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 },
63 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
64 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
65 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
67 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
69 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
70 .len = WLAN_MAX_KEY_LEN },
71 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
72 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
73 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
75 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
76 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
77 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
78 .len = IEEE80211_MAX_DATA_LEN },
79 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
80 .len = IEEE80211_MAX_DATA_LEN },
81 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
82 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
83 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
84 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
85 .len = NL80211_MAX_SUPP_RATES },
86 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
87 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
88 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
89 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
90 .len = IEEE80211_MAX_MESH_ID_LEN },
91 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
93 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
94 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
96 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
97 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
98 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
99 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
100 .len = NL80211_MAX_SUPP_RATES },
102 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
104 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
105 .len = NL80211_HT_CAPABILITY_LEN },
108 /* message building helper */
109 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
112 /* since there is no private header just add the generic one */
113 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
116 /* netlink command implementations */
118 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
119 struct cfg80211_registered_device *dev)
122 struct nlattr *nl_bands, *nl_band;
123 struct nlattr *nl_freqs, *nl_freq;
124 struct nlattr *nl_rates, *nl_rate;
125 struct nlattr *nl_modes;
126 enum ieee80211_band band;
127 struct ieee80211_channel *chan;
128 struct ieee80211_rate *rate;
130 u16 ifmodes = dev->wiphy.interface_modes;
132 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
136 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
137 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
139 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
141 goto nla_put_failure;
146 NLA_PUT_FLAG(msg, i);
151 nla_nest_end(msg, nl_modes);
153 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
155 goto nla_put_failure;
157 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
158 if (!dev->wiphy.bands[band])
161 nl_band = nla_nest_start(msg, band);
163 goto nla_put_failure;
166 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
167 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
168 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
169 &dev->wiphy.bands[band]->ht_cap.mcs);
170 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
171 dev->wiphy.bands[band]->ht_cap.cap);
172 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
173 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
174 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
175 dev->wiphy.bands[band]->ht_cap.ampdu_density);
178 /* add frequencies */
179 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
181 goto nla_put_failure;
183 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
184 nl_freq = nla_nest_start(msg, i);
186 goto nla_put_failure;
188 chan = &dev->wiphy.bands[band]->channels[i];
189 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
192 if (chan->flags & IEEE80211_CHAN_DISABLED)
193 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
194 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
195 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
196 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
197 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
198 if (chan->flags & IEEE80211_CHAN_RADAR)
199 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
201 nla_nest_end(msg, nl_freq);
204 nla_nest_end(msg, nl_freqs);
207 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
209 goto nla_put_failure;
211 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
212 nl_rate = nla_nest_start(msg, i);
214 goto nla_put_failure;
216 rate = &dev->wiphy.bands[band]->bitrates[i];
217 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
219 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
221 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
223 nla_nest_end(msg, nl_rate);
226 nla_nest_end(msg, nl_rates);
228 nla_nest_end(msg, nl_band);
230 nla_nest_end(msg, nl_bands);
232 return genlmsg_end(msg, hdr);
235 genlmsg_cancel(msg, hdr);
239 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
242 int start = cb->args[0];
243 struct cfg80211_registered_device *dev;
245 mutex_lock(&cfg80211_drv_mutex);
246 list_for_each_entry(dev, &cfg80211_drv_list, list) {
249 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
250 cb->nlh->nlmsg_seq, NLM_F_MULTI,
256 mutex_unlock(&cfg80211_drv_mutex);
