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linux_msg.h revision 1.4
      1 /*	$NetBSD: linux_msg.h,v 1.4 1998/10/03 20:17:42 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by 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 /*
     40  * Copyright (c) 1995 Frank van der Linden
     41  * All rights reserved.
     42  *
     43  * Redistribution and use in source and binary forms, with or without
     44  * modification, are permitted provided that the following conditions
     45  * are met:
     46  * 1. Redistributions of source code must retain the above copyright
     47  *    notice, this list of conditions and the following disclaimer.
     48  * 2. Redistributions in binary form must reproduce the above copyright
     49  *    notice, this list of conditions and the following disclaimer in the
     50  *    documentation and/or other materials provided with the distribution.
     51  * 3. All advertising materials mentioning features or use of this software
     52  *    must display the following acknowledgement:
     53  *      This product includes software developed for the NetBSD Project
     54  *      by Frank van der Linden
     55  * 4. The name of the author may not be used to endorse or promote products
     56  *    derived from this software without specific prior written permission
     57  *
     58  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     59  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     60  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     61  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     62  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     63  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     64  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     65  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     66  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     67  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     68  */
     69 
     70 #ifndef _LINUX_MSG_H
     71 #define _LINUX_MSG_H
     72 
     73 #include <sys/msg.h>
     74 
     75 /*
     76  * msq_id_ds structure. Mostly the same fields, except for some internal
     77  * ones.
     78  */
     79 struct linux_msqid_ds {
     80 	struct linux_ipc_perm	l_msg_perm;
     81 	void			*l_msg_first;
     82 	void			*l_msg_last;
     83 	linux_time_t		l_msg_stime;
     84 	linux_time_t		l_msg_rtime;
     85 	linux_time_t		l_msg_ctime;
     86 	void			*l_wwait;	/* Linux internal */
     87 	void			*l_rwait;	/* Linux internal */
     88 	ushort			l_msg_cbytes;
     89 	ushort			l_msg_qnum;
     90 	ushort			l_msg_qbytes;
     91 	ushort			l_msg_lspid;
     92 	ushort			l_msg_lrpid;
     93 };
     94 
     95 #define LINUX_MSG_NOERROR	0x1000
     96 #define LINUX_MSG_EXCEPT	0x2000
     97 
     98 /*
     99  * The notorious anonymous message structure.
    100  */
    101 struct linux_mymsg {
    102 	long	l_mtype;
    103 	char	l_mtext[1];
    104 };
    105 
    106 /*
    107  * This kludge is used for the 6th argument to the msgrcv system
    108  * call, to get around the maximum of 5 arguments to a syscall in Linux.
    109  */
    110 struct linux_msgrcv_msgarg {
    111 	struct linux_mymsg *msg;
    112 	int type;
    113 };
    114 /*
    115  * For msgctl calls.
    116  */
    117 struct linux_msginfo {
    118 	int	l_msgpool;
    119 	int	l_msgmap;
    120 	int	l_msgmax;
    121 	int	l_msgmnb;
    122 	int	l_msgmni;
    123 	int	l_msgssz;
    124 	int	l_msgtql;
    125 	ushort	l_msgseg;
    126 };
    127 
    128 #define LINUX_MSG_STAT	11
    129 #define LINUX_MSG_INFO	12
    130 
    131 /* Pretend the sys_msgctl syscall is defined */
    132 struct linux_sys_msgctl_args {
    133 	syscallarg(int) msqid;
    134 	syscallarg(int) cmd;
    135 	syscallarg(struct linux_msqid_ds *) buf;
    136 };
    137 
    138 
    139 #ifdef SYSVMSG
    140 #ifdef _KERNEL
    141 __BEGIN_DECLS
    142 int linux_sys_msgctl __P((struct proc *, void *, register_t *));
    143 void linux_to_bsd_msqid_ds __P((struct linux_msqid_ds *,
    144 				       struct msqid_ds *));
    145 void bsd_to_linux_msqid_ds __P((struct msqid_ds *,
    146 				       struct linux_msqid_ds *));
    147 __END_DECLS
    148 #endif	/* !_KERNEL */
    149 #endif	/* !SYSVMSG */
    150 
    151 #endif /* !_LINUX_MSG_H */
    152