dist/ntp/include/ntp_rfc2553.h

   1 /*      $NetBSD: ntp_rfc2553.h,v 1.2 2003/12/04 16:23:36 drochner Exp $ */
   2
   3 /*
   4  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the project nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * Copyright (c) 1982, 1986, 1990, 1993
  34  *      The Regents of the University of California.  All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. All advertising materials mentioning features or use of this software
  45  *    must display the following acknowledgement:
  46  *      This product includes software developed by the University of
  47  *      California, Berkeley and its contributors.
  48  * 4. Neither the name of the University nor the names of its contributors
  49  *    may be used to endorse or promote products derived from this software
  50  *    without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  53  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  54  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  55  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  56  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  57  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  58  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  59  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  60  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  61  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  62  * SUCH DAMAGE.
  63  *
  64  *      @(#)in.h        8.3 (Berkeley) 1/3/94
  65  */
  66
  67 /*
  68  * Compatability shims with the rfc2553 API to simplify ntp.
  69  */
  70 #ifndef _NTP_RFC2553_H_
  71 #define _NTP_RFC2553_H_
  72
  73 /*
  74  * Ensure that we include the configuration file before we check
  75  * for IPV6
  76  */
  77 #include <config.h>
  78
  79 #include <netdb.h>
  80
  81 #include "ntp_types.h"
  82
  83 /*
  84  * Don't include any additional IPv6 definitions
  85  * We are defining our own here.
  86  */
  87 #define ISC_IPV6_H 1
  88
  89  /*
  90  * If various macros are not defined we need to define them
  91  */
  92
  93 #ifndef AF_INET6
  94 #define AF_INET6        AF_MAX
  95 #define PF_INET6        AF_INET6
  96 #endif
  97
  98 #if !defined(_SS_MAXSIZE) && !defined(_SS_ALIGNSIZE)
  99
 100 #define _SS_MAXSIZE     128
 101 #define _SS_ALIGNSIZE   (sizeof(ntp_uint64_t))
 102 #ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR
 103 #define _SS_PAD1SIZE    (_SS_ALIGNSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t))
 104 #define _SS_PAD2SIZE    (_SS_MAXSIZE - sizeof(u_char) - sizeof(ntp_u_int8_t) - \
 105                                 _SS_PAD1SIZE - _SS_ALIGNSIZE)
 106 #else
 107 #define _SS_PAD1SIZE    (_SS_ALIGNSIZE - sizeof(short))
 108 #define _SS_PAD2SIZE    (_SS_MAXSIZE - sizeof(short) - \
 109                                 _SS_PAD1SIZE - _SS_ALIGNSIZE)
 110 #endif /* HAVE_SA_LEN_IN_STRUCT_SOCKADDR */
 111 #endif
 112
 113 /*
 114  * If we don't have the sockaddr_storage structure
 115  * we need to define it
 116  */
 117
 118 #ifndef HAVE_STRUCT_SOCKADDR_STORAGE
 119 struct sockaddr_storage {
 120 #ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR
 121         ntp_u_int8_t    ss_len;         /* address length */
 122         ntp_u_int8_t    ss_family;      /* address family */
 123 #else
 124         short           ss_family;      /* address family */
 125 #endif
 126         char            __ss_pad1[_SS_PAD1SIZE];
 127         ntp_uint64_t    __ss_align;     /* force desired structure storage alignment */
 128         char            __ss_pad2[_SS_PAD2SIZE];
 129 };
 130 #endif
 131
 132 /*
 133  * Finally if the platform doesn't support IPv6 we need some
 134  * additional definitions
 135  */
 136
 137 /*
 138  * Flag values for getaddrinfo()
 139  */
 140 #ifndef AI_NUMERICHOST
 141 #define AI_PASSIVE      0x00000001 /* get address to use bind() */
 142 #define AI_CANONNAME    0x00000002 /* fill ai_canonname */
 143 #define AI_NUMERICHOST  0x00000004 /* prevent name resolution */
 144 /* valid flags for addrinfo */
 145 #define AI_MASK \
 146     (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST | AI_ADDRCONFIG)
 147
 148 #define AI_ADDRCONFIG   0x00000400 /* only if any address is assigned */
 149 #endif
 150
 151 #ifndef ISC_PLATFORM_HAVEIPV6
 152 /*
 153  * Definition of some useful macros to handle IP6 addresses
 154  */
 155 #ifdef ISC_PLATFORM_NEEDIN6ADDRANY
 156 #ifdef SYS_WINNT
 157 #define IN6ADDR_ANY_INIT        {{ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }}
 158 #else
 159 #define IN6ADDR_ANY_INIT \
 160         {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
 161             0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
 162 #endif
 163 #endif
 164
 165
 166 /*
 167  * IPv6 address
 168  */
 169 #ifdef SYS_WINNT
