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/net_namespace.h>
18 #include <net/genetlink.h>
19 #include <net/cfg80211.h>
25 /* the netlink family */
26 static struct genl_family nl80211_fam = {
27 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
28 .name = "nl80211", /* have users key off the name instead */
29 .hdrsize = 0, /* no private header */
30 .version = 1, /* no particular meaning now */
31 .maxattr = NL80211_ATTR_MAX,
35 /* internal helper: get rdev and dev */
36 static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
37 struct cfg80211_registered_device **rdev,
38 struct net_device **dev)
40 struct nlattr **attrs = info->attrs;
43 if (!attrs[NL80211_ATTR_IFINDEX])
46 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
47 *dev = dev_get_by_index(genl_info_net(info), ifindex);
51 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
54 return PTR_ERR(*rdev);
60 /* policy for the attributes */
61 static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
62 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
63 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
65 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
66 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
67 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
68 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
69 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
70 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
73 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
74 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
75 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
77 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
78 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
80 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
81 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
82 .len = WLAN_MAX_KEY_LEN },
83 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
84 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
85 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
86 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
88 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
89 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
90 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
91 .len = IEEE80211_MAX_DATA_LEN },
92 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
93 .len = IEEE80211_MAX_DATA_LEN },
94 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
95 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
96 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
97 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
98 .len = NL80211_MAX_SUPP_RATES },
99 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
100 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
101 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
102 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_MESH_ID_LEN },
104 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
106 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
107 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
109 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
110 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
111 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
112 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
113 .len = NL80211_MAX_SUPP_RATES },
115 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
117 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
118 .len = NL80211_HT_CAPABILITY_LEN },
120 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
121 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
122 .len = IEEE80211_MAX_DATA_LEN },
123 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
124 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
126 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
127 .len = IEEE80211_MAX_SSID_LEN },
128 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
129 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
130 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
131 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
132 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
133 [NL80211_ATTR_STA_FLAGS2] = {
134 .len = sizeof(struct nl80211_sta_flag_update),
136 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
137 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
138 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
139 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
140 [NL80211_ATTR_PID] = { .type = NLA_U32 },
143 /* policy for the attributes */
144 static struct nla_policy
145 nl80211_key_policy[NL80211_KEY_MAX + 1] __read_mostly = {
146 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
147 [NL80211_KEY_IDX] = { .type = NLA_U8 },
148 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
149 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
150 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
151 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
155 static bool is_valid_ie_attr(const struct nlattr *attr)
163 pos = nla_data(attr);
184 /* message building helper */
185 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
188 /* since there is no private header just add the generic one */
189 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
192 static int nl80211_msg_put_channel(struct sk_buff *msg,
193 struct ieee80211_channel *chan)
195 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
198 if (chan->flags & IEEE80211_CHAN_DISABLED)
199 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
200 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
201 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
202 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
203 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
204 if (chan->flags & IEEE80211_CHAN_RADAR)
205 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
207 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
208 DBM_TO_MBM(chan->max_power));
216 /* netlink command implementations */
224 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
226 struct nlattr *tb[NL80211_KEY_MAX + 1];
227 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
232 k->def = !!tb[NL80211_KEY_DEFAULT];
233 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
235 if (tb[NL80211_KEY_IDX])
236 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
238 if (tb[NL80211_KEY_DATA]) {
239 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
240 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
243 if (tb[NL80211_KEY_SEQ]) {
244 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
245 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
248 if (tb[NL80211_KEY_CIPHER])
249 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
254 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
256 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
257 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
258 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
261 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
262 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
263 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
266 if (info->attrs[NL80211_ATTR_KEY_IDX])
267 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
269 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
270 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
272 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
273 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
278 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
282 memset(k, 0, sizeof(*k));
285 if (info->attrs[NL80211_ATTR_KEY])
286 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
288 err = nl80211_parse_key_old(info, k);
293 if (k->def && k->defmgmt)
298 if (k->idx < 4 || k->idx > 5)
301 if (k->idx < 0 || k->idx > 3)
304 if (k->idx < 0 || k->idx > 5)
312 static struct cfg80211_cached_keys *
313 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
316 struct key_parse parse;
318 struct cfg80211_cached_keys *result;
319 int rem, err, def = 0;
321 result = kzalloc(sizeof(*result), GFP_KERNEL);
323 return ERR_PTR(-ENOMEM);
326 result->defmgmt = -1;
328 nla_for_each_nested(key, keys, rem) {
329 memset(&parse, 0, sizeof(parse));
332 err = nl80211_parse_key_new(key, &parse);
338 if (parse.idx < 0 || parse.idx > 4)
344 result->def = parse.idx;
345 } else if (parse.defmgmt)
347 err = cfg80211_validate_key_settings(rdev, &parse.p,
351 result->params[parse.idx].cipher = parse.p.cipher;
352 result->params[parse.idx].key_len = parse.p.key_len;
353 result->params[parse.idx].key = result->data[parse.idx];
354 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
363 static int nl80211_key_allowed(struct wireless_dev *wdev)
365 ASSERT_WDEV_LOCK(wdev);
367 if (!netif_running(wdev->netdev))
370 switch (wdev->iftype) {
371 case NL80211_IFTYPE_AP:
372 case NL80211_IFTYPE_AP_VLAN:
374 case NL80211_IFTYPE_ADHOC:
375 if (!wdev->current_bss)
378 case NL80211_IFTYPE_STATION:
379 if (wdev->sme_state != CFG80211_SME_CONNECTED)
389 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
390 struct cfg80211_registered_device *dev)
393 struct nlattr *nl_bands, *nl_band;
394 struct nlattr *nl_freqs, *nl_freq;
395 struct nlattr *nl_rates, *nl_rate;
396 struct nlattr *nl_modes;
397 struct nlattr *nl_cmds;
398 enum ieee80211_band band;
399 struct ieee80211_channel *chan;
400 struct ieee80211_rate *rate;
402 u16 ifmodes = dev->wiphy.interface_modes;
404 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
408 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
409 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
411 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
412 cfg80211_rdev_list_generation);
414 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
415 dev->wiphy.retry_short);
416 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
417 dev->wiphy.retry_long);
418 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
419 dev->wiphy.frag_threshold);
420 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
421 dev->wiphy.rts_threshold);
423 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
424 dev->wiphy.max_scan_ssids);
425 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
426 dev->wiphy.max_scan_ie_len);
428 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
429 sizeof(u32) * dev->wiphy.n_cipher_suites,
430 dev->wiphy.cipher_suites);
432 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
434 goto nla_put_failure;
439 NLA_PUT_FLAG(msg, i);
444 nla_nest_end(msg, nl_modes);
446 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
448 goto nla_put_failure;
450 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
451 if (!dev->wiphy.bands[band])
454 nl_band = nla_nest_start(msg, band);
456 goto nla_put_failure;
459 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
460 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
461 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
462 &dev->wiphy.bands[band]->ht_cap.mcs);
463 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
464 dev->wiphy.bands[band]->ht_cap.cap);
465 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
466 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
467 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
468 dev->wiphy.bands[band]->ht_cap.ampdu_density);
471 /* add frequencies */
472 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
474 goto nla_put_failure;
476 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
477 nl_freq = nla_nest_start(msg, i);
479 goto nla_put_failure;
481 chan = &dev->wiphy.bands[band]->channels[i];
483 if (nl80211_msg_put_channel(msg, chan))
484 goto nla_put_failure;
486 nla_nest_end(msg, nl_freq);
489 nla_nest_end(msg, nl_freqs);
492 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
494 goto nla_put_failure;
496 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
497 nl_rate = nla_nest_start(msg, i);
499 goto nla_put_failure;
501 rate = &dev->wiphy.bands[band]->bitrates[i];
502 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
504 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
506 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
508 nla_nest_end(msg, nl_rate);
511 nla_nest_end(msg, nl_rates);
513 nla_nest_end(msg, nl_band);
515 nla_nest_end(msg, nl_bands);
517 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
519 goto nla_put_failure;
524 if (dev->ops->op) { \
526 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
530 CMD(add_virtual_intf, NEW_INTERFACE);
531 CMD(change_virtual_intf, SET_INTERFACE);
532 CMD(add_key, NEW_KEY);
533 CMD(add_beacon, NEW_BEACON);
534 CMD(add_station, NEW_STATION);
535 CMD(add_mpath, NEW_MPATH);
536 CMD(set_mesh_params, SET_MESH_PARAMS);
537 CMD(change_bss, SET_BSS);
538 CMD(auth, AUTHENTICATE);
539 CMD(assoc, ASSOCIATE);
540 CMD(deauth, DEAUTHENTICATE);
541 CMD(disassoc, DISASSOCIATE);
542 CMD(join_ibss, JOIN_IBSS);
543 if (dev->wiphy.netnsok) {
545 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
550 if (dev->ops->connect || dev->ops->auth) {
552 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
555 if (dev->ops->disconnect || dev->ops->deauth) {
557 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
560 nla_nest_end(msg, nl_cmds);
562 return genlmsg_end(msg, hdr);
565 genlmsg_cancel(msg, hdr);
569 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
572 int start = cb->args[0];
573 struct cfg80211_registered_device *dev;
575 mutex_lock(&cfg80211_mutex);
576 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
577 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
581 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
582 cb->nlh->nlmsg_seq, NLM_F_MULTI,
588 mutex_unlock(&cfg80211_mutex);
595 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
598 struct cfg80211_registered_device *dev;
600 dev = cfg80211_get_dev_from_info(info);
604 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
608 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
611 cfg80211_unlock_rdev(dev);
613 return genlmsg_reply(msg, info);
618 cfg80211_unlock_rdev(dev);
622 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
623 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
624 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
625 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
626 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
627 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
630 static int parse_txq_params(struct nlattr *tb[],
631 struct ieee80211_txq_params *txq_params)
633 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
634 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
635 !tb[NL80211_TXQ_ATTR_AIFS])
638 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
639 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
640 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
641 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
642 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
647 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
649 struct cfg80211_registered_device *rdev;
650 int result = 0, rem_txq_params = 0;
651 struct nlattr *nl_txq_params;
653 u8 retry_short = 0, retry_long = 0;
654 u32 frag_threshold = 0, rts_threshold = 0;
658 mutex_lock(&cfg80211_mutex);
660 rdev = __cfg80211_rdev_from_info(info);
662 mutex_unlock(&cfg80211_mutex);
663 result = PTR_ERR(rdev);
667 mutex_lock(&rdev->mtx);
669 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
670 result = cfg80211_dev_rename(
671 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
673 mutex_unlock(&cfg80211_mutex);
678 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
679 struct ieee80211_txq_params txq_params;
680 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
682 if (!rdev->ops->set_txq_params) {
683 result = -EOPNOTSUPP;
687 nla_for_each_nested(nl_txq_params,
688 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
690 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
691 nla_data(nl_txq_params),
692 nla_len(nl_txq_params),
694 result = parse_txq_params(tb, &txq_params);
698 result = rdev->ops->set_txq_params(&rdev->wiphy,
705 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
706 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
711 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
712 channel_type = nla_get_u32(info->attrs[
713 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
714 if (channel_type != NL80211_CHAN_NO_HT &&
715 channel_type != NL80211_CHAN_HT20 &&
716 channel_type != NL80211_CHAN_HT40PLUS &&
717 channel_type != NL80211_CHAN_HT40MINUS)
721 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
723 mutex_lock(&rdev->devlist_mtx);
724 result = rdev_set_freq(rdev, NULL, freq, channel_type);
725 mutex_unlock(&rdev->devlist_mtx);
732 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
733 retry_short = nla_get_u8(
734 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
735 if (retry_short == 0) {
739 changed |= WIPHY_PARAM_RETRY_SHORT;
742 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
743 retry_long = nla_get_u8(
744 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
745 if (retry_long == 0) {
749 changed |= WIPHY_PARAM_RETRY_LONG;
752 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
753 frag_threshold = nla_get_u32(
754 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
755 if (frag_threshold < 256) {
759 if (frag_threshold != (u32) -1) {
761 * Fragments (apart from the last one) are required to
762 * have even length. Make the fragmentation code
763 * simpler by stripping LSB should someone try to use
764 * odd threshold value.
