)
4973 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4974 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4975 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4976 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4977 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4978 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4979 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4982 if (info->attrs[NL80211_ATTR_DURATION]) {
4983 if (!rdev->ops->mgmt_tx_cancel_wait)
4985 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4988 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4989 channel_type = nla_get_u32(
4990 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4991 if (channel_type != NL80211_CHAN_NO_HT &&
4992 channel_type != NL80211_CHAN_HT20 &&
4993 channel_type != NL80211_CHAN_HT40PLUS &&
4994 channel_type != NL80211_CHAN_HT40MINUS)
4996 channel_type_valid = true;
4999 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5001 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5002 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5006 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5010 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5017 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5018 channel_type_valid, wait,
5019 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5020 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5025 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5027 genlmsg_end(msg, hdr);
5028 return genlmsg_reply(msg, info);
5037 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5040 struct net_device *dev = info->user_ptr[1];
5043 if (!info->attrs[NL80211_ATTR_COOKIE])
5046 if (!rdev->ops->mgmt_tx_cancel_wait)
5049 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5050 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5051 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5052 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5053 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5054 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5057 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5059 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5062 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5065 struct wireless_dev *wdev;
5066 struct net_device *dev = info->user_ptr[1];
5071 if (!info->attrs[NL80211_ATTR_PS_STATE])
5074 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5076 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5079 wdev = dev->ieee80211_ptr;
5081 if (!rdev->ops->set_power_mgmt)
5084 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5086 if (state == wdev->ps)
5089 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5096 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5099 enum nl80211_ps_state ps_state;
5100 struct wireless_dev *wdev;
5101 struct net_device *dev = info->user_ptr[1];
5102 struct sk_buff *msg;
5106 wdev = dev->ieee80211_ptr;
5108 if (!rdev->ops->set_power_mgmt)
5111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5115 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5116 NL80211_CMD_GET_POWER_SAVE);
5123 ps_state = NL80211_PS_ENABLED;
5125 ps_state = NL80211_PS_DISABLED;
5127 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5129 genlmsg_end(msg, hdr);
5130 return genlmsg_reply(msg, info);
5139 static struct nla_policy
5140 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5141 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5142 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5143 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5146 static int nl80211_set_cqm_rssi(struct genl_info *info,
5147 s32 threshold, u32 hysteresis)
5149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5150 struct wireless_dev *wdev;
5151 struct net_device *dev = info->user_ptr[1];
5156 wdev = dev->ieee80211_ptr;
5158 if (!rdev->ops->set_cqm_rssi_config)
5161 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5162 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5165 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5166 threshold, hysteresis);
5169 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5171 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5175 cqm = info->attrs[NL80211_ATTR_CQM];
5181 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5182 nl80211_attr_cqm_policy);
5186 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5187 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5190 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5191 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5192 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5200 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5202 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5203 struct net_device *dev = info->user_ptr[1];
5204 struct mesh_config cfg;
5205 struct mesh_setup setup;
5208 /* start with default */
5209 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5210 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5212 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5213 /* and parse parameters if given */
5214 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5219 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5220 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5223 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5224 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5226 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5227 /* parse additional setup parameters if given */
5228 err = nl80211_parse_mesh_setup(info, &setup);
5233 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5236 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5238 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5239 struct net_device *dev = info->user_ptr[1];
5241 return cfg80211_leave_mesh(rdev, dev);
5244 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5246 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5247 struct sk_buff *msg;
