1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * xfrm4_state.c
 4 *
 5 * Changes:
 6 * 	YOSHIFUJI Hideaki @USAGI
 7 * 		Split up af-specific portion
 8 *
 9 */
10
 
11#include <net/xfrm.h>
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
12
13static struct xfrm_state_afinfo xfrm4_state_afinfo = {
14	.family			= AF_INET,
15	.proto			= IPPROTO_IPIP,
16	.output			= xfrm4_output,
 
 
 
17	.transport_finish	= xfrm4_transport_finish,
18	.local_error		= xfrm4_local_error,
19};
20
21void __init xfrm4_state_init(void)
22{
23	xfrm_state_register_afinfo(&xfrm4_state_afinfo);
24}

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * xfrm4_state.c
 4 *
 5 * Changes:
 6 * 	YOSHIFUJI Hideaki @USAGI
 7 * 		Split up af-specific portion
 8 *
 9 */
10
11#include <net/ip.h>
12#include <net/xfrm.h>
13#include <linux/pfkeyv2.h>
14#include <linux/ipsec.h>
15#include <linux/netfilter_ipv4.h>
16#include <linux/export.h>
17
18int xfrm4_extract_header(struct sk_buff *skb)
19{
20	const struct iphdr *iph = ip_hdr(skb);
21
22	XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph);
23	XFRM_MODE_SKB_CB(skb)->id = iph->id;
24	XFRM_MODE_SKB_CB(skb)->frag_off = iph->frag_off;
25	XFRM_MODE_SKB_CB(skb)->tos = iph->tos;
26	XFRM_MODE_SKB_CB(skb)->ttl = iph->ttl;
27	XFRM_MODE_SKB_CB(skb)->optlen = iph->ihl * 4 - sizeof(*iph);
28	memset(XFRM_MODE_SKB_CB(skb)->flow_lbl, 0,
29	       sizeof(XFRM_MODE_SKB_CB(skb)->flow_lbl));
30
31	return 0;
32}
33
34static struct xfrm_state_afinfo xfrm4_state_afinfo = {
35	.family			= AF_INET,
36	.proto			= IPPROTO_IPIP,
37	.output			= xfrm4_output,
38	.output_finish		= xfrm4_output_finish,
39	.extract_input		= xfrm4_extract_input,
40	.extract_output		= xfrm4_extract_output,
41	.transport_finish	= xfrm4_transport_finish,
42	.local_error		= xfrm4_local_error,
43};
44
45void __init xfrm4_state_init(void)
46{
47	xfrm_state_register_afinfo(&xfrm4_state_afinfo);
48}