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 },
62 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
63 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
64 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
66 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
68 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
69 .len = WLAN_MAX_KEY_LEN },
70 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
71 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
72 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
74 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
75 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
76 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
77 .len = IEEE80211_MAX_DATA_LEN },
78 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
79 .len = IEEE80211_MAX_DATA_LEN },
80 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
81 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
82 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
83 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
84 .len = NL80211_MAX_SUPP_RATES },
85 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
86 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
87 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
88 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
89 .len = IEEE80211_MAX_MESH_ID_LEN },
90 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
92 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
93 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
95 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
96 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
97 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
99 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
101 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
102 .len = NL80211_HT_CAPABILITY_LEN },
105 /* message building helper */
106 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
109 /* since there is no private header just add the generic one */
110 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
113 /* netlink command implementations */
115 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
116 struct cfg80211_registered_device *dev)
119 struct nlattr *nl_bands, *nl_band;
120 struct nlattr *nl_freqs, *nl_freq;
121 struct nlattr *nl_rates, *nl_rate;
122 struct nlattr *nl_modes;
123 enum ieee80211_band band;
124 struct ieee80211_channel *chan;
125 struct ieee80211_rate *rate;
127 u16 ifmodes = dev->wiphy.interface_modes;
129 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
133 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
134 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
136 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
138 goto nla_put_failure;
143 NLA_PUT_FLAG(msg, i);
148 nla_nest_end(msg, nl_modes);
150 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
152 goto nla_put_failure;
154 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
155 if (!dev->wiphy.bands[band])
158 nl_band = nla_nest_start(msg, band);
160 goto nla_put_failure;
163 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
164 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
165 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
166 &dev->wiphy.bands[band]->ht_cap.mcs);
167 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
168 dev->wiphy.bands[band]->ht_cap.cap);
169 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
170 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
171 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
172 dev->wiphy.bands[band]->ht_cap.ampdu_density);
175 /* add frequencies */
176 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
178 goto nla_put_failure;
180 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
181 nl_freq = nla_nest_start(msg, i);
183 goto nla_put_failure;
185 chan = &dev->wiphy.bands[band]->channels[i];
186 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
189 if (chan->flags & IEEE80211_CHAN_DISABLED)
190 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
191 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
192 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
193 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
194 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
195 if (chan->flags & IEEE80211_CHAN_RADAR)
196 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
198 nla_nest_end(msg, nl_freq);
201 nla_nest_end(msg, nl_freqs);
204 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
206 goto nla_put_failure;
208 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
209 nl_rate = nla_nest_start(msg, i);
211 goto nla_put_failure;
213 rate = &dev->wiphy.bands[band]->bitrates[i];
214 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
216 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
218 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
220 nla_nest_end(msg, nl_rate);
223 nla_nest_end(msg, nl_rates);
225 nla_nest_end(msg, nl_band);
227 nla_nest_end(msg, nl_bands);
229 return genlmsg_end(msg, hdr);
232 genlmsg_cancel(msg, hdr);
236 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
239 int start = cb->args[0];
240 struct cfg80211_registered_device *dev;
242 mutex_lock(&cfg80211_drv_mutex);
243 list_for_each_entry(dev, &cfg80211_drv_list, list) {
