diff options
| author | Patrick McHardy <kaber@trash.net> | 2006-01-06 23:04:54 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-01-07 12:57:33 -0800 |
| commit | 3e3850e989c5d2eb1aab6f0fd9257759f0f4cbc6 (patch) | |
| tree | fa05d1de4767bc30e77442ffbacfe8bd8dd2213d /include | |
| parent | 8cdfab8a43bb4b3da686ea503a702cb6f9f6a803 (diff) | |
[NETFILTER]: Fix xfrm lookup in ip_route_me_harder/ip6_route_me_harder
ip_route_me_harder doesn't use the port numbers of the xfrm lookup and
uses ip_route_input for non-local addresses which doesn't do a xfrm
lookup, ip6_route_me_harder doesn't do a xfrm lookup at all.
Use xfrm_decode_session and do the lookup manually, make sure both
only do the lookup if the packet hasn't been transformed already.
Makeing sure the lookup only happens once needs a new field in the
IP6CB, which exceeds the size of skb->cb. The size of skb->cb is
increased to 48b. Apparently the IPv6 mobile extensions need some
more room anyway.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ipv6.h | 3 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 2 | ||||
| -rw-r--r-- | include/net/ip.h | 3 | ||||
| -rw-r--r-- | include/net/xfrm.h | 2 |
4 files changed, 7 insertions, 3 deletions
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index 5cfc7152959..9c8f4c9ed42 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -192,6 +192,9 @@ struct inet6_skb_parm { __u16 dst1; __u16 lastopt; __u32 nhoff; + __u16 flags; + +#define IP6SKB_XFRM_TRANSFORMED 1 }; #define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb)) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 483cfc47ec3..e5fd66c5650 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -251,7 +251,7 @@ struct sk_buff { * want to keep them across layers you have to do a skb_clone() * first. This is owned by whoever has the skb queued ATM. */ - char cb[40]; + char cb[48]; unsigned int len, data_len, diff --git a/include/net/ip.h b/include/net/ip.h index 52f4d9c6970..a494d04e5de 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -39,7 +39,8 @@ struct inet_skb_parm #define IPSKB_FORWARDED 1 #define IPSKB_XFRM_TUNNEL_SIZE 2 -#define IPSKB_FRAG_COMPLETE 4 +#define IPSKB_XFRM_TRANSFORMED 4 +#define IPSKB_FRAG_COMPLETE 8 }; struct ipcm_cookie diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 297d09d28fe..d6111a2f0a2 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -668,7 +668,7 @@ static inline int xfrm6_policy_check(struct sock *sk, int dir, struct sk_buff *s return xfrm_policy_check(sk, dir, skb, AF_INET6); } - +extern int xfrm_decode_session(struct sk_buff *skb, struct flowi *fl, unsigned short family); extern int __xfrm_route_forward(struct sk_buff *skb, unsigned short family); static inline int xfrm_route_forward(struct sk_buff *skb, unsigned short family) |