#include <linux/if.h>
#include <linux/module.h>
#include <linux/err.h>
-#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/if_ether.h>
#include <linux/ieee80211.h>
#include <linux/nl80211.h>
#include <linux/rtnetlink.h>
#include <linux/netlink.h>
+#include <linux/etherdevice.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
#include "core.h"
[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
.len = BUS_ID_SIZE-1 },
[NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
+ [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
+ [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
[NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
.len = NL80211_HT_CAPABILITY_LEN },
+
+ [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
+ [NL80211_ATTR_IE] = { .type = NLA_BINARY,
+ .len = IEEE80211_MAX_DATA_LEN },
+ [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
+ [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
+
+ [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
+ .len = IEEE80211_MAX_SSID_LEN },
+ [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
+ [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
};
+/* IE validation */
+static bool is_valid_ie_attr(const struct nlattr *attr)
+{
+ const u8 *pos;
+ int len;
+
+ if (!attr)
+ return true;
+
+ pos = nla_data(attr);
+ len = nla_len(attr);
+
+ while (len) {
+ u8 elemlen;
+
+ if (len < 2)
+ return false;
+ len -= 2;
+
+ elemlen = pos[1];
+ if (elemlen > len)
+ return false;
+
+ len -= elemlen;
+ pos += 2 + elemlen;
+ }
+
+ return true;
+}
+
/* message building helper */
static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
int flags, u8 cmd)
return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
}
+static int nl80211_msg_put_channel(struct sk_buff *msg,
+ struct ieee80211_channel *chan)
+{
+ NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
+ chan->center_freq);
+
+ if (chan->flags & IEEE80211_CHAN_DISABLED)
+ NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
+ if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
+ NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
+ if (chan->flags & IEEE80211_CHAN_NO_IBSS)
+ NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
+ if (chan->flags & IEEE80211_CHAN_RADAR)
+ NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
+
+ NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
+ DBM_TO_MBM(chan->max_power));
+
+ return 0;
+
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
/* netlink command implementations */
static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
struct nlattr *nl_freqs, *nl_freq;
struct nlattr *nl_rates, *nl_rate;
struct nlattr *nl_modes;
+ struct nlattr *nl_cmds;
enum ieee80211_band band;
struct ieee80211_channel *chan;
struct ieee80211_rate *rate;
if (!hdr)
return -1;
- NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
+ NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
+ dev->wiphy.max_scan_ssids);
+ NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
+ dev->wiphy.max_scan_ie_len);
+
+ NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
+ sizeof(u32) * dev->wiphy.n_cipher_suites,
+ dev->wiphy.cipher_suites);
nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
if (!nl_modes)
goto nla_put_failure;
chan = &dev->wiphy.bands[band]->channels[i];
- NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
- chan->center_freq);
- if (chan->flags & IEEE80211_CHAN_DISABLED)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
- if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
- if (chan->flags & IEEE80211_CHAN_NO_IBSS)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
- if (chan->flags & IEEE80211_CHAN_RADAR)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
-
- NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
- DBM_TO_MBM(chan->max_power));
+ if (nl80211_msg_put_channel(msg, chan))
+ goto nla_put_failure;
nla_nest_end(msg, nl_freq);
}
}
nla_nest_end(msg, nl_bands);
+ nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
+ if (!nl_cmds)
+ goto nla_put_failure;
+
+ i = 0;
+#define CMD(op, n) \
+ do { \
+ if (dev->ops->op) { \
+ i++; \
+ NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
+ } \
+ } while (0)
+
+ CMD(add_virtual_intf, NEW_INTERFACE);
+ CMD(change_virtual_intf, SET_INTERFACE);
+ CMD(add_key, NEW_KEY);
+ CMD(add_beacon, NEW_BEACON);
+ CMD(add_station, NEW_STATION);
+ CMD(add_mpath, NEW_MPATH);
+ CMD(set_mesh_params, SET_MESH_PARAMS);
+ CMD(change_bss, SET_BSS);
+ CMD(auth, AUTHENTICATE);
+ CMD(assoc, ASSOCIATE);
+ CMD(deauth, DEAUTHENTICATE);
+ CMD(disassoc, DISASSOCIATE);
+
+#undef CMD
+ nla_nest_end(msg, nl_cmds);
+
return genlmsg_end(msg, hdr);
nla_put_failure:
int start = cb->args[0];
struct cfg80211_registered_device *dev;
- mutex_lock(&cfg80211_drv_mutex);
+ mutex_lock(&cfg80211_mutex);
