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 },
181 /* policy for the key attributes */
182 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
183 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
184 [NL80211_KEY_IDX] = { .type = NLA_U8 },
185 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
186 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
187 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
188 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
189 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
190 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
193 /* policy for the key default flags */
194 static const struct nla_policy
195 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
196 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
197 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
200 /* policy for WoWLAN attributes */
201 static const struct nla_policy
202 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
203 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
204 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
205 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
206 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
209 /* ifidx get helper */
210 static int nl80211_get_ifidx(struct netlink_callback *cb)
214 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
215 nl80211_fam.attrbuf, nl80211_fam.maxattr,
220 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
223 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
229 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
230 struct netlink_callback *cb,
231 struct cfg80211_registered_device **rdev,
232 struct net_device **dev)
234 int ifidx = cb->args[0];
238 ifidx = nl80211_get_ifidx(cb);
246 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
252 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
254 err = PTR_ERR(*rdev);
264 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
266 cfg80211_unlock_rdev(rdev);
271 static bool is_valid_ie_attr(const struct nlattr *attr)
279 pos = nla_data(attr);
300 /* message building helper */
301 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
304 /* since there is no private header just add the generic one */
305 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
308 static int nl80211_msg_put_channel(struct sk_buff *msg,
309 struct ieee80211_channel *chan)
311 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
314 if (chan->flags & IEEE80211_CHAN_DISABLED)
315 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
316 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
317 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
318 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
319 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
320 if (chan->flags & IEEE80211_CHAN_RADAR)
321 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
323 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
324 DBM_TO_MBM(chan->max_power));
332 /* netlink command implementations */
339 bool def_uni, def_multi;
342 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
344 struct nlattr *tb[NL80211_KEY_MAX + 1];
345 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
350 k->def = !!tb[NL80211_KEY_DEFAULT];
351 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
360 if (tb[NL80211_KEY_IDX])
361 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
363 if (tb[NL80211_KEY_DATA]) {
364 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
365 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
368 if (tb[NL80211_KEY_SEQ]) {
369 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
370 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
373 if (tb[NL80211_KEY_CIPHER])
374 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
376 if (tb[NL80211_KEY_TYPE]) {
377 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
378 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
382 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
383 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
384 int err = nla_parse_nested(kdt,
385 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
386 tb[NL80211_KEY_DEFAULT_TYPES],
387 nl80211_key_default_policy);
391 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
392 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
398 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
400 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
401 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
402 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
405 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
406 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
407 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
410 if (info->attrs[NL80211_ATTR_KEY_IDX])
411 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
413 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
414 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
416 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
417 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
426 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
427 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
428 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
432 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
433 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
434 int err = nla_parse_nested(
435 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
436 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
437 nl80211_key_default_policy);
441 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
442 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
448 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
452 memset(k, 0, sizeof(*k));
456 if (info->attrs[NL80211_ATTR_KEY])
457 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
459 err = nl80211_parse_key_old(info, k);
464 if (k->def && k->defmgmt)
468 if (k->def_uni || !k->def_multi)
474 if (k->idx < 4 || k->idx > 5)
477 if (k->idx < 0 || k->idx > 3)
480 if (k->idx < 0 || k->idx > 5)
488 static struct cfg80211_cached_keys *
489 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
492 struct key_parse parse;
494 struct cfg80211_cached_keys *result;
495 int rem, err, def = 0;
497 result = kzalloc(sizeof(*result), GFP_KERNEL);
499 return ERR_PTR(-ENOMEM);
502 result->defmgmt = -1;
504 nla_for_each_nested(key, keys, rem) {
505 memset(&parse, 0, sizeof(parse));
508 err = nl80211_parse_key_new(key, &parse);
514 if (parse.idx < 0 || parse.idx > 4)
520 result->def = parse.idx;
521 if (!parse.def_uni || !parse.def_multi)
523 } else if (parse.defmgmt)
525 err = cfg80211_validate_key_settings(rdev, &parse.p,
526 parse.idx, false, NULL);
529 result->params[parse.idx].cipher = parse.p.cipher;
530 result->params[parse.idx].key_len = parse.p.key_len;
531 result->params[parse.idx].key = result->data[parse.idx];
532 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
541 static int nl80211_key_allowed(struct wireless_dev *wdev)
543 ASSERT_WDEV_LOCK(wdev);
545 switch (wdev->iftype) {
546 case NL80211_IFTYPE_AP:
547 case NL80211_IFTYPE_AP_VLAN:
548 case NL80211_IFTYPE_P2P_GO:
549 case NL80211_IFTYPE_MESH_POINT:
551 case NL80211_IFTYPE_ADHOC:
552 if (!wdev->current_bss)
555 case NL80211_IFTYPE_STATION:
556 case NL80211_IFTYPE_P2P_CLIENT:
557 if (wdev->sme_state != CFG80211_SME_CONNECTED)
567 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
569 struct nlattr *nl_modes = nla_nest_start(msg, attr);
573 goto nla_put_failure;
578 NLA_PUT_FLAG(msg, i);
583 nla_nest_end(msg, nl_modes);
590 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
593 struct nlattr *nl_combis;
596 nl_combis = nla_nest_start(msg,
597 NL80211_ATTR_INTERFACE_COMBINATIONS);
599 goto nla_put_failure;
601 for (i = 0; i < wiphy->n_iface_combinations; i++) {
602 const struct ieee80211_iface_combination *c;
603 struct nlattr *nl_combi, *nl_limits;
605 c = &wiphy->iface_combinations[i];
607 nl_combi = nla_nest_start(msg, i + 1);
609 goto nla_put_failure;
611 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
613 goto nla_put_failure;
615 for (j = 0; j < c->n_limits; j++) {
616 struct nlattr *nl_limit;
618 nl_limit = nla_nest_start(msg, j + 1);
620 goto nla_put_failure;
621 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
623 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
625 goto nla_put_failure;
626 nla_nest_end(msg, nl_limit);
629 nla_nest_end(msg, nl_limits);
631 if (c->beacon_int_infra_match)
633 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
634 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
635 c->num_different_channels);
636 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
639 nla_nest_end(msg, nl_combi);
642 nla_nest_end(msg, nl_combis);
649 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
650 struct cfg80211_registered_device *dev)
653 struct nlattr *nl_bands, *nl_band;
654 struct nlattr *nl_freqs, *nl_freq;
655 struct nlattr *nl_rates, *nl_rate;
656 struct nlattr *nl_cmds;
657 enum ieee80211_band band;
658 struct ieee80211_channel *chan;
659 struct ieee80211_rate *rate;
661 const struct ieee80211_txrx_stypes *mgmt_stypes =
662 dev->wiphy.mgmt_stypes;
664 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
668 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
669 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
671 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
672 cfg80211_rdev_list_generation);
674 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
675 dev->wiphy.retry_short);
676 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
677 dev->wiphy.retry_long);
678 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
679 dev->wiphy.frag_threshold);
680 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
681 dev->wiphy.rts_threshold);
682 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
683 dev->wiphy.coverage_class);
684 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
685 dev->wiphy.max_scan_ssids);
686 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
687 dev->wiphy.max_scan_ie_len);
689 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
690 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
691 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
692 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
694 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
695 sizeof(u32) * dev->wiphy.n_cipher_suites,
696 dev->wiphy.cipher_suites);
698 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
699 dev->wiphy.max_num_pmkids);
701 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
702 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
704 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
705 dev->wiphy.available_antennas_tx);
706 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
707 dev->wiphy.available_antennas_rx);
709 if ((dev->wiphy.available_antennas_tx ||
710 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
711 u32 tx_ant = 0, rx_ant = 0;
713 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
715 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
716 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
720 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
721 dev->wiphy.interface_modes))
722 goto nla_put_failure;
724 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
726 goto nla_put_failure;
728 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
729 if (!dev->wiphy.bands[band])
732 nl_band = nla_nest_start(msg, band);
734 goto nla_put_failure;
737 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
738 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
739 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
740 &dev->wiphy.bands[band]->ht_cap.mcs);
741 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
742 dev->wiphy.bands[band]->ht_cap.cap);
743 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
744 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
745 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
746 dev->wiphy.bands[band]->ht_cap.ampdu_density);
749 /* add frequencies */
750 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
752 goto nla_put_failure;
754 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
755 nl_freq = nla_nest_start(msg, i);
757 goto nla_put_failure;
759 chan = &dev->wiphy.bands[band]->channels[i];
761 if (nl80211_msg_put_channel(msg, chan))
762 goto nla_put_failure;
764 nla_nest_end(msg, nl_freq);
767 nla_nest_end(msg, nl_freqs);
770 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
772 goto nla_put_failure;
774 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
775 nl_rate = nla_nest_start(msg, i);
777 goto nla_put_failure;
779 rate = &dev->wiphy.bands[band]->bitrates[i];
780 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
782 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
784 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
786 nla_nest_end(msg, nl_rate);
789 nla_nest_end(msg, nl_rates);
791 nla_nest_end(msg, nl_band);
793 nla_nest_end(msg, nl_bands);
795 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
797 goto nla_put_failure;
802 if (dev->ops->op) { \
804 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
808 CMD(add_virtual_intf, NEW_INTERFACE);
809 CMD(change_virtual_intf, SET_INTERFACE);
810 CMD(add_key, NEW_KEY);
811 CMD(add_beacon, NEW_BEACON);
812 CMD(add_station, NEW_STATION);
813 CMD(add_mpath, NEW_MPATH);
814 CMD(update_mesh_config, SET_MESH_CONFIG);
815 CMD(change_bss, SET_BSS);
816 CMD(auth, AUTHENTICATE);
817 CMD(assoc, ASSOCIATE);
818 CMD(deauth, DEAUTHENTICATE);
819 CMD(disassoc, DISASSOCIATE);
820 CMD(join_ibss, JOIN_IBSS);
821 CMD(join_mesh, JOIN_MESH);
822 CMD(set_pmksa, SET_PMKSA);
823 CMD(del_pmksa, DEL_PMKSA);
824 CMD(flush_pmksa, FLUSH_PMKSA);
825 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
826 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
828 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
829 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
831 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
833 CMD(set_channel, SET_CHANNEL);
834 CMD(set_wds_peer, SET_WDS_PEER);
835 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
836 CMD(sched_scan_start, START_SCHED_SCAN);
840 if (dev->ops->connect || dev->ops->auth) {
842 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
845 if (dev->ops->disconnect || dev->ops->deauth) {
847 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
850 nla_nest_end(msg, nl_cmds);
852 if (dev->ops->remain_on_channel)
853 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
854 dev->wiphy.max_remain_on_channel_duration);
856 /* for now at least assume all drivers have it */
857 if (dev->ops->mgmt_tx)
858 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
862 struct nlattr *nl_ftypes, *nl_ifs;
863 enum nl80211_iftype ift;
865 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
867 goto nla_put_failure;
869 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
870 nl_ftypes = nla_nest_start(msg, ift);
872 goto nla_put_failure;
874 stypes = mgmt_stypes[ift].tx;
877 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
878 (i << 4) | IEEE80211_FTYPE_MGMT);
882 nla_nest_end(msg, nl_ftypes);
885 nla_nest_end(msg, nl_ifs);
887 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
889 goto nla_put_failure;
891 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
892 nl_ftypes = nla_nest_start(msg, ift);
894 goto nla_put_failure;
896 stypes = mgmt_stypes[ift].rx;
899 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
900 (i << 4) | IEEE80211_FTYPE_MGMT);
904 nla_nest_end(msg, nl_ftypes);
906 nla_nest_end(msg, nl_ifs);
909 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
910 struct nlattr *nl_wowlan;
912 nl_wowlan = nla_nest_start(msg,
913 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
915 goto nla_put_failure;
917 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
918 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
919 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
920 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
921 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
922 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
923 if (dev->wiphy.wowlan.n_patterns) {
924 struct nl80211_wowlan_pattern_support pat = {
925 .max_patterns = dev->wiphy.wowlan.n_patterns,
927 dev->wiphy.wowlan.pattern_min_len,
929 dev->wiphy.wowlan.pattern_max_len,
931 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
935 nla_nest_end(msg, nl_wowlan);
938 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
939 dev->wiphy.software_iftypes))
940 goto nla_put_failure;
942 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
943 goto nla_put_failure;
945 return genlmsg_end(msg, hdr);
948 genlmsg_cancel(msg, hdr);
952 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
955 int start = cb->args[0];
956 struct cfg80211_registered_device *dev;
958 mutex_lock(&cfg80211_mutex);
959 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
960 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
964 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
965 cb->nlh->nlmsg_seq, NLM_F_MULTI,
971 mutex_unlock(&cfg80211_mutex);
978 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
981 struct cfg80211_registered_device *dev = info->user_ptr[0];
983 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
987 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
992 return genlmsg_reply(msg, info);
995 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
996 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
997 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
998 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
999 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1000 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1003 static int parse_txq_params(struct nlattr *tb[],
1004 struct ieee80211_txq_params *txq_params)
1006 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1007 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1008 !tb[NL80211_TXQ_ATTR_AIFS])
1011 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1012 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1013 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1014 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1015 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1020 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1023 * You can only set the channel explicitly for AP, mesh
1024 * and WDS type interfaces; all others have their channel
1025 * managed via their respective "establish a connection"
1026 * command (connect, join, ...)
1028 * Monitors are special as they are normally slaved to
1029 * whatever else is going on, so they behave as though
1030 * you tried setting the wiphy channel itself.
