#include "nl80211.h"
#include "reg.h"
+static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
+ struct genl_info *info);
+static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
+ struct genl_info *info);
+
/* the netlink family */
static struct genl_family nl80211_fam = {
.id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
.version = 1, /* no particular meaning now */
.maxattr = NL80211_ATTR_MAX,
.netnsok = true,
+ .pre_doit = nl80211_pre_doit,
+ .post_doit = nl80211_post_doit,
};
/* internal helper: get rdev and dev */
static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
{
struct sk_buff *msg;
- struct cfg80211_registered_device *dev;
-
- dev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
+ struct cfg80211_registered_device *dev = info->user_ptr[0];
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
- goto out_err;
-
- if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
- goto out_free;
+ return -ENOMEM;
- cfg80211_unlock_rdev(dev);
+ if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
+ nlmsg_free(msg);
+ return -ENOBUFS;
+ }
return genlmsg_reply(msg, info);
-
- out_free:
- nlmsg_free(msg);
- out_err:
- cfg80211_unlock_rdev(dev);
- return -ENOBUFS;
}
static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *netdev;
- int result;
-
- rtnl_lock();
-
- result = get_rdev_dev_by_info_ifindex(info, &rdev, &netdev);
- if (result)
- goto unlock_rtnl;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *netdev = info->user_ptr[1];
- result = __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
-
- dev_put(netdev);
- cfg80211_unlock_rdev(rdev);
- unlock_rtnl:
- rtnl_unlock();
-
- return result;
+ return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
}
static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
u32 frag_threshold = 0, rts_threshold = 0;
u8 coverage_class = 0;
- rtnl_lock();
-
/*
* Try to find the wiphy and netdev. Normally this
* function shouldn't need the netdev, but this is
rdev = __cfg80211_rdev_from_info(info);
if (IS_ERR(rdev)) {
mutex_unlock(&cfg80211_mutex);
- result = PTR_ERR(rdev);
- goto unlock;
+ return PTR_ERR(rdev);
}
wdev = NULL;
netdev = NULL;
mutex_unlock(&rdev->mtx);
if (netdev)
dev_put(netdev);
- unlock:
- rtnl_unlock();
return result;
}
static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
{
struct sk_buff *msg;
- struct cfg80211_registered_device *dev;
- struct net_device *netdev;
- int err;
-
- err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev);
- if (err)
- return err;
+ struct cfg80211_registered_device *dev = info->user_ptr[0];
+ struct net_device *netdev = info->user_ptr[1];
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
- goto out_err;
+ return -ENOMEM;
if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
- dev, netdev) < 0)
- goto out_free;
-
- dev_put(netdev);
- cfg80211_unlock_rdev(dev);
+ dev, netdev) < 0) {
+ nlmsg_free(msg);
+ return -ENOBUFS;
+ }
return genlmsg_reply(msg, info);
-
- out_free:
- nlmsg_free(msg);
- out_err:
- dev_put(netdev);
- cfg80211_unlock_rdev(dev);
- return -ENOBUFS;
}
static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct vif_params params;
int err;
enum nl80211_iftype otype, ntype;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
u32 _flags, *flags = NULL;
bool change = false;
memset(¶ms, 0, sizeof(params));
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
otype = ntype = dev->ieee80211_ptr->iftype;
if (info->attrs[NL80211_ATTR_IFTYPE]) {
ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
if (otype != ntype)
change = true;
- if (ntype > NL80211_IFTYPE_MAX) {
- err = -EINVAL;
- goto unlock;
- }
+ if (ntype > NL80211_IFTYPE_MAX)
+ return -EINVAL;
}
if (info->attrs[NL80211_ATTR_MESH_ID]) {
- if (ntype != NL80211_IFTYPE_MESH_POINT) {
- err = -EINVAL;
- goto unlock;
- }
+ if (ntype != NL80211_IFTYPE_MESH_POINT)
+ return -EINVAL;
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;
change = true;
err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
if (err)
- goto unlock;
+ return err;
} else {
params.use_4addr = -1;
}
if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
- if (ntype != NL80211_IFTYPE_MONITOR) {
- err = -EINVAL;
- goto unlock;
- }
+ if (ntype != NL80211_IFTYPE_MONITOR)
+ return -EINVAL;
err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
&_flags);
if (err)
- goto unlock;
+ return err;
flags = &_flags;
change = true;
if (!err && params.use_4addr != -1)
dev->ieee80211_ptr->use_4addr = params.use_4addr;
- unlock:
- dev_put(dev);
- cfg80211_unlock_rdev(rdev);
- unlock_rtnl:
- rtnl_unlock();
return err;
}
static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct vif_params params;
int err;
enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
return -EINVAL;
}
- rtnl_lock();
-
- rdev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(rdev)) {
- err = PTR_ERR(rdev);
- goto unlock_rtnl;
- }
-
if (!rdev->ops->add_virtual_intf ||
- !(rdev->wiphy.interface_modes & (1 << type))) {
- err = -EOPNOTSUPP;
- goto unlock;
- }
+ !(rdev->wiphy.interface_modes & (1 << type)))
+ return -EOPNOTSUPP;
if (type == NL80211_IFTYPE_MESH_POINT &&
info->attrs[NL80211_ATTR_MESH_ID]) {
params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
if (err)
- goto unlock;
+ return err;
}
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
nla_data(info->attrs[NL80211_ATTR_IFNAME]),
type, err ? NULL : &flags, ¶ms);
- unlock:
- cfg80211_unlock_rdev(rdev);
- unlock_rtnl:
- rtnl_unlock();
return err;
}
static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
-
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->del_virtual_intf) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
- err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
+ if (!rdev->ops->del_virtual_intf)
+ return -EOPNOTSUPP;
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- unlock_rtnl:
