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authorPatrick McHardy <kaber@trash.net>2006-01-06 23:01:48 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-01-07 12:57:28 -0800
commit16a6677fdf1d1194f688f8291b06fbaff248c353 (patch)
tree61badedc44ed88eb8f39e082d1abf114252cc686 /include/net/dst.h
parentee2e6841b934d76cb944a3390bbea84da777d4fa (diff)
downloadop-kernel-dev-16a6677fdf1d1194f688f8291b06fbaff248c353.zip
op-kernel-dev-16a6677fdf1d1194f688f8291b06fbaff248c353.tar.gz
[XFRM]: Netfilter IPsec output hooks
Call netfilter hooks before IPsec transforms. Packets visit the FORWARD/LOCAL_OUT and POST_ROUTING hook before the first encapsulation and the LOCAL_OUT and POST_ROUTING hook before each following tunnel mode transform. Patch from Herbert Xu <herbert@gondor.apana.org.au>: Move the loop from dst_output into xfrm4_output/xfrm6_output since they're the only ones who need to it. xfrm{4,6}_output_one() processes the first SA all subsequent transport mode SAs and is called in a loop that calls the netfilter hooks between each two calls. In order to avoid the tail call issue, I've added the inline function nf_hook which is nf_hook_slow plus the empty list check. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dst.h')
-rw-r--r--include/net/dst.h11
1 files changed, 1 insertions, 10 deletions
diff --git a/include/net/dst.h b/include/net/dst.h
index bee8b84d..5161e89 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -225,16 +225,7 @@ static inline void dst_set_expires(struct dst_entry *dst, int timeout)
/* Output packet to network from transport. */
static inline int dst_output(struct sk_buff *skb)
{
- int err;
-
- for (;;) {
- err = skb->dst->output(skb);
-
- if (likely(err == 0))
- return err;
- if (unlikely(err != NET_XMIT_BYPASS))
- return err;
- }
+ return skb->dst->output(skb);
}
/* Input packet from network to transport. */
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