2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/list.h>
11 #include <linux/if_ether.h>
12 #include <linux/ieee80211.h>
13 #include <linux/nl80211.h>
14 #include <linux/rtnetlink.h>
15 #include <linux/netlink.h>
16 #include <linux/etherdevice.h>
17 #include <net/genetlink.h>
18 #include <net/cfg80211.h>
23 /* the netlink family */
24 static struct genl_family nl80211_fam = {
25 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
26 .name = "nl80211", /* have users key off the name instead */
27 .hdrsize = 0, /* no private header */
28 .version = 1, /* no particular meaning now */
29 .maxattr = NL80211_ATTR_MAX,
32 /* internal helper: get rdev and dev */
33 static int get_rdev_dev_by_info_ifindex(struct nlattr **attrs,
34 struct cfg80211_registered_device **rdev,
35 struct net_device **dev)
39 if (!attrs[NL80211_ATTR_IFINDEX])
42 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
43 *dev = dev_get_by_index(&init_net, ifindex);
47 *rdev = cfg80211_get_dev_from_ifindex(ifindex);
50 return PTR_ERR(*rdev);
56 /* policy for the attributes */
57 static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
58 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
59 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
61 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
62 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
63 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
64 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
65 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
66 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
67 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
69 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
70 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
71 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
73 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
74 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
76 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
77 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
78 .len = WLAN_MAX_KEY_LEN },
79 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
80 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
81 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
82 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
84 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
85 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
86 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
87 .len = IEEE80211_MAX_DATA_LEN },
88 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
89 .len = IEEE80211_MAX_DATA_LEN },
90 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
91 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
92 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
93 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
94 .len = NL80211_MAX_SUPP_RATES },
95 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
96 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
97 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
98 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
99 .len = IEEE80211_MAX_MESH_ID_LEN },
100 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
102 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
103 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
105 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
106 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
107 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
108 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
109 .len = NL80211_MAX_SUPP_RATES },
111 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
113 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
114 .len = NL80211_HT_CAPABILITY_LEN },
116 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
117 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
118 .len = IEEE80211_MAX_DATA_LEN },
119 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
120 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
122 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
123 .len = IEEE80211_MAX_SSID_LEN },
124 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
125 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
126 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
127 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
128 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
129 [NL80211_ATTR_STA_FLAGS2] = {
130 .len = sizeof(struct nl80211_sta_flag_update),
132 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
133 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
134 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
135 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
138 /* policy for the attributes */
139 static struct nla_policy
140 nl80211_key_policy[NL80211_KEY_MAX + 1] __read_mostly = {
141 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
142 [NL80211_KEY_IDX] = { .type = NLA_U8 },
143 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
144 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
145 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
146 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
150 static bool is_valid_ie_attr(const struct nlattr *attr)
158 pos = nla_data(attr);
179 /* message building helper */
180 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
183 /* since there is no private header just add the generic one */
184 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
187 static int nl80211_msg_put_channel(struct sk_buff *msg,
188 struct ieee80211_channel *chan)
190 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
193 if (chan->flags & IEEE80211_CHAN_DISABLED)
194 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
195 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
196 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
197 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
198 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
199 if (chan->flags & IEEE80211_CHAN_RADAR)
200 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
202 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
203 DBM_TO_MBM(chan->max_power));
211 /* netlink command implementations */
219 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
221 struct nlattr *tb[NL80211_KEY_MAX + 1];
222 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
227 k->def = !!tb[NL80211_KEY_DEFAULT];
228 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
230 if (tb[NL80211_KEY_IDX])
231 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
233 if (tb[NL80211_KEY_DATA]) {
234 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
235 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
238 if (tb[NL80211_KEY_SEQ]) {
239 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
240 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
243 if (tb[NL80211_KEY_CIPHER])
244 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
249 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
251 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
252 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
253 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
256 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
257 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
258 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
261 if (info->attrs[NL80211_ATTR_KEY_IDX])
262 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
264 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
265 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
267 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
268 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
273 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
277 memset(k, 0, sizeof(*k));
280 if (info->attrs[NL80211_ATTR_KEY])
281 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
283 err = nl80211_parse_key_old(info, k);
288 if (k->def && k->defmgmt)
293 if (k->idx < 4 || k->idx > 5)
296 if (k->idx < 0 || k->idx > 3)
299 if (k->idx < 0 || k->idx > 5)
307 static struct cfg80211_cached_keys *
308 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
311 struct key_parse parse;
313 struct cfg80211_cached_keys *result;
314 int rem, err, def = 0;
316 result = kzalloc(sizeof(*result), GFP_KERNEL);
318 return ERR_PTR(-ENOMEM);
321 result->defmgmt = -1;
323 nla_for_each_nested(key, keys, rem) {
324 memset(&parse, 0, sizeof(parse));
327 err = nl80211_parse_key_new(key, &parse);
333 if (parse.idx < 0 || parse.idx > 4)
339 result->def = parse.idx;
340 } else if (parse.defmgmt)
342 err = cfg80211_validate_key_settings(rdev, &parse.p,
346 result->params[parse.idx].cipher = parse.p.cipher;
347 result->params[parse.idx].key_len = parse.p.key_len;
348 result->params[parse.idx].key = result->data[parse.idx];
349 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
358 static int nl80211_key_allowed(struct wireless_dev *wdev)
360 ASSERT_WDEV_LOCK(wdev);
362 if (!netif_running(wdev->netdev))
365 switch (wdev->iftype) {
366 case NL80211_IFTYPE_AP:
367 case NL80211_IFTYPE_AP_VLAN:
369 case NL80211_IFTYPE_ADHOC:
370 if (!wdev->current_bss)
373 case NL80211_IFTYPE_STATION:
374 if (wdev->sme_state != CFG80211_SME_CONNECTED)
384 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
385 struct cfg80211_registered_device *dev)
388 struct nlattr *nl_bands, *nl_band;
389 struct nlattr *nl_freqs, *nl_freq;
390 struct nlattr *nl_rates, *nl_rate;
391 struct nlattr *nl_modes;
392 struct nlattr *nl_cmds;
393 enum ieee80211_band band;
394 struct ieee80211_channel *chan;
395 struct ieee80211_rate *rate;
397 u16 ifmodes = dev->wiphy.interface_modes;
399 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
403 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
404 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
406 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
407 dev->wiphy.retry_short);
408 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
409 dev->wiphy.retry_long);
410 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
411 dev->wiphy.frag_threshold);
412 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
413 dev->wiphy.rts_threshold);
415 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
416 dev->wiphy.max_scan_ssids);
417 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
418 dev->wiphy.max_scan_ie_len);
420 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
421 sizeof(u32) * dev->wiphy.n_cipher_suites,
422 dev->wiphy.cipher_suites);
424 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
426 goto nla_put_failure;
431 NLA_PUT_FLAG(msg, i);
436 nla_nest_end(msg, nl_modes);
438 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
440 goto nla_put_failure;
442 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
443 if (!dev->wiphy.bands[band])
446 nl_band = nla_nest_start(msg, band);
448 goto nla_put_failure;
451 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
452 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
453 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
454 &dev->wiphy.bands[band]->ht_cap.mcs);
455 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
456 dev->wiphy.bands[band]->ht_cap.cap);
457 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
458 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
459 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
460 dev->wiphy.bands[band]->ht_cap.ampdu_density);
463 /* add frequencies */
464 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
466 goto nla_put_failure;
468 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
469 nl_freq = nla_nest_start(msg, i);
471 goto nla_put_failure;
473 chan = &dev->wiphy.bands[band]->channels[i];
475 if (nl80211_msg_put_channel(msg, chan))
476 goto nla_put_failure;
478 nla_nest_end(msg, nl_freq);
481 nla_nest_end(msg, nl_freqs);
484 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
486 goto nla_put_failure;
488 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
489 nl_rate = nla_nest_start(msg, i);
491 goto nla_put_failure;
493 rate = &dev->wiphy.bands[band]->bitrates[i];
494 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
496 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
498 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
500 nla_nest_end(msg, nl_rate);
503 nla_nest_end(msg, nl_rates);