263 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
266 struct cfg80211_registered_device *dev;
268 dev = cfg80211_get_dev_from_info(info);
272 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
276 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
279 cfg80211_put_dev(dev);
281 return genlmsg_unicast(msg, info->snd_pid);
286 cfg80211_put_dev(dev);
290 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
291 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
292 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
293 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
294 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
295 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
298 static int parse_txq_params(struct nlattr *tb[],
299 struct ieee80211_txq_params *txq_params)
301 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
302 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
303 !tb[NL80211_TXQ_ATTR_AIFS])
306 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
307 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
308 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
309 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
310 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
315 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
317 struct cfg80211_registered_device *rdev;
318 int result = 0, rem_txq_params = 0;
319 struct nlattr *nl_txq_params;
321 rdev = cfg80211_get_dev_from_info(info);
323 return PTR_ERR(rdev);
325 if (info->attrs[NL80211_ATTR_WIPHY_NAME]) {
326 result = cfg80211_dev_rename(
327 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
332 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
333 struct ieee80211_txq_params txq_params;
334 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
336 if (!rdev->ops->set_txq_params) {
337 result = -EOPNOTSUPP;
341 nla_for_each_nested(nl_txq_params,
342 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
344 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
345 nla_data(nl_txq_params),
346 nla_len(nl_txq_params),
348 result = parse_txq_params(tb, &txq_params);
352 result = rdev->ops->set_txq_params(&rdev->wiphy,
360 cfg80211_put_dev(rdev);
365 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
366 struct net_device *dev)
370 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
374 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
375 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
376 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
377 return genlmsg_end(msg, hdr);
380 genlmsg_cancel(msg, hdr);
384 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
388 int wp_start = cb->args[0];
389 int if_start = cb->args[1];
390 struct cfg80211_registered_device *dev;
391 struct wireless_dev *wdev;
393 mutex_lock(&cfg80211_drv_mutex);
394 list_for_each_entry(dev, &cfg80211_drv_list, list) {
395 if (wp_idx < wp_start) {
401 mutex_lock(&dev->devlist_mtx);
402 list_for_each_entry(wdev, &dev->netdev_list, list) {
403 if (if_idx < if_start) {
407 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
408 cb->nlh->nlmsg_seq, NLM_F_MULTI,
410 mutex_unlock(&dev->devlist_mtx);
415 mutex_unlock(&dev->devlist_mtx);
420 mutex_unlock(&cfg80211_drv_mutex);
422 cb->args[0] = wp_idx;
423 cb->args[1] = if_idx;
428 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
431 struct cfg80211_registered_device *dev;
432 struct net_device *netdev;
435 err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev);
439 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
443 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
447 cfg80211_put_dev(dev);
449 return genlmsg_unicast(msg, info->snd_pid);
455 cfg80211_put_dev(dev);
459 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
460 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
461 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
462 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
463 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
464 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
467 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
469 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
477 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
478 nla, mntr_flags_policy))
481 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
483 *mntrflags |= (1<<flag);
488 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
490 struct cfg80211_registered_device *drv;
491 struct vif_params params;
493 enum nl80211_iftype type;
494 struct net_device *dev;
495 u32 _flags, *flags = NULL;
497 memset(¶ms, 0, sizeof(params));
499 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
502 ifindex = dev->ifindex;
503 type = dev->ieee80211_ptr->iftype;
507 if (info->attrs[NL80211_ATTR_IFTYPE]) {
508 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
509 if (type > NL80211_IFTYPE_MAX)
513 if (!drv->ops->change_virtual_intf ||
514 !(drv->wiphy.interface_modes & (1 << type))) {
519 if (info->attrs[NL80211_ATTR_MESH_ID]) {
520 if (type != NL80211_IFTYPE_MESH_POINT) {
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]);
528 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
529 if (type != NL80211_IFTYPE_MONITOR) {
533 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
539 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
540 type, flags, ¶ms);
542 dev = __dev_get_by_index(&init_net, ifindex);
543 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
548 cfg80211_put_dev(drv);
552 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
