diff options
| author | Patrick McHardy <kaber@trash.net> | 2006-02-15 15:10:22 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-02-15 15:10:22 -0800 |
| commit | 48d5cad87c3a4998d0bda16ccfb5c60dfe4de5fb (patch) | |
| tree | bfad91af72f4c522a44bab6133b540cda365d8c1 /include/net | |
| parent | 5ecfbae093f0c37311e89b29bfc0c9d586eace87 (diff) | |
| download | linux-48d5cad87c3a4998d0bda16ccfb5c60dfe4de5fb.tar.bz2 | |
[XFRM]: Fix SNAT-related crash in xfrm4_output_finish
When a packet matching an IPsec policy is SNATed so it doesn't match any
policy anymore it looses its xfrm bundle, which makes xfrm4_output_finish
crash because of a NULL pointer dereference.
This patch directs these packets to the original output path instead. Since
the packets have already passed the POST_ROUTING hook, but need to start at
the beginning of the original output path which includes another
POST_ROUTING invocation, a flag is added to the IPCB to indicate that the
packet was rerouted and doesn't need to pass the POST_ROUTING hook again.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/ip.h | 1 | ||||
| -rw-r--r-- | include/net/xfrm.h | 1 |
2 files changed, 1 insertions, 1 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index 8de0697b364c..fab3d5b3ab1c 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -41,6 +41,7 @@ struct inet_skb_parm #define IPSKB_XFRM_TUNNEL_SIZE 2 #define IPSKB_XFRM_TRANSFORMED 4 #define IPSKB_FRAG_COMPLETE 8 +#define IPSKB_REROUTED 16 }; struct ipcm_cookie diff --git a/include/net/xfrm.h b/include/net/xfrm.h index d09ca0e7d139..d6111a2f0a23 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -866,7 +866,6 @@ extern int xfrm_state_mtu(struct xfrm_state *x, int mtu); extern int xfrm_init_state(struct xfrm_state *x); extern int xfrm4_rcv(struct sk_buff *skb); extern int xfrm4_output(struct sk_buff *skb); -extern int xfrm4_output_finish(struct sk_buff *skb); extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler); extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler); extern int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi); |