[IPSEC]: Separate inner/outer mode processing on output

[linux-2.6-omap-h63xx.git] / net / ipv4 / xfrm4_state.c

diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 13d54a1c3337bd311c7245f331367296f07b0558..e6030e74ff65de644154532084ee4e8418b26265 100644 (file)
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -47,12 +47,29 @@ __xfrm4_init_tempsel(struct xfrm_state *x, struct flowi *fl,
        x->props.family = AF_INET;
 }
 
+int xfrm4_extract_header(struct sk_buff *skb)
+{
+       struct iphdr *iph = ip_hdr(skb);
+
+       XFRM_MODE_SKB_CB(skb)->id = iph->id;
+       XFRM_MODE_SKB_CB(skb)->frag_off = iph->frag_off;
+       XFRM_MODE_SKB_CB(skb)->tos = iph->tos;
+       XFRM_MODE_SKB_CB(skb)->ttl = iph->ttl;
+       XFRM_MODE_SKB_CB(skb)->protocol = iph->protocol;
+       memset(XFRM_MODE_SKB_CB(skb)->flow_lbl, 0,
+              sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl));
+
+       return 0;
+}
+
 static struct xfrm_state_afinfo xfrm4_state_afinfo = {
        .family                 = AF_INET,
+       .proto                  = IPPROTO_IPIP,
        .owner                  = THIS_MODULE,
        .init_flags             = xfrm4_init_flags,
        .init_tempsel           = __xfrm4_init_tempsel,
        .output                 = xfrm4_output,
+       .extract_output         = xfrm4_extract_output,
 };
 
 void __init xfrm4_state_init(void)