1/* $NetBSD: linux_shm.h,v 1.12 2008/04/28 20:23:44 martin 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_SHM_H
33#define _LINUX_SHM_H
34
35#include <sys/shm.h>
36
37/*
38 * shm segment control structure
39 */
40struct linux_shmid_ds {
41 struct linux_ipc_perm l_shm_perm;
42 int l_shm_segsz;
43 linux_time_t l_shm_atime;
44 linux_time_t l_shm_dtime;
45 linux_time_t l_shm_ctime;
46 ushort l_shm_cpid;
47 ushort l_shm_lpid;
48 short l_shm_nattch;
49 ushort l_private1;
50 void *l_private2;
51 void *l_private3;
52};
53
54struct linux_shmid64_ds {
55 struct linux_ipc64_perm l_shm_perm;
56 size_t l_shm_segsz;
57 linux_time_t l_shm_atime;
58#ifndef _LP64
59 u_long l____unused1;
60#endif
61 linux_time_t l_shm_dtime;
62#ifndef _LP64
63 u_long l____unused2;
64#endif
65 linux_time_t l_shm_ctime;
66#ifndef _LP64
67 u_long l____unused3;
68#endif
69 int l_shm_cpid;
70 int l_shm_lpid;
71 u_long l_shm_nattch;
72 u_long l___unused4;
73 u_long l___unused5;
74};
75
76struct linux_shminfo64 {
77 u_long l_shmmax;
78 u_long l_shmmin;
79 u_long l_shmmni;
80 u_long l_shmseg;
81 u_long l_shmall;
82 u_long l___unused1;
83 u_long l___unused2;
84 u_long l___unused3;
85 u_long l___unused4;
86};
87
88struct linux_shm_info {
89 int l_used_ids;
90 u_long l_shm_tot;
91 u_long l_shm_rss;
92 u_long l_shm_swp;
93 u_long l_swap_attempts;
94 u_long l_swap_successes;
95};
96
97#define LINUX_SHM_RDONLY 0x1000
98#define LINUX_SHM_RND 0x2000
99#define LINUX_SHM_REMAP 0x4000
100
101#define LINUX_SHM_LOCK 11
102#define LINUX_SHM_UNLOCK 12
103#define LINUX_SHM_STAT 13
104#define LINUX_SHM_INFO 14
105
106
107/* Pretend the sys_shmat and sys_shmctl syscalls are defined */
108struct linux_sys_shmat_args {
109 syscallarg(int) shmid;
110 syscallarg(void *) shmaddr;
111 syscallarg(int) shmflg;
112 syscallarg(u_long *) raddr;
113};
114
115struct linux_sys_shmctl_args {
116 syscallarg(int) shmid;
117 syscallarg(int) cmd;
118 syscallarg(struct linux_shmid_ds *) buf;
119};
120
121struct linux_sys_shmget_args {
122 syscallarg(key_t) key;
123 syscallarg(size_t) size;
124 syscallarg(int) shmflg;
125};
126
127#ifdef SYSVSHM
128#ifdef _KERNEL
129__BEGIN_DECLS
130int linux_sys_shmget(struct lwp *, const struct linux_sys_shmget_args *, register_t *);
131int linux_sys_shmat(struct lwp *, const struct linux_sys_shmat_args *, register_t *);
132int linux_sys_shmctl(struct lwp *, const struct linux_sys_shmctl_args *, register_t *);
133void linux_to_bsd_shmid_ds(struct linux_shmid_ds *,
134 struct shmid_ds *);
135void linux_to_bsd_shmid64_ds(struct linux_shmid64_ds *,
136 struct shmid_ds *);
137void bsd_to_linux_shmid_ds(struct shmid_ds *,
138 struct linux_shmid_ds *);
139void bsd_to_linux_shmid64_ds(struct shmid_ds *,
140 struct linux_shmid64_ds *);
141__END_DECLS
142#endif /* !_KERNEL */
143#endif /* !SYSVSHM */
144
145#endif /* !_LINUX_SHM_H */
146