5250 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5257 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5258 NL80211_CMD_GET_WOWLAN);
5260 goto nla_put_failure;
5263 struct nlattr *nl_wowlan;
5265 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5267 goto nla_put_failure;
5269 if (rdev->wowlan->any)
5270 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5271 if (rdev->wowlan->disconnect)
5272 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5273 if (rdev->wowlan->magic_pkt)
5274 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5275 if (rdev->wowlan->n_patterns) {
5276 struct nlattr *nl_pats, *nl_pat;
5279 nl_pats = nla_nest_start(msg,
5280 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5282 goto nla_put_failure;
5284 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5285 nl_pat = nla_nest_start(msg, i + 1);
5287 goto nla_put_failure;
5288 pat_len = rdev->wowlan->patterns[i].pattern_len;
5289 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5290 DIV_ROUND_UP(pat_len, 8),
5291 rdev->wowlan->patterns[i].mask);
5292 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5294 rdev->wowlan->patterns[i].pattern);
5295 nla_nest_end(msg, nl_pat);
5297 nla_nest_end(msg, nl_pats);
5300 nla_nest_end(msg, nl_wowlan);
5303 genlmsg_end(msg, hdr);
5304 return genlmsg_reply(msg, info);
5311 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5314 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5315 struct cfg80211_wowlan no_triggers = {};
5316 struct cfg80211_wowlan new_triggers = {};
5317 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5320 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5323 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5326 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5327 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5328 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5329 nl80211_wowlan_policy);
5333 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5334 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5336 new_triggers.any = true;
5339 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5340 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5342 new_triggers.disconnect = true;
5345 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5346 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5348 new_triggers.magic_pkt = true;
5351 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5354 int rem, pat_len, mask_len;
5355 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5357 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5360 if (n_patterns > wowlan->n_patterns)
5363 new_triggers.patterns = kcalloc(n_patterns,
5364 sizeof(new_triggers.patterns[0]),
5366 if (!new_triggers.patterns)
5369 new_triggers.n_patterns = n_patterns;
5372 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5374 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5375 nla_data(pat), nla_len(pat), NULL);
5377 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5378 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5380 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5381 mask_len = DIV_ROUND_UP(pat_len, 8);
5382 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5385 if (pat_len > wowlan->pattern_max_len ||
5386 pat_len < wowlan->pattern_min_len)
5389 new_triggers.patterns[i].mask =
5390 kmalloc(mask_len + pat_len, GFP_KERNEL);
5391 if (!new_triggers.patterns[i].mask) {
5395 new_triggers.patterns[i].pattern =
5396 new_triggers.patterns[i].mask + mask_len;
5397 memcpy(new_triggers.patterns[i].mask,
5398 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5400 new_triggers.patterns[i].pattern_len = pat_len;
5401 memcpy(new_triggers.patterns[i].pattern,
5402 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5408 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5409 struct cfg80211_wowlan *ntrig;
5410 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5416 cfg80211_rdev_free_wowlan(rdev);
5417 rdev->wowlan = ntrig;
5420 cfg80211_rdev_free_wowlan(rdev);
5421 rdev->wowlan = NULL;
5426 for (i = 0; i < new_triggers.n_patterns; i++)
5427 kfree(new_triggers.patterns[i].mask);
5428 kfree(new_triggers.patterns);
5432 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5435 struct net_device *dev = info->user_ptr[1];
5436 struct wireless_dev *wdev = dev->ieee80211_ptr;
5437 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5438 struct cfg80211_gtk_rekey_data rekey_data;
5441 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5444 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5445 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5446 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5447 nl80211_rekey_policy);
5451 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5453 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5455 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5458 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5460 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5462 memcpy(rekey_data.replay_ctr,
5463 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5464 NL80211_REPLAY_CTR_LEN);
5467 if (!wdev->current_bss) {
5472 if (!rdev->ops->set_rekey_data) {
5477 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5483 #define NL80211_FLAG_NEED_WIPHY 0x01
5484 #define NL80211_FLAG_NEED_NETDEV 0x02
5485 #define NL80211_FLAG_NEED_RTNL 0x04
5486 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5487 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5488 NL80211_FLAG_CHECK_NETDEV_UP)
5490 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5491 struct genl_info *info)
5493 struct cfg80211_registered_device *rdev;
5494 struct net_device *dev;
5496 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5501 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5502 rdev = cfg80211_get_dev_from_info(info);
5506 return PTR_ERR(rdev);
