2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006, 2007 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 drv and dev */
33 static int get_drv_dev_by_info_ifindex(struct nlattr **attrs,
34 struct cfg80211_registered_device **drv,
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 *drv = cfg80211_get_dev_from_ifindex(ifindex);
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,
60 .len = BUS_ID_SIZE-1 },
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 },
75 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
76 .len = WLAN_MAX_KEY_LEN },
77 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
78 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
79 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
82 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
83 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
84 .len = IEEE80211_MAX_DATA_LEN },
85 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
86 .len = IEEE80211_MAX_DATA_LEN },
87 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
88 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
89 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
90 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
91 .len = NL80211_MAX_SUPP_RATES },
92 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
93 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
94 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
95 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
96 .len = IEEE80211_MAX_MESH_ID_LEN },
97 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
99 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
100 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
102 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
103 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
104 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
105 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
106 .len = NL80211_MAX_SUPP_RATES },
108 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
110 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
111 .len = NL80211_HT_CAPABILITY_LEN },
113 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
114 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
115 .len = IEEE80211_MAX_DATA_LEN },
116 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
117 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
119 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
120 .len = IEEE80211_MAX_SSID_LEN },
121 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
122 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
123 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
127 static bool is_valid_ie_attr(const struct nlattr *attr)
135 pos = nla_data(attr);
156 /* message building helper */
157 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
160 /* since there is no private header just add the generic one */
161 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
164 static int nl80211_msg_put_channel(struct sk_buff *msg,
165 struct ieee80211_channel *chan)
167 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
170 if (chan->flags & IEEE80211_CHAN_DISABLED)
171 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
172 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
173 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
174 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
175 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
176 if (chan->flags & IEEE80211_CHAN_RADAR)
177 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
179 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
180 DBM_TO_MBM(chan->max_power));
188 /* netlink command implementations */
190 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
191 struct cfg80211_registered_device *dev)
194 struct nlattr *nl_bands, *nl_band;
195 struct nlattr *nl_freqs, *nl_freq;
196 struct nlattr *nl_rates, *nl_rate;
197 struct nlattr *nl_modes;
198 struct nlattr *nl_cmds;
199 enum ieee80211_band band;
200 struct ieee80211_channel *chan;
201 struct ieee80211_rate *rate;
203 u16 ifmodes = dev->wiphy.interface_modes;
205 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
209 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
210 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
212 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
213 dev->wiphy.retry_short);
214 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
215 dev->wiphy.retry_long);
216 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
217 dev->wiphy.frag_threshold);
218 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
219 dev->wiphy.rts_threshold);
221 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
222 dev->wiphy.max_scan_ssids);
223 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
224 dev->wiphy.max_scan_ie_len);
226 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
227 sizeof(u32) * dev->wiphy.n_cipher_suites,
228 dev->wiphy.cipher_suites);
230 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
232 goto nla_put_failure;
237 NLA_PUT_FLAG(msg, i);
242 nla_nest_end(msg, nl_modes);
244 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
246 goto nla_put_failure;
248 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
249 if (!dev->wiphy.bands[band])
252 nl_band = nla_nest_start(msg, band);
254 goto nla_put_failure;
257 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
258 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
259 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
260 &dev->wiphy.bands[band]->ht_cap.mcs);
261 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
262 dev->wiphy.bands[band]->ht_cap.cap);
263 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
264 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
265 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
266 dev->wiphy.bands[band]->ht_cap.ampdu_density);
269 /* add frequencies */
270 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
272 goto nla_put_failure;
274 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
275 nl_freq = nla_nest_start(msg, i);
277 goto nla_put_failure;
279 chan = &dev->wiphy.bands[band]->channels[i];
281 if (nl80211_msg_put_channel(msg, chan))
282 goto nla_put_failure;
284 nla_nest_end(msg, nl_freq);
287 nla_nest_end(msg, nl_freqs);
290 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
292 goto nla_put_failure;
294 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
295 nl_rate = nla_nest_start(msg, i);
297 goto nla_put_failure;
299 rate = &dev->wiphy.bands[band]->bitrates[i];
300 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
302 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
304 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
306 nla_nest_end(msg, nl_rate);
309 nla_nest_end(msg, nl_rates);
311 nla_nest_end(msg, nl_band);
313 nla_nest_end(msg, nl_bands);
315 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
317 goto nla_put_failure;
322 if (dev->ops->op) { \
324 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
328 CMD(add_virtual_intf, NEW_INTERFACE);
329 CMD(change_virtual_intf, SET_INTERFACE);
330 CMD(add_key, NEW_KEY);
331 CMD(add_beacon, NEW_BEACON);
332 CMD(add_station, NEW_STATION);
333 CMD(add_mpath, NEW_MPATH);
334 CMD(set_mesh_params, SET_MESH_PARAMS);
335 CMD(change_bss, SET_BSS);
336 CMD(auth, AUTHENTICATE);
337 CMD(assoc, ASSOCIATE);
338 CMD(deauth, DEAUTHENTICATE);
339 CMD(disassoc, DISASSOCIATE);
340 CMD(join_ibss, JOIN_IBSS);
343 nla_nest_end(msg, nl_cmds);
345 return genlmsg_end(msg, hdr);
348 genlmsg_cancel(msg, hdr);
352 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
355 int start = cb->args[0];
356 struct cfg80211_registered_device *dev;
358 mutex_lock(&cfg80211_mutex);
359 list_for_each_entry(dev, &cfg80211_drv_list, list) {
362 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
363 cb->nlh->nlmsg_seq, NLM_F_MULTI,
369 mutex_unlock(&cfg80211_mutex);
376 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
379 struct cfg80211_registered_device *dev;
381 dev = cfg80211_get_dev_from_info(info);
385 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
389 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
392 cfg80211_put_dev(dev);
394 return genlmsg_unicast(msg, info->snd_pid);
399 cfg80211_put_dev(dev);
403 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
404 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
405 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
406 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
407 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
408 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
411 static int parse_txq_params(struct nlattr *tb[],
412 struct ieee80211_txq_params *txq_params)
414 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
415 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
416 !tb[NL80211_TXQ_ATTR_AIFS])
419 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
420 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
421 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
422 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
423 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
428 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
430 struct cfg80211_registered_device *rdev;
431 int result = 0, rem_txq_params = 0;
432 struct nlattr *nl_txq_params;
434 u8 retry_short = 0, retry_long = 0;
435 u32 frag_threshold = 0, rts_threshold = 0;
439 mutex_lock(&cfg80211_mutex);
441 rdev = __cfg80211_drv_from_info(info);
443 result = PTR_ERR(rdev);
447 mutex_lock(&rdev->mtx);
449 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
450 result = cfg80211_dev_rename(
451 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
453 mutex_unlock(&cfg80211_mutex);
458 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
459 struct ieee80211_txq_params txq_params;
460 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
462 if (!rdev->ops->set_txq_params) {
463 result = -EOPNOTSUPP;
467 nla_for_each_nested(nl_txq_params,
468 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
470 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
471 nla_data(nl_txq_params),
472 nla_len(nl_txq_params),
474 result = parse_txq_params(tb, &txq_params);
478 result = rdev->ops->set_txq_params(&rdev->wiphy,
485 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
486 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
487 struct ieee80211_channel *chan;
488 struct ieee80211_sta_ht_cap *ht_cap;
491 if (!rdev->ops->set_channel) {
492 result = -EOPNOTSUPP;
498 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
499 channel_type = nla_get_u32(info->attrs[
500 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
501 if (channel_type != NL80211_CHAN_NO_HT &&
502 channel_type != NL80211_CHAN_HT20 &&
503 channel_type != NL80211_CHAN_HT40PLUS &&
504 channel_type != NL80211_CHAN_HT40MINUS)
508 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
509 chan = ieee80211_get_channel(&rdev->wiphy, freq);
511 /* Primary channel not allowed */
512 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
515 if (channel_type == NL80211_CHAN_HT40MINUS)
516 sec_freq = freq - 20;
517 else if (channel_type == NL80211_CHAN_HT40PLUS)
518 sec_freq = freq + 20;
522 ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
524 /* no HT capabilities */
525 if (channel_type != NL80211_CHAN_NO_HT &&
526 !ht_cap->ht_supported)
530 struct ieee80211_channel *schan;
532 /* no 40 MHz capabilities */
533 if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
534 (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
537 schan = ieee80211_get_channel(&rdev->wiphy, sec_freq);
539 /* Secondary channel not allowed */
540 if (!schan || schan->flags & IEEE80211_CHAN_DISABLED)
544 result = rdev->ops->set_channel(&rdev->wiphy, chan,
552 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
553 retry_short = nla_get_u8(
554 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
555 if (retry_short == 0) {
559 changed |= WIPHY_PARAM_RETRY_SHORT;
562 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
563 retry_long = nla_get_u8(
564 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
565 if (retry_long == 0) {
569 changed |= WIPHY_PARAM_RETRY_LONG;
572 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
573 frag_threshold = nla_get_u32(
574 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
575 if (frag_threshold < 256) {
579 if (frag_threshold != (u32) -1) {
581 * Fragments (apart from the last one) are required to
582 * have even length. Make the fragmentation code
583 * simpler by stripping LSB should someone try to use
584 * odd threshold value.
