2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/list.h>
11 #include <linux/if_ether.h>
12 #include <linux/ieee80211.h>
13 #include <linux/nl80211.h>
14 #include <linux/rtnetlink.h>
15 #include <linux/netlink.h>
16 #include <linux/etherdevice.h>
17 #include <net/genetlink.h>
18 #include <net/cfg80211.h>
23 /* the netlink family */
24 static struct genl_family nl80211_fam = {
25 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
26 .name = "nl80211", /* have users key off the name instead */
27 .hdrsize = 0, /* no private header */
28 .version = 1, /* no particular meaning now */
29 .maxattr = NL80211_ATTR_MAX,
32 /* internal helper: get rdev and dev */
33 static int get_rdev_dev_by_info_ifindex(struct nlattr **attrs,
34 struct cfg80211_registered_device **rdev,
35 struct net_device **dev)
39 if (!attrs[NL80211_ATTR_IFINDEX])
42 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
43 *dev = dev_get_by_index(&init_net, ifindex);
47 *rdev = cfg80211_get_dev_from_ifindex(ifindex);
50 return PTR_ERR(*rdev);
56 /* policy for the attributes */
57 static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
58 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
59 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
61 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
62 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
63 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
64 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
65 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
66 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
67 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
69 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
70 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
71 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
73 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
74 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
76 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
77 .len = WLAN_MAX_KEY_LEN },
78 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
79 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
80 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
83 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
84 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
85 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
86 .len = IEEE80211_MAX_DATA_LEN },
87 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
88 .len = IEEE80211_MAX_DATA_LEN },
89 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
90 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
91 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
92 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
93 .len = NL80211_MAX_SUPP_RATES },
94 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
95 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
96 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
97 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
98 .len = IEEE80211_MAX_MESH_ID_LEN },
99 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
101 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
102 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
104 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
105 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
106 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
107 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
110 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
112 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
113 .len = NL80211_HT_CAPABILITY_LEN },
115 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
116 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
117 .len = IEEE80211_MAX_DATA_LEN },
118 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
119 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
121 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
122 .len = IEEE80211_MAX_SSID_LEN },
123 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
124 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
125 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
126 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
127 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
128 [NL80211_ATTR_STA_FLAGS2] = {
129 .len = sizeof(struct nl80211_sta_flag_update),
131 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
132 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
133 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
134 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
138 static bool is_valid_ie_attr(const struct nlattr *attr)
146 pos = nla_data(attr);
167 /* message building helper */
168 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
171 /* since there is no private header just add the generic one */
172 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
175 static int nl80211_msg_put_channel(struct sk_buff *msg,
176 struct ieee80211_channel *chan)
178 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
181 if (chan->flags & IEEE80211_CHAN_DISABLED)
182 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
183 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
184 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
185 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
186 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
187 if (chan->flags & IEEE80211_CHAN_RADAR)
188 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
190 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
191 DBM_TO_MBM(chan->max_power));
199 /* netlink command implementations */
201 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
202 struct cfg80211_registered_device *dev)
205 struct nlattr *nl_bands, *nl_band;
206 struct nlattr *nl_freqs, *nl_freq;
207 struct nlattr *nl_rates, *nl_rate;
208 struct nlattr *nl_modes;
209 struct nlattr *nl_cmds;
210 enum ieee80211_band band;
211 struct ieee80211_channel *chan;
212 struct ieee80211_rate *rate;
214 u16 ifmodes = dev->wiphy.interface_modes;
216 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
220 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
221 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
223 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
224 dev->wiphy.retry_short);
225 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
226 dev->wiphy.retry_long);
227 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
228 dev->wiphy.frag_threshold);
229 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
230 dev->wiphy.rts_threshold);
232 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
233 dev->wiphy.max_scan_ssids);
234 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
235 dev->wiphy.max_scan_ie_len);
237 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
238 sizeof(u32) * dev->wiphy.n_cipher_suites,
239 dev->wiphy.cipher_suites);
241 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
243 goto nla_put_failure;
248 NLA_PUT_FLAG(msg, i);
253 nla_nest_end(msg, nl_modes);
255 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
257 goto nla_put_failure;
259 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
260 if (!dev->wiphy.bands[band])
263 nl_band = nla_nest_start(msg, band);
265 goto nla_put_failure;
268 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
269 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
270 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
271 &dev->wiphy.bands[band]->ht_cap.mcs);
272 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
273 dev->wiphy.bands[band]->ht_cap.cap);
274 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
275 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
276 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
277 dev->wiphy.bands[band]->ht_cap.ampdu_density);
280 /* add frequencies */
281 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
283 goto nla_put_failure;
285 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
286 nl_freq = nla_nest_start(msg, i);
288 goto nla_put_failure;
290 chan = &dev->wiphy.bands[band]->channels[i];
292 if (nl80211_msg_put_channel(msg, chan))
293 goto nla_put_failure;
295 nla_nest_end(msg, nl_freq);
298 nla_nest_end(msg, nl_freqs);
301 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
303 goto nla_put_failure;
305 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
306 nl_rate = nla_nest_start(msg, i);
308 goto nla_put_failure;
310 rate = &dev->wiphy.bands[band]->bitrates[i];
311 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
313 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
315 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
317 nla_nest_end(msg, nl_rate);
320 nla_nest_end(msg, nl_rates);
322 nla_nest_end(msg, nl_band);
324 nla_nest_end(msg, nl_bands);
326 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
328 goto nla_put_failure;
333 if (dev->ops->op) { \
335 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
339 CMD(add_virtual_intf, NEW_INTERFACE);
340 CMD(change_virtual_intf, SET_INTERFACE);
341 CMD(add_key, NEW_KEY);
342 CMD(add_beacon, NEW_BEACON);
343 CMD(add_station, NEW_STATION);
344 CMD(add_mpath, NEW_MPATH);
345 CMD(set_mesh_params, SET_MESH_PARAMS);
346 CMD(change_bss, SET_BSS);
347 CMD(auth, AUTHENTICATE);
348 CMD(assoc, ASSOCIATE);
349 CMD(deauth, DEAUTHENTICATE);
350 CMD(disassoc, DISASSOCIATE);
351 CMD(join_ibss, JOIN_IBSS);
355 if (dev->ops->connect || dev->ops->auth) {
357 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
360 if (dev->ops->disconnect || dev->ops->deauth) {
362 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
365 nla_nest_end(msg, nl_cmds);
367 return genlmsg_end(msg, hdr);
370 genlmsg_cancel(msg, hdr);
374 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
377 int start = cb->args[0];
378 struct cfg80211_registered_device *dev;
380 mutex_lock(&cfg80211_mutex);
381 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
384 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
385 cb->nlh->nlmsg_seq, NLM_F_MULTI,
391 mutex_unlock(&cfg80211_mutex);
398 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
401 struct cfg80211_registered_device *dev;
403 dev = cfg80211_get_dev_from_info(info);
407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
411 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
414 cfg80211_unlock_rdev(dev);
416 return genlmsg_reply(msg, info);
421 cfg80211_unlock_rdev(dev);
425 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
426 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
427 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
428 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
429 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
430 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
433 static int parse_txq_params(struct nlattr *tb[],
434 struct ieee80211_txq_params *txq_params)
436 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
437 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
438 !tb[NL80211_TXQ_ATTR_AIFS])
441 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
442 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
443 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
444 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
445 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
450 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
452 struct cfg80211_registered_device *rdev;
453 int result = 0, rem_txq_params = 0;
454 struct nlattr *nl_txq_params;
456 u8 retry_short = 0, retry_long = 0;
457 u32 frag_threshold = 0, rts_threshold = 0;
461 mutex_lock(&cfg80211_mutex);
463 rdev = __cfg80211_rdev_from_info(info);
465 mutex_unlock(&cfg80211_mutex);
466 result = PTR_ERR(rdev);
470 mutex_lock(&rdev->mtx);
472 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
473 result = cfg80211_dev_rename(
474 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
476 mutex_unlock(&cfg80211_mutex);
481 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
482 struct ieee80211_txq_params txq_params;
483 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
485 if (!rdev->ops->set_txq_params) {
486 result = -EOPNOTSUPP;
490 nla_for_each_nested(nl_txq_params,
491 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
493 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
494 nla_data(nl_txq_params),
495 nla_len(nl_txq_params),
497 result = parse_txq_params(tb, &txq_params);
501 result = rdev->ops->set_txq_params(&rdev->wiphy,
508 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
509 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
510 struct ieee80211_channel *chan;
511 struct ieee80211_sta_ht_cap *ht_cap;
514 if (!rdev->ops->set_channel) {
515 result = -EOPNOTSUPP;
521 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
522 channel_type = nla_get_u32(info->attrs[
523 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
524 if (channel_type != NL80211_CHAN_NO_HT &&
525 channel_type != NL80211_CHAN_HT20 &&
526 channel_type != NL80211_CHAN_HT40PLUS &&
527 channel_type != NL80211_CHAN_HT40MINUS)
531 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
532 chan = ieee80211_get_channel(&rdev->wiphy, freq);
534 /* Primary channel not allowed */
535 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
538 if (channel_type == NL80211_CHAN_HT40MINUS &&
539 (chan->flags & IEEE80211_CHAN_NO_HT40MINUS))
541 else if (channel_type == NL80211_CHAN_HT40PLUS &&
542 (chan->flags & IEEE80211_CHAN_NO_HT40PLUS))
546 * At this point we know if that if HT40 was requested
547 * we are allowed to use it and the extension channel
551 ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
553 /* no HT capabilities or intolerant */
554 if (channel_type != NL80211_CHAN_NO_HT) {
555 if (!ht_cap->ht_supported)
557 if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
558 (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
562 result = rdev->ops->set_channel(&rdev->wiphy, chan,
570 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
571 retry_short = nla_get_u8(
572 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
573 if (retry_short == 0) {
577 changed |= WIPHY_PARAM_RETRY_SHORT;
580 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
581 retry_long = nla_get_u8(
582 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
583 if (retry_long == 0) {
587 changed |= WIPHY_PARAM_RETRY_LONG;
590 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
591 frag_threshold = nla_get_u32(
592 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
593 if (frag_threshold < 256) {
597 if (frag_threshold != (u32) -1) {
599 * Fragments (apart from the last one) are required to
600 * have even length. Make the fragmentation code
601 * simpler by stripping LSB should someone try to use
602 * odd threshold value.
