1 /* $NetBSD: ipc.h,v 1.7 2019/02/21 08:25:00 mrg Exp $ */
2
3 /*
4 * Copyright (c) 1990, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * This code is derived from software contributed to Berkeley by
13 * the Systems Programming Group of the University of Utah Computer
14 * Science Department.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution.
24 * 3. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 * @(#)ipc.h 8.4 (Berkeley) 2/19/95
41 */
42
43 /*
44 * SVID compatible ipc.h file
45 */
46
47 #ifndef _COMPAT_SYS_IPC_H_
48 #define _COMPAT_SYS_IPC_H_
49
50 #ifdef _KERNEL
51 #include <lib/libkern/libkern.h>
52 #else
53 #include <string.h>
54 #endif
55
56 __BEGIN_DECLS
57 /*
58 * Old IPC permission structure used before NetBSD 1.5.
59 */
60 struct ipc_perm14 {
61 unsigned short cuid; /* creator user id */
62 unsigned short cgid; /* creator group id */
63 unsigned short uid; /* user id */
64 unsigned short gid; /* group id */
65 unsigned short mode; /* r/w permission */
66 unsigned short seq; /* sequence # (to generate unique
67 msg/sem/shm id) */
68 key_t key; /* user specified msg/sem/shm key */
69 };
70
71 static __inline void __ipc_perm14_to_native(const struct ipc_perm14 *, struct ipc_perm *);
72 static __inline void __native_to_ipc_perm14(const struct ipc_perm *, struct ipc_perm14 *);
73 static __inline void
__ipc_perm14_to_native(const struct ipc_perm14 * operm,struct ipc_perm * perm)74 __ipc_perm14_to_native(const struct ipc_perm14 *operm, struct ipc_perm *perm)
75 {
76
77 memset(perm, 0, sizeof *perm);
78 #define CVT(x) perm->x = operm->x
79 CVT(uid);
80 CVT(gid);
81 CVT(cuid);
82 CVT(cgid);
83 CVT(mode);
84 #undef CVT
85 }
86
87 static __inline void
__native_to_ipc_perm14(const struct ipc_perm * perm,struct ipc_perm14 * operm)88 __native_to_ipc_perm14(const struct ipc_perm *perm, struct ipc_perm14 *operm)
89 {
90
91 memset(operm, 0, sizeof *operm);
92 #define CVT(x) operm->x = perm->x
93 CVT(uid);
94 CVT(gid);
95 CVT(cuid);
96 CVT(cgid);
97 CVT(mode);
98 #undef CVT
99
100 /*
101 * Not part of the API, but some programs might look at it.
102 */
103 operm->seq = perm->_seq;
104 operm->key = perm->_key;
105 }
106
107 #if defined(_KERNEL) && defined(SYSCTLFN_ARGS)
108 int sysctl_kern_sysvipc50(SYSCTLFN_ARGS);
109 #define KERN_SYSVIPC_OMSG_INFO 1 /* msginfo and msqid_ds50 */
110 #define KERN_SYSVIPC_OSEM_INFO 2 /* seminfo and semid_ds50 */
111 #define KERN_SYSVIPC_OSHM_INFO 3 /* shminfo and shmid_ds50 */
112 #endif
113
114 __END_DECLS
115
116 #endif /* !_COMPAT_SYS_IPC_H_ */
117