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 /* 72 * Ensure that we include the configuration file before we check 73 * for IPV6 74 */ 75 #include <config.h> 76 77 #include <netdb.h> 78 79 #include "ntp_types.h" 80 81 /* 82 * Don't include any additional IPv6 definitions 83 * We are defining our own here. 84 */ 85 #define ISC_IPV6_H 1 86 87 /* 88 * If various macros are not defined we need to define them 89 */ 90 91 #ifndef AF_INET6 92 #define AF_INET6 AF_MAX 93 #define PF_INET6 AF_INET6 94 #endif 95 96 #if !defined(_SS_MAXSIZE) && !defined(_SS_ALIGNSIZE) 97 98 #define _SS_MAXSIZE 128 99 #define _SS_ALIGNSIZE (sizeof(ntp_uint64_t)) 100 #ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR 101 #define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t)) 102 #define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t) - \ 103 _SS_PAD1SIZE - _SS_ALIGNSIZE) 104 #else 105 #define _SS_PAD1SIZE (_SS_ALIGNSIZE - sizeof(short)) 106 #define _SS_PAD2SIZE (_SS_MAXSIZE - sizeof(short) - \ 107 _SS_PAD1SIZE - _SS_ALIGNSIZE) 108 #endif /* HAVE_SA_LEN_IN_STRUCT_SOCKADDR */ 109 #endif 110 111 /* 112 * If we don't have the sockaddr_storage structure 113 * we need to define it 114 */ 115 116 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE 117 struct sockaddr_storage { 118 #ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR 119 ntp_u_int8_t ss_len; /* address length */ 120 ntp_u_int8_t ss_family; /* address family */ 121 #else 122 short ss_family; /* address family */ 123 #endif 124 char __ss_pad1[_SS_PAD1SIZE]; 125 ntp_uint64_t __ss_align; /* force desired structure storage alignment */ 126 char __ss_pad2[_SS_PAD2SIZE]; 127 }; 128 #endif 129 130 /* 131 * Finally if the platform doesn't support IPv6 we need some 132 * additional definitions 133 */ 134 135 /* 136 * Flag values for getaddrinfo() 137 */ 138 #ifndef AI_NUMERICHOST 139 #define AI_PASSIVE 0x00000001 /* get address to use bind() */ 140 #define AI_CANONNAME 0x00000002 /* fill ai_canonname */ 141 #define AI_NUMERICHOST 0x00000004 /* prevent name resolution */ 142 /* valid flags for addrinfo */ 143 #define AI_MASK \ 144 (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG) 145 146 #define AI_ADDRCONFIG 0x00000400 /* only if any address is assigned */ 147 #endif 148 149 #ifndef ISC_PLATFORM_HAVEIPV6 150 /* 151 * Definition of some useful macros to handle IP6 addresses 152 */ 153 #ifdef ISC_PLATFORM_NEEDIN6ADDRANY 154 #ifdef SYS_WINNT 155 #define IN6ADDR_ANY_INIT {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }} 156 #else 157 #define IN6ADDR_ANY_INIT \ 158 {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ 159 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}} 160 #endif 161 #endif 162 163 164 /* 165 * IPv6 address 166 */ 167 #ifdef SYS_WINNT 168 #define in6_addr in_addr6 169 #else 170 171 struct in6_addr { 172 union { 173 ntp_u_int8_t __u6_addr8[16]; 174 ntp_u_int16_t __u6_addr16[8]; 175 ntp_u_int32_t __u6_addr32[4]; 176 } __u6_addr; /* 128-bit IP6 address */ 177 }; 178 179 #define s6_addr __u6_addr.