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authorPatrick McHardy <kaber@trash.net>2006-01-06 23:04:54 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-01-07 12:57:33 -0800
commit3e3850e989c5d2eb1aab6f0fd9257759f0f4cbc6 (patch)
treefa05d1de4767bc30e77442ffbacfe8bd8dd2213d /include
parent8cdfab8a43bb4b3da686ea503a702cb6f9f6a803 (diff)
downloadop-kernel-dev-3e3850e989c5d2eb1aab6f0fd9257759f0f4cbc6.zip
op-kernel-dev-3e3850e989c5d2eb1aab6f0fd9257759f0f4cbc6.tar.gz
[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.h3
-rw-r--r--include/linux/skbuff.h2
-rw-r--r--include/net/ip.h3
-rw-r--r--include/net/xfrm.h2
4 files changed, 7 insertions, 3 deletions
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 5cfc715..9c8f4c9 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 483cfc4..e5fd66c 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 52f4d9c..a494d04 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 297d09d..d6111a2 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)
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