246 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
247 cb->nlh->nlmsg_seq, NLM_F_MULTI,
253 mutex_unlock(&cfg80211_drv_mutex);
260 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
263 struct cfg80211_registered_device *dev;
265 dev = cfg80211_get_dev_from_info(info);
269 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
273 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
276 cfg80211_put_dev(dev);
278 return genlmsg_unicast(msg, info->snd_pid);
283 cfg80211_put_dev(dev);
287 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
289 struct cfg80211_registered_device *rdev;
292 if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
295 rdev = cfg80211_get_dev_from_info(info);
297 return PTR_ERR(rdev);
299 result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
301 cfg80211_put_dev(rdev);
306 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
307 struct net_device *dev)
311 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
315 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
316 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
317 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
318 return genlmsg_end(msg, hdr);
321 genlmsg_cancel(msg, hdr);
325 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
329 int wp_start = cb->args[0];
330 int if_start = cb->args[1];
331 struct cfg80211_registered_device *dev;
332 struct wireless_dev *wdev;
334 mutex_lock(&cfg80211_drv_mutex);
335 list_for_each_entry(dev, &cfg80211_drv_list, list) {
336 if (wp_idx < wp_start) {
342 mutex_lock(&dev->devlist_mtx);
343 list_for_each_entry(wdev, &dev->netdev_list, list) {
344 if (if_idx < if_start) {
348 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
349 cb->nlh->nlmsg_seq, NLM_F_MULTI,
351 mutex_unlock(&dev->devlist_mtx);
356 mutex_unlock(&dev->devlist_mtx);
361 mutex_unlock(&cfg80211_drv_mutex);
363 cb->args[0] = wp_idx;
364 cb->args[1] = if_idx;
369 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
372 struct cfg80211_registered_device *dev;
373 struct net_device *netdev;
376 err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev);
380 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
384 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
388 cfg80211_put_dev(dev);
390 return genlmsg_unicast(msg, info->snd_pid);
396 cfg80211_put_dev(dev);
400 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
401 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
402 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
403 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
404 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
405 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
408 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
410 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
418 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
419 nla, mntr_flags_policy))
422 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
424 *mntrflags |= (1<<flag);
429 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
431 struct cfg80211_registered_device *drv;
432 struct vif_params params;
434 enum nl80211_iftype type;
435 struct net_device *dev;
436 u32 _flags, *flags = NULL;
438 memset(¶ms, 0, sizeof(params));
440 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
443 ifindex = dev->ifindex;
444 type = dev->ieee80211_ptr->iftype;
448 if (info->attrs[NL80211_ATTR_IFTYPE]) {
449 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
450 if (type > NL80211_IFTYPE_MAX)
454 if (!drv->ops->change_virtual_intf ||
455 !(drv->wiphy.interface_modes & (1 << type))) {
460 if (info->attrs[NL80211_ATTR_MESH_ID]) {
461 if (type != NL80211_IFTYPE_MESH_POINT) {
465 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
466 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
469 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
470 if (type != NL80211_IFTYPE_MONITOR) {
474 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
480 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
481 type, flags, ¶ms);
483 dev = __dev_get_by_index(&init_net, ifindex);
484 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
489 cfg80211_put_dev(drv);
493 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
495 struct cfg80211_registered_device *drv;
496 struct vif_params params;
498 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
501 memset(¶ms, 0, sizeof(params));
503 if (!info->attrs[NL80211_ATTR_IFNAME])
506 if (info->attrs[NL80211_ATTR_IFTYPE]) {
507 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
508 if (type > NL80211_IFTYPE_MAX)
512 drv = cfg80211_get_dev_from_info(info);
516 if (!drv->ops->add_virtual_intf ||
517 !(drv->wiphy.interface_modes & (1 << type))) {
522 if (type == NL80211_IFTYPE_MESH_POINT &&
523 info->attrs[NL80211_ATTR_MESH_ID]) {
524 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
525 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
529 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
530 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
532 err = drv->ops->add_virtual_intf(&drv->wiphy,
533 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
534 type, err ? NULL : &flags, ¶ms);
539 cfg80211_put_dev(drv);
543 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
545 struct cfg80211_registered_device *drv;
547 struct net_device *dev;
