dist/dhcp/includes/osdep.h

   1 /* osdep.h
   2
   3    Operating system dependencies... */
   4
   5 /*
   6  * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
   7  * Copyright (c) 1996-2003 by Internet Software Consortium
   8  *
   9  * Permission to use, copy, modify, and distribute this software for any
  10  * purpose with or without fee is hereby granted, provided that the above
  11  * copyright notice and this permission notice appear in all copies.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
  14  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  15  * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
  16  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  17  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  18  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
  19  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  20  *
  21  *   Internet Systems Consortium, Inc.
  22  *   950 Charter Street
  23  *   Redwood City, CA 94063
  24  *   <info@isc.org>
  25  *   http://www.isc.org/
  26  *
  27  * This software has been written for Internet Systems Consortium
  28  * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
  29  * To learn more about Internet Systems Consortium, see
  30  * ``http://www.isc.org/''.  To learn more about Vixie Enterprises,
  31  * see ``http://www.vix.com''.   To learn more about Nominum, Inc., see
  32  * ``http://www.nominum.com''.
  33  */
  34
  35 #if !defined (__ISC_DHCP_OSDEP_H__)
  36 #define __ISC_DHCP_OSDEP_H__
  37
  38 #include "site.h"
  39
  40 /* Porting::
  41
  42    If you add a new network API, you must add a check for it below: */
  43
  44 #if !defined (USE_SOCKETS) && \
  45     !defined (USE_SOCKET_SEND) && \
  46     !defined (USE_SOCKET_RECEIVE) && \
  47     !defined (USE_RAW_SOCKETS) && \
  48     !defined (USE_RAW_SEND) && \
  49     !defined (USE_SOCKET_RECEIVE) && \
  50     !defined (USE_BPF) && \
  51     !defined (USE_BPF_SEND) && \
  52     !defined (USE_BPF_RECEIVE) && \
  53     !defined (USE_LPF) && \
  54     !defined (USE_LPF_SEND) && \
  55     !defined (USE_LPF_RECEIVE) && \
  56     !defined (USE_NIT) && \
  57     !defined (USE_NIT_SEND) && \
  58     !defined (USE_NIT_RECEIVE) && \
  59     !defined (USR_DLPI_SEND) && \
  60     !defined (USE_DLPI_RECEIVE)
  61 #  define USE_DEFAULT_NETWORK
  62 #endif
  63
  64 #if !defined (TIME_MAX)
  65 # define TIME_MAX 2147483647
  66 #endif
  67
  68 /* Porting::
  69
  70    If you add a new system configuration file, include it here: */
  71
  72 #if defined (sun)
  73 # if defined (__svr4__) || defined (__SVR4)
  74 #  include "cf/sunos5-5.h"
  75 # else
  76 #  include "cf/sunos4.h"
  77 # endif
  78 #endif
  79
  80 #ifdef aix
  81 #  include "cf/aix.h"
  82 #endif
  83
  84 #ifdef bsdi
  85 #  include "cf/bsdos.h"
  86 #endif
  87
  88 #ifdef __NetBSD__
  89 #  include "cf/netbsd.h"
  90 #endif
  91
  92 #ifdef __FreeBSD__
  93 #  include "cf/freebsd.h"
  94 #endif
  95
  96 #ifdef OpenBSD
  97 #  include "cf/openbsd.h"
  98 #endif
  99
 100 #if defined (__osf__) && defined (__alpha)
 101 #  include "cf/alphaosf.h"
 102 #endif
 103
 104 #ifdef ultrix
 105 #  include "cf/ultrix.h"
 106 #endif
 107
 108 #ifdef linux
 109 #  include "cf/linux.h"
 110 #endif
 111
 112 #ifdef SCO
 113 #  include "cf/sco.h"
 114 #endif
 115
 116 #if defined (hpux) || defined (__hpux)