505 nla_nest_end(msg, nl_band);
507 nla_nest_end(msg, nl_bands);
509 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
511 goto nla_put_failure;
516 if (dev->ops->op) { \
518 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
522 CMD(add_virtual_intf, NEW_INTERFACE);
523 CMD(change_virtual_intf, SET_INTERFACE);
524 CMD(add_key, NEW_KEY);
525 CMD(add_beacon, NEW_BEACON);
526 CMD(add_station, NEW_STATION);
527 CMD(add_mpath, NEW_MPATH);
528 CMD(set_mesh_params, SET_MESH_PARAMS);
529 CMD(change_bss, SET_BSS);
530 CMD(auth, AUTHENTICATE);
531 CMD(assoc, ASSOCIATE);
532 CMD(deauth, DEAUTHENTICATE);
533 CMD(disassoc, DISASSOCIATE);
534 CMD(join_ibss, JOIN_IBSS);
538 if (dev->ops->connect || dev->ops->auth) {
540 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
543 if (dev->ops->disconnect || dev->ops->deauth) {
545 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
548 nla_nest_end(msg, nl_cmds);
550 return genlmsg_end(msg, hdr);
553 genlmsg_cancel(msg, hdr);
557 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
560 int start = cb->args[0];
561 struct cfg80211_registered_device *dev;
563 mutex_lock(&cfg80211_mutex);
564 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
567 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
568 cb->nlh->nlmsg_seq, NLM_F_MULTI,
574 mutex_unlock(&cfg80211_mutex);
581 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
584 struct cfg80211_registered_device *dev;
586 dev = cfg80211_get_dev_from_info(info);
590 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
594 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
597 cfg80211_unlock_rdev(dev);
599 return genlmsg_reply(msg, info);
604 cfg80211_unlock_rdev(dev);
608 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
609 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
610 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
611 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
612 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
613 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
616 static int parse_txq_params(struct nlattr *tb[],
617 struct ieee80211_txq_params *txq_params)
619 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
620 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
621 !tb[NL80211_TXQ_ATTR_AIFS])
624 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
625 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
626 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
627 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
628 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
633 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
635 struct cfg80211_registered_device *rdev;
636 int result = 0, rem_txq_params = 0;
637 struct nlattr *nl_txq_params;
639 u8 retry_short = 0, retry_long = 0;
640 u32 frag_threshold = 0, rts_threshold = 0;
644 mutex_lock(&cfg80211_mutex);
646 rdev = __cfg80211_rdev_from_info(info);
648 mutex_unlock(&cfg80211_mutex);
649 result = PTR_ERR(rdev);
653 mutex_lock(&rdev->mtx);
655 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
656 result = cfg80211_dev_rename(
657 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
659 mutex_unlock(&cfg80211_mutex);
664 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
665 struct ieee80211_txq_params txq_params;
666 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
668 if (!rdev->ops->set_txq_params) {
669 result = -EOPNOTSUPP;
673 nla_for_each_nested(nl_txq_params,
674 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
676 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
677 nla_data(nl_txq_params),
678 nla_len(nl_txq_params),
680 result = parse_txq_params(tb, &txq_params);
684 result = rdev->ops->set_txq_params(&rdev->wiphy,
691 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
692 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
693 struct ieee80211_channel *chan;
694 struct ieee80211_sta_ht_cap *ht_cap;
697 if (!rdev->ops->set_channel) {
698 result = -EOPNOTSUPP;
704 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
705 channel_type = nla_get_u32(info->attrs[
706 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
707 if (channel_type != NL80211_CHAN_NO_HT &&
708 channel_type != NL80211_CHAN_HT20 &&
709 channel_type != NL80211_CHAN_HT40PLUS &&
710 channel_type != NL80211_CHAN_HT40MINUS)
714 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
715 chan = ieee80211_get_channel(&rdev->wiphy, freq);
717 /* Primary channel not allowed */
718 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
721 if (channel_type == NL80211_CHAN_HT40MINUS &&
722 (chan->flags & IEEE80211_CHAN_NO_HT40MINUS))
724 else if (channel_type == NL80211_CHAN_HT40PLUS &&
725 (chan->flags & IEEE80211_CHAN_NO_HT40PLUS))
729 * At this point we know if that if HT40 was requested
730 * we are allowed to use it and the extension channel
734 ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
736 /* no HT capabilities or intolerant */
737 if (channel_type != NL80211_CHAN_NO_HT) {
738 if (!ht_cap->ht_supported)
740 if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
741 (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
745 result = rdev->ops->set_channel(&rdev->wiphy, chan,
753 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
754 retry_short = nla_get_u8(
755 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
756 if (retry_short == 0) {
760 changed |= WIPHY_PARAM_RETRY_SHORT;
763 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
764 retry_long = nla_get_u8(
765 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
766 if (retry_long == 0) {
770 changed |= WIPHY_PARAM_RETRY_LONG;
773 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
774 frag_threshold = nla_get_u32(
775 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
776 if (frag_threshold < 256) {
780 if (frag_threshold != (u32) -1) {
782 * Fragments (apart from the last one) are required to
783 * have even length. Make the fragmentation code
784 * simpler by stripping LSB should someone try to use
785 * odd threshold value.
787 frag_threshold &= ~0x1;
789 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
792 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
793 rts_threshold = nla_get_u32(
794 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
795 changed |= WIPHY_PARAM_RTS_THRESHOLD;
799 u8 old_retry_short, old_retry_long;
800 u32 old_frag_threshold, old_rts_threshold;
802 if (!rdev->ops->set_wiphy_params) {
803 result = -EOPNOTSUPP;
807 old_retry_short = rdev->wiphy.retry_short;
808 old_retry_long = rdev->wiphy.retry_long;
809 old_frag_threshold = rdev->wiphy.frag_threshold;
810 old_rts_threshold = rdev->wiphy.rts_threshold;
812 if (changed & WIPHY_PARAM_RETRY_SHORT)
813 rdev->wiphy.retry_short = retry_short;
814 if (changed & WIPHY_PARAM_RETRY_LONG)
815 rdev->wiphy.retry_long = retry_long;
816 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
817 rdev->wiphy.frag_threshold = frag_threshold;
818 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
819 rdev->wiphy.rts_threshold = rts_threshold;
821 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
823 rdev->wiphy.retry_short = old_retry_short;
824 rdev->wiphy.retry_long = old_retry_long;
825 rdev->wiphy.frag_threshold = old_frag_threshold;
826 rdev->wiphy.rts_threshold = old_rts_threshold;
831 mutex_unlock(&rdev->mtx);
838 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
839 struct cfg80211_registered_device *rdev,
840 struct net_device *dev)
844 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
848 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
849 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
850 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
851 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
852 return genlmsg_end(msg, hdr);
855 genlmsg_cancel(msg, hdr);
859 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
863 int wp_start = cb->args[0];
864 int if_start = cb->args[1];
865 struct cfg80211_registered_device *dev;
866 struct wireless_dev *wdev;
868 mutex_lock(&cfg80211_mutex);
869 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
870 if (wp_idx < wp_start) {
876 mutex_lock(&dev->devlist_mtx);
877 list_for_each_entry(wdev, &dev->netdev_list, list) {
878 if (if_idx < if_start) {
882 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
883 cb->nlh->nlmsg_seq, NLM_F_MULTI,
884 dev, wdev->netdev) < 0) {
885 mutex_unlock(&dev->devlist_mtx);
890 mutex_unlock(&dev->devlist_mtx);
895 mutex_unlock(&cfg80211_mutex);
897 cb->args[0] = wp_idx;
898 cb->args[1] = if_idx;
903 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
906 struct cfg80211_registered_device *dev;
907 struct net_device *netdev;
910 err = get_rdev_dev_by_info_ifindex(info->attrs, &dev, &netdev);
914 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
918 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
923 cfg80211_unlock_rdev(dev);
925 return genlmsg_reply(msg, info);
931 cfg80211_unlock_rdev(dev);
935 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
936 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
937 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
938 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
939 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
940 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
943 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
945 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
953 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
954 nla, mntr_flags_policy))
957 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
959 *mntrflags |= (1<<flag);
964 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
966 struct cfg80211_registered_device *rdev;
967 struct vif_params params;
969 enum nl80211_iftype otype, ntype;
970 struct net_device *dev;
971 u32 _flags, *flags = NULL;
974 memset(¶ms, 0, sizeof(params));
978 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
982 otype = ntype = dev->ieee80211_ptr->iftype;
984 if (info->attrs[NL80211_ATTR_IFTYPE]) {
985 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
988 if (ntype > NL80211_IFTYPE_MAX) {
994 if (!rdev->ops->change_virtual_intf ||
995 !(rdev->wiphy.interface_modes & (1 << ntype))) {
1000 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1001 if (ntype != NL80211_IFTYPE_MESH_POINT) {
1005 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1006 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1010 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1011 if (ntype != NL80211_IFTYPE_MONITOR) {
1015 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1025 err = rdev->ops->change_virtual_intf(&rdev->wiphy, dev,
1026 ntype, flags, ¶ms);
1030 WARN_ON(!err && dev->ieee80211_ptr->iftype != ntype);
1032 if (!err && (ntype != otype)) {
1033 if (otype == NL80211_IFTYPE_ADHOC)
1034 cfg80211_clear_ibss(dev, false);
1039 cfg80211_unlock_rdev(rdev);
1045 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1047 struct cfg80211_registered_device *rdev;
1048 struct vif_params params;
1050 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1053 memset(¶ms, 0, sizeof(params));
1055 if (!info->attrs[NL80211_ATTR_IFNAME])
1058 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1059 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1060 if (type > NL80211_IFTYPE_MAX)
1066 rdev = cfg80211_get_dev_from_info(info);
1068 err = PTR_ERR(rdev);
1072 if (!rdev->ops->add_virtual_intf ||
1073 !(rdev->wiphy.interface_modes & (1 << type))) {
1078 if (type == NL80211_IFTYPE_MESH_POINT &&
1079 info->attrs[NL80211_ATTR_MESH_ID]) {
1080 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1081 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1084 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1085 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1087 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
1088 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1089 type, err ? NULL : &flags, ¶ms);
1092 cfg80211_unlock_rdev(rdev);
1098 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1100 struct cfg80211_registered_device *rdev;
1102 struct net_device *dev;
1106 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1109 ifindex = dev->ifindex;
1112 if (!rdev->ops->del_virtual_intf) {
1117 err = rdev->ops->del_virtual_intf(&rdev->wiphy, ifindex);