586 frag_threshold &= ~0x1;
588 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
591 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
592 rts_threshold = nla_get_u32(
593 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
594 changed |= WIPHY_PARAM_RTS_THRESHOLD;
598 u8 old_retry_short, old_retry_long;
599 u32 old_frag_threshold, old_rts_threshold;
601 if (!rdev->ops->set_wiphy_params) {
602 result = -EOPNOTSUPP;
606 old_retry_short = rdev->wiphy.retry_short;
607 old_retry_long = rdev->wiphy.retry_long;
608 old_frag_threshold = rdev->wiphy.frag_threshold;
609 old_rts_threshold = rdev->wiphy.rts_threshold;
611 if (changed & WIPHY_PARAM_RETRY_SHORT)
612 rdev->wiphy.retry_short = retry_short;
613 if (changed & WIPHY_PARAM_RETRY_LONG)
614 rdev->wiphy.retry_long = retry_long;
615 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
616 rdev->wiphy.frag_threshold = frag_threshold;
617 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
618 rdev->wiphy.rts_threshold = rts_threshold;
620 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
622 rdev->wiphy.retry_short = old_retry_short;
623 rdev->wiphy.retry_long = old_retry_long;
624 rdev->wiphy.frag_threshold = old_frag_threshold;
625 rdev->wiphy.rts_threshold = old_rts_threshold;
630 mutex_unlock(&rdev->mtx);
637 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
638 struct cfg80211_registered_device *rdev,
639 struct net_device *dev)
643 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
647 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
648 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
649 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
650 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
651 return genlmsg_end(msg, hdr);
654 genlmsg_cancel(msg, hdr);
658 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
662 int wp_start = cb->args[0];
663 int if_start = cb->args[1];
664 struct cfg80211_registered_device *dev;
665 struct wireless_dev *wdev;
667 mutex_lock(&cfg80211_mutex);
668 list_for_each_entry(dev, &cfg80211_drv_list, list) {
669 if (wp_idx < wp_start) {
675 mutex_lock(&dev->devlist_mtx);
676 list_for_each_entry(wdev, &dev->netdev_list, list) {
677 if (if_idx < if_start) {
681 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
682 cb->nlh->nlmsg_seq, NLM_F_MULTI,
683 dev, wdev->netdev) < 0) {
684 mutex_unlock(&dev->devlist_mtx);
689 mutex_unlock(&dev->devlist_mtx);
694 mutex_unlock(&cfg80211_mutex);
696 cb->args[0] = wp_idx;
697 cb->args[1] = if_idx;
702 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
705 struct cfg80211_registered_device *dev;
706 struct net_device *netdev;
709 err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev);
713 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
717 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
722 cfg80211_put_dev(dev);
724 return genlmsg_unicast(msg, info->snd_pid);
730 cfg80211_put_dev(dev);
734 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
735 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
736 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
737 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
738 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
739 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
742 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
744 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
752 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
753 nla, mntr_flags_policy))
756 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
758 *mntrflags |= (1<<flag);
763 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
765 struct cfg80211_registered_device *drv;
766 struct vif_params params;
768 enum nl80211_iftype otype, ntype;
769 struct net_device *dev;
770 u32 _flags, *flags = NULL;
773 memset(¶ms, 0, sizeof(params));
777 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
781 ifindex = dev->ifindex;
782 otype = ntype = dev->ieee80211_ptr->iftype;
785 if (info->attrs[NL80211_ATTR_IFTYPE]) {
786 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
789 if (ntype > NL80211_IFTYPE_MAX) {
795 if (!drv->ops->change_virtual_intf ||
796 !(drv->wiphy.interface_modes & (1 << ntype))) {
801 if (info->attrs[NL80211_ATTR_MESH_ID]) {
802 if (ntype != NL80211_IFTYPE_MESH_POINT) {
806 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
807 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
811 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
812 if (ntype != NL80211_IFTYPE_MONITOR) {
816 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
826 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
827 ntype, flags, ¶ms);
831 dev = __dev_get_by_index(&init_net, ifindex);
832 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != ntype));
834 if (dev && !err && (ntype != otype)) {
835 if (otype == NL80211_IFTYPE_ADHOC)
836 cfg80211_clear_ibss(dev, false);
840 cfg80211_put_dev(drv);
846 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
848 struct cfg80211_registered_device *drv;
849 struct vif_params params;
851 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
854 memset(¶ms, 0, sizeof(params));
856 if (!info->attrs[NL80211_ATTR_IFNAME])
859 if (info->attrs[NL80211_ATTR_IFTYPE]) {
860 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
861 if (type > NL80211_IFTYPE_MAX)
867 drv = cfg80211_get_dev_from_info(info);
873 if (!drv->ops->add_virtual_intf ||
874 !(drv->wiphy.interface_modes & (1 << type))) {
879 if (type == NL80211_IFTYPE_MESH_POINT &&
880 info->attrs[NL80211_ATTR_MESH_ID]) {
881 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
882 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
885 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
886 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
888 err = drv->ops->add_virtual_intf(&drv->wiphy,
889 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
890 type, err ? NULL : &flags, ¶ms);
893 cfg80211_put_dev(drv);
899 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
901 struct cfg80211_registered_device *drv;
903 struct net_device *dev;
907 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
910 ifindex = dev->ifindex;
913 if (!drv->ops->del_virtual_intf) {
918 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
921 cfg80211_put_dev(drv);
927 struct get_key_cookie {
932 static void get_key_callback(void *c, struct key_params *params)
934 struct get_key_cookie *cookie = c;
937 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
938 params->key_len, params->key);
941 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
942 params->seq_len, params->seq);
945 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
953 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
955 struct cfg80211_registered_device *drv;
957 struct net_device *dev;
960 struct get_key_cookie cookie = {
966 if (info->attrs[NL80211_ATTR_KEY_IDX])
967 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
972 if (info->attrs[NL80211_ATTR_MAC])
973 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
977 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
981 if (!drv->ops->get_key) {
986 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
992 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
993 NL80211_CMD_NEW_KEY);
1002 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1003 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1005 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1007 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
1008 &cookie, get_key_callback);
1014 goto nla_put_failure;
1016 genlmsg_end(msg, hdr);
1017 err = genlmsg_unicast(msg, info->snd_pid);
1024 cfg80211_put_dev(drv);
1032 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1034 struct cfg80211_registered_device *drv;
1036 struct net_device *dev;
1038 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1041 if (!info->attrs[NL80211_ATTR_KEY_IDX])
1044 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1046 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) {
1047 if (key_idx < 4 || key_idx > 5)
1049 } else if (key_idx > 3)
1052 /* currently only support setting default key */
1053 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] &&
1054 !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT])
1059 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1063 if (info->attrs[NL80211_ATTR_KEY_DEFAULT])
1064 func = drv->ops->set_default_key;
1066 func = drv->ops->set_default_mgmt_key;
1073 err = func(&drv->wiphy, dev, key_idx);
1076 cfg80211_put_dev(drv);
1085 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1087 struct cfg80211_registered_device *drv;
1089 struct net_device *dev;
1090 struct key_params params;
1092 u8 *mac_addr = NULL;
1094 memset(¶ms, 0, sizeof(params));
1096 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
1099 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
1100 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
1101 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
1104 if (info->attrs[NL80211_ATTR_KEY_IDX])
