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/mutex.h>
11 #include <linux/list.h>
12 #include <linux/if_ether.h>
13 #include <linux/ieee80211.h>
14 #include <linux/nl80211.h>
15 #include <linux/rtnetlink.h>
16 #include <linux/netlink.h>
17 #include <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_SEC_CHAN_OFFSET] = { .type = NLA_U32 },
65 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
66 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
67 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
69 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
71 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
72 .len = WLAN_MAX_KEY_LEN },
73 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
74 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
75 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
77 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
78 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
79 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
80 .len = IEEE80211_MAX_DATA_LEN },
81 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
82 .len = IEEE80211_MAX_DATA_LEN },
83 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
84 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
85 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
86 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
87 .len = NL80211_MAX_SUPP_RATES },
88 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
89 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
90 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
91 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
92 .len = IEEE80211_MAX_MESH_ID_LEN },
93 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
95 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
96 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
98 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
99 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
100 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
101 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
102 .len = NL80211_MAX_SUPP_RATES },
104 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
107 .len = NL80211_HT_CAPABILITY_LEN },
110 /* message building helper */
111 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
114 /* since there is no private header just add the generic one */
115 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
118 /* netlink command implementations */
120 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
121 struct cfg80211_registered_device *dev)
124 struct nlattr *nl_bands, *nl_band;
125 struct nlattr *nl_freqs, *nl_freq;
126 struct nlattr *nl_rates, *nl_rate;
127 struct nlattr *nl_modes;
128 enum ieee80211_band band;
129 struct ieee80211_channel *chan;
130 struct ieee80211_rate *rate;
132 u16 ifmodes = dev->wiphy.interface_modes;
134 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
138 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
139 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
141 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
143 goto nla_put_failure;
148 NLA_PUT_FLAG(msg, i);
153 nla_nest_end(msg, nl_modes);
155 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
157 goto nla_put_failure;
159 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
160 if (!dev->wiphy.bands[band])
163 nl_band = nla_nest_start(msg, band);
165 goto nla_put_failure;
168 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
169 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
170 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
171 &dev->wiphy.bands[band]->ht_cap.mcs);
172 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
173 dev->wiphy.bands[band]->ht_cap.cap);
174 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
175 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
176 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
177 dev->wiphy.bands[band]->ht_cap.ampdu_density);
180 /* add frequencies */
181 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
183 goto nla_put_failure;
185 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
186 nl_freq = nla_nest_start(msg, i);
188 goto nla_put_failure;
190 chan = &dev->wiphy.bands[band]->channels[i];
191 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
194 if (chan->flags & IEEE80211_CHAN_DISABLED)
195 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
196 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
197 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
198 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
199 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
200 if (chan->flags & IEEE80211_CHAN_RADAR)
201 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
203 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
204 DBM_TO_MBM(chan->max_power));
206 nla_nest_end(msg, nl_freq);
209 nla_nest_end(msg, nl_freqs);
212 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
214 goto nla_put_failure;
216 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
217 nl_rate = nla_nest_start(msg, i);
219 goto nla_put_failure;
221 rate = &dev->wiphy.bands[band]->bitrates[i];
222 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
224 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
226 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
228 nla_nest_end(msg, nl_rate);
231 nla_nest_end(msg, nl_rates);
233 nla_nest_end(msg, nl_band);
235 nla_nest_end(msg, nl_bands);
237 return genlmsg_end(msg, hdr);
240 genlmsg_cancel(msg, hdr);
244 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
247 int start = cb->args[0];
248 struct cfg80211_registered_device *dev;
250 mutex_lock(&cfg80211_drv_mutex);
251 list_for_each_entry(dev, &cfg80211_drv_list, list) {
254 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
255 cb->nlh->nlmsg_seq, NLM_F_MULTI,
261 mutex_unlock(&cfg80211_drv_mutex);