1033 wdev->iftype == NL80211_IFTYPE_AP ||
1034 wdev->iftype == NL80211_IFTYPE_WDS ||
1035 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1036 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1037 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1040 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1041 struct wireless_dev *wdev,
1042 struct genl_info *info)
1044 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1048 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1051 if (!nl80211_can_set_dev_channel(wdev))
1054 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1055 channel_type = nla_get_u32(info->attrs[
1056 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1057 if (channel_type != NL80211_CHAN_NO_HT &&
1058 channel_type != NL80211_CHAN_HT20 &&
1059 channel_type != NL80211_CHAN_HT40PLUS &&
1060 channel_type != NL80211_CHAN_HT40MINUS)
1064 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1066 mutex_lock(&rdev->devlist_mtx);
1069 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1072 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1074 mutex_unlock(&rdev->devlist_mtx);
1079 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1082 struct net_device *netdev = info->user_ptr[1];
1084 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1087 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1089 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1090 struct net_device *dev = info->user_ptr[1];
1091 struct wireless_dev *wdev = dev->ieee80211_ptr;
1094 if (!info->attrs[NL80211_ATTR_MAC])
1097 if (netif_running(dev))
1100 if (!rdev->ops->set_wds_peer)
1103 if (wdev->iftype != NL80211_IFTYPE_WDS)
1106 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1107 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1111 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1113 struct cfg80211_registered_device *rdev;
1114 struct net_device *netdev = NULL;
1115 struct wireless_dev *wdev;
1116 int result = 0, rem_txq_params = 0;
1117 struct nlattr *nl_txq_params;
1119 u8 retry_short = 0, retry_long = 0;
1120 u32 frag_threshold = 0, rts_threshold = 0;
1121 u8 coverage_class = 0;
1124 * Try to find the wiphy and netdev. Normally this
1125 * function shouldn't need the netdev, but this is
1126 * done for backward compatibility -- previously
1127 * setting the channel was done per wiphy, but now
1128 * it is per netdev. Previous userland like hostapd
1129 * also passed a netdev to set_wiphy, so that it is
1130 * possible to let that go to the right netdev!
1132 mutex_lock(&cfg80211_mutex);
1134 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1135 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1137 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1138 if (netdev && netdev->ieee80211_ptr) {
1139 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1140 mutex_lock(&rdev->mtx);
1146 rdev = __cfg80211_rdev_from_info(info);
1148 mutex_unlock(&cfg80211_mutex);
1149 return PTR_ERR(rdev);
1155 mutex_lock(&rdev->mtx);
1156 } else if (netif_running(netdev) &&
1157 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1158 wdev = netdev->ieee80211_ptr;
1163 * end workaround code, by now the rdev is available
1164 * and locked, and wdev may or may not be NULL.
1167 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1168 result = cfg80211_dev_rename(
1169 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1171 mutex_unlock(&cfg80211_mutex);
1176 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1177 struct ieee80211_txq_params txq_params;
1178 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1180 if (!rdev->ops->set_txq_params) {
1181 result = -EOPNOTSUPP;
1185 nla_for_each_nested(nl_txq_params,
1186 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1188 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1189 nla_data(nl_txq_params),
1190 nla_len(nl_txq_params),
1192 result = parse_txq_params(tb, &txq_params);
1196 result = rdev->ops->set_txq_params(&rdev->wiphy,
1203 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1204 result = __nl80211_set_channel(rdev, wdev, info);
1209 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1210 enum nl80211_tx_power_setting type;
1213 if (!rdev->ops->set_tx_power) {
1214 result = -EOPNOTSUPP;
1218 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1219 type = nla_get_u32(info->attrs[idx]);
1221 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1222 (type != NL80211_TX_POWER_AUTOMATIC)) {
1227 if (type != NL80211_TX_POWER_AUTOMATIC) {
1228 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1229 mbm = nla_get_u32(info->attrs[idx]);
1232 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1237 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1238 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1240 if ((!rdev->wiphy.available_antennas_tx &&
1241 !rdev->wiphy.available_antennas_rx) ||
1242 !rdev->ops->set_antenna) {
1243 result = -EOPNOTSUPP;
1247 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1248 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1250 /* reject antenna configurations which don't match the
1251 * available antenna masks, except for the "all" mask */
1252 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1253 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1258 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1259 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1261 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1268 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1269 retry_short = nla_get_u8(
1270 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1271 if (retry_short == 0) {
1275 changed |= WIPHY_PARAM_RETRY_SHORT;
1278 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1279 retry_long = nla_get_u8(
1280 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1281 if (retry_long == 0) {
1285 changed |= WIPHY_PARAM_RETRY_LONG;
1288 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1289 frag_threshold = nla_get_u32(
1290 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1291 if (frag_threshold < 256) {
1295 if (frag_threshold != (u32) -1) {
1297 * Fragments (apart from the last one) are required to
1298 * have even length. Make the fragmentation code
1299 * simpler by stripping LSB should someone try to use
1300 * odd threshold value.
1302 frag_threshold &= ~0x1;
1304 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1307 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1308 rts_threshold = nla_get_u32(
1309 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1310 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1313 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1314 coverage_class = nla_get_u8(
1315 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1316 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1320 u8 old_retry_short, old_retry_long;
1321 u32 old_frag_threshold, old_rts_threshold;
1322 u8 old_coverage_class;
1324 if (!rdev->ops->set_wiphy_params) {
1325 result = -EOPNOTSUPP;
1329 old_retry_short = rdev->wiphy.retry_short;
1330 old_retry_long = rdev->wiphy.retry_long;
1331 old_frag_threshold = rdev->wiphy.frag_threshold;
1332 old_rts_threshold = rdev->wiphy.rts_threshold;
1333 old_coverage_class = rdev->wiphy.coverage_class;
1335 if (changed & WIPHY_PARAM_RETRY_SHORT)
1336 rdev->wiphy.retry_short = retry_short;
1337 if (changed & WIPHY_PARAM_RETRY_LONG)
1338 rdev->wiphy.retry_long = retry_long;
1339 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1340 rdev->wiphy.frag_threshold = frag_threshold;
1341 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1342 rdev->wiphy.rts_threshold = rts_threshold;
1343 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1344 rdev->wiphy.coverage_class = coverage_class;
1346 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1348 rdev->wiphy.retry_short = old_retry_short;
1349 rdev->wiphy.retry_long = old_retry_long;
1350 rdev->wiphy.frag_threshold = old_frag_threshold;
1351 rdev->wiphy.rts_threshold = old_rts_threshold;
1352 rdev->wiphy.coverage_class = old_coverage_class;
1357 mutex_unlock(&rdev->mtx);
1364 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1365 struct cfg80211_registered_device *rdev,
1366 struct net_device *dev)
1370 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1374 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1375 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
1376 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
1377 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
1379 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1380 rdev->devlist_generation ^
1381 (cfg80211_rdev_list_generation << 2));
1383 return genlmsg_end(msg, hdr);
1386 genlmsg_cancel(msg, hdr);
1390 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1394 int wp_start = cb->args[0];
1395 int if_start = cb->args[1];
1396 struct cfg80211_registered_device *rdev;
1397 struct wireless_dev *wdev;
1399 mutex_lock(&cfg80211_mutex);
1400 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1401 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1403 if (wp_idx < wp_start) {
1409 mutex_lock(&rdev->devlist_mtx);
1410 list_for_each_entry(wdev, &rdev->netdev_list, list) {
1411 if (if_idx < if_start) {
1415 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1416 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1417 rdev, wdev->netdev) < 0) {
1418 mutex_unlock(&rdev->devlist_mtx);
1423 mutex_unlock(&rdev->devlist_mtx);
1428 mutex_unlock(&cfg80211_mutex);
1430 cb->args[0] = wp_idx;
1431 cb->args[1] = if_idx;
1436 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1438 struct sk_buff *msg;
1439 struct cfg80211_registered_device *dev = info->user_ptr[0];
1440 struct net_device *netdev = info->user_ptr[1];
1442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1446 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1452 return genlmsg_reply(msg, info);
1455 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1456 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1457 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1458 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1459 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1460 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1463 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1465 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1473 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1474 nla, mntr_flags_policy))
1477 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1479 *mntrflags |= (1<<flag);
1484 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1485 struct net_device *netdev, u8 use_4addr,
1486 enum nl80211_iftype iftype)
1489 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1495 case NL80211_IFTYPE_AP_VLAN:
1496 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1499 case NL80211_IFTYPE_STATION:
1500 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1510 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1513 struct vif_params params;
1515 enum nl80211_iftype otype, ntype;
1516 struct net_device *dev = info->user_ptr[1];
1517 u32 _flags, *flags = NULL;
1518 bool change = false;
1520 memset(¶ms, 0, sizeof(params));
1522 otype = ntype = dev->ieee80211_ptr->iftype;
1524 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1525 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1528 if (ntype > NL80211_IFTYPE_MAX)
1532 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1533 struct wireless_dev *wdev = dev->ieee80211_ptr;
1535 if (ntype != NL80211_IFTYPE_MESH_POINT)
1537 if (netif_running(dev))
1541 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1542 IEEE80211_MAX_MESH_ID_LEN);
1543 wdev->mesh_id_up_len =
1544 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1545 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1546 wdev->mesh_id_up_len);
1550 if (info->attrs[NL80211_ATTR_4ADDR]) {
1551 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1553 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1557 params.use_4addr = -1;
1560 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1561 if (ntype != NL80211_IFTYPE_MONITOR)
1563 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1573 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1577 if (!err && params.use_4addr != -1)
1578 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1583 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1586 struct vif_params params;
1587 struct net_device *dev;
1589 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1592 memset(¶ms, 0, sizeof(params));
1594 if (!info->attrs[NL80211_ATTR_IFNAME])
1597 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1598 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1599 if (type > NL80211_IFTYPE_MAX)
1603 if (!rdev->ops->add_virtual_intf ||
1604 !(rdev->wiphy.interface_modes & (1 << type)))
1607 if (info->attrs[NL80211_ATTR_4ADDR]) {
1608 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1609 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1614 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1615 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1617 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
1618 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1619 type, err ? NULL : &flags, ¶ms);
1621 return PTR_ERR(dev);
1623 if (type == NL80211_IFTYPE_MESH_POINT &&
1624 info->attrs[NL80211_ATTR_MESH_ID]) {
1625 struct wireless_dev *wdev = dev->ieee80211_ptr;
1628 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1629 IEEE80211_MAX_MESH_ID_LEN);
1630 wdev->mesh_id_up_len =
1631 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1632 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1633 wdev->mesh_id_up_len);
1640 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1643 struct net_device *dev = info->user_ptr[1];
1645 if (!rdev->ops->del_virtual_intf)
1648 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1651 struct get_key_cookie {
1652 struct sk_buff *msg;
1657 static void get_key_callback(void *c, struct key_params *params)
1660 struct get_key_cookie *cookie = c;
1663 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1664 params->key_len, params->key);
1667 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1668 params->seq_len, params->seq);
1671 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1674 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1676 goto nla_put_failure;
1679 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1680 params->key_len, params->key);
1683 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1684 params->seq_len, params->seq);
1687 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1690 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1692 nla_nest_end(cookie->msg, key);
1699 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1703 struct net_device *dev = info->user_ptr[1];
1705 const u8 *mac_addr = NULL;
1707 struct get_key_cookie cookie = {
1711 struct sk_buff *msg;
1713 if (info->attrs[NL80211_ATTR_KEY_IDX])
1714 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1719 if (info->attrs[NL80211_ATTR_MAC])
1720 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1722 pairwise = !!mac_addr;
1723 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1724 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1725 if (kt >= NUM_NL80211_KEYTYPES)
1727 if (kt != NL80211_KEYTYPE_GROUP &&
1728 kt != NL80211_KEYTYPE_PAIRWISE)
1730 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1733 if (!rdev->ops->get_key)
1736 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1740 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1741 NL80211_CMD_NEW_KEY);
1743 return PTR_ERR(hdr);
1746 cookie.idx = key_idx;
1748 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1749 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1751 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1753 if (pairwise && mac_addr &&
1754 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1757 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1758 mac_addr, &cookie, get_key_callback);
1764 goto nla_put_failure;
1766 genlmsg_end(msg, hdr);
1767 return genlmsg_reply(msg, info);
1776 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1779 struct key_parse key;
1781 struct net_device *dev = info->user_ptr[1];
1783 err = nl80211_parse_key(info, &key);
1790 /* only support setting default key */
1791 if (!key.def && !key.defmgmt)
1794 wdev_lock(dev->ieee80211_ptr);
1797 if (!rdev->ops->set_default_key) {
1802 err = nl80211_key_allowed(dev->ieee80211_ptr);
1806 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1807 key.def_uni, key.def_multi);
1812 #ifdef CONFIG_CFG80211_WEXT
1813 dev->ieee80211_ptr->wext.default_key = key.idx;
1816 if (key.def_uni || !key.def_multi) {
1821 if (!rdev->ops->set_default_mgmt_key) {
1826 err = nl80211_key_allowed(dev->ieee80211_ptr);
1830 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1835 #ifdef CONFIG_CFG80211_WEXT
1836 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1841 wdev_unlock(dev->ieee80211_ptr);
1846 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1848 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1850 struct net_device *dev = info->user_ptr[1];
1851 struct key_parse key;
1852 const u8 *mac_addr = NULL;
1854 err = nl80211_parse_key(info, &key);
1861 if (info->attrs[NL80211_ATTR_MAC])
1862 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1864 if (key.type == -1) {
1866 key.type = NL80211_KEYTYPE_PAIRWISE;
1868 key.type = NL80211_KEYTYPE_GROUP;
1872 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1873 key.type != NL80211_KEYTYPE_GROUP)
1876 if (!rdev->ops->add_key)
1879 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1880 key.type == NL80211_KEYTYPE_PAIRWISE,
1884 wdev_lock(dev->ieee80211_ptr);
1885 err = nl80211_key_allowed(dev->ieee80211_ptr);
1887 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1888 key.type == NL80211_KEYTYPE_PAIRWISE,
1890 wdev_unlock(dev->ieee80211_ptr);
1895 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1899 struct net_device *dev = info->user_ptr[1];
1900 u8 *mac_addr = NULL;
1901 struct key_parse key;
1903 err = nl80211_parse_key(info, &key);
1907 if (info->attrs[NL80211_ATTR_MAC])
1908 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1910 if (key.type == -1) {
1912 key.type = NL80211_KEYTYPE_PAIRWISE;
1914 key.type = NL80211_KEYTYPE_GROUP;
1918 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1919 key.type != NL80211_KEYTYPE_GROUP)
1922 if (!rdev->ops->del_key)
1925 wdev_lock(dev->ieee80211_ptr);
1926 err = nl80211_key_allowed(dev->ieee80211_ptr);
1928 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1929 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1933 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1934 key.type == NL80211_KEYTYPE_PAIRWISE,
1937 #ifdef CONFIG_CFG80211_WEXT
1939 if (key.idx == dev->ieee80211_ptr->wext.default_key)
1940 dev->ieee80211_ptr->wext.default_key = -1;
1941 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1942 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1945 wdev_unlock(dev->ieee80211_ptr);
1950 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1952 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1953 struct beacon_parameters *info);
1954 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1955 struct net_device *dev = info->user_ptr[1];
1956 struct wireless_dev *wdev = dev->ieee80211_ptr;
1957 struct beacon_parameters params;
1958 int haveinfo = 0, err;
1960 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1963 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1964 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1967 memset(¶ms, 0, sizeof(params));
1969 switch (info->genlhdr->cmd) {
1970 case NL80211_CMD_NEW_BEACON:
1971 /* these are required for NEW_BEACON */
1972 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1973 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1974 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1978 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1979 params.dtim_period =
1980 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1982 err = cfg80211_validate_beacon_int(rdev, params.interval);
1986 call = rdev->ops->add_beacon;
1988 case NL80211_CMD_SET_BEACON:
1989 call = rdev->ops->set_beacon;
1999 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2000 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2002 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2006 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2007 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2009 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2016 err = call(&rdev->wiphy, dev, ¶ms);
2017 if (!err && params.interval)
2018 wdev->beacon_interval = params.interval;
2022 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2025 struct net_device *dev = info->user_ptr[1];
2026 struct wireless_dev *wdev = dev->ieee80211_ptr;
2029 if (!rdev->ops->del_beacon)
2032 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2033 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2036 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2038 wdev->beacon_interval = 0;
2042 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2043 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2044 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2045 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2046 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2047 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2050 static int parse_station_flags(struct genl_info *info,
2051 struct station_parameters *params)
2053 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2058 * Try parsing the new attribute first so userspace
2059 * can specify both for older kernels.