554 struct cfg80211_registered_device *drv;
555 struct vif_params params;
557 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
560 memset(¶ms, 0, sizeof(params));
562 if (!info->attrs[NL80211_ATTR_IFNAME])
565 if (info->attrs[NL80211_ATTR_IFTYPE]) {
566 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
567 if (type > NL80211_IFTYPE_MAX)
571 drv = cfg80211_get_dev_from_info(info);
575 if (!drv->ops->add_virtual_intf ||
576 !(drv->wiphy.interface_modes & (1 << type))) {
581 if (type == NL80211_IFTYPE_MESH_POINT &&
582 info->attrs[NL80211_ATTR_MESH_ID]) {
583 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
584 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
588 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
589 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
591 err = drv->ops->add_virtual_intf(&drv->wiphy,
592 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
593 type, err ? NULL : &flags, ¶ms);
598 cfg80211_put_dev(drv);
602 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
604 struct cfg80211_registered_device *drv;
606 struct net_device *dev;
608 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
611 ifindex = dev->ifindex;
614 if (!drv->ops->del_virtual_intf) {
620 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
624 cfg80211_put_dev(drv);
628 struct get_key_cookie {
633 static void get_key_callback(void *c, struct key_params *params)
635 struct get_key_cookie *cookie = c;
638 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
639 params->key_len, params->key);
642 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
643 params->seq_len, params->seq);
646 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
654 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
656 struct cfg80211_registered_device *drv;
658 struct net_device *dev;
661 struct get_key_cookie cookie = {
667 if (info->attrs[NL80211_ATTR_KEY_IDX])
668 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
673 if (info->attrs[NL80211_ATTR_MAC])
674 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
676 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
680 if (!drv->ops->get_key) {
685 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
691 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
692 NL80211_CMD_NEW_KEY);
701 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
702 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
704 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
707 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
708 &cookie, get_key_callback);
715 goto nla_put_failure;
717 genlmsg_end(msg, hdr);
718 err = genlmsg_unicast(msg, info->snd_pid);
725 cfg80211_put_dev(drv);
730 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
732 struct cfg80211_registered_device *drv;
734 struct net_device *dev;
737 if (!info->attrs[NL80211_ATTR_KEY_IDX])
740 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
745 /* currently only support setting default key */
746 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
749 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
753 if (!drv->ops->set_default_key) {
759 err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
763 cfg80211_put_dev(drv);
768 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
770 struct cfg80211_registered_device *drv;
772 struct net_device *dev;
773 struct key_params params;
777 memset(¶ms, 0, sizeof(params));
779 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
782 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
783 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
784 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
787 if (info->attrs[NL80211_ATTR_KEY_IDX])
788 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
790 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
792 if (info->attrs[NL80211_ATTR_MAC])
793 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
799 * Disallow pairwise keys with non-zero index unless it's WEP
800 * (because current deployments use pairwise WEP keys with
801 * non-zero indizes but 802.11i clearly specifies to use zero)
803 if (mac_addr && key_idx &&
804 params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
805 params.cipher != WLAN_CIPHER_SUITE_WEP104)
808 /* TODO: add definitions for the lengths to linux/ieee80211.h */
809 switch (params.cipher) {
810 case WLAN_CIPHER_SUITE_WEP40:
811 if (params.key_len != 5)
814 case WLAN_CIPHER_SUITE_TKIP:
815 if (params.key_len != 32)
818 case WLAN_CIPHER_SUITE_CCMP:
819 if (params.key_len != 16)
822 case WLAN_CIPHER_SUITE_WEP104:
823 if (params.key_len != 13)
830 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
834 if (!drv->ops->add_key) {
840 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms);
844 cfg80211_put_dev(drv);
849 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
851 struct cfg80211_registered_device *drv;
853 struct net_device *dev;
857 if (info->attrs[NL80211_ATTR_KEY_IDX])
858 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
863 if (info->attrs[NL80211_ATTR_MAC])
864 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
866 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
870 if (!drv->ops->del_key) {
876 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
880 cfg80211_put_dev(drv);
885 static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
887 int (*call)(struct wiphy *wiphy, struct net_device *dev,
888 struct beacon_parameters *info);
889 struct cfg80211_registered_device *drv;
891 struct net_device *dev;
892 struct beacon_parameters params;