268 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
271 struct cfg80211_registered_device *dev;
273 dev = cfg80211_get_dev_from_info(info);
277 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
281 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
284 cfg80211_put_dev(dev);
286 return genlmsg_unicast(msg, info->snd_pid);
291 cfg80211_put_dev(dev);
295 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
296 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
297 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
298 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
299 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
300 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
303 static int parse_txq_params(struct nlattr *tb[],
304 struct ieee80211_txq_params *txq_params)
306 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
307 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
308 !tb[NL80211_TXQ_ATTR_AIFS])
311 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
312 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
313 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
314 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
315 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
320 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
322 struct cfg80211_registered_device *rdev;
323 int result = 0, rem_txq_params = 0;
324 struct nlattr *nl_txq_params;
326 rdev = cfg80211_get_dev_from_info(info);
328 return PTR_ERR(rdev);
330 if (info->attrs[NL80211_ATTR_WIPHY_NAME]) {
331 result = cfg80211_dev_rename(
332 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
337 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
338 struct ieee80211_txq_params txq_params;
339 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
341 if (!rdev->ops->set_txq_params) {
342 result = -EOPNOTSUPP;
346 nla_for_each_nested(nl_txq_params,
347 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
349 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
350 nla_data(nl_txq_params),
351 nla_len(nl_txq_params),
353 result = parse_txq_params(tb, &txq_params);
357 result = rdev->ops->set_txq_params(&rdev->wiphy,
364 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
365 enum nl80211_sec_chan_offset sec_chan_offset =
366 NL80211_SEC_CHAN_NO_HT;
367 struct ieee80211_channel *chan;
368 struct ieee80211_sta_ht_cap *ht_cap;
371 if (!rdev->ops->set_channel) {
372 result = -EOPNOTSUPP;
378 if (info->attrs[NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]) {
379 sec_chan_offset = nla_get_u32(info->attrs[
380 NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]);
381 if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
382 sec_chan_offset != NL80211_SEC_CHAN_DISABLED &&
383 sec_chan_offset != NL80211_SEC_CHAN_BELOW &&
384 sec_chan_offset != NL80211_SEC_CHAN_ABOVE)
388 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
389 chan = ieee80211_get_channel(&rdev->wiphy, freq);
391 /* Primary channel not allowed */
392 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
395 if (sec_chan_offset == NL80211_SEC_CHAN_BELOW)
396 sec_freq = freq - 20;
397 else if (sec_chan_offset == NL80211_SEC_CHAN_ABOVE)
398 sec_freq = freq + 20;
402 ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
404 /* no HT capabilities */
405 if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
406 !ht_cap->ht_supported)
410 struct ieee80211_channel *schan;
412 /* no 40 MHz capabilities */
413 if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
414 (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
417 schan = ieee80211_get_channel(&rdev->wiphy, sec_freq);
419 /* Secondary channel not allowed */
420 if (!schan || schan->flags & IEEE80211_CHAN_DISABLED)
424 result = rdev->ops->set_channel(&rdev->wiphy, chan,
432 cfg80211_put_dev(rdev);
437 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
438 struct net_device *dev)
442 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
446 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
447 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
448 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
449 return genlmsg_end(msg, hdr);
452 genlmsg_cancel(msg, hdr);
456 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
460 int wp_start = cb->args[0];
461 int if_start = cb->args[1];
462 struct cfg80211_registered_device *dev;
463 struct wireless_dev *wdev;
465 mutex_lock(&cfg80211_drv_mutex);
466 list_for_each_entry(dev, &cfg80211_drv_list, list) {
467 if (wp_idx < wp_start) {
473 mutex_lock(&dev->devlist_mtx);
474 list_for_each_entry(wdev, &dev->netdev_list, list) {
475 if (if_idx < if_start) {
479 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
480 cb->nlh->nlmsg_seq, NLM_F_MULTI,
482 mutex_unlock(&dev->devlist_mtx);
487 mutex_unlock(&dev->devlist_mtx);
492 mutex_unlock(&cfg80211_drv_mutex);
494 cb->args[0] = wp_idx;
495 cb->args[1] = if_idx;
500 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
503 struct cfg80211_registered_device *dev;
504 struct net_device *netdev;
507 err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev);
511 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
515 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
519 cfg80211_put_dev(dev);
521 return genlmsg_unicast(msg, info->snd_pid);
527 cfg80211_put_dev(dev);
531 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
532 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
533 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
534 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
535 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
536 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
539 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
541 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
549 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
550 nla, mntr_flags_policy))
553 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