549 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
552 ifindex = dev->ifindex;
555 if (!drv->ops->del_virtual_intf) {
561 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
565 cfg80211_put_dev(drv);
569 struct get_key_cookie {
574 static void get_key_callback(void *c, struct key_params *params)
576 struct get_key_cookie *cookie = c;
579 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
580 params->key_len, params->key);
583 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
584 params->seq_len, params->seq);
587 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
595 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
597 struct cfg80211_registered_device *drv;
599 struct net_device *dev;
602 struct get_key_cookie cookie = {
608 if (info->attrs[NL80211_ATTR_KEY_IDX])
609 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
614 if (info->attrs[NL80211_ATTR_MAC])
615 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
617 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
621 if (!drv->ops->get_key) {
626 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
632 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
633 NL80211_CMD_NEW_KEY);
642 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
643 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
645 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
648 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
649 &cookie, get_key_callback);
656 goto nla_put_failure;
658 genlmsg_end(msg, hdr);
659 err = genlmsg_unicast(msg, info->snd_pid);
666 cfg80211_put_dev(drv);
671 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
673 struct cfg80211_registered_device *drv;
675 struct net_device *dev;
678 if (!info->attrs[NL80211_ATTR_KEY_IDX])
681 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
686 /* currently only support setting default key */
687 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
690 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
694 if (!drv->ops->set_default_key) {
700 err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
704 cfg80211_put_dev(drv);
709 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
711 struct cfg80211_registered_device *drv;
713 struct net_device *dev;
714 struct key_params params;
718 memset(¶ms, 0, sizeof(params));
720 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
723 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
724 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
725 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
728 if (info->attrs[NL80211_ATTR_KEY_IDX])
729 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
731 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
733 if (info->attrs[NL80211_ATTR_MAC])
734 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
740 * Disallow pairwise keys with non-zero index unless it's WEP
741 * (because current deployments use pairwise WEP keys with
742 * non-zero indizes but 802.11i clearly specifies to use zero)
744 if (mac_addr && key_idx &&
745 params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
746 params.cipher != WLAN_CIPHER_SUITE_WEP104)
749 /* TODO: add definitions for the lengths to linux/ieee80211.h */
750 switch (params.cipher) {
751 case WLAN_CIPHER_SUITE_WEP40:
752 if (params.key_len != 5)
755 case WLAN_CIPHER_SUITE_TKIP:
756 if (params.key_len != 32)
759 case WLAN_CIPHER_SUITE_CCMP:
760 if (params.key_len != 16)
763 case WLAN_CIPHER_SUITE_WEP104:
764 if (params.key_len != 13)
771 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
775 if (!drv->ops->add_key) {
781 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms);
785 cfg80211_put_dev(drv);
790 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
792 struct cfg80211_registered_device *drv;
794 struct net_device *dev;
798 if (info->attrs[NL80211_ATTR_KEY_IDX])
799 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
804 if (info->attrs[NL80211_ATTR_MAC])
805 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
807 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
811 if (!drv->ops->del_key) {
817 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
821 cfg80211_put_dev(drv);
826 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
828 int (*call)(struct wiphy *wiphy, struct net_device *dev,
829 struct beacon_parameters *info);
830 struct cfg80211_registered_device *drv;
832 struct net_device *dev;
833 struct beacon_parameters params;
836 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
840 switch (info->genlhdr->cmd) {
841 case NL80211_CMD_NEW_BEACON:
842 /* these are required for NEW_BEACON */
843 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
844 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
845 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
850 call = drv->ops->add_beacon;
852 case NL80211_CMD_SET_BEACON:
853 call = drv->ops->set_beacon;
866 memset(¶ms, 0, sizeof(params));
868 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
870 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
874 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
876 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
880 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
881 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
883 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