5508 info->user_ptr[0] = rdev;
5509 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5510 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5516 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5517 !netif_running(dev)) {
5518 cfg80211_unlock_rdev(rdev);
5524 info->user_ptr[0] = rdev;
5525 info->user_ptr[1] = dev;
5531 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5532 struct genl_info *info)
5534 if (info->user_ptr[0])
5535 cfg80211_unlock_rdev(info->user_ptr[0]);
5536 if (info->user_ptr[1])
5537 dev_put(info->user_ptr[1]);
5538 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5542 static struct genl_ops nl80211_ops[] = {
5544 .cmd = NL80211_CMD_GET_WIPHY,
5545 .doit = nl80211_get_wiphy,
5546 .dumpit = nl80211_dump_wiphy,
5547 .policy = nl80211_policy,
5548 /* can be retrieved by unprivileged users */
5549 .internal_flags = NL80211_FLAG_NEED_WIPHY,
5552 .cmd = NL80211_CMD_SET_WIPHY,
5553 .doit = nl80211_set_wiphy,
5554 .policy = nl80211_policy,
5555 .flags = GENL_ADMIN_PERM,
5556 .internal_flags = NL80211_FLAG_NEED_RTNL,
5559 .cmd = NL80211_CMD_GET_INTERFACE,
5560 .doit = nl80211_get_interface,
5561 .dumpit = nl80211_dump_interface,
5562 .policy = nl80211_policy,
5563 /* can be retrieved by unprivileged users */
5564 .internal_flags = NL80211_FLAG_NEED_NETDEV,
5567 .cmd = NL80211_CMD_SET_INTERFACE,
5568 .doit = nl80211_set_interface,
5569 .policy = nl80211_policy,
5570 .flags = GENL_ADMIN_PERM,
5571 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5572 NL80211_FLAG_NEED_RTNL,
5575 .cmd = NL80211_CMD_NEW_INTERFACE,
5576 .doit = nl80211_new_interface,
5577 .policy = nl80211_policy,
5578 .flags = GENL_ADMIN_PERM,
5579 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5580 NL80211_FLAG_NEED_RTNL,
5583 .cmd = NL80211_CMD_DEL_INTERFACE,
5584 .doit = nl80211_del_interface,
5585 .policy = nl80211_policy,
5586 .flags = GENL_ADMIN_PERM,
5587 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5588 NL80211_FLAG_NEED_RTNL,
5591 .cmd = NL80211_CMD_GET_KEY,
5592 .doit = nl80211_get_key,
5593 .policy = nl80211_policy,
5594 .flags = GENL_ADMIN_PERM,
5595 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5596 NL80211_FLAG_NEED_RTNL,
5599 .cmd = NL80211_CMD_SET_KEY,
5600 .doit = nl80211_set_key,
5601 .policy = nl80211_policy,
5602 .flags = GENL_ADMIN_PERM,
5603 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5604 NL80211_FLAG_NEED_RTNL,
5607 .cmd = NL80211_CMD_NEW_KEY,
5608 .doit = nl80211_new_key,
5609 .policy = nl80211_policy,
5610 .flags = GENL_ADMIN_PERM,
5611 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5612 NL80211_FLAG_NEED_RTNL,
5615 .cmd = NL80211_CMD_DEL_KEY,
5616 .doit = nl80211_del_key,
5617 .policy = nl80211_policy,
5618 .flags = GENL_ADMIN_PERM,
5619 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5620 NL80211_FLAG_NEED_RTNL,
5623 .cmd = NL80211_CMD_SET_BEACON,
5624 .policy = nl80211_policy,
5625 .flags = GENL_ADMIN_PERM,
5626 .doit = nl80211_addset_beacon,
5627 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5628 NL80211_FLAG_NEED_RTNL,
5631 .cmd = NL80211_CMD_NEW_BEACON,
5632 .policy = nl80211_policy,
5633 .flags = GENL_ADMIN_PERM,
5634 .doit = nl80211_addset_beacon,
5635 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5636 NL80211_FLAG_NEED_RTNL,
5639 .cmd = NL80211_CMD_DEL_BEACON,
5640 .policy = nl80211_policy,
5641 .flags = GENL_ADMIN_PERM,
5642 .doit = nl80211_del_beacon,
5643 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5644 NL80211_FLAG_NEED_RTNL,
5647 .cmd = NL80211_CMD_GET_STATION,
5648 .doit = nl80211_get_station,
5649 .dumpit = nl80211_dump_station,
5650 .policy = nl80211_policy,
5651 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5652 NL80211_FLAG_NEED_RTNL,
5655 .cmd = NL80211_CMD_SET_STATION,
5656 .doit = nl80211_set_station,
5657 .policy = nl80211_policy,
5658 .flags = GENL_ADMIN_PERM,
5659 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5660 NL80211_FLAG_NEED_RTNL,
5663 .cmd = NL80211_CMD_NEW_STATION,
5664 .doit = nl80211_new_station,
5665 .policy = nl80211_policy,
5666 .flags = GENL_ADMIN_PERM,
5667 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5668 NL80211_FLAG_NEED_RTNL,
5671 .cmd = NL80211_CMD_DEL_STATION,
5672 .doit = nl80211_del_station,
5673 .policy = nl80211_policy,
5674 .flags = GENL_ADMIN_PERM,
5675 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5676 NL80211_FLAG_NEED_RTNL,
5679 .cmd = NL80211_CMD_GET_MPATH,
5680 .doit = nl80211_get_mpath,
5681 .dumpit = nl80211_dump_mpath,
5682 .policy = nl80211_policy,
5683 .flags = GENL_ADMIN_PERM,
5684 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5685 NL80211_FLAG_NEED_RTNL,
5688 .cmd = NL80211_CMD_SET_MPATH,
5689 .doit = nl80211_set_mpath,
5690 .policy = nl80211_policy,
5691 .flags = GENL_ADMIN_PERM,
5692 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5693 NL80211_FLAG_NEED_RTNL,
5696 .cmd = NL80211_CMD_NEW_MPATH,
5697 .doit = nl80211_new_mpath,
5698 .policy = nl80211_policy,
5699 .flags = GENL_ADMIN_PERM,
5700 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5701 NL80211_FLAG_NEED_RTNL,
5704 .cmd = NL80211_CMD_DEL_MPATH,
5705 .doit = nl80211_del_mpath,
5706 .policy = nl80211_policy,
5707 .flags = GENL_ADMIN_PERM,
5708 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5709 NL80211_FLAG_NEED_RTNL,
5712 .cmd = NL80211_CMD_SET_BSS,
5713 .doit = nl80211_set_bss,
5714 .policy = nl80211_policy,
5715 .flags = GENL_ADMIN_PERM,
5716 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5717 NL80211_FLAG_NEED_RTNL,
5720 .cmd = NL80211_CMD_GET_REG,
5721 .doit = nl80211_get_reg,
5722 .policy = nl80211_policy,
5723 /* can be retrieved by unprivileged users */
5726 .cmd = NL80211_CMD_SET_REG,
5727 .doit = nl80211_set_reg,
5728 .policy = nl80211_policy,
5729 .flags = GENL_ADMIN_PERM,
5732 .cmd = NL80211_CMD_REQ_SET_REG,
5733 .doit = nl80211_req_set_reg,
5734 .policy = nl80211_policy,
5735 .flags = GENL_ADMIN_PERM,