list_for_each_entry(dev, &cfg80211_drv_list, list) {
if (++idx <= start)
continue;
break;
}
}
- mutex_unlock(&cfg80211_drv_mutex);
+ mutex_unlock(&cfg80211_mutex);
cb->args[0] = idx;
int result = 0, rem_txq_params = 0;
struct nlattr *nl_txq_params;
- rdev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(rdev))
- return PTR_ERR(rdev);
+ rtnl_lock();
+
+ mutex_lock(&cfg80211_mutex);
- if (info->attrs[NL80211_ATTR_WIPHY_NAME]) {
+ rdev = __cfg80211_drv_from_info(info);
+ if (IS_ERR(rdev)) {
+ result = PTR_ERR(rdev);
+ goto unlock;
+ }
+
+ mutex_lock(&rdev->mtx);
+
+ if (info->attrs[NL80211_ATTR_WIPHY_NAME])
result = cfg80211_dev_rename(
rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
- if (result)
- goto bad_res;
- }
+
+ mutex_unlock(&cfg80211_mutex);
+
+ if (result)
+ goto bad_res;
if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
struct ieee80211_txq_params txq_params;
}
}
-bad_res:
- cfg80211_put_dev(rdev);
+ if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
+ enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
+ struct ieee80211_channel *chan;
+ struct ieee80211_sta_ht_cap *ht_cap;
+ u32 freq, sec_freq;
+
+ if (!rdev->ops->set_channel) {
+ result = -EOPNOTSUPP;
+ goto bad_res;
+ }
+
+ result = -EINVAL;
+
+ if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
+ channel_type = nla_get_u32(info->attrs[
+ NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
+ if (channel_type != NL80211_CHAN_NO_HT &&
+ channel_type != NL80211_CHAN_HT20 &&
+ channel_type != NL80211_CHAN_HT40PLUS &&
+ channel_type != NL80211_CHAN_HT40MINUS)
+ goto bad_res;
+ }
+
+ freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
+ chan = ieee80211_get_channel(&rdev->wiphy, freq);
+
+ /* Primary channel not allowed */
+ if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
+ goto bad_res;
+
+ if (channel_type == NL80211_CHAN_HT40MINUS)
+ sec_freq = freq - 20;
+ else if (channel_type == NL80211_CHAN_HT40PLUS)
+ sec_freq = freq + 20;
+ else
+ sec_freq = 0;
+
+ ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
+
+ /* no HT capabilities */
+ if (channel_type != NL80211_CHAN_NO_HT &&
+ !ht_cap->ht_supported)
+ goto bad_res;
+
+ if (sec_freq) {
+ struct ieee80211_channel *schan;
+
+ /* no 40 MHz capabilities */
+ if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
+ (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
+ goto bad_res;
+
+ schan = ieee80211_get_channel(&rdev->wiphy, sec_freq);
+
+ /* Secondary channel not allowed */
+ if (!schan || schan->flags & IEEE80211_CHAN_DISABLED)
+ goto bad_res;
+ }
+
+ result = rdev->ops->set_channel(&rdev->wiphy, chan,
+ channel_type);
+ if (result)
+ goto bad_res;
+ }
+
+
+ bad_res:
+ mutex_unlock(&rdev->mtx);
+ unlock:
+ rtnl_unlock();
return result;
}
struct cfg80211_registered_device *dev;
struct wireless_dev *wdev;
- mutex_lock(&cfg80211_drv_mutex);
+ mutex_lock(&cfg80211_mutex);
list_for_each_entry(dev, &cfg80211_drv_list, list) {
if (wp_idx < wp_start) {
wp_idx++;
wp_idx++;
}
out:
- mutex_unlock(&cfg80211_drv_mutex);
+ mutex_unlock(&cfg80211_mutex);
cb->args[0] = wp_idx;
cb->args[1] = if_idx;
enum nl80211_iftype type;
struct net_device *dev;
u32 _flags, *flags = NULL;
+ bool change = false;
memset(¶ms, 0, sizeof(params));
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto unlock_rtnl;
+
ifindex = dev->ifindex;
type = dev->ieee80211_ptr->iftype;
dev_put(dev);
- err = -EINVAL;
if (info->attrs[NL80211_ATTR_IFTYPE]) {
- type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
- if (type > NL80211_IFTYPE_MAX)
+ enum nl80211_iftype ntype;
+
+ ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+ if (type != ntype)
+ change = true;
+ type = ntype;
+ if (type > NL80211_IFTYPE_MAX) {
+ err = -EINVAL;
goto unlock;
+ }
}
if (!drv->ops->change_virtual_intf ||
}
params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
+ change = true;
}
if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
}
err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
&_flags);
- if (!err)
- flags = &_flags;
+ if (err)
+ goto unlock;
+
+ flags = &_flags;
+ change = true;
}
- rtnl_lock();
- err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
- type, flags, ¶ms);
+
+ if (change)
+ err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
+ type, flags, ¶ms);
+ else
+ err = 0;
dev = __dev_get_by_index(&init_net, ifindex);
WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
- rtnl_unlock();
-
unlock:
cfg80211_put_dev(drv);
+ unlock_rtnl:
+ rtnl_unlock();
return err;
}
return -EINVAL;
}
+ rtnl_lock();
+
drv = cfg80211_get_dev_from_info(info);
- if (IS_ERR(drv))
- return PTR_ERR(drv);
+ if (IS_ERR(drv)) {
+ err = PTR_ERR(drv);
+ goto unlock_rtnl;
+ }
if (!drv->ops->add_virtual_intf ||
!(drv->wiphy.interface_modes & (1 << type))) {
params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
