aboutsummaryrefslogtreecommitdiff
path: root/net/ipv6/xfrm6_state.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv6/xfrm6_state.c')
-rw-r--r--net/ipv6/xfrm6_state.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index b392bee396f..98b05f47232 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -14,6 +14,7 @@
#include <net/xfrm.h>
#include <linux/pfkeyv2.h>
#include <linux/ipsec.h>
+#include <net/dsfield.h>
#include <net/ipv6.h>
#include <net/addrconf.h>
@@ -168,13 +169,30 @@ __xfrm6_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n)
return 0;
}
+int xfrm6_extract_header(struct sk_buff *skb)
+{
+ struct ipv6hdr *iph = ipv6_hdr(skb);
+
+ XFRM_MODE_SKB_CB(skb)->id = 0;
+ XFRM_MODE_SKB_CB(skb)->frag_off = htons(IP_DF);
+ XFRM_MODE_SKB_CB(skb)->tos = ipv6_get_dsfield(iph);
+ XFRM_MODE_SKB_CB(skb)->ttl = iph->hop_limit;
+ XFRM_MODE_SKB_CB(skb)->protocol = iph->nexthdr;
+ memcpy(XFRM_MODE_SKB_CB(skb)->flow_lbl, iph->flow_lbl,
+ sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl));
+
+ return 0;
+}
+
static struct xfrm_state_afinfo xfrm6_state_afinfo = {
.family = AF_INET6,
+ .proto = IPPROTO_IPV6,
.owner = THIS_MODULE,
.init_tempsel = __xfrm6_init_tempsel,
.tmpl_sort = __xfrm6_tmpl_sort,
.state_sort = __xfrm6_state_sort,
.output = xfrm6_output,
+ .extract_output = xfrm6_extract_output,
};
void __init xfrm6_state_init(void)