1/*	$NetBSD: linux_msg.h,v 1.12 2008/12/09 11:09:11 njoly 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_MSG_H
33#define _LINUX_MSG_H
34
35#include <sys/msg.h>
36
37/*
38 * msq_id_ds structure. Mostly the same fields, except for some internal
39 * ones.
40 */
41struct linux_msqid_ds {
42	struct linux_ipc_perm	l_msg_perm;
43	void			*l_msg_first;
44	void			*l_msg_last;
45	linux_time_t		l_msg_stime;
46	linux_time_t		l_msg_rtime;
47	linux_time_t		l_msg_ctime;
48	void			*l_wwait;	/* Linux internal */
49	void			*l_rwait;	/* Linux internal */
50	ushort			l_msg_cbytes;
51	ushort			l_msg_qnum;
52	ushort			l_msg_qbytes;
53	ushort			l_msg_lspid;
54	ushort			l_msg_lrpid;
55};
56
57struct linux_msqid64_ds {
58	struct linux_ipc64_perm	l_msg_perm;
59	linux_time_t		l_msg_stime;
60#ifndef _LP64
61	ulong			l___unused1;
62#endif
63	linux_time_t		l_msg_rtime;
64#ifndef _LP64
65	ulong			l___unused2;
66#endif
67	linux_time_t		l_msg_ctime;
68#ifndef _LP64
69	ulong			l___unused3;
70#endif
71	ulong			l_msg_cbytes;
72	ulong			l_msg_qnum;
73	ulong			l_msg_qbytes;
74	int			l_msg_lspid;
75	int			l_msg_lrpid;
76	ulong			l___unused4;
77	ulong			l___unused5;
78
79};
80
81#define LINUX_MSG_NOERROR	0x1000
82#define LINUX_MSG_EXCEPT	0x2000
83
84/*
85 * The notorious anonymous message structure.
86 */
87struct linux_mymsg {
88	long	l_mtype;
89	char	l_mtext[1];
90};
91
92/*
93 * This kludge is used for the 6th argument to the msgrcv system
94 * call, to get around the maximum of 5 arguments to a syscall in Linux.
95 */
96struct linux_msgrcv_msgarg {
97	struct linux_mymsg *msg;
98	long type;
99};
100/*
101 * For msgctl calls.
102 */
103struct linux_msginfo {
104	int	l_msgpool;
105	int	l_msgmap;
106	int	l_msgmax;
107	int	l_msgmnb;
108	int	l_msgmni;
109	int	l_msgssz;
110	int	l_msgtql;
111	ushort	l_msgseg;
112};
113
114#define LINUX_MSG_STAT	11
115#define LINUX_MSG_INFO	12
116
117/* Pretend the sys_msgctl syscall is defined */
118struct linux_sys_msgctl_args {
119	syscallarg(int) msqid;
120	syscallarg(int) cmd;
121	syscallarg(struct linux_msqid_ds *) buf;
122};
123
124
125#ifdef SYSVMSG
126#ifdef _KERNEL
127__BEGIN_DECLS
128int linux_sys_msgctl(struct lwp *, const struct linux_sys_msgctl_args *, register_t *);
129void linux_to_bsd_msqid_ds(struct linux_msqid_ds *, struct msqid_ds *);
130void linux_to_bsd_msqid64_ds(struct linux_msqid64_ds *, struct msqid_ds *);
131void bsd_to_linux_msqid_ds(struct msqid_ds *, struct linux_msqid_ds *);
132void bsd_to_linux_msqid64_ds(struct msqid_ds *, struct linux_msqid64_ds *);
133__END_DECLS
134#endif	/* !_KERNEL */
135#endif	/* !SYSVMSG */
136
137#endif /* !_LINUX_MSG_H */
138