1105 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1107 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
1109 if (info->attrs[NL80211_ATTR_MAC])
1110 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1116 * Disallow pairwise keys with non-zero index unless it's WEP
1117 * (because current deployments use pairwise WEP keys with
1118 * non-zero indizes but 802.11i clearly specifies to use zero)
1120 if (mac_addr && key_idx &&
1121 params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
1122 params.cipher != WLAN_CIPHER_SUITE_WEP104)
1125 /* TODO: add definitions for the lengths to linux/ieee80211.h */
1126 switch (params.cipher) {
1127 case WLAN_CIPHER_SUITE_WEP40:
1128 if (params.key_len != 5)
1131 case WLAN_CIPHER_SUITE_TKIP:
1132 if (params.key_len != 32)
1135 case WLAN_CIPHER_SUITE_CCMP:
1136 if (params.key_len != 16)
1139 case WLAN_CIPHER_SUITE_WEP104:
1140 if (params.key_len != 13)
1143 case WLAN_CIPHER_SUITE_AES_CMAC:
1144 if (params.key_len != 16)
1153 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1157 for (i = 0; i < drv->wiphy.n_cipher_suites; i++)
1158 if (params.cipher == drv->wiphy.cipher_suites[i])
1160 if (i == drv->wiphy.n_cipher_suites) {
1165 if (!drv->ops->add_key) {
1170 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms);
1173 cfg80211_put_dev(drv);
1181 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1183 struct cfg80211_registered_device *drv;
1185 struct net_device *dev;
1187 u8 *mac_addr = NULL;
1189 if (info->attrs[NL80211_ATTR_KEY_IDX])
1190 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1195 if (info->attrs[NL80211_ATTR_MAC])
1196 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1200 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1204 if (!drv->ops->del_key) {
1209 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
1212 cfg80211_put_dev(drv);
1221 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1223 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1224 struct beacon_parameters *info);
1225 struct cfg80211_registered_device *drv;
1227 struct net_device *dev;
1228 struct beacon_parameters params;
1231 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1236 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1240 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1245 switch (info->genlhdr->cmd) {
1246 case NL80211_CMD_NEW_BEACON:
1247 /* these are required for NEW_BEACON */
1248 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1249 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1250 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1255 call = drv->ops->add_beacon;
1257 case NL80211_CMD_SET_BEACON:
1258 call = drv->ops->set_beacon;
1271 memset(¶ms, 0, sizeof(params));
1273 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1275 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1279 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1280 params.dtim_period =
1281 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1285 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1286 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1288 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1292 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1293 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1295 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1304 err = call(&drv->wiphy, dev, ¶ms);
1307 cfg80211_put_dev(drv);
1315 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1317 struct cfg80211_registered_device *drv;
1319 struct net_device *dev;
1323 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1327 if (!drv->ops->del_beacon) {
1332 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1336 err = drv->ops->del_beacon(&drv->wiphy, dev);
1339 cfg80211_put_dev(drv);
1347 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1348 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1349 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1350 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1353 static int parse_station_flags(struct nlattr *nla, u32 *staflags)
1355 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1363 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1364 nla, sta_flags_policy))
1367 *staflags = STATION_FLAG_CHANGED;
1369 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1371 *staflags |= (1<<flag);
1376 static u16 nl80211_calculate_bitrate(struct rate_info *rate)
1378 int modulation, streams, bitrate;
1380 if (!(rate->flags & RATE_INFO_FLAGS_MCS))
1381 return rate->legacy;
1383 /* the formula below does only work for MCS values smaller than 32 */
1384 if (rate->mcs >= 32)
1387 modulation = rate->mcs & 7;
1388 streams = (rate->mcs >> 3) + 1;
1390 bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ?
1394 bitrate *= (modulation + 1);
1395 else if (modulation == 4)
1396 bitrate *= (modulation + 2);
1398 bitrate *= (modulation + 3);
1402 if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
1403 bitrate = (bitrate / 9) * 10;
1405 /* do NOT round down here */
1406 return (bitrate + 50000) / 100000;
1409 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1410 int flags, struct net_device *dev,
1411 u8 *mac_addr, struct station_info *sinfo)
1414 struct nlattr *sinfoattr, *txrate;
1417 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1421 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1422 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1424 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1426 goto nla_put_failure;
1427 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1428 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1429 sinfo->inactive_time);
1430 if (sinfo->filled & STATION_INFO_RX_BYTES)
1431 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1433 if (sinfo->filled & STATION_INFO_TX_BYTES)
1434 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1436 if (sinfo->filled & STATION_INFO_LLID)
1437 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1439 if (sinfo->filled & STATION_INFO_PLID)
1440 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1442 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1443 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1444 sinfo->plink_state);
1445 if (sinfo->filled & STATION_INFO_SIGNAL)
1446 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1448 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1449 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1451 goto nla_put_failure;
1453 /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */
1454 bitrate = nl80211_calculate_bitrate(&sinfo->txrate);
1456 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1458 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1459 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1461 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1462 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1463 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1464 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1466 nla_nest_end(msg, txrate);
1468 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1469 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1471 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1472 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1474 nla_nest_end(msg, sinfoattr);
1476 return genlmsg_end(msg, hdr);
1479 genlmsg_cancel(msg, hdr);
1483 static int nl80211_dump_station(struct sk_buff *skb,
1484 struct netlink_callback *cb)
1486 struct station_info sinfo;
1487 struct cfg80211_registered_device *dev;
1488 struct net_device *netdev;
1489 u8 mac_addr[ETH_ALEN];
1490 int ifidx = cb->args[0];
1491 int sta_idx = cb->args[1];
1495 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1496 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1501 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1504 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1511 netdev = __dev_get_by_index(&init_net, ifidx);
1517 dev = cfg80211_get_dev_from_ifindex(ifidx);
1523 if (!dev->ops->dump_station) {
1529 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1536 if (nl80211_send_station(skb,
1537 NETLINK_CB(cb->skb).pid,
1538 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1548 cb->args[1] = sta_idx;
1551 cfg80211_put_dev(dev);
1558 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1560 struct cfg80211_registered_device *drv;
1562 struct net_device *dev;
1563 struct station_info sinfo;
1564 struct sk_buff *msg;
1565 u8 *mac_addr = NULL;
1567 memset(&sinfo, 0, sizeof(sinfo));
1569 if (!info->attrs[NL80211_ATTR_MAC])
1572 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1576 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1580 if (!drv->ops->get_station) {
1585 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
1589 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1593 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1594 dev, mac_addr, &sinfo) < 0)
1597 err = genlmsg_unicast(msg, info->snd_pid);
1603 cfg80211_put_dev(drv);
1612 * Get vlan interface making sure it is on the right wiphy.