 117 #  include "cf/hpux.h"
 118 #endif
 119
 120 #ifdef __QNX__
 121 #  include "cf/qnx.h"
 122 #endif
 123
 124 #ifdef __CYGWIN32__
 125 #  include "cf/cygwin32.h"
 126 #endif
 127
 128 #ifdef __APPLE__
 129 # include "cf/rhapsody.h"
 130 #else
 131 # if defined (NeXT)
 132 #  include "cf/nextstep.h"
 133 # endif
 134 #endif
 135
 136 /* snprintf/vsnprintf hacks.  for systems with no libc versions only. */
 137 #ifdef NO_SNPRINTF
 138   extern int isc_print_snprintf(char *, size_t, const char *, ...);
 139   extern int isc_print_vsnprintf(char *, size_t, const char *, va_list ap);
 140 # define snprintf  isc_print_snprintf
 141 # define vsnprintf isc_print_vsnprintf
 142 #endif
 143
 144 /* Porting::
 145
 146    If you add a new network API, and have it set up so that it can be
 147    used for sending or receiving, but doesn't have to be used for both,
 148    then set up an ifdef like the ones below: */
 149
 150 #ifdef USE_SOCKETS
 151 #  define USE_SOCKET_SEND
 152 #  define USE_SOCKET_RECEIVE
 153 #endif
 154
 155 #ifdef USE_RAW_SOCKETS
 156 #  define USE_RAW_SEND
 157 #  define USE_SOCKET_RECEIVE
 158 #endif
 159
 160 #ifdef USE_BPF
 161 #  define USE_BPF_SEND
 162 #  define USE_BPF_RECEIVE
 163 #endif
 164
 165 #ifdef USE_LPF
 166 #  define USE_LPF_SEND
 167 #  define USE_LPF_RECEIVE
 168 #endif
 169
 170 #ifdef USE_NIT
 171 #  define USE_NIT_SEND
 172 #  define USE_NIT_RECEIVE
 173 #endif
 174
 175 #ifdef USE_DLPI
 176 #  define USE_DLPI_SEND
 177 #  define USE_DLPI_RECEIVE
 178 #endif
 179
 180 #ifdef USE_UPF
 181 #  define USE_UPF_SEND
 182 #  define USE_UPF_RECEIVE
 183 #endif
 184
 185 /* Porting::
 186
 187    If you add support for sending packets directly out an interface,
 188    and your support does not do ARP or routing, you must use a fallback
 189    mechanism to deal with packets that need to be sent to routers.
 190    Currently, all low-level packet interfaces use BSD sockets as a
 191    fallback. */
 192
 193 #if defined (USE_BPF_SEND) || defined (USE_NIT_SEND) || \
 194     defined (USE_DLPI_SEND) || defined (USE_UPF_SEND) || \
 195     defined (USE_LPF_SEND) || \
 196     (defined (USE_SOCKET_SEND) && defined (HAVE_SO_BINDTODEVICE))
 197 #  define USE_SOCKET_FALLBACK
 198 #  define USE_FALLBACK
 199 #endif
 200
 201 /* Porting::
 202
 203    If you add support for sending packets directly out an interface
 204    and need to be able to assemble packets, add the USE_XXX_SEND
 205    definition for your interface to the list tested below. */
 206
 207 #if defined (USE_RAW_SEND) || defined (USE_BPF_SEND) || \
 208                 defined (USE_NIT_SEND) || defined (USE_UPF_SEND) || \
 209                 defined (USE_DLPI_SEND) || defined (USE_LPF_SEND)
 210 #  define PACKET_ASSEMBLY
 211 #endif
 212
 213 /* Porting::
 214
 215    If you add support for receiving packets directly from an interface
 216    and need to be able to decode raw packets, add the USE_XXX_RECEIVE
 217    definition for your interface to the list tested below. */
 218
 219 #if defined (USE_RAW_RECEIVE) || defined (USE_BPF_SEND) || \
 220                 defined (USE_NIT_RECEIVE) || defined (USE_UPF_RECEIVE) || \
 221                 defined (USE_DLPI_RECEIVE) || defined (USE_LPF_RECEIVE)
 222 #  define PACKET_DECODING
 223 #endif
 224
 225 /* If we don't have a DLPI packet filter, we have to filter in userland.