__u6_addr8 180 #endif 181 182 #if defined(ISC_PLATFORM_HAVEIPV6) && defined(ISC_PLATFORM_NEEDIN6ADDRANY) 183 extern const struct in6_addr in6addr_any; 184 #endif 185 186 #define SIN6_LEN 187 #ifndef HAVE_SOCKADDR_IN6 188 struct sockaddr_in6 { 189 #ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR 190 ntp_u_int8_t sin6_len; /* length of this struct(sa_family_t)*/ 191 ntp_u_int8_t sin6_family; /* AF_INET6 (sa_family_t) */ 192 #else 193 short sin6_family; /* AF_INET6 (sa_family_t) */ 194 #endif 195 ntp_u_int16_t sin6_port; /* Transport layer port # (in_port_t)*/ 196 ntp_u_int32_t sin6_flowinfo; /* IP6 flow information */ 197 struct in6_addr sin6_addr; /* IP6 address */ 198 ntp_u_int32_t sin6_scope_id; /* scope zone index */ 199 }; 200 #endif 201 202 /* 203 * Unspecified 204 */ 205 #ifndef IN6_IS_ADDR_UNSPECIFIED 206 #define IN6_IS_ADDR_UNSPECIFIED(a) \ 207 ((*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \ 208 (*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \ 209 (*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \ 210 (*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0)) 211 #endif 212 /* 213 * Multicast 214 */ 215 #ifndef IN6_IS_ADDR_MULTICAST 216 #define IN6_IS_ADDR_MULTICAST(a) ((a)->s6_addr[0] == 0xff) 217 #endif 218 /* 219 * Unicast link / site local. 220 */ 221 #ifndef IN6_IS_ADDR_LINKLOCAL 222 #define IN6_IS_ADDR_LINKLOCAL(a) (\ 223 (*((u_long *)((a)->s6_addr) ) == 0xfe) && \ 224 ((*((u_long *)((a)->s6_addr) + 1) & 0xc0) == 0x80)) 225 #endif 226 227 #ifndef IN6_IS_ADDR_SITELOCAL 228 #define IN6_IS_ADDR_SITELOCAL(a) (\ 229 (*((u_long *)((a)->s6_addr) ) == 0xfe) && \ 230 ((*((u_long *)((a)->s6_addr) + 1) & 0xc0) == 0xc0)) 231 #endif 232 233 struct addrinfo { 234 int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ 235 int ai_family; /* PF_xxx */ 236 int ai_socktype; /* SOCK_xxx */ 237 int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 238 size_t ai_addrlen; /* length of ai_addr */ 239 char *ai_canonname; /* canonical name for hostname */ 240 struct sockaddr *ai_addr; /* binary address */ 241 struct addrinfo *ai_next; /* next structure in linked list */ 242 }; 243 244 /* 245 * Error return codes from getaddrinfo() 246 */ 247 #define EAI_ADDRFAMILY 1 /* address family for hostname not supported */ 248 #define EAI_AGAIN 2 /* temporary failure in name resolution */ 249 #define EAI_BADFLAGS 3 /* invalid value for ai_flags */ 250 #define EAI_FAIL 4 /* non-recoverable failure in name resolution */ 251 #define EAI_FAMILY 5 /* ai_family not supported */ 252 #define EAI_MEMORY 6 /* memory allocation failure */ 253 #define EAI_NODATA 7 /* no address associated with hostname */ 254 #define EAI_NONAME 8 /* hostname nor servname provided, or not known */ 255 #define EAI_SERVICE 9 /* servname not supported for ai_socktype */ 256 #define EAI_SOCKTYPE 10 /* ai_socktype not supported */ 257 #define EAI_SYSTEM 11 /* system error returned in errno */ 258 #define EAI_BADHINTS 12 259 #define EAI_PROTOCOL 13 260 #define EAI_MAX 14 261 262 263 int getaddrinfo P((const char *, const char *, 264 const struct addrinfo *, struct addrinfo **)); 265 int getnameinfo P((const struct sockaddr *, u_int, char *, 266 size_t, char *, size_t, int)); 267 void freeaddrinfo P((struct addrinfo *)); 268 char *gai_strerror P((int)); 269 270 /* 271 * Constants for getnameinfo() 272 */ 273 #ifndef NI_MAXHOST 274 #define NI_MAXHOST 1025 275 #define NI_MAXSERV 32 276 #endif 277 278 /* 279 * Flag values for getnameinfo() 280 */ 281 #ifndef NI_NUMERICHOST 282 #define NI_NOFQDN 0x00000001 283 #define NI_NUMERICHOST 0x00000002 284 #define NI_NAMEREQD 0x00000004 285 #define NI_NUMERICSERV 0x00000008 286 #define NI_DGRAM 0x00000010 287 #define NI_WITHSCOPEID 0x00000020 288 #endif 289 290 #endif /* ISC_PLATFORM_HAVEIPV6 */ 291 292 #endif /* !_NTP_RFC2553_H_ */ 293