1120 cfg80211_unlock_rdev(rdev);
1126 struct get_key_cookie {
1127 struct sk_buff *msg;
1132 static void get_key_callback(void *c, struct key_params *params)
1135 struct get_key_cookie *cookie = c;
1138 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1139 params->key_len, params->key);
1142 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1143 params->seq_len, params->seq);
1146 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1149 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1151 goto nla_put_failure;
1154 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1155 params->key_len, params->key);
1158 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1159 params->seq_len, params->seq);
1162 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1165 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1167 nla_nest_end(cookie->msg, key);
1174 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1176 struct cfg80211_registered_device *rdev;
1178 struct net_device *dev;
1180 u8 *mac_addr = NULL;
1181 struct get_key_cookie cookie = {
1185 struct sk_buff *msg;
1187 if (info->attrs[NL80211_ATTR_KEY_IDX])
1188 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1193 if (info->attrs[NL80211_ATTR_MAC])
1194 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1198 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1202 if (!rdev->ops->get_key) {
1207 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1213 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1214 NL80211_CMD_NEW_KEY);
1222 cookie.idx = key_idx;
1224 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1225 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1227 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1229 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr,
1230 &cookie, get_key_callback);
1236 goto nla_put_failure;
1238 genlmsg_end(msg, hdr);
1239 err = genlmsg_reply(msg, info);
1247 cfg80211_unlock_rdev(rdev);
1255 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1257 struct cfg80211_registered_device *rdev;
1258 struct key_parse key;
1260 struct net_device *dev;
1261 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1264 err = nl80211_parse_key(info, &key);
1271 /* only support setting default key */
1272 if (!key.def && !key.defmgmt)
1277 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1282 func = rdev->ops->set_default_key;
1284 func = rdev->ops->set_default_mgmt_key;
1291 wdev_lock(dev->ieee80211_ptr);
1292 err = nl80211_key_allowed(dev->ieee80211_ptr);
1294 err = func(&rdev->wiphy, dev, key.idx);
1296 #ifdef CONFIG_WIRELESS_EXT
1298 if (func == rdev->ops->set_default_key)
1299 dev->ieee80211_ptr->wext.default_key = key.idx;
1301 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1304 wdev_unlock(dev->ieee80211_ptr);
1307 cfg80211_unlock_rdev(rdev);
1316 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1318 struct cfg80211_registered_device *rdev;
1320 struct net_device *dev;
1321 struct key_parse key;
1322 u8 *mac_addr = NULL;
1324 err = nl80211_parse_key(info, &key);
1331 if (info->attrs[NL80211_ATTR_MAC])
1332 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1336 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1340 if (!rdev->ops->add_key) {
1345 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) {
1350 wdev_lock(dev->ieee80211_ptr);
1351 err = nl80211_key_allowed(dev->ieee80211_ptr);
1353 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1355 wdev_unlock(dev->ieee80211_ptr);
1358 cfg80211_unlock_rdev(rdev);
1366 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1368 struct cfg80211_registered_device *rdev;
1370 struct net_device *dev;
1371 u8 *mac_addr = NULL;
1372 struct key_parse key;
1374 err = nl80211_parse_key(info, &key);
1378 if (info->attrs[NL80211_ATTR_MAC])
1379 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1383 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1387 if (!rdev->ops->del_key) {
1392 wdev_lock(dev->ieee80211_ptr);
1393 err = nl80211_key_allowed(dev->ieee80211_ptr);
1395 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr);
1397 #ifdef CONFIG_WIRELESS_EXT
1399 if (key.idx == dev->ieee80211_ptr->wext.default_key)
1400 dev->ieee80211_ptr->wext.default_key = -1;
1401 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1402 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1405 wdev_unlock(dev->ieee80211_ptr);
1408 cfg80211_unlock_rdev(rdev);
1417 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1419 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1420 struct beacon_parameters *info);
1421 struct cfg80211_registered_device *rdev;
1423 struct net_device *dev;
1424 struct beacon_parameters params;
1427 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1432 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1436 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1441 switch (info->genlhdr->cmd) {
1442 case NL80211_CMD_NEW_BEACON:
1443 /* these are required for NEW_BEACON */
1444 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1445 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1446 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1451 call = rdev->ops->add_beacon;
1453 case NL80211_CMD_SET_BEACON:
1454 call = rdev->ops->set_beacon;
1467 memset(¶ms, 0, sizeof(params));
1469 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1471 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1475 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1476 params.dtim_period =
1477 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1481 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1482 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1484 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1488 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1489 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1491 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1500 err = call(&rdev->wiphy, dev, ¶ms);
1503 cfg80211_unlock_rdev(rdev);
1511 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1513 struct cfg80211_registered_device *rdev;
1515 struct net_device *dev;
1519 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1523 if (!rdev->ops->del_beacon) {
1528 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1532 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
1535 cfg80211_unlock_rdev(rdev);
1543 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1544 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1545 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1546 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1547 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
1550 static int parse_station_flags(struct genl_info *info,
1551 struct station_parameters *params)
1553 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1558 * Try parsing the new attribute first so userspace
1559 * can specify both for older kernels.
1561 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1563 struct nl80211_sta_flag_update *sta_flags;
1565 sta_flags = nla_data(nla);
1566 params->sta_flags_mask = sta_flags->mask;
1567 params->sta_flags_set = sta_flags->set;
1568 if ((params->sta_flags_mask |
1569 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1574 /* if present, parse the old attribute */
1576 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
1580 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1581 nla, sta_flags_policy))
1584 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1585 params->sta_flags_mask &= ~1;
1587 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1589 params->sta_flags_set |= (1<<flag);
1594 static u16 nl80211_calculate_bitrate(struct rate_info *rate)
1596 int modulation, streams, bitrate;
1598 if (!(rate->flags & RATE_INFO_FLAGS_MCS))
1599 return rate->legacy;
1601 /* the formula below does only work for MCS values smaller than 32 */
1602 if (rate->mcs >= 32)
1605 modulation = rate->mcs & 7;
1606 streams = (rate->mcs >> 3) + 1;
1608 bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ?
1612 bitrate *= (modulation + 1);
1613 else if (modulation == 4)
1614 bitrate *= (modulation + 2);
1616 bitrate *= (modulation + 3);
1620 if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
1621 bitrate = (bitrate / 9) * 10;
1623 /* do NOT round down here */
1624 return (bitrate + 50000) / 100000;
1627 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1628 int flags, struct net_device *dev,
1629 u8 *mac_addr, struct station_info *sinfo)
1632 struct nlattr *sinfoattr, *txrate;
1635 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1639 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1640 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1642 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1644 goto nla_put_failure;
1645 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1646 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1647 sinfo->inactive_time);
1648 if (sinfo->filled & STATION_INFO_RX_BYTES)
1649 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1651 if (sinfo->filled & STATION_INFO_TX_BYTES)
1652 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1654 if (sinfo->filled & STATION_INFO_LLID)
1655 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1657 if (sinfo->filled & STATION_INFO_PLID)
1658 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1660 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1661 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1662 sinfo->plink_state);
1663 if (sinfo->filled & STATION_INFO_SIGNAL)
1664 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1666 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1667 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1669 goto nla_put_failure;
1671 /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */
1672 bitrate = nl80211_calculate_bitrate(&sinfo->txrate);
1674 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1676 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1677 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1679 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1680 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1681 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1682 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1684 nla_nest_end(msg, txrate);
1686 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1687 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1689 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1690 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1692 nla_nest_end(msg, sinfoattr);
1694 return genlmsg_end(msg, hdr);
1697 genlmsg_cancel(msg, hdr);
1701 static int nl80211_dump_station(struct sk_buff *skb,
1702 struct netlink_callback *cb)
1704 struct station_info sinfo;
1705 struct cfg80211_registered_device *dev;
1706 struct net_device *netdev;
1707 u8 mac_addr[ETH_ALEN];
1708 int ifidx = cb->args[0];
1709 int sta_idx = cb->args[1];
1713 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1714 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1719 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1722 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1729 netdev = __dev_get_by_index(&init_net, ifidx);
1735 dev = cfg80211_get_dev_from_ifindex(ifidx);
1741 if (!dev->ops->dump_station) {
1747 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1754 if (nl80211_send_station(skb,
1755 NETLINK_CB(cb->skb).pid,
1756 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1766 cb->args[1] = sta_idx;
1769 cfg80211_unlock_rdev(dev);
1776 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1778 struct cfg80211_registered_device *rdev;
1780 struct net_device *dev;
1781 struct station_info sinfo;
1782 struct sk_buff *msg;
1783 u8 *mac_addr = NULL;
1785 memset(&sinfo, 0, sizeof(sinfo));
1787 if (!info->attrs[NL80211_ATTR_MAC])
1790 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1794 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1798 if (!rdev->ops->get_station) {
1803 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
1807 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1811 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1812 dev, mac_addr, &sinfo) < 0)
1815 err = genlmsg_reply(msg, info);
1821 cfg80211_unlock_rdev(rdev);
1830 * Get vlan interface making sure it is on the right wiphy.