- rtnl_unlock();
- return err;
+ return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
}
struct get_key_cookie {
static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
int err;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
u8 key_idx = 0;
u8 *mac_addr = NULL;
struct get_key_cookie cookie = {
if (info->attrs[NL80211_ATTR_MAC])
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->get_key) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->get_key)
+ return -EOPNOTSUPP;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg) {
- err = -ENOMEM;
- goto out;
- }
+ if (!msg)
+ return -ENOMEM;
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_NEW_KEY);
-
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
- goto free_msg;
- }
+ if (IS_ERR(hdr))
+ return PTR_ERR(hdr);
cookie.msg = msg;
cookie.idx = key_idx;
goto nla_put_failure;
genlmsg_end(msg, hdr);
- err = genlmsg_reply(msg, info);
- goto out;
+ return genlmsg_reply(msg, info);
nla_put_failure:
err = -ENOBUFS;
free_msg:
nlmsg_free(msg);
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- unlock_rtnl:
- rtnl_unlock();
-
return err;
}
static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct key_parse key;
int err;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
int (*func)(struct wiphy *wiphy, struct net_device *netdev,
u8 key_index);
if (!key.def && !key.defmgmt)
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
if (key.def)
func = rdev->ops->set_default_key;
else
func = rdev->ops->set_default_mgmt_key;
- if (!func) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!func)
+ return -EOPNOTSUPP;
wdev_lock(dev->ieee80211_ptr);
err = nl80211_key_allowed(dev->ieee80211_ptr);
#endif
wdev_unlock(dev->ieee80211_ptr);
- out:
- cfg80211_unlock_rdev(rdev);
- 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 *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
int err;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
struct key_parse key;
u8 *mac_addr = NULL;
if (info->attrs[NL80211_ATTR_MAC])
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->add_key) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->add_key)
+ return -EOPNOTSUPP;
- if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) {
- err = -EINVAL;
- goto out;
- }
+ if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr))
+ return -EINVAL;
wdev_lock(dev->ieee80211_ptr);
err = nl80211_key_allowed(dev->ieee80211_ptr);
mac_addr, &key.p);
wdev_unlock(dev->ieee80211_ptr);
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- unlock_rtnl:
- rtnl_unlock();
-
return err;
}
static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
int err;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
u8 *mac_addr = NULL;
struct key_parse key;
if (info->attrs[NL80211_ATTR_MAC])
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->del_key) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->del_key)
+ return -EOPNOTSUPP;
wdev_lock(dev->ieee80211_ptr);
err = nl80211_key_allowed(dev->ieee80211_ptr);
#endif
wdev_unlock(dev->ieee80211_ptr);
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-
- unlock_rtnl:
- rtnl_unlock();
-
return err;
}
{
int (*call)(struct wiphy *wiphy, struct net_device *dev,
struct beacon_parameters *info);
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct beacon_parameters params;
int haveinfo = 0;
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+ return -EOPNOTSUPP;
switch (info->genlhdr->cmd) {
case NL80211_CMD_NEW_BEACON:
/* these are required for NEW_BEACON */
if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
!info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
- !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
- err = -EINVAL;
- goto out;
- }
+ !info->attrs[NL80211_ATTR_BEACON_HEAD])
+ return -EINVAL;
call = rdev->ops->add_beacon;
break;
break;
default:
WARN_ON(1);
- err = -EOPNOTSUPP;
- goto out;
+ return -EOPNOTSUPP;
}
- if (!call) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!call)
+ return -EOPNOTSUPP;
memset(¶ms, 0, sizeof(params));
haveinfo = 1;
}
- if (!haveinfo) {
- err = -EINVAL;
- goto out;
- }
-
- err = call(&rdev->wiphy, dev, ¶ms);
-
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- unlock_rtnl:
- rtnl_unlock();
+ if (!haveinfo)
+ return -EINVAL;
- return err;
+ return call(&rdev->wiphy, dev, ¶ms);
}
static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
-
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
- if (!rdev->ops->del_beacon) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->del_beacon)
+ return -EOPNOTSUPP;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
- err = -EOPNOTSUPP;
- goto out;
- }
- err = rdev->ops->del_beacon(&rdev->wiphy, dev);
-
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- unlock_rtnl:
- rtnl_unlock();
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+ return -EOPNOTSUPP;
- return err;
+ return rdev->ops->del_beacon(&rdev->wiphy, dev);
}
static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct station_info sinfo;
struct sk_buff *msg;
u8 *mac_addr = NULL;
+ int err;
memset(&sinfo, 0, sizeof(sinfo));
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- rtnl_lock();
+ if (!rdev->ops->get_station)
+ return -EOPNOTSUPP;
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
+ err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
if (err)
- goto out_rtnl;
-
- if (!rdev->ops->get_station) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
- if (err)
- goto out;
+ return err;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
- goto out;
+ return -ENOMEM;
if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
- dev, mac_addr, &sinfo) < 0)
- goto out_free;
-
- err = genlmsg_reply(msg, info);
- goto out;
-
- out_free:
- nlmsg_free(msg);
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
