From b05e106698d9966de524e78d9da1bf6407fe0c32 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Fri, 6 Jan 2006 23:03:34 -0800 Subject: [IPV4/6]: Netfilter IPsec input hooks When the innermost transform uses transport mode the decapsulated packet is not visible to netfilter. Pass the packet through the PRE_ROUTING and LOCAL_IN hooks again before handing it to upper layer protocols to make netfilter-visibility symetrical to the output path. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/ipv6/xfrm6_input.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'net/ipv6/xfrm6_input.c') diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c index 1079e47f3933..1ca2da68ef69 100644 --- a/net/ipv6/xfrm6_input.c +++ b/net/ipv6/xfrm6_input.c @@ -11,6 +11,8 @@ #include #include +#include +#include #include #include #include @@ -121,6 +123,8 @@ int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi) skb->sp->len += xfrm_nr; skb->ip_summed = CHECKSUM_NONE; + nf_reset(skb); + if (decaps) { if (!(skb->dev->flags&IFF_LOOPBACK)) { dst_release(skb->dst); @@ -129,7 +133,16 @@ int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi) netif_rx(skb); return -1; } else { +#ifdef CONFIG_NETFILTER + skb->nh.ipv6h->payload_len = htons(skb->len); + __skb_push(skb, skb->data - skb->nh.raw); + + NF_HOOK(PF_INET6, NF_IP6_PRE_ROUTING, skb, skb->dev, NULL, + ip6_rcv_finish); + return -1; +#else return 1; +#endif } drop_unlock: -- cgit v1.2.3