2061 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2063 struct nl80211_sta_flag_update *sta_flags;
2065 sta_flags = nla_data(nla);
2066 params->sta_flags_mask = sta_flags->mask;
2067 params->sta_flags_set = sta_flags->set;
2068 if ((params->sta_flags_mask |
2069 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2074 /* if present, parse the old attribute */
2076 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2080 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2081 nla, sta_flags_policy))
2084 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2085 params->sta_flags_mask &= ~1;
2087 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2089 params->sta_flags_set |= (1<<flag);
2094 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2097 struct nlattr *rate;
2100 rate = nla_nest_start(msg, attr);
2102 goto nla_put_failure;
2104 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2105 bitrate = cfg80211_calculate_bitrate(info);
2107 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2109 if (info->flags & RATE_INFO_FLAGS_MCS)
2110 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2111 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2112 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2113 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2114 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2116 nla_nest_end(msg, rate);
2123 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2124 int flags, struct net_device *dev,
2125 const u8 *mac_addr, struct station_info *sinfo)
2128 struct nlattr *sinfoattr, *bss_param;
2130 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2134 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2135 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2137 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2139 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2141 goto nla_put_failure;
2142 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2143 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2144 sinfo->connected_time);
2145 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2146 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2147 sinfo->inactive_time);
2148 if (sinfo->filled & STATION_INFO_RX_BYTES)
2149 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2151 if (sinfo->filled & STATION_INFO_TX_BYTES)
2152 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2154 if (sinfo->filled & STATION_INFO_LLID)
2155 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2157 if (sinfo->filled & STATION_INFO_PLID)
2158 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2160 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2161 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2162 sinfo->plink_state);
2163 if (sinfo->filled & STATION_INFO_SIGNAL)
2164 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2166 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2167 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2169 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2170 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2171 NL80211_STA_INFO_TX_BITRATE))
2172 goto nla_put_failure;
2174 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2175 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2176 NL80211_STA_INFO_RX_BITRATE))
2177 goto nla_put_failure;
2179 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2180 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2182 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2183 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2185 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2186 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2188 if (sinfo->filled & STATION_INFO_TX_FAILED)
2189 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2191 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2192 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2194 goto nla_put_failure;
2196 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2197 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2198 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2199 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2200 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2202 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2203 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2204 sinfo->bss_param.dtim_period);
2205 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2206 sinfo->bss_param.beacon_interval);
2208 nla_nest_end(msg, bss_param);
2210 nla_nest_end(msg, sinfoattr);
2212 return genlmsg_end(msg, hdr);
2215 genlmsg_cancel(msg, hdr);
2219 static int nl80211_dump_station(struct sk_buff *skb,
2220 struct netlink_callback *cb)
2222 struct station_info sinfo;
2223 struct cfg80211_registered_device *dev;
2224 struct net_device *netdev;
2225 u8 mac_addr[ETH_ALEN];
2226 int sta_idx = cb->args[1];
2229 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2233 if (!dev->ops->dump_station) {
2239 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2246 if (nl80211_send_station(skb,
2247 NETLINK_CB(cb->skb).pid,
2248 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2258 cb->args[1] = sta_idx;
2261 nl80211_finish_netdev_dump(dev);
2266 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2269 struct net_device *dev = info->user_ptr[1];
2270 struct station_info sinfo;
2271 struct sk_buff *msg;
2272 u8 *mac_addr = NULL;
2275 memset(&sinfo, 0, sizeof(sinfo));
2277 if (!info->attrs[NL80211_ATTR_MAC])
2280 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2282 if (!rdev->ops->get_station)
2285 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2289 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2293 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2294 dev, mac_addr, &sinfo) < 0) {
2299 return genlmsg_reply(msg, info);
2303 * Get vlan interface making sure it is running and on the right wiphy.
2305 static int get_vlan(struct genl_info *info,
2306 struct cfg80211_registered_device *rdev,
2307 struct net_device **vlan)
2309 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2313 *vlan = dev_get_by_index(genl_info_net(info),
2314 nla_get_u32(vlanattr));
2317 if (!(*vlan)->ieee80211_ptr)
2319 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2321 if (!netif_running(*vlan))
2327 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2329 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2331 struct net_device *dev = info->user_ptr[1];
2332 struct station_parameters params;
2333 u8 *mac_addr = NULL;
2335 memset(¶ms, 0, sizeof(params));
2337 params.listen_interval = -1;
2338 params.plink_state = -1;
2340 if (info->attrs[NL80211_ATTR_STA_AID])
2343 if (!info->attrs[NL80211_ATTR_MAC])
2346 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2348 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2349 params.supported_rates =
2350 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2351 params.supported_rates_len =
2352 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2355 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2356 params.listen_interval =
2357 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2359 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2361 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2363 if (parse_station_flags(info, ¶ms))
2366 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2367 params.plink_action =
2368 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2370 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2371 params.plink_state =
2372 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2374 err = get_vlan(info, rdev, ¶ms.vlan);
2378 /* validate settings */
2381 switch (dev->ieee80211_ptr->iftype) {
2382 case NL80211_IFTYPE_AP:
2383 case NL80211_IFTYPE_AP_VLAN:
2384 case NL80211_IFTYPE_P2P_GO:
2385 /* disallow mesh-specific things */
2386 if (params.plink_action)
2389 case NL80211_IFTYPE_P2P_CLIENT:
2390 case NL80211_IFTYPE_STATION:
2391 /* disallow everything but AUTHORIZED flag */
2392 if (params.plink_action)
2396 if (params.supported_rates)
2400 if (params.listen_interval >= 0)
2402 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2405 case NL80211_IFTYPE_MESH_POINT:
2406 /* disallow things mesh doesn't support */
2411 if (params.listen_interval >= 0)
2413 if (params.sta_flags_mask &
2414 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2415 BIT(NL80211_STA_FLAG_MFP) |
2416 BIT(NL80211_STA_FLAG_AUTHORIZED)))
2426 if (!rdev->ops->change_station) {
2431 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2435 dev_put(params.vlan);
2440 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2444 struct net_device *dev = info->user_ptr[1];
2445 struct station_parameters params;
2446 u8 *mac_addr = NULL;
2448 memset(¶ms, 0, sizeof(params));
2450 if (!info->attrs[NL80211_ATTR_MAC])
2453 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2456 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2459 if (!info->attrs[NL80211_ATTR_STA_AID])
2462 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2463 params.supported_rates =
2464 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2465 params.supported_rates_len =
2466 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2467 params.listen_interval =
2468 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2470 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2471 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2474 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2476 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2478 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2479 params.plink_action =
2480 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2482 if (parse_station_flags(info, ¶ms))
2485 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2486 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2487 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2488 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2491 err = get_vlan(info, rdev, ¶ms.vlan);
2495 /* validate settings */
2498 if (!rdev->ops->add_station) {
2503 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2507 dev_put(params.vlan);
2511 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2514 struct net_device *dev = info->user_ptr[1];
2515 u8 *mac_addr = NULL;
2517 if (info->attrs[NL80211_ATTR_MAC])
2518 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2520 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2521 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2522 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
2523 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2526 if (!rdev->ops->del_station)
2529 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2532 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2533 int flags, struct net_device *dev,
2534 u8 *dst, u8 *next_hop,
2535 struct mpath_info *pinfo)
2538 struct nlattr *pinfoattr;
2540 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2544 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2545 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2546 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2548 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2550 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2552 goto nla_put_failure;
2553 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2554 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2556 if (pinfo->filled & MPATH_INFO_SN)
2557 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2559 if (pinfo->filled & MPATH_INFO_METRIC)
2560 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2562 if (pinfo->filled & MPATH_INFO_EXPTIME)
2563 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2565 if (pinfo->filled & MPATH_INFO_FLAGS)
2566 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2568 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2569 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2570 pinfo->discovery_timeout);
2571 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2572 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2573 pinfo->discovery_retries);
2575 nla_nest_end(msg, pinfoattr);
2577 return genlmsg_end(msg, hdr);
2580 genlmsg_cancel(msg, hdr);
2584 static int nl80211_dump_mpath(struct sk_buff *skb,
2585 struct netlink_callback *cb)
2587 struct mpath_info pinfo;
2588 struct cfg80211_registered_device *dev;
2589 struct net_device *netdev;
2591 u8 next_hop[ETH_ALEN];
2592 int path_idx = cb->args[1];
2595 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2599 if (!dev->ops->dump_mpath) {
2604 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2610 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2611 dst, next_hop, &pinfo);
2617 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2618 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2619 netdev, dst, next_hop,
2628 cb->args[1] = path_idx;
2631 nl80211_finish_netdev_dump(dev);
2635 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2639 struct net_device *dev = info->user_ptr[1];
2640 struct mpath_info pinfo;
2641 struct sk_buff *msg;
2643 u8 next_hop[ETH_ALEN];
2645 memset(&pinfo, 0, sizeof(pinfo));
2647 if (!info->attrs[NL80211_ATTR_MAC])
2650 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2652 if (!rdev->ops->get_mpath)
2655 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2658 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2666 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2667 dev, dst, next_hop, &pinfo) < 0) {
2672 return genlmsg_reply(msg, info);
2675 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2678 struct net_device *dev = info->user_ptr[1];
2680 u8 *next_hop = NULL;
2682 if (!info->attrs[NL80211_ATTR_MAC])
2685 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2688 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2689 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2691 if (!rdev->ops->change_mpath)
2694 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2697 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2700 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2703 struct net_device *dev = info->user_ptr[1];
2705 u8 *next_hop = NULL;
2707 if (!info->attrs[NL80211_ATTR_MAC])
2710 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2713 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2714 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2716 if (!rdev->ops->add_mpath)
2719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2722 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2725 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2728 struct net_device *dev = info->user_ptr[1];
2731 if (info->attrs[NL80211_ATTR_MAC])
2732 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2734 if (!rdev->ops->del_mpath)
2737 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2740 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2743 struct net_device *dev = info->user_ptr[1];
2744 struct bss_parameters params;
2746 memset(¶ms, 0, sizeof(params));
2747 /* default to not changing parameters */
2748 params.use_cts_prot = -1;
2749 params.use_short_preamble = -1;
2750 params.use_short_slot_time = -1;
2751 params.ap_isolate = -1;
2752 params.ht_opmode = -1;
2754 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2755 params.use_cts_prot =
2756 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2757 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2758 params.use_short_preamble =
2759 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2760 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2761 params.use_short_slot_time =
2762 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2763 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2764 params.basic_rates =
2765 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2766 params.basic_rates_len =
2767 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2769 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2770 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
2771 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2773 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
2775 if (!rdev->ops->change_bss)
2778 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2779 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2782 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2785 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2786 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2787 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2788 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2789 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2790 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2791 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2794 static int parse_reg_rule(struct nlattr *tb[],
2795 struct ieee80211_reg_rule *reg_rule)
2797 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2798 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2800 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2802 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2804 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2806 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2808 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2811 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2813 freq_range->start_freq_khz =
2814 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2815 freq_range->end_freq_khz =
2816 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2817 freq_range->max_bandwidth_khz =
2818 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2820 power_rule->max_eirp =
2821 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2823 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2824 power_rule->max_antenna_gain =
2825 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2830 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2836 * You should only get this when cfg80211 hasn't yet initialized
2837 * completely when built-in to the kernel right between the time
2838 * window between nl80211_init() and regulatory_init(), if that is
2841 mutex_lock(&cfg80211_mutex);
2842 if (unlikely(!cfg80211_regdomain)) {
2843 mutex_unlock(&cfg80211_mutex);
2844 return -EINPROGRESS;
2846 mutex_unlock(&cfg80211_mutex);
2848 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2851 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2853 r = regulatory_hint_user(data);
2858 static int nl80211_get_mesh_config(struct sk_buff *skb,
2859 struct genl_info *info)
2861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2862 struct net_device *dev = info->user_ptr[1];
2863 struct wireless_dev *wdev = dev->ieee80211_ptr;
2864 struct mesh_config cur_params;
2867 struct nlattr *pinfoattr;
2868 struct sk_buff *msg;
2870 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2873 if (!rdev->ops->get_mesh_config)
2877 /* If not connected, get default parameters */
2878 if (!wdev->mesh_id_len)
2879 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
2881 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
2888 /* Draw up a netlink message to send back */
2889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2892 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2893 NL80211_CMD_GET_MESH_CONFIG);
2896 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
2898 goto nla_put_failure;
2899 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2900 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2901 cur_params.dot11MeshRetryTimeout);
2902 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2903 cur_params.dot11MeshConfirmTimeout);
2904 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2905 cur_params.dot11MeshHoldingTimeout);
2906 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2907 cur_params.dot11MeshMaxPeerLinks);
2908 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2909 cur_params.dot11MeshMaxRetries);
2910 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2911 cur_params.dot11MeshTTL);
2912 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2913 cur_params.element_ttl);
2914 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2915 cur_params.auto_open_plinks);
2916 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2917 cur_params.dot11MeshHWMPmaxPREQretries);
2918 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2919 cur_params.path_refresh_time);
2920 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2921 cur_params.min_discovery_timeout);
2922 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2923 cur_params.dot11MeshHWMPactivePathTimeout);