+ dev, mac_addr, &sinfo) < 0) {
+ nlmsg_free(msg);
+ return -ENOBUFS;
+ }
- return err;
+ return genlmsg_reply(msg, info);
}
/*
static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
int err;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
struct station_parameters params;
u8 *mac_addr = NULL;
params.plink_action =
nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
err = get_vlan(info, rdev, ¶ms.vlan);
if (err)
goto out;
out:
if (params.vlan)
dev_put(params.vlan);
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
return err;
}
static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
int err;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
struct station_parameters params;
u8 *mac_addr = NULL;
if (parse_station_flags(info, ¶ms))
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
- err = -EINVAL;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+ return -EINVAL;
err = get_vlan(info, rdev, ¶ms.vlan);
if (err)
out:
if (params.vlan)
dev_put(params.vlan);
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
-
return err;
}
static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
u8 *mac_addr = NULL;
if (info->attrs[NL80211_ATTR_MAC])
mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
- err = -EINVAL;
- goto out;
- }
-
- if (!rdev->ops->del_station) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+ return -EINVAL;
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
+ if (!rdev->ops->del_station)
+ return -EOPNOTSUPP;
- return err;
+ return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
}
static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
int err;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
struct mpath_info pinfo;
struct sk_buff *msg;
u8 *dst = NULL;
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
- if (!rdev->ops->get_mpath) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->get_mpath)
+ return -EOPNOTSUPP;
- if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
+ return -EOPNOTSUPP;
err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
if (err)
- goto out;
+ return err;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg)
- goto out;
+ return -ENOMEM;
if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
- dev, dst, next_hop, &pinfo) < 0)
- goto out_free;
-
- err = genlmsg_reply(msg, info);
- goto out;
-
- out_free:
- nlmsg_free(msg);
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
+ dev, dst, next_hop, &pinfo) < 0) {
+ nlmsg_free(msg);
+ return -ENOBUFS;
+ }
- return err;
+ return genlmsg_reply(msg, info);
}
static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
u8 *dst = NULL;
u8 *next_hop = NULL;
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
- if (!rdev->ops->change_mpath) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!rdev->ops->change_mpath)
+ return -EOPNOTSUPP;
- err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
+ return -EOPNOTSUPP;
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
+ if (!netif_running(dev))
+ return -ENETDOWN;
- return err;
+ return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
}
+
static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
u8 *dst = NULL;
u8 *next_hop = NULL;
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
- if (!rdev->ops->add_mpath) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!rdev->ops->add_mpath)
+ return -EOPNOTSUPP;
- err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
+ return -EOPNOTSUPP;
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
+ if (!netif_running(dev))
+ return -ENETDOWN;
- return err;
+ return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
}
static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
u8 *dst = NULL;
if (info->attrs[NL80211_ATTR_MAC])
dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
- if (!rdev->ops->del_mpath) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
-
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
+ if (!rdev->ops->del_mpath)
+ return -EOPNOTSUPP;
- return err;
+ return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
}
static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct bss_parameters params;
memset(¶ms, 0, sizeof(params));
if (info->attrs[NL80211_ATTR_AP_ISOLATE])
params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
- if (!rdev->ops->change_bss) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->change_bss)
+ return -EOPNOTSUPP;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
-
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+ return -EOPNOTSUPP;
- return err;
+ return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
}
static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
static int nl80211_get_mesh_params(struct sk_buff *skb,
struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct mesh_config cur_params;
int err;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
void *hdr;
struct nlattr *pinfoattr;
struct sk_buff *msg;
- rtnl_lock();
-
- /* Look up our device */
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
- if (!rdev->ops->get_mesh_params) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->get_mesh_params)
+ return -EOPNOTSUPP;
/* Get the mesh params */
err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
if (err)
- goto out;
+ return err;
/* Draw up a netlink message to send back */
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg) {
- err = -ENOBUFS;
- goto out;
- }
+ if (!msg)
+ return -ENOMEM;
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_GET_MESH_PARAMS);
if (!hdr)
cur_params.dot11MeshHWMPRootMode);
nla_nest_end(msg, pinfoattr);
genlmsg_end(msg, hdr);
- err = genlmsg_reply(msg, info);
- goto out;
+ return genlmsg_reply(msg, info);
nla_put_failure:
genlmsg_cancel(msg, hdr);
nlmsg_free(msg);
- err = -EMSGSIZE;
- out:
- /* Cleanup */
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