604 frag_threshold &= ~0x1;
606 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
609 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
610 rts_threshold = nla_get_u32(
611 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
612 changed |= WIPHY_PARAM_RTS_THRESHOLD;
616 u8 old_retry_short, old_retry_long;
617 u32 old_frag_threshold, old_rts_threshold;
619 if (!rdev->ops->set_wiphy_params) {
620 result = -EOPNOTSUPP;
624 old_retry_short = rdev->wiphy.retry_short;
625 old_retry_long = rdev->wiphy.retry_long;
626 old_frag_threshold = rdev->wiphy.frag_threshold;
627 old_rts_threshold = rdev->wiphy.rts_threshold;
629 if (changed & WIPHY_PARAM_RETRY_SHORT)
630 rdev->wiphy.retry_short = retry_short;
631 if (changed & WIPHY_PARAM_RETRY_LONG)
632 rdev->wiphy.retry_long = retry_long;
633 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
634 rdev->wiphy.frag_threshold = frag_threshold;
635 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
636 rdev->wiphy.rts_threshold = rts_threshold;
638 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
640 rdev->wiphy.retry_short = old_retry_short;
641 rdev->wiphy.retry_long = old_retry_long;
642 rdev->wiphy.frag_threshold = old_frag_threshold;
643 rdev->wiphy.rts_threshold = old_rts_threshold;
648 mutex_unlock(&rdev->mtx);
655 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
656 struct cfg80211_registered_device *rdev,
657 struct net_device *dev)
661 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
665 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
666 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
667 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
668 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
669 return genlmsg_end(msg, hdr);
672 genlmsg_cancel(msg, hdr);
676 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
680 int wp_start = cb->args[0];
681 int if_start = cb->args[1];
682 struct cfg80211_registered_device *dev;
683 struct wireless_dev *wdev;
685 mutex_lock(&cfg80211_mutex);
686 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
687 if (wp_idx < wp_start) {
693 mutex_lock(&dev->devlist_mtx);
694 list_for_each_entry(wdev, &dev->netdev_list, list) {
695 if (if_idx < if_start) {
699 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
700 cb->nlh->nlmsg_seq, NLM_F_MULTI,
701 dev, wdev->netdev) < 0) {
702 mutex_unlock(&dev->devlist_mtx);
707 mutex_unlock(&dev->devlist_mtx);
712 mutex_unlock(&cfg80211_mutex);
714 cb->args[0] = wp_idx;
715 cb->args[1] = if_idx;
720 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
723 struct cfg80211_registered_device *dev;
724 struct net_device *netdev;
727 err = get_rdev_dev_by_info_ifindex(info->attrs, &dev, &netdev);
731 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
735 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
740 cfg80211_unlock_rdev(dev);
742 return genlmsg_reply(msg, info);
748 cfg80211_unlock_rdev(dev);
752 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
753 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
754 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
755 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
756 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
757 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
760 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
762 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
770 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
771 nla, mntr_flags_policy))
774 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
776 *mntrflags |= (1<<flag);
781 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
783 struct cfg80211_registered_device *rdev;
784 struct vif_params params;
786 enum nl80211_iftype otype, ntype;
787 struct net_device *dev;
788 u32 _flags, *flags = NULL;
791 memset(¶ms, 0, sizeof(params));
795 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
799 otype = ntype = dev->ieee80211_ptr->iftype;
801 if (info->attrs[NL80211_ATTR_IFTYPE]) {
802 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
805 if (ntype > NL80211_IFTYPE_MAX) {
811 if (!rdev->ops->change_virtual_intf ||
812 !(rdev->wiphy.interface_modes & (1 << ntype))) {
817 if (info->attrs[NL80211_ATTR_MESH_ID]) {
818 if (ntype != NL80211_IFTYPE_MESH_POINT) {
822 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
823 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
827 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
828 if (ntype != NL80211_IFTYPE_MONITOR) {
832 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
842 err = rdev->ops->change_virtual_intf(&rdev->wiphy, dev,
843 ntype, flags, ¶ms);
847 WARN_ON(!err && dev->ieee80211_ptr->iftype != ntype);
849 if (!err && (ntype != otype)) {
850 if (otype == NL80211_IFTYPE_ADHOC)
851 cfg80211_clear_ibss(dev, false);
856 cfg80211_unlock_rdev(rdev);
862 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
864 struct cfg80211_registered_device *rdev;
865 struct vif_params params;
867 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
870 memset(¶ms, 0, sizeof(params));
872 if (!info->attrs[NL80211_ATTR_IFNAME])
875 if (info->attrs[NL80211_ATTR_IFTYPE]) {
876 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
877 if (type > NL80211_IFTYPE_MAX)
883 rdev = cfg80211_get_dev_from_info(info);
889 if (!rdev->ops->add_virtual_intf ||
890 !(rdev->wiphy.interface_modes & (1 << type))) {
895 if (type == NL80211_IFTYPE_MESH_POINT &&
896 info->attrs[NL80211_ATTR_MESH_ID]) {
897 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
898 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
901 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
902 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
904 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
905 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
906 type, err ? NULL : &flags, ¶ms);
909 cfg80211_unlock_rdev(rdev);
915 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
917 struct cfg80211_registered_device *rdev;
919 struct net_device *dev;
923 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
926 ifindex = dev->ifindex;
929 if (!rdev->ops->del_virtual_intf) {
934 err = rdev->ops->del_virtual_intf(&rdev->wiphy, ifindex);
937 cfg80211_unlock_rdev(rdev);
943 struct get_key_cookie {
948 static void get_key_callback(void *c, struct key_params *params)
950 struct get_key_cookie *cookie = c;
953 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
954 params->key_len, params->key);
957 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
958 params->seq_len, params->seq);
961 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
969 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
971 struct cfg80211_registered_device *rdev;
973 struct net_device *dev;
976 struct get_key_cookie cookie = {
982 if (info->attrs[NL80211_ATTR_KEY_IDX])
983 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
988 if (info->attrs[NL80211_ATTR_MAC])
989 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
993 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
997 if (!rdev->ops->get_key) {
1002 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1008 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1009 NL80211_CMD_NEW_KEY);
1018 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1019 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1021 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1023 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr,
1024 &cookie, get_key_callback);
1030 goto nla_put_failure;
1032 genlmsg_end(msg, hdr);
1033 err = genlmsg_reply(msg, info);
1040 cfg80211_unlock_rdev(rdev);
1048 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1050 struct cfg80211_registered_device *rdev;
1052 struct net_device *dev;
1054 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1057 if (!info->attrs[NL80211_ATTR_KEY_IDX])
1060 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1062 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) {
1063 if (key_idx < 4 || key_idx > 5)
1065 } else if (key_idx > 3)
1068 /* currently only support setting default key */
1069 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] &&
1070 !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT])
1075 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1079 if (info->attrs[NL80211_ATTR_KEY_DEFAULT])
1080 func = rdev->ops->set_default_key;
1082 func = rdev->ops->set_default_mgmt_key;
1089 err = func(&rdev->wiphy, dev, key_idx);
1090 #ifdef CONFIG_WIRELESS_EXT
1092 if (func == rdev->ops->set_default_key)
1093 dev->ieee80211_ptr->wext.default_key = key_idx;
1095 dev->ieee80211_ptr->wext.default_mgmt_key = key_idx;
1100 cfg80211_unlock_rdev(rdev);
1109 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1111 struct cfg80211_registered_device *rdev;
1113 struct net_device *dev;
1114 struct key_params params;
1116 u8 *mac_addr = NULL;
1118 memset(¶ms, 0, sizeof(params));
1120 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
1123 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
1124 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
1125 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
1128 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
1129 params.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
1130 params.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
1133 if (info->attrs[NL80211_ATTR_KEY_IDX])