895 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
899 switch (info->genlhdr->cmd) {
900 case NL80211_CMD_NEW_BEACON:
901 /* these are required for NEW_BEACON */
902 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
903 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
904 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
909 call = drv->ops->add_beacon;
911 case NL80211_CMD_SET_BEACON:
912 call = drv->ops->set_beacon;
925 memset(¶ms, 0, sizeof(params));
927 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
929 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
933 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
935 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
939 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
940 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
942 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
946 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
947 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
949 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
959 err = call(&drv->wiphy, dev, ¶ms);
963 cfg80211_put_dev(drv);
968 static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
970 struct cfg80211_registered_device *drv;
972 struct net_device *dev;
974 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
978 if (!drv->ops->del_beacon) {
984 err = drv->ops->del_beacon(&drv->wiphy, dev);
988 cfg80211_put_dev(drv);
993 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
994 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
995 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
996 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
999 static int parse_station_flags(struct nlattr *nla, u32 *staflags)
1001 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1009 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1010 nla, sta_flags_policy))
1013 *staflags = STATION_FLAG_CHANGED;
1015 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1017 *staflags |= (1<<flag);
1022 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1023 int flags, struct net_device *dev,
1024 u8 *mac_addr, struct station_info *sinfo)
1027 struct nlattr *sinfoattr;
1029 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1033 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1034 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1036 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1038 goto nla_put_failure;
1039 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1040 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1041 sinfo->inactive_time);
1042 if (sinfo->filled & STATION_INFO_RX_BYTES)
1043 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1045 if (sinfo->filled & STATION_INFO_TX_BYTES)
1046 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1048 if (sinfo->filled & STATION_INFO_LLID)
1049 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1051 if (sinfo->filled & STATION_INFO_PLID)
1052 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1054 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1055 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1056 sinfo->plink_state);
1058 nla_nest_end(msg, sinfoattr);
1060 return genlmsg_end(msg, hdr);
1063 genlmsg_cancel(msg, hdr);
1067 static int nl80211_dump_station(struct sk_buff *skb,
1068 struct netlink_callback *cb)
1070 struct station_info sinfo;
1071 struct cfg80211_registered_device *dev;
1072 struct net_device *netdev;
1073 u8 mac_addr[ETH_ALEN];
1074 int ifidx = cb->args[0];
1075 int sta_idx = cb->args[1];
1079 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1080 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1085 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1088 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1093 netdev = dev_get_by_index(&init_net, ifidx);
1097 dev = cfg80211_get_dev_from_ifindex(ifidx);
1100 goto out_put_netdev;
1103 if (!dev->ops->dump_station) {
1111 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1118 if (nl80211_send_station(skb,
1119 NETLINK_CB(cb->skb).pid,
1120 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1130 cb->args[1] = sta_idx;
1135 cfg80211_put_dev(dev);
1142 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1144 struct cfg80211_registered_device *drv;
1146 struct net_device *dev;
1147 struct station_info sinfo;
1148 struct sk_buff *msg;
1149 u8 *mac_addr = NULL;
1151 memset(&sinfo, 0, sizeof(sinfo));
1153 if (!info->attrs[NL80211_ATTR_MAC])
1156 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1158 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1162 if (!drv->ops->get_station) {
1168 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
1174 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1178 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
1179 dev, mac_addr, &sinfo) < 0)
1182 err = genlmsg_unicast(msg, info->snd_pid);
1189 cfg80211_put_dev(drv);
1195 * Get vlan interface making sure it is on the right wiphy.
1197 static int get_vlan(struct nlattr *vlanattr,
1198 struct cfg80211_registered_device *rdev,
1199 struct net_device **vlan)
1204 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1207 if (!(*vlan)->ieee80211_ptr)
1209 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1215 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1217 struct cfg80211_registered_device *drv;
1219 struct net_device *dev;
1220 struct station_parameters params;
1221 u8 *mac_addr = NULL;
1223 memset(¶ms, 0, sizeof(params));
1225 params.listen_interval = -1;
1227 if (info->attrs[NL80211_ATTR_STA_AID])