887 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
888 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
890 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
900 err = call(&drv->wiphy, dev, ¶ms);
904 cfg80211_put_dev(drv);
909 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
911 struct cfg80211_registered_device *drv;
913 struct net_device *dev;
915 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
919 if (!drv->ops->del_beacon) {
925 err = drv->ops->del_beacon(&drv->wiphy, dev);
929 cfg80211_put_dev(drv);
934 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
935 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
936 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
937 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
940 static int parse_station_flags(struct nlattr *nla, u32 *staflags)
942 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
950 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
951 nla, sta_flags_policy))
954 *staflags = STATION_FLAG_CHANGED;
956 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
958 *staflags |= (1<<flag);
963 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
964 int flags, struct net_device *dev,
965 u8 *mac_addr, struct station_info *sinfo)
968 struct nlattr *sinfoattr;
970 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
974 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
975 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
977 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
979 goto nla_put_failure;
980 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
981 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
982 sinfo->inactive_time);
983 if (sinfo->filled & STATION_INFO_RX_BYTES)
984 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
986 if (sinfo->filled & STATION_INFO_TX_BYTES)
987 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
989 if (sinfo->filled & STATION_INFO_LLID)
990 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
992 if (sinfo->filled & STATION_INFO_PLID)
993 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
995 if (sinfo->filled & STATION_INFO_PLINK_STATE)
996 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
999 nla_nest_end(msg, sinfoattr);
1001 return genlmsg_end(msg, hdr);
1004 genlmsg_cancel(msg, hdr);
1008 static int nl80211_dump_station(struct sk_buff *skb,
1009 struct netlink_callback *cb)
1011 struct station_info sinfo;
1012 struct cfg80211_registered_device *dev;
1013 struct net_device *netdev;
1014 u8 mac_addr[ETH_ALEN];
1015 int ifidx = cb->args[0];
1016 int sta_idx = cb->args[1];
1020 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1021 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1026 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1029 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1034 netdev = dev_get_by_index(&init_net, ifidx);
1038 dev = cfg80211_get_dev_from_ifindex(ifidx);
1041 goto out_put_netdev;
1044 if (!dev->ops->dump_station) {
1052 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1059 if (nl80211_send_station(skb,
1060 NETLINK_CB(cb->skb).pid,
1061 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1071 cb->args[1] = sta_idx;
1076 cfg80211_put_dev(dev);
1083 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1085 struct cfg80211_registered_device *drv;
1087 struct net_device *dev;
1088 struct station_info sinfo;
1089 struct sk_buff *msg;
1090 u8 *mac_addr = NULL;
1092 memset(&sinfo, 0, sizeof(sinfo));
1094 if (!info->attrs[NL80211_ATTR_MAC])
1097 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1099 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1103 if (!drv->ops->get_station) {
1109 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
1115 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1119 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1120 dev, mac_addr, &sinfo) < 0)
1123 err = genlmsg_unicast(msg, info->snd_pid);
1130 cfg80211_put_dev(drv);
1136 * Get vlan interface making sure it is on the right wiphy.
1138 static int get_vlan(struct nlattr *vlanattr,
1139 struct cfg80211_registered_device *rdev,
1140 struct net_device **vlan)
1145 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1148 if (!(*vlan)->ieee80211_ptr)
1150 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1156 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1158 struct cfg80211_registered_device *drv;
1160 struct net_device *dev;
1161 struct station_parameters params;
1162 u8 *mac_addr = NULL;
1164 memset(¶ms, 0, sizeof(params));
1166 params.listen_interval = -1;
1168 if (info->attrs[NL80211_ATTR_STA_AID])
1171 if (!info->attrs[NL80211_ATTR_MAC])
1174 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1176 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1177 params.supported_rates =
1178 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1179 params.supported_rates_len =
1180 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1183 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1184 params.listen_interval =
1185 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1187 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1189 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1191 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1192 ¶ms.station_flags))