766 frag_threshold &= ~0x1;
768 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
771 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
772 rts_threshold = nla_get_u32(
773 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
774 changed |= WIPHY_PARAM_RTS_THRESHOLD;
778 u8 old_retry_short, old_retry_long;
779 u32 old_frag_threshold, old_rts_threshold;
781 if (!rdev->ops->set_wiphy_params) {
782 result = -EOPNOTSUPP;
786 old_retry_short = rdev->wiphy.retry_short;
787 old_retry_long = rdev->wiphy.retry_long;
788 old_frag_threshold = rdev->wiphy.frag_threshold;
789 old_rts_threshold = rdev->wiphy.rts_threshold;
791 if (changed & WIPHY_PARAM_RETRY_SHORT)
792 rdev->wiphy.retry_short = retry_short;
793 if (changed & WIPHY_PARAM_RETRY_LONG)
794 rdev->wiphy.retry_long = retry_long;
795 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
796 rdev->wiphy.frag_threshold = frag_threshold;
797 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
798 rdev->wiphy.rts_threshold = rts_threshold;
800 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
802 rdev->wiphy.retry_short = old_retry_short;
803 rdev->wiphy.retry_long = old_retry_long;
804 rdev->wiphy.frag_threshold = old_frag_threshold;
805 rdev->wiphy.rts_threshold = old_rts_threshold;
810 mutex_unlock(&rdev->mtx);
817 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
818 struct cfg80211_registered_device *rdev,
819 struct net_device *dev)
823 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
827 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
828 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
829 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
830 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
832 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
833 rdev->devlist_generation ^
834 (cfg80211_rdev_list_generation << 2));
836 return genlmsg_end(msg, hdr);
839 genlmsg_cancel(msg, hdr);
843 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
847 int wp_start = cb->args[0];
848 int if_start = cb->args[1];
849 struct cfg80211_registered_device *rdev;
850 struct wireless_dev *wdev;
852 mutex_lock(&cfg80211_mutex);
853 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
854 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
856 if (wp_idx < wp_start) {
862 mutex_lock(&rdev->devlist_mtx);
863 list_for_each_entry(wdev, &rdev->netdev_list, list) {
864 if (if_idx < if_start) {
868 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
869 cb->nlh->nlmsg_seq, NLM_F_MULTI,
870 rdev, wdev->netdev) < 0) {
871 mutex_unlock(&rdev->devlist_mtx);
876 mutex_unlock(&rdev->devlist_mtx);
881 mutex_unlock(&cfg80211_mutex);
883 cb->args[0] = wp_idx;
884 cb->args[1] = if_idx;
889 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
892 struct cfg80211_registered_device *dev;
893 struct net_device *netdev;
896 err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev);
900 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
904 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
909 cfg80211_unlock_rdev(dev);
911 return genlmsg_reply(msg, info);
917 cfg80211_unlock_rdev(dev);
921 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
922 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
923 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
924 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
925 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
926 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
929 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
931 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
939 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
940 nla, mntr_flags_policy))
943 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
945 *mntrflags |= (1<<flag);
950 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
952 struct cfg80211_registered_device *rdev;
953 struct vif_params params;
955 enum nl80211_iftype otype, ntype;
956 struct net_device *dev;
957 u32 _flags, *flags = NULL;
960 memset(¶ms, 0, sizeof(params));
964 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
968 otype = ntype = dev->ieee80211_ptr->iftype;
970 if (info->attrs[NL80211_ATTR_IFTYPE]) {
971 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
974 if (ntype > NL80211_IFTYPE_MAX) {
980 if (!rdev->ops->change_virtual_intf ||
981 !(rdev->wiphy.interface_modes & (1 << ntype))) {
986 if (info->attrs[NL80211_ATTR_MESH_ID]) {
987 if (ntype != NL80211_IFTYPE_MESH_POINT) {
991 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
992 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
996 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
997 if (ntype != NL80211_IFTYPE_MONITOR) {
1001 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1011 err = rdev->ops->change_virtual_intf(&rdev->wiphy, dev,
1012 ntype, flags, ¶ms);
1016 WARN_ON(!err && dev->ieee80211_ptr->iftype != ntype);
1018 if (!err && (ntype != otype)) {
1019 if (otype == NL80211_IFTYPE_ADHOC)
1020 cfg80211_clear_ibss(dev, false);
1025 cfg80211_unlock_rdev(rdev);
1031 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1033 struct cfg80211_registered_device *rdev;
1034 struct vif_params params;
1036 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1039 memset(¶ms, 0, sizeof(params));
1041 if (!info->attrs[NL80211_ATTR_IFNAME])
1044 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1045 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1046 if (type > NL80211_IFTYPE_MAX)
1052 rdev = cfg80211_get_dev_from_info(info);
1054 err = PTR_ERR(rdev);
1058 if (!rdev->ops->add_virtual_intf ||
1059 !(rdev->wiphy.interface_modes & (1 << type))) {
1064 if (type == NL80211_IFTYPE_MESH_POINT &&
1065 info->attrs[NL80211_ATTR_MESH_ID]) {
1066 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1067 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1070 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1071 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1073 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
1074 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
1075 type, err ? NULL : &flags, ¶ms);
1078 cfg80211_unlock_rdev(rdev);
1084 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1086 struct cfg80211_registered_device *rdev;
1088 struct net_device *dev;
1092 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1096 if (!rdev->ops->del_virtual_intf) {
1101 err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
1104 cfg80211_unlock_rdev(rdev);
1111 struct get_key_cookie {
1112 struct sk_buff *msg;
1117 static void get_key_callback(void *c, struct key_params *params)
1120 struct get_key_cookie *cookie = c;
1123 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1124 params->key_len, params->key);
1127 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1128 params->seq_len, params->seq);
1131 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1134 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1136 goto nla_put_failure;
1139 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1140 params->key_len, params->key);
1143 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1144 params->seq_len, params->seq);
1147 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1150 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1152 nla_nest_end(cookie->msg, key);
1159 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1161 struct cfg80211_registered_device *rdev;
1163 struct net_device *dev;
1165 u8 *mac_addr = NULL;
1166 struct get_key_cookie cookie = {
1170 struct sk_buff *msg;
1172 if (info->attrs[NL80211_ATTR_KEY_IDX])
1173 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1178 if (info->attrs[NL80211_ATTR_MAC])
1179 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1183 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1187 if (!rdev->ops->get_key) {
1192 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1198 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1199 NL80211_CMD_NEW_KEY);
1207 cookie.idx = key_idx;
1209 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1210 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1212 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1214 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr,
1215 &cookie, get_key_callback);
1221 goto nla_put_failure;
1223 genlmsg_end(msg, hdr);
1224 err = genlmsg_reply(msg, info);
1232 cfg80211_unlock_rdev(rdev);
1240 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1242 struct cfg80211_registered_device *rdev;
1243 struct key_parse key;
1245 struct net_device *dev;
1246 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1249 err = nl80211_parse_key(info, &key);
1256 /* only support setting default key */
1257 if (!key.def && !key.defmgmt)
1262 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1267 func = rdev->ops->set_default_key;
1269 func = rdev->ops->set_default_mgmt_key;
1276 wdev_lock(dev->ieee80211_ptr);
1277 err = nl80211_key_allowed(dev->ieee80211_ptr);
1279 err = func(&rdev->wiphy, dev, key.idx);
1281 #ifdef CONFIG_WIRELESS_EXT
1283 if (func == rdev->ops->set_default_key)
1284 dev->ieee80211_ptr->wext.default_key = key.idx;
1286 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
1289 wdev_unlock(dev->ieee80211_ptr);
1292 cfg80211_unlock_rdev(rdev);
1301 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1303 struct cfg80211_registered_device *rdev;
1305 struct net_device *dev;
1306 struct key_parse key;
