osdep.h revision 1.3 
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__ */
320