150a69bb5SSascha Wildner /* 250a69bb5SSascha Wildner * Copyright (c) 2004,2005 Damien Miller <djm@mindrot.org> 350a69bb5SSascha Wildner * 450a69bb5SSascha Wildner * Permission to use, copy, modify, and distribute this software for any 550a69bb5SSascha Wildner * purpose with or without fee is hereby granted, provided that the above 650a69bb5SSascha Wildner * copyright notice and this permission notice appear in all copies. 750a69bb5SSascha Wildner * 850a69bb5SSascha Wildner * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 950a69bb5SSascha Wildner * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1050a69bb5SSascha Wildner * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 1150a69bb5SSascha Wildner * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1250a69bb5SSascha Wildner * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1350a69bb5SSascha Wildner * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 1450a69bb5SSascha Wildner * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1550a69bb5SSascha Wildner */ 1650a69bb5SSascha Wildner 1750a69bb5SSascha Wildner /* Address handling routines */ 1850a69bb5SSascha Wildner 1950a69bb5SSascha Wildner #ifndef _ADDR_H 2050a69bb5SSascha Wildner #define _ADDR_H 2150a69bb5SSascha Wildner 2250a69bb5SSascha Wildner #include <sys/socket.h> 2350a69bb5SSascha Wildner #include <netinet/in.h> 2450a69bb5SSascha Wildner 2550a69bb5SSascha Wildner struct xaddr { 2650a69bb5SSascha Wildner sa_family_t af; 2750a69bb5SSascha Wildner union { 2850a69bb5SSascha Wildner struct in_addr v4; 2950a69bb5SSascha Wildner struct in6_addr v6; 3050a69bb5SSascha Wildner u_int8_t addr8[16]; 3150a69bb5SSascha Wildner u_int16_t addr16[8]; 3250a69bb5SSascha Wildner u_int32_t addr32[4]; 3350a69bb5SSascha Wildner } xa; /* 128-bit address */ 3450a69bb5SSascha Wildner u_int32_t scope_id; /* iface scope id for v6 */ 3550a69bb5SSascha Wildner #define v4 xa.v4 3650a69bb5SSascha Wildner #define v6 xa.v6 3750a69bb5SSascha Wildner #define addr8 xa.addr8 3850a69bb5SSascha Wildner #define addr16 xa.addr16 3950a69bb5SSascha Wildner #define addr32 xa.addr32 4050a69bb5SSascha Wildner }; 4150a69bb5SSascha Wildner 4250a69bb5SSascha Wildner int addr_unicast_masklen(int af); 4350a69bb5SSascha Wildner int addr_xaddr_to_sa(const struct xaddr *xa, struct sockaddr *sa, 4450a69bb5SSascha Wildner socklen_t *len, u_int16_t port); 4550a69bb5SSascha Wildner int addr_sa_to_xaddr(struct sockaddr *sa, socklen_t slen, struct xaddr *xa); 4650a69bb5SSascha Wildner int addr_netmask(int af, u_int l, struct xaddr *n); 4750a69bb5SSascha Wildner int addr_hostmask(int af, u_int l, struct xaddr *n); 4850a69bb5SSascha Wildner int addr_invert(struct xaddr *n); 4950a69bb5SSascha Wildner int addr_pton(const char *p, struct xaddr *n); 5050a69bb5SSascha Wildner int addr_sa_pton(const char *h, const char *s, struct sockaddr *sa, 5150a69bb5SSascha Wildner socklen_t slen); 5250a69bb5SSascha Wildner int addr_pton_cidr(const char *p, struct xaddr *n, u_int *l); 5350a69bb5SSascha Wildner int addr_ntop(const struct xaddr *n, char *p, size_t len); 5450a69bb5SSascha Wildner int addr_and(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b); 55*ba1276acSMatthew Dillon int addr_or(struct xaddr *dst, const struct xaddr *a, const struct xaddr *b); 5650a69bb5SSascha Wildner int addr_cmp(const struct xaddr *a, const struct xaddr *b); 5750a69bb5SSascha Wildner int addr_is_all0s(const struct xaddr *n); 5850a69bb5SSascha Wildner int addr_host_is_all0s(const struct xaddr *n, u_int masklen); 59*ba1276acSMatthew Dillon int addr_host_to_all0s(struct xaddr *a, u_int masklen); 60*ba1276acSMatthew Dillon int addr_host_to_all1s(struct xaddr *a, u_int masklen); 6150a69bb5SSascha Wildner int addr_netmatch(const struct xaddr *host, const struct xaddr *net, 6250a69bb5SSascha Wildner u_int masklen); 63*ba1276acSMatthew Dillon void addr_increment(struct xaddr *a); 6450a69bb5SSascha Wildner #endif /* _ADDR_H */ 65