1230 if (!info->attrs[NL80211_ATTR_MAC])
1233 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1235 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1236 params.supported_rates =
1237 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1238 params.supported_rates_len =
1239 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1242 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1243 params.listen_interval =
1244 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1246 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1248 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1250 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1251 ¶ms.station_flags))
1254 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1255 params.plink_action =
1256 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1258 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1262 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
1266 if (!drv->ops->change_station) {
1272 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms);
1277 dev_put(params.vlan);
1278 cfg80211_put_dev(drv);
1283 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1285 struct cfg80211_registered_device *drv;
1287 struct net_device *dev;
1288 struct station_parameters params;
1289 u8 *mac_addr = NULL;
1291 memset(¶ms, 0, sizeof(params));
1293 if (!info->attrs[NL80211_ATTR_MAC])
1296 if (!info->attrs[NL80211_ATTR_STA_AID])
1299 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1302 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1305 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1306 params.supported_rates =
1307 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1308 params.supported_rates_len =
1309 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1310 params.listen_interval =
1311 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1312 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
1313 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1315 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1317 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1318 ¶ms.station_flags))
1321 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1325 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
1329 if (!drv->ops->add_station) {
1335 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms);
1340 dev_put(params.vlan);
1341 cfg80211_put_dev(drv);
1346 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1348 struct cfg80211_registered_device *drv;
1350 struct net_device *dev;
1351 u8 *mac_addr = NULL;
1353 if (info->attrs[NL80211_ATTR_MAC])
1354 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1356 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1360 if (!drv->ops->del_station) {
1366 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
1370 cfg80211_put_dev(drv);
1375 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1376 int flags, struct net_device *dev,
1377 u8 *dst, u8 *next_hop,
1378 struct mpath_info *pinfo)
1381 struct nlattr *pinfoattr;
1383 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1387 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1388 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1389 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1391 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1393 goto nla_put_failure;
1394 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1395 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1397 if (pinfo->filled & MPATH_INFO_DSN)
1398 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1400 if (pinfo->filled & MPATH_INFO_METRIC)
1401 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1403 if (pinfo->filled & MPATH_INFO_EXPTIME)
1404 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1406 if (pinfo->filled & MPATH_INFO_FLAGS)
1407 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1409 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1410 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1411 pinfo->discovery_timeout);
1412 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1413 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1414 pinfo->discovery_retries);
1416 nla_nest_end(msg, pinfoattr);
1418 return genlmsg_end(msg, hdr);
1421 genlmsg_cancel(msg, hdr);
1425 static int nl80211_dump_mpath(struct sk_buff *skb,
1426 struct netlink_callback *cb)
1428 struct mpath_info pinfo;
1429 struct cfg80211_registered_device *dev;
1430 struct net_device *netdev;
1432 u8 next_hop[ETH_ALEN];
1433 int ifidx = cb->args[0];
1434 int path_idx = cb->args[1];
1438 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1439 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1444 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1447 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1452 netdev = dev_get_by_index(&init_net, ifidx);
1456 dev = cfg80211_get_dev_from_ifindex(ifidx);
1459 goto out_put_netdev;
1462 if (!dev->ops->dump_mpath) {
1470 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
1471 dst, next_hop, &pinfo);
1477 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1478 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1479 netdev, dst, next_hop,
1488 cb->args[1] = path_idx;
1493 cfg80211_put_dev(dev);
1500 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1502 struct cfg80211_registered_device *drv;
1504 struct net_device *dev;
1505 struct mpath_info pinfo;
1506 struct sk_buff *msg;
1508 u8 next_hop[ETH_ALEN];
1510 memset(&pinfo, 0, sizeof(pinfo));
1512 if (!info->attrs[NL80211_ATTR_MAC])
