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authorPatrick McHardy <kaber@trash.net>2006-02-04 02:19:09 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-02-04 23:51:28 -0800
commit0047c65a60fa3b6607b55e058ea6a89f39cb3f28 (patch)
tree27fd894c370f7930e38c9e0e83cf9b572b51f4ba /net/ipv4
parent878c41ce5747e1b417bdd92a694c33dc4bd6ec02 (diff)
[NETFILTER]: Prepare {ipt,ip6t}_policy match for x_tables unification
The IPv4 and IPv6 version of the policy match are identical besides address comparison and the data structure used for userspace communication. Unify the data structures to break compatiblity now (before it is released), so we can port it to x_tables in 2.6.17. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/netfilter/ipt_policy.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/ipv4/netfilter/ipt_policy.c b/net/ipv4/netfilter/ipt_policy.c
index a48949a3a75..5a7a265280f 100644
--- a/net/ipv4/netfilter/ipt_policy.c
+++ b/net/ipv4/netfilter/ipt_policy.c
@@ -26,10 +26,13 @@ MODULE_LICENSE("GPL");
static inline int
match_xfrm_state(struct xfrm_state *x, const struct ipt_policy_elem *e)
{
-#define MATCH(x,y) (!e->match.x || ((e->x == (y)) ^ e->invert.x))
+#define MATCH_ADDR(x,y,z) (!e->match.x || \
+ ((e->x.a4.s_addr == (e->y.a4.s_addr & (z))) \
+ ^ e->invert.x))
+#define MATCH(x,y) (!e->match.x || ((e->x == (y)) ^ e->invert.x))
- return MATCH(saddr, x->props.saddr.a4 & e->smask) &&
- MATCH(daddr, x->id.daddr.a4 & e->dmask) &&
+ return MATCH_ADDR(saddr, smask, x->props.saddr.a4) &&
+ MATCH_ADDR(daddr, dmask, x->id.daddr.a4) &&
MATCH(proto, x->id.proto) &&
MATCH(mode, x->props.mode) &&
MATCH(spi, x->id.spi) &&