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Diffstat (limited to 'net/ipv4/xfrm4_state.c')
-rw-r--r--net/ipv4/xfrm4_state.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 13d54a1c3337..fdeebe68a379 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -11,6 +11,7 @@
#include <net/xfrm.h>
#include <linux/pfkeyv2.h>
#include <linux/ipsec.h>
+#include <linux/netfilter_ipv4.h>
static struct xfrm_state_afinfo xfrm4_state_afinfo;
@@ -47,12 +48,31 @@ __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;
+ 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,
+ .eth_proto = htons(ETH_P_IP),
.owner = THIS_MODULE,
.init_flags = xfrm4_init_flags,
.init_tempsel = __xfrm4_init_tempsel,
.output = xfrm4_output,
+ .extract_input = xfrm4_extract_input,
+ .extract_output = xfrm4_extract_output,
+ .transport_finish = xfrm4_transport_finish,
};
void __init xfrm4_state_init(void)