5738 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5739 .doit = nl80211_get_mesh_config,
5740 .policy = nl80211_policy,
5741 /* can be retrieved by unprivileged users */
5742 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5743 NL80211_FLAG_NEED_RTNL,
5746 .cmd = NL80211_CMD_SET_MESH_CONFIG,
5747 .doit = nl80211_update_mesh_config,
5748 .policy = nl80211_policy,
5749 .flags = GENL_ADMIN_PERM,
5750 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5751 NL80211_FLAG_NEED_RTNL,
5754 .cmd = NL80211_CMD_TRIGGER_SCAN,
5755 .doit = nl80211_trigger_scan,
5756 .policy = nl80211_policy,
5757 .flags = GENL_ADMIN_PERM,
5758 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5759 NL80211_FLAG_NEED_RTNL,
5762 .cmd = NL80211_CMD_GET_SCAN,
5763 .policy = nl80211_policy,
5764 .dumpit = nl80211_dump_scan,
5767 .cmd = NL80211_CMD_START_SCHED_SCAN,
5768 .doit = nl80211_start_sched_scan,
5769 .policy = nl80211_policy,
5770 .flags = GENL_ADMIN_PERM,
5771 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5772 NL80211_FLAG_NEED_RTNL,
5775 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
5776 .doit = nl80211_stop_sched_scan,
5777 .policy = nl80211_policy,
5778 .flags = GENL_ADMIN_PERM,
5779 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5780 NL80211_FLAG_NEED_RTNL,
5783 .cmd = NL80211_CMD_AUTHENTICATE,
5784 .doit = nl80211_authenticate,
5785 .policy = nl80211_policy,
5786 .flags = GENL_ADMIN_PERM,
5787 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5788 NL80211_FLAG_NEED_RTNL,
5791 .cmd = NL80211_CMD_ASSOCIATE,
5792 .doit = nl80211_associate,
5793 .policy = nl80211_policy,
5794 .flags = GENL_ADMIN_PERM,
5795 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5796 NL80211_FLAG_NEED_RTNL,
5799 .cmd = NL80211_CMD_DEAUTHENTICATE,
5800 .doit = nl80211_deauthenticate,
5801 .policy = nl80211_policy,
5802 .flags = GENL_ADMIN_PERM,
5803 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5804 NL80211_FLAG_NEED_RTNL,
5807 .cmd = NL80211_CMD_DISASSOCIATE,
5808 .doit = nl80211_disassociate,
5809 .policy = nl80211_policy,
5810 .flags = GENL_ADMIN_PERM,
5811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5812 NL80211_FLAG_NEED_RTNL,
5815 .cmd = NL80211_CMD_JOIN_IBSS,
5816 .doit = nl80211_join_ibss,
5817 .policy = nl80211_policy,
5818 .flags = GENL_ADMIN_PERM,
5819 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5820 NL80211_FLAG_NEED_RTNL,
5823 .cmd = NL80211_CMD_LEAVE_IBSS,
5824 .doit = nl80211_leave_ibss,
5825 .policy = nl80211_policy,
5826 .flags = GENL_ADMIN_PERM,
5827 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5828 NL80211_FLAG_NEED_RTNL,
5830 #ifdef CONFIG_NL80211_TESTMODE
5832 .cmd = NL80211_CMD_TESTMODE,
5833 .doit = nl80211_testmode_do,
5834 .dumpit = nl80211_testmode_dump,
5835 .policy = nl80211_policy,
5836 .flags = GENL_ADMIN_PERM,
5837 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5838 NL80211_FLAG_NEED_RTNL,
5842 .cmd = NL80211_CMD_CONNECT,
5843 .doit = nl80211_connect,
5844 .policy = nl80211_policy,
5845 .flags = GENL_ADMIN_PERM,
5846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5847 NL80211_FLAG_NEED_RTNL,
5850 .cmd = NL80211_CMD_DISCONNECT,
5851 .doit = nl80211_disconnect,
5852 .policy = nl80211_policy,
5853 .flags = GENL_ADMIN_PERM,
5854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5855 NL80211_FLAG_NEED_RTNL,
5858 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5859 .doit = nl80211_wiphy_netns,
5860 .policy = nl80211_policy,
5861 .flags = GENL_ADMIN_PERM,
5862 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5863 NL80211_FLAG_NEED_RTNL,
5866 .cmd = NL80211_CMD_GET_SURVEY,
5867 .policy = nl80211_policy,
5868 .dumpit = nl80211_dump_survey,
5871 .cmd = NL80211_CMD_SET_PMKSA,
5872 .doit = nl80211_setdel_pmksa,
5873 .policy = nl80211_policy,
5874 .flags = GENL_ADMIN_PERM,
5875 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5876 NL80211_FLAG_NEED_RTNL,
5879 .cmd = NL80211_CMD_DEL_PMKSA,
5880 .doit = nl80211_setdel_pmksa,
5881 .policy = nl80211_policy,
5882 .flags = GENL_ADMIN_PERM,
5883 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5884 NL80211_FLAG_NEED_RTNL,
5887 .cmd = NL80211_CMD_FLUSH_PMKSA,
5888 .doit = nl80211_flush_pmksa,
5889 .policy = nl80211_policy,
5890 .flags = GENL_ADMIN_PERM,
5891 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5892 NL80211_FLAG_NEED_RTNL,
5895 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5896 .doit = nl80211_remain_on_channel,
5897 .policy = nl80211_policy,
5898 .flags = GENL_ADMIN_PERM,
5899 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5900 NL80211_FLAG_NEED_RTNL,
5903 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5904 .doit = nl80211_cancel_remain_on_channel,
5905 .policy = nl80211_policy,
5906 .flags = GENL_ADMIN_PERM,
5907 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5908 NL80211_FLAG_NEED_RTNL,
5911 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5912 .doit = nl80211_set_tx_bitrate_mask,
5913 .policy = nl80211_policy,
5914 .flags = GENL_ADMIN_PERM,
5915 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5916 NL80211_FLAG_NEED_RTNL,
5919 .cmd = NL80211_CMD_REGISTER_FRAME,
5920 .doit = nl80211_register_mgmt,
5921 .policy = nl80211_policy,
5922 .flags = GENL_ADMIN_PERM,
5923 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5924 NL80211_FLAG_NEED_RTNL,
5927 .cmd = NL80211_CMD_FRAME,
5928 .doit = nl80211_tx_mgmt,
5929 .policy = nl80211_policy,
5930 .flags = GENL_ADMIN_PERM,
5931 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5932 NL80211_FLAG_NEED_RTNL,
5935 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
5936 .doit = nl80211_tx_mgmt_cancel_wait,
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_SET_POWER_SAVE,
5944 .doit = nl80211_set_power_save,
5945 .policy = nl80211_policy,
5946 .flags = GENL_ADMIN_PERM,
5947 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5948 NL80211_FLAG_NEED_RTNL,
5951 .cmd = NL80211_CMD_GET_POWER_SAVE,
5952 .doit = nl80211_get_power_save,