1307 u8 *mac_addr = NULL;
1309 err = nl80211_parse_key(info, &key);
1316 if (info->attrs[NL80211_ATTR_MAC])
1317 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1321 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1325 if (!rdev->ops->add_key) {
1330 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) {
1335 wdev_lock(dev->ieee80211_ptr);
1336 err = nl80211_key_allowed(dev->ieee80211_ptr);
1338 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1340 wdev_unlock(dev->ieee80211_ptr);
1343 cfg80211_unlock_rdev(rdev);
1351 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1353 struct cfg80211_registered_device *rdev;
1355 struct net_device *dev;
1356 u8 *mac_addr = NULL;
1357 struct key_parse key;
1359 err = nl80211_parse_key(info, &key);
1363 if (info->attrs[NL80211_ATTR_MAC])
1364 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1368 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1372 if (!rdev->ops->del_key) {
1377 wdev_lock(dev->ieee80211_ptr);
1378 err = nl80211_key_allowed(dev->ieee80211_ptr);
1380 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr);
1382 #ifdef CONFIG_WIRELESS_EXT
1384 if (key.idx == dev->ieee80211_ptr->wext.default_key)
1385 dev->ieee80211_ptr->wext.default_key = -1;
1386 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1387 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1390 wdev_unlock(dev->ieee80211_ptr);
1393 cfg80211_unlock_rdev(rdev);
1402 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1404 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1405 struct beacon_parameters *info);
1406 struct cfg80211_registered_device *rdev;
1408 struct net_device *dev;
1409 struct beacon_parameters params;
1412 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1417 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1421 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1426 switch (info->genlhdr->cmd) {
1427 case NL80211_CMD_NEW_BEACON:
1428 /* these are required for NEW_BEACON */
1429 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1430 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1431 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1436 call = rdev->ops->add_beacon;
1438 case NL80211_CMD_SET_BEACON:
1439 call = rdev->ops->set_beacon;
1452 memset(¶ms, 0, sizeof(params));
1454 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1456 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1460 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1461 params.dtim_period =
1462 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1466 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1467 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1469 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1473 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1474 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1476 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1485 err = call(&rdev->wiphy, dev, ¶ms);
1488 cfg80211_unlock_rdev(rdev);
1496 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1498 struct cfg80211_registered_device *rdev;
1500 struct net_device *dev;
1504 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1508 if (!rdev->ops->del_beacon) {
1513 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1517 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
1520 cfg80211_unlock_rdev(rdev);
1528 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1529 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1530 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1531 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1532 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
1535 static int parse_station_flags(struct genl_info *info,
1536 struct station_parameters *params)
1538 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1543 * Try parsing the new attribute first so userspace
1544 * can specify both for older kernels.
1546 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1548 struct nl80211_sta_flag_update *sta_flags;
1550 sta_flags = nla_data(nla);
1551 params->sta_flags_mask = sta_flags->mask;
1552 params->sta_flags_set = sta_flags->set;
1553 if ((params->sta_flags_mask |
1554 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1559 /* if present, parse the old attribute */
1561 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
1565 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1566 nla, sta_flags_policy))
1569 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1570 params->sta_flags_mask &= ~1;
1572 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1574 params->sta_flags_set |= (1<<flag);
1579 static u16 nl80211_calculate_bitrate(struct rate_info *rate)
1581 int modulation, streams, bitrate;
1583 if (!(rate->flags & RATE_INFO_FLAGS_MCS))
1584 return rate->legacy;
1586 /* the formula below does only work for MCS values smaller than 32 */
1587 if (rate->mcs >= 32)
1590 modulation = rate->mcs & 7;
1591 streams = (rate->mcs >> 3) + 1;
1593 bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ?
1597 bitrate *= (modulation + 1);
1598 else if (modulation == 4)
1599 bitrate *= (modulation + 2);
1601 bitrate *= (modulation + 3);
1605 if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
1606 bitrate = (bitrate / 9) * 10;
1608 /* do NOT round down here */
1609 return (bitrate + 50000) / 100000;
1612 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1613 int flags, struct net_device *dev,
1614 u8 *mac_addr, struct station_info *sinfo)
1617 struct nlattr *sinfoattr, *txrate;
1620 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1624 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1625 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1627 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1629 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1631 goto nla_put_failure;
1632 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1633 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1634 sinfo->inactive_time);
1635 if (sinfo->filled & STATION_INFO_RX_BYTES)
1636 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1638 if (sinfo->filled & STATION_INFO_TX_BYTES)
1639 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1641 if (sinfo->filled & STATION_INFO_LLID)
1642 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1644 if (sinfo->filled & STATION_INFO_PLID)
1645 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1647 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1648 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1649 sinfo->plink_state);
1650 if (sinfo->filled & STATION_INFO_SIGNAL)
1651 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1653 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1654 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1656 goto nla_put_failure;
1658 /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */
1659 bitrate = nl80211_calculate_bitrate(&sinfo->txrate);
1661 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1663 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1664 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1666 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1667 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1668 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1669 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1671 nla_nest_end(msg, txrate);
1673 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1674 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1676 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1677 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1679 nla_nest_end(msg, sinfoattr);
1681 return genlmsg_end(msg, hdr);
1684 genlmsg_cancel(msg, hdr);
1688 static int nl80211_dump_station(struct sk_buff *skb,
1689 struct netlink_callback *cb)
1691 struct station_info sinfo;
1692 struct cfg80211_registered_device *dev;
1693 struct net_device *netdev;
1694 u8 mac_addr[ETH_ALEN];
1695 int ifidx = cb->args[0];
1696 int sta_idx = cb->args[1];
1700 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1701 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1706 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1709 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1716 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1722 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
1728 if (!dev->ops->dump_station) {
1734 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1741 if (nl80211_send_station(skb,
1742 NETLINK_CB(cb->skb).pid,
1743 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1753 cb->args[1] = sta_idx;
1756 cfg80211_unlock_rdev(dev);
1763 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1765 struct cfg80211_registered_device *rdev;
1767 struct net_device *dev;
1768 struct station_info sinfo;
1769 struct sk_buff *msg;
1770 u8 *mac_addr = NULL;
1772 memset(&sinfo, 0, sizeof(sinfo));
1774 if (!info->attrs[NL80211_ATTR_MAC])
1777 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1781 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1785 if (!rdev->ops->get_station) {
1790 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
1794 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1798 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1799 dev, mac_addr, &sinfo) < 0)
1802 err = genlmsg_reply(msg, info);
1808 cfg80211_unlock_rdev(rdev);
1817 * Get vlan interface making sure it is on the right wiphy.
