Annotation of embedaddon/dhcp/includes/osdep.h, revision 1.1
1.1 ! misho 1: /* osdep.h
! 2:
! 3: Operating system dependencies... */
! 4:
! 5: /*
! 6: * Copyright (c) 2004-2005,2007-2010 by Internet Systems Consortium,
! 7: * Inc. ("ISC")
! 8: * Copyright (c) 1996-2003 by Internet Software Consortium
! 9: *
! 10: * Permission to use, copy, modify, and distribute this software for any
! 11: * purpose with or without fee is hereby granted, provided that the above
! 12: * copyright notice and this permission notice appear in all copies.
! 13: *
! 14: * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
! 15: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 16: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
! 17: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 18: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 19: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
! 20: * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 21: *
! 22: * Internet Systems Consortium, Inc.
! 23: * 950 Charter Street
! 24: * Redwood City, CA 94063
! 25: * <info@isc.org>
! 26: * https://www.isc.org/
! 27: *
! 28: * This software has been written for Internet Systems Consortium
! 29: * by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
! 30: * To learn more about Internet Systems Consortium, see
! 31: * ``https://www.isc.org/''. To learn more about Vixie Enterprises,
! 32: * see ``http://www.vix.com''. To learn more about Nominum, Inc., see
! 33: * ``http://www.nominum.com''.
! 34: */
! 35:
! 36: #if !defined (__ISC_DHCP_OSDEP_H__)
! 37: #define __ISC_DHCP_OSDEP_H__
! 38:
! 39: #include "site.h"
! 40:
! 41: #include "config.h"
! 42:
! 43: #include <inttypes.h>
! 44:
! 45: #ifndef LITTLE_ENDIAN
! 46: #define LITTLE_ENDIAN 1234
! 47: #endif /* LITTLE_ENDIAN */
! 48:
! 49: #ifndef BIG_ENDIAN
! 50: #define BIG_ENDIAN 4321
! 51: #endif /* BIG_ENDIAN */
! 52:
! 53: #ifndef BYTE_ORDER
! 54: #define BYTE_ORDER DHCP_BYTE_ORDER
! 55: #endif /* BYTE_ORDER */
! 56:
! 57: /* Porting::
! 58:
! 59: If you add a new network API, you must add a check for it below: */
! 60:
! 61: #if !defined (USE_SOCKETS) && \
! 62: !defined (USE_SOCKET_SEND) && \
! 63: !defined (USE_SOCKET_RECEIVE) && \
! 64: !defined (USE_RAW_SOCKETS) && \
! 65: !defined (USE_RAW_SEND) && \
! 66: !defined (USE_SOCKET_RECEIVE) && \
! 67: !defined (USE_BPF) && \
! 68: !defined (USE_BPF_SEND) && \
! 69: !defined (USE_BPF_RECEIVE) && \
! 70: !defined (USE_LPF) && \
! 71: !defined (USE_LPF_SEND) && \
! 72: !defined (USE_LPF_RECEIVE) && \
! 73: !defined (USE_NIT) && \
! 74: !defined (USE_NIT_SEND) && \
! 75: !defined (USE_NIT_RECEIVE) && \
! 76: !defined (USE_DLPI_SEND) && \
! 77: !defined (USE_DLPI_RECEIVE)
! 78: /* Determine default socket API to USE. */
! 79: # if defined(HAVE_BPF)
! 80: # define USE_BPF 1
! 81: # elif defined(HAVE_LPF)
! 82: # define USE_LPF 1
! 83: # elif defined(HAVE_DLPI)
! 84: # define USE_DLPI 1
! 85: # endif
! 86: #endif
! 87:
! 88: #if !defined (TIME_MAX)
! 89: # define TIME_MAX 2147483647
! 90: #endif
! 91:
! 92: /* snprintf/vsnprintf hacks. for systems with no libc versions only. */