1134 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1136 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
1138 if (info->attrs[NL80211_ATTR_MAC])
1139 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1141 if (cfg80211_validate_key_settings(¶ms, key_idx, mac_addr))
1146 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1150 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++)
1151 if (params.cipher == rdev->wiphy.cipher_suites[i])
1153 if (i == rdev->wiphy.n_cipher_suites) {
1158 if (!rdev->ops->add_key) {
1163 err = rdev->ops->add_key(&rdev->wiphy, dev, key_idx, mac_addr, ¶ms);
1166 cfg80211_unlock_rdev(rdev);
1174 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1176 struct cfg80211_registered_device *rdev;
1178 struct net_device *dev;
1180 u8 *mac_addr = NULL;
1182 if (info->attrs[NL80211_ATTR_KEY_IDX])
1183 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1188 if (info->attrs[NL80211_ATTR_MAC])
1189 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1193 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1197 if (!rdev->ops->del_key) {
1202 err = rdev->ops->del_key(&rdev->wiphy, dev, key_idx, mac_addr);
1204 #ifdef CONFIG_WIRELESS_EXT
1206 if (key_idx == dev->ieee80211_ptr->wext.default_key)
1207 dev->ieee80211_ptr->wext.default_key = -1;
1208 else if (key_idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1209 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1214 cfg80211_unlock_rdev(rdev);
1223 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1225 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1226 struct beacon_parameters *info);
1227 struct cfg80211_registered_device *rdev;
1229 struct net_device *dev;
1230 struct beacon_parameters params;
1233 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1238 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1242 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1247 switch (info->genlhdr->cmd) {
1248 case NL80211_CMD_NEW_BEACON:
1249 /* these are required for NEW_BEACON */
1250 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1251 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1252 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1257 call = rdev->ops->add_beacon;
1259 case NL80211_CMD_SET_BEACON:
1260 call = rdev->ops->set_beacon;
1273 memset(¶ms, 0, sizeof(params));
1275 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1277 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1281 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1282 params.dtim_period =
1283 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1287 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1288 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1290 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1294 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1295 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1297 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1306 err = call(&rdev->wiphy, dev, ¶ms);
1309 cfg80211_unlock_rdev(rdev);
1317 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1319 struct cfg80211_registered_device *rdev;
1321 struct net_device *dev;
1325 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1329 if (!rdev->ops->del_beacon) {
1334 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1338 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
1341 cfg80211_unlock_rdev(rdev);
1349 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1350 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1351 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1352 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1353 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
1356 static int parse_station_flags(struct genl_info *info,
1357 struct station_parameters *params)
1359 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1364 * Try parsing the new attribute first so userspace
1365 * can specify both for older kernels.
1367 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1369 struct nl80211_sta_flag_update *sta_flags;
1371 sta_flags = nla_data(nla);
1372 params->sta_flags_mask = sta_flags->mask;
1373 params->sta_flags_set = sta_flags->set;
1374 if ((params->sta_flags_mask |
1375 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1380 /* if present, parse the old attribute */
1382 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
1386 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1387 nla, sta_flags_policy))
1390 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1391 params->sta_flags_mask &= ~1;
1393 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1395 params->sta_flags_set |= (1<<flag);
1400 static u16 nl80211_calculate_bitrate(struct rate_info *rate)
1402 int modulation, streams, bitrate;
1404 if (!(rate->flags & RATE_INFO_FLAGS_MCS))
1405 return rate->legacy;
1407 /* the formula below does only work for MCS values smaller than 32 */
1408 if (rate->mcs >= 32)
1411 modulation = rate->mcs & 7;
1412 streams = (rate->mcs >> 3) + 1;
1414 bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ?
1418 bitrate *= (modulation + 1);
1419 else if (modulation == 4)
1420 bitrate *= (modulation + 2);
1422 bitrate *= (modulation + 3);
1426 if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
1427 bitrate = (bitrate / 9) * 10;
1429 /* do NOT round down here */
1430 return (bitrate + 50000) / 100000;
1433 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1434 int flags, struct net_device *dev,
1435 u8 *mac_addr, struct station_info *sinfo)
1438 struct nlattr *sinfoattr, *txrate;
1441 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1445 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1446 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1448 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1450 goto nla_put_failure;
1451 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1452 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1453 sinfo->inactive_time);
1454 if (sinfo->filled & STATION_INFO_RX_BYTES)
1455 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1457 if (sinfo->filled & STATION_INFO_TX_BYTES)
1458 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1460 if (sinfo->filled & STATION_INFO_LLID)
1461 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1463 if (sinfo->filled & STATION_INFO_PLID)
1464 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1466 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1467 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1468 sinfo->plink_state);
1469 if (sinfo->filled & STATION_INFO_SIGNAL)
1470 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1472 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1473 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1475 goto nla_put_failure;
1477 /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */
1478 bitrate = nl80211_calculate_bitrate(&sinfo->txrate);
1480 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1482 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1483 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1485 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1486 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1487 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1488 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1490 nla_nest_end(msg, txrate);
1492 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1493 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1495 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1496 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1498 nla_nest_end(msg, sinfoattr);
1500 return genlmsg_end(msg, hdr);
1503 genlmsg_cancel(msg, hdr);
1507 static int nl80211_dump_station(struct sk_buff *skb,
1508 struct netlink_callback *cb)
1510 struct station_info sinfo;
1511 struct cfg80211_registered_device *dev;
1512 struct net_device *netdev;
1513 u8 mac_addr[ETH_ALEN];
1514 int ifidx = cb->args[0];
1515 int sta_idx = cb->args[1];
1519 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1520 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1525 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1528 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1535 netdev = __dev_get_by_index(&init_net, ifidx);
1541 dev = cfg80211_get_dev_from_ifindex(ifidx);
1547 if (!dev->ops->dump_station) {
1553 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1560 if (nl80211_send_station(skb,
1561 NETLINK_CB(cb->skb).pid,
1562 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1572 cb->args[1] = sta_idx;
1575 cfg80211_unlock_rdev(dev);
1582 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1584 struct cfg80211_registered_device *rdev;
1586 struct net_device *dev;
1587 struct station_info sinfo;
1588 struct sk_buff *msg;
1589 u8 *mac_addr = NULL;
1591 memset(&sinfo, 0, sizeof(sinfo));
1593 if (!info->attrs[NL80211_ATTR_MAC])
1596 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1600 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1604 if (!rdev->ops->get_station) {
1609 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
1613 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1617 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1618 dev, mac_addr, &sinfo) < 0)
1621 err = genlmsg_reply(msg, info);
1627 cfg80211_unlock_rdev(rdev);
1636 * Get vlan interface making sure it is on the right wiphy.
