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[XFRM] STATE: Add source address list.

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Support source address based searching.
Mobile IPv6 will use it.
Based on MIPL2 kernel patch.

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Masahide NAKAMURA
2006-08-23 17:53:57 -07:00
committed by David S. Miller
parent 622dc8281a
commit 6c44e6b7ab
4 changed files with 51 additions and 2 deletions
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26
include/net/xfrm.h
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@@ -95,6 +95,7 @@ struct xfrm_state
{
/* Note: bydst is re-used during gc */
struct list_head bydst;
struct list_head bysrc;
struct list_head byspi;
atomic_t refcnt;
@@ -236,6 +237,7 @@ extern int __xfrm_state_delete(struct xfrm_state *x);
struct xfrm_state_afinfo {
unsigned short family;
struct list_head *state_bydst;
struct list_head *state_bysrc;
struct list_head *state_byspi;
int (*init_flags)(struct xfrm_state *x);
void (*init_tempsel)(struct xfrm_state *x, struct flowi *fl,
@@ -420,6 +422,30 @@ unsigned xfrm_dst_hash(xfrm_address_t *addr, unsigned short family)
return 0;
}
static __inline__
unsigned __xfrm4_src_hash(xfrm_address_t *addr)
{
return __xfrm4_dst_hash(addr);
}
static __inline__
unsigned __xfrm6_src_hash(xfrm_address_t *addr)
{
return __xfrm6_dst_hash(addr);
}
static __inline__
unsigned xfrm_src_hash(xfrm_address_t *addr, unsigned short family)
{
switch (family) {
case AF_INET:
return __xfrm4_src_hash(addr);
case AF_INET6:
return __xfrm6_src_hash(addr);
}
return 0;
}
static __inline__
unsigned __xfrm4_spi_hash(xfrm_address_t *addr, u32 spi, u8 proto)
{