-
- return err;
-}
+ return -ENOBUFS;
+}
#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
do {\
static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
{
- int err;
u32 mask;
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct mesh_config cfg;
struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
struct nlattr *parent_attr;
parent_attr, nl80211_meshconf_params_policy))
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
- if (!rdev->ops->set_mesh_params) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->set_mesh_params)
+ return -EOPNOTSUPP;
/* This makes sure that there aren't more than 32 mesh config
* parameters (otherwise our bitfield scheme would not work.) */
nla_get_u8);
/* Apply changes */
- err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
-
- out:
- /* cleanup */
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
-
- return err;
+ return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
}
#undef FILL_IN_MESH_PARAM_IF_SET
static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct cfg80211_scan_request *request;
struct cfg80211_ssid *ssid;
struct ieee80211_channel *channel;
if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
wiphy = &rdev->wiphy;
- if (!rdev->ops->scan) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->scan)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
- if (rdev->scan_req) {
- err = -EBUSY;
- goto out;
- }
+ if (rdev->scan_req)
+ return -EBUSY;
if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
n_channels = validate_scan_freqs(
info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
- if (!n_channels) {
- err = -EINVAL;
- goto out;
- }
+ if (!n_channels)
+ return -EINVAL;
} else {
n_channels = 0;
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 (n_ssids > wiphy->max_scan_ssids)
+ return -EINVAL;
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;
- }
+ if (ie_len > wiphy->max_scan_ie_len)
+ return -EINVAL;
request = kzalloc(sizeof(*request)
+ sizeof(*ssid) * n_ssids
+ sizeof(channel) * n_channels
+ ie_len, GFP_KERNEL);
- if (!request) {
- err = -ENOMEM;
- goto out;
- }
+ if (!request)
+ return -ENOMEM;
if (n_ssids)
request->ssids = (void *)&request->channels[n_channels];
if (!err) {
nl80211_send_scan_start(rdev, dev);
dev_hold(dev);
- }
-
+ } else {
out_free:
- if (err) {
rdev->scan_req = NULL;
kfree(request);
}
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
return err;
}
static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct ieee80211_channel *chan;
const u8 *bssid, *ssid, *ie = NULL;
int err, ssid_len, ie_len = 0;
key.p.key = NULL;
}
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
if (key.idx >= 0) {
int i;
bool ok = false;
break;
}
}
- if (!ok) {
- err = -EINVAL;
- goto out;
- }
+ if (!ok)
+ return -EINVAL;
}
- if (!rdev->ops->auth) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->auth)
+ return -EOPNOTSUPP;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
chan = ieee80211_get_channel(&rdev->wiphy,
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
- if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
- err = -EINVAL;
- goto out;
- }
+ if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
+ return -EINVAL;
ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
}
auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
- if (!nl80211_valid_auth_type(auth_type)) {
- err = -EINVAL;
- goto out;
- }
+ if (!nl80211_valid_auth_type(auth_type))
+ return -EINVAL;
local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
- err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
- ssid, ssid_len, ie, ie_len,
- key.p.key, key.p.key_len, key.idx,
- local_state_change);
-
-out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-unlock_rtnl:
- rtnl_unlock();
- return err;
+ return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
+ ssid, ssid_len, ie, ie_len,
+ key.p.key, key.p.key_len, key.idx,
+ local_state_change);
}
static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct cfg80211_crypto_settings crypto;
struct ieee80211_channel *chan;
const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
!info->attrs[NL80211_ATTR_WIPHY_FREQ])
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->assoc) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->assoc)
+ return -EOPNOTSUPP;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
chan = ieee80211_get_channel(&rdev->wiphy,
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
- if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
- err = -EINVAL;
- goto out;
- }
+ if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
+ return -EINVAL;
ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
if (mfp == NL80211_MFP_REQUIRED)
use_mfp = true;
- else if (mfp != NL80211_MFP_NO) {
- err = -EINVAL;
- goto out;
- }
+ else if (mfp != NL80211_MFP_NO)
+ return -EINVAL;
}
if (info->attrs[NL80211_ATTR_PREV_BSSID])
ssid, ssid_len, ie, ie_len, use_mfp,
&crypto);
-out:
- cfg80211_unlock_rdev(rdev);
- 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 *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
const u8 *ie = NULL, *bssid;
- int err, ie_len = 0;
+ int ie_len = 0;
u16 reason_code;
bool local_state_change;
if (!info->attrs[NL80211_ATTR_REASON_CODE])
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->deauth) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->deauth)
+ return -EOPNOTSUPP;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
if (reason_code == 0) {
/* Reason Code 0 is reserved */
- err = -EINVAL;
- goto out;
+ return -EINVAL;
}
if (info->attrs[NL80211_ATTR_IE]) {
local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
- err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
- local_state_change);
-
-out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-unlock_rtnl:
- rtnl_unlock();