1638 static int get_vlan(struct nlattr *vlanattr,
1639 struct cfg80211_registered_device *rdev,
1640 struct net_device **vlan)
1645 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1648 if (!(*vlan)->ieee80211_ptr)
1650 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1656 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1658 struct cfg80211_registered_device *rdev;
1660 struct net_device *dev;
1661 struct station_parameters params;
1662 u8 *mac_addr = NULL;
1664 memset(¶ms, 0, sizeof(params));
1666 params.listen_interval = -1;
1668 if (info->attrs[NL80211_ATTR_STA_AID])
1671 if (!info->attrs[NL80211_ATTR_MAC])
1674 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1676 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1677 params.supported_rates =
1678 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1679 params.supported_rates_len =
1680 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1683 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1684 params.listen_interval =
1685 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1687 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1689 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1691 if (parse_station_flags(info, ¶ms))
1694 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1695 params.plink_action =
1696 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1700 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1704 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], rdev, ¶ms.vlan);
1708 /* validate settings */
1711 switch (dev->ieee80211_ptr->iftype) {
1712 case NL80211_IFTYPE_AP:
1713 case NL80211_IFTYPE_AP_VLAN:
1714 /* disallow mesh-specific things */
1715 if (params.plink_action)
1718 case NL80211_IFTYPE_STATION:
1719 /* disallow everything but AUTHORIZED flag */
1720 if (params.plink_action)
1724 if (params.supported_rates)
1728 if (params.listen_interval >= 0)
1730 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
1733 case NL80211_IFTYPE_MESH_POINT:
1734 /* disallow things mesh doesn't support */
1739 if (params.listen_interval >= 0)
1741 if (params.supported_rates)
1743 if (params.sta_flags_mask)
1753 if (!rdev->ops->change_station) {
1758 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
1762 dev_put(params.vlan);
1763 cfg80211_unlock_rdev(rdev);
1771 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1773 struct cfg80211_registered_device *rdev;
1775 struct net_device *dev;
1776 struct station_parameters params;
1777 u8 *mac_addr = NULL;
1779 memset(¶ms, 0, sizeof(params));
1781 if (!info->attrs[NL80211_ATTR_MAC])
1784 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1787 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1790 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1791 params.supported_rates =
1792 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1793 params.supported_rates_len =
1794 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1795 params.listen_interval =
1796 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1798 if (info->attrs[NL80211_ATTR_STA_AID]) {
1799 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
1800 if (!params.aid || params.aid > IEEE80211_MAX_AID)
1804 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1806 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1808 if (parse_station_flags(info, ¶ms))
1813 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1817 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], rdev, ¶ms.vlan);
1821 /* validate settings */
1824 switch (dev->ieee80211_ptr->iftype) {
1825 case NL80211_IFTYPE_AP:
1826 case NL80211_IFTYPE_AP_VLAN:
1827 /* all ok but must have AID */
1831 case NL80211_IFTYPE_MESH_POINT:
1832 /* disallow things mesh doesn't support */
1839 if (params.listen_interval >= 0)
1841 if (params.supported_rates)
1843 if (params.sta_flags_mask)
1853 if (!rdev->ops->add_station) {
1858 if (!netif_running(dev)) {
1863 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
1867 dev_put(params.vlan);
1868 cfg80211_unlock_rdev(rdev);
1876 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1878 struct cfg80211_registered_device *rdev;
1880 struct net_device *dev;
1881 u8 *mac_addr = NULL;
1883 if (info->attrs[NL80211_ATTR_MAC])
1884 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1888 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
1892 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1893 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
1894 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
1899 if (!rdev->ops->del_station) {
1904 err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
1907 cfg80211_unlock_rdev(rdev);
1915 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1916 int flags, struct net_device *dev,
1917 u8 *dst, u8 *next_hop,
1918 struct mpath_info *pinfo)
1921 struct nlattr *pinfoattr;
1923 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1927 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1928 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1929 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1931 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1933 goto nla_put_failure;
1934 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1935 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1937 if (pinfo->filled & MPATH_INFO_DSN)
1938 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1940 if (pinfo->filled & MPATH_INFO_METRIC)
1941 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1943 if (pinfo->filled & MPATH_INFO_EXPTIME)
1944 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1946 if (pinfo->filled & MPATH_INFO_FLAGS)
1947 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1949 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1950 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1951 pinfo->discovery_timeout);
1952 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1953 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1954 pinfo->discovery_retries);
1956 nla_nest_end(msg, pinfoattr);
1958 return genlmsg_end(msg, hdr);
1961 genlmsg_cancel(msg, hdr);
1965 static int nl80211_dump_mpath(struct sk_buff *skb,
1966 struct netlink_callback *cb)
1968 struct mpath_info pinfo;
1969 struct cfg80211_registered_device *dev;
1970 struct net_device *netdev;
1972 u8 next_hop[ETH_ALEN];
1973 int ifidx = cb->args[0];
1974 int path_idx = cb->args[1];
1978 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1979 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1984 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1987 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1994 netdev = __dev_get_by_index(&init_net, ifidx);
2000 dev = cfg80211_get_dev_from_ifindex(ifidx);
2006 if (!dev->ops->dump_mpath) {
2011 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2017 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2018 dst, next_hop, &pinfo);
2024 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2025 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2026 netdev, dst, next_hop,
2035 cb->args[1] = path_idx;
2038 cfg80211_unlock_rdev(dev);
2045 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2047 struct cfg80211_registered_device *rdev;
2049 struct net_device *dev;
2050 struct mpath_info pinfo;
2051 struct sk_buff *msg;
2053 u8 next_hop[ETH_ALEN];
2055 memset(&pinfo, 0, sizeof(pinfo));
2057 if (!info->attrs[NL80211_ATTR_MAC])
2060 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2064 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2068 if (!rdev->ops->get_mpath) {
2073 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2078 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2086 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2087 dev, dst, next_hop, &pinfo) < 0)
2090 err = genlmsg_reply(msg, info);
2096 cfg80211_unlock_rdev(rdev);
2104 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2106 struct cfg80211_registered_device *rdev;
2108 struct net_device *dev;
2110 u8 *next_hop = NULL;
2112 if (!info->attrs[NL80211_ATTR_MAC])
2115 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2118 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2119 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2123 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2127 if (!rdev->ops->change_mpath) {
2132 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2137 if (!netif_running(dev)) {
2142 err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2145 cfg80211_unlock_rdev(rdev);
2152 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2154 struct cfg80211_registered_device *rdev;
2156 struct net_device *dev;
2158 u8 *next_hop = NULL;
2160 if (!info->attrs[NL80211_ATTR_MAC])
2163 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2166 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2167 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2171 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2175 if (!rdev->ops->add_mpath) {
2180 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2185 if (!netif_running(dev)) {
2190 err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2193 cfg80211_unlock_rdev(rdev);
2201 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2203 struct cfg80211_registered_device *rdev;
2205 struct net_device *dev;
2208 if (info->attrs[NL80211_ATTR_MAC])
2209 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2213 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2217 if (!rdev->ops->del_mpath) {
2222 err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2225 cfg80211_unlock_rdev(rdev);
2233 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2235 struct cfg80211_registered_device *rdev;
2237 struct net_device *dev;
2238 struct bss_parameters params;
2240 memset(¶ms, 0, sizeof(params));
2241 /* default to not changing parameters */
2242 params.use_cts_prot = -1;
2243 params.use_short_preamble = -1;
2244 params.use_short_slot_time = -1;
2246 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2247 params.use_cts_prot =
2248 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2249 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2250 params.use_short_preamble =
2251 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2252 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2253 params.use_short_slot_time =
2254 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2255 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2256 params.basic_rates =
2257 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2258 params.basic_rates_len =
2259 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2264 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2268 if (!rdev->ops->change_bss) {
2273 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2278 err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
2281 cfg80211_unlock_rdev(rdev);
2289 static const struct nla_policy
2290 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2291 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2292 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2293 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2294 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2295 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2296 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2299 static int parse_reg_rule(struct nlattr *tb[],
2300 struct ieee80211_reg_rule *reg_rule)
2302 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2303 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2305 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2307 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2309 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2311 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2313 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2316 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2318 freq_range->start_freq_khz =
