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authorEric Paris <eparis@redhat.com>2010-11-23 06:28:02 +0000
committerDavid S. Miller <davem@davemloft.net>2010-11-23 10:50:17 -0800
commit04f6d70f6e64900a5d70a5fc199dd9d5fa787738 (patch)
tree68d369f422f98842031ae4ada17e391140165b54 /security
parenteb06acdc85585f28864261f28659157848762ee4 (diff)
SELinux: Only return netlink error when we know the return is fatal
Some of the SELinux netlink code returns a fatal error when the error might actually be transient. This patch just silently drops packets on potentially transient errors but continues to return a permanant error indicator when the denial was because of policy. Based-on-comments-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Eric Paris <eparis@redhat.com> Reviewed-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'security')
-rw-r--r--security/selinux/hooks.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 2c145f12d991..f590fb8e9143 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4589,7 +4589,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
}
if (secmark_perm == PACKET__FORWARD_OUT) {
if (selinux_skb_peerlbl_sid(skb, family, &peer_sid))
- return NF_DROP_ERR(-ECONNREFUSED);
+ return NF_DROP;
} else
peer_sid = SECINITSID_KERNEL;
} else {
@@ -4602,7 +4602,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
ad.u.net.netif = ifindex;
ad.u.net.family = family;
if (selinux_parse_skb(skb, &ad, &addrp, 0, NULL))
- return NF_DROP_ERR(-ECONNREFUSED);
+ return NF_DROP;
if (secmark_active)
if (avc_has_perm(peer_sid, skb->secmark,
@@ -4614,13 +4614,13 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
u32 node_sid;
if (sel_netif_sid(ifindex, &if_sid))
- return NF_DROP_ERR(-ECONNREFUSED);
+ return NF_DROP;
if (avc_has_perm(peer_sid, if_sid,
SECCLASS_NETIF, NETIF__EGRESS, &ad))
return NF_DROP_ERR(-ECONNREFUSED);
if (sel_netnode_sid(addrp, family, &node_sid))
- return NF_DROP_ERR(-ECONNREFUSED);
+ return NF_DROP;
if (avc_has_perm(peer_sid, node_sid,
SECCLASS_NODE, NODE__SENDTO, &ad))
return NF_DROP_ERR(-ECONNREFUSED);

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