- return err;
+ return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
+ local_state_change);
}
static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
const u8 *ie = NULL, *bssid;
- int err, ie_len = 0;
+ int ie_len = 0;
u16 reason_code;
bool local_state_change;
if (!info->attrs[NL80211_ATTR_REASON_CODE])
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->disassoc) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->disassoc)
+ return -EOPNOTSUPP;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
if (reason_code == 0) {
/* Reason Code 0 is reserved */
- err = -EINVAL;
- goto out;
+ return -EINVAL;
}
if (info->attrs[NL80211_ATTR_IE]) {
local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
- err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
- local_state_change);
-
-out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-unlock_rtnl:
- rtnl_unlock();
- return err;
+ return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
+ local_state_change);
}
static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct cfg80211_ibss_params ibss;
struct wiphy *wiphy;
struct cfg80211_cached_keys *connkeys = NULL;
return -EINVAL;
}
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->join_ibss) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->join_ibss)
+ return -EOPNOTSUPP;
- if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
wiphy = &rdev->wiphy;
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
if (!ibss.channel ||
ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
- ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
- err = -EINVAL;
- goto out;
- }
+ ibss.channel->flags & IEEE80211_CHAN_DISABLED)
+ return -EINVAL;
ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
- if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
- connkeys = nl80211_parse_connkeys(rdev,
- info->attrs[NL80211_ATTR_KEYS]);
- if (IS_ERR(connkeys)) {
- err = PTR_ERR(connkeys);
- connkeys = NULL;
- goto out;
- }
- }
-
if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
u8 *rates =
nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
wiphy->bands[ibss.channel->band];
int i, j;
- if (n_rates == 0) {
- err = -EINVAL;
- goto out;
- }
+ if (n_rates == 0)
+ return -EINVAL;
for (i = 0; i < n_rates; i++) {
int rate = (rates[i] & 0x7f) * 5;
break;
}
}
- if (!found) {
- err = -EINVAL;
- goto out;
- }
+ if (!found)
+ return -EINVAL;
}
}
- err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
+ if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
+ connkeys = nl80211_parse_connkeys(rdev,
+ info->attrs[NL80211_ATTR_KEYS]);
+ if (IS_ERR(connkeys))
+ return PTR_ERR(connkeys);
+ }
-out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-unlock_rtnl:
+ err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
if (err)
kfree(connkeys);
- rtnl_unlock();
return err;
}
static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
- int err;
-
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
- if (!rdev->ops->leave_ibss) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->leave_ibss)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
+ return -EOPNOTSUPP;
- err = cfg80211_leave_ibss(rdev, dev, false);
+ if (!netif_running(dev))
+ return -ENETDOWN;
-out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-unlock_rtnl:
- rtnl_unlock();
- return err;
+ return cfg80211_leave_ibss(rdev, dev, false);
}
#ifdef CONFIG_NL80211_TESTMODE
static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
int err;
if (!info->attrs[NL80211_ATTR_TESTDATA])
return -EINVAL;
- rtnl_lock();
-
- rdev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(rdev)) {
- err = PTR_ERR(rdev);
- goto unlock_rtnl;
- }
-
err = -EOPNOTSUPP;
if (rdev->ops->testmode_cmd) {
rdev->testmode_info = info;
rdev->testmode_info = NULL;
}
- cfg80211_unlock_rdev(rdev);
-
- unlock_rtnl:
- rtnl_unlock();
return err;
}
static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct cfg80211_connect_params connect;
struct wiphy *wiphy;
struct cfg80211_cached_keys *connkeys = NULL;
NL80211_MAX_NR_CIPHER_SUITES);
if (err)
return err;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
wiphy = &rdev->wiphy;
ieee80211_get_channel(wiphy,
nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
if (!connect.channel ||
- connect.channel->flags & IEEE80211_CHAN_DISABLED) {
- err = -EINVAL;
- goto out;
- }
+ connect.channel->flags & IEEE80211_CHAN_DISABLED)
+ return -EINVAL;
}
if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
connkeys = nl80211_parse_connkeys(rdev,
info->attrs[NL80211_ATTR_KEYS]);
- if (IS_ERR(connkeys)) {
- err = PTR_ERR(connkeys);
- connkeys = NULL;
- goto out;
- }
+ if (IS_ERR(connkeys))
+ return PTR_ERR(connkeys);
}
err = cfg80211_connect(rdev, dev, &connect, connkeys);
-
-out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-unlock_rtnl:
if (err)
kfree(connkeys);
- rtnl_unlock();
return err;
}
static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
- int err;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
u16 reason;
if (!info->attrs[NL80211_ATTR_REASON_CODE])
if (reason == 0)
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
- err = cfg80211_disconnect(rdev, dev, reason, true);
+ if (!netif_running(dev))
+ return -ENETDOWN;
-out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-unlock_rtnl:
- rtnl_unlock();
- return err;
+ return cfg80211_disconnect(rdev, dev, reason, true);
}
static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct net *net;
int err;
u32 pid;
pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
- rtnl_lock();
-
- rdev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(rdev)) {
- err = PTR_ERR(rdev);
- goto out_rtnl;
- }
-
net = get_net_ns_by_pid(pid);
- if (IS_ERR(net)) {
- err = PTR_ERR(net);
- goto out;
- }
+ if (IS_ERR(net))
+ return PTR_ERR(net);
err = 0;