555 *mntrflags |= (1<<flag);
560 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
562 struct cfg80211_registered_device *drv;
563 struct vif_params params;
565 enum nl80211_iftype type;
566 struct net_device *dev;
567 u32 _flags, *flags = NULL;
569 memset(¶ms, 0, sizeof(params));
571 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
574 ifindex = dev->ifindex;
575 type = dev->ieee80211_ptr->iftype;
579 if (info->attrs[NL80211_ATTR_IFTYPE]) {
580 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
581 if (type > NL80211_IFTYPE_MAX)
585 if (!drv->ops->change_virtual_intf ||
586 !(drv->wiphy.interface_modes & (1 << type))) {
591 if (info->attrs[NL80211_ATTR_MESH_ID]) {
592 if (type != NL80211_IFTYPE_MESH_POINT) {
596 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
597 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
600 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
601 if (type != NL80211_IFTYPE_MONITOR) {
605 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
611 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
612 type, flags, ¶ms);
614 dev = __dev_get_by_index(&init_net, ifindex);
615 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
620 cfg80211_put_dev(drv);
624 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
626 struct cfg80211_registered_device *drv;
627 struct vif_params params;
629 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
632 memset(¶ms, 0, sizeof(params));
634 if (!info->attrs[NL80211_ATTR_IFNAME])
637 if (info->attrs[NL80211_ATTR_IFTYPE]) {
638 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
639 if (type > NL80211_IFTYPE_MAX)
643 drv = cfg80211_get_dev_from_info(info);
647 if (!drv->ops->add_virtual_intf ||
648 !(drv->wiphy.interface_modes & (1 << type))) {
653 if (type == NL80211_IFTYPE_MESH_POINT &&
654 info->attrs[NL80211_ATTR_MESH_ID]) {
655 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
656 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
660 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
661 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
663 err = drv->ops->add_virtual_intf(&drv->wiphy,
664 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
665 type, err ? NULL : &flags, ¶ms);
670 cfg80211_put_dev(drv);
674 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
676 struct cfg80211_registered_device *drv;
678 struct net_device *dev;
680 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
683 ifindex = dev->ifindex;
686 if (!drv->ops->del_virtual_intf) {
692 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
696 cfg80211_put_dev(drv);
700 struct get_key_cookie {
705 static void get_key_callback(void *c, struct key_params *params)
707 struct get_key_cookie *cookie = c;
710 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
711 params->key_len, params->key);
714 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
715 params->seq_len, params->seq);
718 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
726 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
728 struct cfg80211_registered_device *drv;
730 struct net_device *dev;
733 struct get_key_cookie cookie = {
739 if (info->attrs[NL80211_ATTR_KEY_IDX])
740 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
745 if (info->attrs[NL80211_ATTR_MAC])
746 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
748 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
752 if (!drv->ops->get_key) {
757 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
763 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
764 NL80211_CMD_NEW_KEY);
773 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
774 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
776 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
779 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
780 &cookie, get_key_callback);
787 goto nla_put_failure;
789 genlmsg_end(msg, hdr);
790 err = genlmsg_unicast(msg, info->snd_pid);
797 cfg80211_put_dev(drv);
802 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
804 struct cfg80211_registered_device *drv;
806 struct net_device *dev;
809 if (!info->attrs[NL80211_ATTR_KEY_IDX])
812 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
817 /* currently only support setting default key */
818 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
821 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
825 if (!drv->ops->set_default_key) {
831 err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
835 cfg80211_put_dev(drv);
840 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
842 struct cfg80211_registered_device *drv;
844 struct net_device *dev;
845 struct key_params params;
849 memset(¶ms, 0, sizeof(params));
851 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
854 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
855 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
856 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
859 if (info->attrs[NL80211_ATTR_KEY_IDX])
860 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
862 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
864 if (info->attrs[NL80211_ATTR_MAC])
865 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
871 * Disallow pairwise keys with non-zero index unless it's WEP
872 * (because current deployments use pairwise WEP keys with
873 * non-zero indizes but 802.11i clearly specifies to use zero)
875 if (mac_addr && key_idx &&
876 params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
877 params.cipher != WLAN_CIPHER_SUITE_WEP104)
880 /* TODO: add definitions for the lengths to linux/ieee80211.h */
881 switch (params.cipher) {
882 case WLAN_CIPHER_SUITE_WEP40:
883 if (params.key_len != 5)
886 case WLAN_CIPHER_SUITE_TKIP:
887 if (params.key_len != 32)
890 case WLAN_CIPHER_SUITE_CCMP:
891 if (params.key_len != 16)
894 case WLAN_CIPHER_SUITE_WEP104:
895 if (params.key_len != 13)
902 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