1614 static int get_vlan(struct nlattr *vlanattr,
1615 struct cfg80211_registered_device *rdev,
1616 struct net_device **vlan)
1621 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1624 if (!(*vlan)->ieee80211_ptr)
1626 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1632 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1634 struct cfg80211_registered_device *drv;
1636 struct net_device *dev;
1637 struct station_parameters params;
1638 u8 *mac_addr = NULL;
1640 memset(¶ms, 0, sizeof(params));
1642 params.listen_interval = -1;
1644 if (info->attrs[NL80211_ATTR_STA_AID])
1647 if (!info->attrs[NL80211_ATTR_MAC])
1650 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1652 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1653 params.supported_rates =
1654 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1655 params.supported_rates_len =
1656 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1659 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1660 params.listen_interval =
1661 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1663 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1665 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1667 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1668 ¶ms.station_flags))
1671 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1672 params.plink_action =
1673 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1677 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1681 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
1685 if (!drv->ops->change_station) {
1690 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms);
1694 dev_put(params.vlan);
1695 cfg80211_put_dev(drv);
1703 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1705 struct cfg80211_registered_device *drv;
1707 struct net_device *dev;
1708 struct station_parameters params;
1709 u8 *mac_addr = NULL;
1711 memset(¶ms, 0, sizeof(params));
1713 if (!info->attrs[NL80211_ATTR_MAC])
1716 if (!info->attrs[NL80211_ATTR_STA_AID])
1719 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1722 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1725 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1726 params.supported_rates =
1727 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1728 params.supported_rates_len =
1729 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1730 params.listen_interval =
1731 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1732 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
1733 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1735 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1737 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1738 ¶ms.station_flags))
1743 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1747 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
1751 if (!drv->ops->add_station) {
1756 if (!netif_running(dev)) {
1761 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms);
1765 dev_put(params.vlan);
1766 cfg80211_put_dev(drv);
1774 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1776 struct cfg80211_registered_device *drv;
1778 struct net_device *dev;
1779 u8 *mac_addr = NULL;
1781 if (info->attrs[NL80211_ATTR_MAC])
1782 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1786 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1790 if (!drv->ops->del_station) {
1795 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
1798 cfg80211_put_dev(drv);
1806 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1807 int flags, struct net_device *dev,
1808 u8 *dst, u8 *next_hop,
1809 struct mpath_info *pinfo)
1812 struct nlattr *pinfoattr;
1814 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1818 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1819 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1820 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1822 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1824 goto nla_put_failure;
1825 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1826 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1828 if (pinfo->filled & MPATH_INFO_DSN)
1829 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1831 if (pinfo->filled & MPATH_INFO_METRIC)
1832 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1834 if (pinfo->filled & MPATH_INFO_EXPTIME)
1835 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1837 if (pinfo->filled & MPATH_INFO_FLAGS)
1838 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1840 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1841 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1842 pinfo->discovery_timeout);
1843 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1844 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1845 pinfo->discovery_retries);
1847 nla_nest_end(msg, pinfoattr);
1849 return genlmsg_end(msg, hdr);
1852 genlmsg_cancel(msg, hdr);
1856 static int nl80211_dump_mpath(struct sk_buff *skb,
1857 struct netlink_callback *cb)
1859 struct mpath_info pinfo;
1860 struct cfg80211_registered_device *dev;
1861 struct net_device *netdev;
1863 u8 next_hop[ETH_ALEN];
1864 int ifidx = cb->args[0];
1865 int path_idx = cb->args[1];
1869 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1870 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1875 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1878 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1885 netdev = __dev_get_by_index(&init_net, ifidx);
1891 dev = cfg80211_get_dev_from_ifindex(ifidx);
1897 if (!dev->ops->dump_mpath) {
1902 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
1908 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
1909 dst, next_hop, &pinfo);
1915 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1916 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1917 netdev, dst, next_hop,
1926 cb->args[1] = path_idx;
1929 cfg80211_put_dev(dev);
1936 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1938 struct cfg80211_registered_device *drv;
1940 struct net_device *dev;
1941 struct mpath_info pinfo;
1942 struct sk_buff *msg;
1944 u8 next_hop[ETH_ALEN];
1946 memset(&pinfo, 0, sizeof(pinfo));
1948 if (!info->attrs[NL80211_ATTR_MAC])
1951 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1955 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1959 if (!drv->ops->get_mpath) {
1964 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
1969 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
1973 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1977 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
1978 dev, dst, next_hop, &pinfo) < 0)
1981 err = genlmsg_unicast(msg, info->snd_pid);
1987 cfg80211_put_dev(drv);
1995 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
1997 struct cfg80211_registered_device *drv;
1999 struct net_device *dev;
2001 u8 *next_hop = NULL;
2003 if (!info->attrs[NL80211_ATTR_MAC])
2006 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2009 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2010 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2014 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2018 if (!drv->ops->change_mpath) {
2023 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2028 if (!netif_running(dev)) {
2033 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
2036 cfg80211_put_dev(drv);
2043 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2045 struct cfg80211_registered_device *drv;
2047 struct net_device *dev;
2049 u8 *next_hop = NULL;
2051 if (!info->attrs[NL80211_ATTR_MAC])
2054 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2057 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2058 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2062 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2066 if (!drv->ops->add_mpath) {
2071 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2076 if (!netif_running(dev)) {
2081 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
2084 cfg80211_put_dev(drv);
2092 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2094 struct cfg80211_registered_device *drv;
2096 struct net_device *dev;
2099 if (info->attrs[NL80211_ATTR_MAC])
2100 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2104 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2108 if (!drv->ops->del_mpath) {
2113 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
2116 cfg80211_put_dev(drv);
2124 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2126 struct cfg80211_registered_device *drv;
2128 struct net_device *dev;
2129 struct bss_parameters params;
2131 memset(¶ms, 0, sizeof(params));
2132 /* default to not changing parameters */
2133 params.use_cts_prot = -1;
2134 params.use_short_preamble = -1;
2135 params.use_short_slot_time = -1;
2137 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2138 params.use_cts_prot =
2139 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2140 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2141 params.use_short_preamble =
