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[IPSEC]: Fix transport-mode async resume on intput without netfilter

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When netfilter is off the transport-mode async resumption doesn't work
because we don't push back the IP header.  This patch fixes that by
moving most of the code outside of ifdef NETFILTER since the only part
that's not common is the short-circuit in the protocol handler.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Herbert Xu 2007-12-30 21:10:14 -08:00 committed by David S. Miller
parent fcb8c156c8
commit 0883ae0e55
2 changed files with 10 additions and 14 deletions
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12
net/ipv4/xfrm4_input.c
View File

@ -51,7 +51,11 @@ int xfrm4_transport_finish(struct sk_buff *skb, int async)
iph->protocol = XFRM_MODE_SKB_CB(skb)->protocol;
#ifdef CONFIG_NETFILTER
#ifndef CONFIG_NETFILTER
if (!async)
return -iph->protocol;
#endif
__skb_push(skb, skb->data - skb_network_header(skb));
iph->tot_len = htons(skb->len);
ip_send_check(iph);
@ -59,12 +63,6 @@ int xfrm4_transport_finish(struct sk_buff *skb, int async)
NF_HOOK(PF_INET, NF_INET_PRE_ROUTING, skb, skb->dev, NULL,
xfrm4_rcv_encap_finish);
return 0;
#else
if (async)
return xfrm4_rcv_encap_finish(skb);
return -iph->protocol;
#endif
}
/* If it's a keepalive packet, then just eat it.

12
net/ipv6/xfrm6_input.c
View File

@ -34,19 +34,17 @@ int xfrm6_transport_finish(struct sk_buff *skb, int async)
skb_network_header(skb)[IP6CB(skb)->nhoff] =
XFRM_MODE_SKB_CB(skb)->protocol;
#ifdef CONFIG_NETFILTER
#ifndef CONFIG_NETFILTER
if (!async)
return 1;
#endif
ipv6_hdr(skb)->payload_len = htons(skb->len);
__skb_push(skb, skb->data - skb_network_header(skb));
NF_HOOK(PF_INET6, NF_INET_PRE_ROUTING, skb, skb->dev, NULL,
ip6_rcv_finish);
return -1;
#else
if (async)
return ip6_rcv_finish(skb);
return 1;
#endif
}
int xfrm6_rcv(struct sk_buff *skb)