906 if (!drv->ops->add_key) {
912 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms);
916 cfg80211_put_dev(drv);
921 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
923 struct cfg80211_registered_device *drv;
925 struct net_device *dev;
929 if (info->attrs[NL80211_ATTR_KEY_IDX])
930 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
935 if (info->attrs[NL80211_ATTR_MAC])
936 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
938 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
942 if (!drv->ops->del_key) {
948 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
952 cfg80211_put_dev(drv);
957 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
959 int (*call)(struct wiphy *wiphy, struct net_device *dev,
960 struct beacon_parameters *info);
961 struct cfg80211_registered_device *drv;
963 struct net_device *dev;
964 struct beacon_parameters params;
967 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
971 switch (info->genlhdr->cmd) {
972 case NL80211_CMD_NEW_BEACON:
973 /* these are required for NEW_BEACON */
974 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
975 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
976 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
981 call = drv->ops->add_beacon;
983 case NL80211_CMD_SET_BEACON:
984 call = drv->ops->set_beacon;
997 memset(¶ms, 0, sizeof(params));
999 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1001 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1005 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1006 params.dtim_period =
1007 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1011 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1012 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1014 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1018 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1019 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1021 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1031 err = call(&drv->wiphy, dev, ¶ms);
1035 cfg80211_put_dev(drv);
1040 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1042 struct cfg80211_registered_device *drv;
1044 struct net_device *dev;
1046 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1050 if (!drv->ops->del_beacon) {
1056 err = drv->ops->del_beacon(&drv->wiphy, dev);
1060 cfg80211_put_dev(drv);
1065 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1066 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1067 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1068 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1071 static int parse_station_flags(struct nlattr *nla, u32 *staflags)
1073 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1081 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1082 nla, sta_flags_policy))
1085 *staflags = STATION_FLAG_CHANGED;
1087 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1089 *staflags |= (1<<flag);
1094 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1095 int flags, struct net_device *dev,
1096 u8 *mac_addr, struct station_info *sinfo)
1099 struct nlattr *sinfoattr;
1101 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1105 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1106 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1108 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1110 goto nla_put_failure;
1111 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1112 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1113 sinfo->inactive_time);
1114 if (sinfo->filled & STATION_INFO_RX_BYTES)
1115 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1117 if (sinfo->filled & STATION_INFO_TX_BYTES)
1118 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1120 if (sinfo->filled & STATION_INFO_LLID)
1121 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1123 if (sinfo->filled & STATION_INFO_PLID)
1124 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1126 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1127 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1128 sinfo->plink_state);
1130 nla_nest_end(msg, sinfoattr);
1132 return genlmsg_end(msg, hdr);
1135 genlmsg_cancel(msg, hdr);
1139 static int nl80211_dump_station(struct sk_buff *skb,
1140 struct netlink_callback *cb)
1142 struct station_info sinfo;
1143 struct cfg80211_registered_device *dev;
1144 struct net_device *netdev;
1145 u8 mac_addr[ETH_ALEN];
1146 int ifidx = cb->args[0];
1147 int sta_idx = cb->args[1];
1151 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1152 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1157 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1160 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1165 netdev = dev_get_by_index(&init_net, ifidx);
1169 dev = cfg80211_get_dev_from_ifindex(ifidx);
1172 goto out_put_netdev;
1175 if (!dev->ops->dump_station) {
1183 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1190 if (nl80211_send_station(skb,
1191 NETLINK_CB(cb->skb).pid,
1192 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1202 cb->args[1] = sta_idx;
1207 cfg80211_put_dev(dev);
1214 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1216 struct cfg80211_registered_device *drv;
1218 struct net_device *dev;
1219 struct station_info sinfo;
1220 struct sk_buff *msg;
1221 u8 *mac_addr = NULL;
1223 memset(&sinfo, 0, sizeof(sinfo));
1225 if (!info->attrs[NL80211_ATTR_MAC])
1228 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1230 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1234 if (!drv->ops->get_station) {
1240 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
1246 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1250 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1251 dev, mac_addr, &sinfo) < 0)
1254 err = genlmsg_unicast(msg, info->snd_pid);
1261 cfg80211_put_dev(drv);
1267 * Get vlan interface making sure it is on the right wiphy.