1832 static int get_vlan(struct nlattr *vlanattr,
1833 struct cfg80211_registered_device *rdev,
1834 struct net_device **vlan)
1839 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1842 if (!(*vlan)->ieee80211_ptr)
1844 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1850 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1852 struct cfg80211_registered_device *rdev;
1854 struct net_device *dev;
1855 struct station_parameters params;
1856 u8 *mac_addr = NULL;
1858 memset(¶ms, 0, sizeof(params));
1860 params.listen_interval = -1;
1862 if (info->attrs[NL80211_ATTR_STA_AID])
1865 if (!info->attrs[NL80211_ATTR_MAC])
1868 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1870 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1871 params.supported_rates =
1872 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1873 params.supported_rates_len =
1874 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1877 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1878 params.listen_interval =
1879 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1881 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1883 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1885 if (parse_station_flags(info, ¶ms))
1888 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1889 params.plink_action =
1890 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1894 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1898 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], rdev, ¶ms.vlan);
1902 /* validate settings */
1905 switch (dev->ieee80211_ptr->iftype) {
1906 case NL80211_IFTYPE_AP:
1907 case NL80211_IFTYPE_AP_VLAN:
1908 /* disallow mesh-specific things */
1909 if (params.plink_action)
1912 case NL80211_IFTYPE_STATION:
1913 /* disallow everything but AUTHORIZED flag */
1914 if (params.plink_action)
1918 if (params.supported_rates)
1922 if (params.listen_interval >= 0)
1924 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
1927 case NL80211_IFTYPE_MESH_POINT:
1928 /* disallow things mesh doesn't support */
1933 if (params.listen_interval >= 0)
1935 if (params.supported_rates)
1937 if (params.sta_flags_mask)
1947 if (!rdev->ops->change_station) {
1952 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
1956 dev_put(params.vlan);
1957 cfg80211_unlock_rdev(rdev);
1965 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1967 struct cfg80211_registered_device *rdev;
1969 struct net_device *dev;
1970 struct station_parameters params;
1971 u8 *mac_addr = NULL;
1973 memset(¶ms, 0, sizeof(params));
1975 if (!info->attrs[NL80211_ATTR_MAC])
1978 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1981 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1984 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1985 params.supported_rates =
1986 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1987 params.supported_rates_len =
1988 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1989 params.listen_interval =
1990 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1992 if (info->attrs[NL80211_ATTR_STA_AID]) {
1993 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
1994 if (!params.aid || params.aid > IEEE80211_MAX_AID)
1998 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2000 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2002 if (parse_station_flags(info, ¶ms))
2007 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2011 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], rdev, ¶ms.vlan);
2015 /* validate settings */
2018 switch (dev->ieee80211_ptr->iftype) {
2019 case NL80211_IFTYPE_AP:
2020 case NL80211_IFTYPE_AP_VLAN:
2021 /* all ok but must have AID */
2025 case NL80211_IFTYPE_MESH_POINT:
2026 /* disallow things mesh doesn't support */
2033 if (params.listen_interval >= 0)
2035 if (params.supported_rates)
2037 if (params.sta_flags_mask)
2047 if (!rdev->ops->add_station) {
2052 if (!netif_running(dev)) {
2057 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2061 dev_put(params.vlan);
2062 cfg80211_unlock_rdev(rdev);
2070 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2072 struct cfg80211_registered_device *rdev;
2074 struct net_device *dev;
2075 u8 *mac_addr = NULL;
2077 if (info->attrs[NL80211_ATTR_MAC])
2078 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2082 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2086 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2087 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2088 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2093 if (!rdev->ops->del_station) {
2098 err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2101 cfg80211_unlock_rdev(rdev);
2109 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2110 int flags, struct net_device *dev,
2111 u8 *dst, u8 *next_hop,
2112 struct mpath_info *pinfo)
2115 struct nlattr *pinfoattr;
2117 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2121 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2122 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2123 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2125 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2127 goto nla_put_failure;
2128 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2129 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2131 if (pinfo->filled & MPATH_INFO_DSN)
2132 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
2134 if (pinfo->filled & MPATH_INFO_METRIC)
2135 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2137 if (pinfo->filled & MPATH_INFO_EXPTIME)
2138 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2140 if (pinfo->filled & MPATH_INFO_FLAGS)
2141 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2143 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2144 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2145 pinfo->discovery_timeout);
2146 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2147 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2148 pinfo->discovery_retries);
2150 nla_nest_end(msg, pinfoattr);
2152 return genlmsg_end(msg, hdr);
2155 genlmsg_cancel(msg, hdr);
2159 static int nl80211_dump_mpath(struct sk_buff *skb,
2160 struct netlink_callback *cb)
2162 struct mpath_info pinfo;
2163 struct cfg80211_registered_device *dev;
2164 struct net_device *netdev;
2166 u8 next_hop[ETH_ALEN];
2167 int ifidx = cb->args[0];
2168 int path_idx = cb->args[1];
2172 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
2173 nl80211_fam.attrbuf, nl80211_fam.maxattr,
2178 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
2181 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
2188 netdev = __dev_get_by_index(&init_net, ifidx);
2194 dev = cfg80211_get_dev_from_ifindex(ifidx);
2200 if (!dev->ops->dump_mpath) {
2205 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2211 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2212 dst, next_hop, &pinfo);
2218 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2219 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2220 netdev, dst, next_hop,
2229 cb->args[1] = path_idx;
2232 cfg80211_unlock_rdev(dev);
2239 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2241 struct cfg80211_registered_device *rdev;
2243 struct net_device *dev;
2244 struct mpath_info pinfo;
2245 struct sk_buff *msg;
2247 u8 next_hop[ETH_ALEN];
2249 memset(&pinfo, 0, sizeof(pinfo));
2251 if (!info->attrs[NL80211_ATTR_MAC])
2254 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2258 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2262 if (!rdev->ops->get_mpath) {
2267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2272 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2276 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2280 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2281 dev, dst, next_hop, &pinfo) < 0)
2284 err = genlmsg_reply(msg, info);
2290 cfg80211_unlock_rdev(rdev);
2298 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2300 struct cfg80211_registered_device *rdev;
2302 struct net_device *dev;
2304 u8 *next_hop = NULL;
2306 if (!info->attrs[NL80211_ATTR_MAC])
2309 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2312 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2313 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2317 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2321 if (!rdev->ops->change_mpath) {
2326 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2331 if (!netif_running(dev)) {
2336 err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2339 cfg80211_unlock_rdev(rdev);
2346 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2348 struct cfg80211_registered_device *rdev;
2350 struct net_device *dev;
2352 u8 *next_hop = NULL;
2354 if (!info->attrs[NL80211_ATTR_MAC])
2357 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2360 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2361 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2365 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2369 if (!rdev->ops->add_mpath) {
2374 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2379 if (!netif_running(dev)) {
2384 err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2387 cfg80211_unlock_rdev(rdev);
2395 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2397 struct cfg80211_registered_device *rdev;
2399 struct net_device *dev;
2402 if (info->attrs[NL80211_ATTR_MAC])
2403 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2407 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2411 if (!rdev->ops->del_mpath) {
2416 err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2419 cfg80211_unlock_rdev(rdev);
2427 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2429 struct cfg80211_registered_device *rdev;
2431 struct net_device *dev;
2432 struct bss_parameters params;
2434 memset(¶ms, 0, sizeof(params));
2435 /* default to not changing parameters */
2436 params.use_cts_prot = -1;
2437 params.use_short_preamble = -1;
2438 params.use_short_slot_time = -1;
2440 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2441 params.use_cts_prot =
2442 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2443 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2444 params.use_short_preamble =
2445 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2446 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2447 params.use_short_slot_time =
2448 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2449 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2450 params.basic_rates =
2451 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2452 params.basic_rates_len =
2453 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2458 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2462 if (!rdev->ops->change_bss) {
2467 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2472 err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2475 cfg80211_unlock_rdev(rdev);
2483 static const struct nla_policy
2484 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2485 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2486 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2487 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2488 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2489 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2490 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2493 static int parse_reg_rule(struct nlattr *tb[],
2494 struct ieee80211_reg_rule *reg_rule)
2496 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2497 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2499 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2501 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2503 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2505 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2507 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2510 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2512 freq_range->start_freq_khz =