2142 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2143 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2144 params.use_short_slot_time =
2145 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
2146 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2147 params.basic_rates =
2148 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2149 params.basic_rates_len =
2150 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2155 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2159 if (!drv->ops->change_bss) {
2164 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2169 err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms);
2172 cfg80211_put_dev(drv);
2180 static const struct nla_policy
2181 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2182 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2183 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2184 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2185 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2186 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2187 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2190 static int parse_reg_rule(struct nlattr *tb[],
2191 struct ieee80211_reg_rule *reg_rule)
2193 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
2194 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
2196 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2198 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2200 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2202 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2204 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2207 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2209 freq_range->start_freq_khz =
2210 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2211 freq_range->end_freq_khz =
2212 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2213 freq_range->max_bandwidth_khz =
2214 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2216 power_rule->max_eirp =
2217 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2219 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2220 power_rule->max_antenna_gain =
2221 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2226 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2232 * You should only get this when cfg80211 hasn't yet initialized
2233 * completely when built-in to the kernel right between the time
2234 * window between nl80211_init() and regulatory_init(), if that is
2237 mutex_lock(&cfg80211_mutex);
2238 if (unlikely(!cfg80211_regdomain)) {
2239 mutex_unlock(&cfg80211_mutex);
2240 return -EINPROGRESS;
2242 mutex_unlock(&cfg80211_mutex);
2244 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2247 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2249 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
2250 /* We ignore world regdom requests with the old regdom setup */
2251 if (is_world_regdom(data))
2255 r = regulatory_hint_user(data);
2260 static int nl80211_get_mesh_params(struct sk_buff *skb,
2261 struct genl_info *info)
2263 struct cfg80211_registered_device *drv;
2264 struct mesh_config cur_params;
2266 struct net_device *dev;
2268 struct nlattr *pinfoattr;
2269 struct sk_buff *msg;
2273 /* Look up our device */
2274 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2278 if (!drv->ops->get_mesh_params) {
2283 /* Get the mesh params */
2284 err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
2288 /* Draw up a netlink message to send back */
2289 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
2294 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2295 NL80211_CMD_GET_MESH_PARAMS);
2297 goto nla_put_failure;
2298 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2300 goto nla_put_failure;
2301 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2302 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2303 cur_params.dot11MeshRetryTimeout);
2304 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2305 cur_params.dot11MeshConfirmTimeout);
2306 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2307 cur_params.dot11MeshHoldingTimeout);
2308 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2309 cur_params.dot11MeshMaxPeerLinks);
2310 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2311 cur_params.dot11MeshMaxRetries);
2312 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2313 cur_params.dot11MeshTTL);
2314 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2315 cur_params.auto_open_plinks);
2316 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2317 cur_params.dot11MeshHWMPmaxPREQretries);
2318 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2319 cur_params.path_refresh_time);
2320 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2321 cur_params.min_discovery_timeout);
2322 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2323 cur_params.dot11MeshHWMPactivePathTimeout);
2324 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2325 cur_params.dot11MeshHWMPpreqMinInterval);
2326 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2327 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2328 nla_nest_end(msg, pinfoattr);
2329 genlmsg_end(msg, hdr);
2330 err = genlmsg_unicast(msg, info->snd_pid);
2334 genlmsg_cancel(msg, hdr);
2338 cfg80211_put_dev(drv);
2346 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2348 if (table[attr_num]) {\
2349 cfg.param = nla_fn(table[attr_num]); \
2350 mask |= (1 << (attr_num - 1)); \
2354 static struct nla_policy
2355 nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
2356 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2357 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2358 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2359 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2360 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2361 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2362 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2364 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2365 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2366 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2367 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2368 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2369 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2372 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2376 struct cfg80211_registered_device *drv;
2377 struct net_device *dev;
2378 struct mesh_config cfg;
2379 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2380 struct nlattr *parent_attr;
2382 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2385 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2386 parent_attr, nl80211_meshconf_params_policy))
2391 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2395 if (!drv->ops->set_mesh_params) {
2400 /* This makes sure that there aren't more than 32 mesh config
2401 * parameters (otherwise our bitfield scheme would not work.) */
2402 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2404 /* Fill in the params struct */
2406 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2407 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2409 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2410 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2411 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2412 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2413 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2414 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2415 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2416 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2417 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2418 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2419 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2420 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2421 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2423 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2424 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2425 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2426 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2428 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2429 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2431 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2432 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2434 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2435 dot11MeshHWMPnetDiameterTraversalTime,
2436 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2440 err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
2444 cfg80211_put_dev(drv);
2452 #undef FILL_IN_MESH_PARAM_IF_SET
2454 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2456 struct sk_buff *msg;
2458 struct nlattr *nl_reg_rules;
2462 mutex_lock(&cfg80211_mutex);
2464 if (!cfg80211_regdomain)
2467 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
