/*      $NetBSD: linux_ipc.h,v 1.9 2008/04/28 20:23:43 martin Exp $     */

/*-
* Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Frank van der Linden and Eric Haszlakiewicz.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/

#ifndef _LINUX_IPC_H
#define _LINUX_IPC_H

#if defined(_KERNEL_OPT)
#include "opt_sysv.h"
#endif

#include <sys/ipc.h>

/*
* Structs and values to handle the SYSV ipc/shm/msg calls implemented
* in Linux. Most values match the NetBSD values (as they are both derived
* from SysV values). Values that are the same may not be defined here.
*/

typedef int linux_key_t;

/*
* The only thing different about the Linux ipc_perm structure is the
* order of the fields.
*/
struct linux_ipc_perm {
       linux_key_t     l_key;
       ushort          l_uid;
       ushort          l_gid;
       ushort          l_cuid;
       ushort          l_cgid;
       ushort          l_mode;
       ushort          l_seq;
};

struct linux_ipc64_perm {
       linux_key_t     l_key;
       uint            l_uid;
       uint            l_gid;
       uint            l_cuid;
       uint            l_cgid;
       ushort          l_mode;
       ushort          l___pad1;
       ushort          l_seq;
       ushort          l___pad2;
       ulong           l___unused1;
       ulong           l___unused2;
};

#define LINUX_IPC_RMID  0
#define LINUX_IPC_SET   1
#define LINUX_IPC_STAT  2
#define LINUX_IPC_INFO  3

#define LINUX_IPC_64    0x100

#if defined (SYSVSEM) || defined(SYSVSHM) || defined(SYSVMSG)
#ifdef _KERNEL
__BEGIN_DECLS
void linux_to_bsd_ipc_perm(struct linux_ipc_perm *,
                                      struct ipc_perm *);
void linux_to_bsd_ipc64_perm(struct linux_ipc64_perm *,
                                      struct ipc_perm *);
void bsd_to_linux_ipc_perm(struct ipc_perm *,
                                      struct linux_ipc_perm *);
void bsd_to_linux_ipc64_perm(struct ipc_perm *,
                                      struct linux_ipc64_perm *);
__END_DECLS
#endif  /* !_KERNEL */
#endif  /* !SYSVSEM, !SYSVSHM, !SYSVMSG */

#endif /* !_LINUX_IPC_H */