1195 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1196 params.plink_action =
1197 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1199 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1203 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
1207 if (!drv->ops->change_station) {
1213 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms);
1218 dev_put(params.vlan);
1219 cfg80211_put_dev(drv);
1224 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1226 struct cfg80211_registered_device *drv;
1228 struct net_device *dev;
1229 struct station_parameters params;
1230 u8 *mac_addr = NULL;
1232 memset(¶ms, 0, sizeof(params));
1234 if (!info->attrs[NL80211_ATTR_MAC])
1237 if (!info->attrs[NL80211_ATTR_STA_AID])
1240 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1243 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1246 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1247 params.supported_rates =
1248 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1249 params.supported_rates_len =
1250 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1251 params.listen_interval =
1252 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1253 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
1254 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1256 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1258 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1259 ¶ms.station_flags))
1262 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1266 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
1270 if (!drv->ops->add_station) {
1276 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms);
1281 dev_put(params.vlan);
1282 cfg80211_put_dev(drv);
1287 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1289 struct cfg80211_registered_device *drv;
1291 struct net_device *dev;
1292 u8 *mac_addr = NULL;
1294 if (info->attrs[NL80211_ATTR_MAC])
1295 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1297 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1301 if (!drv->ops->del_station) {
1307 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
1311 cfg80211_put_dev(drv);
1316 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1317 int flags, struct net_device *dev,
1318 u8 *dst, u8 *next_hop,
1319 struct mpath_info *pinfo)
1322 struct nlattr *pinfoattr;
1324 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1328 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1329 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1330 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1332 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1334 goto nla_put_failure;
1335 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1336 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1338 if (pinfo->filled & MPATH_INFO_DSN)
1339 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1341 if (pinfo->filled & MPATH_INFO_METRIC)
1342 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1344 if (pinfo->filled & MPATH_INFO_EXPTIME)
1345 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1347 if (pinfo->filled & MPATH_INFO_FLAGS)
1348 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1350 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1351 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1352 pinfo->discovery_timeout);
1353 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1354 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1355 pinfo->discovery_retries);
1357 nla_nest_end(msg, pinfoattr);
1359 return genlmsg_end(msg, hdr);
1362 genlmsg_cancel(msg, hdr);
1366 static int nl80211_dump_mpath(struct sk_buff *skb,
1367 struct netlink_callback *cb)
1369 struct mpath_info pinfo;
1370 struct cfg80211_registered_device *dev;
1371 struct net_device *netdev;
1373 u8 next_hop[ETH_ALEN];
1374 int ifidx = cb->args[0];
1375 int path_idx = cb->args[1];
1379 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1380 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1385 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1388 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1393 netdev = dev_get_by_index(&init_net, ifidx);
1397 dev = cfg80211_get_dev_from_ifindex(ifidx);
1400 goto out_put_netdev;
1403 if (!dev->ops->dump_mpath) {
1411 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
1412 dst, next_hop, &pinfo);
1418 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1419 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1420 netdev, dst, next_hop,
1429 cb->args[1] = path_idx;
1434 cfg80211_put_dev(dev);
1441 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1443 struct cfg80211_registered_device *drv;
1445 struct net_device *dev;
1446 struct mpath_info pinfo;
1447 struct sk_buff *msg;
1449 u8 next_hop[ETH_ALEN];
1451 memset(&pinfo, 0, sizeof(pinfo));
1453 if (!info->attrs[NL80211_ATTR_MAC])
1456 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1458 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1462 if (!drv->ops->get_mpath) {
1468 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
1474 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1478 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
1479 dev, dst, next_hop, &pinfo) < 0)
1482 err = genlmsg_unicast(msg, info->snd_pid);
1489 cfg80211_put_dev(drv);
1494 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