2513 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2514 freq_range->end_freq_khz =
2515 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2516 freq_range->max_bandwidth_khz =
2517 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2519 power_rule->max_eirp =
2520 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2522 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2523 power_rule->max_antenna_gain =
2524 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2529 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2535 * You should only get this when cfg80211 hasn't yet initialized
2536 * completely when built-in to the kernel right between the time
2537 * window between nl80211_init() and regulatory_init(), if that is
2540 mutex_lock(&cfg80211_mutex);
2541 if (unlikely(!cfg80211_regdomain)) {
2542 mutex_unlock(&cfg80211_mutex);
2543 return -EINPROGRESS;
2545 mutex_unlock(&cfg80211_mutex);
2547 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2550 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2552 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
2553 /* We ignore world regdom requests with the old regdom setup */
2554 if (is_world_regdom(data))
2558 r = regulatory_hint_user(data);
2563 static int nl80211_get_mesh_params(struct sk_buff *skb,
2564 struct genl_info *info)
2566 struct cfg80211_registered_device *rdev;
2567 struct mesh_config cur_params;
2569 struct net_device *dev;
2571 struct nlattr *pinfoattr;
2572 struct sk_buff *msg;
2576 /* Look up our device */
2577 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2581 if (!rdev->ops->get_mesh_params) {
2586 /* Get the mesh params */
2587 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
2591 /* Draw up a netlink message to send back */
2592 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2597 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2598 NL80211_CMD_GET_MESH_PARAMS);
2600 goto nla_put_failure;
2601 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2603 goto nla_put_failure;
2604 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2605 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2606 cur_params.dot11MeshRetryTimeout);
2607 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2608 cur_params.dot11MeshConfirmTimeout);
2609 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2610 cur_params.dot11MeshHoldingTimeout);
2611 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2612 cur_params.dot11MeshMaxPeerLinks);
2613 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2614 cur_params.dot11MeshMaxRetries);
2615 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2616 cur_params.dot11MeshTTL);
2617 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2618 cur_params.auto_open_plinks);
2619 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2620 cur_params.dot11MeshHWMPmaxPREQretries);
2621 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2622 cur_params.path_refresh_time);
2623 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2624 cur_params.min_discovery_timeout);
2625 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2626 cur_params.dot11MeshHWMPactivePathTimeout);
2627 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2628 cur_params.dot11MeshHWMPpreqMinInterval);
2629 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2630 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2631 nla_nest_end(msg, pinfoattr);
2632 genlmsg_end(msg, hdr);
2633 err = genlmsg_reply(msg, info);
2637 genlmsg_cancel(msg, hdr);
2641 cfg80211_unlock_rdev(rdev);
2649 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2651 if (table[attr_num]) {\
2652 cfg.param = nla_fn(table[attr_num]); \
2653 mask |= (1 << (attr_num - 1)); \
2657 static struct nla_policy
2658 nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
2659 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2660 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2661 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2662 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2663 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2664 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2665 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2667 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2668 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2669 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2670 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2671 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2672 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2675 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2679 struct cfg80211_registered_device *rdev;
2680 struct net_device *dev;
2681 struct mesh_config cfg;
2682 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2683 struct nlattr *parent_attr;
2685 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2688 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2689 parent_attr, nl80211_meshconf_params_policy))
2694 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2698 if (!rdev->ops->set_mesh_params) {
2703 /* This makes sure that there aren't more than 32 mesh config
2704 * parameters (otherwise our bitfield scheme would not work.) */
2705 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2707 /* Fill in the params struct */
2709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2710 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2712 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2714 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2716 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2718 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2720 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2722 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2723 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2724 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2727 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2729 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2731 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2732 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2734 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2735 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2738 dot11MeshHWMPnetDiameterTraversalTime,
2739 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2743 err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
2747 cfg80211_unlock_rdev(rdev);
2755 #undef FILL_IN_MESH_PARAM_IF_SET
2757 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2759 struct sk_buff *msg;
2761 struct nlattr *nl_reg_rules;
2765 mutex_lock(&cfg80211_mutex);
2767 if (!cfg80211_regdomain)
2770 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2776 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2777 NL80211_CMD_GET_REG);
2779 goto nla_put_failure;
2781 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2782 cfg80211_regdomain->alpha2);
2784 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2786 goto nla_put_failure;
2788 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2789 struct nlattr *nl_reg_rule;
2790 const struct ieee80211_reg_rule *reg_rule;
2791 const struct ieee80211_freq_range *freq_range;
2792 const struct ieee80211_power_rule *power_rule;
2794 reg_rule = &cfg80211_regdomain->reg_rules[i];
2795 freq_range = ®_rule->freq_range;
2796 power_rule = ®_rule->power_rule;
2798 nl_reg_rule = nla_nest_start(msg, i);
2800 goto nla_put_failure;
2802 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2804 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2805 freq_range->start_freq_khz);
2806 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2807 freq_range->end_freq_khz);
2808 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2809 freq_range->max_bandwidth_khz);
2810 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2811 power_rule->max_antenna_gain);
2812 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2813 power_rule->max_eirp);
2815 nla_nest_end(msg, nl_reg_rule);
2818 nla_nest_end(msg, nl_reg_rules);
2820 genlmsg_end(msg, hdr);
2821 err = genlmsg_reply(msg, info);
2825 genlmsg_cancel(msg, hdr);
2828 mutex_unlock(&cfg80211_mutex);
2832 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2834 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2835 struct nlattr *nl_reg_rule;
2836 char *alpha2 = NULL;
2837 int rem_reg_rules = 0, r = 0;
2838 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2839 struct ieee80211_regdomain *rd = NULL;
2841 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2844 if (!info->attrs[NL80211_ATTR_REG_RULES])
2847 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2849 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2852 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2856 mutex_lock(&cfg80211_mutex);
2858 if (!reg_is_valid_request(alpha2)) {
2863 size_of_regd = sizeof(struct ieee80211_regdomain) +
2864 (num_rules * sizeof(struct ieee80211_reg_rule));
2866 rd = kzalloc(size_of_regd, GFP_KERNEL);
2872 rd->n_reg_rules = num_rules;
2873 rd->alpha2[0] = alpha2[0];
2874 rd->alpha2[1] = alpha2[1];
2876 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2878 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2879 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2881 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2887 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2893 BUG_ON(rule_idx != num_rules);
2897 mutex_unlock(&cfg80211_mutex);
2902 mutex_unlock(&cfg80211_mutex);
2907 static int validate_scan_freqs(struct nlattr *freqs)
2909 struct nlattr *attr1, *attr2;
2910 int n_channels = 0, tmp1, tmp2;
2912 nla_for_each_nested(attr1, freqs, tmp1) {
2915 * Some hardware has a limited channel list for
2916 * scanning, and it is pretty much nonsensical
2917 * to scan for a channel twice, so disallow that
2918 * and don't require drivers to check that the
2919 * channel list they get isn't longer than what
2920 * they can scan, as long as they can scan all
2921 * the channels they registered at once.
2923 nla_for_each_nested(attr2, freqs, tmp2)
2924 if (attr1 != attr2 &&
2925 nla_get_u32(attr1) == nla_get_u32(attr2))
2932 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2934 struct cfg80211_registered_device *rdev;
2935 struct net_device *dev;
2936 struct cfg80211_scan_request *request;
2937 struct cfg80211_ssid *ssid;
2938 struct ieee80211_channel *channel;
2939 struct nlattr *attr;
2940 struct wiphy *wiphy;
2941 int err, tmp, n_ssids = 0, n_channels, i;
2942 enum ieee80211_band band;
2945 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2950 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2954 wiphy = &rdev->wiphy;
2956 if (!rdev->ops->scan) {
2961 if (!netif_running(dev)) {
2966 if (rdev->scan_req) {
2971 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2972 n_channels = validate_scan_freqs(
2973 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
2981 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2982 if (wiphy->bands[band])
2983 n_channels += wiphy->bands[band]->n_channels;
2986 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2987 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2990 if (n_ssids > wiphy->max_scan_ssids) {
2995 if (info->attrs[NL80211_ATTR_IE])
2996 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3000 if (ie_len > wiphy->max_scan_ie_len) {
3005 request = kzalloc(sizeof(*request)
3006 + sizeof(*ssid) * n_ssids
3007 + sizeof(channel) * n_channels
3008 + ie_len, GFP_KERNEL);
3014 request->channels = (void *)((char *)request + sizeof(*request));
3015 request->n_channels = n_channels;
3017 request->ssids = (void *)(request->channels + n_channels);
3018 request->n_ssids = n_ssids;
3021 request->ie = (void *)(request->ssids + n_ssids);
3023 request->ie = (void *)(request->channels + n_channels);
3026 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3027 /* user specified, bail out if channel not found */