1819 static int get_vlan(struct genl_info *info,
1820 struct cfg80211_registered_device *rdev,
1821 struct net_device **vlan)
1823 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
1827 *vlan = dev_get_by_index(genl_info_net(info),
1828 nla_get_u32(vlanattr));
1831 if (!(*vlan)->ieee80211_ptr)
1833 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1839 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1841 struct cfg80211_registered_device *rdev;
1843 struct net_device *dev;
1844 struct station_parameters params;
1845 u8 *mac_addr = NULL;
1847 memset(¶ms, 0, sizeof(params));
1849 params.listen_interval = -1;
1851 if (info->attrs[NL80211_ATTR_STA_AID])
1854 if (!info->attrs[NL80211_ATTR_MAC])
1857 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1859 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1860 params.supported_rates =
1861 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1862 params.supported_rates_len =
1863 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1866 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1867 params.listen_interval =
1868 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1870 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1872 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1874 if (parse_station_flags(info, ¶ms))
1877 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1878 params.plink_action =
1879 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1883 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
1887 err = get_vlan(info, rdev, ¶ms.vlan);
1891 /* validate settings */
1894 switch (dev->ieee80211_ptr->iftype) {
1895 case NL80211_IFTYPE_AP:
1896 case NL80211_IFTYPE_AP_VLAN:
1897 /* disallow mesh-specific things */
1898 if (params.plink_action)
1901 case NL80211_IFTYPE_STATION:
1902 /* disallow everything but AUTHORIZED flag */
1903 if (params.plink_action)
1907 if (params.supported_rates)
1911 if (params.listen_interval >= 0)
1913 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
1916 case NL80211_IFTYPE_MESH_POINT:
1917 /* disallow things mesh doesn't support */
1922 if (params.listen_interval >= 0)
1924 if (params.supported_rates)
1926 if (params.sta_flags_mask)
1936 if (!rdev->ops->change_station) {
1941 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
1945 dev_put(params.vlan);
1946 cfg80211_unlock_rdev(rdev);
1954 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1956 struct cfg80211_registered_device *rdev;
1958 struct net_device *dev;
1959 struct station_parameters params;
1960 u8 *mac_addr = NULL;
1962 memset(¶ms, 0, sizeof(params));
1964 if (!info->attrs[NL80211_ATTR_MAC])
1967 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1970 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1973 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1974 params.supported_rates =
1975 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1976 params.supported_rates_len =
1977 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1978 params.listen_interval =
1979 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1981 if (info->attrs[NL80211_ATTR_STA_AID]) {
1982 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
1983 if (!params.aid || params.aid > IEEE80211_MAX_AID)
1987 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1989 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1991 if (parse_station_flags(info, ¶ms))
1996 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2000 err = get_vlan(info, rdev, ¶ms.vlan);
2004 /* validate settings */
2007 switch (dev->ieee80211_ptr->iftype) {
2008 case NL80211_IFTYPE_AP:
2009 case NL80211_IFTYPE_AP_VLAN:
2010 /* all ok but must have AID */
2014 case NL80211_IFTYPE_MESH_POINT:
2015 /* disallow things mesh doesn't support */
2022 if (params.listen_interval >= 0)
2024 if (params.supported_rates)
2026 if (params.sta_flags_mask)
2036 if (!rdev->ops->add_station) {
2041 if (!netif_running(dev)) {
2046 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
2050 dev_put(params.vlan);
2051 cfg80211_unlock_rdev(rdev);
2059 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2061 struct cfg80211_registered_device *rdev;
2063 struct net_device *dev;
2064 u8 *mac_addr = NULL;
2066 if (info->attrs[NL80211_ATTR_MAC])
2067 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2071 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2075 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2076 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2077 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2082 if (!rdev->ops->del_station) {
2087 err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
2090 cfg80211_unlock_rdev(rdev);
2098 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2099 int flags, struct net_device *dev,
2100 u8 *dst, u8 *next_hop,
2101 struct mpath_info *pinfo)
2104 struct nlattr *pinfoattr;
2106 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2110 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2111 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2112 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2114 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2116 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2118 goto nla_put_failure;
2119 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2120 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2122 if (pinfo->filled & MPATH_INFO_DSN)
2123 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
2125 if (pinfo->filled & MPATH_INFO_METRIC)
2126 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2128 if (pinfo->filled & MPATH_INFO_EXPTIME)
2129 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2131 if (pinfo->filled & MPATH_INFO_FLAGS)
2132 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2134 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2135 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2136 pinfo->discovery_timeout);
2137 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2138 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2139 pinfo->discovery_retries);
2141 nla_nest_end(msg, pinfoattr);
2143 return genlmsg_end(msg, hdr);
2146 genlmsg_cancel(msg, hdr);
2150 static int nl80211_dump_mpath(struct sk_buff *skb,
2151 struct netlink_callback *cb)
2153 struct mpath_info pinfo;
2154 struct cfg80211_registered_device *dev;
2155 struct net_device *netdev;
2157 u8 next_hop[ETH_ALEN];
2158 int ifidx = cb->args[0];
2159 int path_idx = cb->args[1];
2163 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
2164 nl80211_fam.attrbuf, nl80211_fam.maxattr,
2169 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
2172 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
2179 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
2185 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
2191 if (!dev->ops->dump_mpath) {
2196 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2202 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2203 dst, next_hop, &pinfo);
2209 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2210 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2211 netdev, dst, next_hop,
2220 cb->args[1] = path_idx;
2223 cfg80211_unlock_rdev(dev);
2230 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2232 struct cfg80211_registered_device *rdev;
2234 struct net_device *dev;
2235 struct mpath_info pinfo;
2236 struct sk_buff *msg;
2238 u8 next_hop[ETH_ALEN];
2240 memset(&pinfo, 0, sizeof(pinfo));
2242 if (!info->attrs[NL80211_ATTR_MAC])
2245 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2249 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2253 if (!rdev->ops->get_mpath) {
2258 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2263 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2267 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2271 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2272 dev, dst, next_hop, &pinfo) < 0)
2275 err = genlmsg_reply(msg, info);
2281 cfg80211_unlock_rdev(rdev);
2289 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2291 struct cfg80211_registered_device *rdev;
2293 struct net_device *dev;
2295 u8 *next_hop = NULL;
2297 if (!info->attrs[NL80211_ATTR_MAC])
2300 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2303 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2304 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2308 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2312 if (!rdev->ops->change_mpath) {
2317 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2322 if (!netif_running(dev)) {
2327 err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2330 cfg80211_unlock_rdev(rdev);
2337 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2339 struct cfg80211_registered_device *rdev;
2341 struct net_device *dev;
2343 u8 *next_hop = NULL;
2345 if (!info->attrs[NL80211_ATTR_MAC])
2348 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2351 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2352 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2356 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2360 if (!rdev->ops->add_mpath) {
2365 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2370 if (!netif_running(dev)) {
2375 err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2378 cfg80211_unlock_rdev(rdev);
2386 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2388 struct cfg80211_registered_device *rdev;
2390 struct net_device *dev;
2393 if (info->attrs[NL80211_ATTR_MAC])
2394 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2398 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2402 if (!rdev->ops->del_mpath) {
2407 err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2410 cfg80211_unlock_rdev(rdev);
2418 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2420 struct cfg80211_registered_device *rdev;
2422 struct net_device *dev;
2423 struct bss_parameters params;
2425 memset(¶ms, 0, sizeof(params));
2426 /* default to not changing parameters */
2427 params.use_cts_prot = -1;
2428 params.use_short_preamble = -1;
2429 params.use_short_slot_time = -1;
2431 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2432 params.use_cts_prot =
2433 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2434 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2435 params.use_short_preamble =
2436 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2437 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2438 params.use_short_slot_time =
2439 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2440 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2441 params.basic_rates =
2442 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2443 params.basic_rates_len =
2444 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2449 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2453 if (!rdev->ops->change_bss) {
2458 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2463 err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2466 cfg80211_unlock_rdev(rdev);
2474 static const struct nla_policy
2475 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2476 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2477 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2478 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2479 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2480 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2481 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2484 static int parse_reg_rule(struct nlattr *tb[],
2485 struct ieee80211_reg_rule *reg_rule)
2487 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2488 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2490 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2492 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2494 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2496 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2498 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2501 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2503 freq_range->start_freq_khz =
2504 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2505 freq_range->end_freq_khz =
2506 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2507 freq_range->max_bandwidth_khz =
2508 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2510 power_rule->max_eirp =
2511 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2513 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2514 power_rule->max_antenna_gain =
