1 /* 2 * Copyright 2006-2012 Haiku, Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _NETINET6_IN6_H_ 6 #define _NETINET6_IN6_H_ 7 8 9 #include <sys/types.h> 10 #include <stdint.h> 11 12 13 struct in6_addr { 14 uint8_t s6_addr[16]; 15 }; 16 17 /* IP Version 6 socket address. */ 18 struct sockaddr_in6 { 19 uint8_t sin6_len; 20 uint8_t sin6_family; 21 uint16_t sin6_port; 22 uint32_t sin6_flowinfo; 23 struct in6_addr sin6_addr; 24 uint32_t sin6_scope_id; 25 }; 26 27 28 #define IN6ADDR_ANY_INIT {{ \ 29 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 30 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }} 31 #define IN6ADDR_LOOPBACK_INIT {{ \ 32 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 33 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }} 34 #define IN6ADDR_NODELOCAL_ALLNODES_INIT {{ \ 35 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 36 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }} 37 #define IN6ADDR_LINKLOCAL_ALLNODES_INIT {{ \ 38 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 39 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }} 40 #define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT {{ \ 41 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 42 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }} 43 44 extern const struct in6_addr in6addr_any; 45 extern const struct in6_addr in6addr_loopback; 46 47 48 struct ipv6_mreq { 49 struct in6_addr ipv6mr_multiaddr; 50 unsigned ipv6mr_interface; 51 }; 52 53 54 struct in6_pktinfo { 55 struct in6_addr ipi6_addr; /* src/dst IPv6 address */ 56 unsigned int ipi6_ifindex; /* send/recv interface index */ 57 }; 58 59 60 /* Non-standard helper defines (same as in FreeBSD, though) */ 61 #define __IPV6_ADDR_SCOPE_NODELOCAL 0x01 62 #define __IPV6_ADDR_SCOPE_INTFACELOCAL 0x01 63 #define __IPV6_ADDR_SCOPE_LINKLOCAL 0x02 64 #define __IPV6_ADDR_SCOPE_SITELOCAL 0x05 65 #define __IPV6_ADDR_SCOPE_ORGLOCAL 0x08 66 #define __IPV6_ADDR_SCOPE_GLOBAL 0x0e 67 68 #define __IPV6_ADDR_MC_SCOPE(a) ((a)->s6_addr[1] & 0x0f) 69 70 71 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 72 (!memcmp((a)->s6_addr, in6addr_any.s6_addr, sizeof(struct in6_addr))) 73 74 #define IN6_IS_ADDR_LOOPBACK(a) \ 75 (!memcmp((a)->s6_addr, in6addr_loopback.s6_addr, sizeof(struct in6_addr))) 76 77 #define IN6_IS_ADDR_MULTICAST(a) \ 78 ((a)->s6_addr[0] == 0xff) 79 80 #define IN6_IS_ADDR_LINKLOCAL(a) \ 81 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80)) 82 83 #define IN6_IS_ADDR_SITELOCAL(a) \ 84 (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0)) 85 86 #define IN6_IS_ADDR_V4MAPPED(a) \ 87 ((a)->s6_addr[0] == 0x00 && (a)->s6_addr[1] == 0x00 \ 88 && (a)->s6_addr[2] == 0x00 && (a)->s6_addr[3] == 0x00 \ 89 && (a)->s6_addr[4] == 0x00 && (a)->s6_addr[5] == 0x00 \ 90 && (a)->s6_addr[6] == 0x00 && (a)->s6_addr[9] == 0x00 \ 91 && (a)->s6_addr[8] == 0x00 && (a)->s6_addr[9] == 0x00 \ 92 && (a)->s6_addr[10] == 0xff && (a)->s6_addr[11] == 0xff) 93 94 #define IN6_IS_ADDR_V4COMPAT(a) \ 95 ((a)->s6_addr[0] == 0x00 && (a)->s6_addr[1] == 0x00 \ 96 && (a)->s6_addr[2] == 0x00 && (a)->s6_addr[3] == 0x00 \ 97 && (a)->s6_addr[4] == 0x00 && (a)->s6_addr[5] == 0x00 \ 98 && (a)->s6_addr[6] == 0x00 && (a)->s6_addr[9] == 0x00 \ 99 && (a)->s6_addr[8] == 0x00 && (a)->s6_addr[9] == 0x00 \ 100 && (a)->s6_addr[10] == 0x00 && (a)->s6_addr[11] == 0x01) 101 102 #define IN6_IS_ADDR_MC_NODELOCAL(a) \ 103 (IN6_IS_ADDR_MULTICAST(a) && __IPV6_ADDR_MC_SCOPE(a) \ 104 == __IPV6_ADDR_SCOPE_NODELOCAL) 105 106 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ 107 (IN6_IS_ADDR_MULTICAST(a) && __IPV6_ADDR_MC_SCOPE(a) \ 108 == __IPV6_ADDR_SCOPE_LINKLOCAL) 109 110 #define IN6_IS_ADDR_MC_SITELOCAL(a) \ 111 (IN6_IS_ADDR_MULTICAST(a) && __IPV6_ADDR_MC_SCOPE(a) \ 112 == __IPV6_ADDR_SCOPE_SITELOCAL) 113 114 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ 115 (IN6_IS_ADDR_MULTICAST(a) && __IPV6_ADDR_MC_SCOPE(a) \ 116 == __IPV6_ADDR_SCOPE_ORGLOCAL) 117 118 #define IN6_IS_ADDR_MC_GLOBAL(a) \ 119 (IN6_IS_ADDR_MULTICAST(a) && __IPV6_ADDR_MC_SCOPE(a) \ 120 == __IPV6_ADDR_SCOPE_GLOBAL) 121 122 /* From RFC 2292 (Advanced Sockets API for IPv6) */ 123 #define IN6_ARE_ADDR_EQUAL(a, b) \ 124 (!memcmp((a)->s6_addr, (b)->s6_addr, sizeof(struct in6_addr))) 125 126 /* maximal length of the string representation of an IPv6 address */ 127 #define INET6_ADDRSTRLEN 46 128 129 130 #endif /* _NETINET6_IN6_H_ */ 131