2319 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2320 freq_range->end_freq_khz =
2321 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2322 freq_range->max_bandwidth_khz =
2323 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2325 power_rule->max_eirp =
2326 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2328 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2329 power_rule->max_antenna_gain =
2330 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2335 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2341 * You should only get this when cfg80211 hasn't yet initialized
2342 * completely when built-in to the kernel right between the time
2343 * window between nl80211_init() and regulatory_init(), if that is
2346 mutex_lock(&cfg80211_mutex);
2347 if (unlikely(!cfg80211_regdomain)) {
2348 mutex_unlock(&cfg80211_mutex);
2349 return -EINPROGRESS;
2351 mutex_unlock(&cfg80211_mutex);
2353 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2356 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2358 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
2359 /* We ignore world regdom requests with the old regdom setup */
2360 if (is_world_regdom(data))
2364 r = regulatory_hint_user(data);
2369 static int nl80211_get_mesh_params(struct sk_buff *skb,
2370 struct genl_info *info)
2372 struct cfg80211_registered_device *rdev;
2373 struct mesh_config cur_params;
2375 struct net_device *dev;
2377 struct nlattr *pinfoattr;
2378 struct sk_buff *msg;
2382 /* Look up our device */
2383 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2387 if (!rdev->ops->get_mesh_params) {
2392 /* Get the mesh params */
2393 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
2397 /* Draw up a netlink message to send back */
2398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2403 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2404 NL80211_CMD_GET_MESH_PARAMS);
2406 goto nla_put_failure;
2407 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2409 goto nla_put_failure;
2410 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2411 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2412 cur_params.dot11MeshRetryTimeout);
2413 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2414 cur_params.dot11MeshConfirmTimeout);
2415 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2416 cur_params.dot11MeshHoldingTimeout);
2417 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2418 cur_params.dot11MeshMaxPeerLinks);
2419 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2420 cur_params.dot11MeshMaxRetries);
2421 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2422 cur_params.dot11MeshTTL);
2423 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2424 cur_params.auto_open_plinks);
2425 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2426 cur_params.dot11MeshHWMPmaxPREQretries);
2427 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2428 cur_params.path_refresh_time);
2429 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2430 cur_params.min_discovery_timeout);
2431 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2432 cur_params.dot11MeshHWMPactivePathTimeout);
2433 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2434 cur_params.dot11MeshHWMPpreqMinInterval);
2435 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2436 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2437 nla_nest_end(msg, pinfoattr);
2438 genlmsg_end(msg, hdr);
2439 err = genlmsg_reply(msg, info);
2443 genlmsg_cancel(msg, hdr);
2447 cfg80211_unlock_rdev(rdev);
2455 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2457 if (table[attr_num]) {\
2458 cfg.param = nla_fn(table[attr_num]); \
2459 mask |= (1 << (attr_num - 1)); \
2463 static struct nla_policy
2464 nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
2465 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2466 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2467 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2468 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2469 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2470 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2471 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2473 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2474 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2475 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2476 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2477 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2478 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2481 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2485 struct cfg80211_registered_device *rdev;
2486 struct net_device *dev;
2487 struct mesh_config cfg;
2488 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2489 struct nlattr *parent_attr;
2491 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2494 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2495 parent_attr, nl80211_meshconf_params_policy))
2500 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2504 if (!rdev->ops->set_mesh_params) {
2509 /* This makes sure that there aren't more than 32 mesh config
2510 * parameters (otherwise our bitfield scheme would not work.) */
2511 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2513 /* Fill in the params struct */
2515 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2516 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2517 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2518 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2519 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2520 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2521 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2522 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2523 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2524 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2525 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2526 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2527 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2528 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2529 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2530 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2532 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2533 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2534 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2535 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2537 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2538 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2540 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2541 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2543 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2544 dot11MeshHWMPnetDiameterTraversalTime,
2545 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2549 err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
2553 cfg80211_unlock_rdev(rdev);
2561 #undef FILL_IN_MESH_PARAM_IF_SET
2563 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2565 struct sk_buff *msg;
2567 struct nlattr *nl_reg_rules;
2571 mutex_lock(&cfg80211_mutex);
2573 if (!cfg80211_regdomain)
2576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2582 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2583 NL80211_CMD_GET_REG);
2585 goto nla_put_failure;
2587 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2588 cfg80211_regdomain->alpha2);
2590 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2592 goto nla_put_failure;
2594 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2595 struct nlattr *nl_reg_rule;
2596 const struct ieee80211_reg_rule *reg_rule;
2597 const struct ieee80211_freq_range *freq_range;
2598 const struct ieee80211_power_rule *power_rule;
2600 reg_rule = &cfg80211_regdomain->reg_rules[i];
2601 freq_range = ®_rule->freq_range;
2602 power_rule = ®_rule->power_rule;
2604 nl_reg_rule = nla_nest_start(msg, i);
2606 goto nla_put_failure;
2608 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2610 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2611 freq_range->start_freq_khz);
2612 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2613 freq_range->end_freq_khz);
2614 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2615 freq_range->max_bandwidth_khz);
2616 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2617 power_rule->max_antenna_gain);
2618 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2619 power_rule->max_eirp);
2621 nla_nest_end(msg, nl_reg_rule);
2624 nla_nest_end(msg, nl_reg_rules);
2626 genlmsg_end(msg, hdr);
2627 err = genlmsg_reply(msg, info);
2631 genlmsg_cancel(msg, hdr);
2634 mutex_unlock(&cfg80211_mutex);
2638 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2640 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2641 struct nlattr *nl_reg_rule;
2642 char *alpha2 = NULL;
2643 int rem_reg_rules = 0, r = 0;
2644 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2645 struct ieee80211_regdomain *rd = NULL;
2647 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2650 if (!info->attrs[NL80211_ATTR_REG_RULES])
2653 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2655 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2658 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2662 mutex_lock(&cfg80211_mutex);
2664 if (!reg_is_valid_request(alpha2)) {
2669 size_of_regd = sizeof(struct ieee80211_regdomain) +
2670 (num_rules * sizeof(struct ieee80211_reg_rule));
2672 rd = kzalloc(size_of_regd, GFP_KERNEL);
2678 rd->n_reg_rules = num_rules;
2679 rd->alpha2[0] = alpha2[0];
2680 rd->alpha2[1] = alpha2[1];
2682 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2684 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2685 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2687 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2693 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2699 BUG_ON(rule_idx != num_rules);
2703 mutex_unlock(&cfg80211_mutex);
2708 mutex_unlock(&cfg80211_mutex);
2713 static int validate_scan_freqs(struct nlattr *freqs)
2715 struct nlattr *attr1, *attr2;
2716 int n_channels = 0, tmp1, tmp2;
2718 nla_for_each_nested(attr1, freqs, tmp1) {
2721 * Some hardware has a limited channel list for
2722 * scanning, and it is pretty much nonsensical
2723 * to scan for a channel twice, so disallow that
2724 * and don't require drivers to check that the
2725 * channel list they get isn't longer than what
2726 * they can scan, as long as they can scan all
2727 * the channels they registered at once.
2729 nla_for_each_nested(attr2, freqs, tmp2)
2730 if (attr1 != attr2 &&
2731 nla_get_u32(attr1) == nla_get_u32(attr2))
2738 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2740 struct cfg80211_registered_device *rdev;
2741 struct net_device *dev;
2742 struct cfg80211_scan_request *request;
2743 struct cfg80211_ssid *ssid;
2744 struct ieee80211_channel *channel;
2745 struct nlattr *attr;
2746 struct wiphy *wiphy;
2747 int err, tmp, n_ssids = 0, n_channels, i;
2748 enum ieee80211_band band;
2751 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2756 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
2760 wiphy = &rdev->wiphy;
2762 if (!rdev->ops->scan) {
2767 if (!netif_running(dev)) {
2772 if (rdev->scan_req) {
2777 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2778 n_channels = validate_scan_freqs(
2779 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
2787 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2788 if (wiphy->bands[band])
2789 n_channels += wiphy->bands[band]->n_channels;
2792 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2793 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2796 if (n_ssids > wiphy->max_scan_ssids) {
2801 if (info->attrs[NL80211_ATTR_IE])
2802 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2806 if (ie_len > wiphy->max_scan_ie_len) {