2515 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2520 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2526 * You should only get this when cfg80211 hasn't yet initialized
2527 * completely when built-in to the kernel right between the time
2528 * window between nl80211_init() and regulatory_init(), if that is
2531 mutex_lock(&cfg80211_mutex);
2532 if (unlikely(!cfg80211_regdomain)) {
2533 mutex_unlock(&cfg80211_mutex);
2534 return -EINPROGRESS;
2536 mutex_unlock(&cfg80211_mutex);
2538 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2541 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2543 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
2544 /* We ignore world regdom requests with the old regdom setup */
2545 if (is_world_regdom(data))
2549 r = regulatory_hint_user(data);
2554 static int nl80211_get_mesh_params(struct sk_buff *skb,
2555 struct genl_info *info)
2557 struct cfg80211_registered_device *rdev;
2558 struct mesh_config cur_params;
2560 struct net_device *dev;
2562 struct nlattr *pinfoattr;
2563 struct sk_buff *msg;
2567 /* Look up our device */
2568 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2572 if (!rdev->ops->get_mesh_params) {
2577 /* Get the mesh params */
2578 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
2582 /* Draw up a netlink message to send back */
2583 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2588 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2589 NL80211_CMD_GET_MESH_PARAMS);
2591 goto nla_put_failure;
2592 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2594 goto nla_put_failure;
2595 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2596 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2597 cur_params.dot11MeshRetryTimeout);
2598 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2599 cur_params.dot11MeshConfirmTimeout);
2600 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2601 cur_params.dot11MeshHoldingTimeout);
2602 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2603 cur_params.dot11MeshMaxPeerLinks);
2604 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2605 cur_params.dot11MeshMaxRetries);
2606 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2607 cur_params.dot11MeshTTL);
2608 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2609 cur_params.auto_open_plinks);
2610 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2611 cur_params.dot11MeshHWMPmaxPREQretries);
2612 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2613 cur_params.path_refresh_time);
2614 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2615 cur_params.min_discovery_timeout);
2616 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2617 cur_params.dot11MeshHWMPactivePathTimeout);
2618 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2619 cur_params.dot11MeshHWMPpreqMinInterval);
2620 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2621 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2622 nla_nest_end(msg, pinfoattr);
2623 genlmsg_end(msg, hdr);
2624 err = genlmsg_reply(msg, info);
2628 genlmsg_cancel(msg, hdr);
2632 cfg80211_unlock_rdev(rdev);
2640 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2642 if (table[attr_num]) {\
2643 cfg.param = nla_fn(table[attr_num]); \
2644 mask |= (1 << (attr_num - 1)); \
2648 static struct nla_policy
2649 nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
2650 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2651 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2652 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2653 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2654 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2655 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2656 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2658 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2659 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2660 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2661 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2662 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2663 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2666 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2670 struct cfg80211_registered_device *rdev;
2671 struct net_device *dev;
2672 struct mesh_config cfg;
2673 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2674 struct nlattr *parent_attr;
2676 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2679 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2680 parent_attr, nl80211_meshconf_params_policy))
2685 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2689 if (!rdev->ops->set_mesh_params) {
2694 /* This makes sure that there aren't more than 32 mesh config
2695 * parameters (otherwise our bitfield scheme would not work.) */
2696 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2698 /* Fill in the params struct */
2700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2701 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2702 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2703 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2705 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2707 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2708 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2709 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2710 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2711 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2712 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2713 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2714 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2715 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2718 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2720 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2722 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2723 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2725 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2726 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2729 dot11MeshHWMPnetDiameterTraversalTime,
2730 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2734 err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
2738 cfg80211_unlock_rdev(rdev);
2746 #undef FILL_IN_MESH_PARAM_IF_SET
2748 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2750 struct sk_buff *msg;
2752 struct nlattr *nl_reg_rules;
2756 mutex_lock(&cfg80211_mutex);
2758 if (!cfg80211_regdomain)
2761 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2767 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2768 NL80211_CMD_GET_REG);
2770 goto nla_put_failure;
2772 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2773 cfg80211_regdomain->alpha2);
2775 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2777 goto nla_put_failure;
2779 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2780 struct nlattr *nl_reg_rule;
2781 const struct ieee80211_reg_rule *reg_rule;
2782 const struct ieee80211_freq_range *freq_range;
2783 const struct ieee80211_power_rule *power_rule;
2785 reg_rule = &cfg80211_regdomain->reg_rules[i];
2786 freq_range = ®_rule->freq_range;
2787 power_rule = ®_rule->power_rule;
2789 nl_reg_rule = nla_nest_start(msg, i);
2791 goto nla_put_failure;
2793 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2795 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2796 freq_range->start_freq_khz);
2797 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2798 freq_range->end_freq_khz);
2799 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2800 freq_range->max_bandwidth_khz);
2801 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2802 power_rule->max_antenna_gain);
2803 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2804 power_rule->max_eirp);
2806 nla_nest_end(msg, nl_reg_rule);
2809 nla_nest_end(msg, nl_reg_rules);
2811 genlmsg_end(msg, hdr);
2812 err = genlmsg_reply(msg, info);
2816 genlmsg_cancel(msg, hdr);
2819 mutex_unlock(&cfg80211_mutex);
2823 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2825 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2826 struct nlattr *nl_reg_rule;
2827 char *alpha2 = NULL;
2828 int rem_reg_rules = 0, r = 0;
2829 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2830 struct ieee80211_regdomain *rd = NULL;
2832 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2835 if (!info->attrs[NL80211_ATTR_REG_RULES])
2838 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2840 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2843 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2847 mutex_lock(&cfg80211_mutex);
2849 if (!reg_is_valid_request(alpha2)) {
2854 size_of_regd = sizeof(struct ieee80211_regdomain) +
2855 (num_rules * sizeof(struct ieee80211_reg_rule));
2857 rd = kzalloc(size_of_regd, GFP_KERNEL);
2863 rd->n_reg_rules = num_rules;
2864 rd->alpha2[0] = alpha2[0];
2865 rd->alpha2[1] = alpha2[1];
2867 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2869 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2870 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2872 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2878 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2884 BUG_ON(rule_idx != num_rules);
2888 mutex_unlock(&cfg80211_mutex);
2893 mutex_unlock(&cfg80211_mutex);
2898 static int validate_scan_freqs(struct nlattr *freqs)
2900 struct nlattr *attr1, *attr2;
2901 int n_channels = 0, tmp1, tmp2;
2903 nla_for_each_nested(attr1, freqs, tmp1) {
2906 * Some hardware has a limited channel list for
2907 * scanning, and it is pretty much nonsensical
2908 * to scan for a channel twice, so disallow that
2909 * and don't require drivers to check that the
2910 * channel list they get isn't longer than what
2911 * they can scan, as long as they can scan all
2912 * the channels they registered at once.
2914 nla_for_each_nested(attr2, freqs, tmp2)
2915 if (attr1 != attr2 &&
2916 nla_get_u32(attr1) == nla_get_u32(attr2))
2923 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2925 struct cfg80211_registered_device *rdev;
2926 struct net_device *dev;
2927 struct cfg80211_scan_request *request;
2928 struct cfg80211_ssid *ssid;
2929 struct ieee80211_channel *channel;
2930 struct nlattr *attr;
2931 struct wiphy *wiphy;
2932 int err, tmp, n_ssids = 0, n_channels, i;
2933 enum ieee80211_band band;
2936 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2941 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2945 wiphy = &rdev->wiphy;
2947 if (!rdev->ops->scan) {
2952 if (!netif_running(dev)) {
2957 if (rdev->scan_req) {
2962 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2963 n_channels = validate_scan_freqs(
2964 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
2972 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2973 if (wiphy->bands[band])
2974 n_channels += wiphy->bands[band]->n_channels;
2977 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2978 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2981 if (n_ssids > wiphy->max_scan_ssids) {
2986 if (info->attrs[NL80211_ATTR_IE])
2987 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2991 if (ie_len > wiphy->max_scan_ie_len) {
2996 request = kzalloc(sizeof(*request)
2997 + sizeof(*ssid) * n_ssids
2998 + sizeof(channel) * n_channels
2999 + ie_len, GFP_KERNEL);
3005 request->n_channels = n_channels;
3007 request->ssids = (void *)&request->channels[n_channels];
3008 request->n_ssids = n_ssids;
3011 request->ie = (void *)(request->ssids + n_ssids);
3013 request->ie = (void *)(request->channels + n_channels);
3016 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3017 /* user specified, bail out if channel not found */
3018 request->n_channels = n_channels;
3020 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
3021 request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3022 if (!request->channels[i]) {
3031 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3033 if (!wiphy->bands[band])
3035 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3036 request->channels[i] = &wiphy->bands[band]->channels[j];
3043 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3044 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3045 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3049 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3050 request->ssids[i].ssid_len = nla_len(attr);
