xref: /netbsd-src/sys/compat/linux/common/linux_ipc.h (revision 8b0f9554ff8762542c4defc4f70e1eb76fb508fa)
1 /*	$NetBSD: linux_ipc.h,v 1.8 2007/12/04 18:40:15 dsl 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  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the NetBSD
21  *	Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #ifndef _LINUX_IPC_H
40 #define _LINUX_IPC_H
41 
42 #if defined(_KERNEL_OPT)
43 #include "opt_sysv.h"
44 #endif
45 
46 #include <sys/ipc.h>
47 
48 /*
49  * Structs and values to handle the SYSV ipc/shm/msg calls implemented
50  * in Linux. Most values match the NetBSD values (as they are both derived
51  * from SysV values). Values that are the same may not be defined here.
52  */
53 
54 typedef int linux_key_t;
55 
56 /*
57  * The only thing different about the Linux ipc_perm structure is the
58  * order of the fields.
59  */
60 struct linux_ipc_perm {
61 	linux_key_t	l_key;
62 	ushort		l_uid;
63 	ushort		l_gid;
64 	ushort		l_cuid;
65 	ushort		l_cgid;
66 	ushort		l_mode;
67 	ushort		l_seq;
68 };
69 
70 struct linux_ipc64_perm {
71 	linux_key_t	l_key;
72 	uint		l_uid;
73 	uint		l_gid;
74 	uint		l_cuid;
75 	uint		l_cgid;
76 	ushort		l_mode;
77 	ushort		l___pad1;
78 	ushort		l_seq;
79 	ushort		l___pad2;
80 	ulong		l___unused1;
81 	ulong		l___unused2;
82 };
83 
84 #define LINUX_IPC_RMID	0
85 #define LINUX_IPC_SET	1
86 #define LINUX_IPC_STAT	2
87 #define LINUX_IPC_INFO	3
88 
89 #define LINUX_IPC_64	0x100
90 
91 #if defined (SYSVSEM) || defined(SYSVSHM) || defined(SYSVMSG)
92 #ifdef _KERNEL
93 __BEGIN_DECLS
94 void linux_to_bsd_ipc_perm(struct linux_ipc_perm *,
95 				       struct ipc_perm *);
96 void linux_to_bsd_ipc64_perm(struct linux_ipc64_perm *,
97 				       struct ipc_perm *);
98 void bsd_to_linux_ipc_perm(struct ipc_perm *,
99 				       struct linux_ipc_perm *);
100 void bsd_to_linux_ipc64_perm(struct ipc_perm *,
101 				       struct linux_ipc64_perm *);
102 __END_DECLS
103 #endif	/* !_KERNEL */
104 #endif	/* !SYSVSEM, !SYSVSHM, !SYSVMSG */
105 
106 #endif /* !_LINUX_IPC_H */
107