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linux_msg.h revision 1.5 
      1 /*	$NetBSD: linux_msg.h,v 1.5 1998/10/04 00:02:37 fvdl 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_MSG_H
     40 #define _LINUX_MSG_H
     41 
     42 #include <sys/msg.h>
     43 
     44 /*
     45  * msq_id_ds structure. Mostly the same fields, except for some internal
     46  * ones.
     47  */
     48 struct linux_msqid_ds {
     49 	struct linux_ipc_perm	l_msg_perm;
     50 	void			*l_msg_first;
     51 	void			*l_msg_last;
     52 	linux_time_t		l_msg_stime;
     53 	linux_time_t		l_msg_rtime;
     54 	linux_time_t		l_msg_ctime;
     55 	void			*l_wwait;	/* Linux internal */
     56 	void			*l_rwait;	/* Linux internal */
     57 	ushort			l_msg_cbytes;
     58 	ushort			l_msg_qnum;
     59 	ushort			l_msg_qbytes;
     60 	ushort			l_msg_lspid;
     61 	ushort			l_msg_lrpid;
     62 };
     63 
     64 #define LINUX_MSG_NOERROR	0x1000
     65 #define LINUX_MSG_EXCEPT	0x2000
     66 
     67 /*
     68  * The notorious anonymous message structure.
     69  */
     70 struct linux_mymsg {
     71 	long	l_mtype;
     72 	char	l_mtext[1];
     73 };
     74 
     75 /*
     76  * This kludge is used for the 6th argument to the msgrcv system
     77  * call, to get around the maximum of 5 arguments to a syscall in Linux.
     78  */
     79 struct linux_msgrcv_msgarg {
     80 	struct linux_mymsg *msg;
     81 	int type;
     82 };
     83 /*
     84  * For msgctl calls.
     85  */
     86 struct linux_msginfo {
     87 	int	l_msgpool;
     88 	int	l_msgmap;
     89 	int	l_msgmax;
     90 	int	l_msgmnb;
     91 	int	l_msgmni;
     92 	int	l_msgssz;
     93 	int	l_msgtql;
     94 	ushort	l_msgseg;
     95 };
     96 
     97 #define LINUX_MSG_STAT	11
     98 #define LINUX_MSG_INFO	12
     99 
    100 /* Pretend the sys_msgctl syscall is defined */
    101 struct linux_sys_msgctl_args {
    102 	syscallarg(int) msqid;
    103 	syscallarg(int) cmd;
    104 	syscallarg(struct linux_msqid_ds *) buf;
    105 };
    106 
    107 
    108 #ifdef SYSVMSG
    109 #ifdef _KERNEL
    110 __BEGIN_DECLS
    111 int linux_sys_msgctl __P((struct proc *, void *, register_t *));
    112 void linux_to_bsd_msqid_ds __P((struct linux_msqid_ds *,
    113 				       struct msqid_ds *));
    114 void bsd_to_linux_msqid_ds __P((struct msqid_ds *,
    115 				       struct linux_msqid_ds *));
    116 __END_DECLS
    117 #endif	/* !_KERNEL */
    118 #endif	/* !SYSVMSG */
    119 
    120 #endif /* !_LINUX_MSG_H */
    121