}
- rtnl_lock();
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
&flags);
err = drv->ops->add_virtual_intf(&drv->wiphy,
nla_data(info->attrs[NL80211_ATTR_IFNAME]),
type, err ? NULL : &flags, ¶ms);
- rtnl_unlock();
-
unlock:
cfg80211_put_dev(drv);
+ unlock_rtnl:
+ rtnl_unlock();
return err;
}
int ifindex, err;
struct net_device *dev;
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto unlock_rtnl;
ifindex = dev->ifindex;
dev_put(dev);
goto out;
}
- rtnl_lock();
err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
+ unlock_rtnl:
+ rtnl_unlock();
return err;
}
if (info->attrs[NL80211_ATTR_KEY_IDX])
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
- if (key_idx > 3)
+ if (key_idx > 5)
return -EINVAL;
if (info->attrs[NL80211_ATTR_MAC])
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto unlock_rtnl;
if (!drv->ops->get_key) {
err = -EOPNOTSUPP;
if (mac_addr)
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
- rtnl_lock();
err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
&cookie, get_key_callback);
- rtnl_unlock();
if (err)
goto out;
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ unlock_rtnl:
+ rtnl_unlock();
+
return err;
}
int err;
struct net_device *dev;
u8 key_idx;
+ int (*func)(struct wiphy *wiphy, struct net_device *netdev,
+ u8 key_index);
if (!info->attrs[NL80211_ATTR_KEY_IDX])
return -EINVAL;
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
- if (key_idx > 3)
+ if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) {
+ if (key_idx < 4 || key_idx > 5)
+ return -EINVAL;
+ } else if (key_idx > 3)
return -EINVAL;
/* currently only support setting default key */
- if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
+ if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] &&
+ !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT])
return -EINVAL;
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto unlock_rtnl;
- if (!drv->ops->set_default_key) {
+ if (info->attrs[NL80211_ATTR_KEY_DEFAULT])
+ func = drv->ops->set_default_key;
+ else
+ func = drv->ops->set_default_mgmt_key;
+
+ if (!func) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
- err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
- rtnl_unlock();
+ err = func(&drv->wiphy, dev, key_idx);
out:
cfg80211_put_dev(drv);
dev_put(dev);
+
+ unlock_rtnl:
+ rtnl_unlock();
+
return err;
}
static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *drv;
- int err;
+ int err, i;
struct net_device *dev;
struct key_params params;
u8 key_idx = 0;
if (info->attrs[NL80211_ATTR_MAC])
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- if (key_idx > 3)
+ if (key_idx > 5)
return -EINVAL;
/*
if (params.key_len != 13)
return -EINVAL;
break;
+ case WLAN_CIPHER_SUITE_AES_CMAC:
+ if (params.key_len != 16)
+ return -EINVAL;
+ break;
default:
return -EINVAL;
}
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto unlock_rtnl;
+
+ for (i = 0; i < drv->wiphy.n_cipher_suites; i++)
+ if (params.cipher == drv->wiphy.cipher_suites[i])
+ break;
+ if (i == drv->wiphy.n_cipher_suites) {
+ err = -EINVAL;
+ goto out;
+ }
if (!drv->ops->add_key) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ unlock_rtnl:
+ rtnl_unlock();
+
return err;
}
if (info->attrs[NL80211_ATTR_KEY_IDX])
key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
- if (key_idx > 3)
+ if (key_idx > 5)
return -EINVAL;
if (info->attrs[NL80211_ATTR_MAC])
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto unlock_rtnl;
if (!drv->ops->del_key) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
+
+ unlock_rtnl:
+ rtnl_unlock();
+
return err;
}
struct beacon_parameters params;
int haveinfo = 0;
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
+ return -EINVAL;
+
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto unlock_rtnl;
+
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
switch (info->genlhdr->cmd) {
case NL80211_CMD_NEW_BEACON:
goto out;
}
- rtnl_lock();
err = call(&drv->wiphy, dev, ¶ms);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ unlock_rtnl:
+ rtnl_unlock();
+
return err;
}
int err;
struct net_device *dev;
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto unlock_rtnl;
if (!drv->ops->del_beacon) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
err = drv->ops->del_beacon(&drv->wiphy, dev);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ unlock_rtnl:
+ rtnl_unlock();
+
return err;
}
return 0;
}
+static u16 nl80211_calculate_bitrate(struct rate_info *rate)
+{
+ int modulation, streams, bitrate;
+
+ if (!(rate->flags & RATE_INFO_FLAGS_MCS))
+ return rate->legacy;
+
+ /* the formula below does only work for MCS values smaller than 32 */
+ if (rate->mcs >= 32)
+ return 0;
+
+ modulation = rate->mcs & 7;
+ streams = (rate->mcs >> 3) + 1;
+
+ bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ?
