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Commit 41265714 authored by Johannes Berg's avatar Johannes Berg Committed by John W. Linville
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nl80211: use generic check for netif_running 

Use a new flag that requires the netdev to be
UP and use it to check instead of coding the
check into all functions that require it.
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 4c476991
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Inline Side-by-side
Showing with 28 additions and 69 deletions
net/wireless/nl80211.c
View file @ 41265714
......@@ -411,9 +411,6 @@ static int nl80211_key_allowed(struct wireless_dev *wdev)
{
ASSERT_WDEV_LOCK(wdev);
if (!netif_running(wdev->netdev))
return -ENETDOWN;
switch (wdev->iftype) {
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
......@@ -2083,11 +2080,6 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
goto out;
}
if (!netif_running(dev)) {
err = -ENETDOWN;
goto out;
}
err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
out:
......@@ -2301,9 +2293,6 @@ static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
}
......@@ -2329,9 +2318,6 @@ static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
}
......@@ -2823,9 +2809,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
if (!rdev->ops->scan)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
if (rdev->scan_req)
return -EBUSY;
......@@ -3296,9 +3279,6 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
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]));
......@@ -3429,9 +3409,6 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
chan = ieee80211_get_channel(&rdev->wiphy,
......@@ -3493,9 +3470,6 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
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]);
......@@ -3540,9 +3514,6 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
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]);
......@@ -3596,9 +3567,6 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
wiphy = &rdev->wiphy;
if (info->attrs[NL80211_ATTR_MAC])
......@@ -3673,9 +3641,6 @@ static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
return cfg80211_leave_ibss(rdev, dev, false);
}
......@@ -3826,9 +3791,6 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
wiphy = &rdev->wiphy;
if (info->attrs[NL80211_ATTR_MAC])
......@@ -3881,9 +3843,6 @@ static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
return cfg80211_disconnect(rdev, dev, reason, true);
}
......@@ -3998,9 +3957,6 @@ static int nl80211_remain_on_channel(struct sk_buff *skb,
if (!rdev->ops->remain_on_channel)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
channel_type = nla_get_u32(
info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
......@@ -4060,9 +4016,6 @@ static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
if (!rdev->ops->cancel_remain_on_channel)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
......@@ -4207,9 +4160,6 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
return -EOPNOTSUPP;
if (!netif_running(dev))
return -ENETDOWN;
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
channel_type = nla_get_u32(
info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
......@@ -4398,6 +4348,9 @@ static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
#define NL80211_FLAG_NEED_WIPHY 0x01
#define NL80211_FLAG_NEED_NETDEV 0x02
#define NL80211_FLAG_NEED_RTNL 0x04
#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
NL80211_FLAG_CHECK_NETDEV_UP)
static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
struct genl_info *info)
......@@ -4425,6 +4378,12 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
rtnl_unlock();
return err;
}
if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
!netif_running(dev)) {
if (rtnl)
rtnl_unlock();
return -ENETDOWN;
}
info->user_ptr[0] = rdev;
info->user_ptr[1] = dev;
}
......@@ -4504,7 +4463,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_set_key,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4512,7 +4471,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_new_key,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4520,7 +4479,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_del_key,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4568,7 +4527,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_new_station,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4585,7 +4544,7 @@ static struct genl_ops nl80211_ops[] = {
.dumpit = nl80211_dump_mpath,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4593,7 +4552,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_set_mpath,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4601,7 +4560,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_new_mpath,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4659,7 +4618,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_trigger_scan,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4672,7 +4631,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_authenticate,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4680,7 +4639,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_associate,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4688,7 +4647,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_deauthenticate,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4696,7 +4655,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_disassociate,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4704,7 +4663,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_join_ibss,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4712,7 +4671,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_leave_ibss,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
#ifdef CONFIG_NL80211_TESTMODE
......@@ -4730,7 +4689,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_connect,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4738,7 +4697,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_disconnect,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4783,7 +4742,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_remain_on_channel,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4791,7 +4750,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_cancel_remain_on_channel,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......@@ -4815,7 +4774,7 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_tx_mgmt,
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV |
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
{
......
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