/* check if anything to do */
- if (net_eq(wiphy_net(&rdev->wiphy), net))
- goto out_put_net;
+ if (!net_eq(wiphy_net(&rdev->wiphy), net))
+ err = cfg80211_switch_netns(rdev, net);
- err = cfg80211_switch_netns(rdev, net);
- out_put_net:
put_net(net);
- out:
- cfg80211_unlock_rdev(rdev);
- out_rtnl:
- rtnl_unlock();
return err;
}
static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_pmksa *pmksa) = NULL;
- int err;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
struct cfg80211_pmksa pmksa;
memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
if (!info->attrs[NL80211_ATTR_PMKID])
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
-
pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
switch (info->genlhdr->cmd) {
case NL80211_CMD_SET_PMKSA:
break;
}
- if (!rdev_ops) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- err = rdev_ops(&rdev->wiphy, dev, &pmksa);
-
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
+ if (!rdev_ops)
+ return -EOPNOTSUPP;
- return err;
+ return rdev_ops(&rdev->wiphy, dev, &pmksa);
}
static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- int err;
- struct net_device *dev;
-
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto out_rtnl;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- if (!rdev->ops->flush_pmksa) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- err = rdev->ops->flush_pmksa(&rdev->wiphy, dev);
-
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- out_rtnl:
- rtnl_unlock();
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
- return err;
+ if (!rdev->ops->flush_pmksa)
+ return -EOPNOTSUPP;
+ return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
}
static int nl80211_remain_on_channel(struct sk_buff *skb,
struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct ieee80211_channel *chan;
struct sk_buff *msg;
void *hdr;
if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->remain_on_channel) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->remain_on_channel)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
channel_type = nla_get_u32(
if (channel_type != NL80211_CHAN_NO_HT &&
channel_type != NL80211_CHAN_HT20 &&
channel_type != NL80211_CHAN_HT40PLUS &&
- channel_type != NL80211_CHAN_HT40MINUS) {
- err = -EINVAL;
- goto out;
- }
+ channel_type != NL80211_CHAN_HT40MINUS)
+ return -EINVAL;
}
freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
chan = rdev_freq_to_chan(rdev, freq, channel_type);
- if (chan == NULL) {
- err = -EINVAL;
- goto out;
- }
+ if (chan == NULL)
+ return -EINVAL;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg) {
- err = -ENOMEM;
- goto out;
- }
+ if (!msg)
+ return -ENOMEM;
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_REMAIN_ON_CHANNEL);
NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
genlmsg_end(msg, hdr);
- err = genlmsg_reply(msg, info);
- goto out;
+
+ return genlmsg_reply(msg, info);
nla_put_failure:
err = -ENOBUFS;
free_msg:
nlmsg_free(msg);
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- unlock_rtnl:
- rtnl_unlock();
return err;
}
static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
u64 cookie;
- int err;
if (!info->attrs[NL80211_ATTR_COOKIE])
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->cancel_remain_on_channel) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->cancel_remain_on_channel)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
- err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
-
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- unlock_rtnl:
- rtnl_unlock();
- return err;
+ return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
}
static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
struct genl_info *info)
{
struct nlattr *tb[NL80211_TXRATE_MAX + 1];
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct cfg80211_bitrate_mask mask;
- int err, rem, i;
- struct net_device *dev;
+ int rem, i;
+ struct net_device *dev = info->user_ptr[1];
struct nlattr *tx_rates;
struct ieee80211_supported_band *sband;
if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->set_bitrate_mask) {
- err = -EOPNOTSUPP;
- goto unlock;
- }
+ if (!rdev->ops->set_bitrate_mask)
+ return -EOPNOTSUPP;
memset(&mask, 0, sizeof(mask));
/* Default to all rates enabled */
nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
{
enum ieee80211_band band = nla_type(tx_rates);
- if (band < 0 || band >= IEEE80211_NUM_BANDS) {
- err = -EINVAL;
- goto unlock;
- }
+ if (band < 0 || band >= IEEE80211_NUM_BANDS)
+ return -EINVAL;
sband = rdev->wiphy.bands[band];
- if (sband == NULL) {
- err = -EINVAL;
- goto unlock;
- }
+ if (sband == NULL)
+ return -EINVAL;
nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
nla_len(tx_rates), nl80211_txattr_policy);
if (tb[NL80211_TXRATE_LEGACY]) {
sband,
nla_data(tb[NL80211_TXRATE_LEGACY]),
nla_len(tb[NL80211_TXRATE_LEGACY]));
- if (mask.control[band].legacy == 0) {
- err = -EINVAL;
- goto unlock;
- }
+ if (mask.control[band].legacy == 0)
+ return -EINVAL;
}
}
- err = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
-
- unlock:
- dev_put(dev);
- cfg80211_unlock_rdev(rdev);
- unlock_rtnl:
- rtnl_unlock();
- return err;
+ return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
}
static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
- int err;
if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
return -EINVAL;
if (info->attrs[NL80211_ATTR_FRAME_TYPE])
frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+ return -EOPNOTSUPP;
/* not much point in registering if we can't reply */
- if (!rdev->ops->mgmt_tx) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->mgmt_tx)
+ return -EOPNOTSUPP;
- err = cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
+ return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
frame_type,
nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- unlock_rtnl:
- rtnl_unlock();
- return err;
}
static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
- struct net_device *dev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct net_device *dev = info->user_ptr[1];
struct ieee80211_channel *chan;
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
bool channel_type_valid = false;
!info->attrs[NL80211_ATTR_WIPHY_FREQ])
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
- if (!rdev->ops->mgmt_tx) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->mgmt_tx)
+ return -EOPNOTSUPP;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
- dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+ return -EOPNOTSUPP;
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
+ if (!netif_running(dev))
+ return -ENETDOWN;
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
channel_type = nla_get_u32(
if (channel_type != NL80211_CHAN_NO_HT &&
channel_type != NL80211_CHAN_HT20 &&
channel_type != NL80211_CHAN_HT40PLUS &&
- channel_type != NL80211_CHAN_HT40MINUS) {
- err = -EINVAL;
- goto out;
- }
+ channel_type != NL80211_CHAN_HT40MINUS)
+ return -EINVAL;
channel_type_valid = true;
}
freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
chan = rdev_freq_to_chan(rdev, freq, channel_type);
- if (chan == NULL) {
- err = -EINVAL;
- goto out;
- }
+ if (chan == NULL)
+ return -EINVAL;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg) {
- err = -ENOMEM;
- goto out;
- }
+ if (!msg)
+ return -ENOMEM;
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_FRAME);
NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
genlmsg_end(msg, hdr);
- err = genlmsg_reply(msg, info);
- goto out;
+ return genlmsg_reply(msg, info);
nla_put_failure:
err = -ENOBUFS;
free_msg:
nlmsg_free(msg);
- out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-unlock_rtnl:
- rtnl_unlock();
return err;
}
static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct wireless_dev *wdev;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
u8 ps_state;
bool state;
int err;
- if (!info->attrs[NL80211_ATTR_PS_STATE]) {
- err = -EINVAL;
- goto out;
- }
+ if (!info->attrs[NL80211_ATTR_PS_STATE])
+ return -EINVAL;
ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
- if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) {
- err = -EINVAL;
- goto out;
- }
-
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
+ if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
+ return -EINVAL;
wdev = dev->ieee80211_ptr;
- if (!rdev->ops->set_power_mgmt) {
- err = -EOPNOTSUPP;
- goto unlock_rdev;
- }
+ if (!rdev->ops->set_power_mgmt)
+ return -EOPNOTSUPP;
state = (ps_state == NL80211_PS_ENABLED) ? true : false;
if (state == wdev->ps)
- goto unlock_rdev;
-
- wdev->ps = state;
-
- if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, wdev->ps,
- wdev->ps_timeout))
- /* assume this means it's off */
- wdev->ps = false;
-
-unlock_rdev:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-unlock_rtnl:
- rtnl_unlock();
+ return 0;
-out:
+ err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
+ wdev->ps_timeout);
+ if (!err)
+ wdev->ps = state;
return err;
}
static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
enum nl80211_ps_state ps_state;
struct wireless_dev *wdev;
- struct net_device *dev;
+ struct net_device *dev = info->user_ptr[1];
struct sk_buff *msg;
void *hdr;
int err;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
wdev = dev->ieee80211_ptr;
- if (!rdev->ops->set_power_mgmt) {
- err = -EOPNOTSUPP;
- goto out;
- }
+ if (!rdev->ops->set_power_mgmt)
+ return -EOPNOTSUPP;
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
- if (!msg) {
- err = -ENOMEM;
- goto out;
- }
+ if (!msg)
+ return -ENOMEM;
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_GET_POWER_SAVE);
if (!hdr) {
- err = -ENOMEM;
+ err = -ENOBUFS;
goto free_msg;
}
NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
genlmsg_end(msg, hdr);
- err = genlmsg_reply(msg, info);
- goto out;
+ return genlmsg_reply(msg, info);
-nla_put_failure:
+ nla_put_failure:
err = -ENOBUFS;
-
-free_msg:
+ free_msg:
nlmsg_free(msg);
-
-out:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
-
-unlock_rtnl:
- rtnl_unlock();
-
return err;
}
static int nl80211_set_cqm_rssi(struct genl_info *info,
s32 threshold, u32 hysteresis)
{
- struct cfg80211_registered_device *rdev;
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct wireless_dev *wdev;
- struct net_device *dev;
- int err;
+ struct net_device *dev = info->user_ptr[1];
if (threshold > 0)
return -EINVAL;
- rtnl_lock();
-
- err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
- if (err)
- goto unlock_rtnl;
-
wdev = dev->ieee80211_ptr;
- if (!rdev->ops->set_cqm_rssi_config) {
- err = -EOPNOTSUPP;
- goto unlock_rdev;
- }
+ if (!rdev->ops->set_cqm_rssi_config)
+ return -EOPNOTSUPP;
if (wdev->iftype != NL80211_IFTYPE_STATION &&
- wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) {
- err = -EOPNOTSUPP;
- goto unlock_rdev;
- }
-
- err = rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
- threshold, hysteresis);
-
- unlock_rdev:
- cfg80211_unlock_rdev(rdev);
- dev_put(dev);
- unlock_rtnl:
- rtnl_unlock();
+ wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
+ return -EOPNOTSUPP;
- return err;
+ return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
+ threshold, hysteresis);
}
static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
return err;
}
+#define NL80211_FLAG_NEED_WIPHY 0x01
+#define NL80211_FLAG_NEED_NETDEV 0x02
+#define NL80211_FLAG_NEED_RTNL 0x04
+
+static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
+ struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev;
+ struct net_device *dev;
+ int err;
+ bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
+
+ if (rtnl)
+ rtnl_lock();
+
+ if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