+ 13500000 : 6500000;
+
+ if (modulation < 4)
+ bitrate *= (modulation + 1);
+ else if (modulation == 4)
+ bitrate *= (modulation + 2);
+ else
+ bitrate *= (modulation + 3);
+
+ bitrate *= streams;
+
+ if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
+ bitrate = (bitrate / 9) * 10;
+
+ /* do NOT round down here */
+ return (bitrate + 50000) / 100000;
+}
+
static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
int flags, struct net_device *dev,
u8 *mac_addr, struct station_info *sinfo)
{
void *hdr;
- struct nlattr *sinfoattr;
+ struct nlattr *sinfoattr, *txrate;
+ u16 bitrate;
hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
if (!hdr)
if (sinfo->filled & STATION_INFO_PLINK_STATE)
NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
sinfo->plink_state);
+ if (sinfo->filled & STATION_INFO_SIGNAL)
+ NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
+ sinfo->signal);
+ if (sinfo->filled & STATION_INFO_TX_BITRATE) {
+ txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
+ if (!txrate)
+ goto nla_put_failure;
+
+ /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */
+ bitrate = nl80211_calculate_bitrate(&sinfo->txrate);
+ if (bitrate > 0)
+ NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
+ if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
+ NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
+ sinfo->txrate.mcs);
+ if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
+ NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
+ if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
+ NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
+
+ nla_nest_end(msg, txrate);
+ }
+ if (sinfo->filled & STATION_INFO_RX_PACKETS)
+ NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
+ sinfo->rx_packets);
+ if (sinfo->filled & STATION_INFO_TX_PACKETS)
+ NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
+ sinfo->tx_packets);
nla_nest_end(msg, sinfoattr);
return genlmsg_end(msg, hdr);
return -EINVAL;
}
- netdev = dev_get_by_index(&init_net, ifidx);
- if (!netdev)
- return -ENODEV;
+ rtnl_lock();
+
+ netdev = __dev_get_by_index(&init_net, ifidx);
+ if (!netdev) {
+ err = -ENODEV;
+ goto out_rtnl;
+ }
dev = cfg80211_get_dev_from_ifindex(ifidx);
if (IS_ERR(dev)) {
err = PTR_ERR(dev);
- goto out_put_netdev;
+ goto out_rtnl;
}
if (!dev->ops->dump_station) {
- err = -ENOSYS;
+ err = -EOPNOTSUPP;
goto out_err;
}
- rtnl_lock();
-
while (1) {
err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
mac_addr, &sinfo);
if (err == -ENOENT)
break;
if (err)
- goto out_err_rtnl;
+ goto out_err;
if (nl80211_send_station(skb,
NETLINK_CB(cb->skb).pid,
out:
cb->args[1] = sta_idx;
err = skb->len;
- out_err_rtnl:
- rtnl_unlock();
out_err:
cfg80211_put_dev(dev);
- out_put_netdev:
- dev_put(netdev);
+ out_rtnl:
+ rtnl_unlock();
return err;
}
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
if (!drv->ops->get_station) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
- rtnl_unlock();
-
if (err)
goto out;
out_free:
nlmsg_free(msg);
-
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
params.plink_action =
nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
if (err)
goto out;
}
- rtnl_lock();
err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms);
- rtnl_unlock();
out:
if (params.vlan)
dev_put(params.vlan);
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
¶ms.station_flags))
return -EINVAL;
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
if (err)
goto out;
}
- rtnl_lock();
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms);
- rtnl_unlock();
out:
if (params.vlan)
dev_put(params.vlan);
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
if (info->attrs[NL80211_ATTR_MAC])
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
if (!drv->ops->del_station) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
return -EINVAL;
}
- netdev = dev_get_by_index(&init_net, ifidx);
- if (!netdev)
- return -ENODEV;
+ rtnl_lock();
+
+ netdev = __dev_get_by_index(&init_net, ifidx);
+ if (!netdev) {
+ err = -ENODEV;
+ goto out_rtnl;
+ }
dev = cfg80211_get_dev_from_ifindex(ifidx);
if (IS_ERR(dev)) {
err = PTR_ERR(dev);
- goto out_put_netdev;
+ goto out_rtnl;
}
if (!dev->ops->dump_mpath) {
- err = -ENOSYS;
+ err = -EOPNOTSUPP;
goto out_err;
}
- rtnl_lock();
+ if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
while (1) {
err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
if (err == -ENOENT)
break;
if (err)
- goto out_err_rtnl;
+ goto out_err;
if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq, NLM_F_MULTI,
out:
cb->args[1] = path_idx;
err = skb->len;
- out_err_rtnl:
- rtnl_unlock();
out_err:
cfg80211_put_dev(dev);
- out_put_netdev:
- dev_put(netdev);
+ out_rtnl:
+ rtnl_unlock();
return err;
}
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
if (!drv->ops->get_mpath) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
- err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
- rtnl_unlock();
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+ err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
if (err)
goto out;
out_free:
nlmsg_free(msg);
-
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
if (!drv->ops->change_mpath) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
if (!drv->ops->add_mpath) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
if (info->attrs[NL80211_ATTR_MAC])
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
if (!drv->ops->del_mpath) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
}
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
if (!drv->ops->change_bss) {
err = -EOPNOTSUPP;
goto out;
}
- rtnl_lock();
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms);
- rtnl_unlock();
out:
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
int r;
char *data = NULL;
+ /*
+ * You should only get this when cfg80211 hasn't yet initialized
+ * completely when built-in to the kernel right between the time
+ * window between nl80211_init() and regulatory_init(), if that is
+ * even possible.