3055 if (info->attrs[NL80211_ATTR_IE]) {
3056 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3057 memcpy((void *)request->ie,
3058 nla_data(info->attrs[NL80211_ATTR_IE]),
3063 request->wiphy = &rdev->wiphy;
3065 rdev->scan_req = request;
3066 err = rdev->ops->scan(&rdev->wiphy, dev, request);
3069 nl80211_send_scan_start(rdev, dev);
3075 rdev->scan_req = NULL;
3079 cfg80211_unlock_rdev(rdev);
3087 static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3088 struct cfg80211_registered_device *rdev,
3089 struct wireless_dev *wdev,
3090 struct cfg80211_internal_bss *intbss)
3092 struct cfg80211_bss *res = &intbss->pub;
3097 ASSERT_WDEV_LOCK(wdev);
3099 hdr = nl80211hdr_put(msg, pid, seq, flags,
3100 NL80211_CMD_NEW_SCAN_RESULTS);
3104 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
3105 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
3107 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3109 goto nla_put_failure;
3110 if (!is_zero_ether_addr(res->bssid))
3111 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3112 if (res->information_elements && res->len_information_elements)
3113 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3114 res->len_information_elements,
3115 res->information_elements);
3117 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3118 if (res->beacon_interval)
3119 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3120 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3121 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
3123 switch (rdev->wiphy.signal_type) {
3124 case CFG80211_SIGNAL_TYPE_MBM:
3125 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3127 case CFG80211_SIGNAL_TYPE_UNSPEC:
3128 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3134 switch (wdev->iftype) {
3135 case NL80211_IFTYPE_STATION:
3136 if (intbss == wdev->current_bss)
3137 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3138 NL80211_BSS_STATUS_ASSOCIATED);
3139 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3140 if (intbss != wdev->auth_bsses[i])
3142 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3143 NL80211_BSS_STATUS_AUTHENTICATED);
3147 case NL80211_IFTYPE_ADHOC:
3148 if (intbss == wdev->current_bss)
3149 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3150 NL80211_BSS_STATUS_IBSS_JOINED);
3156 nla_nest_end(msg, bss);
3158 return genlmsg_end(msg, hdr);
3161 genlmsg_cancel(msg, hdr);
3165 static int nl80211_dump_scan(struct sk_buff *skb,
3166 struct netlink_callback *cb)
3168 struct cfg80211_registered_device *rdev;
3169 struct net_device *dev;
3170 struct cfg80211_internal_bss *scan;
3171 struct wireless_dev *wdev;
3172 int ifidx = cb->args[0];
3173 int start = cb->args[1], idx = 0;
3177 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
3178 nl80211_fam.attrbuf, nl80211_fam.maxattr,
3183 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
3186 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
3189 cb->args[0] = ifidx;
3192 dev = dev_get_by_index(sock_net(skb->sk), ifidx);
3196 rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3198 err = PTR_ERR(rdev);
3199 goto out_put_netdev;
3202 wdev = dev->ieee80211_ptr;
3205 spin_lock_bh(&rdev->bss_lock);
3206 cfg80211_bss_expire(rdev);
3208 list_for_each_entry(scan, &rdev->bss_list, list) {
3211 if (nl80211_send_bss(skb,
3212 NETLINK_CB(cb->skb).pid,
3213 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3214 rdev, wdev, scan) < 0) {
3221 spin_unlock_bh(&rdev->bss_lock);
3226 cfg80211_unlock_rdev(rdev);
3233 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3235 return auth_type <= NL80211_AUTHTYPE_MAX;
3238 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3240 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3241 NL80211_WPA_VERSION_2));
3244 static bool nl80211_valid_akm_suite(u32 akm)
3246 return akm == WLAN_AKM_SUITE_8021X ||
3247 akm == WLAN_AKM_SUITE_PSK;
3250 static bool nl80211_valid_cipher_suite(u32 cipher)
3252 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3253 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3254 cipher == WLAN_CIPHER_SUITE_TKIP ||
3255 cipher == WLAN_CIPHER_SUITE_CCMP ||
3256 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
3260 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3262 struct cfg80211_registered_device *rdev;
3263 struct net_device *dev;
3264 struct ieee80211_channel *chan;
3265 const u8 *bssid, *ssid, *ie = NULL;
3266 int err, ssid_len, ie_len = 0;
3267 enum nl80211_auth_type auth_type;
3268 struct key_parse key;
3270 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3273 if (!info->attrs[NL80211_ATTR_MAC])
3276 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3279 if (!info->attrs[NL80211_ATTR_SSID])
3282 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3285 err = nl80211_parse_key(info, &key);
3290 if (!key.p.key || !key.p.key_len)
3292 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3293 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3294 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3295 key.p.key_len != WLAN_KEY_LEN_WEP104))
3306 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3310 if (!rdev->ops->auth) {
3315 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3320 if (!netif_running(dev)) {
3325 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3326 chan = ieee80211_get_channel(&rdev->wiphy,
3327 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3328 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3333 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3334 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3336 if (info->attrs[NL80211_ATTR_IE]) {
3337 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3338 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3341 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3342 if (!nl80211_valid_auth_type(auth_type)) {
3347 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3348 ssid, ssid_len, ie, ie_len,
3349 key.p.key, key.p.key_len, key.idx);
3352 cfg80211_unlock_rdev(rdev);
3359 static int nl80211_crypto_settings(struct genl_info *info,
3360 struct cfg80211_crypto_settings *settings,
3363 memset(settings, 0, sizeof(*settings));
3365 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3367 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3371 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3372 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3373 settings->n_ciphers_pairwise = len / sizeof(u32);
3375 if (len % sizeof(u32))
3378 if (settings->n_ciphers_pairwise > cipher_limit)
3381 memcpy(settings->ciphers_pairwise, data, len);
3383 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3384 if (!nl80211_valid_cipher_suite(
3385 settings->ciphers_pairwise[i]))
3389 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3390 settings->cipher_group =
3391 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3392 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3396 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3397 settings->wpa_versions =
3398 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3399 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3403 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3407 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3408 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3409 settings->n_akm_suites = len / sizeof(u32);
3411 if (len % sizeof(u32))
3414 memcpy(settings->akm_suites, data, len);
3416 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3417 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3424 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3426 struct cfg80211_registered_device *rdev;
3427 struct net_device *dev;
3428 struct cfg80211_crypto_settings crypto;
3429 struct ieee80211_channel *chan, *fixedchan;
3430 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
3431 int err, ssid_len, ie_len = 0;
3432 bool use_mfp = false;
3434 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3437 if (!info->attrs[NL80211_ATTR_MAC] ||
3438 !info->attrs[NL80211_ATTR_SSID] ||
3439 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
3444 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3448 if (!rdev->ops->assoc) {
3453 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3458 if (!netif_running(dev)) {
3463 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3465 chan = ieee80211_get_channel(&rdev->wiphy,
3466 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3467 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3472 mutex_lock(&rdev->devlist_mtx);
3473 fixedchan = rdev_fixed_channel(rdev, NULL);
3474 if (fixedchan && chan != fixedchan) {
3476 mutex_unlock(&rdev->devlist_mtx);
3479 mutex_unlock(&rdev->devlist_mtx);
3481 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3482 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3484 if (info->attrs[NL80211_ATTR_IE]) {
3485 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3486 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3489 if (info->attrs[NL80211_ATTR_USE_MFP]) {
3490 enum nl80211_mfp mfp =
3491 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
3492 if (mfp == NL80211_MFP_REQUIRED)
3494 else if (mfp != NL80211_MFP_NO) {
3500 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3501 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3503 err = nl80211_crypto_settings(info, &crypto, 1);
3505 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3506 ssid, ssid_len, ie, ie_len, use_mfp,
3510 cfg80211_unlock_rdev(rdev);
3517 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3519 struct cfg80211_registered_device *rdev;
3520 struct net_device *dev;
3521 const u8 *ie = NULL, *bssid;
3522 int err, ie_len = 0;
3525 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3528 if (!info->attrs[NL80211_ATTR_MAC])
3531 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3536 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3540 if (!rdev->ops->deauth) {
3545 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3550 if (!netif_running(dev)) {
3555 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3557 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3558 if (reason_code == 0) {
3559 /* Reason Code 0 is reserved */
3564 if (info->attrs[NL80211_ATTR_IE]) {
3565 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3566 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3569 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code);
3572 cfg80211_unlock_rdev(rdev);
3579 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3581 struct cfg80211_registered_device *rdev;
3582 struct net_device *dev;
3583 const u8 *ie = NULL, *bssid;
3584 int err, ie_len = 0;
3587 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3590 if (!info->attrs[NL80211_ATTR_MAC])
3593 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3598 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3602 if (!rdev->ops->disassoc) {
3607 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3612 if (!netif_running(dev)) {
3617 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3619 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3620 if (reason_code == 0) {
3621 /* Reason Code 0 is reserved */
3626 if (info->attrs[NL80211_ATTR_IE]) {
3627 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3628 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3631 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code);
3634 cfg80211_unlock_rdev(rdev);
3641 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3643 struct cfg80211_registered_device *rdev;
3644 struct net_device *dev;
3645 struct cfg80211_ibss_params ibss;
3646 struct wiphy *wiphy;
3647 struct cfg80211_cached_keys *connkeys = NULL;
3650 memset(&ibss, 0, sizeof(ibss));
3652 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3655 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3656 !info->attrs[NL80211_ATTR_SSID] ||
3657 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3660 ibss.beacon_interval = 100;
3662 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3663 ibss.beacon_interval =
3664 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3665 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3671 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3675 if (!rdev->ops->join_ibss) {
3680 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3685 if (!netif_running(dev)) {