1515 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1517 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1521 if (!drv->ops->get_mpath) {
1527 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
1533 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1537 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
1538 dev, dst, next_hop, &pinfo) < 0)
1541 err = genlmsg_unicast(msg, info->snd_pid);
1548 cfg80211_put_dev(drv);
1553 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
1555 struct cfg80211_registered_device *drv;
1557 struct net_device *dev;
1559 u8 *next_hop = NULL;
1561 if (!info->attrs[NL80211_ATTR_MAC])
1564 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1567 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1568 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1570 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1574 if (!drv->ops->change_mpath) {
1580 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
1584 cfg80211_put_dev(drv);
1588 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
1590 struct cfg80211_registered_device *drv;
1592 struct net_device *dev;
1594 u8 *next_hop = NULL;
1596 if (!info->attrs[NL80211_ATTR_MAC])
1599 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1602 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1603 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1605 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1609 if (!drv->ops->add_mpath) {
1615 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
1619 cfg80211_put_dev(drv);
1624 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
1626 struct cfg80211_registered_device *drv;
1628 struct net_device *dev;
1631 if (info->attrs[NL80211_ATTR_MAC])
1632 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1634 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1638 if (!drv->ops->del_mpath) {
1644 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
1648 cfg80211_put_dev(drv);
1653 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
1655 struct cfg80211_registered_device *drv;
1657 struct net_device *dev;
1658 struct bss_parameters params;
1660 memset(¶ms, 0, sizeof(params));
1661 /* default to not changing parameters */
1662 params.use_cts_prot = -1;
1663 params.use_short_preamble = -1;
1664 params.use_short_slot_time = -1;
1666 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
1667 params.use_cts_prot =
1668 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
1669 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
1670 params.use_short_preamble =
1671 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
1672 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
1673 params.use_short_slot_time =
1674 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
1675 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
1676 params.basic_rates =
1677 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
1678 params.basic_rates_len =
1679 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
1682 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1686 if (!drv->ops->change_bss) {
1692 err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms);
1696 cfg80211_put_dev(drv);
1701 static const struct nla_policy
1702 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
1703 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1704 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1705 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1706 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1707 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1708 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1711 static int parse_reg_rule(struct nlattr *tb[],
1712 struct ieee80211_reg_rule *reg_rule)
1714 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
1715 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
1717 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
1719 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
1721 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
1723 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1725 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1728 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
1730 freq_range->start_freq_khz =
1731 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
1732 freq_range->end_freq_khz =
1733 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
1734 freq_range->max_bandwidth_khz =
1735 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
1737 power_rule->max_eirp =
1738 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
1740 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
1741 power_rule->max_antenna_gain =
1742 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
1747 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
1752 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1755 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1757 #ifdef CONFIG_WIRELESS_OLD_REGULATORY
1758 /* We ignore world regdom requests with the old regdom setup */
1759 if (is_world_regdom(data))
1762 mutex_lock(&cfg80211_drv_mutex);
1763 r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data);
1764 mutex_unlock(&cfg80211_drv_mutex);
1768 static int nl80211_get_mesh_params(struct sk_buff *skb,
1769 struct genl_info *info)
1771 struct cfg80211_registered_device *drv;
1772 struct mesh_config cur_params;
1774 struct net_device *dev;
1776 struct nlattr *pinfoattr;
1777 struct sk_buff *msg;
1779 /* Look up our device */
1780 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1784 /* Get the mesh params */
1786 err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