1496 struct cfg80211_registered_device *drv;
1498 struct net_device *dev;
1500 u8 *next_hop = NULL;
1502 if (!info->attrs[NL80211_ATTR_MAC])
1505 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1508 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1509 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1511 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1515 if (!drv->ops->change_mpath) {
1521 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
1525 cfg80211_put_dev(drv);
1529 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
1531 struct cfg80211_registered_device *drv;
1533 struct net_device *dev;
1535 u8 *next_hop = NULL;
1537 if (!info->attrs[NL80211_ATTR_MAC])
1540 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1543 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1544 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1546 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1550 if (!drv->ops->add_mpath) {
1556 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
1560 cfg80211_put_dev(drv);
1565 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
1567 struct cfg80211_registered_device *drv;
1569 struct net_device *dev;
1572 if (info->attrs[NL80211_ATTR_MAC])
1573 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1575 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1579 if (!drv->ops->del_mpath) {
1585 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
1589 cfg80211_put_dev(drv);
1594 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
1596 struct cfg80211_registered_device *drv;
1598 struct net_device *dev;
1599 struct bss_parameters params;
1601 memset(¶ms, 0, sizeof(params));
1602 /* default to not changing parameters */
1603 params.use_cts_prot = -1;
1604 params.use_short_preamble = -1;
1605 params.use_short_slot_time = -1;
1607 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
1608 params.use_cts_prot =
1609 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
1610 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
1611 params.use_short_preamble =
1612 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
1613 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
1614 params.use_short_slot_time =
1615 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
1617 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1621 if (!drv->ops->change_bss) {
1627 err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms);
1631 cfg80211_put_dev(drv);
1636 static const struct nla_policy
1637 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
1638 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1639 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1640 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1641 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1642 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1643 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1646 static int parse_reg_rule(struct nlattr *tb[],
1647 struct ieee80211_reg_rule *reg_rule)
1649 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
1650 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
1652 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
1654 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
1656 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
1658 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1660 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1663 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
1665 freq_range->start_freq_khz =
1666 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
1667 freq_range->end_freq_khz =
1668 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
1669 freq_range->max_bandwidth_khz =
1670 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
1672 power_rule->max_eirp =
1673 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
1675 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
1676 power_rule->max_antenna_gain =
1677 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
1682 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
1687 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1690 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1692 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
1693 /* We ignore world regdom requests with the old regdom setup */
1694 if (is_world_regdom(data))
1697 mutex_lock(&cfg80211_drv_mutex);
1698 r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data);
1699 mutex_unlock(&cfg80211_drv_mutex);
1703 static int nl80211_get_mesh_params(struct sk_buff *skb,
1704 struct genl_info *info)
1706 struct cfg80211_registered_device *drv;
1707 struct mesh_config cur_params;
1709 struct net_device *dev;
1711 struct nlattr *pinfoattr;
1712 struct sk_buff *msg;
1714 /* Look up our device */
1715 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1719 /* Get the mesh params */
1721 err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
1726 /* Draw up a netlink message to send back */
1727 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1732 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1733 NL80211_CMD_GET_MESH_PARAMS);
1735 goto nla_put_failure;
1736 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
1738 goto nla_put_failure;
1739 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1740 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