3690 wiphy = &rdev->wiphy;
3692 if (info->attrs[NL80211_ATTR_MAC])
3693 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3694 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3695 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3697 if (info->attrs[NL80211_ATTR_IE]) {
3698 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3699 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3702 ibss.channel = ieee80211_get_channel(wiphy,
3703 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3704 if (!ibss.channel ||
3705 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3706 ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
3711 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
3712 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3714 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3715 connkeys = nl80211_parse_connkeys(rdev,
3716 info->attrs[NL80211_ATTR_KEYS]);
3717 if (IS_ERR(connkeys)) {
3718 err = PTR_ERR(connkeys);
3724 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
3727 cfg80211_unlock_rdev(rdev);
3736 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3738 struct cfg80211_registered_device *rdev;
3739 struct net_device *dev;
3744 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3748 if (!rdev->ops->leave_ibss) {
3753 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3758 if (!netif_running(dev)) {
3763 err = cfg80211_leave_ibss(rdev, dev, false);
3766 cfg80211_unlock_rdev(rdev);
3773 #ifdef CONFIG_NL80211_TESTMODE
3774 static struct genl_multicast_group nl80211_testmode_mcgrp = {
3778 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3780 struct cfg80211_registered_device *rdev;
3783 if (!info->attrs[NL80211_ATTR_TESTDATA])
3788 rdev = cfg80211_get_dev_from_info(info);
3790 err = PTR_ERR(rdev);
3795 if (rdev->ops->testmode_cmd) {
3796 rdev->testmode_info = info;
3797 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3798 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3799 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3800 rdev->testmode_info = NULL;
3803 cfg80211_unlock_rdev(rdev);
3810 static struct sk_buff *
3811 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3812 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3814 struct sk_buff *skb;
3816 struct nlattr *data;
3818 skb = nlmsg_new(approxlen + 100, gfp);
3822 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3828 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3829 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3831 ((void **)skb->cb)[0] = rdev;
3832 ((void **)skb->cb)[1] = hdr;
3833 ((void **)skb->cb)[2] = data;
3842 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3845 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3847 if (WARN_ON(!rdev->testmode_info))
3850 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3851 rdev->testmode_info->snd_pid,
3852 rdev->testmode_info->snd_seq,
3855 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3857 int cfg80211_testmode_reply(struct sk_buff *skb)
3859 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3860 void *hdr = ((void **)skb->cb)[1];
3861 struct nlattr *data = ((void **)skb->cb)[2];
3863 if (WARN_ON(!rdev->testmode_info)) {
3868 nla_nest_end(skb, data);
3869 genlmsg_end(skb, hdr);
3870 return genlmsg_reply(skb, rdev->testmode_info);
3872 EXPORT_SYMBOL(cfg80211_testmode_reply);
3874 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3875 int approxlen, gfp_t gfp)
3877 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3879 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3881 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3883 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3885 void *hdr = ((void **)skb->cb)[1];
3886 struct nlattr *data = ((void **)skb->cb)[2];
3888 nla_nest_end(skb, data);
3889 genlmsg_end(skb, hdr);
3890 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3892 EXPORT_SYMBOL(cfg80211_testmode_event);
3895 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3897 struct cfg80211_registered_device *rdev;
3898 struct net_device *dev;
3899 struct cfg80211_connect_params connect;
3900 struct wiphy *wiphy;
3901 struct cfg80211_cached_keys *connkeys = NULL;
3904 memset(&connect, 0, sizeof(connect));
3906 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3909 if (!info->attrs[NL80211_ATTR_SSID] ||
3910 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3913 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3915 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3916 if (!nl80211_valid_auth_type(connect.auth_type))
3919 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3921 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3923 err = nl80211_crypto_settings(info, &connect.crypto,
3924 NL80211_MAX_NR_CIPHER_SUITES);
3929 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
3933 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3938 if (!netif_running(dev)) {
3943 wiphy = &rdev->wiphy;
3945 if (info->attrs[NL80211_ATTR_MAC])
3946 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3947 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3948 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3950 if (info->attrs[NL80211_ATTR_IE]) {
3951 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3952 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3955 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3957 ieee80211_get_channel(wiphy,
3958 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3959 if (!connect.channel ||
3960 connect.channel->flags & IEEE80211_CHAN_DISABLED) {
3966 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3967 connkeys = nl80211_parse_connkeys(rdev,
3968 info->attrs[NL80211_ATTR_KEYS]);
3969 if (IS_ERR(connkeys)) {
3970 err = PTR_ERR(connkeys);
3976 err = cfg80211_connect(rdev, dev, &connect, connkeys);
3979 cfg80211_unlock_rdev(rdev);
3988 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
3990 struct cfg80211_registered_device *rdev;
3991 struct net_device *dev;
3995 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3996 reason = WLAN_REASON_DEAUTH_LEAVING;
3998 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4005 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4009 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4014 if (!netif_running(dev)) {
4019 err = cfg80211_disconnect(rdev, dev, reason, true);
4022 cfg80211_unlock_rdev(rdev);
4029 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4031 struct cfg80211_registered_device *rdev;
4036 if (!info->attrs[NL80211_ATTR_PID])
4039 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4043 rdev = cfg80211_get_dev_from_info(info);
4045 err = PTR_ERR(rdev);
4049 net = get_net_ns_by_pid(pid);
4057 /* check if anything to do */
4058 if (net_eq(wiphy_net(&rdev->wiphy), net))
4061 err = cfg80211_switch_netns(rdev, net);
4065 cfg80211_unlock_rdev(rdev);
4070 static struct genl_ops nl80211_ops[] = {
4072 .cmd = NL80211_CMD_GET_WIPHY,
4073 .doit = nl80211_get_wiphy,
4074 .dumpit = nl80211_dump_wiphy,
4075 .policy = nl80211_policy,
4076 /* can be retrieved by unprivileged users */
4079 .cmd = NL80211_CMD_SET_WIPHY,
4080 .doit = nl80211_set_wiphy,
4081 .policy = nl80211_policy,
4082 .flags = GENL_ADMIN_PERM,
4085 .cmd = NL80211_CMD_GET_INTERFACE,
4086 .doit = nl80211_get_interface,
4087 .dumpit = nl80211_dump_interface,
4088 .policy = nl80211_policy,
4089 /* can be retrieved by unprivileged users */
4092 .cmd = NL80211_CMD_SET_INTERFACE,
4093 .doit = nl80211_set_interface,
4094 .policy = nl80211_policy,
4095 .flags = GENL_ADMIN_PERM,
4098 .cmd = NL80211_CMD_NEW_INTERFACE,
4099 .doit = nl80211_new_interface,
4100 .policy = nl80211_policy,
4101 .flags = GENL_ADMIN_PERM,
4104 .cmd = NL80211_CMD_DEL_INTERFACE,
4105 .doit = nl80211_del_interface,
4106 .policy = nl80211_policy,
4107 .flags = GENL_ADMIN_PERM,
4110 .cmd = NL80211_CMD_GET_KEY,
4111 .doit = nl80211_get_key,
4112 .policy = nl80211_policy,
4113 .flags = GENL_ADMIN_PERM,
4116 .cmd = NL80211_CMD_SET_KEY,
4117 .doit = nl80211_set_key,
4118 .policy = nl80211_policy,
4119 .flags = GENL_ADMIN_PERM,
4122 .cmd = NL80211_CMD_NEW_KEY,
4123 .doit = nl80211_new_key,
4124 .policy = nl80211_policy,
4125 .flags = GENL_ADMIN_PERM,
4128 .cmd = NL80211_CMD_DEL_KEY,
4129 .doit = nl80211_del_key,
4130 .policy = nl80211_policy,
4131 .flags = GENL_ADMIN_PERM,
4134 .cmd = NL80211_CMD_SET_BEACON,
4135 .policy = nl80211_policy,
4136 .flags = GENL_ADMIN_PERM,
4137 .doit = nl80211_addset_beacon,
4140 .cmd = NL80211_CMD_NEW_BEACON,
4141 .policy = nl80211_policy,
4142 .flags = GENL_ADMIN_PERM,
4143 .doit = nl80211_addset_beacon,
4146 .cmd = NL80211_CMD_DEL_BEACON,
4147 .policy = nl80211_policy,
4148 .flags = GENL_ADMIN_PERM,
4149 .doit = nl80211_del_beacon,
4152 .cmd = NL80211_CMD_GET_STATION,
4153 .doit = nl80211_get_station,
4154 .dumpit = nl80211_dump_station,
4155 .policy = nl80211_policy,
4158 .cmd = NL80211_CMD_SET_STATION,
4159 .doit = nl80211_set_station,
4160 .policy = nl80211_policy,
4161 .flags = GENL_ADMIN_PERM,
4164 .cmd = NL80211_CMD_NEW_STATION,
4165 .doit = nl80211_new_station,
4166 .policy = nl80211_policy,
4167 .flags = GENL_ADMIN_PERM,
4170 .cmd = NL80211_CMD_DEL_STATION,
4171 .doit = nl80211_del_station,
4172 .policy = nl80211_policy,
4173 .flags = GENL_ADMIN_PERM,
4176 .cmd = NL80211_CMD_GET_MPATH,
4177 .doit = nl80211_get_mpath,
4178 .dumpit = nl80211_dump_mpath,
4179 .policy = nl80211_policy,
4180 .flags = GENL_ADMIN_PERM,
4183 .cmd = NL80211_CMD_SET_MPATH,
4184 .doit = nl80211_set_mpath,
4185 .policy = nl80211_policy,
4186 .flags = GENL_ADMIN_PERM,
4189 .cmd = NL80211_CMD_NEW_MPATH,
4190 .doit = nl80211_new_mpath,
4191 .policy = nl80211_policy,
4192 .flags = GENL_ADMIN_PERM,
4195 .cmd = NL80211_CMD_DEL_MPATH,
4196 .doit = nl80211_del_mpath,
4197 .policy = nl80211_policy,
4198 .flags = GENL_ADMIN_PERM,
4201 .cmd = NL80211_CMD_SET_BSS,
4202 .doit = nl80211_set_bss,
4203 .policy = nl80211_policy,
4204 .flags = GENL_ADMIN_PERM,
4207 .cmd = NL80211_CMD_GET_REG,
4208 .doit = nl80211_get_reg,
4209 .policy = nl80211_policy,
4210 /* can be retrieved by unprivileged users */
4213 .cmd = NL80211_CMD_SET_REG,
4214 .doit = nl80211_set_reg,
4215 .policy = nl80211_policy,
4216 .flags = GENL_ADMIN_PERM,
4219 .cmd = NL80211_CMD_REQ_SET_REG,
4220 .doit = nl80211_req_set_reg,
4221 .policy = nl80211_policy,
4222 .flags = GENL_ADMIN_PERM,
4225 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4226 .doit = nl80211_get_mesh_params,
4227 .policy = nl80211_policy,
4228 /* can be retrieved by unprivileged users */
4231 .cmd = NL80211_CMD_SET_MESH_PARAMS,
4232 .doit = nl80211_set_mesh_params,
4233 .policy = nl80211_policy,
4234 .flags = GENL_ADMIN_PERM,
4237 .cmd = NL80211_CMD_TRIGGER_SCAN,
4238 .doit = nl80211_trigger_scan,
4239 .policy = nl80211_policy,
4240 .flags = GENL_ADMIN_PERM,
4243 .cmd = NL80211_CMD_GET_SCAN,
4244 .policy = nl80211_policy,
4245 .dumpit = nl80211_dump_scan,
4248 .cmd = NL80211_CMD_AUTHENTICATE,
4249 .doit = nl80211_authenticate,
4250 .policy = nl80211_policy,
4251 .flags = GENL_ADMIN_PERM,
4254 .cmd = NL80211_CMD_ASSOCIATE,
4255 .doit = nl80211_associate,
4256 .policy = nl80211_policy,
4257 .flags = GENL_ADMIN_PERM,
4260 .cmd = NL80211_CMD_DEAUTHENTICATE,
4261 .doit = nl80211_deauthenticate,
4262 .policy = nl80211_policy,
4263 .flags = GENL_ADMIN_PERM,
4266 .cmd = NL80211_CMD_DISASSOCIATE,
4267 .doit = nl80211_disassociate,
4268 .policy = nl80211_policy,
4269 .flags = GENL_ADMIN_PERM,
4272 .cmd = NL80211_CMD_JOIN_IBSS,
4273 .doit = nl80211_join_ibss,
4274 .policy = nl80211_policy,
4275 .flags = GENL_ADMIN_PERM,
4278 .cmd = NL80211_CMD_LEAVE_IBSS,
4279 .doit = nl80211_leave_ibss,
4280 .policy = nl80211_policy,
4281 .flags = GENL_ADMIN_PERM,
4283 #ifdef CONFIG_NL80211_TESTMODE
4285 .cmd = NL80211_CMD_TESTMODE,
4286 .doit = nl80211_testmode_do,
4287 .policy = nl80211_policy,
4288 .flags = GENL_ADMIN_PERM,
4292 .cmd = NL80211_CMD_CONNECT,
4293 .doit = nl80211_connect,
4294 .policy = nl80211_policy,
4295 .flags = GENL_ADMIN_PERM,
4298 .cmd = NL80211_CMD_DISCONNECT,
4299 .doit = nl80211_disconnect,
4300 .policy = nl80211_policy,
4301 .flags = GENL_ADMIN_PERM,
4304 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4305 .doit = nl80211_wiphy_netns,
4306 .policy = nl80211_policy,
4307 .flags = GENL_ADMIN_PERM,
4310 static struct genl_multicast_group nl80211_mlme_mcgrp = {