! 93: #ifdef NO_SNPRINTF
! 94: extern int isc_print_snprintf(char *, size_t, const char *, ...);
! 95: extern int isc_print_vsnprintf(char *, size_t, const char *, va_list ap);
! 96: # define snprintf isc_print_snprintf
! 97: # define vsnprintf isc_print_vsnprintf
! 98: #endif
! 99:
! 100: /* Porting::
! 101:
! 102: If you add a new network API, and have it set up so that it can be
! 103: used for sending or receiving, but doesn't have to be used for both,
! 104: then set up an ifdef like the ones below: */
! 105:
! 106: #ifdef USE_SOCKETS
! 107: # define USE_SOCKET_SEND
! 108: # define USE_SOCKET_RECEIVE
! 109: # if defined(HAVE_DLPI)
! 110: # define USE_DLPI_HWADDR
! 111: # endif
! 112: #endif
! 113:
! 114: #ifdef USE_RAW_SOCKETS
! 115: # define USE_RAW_SEND
! 116: # define USE_SOCKET_RECEIVE
! 117: #endif
! 118:
! 119: #ifdef USE_BPF
! 120: # define USE_BPF_SEND
! 121: # define USE_BPF_RECEIVE
! 122: #endif
! 123:
! 124: #ifdef USE_LPF
! 125: # define USE_LPF_SEND
! 126: # define USE_LPF_RECEIVE
! 127: #endif
! 128:
! 129: #ifdef USE_NIT
! 130: # define USE_NIT_SEND
! 131: # define USE_NIT_RECEIVE
! 132: #endif
! 133:
! 134: #ifdef USE_DLPI
! 135: # define USE_DLPI_SEND
! 136: # define USE_DLPI_RECEIVE
! 137: #endif
! 138:
! 139: #ifdef USE_UPF
! 140: # define USE_UPF_SEND
! 141: # define USE_UPF_RECEIVE
! 142: #endif
! 143:
! 144: /* Porting::
! 145:
! 146: If you add support for sending packets directly out an interface,
! 147: and your support does not do ARP or routing, you must use a fallback
! 148: mechanism to deal with packets that need to be sent to routers.
! 149: Currently, all low-level packet interfaces use BSD sockets as a
! 150: fallback. */
! 151:
! 152: #if defined (USE_BPF_SEND) || defined (USE_NIT_SEND) || \
! 153: defined (USE_DLPI_SEND) || defined (USE_UPF_SEND) || \
! 154: defined (USE_LPF_SEND) || \
! 155: (defined (USE_SOCKET_SEND) && defined (HAVE_SO_BINDTODEVICE))
! 156: # define USE_SOCKET_FALLBACK
! 157: # define USE_FALLBACK
! 158: #endif
! 159:
! 160: /* Porting::
! 161:
! 162: If you add support for sending packets directly out an interface
! 163: and need to be able to assemble packets, add the USE_XXX_SEND
! 164: definition for your interface to the list tested below. */
! 165:
! 166: #if defined (USE_RAW_SEND) || defined (USE_BPF_SEND) || \
! 167: defined (USE_NIT_SEND) || defined (USE_UPF_SEND) || \
! 168: defined (USE_DLPI_SEND) || defined (USE_LPF_SEND)
! 169: # define PACKET_ASSEMBLY
! 170: #endif
! 171:
! 172: /* Porting::
! 173:
! 174: If you add support for receiving packets directly from an interface
! 175: and need to be able to decode raw packets, add the USE_XXX_RECEIVE
! 176: definition for your interface to the list tested below. */
! 177:
! 178: #if defined (USE_RAW_RECEIVE) || defined (USE_BPF_SEND) || \
! 179: defined (USE_NIT_RECEIVE) || defined (USE_UPF_RECEIVE) || \
! 180: defined (USE_DLPI_RECEIVE) || defined (USE_LPF_RECEIVE)
! 181: # define PACKET_DECODING
! 182: #endif
! 183:
! 184: /* If we don't have a DLPI packet filter, we have to filter in userland.
