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[IPSEC]: Fix inter address family IPsec tunnel handling.

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Signed-off-by: Kazunori MIYAZAWA <kazunori@miyazawa.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kazunori MIYAZAWA
2008-03-24 14:51:51 -07:00
committed by David S. Miller
parent fa86d322d8
commit df9dcb4588
10 changed files with 113 additions and 21 deletions
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23
include/net/xfrm.h
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@@ -204,6 +204,7 @@ struct xfrm_state
* transformer. */
const struct xfrm_type *type;
struct xfrm_mode *inner_mode;
struct xfrm_mode *inner_mode_iaf;
struct xfrm_mode *outer_mode;
/* Security context */
@@ -387,6 +388,27 @@ enum {
extern int xfrm_register_mode(struct xfrm_mode *mode, int family);
extern int xfrm_unregister_mode(struct xfrm_mode *mode, int family);
static inline int xfrm_af2proto(unsigned int family)
{
switch(family) {
case AF_INET:
return IPPROTO_IPIP;
case AF_INET6:
return IPPROTO_IPV6;
default:
return 0;
}
}
static inline struct xfrm_mode *xfrm_ip2inner_mode(struct xfrm_state *x, int ipproto)
{
if ((ipproto == IPPROTO_IPIP && x->props.family == AF_INET) ||
(ipproto == IPPROTO_IPV6 && x->props.family == AF_INET6))
return x->inner_mode;
else
return x->inner_mode_iaf;
}
struct xfrm_tmpl
{
/* id in template is interpreted as:
@@ -1253,6 +1275,7 @@ extern int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi,
extern int xfrm_input_resume(struct sk_buff *skb, int nexthdr);
extern int xfrm_output_resume(struct sk_buff *skb, int err);
extern int xfrm_output(struct sk_buff *skb);
extern int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb);
extern int xfrm4_extract_header(struct sk_buff *skb);
extern int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb);
extern int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,