 226    Probably not worth doing, actually. */
 227 #if defined (USE_DLPI_RECEIVE) && !defined (USE_DLPI_PFMOD)
 228 #  define USERLAND_FILTER
 229 #endif
 230
 231 /* jmp_buf is assumed to be a struct unless otherwise defined in the
 232    system header. */
 233 #ifndef jbp_decl
 234 # define jbp_decl(x)    jmp_buf *x
 235 #endif
 236 #ifndef jref
 237 # define jref(x)        (&(x))
 238 #endif
 239 #ifndef jdref
 240 # define jdref(x)       (*(x))
 241 #endif
 242 #ifndef jrefproto
 243 # define jrefproto      jmp_buf *
 244 #endif
 245
 246 #ifndef BPF_FORMAT
 247 # define BPF_FORMAT "/dev/bpf%d"
 248 #endif
 249
 250 #if defined (F_SETFD) && !defined (HAVE_SETFD)
 251 # define HAVE_SETFD
 252 #endif
 253
 254 #if defined (IFF_POINTOPOINT) && !defined (HAVE_IFF_POINTOPOINT)
 255 # define HAVE_IFF_POINTOPOINT
 256 #endif
 257
 258 #if defined (AF_LINK) && !defined (HAVE_AF_LINK)
 259 # define HAVE_AF_LINK
 260 #endif
 261
 262 #if defined (ARPHRD_TUNNEL) && !defined (HAVE_ARPHRD_TUNNEL)
 263 # define HAVE_ARPHRD_TUNNEL
 264 #endif
 265
 266 #if defined (ARPHRD_LOOPBACK) && !defined (HAVE_ARPHRD_LOOPBACK)
 267 # define HAVE_ARPHRD_LOOPBACK
 268 #endif
 269
 270 #if defined (ARPHRD_ROSE) && !defined (HAVE_ARPHRD_ROSE)
 271 # define HAVE_ARPHRD_ROSE
 272 #endif
 273
 274 #if defined (ARPHRD_IEEE802) && !defined (HAVE_ARPHRD_IEEE802)
 275 # define HAVE_ARPHRD_IEEE802
 276 #endif
 277
 278 #if defined (ARPHRD_IEEE802_TR) && !defined (HAVE_ARPHRD_IEEE802_TR)
 279 # define HAVE_ARPHRD_IEEE802_TR
 280 #endif
 281
 282 #if defined (ARPHRD_FDDI) && !defined (HAVE_ARPHRD_FDDI)
 283 # define HAVE_ARPHRD_FDDI
 284 #endif
 285
 286 #if defined (ARPHRD_AX25) && !defined (HAVE_ARPHRD_AX25)
 287 # define HAVE_ARPHRD_AX25
 288 #endif
 289
 290 #if defined (ARPHRD_NETROM) && !defined (HAVE_ARPHRD_NETROM)
 291 # define HAVE_ARPHRD_NETROM
 292 #endif
 293
 294 #if defined (ARPHRD_METRICOM) && !defined (HAVE_ARPHRD_METRICOM)
 295 # define HAVE_ARPHRD_METRICOM
 296 #endif
 297
 298 #if defined (SO_BINDTODEVICE) && !defined (HAVE_SO_BINDTODEVICE)
 299 # define HAVE_SO_BINDTODEVICE
 300 #endif
 301
 302 #if defined (AF_LINK) && !defined (HAVE_AF_LINK)
 303 # define HAVE_AF_LINK
 304 #endif
 305
 306 /* Linux needs to define SHUT_* in /usr/include/sys/socket.h someday... */
 307 #if !defined (SHUT_RD)
 308 # define SHUT_RD 0
 309 #endif
 310
 311 #if !defined (SOCKLEN_T)
 312 # define SOCKLEN_T socklen_t
 313 #endif
 314
 315 #if !defined (STDERR_FILENO)
 316 # define STDERR_FILENO 2
 317 #endif
 318
 319 #endif /* __ISC_DHCP_OSDEP_H__ */