+ */
+ mutex_lock(&cfg80211_mutex);
+ if (unlikely(!cfg80211_regdomain)) {
+ mutex_unlock(&cfg80211_mutex);
+ return -EINPROGRESS;
+ }
+ mutex_unlock(&cfg80211_mutex);
+
if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
return -EINVAL;
if (is_world_regdom(data))
return -EINVAL;
#endif
- mutex_lock(&cfg80211_drv_mutex);
- r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, 0, ENVIRON_ANY);
- mutex_unlock(&cfg80211_drv_mutex);
+
+ r = regulatory_hint_user(data);
+
return r;
}
struct nlattr *pinfoattr;
struct sk_buff *msg;
+ rtnl_lock();
+
/* Look up our device */
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
+
+ if (!drv->ops->get_mesh_params) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
/* Get the mesh params */
- rtnl_lock();
err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
- rtnl_unlock();
if (err)
goto out;
err = genlmsg_unicast(msg, info->snd_pid);
goto out;
-nla_put_failure:
+ nla_put_failure:
genlmsg_cancel(msg, hdr);
err = -EMSGSIZE;
-out:
+ out:
/* Cleanup */
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
parent_attr, nl80211_meshconf_params_policy))
return -EINVAL;
+ rtnl_lock();
+
err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
if (err)
- return err;
+ goto out_rtnl;
+
+ if (!drv->ops->set_mesh_params) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
/* This makes sure that there aren't more than 32 mesh config
* parameters (otherwise our bitfield scheme would not work.) */
nla_get_u16);
/* Apply changes */
- rtnl_lock();
err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
- rtnl_unlock();
+ out:
/* cleanup */
cfg80211_put_dev(drv);
dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
return err;
}
#undef FILL_IN_MESH_PARAM_IF_SET
+static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *msg;
+ void *hdr = NULL;
+ struct nlattr *nl_reg_rules;
+ unsigned int i;
+ int err = -EINVAL;
+
+ mutex_lock(&cfg80211_mutex);
+
+ if (!cfg80211_regdomain)
+ goto out;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg) {
+ err = -ENOBUFS;
+ goto out;
+ }
+
+ hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+ NL80211_CMD_GET_REG);
+ if (!hdr)
+ goto nla_put_failure;
+
+ NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
+ cfg80211_regdomain->alpha2);
+
+ nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
+ if (!nl_reg_rules)
+ goto nla_put_failure;
+
+ for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
+ struct nlattr *nl_reg_rule;
+ const struct ieee80211_reg_rule *reg_rule;
+ const struct ieee80211_freq_range *freq_range;
+ const struct ieee80211_power_rule *power_rule;
+
+ reg_rule = &cfg80211_regdomain->reg_rules[i];
+ freq_range = ®_rule->freq_range;
+ power_rule = ®_rule->power_rule;
+
+ nl_reg_rule = nla_nest_start(msg, i);
+ if (!nl_reg_rule)
+ goto nla_put_failure;
+
+ NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
+ reg_rule->flags);
+ NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
+ freq_range->start_freq_khz);
+ NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
+ freq_range->end_freq_khz);
+ NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
+ freq_range->max_bandwidth_khz);
+ NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
+ power_rule->max_antenna_gain);
+ NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
+ power_rule->max_eirp);
+
+ nla_nest_end(msg, nl_reg_rule);
+ }
+
+ nla_nest_end(msg, nl_reg_rules);
+
+ genlmsg_end(msg, hdr);
+ err = genlmsg_unicast(msg, info->snd_pid);
+ goto out;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ err = -EMSGSIZE;
+out:
+ mutex_unlock(&cfg80211_mutex);
+ return err;
+}
+
static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
{
struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
BUG_ON(rule_idx != num_rules);
- mutex_lock(&cfg80211_drv_mutex);
+ mutex_lock(&cfg80211_mutex);
r = set_regdom(rd);
- mutex_unlock(&cfg80211_drv_mutex);
+ mutex_unlock(&cfg80211_mutex);
return r;
bad_reg:
return -EINVAL;
}
-static struct genl_ops nl80211_ops[] = {
- {
- .cmd = NL80211_CMD_GET_WIPHY,
- .doit = nl80211_get_wiphy,
- .dumpit = nl80211_dump_wiphy,
- .policy = nl80211_policy,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = NL80211_CMD_SET_WIPHY,
- .doit = nl80211_set_wiphy,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_GET_INTERFACE,
- .doit = nl80211_get_interface,
- .dumpit = nl80211_dump_interface,
- .policy = nl80211_policy,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = NL80211_CMD_SET_INTERFACE,
- .doit = nl80211_set_interface,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_NEW_INTERFACE,
- .doit = nl80211_new_interface,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_INTERFACE,
- .doit = nl80211_del_interface,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_GET_KEY,
- .doit = nl80211_get_key,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_SET_KEY,
- .doit = nl80211_set_key,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_NEW_KEY,
- .doit = nl80211_new_key,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_KEY,
- .doit = nl80211_del_key,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_SET_BEACON,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- .doit = nl80211_addset_beacon,
- },
- {
- .cmd = NL80211_CMD_NEW_BEACON,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- .doit = nl80211_addset_beacon,
- },
- {
- .cmd = NL80211_CMD_DEL_BEACON,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- .doit = nl80211_del_beacon,
- },
- {
- .cmd = NL80211_CMD_GET_STATION,
- .doit = nl80211_get_station,
- .dumpit = nl80211_dump_station,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_SET_STATION,
- .doit = nl80211_set_station,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_NEW_STATION,
- .doit = nl80211_new_station,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_STATION,
- .doit = nl80211_del_station,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_GET_MPATH,
- .doit = nl80211_get_mpath,
- .dumpit = nl80211_dump_mpath,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_SET_MPATH,
- .doit = nl80211_set_mpath,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_NEW_MPATH,
- .doit = nl80211_new_mpath,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_MPATH,
- .doit = nl80211_del_mpath,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_SET_BSS,
- .doit = nl80211_set_bss,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
+static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ struct net_device *dev;
+ struct cfg80211_scan_request *request;
+ struct cfg80211_ssid *ssid;
+ struct ieee80211_channel *channel;
+ struct nlattr *attr;