2924 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2925 cur_params.dot11MeshHWMPpreqMinInterval);
2926 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2927 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2928 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2929 cur_params.dot11MeshHWMPRootMode);
2930 nla_nest_end(msg, pinfoattr);
2931 genlmsg_end(msg, hdr);
2932 return genlmsg_reply(msg, info);
2935 genlmsg_cancel(msg, hdr);
2941 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
2942 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2943 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2944 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2945 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2946 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2947 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2948 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
2949 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2951 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2952 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2953 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2954 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2955 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2956 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2959 static const struct nla_policy
2960 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
2961 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
2962 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
2963 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
2964 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
2965 .len = IEEE80211_MAX_DATA_LEN },
2966 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
2969 static int nl80211_parse_mesh_config(struct genl_info *info,
2970 struct mesh_config *cfg,
2973 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2976 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2978 if (table[attr_num]) {\
2979 cfg->param = nla_fn(table[attr_num]); \
2980 mask |= (1 << (attr_num - 1)); \
2985 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
2987 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2988 info->attrs[NL80211_ATTR_MESH_CONFIG],
2989 nl80211_meshconf_params_policy))
2992 /* This makes sure that there aren't more than 32 mesh config
2993 * parameters (otherwise our bitfield scheme would not work.) */
2994 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2996 /* Fill in the params struct */
2997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2998 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3000 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3002 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3004 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3005 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3006 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3007 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3008 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3009 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3010 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
3011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3012 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3013 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3014 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3016 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3017 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3019 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3021 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3022 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3024 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3025 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3027 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3028 dot11MeshHWMPnetDiameterTraversalTime,
3029 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3031 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3032 dot11MeshHWMPRootMode, mask,
3033 NL80211_MESHCONF_HWMP_ROOTMODE,
3040 #undef FILL_IN_MESH_PARAM_IF_SET
3043 static int nl80211_parse_mesh_setup(struct genl_info *info,
3044 struct mesh_setup *setup)
3046 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3048 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3050 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3051 info->attrs[NL80211_ATTR_MESH_SETUP],
3052 nl80211_mesh_setup_params_policy))
3055 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3056 setup->path_sel_proto =
3057 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3058 IEEE80211_PATH_PROTOCOL_VENDOR :
3059 IEEE80211_PATH_PROTOCOL_HWMP;
3061 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3062 setup->path_metric =
3063 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3064 IEEE80211_PATH_METRIC_VENDOR :
3065 IEEE80211_PATH_METRIC_AIRTIME;
3068 if (tb[NL80211_MESH_SETUP_IE]) {
3069 struct nlattr *ieattr =
3070 tb[NL80211_MESH_SETUP_IE];
3071 if (!is_valid_ie_attr(ieattr))
3073 setup->ie = nla_data(ieattr);
3074 setup->ie_len = nla_len(ieattr);
3076 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3077 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3082 static int nl80211_update_mesh_config(struct sk_buff *skb,
3083 struct genl_info *info)
3085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3086 struct net_device *dev = info->user_ptr[1];
3087 struct wireless_dev *wdev = dev->ieee80211_ptr;
3088 struct mesh_config cfg;
3092 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3095 if (!rdev->ops->update_mesh_config)
3098 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3103 if (!wdev->mesh_id_len)
3107 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3115 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3117 struct sk_buff *msg;
3119 struct nlattr *nl_reg_rules;
3123 mutex_lock(&cfg80211_mutex);
3125 if (!cfg80211_regdomain)
3128 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3134 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3135 NL80211_CMD_GET_REG);
3139 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3140 cfg80211_regdomain->alpha2);
3142 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3144 goto nla_put_failure;
3146 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3147 struct nlattr *nl_reg_rule;
3148 const struct ieee80211_reg_rule *reg_rule;
3149 const struct ieee80211_freq_range *freq_range;
3150 const struct ieee80211_power_rule *power_rule;
3152 reg_rule = &cfg80211_regdomain->reg_rules[i];
3153 freq_range = ®_rule->freq_range;
3154 power_rule = ®_rule->power_rule;
3156 nl_reg_rule = nla_nest_start(msg, i);
3158 goto nla_put_failure;
3160 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3162 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3163 freq_range->start_freq_khz);
3164 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3165 freq_range->end_freq_khz);
3166 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3167 freq_range->max_bandwidth_khz);
3168 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3169 power_rule->max_antenna_gain);
3170 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3171 power_rule->max_eirp);
3173 nla_nest_end(msg, nl_reg_rule);
3176 nla_nest_end(msg, nl_reg_rules);
3178 genlmsg_end(msg, hdr);
3179 err = genlmsg_reply(msg, info);
3183 genlmsg_cancel(msg, hdr);
3188 mutex_unlock(&cfg80211_mutex);
3192 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3194 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3195 struct nlattr *nl_reg_rule;
3196 char *alpha2 = NULL;
3197 int rem_reg_rules = 0, r = 0;
3198 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3199 struct ieee80211_regdomain *rd = NULL;
3201 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3204 if (!info->attrs[NL80211_ATTR_REG_RULES])
3207 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3209 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3212 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
3216 mutex_lock(&cfg80211_mutex);
3218 if (!reg_is_valid_request(alpha2)) {
3223 size_of_regd = sizeof(struct ieee80211_regdomain) +
3224 (num_rules * sizeof(struct ieee80211_reg_rule));
3226 rd = kzalloc(size_of_regd, GFP_KERNEL);
3232 rd->n_reg_rules = num_rules;
3233 rd->alpha2[0] = alpha2[0];
3234 rd->alpha2[1] = alpha2[1];
3236 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3238 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3239 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3241 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3247 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3253 BUG_ON(rule_idx != num_rules);
3257 mutex_unlock(&cfg80211_mutex);
3262 mutex_unlock(&cfg80211_mutex);
3267 static int validate_scan_freqs(struct nlattr *freqs)
3269 struct nlattr *attr1, *attr2;
3270 int n_channels = 0, tmp1, tmp2;
3272 nla_for_each_nested(attr1, freqs, tmp1) {
3275 * Some hardware has a limited channel list for
3276 * scanning, and it is pretty much nonsensical
3277 * to scan for a channel twice, so disallow that
3278 * and don't require drivers to check that the
3279 * channel list they get isn't longer than what
3280 * they can scan, as long as they can scan all
3281 * the channels they registered at once.
3283 nla_for_each_nested(attr2, freqs, tmp2)
3284 if (attr1 != attr2 &&
3285 nla_get_u32(attr1) == nla_get_u32(attr2))
3292 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3295 struct net_device *dev = info->user_ptr[1];
3296 struct cfg80211_scan_request *request;
3297 struct nlattr *attr;
3298 struct wiphy *wiphy;
3299 int err, tmp, n_ssids = 0, n_channels, i;
3300 enum ieee80211_band band;
3303 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3306 wiphy = &rdev->wiphy;
3308 if (!rdev->ops->scan)
3314 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3315 n_channels = validate_scan_freqs(
3316 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3322 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3323 if (wiphy->bands[band])
3324 n_channels += wiphy->bands[band]->n_channels;
3327 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3328 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3331 if (n_ssids > wiphy->max_scan_ssids)
3334 if (info->attrs[NL80211_ATTR_IE])
3335 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3339 if (ie_len > wiphy->max_scan_ie_len)
3342 request = kzalloc(sizeof(*request)
3343 + sizeof(*request->ssids) * n_ssids
3344 + sizeof(*request->channels) * n_channels
3345 + ie_len, GFP_KERNEL);
3350 request->ssids = (void *)&request->channels[n_channels];
3351 request->n_ssids = n_ssids;
3354 request->ie = (void *)(request->ssids + n_ssids);
3356 request->ie = (void *)(request->channels + n_channels);
3360 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3361 /* user specified, bail out if channel not found */
3362 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3363 struct ieee80211_channel *chan;
3365 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3372 /* ignore disabled channels */
3373 if (chan->flags & IEEE80211_CHAN_DISABLED)
3376 request->channels[i] = chan;
3381 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3383 if (!wiphy->bands[band])
3385 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3386 struct ieee80211_channel *chan;
3388 chan = &wiphy->bands[band]->channels[j];
3390 if (chan->flags & IEEE80211_CHAN_DISABLED)
3393 request->channels[i] = chan;
3404 request->n_channels = i;
3407 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3408 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3409 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3413 request->ssids[i].ssid_len = nla_len(attr);
3414 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3419 if (info->attrs[NL80211_ATTR_IE]) {
3420 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3421 memcpy((void *)request->ie,
3422 nla_data(info->attrs[NL80211_ATTR_IE]),
3427 request->wiphy = &rdev->wiphy;
3429 rdev->scan_req = request;
3430 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3433 nl80211_send_scan_start(rdev, dev);
3437 rdev->scan_req = NULL;
3444 static int nl80211_start_sched_scan(struct sk_buff *skb,
3445 struct genl_info *info)
3447 struct cfg80211_sched_scan_request *request;
3448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3449 struct net_device *dev = info->user_ptr[1];
3450 struct nlattr *attr;
3451 struct wiphy *wiphy;
3452 int err, tmp, n_ssids = 0, n_channels, i;
3454 enum ieee80211_band band;
3457 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3458 !rdev->ops->sched_scan_start)
3461 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3464 if (rdev->sched_scan_req)
3465 return -EINPROGRESS;
3467 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3470 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3474 wiphy = &rdev->wiphy;
3476 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3477 n_channels = validate_scan_freqs(
3478 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3484 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3485 if (wiphy->bands[band])
3486 n_channels += wiphy->bands[band]->n_channels;
3489 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3490 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3494 if (n_ssids > wiphy->max_scan_ssids)
3497 if (info->attrs[NL80211_ATTR_IE])
3498 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3502 if (ie_len > wiphy->max_scan_ie_len)
3505 request = kzalloc(sizeof(*request)
3506 + sizeof(*request->ssids) * n_ssids
3507 + sizeof(*request->channels) * n_channels
3508 + ie_len, GFP_KERNEL);
3513 request->ssids = (void *)&request->channels[n_channels];
3514 request->n_ssids = n_ssids;
3517 request->ie = (void *)(request->ssids + n_ssids);
3519 request->ie = (void *)(request->channels + n_channels);
3523 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3524 /* user specified, bail out if channel not found */
3525 nla_for_each_nested(attr,
3526 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3528 struct ieee80211_channel *chan;
3530 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3537 /* ignore disabled channels */
3538 if (chan->flags & IEEE80211_CHAN_DISABLED)
3541 request->channels[i] = chan;
3546 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3548 if (!wiphy->bands[band])
3550 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3551 struct ieee80211_channel *chan;
3553 chan = &wiphy->bands[band]->channels[j];
3555 if (chan->flags & IEEE80211_CHAN_DISABLED)
3558 request->channels[i] = chan;
3569 request->n_channels = i;
3572 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3573 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3575 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
3579 request->ssids[i].ssid_len = nla_len(attr);
3580 memcpy(request->ssids[i].ssid, nla_data(attr),
3586 if (info->attrs[NL80211_ATTR_IE]) {
3587 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3588 memcpy((void *)request->ie,
3589 nla_data(info->attrs[NL80211_ATTR_IE]),
3594 request->wiphy = &rdev->wiphy;
3595 request->interval = interval;
3597 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3599 rdev->sched_scan_req = request;
3600 nl80211_send_sched_scan(rdev, dev,
3601 NL80211_CMD_START_SCHED_SCAN);
3611 static int nl80211_stop_sched_scan(struct sk_buff *skb,
3612 struct genl_info *info)
3614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3616 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3617 !rdev->ops->sched_scan_stop)
3620 return __cfg80211_stop_sched_scan(rdev, false);
3623 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3625 struct cfg80211_registered_device *rdev,
3626 struct wireless_dev *wdev,
3627 struct cfg80211_internal_bss *intbss)
3629 struct cfg80211_bss *res = &intbss->pub;
3634 ASSERT_WDEV_LOCK(wdev);
3636 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
3637 NL80211_CMD_NEW_SCAN_RESULTS);
3641 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3643 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3644 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3646 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3648 goto nla_put_failure;
3649 if (!is_zero_ether_addr(res->bssid))
3650 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3651 if (res->information_elements && res->len_information_elements)
3652 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3653 res->len_information_elements,
3654 res->information_elements);
3655 if (res->beacon_ies && res->len_beacon_ies &&
3656 res->beacon_ies != res->information_elements)
3657 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3658 res->len_beacon_ies, res->beacon_ies);
3660 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3661 if (res->beacon_interval)
3662 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3663 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3664 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3665 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3666 jiffies_to_msecs(jiffies - intbss->ts));
3668 switch (rdev->wiphy.signal_type) {
3669 case CFG80211_SIGNAL_TYPE_MBM:
3670 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3672 case CFG80211_SIGNAL_TYPE_UNSPEC:
3673 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3679 switch (wdev->iftype) {
3680 case NL80211_IFTYPE_P2P_CLIENT:
3681 case NL80211_IFTYPE_STATION:
3682 if (intbss == wdev->current_bss)
3683 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3684 NL80211_BSS_STATUS_ASSOCIATED);
3685 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3686 if (intbss != wdev->auth_bsses[i])
3688 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3689 NL80211_BSS_STATUS_AUTHENTICATED);
3693 case NL80211_IFTYPE_ADHOC:
3694 if (intbss == wdev->current_bss)
3695 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3696 NL80211_BSS_STATUS_IBSS_JOINED);
3702 nla_nest_end(msg, bss);
3704 return genlmsg_end(msg, hdr);
3707 genlmsg_cancel(msg, hdr);
3711 static int nl80211_dump_scan(struct sk_buff *skb,
3712 struct netlink_callback *cb)
3714 struct cfg80211_registered_device *rdev;
3715 struct net_device *dev;
3716 struct cfg80211_internal_bss *scan;
3717 struct wireless_dev *wdev;
3718 int start = cb->args[1], idx = 0;
3721 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3725 wdev = dev->ieee80211_ptr;
3728 spin_lock_bh(&rdev->bss_lock);
3729 cfg80211_bss_expire(rdev);
3731 cb->seq = rdev->bss_generation;
3733 list_for_each_entry(scan, &rdev->bss_list, list) {
3736 if (nl80211_send_bss(skb, cb,
3737 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3738 rdev, wdev, scan) < 0) {
3744 spin_unlock_bh(&rdev->bss_lock);
3748 nl80211_finish_netdev_dump(rdev);
3753 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3754 int flags, struct net_device *dev,
3755 struct survey_info *survey)
3758 struct nlattr *infoattr;
3760 hdr = nl80211hdr_put(msg, pid, seq, flags,
3761 NL80211_CMD_NEW_SURVEY_RESULTS);
3765 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3767 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3769 goto nla_put_failure;
3771 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3772 survey->channel->center_freq);
3773 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3774 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3776 if (survey->filled & SURVEY_INFO_IN_USE)
3777 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
3778 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3779 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3780 survey->channel_time);
3781 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3782 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3783 survey->channel_time_busy);
3784 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3785 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3786 survey->channel_time_ext_busy);
3787 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3788 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3789 survey->channel_time_rx);
3790 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3791 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3792 survey->channel_time_tx);
3794 nla_nest_end(msg, infoattr);
3796 return genlmsg_end(msg, hdr);
3799 genlmsg_cancel(msg, hdr);
3803 static int nl80211_dump_survey(struct sk_buff *skb,
3804 struct netlink_callback *cb)
3806 struct survey_info survey;
3807 struct cfg80211_registered_device *dev;
3808 struct net_device *netdev;