2811 request = kzalloc(sizeof(*request)
2812 + sizeof(*ssid) * n_ssids
2813 + sizeof(channel) * n_channels
2814 + ie_len, GFP_KERNEL);
2820 request->channels = (void *)((char *)request + sizeof(*request));
2821 request->n_channels = n_channels;
2823 request->ssids = (void *)(request->channels + n_channels);
2824 request->n_ssids = n_ssids;
2827 request->ie = (void *)(request->ssids + n_ssids);
2829 request->ie = (void *)(request->channels + n_channels);
2832 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2833 /* user specified, bail out if channel not found */
2834 request->n_channels = n_channels;
2836 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
2837 request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr));
2838 if (!request->channels[i]) {
2847 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2849 if (!wiphy->bands[band])
2851 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
2852 request->channels[i] = &wiphy->bands[band]->channels[j];
2859 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
2860 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
2861 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
2865 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2866 request->ssids[i].ssid_len = nla_len(attr);
2871 if (info->attrs[NL80211_ATTR_IE]) {
2872 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2873 memcpy((void *)request->ie,
2874 nla_data(info->attrs[NL80211_ATTR_IE]),
2878 request->ifidx = dev->ifindex;
2879 request->wiphy = &rdev->wiphy;
2881 rdev->scan_req = request;
2882 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2885 nl80211_send_scan_start(rdev, dev);
2889 rdev->scan_req = NULL;
2893 cfg80211_unlock_rdev(rdev);
2901 static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
2902 struct cfg80211_registered_device *rdev,
2903 struct net_device *dev,
2904 struct cfg80211_bss *res)
2909 hdr = nl80211hdr_put(msg, pid, seq, flags,
2910 NL80211_CMD_NEW_SCAN_RESULTS);
2914 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION,
2915 rdev->bss_generation);
2916 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2918 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
2920 goto nla_put_failure;
2921 if (!is_zero_ether_addr(res->bssid))
2922 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
2923 if (res->information_elements && res->len_information_elements)
2924 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
2925 res->len_information_elements,
2926 res->information_elements);
2928 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
2929 if (res->beacon_interval)
2930 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
2931 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
2932 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
2934 switch (rdev->wiphy.signal_type) {
2935 case CFG80211_SIGNAL_TYPE_MBM:
2936 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
2938 case CFG80211_SIGNAL_TYPE_UNSPEC:
2939 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
2945 nla_nest_end(msg, bss);
2947 return genlmsg_end(msg, hdr);
2950 genlmsg_cancel(msg, hdr);
2954 static int nl80211_dump_scan(struct sk_buff *skb,
2955 struct netlink_callback *cb)
2957 struct cfg80211_registered_device *dev;
2958 struct net_device *netdev;
2959 struct cfg80211_internal_bss *scan;
2960 int ifidx = cb->args[0];
2961 int start = cb->args[1], idx = 0;
2965 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
2966 nl80211_fam.attrbuf, nl80211_fam.maxattr,
2971 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
2974 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
2977 cb->args[0] = ifidx;
2980 netdev = dev_get_by_index(&init_net, ifidx);
2984 dev = cfg80211_get_dev_from_ifindex(ifidx);
2987 goto out_put_netdev;
2990 spin_lock_bh(&dev->bss_lock);
2991 cfg80211_bss_expire(dev);
2993 list_for_each_entry(scan, &dev->bss_list, list) {
2996 if (nl80211_send_bss(skb,
2997 NETLINK_CB(cb->skb).pid,
2998 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2999 dev, netdev, &scan->pub) < 0) {
3006 spin_unlock_bh(&dev->bss_lock);
3010 cfg80211_unlock_rdev(dev);
3017 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3019 return auth_type <= NL80211_AUTHTYPE_MAX;
3022 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3024 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3025 NL80211_WPA_VERSION_2));
3028 static bool nl80211_valid_akm_suite(u32 akm)
3030 return akm == WLAN_AKM_SUITE_8021X ||
3031 akm == WLAN_AKM_SUITE_PSK;
3034 static bool nl80211_valid_cipher_suite(u32 cipher)
3036 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3037 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3038 cipher == WLAN_CIPHER_SUITE_TKIP ||
3039 cipher == WLAN_CIPHER_SUITE_CCMP ||
3040 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
3044 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3046 struct cfg80211_registered_device *rdev;
3047 struct net_device *dev;
3048 struct ieee80211_channel *chan;
3049 const u8 *bssid, *ssid, *ie = NULL;
3050 int err, ssid_len, ie_len = 0;
3051 enum nl80211_auth_type auth_type;
3053 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3056 if (!info->attrs[NL80211_ATTR_MAC])
3059 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3062 if (!info->attrs[NL80211_ATTR_SSID])
3065 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3070 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3074 if (!rdev->ops->auth) {
3079 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3084 if (!netif_running(dev)) {
3089 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3090 chan = ieee80211_get_channel(&rdev->wiphy,
3091 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3092 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3097 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3098 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3100 if (info->attrs[NL80211_ATTR_IE]) {
3101 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3102 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3105 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3106 if (!nl80211_valid_auth_type(auth_type)) {
3111 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3112 ssid, ssid_len, ie, ie_len);
3115 cfg80211_unlock_rdev(rdev);
3122 static int nl80211_crypto_settings(struct genl_info *info,
3123 struct cfg80211_crypto_settings *settings,
3126 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3128 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3132 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3133 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3134 settings->n_ciphers_pairwise = len / sizeof(u32);
3136 if (len % sizeof(u32))
3139 if (settings->n_ciphers_pairwise > cipher_limit)
3142 memcpy(settings->ciphers_pairwise, data, len);
3144 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3145 if (!nl80211_valid_cipher_suite(
3146 settings->ciphers_pairwise[i]))
3150 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3151 settings->cipher_group =
3152 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3153 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3157 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3158 settings->wpa_versions =
3159 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3160 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3164 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3168 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3169 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3170 settings->n_akm_suites = len / sizeof(u32);
3172 if (len % sizeof(u32))
3175 memcpy(settings->akm_suites, data, len);
3177 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3178 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3185 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3187 struct cfg80211_registered_device *rdev;
3188 struct net_device *dev;
3189 struct cfg80211_crypto_settings crypto;
3190 struct ieee80211_channel *chan;
3191 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
3192 int err, ssid_len, ie_len = 0;
3193 bool use_mfp = false;
3195 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3198 if (!info->attrs[NL80211_ATTR_MAC] ||
3199 !info->attrs[NL80211_ATTR_SSID] ||
3200 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
3205 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3209 if (!rdev->ops->assoc) {
3214 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3219 if (!netif_running(dev)) {
3224 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3226 chan = ieee80211_get_channel(&rdev->wiphy,
3227 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3228 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3233 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3234 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3236 if (info->attrs[NL80211_ATTR_IE]) {
3237 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3238 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3241 if (info->attrs[NL80211_ATTR_USE_MFP]) {
3242 enum nl80211_mfp mfp =
3243 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
3244 if (mfp == NL80211_MFP_REQUIRED)
3246 else if (mfp != NL80211_MFP_NO) {
3252 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3253 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3255 err = nl80211_crypto_settings(info, &crypto, 1);
3257 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3258 ssid, ssid_len, ie, ie_len, use_mfp,
3262 cfg80211_unlock_rdev(rdev);
3269 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3271 struct cfg80211_registered_device *rdev;
3272 struct net_device *dev;
3273 const u8 *ie = NULL, *bssid;
3274 int err, ie_len = 0;
3277 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3280 if (!info->attrs[NL80211_ATTR_MAC])
3283 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3288 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3292 if (!rdev->ops->deauth) {
3297 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3302 if (!netif_running(dev)) {
3307 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3309 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3310 if (reason_code == 0) {
3311 /* Reason Code 0 is reserved */
3316 if (info->attrs[NL80211_ATTR_IE]) {
3317 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3318 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3321 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code);
3324 cfg80211_unlock_rdev(rdev);
3331 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3333 struct cfg80211_registered_device *rdev;
3334 struct net_device *dev;
3335 const u8 *ie = NULL, *bssid;
3336 int err, ie_len = 0;
3339 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3342 if (!info->attrs[NL80211_ATTR_MAC])
3345 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3350 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3354 if (!rdev->ops->disassoc) {
3359 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3364 if (!netif_running(dev)) {
3369 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3371 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3372 if (reason_code == 0) {
3373 /* Reason Code 0 is reserved */
3378 if (info->attrs[NL80211_ATTR_IE]) {
3379 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3380 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3383 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code);
3386 cfg80211_unlock_rdev(rdev);
3393 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3395 struct cfg80211_registered_device *rdev;
3396 struct net_device *dev;
3397 struct cfg80211_ibss_params ibss;
3398 struct wiphy *wiphy;
3401 memset(&ibss, 0, sizeof(ibss));
3403 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3406 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3407 !info->attrs[NL80211_ATTR_SSID] ||