+ struct wiphy *wiphy;
+ int err, tmp, n_ssids = 0, n_channels = 0, i;
+ enum ieee80211_band band;
+ size_t ie_len;
+
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ rtnl_lock();
+
+ err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+ if (err)
+ goto out_rtnl;
+
+ wiphy = &drv->wiphy;
+
+ if (!drv->ops->scan) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
+ if (drv->scan_req) {
+ err = -EBUSY;
+ goto out;
+ }
+
+ if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
+ nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp)
+ n_channels++;
+ if (!n_channels) {
+ err = -EINVAL;
+ goto out;
+ }
+ } else {
+ for (band = 0; band < IEEE80211_NUM_BANDS; band++)
+ if (wiphy->bands[band])
+ n_channels += wiphy->bands[band]->n_channels;
+ }
+
+ if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
+ nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
+ n_ssids++;
+
+ if (n_ssids > wiphy->max_scan_ssids) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (info->attrs[NL80211_ATTR_IE])
+ ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ else
+ ie_len = 0;
+
+ if (ie_len > wiphy->max_scan_ie_len) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ request = kzalloc(sizeof(*request)
+ + sizeof(*ssid) * n_ssids
+ + sizeof(channel) * n_channels
+ + ie_len, GFP_KERNEL);
+ if (!request) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ request->channels = (void *)((char *)request + sizeof(*request));
+ request->n_channels = n_channels;
+ if (n_ssids)
+ request->ssids = (void *)(request->channels + n_channels);
+ request->n_ssids = n_ssids;
+ if (ie_len) {
+ if (request->ssids)
+ request->ie = (void *)(request->ssids + n_ssids);
+ else
+ request->ie = (void *)(request->channels + n_channels);
+ }
+
+ if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
+ /* user specified, bail out if channel not found */
+ request->n_channels = n_channels;
+ i = 0;
+ nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
+ request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr));
+ if (!request->channels[i]) {
+ err = -EINVAL;
+ goto out_free;
+ }
+ i++;
+ }
+ } else {
+ /* all channels */
+ i = 0;
+ for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+ int j;
+ if (!wiphy->bands[band])
+ continue;
+ for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
+ request->channels[i] = &wiphy->bands[band]->channels[j];
+ i++;
+ }
+ }
+ }
+
+ i = 0;
+ if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
+ nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
+ if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
+ err = -EINVAL;
+ goto out_free;
+ }
+ memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
+ request->ssids[i].ssid_len = nla_len(attr);
+ i++;
+ }
+ }
+
+ if (info->attrs[NL80211_ATTR_IE]) {
+ request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ memcpy((void *)request->ie,
+ nla_data(info->attrs[NL80211_ATTR_IE]),
+ request->ie_len);
+ }
+
+ request->ifidx = dev->ifindex;
+ request->wiphy = &drv->wiphy;
+
+ drv->scan_req = request;
+ err = drv->ops->scan(&drv->wiphy, dev, request);
+
+ out_free:
+ if (err) {
+ drv->scan_req = NULL;
+ kfree(request);
+ }
+ out:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+ out_rtnl:
+ rtnl_unlock();
+
+ return err;
+}
+
+static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+ struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct cfg80211_bss *res)
+{
+ void *hdr;
+ struct nlattr *bss;
+
+ hdr = nl80211hdr_put(msg, pid, seq, flags,
+ NL80211_CMD_NEW_SCAN_RESULTS);
+ if (!hdr)
+ return -1;
+
+ NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION,
+ rdev->bss_generation);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+
+ bss = nla_nest_start(msg, NL80211_ATTR_BSS);
+ if (!bss)
+ goto nla_put_failure;
+ if (!is_zero_ether_addr(res->bssid))
+ NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
+ if (res->information_elements && res->len_information_elements)
+ NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
+ res->len_information_elements,
+ res->information_elements);
+ if (res->tsf)
+ NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
+ if (res->beacon_interval)
+ NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
+ NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
+ NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
+
+ switch (rdev->wiphy.signal_type) {
+ case CFG80211_SIGNAL_TYPE_MBM:
+ NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
+ break;
+ case CFG80211_SIGNAL_TYPE_UNSPEC:
+ NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
+ break;
+ default:
+ break;
+ }
+
+ nla_nest_end(msg, bss);
+
+ return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int nl80211_dump_scan(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ struct cfg80211_registered_device *dev;
+ struct net_device *netdev;
+ struct cfg80211_internal_bss *scan;
+ int ifidx = cb->args[0];
+ int start = cb->args[1], idx = 0;
+ int err;
+
+ if (!ifidx) {
+ err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
+ nl80211_fam.attrbuf, nl80211_fam.maxattr,
+ nl80211_policy);
+ if (err)
+ return err;
+
+ if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
+ return -EINVAL;
+
+ ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
+ if (!ifidx)
+ return -EINVAL;
+ cb->args[0] = ifidx;
+ }
+
+ netdev = dev_get_by_index(&init_net, ifidx);
+ if (!netdev)
+ return -ENODEV;
+
+ dev = cfg80211_get_dev_from_ifindex(ifidx);
+ if (IS_ERR(dev)) {
+ err = PTR_ERR(dev);
+ goto out_put_netdev;
+ }
+
+ spin_lock_bh(&dev->bss_lock);
+ cfg80211_bss_expire(dev);
+
+ list_for_each_entry(scan, &dev->bss_list, list) {
+ if (++idx <= start)
+ continue;
+ if (nl80211_send_bss(skb,
+ NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ dev, netdev, &scan->pub) < 0) {
+ idx--;
+ goto out;
+ }
+ }
+
+ out:
+ spin_unlock_bh(&dev->bss_lock);
+
+ cb->args[1] = idx;
+ err = skb->len;
+ cfg80211_put_dev(dev);
+ out_put_netdev:
+ dev_put(netdev);
+
+ return err;
+}
+
+static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
+{
+ return auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM ||
+ auth_type == NL80211_AUTHTYPE_SHARED_KEY ||
+ auth_type == NL80211_AUTHTYPE_FT ||
+ auth_type == NL80211_AUTHTYPE_NETWORK_EAP;
+}
+
+static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ struct net_device *dev;
+ struct cfg80211_auth_request req;
+ struct wiphy *wiphy;
+ int err;
+
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_MAC])
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
+ return -EINVAL;
+
+ rtnl_lock();
+
+ err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+ if (err)