5953 .policy = nl80211_policy,
5954 /* can be retrieved by unprivileged users */
5955 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5956 NL80211_FLAG_NEED_RTNL,
5959 .cmd = NL80211_CMD_SET_CQM,
5960 .doit = nl80211_set_cqm,
5961 .policy = nl80211_policy,
5962 .flags = GENL_ADMIN_PERM,
5963 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5964 NL80211_FLAG_NEED_RTNL,
5967 .cmd = NL80211_CMD_SET_CHANNEL,
5968 .doit = nl80211_set_channel,
5969 .policy = nl80211_policy,
5970 .flags = GENL_ADMIN_PERM,
5971 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5972 NL80211_FLAG_NEED_RTNL,
5975 .cmd = NL80211_CMD_SET_WDS_PEER,
5976 .doit = nl80211_set_wds_peer,
5977 .policy = nl80211_policy,
5978 .flags = GENL_ADMIN_PERM,
5979 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5980 NL80211_FLAG_NEED_RTNL,
5983 .cmd = NL80211_CMD_JOIN_MESH,
5984 .doit = nl80211_join_mesh,
5985 .policy = nl80211_policy,
5986 .flags = GENL_ADMIN_PERM,
5987 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5988 NL80211_FLAG_NEED_RTNL,
5991 .cmd = NL80211_CMD_LEAVE_MESH,
5992 .doit = nl80211_leave_mesh,
5993 .policy = nl80211_policy,
5994 .flags = GENL_ADMIN_PERM,
5995 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5996 NL80211_FLAG_NEED_RTNL,
5999 .cmd = NL80211_CMD_GET_WOWLAN,
6000 .doit = nl80211_get_wowlan,
6001 .policy = nl80211_policy,
6002 /* can be retrieved by unprivileged users */
6003 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6004 NL80211_FLAG_NEED_RTNL,
6007 .cmd = NL80211_CMD_SET_WOWLAN,
6008 .doit = nl80211_set_wowlan,
6009 .policy = nl80211_policy,
6010 .flags = GENL_ADMIN_PERM,
6011 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6012 NL80211_FLAG_NEED_RTNL,
6015 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6016 .doit = nl80211_set_rekey_data,
6017 .policy = nl80211_policy,
6018 .flags = GENL_ADMIN_PERM,
6019 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6020 NL80211_FLAG_NEED_RTNL,
6024 static struct genl_multicast_group nl80211_mlme_mcgrp = {
6028 /* multicast groups */
6029 static struct genl_multicast_group nl80211_config_mcgrp = {
6032 static struct genl_multicast_group nl80211_scan_mcgrp = {
6035 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6036 .name = "regulatory",
6039 /* notification functions */
6041 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6043 struct sk_buff *msg;
6045 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6049 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6054 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6055 nl80211_config_mcgrp.id, GFP_KERNEL);
6058 static int nl80211_add_scan_req(struct sk_buff *msg,
6059 struct cfg80211_registered_device *rdev)
6061 struct cfg80211_scan_request *req = rdev->scan_req;
6062 struct nlattr *nest;
6065 ASSERT_RDEV_LOCK(rdev);
6070 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6072 goto nla_put_failure;
6073 for (i = 0; i < req->n_ssids; i++)
6074 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6075 nla_nest_end(msg, nest);
6077 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6079 goto nla_put_failure;
6080 for (i = 0; i < req->n_channels; i++)
6081 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6082 nla_nest_end(msg, nest);
6085 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6092 static int nl80211_send_scan_msg(struct sk_buff *msg,
6093 struct cfg80211_registered_device *rdev,
6094 struct net_device *netdev,
6095 u32 pid, u32 seq, int flags,
6100 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6104 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6105 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6107 /* ignore errors and send incomplete event anyway */
6108 nl80211_add_scan_req(msg, rdev);
6110 return genlmsg_end(msg, hdr);
6113 genlmsg_cancel(msg, hdr);
6118 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6119 struct cfg80211_registered_device *rdev,
6120 struct net_device *netdev,
6121 u32 pid, u32 seq, int flags, u32 cmd)
6125 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6129 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6130 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6132 return genlmsg_end(msg, hdr);
6135 genlmsg_cancel(msg, hdr);
6139 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6140 struct net_device *netdev)
6142 struct sk_buff *msg;
6144 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6148 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6149 NL80211_CMD_TRIGGER_SCAN) < 0) {
6154 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6155 nl80211_scan_mcgrp.id, GFP_KERNEL);
6158 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6159 struct net_device *netdev)
6161 struct sk_buff *msg;
6163 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6167 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6168 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
6173 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6174 nl80211_scan_mcgrp.id, GFP_KERNEL);
6177 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6178 struct net_device *netdev)
6180 struct sk_buff *msg;
6182 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6186 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6187 NL80211_CMD_SCAN_ABORTED) < 0) {
6192 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6193 nl80211_scan_mcgrp.id, GFP_KERNEL);
6196 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6197 struct net_device *netdev)
6199 struct sk_buff *msg;
6201 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6205 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6206 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6211 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6212 nl80211_scan_mcgrp.id, GFP_KERNEL);
6215 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6216 struct net_device *netdev, u32 cmd)
6218 struct sk_buff *msg;
6220 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6224 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6229 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6230 nl80211_scan_mcgrp.id, GFP_KERNEL);
6234 * This can happen on global regulatory changes or device specific settings
6235 * based on custom world regulatory domains.
6237 void nl80211_send_reg_change_event(struct regulatory_request *request)
6239 struct sk_buff *msg;
6242 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6246 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6252 /* Userspace can always count this one always being set */
6253 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6255 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6256 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6257 NL80211_REGDOM_TYPE_WORLD);
6258 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6259 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6260 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6261 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6263 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6264 NL80211_REGDOM_TYPE_INTERSECTION);
6266 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6267 NL80211_REGDOM_TYPE_COUNTRY);
6268 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6271 if (wiphy_idx_valid(request->wiphy_idx))
6272 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6274 if (genlmsg_end(msg, hdr) < 0) {
6280 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6287 genlmsg_cancel(msg, hdr);
6291 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6292 struct net_device *netdev,
6293 const u8 *buf, size_t len,
6294 enum nl80211_commands cmd, gfp_t gfp)
6296 struct sk_buff *msg;
6299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6303 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6309 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6310 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6311 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6313 if (genlmsg_end(msg, hdr) < 0) {
6318 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6319 nl80211_mlme_mcgrp.id, gfp);
6323 genlmsg_cancel(msg, hdr);
6327 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
6328 struct net_device *netdev, const u8 *buf,
6329 size_t len, gfp_t gfp)
6331 nl80211_send_mlme_event(rdev, netdev, buf, len,
6332 NL80211_CMD_AUTHENTICATE, gfp);
6335 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6336 struct net_device *netdev, const u8 *buf,
6337 size_t len, gfp_t gfp)
6339 nl80211_send_mlme_event(rdev, netdev, buf, len,
6340 NL80211_CMD_ASSOCIATE, gfp);
6343 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
6344 struct net_device *netdev, const u8 *buf,
6345 size_t len, gfp_t gfp)
6347 nl80211_send_mlme_event(rdev, netdev, buf, len,
6348 NL80211_CMD_DEAUTHENTICATE, gfp);
6351 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6352 struct net_device *netdev, const u8 *buf,
6353 size_t len, gfp_t gfp)
6355 nl80211_send_mlme_event(rdev, netdev, buf, len,
6356 NL80211_CMD_DISASSOCIATE, gfp);
6359 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6360 struct net_device *netdev, const u8 *buf,
6361 size_t len, gfp_t gfp)
6363 nl80211_send_mlme_event(rdev, netdev, buf, len,
6364 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6367 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6368 struct net_device *netdev, const u8 *buf,
6369 size_t len, gfp_t gfp)
6371 nl80211_send_mlme_event(rdev, netdev, buf, len,
6372 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6375 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6376 struct net_device *netdev, int cmd,
6377 const u8 *addr, gfp_t gfp)
6379 struct sk_buff *msg;
6382 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6386 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6392 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6393 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6394 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6395 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6397 if (genlmsg_end(msg, hdr) < 0) {
6402 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6403 nl80211_mlme_mcgrp.id, gfp);
6407 genlmsg_cancel(msg, hdr);
6411 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
6412 struct net_device *netdev, const u8 *addr,
6415 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
6419 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
6420 struct net_device *netdev, const u8 *addr,
6423 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6427 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6428 struct net_device *netdev, const u8 *bssid,
6429 const u8 *req_ie, size_t req_ie_len,
6430 const u8 *resp_ie, size_t resp_ie_len,
6431 u16 status, gfp_t gfp)
6433 struct sk_buff *msg;
6436 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6440 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6446 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6447 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6449 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6450 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6452 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6454 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6456 if (genlmsg_end(msg, hdr) < 0) {
6461 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6462 nl80211_mlme_mcgrp.id, gfp);
6466 genlmsg_cancel(msg, hdr);
6471 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6472 struct net_device *netdev, const u8 *bssid,
6473 const u8 *req_ie, size_t req_ie_len,
6474 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6476 struct sk_buff *msg;
6479 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6483 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6489 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6490 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6491 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6493 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6495 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6497 if (genlmsg_end(msg, hdr) < 0) {
6502 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6503 nl80211_mlme_mcgrp.id, gfp);
6507 genlmsg_cancel(msg, hdr);
6512 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6513 struct net_device *netdev, u16 reason,
6514 const u8 *ie, size_t ie_len, bool from_ap)
6516 struct sk_buff *msg;
6519 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6523 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6529 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6530 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6531 if (from_ap && reason)
6532 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6534 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6536 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6538 if (genlmsg_end(msg, hdr) < 0) {
6543 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6544 nl80211_mlme_mcgrp.id, GFP_KERNEL);
6548 genlmsg_cancel(msg, hdr);
6553 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6554 struct net_device *netdev, const u8 *bssid,
6557 struct sk_buff *msg;
6560 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6564 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6570 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6571 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6572 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6574 if (genlmsg_end(msg, hdr) < 0) {
6579 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6580 nl80211_mlme_mcgrp.id, gfp);
6584 genlmsg_cancel(msg, hdr);
6588 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6589 struct net_device *netdev,
6590 const u8 *macaddr, const u8* ie, u8 ie_len,
6593 struct sk_buff *msg;
6596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6600 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6606 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6607 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6608 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6610 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6612 if (genlmsg_end(msg, hdr) < 0) {
6617 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6618 nl80211_mlme_mcgrp.id, gfp);
6622 genlmsg_cancel(msg, hdr);
6626 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6627 struct net_device *netdev, const u8 *addr,
6628 enum nl80211_key_type key_type, int key_id,
6629 const u8 *tsc, gfp_t gfp)
6631 struct sk_buff *msg;
6634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6638 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
6644 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6645 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6647 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6648 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
6650 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
6652 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
6654 if (genlmsg_end(msg, hdr) < 0) {
6659 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6660 nl80211_mlme_mcgrp.id, gfp);
6664 genlmsg_cancel(msg, hdr);
6668 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
6669 struct ieee80211_channel *channel_before,
6670 struct ieee80211_channel *channel_after)
6672 struct sk_buff *msg;
6674 struct nlattr *nl_freq;
6676 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6680 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
6687 * Since we are applying the beacon hint to a wiphy we know its
6688 * wiphy_idx is valid
6690 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
6693 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
6695 goto nla_put_failure;
6696 if (nl80211_msg_put_channel(msg, channel_before))
6697 goto nla_put_failure;
6698 nla_nest_end(msg, nl_freq);
6701 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
6703 goto nla_put_failure;
6704 if (nl80211_msg_put_channel(msg, channel_after))
6705 goto nla_put_failure;
6706 nla_nest_end(msg, nl_freq);
6708 if (genlmsg_end(msg, hdr) < 0) {
6714 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6721 genlmsg_cancel(msg, hdr);
6725 static void nl80211_send_remain_on_chan_event(
6726 int cmd, struct cfg80211_registered_device *rdev,
6727 struct net_device *netdev, u64 cookie,
6728 struct ieee80211_channel *chan,
6729 enum nl80211_channel_type channel_type,
6730 unsigned int duration, gfp_t gfp)
6732 struct sk_buff *msg;
6735 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6739 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6745 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6746 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6747 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
6748 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
6749 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6751 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
6752 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6754 if (genlmsg_end(msg, hdr) < 0) {
6759 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6760 nl80211_mlme_mcgrp.id, gfp);
6764 genlmsg_cancel(msg, hdr);
6768 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
6769 struct net_device *netdev, u64 cookie,
6770 struct ieee80211_channel *chan,
6771 enum nl80211_channel_type channel_type,
6772 unsigned int duration, gfp_t gfp)
6774 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
6775 rdev, netdev, cookie, chan,
6776 channel_type, duration, gfp);
6779 void nl80211_send_remain_on_channel_cancel(
6780 struct cfg80211_registered_device *rdev, struct net_device *netdev,
6781 u64 cookie, struct ieee80211_channel *chan,
6782 enum nl80211_channel_type channel_type, gfp_t gfp)
6784 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6785 rdev, netdev, cookie, chan,
6786 channel_type, 0, gfp);
6789 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
6790 struct net_device *dev, const u8 *mac_addr,
