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authorPatrick McHardy <kaber@trash.net>2013-04-05 06:41:12 +0000
committerPablo Neira Ayuso <pablo@netfilter.org>2013-04-08 12:34:01 +0200
commitaaa795ad25e18488b026572c7ba2ca8f99ced0b7 (patch)
treec3a4063079921aeca40976aa631b8dba0113507d /net/netfilter
parent58e35d1471287c59b9749fb82f04c628c36b9994 (diff)
downloadtalos-op-linux-aaa795ad25e18488b026572c7ba2ca8f99ced0b7.tar.gz
talos-op-linux-aaa795ad25e18488b026572c7ba2ca8f99ced0b7.zip
netfilter: nat: propagate errors from xfrm_me_harder()
Propagate errors from ip_xfrm_me_harder() instead of returning EPERM in all cases. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
-rw-r--r--net/netfilter/nf_nat_core.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index 8d5769c6d16e..346f871cf096 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -87,9 +87,10 @@ int nf_xfrm_me_harder(struct sk_buff *skb, unsigned int family)
struct flowi fl;
unsigned int hh_len;
struct dst_entry *dst;
+ int err;
- if (xfrm_decode_session(skb, &fl, family) < 0)
- return -1;
+ err = xfrm_decode_session(skb, &fl, family);
+ return err;
dst = skb_dst(skb);
if (dst->xfrm)
@@ -98,7 +99,7 @@ int nf_xfrm_me_harder(struct sk_buff *skb, unsigned int family)
dst = xfrm_lookup(dev_net(dst->dev), dst, &fl, skb->sk, 0);
if (IS_ERR(dst))
- return -1;
+ return PTR_ERR(dst);
skb_dst_drop(skb);
skb_dst_set(skb, dst);
@@ -107,7 +108,7 @@ int nf_xfrm_me_harder(struct sk_buff *skb, unsigned int family)
hh_len = skb_dst(skb)->dev->hard_header_len;
if (skb_headroom(skb) < hh_len &&
pskb_expand_head(skb, hh_len - skb_headroom(skb), 0, GFP_ATOMIC))
- return -1;
+ return -ENOMEM;
return 0;
}
EXPORT_SYMBOL(nf_xfrm_me_harder);
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