3809 int survey_idx = cb->args[1];
3812 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3816 if (!dev->ops->dump_survey) {
3822 struct ieee80211_channel *chan;
3824 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3831 /* Survey without a channel doesn't make sense */
3832 if (!survey.channel) {
3837 chan = ieee80211_get_channel(&dev->wiphy,
3838 survey.channel->center_freq);
3839 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
3844 if (nl80211_send_survey(skb,
3845 NETLINK_CB(cb->skb).pid,
3846 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3854 cb->args[1] = survey_idx;
3857 nl80211_finish_netdev_dump(dev);
3861 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3863 return auth_type <= NL80211_AUTHTYPE_MAX;
3866 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3868 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3869 NL80211_WPA_VERSION_2));
3872 static bool nl80211_valid_akm_suite(u32 akm)
3874 return akm == WLAN_AKM_SUITE_8021X ||
3875 akm == WLAN_AKM_SUITE_PSK;
3878 static bool nl80211_valid_cipher_suite(u32 cipher)
3880 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3881 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3882 cipher == WLAN_CIPHER_SUITE_TKIP ||
3883 cipher == WLAN_CIPHER_SUITE_CCMP ||
3884 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
3888 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3891 struct net_device *dev = info->user_ptr[1];
3892 struct ieee80211_channel *chan;
3893 const u8 *bssid, *ssid, *ie = NULL;
3894 int err, ssid_len, ie_len = 0;
3895 enum nl80211_auth_type auth_type;
3896 struct key_parse key;
3897 bool local_state_change;
3899 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3902 if (!info->attrs[NL80211_ATTR_MAC])
3905 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3908 if (!info->attrs[NL80211_ATTR_SSID])
3911 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3914 err = nl80211_parse_key(info, &key);
3919 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3921 if (!key.p.key || !key.p.key_len)
3923 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3924 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3925 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3926 key.p.key_len != WLAN_KEY_LEN_WEP104))
3938 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3939 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3948 if (!rdev->ops->auth)
3951 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
3952 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3955 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3956 chan = ieee80211_get_channel(&rdev->wiphy,
3957 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3958 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3961 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3962 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3964 if (info->attrs[NL80211_ATTR_IE]) {
3965 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3966 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3969 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3970 if (!nl80211_valid_auth_type(auth_type))
3973 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3975 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3976 ssid, ssid_len, ie, ie_len,
3977 key.p.key, key.p.key_len, key.idx,
3978 local_state_change);
3981 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3982 struct genl_info *info,
3983 struct cfg80211_crypto_settings *settings,
3986 memset(settings, 0, sizeof(*settings));
3988 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3990 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3992 proto = nla_get_u16(
3993 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3994 settings->control_port_ethertype = cpu_to_be16(proto);
3995 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3998 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3999 settings->control_port_no_encrypt = true;
4001 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4003 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4007 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4008 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4009 settings->n_ciphers_pairwise = len / sizeof(u32);
4011 if (len % sizeof(u32))
4014 if (settings->n_ciphers_pairwise > cipher_limit)
4017 memcpy(settings->ciphers_pairwise, data, len);
4019 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4020 if (!nl80211_valid_cipher_suite(
4021 settings->ciphers_pairwise[i]))
4025 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4026 settings->cipher_group =
4027 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4028 if (!nl80211_valid_cipher_suite(settings->cipher_group))
4032 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4033 settings->wpa_versions =
4034 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4035 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4039 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4043 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4044 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4045 settings->n_akm_suites = len / sizeof(u32);
4047 if (len % sizeof(u32))
4050 memcpy(settings->akm_suites, data, len);
4052 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4053 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
4060 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4063 struct net_device *dev = info->user_ptr[1];
4064 struct cfg80211_crypto_settings crypto;
4065 struct ieee80211_channel *chan;
4066 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4067 int err, ssid_len, ie_len = 0;
4068 bool use_mfp = false;
4070 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4073 if (!info->attrs[NL80211_ATTR_MAC] ||
4074 !info->attrs[NL80211_ATTR_SSID] ||
4075 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4078 if (!rdev->ops->assoc)
4081 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4082 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4085 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4087 chan = ieee80211_get_channel(&rdev->wiphy,
4088 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4089 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4092 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4093 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4095 if (info->attrs[NL80211_ATTR_IE]) {
4096 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4097 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4100 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4101 enum nl80211_mfp mfp =
4102 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4103 if (mfp == NL80211_MFP_REQUIRED)
4105 else if (mfp != NL80211_MFP_NO)
4109 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4110 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4112 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
4114 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4115 ssid, ssid_len, ie, ie_len, use_mfp,
4121 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4124 struct net_device *dev = info->user_ptr[1];
4125 const u8 *ie = NULL, *bssid;
4128 bool local_state_change;
4130 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4133 if (!info->attrs[NL80211_ATTR_MAC])
4136 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4139 if (!rdev->ops->deauth)
4142 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4143 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4146 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4148 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4149 if (reason_code == 0) {
4150 /* Reason Code 0 is reserved */
4154 if (info->attrs[NL80211_ATTR_IE]) {
4155 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4156 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4159 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4161 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4162 local_state_change);
4165 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4167 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4168 struct net_device *dev = info->user_ptr[1];
4169 const u8 *ie = NULL, *bssid;
4172 bool local_state_change;
4174 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4177 if (!info->attrs[NL80211_ATTR_MAC])
4180 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4183 if (!rdev->ops->disassoc)
4186 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4187 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4190 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4192 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4193 if (reason_code == 0) {
4194 /* Reason Code 0 is reserved */
4198 if (info->attrs[NL80211_ATTR_IE]) {
4199 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4200 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4203 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4205 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4206 local_state_change);
4210 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4211 int mcast_rate[IEEE80211_NUM_BANDS],
4214 struct wiphy *wiphy = &rdev->wiphy;
4218 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4219 struct ieee80211_supported_band *sband;
4221 sband = wiphy->bands[band];
4225 for (i = 0; i < sband->n_bitrates; i++) {
4226 if (sband->bitrates[i].bitrate == rateval) {
4227 mcast_rate[band] = i + 1;
4237 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4239 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4240 struct net_device *dev = info->user_ptr[1];
4241 struct cfg80211_ibss_params ibss;
4242 struct wiphy *wiphy;
4243 struct cfg80211_cached_keys *connkeys = NULL;
4246 memset(&ibss, 0, sizeof(ibss));
4248 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4251 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4252 !info->attrs[NL80211_ATTR_SSID] ||
4253 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4256 ibss.beacon_interval = 100;
4258 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4259 ibss.beacon_interval =
4260 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4261 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4265 if (!rdev->ops->join_ibss)
4268 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4271 wiphy = &rdev->wiphy;
4273 if (info->attrs[NL80211_ATTR_MAC])
4274 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4275 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4276 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4278 if (info->attrs[NL80211_ATTR_IE]) {
4279 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4280 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4283 ibss.channel = ieee80211_get_channel(wiphy,
4284 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4285 if (!ibss.channel ||
4286 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4287 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4290 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
4291 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4293 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4295 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4297 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4298 struct ieee80211_supported_band *sband =
4299 wiphy->bands[ibss.channel->band];
4305 for (i = 0; i < n_rates; i++) {
4306 int rate = (rates[i] & 0x7f) * 5;
4309 for (j = 0; j < sband->n_bitrates; j++) {
4310 if (sband->bitrates[j].bitrate == rate) {
4312 ibss.basic_rates |= BIT(j);
4321 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4322 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4323 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4326 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4327 connkeys = nl80211_parse_connkeys(rdev,
4328 info->attrs[NL80211_ATTR_KEYS]);
4329 if (IS_ERR(connkeys))
4330 return PTR_ERR(connkeys);
4333 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
4339 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4342 struct net_device *dev = info->user_ptr[1];
4344 if (!rdev->ops->leave_ibss)
4347 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4350 return cfg80211_leave_ibss(rdev, dev, false);
4353 #ifdef CONFIG_NL80211_TESTMODE
4354 static struct genl_multicast_group nl80211_testmode_mcgrp = {
4358 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4363 if (!info->attrs[NL80211_ATTR_TESTDATA])
4367 if (rdev->ops->testmode_cmd) {
4368 rdev->testmode_info = info;
4369 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4370 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4371 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4372 rdev->testmode_info = NULL;
4378 static int nl80211_testmode_dump(struct sk_buff *skb,
4379 struct netlink_callback *cb)
4381 struct cfg80211_registered_device *dev;
4389 * 0 is a valid index, but not valid for args[0],
4390 * so we need to offset by 1.
4392 phy_idx = cb->args[0] - 1;
4394 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4395 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4399 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4401 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4402 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4404 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4408 data = nla_data((void *)cb->args[1]);
4409 data_len = nla_len((void *)cb->args[1]);
4412 mutex_lock(&cfg80211_mutex);
4413 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4415 mutex_unlock(&cfg80211_mutex);
4418 cfg80211_lock_rdev(dev);
4419 mutex_unlock(&cfg80211_mutex);
4421 if (!dev->ops->testmode_dump) {
4427 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4428 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4429 NL80211_CMD_TESTMODE);
4430 struct nlattr *tmdata;
4432 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4433 genlmsg_cancel(skb, hdr);
4437 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4439 genlmsg_cancel(skb, hdr);
4442 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4444 nla_nest_end(skb, tmdata);
4446 if (err == -ENOBUFS || err == -ENOENT) {
4447 genlmsg_cancel(skb, hdr);
4450 genlmsg_cancel(skb, hdr);
4454 genlmsg_end(skb, hdr);
4459 cb->args[0] = phy_idx + 1;
4461 cfg80211_unlock_rdev(dev);
4465 static struct sk_buff *
4466 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4467 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4469 struct sk_buff *skb;
4471 struct nlattr *data;
4473 skb = nlmsg_new(approxlen + 100, gfp);
4477 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4483 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4484 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4486 ((void **)skb->cb)[0] = rdev;
4487 ((void **)skb->cb)[1] = hdr;
4488 ((void **)skb->cb)[2] = data;
4497 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4500 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4502 if (WARN_ON(!rdev->testmode_info))
4505 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4506 rdev->testmode_info->snd_pid,
4507 rdev->testmode_info->snd_seq,
4510 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4512 int cfg80211_testmode_reply(struct sk_buff *skb)
4514 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4515 void *hdr = ((void **)skb->cb)[1];
4516 struct nlattr *data = ((void **)skb->cb)[2];
4518 if (WARN_ON(!rdev->testmode_info)) {
4523 nla_nest_end(skb, data);
4524 genlmsg_end(skb, hdr);
4525 return genlmsg_reply(skb, rdev->testmode_info);
4527 EXPORT_SYMBOL(cfg80211_testmode_reply);
4529 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4530 int approxlen, gfp_t gfp)
4532 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4534 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4536 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4538 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4540 void *hdr = ((void **)skb->cb)[1];
4541 struct nlattr *data = ((void **)skb->cb)[2];
4543 nla_nest_end(skb, data);
4544 genlmsg_end(skb, hdr);
4545 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4547 EXPORT_SYMBOL(cfg80211_testmode_event);
4550 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4552 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4553 struct net_device *dev = info->user_ptr[1];
4554 struct cfg80211_connect_params connect;
4555 struct wiphy *wiphy;
4556 struct cfg80211_cached_keys *connkeys = NULL;
4559 memset(&connect, 0, sizeof(connect));
4561 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4564 if (!info->attrs[NL80211_ATTR_SSID] ||
4565 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4568 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4570 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4571 if (!nl80211_valid_auth_type(connect.auth_type))
4574 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4576 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4578 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
4579 NL80211_MAX_NR_CIPHER_SUITES);
4583 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4584 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4587 wiphy = &rdev->wiphy;
4589 if (info->attrs[NL80211_ATTR_MAC])
4590 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4591 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4592 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4594 if (info->attrs[NL80211_ATTR_IE]) {
4595 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4596 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4599 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4601 ieee80211_get_channel(wiphy,
4602 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4603 if (!connect.channel ||
4604 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4608 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4609 connkeys = nl80211_parse_connkeys(rdev,
4610 info->attrs[NL80211_ATTR_KEYS]);
4611 if (IS_ERR(connkeys))
4612 return PTR_ERR(connkeys);
4615 err = cfg80211_connect(rdev, dev, &connect, connkeys);
4621 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4624 struct net_device *dev = info->user_ptr[1];
4627 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4628 reason = WLAN_REASON_DEAUTH_LEAVING;
4630 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4635 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4636 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4639 return cfg80211_disconnect(rdev, dev, reason, true);
4642 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4649 if (!info->attrs[NL80211_ATTR_PID])
4652 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4654 net = get_net_ns_by_pid(pid);
4656 return PTR_ERR(net);
4660 /* check if anything to do */
4661 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4662 err = cfg80211_switch_netns(rdev, net);
4668 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4670 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4671 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4672 struct cfg80211_pmksa *pmksa) = NULL;
4673 struct net_device *dev = info->user_ptr[1];
4674 struct cfg80211_pmksa pmksa;
4676 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4678 if (!info->attrs[NL80211_ATTR_MAC])
4681 if (!info->attrs[NL80211_ATTR_PMKID])
4684 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4685 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4687 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4688 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4691 switch (info->genlhdr->cmd) {
4692 case NL80211_CMD_SET_PMKSA:
4693 rdev_ops = rdev->ops->set_pmksa;
4695 case NL80211_CMD_DEL_PMKSA:
4696 rdev_ops = rdev->ops->del_pmksa;
4706 return rdev_ops(&rdev->wiphy, dev, &pmksa);
4709 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4712 struct net_device *dev = info->user_ptr[1];
4714 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4715 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4718 if (!rdev->ops->flush_pmksa)
4721 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4724 static int nl80211_remain_on_channel(struct sk_buff *skb,
4725 struct genl_info *info)
4727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4728 struct net_device *dev = info->user_ptr[1];
4729 struct ieee80211_channel *chan;
4730 struct sk_buff *msg;
4733 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4737 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4738 !info->attrs[NL80211_ATTR_DURATION])
4741 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4744 * We should be on that channel for at least one jiffie,
4745 * and more than 5 seconds seems excessive.