1791 /* Draw up a netlink message to send back */
1792 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1797 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1798 NL80211_CMD_GET_MESH_PARAMS);
1800 goto nla_put_failure;
1801 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
1803 goto nla_put_failure;
1804 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1805 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
1806 cur_params.dot11MeshRetryTimeout);
1807 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
1808 cur_params.dot11MeshConfirmTimeout);
1809 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
1810 cur_params.dot11MeshHoldingTimeout);
1811 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
1812 cur_params.dot11MeshMaxPeerLinks);
1813 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
1814 cur_params.dot11MeshMaxRetries);
1815 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
1816 cur_params.dot11MeshTTL);
1817 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
1818 cur_params.auto_open_plinks);
1819 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
1820 cur_params.dot11MeshHWMPmaxPREQretries);
1821 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
1822 cur_params.path_refresh_time);
1823 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
1824 cur_params.min_discovery_timeout);
1825 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
1826 cur_params.dot11MeshHWMPactivePathTimeout);
1827 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
1828 cur_params.dot11MeshHWMPpreqMinInterval);
1829 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1830 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
1831 nla_nest_end(msg, pinfoattr);
1832 genlmsg_end(msg, hdr);
1833 err = genlmsg_unicast(msg, info->snd_pid);
1837 genlmsg_cancel(msg, hdr);
1841 cfg80211_put_dev(drv);
1846 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
1848 if (table[attr_num]) {\
1849 cfg.param = nla_fn(table[attr_num]); \
1850 mask |= (1 << (attr_num - 1)); \
1854 static struct nla_policy
1855 nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
1856 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
1857 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
1858 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
1859 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
1860 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
1861 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
1862 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
1864 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
1865 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
1866 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
1867 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
1868 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
1869 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
1872 static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
1876 struct cfg80211_registered_device *drv;
1877 struct net_device *dev;
1878 struct mesh_config cfg;
1879 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
1880 struct nlattr *parent_attr;
1882 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
1885 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
1886 parent_attr, nl80211_meshconf_params_policy))
1889 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1893 /* This makes sure that there aren't more than 32 mesh config
1894 * parameters (otherwise our bitfield scheme would not work.) */
1895 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
1897 /* Fill in the params struct */
1899 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
1900 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
1901 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
1902 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
1903 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
1904 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
1905 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
1906 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
1907 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
1908 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
1909 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
1910 mask, NL80211_MESHCONF_TTL, nla_get_u8);
1911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
1912 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
1913 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
1914 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
1916 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
1917 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
1918 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
1919 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
1921 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
1922 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
1924 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
1925 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
1927 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
1928 dot11MeshHWMPnetDiameterTraversalTime,
1929 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1934 err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
1938 cfg80211_put_dev(drv);
1943 #undef FILL_IN_MESH_PARAM_IF_SET
1945 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
1947 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
1948 struct nlattr *nl_reg_rule;
1949 char *alpha2 = NULL;
1950 int rem_reg_rules = 0, r = 0;
