From: Johannes Berg <johannes.berg@xxxxxxxxx>
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: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/wireless/nl80211.c | 97 ++++++++++++++-----------------------------------
1 file changed, 28 insertions(+), 69 deletions(-)
--- wireless-testing.orig/net/wireless/nl80211.c 2010-10-01 11:10:58.000000000 +0200
+++ wireless-testing/net/wireless/nl80211.c 2010-10-01 11:10:58.000000000 +0200
@@ -411,9 +411,6 @@ static int nl80211_key_allowed(struct wi
{
ASSERT_WDEV_LOCK(wdev);
- if (!netif_running(wdev->netdev))
- return -ENETDOWN;
-
switch (wdev->iftype) {
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_AP_VLAN:
@@ -2035,11 +2032,6 @@ static int nl80211_new_station(struct sk
goto out;
}
- if (!netif_running(dev)) {
- err = -ENETDOWN;
- goto out;
- }
-
err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
out:
@@ -2253,9 +2245,6 @@ static int nl80211_set_mpath(struct sk_b
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);
}
@@ -2281,9 +2270,6 @@ static int nl80211_new_mpath(struct sk_b
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);
}
@@ -2775,9 +2761,6 @@ static int nl80211_trigger_scan(struct s
if (!rdev->ops->scan)
return -EOPNOTSUPP;
- if (!netif_running(dev))
- return -ENETDOWN;
-
if (rdev->scan_req)
return -EBUSY;
@@ -3246,9 +3229,6 @@ static int nl80211_authenticate(struct s
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]));
@@ -3379,9 +3359,6 @@ static int nl80211_associate(struct sk_b
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,
@@ -3443,9 +3420,6 @@ static int nl80211_deauthenticate(struct
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]);
@@ -3490,9 +3464,6 @@ static int nl80211_disassociate(struct s
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]);
@@ -3546,9 +3517,6 @@ static int nl80211_join_ibss(struct sk_b
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])
@@ -3623,9 +3591,6 @@ static int nl80211_leave_ibss(struct sk_
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
return -EOPNOTSUPP;
- if (!netif_running(dev))
- return -ENETDOWN;
-
return cfg80211_leave_ibss(rdev, dev, false);
}
@@ -3776,9 +3741,6 @@ static int nl80211_connect(struct sk_buf
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])
@@ -3831,9 +3793,6 @@ static int nl80211_disconnect(struct sk_
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
- if (!netif_running(dev))
- return -ENETDOWN;
-
return cfg80211_disconnect(rdev, dev, reason, true);
}
@@ -3948,9 +3907,6 @@ static int nl80211_remain_on_channel(str
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]);
@@ -4010,9 +3966,6 @@ static int nl80211_cancel_remain_on_chan
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);
@@ -4157,9 +4110,6 @@ static int nl80211_tx_mgmt(struct sk_buf
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]);
@@ -4348,6 +4298,9 @@ out:
#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)
@@ -4375,6 +4328,12 @@ static int nl80211_pre_doit(struct genl_
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;
}
@@ -4454,7 +4413,7 @@ 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,
},
{
@@ -4462,7 +4421,7 @@ 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,
},
{
@@ -4470,7 +4429,7 @@ 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,
},
{
@@ -4518,7 +4477,7 @@ 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,
},
{
@@ -4535,7 +4494,7 @@ 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,
},
{
@@ -4543,7 +4502,7 @@ 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,
},
{
@@ -4551,7 +4510,7 @@ 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,
},
{
@@ -4609,7 +4568,7 @@ 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,
},
{
@@ -4622,7 +4581,7 @@ 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,
},
{
@@ -4630,7 +4589,7 @@ 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,
},
{
@@ -4638,7 +4597,7 @@ 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,
},
{
@@ -4646,7 +4605,7 @@ 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,
},
{
@@ -4654,7 +4613,7 @@ 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,
},
{
@@ -4662,7 +4621,7 @@ 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
@@ -4680,7 +4639,7 @@ 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,
},
{
@@ -4688,7 +4647,7 @@ 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,
},
{
@@ -4733,7 +4692,7 @@ 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,
},
{
@@ -4741,7 +4700,7 @@ 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,
},
{
@@ -4765,7 +4724,7 @@ 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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