1741 cur_params.dot11MeshRetryTimeout);
1742 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
1743 cur_params.dot11MeshConfirmTimeout);
1744 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
1745 cur_params.dot11MeshHoldingTimeout);
1746 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
1747 cur_params.dot11MeshMaxPeerLinks);
1748 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
1749 cur_params.dot11MeshMaxRetries);
1750 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
1751 cur_params.dot11MeshTTL);
1752 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
1753 cur_params.auto_open_plinks);
1754 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
1755 cur_params.dot11MeshHWMPmaxPREQretries);
1756 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
1757 cur_params.path_refresh_time);
1758 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
1759 cur_params.min_discovery_timeout);
1760 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
1761 cur_params.dot11MeshHWMPactivePathTimeout);
1762 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
1763 cur_params.dot11MeshHWMPpreqMinInterval);
1764 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1765 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
1766 nla_nest_end(msg, pinfoattr);
1767 genlmsg_end(msg, hdr);
1768 err = genlmsg_unicast(msg, info->snd_pid);
1772 genlmsg_cancel(msg, hdr);
1776 cfg80211_put_dev(drv);
1781 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
1783 if (table[attr_num]) {\
1784 cfg.param = nla_fn(table[attr_num]); \
1785 mask |= (1 << (attr_num - 1)); \
1789 static struct nla_policy
1790 nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
1791 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
1792 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
1793 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
1794 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
1795 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
1796 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
1797 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
1799 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
1800 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
1801 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
1802 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
1803 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
1804 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
1807 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
1811 struct cfg80211_registered_device *drv;
1812 struct net_device *dev;
1813 struct mesh_config cfg;
1814 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
1815 struct nlattr *parent_attr;
1817 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
1820 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
1821 parent_attr, nl80211_meshconf_params_policy))
1824 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1828 /* This makes sure that there aren't more than 32 mesh config
1829 * parameters (otherwise our bitfield scheme would not work.) */
1830 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
1832 /* Fill in the params struct */
1834 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
1835 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
1836 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
1837 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
1838 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
1839 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
1840 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
1841 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
1842 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
1843 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
1844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
1845 mask, NL80211_MESHCONF_TTL, nla_get_u8);
1846 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
1847 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
1848 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
1849 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
1851 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
1852 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
1853 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
1854 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
1856 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
1857 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
1859 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
1860 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
1862 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
1863 dot11MeshHWMPnetDiameterTraversalTime,
1864 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1869 err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
1873 cfg80211_put_dev(drv);
1878 #undef FILL_IN_MESH_PARAM_IF_SET
1880 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
1882 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
1883 struct nlattr *nl_reg_rule;
1884 char *alpha2 = NULL;
1885 int rem_reg_rules = 0, r = 0;
1886 u32 num_rules = 0, rule_idx = 0, size_of_regd;
1887 struct ieee80211_regdomain *rd = NULL;
1889 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1892 if (!info->attrs[NL80211_ATTR_REG_RULES])