4747 if (!duration || !msecs_to_jiffies(duration) ||
4748 duration > rdev->wiphy.max_remain_on_channel_duration)
4751 if (!rdev->ops->remain_on_channel)
4754 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4755 channel_type = nla_get_u32(
4756 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4757 if (channel_type != NL80211_CHAN_NO_HT &&
4758 channel_type != NL80211_CHAN_HT20 &&
4759 channel_type != NL80211_CHAN_HT40PLUS &&
4760 channel_type != NL80211_CHAN_HT40MINUS)
4764 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4765 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4769 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4773 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4774 NL80211_CMD_REMAIN_ON_CHANNEL);
4781 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4782 channel_type, duration, &cookie);
4787 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4789 genlmsg_end(msg, hdr);
4791 return genlmsg_reply(msg, info);
4800 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4801 struct genl_info *info)
4803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4804 struct net_device *dev = info->user_ptr[1];
4807 if (!info->attrs[NL80211_ATTR_COOKIE])
4810 if (!rdev->ops->cancel_remain_on_channel)
4813 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4815 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
4818 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4819 u8 *rates, u8 rates_len)
4824 for (i = 0; i < rates_len; i++) {
4825 int rate = (rates[i] & 0x7f) * 5;
4827 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4828 struct ieee80211_rate *srate =
4829 &sband->bitrates[ridx];
4830 if (rate == srate->bitrate) {
4835 if (ridx == sband->n_bitrates)
4836 return 0; /* rate not found */
4842 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
4843 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4844 .len = NL80211_MAX_SUPP_RATES },
4847 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4848 struct genl_info *info)
4850 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4852 struct cfg80211_bitrate_mask mask;
4854 struct net_device *dev = info->user_ptr[1];
4855 struct nlattr *tx_rates;
4856 struct ieee80211_supported_band *sband;
4858 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4861 if (!rdev->ops->set_bitrate_mask)
4864 memset(&mask, 0, sizeof(mask));
4865 /* Default to all rates enabled */
4866 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4867 sband = rdev->wiphy.bands[i];
4868 mask.control[i].legacy =
4869 sband ? (1 << sband->n_bitrates) - 1 : 0;
4873 * The nested attribute uses enum nl80211_band as the index. This maps
4874 * directly to the enum ieee80211_band values used in cfg80211.
4876 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4878 enum ieee80211_band band = nla_type(tx_rates);
4879 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4881 sband = rdev->wiphy.bands[band];
4884 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4885 nla_len(tx_rates), nl80211_txattr_policy);
4886 if (tb[NL80211_TXRATE_LEGACY]) {
4887 mask.control[band].legacy = rateset_to_mask(
4889 nla_data(tb[NL80211_TXRATE_LEGACY]),
4890 nla_len(tb[NL80211_TXRATE_LEGACY]));
4891 if (mask.control[band].legacy == 0)
4896 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
4899 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
4901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4902 struct net_device *dev = info->user_ptr[1];
4903 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
4905 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4908 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4909 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
4911 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4912 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4913 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4914 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4915 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4916 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4917 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4920 /* not much point in registering if we can't reply */
4921 if (!rdev->ops->mgmt_tx)
4924 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
4926 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4927 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
4930 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
4932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4933 struct net_device *dev = info->user_ptr[1];
4934 struct ieee80211_channel *chan;
4935 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4936 bool channel_type_valid = false;
4941 struct sk_buff *msg;
4942 unsigned int wait = 0;
4945 if (!info->attrs[NL80211_ATTR_FRAME] ||
4946 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4949 if (!rdev->ops->mgmt_tx)
4952 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4953 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4954 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4955 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4956 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4957 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4958 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4961 if (info->attrs[NL80211_ATTR_DURATION]) {
4962 if (!rdev->ops->mgmt_tx_cancel_wait)
4964 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4967 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4968 channel_type = nla_get_u32(
4969 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4970 if (channel_type != NL80211_CHAN_NO_HT &&
4971 channel_type != NL80211_CHAN_HT20 &&
4972 channel_type != NL80211_CHAN_HT40PLUS &&
4973 channel_type != NL80211_CHAN_HT40MINUS)
4975 channel_type_valid = true;
4978 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4980 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4981 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4985 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4989 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4996 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4997 channel_type_valid, wait,
4998 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4999 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5004 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5006 genlmsg_end(msg, hdr);
5007 return genlmsg_reply(msg, info);
5016 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5019 struct net_device *dev = info->user_ptr[1];
5022 if (!info->attrs[NL80211_ATTR_COOKIE])
5025 if (!rdev->ops->mgmt_tx_cancel_wait)
5028 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5029 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5030 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5031 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5032 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5033 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5036 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5038 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5041 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5044 struct wireless_dev *wdev;
5045 struct net_device *dev = info->user_ptr[1];
5050 if (!info->attrs[NL80211_ATTR_PS_STATE])
5053 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5055 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5058 wdev = dev->ieee80211_ptr;
5060 if (!rdev->ops->set_power_mgmt)
5063 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5065 if (state == wdev->ps)
5068 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5075 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5077 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5078 enum nl80211_ps_state ps_state;
5079 struct wireless_dev *wdev;
5080 struct net_device *dev = info->user_ptr[1];
5081 struct sk_buff *msg;
5085 wdev = dev->ieee80211_ptr;
5087 if (!rdev->ops->set_power_mgmt)
5090 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5094 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5095 NL80211_CMD_GET_POWER_SAVE);
5102 ps_state = NL80211_PS_ENABLED;
5104 ps_state = NL80211_PS_DISABLED;
5106 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5108 genlmsg_end(msg, hdr);
5109 return genlmsg_reply(msg, info);
5118 static struct nla_policy
5119 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5120 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5121 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5122 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5125 static int nl80211_set_cqm_rssi(struct genl_info *info,
5126 s32 threshold, u32 hysteresis)
5128 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5129 struct wireless_dev *wdev;
5130 struct net_device *dev = info->user_ptr[1];
5135 wdev = dev->ieee80211_ptr;
5137 if (!rdev->ops->set_cqm_rssi_config)
5140 if (wdev->iftype != NL80211_IFTYPE_STATION &&
5141 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5144 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5145 threshold, hysteresis);
5148 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5150 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5154 cqm = info->attrs[NL80211_ATTR_CQM];
5160 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5161 nl80211_attr_cqm_policy);
5165 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5166 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5169 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5170 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5171 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5179 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5182 struct net_device *dev = info->user_ptr[1];
5183 struct mesh_config cfg;
5184 struct mesh_setup setup;
5187 /* start with default */
5188 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
5189 memcpy(&setup, &default_mesh_setup, sizeof(setup));
5191 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
5192 /* and parse parameters if given */
5193 err = nl80211_parse_mesh_config(info, &cfg, NULL);
5198 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5199 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5202 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5203 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5205 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5206 /* parse additional setup parameters if given */
5207 err = nl80211_parse_mesh_setup(info, &setup);
5212 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
5215 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5217 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5218 struct net_device *dev = info->user_ptr[1];
5220 return cfg80211_leave_mesh(rdev, dev);
5223 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5226 struct sk_buff *msg;
5229 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5232 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5236 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5237 NL80211_CMD_GET_WOWLAN);
5239 goto nla_put_failure;
5242 struct nlattr *nl_wowlan;
5244 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5246 goto nla_put_failure;
5248 if (rdev->wowlan->any)
5249 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5250 if (rdev->wowlan->disconnect)
5251 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5252 if (rdev->wowlan->magic_pkt)
5253 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5254 if (rdev->wowlan->n_patterns) {
5255 struct nlattr *nl_pats, *nl_pat;
5258 nl_pats = nla_nest_start(msg,
5259 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5261 goto nla_put_failure;
5263 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5264 nl_pat = nla_nest_start(msg, i + 1);
5266 goto nla_put_failure;
5267 pat_len = rdev->wowlan->patterns[i].pattern_len;
5268 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5269 DIV_ROUND_UP(pat_len, 8),
5270 rdev->wowlan->patterns[i].mask);
5271 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5273 rdev->wowlan->patterns[i].pattern);
5274 nla_nest_end(msg, nl_pat);
5276 nla_nest_end(msg, nl_pats);
5279 nla_nest_end(msg, nl_wowlan);
5282 genlmsg_end(msg, hdr);
5283 return genlmsg_reply(msg, info);
5290 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5292 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5293 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5294 struct cfg80211_wowlan no_triggers = {};
5295 struct cfg80211_wowlan new_triggers = {};
5296 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5299 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5302 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5305 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5306 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5307 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5308 nl80211_wowlan_policy);
5312 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5313 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5315 new_triggers.any = true;
5318 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5319 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5321 new_triggers.disconnect = true;
5324 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5325 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5327 new_triggers.magic_pkt = true;
5330 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5333 int rem, pat_len, mask_len;
5334 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5336 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5339 if (n_patterns > wowlan->n_patterns)
5342 new_triggers.patterns = kcalloc(n_patterns,
5343 sizeof(new_triggers.patterns[0]),
5345 if (!new_triggers.patterns)
5348 new_triggers.n_patterns = n_patterns;
5351 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5353 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5354 nla_data(pat), nla_len(pat), NULL);
5356 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5357 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5359 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5360 mask_len = DIV_ROUND_UP(pat_len, 8);
5361 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5364 if (pat_len > wowlan->pattern_max_len ||
5365 pat_len < wowlan->pattern_min_len)
5368 new_triggers.patterns[i].mask =
5369 kmalloc(mask_len + pat_len, GFP_KERNEL);
5370 if (!new_triggers.patterns[i].mask) {
5374 new_triggers.patterns[i].pattern =
5375 new_triggers.patterns[i].mask + mask_len;
5376 memcpy(new_triggers.patterns[i].mask,
5377 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5379 new_triggers.patterns[i].pattern_len = pat_len;
5380 memcpy(new_triggers.patterns[i].pattern,
5381 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5387 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5388 struct cfg80211_wowlan *ntrig;
5389 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5395 cfg80211_rdev_free_wowlan(rdev);
5396 rdev->wowlan = ntrig;
5399 cfg80211_rdev_free_wowlan(rdev);
5400 rdev->wowlan = NULL;
5405 for (i = 0; i < new_triggers.n_patterns; i++)
5406 kfree(new_triggers.patterns[i].mask);
5407 kfree(new_triggers.patterns);
5411 #define NL80211_FLAG_NEED_WIPHY 0x01
5412 #define NL80211_FLAG_NEED_NETDEV 0x02
5413 #define NL80211_FLAG_NEED_RTNL 0x04
5414 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5415 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5416 NL80211_FLAG_CHECK_NETDEV_UP)
5418 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5419 struct genl_info *info)
5421 struct cfg80211_registered_device *rdev;
5422 struct net_device *dev;
5424 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5429 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5430 rdev = cfg80211_get_dev_from_info(info);
5434 return PTR_ERR(rdev);
5436 info->user_ptr[0] = rdev;
5437 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5438 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5444 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5445 !netif_running(dev)) {
5446 cfg80211_unlock_rdev(rdev);
5452 info->user_ptr[0] = rdev;
5453 info->user_ptr[1] = dev;
5459 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5460 struct genl_info *info)
5462 if (info->user_ptr[0])
5463 cfg80211_unlock_rdev(info->user_ptr[0]);
5464 if (info->user_ptr[1])
5465 dev_put(info->user_ptr[1]);
5466 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5470 static struct genl_ops nl80211_ops[] = {
5472 .cmd = NL80211_CMD_GET_WIPHY,
5473 .doit = nl80211_get_wiphy,
5474 .dumpit = nl80211_dump_wiphy,
5475 .policy = nl80211_policy,
5476 /* can be retrieved by unprivileged users */
5477 .internal_flags = NL80211_FLAG_NEED_WIPHY,
5480 .cmd = NL80211_CMD_SET_WIPHY,
