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[NETFILTER]: xt_policy: use the new union nf_inet_addr 

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jan Engelhardt 2008-01-14 23:42:06 -08:00 committed by David S. Miller
parent 57de0abbff
commit 917b6fbd6e
2 changed files with 27 additions and 11 deletions
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23
include/linux/netfilter/xt_policy.h
View File

@ -27,18 +27,33 @@ struct xt_policy_spec
reqid:1;
};
#ifndef __KERNEL__
union xt_policy_addr
{
struct in_addr a4;
struct in6_addr a6;
};
#endif
struct xt_policy_elem
{
union xt_policy_addr saddr;
union xt_policy_addr smask;
union xt_policy_addr daddr;
union xt_policy_addr dmask;
union {
#ifdef __KERNEL__
struct {
union nf_inet_addr saddr;
union nf_inet_addr smask;
union nf_inet_addr daddr;
union nf_inet_addr dmask;
};
#else
struct {
union xt_policy_addr saddr;
union xt_policy_addr smask;
union xt_policy_addr daddr;
union xt_policy_addr dmask;
};
#endif
};
__be32 spi;
u_int32_t reqid;
u_int8_t proto;

15
net/netfilter/xt_policy.c
View File

@ -13,6 +13,7 @@
#include <linux/init.h>
#include <net/xfrm.h>
#include <linux/netfilter.h>
#include <linux/netfilter/xt_policy.h>
#include <linux/netfilter/x_tables.h>
@ -21,14 +22,14 @@ MODULE_DESCRIPTION("Xtables IPsec policy matching module");
MODULE_LICENSE("GPL");
static inline bool
xt_addr_cmp(const union xt_policy_addr *a1, const union xt_policy_addr *m,
const union xt_policy_addr *a2, unsigned short family)
xt_addr_cmp(const union nf_inet_addr *a1, const union nf_inet_addr *m,
const union nf_inet_addr *a2, unsigned short family)
{
switch (family) {
case AF_INET:
return !((a1->a4.s_addr ^ a2->a4.s_addr) & m->a4.s_addr);
return ((a1->ip ^ a2->ip) & m->ip) == 0;
case AF_INET6:
return !ipv6_masked_addr_cmp(&a1->a6, &m->a6, &a2->a6);
return ipv6_masked_addr_cmp(&a1->in6, &m->in6, &a2->in6) == 0;
}
return false;
}
@ -38,12 +39,12 @@ match_xfrm_state(const struct xfrm_state *x, const struct xt_policy_elem *e,
unsigned short family)
{
#define MATCH_ADDR(x,y,z) (!e->match.x || \
(xt_addr_cmp(&e->x, &e->y, (z), family) \
(xt_addr_cmp(&e->x, &e->y, (const union nf_inet_addr *)(z), family) \
^ e->invert.x))
#define MATCH(x,y) (!e->match.x || ((e->x == (y)) ^ e->invert.x))
return MATCH_ADDR(saddr, smask, (union xt_policy_addr *)&x->props.saddr) &&
MATCH_ADDR(daddr, dmask, (union xt_policy_addr *)&x->id.daddr) &&
return MATCH_ADDR(saddr, smask, &x->props.saddr) &&
MATCH_ADDR(daddr, dmask, &x->id.daddr) &&
MATCH(proto, x->id.proto) &&
MATCH(mode, x->props.mode) &&
MATCH(spi, x->id.spi) &&