1269 static int get_vlan(struct nlattr *vlanattr,
1270 struct cfg80211_registered_device *rdev,
1271 struct net_device **vlan)
1276 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1279 if (!(*vlan)->ieee80211_ptr)
1281 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1287 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1289 struct cfg80211_registered_device *drv;
1291 struct net_device *dev;
1292 struct station_parameters params;
1293 u8 *mac_addr = NULL;
1295 memset(¶ms, 0, sizeof(params));
1297 params.listen_interval = -1;
1299 if (info->attrs[NL80211_ATTR_STA_AID])
1302 if (!info->attrs[NL80211_ATTR_MAC])
1305 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1307 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1308 params.supported_rates =
1309 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1310 params.supported_rates_len =
1311 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1314 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1315 params.listen_interval =
1316 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1318 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1320 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1322 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1323 ¶ms.station_flags))
1326 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1327 params.plink_action =
1328 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1330 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1334 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
1338 if (!drv->ops->change_station) {
1344 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms);
1349 dev_put(params.vlan);
1350 cfg80211_put_dev(drv);
1355 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1357 struct cfg80211_registered_device *drv;
1359 struct net_device *dev;
1360 struct station_parameters params;
1361 u8 *mac_addr = NULL;
1363 memset(¶ms, 0, sizeof(params));
1365 if (!info->attrs[NL80211_ATTR_MAC])
1368 if (!info->attrs[NL80211_ATTR_STA_AID])
1371 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1374 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1377 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1378 params.supported_rates =
1379 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1380 params.supported_rates_len =
1381 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1382 params.listen_interval =
1383 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1384 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
1385 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1387 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1389 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1390 ¶ms.station_flags))
1393 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1397 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
1401 if (!drv->ops->add_station) {
1407 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms);
1412 dev_put(params.vlan);
1413 cfg80211_put_dev(drv);
1418 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1420 struct cfg80211_registered_device *drv;
1422 struct net_device *dev;
1423 u8 *mac_addr = NULL;
1425 if (info->attrs[NL80211_ATTR_MAC])
1426 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1428 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1432 if (!drv->ops->del_station) {
1438 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
1442 cfg80211_put_dev(drv);
1447 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1448 int flags, struct net_device *dev,
1449 u8 *dst, u8 *next_hop,
1450 struct mpath_info *pinfo)
1453 struct nlattr *pinfoattr;
1455 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1459 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1460 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1461 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1463 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1465 goto nla_put_failure;
1466 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1467 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1469 if (pinfo->filled & MPATH_INFO_DSN)
1470 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1472 if (pinfo->filled & MPATH_INFO_METRIC)
1473 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1475 if (pinfo->filled & MPATH_INFO_EXPTIME)
1476 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1478 if (pinfo->filled & MPATH_INFO_FLAGS)
1479 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1481 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1482 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1483 pinfo->discovery_timeout);
1484 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1485 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1486 pinfo->discovery_retries);
1488 nla_nest_end(msg, pinfoattr);
1490 return genlmsg_end(msg, hdr);
1493 genlmsg_cancel(msg, hdr);
1497 static int nl80211_dump_mpath(struct sk_buff *skb,
1498 struct netlink_callback *cb)
1500 struct mpath_info pinfo;
1501 struct cfg80211_registered_device *dev;
1502 struct net_device *netdev;
1504 u8 next_hop[ETH_ALEN];
1505 int ifidx = cb->args[0];
1506 int path_idx = cb->args[1];
1510 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1511 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1516 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1519 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1524 netdev = dev_get_by_index(&init_net, ifidx);
1528 dev = cfg80211_get_dev_from_ifindex(ifidx);
1531 goto out_put_netdev;
1534 if (!dev->ops->dump_mpath) {
1542 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
1543 dst, next_hop, &pinfo);
1549 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1550 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1551 netdev, dst, next_hop,
