diff options
| -rw-r--r-- | include/linux/in.h | 87 |
1 files changed, 74 insertions, 13 deletions
diff --git a/include/linux/in.h b/include/linux/in.h index a8f00cac8f79..f8d607379017 100644 --- a/include/linux/in.h +++ b/include/linux/in.h @@ -246,21 +246,82 @@ struct sockaddr_in { #include <asm/byteorder.h> #ifdef __KERNEL__ -/* Some random defines to make it easier in the kernel.. */ -#define LOOPBACK(x) (((x) & htonl(0xff000000)) == htonl(0x7f000000)) -#define MULTICAST(x) (((x) & htonl(0xf0000000)) == htonl(0xe0000000)) -#define BADCLASS(x) (((x) & htonl(0xf0000000)) == htonl(0xf0000000)) -#define ZERONET(x) (((x) & htonl(0xff000000)) == htonl(0x00000000)) -#define LOCAL_MCAST(x) (((x) & htonl(0xFFFFFF00)) == htonl(0xE0000000)) + +static inline bool ipv4_is_loopback(__be32 addr) +{ + return (addr & htonl(0xff000000)) == htonl(0x7f000000); +} + +static inline bool ipv4_is_multicast(__be32 addr) +{ + return (addr & htonl(0xf0000000)) == htonl(0xe0000000); +} + +static inline bool ipv4_is_local_multicast(__be32 addr) +{ + return (addr & htonl(0xffffff00)) == htonl(0xe0000000); +} + +static inline bool ipv4_is_badclass(__be32 addr) +{ + return (addr & htonl(0xf0000000)) == htonl(0xf0000000); +} + +static inline bool ipv4_is_zeronet(__be32 addr) +{ + return (addr & htonl(0xff000000)) == htonl(0x00000000); +} + +#define LOOPBACK(x) ipv4_is_loopback(x) +#define MULTICAST(x) ipv4_is_multicast(x) +#define BADCLASS(x) ipv4_is_badclass(x) +#define ZERONET(x) ipv4_is_zeronet(x) +#define LOCAL_MCAST(x) ipv4_is_local_multicast(x) /* Special-Use IPv4 Addresses (RFC3330) */ -#define PRIVATE_10(x) (((x) & htonl(0xff000000)) == htonl(0x0A000000)) -#define LINKLOCAL_169(x) (((x) & htonl(0xffff0000)) == htonl(0xA9FE0000)) -#define PRIVATE_172(x) (((x) & htonl(0xfff00000)) == htonl(0xAC100000)) -#define TEST_192(x) (((x) & htonl(0xffffff00)) == htonl(0xC0000200)) -#define ANYCAST_6TO4(x) (((x) & htonl(0xffffff00)) == htonl(0xC0586300)) -#define PRIVATE_192(x) (((x) & htonl(0xffff0000)) == htonl(0xC0A80000)) -#define TEST_198(x) (((x) & htonl(0xfffe0000)) == htonl(0xC6120000)) + +static inline bool ipv4_is_private_10(__be32 addr) +{ + return (addr & htonl(0xff000000)) == htonl(0x0a000000); +} + +static inline bool ipv4_is_private_172(__be32 addr) +{ + return (addr & htonl(0xfff00000)) == htonl(0xac100000); +} + +static inline bool ipv4_is_private_192(__be32 addr) +{ + return (addr & htonl(0xffff0000)) == htonl(0xc0a80000); +} + +static inline bool ipv4_is_linklocal_169(__be32 addr) +{ + return (addr & htonl(0xffff0000)) == htonl(0xa9fe0000); +} + +static inline bool ipv4_is_anycast_6to4(__be32 addr) +{ + return (addr & htonl(0xffffff00)) == htonl(0xc0586300); +} + +static inline bool ipv4_is_test_192(__be32 addr) +{ + return (addr & htonl(0xffffff00)) == htonl(0xc0000200); +} + +static inline bool ipv4_is_test_198(__be32 addr) +{ + return (addr & htonl(0xfffe0000)) == htonl(0xc6120000); +} #endif +#define PRIVATE_10(x) ipv4_is_private_10(x) +#define LINKLOCAL_169(x) ipv4_is_linklocal_169(x) +#define PRIVATE_172(x) ipv4_is_private_172(x) +#define TEST_192(x) ipv4_is_test_192(x) +#define ANYCAST_6TO4(x) ipv4_is_anycast_6to4(x) +#define PRIVATE_192(x) ipv4_is_private_192(x) +#define TEST_198(x) ipv4_is_test_198(x) + #endif /* _LINUX_IN_H */ |