3028 request->n_channels = n_channels;
3030 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3031 request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3032 if (!request->channels[i]) {
3041 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3043 if (!wiphy->bands[band])
3045 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3046 request->channels[i] = &wiphy->bands[band]->channels[j];
3053 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3054 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3055 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3059 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3060 request->ssids[i].ssid_len = nla_len(attr);
3065 if (info->attrs[NL80211_ATTR_IE]) {
3066 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3067 memcpy((void *)request->ie,
3068 nla_data(info->attrs[NL80211_ATTR_IE]),
3072 request->ifidx = dev->ifindex;
3073 request->wiphy = &rdev->wiphy;
3075 rdev->scan_req = request;
3076 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3079 nl80211_send_scan_start(rdev, dev);
3083 rdev->scan_req = NULL;
3087 cfg80211_unlock_rdev(rdev);
3095 static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3096 struct cfg80211_registered_device *rdev,
3097 struct net_device *dev,
3098 struct cfg80211_bss *res)
3103 hdr = nl80211hdr_put(msg, pid, seq, flags,
3104 NL80211_CMD_NEW_SCAN_RESULTS);
3108 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION,
3109 rdev->bss_generation);
3110 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3112 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3114 goto nla_put_failure;
3115 if (!is_zero_ether_addr(res->bssid))
3116 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3117 if (res->information_elements && res->len_information_elements)
3118 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3119 res->len_information_elements,
3120 res->information_elements);
3122 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3123 if (res->beacon_interval)
3124 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3125 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3126 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3128 switch (rdev->wiphy.signal_type) {
3129 case CFG80211_SIGNAL_TYPE_MBM:
3130 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3132 case CFG80211_SIGNAL_TYPE_UNSPEC:
3133 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3139 nla_nest_end(msg, bss);
3141 return genlmsg_end(msg, hdr);
3144 genlmsg_cancel(msg, hdr);
3148 static int nl80211_dump_scan(struct sk_buff *skb,
3149 struct netlink_callback *cb)
3151 struct cfg80211_registered_device *dev;
3152 struct net_device *netdev;
3153 struct cfg80211_internal_bss *scan;
3154 int ifidx = cb->args[0];
3155 int start = cb->args[1], idx = 0;
3159 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
3160 nl80211_fam.attrbuf, nl80211_fam.maxattr,
3165 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
3168 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
3171 cb->args[0] = ifidx;
3174 netdev = dev_get_by_index(&init_net, ifidx);
3178 dev = cfg80211_get_dev_from_ifindex(ifidx);
3181 goto out_put_netdev;
3184 spin_lock_bh(&dev->bss_lock);
3185 cfg80211_bss_expire(dev);
3187 list_for_each_entry(scan, &dev->bss_list, list) {
3190 if (nl80211_send_bss(skb,
3191 NETLINK_CB(cb->skb).pid,
3192 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3193 dev, netdev, &scan->pub) < 0) {
3200 spin_unlock_bh(&dev->bss_lock);
3204 cfg80211_unlock_rdev(dev);
3211 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3213 return auth_type <= NL80211_AUTHTYPE_MAX;
3216 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3218 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3219 NL80211_WPA_VERSION_2));
3222 static bool nl80211_valid_akm_suite(u32 akm)
3224 return akm == WLAN_AKM_SUITE_8021X ||
3225 akm == WLAN_AKM_SUITE_PSK;
3228 static bool nl80211_valid_cipher_suite(u32 cipher)
3230 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3231 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3232 cipher == WLAN_CIPHER_SUITE_TKIP ||
3233 cipher == WLAN_CIPHER_SUITE_CCMP ||
3234 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
3238 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3240 struct cfg80211_registered_device *rdev;
3241 struct net_device *dev;
3242 struct ieee80211_channel *chan;
3243 const u8 *bssid, *ssid, *ie = NULL;
3244 int err, ssid_len, ie_len = 0;
3245 enum nl80211_auth_type auth_type;
3246 struct key_parse key;
3248 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3251 if (!info->attrs[NL80211_ATTR_MAC])
3254 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3257 if (!info->attrs[NL80211_ATTR_SSID])
3260 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3263 err = nl80211_parse_key(info, &key);
3268 if (!key.p.key || !key.p.key_len)
3270 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3271 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3272 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3273 key.p.key_len != WLAN_KEY_LEN_WEP104))
3284 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3288 if (!rdev->ops->auth) {
3293 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3298 if (!netif_running(dev)) {
3303 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3304 chan = ieee80211_get_channel(&rdev->wiphy,
3305 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3306 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3311 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3312 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3314 if (info->attrs[NL80211_ATTR_IE]) {
3315 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3316 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3319 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3320 if (!nl80211_valid_auth_type(auth_type)) {
3325 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3326 ssid, ssid_len, ie, ie_len,
3327 key.p.key, key.p.key_len, key.idx);
3330 cfg80211_unlock_rdev(rdev);
3337 static int nl80211_crypto_settings(struct genl_info *info,
3338 struct cfg80211_crypto_settings *settings,
3341 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3343 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3347 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3348 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3349 settings->n_ciphers_pairwise = len / sizeof(u32);
3351 if (len % sizeof(u32))
3354 if (settings->n_ciphers_pairwise > cipher_limit)
3357 memcpy(settings->ciphers_pairwise, data, len);
3359 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3360 if (!nl80211_valid_cipher_suite(
3361 settings->ciphers_pairwise[i]))
3365 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3366 settings->cipher_group =
3367 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3368 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3372 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3373 settings->wpa_versions =
3374 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3375 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3379 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3383 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3384 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3385 settings->n_akm_suites = len / sizeof(u32);
3387 if (len % sizeof(u32))
3390 memcpy(settings->akm_suites, data, len);
3392 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3393 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3400 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3402 struct cfg80211_registered_device *rdev;
3403 struct net_device *dev;
3404 struct cfg80211_crypto_settings crypto;
3405 struct ieee80211_channel *chan;
3406 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
3407 int err, ssid_len, ie_len = 0;
3408 bool use_mfp = false;
3410 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3413 if (!info->attrs[NL80211_ATTR_MAC] ||
3414 !info->attrs[NL80211_ATTR_SSID] ||
3415 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
3420 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3424 if (!rdev->ops->assoc) {
3429 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3434 if (!netif_running(dev)) {
3439 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3441 chan = ieee80211_get_channel(&rdev->wiphy,
3442 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3443 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3448 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3449 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3451 if (info->attrs[NL80211_ATTR_IE]) {
3452 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3453 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3456 if (info->attrs[NL80211_ATTR_USE_MFP]) {
3457 enum nl80211_mfp mfp =
3458 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
3459 if (mfp == NL80211_MFP_REQUIRED)
3461 else if (mfp != NL80211_MFP_NO) {
3467 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3468 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3470 err = nl80211_crypto_settings(info, &crypto, 1);
3472 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3473 ssid, ssid_len, ie, ie_len, use_mfp,
3477 cfg80211_unlock_rdev(rdev);
3484 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3486 struct cfg80211_registered_device *rdev;
3487 struct net_device *dev;
3488 const u8 *ie = NULL, *bssid;
3489 int err, ie_len = 0;
3492 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3495 if (!info->attrs[NL80211_ATTR_MAC])
3498 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3503 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3507 if (!rdev->ops->deauth) {
3512 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3517 if (!netif_running(dev)) {
3522 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3524 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3525 if (reason_code == 0) {
3526 /* Reason Code 0 is reserved */
3531 if (info->attrs[NL80211_ATTR_IE]) {
3532 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3533 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3536 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code);
3539 cfg80211_unlock_rdev(rdev);
3546 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3548 struct cfg80211_registered_device *rdev;
3549 struct net_device *dev;
3550 const u8 *ie = NULL, *bssid;
3551 int err, ie_len = 0;
3554 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3557 if (!info->attrs[NL80211_ATTR_MAC])
3560 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3565 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3569 if (!rdev->ops->disassoc) {
3574 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3579 if (!netif_running(dev)) {
3584 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3586 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3587 if (reason_code == 0) {
3588 /* Reason Code 0 is reserved */
3593 if (info->attrs[NL80211_ATTR_IE]) {
3594 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3595 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3598 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code);
3601 cfg80211_unlock_rdev(rdev);
3608 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3610 struct cfg80211_registered_device *rdev;
3611 struct net_device *dev;
3612 struct cfg80211_ibss_params ibss;
3613 struct wiphy *wiphy;
3614 struct cfg80211_cached_keys *connkeys = NULL;
3617 memset(&ibss, 0, sizeof(ibss));
3619 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3622 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3623 !info->attrs[NL80211_ATTR_SSID] ||
3624 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3627 ibss.beacon_interval = 100;
3629 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3630 ibss.beacon_interval =
3631 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3632 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3638 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3642 if (!rdev->ops->join_ibss) {