5481 .doit = nl80211_set_wiphy,
5482 .policy = nl80211_policy,
5483 .flags = GENL_ADMIN_PERM,
5484 .internal_flags = NL80211_FLAG_NEED_RTNL,
5487 .cmd = NL80211_CMD_GET_INTERFACE,
5488 .doit = nl80211_get_interface,
5489 .dumpit = nl80211_dump_interface,
5490 .policy = nl80211_policy,
5491 /* can be retrieved by unprivileged users */
5492 .internal_flags = NL80211_FLAG_NEED_NETDEV,
5495 .cmd = NL80211_CMD_SET_INTERFACE,
5496 .doit = nl80211_set_interface,
5497 .policy = nl80211_policy,
5498 .flags = GENL_ADMIN_PERM,
5499 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5500 NL80211_FLAG_NEED_RTNL,
5503 .cmd = NL80211_CMD_NEW_INTERFACE,
5504 .doit = nl80211_new_interface,
5505 .policy = nl80211_policy,
5506 .flags = GENL_ADMIN_PERM,
5507 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5508 NL80211_FLAG_NEED_RTNL,
5511 .cmd = NL80211_CMD_DEL_INTERFACE,
5512 .doit = nl80211_del_interface,
5513 .policy = nl80211_policy,
5514 .flags = GENL_ADMIN_PERM,
5515 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5516 NL80211_FLAG_NEED_RTNL,
5519 .cmd = NL80211_CMD_GET_KEY,
5520 .doit = nl80211_get_key,
5521 .policy = nl80211_policy,
5522 .flags = GENL_ADMIN_PERM,
5523 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5524 NL80211_FLAG_NEED_RTNL,
5527 .cmd = NL80211_CMD_SET_KEY,
5528 .doit = nl80211_set_key,
5529 .policy = nl80211_policy,
5530 .flags = GENL_ADMIN_PERM,
5531 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5532 NL80211_FLAG_NEED_RTNL,
5535 .cmd = NL80211_CMD_NEW_KEY,
5536 .doit = nl80211_new_key,
5537 .policy = nl80211_policy,
5538 .flags = GENL_ADMIN_PERM,
5539 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5540 NL80211_FLAG_NEED_RTNL,
5543 .cmd = NL80211_CMD_DEL_KEY,
5544 .doit = nl80211_del_key,
5545 .policy = nl80211_policy,
5546 .flags = GENL_ADMIN_PERM,
5547 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5548 NL80211_FLAG_NEED_RTNL,
5551 .cmd = NL80211_CMD_SET_BEACON,
5552 .policy = nl80211_policy,
5553 .flags = GENL_ADMIN_PERM,
5554 .doit = nl80211_addset_beacon,
5555 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5556 NL80211_FLAG_NEED_RTNL,
5559 .cmd = NL80211_CMD_NEW_BEACON,
5560 .policy = nl80211_policy,
5561 .flags = GENL_ADMIN_PERM,
5562 .doit = nl80211_addset_beacon,
5563 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5564 NL80211_FLAG_NEED_RTNL,
5567 .cmd = NL80211_CMD_DEL_BEACON,
5568 .policy = nl80211_policy,
5569 .flags = GENL_ADMIN_PERM,
5570 .doit = nl80211_del_beacon,
5571 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5572 NL80211_FLAG_NEED_RTNL,
5575 .cmd = NL80211_CMD_GET_STATION,
5576 .doit = nl80211_get_station,
5577 .dumpit = nl80211_dump_station,
5578 .policy = nl80211_policy,
5579 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5580 NL80211_FLAG_NEED_RTNL,
5583 .cmd = NL80211_CMD_SET_STATION,
5584 .doit = nl80211_set_station,
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_NEW_STATION,
5592 .doit = nl80211_new_station,
5593 .policy = nl80211_policy,
5594 .flags = GENL_ADMIN_PERM,
5595 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5596 NL80211_FLAG_NEED_RTNL,
5599 .cmd = NL80211_CMD_DEL_STATION,
5600 .doit = nl80211_del_station,
5601 .policy = nl80211_policy,
5602 .flags = GENL_ADMIN_PERM,
5603 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5604 NL80211_FLAG_NEED_RTNL,
5607 .cmd = NL80211_CMD_GET_MPATH,
5608 .doit = nl80211_get_mpath,
5609 .dumpit = nl80211_dump_mpath,
5610 .policy = nl80211_policy,
5611 .flags = GENL_ADMIN_PERM,
5612 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5613 NL80211_FLAG_NEED_RTNL,
5616 .cmd = NL80211_CMD_SET_MPATH,
5617 .doit = nl80211_set_mpath,
5618 .policy = nl80211_policy,
5619 .flags = GENL_ADMIN_PERM,
5620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5621 NL80211_FLAG_NEED_RTNL,
5624 .cmd = NL80211_CMD_NEW_MPATH,
5625 .doit = nl80211_new_mpath,
5626 .policy = nl80211_policy,
5627 .flags = GENL_ADMIN_PERM,
5628 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5629 NL80211_FLAG_NEED_RTNL,
5632 .cmd = NL80211_CMD_DEL_MPATH,
5633 .doit = nl80211_del_mpath,
5634 .policy = nl80211_policy,
5635 .flags = GENL_ADMIN_PERM,
5636 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5637 NL80211_FLAG_NEED_RTNL,
5640 .cmd = NL80211_CMD_SET_BSS,
5641 .doit = nl80211_set_bss,
5642 .policy = nl80211_policy,
5643 .flags = GENL_ADMIN_PERM,
5644 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5645 NL80211_FLAG_NEED_RTNL,
5648 .cmd = NL80211_CMD_GET_REG,
5649 .doit = nl80211_get_reg,
5650 .policy = nl80211_policy,
5651 /* can be retrieved by unprivileged users */
5654 .cmd = NL80211_CMD_SET_REG,
5655 .doit = nl80211_set_reg,
5656 .policy = nl80211_policy,
5657 .flags = GENL_ADMIN_PERM,
5660 .cmd = NL80211_CMD_REQ_SET_REG,
5661 .doit = nl80211_req_set_reg,
5662 .policy = nl80211_policy,
5663 .flags = GENL_ADMIN_PERM,
5666 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5667 .doit = nl80211_get_mesh_config,
5668 .policy = nl80211_policy,
5669 /* can be retrieved by unprivileged users */
5670 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5671 NL80211_FLAG_NEED_RTNL,
5674 .cmd = NL80211_CMD_SET_MESH_CONFIG,
5675 .doit = nl80211_update_mesh_config,
5676 .policy = nl80211_policy,
5677 .flags = GENL_ADMIN_PERM,
5678 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5679 NL80211_FLAG_NEED_RTNL,
5682 .cmd = NL80211_CMD_TRIGGER_SCAN,
5683 .doit = nl80211_trigger_scan,
5684 .policy = nl80211_policy,
5685 .flags = GENL_ADMIN_PERM,
5686 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5687 NL80211_FLAG_NEED_RTNL,
5690 .cmd = NL80211_CMD_GET_SCAN,
5691 .policy = nl80211_policy,
5692 .dumpit = nl80211_dump_scan,
5695 .cmd = NL80211_CMD_START_SCHED_SCAN,
5696 .doit = nl80211_start_sched_scan,
5697 .policy = nl80211_policy,
5698 .flags = GENL_ADMIN_PERM,
5699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5700 NL80211_FLAG_NEED_RTNL,
5703 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
5704 .doit = nl80211_stop_sched_scan,
5705 .policy = nl80211_policy,
5706 .flags = GENL_ADMIN_PERM,
5707 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5708 NL80211_FLAG_NEED_RTNL,
5711 .cmd = NL80211_CMD_AUTHENTICATE,
5712 .doit = nl80211_authenticate,
5713 .policy = nl80211_policy,
5714 .flags = GENL_ADMIN_PERM,
5715 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5716 NL80211_FLAG_NEED_RTNL,
5719 .cmd = NL80211_CMD_ASSOCIATE,
5720 .doit = nl80211_associate,
5721 .policy = nl80211_policy,
5722 .flags = GENL_ADMIN_PERM,
5723 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5724 NL80211_FLAG_NEED_RTNL,
5727 .cmd = NL80211_CMD_DEAUTHENTICATE,
5728 .doit = nl80211_deauthenticate,
5729 .policy = nl80211_policy,
5730 .flags = GENL_ADMIN_PERM,
5731 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5732 NL80211_FLAG_NEED_RTNL,
5735 .cmd = NL80211_CMD_DISASSOCIATE,
5736 .doit = nl80211_disassociate,
5737 .policy = nl80211_policy,
5738 .flags = GENL_ADMIN_PERM,
5739 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5740 NL80211_FLAG_NEED_RTNL,
5743 .cmd = NL80211_CMD_JOIN_IBSS,
5744 .doit = nl80211_join_ibss,
5745 .policy = nl80211_policy,
5746 .flags = GENL_ADMIN_PERM,
5747 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5748 NL80211_FLAG_NEED_RTNL,
5751 .cmd = NL80211_CMD_LEAVE_IBSS,
5752 .doit = nl80211_leave_ibss,
5753 .policy = nl80211_policy,
5754 .flags = GENL_ADMIN_PERM,
5755 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5756 NL80211_FLAG_NEED_RTNL,
5758 #ifdef CONFIG_NL80211_TESTMODE
5760 .cmd = NL80211_CMD_TESTMODE,
5761 .doit = nl80211_testmode_do,
5762 .dumpit = nl80211_testmode_dump,
5763 .policy = nl80211_policy,
5764 .flags = GENL_ADMIN_PERM,
5765 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5766 NL80211_FLAG_NEED_RTNL,
5770 .cmd = NL80211_CMD_CONNECT,
5771 .doit = nl80211_connect,
5772 .policy = nl80211_policy,
5773 .flags = GENL_ADMIN_PERM,
5774 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5775 NL80211_FLAG_NEED_RTNL,
5778 .cmd = NL80211_CMD_DISCONNECT,
5779 .doit = nl80211_disconnect,
5780 .policy = nl80211_policy,
5781 .flags = GENL_ADMIN_PERM,
5782 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5783 NL80211_FLAG_NEED_RTNL,
5786 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5787 .doit = nl80211_wiphy_netns,
5788 .policy = nl80211_policy,
5789 .flags = GENL_ADMIN_PERM,
5790 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5791 NL80211_FLAG_NEED_RTNL,
5794 .cmd = NL80211_CMD_GET_SURVEY,
5795 .policy = nl80211_policy,
5796 .dumpit = nl80211_dump_survey,
5799 .cmd = NL80211_CMD_SET_PMKSA,
5800 .doit = nl80211_setdel_pmksa,
5801 .policy = nl80211_policy,
5802 .flags = GENL_ADMIN_PERM,
5803 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5804 NL80211_FLAG_NEED_RTNL,
5807 .cmd = NL80211_CMD_DEL_PMKSA,
5808 .doit = nl80211_setdel_pmksa,
5809 .policy = nl80211_policy,
5810 .flags = GENL_ADMIN_PERM,
5811 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5812 NL80211_FLAG_NEED_RTNL,
5815 .cmd = NL80211_CMD_FLUSH_PMKSA,
5816 .doit = nl80211_flush_pmksa,
5817 .policy = nl80211_policy,
5818 .flags = GENL_ADMIN_PERM,
5819 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5820 NL80211_FLAG_NEED_RTNL,
5823 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5824 .doit = nl80211_remain_on_channel,
5825 .policy = nl80211_policy,
5826 .flags = GENL_ADMIN_PERM,
5827 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5828 NL80211_FLAG_NEED_RTNL,
5831 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5832 .doit = nl80211_cancel_remain_on_channel,
5833 .policy = nl80211_policy,
5834 .flags = GENL_ADMIN_PERM,
5835 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5836 NL80211_FLAG_NEED_RTNL,
5839 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5840 .doit = nl80211_set_tx_bitrate_mask,
5841 .policy = nl80211_policy,
5842 .flags = GENL_ADMIN_PERM,
5843 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5844 NL80211_FLAG_NEED_RTNL,
5847 .cmd = NL80211_CMD_REGISTER_FRAME,
5848 .doit = nl80211_register_mgmt,
5849 .policy = nl80211_policy,
5850 .flags = GENL_ADMIN_PERM,
5851 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5852 NL80211_FLAG_NEED_RTNL,
5855 .cmd = NL80211_CMD_FRAME,
5856 .doit = nl80211_tx_mgmt,
5857 .policy = nl80211_policy,
5858 .flags = GENL_ADMIN_PERM,
5859 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5860 NL80211_FLAG_NEED_RTNL,
5863 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
5864 .doit = nl80211_tx_mgmt_cancel_wait,
5865 .policy = nl80211_policy,
5866 .flags = GENL_ADMIN_PERM,
5867 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5868 NL80211_FLAG_NEED_RTNL,
5871 .cmd = NL80211_CMD_SET_POWER_SAVE,
5872 .doit = nl80211_set_power_save,
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_GET_POWER_SAVE,
5880 .doit = nl80211_get_power_save,
5881 .policy = nl80211_policy,
5882 /* can be retrieved by unprivileged users */
5883 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5884 NL80211_FLAG_NEED_RTNL,
5887 .cmd = NL80211_CMD_SET_CQM,
5888 .doit = nl80211_set_cqm,
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_SET_CHANNEL,
5896 .doit = nl80211_set_channel,
5897 .policy = nl80211_policy,
5898 .flags = GENL_ADMIN_PERM,
5899 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5900 NL80211_FLAG_NEED_RTNL,
5903 .cmd = NL80211_CMD_SET_WDS_PEER,
5904 .doit = nl80211_set_wds_peer,
5905 .policy = nl80211_policy,
5906 .flags = GENL_ADMIN_PERM,
5907 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5908 NL80211_FLAG_NEED_RTNL,
5911 .cmd = NL80211_CMD_JOIN_MESH,
5912 .doit = nl80211_join_mesh,
5913 .policy = nl80211_policy,
5914 .flags = GENL_ADMIN_PERM,
5915 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5916 NL80211_FLAG_NEED_RTNL,
5919 .cmd = NL80211_CMD_LEAVE_MESH,
5920 .doit = nl80211_leave_mesh,
5921 .policy = nl80211_policy,
5922 .flags = GENL_ADMIN_PERM,
5923 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5924 NL80211_FLAG_NEED_RTNL,
5927 .cmd = NL80211_CMD_GET_WOWLAN,
5928 .doit = nl80211_get_wowlan,
5929 .policy = nl80211_policy,
5930 /* can be retrieved by unprivileged users */
5931 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5932 NL80211_FLAG_NEED_RTNL,
5935 .cmd = NL80211_CMD_SET_WOWLAN,
5936 .doit = nl80211_set_wowlan,
5937 .policy = nl80211_policy,
5938 .flags = GENL_ADMIN_PERM,
5939 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5940 NL80211_FLAG_NEED_RTNL,
5944 static struct genl_multicast_group nl80211_mlme_mcgrp = {
5948 /* multicast groups */
5949 static struct genl_multicast_group nl80211_config_mcgrp = {
5952 static struct genl_multicast_group nl80211_scan_mcgrp = {
5955 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5956 .name = "regulatory",
5959 /* notification functions */
5961 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5963 struct sk_buff *msg;
5965 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5969 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5974 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5975 nl80211_config_mcgrp.id, GFP_KERNEL);
5978 static int nl80211_add_scan_req(struct sk_buff *msg,
5979 struct cfg80211_registered_device *rdev)
5981 struct cfg80211_scan_request *req = rdev->scan_req;
5982 struct nlattr *nest;
5985 ASSERT_RDEV_LOCK(rdev);
5990 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5992 goto nla_put_failure;
5993 for (i = 0; i < req->n_ssids; i++)
5994 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5995 nla_nest_end(msg, nest);
5997 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5999 goto nla_put_failure;
6000 for (i = 0; i < req->n_channels; i++)
6001 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6002 nla_nest_end(msg, nest);
6005 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6012 static int nl80211_send_scan_msg(struct sk_buff *msg,
6013 struct cfg80211_registered_device *rdev,
6014 struct net_device *netdev,
6015 u32 pid, u32 seq, int flags,
6020 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6024 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6025 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6027 /* ignore errors and send incomplete event anyway */
6028 nl80211_add_scan_req(msg, rdev);
6030 return genlmsg_end(msg, hdr);
6033 genlmsg_cancel(msg, hdr);
6038 nl80211_send_sched_scan_msg(struct sk_buff *msg,
6039 struct cfg80211_registered_device *rdev,
6040 struct net_device *netdev,
6041 u32 pid, u32 seq, int flags, u32 cmd)
6045 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6049 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6052 return genlmsg_end(msg, hdr);
6055 genlmsg_cancel(msg, hdr);
6059 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6060 struct net_device *netdev)
6062 struct sk_buff *msg;
6064 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6068 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6069 NL80211_CMD_TRIGGER_SCAN) < 0) {
6074 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6075 nl80211_scan_mcgrp.id, GFP_KERNEL);
6078 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6079 struct net_device *netdev)
6081 struct sk_buff *msg;
6083 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6087 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6088 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
6093 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6094 nl80211_scan_mcgrp.id, GFP_KERNEL);
6097 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6098 struct net_device *netdev)
6100 struct sk_buff *msg;
6102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6106 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6107 NL80211_CMD_SCAN_ABORTED) < 0) {
6112 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6113 nl80211_scan_mcgrp.id, GFP_KERNEL);
6116 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6117 struct net_device *netdev)
6119 struct sk_buff *msg;
6121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6125 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6126 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6131 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6132 nl80211_scan_mcgrp.id, GFP_KERNEL);
6135 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6136 struct net_device *netdev, u32 cmd)
6138 struct sk_buff *msg;
6140 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6144 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6149 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6150 nl80211_scan_mcgrp.id, GFP_KERNEL);
6154 * This can happen on global regulatory changes or device specific settings
6155 * based on custom world regulatory domains.