+ goto unlock_rtnl;
+
+ if (!drv->ops->auth) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
+ wiphy = &drv->wiphy;
+ memset(&req, 0, sizeof(req));
+
+ req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+ if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
+ req.chan = ieee80211_get_channel(
+ wiphy,
+ nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
+ if (!req.chan) {
+ err = -EINVAL;
+ goto out;
+ }
+ }
+
+ if (info->attrs[NL80211_ATTR_SSID]) {
+ req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
+ req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
+ }
+
+ if (info->attrs[NL80211_ATTR_IE]) {
+ req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+ req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ }
+
+ req.auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
+ if (!nl80211_valid_auth_type(req.auth_type)) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ err = drv->ops->auth(&drv->wiphy, dev, &req);
+
+out:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+unlock_rtnl:
+ rtnl_unlock();
+ return err;
+}
+
+static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ struct net_device *dev;
+ struct cfg80211_assoc_request req;
+ struct wiphy *wiphy;
+ int err;
+
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_MAC] ||
+ !info->attrs[NL80211_ATTR_SSID])
+ return -EINVAL;
+
+ rtnl_lock();
+
+ err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+ if (err)
+ goto unlock_rtnl;
+
+ if (!drv->ops->assoc) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
+ wiphy = &drv->wiphy;
+ memset(&req, 0, sizeof(req));
+
+ req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+ if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
+ req.chan = ieee80211_get_channel(
+ wiphy,
+ nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
+ if (!req.chan) {
+ err = -EINVAL;
+ goto out;
+ }
+ }
+
+ req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
+ req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
+
+ if (info->attrs[NL80211_ATTR_IE]) {
+ req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+ req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ }
+
+ err = drv->ops->assoc(&drv->wiphy, dev, &req);
+
+out:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+unlock_rtnl:
+ rtnl_unlock();
+ return err;
+}
+
+static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ struct net_device *dev;
+ struct cfg80211_deauth_request req;
+ struct wiphy *wiphy;
+ int err;
+
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_MAC])
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_REASON_CODE])
+ return -EINVAL;
+
+ rtnl_lock();
+
+ err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+ if (err)
+ goto unlock_rtnl;
+
+ if (!drv->ops->deauth) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
+ wiphy = &drv->wiphy;
+ memset(&req, 0, sizeof(req));
+
+ req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+ req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
+ if (req.reason_code == 0) {
+ /* Reason Code 0 is reserved */
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (info->attrs[NL80211_ATTR_IE]) {
+ req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+ req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ }
+
+ err = drv->ops->deauth(&drv->wiphy, dev, &req);
+
+out:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+unlock_rtnl:
+ rtnl_unlock();
+ return err;
+}
+
+static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ struct net_device *dev;
+ struct cfg80211_disassoc_request req;
+ struct wiphy *wiphy;
+ int err;
+
+ if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_MAC])
+ return -EINVAL;
+
+ if (!info->attrs[NL80211_ATTR_REASON_CODE])
+ return -EINVAL;
+
+ rtnl_lock();
+
+ err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
+ if (err)
+ goto unlock_rtnl;
+
+ if (!drv->ops->disassoc) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!netif_running(dev)) {
+ err = -ENETDOWN;
+ goto out;
+ }
+
+ wiphy = &drv->wiphy;
+ memset(&req, 0, sizeof(req));
+
+ req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+ req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
+ if (req.reason_code == 0) {
+ /* Reason Code 0 is reserved */
+ err = -EINVAL;
+ goto out;
+ }
+
+ if (info->attrs[NL80211_ATTR_IE]) {
+ req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+ req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ }
+
+ err = drv->ops->disassoc(&drv->wiphy, dev, &req);
+
+out:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+unlock_rtnl:
+ rtnl_unlock();
+ return err;
+}
+
+static struct genl_ops nl80211_ops[] = {
+ {
+ .cmd = NL80211_CMD_GET_WIPHY,
+ .doit = nl80211_get_wiphy,
+ .dumpit = nl80211_dump_wiphy,
+ .policy = nl80211_policy,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = NL80211_CMD_SET_WIPHY,
+ .doit = nl80211_set_wiphy,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_GET_INTERFACE,
+ .doit = nl80211_get_interface,
+ .dumpit = nl80211_dump_interface,
+ .policy = nl80211_policy,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = NL80211_CMD_SET_INTERFACE,
+ .doit = nl80211_set_interface,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_NEW_INTERFACE,
+ .doit = nl80211_new_interface,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_DEL_INTERFACE,
+ .doit = nl80211_del_interface,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_GET_KEY,
+ .doit = nl80211_get_key,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_SET_KEY,
+ .doit = nl80211_set_key,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_NEW_KEY,
+ .doit = nl80211_new_key,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_DEL_KEY,
+ .doit = nl80211_del_key,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_SET_BEACON,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .doit = nl80211_addset_beacon,
+ },
+ {
+ .cmd = NL80211_CMD_NEW_BEACON,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .doit = nl80211_addset_beacon,
+ },
+ {
+ .cmd = NL80211_CMD_DEL_BEACON,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .doit = nl80211_del_beacon,
+ },
+ {
+ .cmd = NL80211_CMD_GET_STATION,
+ .doit = nl80211_get_station,
+ .dumpit = nl80211_dump_station,
+ .policy = nl80211_policy,
+ },
+ {
+ .cmd = NL80211_CMD_SET_STATION,
+ .doit = nl80211_set_station,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_NEW_STATION,
+ .doit = nl80211_new_station,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_DEL_STATION,
+ .doit = nl80211_del_station,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_GET_MPATH,
+ .doit = nl80211_get_mpath,