! 185: Probably not worth doing, actually. */
! 186: #if defined (USE_DLPI_RECEIVE) && !defined (USE_DLPI_PFMOD)
! 187: # define USERLAND_FILTER
! 188: #endif
! 189:
! 190: /* jmp_buf is assumed to be a struct unless otherwise defined in the
! 191: system header. */
! 192: #ifndef jbp_decl
! 193: # define jbp_decl(x) jmp_buf *x
! 194: #endif
! 195: #ifndef jref
! 196: # define jref(x) (&(x))
! 197: #endif
! 198: #ifndef jdref
! 199: # define jdref(x) (*(x))
! 200: #endif
! 201: #ifndef jrefproto
! 202: # define jrefproto jmp_buf *
! 203: #endif
! 204:
! 205: #ifndef BPF_FORMAT
! 206: # define BPF_FORMAT "/dev/bpf%d"
! 207: #endif
! 208:
! 209: #if defined (F_SETFD) && !defined (HAVE_SETFD)
! 210: # define HAVE_SETFD
! 211: #endif
! 212:
! 213: #if defined (IFF_POINTOPOINT) && !defined (HAVE_IFF_POINTOPOINT)
! 214: # define HAVE_IFF_POINTOPOINT
! 215: #endif
! 216:
! 217: #if defined (AF_LINK) && !defined (HAVE_AF_LINK)
! 218: # define HAVE_AF_LINK
! 219: #endif
! 220:
! 221: #if defined (ARPHRD_TUNNEL) && !defined (HAVE_ARPHRD_TUNNEL)
! 222: # define HAVE_ARPHRD_TUNNEL
! 223: #endif
! 224:
! 225: #if defined (ARPHRD_LOOPBACK) && !defined (HAVE_ARPHRD_LOOPBACK)
! 226: # define HAVE_ARPHRD_LOOPBACK
! 227: #endif
! 228:
! 229: #if defined (ARPHRD_ROSE) && !defined (HAVE_ARPHRD_ROSE)
! 230: # define HAVE_ARPHRD_ROSE
! 231: #endif
! 232:
! 233: #if defined (ARPHRD_IRDA) && !defined (HAVE_ARPHRD_IRDA)
! 234: # define HAVE_ARPHRD_IRDA
! 235: #endif
! 236:
! 237: #if defined (ARPHRD_SIT) && !defined (HAVE_ARPHRD_SIT)
! 238: # define HAVE_ARPHRD_SIT
! 239: #endif
! 240:
! 241: #if defined (ARPHRD_IEEE1394) & !defined (HAVE_ARPHRD_IEEE1394)
! 242: # define HAVE_ARPHRD_IEEE1394
! 243: #endif
! 244:
! 245: #if defined (ARPHRD_IEEE802) && !defined (HAVE_ARPHRD_IEEE802)
! 246: # define HAVE_ARPHRD_IEEE802
! 247: #endif
! 248:
! 249: #if defined (ARPHRD_IEEE802_TR) && !defined (HAVE_ARPHRD_IEEE802_TR)
! 250: # define HAVE_ARPHRD_IEEE802_TR
! 251: #endif
! 252:
! 253: #if defined (ARPHRD_FDDI) && !defined (HAVE_ARPHRD_FDDI)
! 254: # define HAVE_ARPHRD_FDDI
! 255: #endif
! 256:
! 257: #if defined (ARPHRD_AX25) && !defined (HAVE_ARPHRD_AX25)
! 258: # define HAVE_ARPHRD_AX25
! 259: #endif
! 260:
! 261: #if defined (ARPHRD_NETROM) && !defined (HAVE_ARPHRD_NETROM)
! 262: # define HAVE_ARPHRD_NETROM
! 263: #endif
! 264:
! 265: #if defined (ARPHRD_METRICOM) && !defined (HAVE_ARPHRD_METRICOM)
! 266: # define HAVE_ARPHRD_METRICOM
! 267: #endif
! 268:
! 269: #if defined (SO_BINDTODEVICE) && !defined (HAVE_SO_BINDTODEVICE)
! 270: # define HAVE_SO_BINDTODEVICE
! 271: #endif
! 272:
! 273: #if defined (AF_LINK) && !defined (HAVE_AF_LINK)
! 274: # define HAVE_AF_LINK
! 275: #endif
! 276:
! 277: /* Linux needs to define SHUT_* in /usr/include/sys/socket.h someday... */
! 278: #if !defined (SHUT_RD)
! 279: # define SHUT_RD 0
! 280: #endif
! 281:
! 282: #if !defined (SOCKLEN_T)
! 283: # define SOCKLEN_T socklen_t
! 284: #elif defined(_AIX)
! 285: #undef SOCKLEN_T
! 286: #define SOCKLEN_T socklen_t
! 287: #endif
! 288:
! 289: #if !defined (STDERR_FILENO)
! 290: # define STDERR_FILENO 2
! 291: #endif
! 292:
! 293: #endif /* __ISC_DHCP_OSDEP_H__ */
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