bsd/net/net_osdep.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  24  * All rights reserved.
  25  *
  26  * Redistribution and use in source and binary forms, with or without
  27  * modification, are permitted provided that the following conditions
  28  * are met:
  29  * 1. Redistributions of source code must retain the above copyright
  30  *    notice, this list of conditions and the following disclaimer.
  31  * 2. Redistributions in binary form must reproduce the above copyright
  32  *    notice, this list of conditions and the following disclaimer in the
  33  *    documentation and/or other materials provided with the distribution.
  34  * 3. Neither the name of the project nor the names of its contributors
  35  *    may be used to endorse or promote products derived from this software
  36  *    without specific prior written permission.
  37  *
  38  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  39  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  40  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  41  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  42  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  43  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  44  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  45  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  46  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  47  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  48  * SUCH DAMAGE.
  49  */
  50 /*
  51  * glue for kernel code programming differences.
  52  */
  53
  54 /*
  55  * OS dependencies:
  56  *
  57  * - privileged process
  58  *      NetBSD, FreeBSD 3
  59  *              struct proc *p;
  60  *              if (p && !suser(p->p_ucred, &p->p_acflag))
  61  *                      privileged;
  62  *      OpenBSD, BSDI [34], FreeBSD 2
  63  *              struct socket *so;
  64  *              if (so->so_state & SS_PRIV)
  65  *                      privileged;
  66  * - foo_control
  67  *      NetBSD, FreeBSD 3
  68  *              needs to give struct proc * as argument
  69  *      OpenBSD, BSDI [34], FreeBSD 2
  70  *              do not need struct proc *
  71  * - bpf:
  72  *      OpenBSD, NetBSD, BSDI [34]
  73  *              need caddr_t * (= if_bpf **) and struct ifnet *
  74  *      FreeBSD 2, FreeBSD 3
  75  *              need only struct ifnet * as argument
  76  * - struct ifnet
  77  *                      use queue.h?    member names    if name
  78  *                      ---             ---             ---
  79  *      FreeBSD 2       no              old standard    if_name+unit
  80  *      FreeBSD 3       yes             strange         if_name+unit
  81  *      OpenBSD         yes             standard        if_xname
  82  *      NetBSD          yes             standard        if_xname
  83  *      BSDI [34]       no              old standard    if_name+unit
  84  * - usrreq
  85  *      NetBSD, OpenBSD, BSDI [34], FreeBSD 2
  86  *              single function with PRU_xx, arguments are mbuf
  87  *      FreeBSD 3
  88  *              separates functions, non-mbuf arguments
  89  * - {set,get}sockopt
  90  *      NetBSD, OpenBSD, BSDI [34], FreeBSD 2
  91  *              manipulation based on mbuf
  92  *      FreeBSD 3
  93  *              non-mbuf manipulation using sooptcopy{in,out}()
  94  * - timeout() and untimeout()
  95  *      NetBSD, OpenBSD, BSDI [34], FreeBSD 2
  96  *              timeout() is a void function
  97  *      FreeBSD 3
  98  *              timeout() is non-void, must keep returned value for untimeuot()
  99  * - sysctl
 100  *      NetBSD, OpenBSD
 101  *              foo_sysctl()
 102  *      BSDI [34]
 103  *              foo_sysctl() but with different style
 104  *      FreeBSD 2, FreeBSD 3
 105  *              linker hack
 106  *
 107  * - if_ioctl
 108  *      NetBSD, FreeBSD 3, BSDI [34]
 109  *              2nd argument is u_long cmd
 110  *      FreeBSD 2
 111  *              2nd argument is int cmd
 112  * - if attach routines
 113  *      NetBSD
 114  *              void xxattach(int);
 115  *      FreeBSD 2, FreeBSD 3
 116  *              void xxattach(void *);
 117  *              PSEUDO_SET(xxattach, if_xx);
 118  *
 119  * - ovbcopy()
 120  *      in NetBSD 1.4 or later, ovbcopy() is not supplied in the kernel.
 121  *      bcopy() is safe against overwrites.
 122  * - splnet()
 123  *      NetBSD 1.4 or later requires splsoftnet().
 124  *      other operating systems use splnet().
 125  *
 126  * - dtom()
 127  *      NEVER USE IT!
 128  *
 129  * - struct ifnet for loopback interface
 130  *      BSDI3: struct ifnet loif;
 131  *      BSDI4: struct ifnet *loifp;
 132  *      NetBSD, OpenBSD, FreeBSD2: struct ifnet loif[NLOOP];
 133  *
 134  *      odd thing is that many of them refers loif as ifnet *loif,
 135  *      not loif[NLOOP], from outside of if_loop.c.
 136  */
 137
 138 #ifndef __NET_NET_OSDEP_H_DEFINED_
 139 #define __NET_NET_OSDEP_H_DEFINED_
 140 #ifdef KERNEL
 141
 142 #if defined(__NetBSD__) || defined(__OpenBSD__)
 143 #define if_name(ifp)    ((ifp)->if_xname)
 144 #else
 145 struct ifnet;
 146 extern char *if_name __P((struct ifnet *));
 147 #endif
 148
 149 #if defined (__APPLE__)
 150 #define HAVE_OLD_BPF
 151 #endif
 152
 153 //#if defined(__FreeBSD__) && __FreeBSD__ >= 3
 154 #if defined (__APPLE__)
 155 #define ifa_list        ifa_link
 156 #define if_addrlist     if_addrhead
 157 #define if_list         if_link
 158 #endif
 159
 160 #if defined(__NetBSD__) && __NetBSD_Version__ >= 104000000
 161 #define ovbcopy         bcopy
 162 #endif
 163
 164 #if defined(__OpenBSD__) || (defined(__bsdi__) && _BSDI_VERSION >= 199802)
 165 #define HAVE_NRL_INPCB
 166 #endif
 167
 168 #endif /*_KERNEL*/
 169 #endif /*__NET_NET_OSDEP_H_DEFINED_ */