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- /* Copyright (c) 2003-2004, Roger Dingledine
- * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
- * Copyright (c) 2007-2008, The Tor Project, Inc. */
- /* See LICENSE for licensing information */
- /* $Id$ */
- /**
- * \file address.h
- * \brief Headers for address.h
- **/
- #ifndef __ADDRESS_H
- #define __ADDRESS_H
- #define ADDRESS_H_ID "$Id$"
- #include "orconfig.h"
- #include "torint.h"
- #include "compat.h"
- typedef uint8_t maskbits_t;
- struct in_addr;
- /** Holds an IPv4 or IPv6 address. (Uses less memory than struct
- * sockaddr_storage.) */
- typedef struct tor_addr_t
- {
- sa_family_t family;
- union {
- struct in_addr in_addr;
- struct in6_addr in6_addr;
- } addr;
- } tor_addr_t;
- /* DOCDOC*/
- static INLINE uint32_t tor_addr_to_ipv4n(const tor_addr_t *a);
- static INLINE uint32_t tor_addr_to_ipv4h(const tor_addr_t *a);
- static INLINE uint32_t tor_addr_to_mapped_ipv4h(const tor_addr_t *a);
- static INLINE sa_family_t tor_addr_family(const tor_addr_t *a);
- static INLINE const struct in_addr *tor_addr_to_in(const tor_addr_t *a);
- static INLINE const struct in6_addr *tor_addr_to_in6(const tor_addr_t *a);
- static INLINE int tor_addr_eq_ipv4h(const tor_addr_t *a, uint32_t u);
- socklen_t tor_addr_to_sockaddr(const tor_addr_t *a, uint16_t port,
- struct sockaddr *sa_out, socklen_t len);
- void tor_addr_from_sockaddr(tor_addr_t *a, const struct sockaddr *sa);
- static INLINE const struct in6_addr *
- tor_addr_to_in6(const tor_addr_t *a)
- {
- return a->family == AF_INET6 ? &a->addr.in6_addr : NULL;
- }
- #define tor_addr_to_in6_addr8(x) tor_addr_to_in6(x)->s6_addr
- #define tor_addr_to_in6_addr16(x) S6_ADDR16(*tor_addr_to_in6(x))
- #define tor_addr_to_in6_addr32(x) S6_ADDR32(*tor_addr_to_in6(x))
- static INLINE uint32_t
- tor_addr_to_ipv4n(const tor_addr_t *a)
- {
- return a->family == AF_INET ? a->addr.in_addr.s_addr : 0;
- }
- static INLINE uint32_t
- tor_addr_to_ipv4h(const tor_addr_t *a)
- {
- return ntohl(tor_addr_to_ipv4n(a));
- }
- static INLINE uint32_t
- tor_addr_to_mapped_ipv4h(const tor_addr_t *a)
- {
- return ntohl(tor_addr_to_in6_addr32(a)[3]);
- }
- static INLINE sa_family_t
- tor_addr_family(const tor_addr_t *a)
- {
- return a->family;
- }
- static INLINE const struct in_addr *
- tor_addr_to_in(const tor_addr_t *a)
- {
- return a->family == AF_INET ? &a->addr.in_addr : NULL;
- }
- static INLINE int
- tor_addr_eq_ipv4h(const tor_addr_t *a, uint32_t u)
- {
- return a->family == AF_INET ? (tor_addr_to_ipv4h(a) == u) : 0;
- }
- #define TOR_ADDR_BUF_LEN 48 /* [ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255]
- */
- int tor_addr_lookup(const char *name, uint16_t family, tor_addr_t *addr_out);
- char *tor_dup_addr(const tor_addr_t *addr) ATTR_MALLOC;
- int get_interface_address6(int severity, sa_family_t family, tor_addr_t *addr);
- /** DOCDOC */
- typedef enum {
- CMP_EXACT,
- CMP_SEMANTIC,
- } tor_addr_comparison_t;
- int tor_addr_compare(const tor_addr_t *addr1, const tor_addr_t *addr2,
- tor_addr_comparison_t how);
- int tor_addr_compare_masked(const tor_addr_t *addr1, const tor_addr_t *addr2,
- maskbits_t mask, tor_addr_comparison_t how);
- unsigned int tor_addr_hash(const tor_addr_t *addr);
- int tor_addr_is_v4(const tor_addr_t *addr);
- int tor_addr_is_internal(const tor_addr_t *ip, int for_listening) ATTR_PURE;
- int tor_addr_parse_mask_ports(const char *s,
- tor_addr_t *addr_out, maskbits_t *mask_out,
- uint16_t *port_min_out, uint16_t *port_max_out);
- const char * tor_addr_to_str(char *dest, const tor_addr_t *addr, int len,
- int decorate);
- int tor_addr_from_str(tor_addr_t *addr, const char *src);
- void tor_addr_copy(tor_addr_t *dest, const tor_addr_t *src);
- void tor_addr_from_ipv4h(tor_addr_t *dest, uint32_t v4addr);
- int tor_addr_is_null(const tor_addr_t *addr);
- int tor_addr_is_loopback(const tor_addr_t *addr);
- /* IPv4 helpers */
- int is_internal_IP(uint32_t ip, int for_listening) ATTR_PURE;
- int parse_addr_port(int severity, const char *addrport, char **address,
- uint32_t *addr, uint16_t *port_out);
- int parse_port_range(const char *port, uint16_t *port_min_out,
- uint16_t *port_max_out);
- int parse_addr_and_port_range(const char *s, uint32_t *addr_out,
- maskbits_t *maskbits_out, uint16_t *port_min_out,
- uint16_t *port_max_out);
- int addr_mask_get_bits(uint32_t mask);
- int addr_mask_cmp_bits(uint32_t a1, uint32_t a2, maskbits_t bits);
- #define INET_NTOA_BUF_LEN 16 /* 255.255.255.255 */
- int tor_inet_ntoa(const struct in_addr *in, char *buf, size_t buf_len);
- char *tor_dup_ip(uint32_t addr) ATTR_MALLOC;
- int get_interface_address(int severity, uint32_t *addr);
- #endif
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