1951 u32 num_rules = 0, rule_idx = 0, size_of_regd;
1952 struct ieee80211_regdomain *rd = NULL;
1954 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1957 if (!info->attrs[NL80211_ATTR_REG_RULES])
1960 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1962 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1965 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
1969 if (!reg_is_valid_request(alpha2))
1972 size_of_regd = sizeof(struct ieee80211_regdomain) +
1973 (num_rules * sizeof(struct ieee80211_reg_rule));
1975 rd = kzalloc(size_of_regd, GFP_KERNEL);
1979 rd->n_reg_rules = num_rules;
1980 rd->alpha2[0] = alpha2[0];
1981 rd->alpha2[1] = alpha2[1];
1983 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1985 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1986 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
1988 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
1994 if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
1998 BUG_ON(rule_idx != num_rules);
2000 mutex_lock(&cfg80211_drv_mutex);
2002 mutex_unlock(&cfg80211_drv_mutex);
2010 static struct genl_ops nl80211_ops[] = {
2012 .cmd = NL80211_CMD_GET_WIPHY,
2013 .doit = nl80211_get_wiphy,
2014 .dumpit = nl80211_dump_wiphy,
2015 .policy = nl80211_policy,
2016 /* can be retrieved by unprivileged users */
2019 .cmd = NL80211_CMD_SET_WIPHY,
2020 .doit = nl80211_set_wiphy,
2021 .policy = nl80211_policy,
2022 .flags = GENL_ADMIN_PERM,
2025 .cmd = NL80211_CMD_GET_INTERFACE,
2026 .doit = nl80211_get_interface,
2027 .dumpit = nl80211_dump_interface,
2028 .policy = nl80211_policy,
2029 /* can be retrieved by unprivileged users */
2032 .cmd = NL80211_CMD_SET_INTERFACE,
2033 .doit = nl80211_set_interface,
2034 .policy = nl80211_policy,
2035 .flags = GENL_ADMIN_PERM,
2038 .cmd = NL80211_CMD_NEW_INTERFACE,
2039 .doit = nl80211_new_interface,
2040 .policy = nl80211_policy,
2041 .flags = GENL_ADMIN_PERM,
2044 .cmd = NL80211_CMD_DEL_INTERFACE,
2045 .doit = nl80211_del_interface,
2046 .policy = nl80211_policy,
2047 .flags = GENL_ADMIN_PERM,
2050 .cmd = NL80211_CMD_GET_KEY,
2051 .doit = nl80211_get_key,
2052 .policy = nl80211_policy,
2053 .flags = GENL_ADMIN_PERM,
2056 .cmd = NL80211_CMD_SET_KEY,
2057 .doit = nl80211_set_key,
2058 .policy = nl80211_policy,
2059 .flags = GENL_ADMIN_PERM,
2062 .cmd = NL80211_CMD_NEW_KEY,
2063 .doit = nl80211_new_key,
2064 .policy = nl80211_policy,
2065 .flags = GENL_ADMIN_PERM,
2068 .cmd = NL80211_CMD_DEL_KEY,
2069 .doit = nl80211_del_key,
2070 .policy = nl80211_policy,
2071 .flags = GENL_ADMIN_PERM,
2074 .cmd = NL80211_CMD_SET_BEACON,
2075 .policy = nl80211_policy,
2076 .flags = GENL_ADMIN_PERM,
2077 .doit = nl80211_addset_beacon,
2080 .cmd = NL80211_CMD_NEW_BEACON,
2081 .policy = nl80211_policy,
2082 .flags = GENL_ADMIN_PERM,
2083 .doit = nl80211_addset_beacon,
2086 .cmd = NL80211_CMD_DEL_BEACON,
2087 .policy = nl80211_policy,
2088 .flags = GENL_ADMIN_PERM,
2089 .doit = nl80211_del_beacon,
2092 .cmd = NL80211_CMD_GET_STATION,
2093 .doit = nl80211_get_station,
2094 .dumpit = nl80211_dump_station,
2095 .policy = nl80211_policy,
2096 .flags = GENL_ADMIN_PERM,
2099 .cmd = NL80211_CMD_SET_STATION,
2100 .doit = nl80211_set_station,
2101 .policy = nl80211_policy,
2102 .flags = GENL_ADMIN_PERM,
2105 .cmd = NL80211_CMD_NEW_STATION,
2106 .doit = nl80211_new_station,
2107 .policy = nl80211_policy,
2108 .flags = GENL_ADMIN_PERM,
2111 .cmd = NL80211_CMD_DEL_STATION,
2112 .doit = nl80211_del_station,
2113 .policy = nl80211_policy,
2114 .flags = GENL_ADMIN_PERM,
2117 .cmd = NL80211_CMD_GET_MPATH,
2118 .doit = nl80211_get_mpath,
2119 .dumpit = nl80211_dump_mpath,
2120 .policy = nl80211_policy,
2121 .flags = GENL_ADMIN_PERM,
2124 .cmd = NL80211_CMD_SET_MPATH,
2125 .doit = nl80211_set_mpath,
2126 .policy = nl80211_policy,
2127 .flags = GENL_ADMIN_PERM,
2130 .cmd = NL80211_CMD_NEW_MPATH,
2131 .doit = nl80211_new_mpath,
2132 .policy = nl80211_policy,
2133 .flags = GENL_ADMIN_PERM,
2136 .cmd = NL80211_CMD_DEL_MPATH,
2137 .doit = nl80211_del_mpath,
2138 .policy = nl80211_policy,
2139 .flags = GENL_ADMIN_PERM,
2142 .cmd = NL80211_CMD_SET_BSS,
2143 .doit = nl80211_set_bss,
2144 .policy = nl80211_policy,
2145 .flags = GENL_ADMIN_PERM,
2148 .cmd = NL80211_CMD_SET_REG,
2149 .doit = nl80211_set_reg,
2150 .policy = nl80211_policy,
2151 .flags = GENL_ADMIN_PERM,
2154 .cmd = NL80211_CMD_REQ_SET_REG,
2155 .doit = nl80211_req_set_reg,
2156 .policy = nl80211_policy,
2157 .flags = GENL_ADMIN_PERM,
2160 .cmd = NL80211_CMD_GET_MESH_PARAMS,
2161 .doit = nl80211_get_mesh_params,
2162 .policy = nl80211_policy,
2163 /* can be retrieved by unprivileged users */
2166 .cmd = NL80211_CMD_SET_MESH_PARAMS,
2167 .doit = nl80211_set_mesh_params,
2168 .policy = nl80211_policy,
2169 .flags = GENL_ADMIN_PERM,
2173 /* multicast groups */
2174 static struct genl_multicast_group nl80211_config_mcgrp = {
2178 /* notification functions */
2180 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
2182 struct sk_buff *msg;
2184 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
2188 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
2193 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
2196 /* initialisation/exit functions */
2198 int nl80211_init(void)
2202 err = genl_register_family(&nl80211_fam);
2206 for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
2207 err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
2212 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
2218 genl_unregister_family(&nl80211_fam);
2222 void nl80211_exit(void)
2224 genl_unregister_family(&nl80211_fam);