3647 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3652 if (!netif_running(dev)) {
3657 wiphy = &rdev->wiphy;
3659 if (info->attrs[NL80211_ATTR_MAC])
3660 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3661 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3662 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3664 if (info->attrs[NL80211_ATTR_IE]) {
3665 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3666 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3669 ibss.channel = ieee80211_get_channel(wiphy,
3670 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3671 if (!ibss.channel ||
3672 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3673 ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
3678 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
3679 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3681 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3682 connkeys = nl80211_parse_connkeys(rdev,
3683 info->attrs[NL80211_ATTR_KEYS]);
3684 if (IS_ERR(connkeys)) {
3685 err = PTR_ERR(connkeys);
3691 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
3694 cfg80211_unlock_rdev(rdev);
3703 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3705 struct cfg80211_registered_device *rdev;
3706 struct net_device *dev;
3711 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3715 if (!rdev->ops->leave_ibss) {
3720 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3725 if (!netif_running(dev)) {
3730 err = cfg80211_leave_ibss(rdev, dev, false);
3733 cfg80211_unlock_rdev(rdev);
3740 #ifdef CONFIG_NL80211_TESTMODE
3741 static struct genl_multicast_group nl80211_testmode_mcgrp = {
3745 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3747 struct cfg80211_registered_device *rdev;
3750 if (!info->attrs[NL80211_ATTR_TESTDATA])
3755 rdev = cfg80211_get_dev_from_info(info);
3757 err = PTR_ERR(rdev);
3762 if (rdev->ops->testmode_cmd) {
3763 rdev->testmode_info = info;
3764 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3765 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3766 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3767 rdev->testmode_info = NULL;
3770 cfg80211_unlock_rdev(rdev);
3777 static struct sk_buff *
3778 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3779 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3781 struct sk_buff *skb;
3783 struct nlattr *data;
3785 skb = nlmsg_new(approxlen + 100, gfp);
3789 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3795 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3796 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3798 ((void **)skb->cb)[0] = rdev;
3799 ((void **)skb->cb)[1] = hdr;
3800 ((void **)skb->cb)[2] = data;
3809 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3812 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3814 if (WARN_ON(!rdev->testmode_info))
3817 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3818 rdev->testmode_info->snd_pid,
3819 rdev->testmode_info->snd_seq,
3822 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3824 int cfg80211_testmode_reply(struct sk_buff *skb)
3826 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3827 void *hdr = ((void **)skb->cb)[1];
3828 struct nlattr *data = ((void **)skb->cb)[2];
3830 if (WARN_ON(!rdev->testmode_info)) {
3835 nla_nest_end(skb, data);
3836 genlmsg_end(skb, hdr);
3837 return genlmsg_reply(skb, rdev->testmode_info);
3839 EXPORT_SYMBOL(cfg80211_testmode_reply);
3841 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3842 int approxlen, gfp_t gfp)
3844 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3846 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3848 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3850 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3852 void *hdr = ((void **)skb->cb)[1];
3853 struct nlattr *data = ((void **)skb->cb)[2];
3855 nla_nest_end(skb, data);
3856 genlmsg_end(skb, hdr);
3857 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3859 EXPORT_SYMBOL(cfg80211_testmode_event);
3862 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3864 struct cfg80211_registered_device *rdev;
3865 struct net_device *dev;
3866 struct cfg80211_connect_params connect;
3867 struct wiphy *wiphy;
3868 struct cfg80211_cached_keys *connkeys = NULL;
3871 memset(&connect, 0, sizeof(connect));
3873 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3876 if (!info->attrs[NL80211_ATTR_SSID] ||
3877 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3880 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3882 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3883 if (!nl80211_valid_auth_type(connect.auth_type))
3886 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3888 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3890 err = nl80211_crypto_settings(info, &connect.crypto,
3891 NL80211_MAX_NR_CIPHER_SUITES);
3896 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3900 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3905 if (!netif_running(dev)) {
3910 wiphy = &rdev->wiphy;
3912 if (info->attrs[NL80211_ATTR_MAC])
3913 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3914 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3915 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3917 if (info->attrs[NL80211_ATTR_IE]) {
3918 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3919 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3922 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3924 ieee80211_get_channel(wiphy,
3925 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3926 if (!connect.channel ||
3927 connect.channel->flags & IEEE80211_CHAN_DISABLED) {
3933 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3934 connkeys = nl80211_parse_connkeys(rdev,
3935 info->attrs[NL80211_ATTR_KEYS]);
3936 if (IS_ERR(connkeys)) {
3937 err = PTR_ERR(connkeys);
3943 err = cfg80211_connect(rdev, dev, &connect, connkeys);
3946 cfg80211_unlock_rdev(rdev);
3955 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
3957 struct cfg80211_registered_device *rdev;
3958 struct net_device *dev;
3962 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3963 reason = WLAN_REASON_DEAUTH_LEAVING;
3965 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3972 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3976 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3981 if (!netif_running(dev)) {
3986 err = cfg80211_disconnect(rdev, dev, reason, true);
3989 cfg80211_unlock_rdev(rdev);
3996 static struct genl_ops nl80211_ops[] = {
3998 .cmd = NL80211_CMD_GET_WIPHY,
3999 .doit = nl80211_get_wiphy,
4000 .dumpit = nl80211_dump_wiphy,
4001 .policy = nl80211_policy,
4002 /* can be retrieved by unprivileged users */
4005 .cmd = NL80211_CMD_SET_WIPHY,
4006 .doit = nl80211_set_wiphy,
4007 .policy = nl80211_policy,
4008 .flags = GENL_ADMIN_PERM,
4011 .cmd = NL80211_CMD_GET_INTERFACE,
4012 .doit = nl80211_get_interface,
4013 .dumpit = nl80211_dump_interface,
4014 .policy = nl80211_policy,
4015 /* can be retrieved by unprivileged users */
4018 .cmd = NL80211_CMD_SET_INTERFACE,
4019 .doit = nl80211_set_interface,
4020 .policy = nl80211_policy,
4021 .flags = GENL_ADMIN_PERM,
4024 .cmd = NL80211_CMD_NEW_INTERFACE,
4025 .doit = nl80211_new_interface,
4026 .policy = nl80211_policy,
4027 .flags = GENL_ADMIN_PERM,
4030 .cmd = NL80211_CMD_DEL_INTERFACE,
4031 .doit = nl80211_del_interface,
4032 .policy = nl80211_policy,
4033 .flags = GENL_ADMIN_PERM,
4036 .cmd = NL80211_CMD_GET_KEY,
4037 .doit = nl80211_get_key,
4038 .policy = nl80211_policy,
4039 .flags = GENL_ADMIN_PERM,
4042 .cmd = NL80211_CMD_SET_KEY,
4043 .doit = nl80211_set_key,
4044 .policy = nl80211_policy,
4045 .flags = GENL_ADMIN_PERM,
4048 .cmd = NL80211_CMD_NEW_KEY,
4049 .doit = nl80211_new_key,
4050 .policy = nl80211_policy,
4051 .flags = GENL_ADMIN_PERM,
4054 .cmd = NL80211_CMD_DEL_KEY,
4055 .doit = nl80211_del_key,
4056 .policy = nl80211_policy,
4057 .flags = GENL_ADMIN_PERM,
4060 .cmd = NL80211_CMD_SET_BEACON,
4061 .policy = nl80211_policy,
4062 .flags = GENL_ADMIN_PERM,
4063 .doit = nl80211_addset_beacon,
4066 .cmd = NL80211_CMD_NEW_BEACON,
4067 .policy = nl80211_policy,
4068 .flags = GENL_ADMIN_PERM,
4069 .doit = nl80211_addset_beacon,
4072 .cmd = NL80211_CMD_DEL_BEACON,
4073 .policy = nl80211_policy,
4074 .flags = GENL_ADMIN_PERM,
4075 .doit = nl80211_del_beacon,
4078 .cmd = NL80211_CMD_GET_STATION,
4079 .doit = nl80211_get_station,
4080 .dumpit = nl80211_dump_station,
4081 .policy = nl80211_policy,
4084 .cmd = NL80211_CMD_SET_STATION,
4085 .doit = nl80211_set_station,
4086 .policy = nl80211_policy,
4087 .flags = GENL_ADMIN_PERM,
4090 .cmd = NL80211_CMD_NEW_STATION,
4091 .doit = nl80211_new_station,
4092 .policy = nl80211_policy,
4093 .flags = GENL_ADMIN_PERM,
4096 .cmd = NL80211_CMD_DEL_STATION,
4097 .doit = nl80211_del_station,
4098 .policy = nl80211_policy,
4099 .flags = GENL_ADMIN_PERM,
4102 .cmd = NL80211_CMD_GET_MPATH,
4103 .doit = nl80211_get_mpath,
4104 .dumpit = nl80211_dump_mpath,
4105 .policy = nl80211_policy,
4106 .flags = GENL_ADMIN_PERM,
4109 .cmd = NL80211_CMD_SET_MPATH,
4110 .doit = nl80211_set_mpath,
4111 .policy = nl80211_policy,
4112 .flags = GENL_ADMIN_PERM,
4115 .cmd = NL80211_CMD_NEW_MPATH,
4116 .doit = nl80211_new_mpath,
4117 .policy = nl80211_policy,
4118 .flags = GENL_ADMIN_PERM,
4121 .cmd = NL80211_CMD_DEL_MPATH,
4122 .doit = nl80211_del_mpath,
4123 .policy = nl80211_policy,
4124 .flags = GENL_ADMIN_PERM,
4127 .cmd = NL80211_CMD_SET_BSS,
4128 .doit = nl80211_set_bss,
4129 .policy = nl80211_policy,
4130 .flags = GENL_ADMIN_PERM,
4133 .cmd = NL80211_CMD_GET_REG,
4134 .doit = nl80211_get_reg,
4135 .policy = nl80211_policy,
4136 /* can be retrieved by unprivileged users */
4139 .cmd = NL80211_CMD_SET_REG,
4140 .doit = nl80211_set_reg,
4141 .policy = nl80211_policy,
4142 .flags = GENL_ADMIN_PERM,
4145 .cmd = NL80211_CMD_REQ_SET_REG,
4146 .doit = nl80211_req_set_reg,
4147 .policy = nl80211_policy,
4148 .flags = GENL_ADMIN_PERM,
4151 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4152 .doit = nl80211_get_mesh_params,
4153 .policy = nl80211_policy,
4154 /* can be retrieved by unprivileged users */
4157 .cmd = NL80211_CMD_SET_MESH_PARAMS,
4158 .doit = nl80211_set_mesh_params,
4159 .policy = nl80211_policy,
4160 .flags = GENL_ADMIN_PERM,
4163 .cmd = NL80211_CMD_TRIGGER_SCAN,
4164 .doit = nl80211_trigger_scan,
4165 .policy = nl80211_policy,
4166 .flags = GENL_ADMIN_PERM,
4169 .cmd = NL80211_CMD_GET_SCAN,
4170 .policy = nl80211_policy,
4171 .dumpit = nl80211_dump_scan,
4174 .cmd = NL80211_CMD_AUTHENTICATE,
4175 .doit = nl80211_authenticate,
4176 .policy = nl80211_policy,
4177 .flags = GENL_ADMIN_PERM,
4180 .cmd = NL80211_CMD_ASSOCIATE,
4181 .doit = nl80211_associate,
4182 .policy = nl80211_policy,
4183 .flags = GENL_ADMIN_PERM,
4186 .cmd = NL80211_CMD_DEAUTHENTICATE,
4187 .doit = nl80211_deauthenticate,
4188 .policy = nl80211_policy,
4189 .flags = GENL_ADMIN_PERM,
4192 .cmd = NL80211_CMD_DISASSOCIATE,
4193 .doit = nl80211_disassociate,
4194 .policy = nl80211_policy,
4195 .flags = GENL_ADMIN_PERM,
4198 .cmd = NL80211_CMD_JOIN_IBSS,
4199 .doit = nl80211_join_ibss,
4200 .policy = nl80211_policy,
4201 .flags = GENL_ADMIN_PERM,
4204 .cmd = NL80211_CMD_LEAVE_IBSS,
4205 .doit = nl80211_leave_ibss,
4206 .policy = nl80211_policy,
4207 .flags = GENL_ADMIN_PERM,
4209 #ifdef CONFIG_NL80211_TESTMODE
4211 .cmd = NL80211_CMD_TESTMODE,
4212 .doit = nl80211_testmode_do,
4213 .policy = nl80211_policy,
4214 .flags = GENL_ADMIN_PERM,
4218 .cmd = NL80211_CMD_CONNECT,
4219 .doit = nl80211_connect,
4220 .policy = nl80211_policy,
4221 .flags = GENL_ADMIN_PERM,
4224 .cmd = NL80211_CMD_DISCONNECT,
4225 .doit = nl80211_disconnect,
4226 .policy = nl80211_policy,
4227 .flags = GENL_ADMIN_PERM,
4230 static struct genl_multicast_group nl80211_mlme_mcgrp = {
4234 /* multicast groups */
4235 static struct genl_multicast_group nl80211_config_mcgrp = {
4238 static struct genl_multicast_group nl80211_scan_mcgrp = {
4241 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4242 .name = "regulatory",
4245 /* notification functions */
4247 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4249 struct sk_buff *msg;
4251 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4255 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
4260 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
4263 static int nl80211_add_scan_req(struct sk_buff *msg,
4264 struct cfg80211_registered_device *rdev)
4266 struct cfg80211_scan_request *req = rdev->scan_req;
4267 struct nlattr *nest;
4270 ASSERT_RDEV_LOCK(rdev);
4275 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
4277 goto nla_put_failure;
4278 for (i = 0; i < req->n_ssids; i++)
4279 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
4280 nla_nest_end(msg, nest);
4282 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
4284 goto nla_put_failure;
4285 for (i = 0; i < req->n_channels; i++)
4286 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
4287 nla_nest_end(msg, nest);
4290 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
4297 static int nl80211_send_scan_msg(struct sk_buff *msg,
4298 struct cfg80211_registered_device *rdev,
4299 struct net_device *netdev,
4300 u32 pid, u32 seq, int flags,
4305 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
4309 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4310 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4312 /* ignore errors and send incomplete event anyway */
4313 nl80211_add_scan_req(msg, rdev);
4315 return genlmsg_end(msg, hdr);
4318 genlmsg_cancel(msg, hdr);
4322 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
4323 struct net_device *netdev)
4325 struct sk_buff *msg;
4327 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
4331 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4332 NL80211_CMD_TRIGGER_SCAN) < 0) {
4337 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
4340 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
4341 struct net_device *netdev)
4343 struct sk_buff *msg;
4345 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4349 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4350 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
4355 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
4358 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
4359 struct net_device *netdev)
4361 struct sk_buff *msg;
4363 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4367 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4368 NL80211_CMD_SCAN_ABORTED) < 0) {
4373 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
4377 * This can happen on global regulatory changes or device specific settings
4378 * based on custom world regulatory domains.
4380 void nl80211_send_reg_change_event(struct regulatory_request *request)
4382 struct sk_buff *msg;
4385 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4389 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
4395 /* Userspace can always count this one always being set */
4396 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
4398 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
4399 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4400 NL80211_REGDOM_TYPE_WORLD);
4401 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
4402 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4403 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
4404 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
4406 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4407 NL80211_REGDOM_TYPE_INTERSECTION);
4409 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4410 NL80211_REGDOM_TYPE_COUNTRY);
4411 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
4414 if (wiphy_idx_valid(request->wiphy_idx))
4415 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
4417 if (genlmsg_end(msg, hdr) < 0) {
4422 genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL);
4427 genlmsg_cancel(msg, hdr);
4431 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
4432 struct net_device *netdev,
4433 const u8 *buf, size_t len,
4434 enum nl80211_commands cmd, gfp_t gfp)
4436 struct sk_buff *msg;
4439 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4443 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
4449 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4450 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4451 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
4453 if (genlmsg_end(msg, hdr) < 0) {
4458 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4462 genlmsg_cancel(msg, hdr);
4466 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
4467 struct net_device *netdev, const u8 *buf,
4468 size_t len, gfp_t gfp)
4470 nl80211_send_mlme_event(rdev, netdev, buf, len,
4471 NL80211_CMD_AUTHENTICATE, gfp);
4474 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
4475 struct net_device *netdev, const u8 *buf,
4476 size_t len, gfp_t gfp)
4478 nl80211_send_mlme_event(rdev, netdev, buf, len,
4479 NL80211_CMD_ASSOCIATE, gfp);
4482 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
4483 struct net_device *netdev, const u8 *buf,
4484 size_t len, gfp_t gfp)
4486 nl80211_send_mlme_event(rdev, netdev, buf, len,
4487 NL80211_CMD_DEAUTHENTICATE, gfp);
4490 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
4491 struct net_device *netdev, const u8 *buf,
4492 size_t len, gfp_t gfp)
4494 nl80211_send_mlme_event(rdev, netdev, buf, len,
4495 NL80211_CMD_DISASSOCIATE, gfp);
4498 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
4499 struct net_device *netdev, int cmd,
4500 const u8 *addr, gfp_t gfp)
4502 struct sk_buff *msg;
4505 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4509 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
4515 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4516 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4517 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
4518 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4520 if (genlmsg_end(msg, hdr) < 0) {
4525 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4529 genlmsg_cancel(msg, hdr);
4533 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
4534 struct net_device *netdev, const u8 *addr,
4537 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
4541 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
4542 struct net_device *netdev, const u8 *addr,
4545 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
4549 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
4550 struct net_device *netdev, const u8 *bssid,
4551 const u8 *req_ie, size_t req_ie_len,
4552 const u8 *resp_ie, size_t resp_ie_len,
4553 u16 status, gfp_t gfp)
4555 struct sk_buff *msg;
4558 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
4562 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
4568 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4569 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4571 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
4572 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
4574 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
4576 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
4578 if (genlmsg_end(msg, hdr) < 0) {
4583 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4587 genlmsg_cancel(msg, hdr);
4592 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
4593 struct net_device *netdev, const u8 *bssid,
4594 const u8 *req_ie, size_t req_ie_len,
4595 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
4597 struct sk_buff *msg;
4600 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
4604 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
4610 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4611 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4612 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
4614 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
4616 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
4618 if (genlmsg_end(msg, hdr) < 0) {
4623 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4627 genlmsg_cancel(msg, hdr);
4632 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
4633 struct net_device *netdev, u16 reason,
4634 const u8 *ie, size_t ie_len, bool from_ap)
4636 struct sk_buff *msg;
4639 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
4643 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
4649 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4650 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4651 if (from_ap && reason)
4652 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
4654 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
4656 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
4658 if (genlmsg_end(msg, hdr) < 0) {
4663 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
4667 genlmsg_cancel(msg, hdr);
4672 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
4673 struct net_device *netdev, const u8 *bssid,
4676 struct sk_buff *msg;
4679 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4683 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
4689 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4690 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4691 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
4693 if (genlmsg_end(msg, hdr) < 0) {
4698 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4702 genlmsg_cancel(msg, hdr);
4706 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
4707 struct net_device *netdev, const u8 *addr,
4708 enum nl80211_key_type key_type, int key_id,
4709 const u8 *tsc, gfp_t gfp)
4711 struct sk_buff *msg;
4714 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4718 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
4724 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4725 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4727 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4728 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
4729 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
4731 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
4733 if (genlmsg_end(msg, hdr) < 0) {
4738 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4742 genlmsg_cancel(msg, hdr);
4746 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
4747 struct ieee80211_channel *channel_before,
4748 struct ieee80211_channel *channel_after)
4750 struct sk_buff *msg;
4752 struct nlattr *nl_freq;
4754 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
4758 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
4765 * Since we are applying the beacon hint to a wiphy we know its
4766 * wiphy_idx is valid
4768 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
4771 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
4773 goto nla_put_failure;
4774 if (nl80211_msg_put_channel(msg, channel_before))
4775 goto nla_put_failure;
4776 nla_nest_end(msg, nl_freq);
4779 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
4781 goto nla_put_failure;
4782 if (nl80211_msg_put_channel(msg, channel_after))
4783 goto nla_put_failure;
4784 nla_nest_end(msg, nl_freq);
4786 if (genlmsg_end(msg, hdr) < 0) {
4791 genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
4796 genlmsg_cancel(msg, hdr);
4800 /* initialisation/exit functions */
4802 int nl80211_init(void)
4806 err = genl_register_family_with_ops(&nl80211_fam,
4807 nl80211_ops, ARRAY_SIZE(nl80211_ops));
4811 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
4815 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
4819 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
4823 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
4827 #ifdef CONFIG_NL80211_TESTMODE
4828 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
4835 genl_unregister_family(&nl80211_fam);
4839 void nl80211_exit(void)
4841 genl_unregister_family(&nl80211_fam);