netfilter: ipset: use unified from/to address masking and check the usage

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2011-06-16 18:55:58 +02:00
parent f3dfd1538f
commit e6146e8684
8 changed files with 15 additions and 17 deletions
@@ -35,4 +35,10 @@ ip_set_hostmask6(u8 pfxlen)

 extern u32 ip_set_range_to_cidr(u32 from, u32 to, u8 *cidr);

+#define ip_set_mask_from_to(from, to, cidr)	\
+do {						\
+	from &= ip_set_hostmask(cidr);		\
+	to = from | ~ip_set_hostmask(cidr);	\
+} while (0)
+
 #endif /*_PFXLEN_H */