diff options
| author | Patrick McHardy <kaber@trash.net> | 2006-01-06 23:03:34 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-01-07 12:57:31 -0800 |
| commit | b05e106698d9966de524e78d9da1bf6407fe0c32 (patch) | |
| tree | 8a7c253b7249451941674805cccdaaba299dff6f /net/ipv6 | |
| parent | 951dbc8ac714b04c36296b8b5c36c8e036ce433f (diff) | |
[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 <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6_input.c | 2 | ||||
| -rw-r--r-- | net/ipv6/xfrm6_input.c | 13 |
2 files changed, 14 insertions, 1 deletions
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index 13d724150f33..29f73592e68e 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -48,7 +48,7 @@ -static inline int ip6_rcv_finish( struct sk_buff *skb) +inline int ip6_rcv_finish( struct sk_buff *skb) { if (skb->dst == NULL) ip6_route_input(skb); 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 <linux/module.h> #include <linux/string.h> +#include <linux/netfilter.h> +#include <linux/netfilter_ipv6.h> #include <net/dsfield.h> #include <net/inet_ecn.h> #include <net/ip.h> @@ -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: |