+ rdev = cfg80211_get_dev_from_info(info);
+ if (IS_ERR(rdev)) {
+ if (rtnl)
+ rtnl_unlock();
+ return PTR_ERR(rdev);
+ }
+ info->user_ptr[0] = rdev;
+ } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
+ if (err) {
+ if (rtnl)
+ rtnl_unlock();
+ return err;
+ }
+ info->user_ptr[0] = rdev;
+ info->user_ptr[1] = dev;
+ }
+
+ return 0;
+}
+
+static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
+ struct genl_info *info)
+{
+ if (info->user_ptr[0])
+ cfg80211_unlock_rdev(info->user_ptr[0]);
+ if (info->user_ptr[1])
+ dev_put(info->user_ptr[1]);
+ if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
+ rtnl_unlock();
+}
+
static struct genl_ops nl80211_ops[] = {
{
.cmd = NL80211_CMD_GET_WIPHY,
.dumpit = nl80211_dump_wiphy,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
+ .internal_flags = NL80211_FLAG_NEED_WIPHY,
},
{
.cmd = NL80211_CMD_SET_WIPHY,
.doit = nl80211_set_wiphy,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_GET_INTERFACE,
.dumpit = nl80211_dump_interface,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
+ .internal_flags = NL80211_FLAG_NEED_NETDEV,
},
{
.cmd = NL80211_CMD_SET_INTERFACE,
.doit = nl80211_set_interface,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_NEW_INTERFACE,
.doit = nl80211_new_interface,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_WIPHY |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_DEL_INTERFACE,
.doit = nl80211_del_interface,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_GET_KEY,
.doit = nl80211_get_key,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_KEY,
.doit = nl80211_set_key,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_NEW_KEY,
.doit = nl80211_new_key,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_DEL_KEY,
.doit = nl80211_del_key,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_BEACON,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.doit = nl80211_addset_beacon,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_NEW_BEACON,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.doit = nl80211_addset_beacon,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_DEL_BEACON,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.doit = nl80211_del_beacon,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_GET_STATION,
.doit = nl80211_get_station,
.dumpit = nl80211_dump_station,
.policy = nl80211_policy,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_STATION,
.doit = nl80211_set_station,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_NEW_STATION,
.doit = nl80211_new_station,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_DEL_STATION,
.doit = nl80211_del_station,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_GET_MPATH,
.dumpit = nl80211_dump_mpath,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_MPATH,
.doit = nl80211_set_mpath,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_NEW_MPATH,
.doit = nl80211_new_mpath,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_DEL_MPATH,
.doit = nl80211_del_mpath,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_BSS,
.doit = nl80211_set_bss,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_GET_REG,
.doit = nl80211_get_mesh_params,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_MESH_PARAMS,
.doit = nl80211_set_mesh_params,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_TRIGGER_SCAN,
.doit = nl80211_trigger_scan,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_GET_SCAN,
.doit = nl80211_authenticate,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_ASSOCIATE,
.doit = nl80211_associate,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_DEAUTHENTICATE,
.doit = nl80211_deauthenticate,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_DISASSOCIATE,
.doit = nl80211_disassociate,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_JOIN_IBSS,
.doit = nl80211_join_ibss,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_LEAVE_IBSS,
.doit = nl80211_leave_ibss,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
#ifdef CONFIG_NL80211_TESTMODE
{
.doit = nl80211_testmode_do,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_WIPHY |
+ NL80211_FLAG_NEED_RTNL,
},
#endif
{
.doit = nl80211_connect,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_DISCONNECT,
.doit = nl80211_disconnect,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_WIPHY_NETNS,
.doit = nl80211_wiphy_netns,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_WIPHY |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_GET_SURVEY,
.doit = nl80211_setdel_pmksa,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_DEL_PMKSA,
.doit = nl80211_setdel_pmksa,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_FLUSH_PMKSA,
.doit = nl80211_flush_pmksa,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
.doit = nl80211_remain_on_channel,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
.doit = nl80211_cancel_remain_on_channel,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
.doit = nl80211_set_tx_bitrate_mask,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_REGISTER_FRAME,
.doit = nl80211_register_mgmt,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_FRAME,
.doit = nl80211_tx_mgmt,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_POWER_SAVE,
.doit = nl80211_set_power_save,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_GET_POWER_SAVE,
.doit = nl80211_get_power_save,
.policy = nl80211_policy,
/* can be retrieved by unprivileged users */
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_CQM,
.doit = nl80211_set_cqm,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_CHANNEL,
.doit = nl80211_set_channel,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV |
+ NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_SET_WDS_PEER,
git.openpandora.org / pandora-kernel.git / commitdiff