+ .dumpit = nl80211_dump_mpath,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_SET_MPATH,
+ .doit = nl80211_set_mpath,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_NEW_MPATH,
+ .doit = nl80211_new_mpath,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_DEL_MPATH,
+ .doit = nl80211_del_mpath,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_SET_BSS,
+ .doit = nl80211_set_bss,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_GET_REG,
+ .doit = nl80211_get_reg,
+ .policy = nl80211_policy,
+ /* can be retrieved by unprivileged users */
+ },
+ {
.cmd = NL80211_CMD_SET_REG,
.doit = nl80211_set_reg,
.policy = nl80211_policy,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
+ {
+ .cmd = NL80211_CMD_TRIGGER_SCAN,
+ .doit = nl80211_trigger_scan,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_GET_SCAN,
+ .policy = nl80211_policy,
+ .dumpit = nl80211_dump_scan,
+ },
+ {
+ .cmd = NL80211_CMD_AUTHENTICATE,
+ .doit = nl80211_authenticate,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_ASSOCIATE,
+ .doit = nl80211_associate,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_DEAUTHENTICATE,
+ .doit = nl80211_deauthenticate,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_DISASSOCIATE,
+ .doit = nl80211_disassociate,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+};
+static struct genl_multicast_group nl80211_mlme_mcgrp = {
+ .name = "mlme",
};
/* multicast groups */
static struct genl_multicast_group nl80211_config_mcgrp = {
.name = "config",
};
+static struct genl_multicast_group nl80211_scan_mcgrp = {
+ .name = "scan",
+};
+static struct genl_multicast_group nl80211_regulatory_mcgrp = {
+ .name = "regulatory",
+};
/* notification functions */
genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
}
+static int nl80211_send_scan_donemsg(struct sk_buff *msg,
+ struct cfg80211_registered_device *rdev,
+ struct net_device *netdev,
+ u32 pid, u32 seq, int flags,
+ u32 cmd)
+{
+ void *hdr;
+
+ hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
+ if (!hdr)
+ return -1;
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+
+ /* XXX: we should probably bounce back the request? */
+
+ return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev)
+{
+ struct sk_buff *msg;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0,
+ NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
+}
+
+void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev)
+{
+ struct sk_buff *msg;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0,
+ NL80211_CMD_SCAN_ABORTED) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
+}
+
+/*
+ * This can happen on global regulatory changes or device specific settings
+ * based on custom world regulatory domains.
+ */
+void nl80211_send_reg_change_event(struct regulatory_request *request)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ /* Userspace can always count this one always being set */
+ NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
+
+ if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
+ NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
+ NL80211_REGDOM_TYPE_WORLD);
+ else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
+ NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
+ NL80211_REGDOM_TYPE_CUSTOM_WORLD);
+ else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
+ request->intersect)
+ NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
+ NL80211_REGDOM_TYPE_INTERSECTION);
+ else {
+ NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
+ NL80211_REGDOM_TYPE_COUNTRY);
+ NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
+ }
+
+ if (wiphy_idx_valid(request->wiphy_idx))
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL);
+
+ return;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
+static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev,
+ const u8 *buf, size_t len,
+ enum nl80211_commands cmd)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+ NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
+ return;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
+void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *buf, size_t len)
+{
+ nl80211_send_mlme_event(rdev, netdev, buf, len,
+ NL80211_CMD_AUTHENTICATE);
+}
+
+void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *buf,
+ size_t len)
+{
+ nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE);
+}
+
+void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *buf, size_t len)
+{
+ nl80211_send_mlme_event(rdev, netdev, buf, len,
+ NL80211_CMD_DEAUTHENTICATE);
+}
+
+void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *buf,
+ size_t len)
+{
+ nl80211_send_mlme_event(rdev, netdev, buf, len,
+ NL80211_CMD_DISASSOCIATE);
+}
+
+void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
+ struct net_device *netdev, const u8 *addr,
+ enum nl80211_key_type key_type, int key_id,
+ const u8 *tsc)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+ if (addr)
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
+ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
+ if (tsc)
+ NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
+ return;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
+void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
+ struct ieee80211_channel *channel_before,
+ struct ieee80211_channel *channel_after)
+{
+ struct sk_buff *msg;
+ void *hdr;
+ struct nlattr *nl_freq;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ /*
+ * Since we are applying the beacon hint to a wiphy we know its
+ * wiphy_idx is valid
+ */
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
+
+ /* Before */
+ nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
+ if (!nl_freq)
+ goto nla_put_failure;
+ if (nl80211_msg_put_channel(msg, channel_before))
+ goto nla_put_failure;
+ nla_nest_end(msg, nl_freq);
+
+ /* After */
+ nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
+ if (!nl_freq)
+ goto nla_put_failure;
+ if (nl80211_msg_put_channel(msg, channel_after))
+ goto nla_put_failure;
+ nla_nest_end(msg, nl_freq);
+
+ if (genlmsg_end(msg, hdr) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
+
+ return;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+
/* initialisation/exit functions */
int nl80211_init(void)
if (err)
goto err_out;
+ err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
+ if (err)
+ goto err_out;
+
+ err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
+ if (err)
+ goto err_out;
+
+ err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
+ if (err)
+ goto err_out;
+
return 0;
err_out:
genl_unregister_family(&nl80211_fam);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff