projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| a7b4f989 JK |
1 | #ifndef _PFXLEN_H |
| 2 | #define _PFXLEN_H | |
| 3 | ||
| 4 | #include <asm/byteorder.h> | |
| 15b4d93f | 5 | #include <linux/netfilter.h> |
| d0d9e0a5 | 6 | #include <net/tcp.h> |
| a7b4f989 JK |
7 | |
| 8 | /* Prefixlen maps, by Jan Engelhardt */ | |
| 9 | extern const union nf_inet_addr ip_set_netmask_map[]; | |
| 10 | extern const union nf_inet_addr ip_set_hostmask_map[]; | |
| 11 | ||
| 12 | static inline __be32 | |
| 13 | ip_set_netmask(u8 pfxlen) | |
| 14 | { | |
| 15 | return ip_set_netmask_map[pfxlen].ip; | |
| 16 | } | |
| 17 | ||
| 18 | static inline const __be32 * | |
| 19 | ip_set_netmask6(u8 pfxlen) | |
| 20 | { | |
| 21 | return &ip_set_netmask_map[pfxlen].ip6[0]; | |
| 22 | } | |
| 23 | ||
| 24 | static inline u32 | |
| 25 | ip_set_hostmask(u8 pfxlen) | |
| 26 | { | |
| 27 | return (__force u32) ip_set_hostmask_map[pfxlen].ip; | |
| 28 | } | |
| 29 | ||
| 30 | static inline const __be32 * | |
| 31 | ip_set_hostmask6(u8 pfxlen) | |
| 32 | { | |
| 33 | return &ip_set_hostmask_map[pfxlen].ip6[0]; | |
| 34 | } | |
| 35 | ||
| d0d9e0a5 JK |
36 | extern u32 ip_set_range_to_cidr(u32 from, u32 to, u8 *cidr); |
| 37 | ||
| e6146e86 JK |
38 | #define ip_set_mask_from_to(from, to, cidr) \ |
| 39 | do { \ | |
| 40 | from &= ip_set_hostmask(cidr); \ | |
| 41 | to = from | ~ip_set_hostmask(cidr); \ | |
| 42 | } while (0) | |
| 43 | ||
| a7b4f989 | 44 | #endif /*_PFXLEN_H */ |