3408 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3411 ibss.beacon_interval = 100;
3413 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3414 ibss.beacon_interval =
3415 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3416 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3422 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3426 if (!rdev->ops->join_ibss) {
3431 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3436 if (!netif_running(dev)) {
3441 wiphy = &rdev->wiphy;
3443 if (info->attrs[NL80211_ATTR_MAC])
3444 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3445 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3446 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3448 if (info->attrs[NL80211_ATTR_IE]) {
3449 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3450 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3453 ibss.channel = ieee80211_get_channel(wiphy,
3454 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3455 if (!ibss.channel ||
3456 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3457 ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
3462 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
3464 err = cfg80211_join_ibss(rdev, dev, &ibss);
3467 cfg80211_unlock_rdev(rdev);
3474 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3476 struct cfg80211_registered_device *rdev;
3477 struct net_device *dev;
3482 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3486 if (!rdev->ops->leave_ibss) {
3491 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3496 if (!netif_running(dev)) {
3501 err = cfg80211_leave_ibss(rdev, dev, false);
3504 cfg80211_unlock_rdev(rdev);
3511 #ifdef CONFIG_NL80211_TESTMODE
3512 static struct genl_multicast_group nl80211_testmode_mcgrp = {
3516 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3518 struct cfg80211_registered_device *rdev;
3521 if (!info->attrs[NL80211_ATTR_TESTDATA])
3526 rdev = cfg80211_get_dev_from_info(info);
3528 err = PTR_ERR(rdev);
3533 if (rdev->ops->testmode_cmd) {
3534 rdev->testmode_info = info;
3535 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3536 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3537 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3538 rdev->testmode_info = NULL;
3541 cfg80211_unlock_rdev(rdev);
3548 static struct sk_buff *
3549 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3550 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3552 struct sk_buff *skb;
3554 struct nlattr *data;
3556 skb = nlmsg_new(approxlen + 100, gfp);
3560 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3566 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3567 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3569 ((void **)skb->cb)[0] = rdev;
3570 ((void **)skb->cb)[1] = hdr;
3571 ((void **)skb->cb)[2] = data;
3580 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3583 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3585 if (WARN_ON(!rdev->testmode_info))
3588 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3589 rdev->testmode_info->snd_pid,
3590 rdev->testmode_info->snd_seq,
3593 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3595 int cfg80211_testmode_reply(struct sk_buff *skb)
3597 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3598 void *hdr = ((void **)skb->cb)[1];
3599 struct nlattr *data = ((void **)skb->cb)[2];
3601 if (WARN_ON(!rdev->testmode_info)) {
3606 nla_nest_end(skb, data);
3607 genlmsg_end(skb, hdr);
3608 return genlmsg_reply(skb, rdev->testmode_info);
3610 EXPORT_SYMBOL(cfg80211_testmode_reply);
3612 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3613 int approxlen, gfp_t gfp)
3615 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3617 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3619 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3621 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3623 void *hdr = ((void **)skb->cb)[1];
3624 struct nlattr *data = ((void **)skb->cb)[2];
3626 nla_nest_end(skb, data);
3627 genlmsg_end(skb, hdr);
3628 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3630 EXPORT_SYMBOL(cfg80211_testmode_event);
3633 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3635 struct cfg80211_registered_device *rdev;
3636 struct net_device *dev;
3637 struct cfg80211_connect_params connect;
3638 struct wiphy *wiphy;
3641 memset(&connect, 0, sizeof(connect));
3643 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3646 if (!info->attrs[NL80211_ATTR_SSID] ||
3647 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3650 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3652 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3653 if (!nl80211_valid_auth_type(connect.auth_type))
3656 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3658 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3660 err = nl80211_crypto_settings(info, &connect.crypto,
3661 NL80211_MAX_NR_CIPHER_SUITES);
3666 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3670 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3675 if (!netif_running(dev)) {
3680 wiphy = &rdev->wiphy;
3682 connect.bssid = NULL;
3683 connect.channel = NULL;
3684 connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
3686 if (info->attrs[NL80211_ATTR_MAC])
3687 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3688 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3689 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3691 if (info->attrs[NL80211_ATTR_IE]) {
3692 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3693 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3696 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3698 ieee80211_get_channel(wiphy,
3699 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3700 if (!connect.channel ||
3701 connect.channel->flags & IEEE80211_CHAN_DISABLED) {
3707 err = cfg80211_connect(rdev, dev, &connect);
3710 cfg80211_unlock_rdev(rdev);
3717 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
3719 struct cfg80211_registered_device *rdev;
3720 struct net_device *dev;
3724 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3725 reason = WLAN_REASON_DEAUTH_LEAVING;
3727 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3734 err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
3738 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3743 if (!netif_running(dev)) {
3748 err = cfg80211_disconnect(rdev, dev, reason, true);
3751 cfg80211_unlock_rdev(rdev);
3758 static struct genl_ops nl80211_ops[] = {
3760 .cmd = NL80211_CMD_GET_WIPHY,
3761 .doit = nl80211_get_wiphy,
3762 .dumpit = nl80211_dump_wiphy,
3763 .policy = nl80211_policy,
3764 /* can be retrieved by unprivileged users */
3767 .cmd = NL80211_CMD_SET_WIPHY,
3768 .doit = nl80211_set_wiphy,
3769 .policy = nl80211_policy,
3770 .flags = GENL_ADMIN_PERM,
3773 .cmd = NL80211_CMD_GET_INTERFACE,
3774 .doit = nl80211_get_interface,
3775 .dumpit = nl80211_dump_interface,
3776 .policy = nl80211_policy,
3777 /* can be retrieved by unprivileged users */
3780 .cmd = NL80211_CMD_SET_INTERFACE,
3781 .doit = nl80211_set_interface,
3782 .policy = nl80211_policy,
3783 .flags = GENL_ADMIN_PERM,
3786 .cmd = NL80211_CMD_NEW_INTERFACE,
3787 .doit = nl80211_new_interface,
3788 .policy = nl80211_policy,
3789 .flags = GENL_ADMIN_PERM,
3792 .cmd = NL80211_CMD_DEL_INTERFACE,
3793 .doit = nl80211_del_interface,
3794 .policy = nl80211_policy,
3795 .flags = GENL_ADMIN_PERM,
3798 .cmd = NL80211_CMD_GET_KEY,
3799 .doit = nl80211_get_key,
3800 .policy = nl80211_policy,
3801 .flags = GENL_ADMIN_PERM,
3804 .cmd = NL80211_CMD_SET_KEY,
3805 .doit = nl80211_set_key,
3806 .policy = nl80211_policy,
3807 .flags = GENL_ADMIN_PERM,
3810 .cmd = NL80211_CMD_NEW_KEY,
3811 .doit = nl80211_new_key,
3812 .policy = nl80211_policy,
3813 .flags = GENL_ADMIN_PERM,
3816 .cmd = NL80211_CMD_DEL_KEY,
3817 .doit = nl80211_del_key,
3818 .policy = nl80211_policy,
3819 .flags = GENL_ADMIN_PERM,
3822 .cmd = NL80211_CMD_SET_BEACON,
3823 .policy = nl80211_policy,
3824 .flags = GENL_ADMIN_PERM,
3825 .doit = nl80211_addset_beacon,
3828 .cmd = NL80211_CMD_NEW_BEACON,
3829 .policy = nl80211_policy,
3830 .flags = GENL_ADMIN_PERM,
3831 .doit = nl80211_addset_beacon,
3834 .cmd = NL80211_CMD_DEL_BEACON,
3835 .policy = nl80211_policy,
3836 .flags = GENL_ADMIN_PERM,
3837 .doit = nl80211_del_beacon,
3840 .cmd = NL80211_CMD_GET_STATION,
3841 .doit = nl80211_get_station,
3842 .dumpit = nl80211_dump_station,
3843 .policy = nl80211_policy,
3846 .cmd = NL80211_CMD_SET_STATION,
3847 .doit = nl80211_set_station,
3848 .policy = nl80211_policy,
3849 .flags = GENL_ADMIN_PERM,
3852 .cmd = NL80211_CMD_NEW_STATION,
3853 .doit = nl80211_new_station,
3854 .policy = nl80211_policy,
3855 .flags = GENL_ADMIN_PERM,
3858 .cmd = NL80211_CMD_DEL_STATION,
3859 .doit = nl80211_del_station,
3860 .policy = nl80211_policy,
3861 .flags = GENL_ADMIN_PERM,
3864 .cmd = NL80211_CMD_GET_MPATH,
3865 .doit = nl80211_get_mpath,
3866 .dumpit = nl80211_dump_mpath,
3867 .policy = nl80211_policy,
3868 .flags = GENL_ADMIN_PERM,
3871 .cmd = NL80211_CMD_SET_MPATH,
3872 .doit = nl80211_set_mpath,
3873 .policy = nl80211_policy,
3874 .flags = GENL_ADMIN_PERM,
3877 .cmd = NL80211_CMD_NEW_MPATH,
3878 .doit = nl80211_new_mpath,
3879 .policy = nl80211_policy,
3880 .flags = GENL_ADMIN_PERM,
3883 .cmd = NL80211_CMD_DEL_MPATH,
3884 .doit = nl80211_del_mpath,
3885 .policy = nl80211_policy,
3886 .flags = GENL_ADMIN_PERM,
3889 .cmd = NL80211_CMD_SET_BSS,
3890 .doit = nl80211_set_bss,
3891 .policy = nl80211_policy,
3892 .flags = GENL_ADMIN_PERM,
3895 .cmd = NL80211_CMD_GET_REG,
3896 .doit = nl80211_get_reg,
3897 .policy = nl80211_policy,
3898 /* can be retrieved by unprivileged users */
3901 .cmd = NL80211_CMD_SET_REG,
3902 .doit = nl80211_set_reg,
3903 .policy = nl80211_policy,
3904 .flags = GENL_ADMIN_PERM,
3907 .cmd = NL80211_CMD_REQ_SET_REG,
3908 .doit = nl80211_req_set_reg,
3909 .policy = nl80211_policy,
3910 .flags = GENL_ADMIN_PERM,
3913 .cmd = NL80211_CMD_GET_MESH_PARAMS,
3914 .doit = nl80211_get_mesh_params,
3915 .policy = nl80211_policy,
3916 /* can be retrieved by unprivileged users */
3919 .cmd = NL80211_CMD_SET_MESH_PARAMS,
3920 .doit = nl80211_set_mesh_params,
3921 .policy = nl80211_policy,
3922 .flags = GENL_ADMIN_PERM,
3925 .cmd = NL80211_CMD_TRIGGER_SCAN,
3926 .doit = nl80211_trigger_scan,
3927 .policy = nl80211_policy,
3928 .flags = GENL_ADMIN_PERM,
3931 .cmd = NL80211_CMD_GET_SCAN,
3932 .policy = nl80211_policy,
3933 .dumpit = nl80211_dump_scan,
3936 .cmd = NL80211_CMD_AUTHENTICATE,
3937 .doit = nl80211_authenticate,
3938 .policy = nl80211_policy,
3939 .flags = GENL_ADMIN_PERM,
3942 .cmd = NL80211_CMD_ASSOCIATE,
3943 .doit = nl80211_associate,
3944 .policy = nl80211_policy,
3945 .flags = GENL_ADMIN_PERM,
3948 .cmd = NL80211_CMD_DEAUTHENTICATE,
3949 .doit = nl80211_deauthenticate,
3950 .policy = nl80211_policy,
3951 .flags = GENL_ADMIN_PERM,
3954 .cmd = NL80211_CMD_DISASSOCIATE,
3955 .doit = nl80211_disassociate,
3956 .policy = nl80211_policy,
3957 .flags = GENL_ADMIN_PERM,
3960 .cmd = NL80211_CMD_JOIN_IBSS,
3961 .doit = nl80211_join_ibss,
3962 .policy = nl80211_policy,
3963 .flags = GENL_ADMIN_PERM,
3966 .cmd = NL80211_CMD_LEAVE_IBSS,
3967 .doit = nl80211_leave_ibss,
3968 .policy = nl80211_policy,
3969 .flags = GENL_ADMIN_PERM,
3971 #ifdef CONFIG_NL80211_TESTMODE
3973 .cmd = NL80211_CMD_TESTMODE,
3974 .doit = nl80211_testmode_do,
3975 .policy = nl80211_policy,
3976 .flags = GENL_ADMIN_PERM,
3980 .cmd = NL80211_CMD_CONNECT,
3981 .doit = nl80211_connect,
3982 .policy = nl80211_policy,
3983 .flags = GENL_ADMIN_PERM,
3986 .cmd = NL80211_CMD_DISCONNECT,
3987 .doit = nl80211_disconnect,
3988 .policy = nl80211_policy,
3989 .flags = GENL_ADMIN_PERM,
3992 static struct genl_multicast_group nl80211_mlme_mcgrp = {
3996 /* multicast groups */
3997 static struct genl_multicast_group nl80211_config_mcgrp = {
