sys/compat/linux/common/linux_msg.h

   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  */
  41 struct 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
  57 struct 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  */
  87 struct 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  */
  96 struct linux_msgrcv_msgarg {
  97         struct linux_mymsg *msg;
  98         long type;
  99 };
 100 /*
 101  * For msgctl calls.
 102  */
 103 struct 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 */
 118 struct 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
 128 int linux_sys_msgctl(struct lwp *, const struct linux_sys_msgctl_args *, register_t *);
 129 void linux_to_bsd_msqid_ds(struct linux_msqid_ds *, struct msqid_ds *);
 130 void linux_to_bsd_msqid64_ds(struct linux_msqid64_ds *, struct msqid_ds *);
 131 void bsd_to_linux_msqid_ds(struct msqid_ds *, struct linux_msqid_ds *);
 132 void 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 */