2473 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2474 NL80211_CMD_GET_REG);
2476 goto nla_put_failure;
2478 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2479 cfg80211_regdomain->alpha2);
2481 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2483 goto nla_put_failure;
2485 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2486 struct nlattr *nl_reg_rule;
2487 const struct ieee80211_reg_rule *reg_rule;
2488 const struct ieee80211_freq_range *freq_range;
2489 const struct ieee80211_power_rule *power_rule;
2491 reg_rule = &cfg80211_regdomain->reg_rules[i];
2492 freq_range = ®_rule->freq_range;
2493 power_rule = ®_rule->power_rule;
2495 nl_reg_rule = nla_nest_start(msg, i);
2497 goto nla_put_failure;
2499 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2501 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2502 freq_range->start_freq_khz);
2503 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2504 freq_range->end_freq_khz);
2505 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2506 freq_range->max_bandwidth_khz);
2507 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2508 power_rule->max_antenna_gain);
2509 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2510 power_rule->max_eirp);
2512 nla_nest_end(msg, nl_reg_rule);
2515 nla_nest_end(msg, nl_reg_rules);
2517 genlmsg_end(msg, hdr);
2518 err = genlmsg_unicast(msg, info->snd_pid);
2522 genlmsg_cancel(msg, hdr);
2525 mutex_unlock(&cfg80211_mutex);
2529 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2531 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2532 struct nlattr *nl_reg_rule;
2533 char *alpha2 = NULL;
2534 int rem_reg_rules = 0, r = 0;
2535 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2536 struct ieee80211_regdomain *rd = NULL;
2538 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2541 if (!info->attrs[NL80211_ATTR_REG_RULES])
2544 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2546 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2549 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2553 if (!reg_is_valid_request(alpha2))
2556 size_of_regd = sizeof(struct ieee80211_regdomain) +
2557 (num_rules * sizeof(struct ieee80211_reg_rule));
2559 rd = kzalloc(size_of_regd, GFP_KERNEL);
2563 rd->n_reg_rules = num_rules;
2564 rd->alpha2[0] = alpha2[0];
2565 rd->alpha2[1] = alpha2[1];
2567 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2569 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2570 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2572 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2578 if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
2582 BUG_ON(rule_idx != num_rules);
2584 mutex_lock(&cfg80211_mutex);
2586 mutex_unlock(&cfg80211_mutex);
2594 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2596 struct cfg80211_registered_device *drv;
2597 struct net_device *dev;
2598 struct cfg80211_scan_request *request;
2599 struct cfg80211_ssid *ssid;
2600 struct ieee80211_channel *channel;
2601 struct nlattr *attr;
2602 struct wiphy *wiphy;
2603 int err, tmp, n_ssids = 0, n_channels = 0, i;
2604 enum ieee80211_band band;
2607 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2612 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2616 wiphy = &drv->wiphy;
2618 if (!drv->ops->scan) {
2623 if (!netif_running(dev)) {
2628 if (drv->scan_req) {
2633 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2634 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp)
2641 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2642 if (wiphy->bands[band])
2643 n_channels += wiphy->bands[band]->n_channels;
2646 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2647 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2650 if (n_ssids > wiphy->max_scan_ssids) {
2655 if (info->attrs[NL80211_ATTR_IE])
2656 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2660 if (ie_len > wiphy->max_scan_ie_len) {
2665 request = kzalloc(sizeof(*request)
2666 + sizeof(*ssid) * n_ssids
2667 + sizeof(channel) * n_channels
2668 + ie_len, GFP_KERNEL);
2674 request->channels = (void *)((char *)request + sizeof(*request));
2675 request->n_channels = n_channels;
2677 request->ssids = (void *)(request->channels + n_channels);
2678 request->n_ssids = n_ssids;
2681 request->ie = (void *)(request->ssids + n_ssids);
2683 request->ie = (void *)(request->channels + n_channels);
2686 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2687 /* user specified, bail out if channel not found */
2688 request->n_channels = n_channels;
2690 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
2691 request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr));
2692 if (!request->channels[i]) {
2701 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2703 if (!wiphy->bands[band])
2705 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
2706 request->channels[i] = &wiphy->bands[band]->channels[j];
2713 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
2714 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
2715 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
2719 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2720 request->ssids[i].ssid_len = nla_len(attr);
2725 if (info->attrs[NL80211_ATTR_IE]) {
2726 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2727 memcpy((void *)request->ie,
2728 nla_data(info->attrs[NL80211_ATTR_IE]),
2732 request->ifidx = dev->ifindex;
2733 request->wiphy = &drv->wiphy;
2735 drv->scan_req = request;
2736 err = drv->ops->scan(&drv->wiphy, dev, request);
2740 drv->scan_req = NULL;
2744 cfg80211_put_dev(drv);
2752 static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
2753 struct cfg80211_registered_device *rdev,
2754 struct net_device *dev,
2755 struct cfg80211_bss *res)
2760 hdr = nl80211hdr_put(msg, pid, seq, flags,
2761 NL80211_CMD_NEW_SCAN_RESULTS);
2765 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION,
2766 rdev->bss_generation);
2767 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2769 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
2771 goto nla_put_failure;
2772 if (!is_zero_ether_addr(res->bssid))
2773 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
2774 if (res->information_elements && res->len_information_elements)
2775 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
2776 res->len_information_elements,
2777 res->information_elements);
2779 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
2780 if (res->beacon_interval)
2781 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
2782 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
2783 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
2785 switch (rdev->wiphy.signal_type) {
2786 case CFG80211_SIGNAL_TYPE_MBM:
2787 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
2789 case CFG80211_SIGNAL_TYPE_UNSPEC:
2790 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
2796 nla_nest_end(msg, bss);
2798 return genlmsg_end(msg, hdr);
2801 genlmsg_cancel(msg, hdr);
2805 static int nl80211_dump_scan(struct sk_buff *skb,
2806 struct netlink_callback *cb)
2808 struct cfg80211_registered_device *dev;
2809 struct net_device *netdev;
2810 struct cfg80211_internal_bss *scan;
2811 int ifidx = cb->args[0];
2812 int start = cb->args[1], idx = 0;
2816 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
2817 nl80211_fam.attrbuf, nl80211_fam.maxattr,
2822 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
2825 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
2828 cb->args[0] = ifidx;
2831 netdev = dev_get_by_index(&init_net, ifidx);
2835 dev = cfg80211_get_dev_from_ifindex(ifidx);
2838 goto out_put_netdev;
2841 spin_lock_bh(&dev->bss_lock);
2842 cfg80211_bss_expire(dev);
2844 list_for_each_entry(scan, &dev->bss_list, list) {
2847 if (nl80211_send_bss(skb,
2848 NETLINK_CB(cb->skb).pid,
2849 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2850 dev, netdev, &scan->pub) < 0) {
2857 spin_unlock_bh(&dev->bss_lock);
2861 cfg80211_put_dev(dev);
2868 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
2870 return auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM ||
2871 auth_type == NL80211_AUTHTYPE_SHARED_KEY ||
2872 auth_type == NL80211_AUTHTYPE_FT ||
2873 auth_type == NL80211_AUTHTYPE_NETWORK_EAP;
2876 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
2878 struct cfg80211_registered_device *drv;
2879 struct net_device *dev;
2880 struct cfg80211_auth_request req;
2881 struct wiphy *wiphy;
2884 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2887 if (!info->attrs[NL80211_ATTR_MAC])
2890 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
2895 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2899 if (!drv->ops->auth) {
2904 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
2909 if (!netif_running(dev)) {
2914 wiphy = &drv->wiphy;
2915 memset(&req, 0, sizeof(req));
2917 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2919 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2920 req.chan = ieee80211_get_channel(
