ntp_rfc2553.h revision 132451
1/* 2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the project nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30/* 31 * Copyright (c) 1982, 1986, 1990, 1993 32 * The Regents of the University of California. All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. All advertising materials mentioning features or use of this software 43 * must display the following acknowledgement: 44 * This product includes software developed by the University of 45 * California, Berkeley and its contributors. 46 * 4. Neither the name of the University nor the names of its contributors 47 * may be used to endorse or promote products derived from this software 48 * without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 60 * SUCH DAMAGE. 61 * 62 * @(#)in.h 8.3 (Berkeley) 1/3/94 63 */ 64 65/* 66 * Compatability shims with the rfc2553 API to simplify ntp. 67 */ 68#ifndef _NTP_RFC2553_H_ 69#define _NTP_RFC2553_H_ 70 71#if defined(_SS_MAXSIZE) || defined(_SS_SIZE) 72#define HAVE_IPV6 73#else 74 75#include <sys/types.h> 76#include "ntp_types.h" 77 78#ifndef AF_INET6 79#define AF_INET6 AF_MAX 80#define PF_INET6 AF_INET6 81#endif 82 83#ifndef HAVE_TYPE_U_INT8_T 84typedef u_char u_int8_t; 85typedef u_short u_int16_t; 86typedef u_int32 u_int32_t; 87#endif /* HAVE_TYPE_U_INT8_T */ 88 89#ifndef HAVE_TYPE_U_INT64_T 90typedef struct u_int64_t { u_int32 val[2]; } u_int64_t; 91#endif /* HAVE_TYPE_U_INT64_T */ 92 93/* 94 * IPv6 address 95 */ 96#ifdef SYS_WINNT 97#define in6_addr in_addr6 98#else 99/* 100 * Don't include any additional IPv6 definitions 101 * We are defining our own here. 102 */ 103#define ISC_IPV6_H 1 104 105struct in6_addr { 106 union { 107 u_int8_t __u6_addr8[16]; 108 u_int16_t __u6_addr16[8]; 109 u_int32_t __u6_addr32[4]; 110 } __u6_addr; /* 128-bit IP6 address */ 111}; 112 113#define s6_addr __u6_addr.__u6_addr8 114#endif 115 116/* 117 * Definition of some useful macros to handle IP6 addresses 118 */ 119#ifdef SYS_WINNT 120#define IN6ADDR_ANY_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }} 121#else 122#define IN6ADDR_ANY_INIT \ 123 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 124 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 125#endif 126 127extern const struct in6_addr in6addr_any; 128 129#define SIN6_LEN 130#ifndef HAVE_SOCKADDR_IN6 131struct sockaddr_in6 { 132#ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR 133 u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 134 u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */ 135#else 136 short sin6_family; /* AF_INET6 (sa_family_t) */ 137#endif 138 u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 139 u_int32_t sin6_flowinfo; /* IP6 flow information */ 140 struct in6_addr sin6_addr; /* IP6 address */ 141 u_int32_t sin6_scope_id; /* scope zone index */ 142}; 143#endif 144 145/* 146 * Unspecified 147 */ 148#ifndef IN6_IS_ADDR_UNSPECIFIED 149#define IN6_IS_ADDR_UNSPECIFIED(a) \ 150 ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 151 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 152 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 153 (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 154#endif 155/* 156 * Multicast 157 */ 158#ifndef IN6_IS_ADDR_MULTICAST 159#define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 160#endif 161 162/* 163 * RFC 2553: protocol-independent placeholder for socket addresses 164 */ 165#define _SS_MAXSIZE 128 166#define _SS_ALIGNSIZE (sizeof(u_int64_t)) 167#ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR 168#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) - sizeof(u_int8_t)) 169#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) - sizeof(u_int8_t) - \ 170 _SS_PAD1SIZE - _SS_ALIGNSIZE) 171#else 172#define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(short)) 173#define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(short) - \ 174 _SS_PAD1SIZE - _SS_ALIGNSIZE) 175#endif /* HAVE_SA_LEN_IN_STRUCT_SOCKADDR */ 176 177struct sockaddr_storage { 178#ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR 179 u_int8_t ss_len; /* address length */ 180 u_int8_t ss_family; /* address family */ 181#else 182 short ss_family; /* address family */ 183#endif 184 char __ss_pad1[_SS_PAD1SIZE]; 185 u_int64_t __ss_align; /* force desired structure storage alignment */ 186 char __ss_pad2[_SS_PAD2SIZE]; 187}; 188 189struct addrinfo { 190 int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ 191 int ai_family; /* PF_xxx */ 192 int ai_socktype; /* SOCK_xxx */ 193 int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 194 size_t ai_addrlen; /* length of ai_addr */ 195 char *ai_canonname; /* canonical name for hostname */ 196 struct sockaddr *ai_addr; /* binary address */ 197 struct addrinfo *ai_next; /* next structure in linked list */ 198}; 199 200/* 201 * Error return codes from getaddrinfo() 202 */ 203#define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ 204#define EAI_AGAIN 2 /* temporary failure in name resolution */ 205#define EAI_BADFLAGS 3 /* invalid value for ai_flags */ 206#define EAI_FAIL 4 /* non-recoverable failure in name resolution */ 207#define EAI_FAMILY 5 /* ai_family not supported */ 208#define EAI_MEMORY 6 /* memory allocation failure */ 209#define EAI_NODATA 7 /* no address associated with hostname */ 210#define EAI_NONAME 8 /* hostname nor servname provided, or not known */ 211#define EAI_SERVICE 9 /* servname not supported for ai_socktype */ 212#define EAI_SOCKTYPE 10 /* ai_socktype not supported */ 213#define EAI_SYSTEM 11 /* system error returned in errno */ 214#define EAI_BADHINTS 12 215#define EAI_PROTOCOL 13 216#define EAI_MAX 14 217 218/* 219 * Flag values for getaddrinfo() 220 */ 221#define AI_PASSIVE 0x00000001 /* get address to use bind() */ 222#define AI_CANONNAME 0x00000002 /* fill ai_canonname */ 223#define AI_NUMERICHOST 0x00000004 /* prevent name resolution */ 224/* valid flags for addrinfo */ 225#define AI_MASK \ 226 (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG) 227 228#define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */ 229 230/* 231 * Constants for getnameinfo() 232 */ 233#define NI_MAXHOST 1025 234#define NI_MAXSERV 32 235 236/* 237 * Flag values for getnameinfo() 238 */ 239#define NI_NOFQDN 0x00000001 240#define NI_NUMERICHOST 0x00000002 241#define NI_NAMEREQD 0x00000004 242#define NI_NUMERICSERV 0x00000008 243#define NI_DGRAM 0x00000010 244#define NI_WITHSCOPEID 0x00000020 245 246int getaddrinfo P((const char *, const char *, 247 const struct addrinfo *, struct addrinfo **)); 248int getnameinfo P((const struct sockaddr *, u_int, char *, 249 size_t, char *, size_t, int)); 250void freeaddrinfo P((struct addrinfo *)); 251char *gai_strerror P((int)); 252 253#endif /* _SS_MAXSIZE */ 254#endif /* !_NTP_RFC2553_H_ */ 255