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Diffstat (limited to 'include/linux/netfilter/ipset/pfxlen.h')
-rw-r--r--include/linux/netfilter/ipset/pfxlen.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/netfilter/ipset/pfxlen.h b/include/linux/netfilter/ipset/pfxlen.h
index 0e1fb50da562..199fd11fedc0 100644
--- a/include/linux/netfilter/ipset/pfxlen.h
+++ b/include/linux/netfilter/ipset/pfxlen.h
@@ -2,7 +2,8 @@
#define _PFXLEN_H
#include <asm/byteorder.h>
-#include <linux/netfilter.h>
+#include <linux/netfilter.h>
+#include <net/tcp.h>
/* Prefixlen maps, by Jan Engelhardt */
extern const union nf_inet_addr ip_set_netmask_map[];
@@ -32,4 +33,12 @@ ip_set_hostmask6(u8 pfxlen)
return &ip_set_hostmask_map[pfxlen].ip6[0];
}
+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 */