mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-15 08:14:15 +08:00
4c203b0454
xfrm_prepare_input needs to lookup the state afinfo backend again to fetch the address family ethernet protocol value. There are only two address families, so a switch statement is simpler. While at it, use u8 for family and proto and remove the owner member -- its not used anywhere. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* xfrm6_state.c: based on xfrm4_state.c
|
|
*
|
|
* Authors:
|
|
* Mitsuru KANDA @USAGI
|
|
* Kazunori MIYAZAWA @USAGI
|
|
* Kunihiro Ishiguro <kunihiro@ipinfusion.com>
|
|
* IPv6 support
|
|
* YOSHIFUJI Hideaki @USAGI
|
|
* Split up af-specific portion
|
|
*
|
|
*/
|
|
|
|
#include <net/xfrm.h>
|
|
#include <linux/pfkeyv2.h>
|
|
#include <linux/ipsec.h>
|
|
#include <linux/netfilter_ipv6.h>
|
|
#include <linux/export.h>
|
|
#include <net/dsfield.h>
|
|
#include <net/ipv6.h>
|
|
#include <net/addrconf.h>
|
|
|
|
int xfrm6_extract_header(struct sk_buff *skb)
|
|
{
|
|
struct ipv6hdr *iph = ipv6_hdr(skb);
|
|
|
|
XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph);
|
|
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)->optlen = 0;
|
|
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,
|
|
.output = xfrm6_output,
|
|
.output_finish = xfrm6_output_finish,
|
|
.extract_input = xfrm6_extract_input,
|
|
.extract_output = xfrm6_extract_output,
|
|
.transport_finish = xfrm6_transport_finish,
|
|
.local_error = xfrm6_local_error,
|
|
};
|
|
|
|
int __init xfrm6_state_init(void)
|
|
{
|
|
return xfrm_state_register_afinfo(&xfrm6_state_afinfo);
|
|
}
|
|
|
|
void xfrm6_state_fini(void)
|
|
{
|
|
xfrm_state_unregister_afinfo(&xfrm6_state_afinfo);
|
|
}
|