1560 cb->args[1] = path_idx;
1565 cfg80211_put_dev(dev);
1572 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1574 struct cfg80211_registered_device *drv;
1576 struct net_device *dev;
1577 struct mpath_info pinfo;
1578 struct sk_buff *msg;
1580 u8 next_hop[ETH_ALEN];
1582 memset(&pinfo, 0, sizeof(pinfo));
1584 if (!info->attrs[NL80211_ATTR_MAC])
1587 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1589 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1593 if (!drv->ops->get_mpath) {
1599 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
1605 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1609 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
1610 dev, dst, next_hop, &pinfo) < 0)
1613 err = genlmsg_unicast(msg, info->snd_pid);
1620 cfg80211_put_dev(drv);
1625 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
1627 struct cfg80211_registered_device *drv;
1629 struct net_device *dev;
1631 u8 *next_hop = NULL;
1633 if (!info->attrs[NL80211_ATTR_MAC])
1636 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1639 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1640 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1642 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1646 if (!drv->ops->change_mpath) {
1652 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
1656 cfg80211_put_dev(drv);
1660 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
1662 struct cfg80211_registered_device *drv;
1664 struct net_device *dev;
1666 u8 *next_hop = NULL;
1668 if (!info->attrs[NL80211_ATTR_MAC])
1671 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1674 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1675 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1677 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1681 if (!drv->ops->add_mpath) {
1687 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
1691 cfg80211_put_dev(drv);
1696 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
1698 struct cfg80211_registered_device *drv;
1700 struct net_device *dev;
1703 if (info->attrs[NL80211_ATTR_MAC])
1704 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1706 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1710 if (!drv->ops->del_mpath) {
1716 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
1720 cfg80211_put_dev(drv);
1725 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
1727 struct cfg80211_registered_device *drv;
1729 struct net_device *dev;
1730 struct bss_parameters params;
1732 memset(¶ms, 0, sizeof(params));
1733 /* default to not changing parameters */
1734 params.use_cts_prot = -1;
1735 params.use_short_preamble = -1;
1736 params.use_short_slot_time = -1;
1738 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
1739 params.use_cts_prot =
1740 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
1741 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
1742 params.use_short_preamble =
1743 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
1744 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
1745 params.use_short_slot_time =
1746 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
1747 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
1748 params.basic_rates =
1749 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
1750 params.basic_rates_len =
1751 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
1754 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1758 if (!drv->ops->change_bss) {
1764 err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms);
1768 cfg80211_put_dev(drv);
1773 static const struct nla_policy
1774 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
1775 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1776 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1777 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1778 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1779 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1780 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1783 static int parse_reg_rule(struct nlattr *tb[],
1784 struct ieee80211_reg_rule *reg_rule)
1786 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
1787 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
1789 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
1791 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
1793 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
1795 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1797 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1800 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
1802 freq_range->start_freq_khz =
1803 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
1804 freq_range->end_freq_khz =
1805 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
1806 freq_range->max_bandwidth_khz =
1807 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
1809 power_rule->max_eirp =
1810 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
1812 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
1813 power_rule->max_antenna_gain =
1814 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
1819 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
1824 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1827 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1829 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
1830 /* We ignore world regdom requests with the old regdom setup */
1831 if (is_world_regdom(data))
1834 mutex_lock(&cfg80211_drv_mutex);
1835 r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, 0, ENVIRON_ANY);
1836 mutex_unlock(&cfg80211_drv_mutex);
1840 static int nl80211_get_mesh_params(struct sk_buff *skb,
1841 struct genl_info *info)
1843 struct cfg80211_registered_device *drv;
1844 struct mesh_config cur_params;
1846 struct net_device *dev;
1848 struct nlattr *pinfoattr;
1849 struct sk_buff *msg;
1851 /* Look up our device */
1852 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1856 /* Get the mesh params */
1858 err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
1863 /* Draw up a netlink message to send back */
1864 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1869 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1870 NL80211_CMD_GET_MESH_PARAMS);
1872 goto nla_put_failure;
1873 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
1875 goto nla_put_failure;
1876 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1877 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
1878 cur_params.dot11MeshRetryTimeout);
1879 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
1880 cur_params.dot11MeshConfirmTimeout);
1881 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
1882 cur_params.dot11MeshHoldingTimeout);
1883 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
1884 cur_params.dot11MeshMaxPeerLinks);
1885 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
1886 cur_params.dot11MeshMaxRetries);
1887 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
1888 cur_params.dot11MeshTTL);
1889 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
1890 cur_params.auto_open_plinks);
1891 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
1892 cur_params.dot11MeshHWMPmaxPREQretries);
1893 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
1894 cur_params.path_refresh_time);
1895 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
1896 cur_params.min_discovery_timeout);
1897 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
1898 cur_params.dot11MeshHWMPactivePathTimeout);
1899 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
1900 cur_params.dot11MeshHWMPpreqMinInterval);
1901 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1902 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
1903 nla_nest_end(msg, pinfoattr);
1904 genlmsg_end(msg, hdr);
1905 err = genlmsg_unicast(msg, info->snd_pid);
1909 genlmsg_cancel(msg, hdr);
1913 cfg80211_put_dev(drv);
1918 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
1920 if (table[attr_num]) {\
1921 cfg.param = nla_fn(table[attr_num]); \
1922 mask |= (1 << (attr_num - 1)); \
1926 static struct nla_policy
1927 nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
1928 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
1929 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
1930 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
1931 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
1932 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
1933 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
1934 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
1936 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
1937 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
1938 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
1939 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
1940 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
1941 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
1944 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
1948 struct cfg80211_registered_device *drv;
1949 struct net_device *dev;
1950 struct mesh_config cfg;
1951 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
1952 struct nlattr *parent_attr;
1954 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
1957 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
1958 parent_attr, nl80211_meshconf_params_policy))
1961 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1965 /* This makes sure that there aren't more than 32 mesh config
1966 * parameters (otherwise our bitfield scheme would not work.) */
1967 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
1969 /* Fill in the params struct */
1971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
1972 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
1973 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
1974 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
1975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
1976 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
1977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
1978 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
1979 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
1980 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
1981 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
1982 mask, NL80211_MESHCONF_TTL, nla_get_u8);
1983 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
1984 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
1985 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
1986 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
1988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
1989 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
1990 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
1991 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
1993 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
1994 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
1996 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
1997 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
1999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2000 dot11MeshHWMPnetDiameterTraversalTime,
2001 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2006 err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
2010 cfg80211_put_dev(drv);
2015 #undef FILL_IN_MESH_PARAM_IF_SET