1895 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1897 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1900 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
1904 if (!reg_is_valid_request(alpha2))
1907 size_of_regd = sizeof(struct ieee80211_regdomain) +
1908 (num_rules * sizeof(struct ieee80211_reg_rule));
1910 rd = kzalloc(size_of_regd, GFP_KERNEL);
1914 rd->n_reg_rules = num_rules;
1915 rd->alpha2[0] = alpha2[0];
1916 rd->alpha2[1] = alpha2[1];
1918 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1920 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1921 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
1923 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
1929 if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
1933 BUG_ON(rule_idx != num_rules);
1935 mutex_lock(&cfg80211_drv_mutex);
1937 mutex_unlock(&cfg80211_drv_mutex);
1945 static struct genl_ops nl80211_ops[] = {
1947 .cmd = NL80211_CMD_GET_WIPHY,
1948 .doit = nl80211_get_wiphy,
1949 .dumpit = nl80211_dump_wiphy,
1950 .policy = nl80211_policy,
1951 /* can be retrieved by unprivileged users */
1954 .cmd = NL80211_CMD_SET_WIPHY,
1955 .doit = nl80211_set_wiphy,
1956 .policy = nl80211_policy,
1957 .flags = GENL_ADMIN_PERM,
1960 .cmd = NL80211_CMD_GET_INTERFACE,
1961 .doit = nl80211_get_interface,
1962 .dumpit = nl80211_dump_interface,
1963 .policy = nl80211_policy,
1964 /* can be retrieved by unprivileged users */
1967 .cmd = NL80211_CMD_SET_INTERFACE,
1968 .doit = nl80211_set_interface,
1969 .policy = nl80211_policy,
1970 .flags = GENL_ADMIN_PERM,
1973 .cmd = NL80211_CMD_NEW_INTERFACE,
1974 .doit = nl80211_new_interface,
1975 .policy = nl80211_policy,
1976 .flags = GENL_ADMIN_PERM,
1979 .cmd = NL80211_CMD_DEL_INTERFACE,
1980 .doit = nl80211_del_interface,
1981 .policy = nl80211_policy,
1982 .flags = GENL_ADMIN_PERM,
1985 .cmd = NL80211_CMD_GET_KEY,
1986 .doit = nl80211_get_key,
1987 .policy = nl80211_policy,
1988 .flags = GENL_ADMIN_PERM,
1991 .cmd = NL80211_CMD_SET_KEY,
1992 .doit = nl80211_set_key,
1993 .policy = nl80211_policy,
1994 .flags = GENL_ADMIN_PERM,
1997 .cmd = NL80211_CMD_NEW_KEY,
1998 .doit = nl80211_new_key,
1999 .policy = nl80211_policy,
2000 .flags = GENL_ADMIN_PERM,
2003 .cmd = NL80211_CMD_DEL_KEY,
2004 .doit = nl80211_del_key,
2005 .policy = nl80211_policy,
2006 .flags = GENL_ADMIN_PERM,
2009 .cmd = NL80211_CMD_SET_BEACON,
2010 .policy = nl80211_policy,
2011 .flags = GENL_ADMIN_PERM,
2012 .doit = nl80211_addset_beacon,
2015 .cmd = NL80211_CMD_NEW_BEACON,
2016 .policy = nl80211_policy,
2017 .flags = GENL_ADMIN_PERM,
2018 .doit = nl80211_addset_beacon,
2021 .cmd = NL80211_CMD_DEL_BEACON,
2022 .policy = nl80211_policy,
2023 .flags = GENL_ADMIN_PERM,
2024 .doit = nl80211_del_beacon,
2027 .cmd = NL80211_CMD_GET_STATION,
2028 .doit = nl80211_get_station,
2029 .dumpit = nl80211_dump_station,
2030 .policy = nl80211_policy,
2031 .flags = GENL_ADMIN_PERM,
2034 .cmd = NL80211_CMD_SET_STATION,
2035 .doit = nl80211_set_station,
2036 .policy = nl80211_policy,
2037 .flags = GENL_ADMIN_PERM,
2040 .cmd = NL80211_CMD_NEW_STATION,
2041 .doit = nl80211_new_station,
2042 .policy = nl80211_policy,
2043 .flags = GENL_ADMIN_PERM,
2046 .cmd = NL80211_CMD_DEL_STATION,
2047 .doit = nl80211_del_station,
2048 .policy = nl80211_policy,
2049 .flags = GENL_ADMIN_PERM,
2052 .cmd = NL80211_CMD_GET_MPATH,
2053 .doit = nl80211_get_mpath,
2054 .dumpit = nl80211_dump_mpath,
2055 .policy = nl80211_policy,
2056 .flags = GENL_ADMIN_PERM,
2059 .cmd = NL80211_CMD_SET_MPATH,
2060 .doit = nl80211_set_mpath,
2061 .policy = nl80211_policy,
2062 .flags = GENL_ADMIN_PERM,
2065 .cmd = NL80211_CMD_NEW_MPATH,
2066 .doit = nl80211_new_mpath,
2067 .policy = nl80211_policy,
2068 .flags = GENL_ADMIN_PERM,
2071 .cmd = NL80211_CMD_DEL_MPATH,
2072 .doit = nl80211_del_mpath,
2073 .policy = nl80211_policy,
2074 .flags = GENL_ADMIN_PERM,
2077 .cmd = NL80211_CMD_SET_BSS,
2078 .doit = nl80211_set_bss,
2079 .policy = nl80211_policy,
2080 .flags = GENL_ADMIN_PERM,
2083 .cmd = NL80211_CMD_SET_REG,
2084 .doit = nl80211_set_reg,
2085 .policy = nl80211_policy,
2086 .flags = GENL_ADMIN_PERM,
2089 .cmd = NL80211_CMD_REQ_SET_REG,
2090 .doit = nl80211_req_set_reg,
2091 .policy = nl80211_policy,
2092 .flags = GENL_ADMIN_PERM,
2095 .cmd = NL80211_CMD_GET_MESH_PARAMS,
2096 .doit = nl80211_get_mesh_params,
2097 .policy = nl80211_policy,
2098 /* can be retrieved by unprivileged users */
2101 .cmd = NL80211_CMD_SET_MESH_PARAMS,
2102 .doit = nl80211_set_mesh_params,
2103 .policy = nl80211_policy,
2104 .flags = GENL_ADMIN_PERM,
2108 /* multicast groups */
2109 static struct genl_multicast_group nl80211_config_mcgrp = {
2113 /* notification functions */
2115 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
2117 struct sk_buff *msg;
2119 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
2123 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
2128 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
2131 /* initialisation/exit functions */
2133 int nl80211_init(void)
2137 err = genl_register_family(&nl80211_fam);
2141 for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
2142 err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
2147 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
2153 genl_unregister_family(&nl80211_fam);
2157 void nl80211_exit(void)
2159 genl_unregister_family(&nl80211_fam);