2922 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
2929 if (info->attrs[NL80211_ATTR_SSID]) {
2930 req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2931 req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
2934 if (info->attrs[NL80211_ATTR_IE]) {
2935 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
2936 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2939 req.auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
2940 if (!nl80211_valid_auth_type(req.auth_type)) {
2945 err = drv->ops->auth(&drv->wiphy, dev, &req);
2948 cfg80211_put_dev(drv);
2955 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
2957 struct cfg80211_registered_device *drv;
2958 struct net_device *dev;
2959 struct cfg80211_assoc_request req;
2960 struct wiphy *wiphy;
2963 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2966 if (!info->attrs[NL80211_ATTR_MAC] ||
2967 !info->attrs[NL80211_ATTR_SSID])
2972 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2976 if (!drv->ops->assoc) {
2981 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
2986 if (!netif_running(dev)) {
2991 wiphy = &drv->wiphy;
2992 memset(&req, 0, sizeof(req));
2994 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2996 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2997 req.chan = ieee80211_get_channel(
2999 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3006 req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3007 req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3009 if (info->attrs[NL80211_ATTR_IE]) {
3010 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3011 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3014 err = drv->ops->assoc(&drv->wiphy, dev, &req);
3017 cfg80211_put_dev(drv);
3024 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3026 struct cfg80211_registered_device *drv;
3027 struct net_device *dev;
3028 struct cfg80211_deauth_request req;
3029 struct wiphy *wiphy;
3032 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3035 if (!info->attrs[NL80211_ATTR_MAC])
3038 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3043 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
3047 if (!drv->ops->deauth) {
3052 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3057 if (!netif_running(dev)) {
3062 wiphy = &drv->wiphy;
3063 memset(&req, 0, sizeof(req));
3065 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3067 req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3068 if (req.reason_code == 0) {
3069 /* Reason Code 0 is reserved */
3074 if (info->attrs[NL80211_ATTR_IE]) {
3075 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3076 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3079 err = drv->ops->deauth(&drv->wiphy, dev, &req);
3082 cfg80211_put_dev(drv);
3089 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3091 struct cfg80211_registered_device *drv;
3092 struct net_device *dev;
3093 struct cfg80211_disassoc_request req;
3094 struct wiphy *wiphy;
3097 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3100 if (!info->attrs[NL80211_ATTR_MAC])
3103 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3108 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
3112 if (!drv->ops->disassoc) {
3117 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3122 if (!netif_running(dev)) {
3127 wiphy = &drv->wiphy;
3128 memset(&req, 0, sizeof(req));
3130 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3132 req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3133 if (req.reason_code == 0) {
3134 /* Reason Code 0 is reserved */
3139 if (info->attrs[NL80211_ATTR_IE]) {
3140 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3141 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3144 err = drv->ops->disassoc(&drv->wiphy, dev, &req);
3147 cfg80211_put_dev(drv);
3154 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3156 struct cfg80211_registered_device *drv;
3157 struct net_device *dev;
3158 struct cfg80211_ibss_params ibss;
3159 struct wiphy *wiphy;
3162 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3165 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3166 !info->attrs[NL80211_ATTR_SSID] ||
3167 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3172 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
3176 if (!drv->ops->join_ibss) {
3181 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3186 if (!netif_running(dev)) {
3191 wiphy = &drv->wiphy;
3192 memset(&ibss, 0, sizeof(ibss));
3194 if (info->attrs[NL80211_ATTR_MAC])
3195 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3196 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3197 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3199 if (info->attrs[NL80211_ATTR_IE]) {
3200 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3201 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3204 ibss.channel = ieee80211_get_channel(wiphy,
3205 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3206 if (!ibss.channel ||
3207 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3208 ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
3213 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
3215 err = cfg80211_join_ibss(drv, dev, &ibss);
3218 cfg80211_put_dev(drv);
3225 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3227 struct cfg80211_registered_device *drv;
3228 struct net_device *dev;
3233 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
3237 if (!drv->ops->leave_ibss) {
3242 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3247 if (!netif_running(dev)) {
3252 err = cfg80211_leave_ibss(drv, dev, false);
3255 cfg80211_put_dev(drv);
3262 static struct genl_ops nl80211_ops[] = {
3264 .cmd = NL80211_CMD_GET_WIPHY,
3265 .doit = nl80211_get_wiphy,
3266 .dumpit = nl80211_dump_wiphy,
3267 .policy = nl80211_policy,
3268 /* can be retrieved by unprivileged users */
3271 .cmd = NL80211_CMD_SET_WIPHY,
3272 .doit = nl80211_set_wiphy,
3273 .policy = nl80211_policy,
3274 .flags = GENL_ADMIN_PERM,
3277 .cmd = NL80211_CMD_GET_INTERFACE,
3278 .doit = nl80211_get_interface,
3279 .dumpit = nl80211_dump_interface,
3280 .policy = nl80211_policy,
3281 /* can be retrieved by unprivileged users */
3284 .cmd = NL80211_CMD_SET_INTERFACE,
3285 .doit = nl80211_set_interface,
3286 .policy = nl80211_policy,
3287 .flags = GENL_ADMIN_PERM,
3290 .cmd = NL80211_CMD_NEW_INTERFACE,
3291 .doit = nl80211_new_interface,
3292 .policy = nl80211_policy,
3293 .flags = GENL_ADMIN_PERM,
3296 .cmd = NL80211_CMD_DEL_INTERFACE,
3297 .doit = nl80211_del_interface,
3298 .policy = nl80211_policy,
3299 .flags = GENL_ADMIN_PERM,
3302 .cmd = NL80211_CMD_GET_KEY,
3303 .doit = nl80211_get_key,
3304 .policy = nl80211_policy,
3305 .flags = GENL_ADMIN_PERM,
3308 .cmd = NL80211_CMD_SET_KEY,
3309 .doit = nl80211_set_key,
3310 .policy = nl80211_policy,
3311 .flags = GENL_ADMIN_PERM,
3314 .cmd = NL80211_CMD_NEW_KEY,
3315 .doit = nl80211_new_key,
3316 .policy = nl80211_policy,
3317 .flags = GENL_ADMIN_PERM,
3320 .cmd = NL80211_CMD_DEL_KEY,
3321 .doit = nl80211_del_key,
3322 .policy = nl80211_policy,
3323 .flags = GENL_ADMIN_PERM,
3326 .cmd = NL80211_CMD_SET_BEACON,
3327 .policy = nl80211_policy,
3328 .flags = GENL_ADMIN_PERM,
3329 .doit = nl80211_addset_beacon,
3332 .cmd = NL80211_CMD_NEW_BEACON,
3333 .policy = nl80211_policy,
3334 .flags = GENL_ADMIN_PERM,
3335 .doit = nl80211_addset_beacon,
3338 .cmd = NL80211_CMD_DEL_BEACON,
3339 .policy = nl80211_policy,
3340 .flags = GENL_ADMIN_PERM,
3341 .doit = nl80211_del_beacon,
3344 .cmd = NL80211_CMD_GET_STATION,
3345 .doit = nl80211_get_station,
3346 .dumpit = nl80211_dump_station,
3347 .policy = nl80211_policy,
3350 .cmd = NL80211_CMD_SET_STATION,
3351 .doit = nl80211_set_station,
3352 .policy = nl80211_policy,
3353 .flags = GENL_ADMIN_PERM,
3356 .cmd = NL80211_CMD_NEW_STATION,
3357 .doit = nl80211_new_station,
3358 .policy = nl80211_policy,
3359 .flags = GENL_ADMIN_PERM,
3362 .cmd = NL80211_CMD_DEL_STATION,
3363 .doit = nl80211_del_station,
3364 .policy = nl80211_policy,
3365 .flags = GENL_ADMIN_PERM,
3368 .cmd = NL80211_CMD_GET_MPATH,
3369 .doit = nl80211_get_mpath,
3370 .dumpit = nl80211_dump_mpath,
3371 .policy = nl80211_policy,
3372 .flags = GENL_ADMIN_PERM,
3375 .cmd = NL80211_CMD_SET_MPATH,
3376 .doit = nl80211_set_mpath,
3377 .policy = nl80211_policy,
3378 .flags = GENL_ADMIN_PERM,
3381 .cmd = NL80211_CMD_NEW_MPATH,
3382 .doit = nl80211_new_mpath,
3383 .policy = nl80211_policy,
3384 .flags = GENL_ADMIN_PERM,
3387 .cmd = NL80211_CMD_DEL_MPATH,
3388 .doit = nl80211_del_mpath,
3389 .policy = nl80211_policy,
3390 .flags = GENL_ADMIN_PERM,
3393 .cmd = NL80211_CMD_SET_BSS,
3394 .doit = nl80211_set_bss,
3395 .policy = nl80211_policy,
3396 .flags = GENL_ADMIN_PERM,
3399 .cmd = NL80211_CMD_GET_REG,
3400 .doit = nl80211_get_reg,
3401 .policy = nl80211_policy,
3402 /* can be retrieved by unprivileged users */
3405 .cmd = NL80211_CMD_SET_REG,
3406 .doit = nl80211_set_reg,
3407 .policy = nl80211_policy,