4000 static struct genl_multicast_group nl80211_scan_mcgrp = {
4003 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4004 .name = "regulatory",
4007 /* notification functions */
4009 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4011 struct sk_buff *msg;
4013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4017 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
4022 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
4025 static int nl80211_add_scan_req(struct sk_buff *msg,
4026 struct cfg80211_registered_device *rdev)
4028 struct cfg80211_scan_request *req = rdev->scan_req;
4029 struct nlattr *nest;
4032 ASSERT_RDEV_LOCK(rdev);
4037 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
4039 goto nla_put_failure;
4040 for (i = 0; i < req->n_ssids; i++)
4041 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
4042 nla_nest_end(msg, nest);
4044 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
4046 goto nla_put_failure;
4047 for (i = 0; i < req->n_channels; i++)
4048 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
4049 nla_nest_end(msg, nest);
4052 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
4059 static int nl80211_send_scan_msg(struct sk_buff *msg,
4060 struct cfg80211_registered_device *rdev,
4061 struct net_device *netdev,
4062 u32 pid, u32 seq, int flags,
4067 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
4071 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4072 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4074 /* ignore errors and send incomplete event anyway */
4075 nl80211_add_scan_req(msg, rdev);
4077 return genlmsg_end(msg, hdr);
4080 genlmsg_cancel(msg, hdr);
4084 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
4085 struct net_device *netdev)
4087 struct sk_buff *msg;
4089 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
4093 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4094 NL80211_CMD_TRIGGER_SCAN) < 0) {
4099 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
4102 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
4103 struct net_device *netdev)
4105 struct sk_buff *msg;
4107 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4111 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4112 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
4117 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
4120 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
4121 struct net_device *netdev)
4123 struct sk_buff *msg;
4125 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4129 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4130 NL80211_CMD_SCAN_ABORTED) < 0) {
4135 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
4139 * This can happen on global regulatory changes or device specific settings
4140 * based on custom world regulatory domains.
4142 void nl80211_send_reg_change_event(struct regulatory_request *request)
4144 struct sk_buff *msg;
4147 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4151 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
4157 /* Userspace can always count this one always being set */
4158 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
4160 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
4161 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4162 NL80211_REGDOM_TYPE_WORLD);
4163 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
4164 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4165 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
4166 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
4168 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4169 NL80211_REGDOM_TYPE_INTERSECTION);
4171 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4172 NL80211_REGDOM_TYPE_COUNTRY);
4173 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
4176 if (wiphy_idx_valid(request->wiphy_idx))
4177 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
4179 if (genlmsg_end(msg, hdr) < 0) {
4184 genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL);
4189 genlmsg_cancel(msg, hdr);
4193 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
4194 struct net_device *netdev,
4195 const u8 *buf, size_t len,
4196 enum nl80211_commands cmd, gfp_t gfp)
4198 struct sk_buff *msg;
4201 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4205 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
4211 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4212 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4213 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
4215 if (genlmsg_end(msg, hdr) < 0) {
4220 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4224 genlmsg_cancel(msg, hdr);
4228 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
4229 struct net_device *netdev, const u8 *buf,
4230 size_t len, gfp_t gfp)
4232 nl80211_send_mlme_event(rdev, netdev, buf, len,
4233 NL80211_CMD_AUTHENTICATE, gfp);
4236 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
4237 struct net_device *netdev, const u8 *buf,
4238 size_t len, gfp_t gfp)
4240 nl80211_send_mlme_event(rdev, netdev, buf, len,
4241 NL80211_CMD_ASSOCIATE, gfp);
4244 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
4245 struct net_device *netdev, const u8 *buf,
4246 size_t len, gfp_t gfp)
4248 nl80211_send_mlme_event(rdev, netdev, buf, len,
4249 NL80211_CMD_DEAUTHENTICATE, gfp);
4252 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
4253 struct net_device *netdev, const u8 *buf,
4254 size_t len, gfp_t gfp)
4256 nl80211_send_mlme_event(rdev, netdev, buf, len,
4257 NL80211_CMD_DISASSOCIATE, gfp);
4260 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
4261 struct net_device *netdev, int cmd,
4262 const u8 *addr, gfp_t gfp)
4264 struct sk_buff *msg;
4267 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4271 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
4277 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4278 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4279 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
4280 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4282 if (genlmsg_end(msg, hdr) < 0) {
4287 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4291 genlmsg_cancel(msg, hdr);
4295 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
4296 struct net_device *netdev, const u8 *addr,
4299 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
4303 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
4304 struct net_device *netdev, const u8 *addr,
4307 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
4311 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
4312 struct net_device *netdev, const u8 *bssid,
4313 const u8 *req_ie, size_t req_ie_len,
4314 const u8 *resp_ie, size_t resp_ie_len,
4315 u16 status, gfp_t gfp)
4317 struct sk_buff *msg;
4320 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
4324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
4330 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4331 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4333 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
4334 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
4336 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
4338 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
4340 if (genlmsg_end(msg, hdr) < 0) {
4345 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4349 genlmsg_cancel(msg, hdr);
4354 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
4355 struct net_device *netdev, const u8 *bssid,
4356 const u8 *req_ie, size_t req_ie_len,
4357 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
4359 struct sk_buff *msg;
4362 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
4366 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
4372 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4373 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4374 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
4376 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
4378 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
4380 if (genlmsg_end(msg, hdr) < 0) {
4385 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4389 genlmsg_cancel(msg, hdr);
4394 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
4395 struct net_device *netdev, u16 reason,
4396 const u8 *ie, size_t ie_len, bool from_ap)
4398 struct sk_buff *msg;
4401 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
4405 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
4411 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4412 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4413 if (from_ap && reason)
4414 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
4416 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
4418 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
4420 if (genlmsg_end(msg, hdr) < 0) {
4425 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
4429 genlmsg_cancel(msg, hdr);
4434 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
4435 struct net_device *netdev, const u8 *bssid,
4438 struct sk_buff *msg;
4441 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4445 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
4451 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4452 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4453 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
4455 if (genlmsg_end(msg, hdr) < 0) {
4460 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4464 genlmsg_cancel(msg, hdr);
4468 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
4469 struct net_device *netdev, const u8 *addr,
4470 enum nl80211_key_type key_type, int key_id,
4471 const u8 *tsc, gfp_t gfp)
4473 struct sk_buff *msg;
4476 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4480 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
4486 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4487 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4489 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4490 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
4491 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
4493 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
4495 if (genlmsg_end(msg, hdr) < 0) {
4500 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
4504 genlmsg_cancel(msg, hdr);
4508 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
4509 struct ieee80211_channel *channel_before,
4510 struct ieee80211_channel *channel_after)
4512 struct sk_buff *msg;
4514 struct nlattr *nl_freq;
4516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
4520 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
4527 * Since we are applying the beacon hint to a wiphy we know its
4528 * wiphy_idx is valid
4530 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
4533 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
4535 goto nla_put_failure;
4536 if (nl80211_msg_put_channel(msg, channel_before))
4537 goto nla_put_failure;
4538 nla_nest_end(msg, nl_freq);
4541 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
4543 goto nla_put_failure;
4544 if (nl80211_msg_put_channel(msg, channel_after))
4545 goto nla_put_failure;
4546 nla_nest_end(msg, nl_freq);
4548 if (genlmsg_end(msg, hdr) < 0) {
4553 genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
4558 genlmsg_cancel(msg, hdr);
4562 /* initialisation/exit functions */
4564 int nl80211_init(void)
4568 err = genl_register_family_with_ops(&nl80211_fam,
4569 nl80211_ops, ARRAY_SIZE(nl80211_ops));
4573 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
4577 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
4581 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
4585 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
4589 #ifdef CONFIG_NL80211_TESTMODE
4590 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
4597 genl_unregister_family(&nl80211_fam);
4601 void nl80211_exit(void)
4603 genl_unregister_family(&nl80211_fam);