6157 void nl80211_send_reg_change_event(struct regulatory_request *request)
6159 struct sk_buff *msg;
6162 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6166 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6172 /* Userspace can always count this one always being set */
6173 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6175 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6176 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6177 NL80211_REGDOM_TYPE_WORLD);
6178 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6179 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6180 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6181 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6183 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6184 NL80211_REGDOM_TYPE_INTERSECTION);
6186 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6187 NL80211_REGDOM_TYPE_COUNTRY);
6188 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6191 if (wiphy_idx_valid(request->wiphy_idx))
6192 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6194 if (genlmsg_end(msg, hdr) < 0) {
6200 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6207 genlmsg_cancel(msg, hdr);
6211 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6212 struct net_device *netdev,
6213 const u8 *buf, size_t len,
6214 enum nl80211_commands cmd, gfp_t gfp)
6216 struct sk_buff *msg;
6219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6223 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6229 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6230 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6231 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6233 if (genlmsg_end(msg, hdr) < 0) {
6238 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6239 nl80211_mlme_mcgrp.id, gfp);
6243 genlmsg_cancel(msg, hdr);
6247 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
6248 struct net_device *netdev, const u8 *buf,
6249 size_t len, gfp_t gfp)
6251 nl80211_send_mlme_event(rdev, netdev, buf, len,
6252 NL80211_CMD_AUTHENTICATE, gfp);
6255 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6256 struct net_device *netdev, const u8 *buf,
6257 size_t len, gfp_t gfp)
6259 nl80211_send_mlme_event(rdev, netdev, buf, len,
6260 NL80211_CMD_ASSOCIATE, gfp);
6263 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
6264 struct net_device *netdev, const u8 *buf,
6265 size_t len, gfp_t gfp)
6267 nl80211_send_mlme_event(rdev, netdev, buf, len,
6268 NL80211_CMD_DEAUTHENTICATE, gfp);
6271 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6272 struct net_device *netdev, const u8 *buf,
6273 size_t len, gfp_t gfp)
6275 nl80211_send_mlme_event(rdev, netdev, buf, len,
6276 NL80211_CMD_DISASSOCIATE, gfp);
6279 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6280 struct net_device *netdev, const u8 *buf,
6281 size_t len, gfp_t gfp)
6283 nl80211_send_mlme_event(rdev, netdev, buf, len,
6284 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6287 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6288 struct net_device *netdev, const u8 *buf,
6289 size_t len, gfp_t gfp)
6291 nl80211_send_mlme_event(rdev, netdev, buf, len,
6292 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6295 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6296 struct net_device *netdev, int cmd,
6297 const u8 *addr, gfp_t gfp)
6299 struct sk_buff *msg;
6302 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6306 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6312 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6313 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6314 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6315 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6317 if (genlmsg_end(msg, hdr) < 0) {
6322 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6323 nl80211_mlme_mcgrp.id, gfp);
6327 genlmsg_cancel(msg, hdr);
6331 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
6332 struct net_device *netdev, const u8 *addr,
6335 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
6339 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
6340 struct net_device *netdev, const u8 *addr,
6343 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6347 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6348 struct net_device *netdev, const u8 *bssid,
6349 const u8 *req_ie, size_t req_ie_len,
6350 const u8 *resp_ie, size_t resp_ie_len,
6351 u16 status, gfp_t gfp)
6353 struct sk_buff *msg;
6356 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6360 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6366 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6367 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6369 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6370 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6372 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6374 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6376 if (genlmsg_end(msg, hdr) < 0) {
6381 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6382 nl80211_mlme_mcgrp.id, gfp);
6386 genlmsg_cancel(msg, hdr);
6391 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6392 struct net_device *netdev, const u8 *bssid,
6393 const u8 *req_ie, size_t req_ie_len,
6394 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6396 struct sk_buff *msg;
6399 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6403 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6409 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6410 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6411 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6413 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6415 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6417 if (genlmsg_end(msg, hdr) < 0) {
6422 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6423 nl80211_mlme_mcgrp.id, gfp);
6427 genlmsg_cancel(msg, hdr);
6432 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6433 struct net_device *netdev, u16 reason,
6434 const u8 *ie, size_t ie_len, bool from_ap)
6436 struct sk_buff *msg;
6439 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6443 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6449 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6450 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6451 if (from_ap && reason)
6452 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6454 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6456 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6458 if (genlmsg_end(msg, hdr) < 0) {
6463 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6464 nl80211_mlme_mcgrp.id, GFP_KERNEL);
6468 genlmsg_cancel(msg, hdr);
6473 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6474 struct net_device *netdev, const u8 *bssid,
6477 struct sk_buff *msg;
6480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6484 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6490 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6491 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6492 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6494 if (genlmsg_end(msg, hdr) < 0) {
6499 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6500 nl80211_mlme_mcgrp.id, gfp);
6504 genlmsg_cancel(msg, hdr);
6508 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6509 struct net_device *netdev,
6510 const u8 *macaddr, const u8* ie, u8 ie_len,
6513 struct sk_buff *msg;
6516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6520 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6526 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6527 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6528 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6530 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6532 if (genlmsg_end(msg, hdr) < 0) {
6537 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6538 nl80211_mlme_mcgrp.id, gfp);
6542 genlmsg_cancel(msg, hdr);
6546 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6547 struct net_device *netdev, const u8 *addr,
6548 enum nl80211_key_type key_type, int key_id,
6549 const u8 *tsc, gfp_t gfp)
6551 struct sk_buff *msg;
6554 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6558 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
6564 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6565 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6567 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6568 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
6570 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
6572 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
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_beacon_hint_event(struct wiphy *wiphy,
6589 struct ieee80211_channel *channel_before,
6590 struct ieee80211_channel *channel_after)
6592 struct sk_buff *msg;
6594 struct nlattr *nl_freq;
6596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6600 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
6607 * Since we are applying the beacon hint to a wiphy we know its
6608 * wiphy_idx is valid
6610 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
6613 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
6615 goto nla_put_failure;
6616 if (nl80211_msg_put_channel(msg, channel_before))
6617 goto nla_put_failure;
6618 nla_nest_end(msg, nl_freq);
6621 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
6623 goto nla_put_failure;
6624 if (nl80211_msg_put_channel(msg, channel_after))
6625 goto nla_put_failure;
6626 nla_nest_end(msg, nl_freq);
6628 if (genlmsg_end(msg, hdr) < 0) {
6634 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6641 genlmsg_cancel(msg, hdr);
6645 static void nl80211_send_remain_on_chan_event(
6646 int cmd, struct cfg80211_registered_device *rdev,
6647 struct net_device *netdev, u64 cookie,
6648 struct ieee80211_channel *chan,
6649 enum nl80211_channel_type channel_type,
6650 unsigned int duration, gfp_t gfp)
6652 struct sk_buff *msg;
6655 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6659 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6665 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6666 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6667 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
6668 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
6669 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6671 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
6672 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6674 if (genlmsg_end(msg, hdr) < 0) {
6679 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6680 nl80211_mlme_mcgrp.id, gfp);
6684 genlmsg_cancel(msg, hdr);
6688 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
6689 struct net_device *netdev, u64 cookie,
6690 struct ieee80211_channel *chan,
6691 enum nl80211_channel_type channel_type,
6692 unsigned int duration, gfp_t gfp)
6694 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
6695 rdev, netdev, cookie, chan,
6696 channel_type, duration, gfp);
6699 void nl80211_send_remain_on_channel_cancel(
6700 struct cfg80211_registered_device *rdev, struct net_device *netdev,
6701 u64 cookie, struct ieee80211_channel *chan,
6702 enum nl80211_channel_type channel_type, gfp_t gfp)
6704 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6705 rdev, netdev, cookie, chan,
6706 channel_type, 0, gfp);
6709 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
6710 struct net_device *dev, const u8 *mac_addr,
6711 struct station_info *sinfo, gfp_t gfp)
6713 struct sk_buff *msg;
6715 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6719 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
6724 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6725 nl80211_mlme_mcgrp.id, gfp);
6728 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
6729 struct net_device *dev, const u8 *mac_addr,
6732 struct sk_buff *msg;
6735 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6739 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
6745 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
6746 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
6748 if (genlmsg_end(msg, hdr) < 0) {
6753 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6754 nl80211_mlme_mcgrp.id, gfp);
6758 genlmsg_cancel(msg, hdr);
6762 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
6763 struct net_device *netdev, u32 nlpid,
6764 int freq, const u8 *buf, size_t len, gfp_t gfp)
6766 struct sk_buff *msg;
6770 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6774 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
6780 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6781 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6782 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6783 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6785 err = genlmsg_end(msg, hdr);
6791 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
6797 genlmsg_cancel(msg, hdr);
6802 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
6803 struct net_device *netdev, u64 cookie,
6804 const u8 *buf, size_t len, bool ack,
6807 struct sk_buff *msg;
6810 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6814 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
6820 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6821 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6822 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6823 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6825 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
6827 if (genlmsg_end(msg, hdr) < 0) {
6832 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
6836 genlmsg_cancel(msg, hdr);
6841 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
6842 struct net_device *netdev,
6843 enum nl80211_cqm_rssi_threshold_event rssi_event,
6846 struct sk_buff *msg;
6847 struct nlattr *pinfoattr;
6850 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6854 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6860 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6861 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6863 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6865 goto nla_put_failure;
6867 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
6870 nla_nest_end(msg, pinfoattr);
6872 if (genlmsg_end(msg, hdr) < 0) {
6877 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6878 nl80211_mlme_mcgrp.id, gfp);
6882 genlmsg_cancel(msg, hdr);
6887 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
6888 struct net_device *netdev, const u8 *peer,
6889 u32 num_packets, gfp_t gfp)
6891 struct sk_buff *msg;
6892 struct nlattr *pinfoattr;
6895 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6899 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6905 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6906 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6907 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
6909 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6911 goto nla_put_failure;
6913 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
6915 nla_nest_end(msg, pinfoattr);
6917 if (genlmsg_end(msg, hdr) < 0) {
6922 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6923 nl80211_mlme_mcgrp.id, gfp);
6927 genlmsg_cancel(msg, hdr);
6931 static int nl80211_netlink_notify(struct notifier_block * nb,
6932 unsigned long state,
6935 struct netlink_notify *notify = _notify;
6936 struct cfg80211_registered_device *rdev;
6937 struct wireless_dev *wdev;
6939 if (state != NETLINK_URELEASE)
6944 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
6945 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
6946 cfg80211_mlme_unregister_socket(wdev, notify->pid);
6953 static struct notifier_block nl80211_netlink_notifier = {
6954 .notifier_call = nl80211_netlink_notify,
6957 /* initialisation/exit functions */
6959 int nl80211_init(void)
6963 err = genl_register_family_with_ops(&nl80211_fam,
6964 nl80211_ops, ARRAY_SIZE(nl80211_ops));
6968 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
6972 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
6976 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
6980 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
6984 #ifdef CONFIG_NL80211_TESTMODE
6985 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
6990 err = netlink_register_notifier(&nl80211_netlink_notifier);
6996 genl_unregister_family(&nl80211_fam);
7000 void nl80211_exit(void)
7002 netlink_unregister_notifier(&nl80211_netlink_notifier);
7003 genl_unregister_family(&nl80211_fam);