1 /*	$NetBSD: linux_ipc.h,v 1.9 2008/04/28 20:23:43 martin Exp $	*/
2 
3 /*-
4  * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Frank van der Linden and Eric Haszlakiewicz.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _LINUX_IPC_H
33 #define _LINUX_IPC_H
34 
35 #if defined(_KERNEL_OPT)
36 #include "opt_sysv.h"
37 #endif
38 
39 #include <sys/ipc.h>
40 
41 /*
42  * Structs and values to handle the SYSV ipc/shm/msg calls implemented
43  * in Linux. Most values match the NetBSD values (as they are both derived
44  * from SysV values). Values that are the same may not be defined here.
45  */
46 
47 typedef int linux_key_t;
48 
49 /*
50  * The only thing different about the Linux ipc_perm structure is the
51  * order of the fields.
52  */
53 struct linux_ipc_perm {
54 	linux_key_t	l_key;
55 	ushort		l_uid;
56 	ushort		l_gid;
57 	ushort		l_cuid;
58 	ushort		l_cgid;
59 	ushort		l_mode;
60 	ushort		l_seq;
61 };
62 
63 struct linux_ipc64_perm {
64 	linux_key_t	l_key;
65 	uint		l_uid;
66 	uint		l_gid;
67 	uint		l_cuid;
68 	uint		l_cgid;
69 	ushort		l_mode;
70 	ushort		l___pad1;
71 	ushort		l_seq;
72 	ushort		l___pad2;
73 	ulong		l___unused1;
74 	ulong		l___unused2;
75 };
76 
77 #define LINUX_IPC_RMID	0
78 #define LINUX_IPC_SET	1
79 #define LINUX_IPC_STAT	2
80 #define LINUX_IPC_INFO	3
81 
82 #define LINUX_IPC_64	0x100
83 
84 #if defined (SYSVSEM) || defined(SYSVSHM) || defined(SYSVMSG)
85 #ifdef _KERNEL
86 __BEGIN_DECLS
87 void linux_to_bsd_ipc_perm(struct linux_ipc_perm *,
88 				       struct ipc_perm *);
89 void linux_to_bsd_ipc64_perm(struct linux_ipc64_perm *,
90 				       struct ipc_perm *);
91 void bsd_to_linux_ipc_perm(struct ipc_perm *,
92 				       struct linux_ipc_perm *);
93 void bsd_to_linux_ipc64_perm(struct ipc_perm *,
94 				       struct linux_ipc64_perm *);
95 __END_DECLS
96 #endif	/* !_KERNEL */
97 #endif	/* !SYSVSEM, !SYSVSHM, !SYSVMSG */
98 
99 #endif /* !_LINUX_IPC_H */
100