6791 struct station_info *sinfo, gfp_t gfp)
6793 struct sk_buff *msg;
6795 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6799 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
6804 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6805 nl80211_mlme_mcgrp.id, gfp);
6808 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
6809 struct net_device *dev, const u8 *mac_addr,
6812 struct sk_buff *msg;
6815 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6819 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
6825 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
6826 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
6828 if (genlmsg_end(msg, hdr) < 0) {
6833 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6834 nl80211_mlme_mcgrp.id, gfp);
6838 genlmsg_cancel(msg, hdr);
6842 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
6843 struct net_device *netdev, u32 nlpid,
6844 int freq, const u8 *buf, size_t len, gfp_t gfp)
6846 struct sk_buff *msg;
6850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6854 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
6860 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6861 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6862 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6863 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6865 err = genlmsg_end(msg, hdr);
6871 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
6877 genlmsg_cancel(msg, hdr);
6882 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
6883 struct net_device *netdev, u64 cookie,
6884 const u8 *buf, size_t len, bool ack,
6887 struct sk_buff *msg;
6890 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6894 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
6900 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6901 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6902 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6903 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6905 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
6907 if (genlmsg_end(msg, hdr) < 0) {
6912 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
6916 genlmsg_cancel(msg, hdr);
6921 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
6922 struct net_device *netdev,
6923 enum nl80211_cqm_rssi_threshold_event rssi_event,
6926 struct sk_buff *msg;
6927 struct nlattr *pinfoattr;
6930 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6934 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6940 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6941 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6943 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6945 goto nla_put_failure;
6947 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
6950 nla_nest_end(msg, pinfoattr);
6952 if (genlmsg_end(msg, hdr) < 0) {
6957 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6958 nl80211_mlme_mcgrp.id, gfp);
6962 genlmsg_cancel(msg, hdr);
6966 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
6967 struct net_device *netdev, const u8 *bssid,
6968 const u8 *replay_ctr, gfp_t gfp)
6970 struct sk_buff *msg;
6971 struct nlattr *rekey_attr;
6974 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6978 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
6984 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6985 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6986 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6988 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
6990 goto nla_put_failure;
6992 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
6993 NL80211_REPLAY_CTR_LEN, replay_ctr);
6995 nla_nest_end(msg, rekey_attr);
6997 if (genlmsg_end(msg, hdr) < 0) {
7002 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7003 nl80211_mlme_mcgrp.id, gfp);
7007 genlmsg_cancel(msg, hdr);
7012 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7013 struct net_device *netdev, const u8 *peer,
7014 u32 num_packets, gfp_t gfp)
7016 struct sk_buff *msg;
7017 struct nlattr *pinfoattr;
7020 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7024 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7030 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7031 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7032 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7034 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7036 goto nla_put_failure;
7038 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7040 nla_nest_end(msg, pinfoattr);
7042 if (genlmsg_end(msg, hdr) < 0) {
7047 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7048 nl80211_mlme_mcgrp.id, gfp);
7052 genlmsg_cancel(msg, hdr);
7056 static int nl80211_netlink_notify(struct notifier_block * nb,
7057 unsigned long state,
7060 struct netlink_notify *notify = _notify;
7061 struct cfg80211_registered_device *rdev;
7062 struct wireless_dev *wdev;
7064 if (state != NETLINK_URELEASE)
7069 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7070 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
7071 cfg80211_mlme_unregister_socket(wdev, notify->pid);
7078 static struct notifier_block nl80211_netlink_notifier = {
7079 .notifier_call = nl80211_netlink_notify,
7082 /* initialisation/exit functions */
7084 int nl80211_init(void)
7088 err = genl_register_family_with_ops(&nl80211_fam,
7089 nl80211_ops, ARRAY_SIZE(nl80211_ops));
7093 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7097 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7101 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7105 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7109 #ifdef CONFIG_NL80211_TESTMODE
7110 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7115 err = netlink_register_notifier(&nl80211_netlink_notifier);
7121 genl_unregister_family(&nl80211_fam);
7125 void nl80211_exit(void)
7127 netlink_unregister_notifier(&nl80211_netlink_notifier);
7128 genl_unregister_family(&nl80211_fam);