NetBSD/sys/net/net_osdep.h

148 lines
4.5 KiB
C

/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* glue for kernel code programming differences.
*/
/*
* OS dependencies:
*
* - privileged process
* NetBSD, FreeBSD 3
* struct proc *p;
* if (p && !suser(p->p_ucred, &p->p_acflag))
* privileged;
* OpenBSD, BSDI [34], FreeBSD 2
* struct socket *so;
* if (so->so_state & SS_PRIV)
* privileged;
* - foo_control
* NetBSD, FreeBSD 3
* needs to give struct proc * as argument
* OpenBSD, BSDI [34], FreeBSD 2
* do not need struct proc *
* - bpf:
* OpenBSD, NetBSD, BSDI [34]
* need caddr_t * (= if_bpf **) and struct ifnet *
* FreeBSD 2, FreeBSD 3
* need only struct ifnet * as argument
* - struct ifnet
* use queue.h? member names if name
* --- --- ---
* FreeBSD 2 no old standard if_name+unit
* FreeBSD 3 yes strange if_name+unit
* OpenBSD yes standard if_xname
* NetBSD yes standard if_xname
* BSDI [34] no old standard if_name+unit
* - usrreq
* NetBSD, OpenBSD, BSDI [34], FreeBSD 2
* single function with PRU_xx, arguments are mbuf
* FreeBSD 3
* separates functions, non-mbuf arguments
* - {set,get}sockopt
* NetBSD, OpenBSD, BSDI [34], FreeBSD 2
* manipulation based on mbuf
* FreeBSD 3
* non-mbuf manipulation using sooptcopy{in,out}()
* - timeout() and untimeout()
* NetBSD, OpenBSD, BSDI [34], FreeBSD 2
* timeout() is a void function
* FreeBSD 3
* timeout() is non-void, must keep returned value for untimeuot()
* - sysctl
* NetBSD, OpenBSD
* foo_sysctl()
* BSDI [34]
* foo_sysctl() but with different style
* FreeBSD 2, FreeBSD 3
* linker hack
*
* - if_ioctl
* NetBSD, FreeBSD 3, BSDI [34]
* 2nd argument is u_long cmd
* FreeBSD 2
* 2nd argument is int cmd
* - if attach routines
* NetBSD
* void xxattach(int);
* FreeBSD 2, FreeBSD 3
* void xxattach(void *);
* PSEUDO_SET(xxattach, if_xx);
*
* - ovbcopy()
* in NetBSD 1.4 or later, ovbcopy() is not supplied in the kernel.
* bcopy() is safe against overwrites.
* - splnet()
* NetBSD 1.4 or later requires splsoftnet().
* other operating systems use splnet().
*
* - dtom()
* NEVER USE IT!
*
* - struct ifnet for loopback interface
* BSDI3: struct ifnet loif;
* BSDI4: struct ifnet *loifp;
* NetBSD, OpenBSD, FreeBSD2: struct ifnet loif[NLOOP];
*
* odd thing is that many of them refers loif as ifnet *loif,
* not loif[NLOOP], from outside of if_loop.c.
*/
#ifndef __NET_NET_OSDEP_H_DEFINED_
#define __NET_NET_OSDEP_H_DEFINED_
#ifdef _KERNEL
#if defined(__NetBSD__) || defined(__OpenBSD__)
#define if_name(ifp) ((ifp)->if_xname)
#else
struct ifnet;
extern char *if_name __P((struct ifnet *));
#endif
#ifdef __FreeBSD__
#define HAVE_OLD_BPF
#endif
#if defined(__FreeBSD__) && __FreeBSD__ >= 3
#define ifa_list ifa_link
#define if_addrlist if_addrhead
#define if_list if_link
#endif
#if defined(__NetBSD__) && __NetBSD_Version__ >= 104000000
#define ovbcopy bcopy
#endif
#if defined(__OpenBSD__) || (defined(__bsdi__) && _BSDI_VERSION >= 199802)
#define HAVE_NRL_INPCB
#endif
#endif /*_KERNEL*/
#endif /*__NET_NET_OSDEP_H_DEFINED_ */