2017 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2019 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2020 struct nlattr *nl_reg_rule;
2021 char *alpha2 = NULL;
2022 int rem_reg_rules = 0, r = 0;
2023 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2024 struct ieee80211_regdomain *rd = NULL;
2026 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2029 if (!info->attrs[NL80211_ATTR_REG_RULES])
2032 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2034 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2037 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2041 if (!reg_is_valid_request(alpha2))
2044 size_of_regd = sizeof(struct ieee80211_regdomain) +
2045 (num_rules * sizeof(struct ieee80211_reg_rule));
2047 rd = kzalloc(size_of_regd, GFP_KERNEL);
2051 rd->n_reg_rules = num_rules;
2052 rd->alpha2[0] = alpha2[0];
2053 rd->alpha2[1] = alpha2[1];
2055 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2057 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2058 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2060 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2066 if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
2070 BUG_ON(rule_idx != num_rules);
2072 mutex_lock(&cfg80211_drv_mutex);
2074 mutex_unlock(&cfg80211_drv_mutex);
2082 static struct genl_ops nl80211_ops[] = {
2084 .cmd = NL80211_CMD_GET_WIPHY,
2085 .doit = nl80211_get_wiphy,
2086 .dumpit = nl80211_dump_wiphy,
2087 .policy = nl80211_policy,
2088 /* can be retrieved by unprivileged users */
2091 .cmd = NL80211_CMD_SET_WIPHY,
2092 .doit = nl80211_set_wiphy,
2093 .policy = nl80211_policy,
2094 .flags = GENL_ADMIN_PERM,
2097 .cmd = NL80211_CMD_GET_INTERFACE,
2098 .doit = nl80211_get_interface,
2099 .dumpit = nl80211_dump_interface,
2100 .policy = nl80211_policy,
2101 /* can be retrieved by unprivileged users */
2104 .cmd = NL80211_CMD_SET_INTERFACE,
2105 .doit = nl80211_set_interface,
2106 .policy = nl80211_policy,
2107 .flags = GENL_ADMIN_PERM,
2110 .cmd = NL80211_CMD_NEW_INTERFACE,
2111 .doit = nl80211_new_interface,
2112 .policy = nl80211_policy,
2113 .flags = GENL_ADMIN_PERM,
2116 .cmd = NL80211_CMD_DEL_INTERFACE,
2117 .doit = nl80211_del_interface,
2118 .policy = nl80211_policy,
2119 .flags = GENL_ADMIN_PERM,
2122 .cmd = NL80211_CMD_GET_KEY,
2123 .doit = nl80211_get_key,
2124 .policy = nl80211_policy,
2125 .flags = GENL_ADMIN_PERM,
2128 .cmd = NL80211_CMD_SET_KEY,
2129 .doit = nl80211_set_key,
2130 .policy = nl80211_policy,
2131 .flags = GENL_ADMIN_PERM,
2134 .cmd = NL80211_CMD_NEW_KEY,
2135 .doit = nl80211_new_key,
2136 .policy = nl80211_policy,
2137 .flags = GENL_ADMIN_PERM,
2140 .cmd = NL80211_CMD_DEL_KEY,
2141 .doit = nl80211_del_key,
2142 .policy = nl80211_policy,
2143 .flags = GENL_ADMIN_PERM,
2146 .cmd = NL80211_CMD_SET_BEACON,
2147 .policy = nl80211_policy,
2148 .flags = GENL_ADMIN_PERM,
2149 .doit = nl80211_addset_beacon,
2152 .cmd = NL80211_CMD_NEW_BEACON,
2153 .policy = nl80211_policy,
2154 .flags = GENL_ADMIN_PERM,
2155 .doit = nl80211_addset_beacon,
2158 .cmd = NL80211_CMD_DEL_BEACON,
2159 .policy = nl80211_policy,
2160 .flags = GENL_ADMIN_PERM,
2161 .doit = nl80211_del_beacon,
2164 .cmd = NL80211_CMD_GET_STATION,
2165 .doit = nl80211_get_station,
2166 .dumpit = nl80211_dump_station,
2167 .policy = nl80211_policy,
2168 .flags = GENL_ADMIN_PERM,
2171 .cmd = NL80211_CMD_SET_STATION,
2172 .doit = nl80211_set_station,
2173 .policy = nl80211_policy,
2174 .flags = GENL_ADMIN_PERM,
2177 .cmd = NL80211_CMD_NEW_STATION,
2178 .doit = nl80211_new_station,
2179 .policy = nl80211_policy,
2180 .flags = GENL_ADMIN_PERM,
2183 .cmd = NL80211_CMD_DEL_STATION,
2184 .doit = nl80211_del_station,
2185 .policy = nl80211_policy,
2186 .flags = GENL_ADMIN_PERM,
2189 .cmd = NL80211_CMD_GET_MPATH,
2190 .doit = nl80211_get_mpath,
2191 .dumpit = nl80211_dump_mpath,
2192 .policy = nl80211_policy,
2193 .flags = GENL_ADMIN_PERM,
2196 .cmd = NL80211_CMD_SET_MPATH,
2197 .doit = nl80211_set_mpath,
2198 .policy = nl80211_policy,
2199 .flags = GENL_ADMIN_PERM,
2202 .cmd = NL80211_CMD_NEW_MPATH,
2203 .doit = nl80211_new_mpath,
2204 .policy = nl80211_policy,
2205 .flags = GENL_ADMIN_PERM,
2208 .cmd = NL80211_CMD_DEL_MPATH,
2209 .doit = nl80211_del_mpath,
2210 .policy = nl80211_policy,
2211 .flags = GENL_ADMIN_PERM,
2214 .cmd = NL80211_CMD_SET_BSS,
2215 .doit = nl80211_set_bss,
2216 .policy = nl80211_policy,
2217 .flags = GENL_ADMIN_PERM,
2220 .cmd = NL80211_CMD_SET_REG,
2221 .doit = nl80211_set_reg,
2222 .policy = nl80211_policy,
2223 .flags = GENL_ADMIN_PERM,
2226 .cmd = NL80211_CMD_REQ_SET_REG,
2227 .doit = nl80211_req_set_reg,
2228 .policy = nl80211_policy,
2229 .flags = GENL_ADMIN_PERM,
2232 .cmd = NL80211_CMD_GET_MESH_PARAMS,
2233 .doit = nl80211_get_mesh_params,
2234 .policy = nl80211_policy,
2235 /* can be retrieved by unprivileged users */
2238 .cmd = NL80211_CMD_SET_MESH_PARAMS,
2239 .doit = nl80211_set_mesh_params,
2240 .policy = nl80211_policy,
2241 .flags = GENL_ADMIN_PERM,
2245 /* multicast groups */
2246 static struct genl_multicast_group nl80211_config_mcgrp = {
2250 /* notification functions */
2252 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
2254 struct sk_buff *msg;
2256 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
2260 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
2265 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
2268 /* initialisation/exit functions */
2270 int nl80211_init(void)
2274 err = genl_register_family(&nl80211_fam);
2278 for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
2279 err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
2284 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
2290 genl_unregister_family(&nl80211_fam);
2294 void nl80211_exit(void)
2296 genl_unregister_family(&nl80211_fam);