 170 #define in6_addr in_addr6
 171 #else
 172
 173 struct in6_addr {
 174         union {
 175                 ntp_u_int8_t   __u6_addr8[16];
 176                 ntp_u_int16_t  __u6_addr16[8];
 177                 ntp_u_int32_t  __u6_addr32[4];
 178         } __u6_addr;                    /* 128-bit IP6 address */
 179 };
 180
 181 #define s6_addr   __u6_addr.__u6_addr8
 182 #endif
 183
 184 #if defined(ISC_PLATFORM_HAVEIPV6) && defined(ISC_PLATFORM_NEEDIN6ADDRANY)
 185 extern const struct in6_addr in6addr_any;
 186 #endif
 187
 188 #define SIN6_LEN
 189 #ifndef HAVE_SOCKADDR_IN6
 190 struct sockaddr_in6 {
 191 #ifdef HAVE_SA_LEN_IN_STRUCT_SOCKADDR
 192         ntp_u_int8_t    sin6_len;       /* length of this struct(sa_family_t)*/
 193         ntp_u_int8_t    sin6_family;    /* AF_INET6 (sa_family_t) */
 194 #else
 195         short           sin6_family;    /* AF_INET6 (sa_family_t) */
 196 #endif
 197         ntp_u_int16_t   sin6_port;      /* Transport layer port # (in_port_t)*/
 198         ntp_u_int32_t   sin6_flowinfo;  /* IP6 flow information */
 199         struct in6_addr sin6_addr;      /* IP6 address */
 200         ntp_u_int32_t   sin6_scope_id;  /* scope zone index */
 201 };
 202 #endif
 203
 204 /*
 205  * Unspecified
 206  */
 207 #ifndef IN6_IS_ADDR_UNSPECIFIED
 208 #define IN6_IS_ADDR_UNSPECIFIED(a)      \
 209         ((*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) &&     \
 210          (*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) &&     \
 211          (*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) &&     \
 212          (*(const ntp_u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
 213 #endif
 214 /*
 215  * Multicast
 216  */
 217 #ifndef IN6_IS_ADDR_MULTICAST
 218 #define IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)
 219 #endif
 220 /*
 221  * Unicast link / site local.
 222  */
 223 #ifndef IN6_IS_ADDR_LINKLOCAL
 224 #define IN6_IS_ADDR_LINKLOCAL(a)        (\
 225 (*((u_long *)((a)->s6_addr)    ) == 0xfe) && \
 226 ((*((u_long *)((a)->s6_addr) + 1) & 0xc0) == 0x80))
 227 #endif
 228
 229 #ifndef IN6_IS_ADDR_SITELOCAL
 230 #define IN6_IS_ADDR_SITELOCAL(a)        (\
 231 (*((u_long *)((a)->s6_addr)    ) == 0xfe) && \
 232 ((*((u_long *)((a)->s6_addr) + 1) & 0xc0) == 0xc0))
 233 #endif
 234
 235 struct addrinfo {
 236         int     ai_flags;       /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */
 237         int     ai_family;      /* PF_xxx */
 238         int     ai_socktype;    /* SOCK_xxx */
 239         int     ai_protocol;    /* 0 or IPPROTO_xxx for IPv4 and IPv6 */
 240         size_t  ai_addrlen;     /* length of ai_addr */
 241         char    *ai_canonname;  /* canonical name for hostname */
 242         struct  sockaddr *ai_addr;      /* binary address */
 243         struct  addrinfo *ai_next;      /* next structure in linked list */
 244 };
 245
 246 /*
 247  * Error return codes from getaddrinfo()
 248  */
 249 #define EAI_ADDRFAMILY   1      /* address family for hostname not supported */
 250 #define EAI_AGAIN        2      /* temporary failure in name resolution */
 251 #define EAI_BADFLAGS     3      /* invalid value for ai_flags */
 252 #define EAI_FAIL         4      /* non-recoverable failure in name resolution */
 253 #define EAI_FAMILY       5      /* ai_family not supported */
 254 #define EAI_MEMORY       6      /* memory allocation failure */
 255 #define EAI_NODATA       7      /* no address associated with hostname */
 256 #define EAI_NONAME       8      /* hostname nor servname provided, or not known */
 257 #define EAI_SERVICE      9      /* servname not supported for ai_socktype */
 258 #define EAI_SOCKTYPE    10      /* ai_socktype not supported */
 259 #define EAI_SYSTEM      11      /* system error returned in errno */
 260 #define EAI_BADHINTS    12
 261 #define EAI_PROTOCOL    13
 262 #define EAI_MAX         14
 263
 264
 265 int     getaddrinfo P((const char *, const char *,
 266                          const struct addrinfo *, struct addrinfo **));
 267 int     getnameinfo P((const struct sockaddr *, u_int, char *,
 268                          size_t, char *, size_t, int));
 269 void    freeaddrinfo P((struct addrinfo *));
 270 char    *gai_strerror P((int));
 271
 272 /*
 273  * Constants for getnameinfo()
 274  */
 275 #ifndef NI_MAXHOST
 276 #define NI_MAXHOST      1025
 277 #define NI_MAXSERV      32
 278 #endif
 279
 280 /*
 281  * Flag values for getnameinfo()
 282  */
 283 #ifndef NI_NUMERICHOST
 284 #define NI_NOFQDN       0x00000001
 285 #define NI_NUMERICHOST  0x00000002
 286 #define NI_NAMEREQD     0x00000004
 287 #define NI_NUMERICSERV  0x00000008
 288 #define NI_DGRAM        0x00000010
 289 #define NI_WITHSCOPEID  0x00000020
 290 #endif
 291
 292 #endif /* ISC_PLATFORM_HAVEIPV6 */
 293
 294 #endif /* !_NTP_RFC2553_H_ */