3408 .flags = GENL_ADMIN_PERM,
3411 .cmd = NL80211_CMD_REQ_SET_REG,
3412 .doit = nl80211_req_set_reg,
3413 .policy = nl80211_policy,
3414 .flags = GENL_ADMIN_PERM,
3417 .cmd = NL80211_CMD_GET_MESH_PARAMS,
3418 .doit = nl80211_get_mesh_params,
3419 .policy = nl80211_policy,
3420 /* can be retrieved by unprivileged users */
3423 .cmd = NL80211_CMD_SET_MESH_PARAMS,
3424 .doit = nl80211_set_mesh_params,
3425 .policy = nl80211_policy,
3426 .flags = GENL_ADMIN_PERM,
3429 .cmd = NL80211_CMD_TRIGGER_SCAN,
3430 .doit = nl80211_trigger_scan,
3431 .policy = nl80211_policy,
3432 .flags = GENL_ADMIN_PERM,
3435 .cmd = NL80211_CMD_GET_SCAN,
3436 .policy = nl80211_policy,
3437 .dumpit = nl80211_dump_scan,
3440 .cmd = NL80211_CMD_AUTHENTICATE,
3441 .doit = nl80211_authenticate,
3442 .policy = nl80211_policy,
3443 .flags = GENL_ADMIN_PERM,
3446 .cmd = NL80211_CMD_ASSOCIATE,
3447 .doit = nl80211_associate,
3448 .policy = nl80211_policy,
3449 .flags = GENL_ADMIN_PERM,
3452 .cmd = NL80211_CMD_DEAUTHENTICATE,
3453 .doit = nl80211_deauthenticate,
3454 .policy = nl80211_policy,
3455 .flags = GENL_ADMIN_PERM,
3458 .cmd = NL80211_CMD_DISASSOCIATE,
3459 .doit = nl80211_disassociate,
3460 .policy = nl80211_policy,
3461 .flags = GENL_ADMIN_PERM,
3464 .cmd = NL80211_CMD_JOIN_IBSS,
3465 .doit = nl80211_join_ibss,
3466 .policy = nl80211_policy,
3467 .flags = GENL_ADMIN_PERM,
3470 .cmd = NL80211_CMD_LEAVE_IBSS,
3471 .doit = nl80211_leave_ibss,
3472 .policy = nl80211_policy,
3473 .flags = GENL_ADMIN_PERM,
3476 static struct genl_multicast_group nl80211_mlme_mcgrp = {
3480 /* multicast groups */
3481 static struct genl_multicast_group nl80211_config_mcgrp = {
3484 static struct genl_multicast_group nl80211_scan_mcgrp = {
3487 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
3488 .name = "regulatory",
3491 /* notification functions */
3493 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
3495 struct sk_buff *msg;
3497 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
3501 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
3506 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
3509 static int nl80211_send_scan_donemsg(struct sk_buff *msg,
3510 struct cfg80211_registered_device *rdev,
3511 struct net_device *netdev,
3512 u32 pid, u32 seq, int flags,
3517 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
3521 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3522 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3524 /* XXX: we should probably bounce back the request? */
3526 return genlmsg_end(msg, hdr);
3529 genlmsg_cancel(msg, hdr);
3533 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
3534 struct net_device *netdev)
3536 struct sk_buff *msg;
3538 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
3542 if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0,
3543 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
3548 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
3551 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
3552 struct net_device *netdev)
3554 struct sk_buff *msg;
3556 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
3560 if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0,
3561 NL80211_CMD_SCAN_ABORTED) < 0) {
3566 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
3570 * This can happen on global regulatory changes or device specific settings
3571 * based on custom world regulatory domains.
3573 void nl80211_send_reg_change_event(struct regulatory_request *request)
3575 struct sk_buff *msg;
3578 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
3582 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
3588 /* Userspace can always count this one always being set */
3589 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
3591 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
3592 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
3593 NL80211_REGDOM_TYPE_WORLD);
3594 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
3595 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
3596 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
3597 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
3599 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
3600 NL80211_REGDOM_TYPE_INTERSECTION);
3602 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
3603 NL80211_REGDOM_TYPE_COUNTRY);
3604 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
3607 if (wiphy_idx_valid(request->wiphy_idx))
3608 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
3610 if (genlmsg_end(msg, hdr) < 0) {
3615 genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL);
3620 genlmsg_cancel(msg, hdr);
3624 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
3625 struct net_device *netdev,
3626 const u8 *buf, size_t len,
3627 enum nl80211_commands cmd)
3629 struct sk_buff *msg;
3632 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
3636 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
3642 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3643 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3644 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
3646 if (genlmsg_end(msg, hdr) < 0) {
3651 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
3655 genlmsg_cancel(msg, hdr);
3659 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
3660 struct net_device *netdev, const u8 *buf, size_t len)
3662 nl80211_send_mlme_event(rdev, netdev, buf, len,
3663 NL80211_CMD_AUTHENTICATE);
3666 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
3667 struct net_device *netdev, const u8 *buf,
3670 nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE);
3673 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
3674 struct net_device *netdev, const u8 *buf, size_t len)
3676 nl80211_send_mlme_event(rdev, netdev, buf, len,
3677 NL80211_CMD_DEAUTHENTICATE);
3680 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
3681 struct net_device *netdev, const u8 *buf,
3684 nl80211_send_mlme_event(rdev, netdev, buf, len,
3685 NL80211_CMD_DISASSOCIATE);
3688 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
3689 struct net_device *netdev, const u8 *bssid,
3692 struct sk_buff *msg;
3695 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
3699 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
3705 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3706 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3707 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
3709 if (genlmsg_end(msg, hdr) < 0) {
3714 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
3718 genlmsg_cancel(msg, hdr);
3722 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
3723 struct net_device *netdev, const u8 *addr,
3724 enum nl80211_key_type key_type, int key_id,
3727 struct sk_buff *msg;
3730 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
3734 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
3740 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3741 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3743 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3744 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
3745 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
3747 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
3749 if (genlmsg_end(msg, hdr) < 0) {
3754 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
3758 genlmsg_cancel(msg, hdr);
3762 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
3763 struct ieee80211_channel *channel_before,
3764 struct ieee80211_channel *channel_after)
3766 struct sk_buff *msg;
3768 struct nlattr *nl_freq;
3770 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
3774 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
3781 * Since we are applying the beacon hint to a wiphy we know its
3782 * wiphy_idx is valid
3784 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
3787 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
3789 goto nla_put_failure;
3790 if (nl80211_msg_put_channel(msg, channel_before))
3791 goto nla_put_failure;
3792 nla_nest_end(msg, nl_freq);
3795 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
3797 goto nla_put_failure;
3798 if (nl80211_msg_put_channel(msg, channel_after))
3799 goto nla_put_failure;
3800 nla_nest_end(msg, nl_freq);
3802 if (genlmsg_end(msg, hdr) < 0) {
3807 genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
3812 genlmsg_cancel(msg, hdr);
3816 /* initialisation/exit functions */
3818 int nl80211_init(void)
3822 err = genl_register_family(&nl80211_fam);
3826 for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
3827 err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
3832 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
3836 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
3840 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
3844 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
3850 genl_unregister_family(&nl80211_fam);
3854 void nl80211_exit(void)
3856 genl_unregister_family(&nl80211_fam);