4314 /* multicast groups */
4315 static struct genl_multicast_group nl80211_config_mcgrp = {
4318 static struct genl_multicast_group nl80211_scan_mcgrp = {
4321 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4322 .name = "regulatory",
4325 /* notification functions */
4327 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4329 struct sk_buff *msg;
4331 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4335 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
4340 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4341 nl80211_config_mcgrp.id, GFP_KERNEL);
4344 static int nl80211_add_scan_req(struct sk_buff *msg,
4345 struct cfg80211_registered_device *rdev)
4347 struct cfg80211_scan_request *req = rdev->scan_req;
4348 struct nlattr *nest;
4351 ASSERT_RDEV_LOCK(rdev);
4356 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
4358 goto nla_put_failure;
4359 for (i = 0; i < req->n_ssids; i++)
4360 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
4361 nla_nest_end(msg, nest);
4363 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
4365 goto nla_put_failure;
4366 for (i = 0; i < req->n_channels; i++)
4367 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
4368 nla_nest_end(msg, nest);
4371 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
4378 static int nl80211_send_scan_msg(struct sk_buff *msg,
4379 struct cfg80211_registered_device *rdev,
4380 struct net_device *netdev,
4381 u32 pid, u32 seq, int flags,
4386 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
4390 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4391 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4393 /* ignore errors and send incomplete event anyway */
4394 nl80211_add_scan_req(msg, rdev);
4396 return genlmsg_end(msg, hdr);
4399 genlmsg_cancel(msg, hdr);
4403 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
4404 struct net_device *netdev)
4406 struct sk_buff *msg;
4408 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
4412 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4413 NL80211_CMD_TRIGGER_SCAN) < 0) {
4418 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4419 nl80211_scan_mcgrp.id, GFP_KERNEL);
4422 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
4423 struct net_device *netdev)
4425 struct sk_buff *msg;
4427 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4431 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4432 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
4437 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4438 nl80211_scan_mcgrp.id, GFP_KERNEL);
4441 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
4442 struct net_device *netdev)
4444 struct sk_buff *msg;
4446 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4450 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4451 NL80211_CMD_SCAN_ABORTED) < 0) {
4456 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4457 nl80211_scan_mcgrp.id, GFP_KERNEL);
4461 * This can happen on global regulatory changes or device specific settings
4462 * based on custom world regulatory domains.
4464 void nl80211_send_reg_change_event(struct regulatory_request *request)
4466 struct sk_buff *msg;
4469 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4473 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
4479 /* Userspace can always count this one always being set */
4480 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
4482 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
4483 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4484 NL80211_REGDOM_TYPE_WORLD);
4485 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
4486 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4487 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
4488 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
4490 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4491 NL80211_REGDOM_TYPE_INTERSECTION);
4493 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4494 NL80211_REGDOM_TYPE_COUNTRY);
4495 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
4498 if (wiphy_idx_valid(request->wiphy_idx))
4499 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
4501 if (genlmsg_end(msg, hdr) < 0) {
4507 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
4514 genlmsg_cancel(msg, hdr);
4518 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
4519 struct net_device *netdev,
4520 const u8 *buf, size_t len,
4521 enum nl80211_commands cmd, gfp_t gfp)
4523 struct sk_buff *msg;
4526 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4530 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
4536 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4537 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4538 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
4540 if (genlmsg_end(msg, hdr) < 0) {
4545 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4546 nl80211_mlme_mcgrp.id, gfp);
4550 genlmsg_cancel(msg, hdr);
4554 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
4555 struct net_device *netdev, const u8 *buf,
4556 size_t len, gfp_t gfp)
4558 nl80211_send_mlme_event(rdev, netdev, buf, len,
4559 NL80211_CMD_AUTHENTICATE, gfp);
4562 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
4563 struct net_device *netdev, const u8 *buf,
4564 size_t len, gfp_t gfp)
4566 nl80211_send_mlme_event(rdev, netdev, buf, len,
4567 NL80211_CMD_ASSOCIATE, gfp);
4570 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
4571 struct net_device *netdev, const u8 *buf,
4572 size_t len, gfp_t gfp)
4574 nl80211_send_mlme_event(rdev, netdev, buf, len,
4575 NL80211_CMD_DEAUTHENTICATE, gfp);
4578 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
4579 struct net_device *netdev, const u8 *buf,
4580 size_t len, gfp_t gfp)
4582 nl80211_send_mlme_event(rdev, netdev, buf, len,
4583 NL80211_CMD_DISASSOCIATE, gfp);
4586 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
4587 struct net_device *netdev, int cmd,
4588 const u8 *addr, gfp_t gfp)
4590 struct sk_buff *msg;
4593 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4597 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
4603 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4604 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4605 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
4606 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4608 if (genlmsg_end(msg, hdr) < 0) {
4613 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4614 nl80211_mlme_mcgrp.id, gfp);
4618 genlmsg_cancel(msg, hdr);
4622 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
4623 struct net_device *netdev, const u8 *addr,
4626 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
4630 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
4631 struct net_device *netdev, const u8 *addr,
4634 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
4638 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
4639 struct net_device *netdev, const u8 *bssid,
4640 const u8 *req_ie, size_t req_ie_len,
4641 const u8 *resp_ie, size_t resp_ie_len,
4642 u16 status, gfp_t gfp)
4644 struct sk_buff *msg;
4647 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
4651 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
4657 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4658 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4660 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
4661 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
4663 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
4665 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
4667 if (genlmsg_end(msg, hdr) < 0) {
4672 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4673 nl80211_mlme_mcgrp.id, gfp);
4677 genlmsg_cancel(msg, hdr);
4682 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
4683 struct net_device *netdev, const u8 *bssid,
4684 const u8 *req_ie, size_t req_ie_len,
4685 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
4687 struct sk_buff *msg;
4690 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
4694 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
4700 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4701 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4702 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
4704 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
4706 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
4708 if (genlmsg_end(msg, hdr) < 0) {
4713 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4714 nl80211_mlme_mcgrp.id, gfp);
4718 genlmsg_cancel(msg, hdr);
4723 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
4724 struct net_device *netdev, u16 reason,
4725 const u8 *ie, size_t ie_len, bool from_ap)
4727 struct sk_buff *msg;
4730 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
4734 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
4740 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4741 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4742 if (from_ap && reason)
4743 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
4745 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
4747 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
4749 if (genlmsg_end(msg, hdr) < 0) {
4754 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4755 nl80211_mlme_mcgrp.id, GFP_KERNEL);
4759 genlmsg_cancel(msg, hdr);
4764 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
4765 struct net_device *netdev, const u8 *bssid,
4768 struct sk_buff *msg;
4771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4775 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
4781 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4782 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4783 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
4785 if (genlmsg_end(msg, hdr) < 0) {
4790 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4791 nl80211_mlme_mcgrp.id, gfp);
4795 genlmsg_cancel(msg, hdr);
4799 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
4800 struct net_device *netdev, const u8 *addr,
4801 enum nl80211_key_type key_type, int key_id,
4802 const u8 *tsc, gfp_t gfp)
4804 struct sk_buff *msg;
4807 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4811 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
4817 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4818 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4820 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4821 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
4822 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
4824 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
4826 if (genlmsg_end(msg, hdr) < 0) {
4831 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4832 nl80211_mlme_mcgrp.id, gfp);
4836 genlmsg_cancel(msg, hdr);
4840 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
4841 struct ieee80211_channel *channel_before,
4842 struct ieee80211_channel *channel_after)
4844 struct sk_buff *msg;
4846 struct nlattr *nl_freq;
4848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
4852 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
4859 * Since we are applying the beacon hint to a wiphy we know its
4860 * wiphy_idx is valid
4862 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
4865 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
4867 goto nla_put_failure;
4868 if (nl80211_msg_put_channel(msg, channel_before))
4869 goto nla_put_failure;
4870 nla_nest_end(msg, nl_freq);
4873 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
4875 goto nla_put_failure;
4876 if (nl80211_msg_put_channel(msg, channel_after))
4877 goto nla_put_failure;
4878 nla_nest_end(msg, nl_freq);
4880 if (genlmsg_end(msg, hdr) < 0) {
4886 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
4893 genlmsg_cancel(msg, hdr);
4897 /* initialisation/exit functions */
4899 int nl80211_init(void)
4903 err = genl_register_family_with_ops(&nl80211_fam,
4904 nl80211_ops, ARRAY_SIZE(nl80211_ops));
4908 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
4912 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
4916 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
4920 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
4924 #ifdef CONFIG_NL80211_TESTMODE
4925 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
4932 genl_unregister_family(&nl80211_fam);
4936 void nl80211_exit(void)
4938 genl_unregister_family(&nl80211_fam);